Constructing Narratives Essay Example | Topics and Well Written Essays - 1250 words

Constructing Narratives - Essay Example Therefore, in order to enhance their narrative construction, ELL students need to be aware of various elements of language use. This paper will consider the function of storytelling in facilitating the ELL’s capacity to construct narratives, describing the various ways in which storytelling enhances these students’ capacity to recount events. This paper will also examine what ELL students need to be aware of regarding language use so as to enhance their construction of written and oral narrative. All over the world, people convey stories to their children. Storytelling is a universal action, which is perhaps the most dominant kind of discourse. Through making use of stories and storytelling, ELLs having different beliefs and religious and cultural backgrounds can exist harmoniously in the classroom environment. Storytelling and stories essentially provide students from different religious, cultural and linguistic backgrounds an effective mechanism for appreciating their world, connecting both with their cultures, as well as the cultures of other students and expressing themselves effectively to others (Diaz-Rico & Weed, (2006). The essence of storytelling is a communicative device, which requires the storyteller and listener to work together collaboratively as transmitters and receivers of both ideas and thoughts. Therefore, in the context of an ELL classroom, storytelling is a means of communication, which allows student storytellers and listeners to share, combine and exchange their experiences in order to create associations and connections. Storytelling helps construct narratives by teaching ELLs about life, about themselves and about other students. Storytelling creates cultural understanding, which, in turn, enhances the students’ capacity to explore various aspects of their lives, thereby creating narratives based on their cultural roots. Within the context of constructing narrative, storytelling allows ELLs gain insights into variou s values and traditions and consider new ideas. Furthermore, storytelling enhances children’s capacities to empathize with unfamiliar situations and places. The development of narrative is also possible through storytelling because stories enable children to reveal their commonalities and differences in the cultures represented in the ELL classroom, particularly by enabling children to open up with regard to their cultural roots. Storytelling and stories also promote narrative creation among ELLs by promoting students’ relaxation and overall well-being (Bruner, 2002). This is primarily because storytelling enhances the willingness of ELL students to communicate their feelings and thoughts. This, in turn, enhances the construction of narrative. Additionally, stories and storytelling encourage ELLs to participate actively in all aspects of their classrooms and lessons, for instance, the construction of narrative, particularly with regard to verbal narrative. Overall, mos t stories involve the explanation of various actions taken by the storyteller to achieve a certain result (Craig, Hull, Haggart & Crowder, 2001). As a consequence, storytelling typically entails an extensive use of words for recounting purposes. In essence, storytelling within the ELL classroom helps ELL students enhance their verbal proficiency, thereby enhancing their narrative capabilities. In addition, stories have

What does it mean to be the best qualified Assignment

What does it mean to be the best qualified - Assignment Example Managers know that they would do their best to maintain their integrity once they are offered a chance for they know that they do not have many alternatives waiting for them in the market. Also, people who are not the toppers in their academic career are generally more active and brilliant on the practical side. â€Å"Testing for job skills is appropriate, although employers need to be wary of testing for attributes which do not relate to the requirements of the job.† (Rey and Mignin, 2008, p. 62). It is not fundamentally important for an individual to be pre-equipped with all the knowledge and expertise required for a particular job. What is more important for managers is to make sure that the individuals they hire, have enough spark and talent to fit into the organization as a responsible employee and develop the necessary skills in the least possible time. Such people are indeed, the best qualified for the

Solenoid Operated Piston Pump Engineering Essay

Solenoid Operated Piston Pump Engineering Essay This project is aimed at analysing and designing a solenoid operated piston pump which is capable of delivering solution (this report assumes water) at a flow rate of 1 litre/min. However, the customer usage requires the flow rate to remain between 0.9 and 1.1 litre/min at an ambient pressure of about 1 bar. The operation mode of the piston pump is described below using the diagram: OscillPistonPump Fig 1.1 Solenoid Operated Piston Pump1 The solenoid coil (4) generates an electromagnetic field by the single wave diode rectified current flowing through the coil. Each current pulse moves the piston (5) against the pressure spring (3). This movement reduces the volume in the suction chamber causing an increase in pressure (P a 1/V), which opens the valve (6) in the piston, thereby allowing the liquid to run into the pressure side. When the current acting on the solenoid pulse is off, the pressure spring pushes back the piston toward the pressure side. The increase of pressure caused by the piston movement closes the piston valve (6) and the liquid flows through the valve (7) set in the pressure connection (8) and into the pressure pipe. The piston movement also simultaneously increases the volume in the suction chamber, thereby reducing the pressure below the chamber. The low pressure in the suction chamber opens the valve (2) set in the suction connection (1), and the liquid is sucked into the pump and the cycle starts again. The piston size and the length of its displacement define the flow rate. The pump will run without damage when the liquid flow is stopped momentarily1. This design concentrated on the piston, suction chamber and pressure springs design. Although references were made to the valves and solenoid force, engineering analysis were not carried out on them. CHAPTER 2 INITIAL ENGINEERING DESIGN ANALYSIS This section considered the engineering analysis of the operation of the piston pump to achieve the require specifications. The given specifications are; Flow rate Q = 1 Lit/min Frequency F = 60 cycles/sec Ambient Pressure = 1 bar Using the above specifications, the length of stroke of the piston, which is also termed as the â€Å"Swept Volume†, can be calculated using the relation below: Q = Volumetime=Volume Ãâ€"frequency = Ï€ d2 L4 Ãâ€"f ∠´L= 4QÏ€d2f Where: Q = Flow Rate =1 lit/min= 1.667 Ãâ€"104 mm3/sec f = Frequency (cycles/sec) L = Length of stroke/Swept volume (mm) d = Diameter of piston/suction chamber (mm) The diameter was varied from 1 to 20 mm and the corresponding lengths of stroke were obtained at different frequencies of 40, 45, 50, 55 and 60 cycles/sec. The results obtained were plotted (See appendix 1). After careful look, the frequency at 40 cycle/sec, so subsequent calculations would be based on this. It was also noticed that reasonable pair of dimensions of the diameter and length occurred around the diameters 5-10mm, therefore subsequent calculations were based on this range. 2.1 LOAD ANALYSIS The load analysis was carried out on each component designed as indicated below: A. Piston: The load analysis on the piston was done by isolating the piston and analysing the forces acting it. The different forces acting on the piston are as shown below: Force on piston causing acceleration Magnetic force from solenoid coil Resultant spring force Kinematic frictional force Gravitational force Resultant hydraulic force (including assumed viscous effect) This is assuming that atomic, initial static frictional force and temperature effects are negligible. The force analyses were carried out considering three different cases under which the pump operation can undergo. The intake and ejection strokes were also analysed separately to reduce complications. The difference between the intake and ejection stroke is that, the magnetic force from the solenoid is zero during ejection, because the solenoid is off: Case I: This is when the piston pump is used horizontally, that is, it is used to pump fluid on the same datum. This means that the gravitational effect and the height difference in the hydraulic force will be zero. The relationship between the forces will therefore be: Intake stroke: Force causing motion = Force from solenoid Resultant spring force Resultant hydraulic force Frictional force Ejection stroke: Force causing motion = Resultant spring force Resultant hydraulic force Frictional force Case II: This considered the case when the pump is used to transfer fluid from a higher level to a lower level. This means that the gravitational effect will favour the direction of flow therefore reducing the force needed to drive the piston. The relationship between the forces will therefore be: Intake stroke: Force causing motion = Force from solenoid Resultant spring force Resultant hydraulic force Frictional force Gravitational force Ejection stroke: Force causing motion = Resultant spring force Resultant hydraulic force Frictional force + Gravitational force Case III: This considered the case when the piston pump is used to deliver fluid from a lower level to a higher level. The difference between this case and case II is in the gravitational effect and the datum difference in the hydraulic effect. The design load analysis was done under this circumstance because pumps are usually used for this particular purpose. Even with this design concept, the pump can still be used for other cases, but it might deliver fluid at a higher flow rate, which could still be in the boundaries of the given tolerance of the flow rate. The relationship between the forces will therefore be: Intake stroke: Force causing motion = Force from solenoid Resultant spring force Resultant hydraulic force Frictional force + Gravitational force Ejection stroke: Force causing motion = Resultant spring force Resultant hydraulic force Frictional force Gravitational force. The different forces were calculated as follows using the free body diagram of the piston shown below: Figure 2.1 Boundary conditions of intake and ejection strokes Force from solenoid coil= Fs Force on piston causing motion = Mpa Where Mp = mass of piston kg and a = acceleration of piston (mm/s2) Mp= Ï  Ãâ€"V Ï  = Density of material (Stainless steel) =8Ãâ€"10-6 (kg/mm3) V=Volume of fluid displced in one stroke mm3= Q Ãâ€"t= Qf where f=45 cycles/sec=90 strokes/sec (2 strokes=1 cycle) Mp= Ï  Ãâ€" Qf=8Ãâ€"10-6 Ãâ€" 1.667 Ãâ€"10490=1.482Ãâ€"10-3 From law of motion; v2= u2+ 2aS u = 0 ∠´a=v22S Also v= St= S Ãâ€"f v=Velocity (mm/s) and S= L=Length of stroke (mm) ∠´a=L Ãâ€"f22L= L Ãâ€" f22= L Ãâ€" 9022 The length was varied from 5 to 10 mm, and different accelerations were obtained (See appendix 2). Resultant spring force = K2∆x- K1∆x= ∆xK2- K1= ∆x∆K Where K1 and K2=Stiffness of springs 1 and 2 respectively (N/mm) ∆x=L=Stoke length (mm) Kinematic frictional force = ÃŽ ¼kÃâ€"N= ÃŽ ¼kÃâ€"Mpg Where ÃŽ ¼k=Coefficient of kinematic friction N=Normal force= Mpg g=acceleration due to gravity=9810 mm/s2 Gravitational force = Mpg Hydraulic force = Total Change in Pressure ∆P (N/mm2)Surface Area of Piston A (mm2) From Bernoulllis equation   P1Ï g+ V122g+ Z1= P2Ï g+ V222g+ Z2 ∆P= P1-P2=Ï V22-V122+ ∆ZÏ g Q= A1V1= A2V2 ,   then V2= QA2= A1V1A2 and V1= QA1 ∆P= Ï A1V1A22-V122+ ∆ZÏ g= V12Ï 2 A1A22- 1+ ∆ZÏ g ∆P= Ï  Q22A12A1A22- 1+ ∆ZÏ g Where Q= Flow rate (mm3/s) , Ï  =density of water =1Ãâ€"10-6 (kg/mm3) A1and A2=Area mm2   and V1 and V2=Velocity (m/s) ∆Z=L=Length of Stroke mm Including the discharge coefficient C = 0.98 to account for viscous effect, ∆P therefore becomes: ∆P= Ï  Q22C2A12A1A22- 1+ LÏ g ∠´ Hydraulic force = Ï  Q22C2A12A1A22- 1+ LÏ gSurface Area of Piston A mm2 = Ï  Q22C2A12A1A22- 1+ LÏ gA2- A1 The forces were algebraically added according the ejection stroke equation developed above (case III) to obtain ?K at different diameter of pistons, fixing inner diameter of Piston D2 (corresponding to A2) = 0.5, 1, 1.5, 2 and 2.5mm (See appendix 3). Force causing motion = Resultant spring force Resultant hydraulic force Frictional force Gravitational force. Mpa= L ∆K- Ï  Q22C2A12A1A22- 1+ LÏ gA2- A1- ÃŽ ¼kMpg- Mpg ∆K= 1LMpa+ ÃŽ ¼kg+g+ Ï  Q22C2A12A1A22- 1+ LÏ gA2- A1 The hydraulic effect is due to the fluid forced out from the suction chamber into the outlet. Therefore the A1 and A2 will be the area of the piston and the outlet, corresponding to diameters D1 and D2 respectively. Also the outlet diameter was assumed to be equal to the inner diameter of the piston. The results obtained for difference in stiffness ?K above, were used to obtain the force from solenoid coil Fs using the injection stroke equation above. Also different diameter of piston were used while varying the inner diameter of piston D2 (corresponding to A2) = 0.5, 1, 1.5, 2 and 2.5mm (See appendix 4). Considering the intake stroke equation for case III: Force causing motion = Force from solenoid Resultant spring force Resultant hydraulic force Frictional force + Gravitational force Mpa= Fs-L∆K- Ï  Q22C2A12A1A22- 1+ LÏ gA1- ÃŽ ¼kMpg+ Mpg Fs= Mpa+ ÃŽ ¼kg-g+L∆K+ Ï  Q22C2A12A1A22- 1+ LÏ g A1 The hydraulic effect is due to the change in pressure as the fluid passes through the piston, because of the reduction in area. Therefore the A1 and A2 will be the area of the piston outer and inner diameter, corresponding to diameters D1 and D2 respectively. B. Pressure Springs: The load analysis of the spring was also done by isolating the spring and analysing the forces acting it. Considering the ejection stroke of upper spring (spring 1), the different forces acting on the spring are as shown below: Force on piston causing acceleration Spring force Resultant hydraulic force (including assumed viscous effect) This is assuming that the frictional force on spring is negligible because the surface area contacting the wall is small. Force causing motion = Spring force + Resultant hydraulic force Mpa= LÃâ€"K1+ Ï  Q22C2A12A1A22- 1+ LÏ g A1 K1=1LMpa- Ï  Q22C2A12A1A22- 1+ LÏ g A1 ∠´K2=K1+∆K Where Force on springs Fsk=KÃâ€"Length of stroke The values of stiffness of springs 1 and 2 were calculated using the relationships above at different outer and inner diameters of the piston. The graphs were plotted to see the variations (See appendix 5 and 6). C. Inlet Valve and Spring: Considering also the inlet valves and analysing the forces acting it, the injection stroke is caused by an increase in volume of the suction chamber, causing a corresponding decrease in pressure. Therefore the different forces acting on the inlet valve are given below: Inlet spring force at compression Resultant hydraulic force (including assumed viscous effect) This is assuming that the frictional force and gravitational force on the valve is negligible because the valve is light. Resultant Pressure Change= ?P From Gas Law: P1V1= P2V2 P1 and P2 are the initial and final pressures of both the inlet and suction chamber respectively (N/mm2). The initial pressure P1 is assumed to be equal to the external pressure which is given to be equal to the atmospheric pressure Pa = 1 bar = 0.1 N/mm2. That is why fluid is not flowing because there is no pressure difference, or P1 was higher than Pa P2= P1V1V2= PaV1V2 where V2=V1+Vs and Vs=Swept Volume per stoke Vs=Flow rateFrequency in stroke/sec=1.667Ãâ€"10490 =185.22 mm2/stroke P2= P1V1V1+Vs ∆P1=Change in pressure due to swept volume= Pa-P2 ∆P1=Pa-PaV1V1+Vs=Pa V1+Vs-PaV1 V1+Vs=PaV1-PaV1+PaVsV1+Vs=PaVsV1+Vs Where V1 = VT and it is the total volume of the inlet spring area, suction chamber and the inner space of the piston. ∆P2=Pressure Change due to area changes ∆P2=Ï  Q22C2A12A1A22- 1+ LÏ g The above pressure change is the sum of the pressure changes from the inlet through suction chamber and into pistons inner diameter. This is negligible because the pressure drops as it enters the suction chamber and increases as it enters the inner diameter of piston, thereby almost cancelling out. ∆P=∆P1=PaVsVT+Vs Hydraulic force=spring force at compression ∆P1A3=PaVsA3VT+Vs= K3x3 PaVs=K3x3A3VT+ K3x3A3Vs VT=PaVs- K3x3A3VsK3x3A3 Where A3=Inlet area mm2, K3=Inlet Spring Stiffness (N/mm) and x3=Spring movement=Valve lifting mm The values the total internal volume VT was obtained at different values of the diameter of the inlet D3 (corresponding to A3). The value of the spring force K3x3 was varied from 0.01 to 0.05 N and the variations were plotted to see an appropriate one (See appendix 7). 2.2 Component Design and Selection The component design has been carried out along with the load analysis shown above. The desired dimensions for different components were then selected after a careful study and analysis of the graphs plotted. The dimensions were selected based on those that satisfy the required specifications, reasonably able to be manufactured and can be selected from the manufacturers catalogue as in the case of the springs2. Below are the component dimensions: Solenoid: Solenoid Frequency: 45cycles/sec = 90 strokes/sec Force from solenoid coil: 108.8N Length of stroke: 7.367 mm Piston: Piston outer diameter: 8 mm Piston inner diameter: 2 mm Springs: Pressure spring 1 rate = 5.771 N/mm Force on spring 1 = Rate * length of stroke = 5.771 * 7.367 = 42.515 N Pressure spring 2 rate = 14.683 N/mm Force on spring 1 = Rate * length of stroke = 14.683 * 7.367 = 108.17 N From the above calculations and estimated values of the spring rates, the most accurate spring chosen from the compression spring catalogue are (see appendix 8 and 9): Spring 1: C6609150 Wire diameter: 1.02 mm Outer Diameter: 7.62 mm Free length: 15.88 mm Rate: 5.81 N/mm Spring 2: D22110 Wire diameter: 1.25 mm Outer Diameter: 7.55mm Free length: 17mm Rate: 15.03 N/mm Inlet: Inlet spring stiffness = 0.02 N/mm Inlet spring length = 9.804 mm Inlet diameter = 1.78 mm 2.3 Stress Analysis The stress analysis was carried out on just two components as shown below. This was because these are the two components whose failure affects the pump operation most. A. Piston: The two stresses acting on the piston are normal and shear stresses which is given as. Stress (N/mm2) sij= Force (N)Area (mm2) The notation is to differentiate between the direction and plane of action, where the first digit represents the plane of action and the second digit represents the direction of force. When the notations are different, it signifies shear stress and when the notations are the same it means normal stress. The force on the piston varies as the piston goes through the cycle, therefore the different forces and principal stresses were calculated as the spring compresses and stretches. This was shown in appendix 10 and 11, but the calculations of the maximum and minimum principal stresses at the springs peak are shown below. The principal stresses were calculated because they are the cause of fracture in a component3. Considering the piston and spring 1: Fig 2.2: Stresses acting on piston from spring 1 and wall3 s11= 0 because there is no horizontal force in that direction s12= Force from SolenoidSurface area of piston= Fsp Do Lp= 108.8pÃâ€"8Ãâ€"15=0.2886 N/mm2 Where D0=Outer diameter of piston mm, Lp=Length of Piston (mm) s22= Force from spring 1Outer Area-Inner Area= K1Lp4 Do2- Di2 s22=5.771 Ãâ€"7.367p4 82- 22= 42.51547.1239=0.9022 N/mm2 s21= 0 because there is no horizontal force in that direction Considering the piston and spring 2: s11= 0 because there is no horizontal force in that direction s12= Force from SolenoidSurface area of piston= Fsp Do Lp= 108.8pÃâ€"8Ãâ€"15=0.2886 N/mm2 Where D0=Outer diameter of piston mm, Lp=Length of Piston (mm) s22= Force from spring 2Outer Area-Inner Area= K2Lp4 Do2- Di2 s22=14.638 Ãâ€"7.367p4 82- 22= 107.838147.1239=2.2884 N/mm2 s21= 0 because there is no horizontal force in that direction The total principal stress which is the usual cause of fracture was calculated using the total normal stresses from the springs and the shear stress from solenoid. Total shear stresses: Ts12=s12 from Spring 1+ s12 from Sprig 2=0.2886+0.2886= 0.5772 Total normal stresses: Ts22=s22 from Spring 1+ s22 from Sprig 2=0.9022+2.2954= 3.1976 Therefore the principal stresses: s11s22- s(s11+s22)+s2-s122=0 0Ãâ€"3.1976- s(0+3.1976)+s2-0.57722=0 s2-3.1976s-0.3331=0 Principal stresses; smin=-0.101 N/mm2, smax=3.2986 N/mm2 B. Pressure Springs: The major stress acting on the spring is shear stress acting on the coils. The force and consequentially the shear stress on the springs vary as the piston deflection (i.e. length of stroke) increases and decreases. The various forces and shear stresses were calculated and the graph plotted (see appendix 12). But the calculation of the maximum shear stress, which occurs at the full deflection is shown below4: Fig 2.4: Force acting on spring4 Shear stress tmax= 8FDWpd3 Where F=Force on spring N D=Mean outer diameter of spring mm d=diameter of spring coil mm W = Wahl Correction Factor which accounts for shear stress resulting from the springs curvature W=4C-14C-4+0.615C C=Dd Considering Spring 1 Fmax= K1Ãâ€"Length of stroke=5.771Ãâ€"7.367=42.515 N/mm2 D=7.62 mm and d=1.02 mm ?C=Dd= 7.621.02=7.4705 W=4C-14C-4+0.615C= 4Ãâ€"7.4705-14Ãâ€"7.4705-4+0.6157.4705=1.1982 tmax= 8FmaxDWpd3= 8Ãâ€"42.515 Ãâ€"7.62Ãâ€"1.1982pÃâ€"1.023=931.113 N/mm2 Considering Spring 2 Fmax= K1Ãâ€"Length of stroke=14.638Ãâ€"7.367=108.17 N/mm2 D=7.55 mm and d=1.25 mm ?C=Dd= 7.551.25=6.04 W=4C-14C-4+0.615C= 4Ãâ€"6.04-14Ãâ€"6.04-4+0.6156.04=1.2506 tmax= 8FmaxDWpd3= 8Ãâ€"108.17 Ãâ€"7.55Ãâ€"1.2506pÃâ€"1.253=1331.119 N/mm2 CHAPTER 3 INITIAL MANUFACTURING DESIGN ANALYSIS 3.1 Dimensions The dimensions of all the main components; piston, springs, cylinder and valves had been obtained from the calculations and graphical analysis made above. However, the detailed dimensions of all components namely; pump body (left and right side), cylinder and liners, piston, springs and valves are shown in the CAD drawing in appendix 13. 3.2 Tolerances Tolerance for Stroke Length The statistical tolerance of the stoke length was calculated using integral method, which is much more effective than an additional tolerance. Given the tolerance of the flow rate as  ± 0.1litres/min, the tolerance of the frequency was assumed to be  ± 5 cycles/sec under normal distribution condition. The tolerance of the stroke length was calculated as follows: Standard deviation s=Tolerance3 Ãâ€"Cp where Cp=process capability index In general manufacturing industry, a process capability index (Cp) of 1.33is considered acceptable. Therefore Cp Flow rateQ=1  ±0.1 lit/min= 1.667 Ãâ€"104  ±1.667 Ãâ€"103mm3/sec   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   ÏÆ'Q=3.33 Ãâ€"1033 Ãâ€"1.33=8.356 Ãâ€"102 Frequency F= 45  ±5 cycles/sec (Assuming a Normal distributed variable)   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   ÏÆ'f=103 Ãâ€"1.33=2.506 Therefore the flow rate and frequency could be written as; Q ~ N 1.667 Ãâ€"104 , 8.356 Ãâ€"102 mm3/sec f ~ N 45 , 2.506 cycles/sec Q = Volumetime=Volume Ãâ€"frequency = Ï€ d2 L4 Ãâ€"f ∠´L= 4QÏ€d2f Using differential tolerance: ÏÆ'∅2= i=1n∂∅∂xi2 ÏÆ'xi2 ÏÆ'L2= ∂L∂Q2ÏÆ'Q2+ ∂L∂f2ÏÆ'f2+ ∂L∂d22ÏÆ'd2 ÏÆ'L2= 4Ï€ 1ÃŽ ¼d2 Ãâ€"ÃŽ ¼f2ÏÆ'Q2+ ÃŽ ¼QÃŽ ¼d2 Ãâ€"ÃŽ ¼f22ÏÆ'f2+ ÃŽ ¼QÃŽ ¼d3 Ãâ€"ÃŽ ¼f2ÏÆ'd2 Ãâ€"2 ∠´Tolerance=ÏÆ'3 Ãâ€"Cp The standard deviations and tolerances of the stoke length were calculated using the above equations, while varying the diameter from 1 to 20 mm, and the results were plotted out (see appendix 14). Tolerance for Piston Principal Stress Assuming a normally distributed around the maximum principal stress acting on the piston, the standard deviation and the tolerance of the maximum principal stress was calculated using the load distribution obtained in appendix 11. ∠´3ÏÆ'=3.2918-0.5772=2.7146 Tolerance=CpÃâ€"3ÏÆ'=1.33Ãâ€"2.7146=3.6104 N/mm2 Upper and lower limit=3.61042= ± 1.8052 N/mm2 Tolerance for Springs Shear Stress Also assuming a normally distributed around the maximum shear stress acting on the springs, the standard deviation and the tolerance of the maximum shear stress was calculated using the load distribution obtained in appendix 12. For spring 1: ∠´3ÏÆ'=931.113-0=931.113 Tolerance=CpÃâ€"3ÏÆ'=1.33Ãâ€"931.113=1238.38 N/mm2 Upper and lower limit=1238.382= ± 619.19 N/mm2 For spring 2: ∠´3ÏÆ'=1331.119-0=1331.119 Tolerance=CpÃâ€"3ÏÆ'=1.33Ãâ€"1331.119=1770.39 N/mm2 Upper and lower limit=1770.392= ± 885.195 N/mm2 3.3 Fits The components that are fitted into the cylinder, namely; cylinder liner, piston springs 1 and 2 are almost of equal diameter. But because of the consideration of the fits and limits to give some allowance a transition fit was chosen from â€Å"Data Sheet 4500A British Standard selected ISO Fits-Hole Basis†. Since it fell in between the nominal size of 0 6 mm, the transition fit selected was H700.015 for the hole and k60-0.009 for the shaft5. 3.4 Material Selection Piston and Cylinder The piston and the cylinder are to be made of stainless steel grade 431. This is due to the prevention of fracture which could be caused by principal stress. From the maximum principal stress obtained for the piston above (3.2986 N/mm2 = 3.2986 MPa), it is sure that the material which has a yield strength of 655 MPa will be able to prevent failure. Also the other reason for choosing this material is because of its high resistance to corrosion6. Since the piston and cylinder interacts with the fluid, which increases the tendency for corrosion to occur, it is quite safe to use a highly corrosion resistance material like this. It is also very easily machined in annealed condition. The properties of the stainless steel grade 431are shown in appendix 156. Springs The springs are to be made of stainless steel grade 316. This is also due to the strength of the grade in preventing fracture, breakage and buckling of the spring due to the shear stress acting on it. From the maximum shear stress calculated above (1331.119 N/mm2 = 1.331 GPa), it is sure that this grade of stainless steel with an elastic modulus of 193 GPa will be able to withstand the compression. The material is also highly corrosion resistant and relatively easy to machine. The other properties of the stainless steel grade 316 are shown in appendix 156. Valves The valves are to be made of polytetrafluoroethylene PTFE, which is a thermoplastic. This was chosen because the material has to be light and can easily float. Also, it has very low coefficient of friction, which reduces the fluid drag force and wears on the piston and spring. 3.5 Surface Finish The surface finishing chosen for the manufacturing of the parts was to be 0.8  µm Ra. This is to reduce friction and rate of wear, because there are lots of parts moving against each other. The grinding process requires a very great accuracy because it is a relatively delicate manufacturing process. 3.6 Geometric Tolerance In obtaining the tolerance of the components, since algebraic addition of tolerances is very unrealistic and will not be efficient, the tolerances of components that fit into each other were taken from the â€Å"Data Sheet 4500A British Standard selected ISO Fits-Hole Basis†5. These are show below S/No Parts Dimensions (mm) Tolerances (mm) Drawings 1 Cylinder 11.00 + 0.015 2 Cylinder liner 8.00 0.009 3 Piston 2.00 0.006 4 Spring 1 17.00  ± 0.0015 3.7 Process Selection The manufacturing processes of the various parts of the pump will be very important aspects of the design.The parts to be manufactured are pump body, cylinder liners and piston. It will take a great deal of accuracy in carrying out the process, because the geometry of the parts is very delicate. Any wrong dimension will affect the output or operation of the pump. There are three steps in manufacturing the components mentioned above. Firstly, all the components would be manufactured by casting, which would probably not give the accurate dimensions. Then a turning/boring process can then be carried out, using a CNC or lathe machines, to achieve better dimension. The last process is the surface finish, which gives a smoother and precise dimension. It is relatively easier to manufacture the components by this method because of the intricacies of the geometry and dimensions, and also the materials chosen are easily machined. The manufacturing process of the springs would not be considered in this report because they are provided by suppliers. CHAPTER 4 DESIGN OPTIMISATION 4.1 Component Manufacturing Risk Assessment Component Name Pump Body (Left Right Side) Calculation of qm Drawing number 001 mp = 1 Ãâ€" 1.6 = 1.6 gp = 1.7 Ãâ€" 1 Ãâ€" 1 Ãâ€" 1 Ãâ€" 1.1 Ãâ€" 1.1 = 2.057 Ajustable tol= Design tolmpÃâ€"gp = + 0.0151.6 Ãâ€"2.057=+0.00455 tp = 1.7Ãâ€"1 = 1.7 sp = 1 Ãâ€" 1.3 = 1.3 qm = 1.7 Ãâ€" 1.3 = 2.21 Manufacturing variability risk, qm = 2.21 Material 431 Stainless Steel Manufacturing Process Turning/Boring Characteristic Description Holes at centre to edge Characteristic Dimension 8 mm Design Tolerance + 0.015 Surface Roughness 0.8 µm Ra Component Name Piston Calculation of qm Drawing number 005 mp = 1 Ãâ€" 1.6 = 1.6 gp = 1 Ãâ€" 1 Ãâ€" 1 Ãâ€" 1 Ãâ€" 1 Ãâ€" 1.1 = 1.1 Ajustable tol= Design tolmpÃâ€"gp = 0.0061.6 Ãâ€"1.1=0.0034 tp = 1.7Ãâ€"1 = 1.7 sp = 1 Ãâ€" 1 = 1 qm = 1.7 Ãâ€" 1 = 1.7 Manufacturing variability risk, qm =1.7 Material 431 Stainless Steel Manufacturing Process Turning/Boring Characteristic Description Holes at centre to edge Characteristic Dimension 2 mm Design Tolerance 0.002, -0.008 Surface Roughness 0.8 µm Ra  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The values of the component manufacturing risk analysis obtained above are considerably with a low risk. This shows that the processes chosen for the manufacturing of the components are acceptable. 4.2 Failure Mode and Effects Analysis (FMEA) The failure mode and effects analysis (FMEA) is an analytical technique performed to ensure that all possible failure modes of the piston pump have being identified and address. Below are the predicted failure modes of each components of the piston pump, the caused, effects and the suggested solutions: It can be seen from the FMEA above that the spring breakage has the greatest severity, but the wear on all the components has the greatest risk priority number. This is because wear would be experience by the customer over time of use which made the risk priority number very high. Therefore, while desig

Differential Association Essay -- essays research papers fc

Sutherland’s Differential Association Born August 13, 1883 in Gibbon, Nebraska, Edwin H. Sutherland grew up and studied in Ottawa, Kansas, and Grand Island, Nebraska. After receiving his B.A degree from Grand Island College in 1904, he taught Latin, Greek, History, and shorthand for two years at Sioux Falls College in South Dakota. In 1906 he left Sioux Falls College and entered graduate school at the University of Chicago from which he received his doctorate. (Gaylord, 1988:7-12) While attending the University of Chicago he changed his major from history to sociology. Much of his study was influenced by the Chicago approach to the study of crime that emphasized human behavior as determined by social and physical environmental factors, rather than genetic or personal characteristics. (Gaylord, 1988:7-12) With his studies completed he began work at the University of Minnesota from 1926 to 1929 where his reputation as a leading criminologist was enhanced. At this time, his focus became sociology as a scientific enterprise whose goal was the understanding and control of social problems, including crime. (Gaylord, 1988:13) After his time at Minnesota he moved to Indiana University and founded the Bloomington School of Criminology at Indiana University. While at Indiana, he published 3 books, including Twenty Thousand Homeless Men (1936), The Professional Thief (1937), and the third edition of Principles of Criminology (1939). Finally in 1939 he was elected president of the American Sociological Society, and in 1940 was elected president of the Sociological Research Association. Similar in importance to strain theory and social control theory, Differential Association theory was Sutherland's major sociological contribution to criminology; . These theories all explain deviance in terms of the individual's social relationships. By attributing the cause of crime to the social context of individuals, Differential Association departs from the pathological perspective and biological perspective. "He rejected biological determinism and the extreme individualism of psychiatry, as well as economic explanations of crime. His search for an alternative understanding of crime led to the development of Differential Association theory. In contrast to both classical and biological theories, Differential Associat... ...s Sutherland a pioneer for all criminologists. Works Cited: Akers, Ronald L.. (1996). Is differential association/social learning cultural deviance theory? Criminology. Gaylord, Mark S and John F. Galliher. (1988). The criminology of Edwin Sutherland. Transaction, Inc Jacoby, Joseph E.. (1994). Classics of criminology. Waveland press, Inc. Matseuda, Ross L.. (1988). The current state of differential association theory. Crime and Delinquency (July 1988). Sage Publication Pfohl, Stephen. (1994). Images of deviance and social control. McGraw-Hill, Inc. Skinner, William F. and Anne M. Fream(1997). A social learning theory analysis of computer crime among college student. Journal of research in crime and delinquency. Sage Publication Sutherland, Edwin H.. (1974). Criminology. J.B. Lippincott Company Sutherland, Edwin H.. (1961). White-collar crime. Holt, Rinehart and Winston, Inc Sutherland, Edwin H.. (1937). The professional thief. The university of Chicago. Tittle, Charles R. and Mary Jean Burke(1986). Modeling Sutherland’s theory of differential association: Toward an empirical clarification. Social Forces. Warr, Mark (1993). Parents, Peers, and Delinquency. Social forces.

BMG entertainment Essay

Strengths: *First major record label to create websites branded towards different music genres. First major record label to use downloading technology to promote sales of CD’s and cassettes. *Merged with AOL–AOL has the largest internet service provider in the industry. *BMG was the largest music club in the world, and arguably the leader of the five major labels. *BMG set up a series of websites dedicated to specific genres of music. These sites linked fans to the artist’s websites, where they could download or purchase CD’s. (Another innovative move from BMG) Weaknesses: * Through sites like CDNow and Amazon.com customers had the option of having CD’s or cassettes mailed to them. Consumers may not want to â€Å"deal† with downloading music from the net. They may just stick with what they have. Many sites had illegal downloads, so the conventional consumer may not want to bother with this new type of technology. * Although BMG was the first company to create branded websites for specific music genres, they only focused on promotional aspects here, rather than focusing on selling music and in turn making money. Opportunities: * The innovativeness and newness of the digital era could spark a surge of  consumer interest in the music industry. For instance, the CD had a big impact on industry revenue; owners of tapes simply replaced their collections with CD’s. * ;BMG is arguably the leader in the music industry, and consequently has the influence to take its existing customers with them into the digital mp3 era. * BMG had close relationships with all the players involved in setting tech standards for downloadable music. This could give BMG the heads up on newest technology, and an advantage for market entry. * If BMG begins to sell music on the internet, they can reduce their costs greatly by doing away with distribution and manufacturing expenses. Threats: * -In 1929 the new technology of radio posed a serious threat to the music industry. Could a similar event take place with Digital music, where BMG loses a lot of money due to a decrease in CD and cassette sales? * -Time Warner had one of the most advanced cable systems in the US. They were experimenting with services such as video on demand and HD TV so the possibility of digital music was definitely there for TW, and they had the internet resources to distribute it too. * -Would conventional music buyers want to go through the â€Å"hassle† of joining a website, installing a media player, and then buying additional software to play the music at their convenience? * -With a 56K modem (one that many still used 7 years ago), a song took roughly 7 minutes to download. Ten songs can take 70 minutes, and that is not appealing or convincing enough for conventional consumers to switch over to mp3’s usage. * -Sony’s Kiosks in retail music stores posed a threat for BMG. These kiosks  allowed customers to choose from a variety of over 4,000 songs, and create their own CD within 15 minutes. Attacking Piracy at the Source- the CD’s In order to attack piracy, record labels must start at the source. Nearly all of the music traded on the Internet originally comes from CDs, which can be easily copied, or â€Å"ripped,† onto any computer as MP3 digital audio files. Most analysts point to CDs as the biggest hole in the music industry’s strategy for aiding online piracy. The recording industry wants to make it harder for consumers to directly copy CDs, but it faces enormous hurdles. First, any barriers to copying must be â€Å"backwards compatible†Ã¢â‚¬â€œmeaning the new technologies would have to work on old CD players that don’t screen for pirated material, and vice versa. Eventually, the group â€Å"SDMI† was formed, consisting of all the major players involved in setting the technological standards for downloading music.(AT&T, Microsoft, Liquid Audio, IBM, etc) SDMI’s efforts have focused on installing digital â€Å"watermarks† on CD tracks that would enable copyright holders to trace illegal copies and to create devices that would refuse to play copied tracks. In its first phase, SDMI selected a watermark system created by Verance Technologies as the global standard. Future record releases for BMG- Copy Management. It is the Record label’s responsibility to protect the work of their artists. Copy management technology is one of several responses to illegal file sharing and mass copying, which has had a detrimental effect on the music industry (unit shipments have fallen 26% from 1.16 billion units in 1999 to 860 million units last year). There are a few features that are new to this type of technology: Device playability- These discs play just like an enhanced CD. Certain products recently tested had playability issues with DVD players, car  stereos and game consoles, yet these discs play on nearly all DVD players, car stereos, etc. Anywhere an enhanced CD will play, these discs will play. Mac playability – The discs can now be played on a Mac like any other CD. Voluntary Collective Licensing- Music Industry and the Internet Many Record Labels have spent countless amounts of time evaluating alternatives that would pay artists while making file sharing legal. One solution that has emerged as the favorite is voluntary collective licensing. The concept is simple: the music industry forms a collecting society which then offers file-sharing music fans the opportunity to â€Å"get legit† in exchange for a reasonable regular payment, for example $5 per month. So long as they pay, the fans are free to keep doing what they are going to do anyway–share the music they love using whatever software they like on whatever computer platform they prefer–without fear of lawsuits. The money collected gets divided among rights-holders based on the popularity of their music. In exchange, file-sharing music fans would be free to download whatever they like using whatever software works best for them. The more people share, the more money goes to rights-holders.

K-19 Disaster

Leadership is the process in which an individual influences the group of individuals to attain a common goal. Good leadership ensures that the goal is attained by mutual cooperation and cohesive behavior. An effective leader infuses a sense of positivist and efficiently directs others to reach the specified goal.The captain in the movie placed too much emphasis on power. A captain who attempts to control circumstances with power most often becomes authoritarian in his expression which can lead to dissent among subordinates. On the other hand, a captain who communicates effectively and collaborates with all team members is often respected and becomes more successful. In K- 10, the co-captain was an antithesis to the actual captain. The stark contrast between the two men's leadership styles conveyed a message about the relative effectiveness of each one.The crew embers were more loyal to the co-captain because he worked as a team to reach a goal Instead of ordering his subordinates ar ound. When disaster struck the crew was more apt to follow orders from the authority figure who worked with them as a team because they trusted him to care for their well-being. The only way to efficiently govern a large number of people is to instill a sense of trust. Those who abuse their power will not be trusted and thus will not become effective leaders. During war time people tend to experience and strong sense of nationalism.A citizen of Russia n the movie would feel patriotism for his own country starting at a very early age. It's a socio-cultural phenomenon that has been examined for ages. Many social psychologists believe that the patriotism is derived from the innate human desire to belong. Therefore, when Russian begins to experience military tensions during the onset of WWW, many citizens felt the need to defend and protect not only the country's honor, but their own as well. This explains why it was so hard for the captain to abandon the mission that his government had assigned him to.He felt that it was only right to risk his life defending his country and his own reputation, When technology advances rapidly, there is often a discrepancy between the capabilities of technology and the capabilities of the people in charge of said technology. Examples of such discrepancies can be found throughout all time periods. During the industrial revolution, for example, the technology allowed for mass production of goods, but the society of the time did not have regulations in place to successfully prepare workers for the hazardous conditions. As a result many lives were tragically lost.During WWW, Germany was beginning to use planes In the war. However, the first airplane had been flown Just over a decade earlier and the technology was still in its Infancy. Consequently, the average life span of a fighter pilot In WWW was only two weeks. When watching K-19 it is quite easy to understand why such a disaster could occur. The government at the time was despera te to have the cutting-edge technology, but did not have time to properly train those who would be working with the equipment. In today's society our technology Is once again advancing at a 1 OFF startling rate.As social medial becomes more prominent, minors are more expos to the adult world and the dangers that accompany it. We must be careful, as a society, to guard against technology being controlled by those who don't know how to properly utilize it. The movie was a powerful, reality based drama that causes viewers to consider the effects of nuclear power and the dangers of radiation. However, it also has underlying tones that speak to the very nature of humans. Leadership skills, nationalism, and technological innovation continue to be pressing issues in society throughout the ages.

Labor Day Essay Example

Labor Day Essay Example Labor Day Essay Labor Day Essay Name: Instructors: Course: Date: Labor Day Labor Day is celebrated on the first Monday of September every year. The labor movement in honor of the achievements of the American workers created a holiday. P.J. Maguire first suggested it. He states that a day should be set aside to honor those â€Å"who from rude nature have delved and carved all the grandeur we behold† (Dayton, 12). It was planned by the Central Labor Union and was first celebrated on Tuesday, September 5, 1882 in the city of New York. The labor force is vital to the improvement of living standards as well as the realization of economic goals of a country. Labor Day is celebrated as a show of gratitude to the numerous workers in America who dedicate themselves to provide services to the people. It is a national, yearly tribute to the workers whose role in the prosperity of the country is immense. Dayton, Connor. Labor Day. New York: Powerkids Press, 2012. Print.

Essay on Pride Predjudice Theme Story

Essay on Pride Predjudice Theme Story Essay on Pride Predjudice Theme Story Pride and Prejudice is the story of Mr. and Mrs. Bennet and their five unmarried daughters. They live in the estate of Longbourn in Hertfordshire, a rural district about thirty miles from London. The family is not rich. Their property is ‘entailed’ to pass to the nearest male heir in the family, in this case to Mr. Collins. The main concern of Mrs. Bennet’s life is to see that all her daughters are married, preferably to men with large fortunes. She sees an opportunity for her eldest daughter Jane when Mr. Bingley, occupies the nearby estate of Netherfield Park. In her excitement, she urges her husband to visit Mr. Bingley on the very first day of his arrival, before any of the other neighbors. Mr. Bennet complies to his wife’s request and visits Mr. Bingley, but withholds information about his visit from the family. At the next social gathering, Bingley brings along his sister, Caroline. But more importantly, he brings his closest friend, Mr. Darcy. Bingle y, who is charming and social, is immediately attracted to the modest and gentle Jane Bennet. Darcy, in contrast to Bingley, is proud, rude, and disagreeable. When Bingley suggests that Darcy dance with Elizabeth Bennet, he refuses and negatively comments on her looks. Elizabeth overhears the comment and develops a strong prejudice against Darcy. At the next ball, Darcy feels an attraction for Elizabeth and asks her for a dance. She refuses to dance with him, thereby avenging the earlier insults. Jane and Bingley continue to be attracted to one another. Caroline Bingley invites Jane to Netherfield for a visit. While at Netherfield, Jane falls ill and Elizabeth comes to look after her sister. While at Netherfield, Elizabeth is forced to confront Darcy. She approaches him with wit and sarcasm. Darcy is somehow charmed by Elizabeth’s frankness. During her short stay at Netherfield, Elizabeth realizes Caroline is very protecting of her family and it's social status, and doesn't l ike the Bennet’s vulgarity. Elizabeth concludes that Caroline’s friendship and cordiality towards Jane is only temporary. The male relative to whom the Longbourn estate is ‘entailed’, is Mr. Collins. Mr. Collins attempts to pay a visit to Longbourn with the intention of proposing marriage to one of the Bennet daughters. His pompous manners and his lame conversation disgust everyone, except Mrs. Bennet, who looks upon him as a prospective son-in-law. Mr. Collins is attracted to Jane, but Mrs. Bennet informs him that she is about to be engaged. He then turns his attention to Elizabeth and makes a ridiculous proposal of marriage to her. When Elizabeth rejects him, he proposes to her closest friend Charlotte, who, to everyone’s shock, accepts him. Mrs. Bennet is distressed by Elizabeth’s rejection of Mr. Collins because it is the one opportunity she has of keeping the Longbourn estate in the family. Bingley and his companions soon depart for Lond on. Both Bingley and Caroline write to Jane to say that they have closed Netherfield and have no plans of returning to it in the near future. Jane is very disappointed and feels frustration over Mr. Bingley. Elizabeth then finds a new attraction in Mr. Wickham and is foolishly and magnetically drawn to him. They have a friendly conversation in which she reveals her dislike of Mr. Darcy. Taking advantage of this information, Wickham makes up a story and tells Elizabeth that he has been cheated by Mr. Darcy. Elizabeth then feels pity for him and develops feelings for the soldier. Mrs. Gardiner, however, warns Elizabeth about Mr. Wickham, who soon marries Lydia one of the youngest of the Bennet daughters. At the invitation of the Gardiners, Jane goes to London for some rest and change of air. She hopes that she sees Bingley, even accidentally. Jane makes many attempts to get in touch with him, but Caroline does not even inform her brother about Jane’s presence in London. Jane is heart broken, but grows to accept her rejection. The central theme of the novel concerns

Guide to The Communist Manifesto

Guide to The Communist Manifesto The Communist Manifesto, originally known as The Manifesto of the Communist Party, was published by Karl Marx and Friedrich Engels in 1848, and is one of the most widely taught texts within sociology. The text was commissioned  by the Communist League in London and was originally published there, in German. While at the time it served as a political rally cry for the communist movement throughout Europe, it is so widely taught today because it offers a shrewd and early critique of capitalism and its social and cultural implications. For students of sociology, the text is a useful primer on Marxs critique of capitalism, which is presented in much more depth and detail in  Capital, Volumes 1-3. History The Communist Manifesto is the product of the joint development of ideas between Marx and Engels, and rooted in debates held by Communist League leaders in London; however, the final draft was written solely by Marx. The text became a significant political influence in Germany and led to Marx being expelled from the country, and his permanent move to London. It  was first published in English in 1850.   Despite its controversial reception in Germany and its pivotal role in Marxs life, the text was paid rather little attention until the 1870s, when Marx took a prominent role in the International Workingmens Association, and publicly supported the 1871 Paris commune and socialist movement. The text also captured wider attention thanks to its role in a treason trial held against German Social Democratic Party leaders. Marx and Engels revised and republished the text after it became more widely known, which resulted in the text that we know today. It has been popular and widely read around the world since the late 19th century, and continues to serve as a basis for critiques of capitalism, and as a call for social, economic, and political systems that are organized by equality and democracy, rather than exploitation. Introduction to the Manifesto A spectre is haunting Europe- the spectre of communism. Marx and Engels begin the manifesto by pointing out that those in power across Europe have identified communism as a threat, which they believe means that as a movement, it has the political potential to change the power structure and economic system that was currently in place (capitalism). They then state that the movement requires a manifesto and that this is what the text is meant to be. Part 1: Bourgeois and Proletarians The history of all hitherto existing society  is the history of class struggles. In Part 1 of the manifesto, Marx and Engels explain the evolution and functioning of the unequal and exploitative class structure that resulted from the rise of capitalism as an economic system. They explain that while political revolutions overturned the unequal hierarchies of feudalism, in their place sprung a new class system composed primarily of a bourgeoisie (owners of the means of production) and proletariat (wage workers). They wrote,  The modern bourgeois society that has sprouted from the ruins of feudal society has not done away with class antagonisms. It has but established new classes, new conditions of oppression, new forms of struggle in place of the old ones. Marx and Engels explain that the bourgeoisie have done this not just by control of industry, or the economic engine of society, but also because those within this class seized state power by creating and controlling the post-feudal political system. Consequently, they explain, the state (or, government) reflects the world views and interests of the bourgeoisie classthe wealthy and powerful minorityand not those of the proletariat, who are actually the majority of society. Next Marx and Engels explain the cruel, exploitative reality of what happens when workers are forced to compete with each other and sell their labor to the owners of capital. An important consequence, the offer, is the stripping away of other kinds of social ties that used to bind people together in society. Within what has come to be known as a cash nexus, workers are mere commoditiesexpendable, and easily replaceable. They go on to explain that because capitalism is premised on growth, the system is gobbling up all people and societies around the world. As the system grows, expands, and evolves its methods and relations of production, ownership, and thus wealth and power are increasingly centralized within it. (The global scale of todays capitalist economy and the extreme concentration of ownership and wealth among the global elite show us that the 19th-century observations of Marx and Engels were on point.) However, Marx and Engels wrote, the system itself is designed for failure. Because as it grows and ownership and wealth concentrate, the exploitative conditions of wage laborers only worsen over time, and these sew the seeds of revolt. They observe that, in fact, that revolt is already fomenting; the rise of the Communist party is a sign of this. Marx and Engels conclude this section with this proclamation: What the bourgeoisie therefore produces, above all, are its own grave-diggers. Its fall and the victory of the proletariat are equally inevitable. It is this section of the text that is considered the main body of the Manifesto, and is most often quoted, and taught as an abridged version to students. The following sections are less well-known. Part 2: Proletarians and Communists In place of the old bourgeois society, with its classes and class antagonisms, we shall have an association, in which the free development of each is the condition for the free development of all. In this section, Marx and Engels explain what it is exactly that the Communist Party wants for society. They begin by pointing out that the Communist Party is not a political workers party like any other because it does not represent a particular faction of workers. Rather, it represents the interests of workers (the proletariat) as a whole. These interests are shaped by the class antagonisms created by capitalism and the rule of the bourgeoisie and transcend national borders. They explain, quite plainly, that the Communist Party seeks to turn  the proletariat into a cohesive class with clear and unified class interests, to overthrow the rule of the bourgeoisie, and to seize and redistribute political power. The crux of doing this, Marx and Engels explain, is the abolition of private property, which is the manifest of capital, and the essence of wealth hoarding. Marx and Engels acknowledge that this proposition is met with scorn and derision on the part of the bourgeoisie. To this, they reply: You are horrified at our intending to do away with private property. But in your existing society, private property is already done away with for nine-tenths of the population; its existence for the few is solely due to its non-existence in the hands of those nine-tenths. You reproach us, therefore, with intending to do away with a form of property, the necessary condition for whose existence is the non-existence of any property for the immense majority of society. In other words, clinging to the importance and necessity of private property only benefits the bourgeoisie in a capitalist society. Everyone else has little to no access to it and suffers under its reign. If you question the validity of this claim in todays context, just consider the vastly unequal distribution of wealth in the U.S., and the mountain of consumer, housing, and educational debt that buries most of the population. Then, Marx and Engels state the ten goals of the Communist Party: Abolition of property in land and application of all rents of land to public purposes.A heavy progressive or graduated income tax.Abolition of all rights of inheritance.Confiscation of the property of all emigrants and rebels.Centralization of credit in the hands of the state, by means of a national bank with State capital and an exclusive monopoly.Centralization of the means of communication and transport in the hands of the State.Extension of factories and instruments of production owned by the State; the bringing into cultivation of waste-lands, and the improvement of the soil generally in accordance with a common plan.Equal liability of all to work. Establishment of industrial armies, especially for agriculture.Combination of agriculture with manufacturing industries; gradual abolition of all the distinction between town and country by a more equable distribution of the  populace over the country.Free education for all children in public schools. Abolition of children’s factory labor in its present form. Combination of education with industrial production, etc. While some of these might seem controversial and troubling, consider that some of them have and do exist in a variety of nations around the world. Part 3: Socialist and Communist Literature In Part 3 Marx and Engels present an overview of three different types of socialist literature, or critiques of the bourgeoisie, that existed at their time, in order to provide context for the Manifesto. These include reactionary socialism, conservative or bourgeois socialism, and critical-utopian socialism or communism. They explain that the first type is either backward-looking and seeking to return to some kind of feudal structure, or that seeks to really preserve conditions as they are and is actually opposed to the goals of the Communist Party. The second, conservative or bourgeois socialism, is the product of  members of the bourgeoisie savvy enough to know that one must address some grievances of the proletariat in order to maintain the system as it is. Marx and Engels note that economists, philanthropists, humanitarians, those that run charities, and many other do-gooders espouse and produce this particular ideology, which seeks to make minor adjustments to the system rathe r than change it (for a contemporary take on this, see the differing implications of a Sanders versus a Clinton presidency). The third type is concerned with  offering real critiques of the class structure and social structure, and a vision of what could be, but suggests that the goal should be to create new and separate societies rather than fight to reform the existing one, so it too is opposed to a collective struggle by the proletariat. Part 4:  Position of the Communists in Relation to the  Various Existing Opposition Parties In the final section Marx and Engels point out that the Communist Party supports all revolutionary movements that challenge the existing social and political order, and close the Manifesto with a call for unity among the proletariat with their famous rally cry, Working men of all countries, unite!

Defence, Pride and Prejudice Essay Example | Topics and Well Written Essays - 500 words

Defence, Pride and Prejudice - Essay Example As for objectivity, there is no way we can verify the claims made by Augustus in Res Gestae. But common sense tells us that some facts could have been suppressed or exaggerated. In the trial of Socrates, we believe it was motivated by spite and prejudice (of those to whom Socrates’ teachings caused embarrassment) and, therefore, our sympathies are with the great philosopher. Still, the fact remains that Apology is in first person narrative which means it is one-sided and so there is an equal possibility for lack of objectivity, though the degree may differ. However, there is little scope for suppression of facts or exaggeration in Socrates’ statement because it is primarily based on reasoning unlike Res Gestae which is a self-satisfied account of ‘facts’ or things done.Res Gestae states that Augustus, after the civil wars, transferred the republic ‘from his power to the power of the senate and the people’. It sounds great to hear about a ruler who let the spirit of democracy flourish thousands of years ago. But history tells us that, contrary to modern day republics, the senate and the people, as such, were never allowed to be binding on the king and his decisions. Res Gestae does not tell us that tribunes could veto laws passed by the senate and Augustus was ‘tribune-for-life’. It was therefore a masqueraded republic. The hypocrisy of the so-called ‘principate’ is evident in Augustus, in 27 B.C., being voted a large military command for a period of ten years and in the institution of ‘impeium maius’.

Structural members in concrete bridges and highway Essay

Structural members in concrete bridges and highway - Essay Example CORE MEMBERS There are many elements that have to be understood before the structure of any structure like a bridge or a whole highway can be comprehended. Engineering laws are always based on key elements. Some key elements of both the structures will be explained quite extensively along with the types of bridges which have these elements present in them. Some of those key elements are: Beam This element in the bridge is the horizontal structure which withstands vertical weight known as bending for example gravitational load or load due to wind. Beams in bridges can either be made of reinforced concrete, steel or wood. Any type of beam can be categorized by their profiling. Some of the examples of beams are I-Beam, T-Beam and box beam. Column Column is known to be the vertical structure designed for carrying lateral weight. It is one of the most important components of the bridge. This is the first portion of any bridge that has to be built. The horizontal weights like slabs and bea ms are placed once the column has been constructed. Foundation Foundation is the lowest layer of support of a structure. It can either be deep or shallow. This is usually the first part of the design when the project is being planned. The phases or implementation will be later discussed in the report. The foundation is the component of the structure which holds the columns on which the beams lie. Therefore it can easily be said that a solid foundation, which has holding capability is the one which is best for any kind of bridge, otherwise the structure can be massively damaged causing human and financial loss. Types of Bridges There are various types of bridges that have been developed over the period of time, when the human brain has... It is evident from the study that there are many elements that have to be understood before the structure of any structure like a bridge or a whole highway can be comprehended. Engineering laws are always based on key elements. Some key elements of both the structures will be explained quite extensively along with the types of bridges which have these elements present in them. Various steps are under-taken for the completion of both, the bridge and a highway alike. A construction company has to set up its goals and designs even before the first brick is laid. The construction steps are explained in detail in this section of the paper. This paper will render light over some of the examples of successful as well as some disastrous bridge/highway designs. This report can be concluded by describing an analogy in which a bridge/highway is created between two factious towns. The amount of length saved to the community of the two people can be somehow converted in the time saved travelling in their cars on the route when the bridge was not present. It can be safely said that more time of their lives will be saved by this then their actual lives. Such an impact has been brought upon by this simple everyday invention, about which we don’t think about while travelling. A road/highway/bridge has evolved the way man travels. Long journeys which were earlier not possible without aircrafts or boats are now been travelled due the connection made by this smart structural invention by mankind.

Case Evaluation Essay Example | Topics and Well Written Essays - 1750 words

Case Evaluation - Essay Example Henceforth, Siemens Company and its challengers may at times have the temptation of using any possible means in persuading decision makers in signing contracts with their companies. Due to this persuasion, the company gets tempted to offer financial incentives that are not legal in closing the signed contracts (Stanwick, 2014). The illegal method used by Siemens Company to obtain orders from their customers was revealed when it was stated that six executives in Siemens Company had been detained for the actions they did. These actions related to offering bribes to German and different customers in the telecommunication industry. Additionally, these executives were blamed of stealing money from Siemens Company to pay for the offered bribes. Thomson Ganswindt was among the arrested executives. He was heading the telecommunications equipment unit in the company. The assessed bribes amounted to 200 million euros and supposedly incorporated using bribes to get the security systems contract. This was at the 2004 Olympic Games held in Greece (Stanwick, 2014). The concerns began after Michael Kutschenreuter, a senior executive in Siemens Company, stated that he received a very worrying phone call in the beginning of 2004 from Beit Al Etisalat. Al Etisalat was an employee of a consulting firm in Saudi that was Siemens business partner. Al Etisalat claimed that he be compensated 910 million dollars as commission payments by Siemens Company for the role he played in obtaining telecommunication contracts in Saudi Arabia. He went on to threaten the company that he would go to the United States Securities and Exchange with proof of bribes Siemens offered connected to the contracts if Siemens Company did not compensate him the commission payments (Stanwick, 2014). Due to this threat, Michael informed the company’s superiors, including the then present CEO Heinrich von Pierer and future CEO of the company Klaus

Discuss how public sector organisations may respond to change as a Essay

Discuss how public sector organisations may respond to change as a result of changes to legislation and regulation - Essay Example They provide essential social services that cannot be provided by the private sector on grounds such as high capital investment. They also provide services that have little or no profit at all and are thereby shunned by the private sector. Normally public corporations are established on statutory grounds by the parliament. It therefore means that these corporations will normally have a lot of influence from the workings of the government. Public sector corporations are normally instituted to provide services such as health, education, social insurance and transport. Most of their management is comprises of political appointees. Legislations are laws or rules that are enacted by the government through the legislature or parliament. Such enactments are usually made relating to various issues that affect the masses. Public sector organizations are normally expected to respond to any new legislation that affects them. Much legislation has been enacted that affect the management of the pu blic corporations. Legislations affecting the public sector are customarily enacted out of the need to protect the general public from exploitation from these corporations. Exploitations have always been realized from these public corporations inasmuch as they are directly controlled by the government. It arises from the fact that some figures in government are always interested in the affairs of these corporations. As a result they end up influencing their operations most often for their own gains. Response to changes Public corporations are always expected to respond to legislations that are enacted to improve their operations or to bring sanity in the manner in which their operations are run. Most of these corporations were instituted several years back but unfortunately, many years later it is realized that their service delivery is usually below expectations. A comparison of some of these corporations with privately managed enterprises will reveal a lot of striking differences. It therefore begs the analysis of the reasons as to what might be wrong in the affairs of these corporations. It has always been realized that the manner in which some corporations respond to very pertinent legislations is always very slow and wanting. For instance, legislations relating to global warming , dumping of toxins into water bodies and other emerging issues have always raised a lot of questions regarding the slow pace of compliance from these corporations. Just like public enterprises, most of these corporations fall under specific regulatory authorities that are expected to regulate their operations. It has also been realized that that regulating these corporations is not easy as it may seem. Given the nature of their management, their organizational structures and the fact that they are not profit motivated, it makes it very difficult for the regulatory authorities to make them comply with the regulations expected. Most public sector organizations have very complex org anization structures in operation. Decision making in such an organization is not easy. As such it has always been difficult to implement some proposed regulations that are created for a specific purpose. Moreover managing employees in many public corporations is a daunting task. Most of them are protected by their terms of engagement which

Interviews on Reform Assignment Example | Topics and Well Written Essays - 2000 words

Interviews on Reform - Assignment Example This type of community is comprised of mainly adults. Public schools provide an opportunity to meet and interact at different negotiation points. It becomes easy for students to interact with individuals from diverse values and backgrounds. Public schools comprise of students with a diverse range of abilities and disabilities. The backgrounds provide individuals from different cultural, ethnic and socioeconomic background. The diverse environment exposes the students to different levels of interpersonal and communication issues. The numbers of students in a public school provide students with a different environment as compared to that provided by home schools and private schools. Students are able to engage in team projects and competitive sports with a diverse platform (Turnbull, Turnbull, & Wehmeyer, 2008). What are the major problems in need of reform or improvement? The public schools are faced with challenges that require reforms. Schools face challenges ranging from the struct ure, curriculum, the school’s mission, experiences and specifically. The first problem faced by American public schools is the school size. 70% of schools in America have an access of up to 2500 students. This compromises the quality of education received by students. The ration of students to teachers is as large as 100 students per teacher. Minimized attention comes with high dropout rates due to the overcrowding problems. The issue of the public curricula also comes as a concern for the reformists. The structure of the public schools curricula fails to impart on the academic and knowledge skills. To improve the structure, the schools require improvement on the subjects provided, including the period taken to complete the curriculum. The missions of schools have hindered the progress of school improvements. The mission of public school is to prepare the students to adopt into the high school curriculum. Interdisciplinary units and lesson plans increase in complexity on an a nnual basis. In relation to curricular demands, student diversity and accountability, the lesson plan and activities are bound to change. Working on Social Studies, Technology, Art and Drama curriculums indicate a better diversity for the students. The curriculum demands for new state frameworks that require continual change. Standardization tests set through district policies dictate the instruction methods used and how they address the needs of English language learners. Linguistics of English come with a diverse implication in designing programs intended to range the learners according to their abilities. The importance of targeting a certain population while outlaying the lesson plan depends on various aspects. The rationale on interdisciplinary aspects while setting a lesson plan needs to consider different aspect including the language and culture, learning styles, active participation, learning strategies in specific areas of the lesson, development of thinking skills and tra nsfer process, student empowerment and parental involvement (Turnbull, Turnbull, & Wehmeyer, 2008). Recommendations: What do you think will â€Å"fix† the problem? Learning styles Learning styles involve using sheltered language while implementing learning strategies. It allows students to develop the subject matters through English language. Through using different learning styles, teachers apply comprehensive lessons aiding in the

Generation Gap Essay Example | Topics and Well Written Essays - 750 words

Generation Gap - Essay Example One can easily identify that the theme of socio-cultural alienation faced by elderly citizens is still a burning issue in the mainstream society. Thesis statement: In the short story A Rose for Emily by William Faulkner, the narrator’s point of view, symbolism and irony reveal/ support/ emphasize the theme of alienation in the mainstream society. In this essay, the literary elements like the narrator’s point of view, symbolism and irony are made use to prove that the same reveal/ support/ emphasize the short story’s theme. The narrator’s point of view In the short story, the narrator’s point of view is linked with the new generation’s attitude towards Emily Grierson. From a different angle of view, the writer makes use of the narrator as a medium to expose the attitude of the new generation towards elderly citizens, especially the womenfolk. One can see that the narrator does not hesitate to attend Emily’s funeral and this proves the n arrator’s empathetic attitude towards the marginalized individuals in the society. At the same time, the narrator does not try to reveal his sympathetic attitude towards Emily Grierson. Instead, the narrator leads the readers towards the circumstances which forced Emily to lead a secluded life. The writer makes use of a fictional county to unmask the tragic story. Within this context, narrator’s point of view is important because the same can be extended to a wider context. For instance, the problem of socio-cultural exclusion faced by Emily is applicable to the wider context of elderly citizens in the society. As pointed out, the narrator’s role in the story is not to produce sympathy towards Emily. Instead, the narrator’s point of view is symbolic of the wide gap between the old and the new generation. In the short story, the narrator symbolizes the new generation in the society, and the writer makes use of the narrator to expose the difference in attit ude towards change. In short, the narrator’s point of view mirrors the writer’s point of view, i.e. empathy towards the marginalized individuals in the society. Symbolism The problems faced by Emily Grierson and her father Mr. Grierson, are symbolic of problems faced by the elderly citizens who are not ready to change. Shmoop stated that, â€Å"This Faulkner classic shows us the process by which human beings become isolated by their families, by their community, by tradition, by law, by the past, and by their own actions and choices† (7). For instance, Mr. Grierson considered that the youngsters in the society are not suitable for his daughter. This negative attitude eventually led his daughter to face alienation and socio-cultural exclusion in the society. Besides, Emily was deeply influenced by her father’s character and she refused to marry. Later, those who lived in Jefferson began to consider that Emily will find out a suitable youngster. But she did not try to do so because she was so proud about her ancestral lineage. In the end, Emily was forced to face social and cultural exclusion because she was not ready to change. Besides, Emily’s housekeeper/servant was her one and only link with the society. One can see that Emily’s pathetic life and her tragic end are symbolic of the aftereffect of her negative attitude towards change. From a different angle of view, Emily’s father did not allow her to marry and this accelerated her socio-cultural exclusion. On the other side, Emily did not try to be within the mainstream society and was forced to face the consequences. She did not try to develop cordial relationship with her neighbors. Instead, she depended upon her servant and this attitude forced her to shrink herself into her private circle. When she became older, no one other than her servant was there to help her.

Interviews on Reform Assignment Example | Topics and Well Written Essays - 2000 words

Interviews on Reform - Assignment Example This type of community is comprised of mainly adults. Public schools provide an opportunity to meet and interact at different negotiation points. It becomes easy for students to interact with individuals from diverse values and backgrounds. Public schools comprise of students with a diverse range of abilities and disabilities. The backgrounds provide individuals from different cultural, ethnic and socioeconomic background. The diverse environment exposes the students to different levels of interpersonal and communication issues. The numbers of students in a public school provide students with a different environment as compared to that provided by home schools and private schools. Students are able to engage in team projects and competitive sports with a diverse platform (Turnbull, Turnbull, & Wehmeyer, 2008). What are the major problems in need of reform or improvement? The public schools are faced with challenges that require reforms. Schools face challenges ranging from the struct ure, curriculum, the school’s mission, experiences and specifically. The first problem faced by American public schools is the school size. 70% of schools in America have an access of up to 2500 students. This compromises the quality of education received by students. The ration of students to teachers is as large as 100 students per teacher. Minimized attention comes with high dropout rates due to the overcrowding problems. The issue of the public curricula also comes as a concern for the reformists. The structure of the public schools curricula fails to impart on the academic and knowledge skills. To improve the structure, the schools require improvement on the subjects provided, including the period taken to complete the curriculum. The missions of schools have hindered the progress of school improvements. The mission of public school is to prepare the students to adopt into the high school curriculum. Interdisciplinary units and lesson plans increase in complexity on an a nnual basis. In relation to curricular demands, student diversity and accountability, the lesson plan and activities are bound to change. Working on Social Studies, Technology, Art and Drama curriculums indicate a better diversity for the students. The curriculum demands for new state frameworks that require continual change. Standardization tests set through district policies dictate the instruction methods used and how they address the needs of English language learners. Linguistics of English come with a diverse implication in designing programs intended to range the learners according to their abilities. The importance of targeting a certain population while outlaying the lesson plan depends on various aspects. The rationale on interdisciplinary aspects while setting a lesson plan needs to consider different aspect including the language and culture, learning styles, active participation, learning strategies in specific areas of the lesson, development of thinking skills and tra nsfer process, student empowerment and parental involvement (Turnbull, Turnbull, & Wehmeyer, 2008). Recommendations: What do you think will â€Å"fix† the problem? Learning styles Learning styles involve using sheltered language while implementing learning strategies. It allows students to develop the subject matters through English language. Through using different learning styles, teachers apply comprehensive lessons aiding in the

Gender Stereotyping is Unfairness Essay Example for Free

Gender Stereotyping is Unfairness Essay The roles the society allocates to its members according to sex are the root course of how people relate to each other in the society. Those who don’t fit into predetermined gender roles face social sanctions. This paper reveals that the gender stereotyping in the society are unfair and amount to the abuse of the rights of those who don’t conform to the norms. The essay takes into consideration the origins of the social standards and experiences of life which are used on women. Devor’s essay reveals how gender stereotypes give rise to female to male transsexuals. This paper shall also analyze Alice Munro’s book, Boys and Girls that provides a literary example that complements Denvor’s scientific explanation. The paper will also be complemented by various views by feminists. Devor states that since time immemorial women were taken as less important than men. Women were not much recorded in writings on the society as men were. A close look at the writings of ancient religions e.g. Greek, Judaism, and the dark ages reveals this.   Cultures in the past have had individuals with mixed gender, who are based on polytheistic beliefs. In America this was identified in the 16th century. This was not written about as most of the writings focused on men thought to have female traits for social ridicule. In the twentieth century women became empowered and became workers due to the industrial age. In this time women who dressed like men were branded the title lesbians. This name later was used to refer to transgender women in the culture. Efforts to discover the trait of transgender individuals have been undertaken in the recent past however this phenomenon has been present in societies always. This phenomenon for long has been suppressed. Modern science has discovered the biological differences as well as psychological and social influences between men and women, and now the study of transsexuals can be studied and medication given. Devor argues that the context of culture is very important in understanding sex and gender. He states that the structure of the society determines the lives of individuals. Gender is a result of cultural influence on the members of the society. The relations in the society that enhance gender are rules of relations in the society. He observes that the society is responsible for its transgender individuals. They represent the mean of what the society has forced in the diverse human life (Dover 37). His argument is that the home is the place where the female to male transsexuals are bred. Most of the theories on transgender individuals put the responsibility of the situation on parents. For instance fathers are seen to impart the message that women are lesser to their daughters. Also mothers who appear victimized and dependent on the husband make their daughters attracted to be like men. This leads to a personality split, which is not illness, as some people believe. In the developmental years at the stage of early development those children with male to female traits do not identify with female relations in their childhood years.   The children in this stage identify themselves with masculine figures and preferred male company. In the final analysis there seems, on the part of these girls a desire to escape the problems of their gender. Transsexuals, therefore, are the result of intense socialization.   The process starts at early childhood and continues to build up in adolescence and even in adult life. She argues that people should be left to live and fully express the gender roles they choose. Most transsexuals don’t undergo the surgery to change their genitalia so they face continuing limitations in society. In spite of this they are able to achieve their goals in life.   As stated in the introduction, Alice Munro’s book, Boys and Girls supports Devor’s idea of sex and gender. The story of the girl narrator sheds light on Devor’s argument about gender stereotyping in the society. In the book Munro depicts challenges and successes in the process of passage from childhood to adulthood. Her narrators are a girl and a boy, who are siblings. She tackles the theme of sex role stereotype which is full of unfairness. The protagonist undergoes exacting and extreme initialization into adulthood like her younger brother. The author suggests that stereotyping of gender and loss of innocence are initiation into adulthood, and are extremely influential to individual children. Munro through the choice of a female protagonist who is without a name and therefore undignified lays he ground for showcasing the stereotype. The younger brother of the protagonist is named laid for lord, and by virtue of the name he is to become a dignified master of others. The grandmother of the children comes calling and gives the narrator advice on the rules of conduct for a girl. For instance girls keep their legs together when they are seated. The narrator faces a disliking of the roles that she is being couched to take; those of her mother. She rather likes her father’s roles.

Human Trafficking And Sexual Exploitation Criminology Essay

Human Trafficking And Sexual Exploitation Criminology Essay When I was in Holland in August 1999, I was curious to see Amsterdams Red Light District for myself. Then it was the only place I knew in the world where prostitution was legal and have heard that women pose in window inviting customers in. I was with a friend and she started taking pictures of the women in the windows. When my friend took another picture when we were in the middle of the walkway, a prostitute came from behind her window, descendent on us furiously, grabbed the camera and violently removed the film from the camera. We were stunned, apologised profusely and hurriedly tried to make our way. A man came from somewhere and explained that taking pictures were prohibited. At that time I, like most people, have not heard about human trafficking. The issue of human trafficking has received considerable attention in the last ten years from researchers, non-governmental organisations, governments and international bodies the world over. Like most countries, South Africa too is a signatory to the Protocol to Prevent, Suppress and Punish Trafficking in Persons (generally referred to as the Palermo Protocol). We formally consented to the Palermo Protocol in December 2003. Thus, as a nation we are obligated to ensure that our internal laws address the issue of human trafficking. Human trafficking has been called a heinous, monstrous,  [1]  crime against humanity  [2]  . It has also been coined modern-day slavery. Human trafficking can take the form of sexual exploitation, labour exploitation, slavery, illegal adoptions, removal of organs and other body parts, for conveying drugs nationally and internationally. However, as much as the issue has been discussed and debated, it has contributed to the hype surrounding FIFA World Cup 2010 and how human trafficking for sexual exploitative purposes will increase [even though there is no research to draw from] during the soccer world cup. This led to discussions and public outcry on whether or not to legalise prostitution; and whether South Africa need a specific legislation dealing with human trafficking. When I wrote my proposal, I considered several key focus areas. It soon became apparent that due to limitations such as time and length of paper, that I needed to reduce the key focus areas. Consequently I have decided for this paper, to focus on definition of trafficking the causes of trafficking explore prostitution and whether or not it should be legalised explore legislative developments pertaining to trafficking protective measures available to victims of trafficking. Research Methodology The research methodology consisted majorly of in-depth desktop research on trafficking of adults, and not people under the age of 18 years, for purposes of sexual exploitation. Much has been written about human trafficking, but it is still difficult to find reliable studies thereof. Some of these factors include deficiencies in methodology; defining trafficking; high levels of mobility; and the underground nature of trafficking; links to organised crime; victims fears and unwillingness to participate in research; and potential dangers to researchers.  [3]   Gould and Fick wrote that they failed to find a single prostitute who said she was being forced by unscrupulous pimps to sell sex against her will.  [4]  This does not mean that there are no victims of sex trafficking in and around Cape Town. I thought I could draw on an article written by Immelback Interviewing a Victim of Human Trafficking.  [5]  Upon closer look I realised that she did not interview a victim of human trafficking, but interviewed the Victim Assistance team who works with victims of trafficking. As it is difficult  [6]  to set up interviews with victims of sex trafficking due to a host of reasons, including personal, I abandoned interviewing them for this paper due to my limitations. I decided to instead research movies and or documentaries that depict human trafficking for purposes of sexual exploitation. I will reflect on one of such movies, namely the movie Taken where Liam Neeson plays the role of a concerned and heroic father, whose daughter and friend have been trafficked for purposes of sexual exploitation, and he lengths he went to rescue them. Throughout the paper I will try to avoid preferring to victims in the feminine form, even if the majority of the persons who victims of sex trafficking are women. This is to prevent sexism in my writing.  [7]   A Review Of The Literature Defining Human Trafficking One of most debated issues of human trafficking is the definition of human trafficking. Article 3 of the Protocol to Prevent, Suppress and Punish Trafficking in Persons (Palermo Procol) defines trafficking as: trafficking in persons shall mean the recruitment, transportation, transfer, harbouring or receipt of persons by means of the threat or use of force or other forms of coercion, of abduction, of fraud, of deception, of the abuse of power or of a position of vulnerability or of the giving or receiving of payments or benefits to achieve the consent of a person having control over another person for the purpose of exploitation. Exploitation shall include at a minimum the exploitation of the prostitution of others or other forms of sexual exploitation, forced labour of services, slavery or practices similar to slavery, servitude or the removal of organs; the consent of a victim of trafficking in persons to the intended exploitation set forth in subparagraph (a) of this Article shall be irrelevant where any of the means set out in paragraph (a) have been used; Most countries have taken the definition verbatim when they drafted their anti-trafficking laws. Kara  [8]  undertook several research trips to investigate human trafficking on four continents. He questions whether the definition is subparagraph 3(a) includes exploitation.  [9]  He opines that the wording only speaks to the movement portion of the chain, which explains why anti-trafficking law focus on movement more than exploitation  [10]  . He argues that trafficking is not about movement, it is about slavery.  [11]  He writes that current anti-trafficking efforts primary seek to crack down on modern-day slave traders, resulting in little more than adjustments in routes, larger bribes to border guards, and the procurement of false travel documents.  [12]  He suggests that a much clearer understanding of sex trafficking is required- wherein the movement and the purpose of the movement are disaggregated as criminal acts- to achieve greater abolitionist effectivene ss.  [13]  He suggests two definitions which could be used to eradicate sex trafficking, namely Slave trading- process of acquiring, recruiting, harbouring, receiving, or transporting an individual, through any means and for any distance, into a condition of slavery or slave-like exploitation.  [14]   Slavery- process of coercing labour or other services from a captive individual, through any means, including exploitation of bodies or body parts. He argues breaking the definition into different parts should be effective when formulating efforts to combat the crime of sex trafficking, and that confusion over what trafficking is results in blunted purpose, diffracted focus and exclusion of important components of trafficking-related crimes.  [15]   The Human Sciences Research Council (HSRC) Tsireledzani 2010 report dealt with the problems of trafficking. They have expanded the definition of trafficking to include trafficking within national borders; forced marriages; child labour; impregnation of a female against her will for the purposes of selling her child when born; and trafficking of body parts.  [16]   In South Africa Gould and Fick created a stir with their controversial research on sex trafficking in Cape Town. They argue that the definition is too broad  [17]  and that there seem to no agreement on what could be considered as exploitation  [18]  . Another criticism of the definition by Gould and Fick is the issue of consent of the victim being irrelevant.  [19]  They opine that by ignoring the fact that the victim consented to be trafficked, is to ignore the specific needs of the victim, especially the victim who do not wish to return home to the same circumstances that led the victim to be trafficked in the first place.  [20]  Gould and Fick conclude that critiques would suggest that the term trafficking may not be a useful lens through which to consider issues of exploitation and abuse in the sex work industry.  [21]   Sex trafficking and prostitution are often perceived as two sides of the same coin. However, it is not. It is important to differentiate between sex trafficking and prostitution. With sex trafficking the person is being exploited to perform sex work; the person is not directly paid, but money might be sent to the victims family; the person is compelled to do the sex work; the person is not in a position to stop working unless the person escape; the person does not have autonomy of movement- it is restricted; the person is not able to negotiate a rate, fee, hours; the person is not able to negotiate the sexual acts; the person is not able to negotiate safe sexual practices; With prostitution, however, the sex worker is paid directly (if the person is based at a brothel, money might be paid either to person self or the person managing the brothel); can decide to stop whenever; choose to do the sex work due personal circumstances; can negotiate sexual acts; can negotiate safe sexual practices; can negotiate the rate, fee and hours; is able to enjoy freedom of movement; can still enjoy life as a person (fall in love, have babies, etc) Why does sex trafficking occur? The root causes of trafficking are complex, the vulnerability resulting from poverty is a major contributor.  [22]  The HSRC list pull factors such as economic inequality, conflicts, adoption trade, the use of organs or body parts in rituals.  [23]  They list poverty and deprivation, persistent unemployment, gender discrimination, lack of information and education, harmful socio-cultural practices and lack of legislative and policy protection as push factors.  [24]  They also cite issues such as disempowerment, social exclusion, and economic vulnerability- the result of policies and practices- marginalise entire groups of people, rendering them vulnerable to being trafficked.  [25]   The general perception is that only men are traffickers. Women are also involved in human trafficking, not only as victims, but also as traffickers.  [26]  It has been found that traffickers are also women, as mainly Mozambican women in partnership with their compatriots and South African men who transport trafficked victims from Maputo to Johannesburg or Durban.  [27]  Victims trafficked to Europe are recruited by Malawian businesswomen.  [28]   Kara argues that sex trafficking occurs because it is a lucrative business.  [29]  He equates sex trafficking with drug trafficking.  [30]  He states that drug trafficking generate greater dollar revenues, but [sex] trafficking is more profitable.  [31]  Unlike a drug, a [human] does not have to be grown, cultivated, distilled, or packaged.  [32]  Unlike a drug, a [human] can be used by the customer again and again.  [33]  34It generates profits through the vulgar and wanton destruction of lives.  [35]   Kara describes several five ways how sex slaves are acquired, namely deceit, sale by family, abduction, seduction or romance, or recruitment by former sex slaves.  [36]  Each of these ways will be briefly illustrated below. Deceit Deceit involves false job offers, travel, or other income-generating opportunity, false marriage offers (mail order brides).  [37]  He opine that in countries where marriage is the only way for a female to secure social acceptance, basic rights, and avoid a lifetime of persecution, false marriage offers are effective ways to acquire sex slaves.  [38]  People living in refugee camps are very susceptible to sex trafficking as they are often not allowed to leave the camp to seek employment.  [39]  Traffickers visiting refugee camps with job offers are usually very successful in getting people.  [40]   Sale by or involvement of family members I first encountered family involvement when I read a news article.  [41]  The article said that police had rescued a seventeen year old teenage girl from Klerksdorp from a brothel in Table View.  [42]  It alleged that the mother of the teenager knew the brothel owner and have promised her daughter that she will be working as a child minder.  [43]  Did the mother knew that her daughter will be expected to do sex work? Poverty, desperation and displacement lead many families to sell a family member into slavery, and that they seldom are sold for greed.  [44]  Parents are often forced by poverty and ignorance to enlist their children, hoping to benefit from their wages and sustain the deteriorating family economic situation.  [45]   Abduction People are rarely abducted into sex trafficking, because it is difficult to transport person without drawing attention. People are also abducted in and from conflict zones and forced to serve as sex slaves to rebel commanders or are sold as slaves.  [46]   Kara says that not only is the abducted victim unwilling to travel, but also will to escape at any opportunity.  [47]  If a person is abducted into sex trafficking, the person is usually also drugged to facilitate easier movement. Seduction or Romance Victims are also lured into trafficking by promises of love and marriage. Traffickers would find attractive and vulnerable people (more often girls), offering them love and marriage, treating them to expensive gifts, seducing them to migrate to a rich country where they can build a life together.  [48]  Once the victim reaches the other country, they are forced into sexual slavery.  [49]   Recruitment by former slaves This too might be difficult to comprehend, but people are also recruited by other victims of trafficking.  [50]  Sex slaves employ adaptive mechanisms to survive their ordeals, including drug and alcohol abuse and the morose acceptance that their fate.  [51]  In East Africa, Ugandan women working as prostitutes in the Gulf States lure young girls from their country because they are usually preferred by male clients.  [52]   Lastly, Kara controversially opines that the United States is more responsible than any other nation for the inimical accretion in human exploitation, trafficking, slavery since the fall of the Berlin Wall. He notes that through the International Monetary Fund and other institutions, the US government rapidly imposed its particular brand of unfettered market economics upon the developing world, unleashing catastrophic increases in poverty, social upheaval, mass migration and lawlessness.  [53]   Should sex work be legalised? When dealing with the issue of sexual exploitation, the question is often raised whether or not to legalised or to decriminalise prostitution. Kara too addresses this in his research. He writes that the argument that prostitution be legalised rests on the premise that women have a right to control their bodies.  [54]  He indicates that legalisation would mean that prostitutes could enjoy the same benefits that other occupations do.  [55]  Legalisation would also allow for state monitoring to ensure that prostitutes were less subject to violence and exploitation and that it would make it more difficult to traffic people for sexual exploitation because victims would have rights under the law, and that criminalising prostitution leads to increased victimisation of trafficking victims.  [56]  Those who are against legalising prostitution argue that purchasing sex and operating sex establishments should be criminalised because prostitution can never be a choice and that the pr ofession is inherently based on a system of male sexual dominance, appropriating the female body for pleasure and reinforcing the subordination and sexual objectification of women.  [57]  He further writes that legalisation gives protection to brothel owners to purchase trafficking victims and inflict greater exploitation behind closed, but legal doors.  [58]  He writes that only governments, organized crime, and pimps benefit from legalisation and women and children suffer state-sanctioned rape and slavery.  [59]  He does not elaborate on how governments benefit from legalising prostitution. Kara investigated two countries, the Netherlands and Sweden legislation regarding prostitution. The Netherlands have legalised prostitution and Sweden has criminalised it. Even though prostitution was legal in Amsterdam, brothels were not until October 2000, when the ban was lifted to enable the Dutch government to exercise more control over the sex industry and counter abuses.  [60]  Brothel owners are issued licences if they are in compliance with certain standards, including panic buttons in work areas, hot and cold running water, and free condoms.  [61]   National Legislative framework Since South Africa signed and ratified the Palermo Protocol, we had to ensure that we enact legislation in accordance. The US Office to Monitor and Combat Trafficking in Persons 2010 report ranked South Africa as Tier 2. This means that our government do not fully with the Trafficking Victims Protection Acts (TPVA) minimum standards, but are making significant efforts to bring us into compliance with those standards. Currently our anti-trafficking law is in draft stage, and it is not known if and when the bill will become law. It has been stated that we have several laws that deals with aspects of human trafficking, inter alia the Childrens Act 38 of 2005 (Chapter 18- sections 281 to 291); Films and Publications Board 65 of 1996; Human Tissues Act 65 of 1983; The Corruption Act 94 of 1992; Prevention of Organised Crime Act 121 of 1998; Infringement of Immigration Act 13 of 1996; Refugee Act 130 of 1998; and Extradition Act 67 of 1962. I will discuss these legislative provisions contained in the Criminal Law (Sexual Offences and Related Matters) Amendment Act  [62]  as well as the Prevention and Combating Trafficking in Persons bill (2009). The Criminal Law (Sexual Offences and Related Matters) Amendment Act The Sexual Offences Act (SOA) can be used in the interim to charge and prosecute traffickers and victims of trafficking. Section 70 and 71 of the SOA are transitional provisions relating to trafficking. Section 70 deals with application and interpretation and section 71 deals with trafficking in persons for sexual purposes. Section 70 states that 70(b) trafficking includes the supply, recruitment, procurement, capture, removal. Transportation, transfer, harbouring, sale, disposal, or receiving of a person, within or across the borders of the Republic, by means of a threat of harm; the threat or use of force, intimidation or other forms of coercion; abduction; fraud; deception or false pretences; the abuse of power or of a position of vulnerability, to the extent that the complainant is inhibited from indicating his or her unwillingness or resistance to being trafficked, or unwillingness to participate in such an act; or the giving or receiving of payments, compensation, rewards, benefits or any other advantages for the purpose of any form or manner of exploitation, grooming or abuse of a sexual nature of such person, including the commission of any sexual offence or any offence of a sexual nature in any other law against such person, whether committed in or outside the borders of the Republic, and trafficks and trafficked have a corresponding meaning. Section 71 reads 71(1) Any person (A) who trafficks any person (B) without consent of B, is guilty of the offence of trafficking in persons for sexual purposes. 71(2) A person who- orders, commands, organises, supervises, controls or directs trafficking performs any act which is aimed at committing, causing, bringing about, encouraging, promoting, contributing towards or participating in trafficking or incites, instigates, commands, aids, advises, recruits, encourages or procures any other person to commit, cause, bring about, promote, perform, contribute towards or participates in trafficking, is guilty of an offence of involvement in trafficking in persons for sexual purposes. 71(3) For the purpose of subsection (1), consent means voluntary or uncoerced agreement. The SOA elaborates further on the circumstances. It states that 71(4) Circumstances in which B does not voluntarily or without coercion agree to being trafficked, as contemplated in subsection (3), include, but are not limited to, the following where B submits or is subjected to such an act as a result of any one or more of the means or circumstances contemplated in subparagraphs (i) to (vii) of the definition of trafficking having been used or being present; or where B is incapable in law of appreciating the nature of the act, including where B is, at the time of the commission of such act- asleep; unconscious; in an altered state of consciousness, including under the influence of any medicine, drug, alcohol or other substance, to the extent that Bs consciousness or judgement is adversely affected. 71(5) Any person who has been trafficked is not liable to stand trial for any criminal offence, including any migration-related offence, which was committed as a direct result of being trafficked. Any act of trafficking which is not included in sections 70 and 71 of the SOA, such as kidnapping, assault (common, and assault GBH), extortion, slavery, attempted murder, and murder have to be prosecuted under general statutory or common law offences.  [63]   Malachi v Cape Dance Academy International Pty Ltd Others In a recent reportable case of Tatiana Malachi v Cape Dance Academy Others  [64]  , even though the legal question did not deal with human trafficking, I think that it was a case of human trafficking. The facts are cited as follows. Applicant is a citizen of the Republic of Moldova. She was employed as an exotic dancer at a nightclub managed by the first respondent (Cape Dance Academy International PTY LTD) and second respondent (House of Rasputin Properties PTY LTD). On her arrival in South Africa during March 2009, applicant handed her passport to the owner of Rasputin. Applicant was initially informed that her passport would be kept for 30 days in order to have it registered at the Police station. Second respondent subsequently kept applicants passport during the entire period of her employment. The owner of second respondent informed applicant that he would not return her passport unless the applicant paid him $2000 for her air ticket and R20 000 as a levy. The applicant was unable to pay either of these amounts, as she was not earning sufficient income during her employment with second respondent. The applicant was to remain in custody pending the return date, which was to be 30 July 2009. If the applicant furnished adequate and satisfactory security for the total claim of R100 000 plus interest and costs, the applicant would be released from custody and the order for arrest discharged. The applicant had no assets of any tangible value in South Africa and therefore was unable to furnish adequate and satisfactory security. By agreement between the parties, the first and second respondents secured the discharge of the arrest warrant by the third respondent and the applicant was released from the custody on 24 July 2009. Applicant sought and received the assistance of the Consul General of Russia to facilitate her return to her home country Moldova. Prior to her departure from South Africa on 9 July 2009, applicant was arrested and taken into custody at Pollsmoor Prison. The arrest was made pursuant to a court order issued by the third respondent ex parte on 9 July 2009 and warrant of arrest tanquam suspectus de fuga. If we interpreted sections 70 and 71 as is, based on the facts of this case, Ms Malachi arrived in March 2009 and employed as an exotic dancer. It not evident from the facts how she got to be employed as an erotic dancer. Lets for