Forces on Various Bodies in an Airstream Essay Example

Forces on Various Bodies in an Airstream Essay The report details the theory and experimental method of how to determine the forces on different bodies within an air stream. The theory involves the drag and lift coefficients. The first experiment will measure the drag force on a sphere and how it varies. This is then repeated for different axisymmetric bodies. The last experiment will measure how the lift and drag forces on an aerofoil vary with angle of incidence. 1. 1 Purpose of Experiment To observe quantitatively how the drag force varies on a sphere with the velocity of the airstream. To measure the drag forces of various axisymmetric bodies (all with the same circular maximum cross section and axis of symmetry aligned in the flow direction) and to observe how the forebody and afterbody shape affect the drag. To observe how lift and drag forces on an aerofoil vary with angle to the airstream. Explain the nature of force variation and local flow direction at various points around a body using a wool-tuft for investigation. 1. 2 Background and Theory Relative motion between a body and a fluid (when a body moves through a fluid at rest or when a fluid flows over a body) causes a force on the body. We will write a custom essay sample on Forces on Various Bodies in an Airstream specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Forces on Various Bodies in an Airstream specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Forces on Various Bodies in an Airstream specifically for you FOR ONLY $16.38 $13.9/page Hire Writer The horizontal component of this force is the drag and the vertical component is the lift. The magnitude of these forces depends on numerous factors. Those to do with the body; the shape, attitude, size and in some cases the surface roughness. Those concerning the fluid; density, viscosity, unsteadiness and turbulence in the fluid stream. The velocity of the relative motion is also important (if high enough to approach the speed of sound in the fluid). However, during this experiment surface roughness, unsteady and turbulent flow cannot be investigated and the velocities are low compared to the speed of sound in the fluid. Under these conditions the force felt at a particular attitude can be written as shown in equation 1, as a function of size of the body, the density and viscosity of the air and the velocity. (Equation 1) By using dimensional analysis, to make the equation homogenous with respect to the three independent dimensions (mass, length and time). The relationship shown in equation 2 can be discovered. (Equation 2) By convention, the length squared term is interpreted as an area and factor of a half is introduced into the force term, giving equation 3: (Equation 3) Now, the term can be defined as a force coefficient (CF) and the term defined as the Reynolds number (Re). The components of the force can now be expressed as coefficients: Coefficient of drag = (Equation 4) Coefficient of lift = (Equation 5) For object which are not prismatic in cross section, the area is taken as the frontal area. In the case of spheres the maximum cross sectional area is used and the length term used in the Reynolds number is taken as the diameter. For lifting bodies, the area used is the plan area at zero incidence and the length used is the chord length. The force coefficients are a function of Reynolds number. However for certain ranges of Reynolds number the force coefficients are almost independent of Reynolds number. If this is the case, the coefficient can be considered to be constant and so the force is directly proportional to the velocity squared, the density of fluid and the area. The force coefficient will, be different for different shape bodies and for different attitudes. 2- APPARATUS 2. 1 Experimental setup 2. 2 Experimental theory An axial flow fan is connected to a motor, by changing its power input, the velocity of the airstream can be changed and measured using the pitot tube. The tube is positioned in the exit plane of the contraction and will measure the local pitot pressure. The flow coming out of the contraction can be assumed parallel so static pessure across the flow will not change and be equal to atmospheric pressure. Thus using Bernouillis equation, the velocity can be calculated using the difference between pitot and ambient atmosphere pressure: (Equation 6) An inclined tube manometer was used to gain accurate measurements of pressure. The change in pressure and can be calculated by measuring the change in length of inclined fluid, l, and using the hydrostatic equation: Where ? m is the density of the manometer liquid ? is the angle of the tube to the horizontal The two component spring balance enables the force components in both horizontal and vertical directions independently of each other. The wool tuft is attached to a probe, so that the local direction of flow at any point can be investigated. 2. 2 Experimental method The manometer liquid level was set to zero and the inclination was adjusted until most suitable and the pitot tube connected to the manometer (the pitot tube was connected to the resevoir, the other end left open to the atmosphere). The sphere was mounted on the component spring balance and paced roughly in the centre of the airstream parallel to the pitot tube. The initial readings of the component spring balance were recorded. For a range of different speeds (controlled using the power of the motor) the manometer and drag readings were recorded. The wool tuft was used to observe the changes of flow around the body and determine the separation point and diameter of the separation region downstream of the body. The same was repeated for other axi-symmetric bodies (replacing the sphere); the drag was measured at the maximum velocity and the separation region was estimated using the wool tuft. Next, a symmetric aerofoil (mounted with zero angle of incidence to oncoming airflow) was positioned near to the centre of the airstream. At maximum airspeed the manometer reading was taken. The angle of incidence was increased by intervals of 5 degrees until 45 degrees. At each interval the manometer reading, drag and lift were recorded.

Customer Relationship Management Systems The WritePass Journal

Customer Relationship Management Systems Abstract: Customer Relationship Management Systems Available at: http://doblegroup.com/dell-case-study/ Fan, Y. W., Ku, E. (2010). â€Å"Customer focus, service process fit and customer relationship management profitability: the effect of knowledge sharing.†Ã‚  The Service Industries Journal. Vol.  30(2) pp. 203-223. Jayachandran, S., Sharma, S., Kaufman, P., Raman, P. (2005). â€Å"The role of relational information processes and technology use in customer relationship management.†Ã‚  Journal of Marketing. Vol.  69(4), pp.177-192. Lin, R. J., Chen, R. H., Chiu, K. K. S. (2010). â€Å"Customer relationship management and innovation capability: an empirical study.†Ã‚  Industrial Management Data Systems. Vol.110(1) pp.111-133. Ãâ€"ztaysi, B., Sezgin, S., Ãâ€"zok, A. F. (2011). â€Å"A measurement tool for customer relationship management processes.†Ã‚  Industrial Management Data Systems. Vol.  111(6) pp. 943-960. Payne, A., Frow, P. (2005). â€Å"A strategic framework for customer relationship management.†Ã‚  Journal of Marketing. Vol.  69(4) pp.167-176. Reinartz, W., Krafft, M., Hoyer, W. D. (2004). â€Å"The customer relationship management process: its measurement and impact on performance.†Ã‚  Journal of Marketing Research. Vol. 41(3) pp.293-305.

Film or Play Review Movie Example | Topics and Well Written Essays - 500 words

Film or Play - Movie Review Example In order to avoid Antonia and Alonzo, he proceeds to create his own kingdom in a remote island in Greek with Miranda, Aretha, his mistress, and Kalibanos, a goat herder and the only inhabitant on the island before Philip arrives. On this magical island with surreally beautiful scenery, the obsession of Philip unfolds. His exercise of power affects the agency of characters who are already marginalized by their race, gender, and social status. In addition, Philip’s character also serves as a critique of an upper-middle class male who occupies a high social status but is oppressed by people who possess even more wealth and social capital that him. Unlike Shakespeare’s Prospero, the protagonist of the film Philip, performed by John Cassavetes is portrayed as a miserable middle-aged man who is tired of his career and social life. On the other hand, his employer Alonzo is extremely upbeat and ambitious, even though he appears to be much older than Philip. Instead of having an Antonio figure in the film to rebel against the protagonist, Mazursky chooses to transform that character into Antonia. This is an interesting move that will affect the audience’s feeling towards Philip as Antonia is a loyal but frustrated wife instead of an antagonistic character, the audience is less likely to be sympathetic towards Philip. Antonia’s hair style and clothing highlights her confidence and femininity, which seems to intimidate Philip. Another interesting female character in the film is Aretha, the Ariel figure in Shakespeare’s original play. She dons an airy white and half transparent gown throughout the whole mov ie, complementing the serenity of the island. Here Mazursky once again plays on the idea of masculinity and femininity. Philip explicitly refuses to have sex with Aretha without explaining the reason. It seems that Philip remains insecure about his power as a man after being oppressed and cheated respectively by Alonzo

Public Policy Essay Example | Topics and Well Written Essays - 1500 words

Public Policy - Essay Example It also helps in evaluating financial as well as non-financial data which helps to improve and enhance domestic performance of a country. They help a government to make critical decisions which may include processes efficiency, investing in new administrative functions, improvement of infrastructure etc. It is mostly intended towards public policies and it also utilizes the information which can help governmental organizations in making decisions which help them to achieve their goals and objectives. Only limitations which can be placed when emphasis is placed on public management is diversion from administrative functions. According to Lonsdale (1999), the role of Public management has been highly important in the growth and development of the public sector of the UK since the last few decades. It has helped to develop a very important way of re-arranging and re-organizing public and government sector bodies within the UK for and has integrated various important disciplines such as management, financial reporting, auditing etc. In a broader context, the concept of public managementfocuses on failures and incompetency of public sector management and evaluates the nature and process of public sector activity along with public administration. Several important public sector issues as Utilization of resources, waste management, accountability etc are related with public management. Public management in UK has certainly explored some extremely important and very influential expressions for the economic policies of the country and also the business related as well as public sector reforms of the UK governme nt which has occurred since 1979 (Pollitt, 1993).The impact of the Public management policy in the UK has been highly influential and this has resulted in some very important changes which the many political parties within the UK have left untouched. The government of UK implemented certain very

Hygiene and Food Essay Example for Free

Hygiene and Food Essay The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premises. LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended). The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer. -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out. -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premisesIn your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Officer Food Regulation _______ (NSW) (as amended). This regulation, covers in detail, everything related to the handling of food, the food handler, premises, equipment and the transportation of food and food products -construction standards for food premises and food vehicles -Appliances used to handle food for sale to be clean and unbroken and not to be made out of certain materials -Packaging and labelling of food -Protection of food from contamination -Cleanliness and hyginene of persons LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended). The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer. -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out. -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premisesIn your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Officer Food Regulation _______ (NSW) (as amended). This regulation, covers in detail, everything related to the handling of food, the food handler, premises, equipment and the transportation of food and food products -construction standards for food premises and food vehicles -Appliances used to handle food for sale to be clean and unbroken and not to be made out of certain materials -Packaging and labelling of food -Protection of food from contamination -Cleanliness and hyginene of persons LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended). The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out. -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premisesIn your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Officer Food Regulation _______ (NSW) (as amended). This regulation, covers in detail, everything related to the handling of food, the food handler, premises, equipment and the transportation of food and food products -construction standards for food premises and food vehicles -Appliances used to handle food for sale to be clean and unbroken and not to be made out of certain materials -Packaging and labelling of food -Protection of food from contamination -Cleanliness and hyginene of persons LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended). The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out. -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premisesIn your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Officer Food Regulation _______ (NSW) (as amended). This regulation, covers in detail, everything related to the handling of food, the food handler, premises, equipment and the transportation of food and food products -construction standards for food premises and food vehicles -Appliances used to handle food for sale to be clean and unbroken and not to be made out of certain materials -Packaging and labelling of food -Protection of food from contamination -Cleanliness and hyginene of persons LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended) The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out. -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premisesIn your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Officer Food Regulation _______. (NSW) (as amended). This regulation, covers in detail, everything related to the handling of food, the food handler, premises, equipment and the transportation of food and food products -construction standards for food premises and food vehicles -Appliances used to handle food for sale to be clean and unbroken and not to be made out of certain materials -Packaging and labelling of food -Protection of food from contamination -Cleanliness and hyginene of persons LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended). The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premises. In your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Officer Food Regulation _______ (NSW) (as amended). This regulation, covers in detail, everything related to the handling of food, the food handler, premises, equipment and the transportation of food and food products -construction standards for food premises and food vehicles -Appliances used to handle food for sale to be clean and unbroken and not to be made out of certain materials -Packaging and labelling of food -Protection of food from contamination -Cleanliness and hyginene of persons LegislationPurpose (WHY DOES IT EXIST? )Key FactsLinks to content (how you could use this in an exam answer) HYGIENE AND FOOD SAFETY Food Act 2003 (NSW) (as amended). The legislation covers the areas of food for human consumption and the general requirements which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary. They also have an absolute right to inspect any food premises they believe to be involved with the preparation, storage or handling of food designated for sale -If an environmental health officer inspects premises reports that they are not hygienic, they can apply to the department of health to issue a clean-up notice, ordering specific repairs or improvements that must be carried out -If the clean up is not carried out to their satisfaction of the environmental health office, then can order to close the premise or prevent the sale of any food from that premises. In your essay if you mention the key departments of hospitality you can mention the Food Act 2003 to refer to the quality of the food items, the premises that they are cooked in and consequences of not having a satisfactory premises to serve the food in which you would have a report from an Environmental Health Offis which will ensure food sold to the public will be safe and suitable to eat in NSW-It is an offence to sell contaminated food or food that has been falsely described. -The food premises and food handler must also conform to certain minimum standards of hygiene or risk prosecution, considerable fines and even jail -The food act covers all aspects related to the handling of food and the maintenance of food premises -The act states the role and responsibilities of the environmental health officer -Environment health officers are authorised to seize and remove, or prevent the sale of, any item if they consider it necessary.

Resistance of a Wire :: Papers

Resistance of a Wire Aim: - I hope to find out how resistance of a wire is affected. Prediction: - I predict that as the length of the wire increases the resistance will also increase. Scientific Knowledge: - ======================= A wire is a bundle of metal strips coated in plastic. The plastic can vary in colour and connect to different terminals These are: - ------------ ÂÂ · Black = negative terminal ÂÂ · Red = positive terminal ÂÂ · Blue = neutral terminal ÂÂ · Green and yellow = earth terminal ÂÂ · Brown = live terminal The material varies because it has free electrons, which are able to flow through the wire. The number of the electrons depends on the amount of electrons in the outer energy shell of the atoms, so if there are more or larger atoms then there must be more electrons available. If the material has a high number of atoms there will be a high number of electrons causing a lower resistance because of the increase in the number of electrons. Also if the atoms in the material are closely packed then the electrons will have more frequent collisions and the resistance will increase. Resistance is measured in Ohm's (ÃŽÂ ©). Ohm's Law The law actually says that the resistance of a metal conductor is the same whatever the current - unless it's getting hotter. However most people think of these equations when the law gets mentioned: V = IR V is Voltage in Volts, I is Current in Amps and R is resistance in Ohms. If the length of the wire is increased then the resistance will also increase as the electrons will have a longer distance to travel and so more collisions will occur. Due to this the length increase should be proportional to the resistance increase. If the wires width is increased the resistance will decrease. This is because of the increase in the space for the electrons to travel through.

The Nonverbal Decoding Ability

1. Bonnet, C. (1993). Adoption at birth: prevention against abandonment or neonaticide. Child Abuse Negl, 17(4), 501-13. This study aims to clarify some of the anomalies that exist between abandoning a child at a public place and the choices made by the parents at the time of the birth of a child. 2. Bowen, E. , & Nowicki, S. (2007). The Nonverbal Decoding Ability of Children Exposed to Family Violence or Maltreatment: Prospective Evidence from a British Cohort. Journal of Nonverbal Behavior, 31(3), 169-184.This study outlined as to how the exposure of children to family violence and maltreatment in first four years of age can influence a child’s expression of fear and other related psychological issues. 3. Buller, David. (2005). adapting minds: evolutionary psychology and the persistent quest for human nature. MIT Press: New York. This book presents a philosophical analysis of evolutionary psychology and discusses some of the most important works in this field. 4. Castellucci & Plum. (1999). Ethics and Adoption Indeed. Retrieved 24 April 2009 from http://www. bastards. org/bq/bq11/ebdrep. htmThese are some of the notes from Evan B Donaldson Symposium on Ethics and Adoption and basically discuss some of the work presented by the participants in that symposium. 5. Conte, J. R. , & Schuerman, J. R. (1987). Factors associated with an increased impact of child sexual abuse. Child Abuse & Neglect, 11(2), 201. This study dealt with the factors in assessing the impact of sexual abuse on children. Results indicated that there are variable results indicating different degree of variability of the results. 6. Daro, D. , & McCurdy, K. (n. d. ). Preventing child abuse and neglect: programmatic interventions.Child Welfare, 73(5), 405. This study provides an insight into how the prevention efforts at altering such behaviors can contribute towards the overall risk to the children and the families. This study further discusses as to what we know about the efficacy and e fficiency of such efforts and what some of the problems being faced are. 7. Finkelhor, D. , Williams, L. M. , & Burns, N. (1988). Nursery crimes: Sexual abuse in day care. No. : ISBN 0-8039-3400-9, 272. This study provides an empirical evidence of the child abuse taking place within the daycare facilities with children under the age of 7 years.This article therefore defines the nature of the problem, the effectiveness of the different investigation methods as well as the impact of such incidences on the community as a whole. 8. Gauthier et al. (1996). Recall of Childhood Neglect and Physical Abuse as Differential predictors of Current Psychologically Functioning. Retrieved 24 April, 2009 from http://www. ncbi. nlm. nih. gov/pubmed/8832112 This study attempts to bridge the gaps between the neglect and physical abuse on the psychological functioning of the children.By examining the sample of 236 male and 276 female undergraduate students, this study therefore empirically concluded tha t there is an strong relationship between the physical abuse and psychological functioning. 9. Gelles, R. J. , & Harrop, J. W. (1991). The risk of abusive violence among children with nongenetic caretakers. Family Relations, 78-83. By using a sample of more than 6000 participants, this study attempted to understand whether the non-genetic caretakers use more violence than the genetic caretakers. 10. Golden, O. (2000). The federal response to child abuse and neglect. The American psychologist, 55(9), 1050.This study outlines some of the efforts of the administration on children and family in improving the lives of the maltreated children. 11. Groza, V. , & Ryan, S. D. (2002). Pre-adoption stress and its association with child behavior in domestic special needs and international adoptions. Psychoneuroendocrinology, 27(1-2), 181-197. This study focused on the cross sectional data analysis of the adopted children from US and Romania. The major findings of this study include the recommen dations for families to understand how negative experiences in early childhood can affect child behavior. 12.Hill, R. B. (1977). Informal Adoption among Black Families. This is the study on the informal adaptation patterns of children in Black American families and outlined how different factors contribute to such patterns. 13. McNamara, Carter. (2008) Analyzing, Interpreting and Reporting Basic Research results. Free Management Library. Retrieved 24 April 2009 from http://managementhelp. org/research/analyze. htm This article, published on internet describes as to how to approach the research professionally and from an academic point of view. 14. Nalavany, B. A. , Ryan, S. D. , Howard, J. A., & Smith, S. L. (2008). Preadoptive child sexual abuse as a predictor of moves in care, adoption disruptions, and inconsistent adoptive parent commitment. Child Abuse & Neglect, 32(12), 1084-1088. This study actually attempts to reinforce a small body of research that the CSA complicates furthe r the child adaptation process. 15. Spinetta, J. J. , & ER, D. (n. d. ). The child-abusing parent: A psychological review. Child Abuse: A Multidisciplinary Survey, 14. 16. Tan, T. X. (2006). History of Early Neglect and Middle Childhood Social Competence: An Adoption Study. Adoption Quarterly, 9(4), 59.This study examines whether the earlier history of neglect and maltreatment in infancy has any influence over the competence of the children when they reach the adolescence. This study further assesses the impact of such on the social interaction of children as well as their performance in the extracurricular activities. 17. Tongue, A. C. (1991). The ophthalmologist's role in diagnosing child abuse. Ophthalmology, 98(7), 1009. This study discusses the role of Ophthalmologist in diagnosing the early child abuse and as such provides certain recommendations as to how such violations can be decreased. 18. Watson et al. (1994).Substitute Care Providers: Helping Abused and Neglected Childre n. DIANE publishing Chicago This study provides insight into the development of abuse and drug exposure into the children and how to recognize different physical indicators to diagnose such state of children. 19. Wilson, M. I. , Daly, M. , & Weghorst, S. J. (2008). Household composition and the risk of child abuse and neglect. Journal of Biosocial Science, 12(03), 333-340 This study attempted to assess how the different factors such as family composition, income, age of the victim as well as household consumption can result into child abuse. 20. Harter, Susan.(2001). the Construction of the Self: A Developmental Perspective. Guilford Press: New Jersey This book attempts to explain as to how the children and their self perception about themselves define their relationship with others. This book therefore also provides the information about the self development of children which take place over the period of time. 21. Grotevant, Harold. (2005). Minnesota/ Texas Adoption research Proje ct. Retrieved 24 April 2009 from http://cehd. umn. edu/FSoS/assets/pdf/ResearchDiscovery/Procedures_Measures2. pdf This study basically attempt to measure the validity of different hypothesis