Harmonic Motion-Elastic spring Lab Report Example | Topics and Well Written Essays - 250 words

Harmonic Motion-Elastic spring - Lab Report Example The plot resulted in a straight line that was used to determine the elastic constant of the spring and its accuracy based on the slope. In this harmonic motion experiment, the spring oscillated up and down with amplitude and a time period measured as t. The theory underlying the phenomenon being studied here was that of Hooke’s law for an elastic spring (Wilson & Hall, 2009). In setting up the experiment, a spring, set of weights, a stand and timing mechanism were used. In releasing the weights, and starting the oscillations, an electromagnet was used. The procedure was to connect the weight to the spring and power the electromagnetic with the metal weight sticking to the electromagnet, and when the button is released, oscillations started. The hypothesis was that there is a dependence period in the mass of the oscillator. This is proven given that, with the addition of extra mass, the time increased from 8 in the first experiment to 12 in the last experiment. Averagely the time increase from 0.76 to 1.2 in the last experiment. This proves the null hypothesis that time period is dependent on the mass of

Crime scene analysis - Witness Statement Assignment

Crime scene analysis - Witness Statement - Assignment Example Each member of the group had been directed to recover and package at least two exhibits. In addition, every member of the team was to prepare a sketch with measurements as well as to complete a scene book recording the entire details. I along with a team, comprising three other detectives, left our station at 0400 hrs and reached the location at 0415 hrs. On reaching the location I briefed the other team members on the procedure to be followed and told them that I will do the video recording of the entire area as well as the main items we recover. However, they were told to take any specific items that they may recover and retrieve as evidence. As soon as the briefing process was over, we did the initial assessment of the crime scene and I proceeded to record the scene and the recording on CD is submitted as Exhibit MAS-001. A copy of the same has been kept in Police HQ on thumb drive. During my initial assessment, I estimated that the actual crime scene would be around 50 metres fro m the sidewalk and about 10 metres from a footpath inside the park, by the side of the hedge. I could identify the area distinctly because of the flattened grass turf in the scene and, additionally, there were also a few small clumps of grass in the area, which suggested of a person trying to grab the grass while fighting. Besides, I could also see the finger marks on the ground as if someone was trying to clutch the ground for balancing or crawling away to ward of an attacking person. Similarly, I could also see elongated marks on the ground as a result of someone attempting to hold ground while pushing another person away. There were also telltale marks of shoe toes on the ground suggesting that someone was balancing the feet on ground to hold another person down. Subsequently, I recorded the other items that were lying on the crime scene. At first I retrieved the condom and its wrap, which have been produced as exhibit MAS-002. The condom had some semen in it and there were dropl ets on the ground nearby. I recorded these in close up as well as the area from where it was recovered. The first was a woman’s underwear hanging from a tree and I recorded it from the position we were standing. I went closer to record it from below. After retrieving it, I again recorded it from close range. It was a black coloured, laced panties and its elastic band had become loose. It had torn in two places clearly suggesting that someone had pried it off rather than the person wearing it removed it. It was a Calvin Klein brand I also recorded label and the areas where it had been torn. It is produced as Exhibit MAS-003. Next, I recorded a beer bottle that was lying on the ground. Initially, I recorded it from a distance and then went closer to record a close up view. I also turned the bottle on to its other side to record its label. It was Heineken and there was some beer still left in the bottle. I have produced this as Exhibit MAS-004. I also recorded the black shoe, wh ich was of Lee Cooper brand and 9 inches in size. There were mud stains on the shoe and on the toe it had mud sticking to it with small particles of grass sticking to it. I recorded it in close up and it has been produced as exhibit NBW-001. The next item was a knife, which I recorded, following the same procedure as in the other

Public health science slp 15 Essay Example | Topics and Well Written Essays - 2750 words

Public health science slp 15 - Essay Example Universities and hospitals offer medical technology programs. 1 Coursework required include courses in biology, microbiology, chemistry physics, math and statistics along with course work to improve communication skills and computer analytics. The field has subspecialties in various departments which include, Hematology or the study of blood(this department often works in conjunction with a Blood bank supplying blood products), Biochemistry and Special Chemistry and the providing of analytical assays on most normally blood and urine and there biochemical and immunological characteristics, Bacteriology and Parasitology which detect infectious agents and Histology and cytology working with tissues and cell samples to slides for pathological examinations. Individual laboratories which are licensed by appropriate state regulatory agencies are also accredited and inspected by professional agencies such as the College of American Pathologists(CAP)2. In addition laboratories must be in acco rdance with public health regulatory bodies regarding the reporting of infectious diseases and the proper disposal of hazardous wastes such as the Center for Disease Control(CDC)3 Environmental health professional go by many titles, Environmental Health Practitioners, Environmental Health Officer, Public Health Officer. ... Most Environmental Professionals sub specialize in one of the following areas: Reducing Air, water, soil, noise, or radiation pollution Protecting the food supply Improving safety in public schools, public areas, and workplaces Ensuring safe living conditions in housing Promoting public health by identifying hazards4 Prevention is a key to environmental health work with education, research and improved public policy employed to make the world a cleaner and safer place to live. To enter the field a college degree in Environmental Health or an associated life-science is required. Two public health regulatory agencies chosen are The Center for Disease Control(CDC) and the Environmental Protection Agency (EPA). The Centers for Disease Control(CDC) The Centers for Disease Control and Prevention (CDC), a part of the U.S. Department of Health and Human Services, is the primary Federal agency for conducting and supporting public health activities in the United States. CDC's focus is not only on scientific excellence but also on the essential spirit that is CDC - to protect the health of all people. CDC keeps humanity at the forefront of its mission to ensure health protection through promotion, prevention, and preparedness. Composed of the Office of the Director, the National Institute for Occupational Safety and Health, and six Coordinating Centers/ Offices, including environmental health and injury prevention, health information services, health promotion, infectious diseases, global health and terrorism preparedness and emergency response, CDC employs more than 14,000 employees in 54 countries and in 170 occupations.5 The goal of the CDC is to keep people healthy at every

Malaria case management Essay Example | Topics and Well Written Essays - 3000 words

Malaria case management - Essay Example Eradicating malaria in the world is one of the top priorities of global health organisations and is a key objective of attaining universal health related targets stipulated in the Millennium Development Goals (MDGs) (United Nations 2010). Consequently, both developed and developing countries have reinvigorated efforts to combat the disease that has remained a serious threat to health and wellbeing of people across the world for a long period. Currently, policies to control and prevent malaria infections form an important component of public health systems and primary care services play a pivotal role in their implementation. Some of malaria control and preventive measures include application of insecticide treated bed nets to prevent human contact with mosquitoes, indoor residual spraying with efficient insecticide and eradicating mosquito breeding habitats (Mathews 2011). Other measures include use of anti malarial drugs to treat the infection in all segments of affected population, including pregnant women and HIV/AIDS patients in addition to maintaining sustained malarial surveillance across the world (Mathews 2011). These policies have enhanced management and treatment of malaria in primary care service. However, before investigating impacts of government policies in management and treatment of the condition in primary care, it is important to explore the symptoms and causes of malaria and how they inform nursing practice. Causes and symptoms of malaria Malaria is a vector borne disease transmitted by female anopheles mosquito. The causative malarial parasite is a protozoan of genus plasmodium (MacDonald 1997). There are five major species of malarial parasites responsible for transmission of malaria. They include Plasmodium vivax, Plasmodium falciparum, Plasmodium malariae, Plasmodium ovale and Plasmodium knowlesi. However, plasmodium vivax and plasmodium falciparum are the most important causes of malaria infection in the world (MacDonald 1997). The initi al symptoms of malaria infection are not specific and demonstrate remarkable resemblance to signs of a minor systemic viral disease (WHO 2009). The symptoms include fatigue, headache, fatigue and lassitude, normally followed by abdominal, muscle and joint pains. These symptoms are accompanied by fever, anorexia, chills, profuse sweating and vomiting. These signs are the major defining characteristics of malaria infection at the early stage (WHO 2009). People in regions where malaria is endemic are usually knowledgeable about these symptoms and consequently, incidences of self diagnosis are prevalent. Achan et al (2011) noted high incidents of malarial over diagnosis in primary care services especially in malaria endemic regions based on the demonstrated symptoms. According to Brieger (2009), the severity of malarial symptoms varies depending on the type of parasite involved. Infection by plasmodium vivax and plasmodium ovale demonstrates more pronounced symptoms of fever and chills than other malarial species. However, fatality rate at early malaria infection is rare but it increases when treatment is delayed and on prescription of ineffective drugs (Brieger 2009; WHO 2009). Delaying treatment of

Assess the assertion that an increase in Eucharistic devotion Essay

Assess the assertion that an increase in Eucharistic devotion contributed to a narrowing of medieval society - Essay Example As a result of such circumstances, where individuals in the society were content with their lot, most of the population of medieval Europe could neither read nor does write, leaving these to the higher rank of the priesthood. In addition, this period saw the growth of the power of the Church, where almost all of the activities of the Christians in the whole of Western Europe was dictated from Rome, thus solidifying the authority of the Church hierarchy.1 Therefore, the Church established the doctrine, which was followed by medieval Europe, and this more often than not was developed in the Church’s favour, since it worked towards the promotion of its power. While these situations often worked in favour of the church, they had the negative impact of ensuring that there was little development of independent thought within the populace, meaning that the society became narrowed. Among the major causes of the narrowing of medieval society was the practice, instituted by the Church, of Eucharistic devotion, which was a requirement for all of those people who professed the Christian faith during this period. The practice of Eucharistic devotion was a church tradition, which was based in the exhibition of the Blessed Sacrament by a priest so that it could be adored by the faithful. The adoration of the sacrament was considered a sign of the devotion that individuals felt towards Jesus Christ as their saviour. The faithful believed that Christ was present in the form of the consecrated altar bread and their adoration of it meant that they were opening their hearts to receive him. Furthermore, the faithful in medieval Europe, through their devotion to the sacrament, were able to meditate by looking directly at it, adding to the belief that they were participating in the continuation of the Eucharist. The Eucharistic devotion was considered to be a form of the worship of Christ as the saviour, which involved his being present in

Law Essay Example | Topics and Well Written Essays - 2000 words - 5

Law - Essay Example This restriction emanate from the fact that such volume-footed measures are more economically destabilising than any price based trade measures like taxes and tariffs. Article XI also prescribes small exception to this rule namely An export or import restriction or ban which may be viewed as a detriment may be challenged as quantitative restriction which is forbidden by Article XI of GATT. However, if commerce on domestic product is also banned, then the import ban might be viewed as an internal effort enforced at the point of importation, which is allowed by Article III (4) of GATT. (Chris Wold 1996:850). Dumping means when merchandises are exported at prices which are less under the â€Å"normal value† in the country of export made. (GATT VI). In the absence of any domestic price for that product, then price of an analogous product for export to a third nation is employed. The margin of dumping is the glut of the normal price over the price at which the good is being dumped. In National Com Growers v. C.I.T1, Canadian courts were not reluctant in agreeing the levy of countervailing duties against imported subsidised agricultural products which resulted or likely to result in causing material damage to Canadian agricultural industry. (Baggaley 1998). The main aim of Article VI of GATT is to offer a relief to importing member country where imported or dumped subsidised products threaten or create substantial injury to a recognised industry or substantially hinder the constitution or formation of a domestic industry. To claim a remedy under GATT VI, it is essential to make a complaint that there exists a predatory pricing, i.e. pricing a product with the aim of forcing out the competition in the market. Hence, if any domestic manufacturer wishes to invoke the provision of GATT VI, he has to demonstrate that it has been invoked to

Abstract Data Structures Essay Example | Topics and Well Written Essays - 1000 words

Abstract Data Structures - Essay Example In fact, the majority of object-oriented programming languages encompass the characteristics of user defined abstract data types. For example in C++ this operation can be performed by using a class that has no protected/public data members (simply private), nor some techniques, nor friends that return references/pointers to some of the private fields (C2, 2008). This paper presents an overview of various abstract data structures that are used in computing. An Overview of Abstract Data Type The design of a computer program can be made much easier and simpler by making use of the abstract data structures. In this scenario, the program’ data and information can be arranged into  abstract data structures  (or simply ADS). For instance, we can use arrays (where an array is a set or sequence of consecutive memory locations that has the same name and same type) to form a table that has 3 columns and an undefined number of rows, in the scenario of an  array  with 2 dimensions: 1-a huge amount of rows, and 2three columns. In addition, a vital characteristic of contemporary computer programs is the capacity to operate abstract data structures with measures or techniques that are pre-defined by the software designer or programmer. However, for this purpose data structure should be used cautiously, with consideration, and in detail. (Schmalz, 2007). Sometimes the term ‘abstract data structure’ is used  in place of abstract data type. The basic idea here is that we are involved in the real structures to store data. In this scenario, the one most simple abstract data structure is the  Linked List. Basically, a linked list is described through the techniques that are applied on it, which includes  tail,  head, cons  and is-empty. In addition, a list based data structure is an ordered linear structure. In this scenario, its head is the initial element in line; list data structure tail is the list composed of all the elements besides the fi rst. The cons of an element of a list is the list data structure whose head is that element, as well as whose tail is the unique list. Moreover, a list can be empty; in that scenario it could generate an error if someone attempts to access its tail or head; however an element can be considered to it to have a new list (Huntbach, 1999). What is Abstraction? The fundamental idea of abstraction is that a data type should be described simply in the form of processes that are applicable on objects of its kind, not in scenario of how the category is applied on a real computer (for example, an array or a stack). In this scenario, the objects of a specific category are built and checked simply through processes calls that raise the access functions for that particular type. In addition, it allows the programmers to change the data type without making any change outside the module of code in which that type is defined. Moreover, a common instance of an abstract data structure is a stack. In this case functions can be performed to generate an empty stack, to drive values onto a stack, as well as to pop values from a stack (BookRags, Inc., 2012). Main Features and importance for Computing From the perspective of abstract data structures, an abstract class is a class that does not encompass an application for one or more techniques. In fact, the abstract data structures do not have any direction of what to perform in response of a call to the process that is abstract. In addition, in order to generate an object for the abstract class we need to generate a real subclass and create an object for it to access it (GeekInterview, 2007; BookRags, Inc., 2012; C2, 2008). Additionally, an abstract class