Instrument calculates moments of inertia of complex plane figures

Instrument consisting of a narrow field scanner coupled with a simple preprogrammed computer calculates distributive-area properties of complex or irregular plane figures representing cross sections of structural members. The calculator obtains the properties quickly and with a high degree of accuracy

Adaptive guidance and control for future remote sensing systems

A unique approach to onboard processing was developed that is capable of acquiring high quality image data for users in near real time. The approach is divided into two steps: the development of an onboard cloud detection system; and the development of a landmark tracker. The results of these two developments are outlined and the requirements of an operational guidance and control system capable of providing continuous estimation of the sensor boresight position are summarized

Links between ICT advanced skills teachers and initial teacher training

This report and guidance materials were compiled for the Training and Development Agency for Schools (TDA)Research undertaken at one higher education institution located in West London, UK sought to explore links between ICT Avanced Skills Teachers (AST) and Initial Teacher Training (ITT). The main objective was to capture the perceptions and experiences of leading ASTs in ICT along with those of teacher educators and trainee teachers to identify ways in which collaborative and/or sustainable partnerships might be forged, which enable trainee teachers to gain exposure to cutting edge, best practice of ICT in primary and secondary schools

Micro-geographic risk factors for malarial infection.

BACKGROUND: Knowledge of geography is integral to the study of insect-borne infectious disease such as malaria. This study was designed to evaluate whether geographic parameters are associated with malarial infection in the East Sepik province of Papua New Guinea (PNG), a remote area where malaria is a major cause of morbidity and mortality. METHODS: A global positioning system (GPS) unit was used at each village to collect elevation, latitude and longitude data. Concurrently, a sketch map of each village was generated and the villages were sub-divided into regions of roughly equal populations. Blood samples were taken from subjects in each region using filter paper collection. The samples were later processed using nested PCR for qualitative determination of malarial infection. The area was mapped using the GPS-information and overlaid with prevalence data. Data tables were examined using traditional chi square statistical techniques. A logistic regression analysis was then used to determine the significance of geographic risk factors including, elevation, distance from administrative centre and village of residence. RESULTS: Three hundred and thirty-two samples were included (24% of the total estimated population). Ninety-six were positive, yielding a prevalence of 29%. Chi square testing within each village found a non-random distribution of cases across sub-regions (p < 0.05). Multivariate logistic regression techniques suggested malarial infection changed with elevation (OR = 0.64 per 10 m, p < 0.05) and distance from administrative centre (OR = 1.3 per 100 m, p < 0.05). CONCLUSION: These results suggest that malarial infection is significantly and independently associated with lower elevation and greater distance from administrative centre in a rural area in PNG. This type of analysis can provide information that may be used to target specific areas in developing countries for malaria prevention and treatment

Exchange of information about physical education to support the transition of pupils from primary and secondary school

The purpose of this study was to identify how information about physical education is exchanged between secondary schools and their respective feeder primary schools, what information is exchanged and how this information is used. A secondary purpose was to look at whether there is any relationship between schools engaging in liaison activities and exchanging information about physical education, and between exchanging information and the number of associated secondary schools to which pupils are sent or feeder primary schools from which pupils are received. Questionnaires were sent to 177 secondary and 538 feeder primary schools. Responses from 80 secondary schools and 299 primary schools showed that the highest percentage of teachers exchanged information through written documentation, followed by discussion at cross phase liaison meetings. The type of information exchanged by the highest percentage of teachers was identified as generic information about key stage 2 and 3 of the National Curriculum for Physical Education (NCPE) areas of activity and schemes of work, rather than information about the specific physical education content covered or information about individual pupils, such as levels of attainment or ability. Further, results suggest that information may be used for pastoral purposes and that only a small percentage of teachers used the information exchanged to plan for continuity and progression in the physical education curriculum. There was a significant positive relationship between engagement in liaison activities and information received about the physical education curriculum followed by pupils, but a significant negative relationship for primary teachers between the number of different secondary schools to which pupils' progress and knowledge about the key stage 3 schemes of work that Year 6 pupils will follow in their associated secondary schools. These results are discussed in relation to continuity and progression in physical education in the transfer of pupils from primary to secondary schools

Definition of experimental studies for determining gaseous and particulate cloud environment of manned spacecraft and applications to cometary physics Final report

Cosmic gas environment surrounding manned spacecraf

Social Security: An Investment in Family Protection

When Social Security was passed into law in 1935, it was not intended to be an investment program to which Americans could contribute. Rather, it was established as a risk pool to which all Americans were mandated to contribute in order to insure the presence of a stable safety net. Social Security began in the Great Depression but by 1956 it had evolved into a full-scale family-oriented insurance program that included survivors' benefits. Its intent is to provide families with support for the contingencies that occur throughout the course of life, including disability, retirement and survival of widows and children. Thus, dependent spouses and children of victims of the tragic September 11th terrorist attacks will receive Social Security survivors' benefits.It is amazing to realize that public insurance provided by Social Security to cover disability and death is greater than all private coverage of life and disability, and that it covers some 3 million children as well as older people. In fulfilling its mission, the International Longevity Center studies a variety of systems to meet the needs of people through their life course in the United States and abroad. This Brief explores the Social Security Program in the US

A study of current practice in liaison between primary and secondary schools in physical education

The purpose of this study was to investigate current practice in liaison between primary and secondary schools to promote continuity and progression in physical education during the transfer of pupils from Key Stage 2 to Key Stage 3 and to identify constraints to engaging in liaison activities. A questionnaire was completed by the head of the physical education department in secondary schools in five local education authorities in England that received pupils from primary schools in year 7 (n = 80) and by the physical education coordinator of the primary feeder schools of those secondary schools that responded to the questionnaire (n = 299). Results showed that 32 (43.8%) secondary teachers and 157 (53.4%) primary teachers identified that they had established contacts with their primary feeder schools or associated secondary schools respectively; and 49 (64.5%) secondary teachers but 114 (39.6%) primary teachers identified that currently they were engaged in liaison activities. There was a discrepancy between the percentages of teachers who indicated they had contacts with their primary feeder schools or associated secondary schools respectively, and who indicated they were engaged in liaison activities with them. These results suggested that contacts with and/or engagement in liaison activities between primary and secondary schools were not consistent across schools. A range of constraints for developing effective contacts/liaison activities were identified, with time being identified as the major constraint by both primary and secondary teachers. A range of suggestions for overcoming the constraints were also identified. These results are discussed in relation to findings from studies looking at liaison in other subjects and also in relation to the implications for schools

Modelling the temperature, maturity and moisture content in a drying concrete block

In this paper we continue work from a previous Study Group in developing a model for the maturation of concrete. The model requires equations describing the temperature, moisture content and maturity (or amount of cement that has reacted with the water). Non-dimensionalisation is used to simplify the model and provide simple analytical solutions which are valid for early time maturation. A numerical scheme is also developed and simulations carried out for maturation over one day and then two months. For the longer simulation we also investigate the effect of building the block in a single pour or two stages