Infant and child observation as preparation for social work practice

This paper argues that infant and child observation is not only valuable as part of social work training for work with children and families but that it has a wider value in equipping workers with assessment skills relevant in all areas of social work, including care management. It describes the introduction of infant and child observation as a required component of the BA/Diploma in Social Work at The University of Reading and the effect on students' learning and their practice skills. It shows how child observation festers the development of reflective practice, enabling workers to look beyond the presenting problem and to understand the situation as a whole. The resulting intervention is then more likely to be appropriate in meeting a client's needs.     

Overcoming Liability Concerns in Vaccine Trials Involving Pregnant Women

Without the protection of vaccines, the health of pregnant women may be compromised. But assessing the safety and efficacy of vaccines in pregnancy requires research in pregnancy. Furthermore, vaccinating women while they are pregnant may convey immunity to the fetus in utero, but assessing this possible benefit of maternal immunization also requires research. This article argues that one factor inhibiting vaccine research involving pregnant women is that vaccine manufacturers fear incurring liability if they fund such research. We argue that vaccine research in pregnancy can be ethical, and we explore some methods for overcoming vaccine manufacturers' fear of liability.     

Are substance use prevention programs more effective in schools making adequate yearly progress? A study of Project ALERT

This exploratory study sought to determine if a popular school-based drug prevention program might be effective in schools that are making adequate yearly progress (AYP). Thirty-four schools with grades 6 through 8 in 11 states were randomly assigned either to receive Project ALERT (n = 17) or to a control group (n = 17); of these, 10 intervention and nine control schools failed to make AYP. Students completed three self-report surveys. For lifetime cigarette use and 30-day alcohol use, Project ALERT was more effective in schools that made AYP. However, in these schools, Project ALERT negatively affected students' lifetime marijuana use. This study provided some preliminary evidence that prevention programming may not work as well in poorer performing schools; however, further exploration is needed.     

Child care subsidies and childhood obesity

In this paper, we study the impact of child care subsidy receipt on low-income children’s weight outcomes in the fall and spring of kindergarten using data from the Early Childhood Longitudinal Study, Kindergarten Cohort. Our results suggest that subsidy receipt is associated with increases in BMI and a greater likelihood of being overweight and obese. Using quantile regression methods, we find substantial variation in subsidy effects across the BMI distribution. Specifically, child care subsidies have no effect on BMI at the lower end of the distribution, inconsistent effects in the middle of the distribution, and large effects at the top of the distribution. Our results point to the use of non-parental child care, particularly center-based services, as the key mechanism through which subsidies influence children’s weight outcomes.     

Honeynet games: a game theoretic approach to defending network monitors

A honeynet is a portion of routed but otherwise unused address space that is instrumented for network traffic monitoring. It is an invaluable tool for understanding unwanted Internet traffic and malicious attacks. We formalize the problem of defending honeynets from systematic mapping (a serious threat to their viability) as a simple two-person game. The objective of the Attacker is to identify a honeynet with a minimum number of probes. The objective of the Defender is to maintain a honeynet for as long as possible before moving it to a new location within a larger address space. Using this game theoretic framework, we describe and prove optimal or near-optimal strategies for both the Attacker and the Defender. This is the first mathematically rigorous study of this increasingly important problem on honeynet defense. Our theoretical ideas provide the first formalism of the honeynet monitoring problem, illustrate the viability of network address shuffling, and inform the design of next generation honeynet defense systems.     

Evolutionary Theory and Historical Fertility Change

Probably no issue divides social scientists and natural scientists more demonstrably than their attitudes on the value of Darwin's theory of evolution by natural selection. The present essay suggests the role that Darwinian theory can play in the study of human fertility. After examining the nature of Darwinian theory, the essay considers research carried out on fertility by biologists and anthropologists with methods based on it and possible reformulations of demographic methods and analyses that could benefit fertility research. It ends with suggestions for further research to explore the value of Darwinian approaches to demographic issues.     

Foster care and the educational attainment of Jamaican children

Though informal fostering, the placement of children in the care of relatives or friends, is common in developing countries little research has been performed to ascertain its implications for the welfare of foster children. Previous studies on fostering are generally concerned with the circumstances that result in fostering. We investigate the relationship between foster care and educational opportunities and achievement. The relationship between fostering and a childs educational achievement is crucial because education has a strong influence on the long-term welfare of the individual. Our findings are unique in that we redefine foster care to exclude children living with their biological father. This redefinition results in significantly different findings on the effect of foster care on the educational investment of the household towards foster boys. Under the new definition foster boys are significantly more likely to be educationally disadvantaged.     

Migration and Intergenerational Replacement in Europe

There are long‐standing concerns over low fertility levels in Europe and an increasingly important debate on the extent to which migration can compensate for below‐replacement fertility. To inform this debate, a wide array of indicators have been developed to assess the joint influence of fertility, mortality, and migration on birth replacement and intergenerational replacement. These indicators are based on various models and assumptions and some are particularly data demanding. In this article we propose a simple method to assess how far migration alters the extent of replacement for a birth cohort as it ages. We term the measure the overall replacement ratio (ORR). It is calculated by taking the size of a female birth cohort at selected ages divided by the average size of the cohorts of mothers in the year of birth. We present estimates of the ORR for a range of European countries representing different replacement regimes. We demonstrate that for many countries net migration has become a key factor in their population trends during the last few decades.     

An automatic-democratic approach to weight setting for the new human development index

Perhaps the most difficult aspect of constructing a multi-dimensional index is that of choosing weights for the components. This problem is often bypassed by adopting the ‘agnostic’ option of equal weights, as in the human development index. This is an annual ranking of countries produced by the United Nations Development Programme based on life expectancy, education, and per capita gross national income. These three dimensions are now aggregated multiplicatively. Whatever weights (exponents) are chosen for these dimensions, some nations will feel disadvantaged. To avoid the use of arbitrary weights, we propose for consideration a two-step approach: (1) find the most advantageous set of weights for each nation in turn, and (2) regress the associated optimal scores on the underlying indicators to find a single weight set. This approach has the properties of non-subjectivity, fairness, and convenience. The result is that the highest weight is placed on the life expectancy dimension.