Adult mortality among the descendants of immigrants in England and Wales: does a migrant mortality advantage persist beyond the first generation?

Little is known about mortality among descendants of immigrants in western host countries because many descendants have not yet reached the ages of high mortality. The aim of this paper is to investigate whether the migrant mortality advantage recently observed among immigrants in England and Wales persists, converges to levels of the White England and Wales-born population or reverses among their descendants. Survival analysis is used to study mortality among over 500,000 individuals in a large, longitudinal dataset (Office for National Statistics Longitudinal Study). A recent update to this data provides a longer time series with an older sample of descendants to study. The analysis finds that, as a combined group, the descendants of immigrants have higher mortality than immigrants and White England and Wales-born. After adjusting for socioeconomic characteristics, mortality among descendants attenuates to the mortality level among the White England and Wales-born but remains high relative to immigrants. Analysis by ethnic minority group suggests there are important differences in mortality among descendants, particularly in the persistent high mortality among the descendants of Black Caribbeans. However, the age structure among descendants is still young and the estimates for ethnic minority sub-groups may not be robust. We await the further ageing of descendants to confirm or challenge these interesting sub-group findings by ethnicity.     

Gaussian-based kernels

We derive a class of higher-order kernels for estimation of densities and their derivatives, which can be viewed as an extension of the second-order Gaussian kernel. These kernels have some attractive properties such as smoothness, manageable convolution formulae, and Fourier transforms. One important application is the higher-order extension of exact calculations of the mean integrated squared error. The proposed kernels also have the advantage of simplifying computations of common window-width selection algorithms such as least-squares cross-validation. Efficiency calculations indicate that the Gaussian-based kernels perform almost as well as the optimal polynomial kernels when die order of the derivative being estimated is low.     

Acclimation Effects on the Supreme Court of Canada: A Cross‐Cultural Examination of Judicial Folklore*

Objective. Few public law theories developed to understand the decision making of U.S. courts have been examined in different cultural settings. This study examines the applicability of the “freshman effects” theory in the context of the Canadian Supreme Court. Methods. The article uses analysis of variance tests to examine changes in the voting and authorship patterns of 15 Canadian Supreme Court Justices during the Laskin, Dickson, and Lamer Court periods (1973–1999). Results. We find very little evidence of acclimation effects on the Canadian Supreme Court. However, through the Chief Justice's power to compose decision panels, Canadian justices in their first full year of service are assigned significantly fewer cases than in subsequent years of their career. Thus, Canadian justices are given time to acclimate to the high court through a lower workload, a luxury not afforded to U.S. justices. Conclusions. Theories of public law adopted to understand U.S. courts may be limited in their generalizability beyond the U.S. setting because of the institutional and political forces that shape judicial decision making in other courts.     

Genetic Diversity of Invasive Species in the Great Lakes Versus Their Eurasian Source Populations: Insights for Risk Analysis

Combining DNA variation data and risk assessment procedures offers important diagnostic and monitoring tools for evaluating the relative success of exotic species invasions. Risk assessment may allow us to understand how the numbers of founding individuals, genetic variants, population sources, and introduction events affect successful establishment and spread. This is particularly important in habitats that are "hotbeds" for invasive species--such as the North American Great Lakes. This study compares genetic variability and its application to risk assessment within and among three Eurasian groups and five species that successfully invaded the Great Lakes during the mid 1980s through early 1990s; including zebra and quagga mussels, round and tubenose gobies, and the ruffe. DNA sequences are compared from exotic and native populations in order to evaluate the role of genetic diversity in invasions. Close relatives are also examined, since they often invade in concert and several are saline tolerant and are likely to spread to North American estuaries. Results show that very high genetic diversity characterizes the invasions of all five species, indicating that they were founded by very large numbers of propagules and underwent no founder effects. Genetic evidence points to multiple invasion sources for both dreissenid and goby species, which appears related to especially rapid spread and widespread colonization success in a variety of habitats. In contrast, results show that the ruffe population in the Great Lakes originated from a single founding population source from the Elbe River drainage. Both the Great Lakes and the Elbe River populations of ruffe have similar genetic diversity levels--showing no founder effect, as in the other invasive species. In conclusion, high genetic variability, large numbers of founders, and multiple founding sources likely significantly contribute to the risk of an exotic species introduction's success and persistence.     

Misdirection on the road to Shangri-La

Will life expectancy in the United States rise or fall in this century? The implications of either scenario are far reaching. We contend that the rise of childhood obesity in the United States in the past three decades has been so dramatic that it will soon lead to higher than expected death rates at middle ages and a possible decline in life expectancy by midcentury. The most detrimental health and longevity effects will not be seen for decades--a phenomenon that cannot be detected by current methods used to forecast life expectancy or estimate the number of deaths currently attributable to obesity. This scenario contrasts sharply with the views of mathematical demographers who generate forecasts by relying on the assumption that the U.S. pattern of longevity will follow that of other longer lived nations and on the extrapolation of historical trends in life expectancy into the future.     

Communication in the psychiatric halfway house and the double bind

The psychiatric halfway house is a partial institution whose prime function is to aid individuals to move gradually from the structured existence of the psychiatric hospital ward to the independence of autonomous living. As a social service agency interacting with community services, this facility often encounters unanticipated obstacles which hinder goal attainment for its clients. The problem we address is one such variable: the mixed message. It is of significant importance because it is often a product of unconscious behavior and is frequently cited as instrumental in the etiology of schizophrenia. Suggestions are offered as methods of averting mixed messages in both the intra-and interagency spheres.The authors wish to dedicate this article to the memory of Harry H. Moorhead, M.D.     

Avoiding the valley of death in educating strategists

Billions of dollars and hundreds of millions of hours are invested every year in executive education. However, much of this investment dies in a familiar “Valley of Death” (VoD) wherein what is learned in the classroom is not applied when the strategist returns back to work. Based on 30 in-depth interviews and live observation, we investigate the architecture of an executive education program designed to avoid the VoD. In the observed program, senior partners of a strategy consulting firm, and their key strategist clients, are brought together to co-learn strategy associated with scenario planning, and, at the same time, improve their ongoing business relations. We find that adopting a “paired learning structure” and utilizing “live case content” results in “group-level co-learning” (or the co-production of knowledge) that, participants report, avoids the VoD. This research contributes to the scholarship on learning architecture in executive education by establishing linkages to the literature on client-partner relationships, modelling the student, and service co-production in knowledge-intensive organizations, and, in the end, provides a blueprint that professional service firms and business schools, seeking to produce more value for their participants, can jointly emulate.     

Bet Anywhere,Anytime: An Analysis of Internet Sports Bettors’ Responses to Gambling Promotions During Sports Broadcasts by Problem Gambling Severity

Promotions for online sports betting during televised sports broadcasts are regularly viewed by millions of Australians, raising concerns about their impacts on vulnerable groups including at-risk and problem gamblers. This study examined whether responses to these promotions varied with problem gambling severity amongst 455 Australian Internet sports bettors participating in an online survey. Results indicated that young male Internet sports bettors are especially vulnerable to gambling problems, particularly if they hold positive attitudes to gambling sponsors who embed promotions into sports broadcasts and to the promotional techniques they use and this heightens the risk that alluring messages contribute to excessive gambling. As problem gambling severity increased, so too did recognition that these promotions have impacted negatively on their sports betting behaviour. Because a plethora of sports betting brands and promotions are now heavily integrated into sports coverage, social marketing efforts are needed to offset their persuasive appeal and counter the positive attitudes towards them that appear linked to excessive gambling amongst Internet sports bettors.