Thesis (M.S.) -- Brigham Young University. Dept. of Statistics, 2000. / Includes bibliographical references (p. 115-120).

Thesis advisor: James E. Lubben / Productive aging is a new and evolving conceptual model that emphasizes the antecedents and consequences of productivity in later life. Proponents of productive aging claim that productive activity in later life is associated with a number of benefits for individuals, communities, and societies, but this assumption has not been widely tested at the country level. In the context of an adapted model of productive aging, the present study identifies the cross-national predictors of and relationship between one form of productivity (viz., labor force participation) and one aspect of well-being (viz., longevity) among older adults. Random effects models with pooled cross-sections and path analysis were used to analyze potential relationships with data from several international data sources. The complete cross-national longitudinal dataset consists of variables measured at five time points or during intervals centered at these time points (i.e., 1980, 1985, 1990, 1995, and 2000) for each of thirty countries that belong to the Organisation for Economic Co-operation and Development. The present study makes one particularly important and new contribution to the cross-national literature on productivity and longevity; the study suggests that work in later life strongly influences life expectancy among older adults, but that some important gender differences should be noted. The present study also suggests that public policy plays a very important role in country level labor force participation rates and life expectancy. More specifically, higher levels of public spending on social issues are associated with lower rates of labor force participation and higher life expectancies. Finally, the present study confirms that the adapted model of productivity provides a solid foundation for cross-national analyses of labor force participation and life expectancy, but highlights the importance of analyzing male and female behavior and outcomes separately. / Thesis (PhD) — Boston College, 2010. / Submitted to: Boston College. Graduate School of Social Work. / Discipline: Social Work.

There have been significant changes in the clinical management of cerebral palsy (CP) during the past 2 decades. Gastrostomy tubes and nutritional supplements have been paramount in enhancing the life expectancy of those with CP. The literature shows that as many as 90% of children with CP can now expect to live to adulthood.1-4 As a result, CP is no longer considered to be a condition limited to childhood. However, emerging populations pose new challenges to those who provide health care support. This article presents an overview of what we know about the health care needs of adults with CP. / From the Laurentian University, Sudbury, Ontario; The Hospital for Sick Children, Toronto, Ontario; and The Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada. / Dr Young is supported by a Canadian Institutes of Health Research Canada Research chair.

Telomeres are located at the ends of all eukaryotic chromosomes and provide the stability of chromosomes. They consist of simple tandem hexametric repeats and play an important part in cell longevity. In human lymphocytes, telomeres shorten progressively with age. Mental retardation (MR) is a disorder with intelligence quotient below average (IQ < 70) and impairment in adaptive skills. IQ by Weschsler Adult Intelligence Scales revised (WAIS-R) appears to peak in the of 30-34 and thereafter decline gradually. Life expectancy is defined as the number of years remaining to be lived. The overall increase in life expectancy indicates an improvement in longevity. The life expectancy of MR patients is shorter than that of the general population. The purpose of this study is to predict the relationship between telomere length and IQ in normal control as well as to analyze the differences among the average telomere length for the control and subgroups of MR cases. Fifty-nine patients who met the fourth edition of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria for mental retardation were included in this study. According to the degree of intellectual impairment, MR patients were divided into 4 types: mild, moderate, severe, and profound. Fifty-two female nursing students aged 19-21 were recruited as normal controls. DNA was isolated from their lymphocytes. Telomere length was analyzed by Southern blot hybridization. The length was calculated by the Photo CaptMw Version 99.03 software. Correlation between the telomere length and IQ in normal control was performed by the Pearson product-moment correlation. One-way ANOVA was used to test if any differences existed among the normal, mild, moderate, severe, and profound MR. Analyses displayed that there were no correlations between telomere length and IQ including PIQ(r=-0.001; p=0.922), VIQ(r=-0.033; p=0.817), TIQ(r=-0.026, p=0.857), and no difference existed among the normal and subgroups of MR cases. Results obtained from this study indicated that life expectancy of MR patients may approximate to that of the general population if live in the well environment.

The prediction of the expected long-term performance of concrete exposed to sewage and similar materials can be difficult as it is affected by a large number of parameters. In addition, the deterioration process in concrete is generally slow. The focus of the study was to ascertain the life expectancy of concrete septic tanks located in rural Victoria. In developing the accelerated test method, ASTM C 192, ASTM C 452, ASTM C 1293 and ASTM C 109 standard procedures were adopted wherever possible. From the analysis of mass change data after 350 days, it was found that the mass change rate for concrete in sulphate solutions increases with the increase of concentration of Na2SO4 solution. The weights of the samples in Na2SO4 solution increased with time, whereas the control specimens lost weight as a result of heating cycles. The probable reason for weight increase in Na2SO4 solution was hypothesized as the formation of gypsum (CaSO4.2H2O) and ettringite (3CaO.Al2O.3CaSO4.32H2O), which is confirmed from microstructural analysis. The rate of weight gain was higher at the beginning and reduced with time. The stronger the concentration of Na2SO4 the stronger was the weight gain or expansion of mass. All the samples in sulphate solutions attained their maximum weight at around 250 days. For the specimens in sulphuric acid solutions weight loss was observed to be higher for higher concentrations. The lower the pH of the acidic solutions, the larger was the weight loss. The weight loss of specimens in acidic solutions exceeded the control specimen after 250 days. The reason for the loss of weight of the samples in sulphuric acid may be the decalcification of C-S-H gel within the concrete, and as a consequence the loss of cementitious structure. Comparison of the corrosion of concrete and also microstructural examination of field samples confirmed that the deterioration mechanism is similar to that observed in the laboratory. The accelerated testing adopted here offers a realistic method of predicting the deterioration of septic tanks under biogenic sulphuric acid corrosion. Two equations have been proposed to predict deterioration due to sulphate attack and sulphuric acid attack as mass loss (or gain) with time.

Thesis (Ph. D.)--University of Chicago, Dept. of Economics, June 2002. / Includes bibliographical references. Also available on the Internet.

Reliable estimates for differences in life expectancy (LE) by socio-economic position (SEP), that can be assessed in an international context and are comprehensive in terms of considering different SEP dimensions, are missing for the German population so far. The aim of the present study is to fill this gap by providing estimates for differences in LE by education, household income, work status and vocational class. The lack of national mortality data by SEP required an innovative methodological approach to estimate LE from survey data with a mortality followup. The main strengths of the method are the low demand on the data, its simple applicability and the estimation of a set of age-specific probabilities of dying. We employed the method to the German Life Expectancy Survey and estimated period life tables for 45 male and 32 female SEP subpopulations. The results show striking differences in LE across all analysed SEP indicators. Among men, LE at age 40 ranges by more than five years between the lowest and highest household income quartiles, more than six years between individuals with low and high education, around ten years across the work status groups, and almost 15 years across the vocational classes. The proportion of those who reach the classic pension age of 65 years also varies considerably, as does the remaining LE at this age. The corresponding differences among women are smaller, yet still notable. The results yield an interesting finding for the ongoing discussion about the various consequences of an increased pension age. Moreover, they provide policy-makers, doctors, researchers and public health workers with insights into Germany's most disadvantaged SEP subpopulations and the potential extent of their disadvantages in terms of longevity and mortality.

Background: Throughout industrialized countries, tobacco consumption is seen as the predominant driver of both the trend and the extent of gender differences in life expectancy. However, several factors raise doubts to this generalization. We hypothesize that the impact of smoking on the gender gap is context-specific and differs between populations. Methods: We decompose the gender differences in life expectancy into fractions caused by smoking and other non-biological factors for 53 industrialized countries and the period 1955-2009 to assess the significance of smoking among the causes that can be influenced by direct or indirect interference. Results: The trend of the gender gap can indeed be attributed to smoking in most populations of the western world. However, with regard to the overall extent of male excess mortality, smoking is the main driver only in the minority of the studied populations. While the impact of smoking to gender differences in life expectancy declines in all populations, the contribution of other non-biological factors is in most cases higher at the end than at the beginning of the observation period. Conclusions: Over-generalized statements suggesting that smoking is the main driver of the gender gap in all populations can be misleading. The results of this study demonstrate that - regardless of the prevailing effect of smoking - many populations have still remarkable potentials to further narrow their gender gaps in life expectancy. Although measures to further reduce the prevalence of tobacco consumption must be continued, more attention should be directed to the growing importance of other non-biological factors.

No description available.

The aim of this master thesis is to analyze the influence of non-health factors on quality of life in member countries of the European Union. For the analysis, economic and developmental variables were used. The master thesis begins with analysis of life expectancy in the world due to quality of life directly affecting life expectancy. The next part is devoted to the analysis of the influence of GDP on quality of life and correlation between single dimensions of the Human Development Index. The Health index, Inequality-adjusted income index, Expenditure on public health and GNI per capita PPP were analyzed in order to illustrate their influence and importance in provision of quality of life. Unemployment of the age group 55+ and out-of-pocket spending were analyzed to demonstrate their influence on quality of life and life expectancy. Pension systems and retirement age were analyzed with connection to ageing of the population and fiscal problems arising from decreased fertility. Gender inequality is analyzed, drawing adverse consequences of a more equitable, but not a long-term oriented society. As a result of this master thesis, the conclusion was drawn in form of a Quality of life dilemma diagram. The diagram consists of all the variables analyzed in the master thesis displaying positive, negative and likely positive relationships between variables and quality of life. In the conclusion, the problem of sustainability of public finances, welfare state and competitiveness caused by longevity and low fertility affecting future quality of life in the European countries is summed up. The finding of this thesis is that quality of life is a very complex issue and in order to achieve a sustainable quality of life, all the variables have to be wisely governed. Short-term unbalanced improvements in quality of life will very likely retaliate in terms of deterioration of other variables in the future, pulling quality of life down.