Infectious diseases -- new and ancient threats to world health

Infectious and parasitic diseases remain a leading cause of death and disability in developing countries and are re-emerging as a serious health problem in developed countries. Outbreaks of Ebola, dengue hemorrhagic fever, cholera, and bubonic plague have occurred in low-income countries and multidrug-resistant organisms have surfaced throughout the world. Since 1973, over 28 new disease-causing microbes have been identified. This issue of "Population Bulletin" analyzes the impact of factors such as population growth, urbanization, migration, poverty, travel, agricultural practices, climate changes, natural disasters, and medical technology on the resurgence of infectious and parasitic diseases as well as the influence of diseases such as AIDS on population dynamics and socioeconomic development. Most of these diseases could be prevented, cured, or eradicated with known public health measures. National governments can help reduce poverty, step up immunization programs, and lessen the chances of introducing new diseases. Nongovernmental organizations can disseminate preventive knowledge and monitor disease outbreaks. The medical profession can strengthen infection control precautions and institute surveillance of the use of antibiotics and other antimicrobial agents. Since the geographic isolation that used to contain disease outbreaks has been replaced by permeable international borders, the campaign against infectious and parasitic diseases must be global.     

Model Migration Schedules: Three Alternative Linear Parameter Estimation Methods

ABSTRACT

Observed schedules of migration rates exhibit strong regularities in age patterns. These regularities may be captured and represented by a mathematical expression known as the multiexponential model migration schedule. Fitting this function to empirical data requires non-linear regression methods and often some experimentation with alternative initial estimates of the parameters. Simpler, linear methods of estimation are adequate for most applications. These may be carried out with hand calculators or simple spreadsheet-based calculations on the computer. Such methods are studied and appear to perform satisfactorily.     

Perceptions of Blame and Credibility Toward Victims of Childhood Sexual Abuse: Differences Across Victim Age,Victim-Perpetrator Relationship,and Respondent Gender in a Depicted Case

This study investigated victim culpability, credibility, and assault severity in a hypothetical sexual abuse case. A 2 (respondent gender)?×?3 (victim age)?×?3 (perpetrator type) between-subjects design was employed. Members (391) of the U.K. general public read the depiction of a female child assaulted by an adult male perpetrator. Respondents then completed an attributions questionnaire. Findings showed that male respondents were less positive toward victims and considered the victim less credible than female respondents. Younger victims (aged five years) were considered more credible than older children (aged 15 years). Victims of strangers were considered more positively and more credible than victims of someone known to them (their father or a family friend). Suggestions for future work are proposed.     

A reply to Donna Andrew

David M. Gordon, Richard Edwards and Michael Reich, Segmented Work, Divided Workers: The Historical Transformation of Labor in the United States (1982), xii + 288 (Cambridge University Press, Cambridge, £20.00, Paperback £6.95).

Craig R. Littler, The Development of the Labour Process in Capitalist Societies (1982), x + 226 (Heinemann Educational Books £14.50, paperback £6.50).

Charles F. Sabel, Work and Politics: The Division of Labor in Industry (1982), xiii + 304 (Cambridge University Press, Cambridge, £17.50).     

Voluntary Association Membership and Political Participation: an Exploration of the Mobilization Hypothesis*

Survey data from 390 respondents was analyzed to determine the relative effects of organizational involvement, socioeconomic status, and political attitudes on political participation. Two theoretical perspectives were investigated: mobilization theory and selection theory. Both the mobilization and selection perspectives were supported by the data; however, organizational involvement was shown to explain more of the variance in political participation than did social status and political attitudes. The mobilization perspective was further examined to determine if it worked equally well in all types of organizations. We found that the relationship between organizational involvement and political participation was stronger for “instrumental” than for “expressive” groups and for organizations characterized by high, as compared to low, levels of political discussion.     

Police and Psychiatrists: A Case of Professional Dominance?

Drawing on data from a recent study and Freidson's theory of professional dominance, this article considers the contemporary nature of relationships between police officers and psychiatrists. The different strategies used by the two occupational groups in attempting to control the management of a group of patients considered by both to be “dirty work” is explored, as is the “political” agenda of police/psychiatric relations in the context of current mental health policy.     

Parameterized multistate population dynamics and projections

"This article reports progress on the development of a population projection process that emphasizes model selection over demographic accounting. Transparent multiregional/multistate population projections that rely on parameterized model schedules are illustrated [using data primarily from a number of developed countries, particularly Sweden], together with simple techniques that extrapolate the recent trends exhibited by the parameters of such schedules." The author notes that "the parameterized schedules condense the amount of demographic information, expressing it in a language and variables that are more readily understood by the users of the projections. In addition, they permit a concise specification of the expected temporal patterns of variation among these variables, and they allow a disaggregated focus on demographic change that otherwise would not be feasible."     

The internal migration patterns of the foreign-born and native-born populations in the United States: 1975-80 and 1985-90

"The focus of this article is on an examination of the influence of birthplace on the internal migration and spatial redistribution patterns of the foreign-born and native-born populations in the United States during the 1975-80 and 1985-90 periods. The analyses presented here consider the following principal questions: (1) What are the internal migration patterns of the foreign-born population in the United States, and how do they differ from those of the native-born population? (2) How do the relocation choices of various birthplace-specific foreign-born and native-born subpopulations differ from each other? (3) Are the internal migration patterns generating an increased or a decreased geographical concentration of such birthplace-specific subgroups?"     

A proposal for a new screening paradigm and tool called Exercise Assessment and Screening for You (EASY)

The Exercise Assessment and Screening for You (EASY) is a tool developed to help older individuals, their health care providers, and exercise professionals identify different types of exercise and physical activity regimens that can be tailored to meet the existing health conditions, illnesses, or disabilities of older adults. The EASY tool includes 6 screening questions that were developed based on an expert roundtable and follow-up panel activities. The philosophy behind the EASY is that screening should be a dynamic process in which participants learn to appreciate the importance of engaging in regular exercise, attending to health changes, recognizing a full range of signs and symptoms that might indicate potentially harmful events, and becoming familiar with simple safety tips for initiating and progressively increasing physical activity patterns. Representing a paradigm shift from traditional screening approaches that focus on potential risks of exercising, this tool emphasizes the benefits of exercise and physical activity for all individuals.     

Work‐Family Commitment and Attitudes Toward Feminism in Medical Students

The authors examine work—family commitment and attitudes toward feminism in a cross‐sectional, medical student sample (126 women, 145 men). Results indicated no significant gender differences in commitment levels. Third‐year students reported significantly more family commitment than did students in lower years. Women reported significantly more positive attitudes toward feminism than did men. Future research should examine commitment to work and family roles relative to participation in work and family roles and whether medical students have more conservative attitudes toward feminism than do other groups. Reframing multiple role commitments as an opportunity for role integration may help clients identify how work and family can be mutually enhancing and growth‐producing rather than conflictual.