Examining the structure of awareness and perceptions of groundnut aflatoxin among Ghanaian health and agricultural professionals and its influence on their actions

This study uses a modified health belief model (HBM) within a socio-economic framework to evaluate the influence of awareness and knowledge on actions to reduce aflatoxin (AF) contamination in groundnuts (peanuts). Data were collected in 2002 through a self-administered questionnaire from a sample of 367 individuals. Socio-economic factors affecting perceptions, awareness, knowledge, and action were examined using structural equation modeling. The perceived benefits of good quality groundnuts and/or groundnut products were the most important determinants of awareness and knowledge of AF among agricultural and health professionals in Ghana. Awareness, in turn, had a significant causal effect on the professionals’ decisions to take actions to increase the level of awareness of AF in the society. Demographic factors, such as gender and level of education significantly influenced knowledge of AF and the perception of the benefits of good quality groundnut. Type of profession had a significant influence on awareness and perceived seriousness of the AF problem. Education was a significant determinant of awareness of AF in groundnuts. The study generates important information for policy decision making when considering resource allocation to reduce food contamination in developing economies.     

Understanding the demographic implications of climate change: estimates of localized population predictions under future scenarios of sea-level rise

Significant advances have been made to understand the interrelationship between humans and the environment in recent years, yet research has not produced useful localized estimates that link population forecasts to environmental change. Coarse, static population estimates that have little information on projected growth or spatial variability mask substantial impacts of environmental change on especially vulnerable populations. We estimate that 20 million people in the United States will be affected by sea-level rise by 2030 in selected regions that represent a range of sociodemographic characteristics and corresponding risks of vulnerability. Our results show that the impact of sea-level rise extends beyond the directly impacted counties due to migration networks that link inland and coastal areas and their populations. Substantial rates of population growth and migration are serious considerations for developing mitigation, adaptation, and planning strategies, and for future research on the social, demographic, and political dimensions of climate change.     

A Comparative Analysis of Propositions Describing Social Movement Organizations*

Natural history, observational, and interview data from a study of two anti-pornography crusades and the social movement organizations which created and directed them are used to assess nine propositions formulated by Zald and Ash (1966) concerning the structure and dynamics of social movement organizations. The Zald-Ash propositions were formulated from the literature on national, established social movement organizations. This paper explores the applicability of the propositions to those organizations which are small and emerging. The propositions are generally supported. Discrepancies are accounted for by the significant influence of leadership orientation, goal specificity, and incentive structure in determining other structural and dynamic characteristics of small or emerging social movement organizations.     

Financial Penalties Under the Temporary Assistance for Needy Families Program: Policy Discourse and Strategies for Reform

Many families did not leave welfare of their own accord but instead were forced off, sanctioned, for failure to conform to new, strict requirements (Bloom & Winstead, 2002). Studies of leavers indicate that many of these leavers are among the families that do not receive needed health insurance, food stamps, and child care assistance for which they remain eligible (Loprest, 2001; Zedlewski & Gruber, 2001). Sanctioned families are less likely to do well after leaving welfare compared to other leavers (Goldberg & Schott, 2000). As part of TANF reauthorization, Congress should prohibit states from sanctioning if they have not met certain requirements: conducted an assessment, made accommodations for people with physical/mental impairments or other barriers, and instituted strong pre-sanction and post-sanction procedures.     

A variable selection approach to monotonic regression with Bernstein polynomials

One of the standard problems in statistics consists of determining the relationship between a response variable and a single predictor variable through a regression function. Background scientific knowledge is often available that suggests that the regression function should have a certain shape (e.g. monotonically increasing or concave) but not necessarily a specific parametric form. Bernstein polynomials have been used to impose certain shape restrictions on regression functions. The Bernstein polynomials are known to provide a smooth estimate over equidistant knots. Bernstein polynomials are used in this paper due to their ease of implementation, continuous differentiability, and theoretical properties. In this work, we demonstrate a connection between the monotonic regression problem and the variable selection problem in the linear model. We develop a Bayesian procedure for fitting the monotonic regression model by adapting currently available variable selection procedures. We demonstrate the effectiveness of our method through simulations and the analysis of real data.     

The Beginnings of Child Welfare Research in the United States

The author reviews the beginnings of child welfare research in the United States with an emphasis on the contributions of several outstanding individuals as well as the conflict between hereditarian and reformist values and attitudes. Both hereditarian and reformist values and attitudes had tremendous influence on the development of child welfare research as well as the helping professions.     

Reviews

R. H. Hilton, The English Peasantry in the Later Middle Ages (1975), 256 (Clarendon Press, Oxford, £6.50).

Colin Platt, The English Medieval Town (1976), 219 (Seeker and Warburg, £6.00).

James Axtell, The School Upon A Hill. Education and Society In Colonial New England (1974), xxi+298 (Yale University Press, New Haven, £7.50).

Kenneth A. Lockridge, Literacy in Colonial New England. An Enquiry Into The Social Context of Literacy in the Early Modern West (1974), 164 (W. W. Norton and Co., New‐York, $6.95).

Jean‐Claude Perrot, Genèse d'une ville moderns. Caen au XVIII'siècle (1975), 2 vols, 1157 (Mouton: Paris, the Hague, 250 fr.).

Douglas Hay, Peter Linebaugh and E. P. Thompson (eds.), Albion's Fatal Tree (1975), 344+15 illustrations (Allen Lane, £7.50).

E. P. Thompson, Whigs and Hunters (1975), 300+17 illustrations (Allen Lane, £6.50).

Arthur E. Imhof (ed.), Historische Demographie als Sozialgeschichte. Giessen und Umgebung (1975), 2 vols, 626+495 (Historische Kommission für Hessen, Darmstadt und Marburg, DM 48).

Historical Demography as Social History. Giessen and Surrounding District.¹

Alan Forrest, Society and Politics in Revolutionary Bordeaux (1975), xi+300 (Oxford University Press, £8.00).

Richard Hunter and Ida Macalpine, Psychiatry for the Poor (1974), 264 (Dawsons of Pall Mall, £4.50, paperback £1.50).

Vieda Skultans, Madness and Morals. Ideas on Insanity in the Nineteenth Century (197 5), xv+260 (Routledge and Kegan Paul, £5.50).

Thomas S. Szasz, The Age of Madness, The History of Involuntary Mental Hospitalization Presented in Selected Texts (1973), xxi+372 (Routledge and Kegan Paul, £5.95).

Harald Runblom and Hans Norman (eds.), From Sweden to America: a History of the Migration (1976), 391 (University of Minnesota Press, Minneapolis, and University of Uppsala).

Charlotte Erickson (ed.), Emigration from Europe 1815–1914: Select Documents (1976), 320 (A. and C. Black, £6.50).

T. J. Nossiter, Influence, Opinion and Political Idioms in Reformed England: Case Studies from the North‐East, 1832–1874 (1975), xii+255 (Harvester, £7.50).

Robert J. Bezucha, The Lyon Uprising of 1834: Social and Political Conflict in the Early July Monarchy (1974), xviii+271 (Harvard University Press, Cambridge, Massachusetts, £6.25).

Lawrence Schofer, The Formation of a Modern Labour Force. Upper Silesia, 1865–1914 (1975), xvi+213 (University of California Press, Berkeley, Los Angeles and London, £7.80).

Léon Poliakov, The History of Anti‐Semitism. Volume III. From Voltaire to Wagner (1975), x+582 (Routledge and Kegan Paul, no price given).

Reinhard Rürup, Emanzipation und Antisemitismus. Studien zur ‘Judenfrage’ der bürgerlichen Gesellschaft (1975), 208 (Vandenhoeck and Rupprecht, Göttingen, paperback DM 28).

Uriel Tal, Christians and Jews in Germany. Religion, Politics and Ideology in the Second Reich, 1870–1914 (1975), 359 (Cornell University Press, Ithaca and London, £10.70).

Richard S. Levy, The Downfall of the Anti‐Semitic Political Parties in Imperial Germany (1975), 335 (Yale University Press, New Haven and London, no price given).

Andrew G. Whiteside, The Socialism of Fools. Georg Ritter von Schönerer and Austrian Pan‐Germanism (1975), x+404 (University of California Press, Berkeley, Los Angeles and London, £15.75).

Paul Thompson, The Edwardians: the remaking of British society (1975), xi+382 (Weidenfeld and Nicolson, £10.00).

Marc Fried, The World of the Urban Working Class (1975), x+410 (Harvard University Press, Cambridge, Massachusetts, £6.50).

Philip Gabriel Eidelberg, The Great Rumanian Peasant Revolt of 1907 (1974), xii+260 (E. J. Brill, Leiden, 64 guilders).

Peter H. Mcrkl, Political Violence under the Swastika: 581 Early Nazis (1975), xiv+735 (Princeton University Press, Princeton, $17.50, paper $6.30).     

A Perspective on Dioxin Emissions from Municipal Solid Waste Incinerators

This paper discusses the following key issues concerning human exposure to dioxins and furans emitted from typical, modern MSW incinerators: (1) Are MSW incinerators the major source of PCDD/PCDF input into the environment? (2) Are environmental concentrations around MSW incinerators substantially elevated relative to background levels? And (3) are MSW incinerators the major source of human exposure to PCDDs and PCDFs? Current scientific evidence indicates that (1) combustion sources in general (including steel mills, copper smelting plants, motor vehicles, pulp and paper mills, and MSW incinerators) are major sources of PCDD/PCDF input in the environment; (2) environmental concentrations of PCDDs and PCDFs around operating MSW incinerators are not substantially elevated; and (3) 99% of human exposure to PCDDs and PCDFs is from background contamination, even for individuals living near a modern MSW incinerator.     

Religion and the Rainbow Struggle: Does Religion Factor Into Attitudes Toward Homosexuality and Same-Sex Civil Unions in Brazil?

The provision of civil liberties to LGBT persons has become part of a global movement in societies across the world. In Brazil, a recent judicial ruling for the first time established the right for homosexual couples to enter into civil unions, despite the presence of widespread disapproval of homosexuality among the population and opposition from prominent religious groups. Picking up on this issue, the following study examines whether religion may factor into the attitudes Brazilians hold toward homosexuality and same-sex civil unions. Using data from the Brazilian Social Research Survey, we find that the most restrictive views toward homosexuality and the strongest opposition to same-sex civil unions are most prevalent among devoted followers of historical Protestant, Pentecostal, and Catholic faith traditions, whereas adherents of Afro-Brazilian and spiritist religions, as well as those with no religious commitment, are inclined to assume a more tolerant moral posture toward such issues. The findings point to religion as a potential influence in future public policy initiatives and social movements involving LGBT issues in Brazil.