1,967 research outputs found

    The inequality of maternal health in urban sub-Saharan Africa

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    Numerous studies document the urban poor disadvantage in child health conditions in African cities. This study uses DHS data from 23 countries in sub-Saharan Africa to examine whether the urban poor experience comparable disadvantages in maternal health. The results show that although the urban poor on average receive better antenatal and delivery care than rural residents, they consistently have poorer maternal health indicators than the urban non-poor. Further analyses based on a multilevel approach reveal significant variations in urban maternal health inequalities across countries of sub-Saharan Africa. The urban poor disadvantage is more pronounced in countries with better average maternal health indicators, where the urban poor tend to be even worse off than rural residents

    The impact of rural-urban migration on child survival

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    Large rural-urban child mortality differentials in many developing countries suggest that rural families can improve their children’s survival chances by leaving the countryside and settling in towns and cities. This study uses data from Demographic and Health Surveys in 17 countries to assess the impact of maternal rural-urban migration on the survival chances of children under age two in the late 1970s and 1980s. Results show that, before migration, children of migrant women had similar or slightly higher mortality risks than children of women who remained in the village. In the two-year period surrounding their mother’s migration, their chances of dying increased sharply as a result of accompanying their mothers or being left behind, to levels well above those of rural and urban non-migrant children. Children born after migrants had settled in the urban area, however, gradually experienced much better survival chances than children of rural non-migrants, as well as lower mortality risks than migrants’ children born in rural areas before migration. The study concludes that many disadvantaged urban children would probably have been much worse off had their mothers remained in the village, and that millions of children’s lives may have been saved in the 1980s as a result of mothers moving to urban areas

    Membrane protein-lipid hydrogen bonding: evidence from protein kinase C, diglyceride, and tumor promotors

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    AbstractMembrane-bound proteins owe their retention and conformation in the lipid bilayer to hydrophobic peptide domains. Additional fixation, by protein-lipid hydrogen bonding, has been suggested, and recent reports on protein kinase C activation by diacylglycerol (DG) provide an unambiguous model for such bonding. The sn-1,2-diacylglycerol appears to donate a hydrogen bond from the sn-3 hydroxyl to the enzyme and to receive two hydrogen bonds, in the sn-1 and sn-2 ester CO groups, from the enzyme. This arrangement is confirmed in phorbol ester, a competitive inhibitor of DG for the kinase. This tumor promotor has a nearly identical spatial arrangement of hydrogen bond donor (9α-OH) and acceptors (12 and 13 ester CO); so have two other tumor promotors, teleocidin and aplysiatoxin. There are reasons to believe that protein kinase C is not the only protein that is bound to membrane lipids by hydrogen bonding, and such bonding will have to be considered in membrane-associated events such as fusion, cross-membrane transport, or anesthesia

    The role of strategic partnerships in the internationalisation of small born global firms

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    © 2018, Cracow University of Economics. All rights reserved. Objective: The article discusses motives driving the internationalisation of small born global firms and explores the role strategic partnerships play in the process. It argues that born globals are forced into international markets soon after their foundation due to limited domestic market capacity. Furthermore, they attempt to prevent competition on international markets and secure first mover advantages. Research Design & Methods: Based on primary data gathered in the course of interviews with founders and senior managers of British born globals operating in different industry sectors, the article offers new insights into the role of partnerships during early stages of internationalisation. Findings: The article reveals that beside serendipitous opportunities, the motivation and opportunity recognition of the founder/manager play a vital role in firms’ early internationalisation. Strategic partnerships appear to help born globals in overcoming resource constraints and their liability of newness and smallness. Also other factors, such as increasing brand recognition and the enhancement of the firm’s credibility motivate born globals to engage in strategic partnerships from an early stage. Implications & Recommendations: The research results lead to a conclusion that strategic partnerships are suitable only for a particular period of time, which begins shortly after the firm’s inception and ends when the born global firm becomes more established. Contribution & Value Added: The article provides novel understanding of the role of strategic partnerships play in the early internationalisation of born globals. Furthermore, it adds new insights into the evolution of such partnerships

    Oviposition, life cycle, and parasitoids of the spruce cone maggot, Strobilomyia anthracina (Diptera: Anthomyiidae), in the Alps

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    The life cycle of Strobilomyia anthracina (Czerny) which exploits Norway spruce seed cones was investigated in 1992 and 1993 in the Alps at c. 1800 m at Torgnon (Valle d'Aosta, Italy) and Lac de Tseuzier (Valais, Switzerland) by sampling cones at fortnightly intervals. Oviposition occurred primarily singly in the basal third of cones at the beginning of June when cone scales were open for pollination. Infestation rates were higher when cone crops were poor. Most larvae left the cones in August to pupate in the litter beneath trees, usually at a depth of 1-4 cm. Prolonged diapause of pupae coincided with failed or poor cone crops. Parasitism was investigated at these two and 27 additional sites in the Swiss, French and Italian Alps. Among several hundred host eggs only one was parasitized by Trichogramma sp. (Trichogrammatidae). Among the larval-pupal endoparasitoids, the figitid Sarothrus areolatus Hartig was more common than an ichneumonid, Atractodes sp., but parasitism by both was commonly below 10%. Parasitism by an ichneumonid larval ectoparasitoid, Scambus sp., also rarely exceeded 10%. Puparia of S. anthracina that were buried in the litter to detect pupal parasitoids revealed the gregarious pteromalid Tritneptis sp. near lophyrorum (Rushka). This is the first record of a pupal parasitoid of Strobilomyia species. Information on the biology of the three larval parasitoids is presented. The potential for biological control of North American Strobilomyia neanthracina Michelsen and S. appalachensis Michelsen by importation of natural enemies of S. anthracina appears limite

    Cross Cultural Variables: Evaluating Employee Attitudes Across Four Regions Of Asia, Europe, North And Latin America

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    There has been an explosion of businesses moving operations overseas, setting up international joint ventures and establishing multinational enterprises. This trend has led organizational researchers as well as corporations to explore the implications of cultural differences in managing a workforce. Can the same Western management practices be used as effectively with employees in Asia as in North America? Does the application of Western management principles in multinationals affect aspects of job satisfaction in non-Western countries? This poster reports the findings from two exploratory analyses on the relationship between job attitudes and the geographic/cultural setting of business organizations. The first analysis is an overview of the levels and correlates of job satisfaction in four regions, North America, East Asia, Europe, and Latin America, and in nine countries of East Asia – China, Japan, South Korea, Taiwan, Indonesia, Malaysia, Singapore, Philippines, and Thailand. The second analysis uses 2002 survey data from three large multinational companies, in financial services, manufacturing, and oil & gas production, to examine the relative importance of top and immediate management, recognition, teamwork, salary and pay, and other employee attitudes for overall job satisfaction across these four regions. The research suggests that it is advisable for multinational companies to examine differences in employee views geographically to gain an understanding of attitudes and influences on occupational satisfaction in each of the countries they are involved in

    Urban growth in developing countries: A review of projections and predictions

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    Comparison of the United Nations’ earliest and most recent projections to the year 2000 suggests that urban and city growth in developing regions has occurred much more slowly than was anticipated as recently as 1980. A modified “urban population explosion” in developing countries since the 1970s conforms to explanatory models of urban growth developed by economists around 1980. Trends in productivity and terms of trade, in particular, have been highly favorable to agriculture as compared to manufacturing, presumably slowing migration to urban centers. Increases in national population growth rates have produced less than commensurate in rates of city growth, further supporting an economic and migration-related explanation for unexpectedly slow recent urban growth. Despite the efforts of the United Nations to maintain reliable statistics on urban and city populations, urban population projections should be interpreted with caution because of the inadequacies of the data on which they are based. Moreover, current projections that virtually all world population growth in the future will occur in urban areas of developing countries may be misconstrued, if the forces that have retarded urban growth in recent years persist

    Job Satisfaction Determinants: A Study Across 48 Nations

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    This paper examines the drivers of job satisfaction across four cultural regions—Asia, Europe, North America, and Latin America. Using Hofstede’s theory, determinants were used to predict job satisfaction for each region and then compared to determine significant differences. Data was collected from a proprietary industry survey on employee work attitudes. The sample consisted of over 70,000 employees from 4 large multinational organizations. Data was analyzed using regression analysis and comparison testing across models. There are significant relationships between job characteristics and job satisfaction across all regions of the world, with a sense of achievement universally the most important driver. Although job characteristics impact job satisfaction across all regions, there are significant differences in the relative importance of job characteristics on job satisfaction, consistent with Hofstede’s cultural dimensions. The findings have implications for tailoring human resource management practices across locations within multinationals.This research is believed to be the first cross-cultural study of the job determinants affecting job satisfaction using multiple organizations and industries

    Diversity patterns of ground beetles and understorey vegetation in mature, secondary and plantation forest regions of temperate Northern China

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    Plantation and secondary forests form increasingly important components of the global forest cover, but our current knowledge about their potential contribution to biodiversity conservation is limited. We surveyed understory plant and carabid species assemblages at three distinct regions in temperate northeastern China, dominated by mature forest (Changbaishan Nature Reserve, sampled in 2011 and 2012), secondary forest (Dongling Mountain, sampled in 2011 and 2012), and forest plantation habitats (Bashang Plateau, sampled in 2006 and 2007), respectively. The α-diversity of both taxonomic groups was highest in plantation forests of the Bashang Plateau. Beetle α-diversity was lowest, but plant and beetle species turnover peaked in the secondary forests of Dongling Mountain, while habitats in the Changbaishan Nature Reserve showed the lowest turnover rates for both taxa. Changbaishan Nature Reserve harbored the highest proportion of forest specialists. Our results suggest that in temperate regions of northern China, the protected larch plantation forest established over extensive areas might play a considerable role in maintaining a high biodiversity in relation to understory herbaceous plant species and carabid assemblages, which can be seen as indicators of forest disturbance. The high proportion of phytophagous carabids and the rarity of forest specialists reflect the relatively homogenous, immature status of the forest ecosystems on the Bashang Plateau. China's last remaining large old-growth forests like the ones on Changbaishan represent stable, mature ecosystems which require particular conservation attention
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