À partir des données des recensements canadiens de 1991 et de 1996, nous nous penchons sur la question des immigrants pauvres et à faible revenu, un sujet très peu traité dans les travaux de recherche précédents sur l'immigration. Comparativement aux Canadiens de souche, les immigrants sont constamment surreprésentés dans la classe des pauvres. Cette surreprésentation comporte une orientation ethnique et raciale claire: les immigrants appartenant aux minorités visibles vivant les pires conditions. Les modèles de régression logis‐tique révèlent que, dans leur cas, les chances d'être pauvres sont con‐sidérablement plus élevées même en tenant compte de toutes les autres variables pertinentes. Les taux de pauvreté des différentes générations d'immigrants ne suivent pas un modèle logique; ceux qui ont émigréà l'adolescence vivent dans des conditions anormales de pauvreté extrême. La comparaison entre la situation des immigrants en 1991 et en 1996 révèle que l'investissement en matière de capital humain favorise de moins en moins les immigrants. Using the 1991 and 1996 Canadian census data, the present study addresses the issue of poor or low‐income immigrants, a topic largely overlooked in previous immigration research. The authors found that, compared to native‐born Canadians, immigrants were consistently over‐represented among the poor, and that this over‐representation had a clear ethnic and racial colour, with visible minority immigrants experiencing the most severe conditions. For them, the logistic regression models show, the odds of poverty are noticeably higher, even after controlling for all other relevant variables. The poverty rates of different generations of immigrants also show an unexpected pattern, in which those who have migrated during their adolescent years experience unusually severe poverty conditions. A comparison of the situation in 1991 and 1996 shows that human capital endowments are becoming less rewarding for immigrants. 相似文献
Background: India is a significant host to homeless unknown persons (HUPs) and subsequently to their untimely deaths due to various reasons. The autopsy-based evaluation has been always important in knowing the exact reasons behind it. Objective: To know about the epidemiological mortality profile such as magnitude, cause and manner of death, seasonality, and year-wise distribution of their untimely and unattended deaths. Materials and Methods: A retrospective autopsy-based evaluation of unnatural deaths among HUPs was done at LHMC, New Delhi for a total duration of 5 years (January 2006 to December 2010). Results: Out of 749 cases in the study group in this duration, 536 deaths have been caused due to some natural events and 213 due to some unnatural events. Among the natural deaths, the pulmonary pathology did contribute for 509 cases. Conclusion: The study population is a vulnerable segment of the society which often suffers the extreme adversity of natural and unnatural events in the form of their deaths. It is a significant host to the pulmonary infections that often spread to the other segments of the society at the point of contact. Thereby it deserves an urgent public health intervention and a policy response for the same for the well-being of HUPs and the general public at large. 相似文献
Dual‐process theories contend that interplay between higher‐order (i.e., regulatory) and lower‐order (i.e., reactive) systems influences the development of attention in early childhood. We therefore investigated interactions between an aspect of children's top‐down self‐regulation (i.e., effortful control; EC) and positive reactivity (indexed by observed positive affectivity; PA) and negative reactivity (indicated by cortisol stress reactivity and observed fear) in predicting children's early attention problems. We found that observed EC at the age of three predicted lower attention problems 2 years later, controlling for attention problems at baseline. Importantly, the predictive effect of EC was more pronounced for children higher in cortisol stress reactivity at the age of three; this pattern was not found for observed PA or fear. Findings align with dual‐process developmental theories that emphasize the dynamics between regulatory and reactive processes in shaping child development. Our study provides the first evidence supporting dual‐process interactions in the domain of attention problems and has implications for identifying early risk markers and informing early prevention programs for children at greater risk for attention problems. 相似文献
Urbanisation has caused significant alterations to ecosystems, generally resulting in decreased biodiversity. However, certain animal species persist and thrive in urban environments by making use of available opportunities, anthropogenic resources, infrastructure and increased ambient and surface temperatures. These species are known as urban exploiters. We investigated the southern tree agama, Acanthocercus atricollis population trends, habitat use and basking and shading behaviour in a high-density urban human-populated housing metropolitan area in Pietermaritzburg, KwaZulu-Natal, South Africa. We marked individual southern tree agamas to determine habitat use and territories (n?=?37). The southern tree agama population density was high, and they had established set territories here. We conducted monthly observations (February 2017–July 2017 and March 2018–February 2019) to determine the degree of basking and shading behaviour with season and time of day and location. Southern tree agamas invested more than half of their time (57%) in basking behaviour during the overall observational study period. Basking and shading patterns changed with season and time of day. The number of basking southern tree agamas decreased during winter and basking commenced later. We found that increased anthropogenic infrastructure and supplementary food availability, decreased predators, and basking opportunities could have had an influence on their population increase and that the southern tree agama is a potential urban exploiter.
Between 1981 and August 1997, 100,000 AIDS cases were reported in New York City (NYC): 77,067 men, 20,818 women, 307 teenagers, and 1,808 children. This report examines AIDS trends in NYC as the epidemic evolved from a predominantly white male epidemic among men with same sex contact (MSM) mostly from a single borough to a geographically diffuse epidemic that includes injecting drug users (IDU), persons of color, and women infected heterosexually. Case data were collected by active surveillance methods augmented by electronic laboratory based reporting. Mortality data were obtained from NYC Vital Statistics. 1990 Census data were used to derive incidence rates and prevalence by neighborhood income. Rates per 100,000 adults by neighborhood ranged from 260 to 5,500. Total AIDS incidence peaked in 1993 and has subsequently declined. Among men there was a shift from MSM to IDU as the predominant risk group, and increasing incidence among men reporting heterosexual contact. IDU was the leading risk factor among women, and women increased from 8 to 30 percent of all cases between 1982 and 1997. Unlike incidence, AIDS prevalence is rising among socially and economically marginalized populations, and will remain a major public health challenge well into the next century. 相似文献
Review of Managerial Science - This paper attempts to analyse the competitiveness of Indian drug and pharmaceutical industry in the domestic market where multinational pharma companies are entering... 相似文献
Journal of Management and Governance - This paper aims to enhance the understanding of the relationship between corporate governance mechanism and firm performance among Shariah-compliant firms... 相似文献
AbstractIn the present article, an effort has been made to develop calibration estimators of the population mean under two-stage stratified random sampling design when auxiliary information is available at primary stage unit (psu) level. The properties of the developed estimators are derived in-terms of design based approximate variance and approximate consistent design based estimator of the variance. Some simulation studies have been conducted to investigate the relative performance of calibration estimator over the usual estimator of the population mean without using auxiliary information in two-stage stratified random sampling. Proposed calibration estimators have outperformed the usual estimator without using auxiliary information. 相似文献