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1.
This paper presents findings from a study exploring the views of people with personality disorder diagnoses and various professionals working with them. After outlining the policy context and the study's conceptual framework, the aims and methods are described. Interviews were conducted with 12 service providers and 10 users. The main findings are then discussed, including user and provider perspectives on the meaning of 'personality disorder' and the strategies and support people use to address their difficulties. Finally, the theoretical implications of the findings are discussed. 相似文献
2.
Summary A continuous-time differential equation model was constructed which describes the population dynamics of a predator prey system
in which sterile prey are released in a program designed to eradicate or reduce the prey population. It was found that the
dynamics of the system behave quite differently when predators are present.
Two conditions were found which have differing implications for the control program. If the predators still exist when the
wild prey population declines to extinction, then the SIRM is assisted by the predators, sometimes to a considereble extent.
If the predators decline to extinction before the wild prey population goes extinct, then the predators may or may not assist
the SIRM depending on the parameters of the system. If the predators do assist the SIRM, then a potentially dangerous situation
exists in which an explosion of the prey population could occur after the predators go extinct. Predator polyphagy would probably
minimize this danger of an explosion since it would stabilize the predator population. 相似文献
3.
As parental ages at birth continue to rise, concerns about the effects of fertility postponement on offspring are increasing. Due to reproductive ageing, advanced parental ages have been associated with negative health outcomes for offspring, including decreased longevity. The literature, however, has neglected to examine the potential benefits of being born at a later date. Secular declines in mortality mean that later birth cohorts are living longer. We analyse mortality over ages 30–74 among 1.9 million Swedish men and women born 1938–60, and use a sibling comparison design that accounts for all time-invariant factors shared by the siblings. When incorporating cohort improvements in mortality, we find that those born to older mothers do not suffer any significant mortality disadvantage, and that those born to older fathers have lower mortality. These findings are likely to be explained by secular declines in mortality counterbalancing the negative effects of reproductive ageing. 相似文献
4.
Demographic research has paid much attention to the impact of childhood conditions on adult mortality. We focus on one of the key aspects of early life conditions, sibling group size, and examine the causal effect of growing up in a large family on mortality. While previous studies have focused on low- or middle-income countries, we examine whether growing up in a large family is a disadvantage in Sweden, a context where most parents have adequate resources, which are complemented by a generous welfare state. We used Swedish register data and frailty models, examining all-cause and cause-specific mortality between the ages of 40 and 74 for the 1938–72 cohorts, and also a quasi-experimental approach that exploited multiple births as a source of exogenous variation in the number of siblings. Overall our results do not indicate that growing up in a large family has a detrimental effect on longevity in Sweden. 相似文献
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