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61.
Objective. This study adds to our knowledge of the naturalization process by considering the impact of political orientations in shaping the pursuit of U.S. citizenship among contemporary Latino and Latina immigrants. Methods. We draw on data from the 1999 Harvard/Kaiser/Washington Post “Latino Political Survey” and use ordered logistic regression analyses to test the effects of political orientations on immigrant naturalization. Results. Political orientations exert a powerful influence on naturalization beyond the traditional sociodemographic determinants. Furthermore, the impact of political orientations on naturalization varies by gender. Conclusions. Naturalization can be induced by stressing the importance of voting and being interested in politics. In addition, Latinas are more likely to pursue naturalization than Latinos and the factors driving their decisions systematically differ from those of their male counterparts. 相似文献
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Beth Allen 《Theory and Decision》1986,21(1):1-33
Consider a general equilibrium model in which information is an indivisible differentiated commodity for which satiation occurs at one unit. Suppose that uncountably many types of information are possible which can be costlessly combined by agents who desire information only because it helps them to maximize state dependent utilities under uncertainty. Similarity of information is expressed by a metric which reflects substitution possibilities among different information structures. Such a large pure exchange economy in which prices for (differentiated) information structures and (finitely many) ordinary commodities are determined simultaneously is consistent - equilibrium distributions exist. 相似文献
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The continued expansion and fragmentation of biological disciplines impede education, communication, and efficient advance of biological research. Reversing these trends may require a unification of theories and concepts from all levels of biological organization. One form of this unification is the statement of generalizations that apply to all living systems. We explore the philosophical foundations of general theories of living systems by analyzing conceptual frameworks as they apply to biology. This analysis examines the relation of empirical observation, theories, and conceptual frameworks within the context of an individual scientist's conceptual continuum. Also presented are a small set of translevel generalizations that articulate our conceptual framework of living systems in terms of organismic system organization, the environmental system-organismic system dyad, system capacity, and system incorporation. A set of procedural rules are stated which suggest minimum criteria for the evaluation of the explanatory adequacy of biological theories. The relation of this work to other similar analyses and syntheses of biological knowledge is discussed. 相似文献
66.
Davina Allen 《Symbolic Interaction》2013,36(1):40-59
In Western society “normal adolescence” is understood to be a biologically driven phase characterized by emotional turmoil and irrational behavior. Despite being discredited within academic literature this discourse persists both in formal theory and everyday use. Drawing on the case of diabetes care, I argue that the discourse of “normal adolescence” derives its power from its value as a vocabulary of motive through which to navigate the contradictions inherent in the social order at this stage of the life‐course. While helping us to comprehend sociologically the ecological niche in which “normal adolescence” is sustained, this analysis raises questions about the persistence of this discourse for social action. 相似文献
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Bayesian palaeoclimate reconstruction 总被引:1,自引:0,他引:1
J. Haslett M. Whiley S. Bhattacharya M. Salter-Townshend Simon P. Wilson J. R. M. Allen B. Huntley F. J. G. Mitchell 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2006,169(3):395-438
Summary. We consider the problem of reconstructing prehistoric climates by using fossil data that have been extracted from lake sediment cores. Such reconstructions promise to provide one of the few ways to validate modern models of climate change. A hierarchical Bayesian modelling approach is presented and its use, inversely, is demonstrated in a relatively small but statistically challenging exercise: the reconstruction of prehistoric climate at Glendalough in Ireland from fossil pollen. This computationally intensive method extends current approaches by explicitly modelling uncertainty and reconstructing entire climate histories. The statistical issues that are raised relate to the use of compositional data (pollen) with covariates (climate) which are available at many modern sites but are missing for the fossil data. The compositional data arise as mixtures and the missing covariates have a temporal structure. Novel aspects of the analysis include a spatial process model for compositional data, local modelling of lattice data, the use, as a prior, of a random walk with long-tailed increments, a two-stage implementation of the Markov chain Monte Carlo approach and a fast approximate procedure for cross-validation in inverse problems. We present some details, contrasting its reconstructions with those which have been generated by a method in use in the palaeoclimatology literature. We suggest that the method provides a basis for resolving important challenging issues in palaeoclimate research. We draw attention to several challenging statistical issues that need to be overcome. 相似文献
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Individuals who had failed‐to‐thrive for non‐organic reasons received psychosocial intervention which was tailor‐made to their particular needs during childhood. Their progress was followed up over 20 years later, including their physical growth and social and cognitive functioning. Not all clients showed the same outcomes. The quality of the parental relationship and the reason for the growth‐faltering were found to be related to the outcomes at 20 years. Unless they experienced a positive and sustained change in their life or circumstances, individuals who had experienced abuse showed poorer outcomes than those whose growth‐faltering had been thought due to neglect, lack of parenting or feeding dif?culties. Abuse tended to be a contributing factor to growth‐faltering more frequently in families where the parents were observed to have a poor relationship with each other. However, a signi?cant change in the quality of care given to the child and the emotional environment experienced by them resulted in positive outcomes 20 years later despite experiencing abuse during childhood. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献