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排序方式: 共有619条查询结果,搜索用时 31 毫秒
111.
Robert Oakes Kees Van der Geest Benjamin Schraven Stephen Adaawen Sonja Ayeb-Karlsson Alexander de Sherbinin Benjamin Etzold Juliane Groth Kathleen Hermanns Silvana Lakeman Raphael Nawrotzki Christina Rademacher-Schulz Clemens Romankiewic Diogo Serraglio Harald Sterly Lisa Thalheimer Charlotte Wiederkehr David Williams 《International migration (Geneva, Switzerland)》2023,61(5):116-125
In the past 15 years, research activities focusing on the interlinkages between climate change and human mobility have intensified. At the same time, an increasing number of actors and processes have sought to address human mobility in the context of climate change from a policy perspective. Hitherto, research has been limited in terms of geographical preferences as well as conceptual and methodological focus areas. This paper argues that to address the evolving policy space, future research on climate change in the context of human mobility needs to become more differentiated, integrated and generalized. This includes concerted efforts to better integrate researchers from the global South, improved cross-linkages between different datasets, approaches and disciplines, more longitudinal and comparative studies and development of innovative qualitative and quantitative methods. 相似文献
112.
The past decade brought a remarkable increase in the number and quality of biosocial studies of family processes. The current review summarizes recent advances in biosocial family research by providing key exemplars of emerging research paradigms. Research in the past decade has substantiated the claim in the previous Decade Review ( Booth, Carver, & Granger, 2000 ) that bidirectional influences between all levels of analysis are paramount. There is an emerging consensus that integrating factors at multiple biological and social levels is highly informative. Because ignoring biological factors often will underestimate mediating or moderating mechanisms, the review provides recommendations for biosocial family research. We also highlight the need for researchers who understand complex family environments to lend their expertise to biosocial studies. 相似文献
113.
114.
Benjamin Gregg 《Theory and Society》2010,39(6):631-650
I propose human rights as self-authored through a personality structure of “assertive selfhood.” To that end I identify three
features of self-authorship: emergent through collective political action; as a critical stance; and borne by non-idiosyncratic
norms. So conceived, human rights require a field of recognition as a social structure supportive of claims to assertive selfhood.
I show that the capacity to self-grant depends critically on the participant’s personality structure as well as on the structure
of some of the social institutions he or she inhabits. But like any political vision, the project for self-granted human rights
has distinct limits, above all with respect to the many inequalities among potential self-authors. 相似文献
115.
The current study examines trauma narratives from 28 survivors of interpersonal violence. A mixed-method approach assessed coherence and explored narrative characteristics among differentially exposed groups. The quantitative analysis revealed: (1) exposure to repetitive interpersonal violence was described with greater perception of severity and emotional tone than single interpersonal violence episodes, and (2) exposure to interpersonal violence in childhood was described with greater emotional tone than exposure to interpersonal violence in adulthood. The qualitative analysis revealed: (1) traumatic events were connected to proceeding adverse experiences, (2) attempted avoidance of memories of the violence, (3) an altered view of the self, and (4) lacked recognition that the violence was abnormal. The study supports the "dose-response relationship" of trauma exposure, and the life-altering, transformative nature of trauma exposure. 相似文献
116.
Using the 2005 U.S. Current Population Survey, we identify the demographic profile of international volunteers from the United States. According to logistic regression results, those most likely to volunteer internationally are young, white, male, highly educated, foreign‐born individuals without dependent children in the home and not employed full time. These findings are discussed through the lens of access and inclusion, examining the possible influences of individual choice and programmatic structure on this demographic profile. Implications are drawn for future research. 相似文献
117.
118.
The accuracy of a diagnostic test is typically characterized using the receiver operating characteristic (ROC) curve. Summarizing indexes such as the area under the ROC curve (AUC) are used to compare different tests as well as to measure the difference between two populations. Often additional information is available on some of the covariates which are known to influence the accuracy of such measures. The authors propose nonparametric methods for covariate adjustment of the AUC. Models with normal errors and possibly non‐normal errors are discussed and analyzed separately. Nonparametric regression is used for estimating mean and variance functions in both scenarios. In the model that relaxes the assumption of normality, the authors propose a covariate‐adjusted Mann–Whitney estimator for AUC estimation which effectively uses available data to construct working samples at any covariate value of interest and is computationally efficient for implementation. This provides a generalization of the Mann–Whitney approach for comparing two populations by taking covariate effects into account. The authors derive asymptotic properties for the AUC estimators in both settings, including asymptotic normality, optimal strong uniform convergence rates and mean squared error (MSE) consistency. The MSE of the AUC estimators was also assessed in smaller samples by simulation. Data from an agricultural study were used to illustrate the methods of analysis. The Canadian Journal of Statistics 38:27–46; 2010 © 2009 Statistical Society of Canada 相似文献
119.
120.
In this paper we address the question whether insider ownership affects corporate performance. Evidence from studies dealing
with Anglo-Saxon countries is rather inconclusive, especially because results seem to be significantly affected by endogeneity.
Economically, this is due to the fact that in these countries insider ownership seems to be mainly driven by management’s
compensation contracts. We argue that Germany is different in this regard, as insider ownership is often related to family
control, stock-based compensation is less widespread, and the market for corporate control used to be less developed. Starting
from this presumption, our data allows an unbiased observation as to whether insider ownership affects firm performance. Using
a pooled data set of 648 firm observations for the years 2003 and 1998, we find evidence for a positive and significant relationship
between corporate performance—as measured by stock price performance, market-to-book ratio and return on assets—and insider
ownership. This relationship seems to be rather robust, even if we account for potential endogeneity by applying a 2SLS regression
approach. Furthermore, the results hold for a sub-sample of firms that did not have a stock-based compensation program in
place. Moreover, we find outside block ownership as well as more concentrated insider ownership to have a positive impact
on corporate performance. Overall, the results indicate that ownership structure might be an important variable explaining
the long term value creation in the corporate sector.
相似文献
Benjamin MoldenhauerEmail: |