首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   62篇
  免费   7篇
  国内免费   1篇
  2024年   1篇
  2023年   7篇
  2022年   2篇
  2021年   10篇
  2020年   8篇
  2019年   6篇
  2018年   1篇
  2017年   2篇
  2016年   3篇
  2015年   3篇
  2013年   13篇
  2012年   2篇
  2011年   2篇
  2010年   1篇
  2005年   3篇
  2004年   2篇
  2003年   1篇
  2002年   1篇
  1998年   1篇
  1997年   1篇
排序方式: 共有70条查询结果,搜索用时 15 毫秒
61.
Measurements of static permittivity, refractive index and density have been carried out to study possible H-bonded complexes in solutions of anisole diluted by benzene together with high-static-permittivity alcohols, i.e. cyclohexanol, n-butanol, tert-butanol, isopropyl alcohol and 1-hexanol. The experiments were performed at 303 K. Dipole moments of the mixtures are calculated from the experimental data and these are used to obtain dipolar increments. The concentration ratio of proton donor to proton acceptor is plotted against a parameter, ΩB, which is determined from experimental data. From the plot, the dipole moment of the mixture and that of the component B are determined. The order of the complex can be obtained from the nature of the graph. The investigation shows that the interaction between the two components arises solely from a polarization effect.  相似文献   
62.
PbZr0.95Ti0.05O3 thin film has the highest electrocaloric properties of all the oxide thin films (0.48?K?V?1). Here, it is shown giant electrocaloric properties in 200?nm (1?0?0)-oriented PMN–PT 68/32 film near the ferroelectric Curie temperature of 146?°C. The results indicate the significance of this system to achieve electrocaloric entropy change and temperature change, up to 32.21?J/kg?°C and 14?K, respectively, in 12?V (i.e. 1.155?K?V?1) near the Curie point. This exceeds the previous best results obtained in PbZr0.95Ti0.05O3 thin film.  相似文献   
63.
The purpose of this study was to explore how Canadian elite athletes perceived, experienced, and coped with the Covid-19 pandemic and postponement of the Tokyo 2020 Games. We conducted semi-structured interviews with seven Paralympic and 14 Olympic hopefuls (n = 21). Data were analyzed using reflexive thematic analysis. Due to halting of training and competition and inabilities to live out the coveted performance narrative emphasizing winning above all, participants experienced complex emotional webs and questioned their purpose as athletes, which catalyzed psychological disruption. They coped by reframing the postponement as an opportunity for growth and risk-free chance to challenge the performance narrative through the embodiment of a reclaimed time narrative and associated attempts to diversify identities in non-sport domains. The findings highlight how the sociocultural environment impacts athletes’ agency to self-regulate in response to unexpected and dynamic athletic career-related events, thereby prompting the negotiation of concomitant psychological (dis)stress and growth.  相似文献   
64.
We explore the effects of negative word of mouth (NWOM) from worse-off or similar others in the post-consumption stage. In four experiments, we show that the ramifications of NWOM are more complex than portrayed in the literature. Specifically, we demonstrate that attribute-based NWOM has a negative (i.e., aggravating) effect on dissatisfied consumers, whereas experience-based NWOM has a positive (i.e., alleviating) effect. Thought-listing data reveal distinct processes underlying the contrasting effects. On one hand, these results are consistent with the predictions of attitude polarization and downward comparison research. On the other hand, they are explainable in terms of the disconfirmation model.  相似文献   
65.
Examinations of culture wars typically assess the attitudes of the American public. This study instead focuses on culture wars among religious elites—clergy—and tests three aspects of the culture wars thesis: (1) whether religious elites are engaged in culture wars, (2) whether clergy attitudes are polarized on these issues, and (3) whether religious authority or religious affiliation is more salient in creating culture wars cleavages. Using data from a large random sample of Protestant clergy, we find a substantial amount of engagement in culture wars by all types of Protestant clergy. The amount of polarization is more attributable to views of religious authority (i.e., biblical inerrancy) than to religious tradition. Moreover, polarization among clergy is somewhat more evident on culture wars issues than on other social and political issues. These findings are generally supportive of the culture wars thesis and should help return examinations of culture wars back to where they were originally theorized to be waged: among elites.  相似文献   
66.
A growing body of work seeks to explain the lack of clear evidence for the diversionary use of force by casting doubt on such strategies' attractiveness for policy makers: while domestic political and economic problems may provide incentives for diversion, such strategies involve political and military risks that frequently outweigh these incentives. Such theories correctly identify the objective risks involved in diversion but do not account for variation in leaders' risk‐taking propensities. We develop a “first image” theory of diversion that suggests a key psychological variable (locus of control) shapes leaders' willingness to engage in risky diversionary strategies. A statistical analysis of the American use of force, 1953–2000, finds strong support for this model. We conclude that the lack of clear evidence for diversion in general is a reflection of the contingent nature of the phenomenon and call for greater attention to how agents and structures interact to produce policy behavior.  相似文献   
67.
The extent to which individual differences in personality traits and cognitive styles diminish affective polarization (AP) is largely unknown. We address this gap by examining whether intellectual humility (IH) buffers against AP. We examined the associations between domain-general and domain-specific measures of IH, on the one hand, and AP, on the other, in two community samples. Measures of IH were robustly negatively associated with AP. Moreover, IH significantly incremented measures of allied constructs, including general humility, in the statistical prediction of AP. There was some evidence that IH buffered the relationships between strong political belief and AP. Future research is needed to clarify whether IH is sufficient to protect against AP in the presence of ideological extremity.  相似文献   
68.
69.
Political discourses about Muslim immigration in the media and on social networking sites (SNSs) are highly contentious and have the potential to further polarize societal segments, which may ultimately harm democratic processes. Especially on SNSs, politicians and citizens can circumvent journalistic filters often resulting in blatant and emotionally charged content. Using a two-wave panel design (N = 559), we investigated how positive and negative portrayals of Muslims in traditional media outlets and on SNSs influence anti-Muslim immigration attitudes among people who either agree or disagree with the encountered information. Our findings indicate that exposure to negative portrayals further reinforces anti-Muslim immigration attitudes among those who agree with the encountered information. In contrast, for those who disagree with the negative information, a backfire effect emerges, showing that anti-Muslim attitudes even decrease. This effect occurs for both SNSs and traditional media. Positive information about Muslims did not result in attitude polarization.  相似文献   
70.
Political conflict sometimes spills over into unrelated areas of our lives. A growing literature documents examples of partisan considerations influencing judgments and behaviors in ostensibly nonpolitical contexts such as the workplace, academia, and dating, among others. To date, the focus has been on demonstrating these phenomena, with scant consideration of their downstream effects. When politics spills over into nonpolitical settings—that is, when political considerations influence nonpolitical judgments or behaviors—what are the consequences? I address this question with a novel theory and a nationally representative survey experiment. I find that norms exist regarding the spillover of political considerations into nonpolitical matters—and that spillover can have its own political consequences. When one's copartisans discriminate against members of the other party, it can lead to decreased partisan identification and depolarization. Partisan discrimination in nonpolitical settings can—in some sense ironically—reduce affective polarization. That said, partisans also appear to hold a double standard: They expect copartisans to give an edge to fellow copartisans.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号