全文获取类型
收费全文 | 230篇 |
免费 | 8篇 |
专业分类
238篇 |
出版年
2023年 | 5篇 |
2022年 | 3篇 |
2021年 | 4篇 |
2020年 | 9篇 |
2019年 | 5篇 |
2018年 | 17篇 |
2017年 | 12篇 |
2016年 | 7篇 |
2015年 | 11篇 |
2014年 | 5篇 |
2013年 | 33篇 |
2012年 | 14篇 |
2011年 | 14篇 |
2010年 | 5篇 |
2009年 | 5篇 |
2008年 | 8篇 |
2007年 | 12篇 |
2006年 | 13篇 |
2005年 | 12篇 |
2004年 | 4篇 |
2003年 | 9篇 |
2002年 | 4篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1999年 | 3篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 3篇 |
1987年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1981年 | 1篇 |
1976年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有238条查询结果,搜索用时 8 毫秒
91.
The present study has investigated the occurrence of body image dissatisfaction among adolescent schoolgirls in Amman, Jordan, and the risk factors that are known to predispose it including individual, familial and social variables. A sample of 326 adolescent girls aged 10–16 years was recruited from public and private schools in Amman. Participants completed a socio-demographic data sheet, eating attitude test, and body shape questionnaire. Approximately, 21.2% of participants displayed body image dissatisfaction in which physical changes associated with puberty and exhibiting negative eating attitudes were associated with this dissatisfaction. Additionally, mass media messages, as well as peers and family pressures towards thinness were associated with participants’ preoccupation with their body image. In conclusion, negative body image perception was observed in the present sample. Therefore, well-controlled prospective studies and development of intervention programs on body image among adolescent girls in Jordan are needed. 相似文献
92.
We solve some open questions on the amalgamation porperty invarious algebras of logic (like cylindric algebras). Some ofthese problems first appeared in Pigozzi [3]. 相似文献
93.
There is a large body of work investigating face identification, but most of this addresses recognition of a single person. Here, we examine how recognition is affected by the presence of a second face. In Experiments 1 and 2, we demonstrate that memory for an unfamiliar face is severely reduced if it is seen alongside a second person. Sequential presentation of two target faces further reduces accuracy. In Experiments 3 and 4, we demonstrate the same disadvantage for two‐face targets in a matching task, where subjects have no time limits or memory requirement. In matching, the damaging effect of a second face is greatest when the targets are placed close together. Furthermore, there is a general advantage for faces presented to the left. We suggest that it may not be possible to extrapolate results from single‐face studies to experiments (or realistic situations) involving more than one person. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
94.
Shoaib Ahmed Malik 《Zygon》2019,54(2):501-522
With the increasing interest in Islam and evolution, some Islamic thinkers have vehemently rejected evolution, while others have eagerly embraced it. However, those seeking to embrace evolution sometimes err in their interpretation of historical writings. Indeed, there are texts written by famous historical scholars of Islam who seem to suggest that humans have evolved from lower forms of species. These include Ibn Khaldūn, Jalāl ad‐Dīn Rūmī, al‐Jāhiz, and The Brethren of Purity (Ikhwān al Safā). Although this may be true, such readings are a mistaken interpretation of the aforementioned authors who are actually referring to some form of the scalae naturae (the Great Chain of Being). This reference to the Great Chain of Being is unknown to some contemporary readers who mistakenly believe these writers to be discussing an evolutionary or a proto‐evolutionary theory. This article demonstrates how and why these historical records do not actually represent any notion of evolution as it is currently understood, in the hope of avoiding any further erroneous claims that seem to be proliferating among modern thinkers. 相似文献
95.
Tarek Sayed Ahmed 《Studia Logica》2008,89(3):325-332
Following research initiated by Tarski, Craig and Németi, and futher pursued by Sain and others, we show that for certain
subsets G of
ω
ω, atomic countable G polyadic algebras are completely representable. G polyadic algebras are obtained by restricting the similarity type and axiomatization of ω-dimensional polyadic algebras to finite quantifiers and substitutions in G. This contrasts the cases of cylindric and relation algebras.
Presented by Robert Goldblatt 相似文献
96.
Abdel-Khalek AM 《Psychological reports》2008,102(1):181-184
In a sample of 424 Kuwaiti personnel (219 men, 205 women; M age = 37.6 yr., SD = 8.9; M age = 33.4 yr., SD = 7.9, respectively), self-ratings of religiosity were significantly and positively correlated with the self-ratings of physical health, mental health, and happiness, as well as the Oxford Happiness Inventory, the Love of Life Scale, and the Satisfaction with Life Scale among men and women. Principal components analysis of the correlation matrix yielded only one salient factor labeled "Well-being, health and religiosity" that explained 52.7% and 56.5% of the variance for men and women, respectively. Religiosity is an important element in the lives of the majority of the present sample of Kuwaiti Muslim employees. 相似文献
97.
Ahmed M. Abdel-Khalek 《Journal of Happiness Studies》2004,5(1):93-97
Happiness was assessed in 140 Kuwaiti students by means of a single item self-report. Its retest reliability after one week
was good (r=+0.86). It is argued that single question suffices for measuring states like happiness. Average happiness appeared to be
quite low compared to students in other countries. Possible reasons for the low level of happiness among Kuwaiti college students
are discussed.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
98.
This study addressed the feasibility, practicality, and effects of a management style defined as "Management-by-Virtues," a management philosophy and practice based on virtues derived from religious beliefs. The study focused on Management-by-Virtues as practiced in Christian firms and assessed the effect that Management-by-Virtues could have on such organizational outcomes as employees' Organizational Commitment, Job Satisfaction, and propensity to go beyond the call of duty in carrying out organizational tasks, i.e., Organizational Citizenship Behavior. The study, based on survey responses from 328 employees of 26 business firms, compared overall scores on Organizational Commitment, Job Satisfaction, and Organizational Citizenship Behavior in 10 businesses, described by owner/managers as being managed according to Christian beliefs and practices, with the same outcomes in 16 "control" firms that did not explicitly espouse such an orientation. The Management-by-Virtues firms were characterized by more committed, more satisfied employees, and employees' reports of higher incidence of Organizational Citizenship Behavior than the comparison firms. However, a measure of this construct based on employees' perceptions did not sharply differentiate the two groups of firms. 相似文献
99.
Samples of Kuwaiti (n=646) and American (n=320) undergraduates responded to the Kuwait University Anxiety Scale in Arabic and English, respectively. Differences by sex were significant, with women having a higher mean anxiety score than men and by country with Kuwaiti women having a higher anxiety score than American women. 相似文献
100.
When we switch to a new task, performance is transiently relatively poor, but improves dramatically after one trial. Such a “switch cost” may result from the preceding task being highly primed while the new task is not yet primed. This predicts that it should become more difficult to switch back to Task A when more trials of Task B have intervened. Such a lag effect has been found in some but not in most previous experiments, and to resolve this discrepancy we examined the effects of task lag with different stimuli. We found that when stimuli uniquely and clearly cued the task—minimizing the need for control—switch reaction time increased with task lag. However, when the need for control was increased by using similar or identical stimuli in the two tasks, this lag effect was abolished or reversed. Thus only when control processes are minimized can priming explain the difficulty of switching back from Task B to Task A. Second, we asked how the impact of control is mediated in conditions where it is not minimized. If it is mediated through altering the relative activation states of competing tasks, then as it becomes easier to do one task—the relative task-set activation state is tipped in that task's favour—it should always become harder to do the other task. On the other hand, if control bias affects switch performance directly, this relationship need not hold. We found that as it becomes easier to perform one task it can become easier, not harder, to switch to the competing task. Thus control bias must act directly on switch performance, rather than only through its influence on relative task-set activation. 相似文献