全文获取类型
收费全文 | 2662篇 |
免费 | 73篇 |
国内免费 | 2篇 |
出版年
2018年 | 32篇 |
2017年 | 48篇 |
2016年 | 56篇 |
2015年 | 30篇 |
2014年 | 37篇 |
2013年 | 325篇 |
2012年 | 74篇 |
2011年 | 80篇 |
2010年 | 44篇 |
2009年 | 52篇 |
2008年 | 65篇 |
2007年 | 65篇 |
2006年 | 76篇 |
2005年 | 88篇 |
2004年 | 72篇 |
2003年 | 72篇 |
2002年 | 69篇 |
2001年 | 35篇 |
2000年 | 31篇 |
1999年 | 45篇 |
1998年 | 55篇 |
1997年 | 36篇 |
1996年 | 42篇 |
1995年 | 36篇 |
1994年 | 35篇 |
1993年 | 36篇 |
1992年 | 31篇 |
1991年 | 38篇 |
1990年 | 34篇 |
1989年 | 44篇 |
1988年 | 35篇 |
1987年 | 32篇 |
1986年 | 30篇 |
1985年 | 26篇 |
1984年 | 43篇 |
1983年 | 35篇 |
1982年 | 47篇 |
1981年 | 37篇 |
1980年 | 42篇 |
1979年 | 43篇 |
1978年 | 45篇 |
1977年 | 37篇 |
1976年 | 39篇 |
1975年 | 34篇 |
1974年 | 43篇 |
1973年 | 37篇 |
1971年 | 27篇 |
1969年 | 34篇 |
1968年 | 27篇 |
1967年 | 27篇 |
排序方式: 共有2737条查询结果,搜索用时 125 毫秒
931.
The purpose of this paper is to introduce the Special Issue on gender and sex diversity in sport organizations. In doing so,
we first provide a brief outline of the extant literature, emphasizing the research and theoretical developments at the macro,
meso, and micro level of analysis. Based on this framework and review, we allude to the communalities and intricacies in the
existing understanding of sex and gender in the sport workplace. Further, we highlight how the contributions in the Special
Issue address these voids and can serve as a catalyst to continued scholarly work in the area. 相似文献
932.
In this paper we study the notion of forcing for Łukasiewicz predicate logic (Ł∀, for short), along the lines of Robinson’s
forcing in classical model theory. We deal with both finite and infinite forcing. As regard to the former we prove a Generic
Model Theorem for Ł∀, while for the latter, we study the generic and existentially complete standard models of Ł∀.
Presented by Jacek Malinowski 相似文献
933.
The thesis of underdetermination presents a major obstacle to the epistemological claims of scientific realism. That thesis
is regularly assumed in the philosophy of science, but is puzzlingly at odds with the actual history of science, in which
empirically adequate theories are thin on the ground. We propose to advance a case for scientific realism which concentrates
on the process of scientific reasoning rather than its theoretical products. Developing an account of causal–explanatory inference
will make it easier to resist the thesis of underdetermination. For, if we are not restricted to inference to the best explanation
only at the level of major theories, we will be able to acknowledge that there is a structure in data sets which imposes serious
constraints on possible theoretical alternatives. We describe how Differential Inference, a form of inference based on contrastive
explanation, can be used in order to generate causal hypotheses. We then go on to consider how experimental manipulation of
differences can be used to achieve Difference Closure, thereby confirming claims of causal efficacy and also eliminating possible
confounds. The model of Differential Inference outlined here shows at least one way in which it is possible to ‘reason from
the phenomena’. 相似文献
934.
Mashour GA 《Journal of the American Psychoanalytic Association》2008,56(1):203-222
Psychoanalysis and anesthesiology appear radically different in their clinical practice, yet they share a focus of inquiry: unconscious processes. Despite this common domain, there has been no exploration of the relationship between "the unconscious" as conceived by psychoanalysts and "surgical unconsciousness" as conceived by anesthesiologists. This is likely due to the fact that general anesthesia has been assumed to be a state in which the brain is simply "turned off." More recent neuroscientific data invalidate this assumption by demonstrating that the anesthetized brain is both cognitively dynamic and capable of implicit learning. Current perspectives on anesthetic mechanisms suggest that general anesthesia is characterized not simply by the absence of cognitive activity, but by the disintegration of cognitive activity. The cognitive unbinding paradigm of general anesthesia is discussed and its application to Wilfred Bion's theory of thinking, as well as his concept of attacks on linking, is elucidated. Based on the common structure and function of unconscious processes in psychoanalysis and anesthesiology, the foundation of a general theory is established. 相似文献
935.
936.
The motion aftereffect is a robust illusion of visual motion resulting from exposure to a moving pattern. There is a widely accepted explanation of it in terms of changes in the response of cortical direction-selective neurons. Research has distinguished several variants of the effect. Converging recent evidence from different experimental techniques (psychophysics, single-unit recording, brain imaging, transcranial magnetic stimulation, visual evoked potentials and magnetoencephalography) reveals that adaptation is not confined to one or even two cortical areas, but occurs at multiple levels of processing involved in visual motion analysis. A tentative motion-processing framework is described, based on motion aftereffect research. Recent ideas on the function of adaptation see it as a form of gain control that maximises the efficiency of information transmission at multiple levels of the visual pathway. 相似文献
937.
A Monte-Carlo simulation was used to model the biasing of effect sizes in published studies. The findings from the simulation indicate that, when a predominant bias to publish studies with statistically significant results is coupled with inadequate statistical power, there will be an overestimation of effect sizes. The consequences such an effect size overestimation will then have on meta-analyses and power analyses are highlighted and discussed along with measures which can be taken to reduce the problem. 相似文献
938.
George D. BondAuthor Vitae 《Religion》2003,33(1):23-55
This article examines the lay meditation movement occurring in contemporary Buddhism in Sri Lanka. The lay meditation movement represents a different perspective from the nationalistic Sinhala Buddhism that has dominated the discourse in the wake of the intractable ethnic conflict in the country. The lay meditation movement reflects the contemporary ferment in Buddhist discourse among the laity. One of the key themes in this movement is the privileging of experience because it gives the lay groups authority to challenge contemporary orthodoxy and it has empowered a new class of spiritual leaders, the lay gurus. Paraphrasing Stirrat, we can say that these lay gurus are leading the lay meditation movement towards ‘a series of different interpretations of what it means’ to be a Buddhist today. In its overall effect the lay meditation movement not only reconstructs what it means to be a Buddhist today but also points in the direction of establishing new forms of sectarianism that could be considered to be ‘new religious movements’ under the umbrella of Buddhism. 相似文献
939.
Three types of variable have been used to explain brand preference changes: consumer characteristics, marketing mix factors and situational influences. The study presented in this paper focuses on the relationship between life events experienced by individuals, resultant stress and lifestyle changes and changes in brand preferences. Based on theory and past research, a model is proposed and tested. The data support the notion that brand preference changes may be viewed as the outcome of adjustments to new life conditions and changes in consumption lifestyles that reflect consumer efforts to cope with stressful life changes. Implications for consumer research are also discussed. Copyright © 2003 Henry Stewart Publications. 相似文献
940.
A. E. Butt J. A. Schultz L. L. Arnold E. E. Garman C. L. George P. E. Garraghty 《Integrative psychological & behavioral science》2003,38(4):253-271
Rats with selective lesions of the nucleus basalis magnocellularis (NBM) and sham-lesion control animals were tested in an
operant appetitive-to-aversive transfer task. We hypothesized that NBM lesions would not affect performance in the appetitive
phase, but that performance would be impaired during subsequent transfer to the aversive phase of the task. Additional groups
of NBM lesion and control rats were tested in the avoidance condition only, where we hypothesized that NBM lesions would not
disrupt performance. These hypotheses were based, on the argument that the NBM is not necessary for simple association learning
that does not tax attention. Both the appetitive phase of the transfer task and the avoidance only task depend only on simple
associative learning and are argued not to tax attention. Consequently, performance in these tasks was predicted to be spared
following NBM lesions. Complex, attention-demanding associative learning, however, is argued to depend on the NBM. Performance,
in the aversive phase of the transfer task is both attentionally demanding and associatively more complex than in either the
appetitive or aversive tasks alone; thus, avoidance performance in the NBM lesion group was predicted to be impaired following
transfer from prior appetitive conditioning. Results supported our hypotheses, with the NBM lesion group acquiring the appetitive
response normally, but showing impaired performance following transfer to the aversive conditioning phase of the transfer
task. Impairments were not attributable to disrupted avoidance learning per se, as avoidance behavior was normal in the NBM
lesion group tested in the avoidance condition only. 相似文献