全文获取类型
收费全文 | 159篇 |
免费 | 42篇 |
国内免费 | 17篇 |
出版年
2024年 | 1篇 |
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 2篇 |
2020年 | 3篇 |
2019年 | 11篇 |
2018年 | 6篇 |
2017年 | 8篇 |
2016年 | 11篇 |
2015年 | 3篇 |
2014年 | 17篇 |
2013年 | 24篇 |
2012年 | 1篇 |
2011年 | 7篇 |
2010年 | 5篇 |
2009年 | 4篇 |
2008年 | 6篇 |
2007年 | 8篇 |
2006年 | 6篇 |
2005年 | 9篇 |
2004年 | 10篇 |
2003年 | 5篇 |
2002年 | 8篇 |
2001年 | 3篇 |
2000年 | 5篇 |
1999年 | 6篇 |
1998年 | 2篇 |
1997年 | 6篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 4篇 |
1990年 | 1篇 |
1989年 | 2篇 |
1987年 | 1篇 |
1986年 | 3篇 |
1985年 | 2篇 |
1983年 | 3篇 |
1982年 | 2篇 |
1981年 | 3篇 |
1980年 | 2篇 |
1979年 | 1篇 |
1978年 | 5篇 |
1976年 | 2篇 |
1975年 | 3篇 |
排序方式: 共有218条查询结果,搜索用时 15 毫秒
71.
Maxwell Mansolf 《Multivariate behavioral research》2016,51(5):698-717
Analytic bifactor rotations have been recently developed and made generally available, but they are not well understood. The Jennrich-Bentler analytic bifactor rotations (bi-quartimin and bi-geomin) are an alternative to, and arguably an improvement upon, the less technically sophisticated Schmid-Leiman orthogonalization. We review the technical details that underlie the Schmid-Leiman and Jennrich-Bentler bifactor rotations, using simulated data structures to illustrate important features and limitations. For the Schmid-Leiman, we review the problem of inaccurate parameter estimates caused by the linear dependencies, sometimes called “proportionality constraints,” that are required to expand a p correlated factors solution into a (p + 1) (bi)factor space. We also review the complexities involved when the data depart from perfect cluster structure (e.g., item cross-loading on group factors). For the Jennrich-Bentler rotations, we describe problems in parameter estimation caused by departures from perfect cluster structure. In addition, we illustrate the related problems of (a) solutions that are not invariant under different starting values (i.e., local minima problems) and (b) group factors collapsing onto the general factor. Recommendations are made for substantive researchers including examining all local minima and applying multiple exploratory techniques in an effort to identify an accurate model. 相似文献
72.
Irina Papazu 《Science as culture》2018,27(2):198-220
Through a joint community effort Denmark’s Renewable Energy Island Samsø became self-sufficient with renewable energy over a period of 10 years from 1997 to 2007. Today, the story about Samsø’s successful energy transition has become a global export and a widely known model of community building, public participation and shared ownership in renewable energy technologies and transition processes. What has allowed the Samsø narrative to travel so widely has been the effective ‘transition story’ created about the islanders’ efforts. This transition story, however, has become fixed with the years and has assumed an ideal-typical character. Meanwhile, the challenges and costs inherent in the complicated socio-material process of transition are underestimated and largely forgotten. While such transition stories are indeed inspiring, the ideal-typical narrative may stand in the way of the development of further local energy transitions, as challenging elements of the process are downplayed to strengthen the narrative power of the story. Ethnographic stories about Samsø complicate the island’s transition narrative and add nuance to the Samsø story, highlighting its discrepancies and problematizing the effects of such well-crafted transition narratives. This tendency toward the ‘storification’ of transition processes is not restricted to Samsø; it is employed as a tactics by environmental organizations operating globally. 相似文献
73.
Single crystals of the quasicrystal approximant phase xi'1-(Al-Pd-Mn) were deformed at a high temperature in three-point bending geometry. Two different mechanisms of plastic deformation were observed in this phase: one based on the motion of phason lines and the other based on dislocations. Line directions and Burgers vector directions of the dislocations were determined. The relative importances of the two mechanisms are discussed as a function of the sample orientation with respect to the bending geometry. 相似文献
74.
David Tyfield 《Science as culture》2013,22(4):497-500
Farmers have local knowledge relevant to the prospective assessment of biopharming—the farming of transgenic plants and animals genetically modified to produce pharmaceutical substances for use in humans or animals. However, biopharming regulatory regimes are being constructed in ways that render farmers' knowledge irrelevant. The exclusion of farmer knowledge is traceable to what we call its politico-epistemic unworkability as regulatory knowledge in regulatory regimes characterised not only by a focus on risk but also by pre-commitments to market-driven innovation and individual freedom of choice. Such innovation requires predictability in the regulatory environment, which is supplied in part through regulatory authorities' adoption of risk-assessment methodologies that both assume predictability (of natural and social worlds) and generate predictable decision outcomes. These regulatory approaches are co-constituted with scientific knowledge of gene flow developed through studies that can demonstrate a reliable and readily modellable decline of undesirable effect across space or time and therefore make possible the setting of clear and workable parameters for risk management. The farmers' knowledge discussed here highlights the extent to which this is a process of co-production. Moreover, it suggests that the claimed economic advantages of outdoor biopharming, achieved through the substitution of agronomic practice for laboratory infrastructure, depend both on natural processes that always also threaten to undermine confinement and on the habitus of successful farmers, which may in fact be incompatible with the kind of risk management that biopharming requires. 相似文献
75.
A functional near-infrared spectroscopy study of sustained attention to local and global target features 总被引:1,自引:0,他引:1
Despite a long history of vigilance research, the role of global and local feature discrimination in vigilance tasks has been relatively neglected. In this experiment participants performed a sustained attention task requiring either global or local shape stimuli discrimination. Reaction time to local feature discriminations was characterized by a quadratic trend over time-on-task with performance levels returning to initial levels late in the task. This trend did not occur in the global shape discrimination task. Functional near-infrared spectroscopy (fNIRS) was utilized in this study as an index of cerebral activation. In both tasks there was increased right hemisphere relative to left hemisphere oxygenation and right hemisphere oxygenation increased with time-on-task. Left hemisphere oxygenation, however, decreased slightly in the global task, but increased significantly in the local task as task duration increased. Indeed, total oxygenation, averaging both right and left, increased more with time-on-task in the local discrimination task. Both the performance and physiological results of this study indicate increased utilization of bilateral cerebral resources with time-on-task in the local, but not the global discrimination vigil. 相似文献
76.
Linguistic dependencies between non‐adjacent words have been shown to cause comprehension difficulty, compared with local dependencies. According to one class of sentence comprehension accounts, non‐local dependencies are difficult because they require the retrieval of the first dependent from memory when the second dependent is encountered. According to these memory‐based accounts, making the first dependent accessible at the time when the second dependent is encountered should help alleviate the difficulty associated with the processing of non‐local dependencies. In a dual‐task paradigm, participants read sentences that did or did not contain a non‐local dependency (i.e., object‐ and subject‐extracted cleft constructions) while simultaneously remembering a word. The memory task was aimed at making the word held in memory accessible throughout the sentence. In an object‐extracted cleft (e.g., It was Ellen whom John consulted…), the object (Ellen) must be retrieved from memory when consulted is encountered. In the critical manipulation, the memory word was identical to the verb's object (ELLEN). In these conditions, the extraction effect was reduced in the comprehension accuracy data and eliminated in the reading time data. These results add to the body of evidence supporting memory‐based accounts of syntactic complexity. 相似文献
77.
ABSTRACTWe studied interpretations of partly occluded shapes. Models that account for amodal completion mostly deal with local and global contour characteristics. In the current study, we were interested in the effects of colour on local and global contour completions. In our stimuli, local contour completions comprised simple linear extensions of the partly occluded contours, whereas global contour completions accounted for global shape regularities. Our stimuli were designed such that the visible surface colour could also be completed in a local or global fashion, being consistent or inconsistent with contour completions. We tested the preferred interpretations of the partly occluded shapes by using a sequential matching task. Participants had to judge whether a test shape could be a previously shown partly occluded shape. We found that interpretations of partly occluded shapes depend on both colour and contour characteristics. Additional time bin analyses revealed that for fast responses colour and contour completions already depend on the visible context of the partly occluded shapes, while for slow responses the congruency between colour and contour completions play a role as well. 相似文献
78.
Rene Bouwen Dian Marie Hosking 《European Journal of Work and Organizational Psychology》2013,22(2):267-274
In this concluding article we further reflect on relational readings of organizational learning and how they can contribute to organization studies and organizing practices. As has been seen, the root metaphor of “organizational learning” takes a variety of forms. These include “product-oriented” pictures such as learning curves, strategy, and business processes, and the generative metaphor of organizational learning as conversations-for-new-possibilities. This special issue highlights the contribution of learning-as-conversations, especially in those organizational instances where the organizing is “in-the-making” and where the creation of a transitional space can be a new meeting ground for participants. In an increasingly globalized world we are more and more in need of the ability to construct such transitional and possibility-enabling practices. It can be a task of work and organizational psychology to contribute ideas and practices for this endeavour. 相似文献
79.
80.
Within the curtilage of Lincoln Cathedral lie buried the remains of three very different people to whom sainthood has been attributed: Saint Hugh, Bishop of Lincoln (d.1200); 'Little Saint Hugh' (d.1255), a child maliciously alleged to have been murdered by the local Jewish community; and Edward King (d.1910), Anglican Bishop of Lincoln. Hugh is a saint of the Catholic Church, commemorated by Catholics and Anglicans; 'Little Saint Hugh' was for a short while acclaimed by local people as a saint but never officially recognised as one; Edward King is commemorated by Anglicans but not formally recognised as a saint. The marked difference of approach to the attribution of sainthood between local Christians and Catholic Church authorities, as well as between Catholics and Anglicans, is illustrated by this case study, which raises important ecumenical questions: 'What makes a saint?’, ‘How are non-Catholics to regard the Roman Catholic procedure for beatification and canonisation?’, ‘To what extent can there be fully ecumenical calendars of local saints?’, ‘Does beatification offer a way forward by which Catholics may recognise the holiness of non-Catholic Christians?’ 相似文献