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281.
This article has dual aims. First, it proposes an explicit focus on emotion as a means of enriching thinking about employee health and wellbeing in the higher education (HE) sector. Second, in order to bring conceptual clarity to a highly complex area, it presents and illustrates (using a fictional scenario) a framework for understanding emotion. The article begins with an overview of recent published research relevant to the HE workplace as an affective domain and argues that research with an explicit focus on emotion is a so far little exploited means of investigating aspects of working life in HE that have implications for health and professional practice. It then presents a conceptualisation that views emotion as a system within which individual and environmental factors interact in highly intricate ways in emotional experience (Lazarus in Emotion and adaptation. Oxford University Press, Oxford, 1991, 1999). Viewed from this perspective ‘emotions’, as opposed to less powerful ‘affects’ (such as attitudes, beliefs and opinions), are uniquely relevant to physical and mental health. The article concludes by considering implications arising from this perspective on emotion for researchers and other practitioners in HE with an interest in how the university workplace impacts on the wellbeing of an increasingly diverse workforce.  相似文献   
282.
In three experiments, we examined the effect of response-outcome relations on human ratings of causal efficacy and demonstrated that such efficacy ratings transfer to novel situations through derived stimulus relations. Causal efficacy ratings were higher, and probability of an outcome given a response was lower, for a differential reinforcement of high rate schedule than for either a differential reinforcement of low rate schedule (Experiment 1) or a variable interval schedule (Experiment 2). In Experiment 3, we employed schedules that were equated for outcome probability and noted that ratings of causal efficacy and the rate of response were higher on a variable ratio than on a variable interval schedule. For participants in all three experiments, causal efficacy ratings transferred to the stimulus present during each schedule and generalized to novel stimuli through derived relations. The results corroborate the view that schedules are a determinant of both response rates and causal efficacy ratings. In addition, the novel demonstration of a mechanism of generalization of these ratings via derived relations has clinical implications.  相似文献   
283.
We used four different methods to determine the best means of assessing over 200 preservice elementary teachers’ growth in knowledge of models and their use in K-8 classrooms while participating in the Science Capstone course that focused on the unifying themes of models in science. Each assessment method probed a different aspect of models (from growth in scientific use to need for greater emphasis on the role and use of models) and each used a different method of gathering student responses (Likert-type responses to concept maps). We determined that growth in student knowledge was demonstrated by all instruments, but some instruments were more useful than others for determining preservice elementary teachers’ prior knowledge as well as growth in knowledge of models necessary for K-8 teachers.  相似文献   
284.
ObjectivesTo determine the impact of child sexual abuse (CSA) on adult sexual behaviors and outcomes over three age periods.MethodsA longitudinal study of a birth cohort born in Dunedin, New Zealand in 1972/1973 was used. Information on CSA was sought at age 26, and on sexual behaviors and outcomes at ages 21, 26, and 32. Comparisons were over the whole period from age 18 to 32, then for the three age periods from age 18 to 21, 21 to 26, and 26 to 32, adjusting for measures of family environment.ResultsOverall, 465 women and 471 men (91.9% of the surviving cohort) answered questions about CSA. Contact CSA was reported by 30.3% of women and 9.1% of men. For abused women, significantly increased rates were observed for number of sexual partners, unhappy pregnancies, abortion, and sexually transmitted infections from age 18 to 21; with rates approaching those of nonabused over time. Conversely, for abused men rates were not significantly elevated in the youngest age period, but were for number of partners from age 26 to 32 and acquisition of herpes simplex virus type 2 from age 21 to 32.ConclusionsGender and age are critical when considering the effect of CSA. While the profound early impact of CSA demonstrated for women appears to lessen with age, abused men appear to carry increased risks into adulthood.Practice implicationsCSA is common and should be considered when young women present with unwanted conceptions or seek multiple terminations, and when men continue to have high risk sexual behavior into adulthood. Furthermore, if CSA is disclosed, sexual risks in adulthood need to be considered.  相似文献   
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Current perspectives in cognitive linguistics highlight the conceptual nature of cognition and how the conceptual metaphors we hold affect ways we think, talk and act. This study examines medical educators’ metaphoric talk to understand ways in which assessment relationships with students are conceptualised in order to understand why educators might ‘fail to fail’ underperformance in medical students. We conducted 10 focus groups with 70 educators at two UK medical schools. The audiotapes were transcribed and analysed using systematic metaphor analysis. The analysis revealed six over‐arching metaphors associated with the target domain of assessment relationships, i.e. assessment relationships as journey, war, sport, parentalism, machine and medicine. While medical educators conceptualised students’ academic failure in relatively innocuous ways (e.g. students’ failure to arrive at their destination; journey), they also conceptualised failure in harmful ways (e.g. students’ death; war). If medical educators hold the concept of assessment relationships as war, it is perhaps unsurprising that they are reluctant to fail students. We discuss these findings in light of existing literature and provide recommendations for designing training sessions through which assessors can address reluctance to fail underperformance. Such faculty development may aid assessors in identifying and using alternative metaphors to conceptualise the assessment relationship.  相似文献   
287.
What Are the New Implications of Chaos for Unpredictability?   总被引:1,自引:0,他引:1  
From the beginning of chaos research until today, the unpredictabilityof chaos has been a central theme. It is widely believed andclaimed by philosophers, mathematicians and physicists alikethat chaos has a new implication for unpredictability, meaningthat chaotic systems are unpredictable in a way that other deterministicsystems are not. Hence, one might expect that the question ‘Whatare the new implications of chaos for unpredictability?’has already been answered in a satisfactory way. However, thisis not the case. I will critically evaluate the existing answersand argue that they do not fit the bill. Then I will approachthis question by showing that chaos can be defined via mixing,which has never before been explicitly argued for. Based onthis insight, I will propose that the sought-after new implicationof chaos for unpredictability is the following: for predictingany event, all sufficiently past events are approximately probabilisticallyirrelevant.
  1. Introduction
  2. Dynamical Systems and Unpredictability
    2.1 Dynamical systems
    2.2 Natural invariant measures
    2.3Unpredictability
  3. Chaos
    3.1 Defining chaos
    3.2 Definingchaos via mixing
  4. Criticism of Answers in the Literature
    4.1 Asymptotic unpredictability?
    4.2 Unpredictability dueto rapid or exponential divergence?
    4.3 Macro-predictabilityand Micro-unpredictability?
  5. A General New Implication ofChaos for Unpredictability
    5.1Approximate probabilistic irrelevance
    5.2 Sufficiently pastevents are approximately probabilisticallyirrelevant for predictions
  6. Conclusion
  相似文献   
288.
ABSTRACT

Research into dust deposition rates on the wall paintings in the State Apartments at the Palace of Westminster, London, UK, began during the restoration of the encaustic floor tiles. The study has broadened to inform day-to-day preventive care for the extensive fine art collections on display and the intricately decorated Gothic interiors, providing a powerful tool for the forthcoming restoration and renewal of the Palace. Different monitoring methods, using optical microscopy, macro-photography and software-based image analysis, were investigated. Qualitative analysis with SEM-EDX and optical microscopy allowed the identification of a number of anthropogenic, geogenic and biological sources of particulate matter, while quantitative results elucidated deposition trends, highlighting both seasonal and works-related impacts. Results indicated that mitigation measures taken to protect works of art and limit the diffusion and deposition of particulate matter on surrounding surfaces were successful. A new dust monitoring method, based on imaging of vertical surfaces and on a recently developed image analysis workflow (CHIJ) operated in open-source software (ImageJ) was trialled alongside more traditional methods for measuring dust deposition through collection of particulate matter on proxies. Results showed significant discrepancies between data acquired directly on wall painting surfaces as compared to horizontal glass slides. The advantages, limitations and complementarity of both monitoring methods were identified, and their potential contributions to the development of data-driven conservation approaches for heritage sites were assessed. The relatively low-tech methods and equipment used present useful and adapted tools for collection managers and conservators to inform their decision-making processes.  相似文献   
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290.
Spatial thinking predicts Science, Technology, Engineering, and Mathematics achievement, yet is often absent from educational policy. We provide benchmarks of teachers' usage and perceptions of spatial activities in practice in the reception classroom (first year of primary school). In this questionnaire study of educational professionals working in the reception classroom in England (N = 104), we found that spatial and numeracy activities were perceived as significantly less important, and were reportedly completed significantly less often, than literacy or life skills. Despite the lower perceived importance of spatial skills in curriculum guidance in England, rates of reported spatial activity use were encouragingly high and were broadly comparable to those of numeracy. Teachers had moderate anxiety levels for both spatial and mathematics domains. The findings highlight a need to elevate teachers' understanding of the importance of developing children's early spatial and numeracy skills, which may begin with efforts to reduce spatial and mathematics anxiety.  相似文献   
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