全文获取类型
收费全文 | 3983篇 |
免费 | 469篇 |
国内免费 | 172篇 |
专业分类
4624篇 |
出版年
2024年 | 25篇 |
2023年 | 115篇 |
2022年 | 74篇 |
2021年 | 135篇 |
2020年 | 217篇 |
2019年 | 232篇 |
2018年 | 181篇 |
2017年 | 209篇 |
2016年 | 227篇 |
2015年 | 162篇 |
2014年 | 168篇 |
2013年 | 490篇 |
2012年 | 122篇 |
2011年 | 153篇 |
2010年 | 100篇 |
2009年 | 160篇 |
2008年 | 159篇 |
2007年 | 155篇 |
2006年 | 146篇 |
2005年 | 140篇 |
2004年 | 103篇 |
2003年 | 100篇 |
2002年 | 101篇 |
2001年 | 99篇 |
2000年 | 78篇 |
1999年 | 84篇 |
1998年 | 61篇 |
1997年 | 48篇 |
1996年 | 51篇 |
1995年 | 49篇 |
1994年 | 44篇 |
1993年 | 51篇 |
1992年 | 39篇 |
1991年 | 39篇 |
1990年 | 41篇 |
1989年 | 23篇 |
1988年 | 27篇 |
1987年 | 23篇 |
1986年 | 20篇 |
1985年 | 19篇 |
1984年 | 14篇 |
1983年 | 10篇 |
1982年 | 18篇 |
1981年 | 11篇 |
1980年 | 16篇 |
1979年 | 16篇 |
1978年 | 28篇 |
1977年 | 19篇 |
1976年 | 17篇 |
1975年 | 3篇 |
排序方式: 共有4624条查询结果,搜索用时 15 毫秒
111.
Joël Billieux Alexandre Heeren Lucien Rochat Pierre Maurage Sophie Bayard Romain Bet Chrystel Besche-Richard Gaëlle Challet-Bouju Arnaud Carré Gaëtan Devos Maèva Flayelle Fabien Gierski Marie Grall-Bronnec Laurence Kern Yasser Khazaal Christophe Lançon Séverine Lannoy George A. Michael Stéphane Raffard Lucia Romo Martial Van der Linden Aline Wéry Natale Canale Daniel L. King Adriano Schimmenti Stéphanie Baggio 《Journal of personality》2021,89(6):1252-1262
112.
The contributions of Murray Sidman to the field of behavior analysis have helped to put the field on a progressive path. In this paper we describe three areas as examples, drawn from the larger set of his notable contributions: the analysis of stimulus equivalence in a way that has fostered a behavior-analytic approach to derived stimulus relations and symbolic meaning; the observation and measurement of individual behavior through time; and his stance against punitive applied methods. In each of these areas Sidman was a dedicated behaviorist, avoiding appeals to mentalistic or transcendental forces, opposing hypothetical mediational accounts, and taking a functional and contextual approach. Clarity of assumptions was at the heart of Sidman's effective scientific practices and there is no reason to think that those same assumptions will not carry us further, as evidence mounts in support of these views on psychological research and practice. 相似文献
113.
There are individual differences in the rates of cognitive decline across later adulthood. Personality traits are among the factors that may account for these differences. The current project investigated whether personality traits were associated with trajectories of cognitive decline, and whether the associations were different before and after dementia diagnosis. The data was analyzed using linear mixed effects regression. Across study aims is a focus on replicability and generalizability. Each question was addressed in four independent longitudinal studies (EAS, MAP, ROS, SATSA), then meta-analyzed, providing estimates of replicability. Results indicated that low neuroticism and high openness were associated with total cognitive function. We detected evidence for cognitive decline in all four samples, and openness was associated with decline post dementia diagnosis. 相似文献
114.
To systematically examine the relation between motor milestone onset and disruption of night sleep in infancy, three families kept microgenetic, prospective, daily checklist diaries of their infants’ motor behavior and sleep (197-313 observation days; 19,000 diary entries). Process control and interrupted time series analyses examined whether deviations from the moving average for night wakings and evening sleep duration were temporally linked to motor skill onset and tested for meaningful differences in individual sleep patterns before and after skill onset. Model assumptions defined skill onset as first day of occurrence or as mastery and moving average windows as 3, 7, or 14 days. Changes in infants’ sleep patterns were associated with changing expertise for motor milestones. The temporal relation varied depending on infant and sleep parameter. Intensive longitudinal data collection may increase our understanding of micro-events in infant development. 相似文献
115.
Michele Rivas Thomas Killian Carol Rinke Rebecca Cole 《Journal of Addictions & Offender Counseling》2021,42(1):19-34
In this phenomenological study, we examined the lived experiences of 10 female offenders under community supervision. Findings include five essential themes. We propose clinical implications and actionable service recommendations for clinical mental health counselors working with this population. 相似文献
116.
Alexandra C. O'Grady Sharon A. Reeve Kenneth F. Reeve Jason C. Vladescu Meghan Deshais 《Behavioral Interventions》2021,36(1):67-92
Accurate analysis of data is vital to the validation of interventions. As such, there has been a recent increase in studies evaluating visual analysis training procedures. However, past investigations have not evaluated direct and indirect visual analysis training methods with matched instructional content that was systematically designed. Furthermore, training has rarely included assessment of generalization and maintenance of visual analysis skills. The purpose of the current dissertation study was to compare the effectiveness and efficiency of (a) computer‐based training, (b) lecture formats with and (c) without the opportunity to pause, and (d) a no‐training group to teach visual analysis of AB graphs to university students. To make these formats directly comparable, the instructional content was equated by ensuring information and examples were identical across the three training procedures. Eighty‐three students were randomly assigned to one of the four groups. Results showed that all three training formats produced increases in accurate responding compared to the no‐training group. Visual analysis skills generalized to novel graphs and maintained approximately 2 weeks following all trainings. These results suggest that structured approaches that are carefully designed to train visual analysis are effective and lead to gains that generalize and maintain in the absence of training. 相似文献
117.
Urban mobility has been severely impacted by the coronavirus pandemic, with public transport (PT) particularly affected due to infection risks and fears. The promotion of alternative modes of transport such as bike sharing systems (BSS) has gained a new drive as a possible way of providing an alternative to PT and limit a potential surge in private car use.In this study, we provide insights on the motivations for using bike sharing during the COVID-19 pandemic through a survey to the BSS users of Lisbon (entitled GIRA). Before the coronavirus pandemic, the most influential motivations were those connected to the BSS’ Service Coverage & Quality (such as the convenient location of BSS stations near the users’ destinations or the availability of shared e-bikes) as well as to the Personal Interests & Well-being of BSS users (namely the pleasure of cycling as well as the perceived environmental and health benefits). With the emergence of the COVID-19 pandemic, although the motivations of Service Coverage & Quality continue to be the most valued by respondents, the motivations associated with using BSS to avoid PT and to maintain a social distance during the trip are now as important as the motivations linked to Personal Interests & Well-being. Furthermore, new users who have joined bike sharing during COVID-19 give more importance to the Social Influence (such as seeing other people using the system or the influence of their social circle) comparatively to those who were already users before the pandemic and continue to use BSS.This research provides evidence on the importance of bike sharing to the resilience of urban transport systems, particularly during disruptive public health crises. It supports that BSS should continue to operate during the coronavirus pandemic as such systems offer a transport alternative to PT that is perceived to be capable of preserving a physical distance. 相似文献
118.
In works of Eleanor Rosch “natural” concepts was introduced that reflect a high correlated structure of features of objects of the external world. Prototypes of the “natural” concepts are clearest cases of objects that reflect this highly correlated structure. The same high correlated structure manifested in the “natural” phenotypical classification. To formalize this highly correlated structure, we define a special type of probabilistic causal relations and then probabilistic formal concepts as a cyclically connected probabilistic causal relations. Based on these definitions, we developed a method of prototypes discovery and illustrate it on the example of digits’ prototypes discovery. 相似文献
119.
Physical exercise is an effective tool for improving public health, but the general population exercises too little. Drawing on recent theorizing on the combined role of boredom and self-control in guiding goal-directed behavior, we test the hypothesis that individual differences in boredom and self-control differentiate high from low exercisers. The role of boredom as a non-adaptive disposition is of particular interest, because research on boredom in sports is scarce. Here, we investigate the role of such individual differences in self-reported weekly exercise behavior (in minutes) in a sample of N = 507 participants (n = 200 female, Mage = 36.43 (±9.54)). We used the robust variant of Mahalanobis distance to detect and remove n = 51 multivariate outliers and then performed latent profile analysis to assess if boredom (boredom proneness; exercise-related boredom) and self-control (trait self-control; if-then planning) combine into identifiable latent profiles. In line with theoretical considerations, the Bayesian Information Criterion favored a solution with two latent profiles. One profile was characterized by higher-than-average exercise-related boredom and boredom proneness and lower-than-average self-control and if-then planning values. This pattern was reversed for the second profile. A one-sided Bayesian two-sample t-test supported the hypothesis that the first profile is associated with less exercise behavior than the second profile, BF = 16.93. Our results foster the notion of self-control and if-then planning as adaptive dispositions. More importantly, they point to an important role of boredom in the exercise setting: exercise-related boredom and getting easily bored in general are associated with less exercise activity. This is in line with recent theorizing on boredoms' and self-controls’ function in guiding goal-directed behavior. 相似文献
120.
ObjectivesDespite a growing body of literature on athletes' migration, the mobility and migration experiences of coaches have received limited attention. In this study, we explored the mobility and migration experiences of transnational coaches operating within the Israeli handball context.DesignA qualitative study was conducted, underpinned by our relativist ontology and a constructionist epistemological position.MethodsEight male professionals (e.g., national team coaches, senior team coaches, youth coaches), working (currently, or most recently) in national teams and clubs, who migrated to Israeli handball within the past five years were interviewed. A thematic analysis, integrating inductive and deductive reasoning, was applied in data analysis. Meticulousness was enhanced by focusing on a worthy topic, maintaining credibility, critical friends, producing generalization, and making a significant contribution.ResultsThe analysis yielded raw-data codes, further organized into lower-order themes and three higher-order themes reflecting transnational coaches' migration and mobility experiences within the Israeli handball context, including (a) cultural transition, (b) cultural adaption, and (c) coaches' personal insights about mobility and migration. The findings are conceptually analyzed and discussed in relation to the previous research on coaches' career migration.Discussion and conclusionThe findings emphasize the complexity of the migration process, accompanied by varying motivations, demands and barriers, active decision-making; all within the framework of cultural adaptation. The participants endorsed a transnational coaching career, driven by their open-mind mentality and personal-professional growth. 相似文献