首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1308篇
  免费   67篇
  国内免费   1篇
  2024年   2篇
  2023年   14篇
  2022年   24篇
  2021年   25篇
  2020年   37篇
  2019年   41篇
  2018年   95篇
  2017年   88篇
  2016年   64篇
  2015年   35篇
  2014年   37篇
  2013年   165篇
  2012年   82篇
  2011年   78篇
  2010年   60篇
  2009年   42篇
  2008年   79篇
  2007年   61篇
  2006年   53篇
  2005年   46篇
  2004年   41篇
  2003年   33篇
  2002年   28篇
  2001年   12篇
  2000年   10篇
  1999年   17篇
  1998年   6篇
  1997年   12篇
  1996年   6篇
  1995年   3篇
  1994年   11篇
  1993年   5篇
  1992年   7篇
  1991年   3篇
  1990年   2篇
  1989年   5篇
  1988年   3篇
  1987年   4篇
  1986年   2篇
  1985年   5篇
  1982年   2篇
  1981年   6篇
  1980年   2篇
  1976年   2篇
  1974年   4篇
  1972年   2篇
  1968年   2篇
  1965年   2篇
  1962年   2篇
  1960年   1篇
排序方式: 共有1376条查询结果,搜索用时 31 毫秒
981.
The present study investigated relationships between dimensions of anxiety, age, gender, and school adjustment in students with specific learning disabilities (SLD). The 177 students with SLD completed measures of anxiety and school adjustment. The results of a hierarchical regression analysis indicated that age and gender together were not significant predictors of attitude to school, and that after the influence of age and gender had been removed students with more physiological and social anxiety, but less worry tended to have poorer attitudes toward school. A second hierarchical regression indicated that younger students reported more negative attitudes toward teachers, and after controlling for age and gender, students with more social anxiety reported more negative attitudes toward teachers. Implications for school personnel are discussed.  相似文献   
982.
When military service members deploy, they move outside the immediate boundary of their families. However, because boundaries are permeable, service members remain a psychological part of their families in spite of their physical absence. The extent of service members’ continued involvement in daily family life is likely tied to their non-deployed family members’ actions to manage this boundary. In the current study, we were interested in identifying non-deployed family members’ actions to either promote, or limit, service members’ involvement in daily family life during deployment. These actions by family members constitute boundary management behaviors. We collected qualitative data from a sample of Army reservists (N = 13) and their household family members (N = 15). Findings indicated that family members used a variety of boundary management behaviors during deployment, some of which promoted reservists’ involvement, and others which limited it. In addition, boundary management behaviors varied by who they targeted, their intentionality, and their implications for reservists’ well-being. Findings illustrate the value in equipping military families with language that enables them to communicate openly about the significance of their boundary management behavior over the course of deployment so that they may arrive at a balance between stretching and restricting boundaries that best suits their unique needs.  相似文献   
983.
Through a critical engagement with Merleau-Ponty’s discussion of the concepts of nature, life, and behavior, and with contemporary accounts of animal groups, this article argues that animal groups exhibit sociality and that sociality is a fundamental ontological condition. I situate my account in relation to the superorganism and selfish individual accounts of animal groups in recent biology and zoology. I argue that both accounts are inadequate. I propose an alternative account of animal groups and animal sociality through a Merleau-Pontian inspired definition of behavior. I criticize Merleau-Ponty’s individualistic prejudice, but show that his philosophy contains the resources necessary to overcome this bias. I define behavior as a holistic, ongoing, meaningful and Umwelt-oriented intrinsically configured expression of living forms of existence. By looking at cases of animal groups drawn from contemporary studies in zoology and behavioral ecology, I show that animal groups, in the fact that they behave, manifest themselves to be a fundamental form of existence, namely, the social form of existence.  相似文献   
984.
Lluís Oviedo 《Zygon》2005,40(2):351-362
Abstract. In the last century science and technology have been viewed as guilty of contributing to the modern secularization process and also to a crisis in religion. The extent of this influence is less clear today: while technology is stronger, and an easy target for any kind of social and cultural criticism, science seems weaker than it used to. The aim of this commentary is to examine in a critical way the arguments for and against scientific and technological involvement in the crisis religion faces today. In the end, a revision of the future of religion is called into question, especially in the light of a more “technological theology.”  相似文献   
985.
La relation entre les caractéristiques du travail, le bien-être des étudiants et la performance a étéévaluée à partir du modèle de Karasck & Theorell ≪Travail, exigences, contrôle, soutien≫ (1990). Un échantillon d'étudiants portugais ( N = 825) a répondu à un questionnaire comprenant des mesures du contrôle et des exigences du travail universitaire, du soutien des pairs, de la satisfaction relative à la vie universitaire, de l'anxiété/dépression et des résultats aux examens. Il apparut, comme dans d'aures contextes de travail, que la satisfaction des étudiants pour ce qui est de la vie universitaire, ainsi que les niveaux d'anxiété/dépression étaient fortement dépendants de leur perception des caractéristiques du travail. Les niveaux de satisfaction ont un effet direct sur la performance et agissent sur la relation entre la maîtrise du travail universitaire et la performance.
The relationship between work characteristics, student well-being and performance was assessed, based upon Karasek and Theorell's (1990 ) Job Demands–Control–Support model. A sample of Portuguese university students ( N = 825) answered a questionnaire comprising measures of academic work demands and control, peer support, satisfaction with academic life, anxiety/depression and academic performance. Results suggested that, similar to other work contexts, student satisfaction with academic life and anxiety/depression levels are strongly dependent on their perceptions of work characteristics. Levels of satisfaction have a direct impact on student performance and mediate the relationship between academic work control and performance.  相似文献   
986.
The objectives of this study were to propose a method of presenting dynamic facial expressions to experimental subjects, in order to investigate human perception of avatar's facial expressions of different levels of emotional intensity. The investigation concerned how perception varies according to the strength of facial expression, as well as according to an avatar's gender. To accomplish these goals, we generated a male and a female virtual avatar with five levels of intensity of happiness and anger using a morphing technique. We then recruited 16 normal healthy subjects and measured each subject's emotional reaction by scoring affective arousal and valence after showing them the avatar's face. Through this study, we were able to investigate human perceptual characteristics evoked by male and female avatars' graduated facial expressions of happiness and anger. In addition, we were able to identify that a virtual avatar's facial expression could affect human emotion in different ways according to the avatar's gender and the intensity of its facial expressions. However, we could also see that virtual faces have some limitations because they are not real, so subjects recognized the expressions well, but were not influenced to the same extent. Although a virtual avatar has some limitations in conveying its emotion using facial expressions, this study is significant in that it shows that a new potential exists to use or manipulate emotional intensity by controlling a virtual avatar's facial expression linearly using a morphing technique. Therefore, it is predicted that this technique may be used for assessing emotional characteristics of humans, and may be of particular benefit for work with people with emotional disorders through a presentation of dynamic expression of various emotional intensities.  相似文献   
987.
We propose a framework which extends Antitonic Logic Programs [Damásio and Pereira, in: Proc. 6th Int. Conf. on Logic Programming and Nonmonotonic Reasoning, Springer, 2001, p. 748] to an arbitrary complete bilattice of truth-values, where belief and doubt are explicitly represented. Inspired by Ginsberg and Fitting's bilattice approaches, this framework allows a precise definition of important operators found in logic programming, such as explicit and default negation. In particular, it leads to a natural semantical integration of explicit and default negation through the Coherence Principle [Pereira and Alferes, in: European Conference on Artificial Intelligence, 1992, p. 102], according to which explicit negation entails default negation. We then define Coherent Answer Sets, and the Paraconsistent Well-founded Model semantics, generalizing many paraconsistent semantics for logic programs. In particular, Paraconsistent Well-Founded Semantics with eXplicit negation (WFSXp) [Alferes et al., J. Automated Reas. 14 (1) (1995) 93–147; Damásio, PhD thesis, 1996]. The framework is an extension of Antitonic Logic Programs for most cases, and is general enough to capture Probabilistic Deductive Databases, Possibilistic Logic Programming, Hybrid Probabilistic Logic Programs, and Fuzzy Logic Programming. Thus, we have a powerful mathematical formalism for dealing simultaneously with default, paraconsistency, and uncertainty reasoning. Results are provided about how our semantical framework deals with inconsistent information and with its propagation by the rules of the program.  相似文献   
988.
A virtual reality assessment and training system for unilateral neglect.   总被引:1,自引:0,他引:1  
Patients with unilateral neglect have problems reporting, responding, or orienting to novel or meaningful stimuli that is presented to the side opposite to that of a brain lesion. This creates a serous problem in regards to daily living activities. However, the established methods for assessing and training of unilateral neglect patients have several deficits. Recently, virtual reality (VR) technologies have been used as an assessment and treatment tool for rehabilitation. Hence, this study designed a VR system to assess and train unilateral neglect patients. In addition, the suitability and feasibility of our VR system for unilateral neglect patients was verified.  相似文献   
989.
In this research, the effectiveness of neurofeedback, along with virtual reality (VR), in reducing the level of inattention and impulsiveness was investigated. Twenty-eight male participants, aged 14-18, with social problems, took part in this study. They were separated into three groups: a control group, a VR group, and a non-VR group. The VR and non-VR groups underwent eight sessions of neurofeedback training over 2 weeks, while the control group just waited during the same period. The VR group used a head-mounted display (HMD) and a head tracker, which let them look around the virtual world. Conversely, the non-VR group used only a computer monitor with a fixed viewpoint. All participants performed a continuous performance task (CPT) before and after the complete training session. The results showed that both the VR and non-VR groups achieved better scores in the CPT after the training session, while the control group showed no significant difference. Compared with the other groups, the VR group presented a tendency to get better results, suggesting that immersive VR is applicable to neurofeedback for the rehabilitation of inattention and impulsiveness.  相似文献   
990.
Amnestic mild cognitive impairment (aMCI) patients carry a greater risk of conversion to Alzheimer's disease (AD). Therefore, the International Working Group (IWG) on AD aims to consider some cases of aMCI as symptomatic prodromal AD. The core diagnostic marker of AD is a significant and progressive memory deficit, and the Free and Cued Selective Reminding Test (FCSRT) was recommended by the IWG to test memory in cases of possible prodromal AD. This study aims to investigate whether the performance on the FCSRT would enhance the ability to predict conversion to AD in an aMCI group. A longitudinal study was conducted on 88 aMCI patients, and neuropsychological tests were analysed on the relative risk of conversion to AD. During follow‐up (23.82 months), 33% of the aMCI population converted to AD. An impaired FCSRT TR was significantly associated with the risk of conversion to dementia, with a mean time to conversion of 25 months. The FCSRT demonstrates utility for detecting AD at its prodromal stage, thus supporting its use as a valid clinical marker.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号