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   1849篇
  免费   15篇
  1864篇
  2024年   30篇
  2023年   29篇
  2022年   39篇
  2021年   60篇
  2020年   50篇
  2019年   58篇
  2018年   108篇
  2017年   84篇
  2016年   76篇
  2015年   54篇
  2014年   64篇
  2013年   213篇
  2012年   134篇
  2011年   125篇
  2010年   97篇
  2009年   41篇
  2008年   105篇
  2007年   73篇
  2006年   72篇
  2005年   51篇
  2004年   43篇
  2003年   28篇
  2002年   26篇
  2001年   12篇
  2000年   20篇
  1999年   20篇
  1998年   9篇
  1995年   3篇
  1994年   6篇
  1993年   5篇
  1992年   7篇
  1991年   4篇
  1989年   4篇
  1987年   6篇
  1985年   3篇
  1979年   3篇
  1974年   5篇
  1973年   8篇
  1972年   4篇
  1971年   9篇
  1969年   5篇
  1968年   11篇
  1967年   5篇
  1966年   7篇
  1965年   5篇
  1963年   5篇
  1961年   4篇
  1960年   3篇
  1958年   2篇
  1956年   3篇
排序方式: 共有1864条查询结果,搜索用时 15 毫秒
871.
    
Gonorrhoea infections are frequently diagnosed at extragenital locations in asymptomatic individuals and are historically related to poor recovery in culture, which hinders antimicrobial susceptibility testing. The aim of this study was to evaluate recovery rates of Neisseria gonorrhoeae by culture among asymptomatic individuals who tested positive by nucleic acid amplification tests between 2018 and 2019 in Barcelona (Spain). In total, 10 396 individuals were tested for N. gonorrhoeae on first-void urine, rectal, pharyngeal and/or vaginal swabs depending on sexual behaviour. Overall infection prevalence was 5·5% (95% confidence interval [CI] 5·0–5·9). Seven hundred and ten samples were positive corresponding to 567 individuals. The most common site of infection was the pharynx (71·3%), followed by rectum (23·1%) and genitals (4·7%) (P < 0·0001). The N. gonorrhoeae recovery rate in culture, time from positive screening to culture specimen and inoculation delay were calculated. Recovery rate was 21·7% in pharynx, 66·9% in rectum and 37·0% in genitals (25·0% vagina, 71·4% urethra) (P < 0·0001). Median culture collection time was 1 [0; 3] days, and median inoculation delay was 5·01 [4·99–7·99] h, with no impact on N. gonorrhoeae recovery, P = 0·8367 and P = 0·7670, respectively. Despite efforts towards optimizing pre-analytical conditions, the N. gonorrhoeae recovery rate in asymptomatic individuals is unacceptably low (especially for pharynx), representing a problem for monitoring antimicrobial-resistant infections.  相似文献   
872.
    
There is growing interest in awake craniotomies, but some clinicians are concerned that such procedures are poorly tolerated by patients. Therefore, we conducted a study to assess this phenomenon. In this prospective qualitative study, 68 patients who qualified for awake craniotomy were asked to complete the Hospital Anxiety and Depression Scale (HADS)—two days before the surgery and visual analogue scales (VAS) for pain and stress, two days before the surgery and again about two days after. In addition, after their surgery, they took part in a structured interview about what helped them prepare for and cope with the surgery. Most patients tolerated the awake surgery well, scoring low on stress and pain scales. They reported a lower level of stress during the surgery (when questioned afterwards) than before it. Intensity of stress before the surgery correlated negatively with age, positively with HADS anxiety score and positively with stress subsequently experienced during surgery. The level of stress during surgery was associated with stress experienced before the surgery, pain and HADS anxiety and depression scores. Severity of pain during the surgery was positively correlated with stress during surgery and HADS depression and anxiety scores before the surgery. There was no correlation between stress, pain, anxiety and depression and the location of the lesion. Patients have a high tolerance for awake craniotomy. Various factors have an impact on how well patients cope with the operation. Extensive preoperative preparation should be considered a key part of the procedure.  相似文献   
873.
    
While theological discourse on love traditionally bifurcates between love as a body‐bound passion and its superior and disembodied spiritual counterpart, a growing number of accounts have recently challenged the traditional division arguing for the fundamental unity of the phenomenon of love. Could such a dichotomy be overcome if one reversed the conventional hierarchy between bodily erotic and intellectual agapeic love and made erotic love between man and woman the fundamental paradigm of all kinds of loves? Could the reversal recuperate the affective aspect that has traditionally been downplayed? An answer to these questions is explored through an imaginary dialogue between Jean‐Luc Marion's phenomenology of one‐way erotic love and John Paul II's theology of embodied love.  相似文献   
874.
  总被引:1,自引:1,他引:0  
The conditions under which symmetry and equivalence relations develop are still controversial. This paper reports three experiments that attempt to analyze the impact of multiple-exemplar training (MET) in receptive symmetry on the emergence of visual-visual equivalence relations with a very young child, Gloria. At the age of 15 months 24 days (15m24d), Gloria was tested for receptive symmetry and naming and showed no evidence of either repertoire. In the first experiment, MET in immediate and delayed receptive symmetrical responding or listener behavior (from object-sound to immediate and delayed sound-object selection) proceeded for one month with 10 different objects. This was followed, at 16m25d, by a second test conducted with six new objects. Gloria showed generalized receptive symmetry with a 3-hr delay; however no evidence of naming with new objects was found. Experiment 2 began at 17m with the aim of establishing derived visual-visual equivalence relations using a matching-to-sample format with two comparisons. Visual-visual equivalence responding emerged at 19m, although Gloria still had not shown evidence of naming. Experiment 3 (22m to 23m25d) used a three-comparison matching-to-sample procedure to establish visual-visual equivalence. Equivalence responding emerged as in Experiment 2, and naming emerged by the end of Experiment 3. Results are discussed in terms of the history of training in bidirectional relations responsible for the emergence of visual-visual equivalence relations and of their implications for current theories of stimulus equivalence.  相似文献   
875.
    
Background: Levels of stress and burnout increase during nursing education. This development has consequences for nursing students' health, learning, competence, and interest in quality issues in health care. Design: In a randomized controlled pilot trial with a sample of 113 nursing students the effect of an intervention using techniques from acceptance and commitment training (ACT) to prevent the development of stress and burnout was evaluated. Method: The 6 × 2-hour program was compared to standard treatment (reflection seminars) post-intervention and at a three-month follow-up using longitudinal analysis of mean response profiles. Mechanisms of change were investigated using a baseline-post intervention two-mediator model. Results: The intervention resulted in increased mindful awareness and decreased experiential avoidance, as well as decreased perceived stress and burnout. Levels of mindful awareness and perceived stress were sustained at follow-up. The proposed mechanisms of change were partly supported by the data. Conclusion: This study shows that techniques from ACT might have the potential to contribute to preventing the development of stress and burnout during nursing education. However, additional studies are needed to validate these results.  相似文献   
876.
    
The mobilizing potential of the internet has been widely recognized but also sharply criticized. We propose and test in two studies that the social affirmation use of social media motivates individuals for collective action to achieve social change. In Study 1, we surveyed participants of a university occupation and found that enduring participation was predicted by social affirmation use, mediated by group identification. In Study 2 we experimentally tested our hypothesis, the results of which confirmed that the social affirmation use of a forum (and in particular its interactive aspect) motivated individuals for collective action to achieve social change. We discuss the theoretical and practical implications of our findings for theory and research on the mobilizing potential of the internet.  相似文献   
877.
    
The main goal of this research was twofold. First, we aimed at determining how acculturation preferences and emotions were related to specific intergroup behavioural tendencies towards majority and minority groups. Second, we aimed at developing an intergroup behavioural tendencies scale that differentiates between valence (facilitation and harm) and intensity (active and passive). The role of intergroup contact was also examined, as it is a known predictor of intergroup prejudice. In order to fulfil these goals, we carried out two studies. In Study 1 , Spanish participants (N = 279) answered a questionnaire about Moroccans (a devalued group) or Ecuadorians (a valued group) by reporting their acculturation preferences for immigrants, their positive and negative emotions, quantity of contact with them and behavioural tendencies towards them. In Study 2 , Moroccans (N = 92) and Ecuadorians (N = 87) assessed Spaniards on these measures. Results confirmed the structure of the new behavioural tendencies scale across four groups of participants. Overall, findings also showed that acculturation preferences and quantity of contact indirectly predicted behavioural tendencies through positive emotions. This research contributes to knowledge on how the majority and minority's acculturation preferences are related to their emotions and specific dimensions of intergroup behavioural tendencies, confirming the predominant mediating role of positive emotions in this process.  相似文献   
878.
The aims of the present study were to identify (i) home advantage in elite handball according to the quality of opponent, (ii) the game periods where the teams score more goals, and (iii) the game statistics associated with the teams' success according to the game's location. The sample comprised 480 regular season games (2007-2009) from the Spanish Professional Handball League. The goals scored and shot effectiveness (6 m, 7 m, 9 m and fast breaks) were analyzed for each 5-min. game period in games between players of balanced and unbalanced quality. The home advantage was 64%, with higher values (71%) in balanced and lower values (55%) in unbalanced games. The 5-min. game periods in which teams scored more goals were the last 5-min. period of each half, especially in the second half. The effectiveness was only different in shots closer to the goal (6 m), which supports the territoriality theory of home advantage.  相似文献   
879.
The present study uses tip-of-the-tongue (TOT) states as a unique source of evidence to test the hypothesis of lexical access benefits for homophones--that is, whether low-frequency homophones, such as tee, inherit the lexical access benefits of their high-frequency homophonic counterparts, such as tea. We compared retrieval success rates for low-frequency homophones, for matched low-frequency controls, and for high-frequency controls with the combined frequency of the homophone set. In correct retrievals, low-frequency homophones behaved according to their specific frequency, not differing from the low-frequency controls. However, retrieval failures revealed a different kind of homophone effect. When retrieval failed for targets with a homophone partner, access difficulties tended to be less profound than for low-frequency controls, ending closer to target retrieval more often than low-frequency controls (at Step 2; in a self-resolved TOT or in a TOT with a strong feeling of knowing), and ending far away from target retrieval less often than low-frequency controls (at Step 1; in a notGOT). These results provide evidence against the notion of shared word-form representations for homophonic targets but leave open a door for a weaker form of homophone effects, possibly arising from feedback activation that influences retrieval only when access is sufficiently slowed (as when retrieval fails).  相似文献   
880.
Tadeusz Szubka 《Philosophia》2012,40(1):165-174
Although Brandom is critical of some features of narrowly conceived classical pragmatism, at the same time he explicitly embraces a version of pragmatism, both in his overall philosophical outlook, and in his philosophy of language. Brandom’s distinctive theoretical approach is based on what he calls rationalist pragmatism, which is a version of fundamental pragmatism. Within the philosophy of language it takes the form of semantic pragmatism. The paper briefly discusses Brandomian version of fundamental pragmatism and its semantic underpinning, and subsequently formulates a basic dilemma it encounters there.  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