全文获取类型
收费全文 | 2060篇 |
免费 | 73篇 |
专业分类
2133篇 |
出版年
2023年 | 13篇 |
2022年 | 13篇 |
2021年 | 23篇 |
2020年 | 29篇 |
2019年 | 40篇 |
2018年 | 48篇 |
2017年 | 66篇 |
2016年 | 70篇 |
2015年 | 51篇 |
2014年 | 46篇 |
2013年 | 225篇 |
2012年 | 105篇 |
2011年 | 101篇 |
2010年 | 62篇 |
2009年 | 67篇 |
2008年 | 73篇 |
2007年 | 96篇 |
2006年 | 66篇 |
2005年 | 74篇 |
2004年 | 65篇 |
2003年 | 62篇 |
2002年 | 78篇 |
2001年 | 36篇 |
2000年 | 29篇 |
1999年 | 29篇 |
1998年 | 38篇 |
1997年 | 32篇 |
1996年 | 31篇 |
1995年 | 31篇 |
1994年 | 27篇 |
1993年 | 18篇 |
1992年 | 24篇 |
1991年 | 20篇 |
1990年 | 17篇 |
1989年 | 25篇 |
1988年 | 21篇 |
1987年 | 14篇 |
1986年 | 16篇 |
1985年 | 20篇 |
1984年 | 20篇 |
1983年 | 21篇 |
1982年 | 22篇 |
1981年 | 15篇 |
1980年 | 14篇 |
1979年 | 16篇 |
1978年 | 18篇 |
1977年 | 15篇 |
1976年 | 13篇 |
1975年 | 12篇 |
1973年 | 18篇 |
排序方式: 共有2133条查询结果,搜索用时 0 毫秒
191.
Abstract Cluster analysis derived MMPI profile types were compared for three distinct illness populations: chronic low back pain (CLBP), mixed headache (HA), and cardiac disease (CD). Results replicated previous findings in the chronic pain and cardiac literatures. Differences between diagnostic groups and genders were found for the prevalence of the derived MMPI profile types. Results indicated that, in males, the two chronic pain groups had similar profile types and similar relative frequencies of these types, but both differed from the CD sample. The chronic pain groups tended to have a greater number of patients with pathological and distressed MMPI profile types and a lesser representation in the subclinical profile type compared to the CD sample. Similar findings were obtained for females, though the CLBP group tended to have a higher frequency of highly distressed, pathological profiles than either the HA or CD groups. Results suggested that the MMPI may be a measure of response to illness rather than reflecting predisposing personality types for any given illness and that the higher frequency of highly distressed profiles in the chronic pain samples reflects the increased suffering of those populations compared to other illnesses. 相似文献
192.
193.
194.
Previous studies have demonstrated that animals use multiple strategies to solve spatial tasks. We used a T-maze to examine spatial behavior in crayfish, using visual and tactile stimuli as place cues and a food-scented escape tank as reinforcement to leave the maze. In trials on a single day and across multiple days, crayfish learned to exit the maze with significantly reduced latency and with fewer turns. In addition, we examined place memory in 40-min periods with the maze closed and found that crayfish spent longer in the vicinity of a previously open exit compared to a closed exit. Probe tests were conducted using a forced-choice procedure to determine whether crayfish remembered the route out of the maze using primarily place cues or response learning. We found that approximately equal numbers of animals used each strategy, and individuals were able to switch from one strategy to the other on different test days. Males and females did not differ significantly in their performance in the place memory test, maze exit task, or probe tests. Both sexes displayed place memory for the exit location and reduced latency to exit during trials 24 h, 48 h, 72 h, and 1 week after initial training trials, suggesting that spatial memories in crayfish are relatively enduring. 相似文献
195.
This article examines the Eastern Christian presence on the Italian Peninsula and the Island of Sicily; the settlement of Albanian Christians after the Ottoman conquest of the Balkans, the emergence of a distinct Italo-Albanian Church and the jurisdictional arrangements made to accomodate this. Concentrating on the period from the 15th century onwards, from the arrival of large numbers of Eastern Christian Albanians in southern Italy and Sicily, the article examines the unique arrangement between Rome and Constantinople, from the Council of Florence (1439) to the Council of Trent (1545–1563), when the Orthodox Bishop of Ohrid provided ecclesial jurisdiction, an arrangement which has no direct historical parallel. The article highlights the work of the eighteenth-century historian Pietro Pompilio Rodotà (who related the two distinct phases of Eastern Christian presence, for historical, cultural, ethnic and linguistic reasons, to the development of the general category of the ‘Greek Rite’) and more contemporary attempts by some Italo-Albanians to establish a metropolitanate (posing questions for the relationship of the Italo-Greek Monastery of Grottaferrata to any future Italo-Albanian ecclesial body). The history and tradition of the Italian-Albanian Church and of the Monastery of Grottaferrata, present a unique and significant Eastern Christian–Eastern Catholic presence in Italy, raising important questions for ecumenism and ecclesiolgy in Europe today. 相似文献
196.
The article examines the origins and evolution of the Vatican's political theology and ecclesiology for Europe from Pius XII (especially after the Second World War) and including the pontificates of John XXIII, Paul VI, John Paul II and Benedict XVI. It seeks to examine the continuities of the ‘Idea of Europe’ in papal thought against a background of changing political context – the end of the Second World War, the Cold War, the fall of the communist state system, the emergence of a united but diverse Europe after 1989. The political structures of the continent now include within its geographic sweep Western and Eastern Christian churches which, divided by tradition and modern history, find their relationship a key marker in the contemporary religious identity of Europe. This reality is a significant framework for Vatican thinking on Europe especially for John Paul II and Benedict XVI. 相似文献
197.
Abstract Traditional group therapy for test anxiety, modelled after Weissberg (1976), was compared with the computer-administered treatment of Thoresen, Insel, Roth, Ross, and Seyler (1986). Both treatments contained cognitive and behavioral elements including systematic desensitization and Jacobsonian relaxation techniques. The participants were 36 test-anxious students seeking treatment within a university counseling center. Effectiveness of each treatment was assessed by studying changes in test anxiety (total, worry, emotionality), as measured by the Test Anxiety Inventory (Spielberger, 1980). and changes in grade point average (GPA). There was a statistically significant reduction in the three test anxiety measures for both treatments. No significant differences in GPA, as a result of the treatment, were found. There was no significant difference in reduction of test anxiety between the treatments. These findings support the efficacy of the computerized treatment which may be a suitable alternative to group therapy and, in some situations, may be the treatment of choice. 相似文献
198.
Anthony C. Puliafico Jonathan S. Comer Anne Marie Albano 《Cognitive and behavioral practice》2013,20(4):517-528
Whereas the cognitive-behavioral treatment of childhood anxiety has been well-researched and empirically supported over the last 20 years, interventions for anxiety in young children (ages 7 and below) have garnered little attention. Because young children generally lack the required developmental skills to effectively engage in cognitive-behavioral treatment, a simple downward extension of treatments used for older children is inappropriate. The CALM program (Coaching Approach behavior and Leading by Modeling) was developed as a developmentally compatible intervention to treat anxiety disorders in young children ages 3 to 7. The CALM program is an adaptation of Parent-Child Interaction Therapy (PCIT), and an extension of Pincus, Eyberg, and Choate's (2000) adaptation of PCIT for young children with separation anxiety disorder. It is a parent-focused treatment that teaches parents skills to effectively reinforce their children's brave behavior and coaches the use of these skills during in-session parent-child interactions. The treatment emphasizes live, bug-in-the-ear coaching of parents during in vivo exposure sessions. This article describes the CALM program in detail. 相似文献
199.
Attentional effects of letter cues on target processing were investigated in a bilateral spatial cueing paradigm. Luminance contrast of the cue stimuli and of the target stimuli were both manipulated. Consistent with predictions derived from theoretical models of visual attention, manipulating cue luminance and target luminance had very different effects on performance. In agreement with the dorsal stream attention hypothesis (Marrett et al., 2011) orienting effects were unaffected by changes in cue luminance; but in agreement with the work of Reynolds, Pasternak, and Desimone (2000) and Carrasco, Ling, and Read (2004) orienting effects were strongly modulated by changes in the luminance and perceptual quality of the target. Theoretical implications of the results are considered and the data are explained in terms of a sensory enhancement effect, whereby attention amplifies the neuronal responses for attended stimuli. 相似文献
200.