全文获取类型
收费全文 | 94篇 |
免费 | 12篇 |
国内免费 | 30篇 |
专业分类
136篇 |
出版年
2021年 | 3篇 |
2020年 | 4篇 |
2019年 | 4篇 |
2018年 | 4篇 |
2017年 | 4篇 |
2016年 | 2篇 |
2015年 | 5篇 |
2014年 | 4篇 |
2013年 | 18篇 |
2012年 | 6篇 |
2011年 | 5篇 |
2010年 | 3篇 |
2009年 | 7篇 |
2008年 | 5篇 |
2007年 | 11篇 |
2006年 | 9篇 |
2005年 | 11篇 |
2004年 | 7篇 |
2003年 | 1篇 |
2002年 | 5篇 |
2001年 | 3篇 |
2000年 | 2篇 |
1999年 | 2篇 |
1998年 | 1篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1990年 | 1篇 |
1986年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有136条查询结果,搜索用时 0 毫秒
41.
42.
43.
中心气道狭窄可由多种原因引起。由于其部位在气管、隆突、左右主支气管及中间段支气管,因此可造成严重呼吸困难。近年来,围绕中心气道狭窄的处理,出现了很多介入治疗的方法,包括电刀、冷冻、氩气刀、激光、光动力、支架置入、球囊扩张及近距离照射等。如何合理应用这些技术是呼吸内科临床医生面临的一项重要课题。 相似文献
44.
Many public information documents attempt to persuade the recipients that they should engage in or refrain from specific behaviour. This is based on the assumption that the recipient will decide about his or her behaviour on the basis of the information given and a rational evaluation of the pros and cons. An analysis of 20 public information brochures shows that the argumentation in persuasive brochures is often not marked as such. Argumentation is presented as factual information, and in many instances the task of making argumentational links and drawing conclusions is left to the reader. However, since the information offered does follow familiar argumentational schemes, readers can, in principle, reconstruct the argument. All the brochures make use of pragmatic argumentation (argumentation from consequences),i. e.,they formulate at least certain benefits of the desirable behaviour or disadvantages of the undesirable behaviour. In addition, they make regular use of argumentation from cause to effect and argumentation from example. Argumentation from rules and argumentation from authority are less frequently used. This empirical analysis of the use of argumentation schemes is a solid base for interesting and rich hypotheses about the cognitive processing of persuasive brochures. Central processing requires the reader to be able to reconstruct argumentation from informational texts and to identify and evaluate various types of argumentation. 相似文献
45.
采用线索一靶子范式考察听觉中央重新定向对听觉返回抑制的影响。结果表明:1)听觉中央重新定向的有无不是听觉返回抑制产生的关键因素,但它的存在能够较好地引导听觉选择性注意进行快速转移,提高听觉选择性注意的搜索效率;2)听觉中央重新定向对听觉返回抑制量的大小没有显著影响。 相似文献
46.
Jonathan Parks Fillauer Jennifer Bolden Melanie Jacobson Brock H. Partlow Andrea Benavides Jessica N. Shultz 《Applied cognitive psychology》2020,34(1):50-63
The present study attempts to expand our understanding of frustration, clinical symptoms, and working memory by examining the unique contribution of attention-deficit/hyperactivity disorder symptoms and frustration to working memory capacity (WMC). A factor-analytic framework was utilized to isolate and examine WMC based on results from three working memory tasks that were administered in counterbalanced order to control for individual differences in baseline WMC. All participants provided subjective ratings of frustration both prior to and after administration of a frustration induction. Results suggest that although we were able to systematically induce subjective frustration for participants in the experimental group relative to the control group, WMC was not associated with induced frustration in the present study. Results also indicated that inattention symptoms predicted baseline frustration levels. This work highlights the need to examine the extent to which storage/rehearsal WMC and additional process-oriented working memory-related performance variables are related to frustration. The data that support the findings of this study are available from the corresponding author upon request. 相似文献
47.
48.
Effects of mesolimbic dopamine depletion on responding maintained by cocaine and food. 总被引:5,自引:1,他引:4 下载免费PDF全文
The hypothesis that mesolimbic dopamine is selectively involved in cocaine reinforcement was investigated in the rat. Animals were trained under a multiple schedule in which responding was reinforced by intravenous cocaine (0.75 mg/kg/injection) or food (45-mg pellets) under fixed-ratio 15 schedule requirements in alternate 30-min components of a 2-hr daily session. Infusion of the catecholaminergic neurotoxin 6-hydroxydopamine, but not the vehicle solution, into the region of the nucleus accumbens and olfactory tubercle produced selective reductions in cocaine self-administration without significantly altering responding maintained by food within the same sessions. This effect was reproduced in intact animals by substituting saline for cocaine in the self-administration component. These results support the hypothesis that the reinforcing effects of cocaine are dependent upon mesolimbic dopamine and demonstrate that cocaine self-administration can be disrupted in animals without altering behavior maintained by a nondrug reinforcer. 相似文献
49.
50.
William P. Paré Ph.D. Greg R. Blair Joseph Kluczynski Shanaz Tejani-Butt 《Integrative psychological & behavioral science》1999,34(4):227-241
While females are considered more susceptible to depressive behavior, this assertion is not strongly supported by the experimental
literature. Since stress contributes to depressive behavior, male and female Wistar Kyoto (WKY) rats were exposed to either
one session (acute stress) or 5 sessions (chronic stress) of restraint plus cold in order to study depressive behavior in
male and female rats. After their respective treatment exposure, rats were tested in the open field test (OFT) and for retention
of a passive-avoidance (P-A) task. One stress session resulted in significant immobility in the OFT for males, whereas 5 sessions
were required to produce similar immobility in female rats. Acute stress interfered with the retention of the P-A response
for males, while both acute and chronic stress produced poor P-A responses in female rats. Food consumption decresed, progressively,
as a function of stress sessions, in female rats, whereas feeding in males returned to control levels after five stress days.
Both acute and chronic stress exacerbated the stress ulcer response in male rats, but not in female rats. Chronic, but not
acute, stress resulted in an increase in serotonin transporter mRNA levels in the dorsal raphe nucleus of both male and, female
rats. The general consensus from these data suggested that female rats were more vulnerable to chronic stress and consequently
supported the notion that females may be more susceptible to stress induced behavioral depression. 相似文献