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   92篇
  免费   5篇
  97篇
  2024年   1篇
  2023年   1篇
  2022年   4篇
  2021年   6篇
  2020年   6篇
  2019年   5篇
  2018年   9篇
  2017年   7篇
  2016年   9篇
  2015年   3篇
  2014年   5篇
  2013年   20篇
  2012年   3篇
  2011年   1篇
  2010年   2篇
  2009年   2篇
  2008年   2篇
  2007年   4篇
  2006年   1篇
  2004年   1篇
  1999年   1篇
  1993年   1篇
  1987年   1篇
  1984年   1篇
  1977年   1篇
排序方式: 共有97条查询结果,搜索用时 15 毫秒
41.
We conducted a study to examine the impact of motivation and length of delay on performance on prospective memory (PM) tasks in 2-year of children. A total of 158 children aged exactly 24 months were asked to perform a naturalistic PM task. Length of delay (10?min; 35?min) and motivation (high; very high) were between-subjects factors. Two thirds of children had to be excluded from the analysis because of poor retrospective memory for the PM task instructions which were no longer remembered at the end of the session. For the children who did remember the instructions, both motivation and delay had significant effects on PM. Also, their PM performance was reliably above zero, even after the long delay. The findings indicate that when children as young as 24 months are able to remember the PM task instructions they can reliably succeed in PM tasks that are intrinsically motivating for them.  相似文献   
42.
By a pure modal logic of names (PMLN) we mean a quantifier-free formulation of such a logic which includes not only traditional categorical, but also modal categorical sentences with modalities de re and which is an extension of Propositional Logic. For categorical sentences we use two interpretations: a “natural” one; and Johnson and Thomason’s interpretation, which is suitable for some reconstructions of Aristotelian modal syllogistic (Johnson in Notre Dame J Form Logic 30(2):271–284, 1989; Thomason in J Philos Logic 22(2):111–128, 1993 and J Philos Logic 26:129–141, 1997. In both cases we use Johnson-like models (1989). We also analyze different kinds of versions of PMLN, for both general and singular names. We present complete tableau systems for the different versions of PMLN. These systems enable us to present some decidability methods. It yields “strong decidability” in the following sense: for every inference starting with a finite set of premises (resp. every syllogism, every formula) we can specify a finite number of steps to check whether it is logically valid. This method gives the upper bound of the cardinality of models needed for the examination of the validity of a given inference (resp. syllogism, formula).  相似文献   
43.
Depression and anxiety symptoms in chronic pain are associated with adverse clinical outcomes, and appear highly related to patient’s illness perceptions as well as with marital adjustment. This study aimed to investigate the predictive value of pain variables, marital adjustment and illness perceptions on depression and anxiety in patients with chronic pain. Two hundred patients were recruited from a pain unit in a public hospital in the north of Portugal. Patients completed a questionnaire that assessed illness perceptions (IPQ-Brief), marital adjustment (revised dyadic adjustment scale), depression and anxiety symptoms (hospital anxiety depression scale) and pain variables (pain intensity and pain disability index). Depression and anxiety symptoms were associated with pain intensity, pain-related disability, marital adjustment and illness perceptions. Results from hierarchical regression showed that illness perceptions contributed significantly to depression and anxiety symptoms over and above the effects of pain intensity, pain-related disability and marital adjustment, after controlling for gender. In multivariate analyses, pain intensity, pain-related disability and marital adjustment were uniquely related to depression and anxiety symptoms, whereas specific illness perceptions were uniquely related to depression symptoms (identity, treatment control, emotional response and coherence) and to anxiety symptoms (identity, emotional response and concern). Perceptions of greater symptomatology (identity) and of emotional impact, and lesser perceptions of treatment control and understanding of chronic pain (illness comprehensibility) were significantly associated with increased depression symptoms. Perceptions of greater symptomatology (identity), emotional impact and greater concern were associated with anxiety symptoms. These findings indicate that the contribution of illness perceptions was greater than that made by traditional covariates, and may therefore be a useful basis for future psychological interventions.  相似文献   
44.
Introduction: The aims of the present study were to assess demographic and clinical characteristics of patients after receiving a cancer diagnosis, and to determine possible risk factors for anxiety and depression. Methods: All consecutive patients aged 18 or above, were assessed before starting intravenous chemotherapy for the first time with the Hospital Anxiety and Depression Scale (HADS), the Distress Thermometer, and a Visual Analog Scale for pain. Demographic and clinical data were also collected. Results: The patients assessed (n = 270) had a mean age of 59.4 (SD = 11.8) years, and 50.7% were women. Tumours were more frequently colorectal (27.2%), lung (18.8%) and breast (17.6%), and 68.9% were stages 3 or 4. A HADS Anxiety score ≥8 was present in 30% of the patients, a Depression score ≥8 in 24.1%, and a Distress score ≥4 in 44.4%. Independent risk factors for HADS Depression score ≥8 were being a woman (OR = 2.45; p = 0.004), being older (OR = 1.04; p = 0.005), and cancer stage 3–4 (OR = 2.24; p = 0.023) in the multivariable analysis; for Anxiety ≥8 they were being a woman (OR = 2.47; p = 0.002), having a past psychiatric consultation (OR = 2.83; p = 0.029), and cancer stage 3–4 (OR = 1.90; p = 0.047). Conclusion: These results suggest the need for greater awareness and a differentiated approach to patients at increased risk of anxiety and depression in the early stages of treatment and before starting chemotherapy.  相似文献   
45.
The present study investigated the effects of fixed‐ratio (FR) and variable‐ratio (VR) reinforcement schedules on patterns of cooperative responding in pairs of rats. Experiment 1 arranged FR 1, FR 10, and VR 10 schedules to establish cooperative responding (water delivery depended on the joint responding of two rats). Cooperative response rates and proportions were higher under intermittent schedules than under continuous reinforcement. The FR 10 schedule generated a break‐and‐run pattern, whereas the VR 10 schedule generated a relatively high and constant rate pattern. Experiment 2 evaluated the effects of parametric manipulations of FR and VR schedules on cooperative responding. Rates and proportions of cooperative responding generally increased between ratio sizes of 1 and 5 but showed no consistent trend as the ratio increased from 5 to 10. Experiment 3 contrasted cooperative responding between an FR6 schedule and a yoked control schedule. Coordinated behavior occurred at a higher rate under the former schedule. The present study showed that external consequences and the schedules under which the delivery of these consequences are based, select patterns of coordinated behavior.  相似文献   
46.
The aim of the presented research was to analyze differences in religious strategies of coping with stress in a group of prison inmates characterized by different levels of the sense of quality of life—general, psychophysical, psychosocial, personal, and metaphysical. The participants were 390 males, aged 19–68 years, serving sentences in prisons in Poland. The measures used were the Sense of Quality of Life Questionnaire by M. Stra?-Romanowska and K. I. Pargament’s RCOPE Questionnaire. As expected, individuals with a high sense of quality of life—both general and pertaining to specific dimensions—more often chose positive religious strategies, whereas participants with a low sense of quality of life more often chose negative strategies. The exception was the metaphysical aspect of the quality of life: individuals with a high intensity of this dimension more often chose some of the positive as well as negative religious strategies.  相似文献   
47.
In this paper we examine Prior’s reconstruction of Master Argument [4] in some modal-tense logic. This logic consists of a purely tense part and Diodorean definitions of modal alethic operators. Next we study this tense logic in the pure tense language. It is the logic K t 4 plus a new axiom (P): ‘p Λ G pP G p’. This formula was used by Prior in his original analysis of Master Argument. (P) is usually added as an extra axiom to an axiomatization of the logic of linear time. In that case the set of moments is a total order and must be left-discrete without the least moment. However, the logic of Master Argument does not require linear time. We show what properties of the set of moments are exactly forced by (P) in the reconstruction of Prior. We make also some philosophical remarks on the analyzed reconstruction. Presented by Jacek Malinowski  相似文献   
48.
Breast cancer is the most common type of cancer for women and is associated with increased distress. Spirituality and posttraumatic growth (PTG) have been associated with illness adjustment, but the relationship between these variables is still not well understood. A sample of 100 breast cancer patients completed a demographic and clinical questionnaire, the Posttraumatic Growth Inventory, Spiritual and Religious Attitudes in Dealing with Illness, and the Hospital Anxiety and Depression Scale. Results showed an association between PTG, spirituality and distress. Women with a longer diagnosis and recurrence showed more distress. Younger age, recurrent cancer and spirituality predicted higher PTG. Patients’ spirituality should be part of intervention with breast cancer patients since it seems to be related to greater growth and adjustment to the illness.  相似文献   
49.
In what sense, if any, are philosophers experts in their domain of research and what could philosophical expertise be? The above questions are particularly pressing given recent methodological disputes in philosophy. The so-called expertise defense recently proposed as a reply to experimental philosophers postulates that philosophers are experts qua having improved intuitions. However, this model of philosophical expertise has been challenged by studies suggesting that philosophers’ intuitions are no less prone to biases and distortions than intuitions of non-philosophers. Should we then give up on the idea that philosophers possess some sort of expertise? In this paper, I argue that instead of focusing on intuitions, we may understand the relevant results of philosophical practice more broadly and investigate the other kind(s) of expertise they would require. My proposal is inspired by a prominent approach to investigating expert performance from psychology and suggests where and how to look for expertise in the results characteristic of philosophical practice. In developing this model, I discuss the following three candidates for such results: arguments, theories, and distinctions. Whether philosophers could be shown to be expert intuiters or not, there are interesting domains where we could look for philosophical expertise, beyond intuitions.  相似文献   
50.
Postural control and breathing are mechanically and neuromuscularly interdependent. Both systems– of spinal stability and respiration– involve the diaphragm, transversus abdominis, intercostal muscles, internal oblique muscles and pelvic floor muscles. The aim of the study was to evaluate the effect of exercises activating deep stabilizer muscles on postural control and quality of breathing movements. Eighteen volunteers (25,7 ± 3,5) were recruited from the general population. All the subjects implemented an exercise program activating deep muscles. Head, pelvic and trunk positions in the sagittal and frontal planes were assessed with the photogrammetric method. Breathing movements were estimated with the respiratory inductive plethysmography. The results indicate that the use of deep muscle training contributed to a significant change in the position of the body in the sagittal plane (p = 0.008) and the increase in the amplitude of breathing (p = 0.001).  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