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191.
The authors investigated the relationship between stress at initial cancer diagnosis and treatment and subsequent quality of life (QoL). Women (n = 112) randomized to the assessment-only arm of a clinical trial were initially assessed after breast cancer diagnosis and surgery and then reassessed at 4 months (during adjuvant treatment) and 12 months (postadjuvant treatment). There were 3 types of stress measured: number of stressful life events (K. A. Matthews et al., 1997), cancer-related traumatic stress symptoms (M. J. Horowitz, N. Wilner, & W. Alvarez, 1979), and perceived global stress (S. Cohen, T. Kamarck, & R. Mermelstein, 1983). Using hierarchical multiple regressions, the authors found that stress predicted both psychological and physical QoL (J. E. Ware, K. K. Snow, & M. Kosinski, 2000) at the follow-ups (all ps < .03). These findings substantiate the relationship between initial stress and later QoL and underscore the need for timely psychological intervention.  相似文献   
192.
This article analyzes the way a series of recent policy statements have been used to promote and shape the take-up of e-commerce in Denmark. Issuing periodic policy statements, with a combination of direct and indirect modes of intervention, is one of the roads governments are taking to influence the evolutions of ICT. The policy statements present the goals, launch initiatives, and assess achievements. Complementing a co-or self-regulation strategy, the policy statement approach has become particularly important in areas where governments seek to influence the take-up of a technology without appearing to tip the scales. She did her Ph.D. at the Center for Electronic Commerce, at Department of Informatics, Copenhagen Business School. Helle Zinner Henriksen has a degree in Law (University of Copenhagen, 1995). Her research interests include: Adoption and diffusion of Interorganizational Information Systems, e-government, and institutional regulation of electronic commerce and e-government. Kim Viborg Andersen is a researcher in organizational and policy aspects of IT. Andersen’s research encompasses various applications: economic models, EIS/BIS, health data network, EDI, e-commerce, and mobile applications primarily within the public sector domain. He is co-founder of the AIS SIG on e-government, vice-chair of the IFIP WG 8.4 on interdisciplinary e-business and on various editorial boards for journals. He is head of the Center for Research on Information Technology in Policy Settings (CIPS) at the Copenhagen Business School.  相似文献   
193.
194.
The field of nanoscience and nanotechnology is expanding rapidly, promising great benefits for society in the form of better medicine, more efficient energy production, new types of materials, etc. Naturally, in order for the science and technology to live up to these promises, it is important to continue scientific research and development, but equally important is the ethical dimension. Giving attention to the social, ethical and legal aspects of the field, among others, will help in developing a fully responsible—and thereby capable—science and technology. Nanoethics has emerged as a field concerned with such ethical issues related to nanoscience and nanotechnology. Even though this field is relatively new, a significant amount of literature has already been published. This paper focuses on three of the major issues which are discussed in the literature of nanoethics, and also points to a certain bias in this literature. Each quite different in nature, these issues are: (1) The naming and (2) the timing of and approach to the field, as well as (3) the issue of safety. As will be seen, these issues are almost exclusively discussed by ethicists, (throughout the article, the term’ethicist’ is used in a broad definition covering philosophers, social and political scientists as well as philosophers of science) thus having no direct influence on the work being carried out by scientists. One can argue, therefore, that this bias creates a distortion of the ethical debate, making it insufficient and misleading. Ultimately, this bias is caused by the lack of communication and collaboration between ethicists on the one hand, and nanoscientists on the other. Thus, an argument is made for the different disciplines to begin collaborating, so as to more effectively and responsibly develop the field of nanoscience.  相似文献   
195.
Sauer, Brewer, and Weber (2008) advanced a novel procedure for testing eyewitness recognition memory. Rather than providing a single decision (i.e., identifying a lineup member or rejecting the lineup as a whole), participants rated their confidence that each lineup member was the culprit. Classification algorithms determined when patterns of confidence ratings indicated suspect guilt or innocence. Across varied test stimuli, confidence-based classifications equalled or out-performed single decisions. However, Sauer et al.’s classification criteria were designed to optimize performance for the data to which they were applied. If effective classification using confidence ratings requires such idiosyncratic criteria, the applied utility of the confidence procedure is nil. We re-analysed the data from Sauer et al.’s two identification experiments and demonstrated that confidence-based classification performance exceeding that of a traditional lineup task did not depend on uniquely developed classification criteria. Confidence-rating lineups offer a potentially promising alternative to procedures requiring single decisions from witnesses.  相似文献   
196.
Recent research in working memory has highlighted the similarities involved in retrieval from complex span tasks and episodic memory tasks, suggesting that these tasks are influenced by similar memory processes. In the present article, the authors manipulated the level of processing engaged when studying to-be-remembered words during a reading span task (Experiment 1) and an operation span task (Experiment 2) in order to assess the role of retrieval from secondary memory during complex span tasks. Immediate recall from both span tasks was greater for items studied under deep processing instructions compared with items studied under shallow processing instructions regardless of trial length. Recall was better for deep than for shallow levels of processing on delayed recall tests as well. These data are consistent with the primary-secondary memory framework, which suggests that to-be-remembered items are displaced from primary memory (i.e., the focus of attention) during the processing phases of complex span tasks and therefore must be retrieved from secondary memory.  相似文献   
197.
We interviewed 14 clinical and counseling psychology faculty regarding their experiences chairing positive and problematic dissertations. Data were analyzed using consensual qualitative research (CQR). Participants reported that advisors’ roles involved guiding/facilitating dissertations and helping students shape research ideas; students’ roles included taking responsibility, working independently, and maintaining good relationships with the chair/committee. With positive dissertation experiences, chairs and students collaborated before the dissertation, worked together well during the dissertation, and students began the dissertation feeling competent and motivated; such dissertations positively affected participants. Problematic dissertation experiences evinced difficult relationships between chair and student, and students’ low research capability; such dissertations negatively affected participants.  相似文献   
198.
Although infants display preferences for social stimuli early in their lives, we know relatively little about the mechanisms of infant learning about the social world. In the current set of studies, 1-month-old infants underwent an adapted eyeblink conditioning paradigm to examine learning to both 'social' and non-social cues. While infants were asleep, they were presented with either a 'social' stimulus (a female voice) or one of two non-social stimuli (tone or backward voice) followed by an airpuff presented to the eyelid. Infants in the experimental groups displayed increased learning across trials, regardless of stimulus type. However, infants conditioned to the 'social' stimulus showed increased learning compared to infants conditioned to either of the non-social stimuli. These results suggest a mechanism by which learning about the social world occurs early in life and the power of ecologically valid cues in facilitating that learning.  相似文献   
199.
Nine experiments tested competing hypotheses regarding nonconscious affective responses to acute social exclusion and how such responses may relate to positive mental health. The results strongly and consistently indicated that acute social exclusion increased nonconscious positive affect. Compared to nonexcluded participants, excluded participants recalled more positive memories from childhood than did accepted participants (Experiment 1), gave greater weight to positive emotion in their judgments of word similarity (Experiments 2 and 3), and completed more ambiguous word stems with happy words (Experiments 4a and 4b). This process was apparently automatic, as participants asked to imagine exclusion overestimated explicit distress and underestimated implicit positivity (Experiment 3). Four final experiments showed that this automatic emotion regulation process was found among participants low (but not high) in depressive symptoms (Experiments 5 and 6) and among participants high (but not low) in self-esteem (Experiments 7 and 8). These findings suggest that acute exclusion sets in motion an automatic emotion regulation process in which positive emotions become highly accessible, which relates to positive mental health.  相似文献   
200.

Objective

Use classification tree analysis with lagged predictors to determine empirically derived cut-points for identifying adolescent girls at risk for future onset of threshold, subthreshold, and partial eating disorders and test for interactions between risk factors that may implicate qualitatively distinct risk pathways.

Method

Data were drawn from a prospective study of 496 adolescent girls who completed diagnostic interviews and surveys annually for 8 years.

Results

Body dissatisfaction emerged as the most potent predictor; adolescent girls in the upper 24% of body dissatisfaction showed a 4.0-fold increased incidence of eating disorder onset (24% vs. 6%). Among participants in the high body dissatisfaction branch, those in the upper 32% of depressive symptoms showed a 2.9-fold increased incidence of onset (43% vs. 15%). Among participants in the low body dissatisfaction branch, those in the upper 12% of dieting showed a 3.6-fold increased incidence onset (18% vs. 5%).

Conclusion

This three-way interaction suggests a body dissatisfaction pathway to eating disorder onset that is amplified by depressive symptoms, as well as a pathway characterized by self-reported dieting among young women who are more satisfied with their bodies. It may be possible to increase the effectiveness of prevention programs by targeting each of these qualitatively distinct risk groups, rather than only individuals with a single risk factor.  相似文献   
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