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141.
What predicts a person's venture creation success over the course of the career, such as making progress in the venture creation process and multiple successful venture creations? Applying a life span approach of human development, this study examined the effect of early entrepreneurial competence in adolescence, which was gathered retrospectively by means of the Life History Calendar method. Human and social capitals during the founding process were investigated as mediators between adolescent competence and performance. Findings were derived from regression analyses on the basis of prospective and retrospective data from two independent samples (N = 88 nascent founders; N = 148 founders). We found that early entrepreneurial competence in adolescence had a positive effect on making progress in the venture creation process. Nascent founders' current human and social capital also had a direct effect, but it did not mediate the effect of early competences. Finally, the data revealed that early entrepreneurial competence in adolescence positively predicted habitual entrepreneurship (multiple successful venture creations) exhibited over a longer period of the individual career (specifically, 18 years). In line with the results from prospective longitudinal studies on early precursors of entrepreneurship, our findings underscore the long neglected importance of adolescent development in the explanation of entrepreneurial performance during the subsequent working life.  相似文献   
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143.
The aim of the worksite study presented here is to elucidate the cortisol reducing impact of different ways of spending lunch breaks. With the help of the so‐called silent room cabin concept it was possible to induce a relaxation opportunity that provides visual and territorial privacy. In order to evaluate its proposed effects, 14 call centre agents were distributed to either 20 min progressive muscle relaxation (PMR) or small talk break group. Participants were analysed in a controlled trial for a period of 6 months (1 day each month with five daily measurements at awakening, awakening +30 min, start of lunch break, end of lunch break, and bedtime) using saliva cortisol measurements as a stress indicator. Results indicated that only the PMR break reduced awakening, lunchtime, and bedtime cortisol response. Although further intervention research is required, our results suggest that post‐lunch PMR may sustainably reduce participants' cortisol states in real worksite settings.  相似文献   
144.
A newly developed Semantic Misattribution Procedure (SMP), a semantic variant of the Affect Misattribution Procedure (AMP), was used in three studies as an indirect measure of sexual interest. Using a known-group approach, homosexual men (Studies 1 and 2), heterosexual men (Studies 1 to 3) and heterosexual women (Study 3) were asked to guess the meaning of briefly presented Chinese ideographs as "sexual" or "not sexual". The ideographs were preceded by briefly presented primes depicting male and female individuals of varying sexual maturity. As hypothesised, the frequency of "sexual" responses increased after priming with pictures of individuals of the preferred sex and increasing sexual maturation. The SMP showed satisfactory reliability and convergent validity as indicated by correlations with direct and two indirect measures of sexual interest. In two further studies, the hypothesised pattern was replicated whereas a standard AMP with the identical prime stimuli did not produce this result. The potential usefulness of semantic variants of the AMP is discussed.  相似文献   
145.
Functional Transcranial Doppler sonography (fTCD) has been applied to assess peak mean cerebral blood flow velocity (MFV) with a high temporal resolution during cognitive activation. Yet, little attention has been devoted to gender-related alterations of MFV, including spectral analysis. In healthy subjects, fTCD was used to investigate a series of cerebral hemodynamic parameters in the middle cerebral arteries (MCA) during the Trail Making Tests (TMT), a means of selective attention and complex cognitive functioning. In females, there was a frequency peak at 0.375 Hz in both MCA, and we observed a dynamic shift in hemispheric dominance during that condition. Further, after the start phase, there was an MFV decline during complex functioning for the entire sample. These novel results suggest condition-specific features of cerebral hemodynamics in females, and it adds to the notion that gender is a fundamental confounder of brain physiology.  相似文献   
146.
Psychologically stressful events have been reported to elevate nerve growth factor (NGF) serum concentrations. NGF and cortisol serum concentrations were measured in 20 healthy male volunteers before (3 p.m.) and after (5 p.m.) an academic oral presentation and on a control day. Cortisol showed a significant overall change (p=0.001), i.e. cortisol serum concentrations were increased on the lecture day at 3 p.m. (p=0.007; 155%) and at 5 p.m. (p=0.001; 175%) as compared with the control day. In contrast to cortisol no significant differences among the four serum NGF measurements was detected (Chi-quadrat 2.94, df=3, p=0.401), i.e. the NGF serum concentrations remained unchanged on the lecture day at 3 p.m. (p=0.279) and at 5 p.m. (p=0.627) as compared with the control day. We conclude that NGF serum levels do not change during acute stress, at least after this type of stressor.  相似文献   
147.
Audiovisual phenomenal causality   总被引:1,自引:0,他引:1  
We report three experiments in which visual or audiovisual displays depicted a surface (target) set into motion shortly after one or more events occurred. A visual motion was used as an initial event, followed directly either by the target motion or by one of three marker events: a collision sound, a blink of the target stimulus, or the blink together with the sound. The delay between the initial event and the onset of the target motion was varied systematically. The subjects had to rate the degree of perceived causality between these events. The results of the first experiment showed a systematic decline of causality judgments with an increasing time delay. Causality judgments increased when additional auditory or visual information marked the onset of the target motion. Visual blinks of the target and auditory clacks produced similar causality judgments. The second experiment tested several models of audiovisual causal processing by varying the position of the sound within the visual delay period. No systematic effect of the sound position occurred. The third experiment showed a subjective shortening of delays filled by a clack sound, as compared with unfilled delays. However, this shortening cannot fully explain the increased tolerance for delays containing the clack sound. Taken together, the results are consistent with the interpretation that the main source of the causality judgments in our experiments is the impression of a plausible unitary event and that perfect synchrony is not necessary in this case.  相似文献   
148.
Psychological research on childbirth is rare, even though research from other scientific fields such as obstetrics or midwifery highlights the importance of psychological factors in childbirth. In this article, the theoretical construct of a birth‐related mindset and direct and indirect measures for assessing the mindset are proposed. It is assumed that childbirth can be mentally presented as a rather natural (natural mindset) or a rather medicalized (medicalized mindset) event. In three online studies (Study 1: N = 117, Study 2: N = 206, Study 3: N = 192), we aimed to explore whether the proposed birth‐related mindset is related to the retrospectively reported process of labor and birth (operationalized, e.g., by performed interventions, duration of birth, place of birth). For this, the relation between the mothers’ birth‐related decisions and outcomes of childbirth and the mothers' birth‐related mindsets were analyzed. Results indicated that (1) birth‐related criteria such as place of birth, epidural anesthesia, and C‐sections were associated with the birth‐related mindset, (2) these aspects of the delivery were related to the evaluation of the birth (birth experience), (3) the birth‐related mindset moderated the relationship between C‐section and birth experience, and (4) the indirect measures had little to no added explanatory value to the developed Mindset and Birth Questionnaire. Thus, the results indicate that the birth process experienced by the women and the mental representations of birth (birth‐related mindset) are closely related. Future studies need to investigate to what extend the experienced birth process influences the mindset of birth, or the mindset the experienced birth process, or both.  相似文献   
149.
Technology developments have changed immigrants' adaptation patterns in modern societies, allowing immigrants to sustain dense, complex connections with homeland while adjusting in the host country, a new phenomenon termed transnationalism. As empirical studies on immigrant transnationalism are still scarce, the purpose of this study was to investigate mean levels and determinants of a core component of transnationalism—transnational travel. Hypotheses were based on context of exiting homeland, living conditions in Germany and demographic and sociocultural variables. Transnational travel behaviour was assessed as frequency of return trips in three immigrant groups in Germany: ethnic Germans, Russian Jews and Turks. Interviews were conducted with 894 women participants from these groups. Results showed substantial transnational travel behaviour in all groups with Turks reporting higher levels than ethnic Germans and Russian Jews. Interindividual differences in transnational travel within groups were also examined. Results indicated similarities (e.g. network size in home country related positively to transnational travel frequency in all groups) and group‐specific associations (e.g. co‐ethnic identifying related positively to transnational travel frequency among Turks, but negatively for the other groups). Our study highlights the need for a new understanding of immigration and emphasises the consideration of group‐specific mechanisms in transnational travel behaviour.  相似文献   
150.
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