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161.
We have found stable icosahedral (i) phases in alloys with nominal compositions around Al 72 Pd 17 Ru 11 and Al 72 Pd 17 Os 11 . They display very sharp X-ray diffraction peaks, indicating high structural order as in other Al-based i-phases such as i-(Al-Pd-TM) (transition metal TM = Mn or Re) and i-(Al-Cu-TM) (TM =Fe, Ru or Os). The i phases are formed via peritectic reaction and, upon heating, they transform into a mixture of a liquid and the 1/0 cubic approximant phase. The electrical resistivity of the i phases was measured in a wide temperature range from 14K to above their melting points and a reversible change of the resistivity across the melting point has been observed in situ for the first time. 相似文献
162.
Eleni Tsilika Efi Parpa Antonis Galanos Pavlos Sakkas Lambros Vlahos 《Psychology & health》2013,28(2):135-148
The aims of this study were to investigate the preparatory grief and traumatic distress in advanced cancer patients in a palliative care unit. A total of 94 advanced cancer patients completed the Preparatory Grief in Advanced Cancer Patients (PGAC) scale and the Greek version of the Impact of Events Scale- Revised (IES-R-Gr). The Eastern Cooperative Oncology Group was used to measure patients’ performance status. Statistically significant associations were found between PGAC, patients’ performance status, and all the IES-R-Gr scales (avoidance, intrusion, hyperarousal) and IES-R-Gr total score. The multiple regression analysis revealed that preparatory grief was predicted by patients’ young age, poor performance status, as well as by their high levels of intrusion and hyperarousal, in a model explaining 51.5% of the total variance. Concluding, in advanced cancer patients, preparatory grief is significantly correlated with the impact of cancer and patients’ physical condition, and seems to be influenced by components of the event impact, patients’ age, and physical performance. 相似文献
163.
164.
Faking may affect hiring decisions in personnel selection. All the antecedents of faking are still not known. The present study investigates the association between applicants' reactions about the selection procedure and their tendency to fake. The subjects (N = 180) were real-life applicants for a fire and rescue personnel school. After completing the selection process, the applicants filled out a questionnaire about their test reactions (Chan, Schmitt, Sacco & DeSohon, 1998b) and a faking scale, the Balanced Inventory of Desirable Responding (Paulhus, 1991). The results based on Structural Equation Modelling (SEM) indicated that the more positive reactions applicant had about the selection procedure the more impression management they had. The applicant reactions were not associated with self-deception. 相似文献
165.
With a sample of Italians selected from 71 Italian counties (N = 1,868), we performed two multilevel analyses aimed at predicting the perceived risk of crime at local (i.e., in the participants' county of residence) and at societal (i.e., in the context of Italian society) levels. A significant proportion of the variation in local risk perception was at the county level. The following individual variables predicted higher levels of this variable: indirect victimization, the perception of social and physical disorder, being a woman, being poorly educated, and being an older person. Among the ecological predictors, the crime rate and unemployment rate predicted higher levels of local crime risk perception, while the immigrant rate did not. Perceived risk of crime at the societal level did not show significant variation at the county level. Education, being a man, trusting people, and adhesion to post‐materialistic values predicted lower levels of societal crime risk perception, while number of sons/daughters and exposure to television news increased it. The limitations and possible development of this study are discussed. 相似文献
166.
King EC Lee TA McKay SM Scovil CY Peters AL Pratt J Maki BE 《Human movement science》2011,30(2):368-383
A fundamental principle that has emerged from studies of natural gaze behavior is that goal-directed arm movements are typically guided by a saccade to the target. In this study, we evaluated a hypothesis that this principle does not apply to rapid reach-to-grasp movements evoked by sudden unexpected balance perturbations. These perturbations involved forward translation of a large (2 × 6 m) motion platform configured to simulate a “real-life” environment. Subjects performed a common “daily-life” visuo-cognitive task (find a telephone and make a call) that required walking to the end of the platform, which was triggered to move as they approached a handrail mounted alongside the travel path. A deception was used to ensure that the perturbation was truly unexpected. Eleven of 18 healthy young-adult subjects (age 22-30) reached to grasp or touch the rail in response to the balance perturbation. In support of the hypothesis, none of these arm reactions was guided by concurrent visual fixation of the handrail. Seven of the 11 looked at the rail upon first entering the environment, and hence may have used “stored” central-field information about the handrail location to guide the subsequent arm reaction. However, the other four subjects never looked directly at the rail, indicating a complete reliance on peripheral vision. These findings add to previous evidence of distinctions in the CNS control of volitional and perturbation-evoked arm movements. Future studies will determine whether similar visuo-motor behavior occurs when the available handhold is smaller or when subjects are not engaged in a concurrent visuo-cognitive task. 相似文献
167.
Although research has documented the importance of emotion in risk perception, little is known about it in the context of everyday life. Using the Experience Sampling Method (ESM), 94 part‐time students were prompted at random—via cellular telephones—to report on mood state and three emotions and to assess risk on thirty occasions during their working hours. The emotions—valence, arousal, and dominance—were measured using self‐assessment manikins (SAMs) (Bradley & Lang, 1994). Hierarchical linear models (HLM) revealed that mood state and emotions explained significant variance in risk perception. In addition, valence and arousal accounted for variance over and above “reason” (measured by severity and possibility of risks). Six risks were re‐assessed in a post‐experimental session and found to be lower than their real‐time counterparts. The study demonstrates the feasibility and value of collecting representative samples of data with simple technology. Evidence is also provided to demonstrate the statistical consistency of the HLM estimates. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
168.
Simon Schindler Stefan Pfattheicher Marc-André Reinhard 《European journal of social psychology》2019,49(5):1055-1069
Mindfulness is a state of paying conscious and nonjudgmental attention to present-moment experiences. Previous research relates this state to more effective emotion regulation and less emotion reactivity. We therefore hypothesized an attenuating effect of a mindfulness exercise on moral reactions that usually results from a bad conscience when having caused harm. Across five studies, we experimentally induced mindfulness via a short breathing exercise and then assessed harm-based moral reactions. As hypothesized, participants in the mindfulness (vs. control) exercise condition showed (i) attenuated repair intentions after having read a scenario in which participants caused harm to a friend (Study 3) and (ii) attenuated intentions to change harm-causing eating habits (Study 4). Results of Studies 1, 2 and 5 did not provide evidence for our hypothesis. A following meta-analysis across all five studies yielded an overall significant effect of mindfulness in the harm-condition, providing preliminary evidence for a potential downside to mindfulness. 相似文献
169.
Abstract In recent years, the issue of occupational stress and burnout have received increasing research attention. Given the amount of time people spend on work-related activities and the central importance of work to one's sense of identity and self-worth, it is not surprising that occupational stress is regarded as a central area of study. Although burnout is linked to the extensive literature on occupational health, burnout goes beyond occupational health by focusing on specific stressors in the workplace to emphasize total life and environmental pressures affecting health. 相似文献
170.
Stacy Speedlin Kevin Milligan Nohemi Villareal-Bonilla 《Journal of Creativity in Mental Health》2015,10(2):247-257
This article was inspired by my (S.S.) own personal loss. My mentor passed away during spring break of my 2nd year postgraduate school after a short battle with systemic lupus. I remember the deep sadness that I felt when it became apparent that she was coming home from the hospital for the last time. No words can describe the emotions; she had helped me through the toughest times in my academic life. How would I ever get the type of mentorship she provided again? She was there when I almost quit as a young student, back when my anger still got the best of me. She talked me down from the edge so many times; I never expected to be on this journey without her. I dedicate this article to her and mentors like her. Equally, I dedicate this article to mentees who have lost their mentors. I offer my story (in italicized font) in the hopes that it will help others who are dealing with a similar loss. In this article, we attempt to illuminate the true power of mentorship, honor the significance of the relationship between mentor and mentee, and provide a tool useful to anyone who has lost their guide. I share my story in gratitude for my own mentor; I am so thankful that she was a part of my journey and that I can pass on to others the patience she had with me. 相似文献