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251.
Frank Markham Brown 《逻辑史和逻辑哲学》2013,34(4):337-348
In 1952, Quine showed that the problem of reducing a propositional formula to a simplest normal equivalent can be solved in two steps, viz., (i) express the given formula, Φ, equivalently as the disjunction of all its prime implicants, and (ii) find all non-redundant disjunctions of the latter that are equivalent to Φ (Quine 1952 ). However, it seems not generally known that an ingenious form of the same two-step process was published by Hugh McColl in 1878. 相似文献
252.
The current study examined the role of endorsed stereotypes about men and women and perceived peer norms in predicting three distinct types of stereotypical sexualized behaviors (verbal, physical, and indirect) among late adolescents. Two hundred and fifty U.S. college students from the mid-South (178 females, 72 males) between the ages of 17 and 19 completed a number of surveys regarding sexual gender stereotypes (e.g., men are sex-focused and women are sexual objects), perceived peer norms about the acceptability of stereotypical sexualized behaviors (SSB), and their own SSBs. Results revealed that most college students have perpetrated these SSBs at least once, and that the most common form of sexualized behavior was verbal SSB, such as rating someone’s body. Results also showed that, although the young men and women did not differ in their perpetration of indirect SSBs (e.g., sending pictures via text), young men perpetrated more verbal and physical SSB than women. For young women, endorsing the idea that men are sex-focused predicted all three types of SSB. For young men, endorsing the stereotype that men are sex-focused predicted verbal and physical SSB, and endorsing the stereotype that women are sex objects predicted physical SSB. Importantly, perceived peer group norms were a significant predictor of all three types of SSB for both women and men. Thus, the current study suggests that distinct types of stereotypical sexualized behaviors are common among college students, and are predicted by an individual’s stereotypes about men and women and perceived peer norms. 相似文献
253.
Anthony J. Rosellini Lauren A. Rutter Michelle L. Bourgeois Benjamin O. Emmert-Aronson Timothy A. Brown 《Journal of psychopathology and behavioral assessment》2013,35(3):356-365
The present study aimed to examine the relevance of age of onset to the psychopathology of social phobia using a large clinical sample of 210 patients with social phobia. The two most common periods of onset were during adolescence (ages 14–17) and early childhood (prior to age 10). Structural regression modeling was used to test predictions that early onset social phobia would be associated with greater severity of the disorder, stronger current symptoms of depression and anxiety, greater functional impairment, and more pronounced levels of emotional disorder vulnerabilities (e.g., neuroticism/behavioral inhibition, extraversion, perceptions of control). Logistic regression was used to evaluate relationships between age of onset and the presence of acute and chronic stress at the time of onset. Results showed that earlier age of social phobia onset was associated with stronger current psychopathology, functional impairment, and emotional disorder vulnerabilities, and that later age of onset predicted the presence of an acutely stressful event around the time of disorder emergence. These results are discussed in regard to their clinical implications and congruence with prominent etiological models of the emotional disorders. 相似文献
254.
The authors served as Special Issue Guest Editors for this issue of JPSSM. In this introduction to the Special Issue, they discuss how the issue was conceived and produced, and express their gratitude to the many colleagues who worked to make the issue a success. 相似文献
255.
Steven P. Brown Kenneth R. Evans Murali K. Mantrala Goutam Challagalla 《Journal of Personal Selling & Sales Management》2013,33(2):155-167
The authors discuss the need to adapt research in three substantively related but paradigmatically diverse research domains (salesperson motivation, control systems, and compensation) in light of the evolving selling environment. A key objective is to suggest the desirability of integrating these literatures, which, ultimately, all seek to inform management regarding how salespeople and sales organizations can be encouraged to become more productive. The authors maintain that specification of the right goals and metrics constitutes a fundamental common denominator across the three literatures. 相似文献
256.
Abstract The use of shock tactics to motivate people to learn more about AIDS and to take appropriate protective action characterised the approach adopted by the national health authorities in Australia during 1987. The rationale underlying this approach is critically examined, particularly in the light of results obtained from surveys of community concern and knowledge about AIDS in the state of South Australia before the campaign and after it had been in progress for some five months. Contrary to expectations no significant increases in either personal or social concern were found; in fact, among older respondents personal concern had decreased significantly. Levels of knowledge about AIDS, in general, remained unchanged, apart from an increase in acceptance of the safety of blood transfusions from a very low to a somewhat higher level. Among a minority of respondents (29%) who approved of the campaign and also believed they had been influenced by it, personal and social concern about AIDS, but not knowledge, was significantly greater than among others. The view that fear-inducing techniques can be used to bring about increases in knowledge about AIDS was not supported, although some positive effects on the social attitudes of respondents most affected by the campaign are suggested. 相似文献
257.
E. Beard P. Aveyard A. McNeill S. Michie J.A. Fidler J. Brown 《Psychology & health》2013,28(9):1118-1133
Objectives: Use of nicotine replacement therapy (NRT) for smoking reduction (SR) is linked to higher quit attempt rates than SR without NRT. This study aimed to assess the possible mediating roles of confidence in ability to quit, enjoyment of smoking and motivation to quit in this association. Design: Cross-sectional survey. Main outcome measures: Smokers were asked if they were currently attempting SR, and if they were, whether they were using NRT. Motivation to stop, enjoyment of smoking, confidence in ability to stop, and previous quit attempts, were also assessed. Results: There was no evidence that confidence in ability to quit or enjoyment of smoking mediated the association between the use of NRT for SR and attempts to quit. Only motivation to stop partially mediated between the use of NRT for SR and attempts to stop (indirect effect: odds ratio 1.08, p?<?0.001). Conclusion: Although this study is limited by its cross-sectional design, the findings point towards the possibility that the use of NRT to aid SR may promote attempts to stop through increasing motivation to quit but not by increasing confidence or by reducing enjoyment of smoking. Longitudinal studies are required to draw firmer conclusions about the possible mediating effects of motivation to quit. 相似文献
258.
Time pressure is often cited as a reason for non-attendance at mammography screening, although evidence from other areas of psychology suggests that time pressure can improve performance when barriers such as time pressure provide a challenge. We predicted that time pressure would negatively predict attendance in women whose self-efficacy for overcoming time pressure is low, but positively predict attendance when self-efficacy is high. Time pressure was operationalised as the self-reported number of dependent children and others, and average number of working hours per week. Australian women were surveyed after being invited to attend second or subsequent screenings at a free public screening service, and subsequent attendance monitored until six months after screening was due. The majority (87.5%) attended screening. Women with more dependent children and higher self-efficacy showed greater attendance likelihood, and women with fewer non-child dependants and lower self-efficacy were less likely to attend. Working hours did not predict attendance. Findings provide partial support for the idea that time pressure acts as a challenge for women with high self-efficacy. 相似文献
259.
This study explored adjustment and adaptation in families living with Autism Spectrum Disorder (ASD). Data on family resilience were collected from 19 biological mothers of children with ADS. The data were analysed qualitatively and quantitatively to yield information on factors that enable these families to bounce back from the diagnosis and accompanying challenges with regard to ADS. The findings from the qualitative analysis indicate that social support, the spousal relationship, and family time, togetherness and routines are the most important resilience-promoting factors with ASD. Family hardiness, family problem-solving communication, and family time and routines were significant resilience resources. 相似文献
260.
Ellie Brown Naomi Moller Christine Ramsey-Wade 《Counselling and Psychotherapy Research》2013,13(4):254-262
Aims: Recording therapy sessions has become part of routine practice amongst trainee psychotherapists. To date most research has focused on the benefits of recording sessions to support clinical supervision. There are few data about the benefits or risks for clients. This study aimed to explore the views of clients who had had their therapy sessions recorded and therapists who had recorded sessions. Design: Five clients and 25 therapists completed a qualitative survey, the results of which were analysed using thematic analysis. Findings: All clients and several therapists reported that the recording devices are soon forgotten. Both therapists and clients reported the benefits of recording as being purely for the therapist with none identified for clients. Conclusions: It was observed that clients perhaps did not always understand how recordings were used, suggesting the need for clearer practice guidance. 相似文献