But what about smart girls? Adolescent self-esteem and sex role perceptions as a function of academic achievement.

Examined adolescent self-esteem and sex-role perceptions as a function of academic achievement with 71 male and 69 female 7th graders divided into 3 groups (below average, average, and above average level of academic competence). Ss responded to a self-esteem inventory under the following 2 sets of instructions: (a) a standard set and (b) a set in which Ss were asked to respond as they thought a member of the same age and grade but of the opposite sex would respond. Results of the standard instruction investigation reveal a significant but moderate difference in self-esteem levels in favor of the boys. Reported levels of self-esteem also rose very significantly and commensurately with higher academic achievement for both sexes. Under opposite-sex instructions, girls attributed significantly but moderately higher levels of self-esteem to boys, and boys attributed significantly lower levels of self-esteem to girls. Girls in the above average group, however, rated boys significantly below themselves. Findings are discussed in terms of attribution theory and the possibility that academically competent girls possess more masculine or androgynous than feminine characteristics. (30 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

évaluation de la validité théorique de l'Inventaire de l'organisation de la personnalité.

Studied the psychometric properties and the theoretical validity of the French translation of the Inventory of Personality Organization (IPO; O. F. Kernberg and J. F. Clarkin, 1995). The IPO was administered to 845 males and females from a Quebec university and from the general Quebec population. Separate exploratory and 1st-level confirmatory factor analyses were performed. The results indicate a good level of conformity between IPO items and the tridimensional primary constructs of O. F. Kernberg's theoretical model of personality organization. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A Posture Control Model and Balance Test for the Prediction of Relative Postural Stability

A balance testing methodology has been developed based on a posture control model which defines relative stability by the degree to which a transient postural perturbation causes the center-of-pressure on the feet to approach the limits of the base-of-support. To minimize anticipatory adaptations and to ensure subject safety, the balance test uses a small-amplitude continuous random or pseudo-random perturbation. The data are used to identify an input-output model, which is then used to predict large-amplitude transient response. Sixtyfour normal subjects were tested, as well as five patients with vestibular lesions and five elderly subjects with a history of falling. Tests were performed with eyes open (EO) and blindfolded (BF), and the EO/BF ratio was calculated. The results showed highly significant differences between young (20-40) and elderly (61-79) normals, but no differences between males and females. In using the balance test to identify the balance-impaired individuals, the BF and EO/BF data provided higher success rates than the EO data. Depending on the modeling method used, the balance test was able to identify up to three of five vestibular patients and five of five elderly fallers, at a false positive rate of 25 percent in the normal subjects.     

The effect of item content overlap on Organizational Commitment Questionnaire–turnover cognitions relationships.

This study examined the effect of overlapping scale content when certain items in the Organizational Commitment Questionnaire (OCQ) are used to predict turnover cognition measures. Analyses of judgmental data collected from 25 subject matter experts suggested that 6 OCQ items reflected a desire or an intent to retain membership in one's organization. Confirmatory factor analyses of survey data from 172 master of business administration alumni showed that the 6 OCQ retention items shared overlapping content with turnover cognitions items. Hierarchical multiple regression analyses of survey data from 330 hotel managers showed that (a) removing the 6 OCQ retention items caused a significant decrease in the variance explained in a measure of turnover cognitions and (b) the size of this effect is larger than that suggested by previous work. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Development and psychometric evaluation of the Trinity Amputation and Prosthesis Experience Scales (TAPES).

Objective: To develop a multidimensional self-report instrument to better understand the experience of amputation and adjustment to a lower limb prosthesis. Design: One hundred four participants completed a mail questionnaire consisting of 3 sections: psychosocial issues, activity restriction, and satisfaction with a prosthesis. Results: Factor analysis revealed 3 psychosocial subscales (General Adjustment, Social Adjustment, and Adjustment to Limitation), 3 activity restriction subscales (Functional Restriction, Social Restriction, and Athletic Activity Restriction), and 3 satisfaction subscales (Functional Satisfaction, Aesthetic Satisfaction, and Weight Satisfaction). The subscales displayed high internal reliability, and preliminary evidence indicated various forms of validity. Conclusion: These findings suggest that the Trinity Amputation and Prosthesis Experience Scales may be applied as a clinical and research tool. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Affective personality and the content of emotional social support: Coping in organizations.

This field study extended previous research by simultaneously examining the influence of affective personality on 4 dimensions of emotional social support and job burnout. Furthermore, the dimensions of emotional social support were examined as to their differential effects on the components of burnout. Results suggest that affective personality characteristics are associated with emotional social support as well as burnout dimensions. Results also indicate that some types of emotional social support appear to guard against burnout, whereas other types appear to contribute to the burnout experience. These findings suggest that types of emotional social support may have different personality antecedents and that distinct dimensions of social support have differential consequences in regard to burnout. Suggestions for future research are offered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Holographic polymer dispersed liquid crystals (HPDLCs) containing triallyl isocyanurate monomer

The morphology and corresponding performance of holographic polymer dispersed liquid crystals (HPDLCs) based on thiol-ene polymer are dependent on a number of factors including the gel point conversion of the polymer, polymerization kinetics, and extent of liquid crystal (LC) phase separation. Previous research of HPDLC reflection gratings made from thiol-allyl ether polymer indicates that increasing polymerization rate in systems with moderate gel point conversion can improve diffraction efficiency (DE). This work examines HPDLC reflection gratings that contain the ene monomer triallyl isocyanurate (TATATO). In HPDLCs, thiol-TATATO polymerization is two times faster than the thiol-ene polymerization of triallyl ether. By substituting TATATO for triallyl ether, the LC droplet size within HPDLC reflection gratings decreases from 100 nm to 25 nm. The dramatic reduction in LC droplet size for thiol-TATATO HPDLCs increases baseline transmission from 55% in thiol-triallyl ether HPDLCs to 90% at 450 nm. Unfortunately, the DE of thiol-TATATO HPDLCs is only approximately 10% due to poorly defined lamellae in the grating morphology. As determined with real-time IR (RTIR) spectroscopy, thiol-TATATO HPDLCs have significantly faster LC demixing kinetics in comparison to thiol-allyl ether HPDLCs. During holographic photopolymerization, the increased rate of LC demixing causes formation of LC droplets throughout the grating. The low DE of thiol-TATATO HPDLCs can be improved by mixing TATATO and allyl ether monomer. The morphology of ternary thiol-ene HPDLC formulations containing TATATO and allyl ether has a well-defined grating structure due to increased LC solubility in the system, an average LC droplet size of 50 nm, and baseline transmission of nearly 85% at 450 nm.     

Assessing the Antimicrobial Activity of Polyisoprene Based Surfaces

There has been an intense research effort in the last decades in the field of biofouling prevention as it concerns many aspects of everyday life and causes problems to devices, the environment, and human health. Many different antifouling and antimicrobial materials have been developed to struggle against bacteria and other micro- and macro-organism attachment to different surfaces. However the “miracle solution” has still to be found. The research presented here concerns the synthesis of bio-based polymeric materials and the biological tests that showed their antifouling and, at the same time, antibacterial activity. The raw material used for the coating synthesis was natural rubber. The polyisoprene chains were fragmented to obtain oligomers, which had reactive chemical groups at their chain ends, therefore they could be modified to insert polymerizable and biocidal groups. Films were obtained by radical photopolymerization of the natural rubber derived oligomers and their structure was altered, in order to understand the mechanism of attachment inhibition and to increase the efficiency of the anti-biofouling action. The adhesion of three species of pathogenic bacteria and six strains of marine bacteria was studied. The coatings were able to inhibit bacterial attachment by contact, as it was verified that no detectable leaching of toxic molecules occurred.     

住宅景观绩效评价:基于现场数据的视觉与生物气候学分析

2011至2012年间,美国风景园林基金会(Landscape Architecture Foundation,简称LAF)的景观绩效系列(Landscape Performance Series)发表了70余个案例研究。住宅景观的项目虽然在专业实践中相当常见,但LAF的文集中却没有涉及。为了填补这一空缺,文章介绍了位于美国科罗拉多州皮特金县(Pitkin County)的3个住宅景观的评估。文章重点关注了其中2个不同项目基于一手现场数据的视觉和生物气候学分析,突出了景观设计实现社会效益的可能性。视觉分析表明,景观设计可以为将近98%的不佳视线提供缓;中。而生物气候学分析表明,归为人体舒适区的户外空间与居民自我感知的区域相一致。除了证实景观设计的有效性,本研究还能为衡量社会层面的景观绩效提供有效的方法,从而有助于改善未来的住宅景观设计。