测量回转窑轮带间隙的新方法

本文介绍了一种测量水泥回转窑轮带动态间隙的新方法。其原理是通过直接测定轮带和筒体的回转周期,来自动计算轮带与筒体之间的动态间隙。新方法的测量误差为±1毫米。     

Parameters of teenage alcohol use: A path analytic conceptual model.

Alcohol use and abuse among adolescents is a serious and complex social problem. Previous research in this area has usually consisted of correlational studies that identified individual factors predictive of teenage drinking. Such simple analytic methods, however, did not allow investigation of interrelations among those parameters that may affect adolescent alcohol use. Also, the lack of comprehensive theoretical models of teenage drinking has handicapped the development of effective intervention strategies. In this study, a large sample of high school students was surveyed to evaluate a theoretical model of teenage drinking with latent-variable path analysis. The results suggested may intricate direct and indirect relations among several classes of variables that powerfully predicted teenage drinking. Implications of these results for future research and for treatment and prevention of teenage alcohol abuse are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Flexor digitorum accessorius longus muscle: an etiology of tarsal tunnel syndrome?

Body image, as measured by the Appearance Evaluation and Body Areas Satisfaction scales of the Multidimensional Body-Self Relations Questionnaire (T.F. Cash, 1994b), was assessed in 59 obese women before, during, and after 48 weeks of weight loss treatment. Before treatment, positive ratings of body image were associated with higher levels of self-esteem, lower levels of dysphoria, and fewer previous diets. After 24 weeks and a mean weight loss of 19.4 kg (SD = 6.5), participants showed significant (p < .0001) improvements in body image. A small weight gain from Week 24 to Week 48 was associated with a slight but significant worsening in both measures of body image. Nevertheless, after 48 weeks and a mean weight loss of 16.3 kg (SD = 7.1), body image was significantly improved from baseline (p < .0001). Changes in body image were not related to changes in weight. Future studies are needed to separate the effects of treatment and weight loss on body image in obese persons.     

Characterizing user navigation through complex data structures

As part of the general study of user navigation through interactive databases, a set of indices is proposed to characterise users' search sequences. These indices are presented as an attempt to capture some of the psychologically significant aspects of the movement of users within interactive data-bases. An example of the use of the indices is given in reference to an experiment to compare front-ends to a data-base program. Their strengths and weaknesses are discussed in the light of this experiment. Their potential as a basis for the precise definition of search strategies such as browsing and scanning is also considered.     

Age effects and revised scoring of the Canter BIP for identifying children with cerebral dysfunction.

Performed an item analysis of the Canter Background Interference Procedure (BIP), a test for brain damage, to select items and weight them to maximize the efficiency of discriminating children with cerebral dysfunction from those with no dysfunction. Attempts to improve discrimination of these 2 groups of Ss on the BIP were successful only after age differences were considered, especially between 10- and 11-yr-old children. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Time and false electromyographic feedback: Effect on tension headache.

Measured frontalis EMG amplitude in 20 19–38 yr old Ss with tension headaches. Of these, 10 were given auditory feedback that accurately reflected EMG levels, and the other 10 received false feedback. Ss receiving relevant feedback significantly decreased both EMG and number of headaches as compared to controls. Controls did, however, show decreasing trends in the 2 variables. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Fires and human behaviour: Emerging issues

A range of questions and issues within the study of behaviour and fires, which has not been fully explored is briefly presented. It draws upon a five stage model of human behaviour in relation to fires. It is argued that a great deal has yet to be learnt in relation to each of these stages.The various questions raised and approaches to answering them, are illustrated from a number of studies which have been carried out, including a study of emergency “999” calls and a content analysis of medial reporting of fires.In conclusion it is argued that behavioural studies of fires hold the potential for a radical impact on fire prevention and fire safety.