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THE ACID, ACIDS, and SCAD profiles are examples of subtest patterns from the WISC-III that have been proposed as potentially helpful in differential diagnosis of exceptionalities. This study investigated the prevalence and utility of these profiles in a large referred population. Although the incidence rates of the ACID and ACIDS profiles in some groups were greater than rates reported for the standardization sample, incidence levels were found to be low in all clinical groups studied. The SCAD profile evidenced generally higher incidence rates but none greater than the rates reported for the standardization sample. The findings support the use of conditional probabilities and incremental gains based on the actual incidence from a referred population to assist in differential diagnosis; however, none of the profiles are recommended as a criterion for determining exceptionality.  相似文献   
773.
儿童和青少年时期系统的足球训练,可以促进年轻足球运动员专项技能和专项体能的发展。旨在结合最新的研究成果、科学知识和应用实践,区分5岁到成年足球运动员的训练目标和方法,审视足球长期教育过程是否符合现代足球训练、运动表现和比赛的要求。强调各个年龄组足球运动员应有特定的足球教育理念、训练目标和方法,这对青春期(U15和U17)及青春期后(U19和U21)的足球运动员尤其重要,因为他们必须准备并确保顺利过渡到精英足球运动员水平。  相似文献   
774.
Physical training is beneficial and should be included in the comprehensive management of all patients with COPD independently of disease severity. Different rehabilitative strategies and training modalities have been proposed to optimize exercise tolerance. Interval exercise training has been used as an effective alternative modality to continuous exercise in patients with moderate and severe COPD.Although in healthy elderly individuals and patients with chronic heart failure there is evidence that this training modality is superior to continuous exercise in terms of physiological training effects, in patients with COPD, there is not such evidence. Nevertheless, in patients with COPD application of interval training has been shown to be equally effective to continuous exercise as it induces equivalent physiological training effects but with less symptoms of dyspnea and leg discomfort during training.The main purpose of this review is to summarize previous studies of the effectiveness of interval training in COPD and also to provide arguments in support of the application of interval training to overcome the respiratory and peripheral muscle limiting factors of exercise capacity. To this end we make recommendations on how best to implement interval training in the COPD population in the rehabilitation setting so as to maximize training effects.Key Words: interval exercise training, chronic obstructive pulmonary disease, exercise tolerance, pulmonary rehabilitation  相似文献   
775.
More than 20 years ago, electrical impedance spectroscopy (EIS) was proposed as a potential characterization method for flow cytometry. As the setup is comparably simple and the method is label-free, EIS has attracted considerable interest from the research community as a potential alternative to standard optical methods, such as fluorescence-activated cell sorting (FACS). However, until today, FACS remains by and large the laboratory standard with highly developed capabilities and broad use in research and clinical settings. Nevertheless, can EIS still provide a complement or alternative to FACS in specific applications? In this Perspective, we will give an overview of the current state of the art of EIS in terms of technologies and capabilities. We will then describe recent advances in EIS-based flow cytometry, compare the performance to that of FACS methods, and discuss potential prospects of EIS in flow cytometry.  相似文献   
776.
Juvenile obesity is increasing worldwide. Preventive strategies are warranted. The school-based Children's Health Interventional Trial (the CHILT Project) combines health education and physical activity for children. The effect on obesity and physical performance was studied after four years in 12 primary schools compared with five control schools. Anthropometric data were recorded. Physical performance was measured by a coordination test for children (balancing backwards, one-legged obstacle jumping, lateral jumping, sideways movements) and a 6-min run (endurance). No difference in the prevalence and incidence of overweight and obesity was found between the intervention and control schools before and after the intervention. Remission of overweight was higher in the intervention schools (23.2 vs. 19.2%), but not significant. An increase in coordination related to lateral jumping and balancing backwards was apparent in the intervention schools (30.6, s = 10.8 vs. 26.1, s = 10.8, P = 0.005; 21.8, s = 11.8 vs. 19.4, s = 11.7, P = 0.007), and the increase in endurance performance tended to be higher in intervention schools (100.8, s = 122.7 vs. 92.8, s = 126.0, P = 0.055), adjusted for age, sex, baseline test result, and body mass index at final examination. Therefore, preventive intervention in primary school offers the possibility to improve physical performance in children. The prevalence and incidence of obesity were not affected.  相似文献   
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Beginning in 1979, certain states extended extra copyright protection, known as “moral rights” protection, to visual artists. Moral rights protection, which was incorporated into U.S. copyright law in 1990, ensures that works cannot be altered in a manner that would negatively impact the reputation of the artist. Using difference-in-differences regression strategies, we compare artists and non-artists in states with moral rights laws to those in states without these laws, before and after the laws are enacted. This enables us to test the impact of the laws on the behavior of artists, consumers, and policy makers. Our analysis reveals that the average artist’s income falls by around $4000 per year as a result of moral rights legislation, but we find no impact of the laws on artists’ choices of residence or on state-level public spending on the arts.  相似文献   
780.
The ability to examine within-person change is essential to test process-based theories in sport and exercise psychology. Longitudinal data, whether experimental or observational, are prerequisites to be able to examine change processes, but most longitudinal studies in sport and exercise psychology focus solely on between-person/group differences, not on within-person change. In this review, we (1) provide researchers in the sport and exercise psychology field with a framework for longitudinal research that focuses on within-person change; (2) provide an overview of how researchers in sport and exercise psychology currently analyse longitudinal data, which showed that most longitudinal studies focus on between-person/group differences; and (3) provide examples of statistical models for analysing longitudinal data that correspond to the framework for longitudinal research. In the examples, we focus on latent variable modelling, such as latent growth-curve modelling and latent change-score modelling, which capture within-person change. We argue that there is a need for stronger emphasis on the match among theory of change, temporal design, and statistical models when designing longitudinal studies in sport and exercise psychology.  相似文献   
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