篮球赛中不同进攻阶段对进攻效果的影响

理论运用实践是体育科学的主要目的。体育科研人员必须将其研究信息成果,及时传递蛤教练及运动员,使他们在实践中加以应用。本研究针对1999年在法国举行的欧洲篮球冠军赛,通过对20场比赛的录像解析,力图分析不同进攻阶段对进攻产生的影响。所有数据的统计及处理,均利用一计算机篮球软件(BasketballAnalysisSystem)来处理。研究结果表明,在不同的进攻阶段内,进攻次数、投篮命中率、助攻等方面存在着差异。     

Music search engines: Specifications and challenges

Nowadays we have a proliferation of music data available over the Web. One of the imperative challenges is how to search these vast, global-scale musical resources to find preferred music. Recent research has envisaged the notion of music search engines (MSEs) that allow for searching preferred music over the Web. In this paper, we examine the growing research topic of MSEs, and provide potential specifications to follow and challenges to face.     

Attitudes and values in sexual behaviour and sex education: A cross-cultural study among University students in Greece and Scotland

This article describes a survey comparing university students in Greece and Scotland with regard to their attitudes to sexual development and sex education. A questionnaire was constructed in Greek and English and was completed by 436 university students in Greece and an equivalent number in Scotland. Comparative results show a tendency for students' attitudes to converge with regard to gender identity, inter-sexual relations, appropriate forms of sexual behaviour and the factors that shape it. Differences exist regarding the aims of sex education, the concept of a sexually mature person, and the moral principles that should govern inter-sexual relations.     

Morphology of the deltoid muscles in elite tennis players

The aim of this study was to examine the deltoid muscle properties of the dominant and non-dominant arm of Greek professional male tennis players. Eight male tennis players (mean age 22.0 years, s = 3.2) were subjected to biopsy of the deltoid muscle of both arms. Adenosine triphosphate (ATPase) histochemistry and myosin heavy chain (MHC) composition were performed on the samples with homogenate electrophoresis. No significant differences were observed in the percentage of types I, IIa, IIab, and IIb muscle fibres between the deltoid muscles of the two arms. Types I, IIa, and IIx muscle fibres of the dominant and non-dominant deltoid muscles did not differ significantly for MHC isoform composition. Type IIab muscle fibres showed a similar cross-sectional area (CSA) percentage distribution between the two arms. The CSA percentage for types I, IIa, and IIb muscle fibers did not differ significantly between the dominant and the non-dominant arm. We conclude therefore that regular tennis training probably does not lead to any significant changes in the muscle fibre types of the dominant and non-dominant arms of elite tennis players.     

Pre-service teachers’ views about the use of digital educational games for collaborative learning

Education and Information Technologies - Digital educational games (DEGs) constitute an effective teaching approach, particularly when they are used in combination with collaborative learning...     

Students’ expectations about earnings and employment and the experience of recent university graduates: Evidence from Cyprus

The employability of university graduates constitutes a major policy concern in both developed and developing nations. In this context, the present study uses self-reported data to compare the earnings and employment expectations of university students, and the realised earnings and employment paths of recent graduates. The sample consisted of 476 individuals (243 students and 233 graduates of the University of Cyprus). The analysis points to both differences and similarities in the effect of different variables on (a) the probability of employment for graduates and the probability of expected employment for students, and (b) the conditional salary of graduates and the conditional expected salary of students. The completion of postgraduate studies, the area of family residence and the department of study are the key factors affecting the graduates’ employment probability, while the students’ probability of expected employment is determined differently, namely by characteristics such as secondary education performance and studies in the business administration department. Gender and family income are among the main determinants of both the graduates’ actual earnings and the students’ expected earnings, with women earning or expecting to earn less than men, and graduates/students with higher family incomes earning or anticipating to earn more than their lower income counterparts. The findings are compared to those of similar studies in other countries.     

From the fear of death to the fear of ‘dissimilar other’: a research in elementary school classrooms

Social stereotyping and prejudice constitute pressing societal problems and have many causes. Terror Management Theory offers a compelling and heavily researched account of individuals’ reactions towards ‘dissimilar others’ when faced with thoughts of mortality. Building from previous research with adult samples, the present study aimed to explore whether terror management processes can have an effect on children's attitudes towards members of an ethnic out-group. We used focus group as a method of collecting the data. Results showed that reminders of mortality led to an increase in stereotypic thinking, to negative evaluations of the out-group and to ethnic labelling. The results of the present study emphasise the necessity for interventions that would take into account, besides the role of cognition and the role of micro- and macro-level environment, other determinants, such as the role of incidental affect, which contribute to the genesis and maintenance of prejudice and in-group bias in children.     

Plant blindness: a faddish research interest or a substantive impediment to achieve sustainable development goals?

Abstract

Plant blindness is an important phenomenon with a growing body of literature. According to researchers, the educational system is listed both among the causes and solutions to this issue. Therefore, previous work regarding this matter has mainly focused on the educational context. While sustainable development is a top priority for every modern society, it has not yet been established whether plant blindness can be a substantive impediment towards this direction. This paper is an attempt to examine any significant relation between this phenomenon and the Sustainable Development Goals (SDGs), as these are determined by the United Nations. Through an in-depth, narrative literature review, we show that plant blindness should not be examined lightly as just a differentiation in preference regarding plants and animals. Ignoring flora can be an opposing factor to environmental balance and directly hinder the achievement of the vast majority of SDGs. In that context, the restriction of plant blindness becomes a vital issue for the scientific community and the policy makers. Moreover, sustainable education steps in as the main social process for changing perceptions and dealing with this kind of challenges, but through a modern perspective of place-based education, collective consciousness and vital coalitions of stakeholders.     

Aggressive and Prosocial Behaviour in Young Greek Children

Aggression, the behaviour that is intended to cause harm to persons or property, not socially justifiable, a problem of modern society and education, has been a research focus of developmental psychologists and educators in the last few decades and has been extensively studied, because of its consequences in our life. This aspect of emotional expression in young children seems to take different forms in different cultures.

At the opposite end of the spectrum from the antisocial behaviour is the prosocial behaviour, the aspect of moral contact that includes socially desirable behaviour (such as sharing, helping and cooperating). Prosocial behaviour or altruism has also attracted recently the interest of the researchers as it seems to be a human characteristic of high value that emerges from a very early stage of child development.

In this paper we present the results of an empirical study in which we try to show the ways that the young Greek children of preschool age express aggressiveness and altruism. Actually we combine the results of two pieces of research. One that has been conducted in a natural setting by observing antisocial behaviour of the children in a nursery school and the other by asking about 300 mothers of young children to prescribe the ways their children display prosocial behaviour. The results will be discussed in connection with some aspects of the early childhood moral education.     

Multipoint videoconferencing with scalable video coding

INTRODUCTION Modern videoconferencing systems allow two o more participants to communicate with each other in real-time using both audio and video. Conventionally when more than two participants are present, a sta configuration is generally employed, wherein a Mul tipoint Conferencing Unit (MCU), or bridge, is util ized to connect to all participants and coordinat communications between them. The general archi tecture is shown in Fig.1. Fig.1 Multipoint videoconferencing system Network…