Exploring the effects of substituting basketball players in high-level teams     

Miguel-Ángel Gómez  Roberto Silva  Alberto Lorenzo  Rasa Kreivyte  Jaime Sampaio 《Journal of sports sciences》2017,35(3):247-254

Substituting basketball players during competition is a key process to optimise collective performance. Available research on this topic is scarce, probably due to the difficulty in isolating these effects; thus, the aim of this study was to identify the temporal effects of substitutions in basketball (Spanish professional basketball league). The sample was composed of 1118 substitutions gathered from 21 basketball games. The analysed variables were coach-controlled (player and team’s personal fouls, player in and player out roles, player’s in and out minutes on-court and timeout situation); on-court (foul committed, free throws, 2- and 3-point field-goal effectiveness) and situational variables (scoreline, quality of opposition, game location and game quarter). The results showed positive scoring performances after the substitution for all the analyses. During the first quarter, there were significant effects for fouls committed, scoreline and game location after the substitution. The player’s out personal fouls, free-throw effectiveness, player in, minutes on-court player in, timeout situation and 3-point field-goal effectiveness were significant during the second quarter. The team’s personal fouls, game location, and scoreline were identified as important in the third quarter. The fourth quarter did not show significant effects on the independent variables. Current findings allow optimising coaches’ plans and team management of on-court and bench players throughout the game.  相似文献   

Separated and integrated perspectives on environmental,economic, and social dimensions – an investigation of student views on sustainable development     

Teresa Berglund  Niklas Gericke 《Environmental Education Research》2016,22(8):1115-1138

The sustainable development (SD) concept is based on the idea that economic and social development should be linked to the environment. However, controversies about various associated issues often arise due to the differences in protagonists’ viewpoints, depending partly on whether they focus mainly on environmental, economic, or social dimensions and partly on ideological stances related (for instance) to the optimal ways of promoting economic growth and social justice. This study investigates views of 638 Swedish upper secondary students who responded to a questionnaire probing their views of SD from two perspectives. In the first, the dimensions were separately introduced, so the respondents only had to consider one dimension at a time. In the second, the dimensions were introduced in an integrated fashion, so the respondents had to consider effects related to all three dimensions. The results strongly indicate that the students’ views and priorities concerning the dimensions depend on both the perspective and the context. Implications for teaching and learning are discussed.  相似文献   

Optimal restructuring strategies under various dynamic factors     

MENG Qing-xuan 《浙江大学学报(A卷英文版)》2007,8(6):932-938

Corporate restructuring was identified as a new industrial force that has great impact on economic values and that therefore has become central in daily financial decision making. This article investigates the optimal restructuring strategies under different dynamic factors and their numerous impacts on firm value. The concept of quasi-leverage is introduced and valuation models are built for corporate debt and equity under imperfect market conditions. The model＇s input variables include the quasi-leverage and other firm-specific parameters, the output variables include multiple corporate security values. The restructuring cost is formulated in the form of exponential function, which allows us to observe the sensitivity of the variation in security values. The unified model and its analytical solution developed in this research allow us to examine the continuous changes of security values by dynamically changing the coupon rates, riskless interest rate, bankruptcy cost, quasi-leverage, personal tax rate, corporate taxes rate, transaction cost, firm risk, etc., so that the solutions provide useful guidance for financing and restructuring decisions.  相似文献   

大学生职业自我效能、职业价值观与就业能力的关系     

陈功香  芦吉虎 《中国特殊教育》2011,19(10)

在对204名大四学生采取问卷调查的基础上,探讨了大学生职业自我效能、职业价值观与就业能力的关系,结果表明:(1)职业自我效能、职业价值观和就业能力中的职业成长能力存在显著相关.(2)文科生的职业自我效能、就业能力高于理科生.(3)高职业自我效能和高职业价值观的大学生的就业能力均高于低自我效能和低职业价值观的大学生.(4)职业决策自我效能在职业价值观和就业能力之间起中介作用.  相似文献   

全人教育理念下的高中学生发展     

庆群 《创新人才教育》2019,(1):6-11

育人是一项系统复杂的工程,因为教育的对象都是富有个性、具有一切成长可能性的孩子。促进每个学生德智体美劳全面发展,并使他们找到适合自己的成长路径,是每个教育者的责任。西安市铁一中学坚持全人教育理念,探索教育的多维化与融通性,为每个学生提供最适合的教育,促使每个学生实现全面而有个性的发展。同时,学校积极推进核心素养的校本化表达,突出办学特色,树立办学品牌。  相似文献   

企业决策的诚信分析     

刘祚柱 《南宁职业技术学院学报》2007,12(1):91-93

企业决策的诚信分析是市场经济的需求,也是决策理论的重要课题。影响企业诚信决策的要素有个体层面、组织层面、社会层面和利益相关者等。一个完整的企业决策过程包括提出问题、确定目标→信息整合、设计方案→分析方案、选定方案→执行决策、信息反馈。  相似文献   

主成分分析法在工业经济效益指标评价中的应用     

赵海青 《保定师专学报》2004,17(4):12-14

主成分分析法能够在保证原始数据信息损失最小的情况下，以少数的综合变量取代原有的多维变量，使数据结构简化，并且客观地确定权数，避免主观随意性，是经济效益综合评价的一种简单易行的有效方法．运用第一主成分分析，对全国16个省、直辖市的主要工业经济效益进行排序．  相似文献   

浅谈文化遗产保护的整体观     

袁予 《江苏广播电视大学学报》2011,22(2):64-66

目前,我国文化遗产保护存在着文保意识淡漠、文化遗产保护与城建矛盾突出,以及文保技术力量与人员不足等问题,有效做好文化遗产保护工作,必须在全社会树立文化遗产保护的整体观。文化遗产保护的整体观,涵盖对传统文化遗产的发掘与研究、宣传与教育、修复与保护、利用与传承等诸多方面,它们互相影响,缺一不可。  相似文献   

全球150个国家电子政务发展及其对我国的启示:指数变动、阶段划分与对标分析     

张会平  宋晔琴  王思懿 《科技管理研究》2020,40(24):208-215

[目的/意义] 探析全球电子政务发展态势并识别我国电子政务建设与领先国家的差距,指导未来建设和研究。[方法/过程] 以2003-2018年《联合国电子政务调查报告》数据完整的150个国家为研究对象,采用交叉表等分析方法探析全球电子政务发展态势;选取美国、澳大利亚、英国、加拿大等作为标杆,针对每项指标数据进行对标分析。[结果/结论]全球电子政务发展经历了在线信息服务为重心、在线交互服务为重心、线上线下服务一体化等三个阶段,目前正全力推进面向场景应用的电子化连接和大数据分析;我国应以一体化在线政务服务平台建设为契机,通过跨层级、跨部门及政府与社会整合,全面推动各领域的场景应用。  相似文献   

中国定圆足球梦——再论球艺     

茅鹏 《体育与科学》1997,(3)

事业的长期停滞常由于基本理论的失误。我国足球长期奉行的基本理论,在自然体育学方面,就是体能与技战术分家而以体能为基础;在社会体育学方面,就是用行政手段统一全国训练方法的大框架。从足球建设丰富的经验教训来看,一些重大的学术问题已经提到面前,需要研究解决。在这个基础上形成进步的战略决策,中国定圆足球梦。  相似文献