汇编语言与C／C＋＋语言的混合编程

高级语言运算方便,且易编、易读、易调试修改,但汇编语言执行速度快,可直接对硬件进行控制,为了充分发挥两者的优势和特点,采用混合编程的方法编写程序,可提高程序的运行速度和效率．文章讨论了混合编程的具体方法,并详细讨论了设计中的关键问题．     

Mathematica在中学数学教学及建模中的应用

在中学数学教学实践中介绍数学软件Mathematica的知识及其应用,可以丰富中学数学教学内容,激发学生学习数学的兴趣,帮助学生提高对数学的理解能力、动手能力,同时对培养学生的科研实践能力也具有现实意义.     

对偶问题转化的教学研究

原问题与对偶问题转化是线性规划的一个重点,也是一个难点问题,在现有的文献中,解决此类问题大多是机械的记忆其对应关系,在实际应用中,这种方法既费时又费力。将研究一种新的对应关系,所得结果能更快更精确的写出对偶问题。     

计算机程序设计在线教学模式探索与实践

受新冠病毒疫情影响,大多数院校开展了综合线上教学授课模式。针对计算机程序设计课程,提出SPOC、腾讯会议和雨课堂相结合的远程在线教学模式,并从课前准备、教学过程和评价方案3个方面,论述了教学模式的方案设计与实施过程。学生问卷调查结果和测评成绩表明,该方案体现了以学生为中心、以数据驱动教学的思想,具有较强的合理性和可行性。     

基于 DICE 知识生态模式的 Python 课程教学实践

为保证 Python 语言课程教学质量、提高学生利用 Python 语言解决理论和实践问题的能力,提出基于DICE 知识生态模式的 Python 课程教学实践方法。该方法以构建 DICE 知识生态模式为导向,通过建立知识分布、知识互动、知识竞争和知识演化相融合的多元化教学方法,在培养学生计算思维的基础上,不断加大学生知识储备、提高学生自主学习能力,使学生最终能利用 Python 程序设计语言解决软件专业理论问题和实践应用问题。教学实践表明,该方法可有效促进学生自主学习能力、提高 Python 程序设计语言应用能力。     

面向“卓越计划”的C程序设计教学探讨

依据卓越计划的培养目标,针对C程序设计课程,从教学大纲、教学方法和师资队伍三个方面,探索卓越计划教学模式,提高学生的实践能力和创新能力培养。     

基于Web Work的Java编程考试智能评卷程序的构建及分析

传统的Java编程考试评分依靠人力,效率低下,并且准确性较差,制约着Java教学发展的水平。提出一种针对Java考试的智能评分系统,可以代替人力完成考生编写程序评分。系统可以极大提高Java考试的评卷效率。简要介绍了Java语言,分析了Java智能评卷系统的开发的必要性以及可行性,基于Web Work 2.0平台,给出了系统的智能题库、编译检错模块以及逻辑检错模块的构建思想和部分伪码。     

Prenatal programming of sporting success: Associations of digit ratio (2D:4D), a putative marker for prenatal androgen action,with world rankings in female fencers

Abstract

Associations of the second-to-fourth digit ratio (2D:4D), a putative marker for prenatal androgen action, and of absolute finger length, a putative marker for pubertal–adolescent androgen action, with sport performance were examined in a multinational sample of 87 world-class women épée fencers. Lower (masculinized) digit ratios correlated, although not significantly so, with better current and highest past world rankings. These correlations were significant for right-hand 2D:4D with controls for the most salient factors for 2D:4D (ethnicity) and world rankings (years of international experience, height, and weight). Longer (masculinized) fingers correlated strongly with better current and highest past world rankings; these correlations became insignificant with the same controls. Replicating previous evidence for fencers, left-handedness was much more prevalent in this sample (21%) than in the female general population, and left-handers had somewhat, but not significantly so, lower 2D:4D as well as better world rankings than right-handers. These findings extend related evidence suggestive of prenatal programming of aptitude across a variety of sports, especially running and soccer. Some known extragenital effects of prenatal testosterone that contribute to the development of efficient cardiovascular systems, good visuospatial abilities, physical endurance and speed, and to the propensity for rough-and-tumble play, apparently promote sporting success in adult life.     

Programming Time as a Function of Movement Constraint

Abstract

Although the benefits of exercise are well documented, an international problem of physical inactivity exists. More research, especially theory based, has been recommended. One promising approach for studying exercise behavior is that proposed in the Transtheoretical Model (TTM) of behavior change. This model, however, has received minimal cross-cultural attention and, relative to the current study, measurement instruments have only recently been translated into the Finnish language. The purpose of this study was to assess American and Finnish college students' exercise behaviors on the basis of TTM. Participants were American (n = 169) and Finnish (n = 168) college students who completed language-specific measures of exercise behavior, stage of change, processes of change, decisional balance, self-efficacy, and temptation. The only cultural difference observed was that the American participants rated themselves higher on barrier self-efficacy relative to the Finnish participants. Regardless of nationality or gender, participants classified by their stage of change differed on all the core constructs assessed. These results generally support the utility of TTM for understanding American and Finnish college students' exercise behavior.     

Premotor and Motor Reaction Time As a Function of Response Complexity

Abstract

Two experiments were conducted to identify the response elements responsible for the complexity effect found by Henry and Rogers (1960). An attempt was made to determine if these elements were affecting the premotor time component of simple reaction time (SRT). If they were, a strong case could be made for the argument that neuromotor programming time was affected because premotor time is a more exact estimate of it than SRT. The results revealed that premotor time was unaffected by a forward change in movement direction, but increased as the number of movement parts increased from one to two and as the demand for movement accuracy increased. Thus, increasing the (1) number of parts and (2) accuracy demands were identified as elements of response complexity which increase programming time and support Henry and Rogers (1960) hypothesis that the time to initiate a response becomes longer as the programming process become more complex.