新媒体用户的内容消费特征与媒介使用模式——以百度百家号的调研分析结论为例(2)

本文把视线聚焦在新媒体的媒体语境当中,以百度百家号为例,考察了新媒体用户在内容层面、认知层面和行为层面上的认知与使用模式。基于对百度百家号用户媒介认知与媒介使用情况的网络问卷调查数据,本研究从新媒体用户重点关注的文章类型、内容来源的关注度以及网络内容的信任度三个方面分析了新媒体用户的内容消费特征并提出了优化网络内容平台内容建设机制及信息扩散机制的策略与建议。在用户层面,需重点培养激活核心用户以提升内容生态的活跃度;在平台层面,需纳入优质内容资源,重视品牌建设。     

论习语语义形成过程中的隐喻理据--从"面部"说起

体验主义认为,语言源于人们的生活体验,语言中的词汇通过隐喻的影射作用,获得新的语义。从身体的基本部位之一———"面孔"入手,运用认知语言学理论,结合实证的研究方法,可以证明自然语言中的大部分习语和普通词汇一样,其抽象语义也是通过隐喻的影射作用而获得的;在不同语言的习语中,隐喻在很大程度上具有共性。     

抑制机制发展:认知发展研究的新视野

过去的认知和认知发展研究偏重于对激活过程的考察，随着当前认知科学和神经科学的进一步发展，从新的角度在更高的层次重新触发了人们对认知抑制及其发展机制的兴趣，使之成为国际认知和认知发展领域正在迅速崛起的一个重要课题。从无意向抑制和有意抑制两个方面的介绍可了解认知和认知发展领域近期关于抑制及其发展研究的状况和进展。     

写作智慧内涵及构成刍议

建构写作智慧体系是写作教学的出发点和归宿。建构写作智慧体系,需要整合五个方面的内容:传递写作知识、提升认识智慧、传导认知策略、培养写作技能、传授写作策略。     

中学生函数概念认知发展研究

函数知识是中学数学的核心内容，学生关于函数概念的认识发展可分成以下3个阶段：（1）作为“算式”的函数；（2）作为“变化过程”的函数；（3）作为“对应关系”的函数。学生是否真正理解函数概念，关键在于其表象的形成和发展水平。     

内容分布与认知要求双重视角下数学课程标准比较研究--基于“中国”“美国”“新加坡”小学初中学段之比较

选取在国际上有代表性的美国及亚洲的新加坡与中国的小学及初中数学课程标准为研究对象,从内容分布与认知要求两个维度进行编码比较研究。主要研究结果显示三国数学课程标准分别呈现如下特征：中国在内容维度上,几何内容拥有的认知要求最多,在认知要求维度上最重视数学推理,并且数学推理主要是以几何内容为主要载体的;美国和新加坡在内容维度上,数与代数拥有最多而丰富的各类认知要求,在认知要求维度上两国均十分重视“问题解决”,美国还重视“关联”类认知要求。     

Effects of tapering on physical match activities in professional soccer players

ABSTRACT

This study aimed to examine: (i) the effect of decreasing training load (TL) during taper weeks on physical match activities in professional soccer players, and (ii) to disclose the relationship between weekly TL and physical match activities. Rating of perceived exertion was collected after each training session and match to quantify the TL in 19 professional players over 17 standard and 7 taper weeks during the season. Physical match activities were quantified by a computerised match analysis system and compared between standard training and taper weeks. Compared to standard weeks, the duration and frequency of training sessions during the taper weeks decreased (?21.7% and ?18.8%, respectively; P < 0.01) with no change in intensity (?4.8%; P = 0.09). Consequently, the weekly TL decreased during the taper weeks (?25.5%; P < 0.01). Increases in distance covered by intense running (+15.1%; P < 0.05), high-intensity running (HIR) (+15.7%; P < 0.01), number of sprints (+17.8%; P < 0.05) and number of high-speed runs (+15.7%; P < 0.05) were observed during the seven matches played after the taper weeks. High relationships were observed between TL and HIR distance covered, number of HIR and number of sprints (r = ?0.53; r = ?0.55; r = ?0.65, respectively; P < 0.01). Decreasing TL during taper weeks by reducing training duration and frequency but maintaining intensity was associated with an increase in physical activities during matches. However, it needs to be determined whether tapering or other match factors led to the changes in match activity.     

标记性及其在母语迁移中的作用

母语迁移是二语习得研究中的重要领域之一。语言学和认知学理论将标记性纳入母语迁移的研究中。语言学以母语与目的语之间的标记差异做比较,说明母语迁移的可能性;认知学则以母语特征的典型范畴为基点,分析二语学习者对母语迁移的选择性。标记性理论的提出对英语教学和对外汉语教学有着十分重要的启示。     

认知视角下的英语矛盾修饰法

作为一种形象而又生动的修辞方式,英语矛盾修饰法被广泛应用于文学作品及日常言语中.英语矛盾修饰法由两个互相矛盾的词或词组组合在一起,体现出夸张、幽默等强烈感情色彩.然而,心理语言学家们认为,矛盾修饰法不仅是一种普通的修辞格,还是一种认知机制.人们对矛盾修饰的理解体现出一定的认知过程.     

Force–velocity property of leg muscles in individuals of different level of physical fitness

The present study explored the method of testing muscle mechanical properties through the linear force–velocity (F–V) relationships obtained from loaded vertical jumps. Specifically, we hypothesised that the F–V relationship parameters depicting the force, power, and velocity of the tested muscles will differ among individuals of different physical fitness. Strength trained, physically active, and sedentary male participants (N = 10 + 10 + 10; age 20–29 years) were tested on maximum countermovement and squat jumps where manipulation of external loads provided a range of F and V data. The observed F–V relationships of the tested leg muscles were approximately linear and mainly strong (median correlation coefficients ranged from 0.77 to 0.92; all p < 0.05), independently of either the tested group or the jump type. The maximum power revealed higher values in the strength trained than in the physically active and sedentary participants. This difference originated from the differences in F-intercepts, rather than from the V-intercepts. We conclude that the observed parameters could be sensitive enough to detect the differences among both the individuals of different physical fitness and various jump types. The present findings support using loaded vertical jumps and, possibly, other maximum performance multi-joint movements for the assessment of mechanical properties of active muscles.