关于逻辑运算"→"和BCK运算"*"

K.Iseki和S.Tanaka在文[1]中提出了正蕴函BCK－代数的概论，以此研究了数理逻辑中逻辑运算“→”的若干性质，进而探讨了逻辑运算“→”与BCK－代数中运算“*”之间的关系。     

大系统的部分联结稳定性

本文通过导入固定互联矩阵的概念,提出大系统部分联结稳定性的定义,进而利用向量李雅普诺夫函数法分别研究线性和非线性大系统的部分联结稳定性,并得到其关联参数稳定域,所得结果形式简洁,便于应用。     

Age-specific response of skeletal muscle extracellular matrix to acute resistance exercise: A pilot study

The extracellular matrix (ECM) plays an essential role in the development, growth and repair of skeletal muscles and serves to transmit contractile force. However, its regulation is poorly understood. This study investigates the age-specificity of the effects of acute resistance exercise on ECM gene expression. To this purpose, five young (YM, 23.8?±?2.2 yrs.) and 5 elderly (EM, 66.8?±?4.1 yrs.) men performed one session of unilateral leg press and leg extension exercises. Six hours post-exercise, biopsies were taken from the vastus lateralis muscles of both legs. A PCR array was used to profile the expression of 84 ECM-related genes, of which 6 were validated by qPCR. The PCR array found 9 and 4 ECM-associated genes to be selectively altered (>1.5-fold change) in YM or EM only. Four further genes were upregulated in YM but downregulated in EM. Of the 6 genes validated on individual samples MMP9 expression increased in YM (9.7-fold) and decreased (0.2-fold) in EM. MMP15 was downregulated in EM only (0.6-fold). A significant correlation between leg extension 1 RM and changes in COL7A1 expression (ρ?=?0.71) suggests a potential influence of fitness levels. In conclusion, acute resistance exercise affects ECM gene expression at least partly in an age-specific manner. The altered expression of genes encoding matrix metalloproteinases (MMP3, MMP9, MMP15) highlights the role of remodelling processes in the response to an acute bout of resistance exercise. Larger studies are required to verify the age-associated differences in gene expression profiles and establish their functional implications.     

Hard to teach: inclusive pedagogy in social science research methods education

Amidst major new initiatives in research that are beginning to address the pedagogic dimension of building capacity in social science research methods, this paper makes the first move to apply the lens of inclusive pedagogy to research methods pedagogy. The paper explores the ways in which learning social science research methods is hard and may be anxiety-provoking, which has sometimes led to a deficit discourse in which learners are positioned as ill-prepared and fearful. Learners can then be blamed for being hard to teach when an inclusive pedagogical lens would support a more asset-based discourse. Nonetheless, the authors argue that without traditional deficit-based solutions of the remedial class, special needs label or special teacher within the methods learning environment, methods teachers have developed their own responses. These pedagogic responses, elicited from the authors’ research using methods of expert interviews, focus groups and video-stimulated dialogue, address challenges associated with the learner, the learning material and the teacher’s context. The paper differentiates between practical solution-focused strategies and more holistic approaches. The authors illustrate how methods teachers reach out to diverse learners and they conclude that data and standpoints are used in inclusive teaching to make connections and to support learning.     

俄语语篇句际问两种词法连接手段的对比

句际间的词法连接手段是指在连贯话语当中句际间使用某种词类作为连接手段。连接词是最为常见的句际连接手段之一,其基本功能是实现语言单位之间的连接。时间、地点是任何物质存在的形式,反映在连贯话语中,形成了连贯话语的时空统,在这个时空统中单个的独立句子在时间、地点关系上被紧紧地连接在一起,疏状副词也因此具有了连接功能。科学篇章和文学作品中句际间连接手段使用的差别很大。这种差别,是由两者的语体特点所决定的,总的语体特点决定了各种语言手段的使用。     

小学初中英语教学衔接中形成性评价的应用

小学与初中英语教学的衔接是一个难以把握的教学实践问题。在全面论述形成性评价在我国小学初中衔接阶段的应用现状的基础上,提出了教学实践中如何有针对性地把握好这一难题的原则。对于这些原则的具体运用以及应注意的问题,每一名教师应该在教学实践中予以充分注意并不断摸索。     

再认识篮球比赛节奏

篮球比赛节奏不能狭义地认为 :只是比赛速度的控制和战术形式的变更 ,而应该从整个比赛的思想作风、心理调节、攻防技术及战术应变等多方位加以深刻地剖析 ,使我们对篮球比赛节奏有深层次的认识 ,从而达到更好的研究篮球技战术的更新与发展     

论话语联系语在读者与作者交互中的作用

阅读的本质不是对字符的简单释义,而是读者与作者交流与沟通的过程。为了促进与读者的互动交流,作者常使用话语联系语等语言手段来引导读者正确理解自己寓于文章中的意图;读者也可凭借自己对话语联系语的功能认知就作者的信息做出相应的反应,不断与作者进行意义磋商,以获得更多可理解的语言输入,促进外语习得。