生态港口评价指标体系的构建—基于R聚类、变异系数与专家经验的分析

从"生态文明"与"绿色经济"的角度,海选与生态港口相关的评价指标,在细化分析生态港口压力因素、承压因素和状态因素的基础上,构建了包含准则层、因素层和指标层的生态港口评价指标体系;遵循目的性、可行性和可观测性原则,利用R聚类-变异系数分析,定性与定量相结合地筛选了评价指标,并融入了专家的主观分析,完善了生态港口评价指标体系。结果表明,筛选出的21.30%的指标可反映93.91%的原始信息,证明了生态港口评价指标体系的合理性。     

基于变易理论的体育教学内容分析及其设计策略

摘要：教学内容是体育教学过程中最具核心意义的要素之一。为进一步拓展、深化对体育教学内容及其特性的学理认识,科学有效地选择、设计和呈现体育教学内容,促进学生的有效学习,切实提高体育课的教学品质,主要运用文献资料法和逻辑分析法,在概述变易理论的基础上,重点发掘、阐释体育教学内容的变易特性及其主要类型,并提出基于变易特性的若干体育教学内容设计策略。研究结果表明：1）变易理论的深刻洞见之于体育教学内容的学理认知及其教学设计具有十分重要的认识论和方法论意义;2）体育教学内容具有一般和专项二重属性,并在其关键特征上、学生对其理解上、体育教师对其认识处理上呈现出3种重要的变易,具体又表现为预设的、实践的以及体验到的3种类型;3）重建体育教学内容观,重新审视、认识学生及其学习,选择、确定最有价值、最适切的体育教学内容及其关键特征,设计适切的变易图式,科学处理体育教学内容是帮助学生理解、掌握体育教学内容,进而促进学生更有效地学习的关键所在。     

徐坤小说语言变异的语境分析

徐坤小说语言的变异给文学语言注入了活力,扩大了文学语言的张力.这种文学语言的变异一方面受20世纪90年代社会文化语境的影响,另一方面也是因作家自身的女性、知识分子的双重身份.对徐坤小说语言的"文本外语境"和"文本语境"的解读,可以探析其小说语言变异产生的独特文学意蕴.     

Temporal specificity of training: intra-day effects on biochemical responses and Olympic-Weightlifting performances

The aim of this study was to investigate the performance of an Olympic-Weightlifting session training at three times of the day on the performance related to biochemical responses. Nine weightlifters (21 ± 0.5 years) performed, in randomised order, on three Olympic-Weightlifting training (snatch, clean and jerk) sessions (08:00 a.m., 02:00 p. m., 06:00 p. m.). Blood samples were collected: before, 3 min and 48 h after each training session. Haematological parameters and markers of muscle injury were assessed. Resting oral temperature and rating of perceived exertion (RPE) were also assessed during each session. ANOVA showed that the performance was better (P < 0.001) at 02:00 p. m. with a less RPE (P < 0.01) compared to the morning and the evening sessions while there was higher (P < 0.05) oral temperature at 06:00 p. m. versus 08:00 a.m. and 02:00 p. m. Muscle damage changed immediately (without significant effect after 48 h) after the training sessions with lower values ??in the evening compared to the morning. In conclusion, the afternoon training is more effective than morning or evening sessions for weightlifters. Therefore, coaches and weightlifters should be advised to schedule their training session in the afternoon hour.     

校园空气负氧离子浓度分布与空气质量评价

空气负氧离子浓度水平不仅反映了空气质量,还直接影响人们的舒适程度和健康状况。研究武夷学院空气负氧离子浓度含量发现,其受人类活动力度、海拔高度、空气流通状况、动态水体和植被分布等综合因素影响,并具有明显的气象变化和日变化特征。负氧离子浓度含量排序为:暴雨天>小雨天>雨后阴天>晴天;一日中上午>傍晚>中午。测量结果表明该校园整体空气质量等级达到四级或者三级,空气清新,有利于师生健康。     

浅谈莫言《生死疲劳》的变异修辞

莫言是中国首位诺贝尔文学奖的获得者,其小说在语言方面取得了令人瞩目的成就。《生死疲劳》是莫言的经典作品,其语言汪洋恣肆,千变万化,尤其是变异修辞手法的运用,不仅数目多,而且类型广。     

语言模因变异与科技英语词义推导刍议

科技英语词义灵活多变、富于变异的特性给科技英语词义推导带来了困难。模因论认为语言模因本身就是一种变异,并对语言模因变异的根源和规律进行了描述,可用于解释科技英语词义变异的现象。将国内外学者对语言模因变异研究的成果与科技英语词义自身变异的现象结合起来,梳理出了科技英语词义变异的六种模式及推导方法,可用于指导科技英语词汇的学习与翻译。     

网络语言常见语法现象及其规范问题

网络语言在语法上的突出特点主要表现在副词超常使用、词的重叠、词类转换、语码混用、特殊句式、省略简约等几个方面。在网络语言的语法规范问题上,应加强对网络语法变异现象的搜集和整理工作,限定其使用范围,肯定并推广网络语言中有益的语法形式,纠正和抵制其中无益的语法变异现象,尽可能地减少其对语言规范的破坏。     

模因论视角下手机短信语言变异取向分析

手机短信语言在使用过程中产生了显著的变异,并形成口语化、简缩化、修辞化三大变异取向。这是语言模因之间竞争的结果,强势模因和强势模因复合体的成功复制与传播则是这三大变异取向形成的主要推动力。     

Biological variations of ADAMTS13 and von Willebrand factor in human adults

Background:

The ultra-large von Willebrand factor (vWF) multimers are very active and must be degraded by ADAMTS13 for optimal activity. A severe functional deficiency of ADAMTS13 has been associated with thrombotic thrombocytopenic purpura. The correct interpretation of patient vWF and ADAMTS13 plasma levels requires an understanding of the biological variation associated with these analytes. In the present paper, we aimed to determine the biological variation of ADAMTS13 and vWF in human adults.

Materials and methods:

Blood samples were collected weekly from 19 healthy subjects for 5 consecutive weeks. vWF activity and antigenicity were determined using aggregometric and immunoturbidimetric methods. ADAMTS13 antigenicity and activity were determined by ELISA.

Results:

The within-subject biological variations for vWF activity and antigenicity were 8.06% and 14.37%, respectively, while the between-subject biological variations were 18.5% and 22.59%, respectively. The index of individuality for vWF activity was 0.44, while vWF antigenicity was 0.64. Similarly, ADAMTS13 activity and antigenicity within-subject biological variations were 12.73% and 9.75%, respectively, while between-subject biological variations were 9.63% and 6.28%, respectively. The ADAMTS13 indexes of individuality were 1.32 and 1.55, respectively.

Conclusion:

We report high biological variation and individuality in vWF antigenicity and activity levels. However, ADAMTS13 antigenicity and activity displayed high biological variation, but low individuality. Thus, population-based reference intervals may be useful for monitoring ADAMTS13 antigenicity and activity, but not for vWF, which displays high individuality. These findings should be considered when determining the reference interval and other clinical variables associated with ADAMTS13 and vWF levels.