x~n+1在有理数域上的因式分解

从特殊情况研究多项式f(x)=xn+1在有理数域上的因式分解.对于正整数,设H(n)是n的大于1的奇约数的个数.本文用初等数论和近世代数的知识证明了:多项式xn+1在有理数域上可分解为H(n)+1个不可约因式的乘积,即D(f)=H(n)+1.     

Comparing measures of general and abdominal adiposity as predictors of blood pressure in college students

Objective: To compare anthropometric measures of body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR), and sagittal abdominal diameter (SAD) as predictors of blood pressure in college students. Participants: Students (N = 116) were recruited from November 2012 to May 2014 at an urban university and rural community colleges. Methods: Students underwent a brief physical examination during which anthropometric measures were obtained and blood pressure was measured. Covariates were measured using self-reported questionnaires. Hierarchical multiple linear regressions were used for the data analysis. Results: All anthropometric measures were predictive of systolic (SBP) and diastolic blood pressure (DBP). WC was the strongest predictor of SBP (β = .582, p < .01) explaining an additional 3–4% of the variance than BMI, WHtR, or SAD. The measures were similar in predicting DBP. WC predicted SBP independent of BMI. Conclusions: Clinicians should consider using WC to assess the risk for hypertension in college students.     

Training fieldwork supervisors of social work students at a South European University: evaluation of the effectiveness of a relational psychodynamic model

This case-study adopts a mixed research methodology in order to evaluate the process and the effectiveness of a psychodynamically informed training seminar for field supervisors of undergraduate social work students, at a South European University. At the beginning of the seminar, an anonymous questionnaire gathered information on the supervisors’ demographics, preferred supervision style and expectations from the training. The training consisted of four sessions involving analysis of (1) student process-recorded interviews with clients, (2) the relationships formed between the student, the supervisor and the field practice manager, (3) brief virtual scenarios (vignettes) of field practice problems and (4) a videotaped supervision session. At the end of the training process, a follow-up questionnaire researched the satisfaction of supervisors with the training, their confidence to conduct supervision, and their satisfaction with the instructor's teaching. Overall, the training has been satisfactory for the trainees and increased their competence to supervise.     

双液注浆锚管加固在渗水软弱围岩浅埋偏压隧道中的应用

通过乌坑坝隧道北京端左线冲沟地段的施工实例，介绍渗水软弱围岩浅埋偏压隧道地表双液注浆锚管加固的施工方法，并对加固效果及其优缺点进行分析．     

Reactions of students to different settings of field experience

The study assessed Israeli students’ emotional–experiential reaction and attitude to different client populations, following a week-long experience in one of five social services settings. The study provides preliminary findings regarding the implications of first year students’ experience on their emphatic skills, a subject that generally has not received adequate scholarly attention. Using a purpose-built, self-administered questionnaire, we found students’ emotional–experiential response to their experience differed by the setting in which they were placed, being lowest in the Bedouin oriented services, intermediate among those placed in juvenile correction services, and highest in mental health, adult and child disability services. Responses were independent of all other explanatory variables, including sex, cognitive ability, previous training experience and perceptual shifts concerning the population served. We discuss possible reasons for these differences.

     

贯彻《通用规范汉字表》需要澄清误解——以朱大可《汉字革命和文化断裂》为例

教育部、国家语委《通用规范汉字表》是中国今后一个时期在“通用”领域使用汉字必须遵守的规范。贯彻该《字表》必须澄清前一时期文化界对简化字的种种误解。朱大可所持简化字是“字母共产主义化”、“毛体字”，造成“文化断裂”的观点，以及他对某些字形的解说，对推行规范汉字有阻力作用。建议文化名人了解语言文字知识和汉字改革历史。     

新世纪中国生态批评与生态美学的发展及其问题域

20世纪90年代开始,生态美学、生态文艺学、生态批评的研究迅速成为中国文论研究中广受关注的前沿和热点问题之一。在经过了萌发和草创阶段之后,目前已进入了学理的探索、丰富和深化阶段。尽管中国生态批评及其理论形态的生态文艺学、生态美学目前尚未完全发展成熟,但理论上的尝试和建设及争鸣已开启了学科建构的新视角、新观点,极大地推动了学科的发展,中国的生态批评和生态美学研究已初见规模,并必将在新世纪中国文论建设中承担起自己的责任。     

西部农村留守妇女家庭压力及其影响因素分析

本文采用西部地区24个行政村千余名农村妇女的调查数据,探讨了农村留守妇女的家庭压力及影响因素。研究发现,留守确实增强了农村妇女的家庭压力,留守妇女承受的精神压力、经济压力、抚养赡养压力都要大于非留守妇女;留守妇女的年龄、家庭特征、当初择偶时对般配的重视程度、夫妻异质性、与外出丈夫的沟通状况、社会支持等因素对其家庭压力有不同程度的影响。提出建立夫妻间良好的沟通机制和构建社会支持网络的建议。     

巴洛克文学的多元文化价值及其影响场域

巴洛克文学曾受到文学批评史的不公正对待已是不争的事实。可是文学史的发展轨迹最终表明巴洛克文学具有多元文化价值、强大的生命力和不容忽视的影响场域。巴洛克文学的多元文化价值表现在：其一,生动再现17世纪欧洲各国的社会生活现实;其二,体现多元化的审美文化追求。巴洛克文学的影响场域表现为后世作家对其思想和艺术手法的借鉴、移植和化用,虽然亦存在着难以融合的断裂感和新异感。另外,这种影响还体现为一种追新逐异、兼收并蓄的＂巴洛克精神＂的广泛渗透。     

基于单片机AT89C51的全自动变频恒压供水系统

介绍了一种新型的变频恒压供水系统.该系统根据供水管网的用水情况,调整水泵投入台数及转速,实行全自动恒压供水,达到高效节能的目的;其水泵用变频器软启动,对电网无冲击,能延长水泵的使用寿命.