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1.
《Higher Education Policy》2001,14(3):261-269
This study reports the findings of a survey of the perceptions of faculty and students regarding the effectiveness of the summer program at KFUPM. In this study the objective was to identify the concerns of faculty and students about the summer program and suggest possible policies for development. Information was collected using a questionnaire. Students were given 200 questionnaires to fill out and 160 were completed and returned (80% response rate). Faculty on the other hand, were given 70 questionnaires to fill out and 35 were completed and returned (50% response rate). From the study, it was concluded that the summer program should not offer courses that require a long time to develop skills. It should only be conducted as a supplementary semester to help those, unable to complete their course work successfully during the regular semesters, or improve their skill, which indirectly affect the overall completion of their degrees. The study revealed that there were some concerns about the summer program that need to be addressed by the university administration. It also highlighted the need for the introduction of relevant policy measures for the efficient operation and development of the summer program at the university. 相似文献
2.
钱塘江吹填土的沉淀特性研究 总被引：7，自引：0，他引：7
钱塘江标准塘Ⅴ期的吹填土的颗粒分析曲线和沉淀试验显示：对粉土来讲，干密度、沉积的快慢与含水量没有明显关系；级配较好的土，沉积后的干密度较大；土的自重在欠固结土中发挥着重要作用。 相似文献
3.
Fátima Oropesa Carmen Moreno Pedro Pérez Victoria Muñoz-Tinoco 《Cultura y Educación》2013,25(1):159-183
AbstractIn order to differentiate between types of routine leisure activities and to evaluate their corresponding protection/risk value in adolescent development, we performed a study with a sample of 218 adolescents between the ages of 12 and 14 years by asking them to fill out a grid that analysed their daily routines. The results are presented here. They were required to account for each hour of a weekday by specifying whether they were awake or asleep, the place they were at, who they were with, and what type of activity they were engaged in. A group of these adolescents (N = 59) were considered to be at risk (they formed part of a social integration and marginalization prevention program), whereas the rest (comparison group) were their classmates. A multiple correspondence analysis was performed, revealing the existence of four adolescent typologies according to daily routines. The analysis showed that the routines incorporating a greater variety of leisure activities, as well as more creative, organized, and supervised activities, were associated with adolescents who possessed a more normative development, whereas more monotonous, unstructured and unsupervised activities tended to be characteristic of adolescent development at risk. 相似文献
4.
The reduction in time between the discovery of new knowledge and its application to fill human needs has demanded rapid sophistication of engineering and science graduates employed by industry. In a very short time an integrated work-graduate study program provides these graduates with education in depth, an introduction to industry and a realistic base upon which to make a career decision. Industry's need is graduatestudy opportunity for its employees; its contribution is the integrated work-graduate study program. 相似文献
5.
Piled embankments are widely used in highway and railway engineering due to their economy and efficiency in overcoming several issues encountered in constructing embankments over weak soils. Soil arching, caused by the pile-subsoil relative displacement (Δs), plays an important role in reducing the embankment load falling on weak soil, however, the fundamental characteristics (e.g., formation and features) of soil arching remain poorly understood. In this study, a series of discrete element method (DEM) modellings are performed to study the formation and features of soil arching with the variation of Δs in piled embankments with or without geosynthetic reinforcement. Firstly, calibration for the modelling parameters is carried out by comparing the DEM results with the experimental data obtained from the existing literature. Secondly, the analysis of the macroand micro-behaviours is performed in detail. Finally, a parametric study is conducted in an effort to identify the influences of three key factors on soil arching: the friction coefficient of the embankment fill (f), the embankment height (h), and the pile clear spacing (s?a). Numerical results indicate that Δs is a key factor governing the formation and features of soil arching in embankments. To be specific, soil arching gradually evolves from two inclined shear planes at a small Δs to a hemispherical arch at a relatively large Δs. Then, with a continuous increase in Δs, the soil arching height gradually increases and finally approaches a constant value of 0.8(s?a) (i.e., the maximum soil arching height). For a given case, the higher the soil arching height, the greater the degree of soil arching effect. The parametric study shows that the friction coefficient of the embankment fill has a negligible influence on the formation and features of soil arching. However, embankment height is a key factor governing the formation and features of soil arching. In addition, pile clear spacing has a significant effect on the formation of soil arching, but not on its features. 相似文献
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Rebecca L. Stotzer Keith Fujikawa Jill Sur Pam Arnsberger 《Journal of Teaching in Social Work》2013,33(4-5):357-368
The use of technology to facilitate education and the provision of an entire higher education degree has exploded in the last two decades. Social work educators have been a part of that trend and have started to utilize distance education (DE) technologies. There is a growing literature regarding the efficacy of DE instruction in social work, and scholars are actively developing best practices. However, there is little research in general to support the cost of DE, no cost studies in social work, and none comparing costs of DE delivery to costs associated with a face-to-face program. This study hopes to fill this gap by providing an analysis of the direct costs of an MSW DE program in comparison to similar costs of a face-to-face program. 相似文献
10.
Cheryl R. Ellerbrock Eugenia Vomvoridi-Ivanovic Kia Sarnoff Brittany Jones Mattea Thomas 《Clearing house (Menasha, Wis.)》2013,86(4-5):119-124
In this article, the authors explain the need for clinically rich middle school STEM teacher preparation. They describe how one university and school district with an established partnership collaborated to meet this need. The result was the formation of a residency program that aims to prepare high quality middle school STEM teachers who can fill the district’s vacancies. The residency program is centered around clinical experiences where the triad—consisting of a preservice teacher, collaborating teacher, and university supervisor—is the nexus of learning. The authors share the takeaways from their experiences, highlighting the perspectives of the members of one triad. They conclude with an examination of the residency program’s effectiveness in meeting its intended aim. 相似文献
11.
开放大学建设试点的基本策略是终端制胜,也就是关于学习中心建设的命题,这是开放大学建设的重要内容,离不开系统建设和环境因素的关系问题,关系到开放大学体系建设深层次的问题,都涉及教育生态学原理。本文从教育生态位视角,分析了作为开放大学基础的电大系统的生态位先天不足,建设开放大学习中心要补什么课,以垦区学习中心为例阐述了学习中心建设要基于生态位的基本观点。 相似文献
12.
Abundance and composition of ammonia-oxidizing bacteria and archaea in different types of soil in the Yangtze River estuary 总被引：2，自引：0，他引：2
Xiao-ran Li Yi-ping Xiao Wen-wei Ren Zeng-fu Liu Jin-huan Shi Zhe-xue Quan 《Journal of Zhejiang University. Science. B》2012,13(10):769-782
Tidal flats are soil resources of great significance. Nitrification plays a central role in the nitrogen cycle and is often a critical first step in nitrogen removal from estuarine and coastal environments. We determined the abundance as well as composition of ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA) in different soils during land reclamation process. The abundance of AOA was higher than that of AOB in farm land and wild land while AOA was not detected in tidal flats using real-time polymerase chain reaction (PCR). The different abundances of AOB and AOA were negatively correlated with the salinity. The diversities of AOB and AOA were also investigated using clone libraries by amplification of amoA gene. Among AOB, nearly all sequences belonged to the Nitrosomonas lineage in the initial land reclamation process, i.e., tidal flats, while both Nitrosomonas and Nitrosospira lineages were detected in later and transition phases of land reclamation process, farm land and wild land. The ratio of the numbers of sequences of Nitrosomonas and Nitrosospira lineages was positively correlated with the salinity and the net nitrification rate. As for AOA, there was no obvious correlation with the changes in the physicochemical properties of the soil. This study suggests that AOB may be more import than AOA with respect to influencing the different land reclamation process stages. 相似文献
13.
土地复垦与生态重建 总被引：3，自引：0，他引：3
汤惠君 《衡阳师范学院学报》2004,25(3):85-88
本文在前人研究的基础上，从矿区土地复垦和生态重建内涵出发，就两者的关系及有关问题进行了探讨。文章认为土地复垦不仅是土地问题．也是环境问题；土地复垦的实质是既要恢复土地资源，又要重建生态平衡，生态重建是土地复垦的核心和目标．土地复垦和生态重建是土地和环境综合治理的系统工程；恢复生态学是土地复垦和生态重建的理论基础；地貌重塑和土壤重构是土地复垦和生态重建是的基础工程，而植被重建是关键。 相似文献
14.
Amla Salleh Syed Mohamad Syed Abdullah Zuria Mahmud Simin Ghavifekr Noriah Ishak 《Asia Pacific Education Review》2013,14(2):209-219
A study was carried out to test the effects of a 2-week structured intervention program on academically challenged students’ career development. A quasi-experimental study was designed using pre-tests, post-tests, and a control group approach to examine the effects of the intervention program. Data were collected from both the experimental and control groups. The test was carried out on eight schools in the state of Kedah in Malaysia. Eight school counselors were trained to facilitate the assignment to the experimental groups and to collect data. A total number of 335 students with low academic achievement participated in this study. This number included male (43.6 %) and female (56.4 %) students who were aged 15–16 and a half. Modes of measurement used consisted of a career planning inventory (measuring career planning skills), an academic learning motivation scale (measuring attitude toward academic learning), and an academic study skills test (measuring academic study competencies). Analysis was performed using t-tests and the multivariate analysis of variance to examine the differences in the mean scores. The results show that the sample’s career academic score improved significantly from the pre-test to the post-test. A simple regression analysis was also performed to see the effect of the intervention program on the three dependent variables, which revealed that the career intervention program has positive and significant effects on the three variables. However, further studies on the career program for academically challenged students are highly recommended to support the present study. 相似文献
15.
The purposes of this study were (1) to develop a science and technology (ST) ethics education program for prospective science teachers, (2) to examine the effect of the program on the perceptions of the participants, in terms of their ethics and education concerns, and (3) to evaluate the impact of the program design. The program utilized problem-based learning (PBL) which was performed as an iterative process during two cycles. A total of 23 and 29 prospective teachers in each cycle performed team activities. A PBL-based ST ethics education program for the science classroom setting was effective in enhancing participants’ perceptions of ethics and education in ST. These perceptions motivated prospective science teachers to develop and implement ST ethics education in their future classrooms. The change in the prospective teachers’ perceptions of ethical issues and the need for ethics education was greater when the topic was controversial. 相似文献
16.
焦作市煤矿塌陷地生物复垦技术研究 总被引：3，自引：0，他引：3
焦作市煤矿区是一个有着近百年历史的老矿区。长期以来 ,地下采煤引起的大面积土地塌陷以及矸石山压占土地对本地区土地资源造成较大的破坏。为了改善矿区环境 ,针对焦作矿区的特殊情况 ,笔者提出以下几种生物复垦措施对复垦地土壤进行改良 :酸碱中和法、绿肥法、施用化肥和农家肥、微生物法。试验结果表明 :生物复垦技术是改善新土壤层的养分状况 ,增加有机质和保肥能力的最有效方式。采用生物复垦措施后 ,新土壤层的土壤结构明显地得到改善 ,土壤容重明显降低 ,理化特性得到改善 ;试种的作物产量与工程复垦后土壤的相比明显增加 ,基本接近普通农田的水平 相似文献
17.
王春辉 《伊犁师范学院学报》2010,(2):30-35
新疆屯垦制度管理事关屯垦绩效,关乎国家整体战略利益。因此,对以汉、唐、清等时期为代表的中国历代屯垦管理制度的发展过程研究后,认为保障西北边疆安全是屯垦制度完善的外在因素,国家的实力与战略重心是屯垦管理制度的内在动力,多种形式的屯垦是完善屯垦管理的重要途径。这些屯垦管理制度动力机制的总结,既丰富了新疆屯垦史研究的内容,又为新疆兵团管理制度的改革与发展提供历史的借鉴。 相似文献
18.
Research has established that racially isolated schools with high concentrations of low-income students disproportionately struggle to recruit and retain highly effective teachers, limiting disadvantaged students’ exposure to high-quality instruction and driving institutional and community instability. This study estimates the effect of selective retention bonuses (SRB) for highly effective teachers on low-performing, high poverty schools’ ability to elevate student performance by increasing access to effective instruction. The theory of action behind the bonus program is simple: SRBs result in greater numbers of highly effective teachers at participating schools, who subsequently drive larger student gains than the teachers who would otherwise fill their positions. To examine whether students in high poverty schools benefit from retention of highly effective teachers, we use differences in eligibility for schools to offer bonuses and the discrete timing of the program in a matched sample, difference-in-differences framework. Results indicate that schools who offered SRBs saw greater test score gains in subsequent years, especially on state reading exams. 相似文献
19.
Numerous studies have been conducted about criminal justice internship programs in western countries, but few have addressed similar types of programs conducted in Eastern countries. To fill this gap in the literature, this study preliminarily analyzed the factors affecting satisfaction with the police practicum credit program in South Korea using data collected from 208 participating students and police officers. The results showed that participants were generally satisfied with the program but had different perceptions about each program component. Focusing on the crucial elements affecting overall satisfaction with the program, the study examined the following factors: the curriculum; the period and practice time; the proportion of on-site practice; teaching material; credits; and police officers’ preparedness, attitudes and information offerings. Our results suggest that the curriculum and preparedness of the officers in charge were significant factors affecting the participants’ satisfaction. Based on the findings, implications for policy recommendations are discussed. 相似文献
20.
《Journal of Experimental Education》2012,80(4):188-191
This study was designed to determine the minimum number of points required for continuous scaled variables before the Pearson product moment correlation coefficient (PPMCC) ceases to be an accurate estimate of their original correlation coefficient. The study was performed on samples from normal, exponential, and uniform distributions by using Monte Carlo techniques. After the PPMCC was determined for each sample, multiple grouping procedures were applied and the PPMCCs were recalculated to determine the effect of scaling on the correlation coefficient. The results showed that the PPMCC obtained by using transformed discrete ordinal-level variables tended to underestimate the true parameter. The minimum number required for precise PPMCC is five and the use of PPMCC with five or more points is recommended. 相似文献