首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
The dynamics of the Sun-Earth-Moon system is discussed with special attention to the effects of Sun’s perturbations on the Moon’s orbit around the Earth. Important secular effects are the regression of the nodes, the advance of the perigee and the increase in the Moon’s mean longitude. We discuss the relationship of the first with the occurrence of eclipses, the second with the fluctuations in the moon’s synodic period, and the third with the slowing down of the Earth’s rotation due to tidal friction. The Sun-Earth-Moon system is compared with other triple celestial systems with regard to the intensity of tidal effects. S M Alladin is a retired professor of Astronomy, Osmania University, Hyderabad. He specialized in dynamical astronomy and did research on the dynamics of colliding and merging galaxies. He is interested in the interaction between religion and science. G M Ballabh is a retired professor of Astronomy, Osmania University, Hyderabad. His field of research includes dynamical astronomy and positional astronomy. At present he is the Chairman of the Standing Advisory Committee for the Positional Astronomy Centre, Kolkata  相似文献   

2.
X-ray astronomy has benefited enormously with the deployment of imaging X-ray telescopes in space, leading to a veritable revolution. Such telescopes require distortion free focusing of X-rays and the use of position sensitive X-ray detectors. In this article I shall describe the importance of X-ray imaging, the optical principles behind the creation of images and the instruments based on these principles. The various techniques used to fabricate such X-ray telescopes are described briefly. The many types of detectors used in X-ray astronomy will be described in the second part of this article in a subsequent issue ofResonance. Kulinder Pal Singh is in the Department of Astronomy and Astrophysics of the Tata Institute of Fundamental Research, Mumbai. His primary fields of research are X-ray studies of hot plasmas in stars, supernova remnants, galaxies, intergalactic medium in clusters of galaxies, active galactic nuclei, cataclysmic variables and X-ray binaries. He is leading the development of a soft X-ray imaging telescope for the ASTROSAT mission to be launched by India in 2007–2008.  相似文献   

3.
The excellent X-ray images produced by X-ray telescopes require the use of detectors with imaging capability at the focal plane of the telescopes. In this concluding part of the article on experimental techniques in X-ray astronomy, I describe many X-ray detectors that have been used over the years. These can broadly be classified into two physical types: non-dispersive and dispersive. Traditionally the simple non-dispersive types have been used extensively in X-ray astronomy. The advancement of solid state technologies, cryogenics, and the quality of X-ray imaging has led to many new detectors of both types. Both the traditional and the new types of detectors are described briefly here with emphasis on principles and some technical details. Kulinder Pal Singh is in the Department of Astronomy and Astrophysics of the Tata Institute of Fundamental Research, Mumbai. His primary fields of research are X-ray studies of hot plasmas in stars, supernova remnants, galaxies, intergalactic medium in clusters of galaxies, active galactic nuclei, cataclysmic variables and X-ray binaries. He is leading the development of a soft X-ray imaging telescope for the ASTROSAT mission to be launched by India in 2007–2008. Part 1. Imaging Telescopes,Resonance, Vol. 10, No. 5, pp. 15–23, 2005.  相似文献   

4.
This study involved an analysis of faculty trust in a large southwestern institution. After reviewing the literature, we identified a valid and reliable instrument, the Higher Education Faculty Trust Inventory, to measure higher education faculty trust in administrators, colleagues, and students. We then used this instrument to gauge various aspects of faculty trust, and we found significant trust differences among professors of varying academic ranks (i.e., adjunct, assistant, associate, and full professor). We found, however, no significant trust differences in regard to race. Finally, we discuss the findings within a context of implications for future research and practice in higher education. Page A. Smith received his B.S. in Education from Wright State University, M.S. in Educational Administration from the University of Dayton, M.A. in Educational Administration from The Ohio State University and his Ph.D. in Educational Policy and Leadership from The Ohio State University. He is an Associate Professor at the University of Texas at San Antonio. His research pursuits include organizational climate and health, institutional trust, workplace aggression and bullying, and leadership development. Alan R. Shoho received his B.S. in Electrical Engineering from California State University at Fullerton, M.Ed. in Secondary Education from the University of Hawaii at Manoa, and his Ed.D. in Secondary Education from Arizona State University. He is an Associate Professor at the University of Texas at San Antonio. His research interests include aspiring principals, high school reform, and organizational trust.  相似文献   

5.
Using data from the College Student Experience Questionnaire research program between 1998 and 2004, this study examined the effects of student engagement in inquiry-oriented activities on a range of self-reported college outcomes. The results indicate that (1) engaging in inquiry-oriented activities has significant and positive effects on a global measure of gains; (2) engagement has positive effects on some college outcomes but negative effects on others; (3) the effects of inquiry-oriented activities are conditional, with some students benefiting more than others. This study reveals the complexity of the influences of inquiry-oriented activities on college students and points to implications for institutional policies and programs that may be effective in fostering desired college outcomes. Shouping Hu  is Associate Professor of Higher Education at Florida State University. He received his M.S. degree in Economics and Ph.D. in Higher Education from Indiana University. His research and scholarship focuses on college access and success, student engagement, and higher education finance. His contact information is 113 Stone Building, Florida State University, Tallahassee, FL 32306. George D. Kuh  is Chancellor’s Professor of Higher Education and Director of the Center for Postsecondary Research at Indiana University Bloomington. He received his Ph.D. degree from the University of Iowa. His research focuses on the quality of undergraduate education. Shaoqing Li  is a senior research analyst in the Office of Institutional Research at Florida A&M University. She received her M.S. degree in Computer Science and Ph.D. in Instructional Systems Technology from Indiana University. Her expertise includes information technologies, learning theories, and institutional research.  相似文献   

6.
Most modern cognitive theories postulate that active executive control is the only internal source of self-regulation of learning processes. To account for incidental and other categories of unintentional learning, this study explored the hypothesis that two independent sources of internal control regulate academic learning: (a) active (or executive) and (b) dynamic (or nonexecutive). College undergraduates completed an inventory of active and dynamic learning processes. The findings supported the twosource hypothesis. Moreover, when the contribution of dynamic self-regulation was removed, the correlation between active self-regulation and learning was no longer significant. When active self-regulation was removed, the correlation between dynamic self-regulation and learning remained basically the same.Asghar Iran-Nejad received his Ph.D. in 1983 from the University of Illinois at Urbana-Champaign. He is Associate Professor of Educational Psychology at The University of Alabama. His research interests and publications include the multisource nature of learning, cognitive and affective causes of interest, and sources of self-regulation. Brad S. Chissom received his Ed.D. in 1969 from Florida State University. He is Professor and Program Chair in Educational Research at The University of Alabama. He has written in the areas of educational research methodology, measurement and statistical applications.  相似文献   

7.
Engaging undergraduate students in research activities has been advocated as an innovative strategy to improve American higher education (Boyer Commission, Reinventing undergraduate education: A blueprint for America’s research universities. The Carnegie Foundation for the Advancement of Teaching, Stony Brook, NY, 1998). This study compared the frequency of undergraduate student research experiences at different types of colleges and universities from the early 1990s through 2004. The results indicate that the frequency of student research experiences increased since 1998 at all types of institutions and that students at research universities were not more likely than their counterparts elsewhere to have such experiences. The findings were consistent across major fields. To live up to their claims, research universities must find additional ways to involve undergraduates in research with faculty members. Shouping Hu is Associate Professor of Higher Education at Florida State University. He received his M.S. degree in Economics and Ph.D. in Higher Education from Indiana University. His research and scholarship focuses on postsecondary access and persistence, college student experience, and higher education finance. George D. Kuh is Chancellor’s Professor of Higher Education and Director of the Center for Postsecondary Research at Indiana University Bloomington. He received his Ph.D. degree from the University of Iowa. His research focuses on the quality of undergraduate education. Joy Gaston Gayles is Associate Professor in Adult and Higher Education at North Carolina State University. She received her Bachelor’s degree from Shaw University, Master’s degree from Auburn University, and Ph.D. in Higher Education from The Ohio State University. Her research focuses on college student learning and development.  相似文献   

8.
In this article, the authors critically synthesize how Critical Race Theory (CRT) as an emerging field of inquiry has been used as a tool of critique and analysis in K-12 education research. The authors point out that CRT has been used as a framework for examining: persistent racial inequities in education, qualitative research methods, pedagogy and practice, the schooling experiences of marginalized students of color, and the efficacy of race-conscious education policy. The authors explore how these studies have changed the nature of education research and stress the need for further research that critically interrogates race and racism in education.Marvin Lynn is an Assistant Professor of Department of Curriculum & Instruction in University of Maryland, College Park. He completed his B.S., at DePaul University, Chicago, IL, M.A. at Teachers College, Columbia University, New York, NY and Ph.D. at University of California, Los Angeles. He has published articles in the area of Critical Race Theory and education and critical race pedagogy. He has also written a number of articles that explore the work and lives of Black male teachers.Laurence Parker is Professor in the Department of Educational Policy Studies in University of Illinois, Urbana-Champaign. He completed his B.A., at Earlham College, Richmond, IN, M.A. and Ph.D. in University of Illinois at Urbana-Champaign. His current research examines Critical Race Theory and its connection to educational research, policy and practice in the k-12 and post-secondary settings. His research also examines social justice perspectives in educational administration, leadership and policy, particularly with respect to race and social class  相似文献   

9.
During the spring semester of 1987 a mathematician and a physicist from Oberlin College went with twenty-one undergraduates to London to use the resources of England as the basis for a course with the above title. This unusual interdisciplinary course is described, with emphasis on its experimental, experiential nature and the challenges and satisfactions which it provided.Joseph L. Snider is Professor of Physics at Oberlin College. He received his undergraduate degree in physics from Amherst College in 1956 and his Ph.D. in experimental physics from Princeton University in 1961. He has taught and done research at Harvard University and at Oberlin College. His areas of interest are solar physics, astrophysics, relativity, and the history and philosophy of science. Recently he has become interested in working to improve the teaching of physics and astronomy to pre-college students.Bruce Pollack-Johnson is Assistant Professor of Mathematics at Oberlin College, where he is responsible for the operations research program. He received a B.A. in sociology with a minor in education from Brandeis University in 1975, an M.A. in mathematics from Temple University in 1979, and an M.S. and Ph.D. in operations research from the University of Pennsylvania in 1980 and 1983, respectively. He has published in the areas of human resource modeling, forecasting, educational planning, simulation, and project management, and his current research includes project scheduling and conflict resolution. He has helped develop new courses for liberal arts students on introductory computer science and educational philosophy, as well as the course described in this article, and is also Co-Director of the Lorain County Peace Education Project.  相似文献   

10.
格特·凯尔克特曼(Geert Kelchtermans)是比利时鲁汶大学(University of Leuven, KU Leuven)心理与教育科学学部教授,同时担任鲁汶大学创新、教师与学校发展中心的主任(Centre for Innovation and the Development of Teacher and School)。他还是卑尔根大学(挪威)、奥卢大学(芬兰)和林茨大学(奥地利)以及悉尼大学的客座教授。Kelchtermans教授的研究专注于个体教育专业人士(及其传记)与组织和制度背景之间的复杂互动以及定性研究方法。他的主要学术专长包括:政策实施、教师专业发展(包括入职培训和在职培训)、学校发展与教育创新、学校微观政治、教学和教育领导的情感维度以及解释性研究方法(聚焦于叙事—传记研究方法)。他在众多国际知名教师教育类期刊上发表了大量围绕上述主题的经典论文和著作章节,在教师教育研究领域做出了大量原创性学术贡献。Kelchtermans教授主持过教师教育与教育创新领域的多项课题研究,如"职前教师专业发展:入职期间的时间与关系""教师入职培训:通过参与网络进行专业发展"等...  相似文献   

11.
Multicultural education has transformed higher education both in terms of research and in terms of student experiences. Given the complexity of our institutions, the overall effects of these transformations are mixed. Building on the successes and strengths of multicultural education as it is currently incorporated in institutions and programs will involve better understanding how it is perceived, positively and negatively, by those who are experiencing it first hand. In this article we seek to contribute to this reflection through a discussion of a survey of students’ perceptions of multiculturalism in a large first-year program in a research university. Patrick Bruch is Associate Professor of Writing Studies in the College of Education and Human Development at the University of Minnesota, Twin Cities. He received a B.A. in English from Western Michigan University and a Ph.D. in English from Wayne State University. His teaching and research focus on struggles for equality within and through higher education. Jeanne L. Higbee received her B.S. in Sociology from Iowa State University and earned both her M.S. in Counseling and Guidance and Ph.D. in Educational Administration from the University of Wisconsin-Madison. She currently serves as Professor and Senior Advisor to the Center for Research on Developmental Education and Urban Literacy, College of Education and Human Development, University of Minnesota. Her research interests are related to student development and the access and retention of student populations that traditionally have been underserved in postsecondary educational institutions. Kwabena Siaka is a doctoral candidate in the Department of Educational Policy and Administration at the University of Minnesota.  相似文献   

12.
Peer review of teaching: External review of course content   总被引:1,自引:0,他引:1  
External peer review of course content is described. Content is an important component of courses that most peer review models exclude. General suggestions on the development of models are provided to assist in creating a local model. A detailed content review model developed at the author's institution is included.David J. Malik received his Ph.D. degree in Chemistry from the University of California at San Diego and both an M.S. in Applied Mathematics and a B.S. in Chemistry from California State University at Hayward. He is currently Professor and Chair of the Department of Chemistry at Indiana University-Purdue University at Indianapolis. His research interests are theoretical chemistry and chemical physics. In recent years, he has been actively developing programs in teaching evaluation and improvement and has published work in developing techniques and practices for effective departmental administration.  相似文献   

13.
Using a case study approach, the authors examine the democratic and civic engagement learning outcomes of a campus protest. The conceptual framework is built on the ideas outlined in Learning Reconsidered (Keeling 2004) and modeled in its pragmatic follow-up, Learning Reconsidered 2 (Keeling 2006). Results suggest student and campus administrator actions during a campus protest support democratic aims, student development, and digital age democracy. Recommendations for campus educators are included. This study extends previous discussion on activism’s journey from detrimental to developmental (Astin 1999; Chambers & Phelps 1993; Hamrick 1998; Hunter 1988) by mapping the learning environment through the interaction of protestor and university and by incorporating new forms of activism. J. Patrick Biddix  received his Ph.D. in Educational Leadership and Policy Studies with specialization in Higher Education from the University of Missouri–St. Louis. He is currently Assistant Professor of Higher Education and Research Methodology in the Department of Curriculum, Leadership, and Technology at Valdosta State University. His primary research interests include college student uses of technology outside the classroom, career pathways in student affairs, and research methodology. Patricia A. Somers  received her Ph.D. in Educational Administration with specialization in Higher Education from the University of New Orleans. She is currently an Associate Professor of Higher Education at the University of Texas at Austin. Her primary research interests include college access, student persistence, student development theory, and two-year colleges. Joseph L. Polman  received his Ph.D. in Learning Sciences from Northwestern University. He is currently an Associate Professor of Educational Technology in the Division of Teaching and Learning at the University of Missouri–St. Louis. His primary research interests include inquiry-based learning involving computers and the Internet as tools, viewed from a sociocultural perspective.  相似文献   

14.
Gary Ruvkun is a winner of the 2015 Breakthrough Prize in Life Sciences. He is a co-discoverer of microRNAs (with Victor Ambros, University of Massachusetts), regarded as one of the seminal discoveries of 21st century molecular biology. In addition to the Breakthrough Prize, Ruvkun and Ambros have received the Warren Triennial Prize, the Laskar Foundation Award, and numerous other awards and prizes. Professor Ruvkun obtained his PhD from Harvard University, did his postdoctoral research at MIT, and subsequently accepted a faculty position at Harvard, where he is currently Professor of Genetics. His laboratory conducts research on basic cellular processes, using the worm C. elegans as a model system.  相似文献   

15.
An analysis of 73 portfolios, prepared by University of Florida faculty as part of the Teaching Improvement Program competition, revealed tremendous variability in the quantity, quality, and coherence of the evidence presented to support claims of excellence in teaching. By analyzing portfolios prepared by faculty members representing different colleges and different types of teaching assignments, the researchers developed seven common guidelines for portfolio construction.Dorene Doerre Ross is Professor of Education and Coordinator of Elementary Teacher Education Programs at the University of Florida. She earned her doctorate from the University of Virginia. Dr. Ross conducts research in the areas of diversity and elementary teacher education. Elizabeth Bondy is Associate Professor of Education at the University of Florida. She earned her Ph.D. in Curriculum and Instruction at the University of Florida. Dr. Bondy teaches and conducts research in the area of elementary teacher education. Lynn Hartle is Assistant Professor of Education at the University of Florida. She earned her doctorate from Pennsylvania State University. Dr. Hartle conducts research in early childhood education with a particular interest in playgrounds. Linda Leonard Lamme is Professor of Education at the University of Florida. Her Ph.D. is from Syracuse University. Her areas of interest include children's literature and language arts, as well as teacher education in those fields. Rodman Webb is Professor of Education and teaches courses in educational foundations and qualitative research methods at the University of Florida. He earned a doctorate in the Sociology of Education from Rutgers University. His research interests include democratic management, institutional change, and the micro-politics of schools.  相似文献   

16.
We conducted the present study to investigate whether college students adjust their study strategies to meet the cognitive demands of testing, a metacognitive self-regulatory skill. Participants were randomly assigned to one of the two testing conditions. In one condition we told participants to study for a test that required deep-level cognitive processing and in the other to study for a test that required surface-level cognitive processing. Results suggested that college students adjust their study strategies so that they are in line with the cognitive processing demands of tests and that performance is mediated by the study strategies that are used.Margaret E. Ross is an Associate Professor of Educational Measurement and Statistics at Auburn University. She earned her Ph.D. in Educational Psychology from the University of Kansas. Her research interests include the role assessment plays in influencing student learning strategies, assessment issues and policy, and educational program evaluation. Samuel B. Green is a Professor in the Educational Psychology Department at Arizona State University. He holds a Ph.D. in Measurement and Individual Differences Psychology from the University of Georgia. His research focuses on statistical procedures. Jill Salisbury-Glennon is an Associate Professor teaching Educational Psychology courses at Auburn University. She earned her Ph.D. in Educational Psychology from Pennsylvania. Research interests include college student self-regulation, metacognition, and motivation. Nona Tollefson recently passed away. She was a Professor of Psychology and Research in Education at the University of Kansas and held a Ph.D. from Purdue University. Her research focused on student assessment  相似文献   

17.
Key voices influencing higher education are increasingly aware of engagement in effecting change. Public research universities have missions compatible with engagement, but efforts to institutionalize it may conflict with their underlying values. Using boundary expansion as the analytical framework, this study compared the institutionalization of engagement at two types of public research universities. Land-grant universities implement engagement primarily through outreach and extension in specialized units. At urban or metropolitan universities, engagement is more often a university-wide agenda, impacting teaching, research, and partnerships. The difference between the two approaches can be explained by examining institutional capacity for boundary reshaping and expansion. Lorilee R. Sandmann  is Associate Professor in the Department of Lifelong Education, Administration, and Policy at the University of Georgia. Her research focuses on major institutional change processes to promote higher education community engagement and on criteria to define and evaluate faculty engaged scholarship. She received her Ph.D. from the University of Wisconsin-Madison. David J. Weerts  is Assistant Professor, Department of Educational Policy and Administration, University of Minnesota, Minneapolis. His teaching, research and scholarly interests include state financing of higher education, university-community engagement, and alumni philanthropy and volunteerism. He received his Ph.D. from the University of Wisconsin-Madison.  相似文献   

18.
The shortage of minority faculty presence on college and university campuses has been a matter of some concern in recent years. The purpose of this article to describe one college's initiative to address this issue. The West Virginia Graduate College's Minority Faculty Fellowship Program was designed to recruit minority doctoral students who are at the dissertation stage of their program. Appointed as non-tenure track faculty members, fellows are provided with experiences that will help them acclimate to the professoriate. This article describes the program, highlights the institutional benefits, outlines the program's strengths and weaknesses, and makes recommendations for those interested in developing similar programs.John S. Gooden, Ed.D. (University of Massachusetts at Amherst), is an Assistant Professor in the Department of Educational Leadership and Counseling at Eastern Michigan University. He is a former West Virginia Graduate College Faculty Fellow. His areas of professional expertise include administrative certification, school violence, and educational technology. Paul A. Leary, Ed.D. (University of Massachusetts at Amherst), is a Professor in the Educational Leadership Department at West Virginia Graduate College. His areas of professional interest focus on educational governance, educational policy, and program evaluation. Ronald B. Childress, Ed.D. (The University of Tennessee at Knoxville), is a Professor in the Departments of Elementary Education, Secondary Education, and Educational Leadership at West Virginia Graduate College. His areas of professional expertise include curriculum planning, program evaluation, and program management.  相似文献   

19.
在远程教育以前所未有的速度发展的时代,关于什么是远程教育,远程教育与教育是怎样的关系,以及怎样管理和发展远程教育等问题仍值得我们在大踏步前进的时候进行深入反思。好在我们身边总是有很多智者,他们以睿智的眼光和丰富的经验审视着整个领域的发展。本次访谈的主角格伦维尔·鲁姆博尔就是其中的一位。鲁姆博尔在上个世纪70年代初就加盟了英国开放大学,这使得他有机会参与到远程教育的各个实践领域,积累了大量丰富的经验。因此他的研究兴趣和成果极其广泛,涉及到远程教育的基本理论体系,系统的组织、管理与评估,及远程教育经济学研究等多个方面。在您阅读鲁姆博尔教授的访谈过程时,相信您会和我们一样徜徉在远程教育的昨天、今天和明天这一历史发展的进程之中,尽情享受着智者的箴言。  相似文献   

20.
Professor Charles Wedemeyer has appropriately been called the father of American distance education; he could also be termed an uncle of the British Open University, having acted as a consultant before the University opened to students.

As William Lighty Professor of Education at the University of Wisconsin at Madison he broke the ground for much subsequent research in the field of distance education. His most familiar published work is his book Learning at the Back Door (University of Wisconsin Press, 1981).

His long and distinguished career has included the Presidency of the International Council for Distance Education (ICDE), and the award of an Honorary Doctorate from the Open University in 1975.

He has attended many ICDE World conferences over the years, and in Oslo in the summer of 1988 gave a viewpoint on distance education for the future. Professor Wedemeyer has indicated that perhaps this paper will be the last he writes in this area; “This does not indicate a lack of interest... but at 77 years... I find it difficult to keep up with the volume of reading alone that must be maintained if I want to write among the best in our burgeoning field’.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号