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1.
《BMJ (Clinical research ed.)》1977,1(6055):213-216
The fifteenth quarterly clinicopathological conference was held at the Royal College of Physicians of London on 29 July 1976. The conference was chaired by Professor Sheila Sherlock (1). She began by introducing Professor Jean-Pierre Benhamou (2), professor of gastroenterology at the Beaujon-Clichy Hospital, University of Paris, who was to open the discussion of the case. Professor Sherlock emphasised that this case had no great dénouement but was more a talking point for various aspects of hepatology, a review of the state of the art. Dr James Scott (3) presented the case, and Dr R Dick (4) described the radiological findings. 相似文献
2.
This essay is a contribution to the historiography of Lennart von Post and the early development of quantitative pollen analysis. Based on von Post’s own publications and source material from the archives of Stockholm University College, where he was appointed professor in 1929, the essay offers four points on von Post’s scientific identity and the collective work through which quantitative pollen analysis, or “pollen statistics”, came into being. The four points are, first, that von Post made his career as a geologist; second, that he framed pollen analysis as a means to tackle Quaternary geological issues; third, that his work benefitted from collective work, both in the field and in the laboratory; and fourth, that quantitative pollen analysis was not accepted without criticism, taking some years to break through beyond the Geological Survey, where von Post worked before he became professor. 相似文献
3.
Women do not synchronize their menstrual cycles 总被引:4,自引:0,他引:4
It is widely believed that women who live together or who are close friends synchronize their menstrual cycles. We reexamined
this phenomenon in two ways. First, we collected data on menstrual cycles from 186 Chinese women living in dorms for over
a year. We found that women living in groups did not synchronize their cycles. Second, we reviewed the first study reporting
menstrual synchrony. We found that group synchrony in that study was at the level of chance. We then show that cycle variability
produces convergences and subsequent divergences of cycle onsets and may explain perceptions of synchrony.
This study was supported by the Sichuan Youth Foundation of Science and Technology (Chuan Ke Ji [2001] 2) and NIH Grant No.
5R01MH065555-02. We thank Shuhuan Yang, Xia Xu, Jun Qu, Jing Zhu, Meijia Yu, & Chang Zhou for all their work in collecting
the data. Without them, this study could never have been done.
Zheng-Wei Yang is director and professor of the Morphometric Research Laboratory, North Sichuan Medical College, China. His
main research interests are in spermatogenesis, morphometry, and stereology.
Jeff Schank is associate professor of psychology at the University of California, Davis. His main research interests are in
computational and biorobotic modeling of group behavior and the development of sensorimotor behavior in animals. 相似文献
4.
Neurath H 《Biochimica et biophysica acta》2000,1477(1-2):7-15
The present autobiographical review describes my professional experiences as a graduate student in Vienna, Austria, the postdoctoral experiences at the University of London, University of Minnesota, and at Cornell University, Ithaca, NY. This was followed by a faculty appointment at Duke University where I rose through the ranks from assistant professor to professor of physical biochemistry from 1938 to 1950. This account includes both scientific and cultural episodes and anecdotes. In 1950 I moved to Seattle to become founding chairman and professor in the Department of Biochemistry as will be described elsewhere. 相似文献
5.
Jeanne Guillemin 《Human nature (Hawthorne, N.Y.)》1994,5(1):1-22
The diffusion of medical technology is largely determined by the marketplace demands supported by national and historical
contexts. Using the cases of cesarean delivery and newborn intensive care in the United States, this article presents the
argument that the interaction of four factors accounts for the rapid diffusion of untested technologies. These factors are
economic expansion in an unrestricted market, the vulnerability of the patient population, a social disposition towards emergency
medicine, and the vested interest of medical specialists.
Jeanne Guillemin is a professor of sociology at Boston College. She served on the National Institutes of Health Consensus
Task Force on Cesarean Birth and authored the section of the task force’s 1981 report on international data on cesarean rates.
She is also the coauthor, with Lynda Lytle Holmstrom, ofMixed Blessings: Intensive Care for Newborns, which analyzes the national and international development of this hospital service, as well as authoring numerous articles
on medical policy. 相似文献
6.
Somerville C 《Current biology : CB》2004,14(20):R872-R873
Chris Somerville is Director of the Carnegie Institution Department of Plant Biology and a professor of Biological Sciences at Stanford University. He grew up in the Canadian north and was educated at the University of Alberta. He was one of the early Arabidopsis enthusiasts and has used the plant to study a variety of topics in cell and molecular biology. He is currently exploring the complexities of plant cell wall biogenesis. 相似文献
7.
S. J. Baserga 《The Yale journal of biology and medicine》1980,53(3):181-190
The Yale School of Medicine began accepting women as candidates for the degree of medicine in the fall of 1916. This decision was consistent with the trend in medical education at the time. While Yale was not the first prestigious Eastern medical school to admit women, joining Johns Hopkins (1893) and the University of Pennsylvania (1914), it was not one of the last. Columbia University College of Physicians and Surgeons admitted women a year later, but Harvard Medical School held out until 1945. The years 1916--1920 saw the number of women enrolled in medical school almost double. Yale''s decision to admit women seems to have been made with little resistance from the faculty. The final decision was made through the encouragement and financial help of Henry Farnam, a professor of economics at Yale, who agreed to pay for the women''s bathrooms. His daughter, Louise, was in the first class of women. At graduation she was awarded the highest scholastic honors, the Campbell Gold Prize. From Yale she travelled to the Yale-sponsored medical school in Changsha, China, where she became the first female faculty member, a position she held for twelve years. The impressions of Ella Clay Wakeman Calhoun, the only woman to graduate in the second class of women, are presented here. Since 1916 the Yale School of Medicine has undergone extensive physical and philosophical changes, developments in which women have participated. 相似文献
8.
Dr. Maria R. Valdés 《Applied psychophysiology and biofeedback》1985,10(4):315-324
A program of stress management employing open-focus attention-training workshops was developed at Baruch College to bring the benefits of stress reduction to students. The purpose of the research reported here was to evaluate the results of the open-focus attention-training technique. Open-focus technique without biofeedback training was used for two semesters. Biofeedback training was incorporated in the third semester. In the first study, changes in grade point average (GPA), stress-related symptoms, and physiological measures were examined. The experimental subjects' stress data for this study was reported previously (Valdés, 1985). In the second study, changes in the same variables for experimental and control subjects were evaluated. Students in the control group showed decreased GPA, while those who participated in open-focus training showed a trend toward improved GPA. Stress-related symptoms associated with anxiety and management of emotional problems showed significant posttraining improvement, as did physiological measures in all of the biofeedback modalities in which the experimental subjects were specifically trained. The results support the hypothesis that the workshops were successful in reducing stress levels, and suggest that further controlled research be conducted to verify these findings, and to identify the most effective components of the training procedure.Portions of this report were presented at the Fifteenth Annual Meeting of the Biofeedback Society of America, Alburquerque, March 1984. Special thanks and acknowledgement are due to Dr. Manus Rabinowitz, professor of statistics and computer information systems; Ms. Angela Anselmo, M. S. Ed., of the Department of Compensatory Programs, and Mr. Eric Laner, a graduate assistant. Professor Rabinowitz was responsible for the study, development, and evaluation of statistical data, tests, and computer programs. Ms. Anselmo assisted in conducting the workshops. 相似文献
9.
Eduard Kellenberger 《FEMS microbiology reviews》1995,17(1-2):7-24
Abstract: The history of phage research as the origin of molecular biology is related as seen by a scientist located at that critical time in Geneva. The preponderant influence of Max Delbrück on these developments is traced as a consequence of his personal charisma. Jean Weigle, former professor of experimental physics in Geneva and later research fellow with Delbrück, acted as an important ambassador to the European groups. 相似文献
10.
The present study investigated what impact the presentation style of a classroom lecture has on memory, mind wandering, and the subjective factors of interest and motivation. We examined if having a professor lecturing live versus on video alters the learning experience of the students in the classroom. During the lectures, students were asked to report mind wandering and later complete a memory test. The lecture format was manipulated such that all the students received two lectures, one live and one a pre-recorded video. Results indicate that lecture format affected memory performance but not mind wandering, with enhanced memory in the live lectures. Additionally, students reported greater interest and motivation in the live lectures. Given that a single change to the classroom environment, professor presence, impacted memory performance, as well as motivation and interest, the present results have several key implications for technology-based integrations into higher education classrooms. 相似文献
11.
As clinical academic medical departments strive to improve the quality of their research, clinicians and scientists are forced into closer liaison. In many cases, clinical departments now have research laboratories directed by "basic scientists" but often staffed, in part at least, by doctors. To someone who has not worked in one, these laboratories may seem uncompromising and forbidding work environments. This article presents a "case report" written from the viewpoints of the doctor, the scientist, and the professor. 相似文献
12.
Yi-Chang Zhuang Jyh-Biau Chang Tyng-Yeu Liang Ce-Kuen Shieh Laurence Tianruo Yang 《Cluster computing》2006,9(3):223-236
Recently, software distributed shared memory systems have successfully provided an easy user interface to parallel user applications
on distributed systems. In order to prompt program performance, most of DSM systems usually were greedy to utilize all of
available processors in a computer network to execute user programs. However, using more processors to execute programs cannot
necessarily guarantee to obtain better program performance. The overhead of paralleling programs is increased by the addition
in the number of processors used for program execution. If the performance gain from program parallel cannot compensate for
the overhead, increasing the number of execution processors will result in performance degradation and resource waste. In
this paper, we proposed a mechanism to dynamically find a suitable system scale to optimize performance for DSM applications
according to run-time information. The experimental results show that the proposed mechanism can precisely predict the processor
number that will result in the best performance and then effectively optimize the performance of the test applications by
adapting system scale according to the predicted result.
Yi-Chang Zhuang received his B.S., M.S. and Ph.D. degrees in electrical engineering from National Cheng Kung University in 1995, 1997, and
2004. He is currently working as an engineer at Industrial Technology Research Institute in Taiwan. His research interests
include object-based storage, file systems, distributed systems, and grid computing.
Jyh-Biau Chang is currently an assistant professor at the Information Management Department of Leader University in Taiwan. He received
his B.S., M.S. and Ph.D. degrees from Electrical Engineering Department of National Cheng Kung University in 1994, 1996, and
2005. His research interest is focused on cluster and grid computing, parallel and distributed system, and operating system.
Tyng-Yeu Liang is currently an assistant professor who teaches and studies at Department of Electrical Engineering, National Kaohsiung University
of Applied Sciences in Taiwan. He received his B.S., M.S. and Ph.D. degrees from National Cheng Kung University in 1992, 1994,
and 2000. His study is interested in cluster and grid computing, image processing and multimedia.
Ce-Kuen Shieh currently is a professor at the Electrical Engineering Department of National Cheng Kung University in Taiwan. He is also
the chief of computation center at National Cheng Kung University. He received his Ph.D. degree from the Department of Electrical
Engineering of National Cheng Kung University in 1988. He was the chairman of the Electrical Engineering Department of National
Cheng Kung University from 2002 to 2005. His research interest is focused on computer network, and parallel and distributed
system.
Laurence T. Yang is a professor at the Department of Computer Science, St. Francis Xavier University, Canada. His research includes high performance
computing and networking, embedded systems, ubiquitous/pervasive computing and intelligence, and autonomic and trusted computing. 相似文献
13.
Nagy JM 《Proteomics》2008,8(13):2574-2578
The 2(nd) BSPR London Regional Meeting held at Imperial College London focused on nanoproteomics and single cell proteomics, the solutions to many of the technical challenges in proteomics and protein based molecular diagnostics. This one day meeting included presentations from leading scientists within and outside of Imperial College who share a common interest in novel solutions for the identification and characterization of proteins from a single cell. The conclusion was that nanomaterials are delivering enhanced reagents and have been tested at the proof-of-concept level, but have yet to be incorporated into routine proteomic workflows. 相似文献
14.
Dipl.‐Biol. Stephan M. Hübner 《当今生物学》2014,44(5):336-341
The discoverer of the egg‐cell: Karl Ernst von Baer Being a versatile scientist of great influence, the Baltic aristocrat Karl Ernst von Baer (1792–1876) became the originator of comparative ontogeny. During his time as professor at Königsberg University von Baer, who formerly studied medicine, developed a deep interest in processes of recapitulation during embryonic growth and discovered the spinal cord and the mammalian egg‐cell. After retirement he became one of the most prominent opponents of Charles Darwin. Von Baer established several scientific laws, societies and journals. 相似文献
15.
I. E. Vinogradova 《Hydrobiologia》1986,141(1-2):7-10
This paper briefly describes the activities of zoology professor N. Yu Zograf. He founded the Hydrobiological Station on Lake
Glubokoe, participated in the organization of the Polytechnical Museum in Moscow and wrote one of the first text-books on
zoology in Russia. 相似文献
16.
Carleton HA 《The Yale journal of biology and medicine》2011,84(2):83-89
Dr. Dorothy Horstmann, epidemiologist, virologist, clinician, and educator, was the first woman appointed as a professor at the Yale School of Medicine. Horstmann made significant contributions to the fields of public health and virology, her most notable being the demonstration that poliovirus reached the central nervous system via the bloodstream, upsetting conventional wisdom and paving the way for polio vaccines. In 1961, she was appointed a professor at Yale School of Medicine, and in 1969, she became the first woman at Yale to receive an endowed chair, which was named in honor of her mentor, Dr. John Rodman Paul. In this review, the major scientific contributions of Dr. Dorothy Horstmann will be highlighted from her more than 50-year tenure at Yale School of Medicine. 相似文献
17.
Yuan J 《The Journal of cell biology》2007,179(2):174-175
An interest in neurodegenerative diseases drove Junying Yuan to study cell death as a graduate student at Harvard University. Now a full professor at the hallowed institute, Yuan is moved by the same interest in a new direction--the removal of misfolded proteins. 相似文献
18.
Daniel J. Klionsky 《Autophagy》2017,13(1):1-2
Edwin M. Southern is a professor emeritus at the University of Oxford. He is perhaps best known for development of the “Southern blot” (Dr. Southern was at the University of Edinburgh when he wrote his landmark paper). The Southern blot provided a scientific breakthrough by allowing scientists to detect a particular DNA sequence without first purifying it from the rest of the genome; the basic method involves the transfer of the DNA to a membrane, followed by detection with a specific probe. Although few people perform Southern blots as originally carried out by Southern, due in part to the more recent technique of the polymerase chain reaction, the basic concept continues to play an important role in molecular biology. 相似文献
19.
Thijs J. G. Ettema Ann‐Christin Lindås Karin Hjort Andrzej B. Poplawski Henrik Kaessmann Dennis W. Grogan Zvi Kelman Anders F. Andersson Erik A. Pelve Magnus Lundgren Staffan G. Svärd 《Molecular microbiology》2014,92(5):903-909
On 19 January 2014 Rolf (‘Roffe’) Bernander passed away unexpectedly. Rolf was a dedicated scientist; his research aimed at unravelling the cell biology of the archaeal domain of life, especially cell cycle‐related questions, but he also made important contributions in other areas of microbiology. Rolf had a professor position in the Molecular Evolution programme at Uppsala University, Sweden for about 8 years, and in January 2013 he became chair professor at the Department of Molecular Biosciences, The Wenner‐Gren Institute at Stockholm University in Sweden. Rolf was an exceptional colleague and will be deeply missed by his family and friends, and the colleagues and co‐workers that he leaves behind in the scientific community. He will be remembered for his endless enthusiasm for science, his analytical mind, and his quirky sense of humour. 相似文献
20.
Summary Using deviations of the cumulative height growth due to fertilization treatments from the linear finite difference curve of untreated red pine trees in plantations, it was noted that: 1) large-sized trees responded in height growth to fertilization in the year following treatment while the medium and small trees took two years to respond; 2) medium-size trees responded to fertilization similar to large trees, but to a lesser magnitude; and 3) small trees are further suppressed by fertilization due to growth responses in the large medium trees.Contribution of the Silviculture Department, State University College of Forestry at Syracuse University, Syracuse, New York 13210.The authors are, respectively, Professor of Silviculture, Tokyo University of Agriculture and Technology and Visiting Professor of Silviculture, State University College of Forestry at Syracuse University, 1966–67; Forester, Continental Can Co., Augusta Division, Georgia; Professor of Silviculture, State University College of Forestry at Syracuse University. 相似文献