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In French science literature, the term dissymmetry appeared as early as in 1820, before Louis Pasteur. Pasteur, a French scientist, in his lecture ??Recherches sur la Dissymétrie Moléculaire des Produits Organiques Naturels?? in 1860 used the term dissymmetric which was translated in English as asymmetric. A methodical study of his work reveals that the choice of the word dissymmetry is ideal even in the context of present-day science. Strictly speaking, there should be no conflict between the two terms dissymmetry and asymmetry. 相似文献
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Dayalu Naik S L Suresh Hedau Anil Kumar Bahadur Renuka Saha Sudershan Kaur Amitabha Ray 《Indian journal of clinical biochemistry : IJCB》2008,23(3):250-254
The present study was undertaken to determine the significance of sex hormone binding globulin, the major and specific binding
protein for testosterone and estradiol, in breast cancer. Among breast cancer patients, lower serum levels of Sex hormone
binding globulin and higher levels of testosterone were observed. Sex hormone binding globulin showed an inverse relationship
with testosterone and total cholesterol, and a direct relation with HDL-cholesterol. By the western blot analyses, Sex hormone
binding globulin was detected in all biological samples that we examined. In the breast tumor tissue sections, immuno-staining
for Sex hormone binding globulin was confined in cell cytoplasm and 29% cases were positive, which showed no association with
the investigated prognostic markers of breast cancer such as ER and HER-2/neu over-expression. In this study, decreased circulating
levels of Sex hormone binding globulin in breast cancer patients possibly indicate higher bioavailable estrogens. 相似文献
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Mingxiao Sui David Sobek Andrew Abad Lauren Goodman Paromita Saha 《Mass Communication and Society》2017,20(6):895-908
A slew of gruesome executions by terrorist groups in 2014–2015 renewed interest in the public relations strategies of terrorists. As a case in point, the Islamic State group’s escalating brutality reflects their efforts as a relatively nascent extremist group to ensure a high and sustained volume of media coverage, especially among Western outlets. But what characteristics of events actually prompt coverage from major U.S. news media? Using a rich data set of terrorist incidents and coverage from six major broadcast and cable U.S. networks, we model coverage of terrorist incidents as a function of event proximity from U.S. soil, target country affinity with the United States, number of total and U.S. casualties, and the characteristics of the terrorist group. Our findings largely corroborate expectations set forth by the literature on norms and routines of journalism and economics of news. When it comes to terrorism, coverage by U.S. major media outlets is largely dependent on proximity to and affinity with the United States, weapons of mass destruction, and the number of global and U.S. casualties. 相似文献
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Nguyen Tin Q. Pickren Sage E. Saha Neena M. Cutting Laurie E. 《Reading and writing》2020,33(4):1037-1073
Reading and Writing - As readers struggle to coordinate various reading- and language-related skills during oral reading fluency (ORF), miscues can emerge, especially when processing complex texts.... 相似文献
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The symbiotic association between plant and fungi (mycorrhizal association) is an amazing phenomenon observed in nature. The mycorrhizal association is one of nature’s boons for sustainable agriculture. In today’s changing environment, indiscriminate use of pesticides and chemicals pose a great threat to the existence of mycorrhizal species. There is a need to spread awareness in order to save mycorrhizal fungi from extinction. 相似文献
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International networks and flows of academic talent: Overseas recruitment in Australian universities
Flows of academic talent among nations are an important factor in the transmission of values and knowledge throughout the world. As a point of entry for a study of international networks through which these flows occur, appointments to all universities in a single society, Australia, are examined for the years 1961–1974.During this period approximately 40 percent of appointees to academic positions in Australian universities came from overseas. Although there were fluctuations around this mean value, no major overall trends were discerned. The proportion of overseas appointments, however, was inversely related to university size, but unrelated to institutional age or total appointments.There has been a decrease in the proportion of appointees coming from British universities, and an increase from American universities. However over half of the appointees from the latter in 1970 were returning Australians.Some implications of these academic flow patterns are suggested, as are directions for future research.Earlier versions of this paper were presented at the Sixth Annual Conference of the Australian Association for Research in Education, Adelaide, November 1975, and at the Institute for International Education, University of Stockholm, 1976.We would like to express our appreciation to the Department of Sociology (Arts), Australian National University (A.N.U.), for the initial grant that made it possible to begin this project, and to the A.N.U. Advisory Commitee on Science and Technology Policy Research for funds allowing us to continue it. 相似文献
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Ashwini Kumar H. S. Batra Mithu Banerjee S. Bandyopadhyay T. K. Saha Pratibha Misra Vivek Ambade 《Indian journal of clinical biochemistry : IJCB》2017,32(3):343-346
Thalassemia is a congenital hemolytic disease which is treated by repeated blood transfusion. Chronic iron overload is currently considered to be the primary cause of mortality in β-thalassemia, mainly due to the induction of left-sided cardiac failure. Iron overload results from a number of mechanisms associated with the disease itself. In addition to chronic iron overload thalassemic patients are more prone for procoagulant status which in turn lead to clinical thrombotic events. The hypercoagulable state in thalassemia is due to multiple elements, a combination of which is often the drive behind a clinical thromboembolic events. PAI-1 study was done in thalassemia major patients receiving multiple blood transfusion as a marker for procoagulant status. Total of 30 thalassemic patients on repeated blood transfusion was included in the study and total of 30 healthy age and sex matched controls were included in the study. It was also found that there was significant differences between cases and controls. The mean level of PAI 1 in controls was 3047 ± 414 pg/ml, the value in cases was 3683 ± 358 pg/ml. The level was significantly increased (p < 0.05) in the cases compared to controls. PAI-1 levels were also compared with the total number of blood transfusion which correlates well. 相似文献