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1.
Patrick Sullivan 《CMAJ》1996,154(8):1259-1260
A recent CMA-sponsored workshop on political lobbying attracted many more physicians than anticipated. Dr. Bill Acker, chair of the Political Action Committee, said this is a sign of physicians'' growing interest in lobbying and politics. 相似文献
2.
Kaat Schulte Fischedick 《Journal of the history of biology》2000,33(2):291-314
This article focuses on early British vegetation science, in particular on the British Vegetation Committee. In earlier histories
of (plant) ecology, the period of the Committee's life, 1904–1913, renowned for its surveys and its maps, was depicted as
a brief prelude to British plant ecology. This article traces the course of ``survey' and ``ecology' within the Committee,
demonstrating that survey and ecology were both distinct and intertwined within the Committee.The Committee adhered to two
lines of research, one analyzing relatively large areas of vegetation on a small scale (few details), and the other, relatively
small areas on a large scale (great detail). When the Committee was founded, vegetation research of relatively large areas
dominated, but the balance gradually swung towards research on small areas. Two prominent Committee members, Smith and Tansley,
furthermore advocated two research plans, a national survey plan and an ecological research plan. These diverging ideals however
co‐existed peacefully and uncontroversially, in contrast to a survey and ecology dichotomy suggested in earlier accounts.An
analysis demonstrates the intertwinement of survey and ecology in the period of the Committee's existence. The ``ecological
expeditions' also mapped vegetation, and the scale of the ``survey work' moreover increased in the Committee's early years.
Only by acknowledging their intertwinement can the fate of a particular kind of ``survey-research' be understood. My analysis
shows that this kind of vegetation research did not survive the Committee because of its ecological orientation. This conclusion
contradicts the impression prevailing from earlier historical accounts, viz. that British survey work failed because it was
insufficiently ecological.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
3.
Glacier Bay National Park had one of the largest breeding aggregations of harbor seals in Alaska, and it is functionally the only marine reserve for harbor seals in Alaska; yet, numbers of seals in the Bay are declining rapidly. Understanding why seals in Glacier Bay are declining may clarify their minimal habitat needs. We estimated population trends using models that controlled for environmental and observer‐related factors. In 1992, 6,200 seals were counted on icebergs in a tidewater glacial fjord and at terrestrial sites; by 2002 only 2,550 seals were counted at these same haul‐outs. Numbers of non‐pups in the glacial fjord declined by 6.6%/yr (?39%/8 yr) in June and by 9.6%/yr (?63%/11 yr) in August and at all other haul‐outs by 14.5%/yr (?75%/10 yr) during August. In the glacial fjord the number of pups remained steady from 1994 to 1999 and made up an increasing proportion of seals counted (5.4%/yr), and the proportion of pups peaked at 34%–36%. The rapid declines do not appear to be due to changes in seal behavior or redistribution. The declines reinforce genetic evidence that harbor seals in Glacier Bay are demographically isolated from other populations and indicate that current management stocks need to be redefined. Changes in Glacier Bay's ecosystem and population demographic data from the glacial fjord suggest that interspecific competition and predation are likely factors in the declines. 相似文献
4.
Hueffer K Holcomb D Ballweber LR Gende SM Blundell G O'Hara TM 《Journal of wildlife diseases》2011,47(4):984-988
The harbor seal population in Glacier Bay National Park, Alaska, has declined by over 70% since 1992. The reasons for this decline are not known. We examined serum antibodies and feces for evidence of exposure to multiple pathogens in this population. We also studied harbor seals from a reference site on Kodiak Island. In 2007, we found antibodies against Leptospira spp. in 31% of specimens from harbor seals in Glacier Bay, but no detectable serum antibodies in samples from Kodiak. In 2008, no samples had detectable antibodies against Leptospira spp. No serum antibodies against Toxoplasma gondii, morbilliviruses, or presence of Cryptosporidium in fecal samples were detected. However, Giardia was found in 6% of the fecal samples from Glacier Bay. Our results indicate that the harbor seal population in Glacier Bay National Park could be immunologically na?ve to distemper viruses and therefore vulnerable to these pathogens. Given the relatively low prevalence of antibodies and low titers, pathogens likely are not the reason for the harbor seal decline in Glacier Bay. 相似文献
5.
G. Arturo Snchez‐Azofeifa Mauricio Quesada Jon Paul Rodríguez Jafet M. Nassar Kathryn E. Stoner Alicia Castillo Theresa Garvin Egle L. Zent Julio C. Calvo‐Alvarado Margaret E.R. Kalacska Laurie Fajardo John A. Gamon Pablo Cuevas‐Reyes 《Biotropica》2005,37(4):477-485
Our understanding of the human and biophysical dimensions of tropical dry forest change and its cumulative effects is still in the early stages of academic discovery. The papers in this special section on Neotropical dry forests cover a wide range of sites and problems ranging from the use of multispectral and hyperspectral remote sensing platforms to the impact of hurricanes on tropical dry forest regeneration. Here, we present to the scientific community the results of a workshop on which research priorities for tropical dry forests were discussed. This discussion focuses on the need to develop linkages between remote sensing, ecological, and social science research. The incorporation of social sciences into ecological research could contribute dramatically to our understandings of tropical dry forests by providing important contextual information to ecologists, and by helping to develop an important science–policy–public nexus on which environmental management can succeed. 相似文献
6.
Marino Vacchi Arthur L. DeVries Clive W. Evans Massimiliano Bottaro Laura Ghigliotti Laura Cutroneo Eva Pisano 《Polar Biology》2012,35(10):1573-1585
Pleuragramma antarcticum is the dominant pelagic fish in the waters of the continental shelf in high Antarctic regions, where it plays a key role in the food web. A nursery ground for eggs of this species was first identified in 2002 in Terra Nova Bay (Ross Sea), where eggs were found trapped in ice platelets under the sea-ice during the spring. As part of a monitoring program aimed at understanding the geographic and temporal characteristics of this nursery ground, the present study reports on surveys carried out in the austral springs of 2005 and 2006 using a simple and effective method for sampling from the sea-ice. These surveys enabled the evaluation of the spatial range of the nursery area of the Antarctic silverfish in the sea-ice of the coastal area of Victoria Land between the Coulman Island and the Drygalski Glacier Tongue. P. antarcticum eggs were concentrated in an area of Terra Nova Bay of about 270?km2, encompassing two adjacent sites, Gerlache Inlet and Silverfish Bay. The present results add information on life cycle and hatching period of the Antarctic silverfish and confirm the importance of the Terra Nova Bay as a nursery area for this important species. Moreover, the survey points to the sea-ice cover and platelet ice as important environmental features of the nursery area. 相似文献
7.
A Brief History of the Biological Stain Commission: its Founders, its Mission and the First 75 Years
David P. Penney 《Biotechnic & histochemistry》2000,75(4):154-166
The need for batch-to-batch consistency in available dyes and stains used for biological purposes posed a considerable problem for United States scientists following World War I. Prior to that time, most of the acceptable stains in this country were of German origin. In an attempt to standardize the performance of biological stains and dyes, the Society of American Bacteriologists in 1922 appointed Dr. Harold Conn to form the Committee on the Standardization of Biological Stains. To assist him, Dr. Conn recruited scientists from several major professional scientific societies. Mr. Holland Will, a Rochester, NY, vendor of stains, was also instrumental in the Committee's success. This article traces the origin, mission and accomplishments of the product of that Committee, the Biological Stain Commission, through the past 75 years, and focuses on some of the major events that influenced and shaped its development. 相似文献
8.
《新西兰生态学杂志》2011,30(1):3-11
Has the science of ecology fulfilled the promises made by the originators of ecological science at the start of the last century? What should ecology achieve? Have good policies for environmental management flowed out of ecological science? These important questions are rarely discussed by ecologists working on detailed studies of individual systems. Until we decide what we wish to achieve as ecologists we cannot define progress toward those goals. Ecologists desire to achieve an understanding of how the natural world operates, how humans have modified the natural world, and how to alleviate problems arising from human actions. Ecologists have made impressive gains over the past century in achieving these goals, but this progress has been uneven. Some sub-disciplines of ecology are well developed empirically and theoretically, while others languish for reasons that are not always clear. Fundamental problems can be lost to view as ecologists fiddle with unimportant pseudo-problems. Bandwagons develop and disappear with limited success in addressing problems. The public demands progress from all the sciences, and as time moves along and problems get worse, more rapid progress is demanded. The result for ecology has too often been poor, short-term science and poor management decisions. But since the science is rarely repeated and the management results may be a generation or two down the line, it is difficult for the public or for scientists to decide how good or bad the scientific advice has been. In ecology over the past 100 years we have made solid achievements in behavioural ecology, population dynamics, and ecological methods, we have made some progress in understanding community and ecosystem dynamics, but we have made less useful progress in developing theoretical ecology, landscape ecology, and natural resource management. The key to increasing progress is to adopt a systems approach with explicit hypotheses, theoretical models, and field experiments on a scale defined by the problem. With continuous feedback between problems, possible solutions, relevant theory and experimental data we can achieve our scientific goals. 相似文献
9.
自豪 自信 自省——寄语中国生态学 总被引:1,自引:0,他引:1
生态学已经不仅是当今发展最快的科学领域 ,同时还逐步成为普通公民行为和政府决策的重要科学基础。我国自然环境复杂 ,几千年的文化 ,蕴涵着深邃的生态学思想。生态系统类型十分丰富为我国生态学者提供了独有的科研舞台。近年来生态学发展很快 ,有的领域正在走向世界生态学研究的前沿。我国政府对生态建设愈来愈重视 ,并提出全面、协调、可持续的科学发展观 ,它不仅为我国今后社会发展提出了方向 ,同时也必将为生态学的发展起到重大的指导和推动作用。我国生态学界应积极面向社会经济发展的需要 ,为社会经济的可持续发展作出重要贡献 相似文献
10.
Disclosing misattributed paternity 总被引:2,自引:0,他引:2
Ross LF 《Bioethics》1996,10(2):114-130
In 1994, the Committee on Assessing Genetic Risks of the Institute of Medicine published their recommendations regarding the ethical issues raised by advances in genetics. One of the Committee's recommendation was to inform women when test results revealed misattributed paternity, but not to disclose this information to the women's partners. The Committee's reason for withholding such information was that "'genetic testing should not be used in ways that disrupt families". In this paper, I argue that the Committee's conclusion in favour of nondisclosure to the male partner is unethical. I argue that both parties ought to be informed. 相似文献
11.
课程思政是新时期高校思想政治教育的重要途径之一。科学史记载了科学知识从产生到持续发展的过程,蕴含着丰富的育人价值,能够为专业课的课程思政教学提供新的视角和思路。本文从科学史丰富的育人价值中选择科学精神、科学思维、科学兴趣和科学伦理4个方面的素材;依托"基因工程"课程内容,对有关诺贝尔奖的科学史进行梳理;然后,以4个方面的素材为育人载体,深挖其中蕴含的思政元素,通过实施课程思政教学,帮助学生达成课程思政目标;最后,综合运用问卷和深度访谈相结合的方式评价教学效果。借此引领学生树立正确的价值观,提高思想政治水平,以期为生物学专业的课程思政体系建设提供参考。 相似文献
12.
K. Boundy-Mills K. McCluskey P. Elia J.A. Glaeser D.L. Lindner D.R. Nobles Jr J. Normanly F.M. Ochoa-Corona J.A. Scott T.J. Ward K.M. Webb K. Webster J.E. Wertz 《Journal of applied microbiology》2020,129(2):162-174
Collections of micro-organisms are a crucial element of life science research infrastructure but are vulnerable to loss and damage caused by natural or man-made disasters, the untimely death or retirement of personnel, or the loss of research funding. Preservation of biological collections has risen in priority due to a new appreciation for discoveries linked to preserved specimens, emerging hurdles to international collecting and decreased funding for new collecting. While many historic collections have been lost, several have been preserved, some with dramatic rescue stories. Rescued microbes have been used for discoveries in areas of health, biotechnology and basic life science. Suggestions for long-term planning for microbial stocks are listed, as well as inducements for long-term preservation. 相似文献
13.
Jessica Blatt 《Ethnic and racial studies》2013,36(6):1062-1079
This article examines the place of racial ideas in the constitution of political science as an academic discipline in the USA. For the Gilded Age generation that built the first PhD-granting departments in political science in the country, ‘race’ was the source of sovereignty, the basis of democratic legitimacy and a tool for delineating democracy's borders. It was also an important element of that cohort's aspiration to a ‘science’ of politics, distinct from what they viewed as the ‘abstract and formal’ theorizing of the eighteenth and early nineteenth centuries. Moreover, while the brand of racialism that characterized this founding moment came to seem outmoded within a few decades, in the 1920s political scientists seeking once again to claim an empirical, scientific basis for their discipline – and for American democracy – turned to new accounts and sciences of race. 相似文献
14.
Elizabeth Watts Uwe Hossfeld Irina Tolstikova Georgy S. Levit 《Theorie in den Biowissenschaften》2017,136(1-2):31-48
This paper provides a detailed look at how creationism originated in the United States and then explores how this evangelical trend was exported to Russia by American missionaries following the fall of the USSR. The comparison between these two countries is particularly interesting since the rivalry between the US and the USSR during the race to space caused both countries to revamp their science education. Yet, while political interests led both governments to focus on science education, creationist activities were simultaneously focused on diminishing the coverage of evolution in science classrooms. Now, decades following Sputnik’s trip to space, the urgency to strengthen scientific learning has waned, while creationists are still equally focused on removing scientific naturalism in favor of supernatural explanations for the origin of species. This paper thus offers an in-depth look at which groups are currently responsible for promoting creationist activities in the US and in Russia and which groups are working hard to keep supernatural doctrines out of science curriculum. 相似文献
15.
We provide the first direct evidence that Steller sea lions will prey on harbor seals. Direct observations of predation on marine mammals at sea are rare, but when observed rates of predation are extrapolated, predation mortality may be found to be significant. From 1992 to 2002, harbor seals in Glacier Bay declined steeply, from 6,200 to 2,500 (∼65%). After documenting that Steller sea lions were preying on seals in Glacier Bay, we investigated increased predation by sea lions as a potential explanation for the large decline. In five independent data sets spanning 21–25 yr and including 14,308 d of observations, 13 predation events were recorded. We conducted a fine-scale analysis for an intensively studied haul-out (Spider Island) and a broader analysis of all of Glacier Bay. At Spider Island, estimated predation by sea lions increased and could account for the entirety of annual pup production in 5 of 8 yr since 1995. The predation rate, however, was not proportional to the number of predators. Predation by Steller sea lions is a new source of mortality that contributed to the seal declines; however, life history modeling indicates that it is unlikely that sea lion predation is the sole factor responsible for the large declines. 相似文献
16.
Thomas D. Pollard 《Molecular biology of the cell》2012,23(21):4171-4174
I trace how the American Society for Cell Biology became a strong political advocate for the scientific community. I celebrate how good leadership and an effective staff enabled its energetic volunteer organization to have an impact, but I also ask how the effort can be made more successful.Many scientists take for granted that their scientific societies advocate for the well being of their individual members and the health of science. However, advocacy is a relatively recent development that emerged over the past two decades. Advocacy is essential in a democracy because science competes for taxpayer dollars with every other activity supported by the federal government. Advocacy is also important to ensure that lawmakers adopt sensible policies. I review how the American Society for Cell Biology (ASCB) and its allies learned how to fulfill this obligation, and I ask the reader to join the effort. The objective of these advocacy efforts is to influence political decisions through education and information, but the efforts by scientific societies are completely nonpartisan. Support from both political parties is essential to meet our goals.During the 1970s and 1980s biomedical scientists discussed federal funding and public policies that affected our science. Each year the public policy staff of the Federation of Societies of Experimental Biology (FASEB) helped member societies reach a consensus recommendation on the level of federal funding for the biosciences. However, we tended to talk to ourselves because we lacked effective ways to communicate with politicians or the outside world. For the most part we relegated the responsibility for advocacy to medical school deans and presidents of research universities. Their professional associations—the American Association of Medical Colleges (AAMC) and the Association of American Universities (AAU)—generally did a reasonable job of representing the interests of the scientists who worked at their schools. 相似文献
17.
Joseph W. Meeker 《Human ecology: an interdisciplinary journal》1977,5(2):155-159
Often unwittingly, scientific theory relies heavily upon literary metaphors which influence both the motives and the consequences of scientific endeavor. Human ecologists would do well to assess the implications of conventional metaphors which have been popular in traditional science, and to consider a newer picaresque mode better suited to the complexities of human ecology and to the temperament of modern consciousness. 相似文献
18.
Elizabeth A. Mathews Jamie N. Womble Grey W. Pendleton Lauri A. Jemison John M. Maniscalco Greg Streveler 《Marine Mammal Science》2011,27(4):852-880
We estimated trends in numbers of Steller sea lions in the Glacier Bay region of the eastern population from the 1970s to 2009. We documented the colonization of several new haul‐outs and the transition of one haul‐out (Graves Rocks) to a rookery, assessed seasonal patterns in distribution, and compared counts from different observation platforms. Sea lions increased in the region by 8.2%/yr (95%CI = 6.4%–10.0%), with the most growth at South Marble Island in Glacier Bay (16.6%/yr, 1991–2009) and rapid growth in Cross Sound. Seasonal patterns in the distribution of sea lions were likely influenced by new breeding opportunities and the seasonal availability of prey. Factors that likely contributed to the exceptional growth include availability of new habitat following deglaciation, immigration, redistribution, decreases in mortality, and ecosystem‐level changes. The rapid increase in sea lion numbers in this region is of particular interest in light of dramatic declines in the western population and evidence that Steller sea lions from both the eastern and western populations colonized the Graves Rocks rookery. The colonization and rookery development in this dynamic area may signal the reversal of the reproductive isolation of the two populations. 相似文献
19.
Nathan C. Emery Ellen K. Bledsoe Andrew O. Hasley Carrie Diaz Eaton 《Ecology and evolution》2021,11(4):1480
As we strive to lift up a diversity of voices in science, it is important for ecologists, evolutionary scientists, and educators to foster inclusive environments in their research and teaching. Academics in science often lack exposure to research on best practices in diversity, equity, and inclusion and may not know where to start to make scientific environments more welcoming and inclusive. We propose that by approaching research and teaching with empathy, flexibility, and a growth mind‐set, scientists can be more supportive and inclusive of their colleagues and students. This paper provides guidance, explores strategies, and directs scientists to resources to better cultivate an inclusive environment in three common settings: the classroom, the research laboratory, and the field. As ecologists and evolutionary scientists, we have an opportunity to adapt our teaching and research practices in order to foster an inclusive educational ecosystem for students and colleagues alike. 相似文献
20.
Peder Anker 《Journal of the history of biology》2004,37(2):303-331
The South African ecologist and political activist Edward Roux (1903–1966) used evolutionary biology to argue against racism.
During the cold-war, he transformed his communist beliefs into advocacy for scientific rationalism, management, and protection
of nature against advancing capitalism. These pleas for saving the environment served as a vehicle for questioning the more
risky issue of evolution and racial order in society. The link between ecological and political order had long been an important
theme among the country's ecologists and politicians alike. The statesman Jan Christian Smuts' holistic theory of evolution
and racial order inspired the nation's ecologists to sanctify an ecologically informed racial policy. This idealist informed
methodology stood in direct opposition to the materialist approach to ecology of Roux. These methodological debates reflected
differing political support from within the Union Party and people on the radical left, respectively. Ecology was of concern
to politicians because understandings of the order of nature had direct implications for the racial order of the South African
society.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献