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1.
This paper analyzes science productivity for nine developing countries. Results show that these nations are reducing their science gap, with R&D investments and scientific impact growing at more than double the rate of the developed world. But this “catching up” hides a very uneven picture among these nations, especially on what they are able to generate in terms of impact and output relative to their levels of investment and available resources. Moreover, unlike what one might expect, it is clear that the size of the nations and the relative scale of their R&D investments are not the key drivers of efficiency.  相似文献   

2.
The term “translational science” has recently become very popular with its usage appearing to be almost exclusively related to medicine, in particular, the “translation” of biological knowledge into medical practice. Taking the perspective that translational science is somehow different than science and that sound science is grounded in an epistemology developed over millennia, it seems imperative that the meaning of translational science be carefully examined, especially how the scientific epistemology manifests itself in translational science. This paper examines epistemological issues relating mainly to modeling in translational science, with a focus on optimal operator synthesis. It goes on to discuss the implications of epistemology on the nature of collaborations conducive to the translational investigative process. The philosophical concepts are illustrated by considering intervention in gene regulatory networks.  相似文献   

3.
Citizen science is a research practice that relies on public contributions of data. The strong recognition of its educational value combined with the need for novel methods to handle subsequent large and complex data sets raises the question: Is citizen science effective at science? A quantitative assessment of the contributions of citizen science for its core purpose – scientific research – is lacking. We examined the contribution of citizen science to a review paper by ornithologists in which they formulated ten central claims about the impact of climate change on avian migration. Citizen science was never explicitly mentioned in the review article. For each of the claims, these ornithologists scored their opinions about the amount of research effort invested in each claim and how strongly the claim was supported by evidence. This allowed us to also determine whether their trust in claims was, unwittingly or not, related to the degree to which the claims relied primarily on data generated by citizen scientists. We found that papers based on citizen science constituted between 24 and 77% of the references backing each claim, with no evidence of a mistrust of claims that relied heavily on citizen-science data. We reveal that many of these papers may not easily be recognized as drawing upon volunteer contributions, as the search terms “citizen science” and “volunteer” would have overlooked the majority of the studies that back the ten claims about birds and climate change. Our results suggest that the significance of citizen science to global research, an endeavor that is reliant on long-term information at large spatial scales, might be far greater than is readily perceived. To better understand and track the contributions of citizen science in the future, we urge researchers to use the keyword “citizen science” in papers that draw on efforts of non-professionals.  相似文献   

4.
Scholarly collaborations across disparate scientific disciplines are challenging. Collaborators are likely to have their offices in another building, attend different conferences, and publish in other venues; they might speak a different scientific language and value an alien scientific culture. This paper presents a detailed analysis of success and failure of interdisciplinary papers—as manifested in the citations they receive. For 9.2 million interdisciplinary research papers published between 2000 and 2012 we show that the majority (69.9%) of co-cited interdisciplinary pairs are “win-win” relationships, i.e., papers that cite them have higher citation impact and there are as few as 3.3% “lose-lose” relationships. Papers citing references from subdisciplines positioned far apart (in the conceptual space of the UCSD map of science) attract the highest relative citation counts. The findings support the assumption that interdisciplinary research is more successful and leads to results greater than the sum of its disciplinary parts.  相似文献   

5.
Several steering models in the visual science literature attempt to capture the visual strategies in curve driving. Some of them are based on steering points on the future path (FP), others on tangent points (TP). It is, however, challenging to differentiate between the models’ predictions in real–world contexts. Analysis of optokinetic nystagmus (OKN) parameters is one useful measure, as the different strategies predict measurably different OKN patterns. Here, we directly test this prediction by asking drivers to either a) “drive as they normally would” or b) to “look at the TP”. The design of the experiment is similar to a previous study by Kandil et al., but uses more sophisticated methods of eye–movement analysis. We find that the eye-movement patterns in the “normal” condition are indeed markedly different from the “tp” condition, and consistent with drivers looking at waypoints on the future path. This is the case for both overall fixation distribution, as well as the more informative fixation–by–fixation analysis of OKN. We find that the horizontal gaze speed during OKN corresponds well to the quantitative prediction of the future path models. The results also definitively rule out the alternative explanation that the OKN is produced by an involuntary reflex even while the driver is “trying” to look at the TP. The results are discussed in terms of the sequential organization of curve driving.  相似文献   

6.
The Internet destroyed the ecology of traditional science journalism, drying up ad revenues and pushing “old school” mass media toward extinction. But the new technology opened a wider landscape for digital science writers, online “content curators,” and scientists to chronicle the wonders and worries of modern science. For those thinking of a career in science writing, here is a flash history, a quick overview, some advice, and a few cautions.  相似文献   

7.
Freelancer     
What long‐term changes can we expect, in how academic work is conducted and remunerated, in the post‐pandemic world? Subject Categories: S&S: Economics & Business, S&S: History & Philosophy of Science, S&S: Ethics

Although still two years away, my looming “retirement” from university employment is inevitably going to herald a major change of life. “Of course, you''ll become ‘Emeritus’”, most colleagues have opined. My answer to all of them has been a firm “No. I''ll become a freelancer”. The concept of a freelance scientist is obviously so alien to most of them that they invariably change the subject immediately. However, my gut feeling is that in 20 years or less, almost all of us will be freelancers of some kind.The COVID‐19 pandemic has altered the world of work in very obvious ways. There has been much talk of how the changes are likely to carry over to the future, even if more traditional patterns will probably reassert themselves in the short to medium term. Working from home, conducting meetings remotely, not wasting days travelling between continents for a few precious hours of face‐time and being free to structure workdays around our own priorities: these are the most obvious novelties that many believe will continue long after the effects of the pandemic on health and wealth have faded. But I have a slightly different take.Major disruptive events of worldwide import—world wars, global economic slumps, cataclysmic volcanic eruptions and pandemics—have often been harbingers of profound social change. This is not only due to their direct and immediate effects, but more so because the disruption accelerates and facilitates changes that were already happening. In the case of COVID‐19, one may place in this category the demise of cash, the rise of streaming services in place of live entertainment, online grocery shopping and even virtual dating. Another is paying people to stay home and do nothing, otherwise known as the universal basic income (or, in the USA, “stimulus cheques”).Inefficient practices in academia are equally ripe for change. Why bother with classes for 500 first‐year students when a much better edition of the lecture by an expert communicator is available on the internet? What’s the use of an ageing PhD advisor 20 years away from bench science, who struggles to guide the next generation of experimentalists in the lab, when the expertise of a plethora of specialists can easily be accessed online? What’s the value in published papers that are read by fewer people than wrote them? Or in seminars delivered to a roomful of attentive postdocs and PhD students who lack the courage or the time to address even a single question to the speaker?Yes, there is still great value in small‐group teaching and mentorship, in the creative verve of a close‐knit laboratory team, and in good writing and oratory: but the required skills are already different from those in which we were schooled. Thus, even if I do not hold in my palm the crystal ball to predict exactly which changes will happen and how fast, I believe that our traditional jobs are going to melt away very fast in the post‐pandemic world. Universities and research institutes may still exist, but I expect that their practices will be different, reshaped by rational need more than by tradition. Today’s academic science is already quite unlike that of 1920, but it has evolved so slowly during that century—spanning a much longer time period than the lifetime of a scientific career—that we barely perceive the changes that have occurred. In contrast, the changes now afoot will certainly happen much faster, especially since the funds to support the current “inefficient” model are likely to diminish rapidly.So, I predict that university teaching and science communication in general will be the first to evolve into freelance activities, where universities will invite bids from individuals or their agents and award commissions on a fee‐paying basis rather than using salaried employees. But these are not the only component parts of academia facing such a shake‐up. The practices of laboratory science are also likely to be rebuilt. When discussing with colleagues how research might be undertaken on a freelance basis, they usually raise issues such as bricks and mortar and the complex infrastructure that is needed to sustain cutting‐edge research, especially in the life sciences: how, they ask, could a freelancer access state‐of‐the‐art imaging, mass spectrometry or DNA sequencing? How could their acquisition of such expensive hardware possibly be financed, especially if they had to somehow acquire it personally and set it up in the garage or carry it around with them?But the answers to these questions are already evident in the practices of some major research agencies, most notably in Europe’s pioneering funder of single‐investigator grants for blue‐skies science, the European Research Council (ERC). The ERC already treats its awardees as freelancers, in the sense that it encourages them to shop around for the most attractive venue in which to embed and implement their research project. The quest for the best host institution takes place not only at the preparatory step of an ERC application: it also happens after the grant is awarded, since the grant money is considered inherently portable and can even be moved later on from one institution to another. This encourages potential host universities to compete for providing the best research environment, in which many factors come into play, not just but not least, the quality of its research infrastructure. How well it supports, rather than burdens its staff with administrative tasks, the nature of its recruitment and personnel policies, how it handles relocation issues for incoming researchers and their families, what opportunities it provides for further training in relevant skills and career development: these are just some of the factors in play.In recent years, universities have seen their primary role in this process as encouraging their own tenured or tenure‐track staff to apply for ERC grants. But I foresee the emphasis shifting increasingly to investigators who seek out universities that can make the most appealing offer, whilst universities and government agencies standing behind them will shape their policies so as to remain competitive. Moreover, in such a landscape there is no reason why a scientist cannot operate research projects on multiple sites if this offers the most convenient arrangement. The tools for remote meetings and cloud computing to which we have all become accustomed mean that there is no longer any need for a research group to be located in one building or even in one country, to operate efficiently as a team.At the same time, many of the tasks involved in running a research institute or department can be efficiently outsourced to the most competitive bidder—to be assessed on the basis of value‐for‐money, not just minimum cost. As a society, we should be asking ourselves why we continue to waste the talents of highly specialized scientists on performing admin tasks for which they are neither properly trained nor motivated, instead of just engaging a smart‐software developer. Why should we fund creative thinkers to undertake laboratory projects in host institutions that do not have the required state‐of‐the‐art facilities to perform them? Or allocate budgets that are so pared down that grantholders cannot even afford to purchase such services elsewhere? Why should we expect them to make do with poorly paid trainees instead of a team of professionals? And why should we continue to organize research in pyramid structures where everything depends on commands from the top, where all findings are announced using an institutional slide template, where colleagues elsewhere are considered as untrustworthy “competitors”, and where credit for individual creativity is usurped by seniors who barely know the contents of the papers they “write”?In the “old system”, we have all gotten used to making do with sub‐optimal working arrangements and grumbling about them, whilst considering them an immutable fact of life. But I envisage a time coming soon where we scientists will have the edge in reshaping the market for teaching and research in a way that is much more to our liking and properly aligned with our skills. At the same time, our individual success in accomplishing our professional goals will have a direct effect on our income and job satisfaction, and steer us towards activities where our talents are most effectively deployed. In short, I believe that we, as freelance scientists, will be much more firmly in control of science in the future and that time is not far off.  相似文献   

8.
The concept of “global health” that led to the establishment of the World Health Organization in the 1940s is still promoting a global health movement 70 years later. Today’s global health acts first as a guiding principle for our effort to improve people’s health across the globe. Furthermore, global health has become a branch of science, “global health science,” supporting institutionalized education. Lastly, as a discipline, global health should focus on medical and health issues that: 1) are determined primarily by factors with a cross-cultural, cross-national, cross-regional, or global scope; 2) are local but have global significance if not appropriately managed; and 3) can only be efficiently managed through international or global efforts. Therefore, effective global health education must train students 1) to understand global health status; 2) to investigate both global and local health issues with a global perspective; and 3) to devise interventions to deal with these issues.  相似文献   

9.
10.
After John Gardner''s presentation on “Self-Renewal” to THE WESTERN JOURNAL OF MEDICINE Editors'' Meeting, * Joseph Murphy, MD, Special Editor for Wyoming, asked the former Secretary of Health, Education, and Welfare, “Where are you in your life''s cycle?” Dr Gardner, who is 80 years old, answered, “When Chief Justice Oliver Wendell Holmes, Jr, was in his 90s, he was asked a similar question and said, `I''m like a race horse cantering along after the race is over, cooling down.'' Well, I''m nowhere near cantering! I''m still in the race, pushing the world.” race, pushing the world.”John Gardner, who received his undergraduate degree from Stanford and PhD from the University of California, Berkeley, taught at the college level for several years before he joined the Carnegie Foundation. As president of Carnegie Corporation and Carnegie Foundation for the Advancement of Teaching, he began to “push the world” toward education and in 1964 received the country''s highest civilian honor, the Presidential Medal of Freedom. He has also pushed it toward political reform by founding Common Cause, toward grass-roots political action by founding the Urban Coalition, toward leadership training by founding the White House Fellows program, and toward volunteerism by founding the Independent Sector (a coalition of for-profit and not-for-profit organizations and foundations). His books, including Excellence, Self-Renewal, No Easy Victories, and On Leadership, have pushed readers to new understanding of themselves and of organizations to higher levels of creativity and energy to get important work done. His current research focuses on discovering and defining the characteristics of healthy, vital communities. His call to “keep on keeping on,” indeed, to push the world, leads to constructive change. Active people become effective people, infused with the energy and optimism that good hard work inspires. I think you will find this paper as invigorating to read as it was to hear.  相似文献   

11.

Background

Though rare in occurrence, patients with rare bleeding disorders (RBDs) are highly heterogeneous and may manifest with severe bleeding diathesis. Due to the high rate of consanguinity in many caste groups, these autosomal recessive bleeding disorders which are of rare occurrence in populations across the world, may not be as rare in India.

Objectives

To comprehensively analyze the frequency and nature of mutations in Indian patients with RBDs.

Methods

Pubmed search was used (www.pubmed.com) to explore the published literature from India on RBDs using the key words “rare bleeding disorders”, “mutations”, “India”, “fibrinogen”, “afibrinogenemia”, “factor II deficiency”, “prothrombin” “factor VII deficiency”, “factor V deficiency”, “factor X deficiency”, “factor XI deficiency”, “combined factor V and VIII deficiency”, “factor XIII deficiency”, “Bernard Soulier syndrome” and “Glanzmanns thrombasthenia” in different combinations. A total of 60 relevant articles could be retrieved. The distribution of mutations from India was compared with that of the world literature by referring to the Human Gene Mutation Database (HGMD) (www.hgmd.org).

Results

Taken together, 181 mutations in 270 patients with different RBDs have been reported from India. Though the types of mutations reported from India and their percentage distribution with respect to the world data are largely similar, yet much higher percentage of small deletions, duplication mutations, insertions, indels were observed in this analysis. Besides the identification of novel mutations and polymorphisms, several common mutations have also been reported, which will allow to develop a strategy for mutation screening in Indian patients with RBDs.

Conclusion

There is a need for a consortium of Institutions working on the molecular pathology of RBDs in India. This will facilitate a quicker and cheaper diagnosis of RBDs besides its utility in first trimester prenatal diagnosis of the affected families.  相似文献   

12.
The coronavirus disease of 2019 (COVID‐19) pandemic has impacted educational systems worldwide during 2020, including primary and secondary schooling. To enable students of a local secondary school in Brisbane, Queensland, to continue with their practical agricultural science learning and facilitate online learning, a “Grass Gazers” citizen science scoping project was designed and rapidly implemented as a collaboration between the school and a multidisciplinary university research group focused on pollen allergy. Here, we reflect on the process of developing and implementing this project from the perspective of the school and the university. A learning package including modules on pollen identification, tracking grass species, measuring field greenness, using a citizen science data entry platform, forensic palynology, as well as video guides, risk assessment and feedback forms were generated. Junior agriculture science students participated in the learning via online lessons and independent data collection in their own local neighborhood and/or school grounds situated within urban environments. The university research group and school coordinator, operating in their own distributed work environments, had to develop, source, adopt, and/or adapt material rapidly to meet the unique requirements of the project. The experience allowed two‐way knowledge exchange between the secondary and tertiary education sectors. Participating students were introduced to real‐world research and were able to engage in outdoor learning during a time when online, indoor, desk‐based learning dominated their studies. The unique context of restrictions imposed by the social isolation policies, as well as government Public Health and Department of Education directives, allowed the team to respond by adapting teaching and research activity to develop and trial learning modules and citizen science tools. The project provided a focus to motivate and connect teachers, academic staff, and school students during a difficult circumstance. Extension of this citizen project for the purposes of research and secondary school learning has the potential to offer ongoing benefits for grassland ecology data acquisition and student exposure to real‐world science.  相似文献   

13.
14.
2016年中国植物科学若干领域重要研究进展   总被引:4,自引:0,他引:4  
《植物学报》2017,52(4):394-452
2016年中国植物科学持续稳步发展, 表现在中国植物科学家在国际主流高影响力学术期刊发表文章的数量稳中有升, 中国植物科学领域的期刊逆风出行, 进入研究性期刊世界前三甲行列。中国科学家在植物学诸多领域取得了丰硕的成果。水稻(Oryza sativa)产量性状杂种优势的分子遗传机制解析入选2016年中国科学十大进展; 植物受精过程中雌雄配子体信号识别机制的研究和独脚金内酯的受体感知机制入选2016年生命科学十大进展。我国植物科学, 特别是以水稻为代表的作物研究在国际学术界已占有一席之地。例如, 在水稻组学(如基因组和转录组等)资源和技术平台的建立、重测序的开发及功能基因的克隆和调控网络的解析方面取得了系列重要成果(如揭示了独脚金内酯信号转导的“去抑制化激活”机制、从分子水平上阐释了水稻籼粳杂种不育和广亲和性基因S5的作用机理及发现了控制水稻耐冷的基因组位点), 已经引领世界水稻乃至作物科学研究。该文对2016年中国本土植物科学若干领域取得的重要研究进展进行了概括性评述, 旨在全面追踪当前中国植物科学领域的发展前沿和研究热点, 与读者共享我国科学家所取得的杰出成就。  相似文献   

15.

Background

Intense interest surrounds the recent expansion of US National Institutes of Health (NIH) budgets as part of economic stimulus legislation. However, the relationship between NIH funding and cardiovascular disease research is poorly understood, making the likely impact of this policy change unclear.

Methods

The National Library of Medicine''s PubMed database was searched for articles published from 1996 to 2006, originating from U.S. institutions, and containing the phrases “cardiolog,” “cardiovascular,” or “cardiac,” in the first author''s department. Research methodology, journal of publication, journal impact factor, and receipt of NIH funding were recorded. Differences in means and trends were tested with t-tests and linear regression, respectively, with P≤0.05 for significance.

Results

Of 117,643 world cardiovascular articles, 36,684 (31.2%) originated from the U.S., of which 10,293 (28.1%) received NIH funding. The NIH funded 40.1% of U.S. basic science articles, 20.3% of overall clinical trials, 18.1% of randomized-controlled, and 12.2% of multicenter clinical trials. NIH-funded and total articles grew significantly (65 articles/year, P<0.001 and 218 articles/year, P<0.001, respectively). The proportion of articles receiving NIH funding was stable, but grew significantly for basic science and clinical trials (0.87%/year, P<0.001 and 0.67%/year, P = 0.029, respectively). NIH-funded articles had greater journal impact factors than non NIH-funded articles (5.76 vs. 3.71, P<0.001).

Conclusions

NIH influence on U.S. cardiovascular research expanded in the past decade, during the period of NIH budget doubling. A substantial fraction of research is now directly funded and thus likely sensitive to budget fluctuations, particularly in basic science research. NIH funding predicts greater journal impact.  相似文献   

16.
In science, technology, engineering, and mathematics (STEM) fields, disabled people remain a significantly underrepresented part of the workforce. Recent data suggests that about 20% of undergraduates in the United States have disabilities, but representation in STEM fields is consistently lower than in the general population. Of those earning STEM degrees, only about 10% of undergraduates, 6% of graduate students, and 2% of doctoral students identify as disabled. This suggests that STEM fields have difficulty recruiting and retaining disabled students, which ultimately hurts the field, because disabled scientists bring unique problem-solving perspectives and input. This essay briefly explores the ways in which ableism—prejudice against disabled people based on the assumption that they are “less than” their nondisabled peers—in research contributes to the exclusion of disabled scientists and suggests ways in which the scientific community can improve accessibility and promote the inclusion of disabled scientists in academic science.  相似文献   

17.
Many years of training are required to obtain a job as an academic scientist. Is this investment of time and effort worthwhile? My answer is a resounding “yes.” Academic scientists enjoy tremendous freedom in choosing their research and career path, experience unusual camaraderie in their lab, school, and international community, and can contribute to and enjoy being part of this historical era of biological discovery. In this essay, I further elaborate by listing my top ten reasons why an academic job is a desirable career for young people who are interested in the life sciences.Students are attracted to careers in academic science because of their interest in the subject rather than for financial reward. But then they hear messages that make them think twice about this career choice. It is difficult to find a job: “Hear about Joe? Three publications as a postdoc and still no job offers.” The NIH pay line is low: “Poor Patricia, she is now on her third submission of her first NIH grant.” Publishing is painful: “Felix''s grad school thesis work has been rejected by three journals!” Academic jobs are demanding: “Cathy has spent her last three weekends writing grants rather than being with her family.”Such scenarios do take place, but if you think that this is what a career in academic science is about, then you need to hear the other side of the story. And this is the purpose of this article—a chance to reflect on the many good things about the academic profession. In the classic movie It''s a Wonderful Life, George Bailey is at the point of despair but regains his confidence through the wisdom and perspective of a guardian angel, Clarence. Doubt and setbacks also are bound to happen in science (as is true of other careers), but pessimism should not rule the day. It is a great profession and there are many happy endings. I would like to share my top ten reasons of why being an academic professor is a “wonderful life,” one that bright and motivated young people should continue to aspire to pursue.  相似文献   

18.
19.
Brucella species include important zoonotic pathogens that have a substantial impact on both agriculture and human health throughout the world. Brucellae are thought of as “stealth pathogens” that escape recognition by the host innate immune response, modulate the acquired immune response, and evade intracellular destruction. We analyzed the genome sequences of members of the family Brucellaceae to assess its evolutionary history from likely free-living soil-based progenitors into highly successful intracellular pathogens. Phylogenetic analysis split the genus into two groups: recently identified and early-dividing “atypical” strains and a highly conserved “classical” core clade containing the major pathogenic species. Lateral gene transfer events brought unique genomic regions into Brucella that differentiated them from Ochrobactrum and allowed the stepwise acquisition of virulence factors that include a type IV secretion system, a perosamine-based O antigen, and systems for sequestering metal ions that are absent in progenitors. Subsequent radiation within the core Brucella resulted in lineages that appear to have evolved within their preferred mammalian hosts, restricting their virulence to become stealth pathogens capable of causing long-term chronic infections.  相似文献   

20.

Background

South Africa has one of the highest per capita rates of tuberculosis (TB) incidence in the world. In 2012, the South African government produced a National Strategic Plan (NSP) to control the spread of TB with the ambitious aim of zero new TB infections and deaths by 2032, and a halving of the 2012 rates by 2016.

Methods

We used a transmission model to investigate whether the NSP targets could be reached if immediate scale up of control methods had happened in 2014. We explored the potential impact of four intervention portfolios; 1) “NSP” represents the NSP strategy, 2) “WHO” investigates increasing antiretroviral therapy eligibility, 3) “Novel Strategies” considers new isoniazid preventive therapy strategies and HIV “Universal Test and Treat” and 4) “Optimised” contains the most effective interventions.

Findings

We find that even with this scale-up, the NSP targets are unlikely to be achieved. The portfolio that achieved the greatest impact was “Optimised”, followed closely by “NSP”. The “WHO” and “Novel Strategies” had little impact on TB incidence by 2050. Of the individual interventions explored, the most effective were active case finding and reductions in pre-treatment loss to follow up which would have a large impact on TB burden.

Conclusion

Use of existing control strategies has the potential to have a large impact on TB disease burden in South Africa. However, our results suggest that the South African TB targets are unlikely to be reached without new technologies. Despite this, TB incidence could be dramatically reduced by finding and starting more TB cases on treatment.  相似文献   

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