共查询到19条相似文献,搜索用时 15 毫秒
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Citations are regarded as measures of quality yet citation rates vary widely within each of the top finance journals. Since article ordering is at the discretion of editors, lead articles can be interpreted as signals of quality that academics can use to allocate their attention and assert the value of their publications. Advances in electronic journal access allow researchers to directly access articles, suggesting article ordering may be less relevant today. We confirm the past importance of lead articles by examining citation rates from published papers as well as the wider source of papers that are listed in Google Scholar. Our findings also confirm using Google Scholar as a citation source provides congruent results to using citations from articles published in ISI-listed journals, with the additional benefit of it potentially being more timely since it includes wider citation sources, inclusive of working and conference papers. 相似文献
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Scientometrics - Does the growth of S&T human scale has demographic dividends analogous to that of economic growth? Inspired by the resource-based theory and able to use the panel data of... 相似文献
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Scientific authorship has important implications in science since it reflects the contribution to research of the different individual scientists and it is considered by evaluation committees in research assessment processes. This study analyses the order of authorship in the scientific output of 1,064 permanent scientists at the Spanish CSIC (WoS, 1994–2004). The influence of age, professional rank and bibliometric profile of scientists over the position of their names in the byline of publications is explored in three different research areas: Biology and Biomedicine, Materials Science and Natural Resources. There is a strong trend for signatures of younger researchers and those in the lower professional ranks to appear in the first position (junior signing pattern), while more veteran or highly-ranked ones, who tend to play supervisory functions in research, are proportionally more likely to sign in the last position (senior signing pattern). Professional rank and age have an effect on authorship order in the three fields analysed, but there are inter-field differences. Authorship patterns are especially marked in the most collaboration-intensive field (i.e. Biology and Biomedicine), where professional rank seems to be more significant than age in determining the role of scientists in research as seen through their authorship patterns, while age has a more significant effect in the least collaboration-intensive field (Natural Resources). 相似文献
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Hernández-Martín Estela Calle Fernando Dueñas Juan C. Holgado Miguel Gómez-Pérez Asunción 《Scientometrics》2019,120(3):1059-1089
Scientometrics - This article studies the participation of women in doctorate, lecturing and research, innovation, and management activities at Universidad Politécnica de Madrid (UPM), the... 相似文献
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Li Zelong Khurshid Adnan Rauf Abdur Qayyum Sadia Calin Adrian Cantemir Iancu Laura Andreea Wang Xinyu 《Clean Technologies and Environmental Policy》2023,25(1):195-209
Clean Technologies and Environmental Policy - The United Nations 2030 agenda states various sustainable development goals (SDGs) to counter climate change affecting individuals' health and... 相似文献
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Scientometrics - Since 1978, alongside China’s rise as a leading country in science, technology and innovation (STI), the studies of the country’s STI have been emerging as a field... 相似文献
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Zhou Xuan Fan Shiyu Sun Hui Tang Liu Ma Feiwen 《Clean Technologies and Environmental Policy》2021,23(10):2827-2841
Clean Technologies and Environmental Policy - Hydropower is the most economically developed renewable energy source in China. In the twenty-first century, the era of clean and low-carbon... 相似文献
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As an adaptation to its new environment, universities have engaged in various organisational innovations and taken a more active role in the orientation of the researcher. The emerging institutional management imposes specific constraints and opportunities for researchers. Thus, the impact of institutional membership, notably on the different institutional policies, is increasingly a dominant force in academic working lives. However, some scholars have argued that the context of researchers remains an Ivory Tower situation, where academic working life is defined through the twin discourse of academic freedom and professional autonomy. This article analyses the activities of research faculty members funded by the Natural Sciences and Engineering Research Council of Canada, in comparison to the theories that contribute to the explanation of researchers?? behaviour. By using intra-class correlation, which is based on a multi-level analysis of the variance distribution, we find that the grouping effect is still small. In other words, despite the emerging constraints and opportunities determined by their institutional context, researchers still exist in an Ivory Tower, where the explanation of their behaviour is still a matter of individual differences. 相似文献
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This paper provides evidence on the mechanisms influencing the patent output of a sample of small and large, entrepreneurial and established biotechnology firms from the input of indirect knowledge acquired from capital expenditures and direct knowledge from in-house R&D. Statistical models of counts are used to analyse the relationship between patent applications and R&D investment and capital expenditures. It focuses on biotechnology in the period 2002–2007 and is based on a unique data set drawn from various sources including the EU Industrial R&D Investment Scoreboard, the European Patent Office (EPO), the US Patent and Trademark Office, and the World Intellectual Property Organisation. The statistical models employed in the paper are Poisson distribution generalisations with the actual distribution of patent counts fitting the negative binomial distribution and gamma distribution very well. Findings support the idea that capital expenditures—taken as equivalent to technical change embodied in new machinery and capital equipment—may also play a crucial role in the development of new patentable items from scientific companies. For EPO patents, this role appears even more important than that played by R&D investment. The overall picture emerging from our analysis of the determinants of patenting in biotechnology is that the innovation process involves a well balanced combination of inputs from both R&D and new machinery and capital equipment. 相似文献
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John T. Bruer 《Scientometrics》2010,83(3):751-764
This study uses author co-citation analysis to trace prospectively the development of the cognitive neuroscience of attention between 1980 and 2005 from its precursor disciplines: cognitive psychology, single cell neurophysiology, neuropsychology, and evoked potential research. The author set consists of 28 authors highly active in attentional research in the mid-1980s. PFNETS are used to present the co-citation networks. Authors are clustered via the single-link clustering intrinsic to the PFNET algorithm. By 1990 a distinct cognitive neuroscience specialty cluster emerges, dominated by authors engaged in brain imaging research. 相似文献
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Christopher J. Lortie Lonnie W. Aarssen Amber E. Budden Roosa Leimu 《Scientometrics》2013,94(2):675-682
Metrics of success or impact in academia may do more harm than good. To explore the value of citations, the reported efficacy of treatments in ecology and evolution from close to 1,500 publications was examined. If citation behavior is rationale, i.e. studies that successfully applied a treatment and detected greater biological effects are cited more frequently, then we predict that larger effect sizes increases study relative citation rates. This prediction was not supported. Citations are likely thus a poor proxy for the quantitative merit of a given treatment in ecology and evolutionary biology—unlike evidence-based medicine wherein the success of a drug or treatment on human health is one of the critical attributes. Impact factor of the journal is a broader metric, as one would expect, but it also unrelated to the mean effect sizes for the respective populations of publications. The interpretation by the authors of the treatment effects within each study differed depending on whether the hypothesis was supported or rejected. Significantly larger effect sizes were associated with rejection of a hypothesis. This suggests that only the most rigorous studies reporting negative results are published or that authors set a higher burden of proof in rejecting a hypothesis. The former is likely true to a major extent since only 29 % of the studies rejected the hypotheses tested. These findings indicate that the use of citations to identify important papers in this specific discipline—at least in terms of designing a new experiment or contrasting treatments—is of limited value. 相似文献
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Michael Thomas Ben Corry Tamsyn A. Hilder 《Small (Weinheim an der Bergstrasse, Germany)》2014,10(8):1453-1465
Nanopores have demonstrated an extraordinary ability to allow water molecules to pass through their interiors at rates far exceeding expectations based on continuum theory. Moreover, simulation studies suggest that particular nanoscale pores have the potential to discriminate between water and salts as well as to distinguish between a range of different ion types. Some of the unusual features of transport in these nanopores have been elucidated with molecular dynamics simulation, specifically the spontaneous filling and rapid transport of water, the rejection of ions and the selection between ions. The main focus of this review, however, is the physical mechanisms which act to produce such remarkable behaviour at this scale, drawing on the many studies that have been conducted in the last decade. Since molecular dynamics simulations allow the motion of individual atoms to be followed over time, they have the potential to provide fundamental insight into the reasons why transport in nanoscale pores differs from expectations based on macroscopic theory. Gaining an understanding of the mechanisms of transport in these tiny pores should guide future experiments in this area aimed at developing novel technologies and improving existing membrane separation techniques. 相似文献
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Nisbet EG 《Philosophical transactions. Series A, Mathematical, physical, and engineering sciences》2002,360(1793):581-607
Methane emissions from geological reservoirs may have played a major role in the sudden events terminating glaciation, both at the start of the B?lling/Aller?d and also at the end of the Younger Dryas. These reservoirs include Arctic methane hydrates and also methane hydrate stored in offshore marine sediments in tropical and temperate latitudes. Emissions from hydrate stores may have resonated with tropical wetland emissions, each reinforcing the other. Because methane is such a powerful greenhouse gas, much smaller emissions of methane, compared with carbon dioxide, are required in order to have the same short-term impact by climate forcing. The methane-linked hypothesis has much geological support from sea-floor evidence of emission. However, Greenland ice-core records have been interpreted as showing methane as a consequential factor, rather than the leader, of change. This interpretation can be challenged on the grounds that temperature gradients in Greenland ice record local changes and local timing of a step-like shift in weather fronts, while methane concentrations record changes on a hemispheric and global scale. There are large remaining hydrate reservoirs in the Arctic and in shelf sediments globally, and there is substantial risk of further emissions. 相似文献
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