scholarly journals INFLUENCE OF COLLABORATION ON THE IMPACT OF PUBLICATION AT DIFFERENT LEVELS OF AGGREGATION: analysis of Spanish research on Marine Science

PontodeAcesso ◽  
2012 ◽  
Vol 5 (3) ◽  
pp. 149
Author(s):  
Rodrigo Costas

This paper presents a bibliometric analysis of the scientific activity of Spain in Marine Science through the analysis of its publications in the Science Citation Index during the period 1994-2004. The evolution of collaboration over the period and the influence of different types of collaboration on the impact of research are studied. Spanish production accounts for 6,898 publications. An increment in the number of publications and in the impact of the publication journals over time is observed. Internationally-coauthored publications increase faster than those with national or with no collaboration at all and tend to be published in more prestigious journals and to receive a higher number of citations. The indicators “gain in impact factor” and “gain in citations” are used to measure the effects of different types of collaboration over the impact of the research for the main institutional sectors in the country, main research centres and most productive scientists. A positive effect of collaboration over the impact of research is observed, but as the aggregation level of analysis decreases this positive effect is less clear. In the case of individual scientists this good relationship between international collaboration and impact of publications is not always observed.

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 799
Author(s):  
Justyna Miedzianowska ◽  
Marcin Masłowski ◽  
Przemysław Rybiński ◽  
Krzysztof Strzelec

Increasingly, raw materials of natural origin are used as fillers in polymer composites. Such biocomposites have satisfactory properties. To ensure above-average functional properties, modifications of biofillers with other materials are also used. The presented research work aimed to produce and characterize elastomeric materials with a straw-based filler and four different types of montmorillonite. The main research goal was to obtain improved functional parameters of vulcanizates based on natural rubber. A series of composites filled with straw and certain types of modified and unmodified nano-clays in various ratios and amounts were prepared. Then, they were subjected to a series of tests to assess the impact of the hybrids used on the final product. It has been shown that the addition of optimal amounts of biofillers can, inter alia, increase the tensile strength of the composite, improve damping properties, extend the burning time of the material and affect the course of vulcanization or cross-linking density.


2015 ◽  
Vol 123 (3) ◽  
pp. 561-570 ◽  
Author(s):  
Christopher S. Lozano ◽  
Joseph Tam ◽  
Abhaya V. Kulkarni ◽  
Andres M. Lozano

OBJECT Recent works have assessed academic output across neurosurgical programs using various analyses of accumulated citations as a proxy for academic activity and productivity. These assessments have emphasized North American neurosurgical training centers and have largely excluded centers outside the United States. Because of the long tradition and level of academic activity in neurosurgery at the University of Toronto, the authors sought to compare that program's publication and citation metrics with those of established programs in the US as documented in the literature. So as to not rely on historical achievements that may be of less relevance, they focused on recent works, that is, those published in the most recent complete 5-year period. METHODS The authors sought to make their data comparable to existing published data from other programs. To this end, they compiled a list of published papers by neurosurgical faculty at the University of Toronto for the period from 2009 through 2013 using the Scopus database. Individual author names were disambiguated; the total numbers of papers and citations were compiled on a yearly basis. They computed a number of indices, including the ih(5)-index (i.e., the number of citations the papers received over a 5-year period), the summed h-index of the current faculty over time, and a number of secondary measures, including the ig(5), ie(5), and i10(5)-indices. They also determined the impact of individual authors in driving the results using Gini coefficients. To address the issue of author ambiguity, which can be problematic in multicenter bibliometric analyses, they have provided a source dataset used to determine the ih(5) index for the Toronto program. RESULTS The University of Toronto Neurosurgery Program had approximately 29 full-time surgically active faculty per year (not including nonneurosurgical faculty) in the 5-year period from 2009 to 2013. These faculty published a total of 1217 papers in these 5 years. The total number of citations from these papers was 13,434. The ih(5)-index at the University of Toronto was 50. CONCLUSIONS On the basis of comparison with published bibliometric data of US programs, the University of Toronto ranks first in terms of number of publications, number of citations, and ih(5)-index among neurosurgical programs in North America and most likely in the world.


2015 ◽  
Author(s):  
Isabelle Cook ◽  
Sam Grange ◽  
Adam Eyre-Walker

We have investigated the relationship between research group size and productivity in the life sciences in the United Kingdom using data from 398 principle investigators (PIs). We show that the number of publications increases linearly with group size, but that the slope is modest relative to the intercept, and that the relationship explains little of the variance in productivity. A comparison of the slope and intercept suggests that PIs contribute on average 5-times more productivity than an average group member and using multiple regression we estimate that post-doctoral researchers are approximately 3–times more productive than PhD students. We also find that the impact factor and the number of citations are both non-linearly related to group size such that there is a maximum. However, the relationships explain little of the variance and the curvatures are shallow so the impact factor and the number of citations do not greatly depend upon group size. The intercept is large relative to curvature suggesting that the PI is largely responsible for the impact factor and the number of citations from their group. Surprisingly we find this non-linear relationship for post-docs, but for PhD students we observe a slight but significant decrease in the impact factor. The results have important implications for the funding of research. Given a set number of Pis there is no evidence of diminishing returns in terms of the number of papers published and only a very weak cost to very large groups in terms of where those papers are published and the number of citations they receive. However, the results do suggest that it might be more productive to invest in new permanent members of faculty rather than additional post-docs and PhD students.


Pedagogika ◽  
2016 ◽  
Vol 66 (2) ◽  
Author(s):  
Dominik Dvořák ◽  
Jana Straková

Abstrakt: Reformy založené na zavádění tržních principů do vzdělávání zatím spíše zklamaly očekávání, že povedou k celkovému zlepšení vzdělávacích výsledků žáků. Mezinárodní šetření PISA 2012 tento poznatek rovněž potvrdilo. Avšak v případě České republiky byly publikovány výsledky uvádějící, že i po zohlednění socioekonomických a demografických rozdílů mezi žáky a dalších relevantních faktorů na úrovni škol dosahují lepších výsledků v matematice žáci v těch školách, které jsou vystaveny větší lokální konkurenci. Náš článek představuje kritickou revizi těchto výsledků. Vyšli jsme ze stejných datových souborů z šetření PISA a použili jsme dvouúrovňové modely, kde první úroveň byla žákovská a druhá školní. Pokud model (na rozdíl od postupu uplatněného autory šetření PISA) zohledňovat skutečnost, že ve vzorku jsou zastoupeny základní školy, víceletá gymnázia a střední školy, pak zdánlivý účinek konkurence mezi školami vymizel. Konkurence mezi školami jednoho typu tedy ani v České republice nevede k lepším znalostem a dovednostem žáků v matematice. Klíčová slova: volba školy, konkurence mezi školami, výsledky žáků, matematika, Česká republika, PISA.Klíčová slova: volba školy, soutěž mezi školami, výsledky žáků, matematika, Česká republika, PISAAbstract: Several studies have shown that market-based reforms of education, on average, do not improve the pupil performance across or within national school systems. The PISA 2012 survey found, however, that in the Czech Republic the schools that compete with other neibourghing schools for pupils tend to perform better in mathematics even after accounting for the socio-economic and demographic background of pupils and for relevant school characteristics (OECD, 2013). In our study, we re-evaluate this result. The impact of school variables on student achievement was studied using the PISA datasets and two-level models with pupils at the first level and schools at the second level. After accounting for different types of secondary schools in the Czech school sample, the apparent positive effect of school competition disappeared.Keywords: school choice, school competition, achivement, mathematics, Czech Republic, PISA


2019 ◽  
Vol 15 (1) ◽  
pp. 10-14 ◽  
Author(s):  
Mauro Giovanni Carta ◽  
Michela Atzeni ◽  
Alessandra Perra ◽  
Quirico Mela ◽  
Martina Piras ◽  
...  

Background: The use of bibliometric analysis to assess scientific productivity and impact is particularly relevant for EU funding programs. The objective of the present study is to assess the impact on scientific literature by focusing specifically on the cost-effectiveness of FP7 and NHI projects in the fields of AA and QoL, respectively. Methods: Twenty projects were randomly selected from the CORDIS database in accordance with the following criteria: funded by the FP7; accepted from 1st January 2007 to 31st December 2012; concluded by 31st August 2017; For each project selected, we determined: number of publications in Scopus and Google databases attributable to the project; number of papers published in Q1 quartile of the SCIMAGO rank; number of citations found in Scopus and Scholar Google; amount of funds allocated. Results: The study has confirmed the results of the previous one, namely that the number of publications and the number of citations per project on active ageing are similar in projects funded by the NHI in the United States and those funded by the FP7 in Europe. However, when it comes to cost-effectiveness, it results that European projects have a cost ten times higher than the Americans ones. Conclusion: Our study shows lower cost-effectiveness of FP7-European projects than the American-NIH on active aging. The results of this research, albeit with the limits already outlined, will have to be taken into consideration in the evaluative research of the future.


Author(s):  
M. B. Khrustalev ◽  
N. Yu. Turbina ◽  
A. A. Maksimova

Introduction. Currently, globalization and market economy have led to the necessary improving competitiveness of the universities. The parameters of academic efficiency along with reputation indicators become the main criteria for inclusion in international and domestic rankings and thus affect the financial well-being of the university.The objectiveof this study is to compare the indicators of scientific activity of the largest Russian medical universities and the foreign non-English speaking university that conducts training in medicine, according to data obtained from scientometric databases and to determine the prospects for including Russian medical universities into the leading international rankings.Material and methods.The publication activity of 9 largest Russian medical universities for 5 years was analyzed: the number of articles and the number of citations. For comparison, we used data from a similar number of employees of a foreign university that trains students in medicine, included in international rankings. The sources were the Scopus database, as well as international rankings: Times Higher Education, Academic Ranking of World Universities and QS World University Rankings.Results. Only two Russian medical universities are mentioned in the bottom lines (1000+) in the THE ranking and none of them fall into the QS WUR ranking. However, while maintaining the current trends of increasing the number of publications in Scopus, in the next 2–3 years there are prospects for inclusion in the THE ranking of «Pavlov First Saint Petersburg State Medical University» and «A. I. Yevdokimov Moscow State University of Medicine and Dentistry».Conclusion. Based on the analysis of publication activity of the largest medical universities in Russia, it can be noted that it is necessary to develop international scientific cooperation and develop strategies for improving self citation in universities, and also need to work more actively with graduates and their employers.


F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 30
Author(s):  
Saif Aldeen AlRyalat ◽  
Osama El Khatib ◽  
Ola Al-qawasmi ◽  
Hadeel Alkasrawi ◽  
Raneem al Zu’bi ◽  
...  

Background: Data sharing is now a mandatory prerequisite for several major funders and journals, where researchers are obligated to deposit the data resulting from their studies in an openly accessible repository. Biomedical open data are now widely available in almost all disciplines, where researchers can freely access and reuse these data in new studies. We aim to study the BioLINCC datasets, number of publications that used BioLINCC open access data, and the impact of these publications through the citations they received. Methods: As of July 2019, there was a total of 194 datasets stored in BioLINCC repository and accessible through their portal. We requested the full list of publications that used these datasets from BioLINCC, and we also performed a supplementary PubMed search for other publications. We used Web of Science (WoS) to analyze the characteristics of publications and the citations they received. Results: 1,086 published articles used data from BioLINCC repository for 79 (40.72%) datasets, where 115 (59.28%) datasets didn’t have any publications associated with it. Of the total publications, 987 (90.88%) articles were WoS indexed. The number of publications has steadily increased since 2002 and peaked in 2018 with a total number of 138 publications on that year. The 987 open data publications received a total of 34,181 citations up to 1st October 2019. The average citation per item for the open data publications was 34.63. The total number of citations received by open data publications per year has increased from only 2 citations in 2002, peaking in 2018 with 2361 citations. Conclusion: Majority of BioLINCC datasets were not used in secondary publications. Despite that, the datasets used for secondary publications yielded publications in WoS indexed journals and are receiving an increasing number of citations.


2017 ◽  
Vol 9 (1) ◽  
pp. 48-61 ◽  
Author(s):  
Yuxin Wang ◽  
Qing Liu ◽  
Yanrui Wu ◽  
Huaqing Wu

Purpose The purpose of this paper is to investigate how different types of the village relationship influence different types of public goods provision in rural China. Design/methodology/approach The three components (clan-based relationship, neighborhood relationship and external relationship) were derived by employing factor analysis. The simultaneous discrete choice model was used to estimate the influence of these components on public goods provision, using the survey data from the China Household Income Project conducted in 2007. Findings The findings indicate that considering different components of village relationship allows for a better understanding of the public good provision. The results indicate that the neighborhood relationship has a significantly positive effect on rural public goods provision, particularly on water conservancy and irrigation, while the external relationship has a significantly positive effect on all types of public goods. Practical implications Local public goods provision is the core of the new rural construction in China. These findings imply that relationship in villages plays a vital role in the provision of public goods and is necessary in the construction of the new harmonious countryside in China. The results also have implications for rural public goods provision in other developing countries. Originality/value To the best of our knowledge, this is the first study to quantitatively model the impact of different relationships on public goods provision at the rural level. A consideration of the different components in village relationship allows for a more precise understanding of the pubic goods provision in the village.


2015 ◽  
Author(s):  
Isabelle Cook ◽  
Sam Grange ◽  
Adam Eyre-Walker

We have investigated the relationship between research group size and productivity in the life sciences in the United Kingdom using data from 398 principle investigators (PIs). We show that the number of publications increases linearly with group size, but that the slope is modest relative to the intercept, and that the relationship explains little of the variance in productivity. A comparison of the slope and intercept suggests that PIs contribute on average 5-times more productivity than an average group member and using multiple regression we estimate that post-doctoral researchers are approximately 3–times more productive than PhD students. We also find that the impact factor and the number of citations are both non-linearly related to group size such that there is a maximum. However, the relationships explain little of the variance and the curvatures are shallow so the impact factor and the number of citations do not greatly depend upon group size. The intercept is large relative to curvature suggesting that the PI is largely responsible for the impact factor and the number of citations from their group. Surprisingly we find this non-linear relationship for post-docs, but for PhD students we observe a slight but significant decrease in the impact factor. The results have important implications for the funding of research. Given a set number of Pis there is no evidence of diminishing returns in terms of the number of papers published and only a very weak cost to very large groups in terms of where those papers are published and the number of citations they receive. However, the results do suggest that it might be more productive to invest in new permanent members of faculty rather than additional post-docs and PhD students.


Author(s):  
Harpreet Kaur ◽  
Gurusharan Kaur

Micro finance is an essential pre-condition for sustainable economic development. The process of provision of financial services has been gaining importance for the overall economic development of the country. Micro finance became alternative source of loans to the poor people with the goal of creating financial inclusion and equality. Informal sector constitute an important part of the economy. Therefore the study was conducted to investigate the impact of Micro Finance in Zambia, the case of residents of Chipata district. The study was guided by the following research objectives: to determine the level of awareness on micro finance products, to assess the level of development of MFIs within Chipata, to assess the impacts of microfinance on Chipata District residents, women in particular and to assess challenges Chipata residents face in accessing credit. The study came up with the several results, among the few are that MFIs have a positive effect on the people of Zambia as MFIs increase the household income levels. It has been noted that, access to credit which is a major challenge in the SME sector has been reduced to a large extent through the operations of MFIs. It was also concluded that MFIs have contributed largely in the area of mobilizing savings through their saving schemes that make saving more accessible, less costly and ready to receive little amounts. The practice helps to improve capitalization as most of these saving are ploughed back in their businesses.


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