scholarly journals Shorter distances between papers over time are due to more cross-field references and increased citation rate to higher-impact papers

2019 ◽  
Vol 116 (44) ◽  
pp. 22094-22099 ◽  
Author(s):  
Attila Varga

The exponential increase in the number of scientific publications raises the question of whether the sciences are expanding into a fractured structure, making cross-field communication difficult. On the other hand, scientists may be motivated to learn extensively across fields to enhance their innovative capacity, and this may offset the negative effects of fragmentation. Through an investigation of the distances within and clustering of cross-sectional citation networks, this study presents evidence that fields of science become more integrated over time. The average citation distance between papers published in the same year decreased from ∼5.33 to 3.18 steps between 1950 and 2018. This observation is attributed to the growth of cross-field communication throughout the entire period as well as the growing importance of high-impact papers to bridge networks in the same year. Three empirical findings support this conclusion. First, distances decreased between almost all disciplines throughout the time period. Second, inequality in the number of citations received by papers increased, and, as a consequence, the shortest paths in the network depend more on high-impact papers later in the period. Third, the dispersion of connections between fields increased continually. Moreover, these changes did not entail a lower level of clustering of citations. Both within- and cross-field citations show a similar rate of slowly growing clustering values in all years. The latter findings suggest that domain-spanning scholarly communication is partly enabled by new fields that connect disciplines.

2021 ◽  
pp. 014556132110421
Author(s):  
Nilan G. Vaghjiani ◽  
Vatsal Lal ◽  
Nima Vahidi ◽  
Ali Ebadi ◽  
Matthew Carli ◽  
...  

Objective: Determine whether social media platforms can influence article impact as measured by citations. Methods: Cross-sectional study that analyzed articles published in the top 10 otolaryngology journals by Eigenfactor score in January 2015. Total accumulated Twitter mentions and citations were recorded in 2021. The main outcomes examined the difference in citations, tweets, article types, and author counts accumulated over a 5-year period for all articles that were either tweeted or nontweeted. Results: A total of 3094 articles were included for analysis. The average article was cited 11.2 ± 13.2 times and tweeted 2.10 ± 4.0 times. Sixty-four percent of the articles had at least one tweet. Over the study period, there was a statistically significant difference in mean number of citations between tweeted articles (12.1 ± 15.0) versus nontweeted articles (9.6 ± 10.5) citations, representing a 26% difference ( P < .001). Review articles had the highest mean citations (19.4 ± 23.4) while editorials had the lowest mean citations (2.8 ± 6.9). Tweets peaked in the year of publication, but citations continued to rise in the subsequent years. Tweeted articles’ peak citation rate change was +1.27 mean citations per year, compared to +0.99 mean citations per year in nontweeted articles. The mean author count in tweeted articles (5.40 ± 3.1) was not significantly different than the mean author count in nontweeted articles (5.19 ± 2.65, P = .0794). Conclusion: These data suggest a moderate correlation between tweets and article citations, but a clear difference in the number of citations in articles tweeted versus those with no tweets. Thus, dissemination of knowledge may be impacted by social medial platforms such as Twitter.


2018 ◽  
Vol 1 (1) ◽  
pp. 9-11
Author(s):  
Merlynda Ayu Rara Dini ◽  
I Gusti Ayu Widianti ◽  
I Nyoman Gede Wardana

Nowadays, obesity is an endemic health problem almost all countries in the world are facing. Obesity itself is not a contagious disease and it actually can be avoided. Obesity happens because there is an abnormal fats accumulation and this abnormality can bring various negative effects for the body and its health. Waist Hip Ration (WHR) method can be used to decide whether or not a person has obesity, especially central obesity. This research aims to find out the prevalence of obesity using WHR method on the students of Medical Education Program in Medical Faculty of Udayana University (PSPD FK Unud) class of 2014. This research is a descriptive research with cross sectional research design. This research was done to 217 students, 77 male students (35,5%) and 140 female students (64,5%). The obesity was measured by measuring waist size and hip circumference, the ratio then will be determined by dividing waist size with hip circumference. Normally, WHR on men is <0,9 and <0,8 on women. The result of this research reveals that 58 students (26,7%), consisting of 27 male students (12,5%) and 31 female students (14,5%) have central obesity.


2018 ◽  
Vol 47 (1) ◽  
pp. 206-211 ◽  
Author(s):  
Kamran Movassagi ◽  
Kyle N. Kunze ◽  
Edward C. Beck ◽  
Michael C. Fu ◽  
Shane J. Nho

Background: The citation rate of a research published article is an indicator of its quality and impact and contributes to the journal’s impact factor. Within the orthopaedic sports medicine literature, predictors of citation rates have not been previously described. Purpose: To identify characteristics of published articles that predict 5-year citation rates of studies in the orthopaedic sports medicine literature. Study Design: Cross-sectional study. Methods: Research articles published in The American Journal of Sports Medicine (AJSM), Arthroscopy: The Journal of Arthroscopic and Related Surgery, and Knee Surgery, Sports Traumatology, Arthroscopy (KSSTA) from 2012 were analyzed. Extracted characteristics of published articles included journal, author number, origin of study, first author degree, subject of study, study type, sample size, number of references and institutions, conflicts of interest, level of evidence, and 5-year citation rates. Multivariate logistic regression was used to determine predictors of greater than the mean number of citations at 5 years. Results: A total of 825 published articles ( AJSM, n = 313; Arthroscopy, n = 173; KSSTA, n = 339) were included in the final analysis. The mean number of 5-year citations was 23.2 (95% CI, 21.6-24.9; range, 1.0-260.0). AJSM had a significantly greater citation rate (32.4) than Arthroscopy (21.7) and KSSTA (15.2) ( P < .001 for both). Arthroscopy had a greater citation rate than KSSTA ( P = .008). Independent predictors of greater than the mean number of citations at 5 years were published articles in AJSM (odds ratio [OR], 5.17; 95% CI, 2.81-9.52; P < .0001), published articles of North American origin (OR, 1.79; 95% CI, 1.25-2.58; P = .002), and published articles regarding the hip (OR, 2.68; 95% CI, 1.08-6.67; P = .035). Conclusion: Published articles in AJSM, those from North America, and those examining the hip were independent predictors of greater citation rates at 5 years.


2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Aram Tirgar ◽  
Zahra Aghalari ◽  
Mika Sillanpää ◽  
Hans-Uwe Dahms

Abstract Background Due to the importance of water, the negative effects of water pollution on human health and the lack of proper knowledge of the state of research in this regard, the purpose of this study was to analyse scientific publications on water pollution in Iranian journals of environmental health. Methods This cross-sectional study was conducted using a scientometric method over a ten-year period (2008–2017) on articles published in five specialised environmental health journals emphasising the issue of water pollution. Data were collected through a researcher-based checklist using the International Committee of Medical Journal Editors (ICMJE) and the World Association of Medical Editors (WAME) recommendations. Data processing was done using descriptive statistics and VOSviewer software. Results A review of 1276 articles in specialised environmental health journals revealed that 33.7% of the articles were in the field of water. Physical and chemical factors in water were the main subjects of 21.4% of studies, and temperature and turbidity were the most important physical factors. Microbial agents in groundwater and surface water were the main subjects of 14.1% of the articles. The findings show that 55 of 430 articles related to water were written with contributions from 20 countries (including Iran), with the most contributions from researchers from Asia. Conclusions Good conditions do not exist to investigate the status of articles on water pollution in specialised environmental health journals in Iran over a ten-year period. Health policymakers should therefore provide mechanisms to encourage national researchers, especially environmental health professionals, by setting national research priorities on quality and water pollution to conduct studies in this regard.


Antibiotics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1412
Author(s):  
Pilar Valderrama ◽  
Pilar Baca ◽  
Carmen Solana ◽  
Carmen María Ferrer-Luque

The relative citation rate (RCR) is a normalized article-level metric useful to assess the impact of research articles. The objective of this bibliometric study is to identify and analyze, in root canal disinfection, the 100 articles having the highest RCRs in the period 1990–2019, then compare them with the top 100 articles most cited. A cross-sectional study was performed, and the search strategy ((Disinfection AND root canal) AND ((“1990/01/01”[Date-Publication]: “2019/12/31”[Date-Publication]))) relied on PubMed (n = 4294 documents), and article data were downloaded from the iCite database. The 100 articles with the highest RCRs and the top 100 cited were selected and evaluated in bibliometric terms. Among the 100 articles with the highest RCRs, there were no differences in the three decades for RCRs values, but there were in citations, being 2000–2009 the most cited. The USA was the predominant country (n = 30), followed by Brazil (n = 14). The most frequent study designs were reviews (n = 27) and in vitro (n = 25) and ex vivo (n = 24) studies. All subfields were well represented, although they varied over time. In 2010–2019, regenerative procedures and irrigation/disinfection techniques were predominant. Considering the RCR’s top 100 articles, 76 were common with the 100 most cited articles. Using the RCR metric allowed us to identify influential articles in root canal disinfection, a research field with topics of significance that fluctuate over time. Compared to citations, RCR reduces the time from publication to detection of its importance for the readership and could be a valid alternative to citation counts.


2021 ◽  
Vol 4 (3) ◽  
pp. p1
Author(s):  
William G. Johnson ◽  
Perry M. Gee ◽  
Lesly A. Kelly ◽  
Richard J. Butler

To measure nurses’ rankings of their electronic medical records (EMRs) on their job satisfaction over time, a retrospective analysis of a set of cross sectional data from a survey conducted by the United States’ California Registered Nursing Board in 2008, 2010, 2012, 2014, and 2016. Approximately 4,500 nurses ranked the usefulness of their EMRs in each of the five years.The EMR rankings increased steadily between 2008 and 2016 but the changes are small and the rates of change are very slow, suggesting that the problems with EMRs have been difficult to solve. The results show EMRs have a large impact: a one category increase in EMR rankings increased job satisfaction by as much as or slightly more than one-third for hospital and non-hospital nurses.The size of the effects and their persistence over eight years imply a substantial loss from poorly designed EMRs, and one which could have been avoided had EMR designs more closely matched nurses’ day to day work. The reductions in job satisfaction and potential effects on burnout are losses to be added to the more widely measured losses in productivity and negative effects of EMRs on patient-provider relationships.


2017 ◽  
Vol 41 (S1) ◽  
pp. S437-S437
Author(s):  
R. Feki ◽  
R. Sellami ◽  
I. Feki ◽  
D. Trigui ◽  
H. Turki ◽  
...  

IntroductionAcne vulgaris is a common skin disease that affects the majority of adolescents. The physical changes of acne may have negative effects on the psychological structure of adolescents such as anxiety and depression. Alexithymia has been suggested to be an important symptom in psychodermatological patients.ObjectiveOur study aims to access depression in adolescents with A. vulgaris and to evaluate its relationship with alexithymia.MethodsThis is a descriptive cross-sectional study regarding 50 adolescents followed in the outpatient dermatology unit of Hédi Chaker University hospital in Sfax (Tunisia). To assess depression, we used a psychometric tool: Beck Depression Inventory (BDI). The Toronto Alexithymia Scale (TAS-20) was used to evaluate alexithymia. The severity of acne was evaluated with the Global Acne Evaluation (GEA) Scale.ResultsThe mean age of adolescents was 15 years 9 months. Almost all of adolescents was female (82%), and live in urban area.The severity of A. vulgaris was mild in 50%, moderate in 32% and severe in 18%.The prevalence of depression was 48%. Twenty-four percent of them have a major depression. Forty-six percent of patients scored positive for alexithymia.The occurrence of depression was significantly associated to alexithymia (P = 0.003).ConclusionThis study showed a positive correlation between alexithymia and depression.These results can be useful in treatment based on processing of emotional information and regulation of emotions.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2021 ◽  
Vol 4 (1-2) ◽  
pp. 63-73
Author(s):  
A. V. Glushanovskiy

Scientific reviews are a publications type, which is very important for the world scientific community. This article considers reviews positions in the world publication flow (within the database «Wed of Science Core Collection» (WoS CC) array) for six natural sciences research areas (physics, chemistry, mathematics, geology, biology, computer science) during the period 2010–2019 for the leading countries of the world and Russia. The article considers additionally this type documents citation specialties depending on the research area.By means of the WoS CC database, bibliometric parameters of publication flows of scientific reviews for the six mentioned research natural sciences areas were determined: the number of records, it’s percentage in the total publication flow, the place of Russian reviews in the world flow, the average citation rate, the proportion of not cited records, the period of active citation. The dynamics of changes for these parameters over time (2010–2019) is considered.The article establishes the following features of scientific reviews, as a specific publication type:the percentage of reviews in both the world and Russian information flow is relatively small, it significantly depends on the research area, but over time it increases for all research areas;the trends of changes for the Russian reviews flow over time and in all research areas, follows world trends;Russian reviews occupy places, in terms of quantity, from 6–9 to a place in the fifth ten in the world array of WoS CC documents (depending on the year and research area), but they show a large spread in average citation terms. Sometimes, Russian reviews average citation is approaching and even exceeds the world average citation for some years and some research areas (and sometimes significantly);the non-cited reviews publications share is significantly lower than even for articles (the most cited type of publications);the reviews active citation period reaches 9–10 years and is significantly longer than (from some publications opinion) for scientific publications in general.


2001 ◽  
pp. 13-17
Author(s):  
Serhii Viktorovych Svystunov

In the 21st century, the world became a sign of globalization: global conflicts, global disasters, global economy, global Internet, etc. The Polish researcher Casimir Zhigulsky defines globalization as a kind of process, that is, the target set of characteristic changes that develop over time and occur in the modern world. These changes in general are reduced to mutual rapprochement, reduction of distances, the rapid appearance of a large number of different connections, contacts, exchanges, and to increase the dependence of society in almost all spheres of his life from what is happening in other, often very remote regions of the world.


Author(s):  
Nham Phong Tuan ◽  
Nguyen Ngoc Quy ◽  
Nguyen Thi Thanh Huyen ◽  
Hong Tra My ◽  
Tran Nhu Phu

The objective of this study is to investigate the impact of seven factors causing academic stress on students of University of Economics and Business - Vietnam National University: Lack of leisure time, Academic performance, Fear of failure, Academic overload, Finances, Competition between students, Relationships with university faculty. Based on the results of a practical survey of 185 students who are attending any courses at the University of Economics and Business - Vietnam National University, the study assesses the impact of stress factors on students. The thesis focuses on clarifying the concept of "stress" and the stress level of students, while pointing out its negative effects on students. This study includes two cross-sectional questionnaire surveys. The first survey uses a set of 16 questions to assess students’ perceptions and attitudes based on an instrument to measure academic stress - Educational Stress Scale for Adolescents (ESSA). The second survey aims to test internal consistency, the robustness of the previously established 7-factor structure. Henceforth, the model was brought back and used qualitatively, combined with Cronbach’s Alpha measurement test and EFA discovery factor analysis. This study was conducted from October 2019 to December 2019. From these practical analyzes, several proposals were made for the society, the school and the students themselves.


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