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本研究從書目計量學角度探究光觸媒文獻發展狀況，研究樣本檢索自SCIE（Science Citation Index Expanded）資料庫，蒐集年代從1970至2003年，共34年得7,141筆資料。研究項目包括：一、文獻成長情形；二、文獻類型、出版國與語文分佈；三、機構生產力分析；四、布萊德福定律之驗證；五、核心期刊研究；六、期刊影響因素之探討。研究結果歸納如下：光觸媒文獻至2003年仍持續成長，其模式為指數成長；文獻類型以研究性質文章為主；英文是最主要的寫作語言；機構生產力以日本排名第一；利用布萊德福－齊夫定律求得15種核心期刊；以JCR（Journal Citation Reports）評鑑期刊影響力大小，其分佈與布萊德福分區相近。The purpose of this study is to explore the characteristics of photocatalysis literature based on the theoretical perspectives of the bibliometrics, such as literature growth, document type and language, author affiliation productivity and journal productivity. The distribution of journal articles and core journals were examined by Bradford’s law, Bradford-Zipf’s law and the impact factor of ISI’s Journal Citation Reports (JCR). A total of 7141 bibliographic records, from 1970 to 2003, were retrieved from Science Citation Index Expended (SCIE) database. The results of this study reveal that 1. the literature growth rate is in a steadily up-growing trend recently. Moreover, the overall growth is similar to exponential model; 2. research article is the major type of publication. Research and review papers account for 92.5% of total literature; 3. English is the most frequently used language and Japan is the most productive country; 4. zone analysis and graphical formulation from Bradford’s law of scattering are reexamined and it is found to be inapplicable to journal productivity distribution; 5. the Bradford’s law and Bradford-Zipf’s law are applied and identified 13 and 15 core journals, respectively; 6. based upon the impact factor from JCR, the average impact factor for journals of the first zone and second zone is higher than journals of the other zones.

The aim of this study is to examine the time lag between the receipt of paper and its subsequent publication in the journal, the structure of the IPR literature, type of documents cited by the papers and identification of core journals in the field of IPR using Bradford's law. The study also identifies the place of origin of the cited journals and the disciplines with which these dealt. The analysis indicates that the average time lag between receipt and its consequent publication is about 4 months. Highest number of papers is published in the sub-discipline of intellectual property rights and its related aspects. Nearly 40 journals constitute the core of the cited journals. Most of the cited journals are published from USA, UK and India. It is observed that most of the cited journals belong to the disciplines of law, economics and management. [ABSTRACT FROM AUTHOR]

This study analyses the Indian research output in rabies, one of the most vulnerable zoonotic disease in India. The data for this study was downloaded from PubMed database for the period 1950-2014. A total number of 495 records covered in the database during the study period. The literature growth, India's contribution compared to the world literature output, prolific authors and their collaborative pattern, journal distribution, most productive institution and geographical distribution are discussed in the study. ' Journal of the Association of Physicians of India (JAPI)' is the 1st in the rank list and the journal published 46 (9.29 %) papers during the study period. The study shows that ' Madhusudana SN' is the most productive author producing 57 (11.51 %) contributions. The study also shows the collaborative nature in rabies research in India. ' National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore' is the most productive institution in the field. The Bradford law of scattering does not apply to rabies research in India. We suggest that the agencies those involved in zoonotic disease research, shall give priority to the rabies research. Considering the disease burden and increasing trend of mortality rate, the state and the central Governments shall carry out the joint research projects in this field. [ABSTRACT FROM AUTHOR]

In previous research (Chiang and Yang in Appl Econ 44(22):2827-2839, ), they has been studied to analyze the growth of publication, the subject types, and the journal distributions, etc. for financial risk literatures through the perspective of bibliometrics from 1991 to 2009. From the growing incidence of financial risk Since 2008 year, The event of financial risk greater more impact on the economy, for example, the Lehman Brothers Holdings Inc bankruptcy, the Greek debt crisis, the Latin American sovereign Crisis etc. In this study, we extended previous research up to 2013 and investigates the features of financial crisis literature based on bibliometric methods from: (1) TP: the number of 'total articles' of an institution or a country; (2) SP: the number of 'single country article' (3) CP: the number of 'internationally collaborative article' (4) FP: the number of 'first author article', and (5) RP: the number of 'corresponding author article'. The distribution of journal articles was also examined utilizing Bradford's law and Citation model (Chiu and Ho in Scientometrics 63(1):3-23, ). Data were based on the Science Social Citation Index, from the Institute of Scientific Information Web of Science database. A total of 8485 entries from 1926 to 2013 were collected. This paper implemented the following publication type and language, characteristics of articles outputs, country, subject categories and journals, and the frequency of title-words and keywords used. Meanwhile, the analysis indicated the most relevant disciplines for financial crisis subject category provided by economics, business finance, and political science. [ABSTRACT FROM AUTHOR]

Museum studies, is the study of museums, museum curation, and how and why museums developed into their institutional role in education and culture through scientific, social, political and other related forces. The purpose of this study is to shed light on the application trends of the international literature related to museum studies on the SCIE, SSCI, and AHCI databases between 1995 and 2014 using a bibliometric technique and citation analysis. The results of this study reveal that influences of the literature related to museum studies on other subject areas continue to expand. Considering the publication of major countries, subject areas, journal and institutions, the results also discussed that the future trend through analysing most cited articles. Moreover, 12 core journal lists are identified by Bradford's law. [ABSTRACT FROM AUTHOR]

The understanding of Corporate Governance (CG) excels both in organizational structures as well as in academic. A better understanding of this field establishes the objective of this study to identify if knowledge in Corporate Governance in Brazil is legitimized. To meet the aims of this study, there was a descriptive research with a quantitative approach, using the technique of data mining. Data analysis enabled us to identify that the works of the authors Ricardo Pereira Hall, Alexandre Di Miceli da Silveira, Rubens Famá and Richard Saito are legitimized. Of the ten researchers considered legitimate six are international. The search identified 193 articles written by 359 authors, with a distribution close to the Lotka's Law, which makes it possible to identify a small group of authors with many publications. It was found that 55 magazines published articles focused on CG and position themselves as important instruments of legitimation of this scientific field when it comes to knowledge. [ABSTRACT FROM AUTHOR]

Purpose ? This study aims to make recommendations for library collection development because undergraduates expect to satisfy their information need for research activities through library collection. Therefore librarian should assess whether the library is adequately responding their research demands. This can be answered by analyzing citations in the dissertations. Design/methodology/approach ? The study analyzed 8,224 citations from 204 undergraduate dissertations submitted to the Faculty of Agriculture, University of Peradeniya, Sri Lanka, in 2012. The most cited format was determined. Bradford?s law was applied to prepare a ranked list of journals. Accessibility of each core journals was observed and recommendations were made for collection development. Findings ? Journals were the most cited format. Data sets were fit with either the verbal formula or mathematical formula of the Bradford?s law. Core journals were determined. Core journals were accessible via number of ways. Some journals are subscribed by the Agriculture or via databases through UGC consortia (through University of Peradeniya?s library network) or open access journals. There are several journals in which the free access is available through Sri Lanka Journals OnLine. Based on the results, recommendations were made for collection development. Originality/value ? The paper provides useful insight for collection development for research demand, Agriculture Library, University of Peradeniya, Sri Lanka. [ABSTRACT FROM AUTHOR]

Analyse articles in SRELS journal of information management published during the years 2004-2013 and to study the key dimensions of its publication trends. For this study 10 volumes containing 48 issues have been taken up for evaluation. Necessary bibliometric measures are applied to analyse different publication parameters. In all 499 articles are published with an average 49 articles each year. The collaborative measures are calculated as per Ajiferuke et al (0.35), Lawani (2.28) and Subramanyam (0.65). The average author per article is 1.83 for 499 articles. Lotka's law is tested and conforms to a value of n=2.27. There are 6224 citations found appended to 499 articles during the period 2004-2013. Journals (44.49%) are the top form of source used by authors followed by books (22.51%) and web pages (15.60%). Ranked list of prolific authors and ranked list of journals is prepared and presented in respective tables. Khaiser Nikam and MP Satija have topped the ranked list of prolific authors with 11 articles each. SRELS Journal of Information Management topped the ranked list of journals with 197 (7.11%) citations. Among different countries contributing to this journal, authors from India (94.75%) have made maximum contributions. Authors from Karnataka (43.59%) have contributed majority of articles among Indian States. Bradford's Law of Scattering is verified through Leimkuhler model and found fitting the data. [ABSTRACT FROM AUTHOR]

Purpose: Bradford's law describes the number of core journals in a given field or subject and has recently been applied to neurosurgery. The objective of this study was to use currently accepted formulations of Bradford's law to identify core journals of pediatric neurosurgery. An additional analysis was completed to compare regional dependence on citation density among North American and European neurosurgeons. Methods: All original research publications from 2009 to 2013 were analyzed for the 25 top publishing pediatric neurosurgeons in North America and Europe, which were sampled to construct regional citation databases of all journal references. Regional differences were compared with each database. Egghe's formulation and the verbal formulation of Bradford's law were applied to create specific citation density zones and identify the core journals. Results: Regional comparison demonstrated a preference for the Journal of Neurosurgery and Child's Nervous System, respectively, but four of the top five journals were common to both groups. Applying the verbal formulation of Bradford's law to the North American citation database, a pattern of citation density was identified across the first three zones. Journals residing in the most highly cited first zone are presented as the core journals. Conclusion: Bradford's law can be applied to identify the core journals of neurosurgical subspecialties. While regional differences exist between the most highly cited and most frequently published in journals among North American and European pediatric neurosurgeons, there is commonality between the top five core journals in both groups. [ABSTRACT FROM AUTHOR]

This study analyses the Indian contributions of research papers related to Green chemistry was undertaken from Web of Science Databases has been used to retrieve the data for 15 years (1999-2013) by the searching the keyword "Green chemistry". Most of the researchers preferred to publish their research results in 620 journal articles. The authorship trend shows that, out of total 698 research literatures published, 97% of them or published under the joint author of publications in Green Chemistry research output. Multi-authored papers constitute majority of the contributions and degree of collaboration is 0.94. It is observed that author productivity is not in agreement with Lotka's law. This shows that team research is prevalent in the area of Green chemistry. Bradford's distribution the relationship between the zone is 1: a: a², while the relationship in each zone of the present study is 3:6:239 which does not fit into Bradford's distribution. It is observed the Bradford's distribution the relationship between the zone is 1: a: a², while the relationship in each zone of the present study is 3:6:239 which does not fit into Bradford's distribution. This study also identified to analyses coverage growth rates, Growth rate of production of literature areas of research concentration, Relative growth rate and doubling time, Geographical distribution of the literature and citation analysis is also noted. [ABSTRACT FROM AUTHOR]

Bradford's law is about scattering of literature in different information sources on a narrow subject. The present study serves as a test of the two formulations of Bradford's law, verbal and graphical, using 137120 articles published on Human-computer interaction (HCI) research in the journals index in Science Citation Index-Expanded during 1987-2011. The data is divided into five five-year spans so that comparisons can be made between the percentage errors for each five-year period. List of the core journals is also prepared for all the five blocks of five-year period. Number of journals and their titles in the core group indicates continuous change in focus in HCI research from one five-year block to the next. In addition, the applicability of Leimkuhler model was also tested with the present data. Neither the verbal nor the graphical formulation provides results that are consistent with the practical situation. [ABSTRACT FROM AUTHOR]

Sambalpur Univesity (SU) was started functioning from 1st January, 1967 in the Odisha State. The university imparting study and research through 27 post-graduate departments in disciplines of Science, Humanities, Business Administration, Social Sciences, Law and Commerce. The present study aims to study the research performance of SU's publications that have been indexed in Scopus during 2008 to 2012. The study also identifies the annual growth of university publication, authorship pattern, author productivity, degree of collaboration, length of paper published, most prolific contributor, prolific institution/organization, geographical distribution etc. Lotka's law of scientific productivity was used to determine the author's productivity and Bradford's is law used to determine scattering of literature in the publication pattern of the university during the period under study. [ABSTRACT FROM AUTHOR]

At present spacecraft propulsion is a dynamic area of research in which majority of research work is being done. Thomson Reuters Web of Knowledge is a premier research platform, helping to find, analyze, and share information in the sciences, social sciences, arts, and humanities. The data for the present analysis has been retrieved for a period of 14 years during 1999 to 2012 from this database. This study aims to analyse the Indian contribution in the subject area. The study also analyses year-wise, language-wise, document type-wise distribution and also the country-wise analysis which provides the percentage of Indian share to this subject. The analysis also includes institution-wise categorization; Degree of Collaboration and also verifies the fitness of Bradford's Law of Scattering. [ABSTRACT FROM AUTHOR]

Background and Aim: Scientific journals are the most major tools in disseminating research findings. With the increasing number and price of scientific journals, libraries need to select journals. Citation analysis is a practical method in identifying the best titles to be subscribed. This study was to identify core journals in the field of dentistry using citation analysis. Materials and Methods: Two hundered and seventy six documents including dentistry theses (241 titles) and faculty papers (35 titles) indexed in Science Citation Index (SCIE) were selected and their references were extracted and evaluated using citation analysis methods. The distribution frequency of journals confirmed the Bradford’s Law of Scattering representing core dentistry journals. Results: Eleven thousand twenty three references were totally extracted. Average reference per theses and papers was 39/25 and 44/74, respectively. English journals and books were the most frequent referred documents having 95% of total references approximately. The most updated references were in English dated during 2001-2005 and 2006-2010. Using the Bradford’s Law, five journals were introduced as core dentistry journals. Conclusion: Selecting and subscribing core journals leads into cost-effectiveness in libraries and plays an important role in meeting user’s needs. While having many challenges in accessing scientific resources, core journals selection and subscription is an intelligent action resulting in effective use of financial resources. [ABSTRACT FROM AUTHOR]

The search for scientific literature in scientific information systems is a discipline at the intersection between information retrieval and digital libraries. Recent user studies show two typical weaknesses of the classical IR model: ranking of retrieved and maybe relevant documents and the language problem during the query formulation phase. At the same time traditional retrieval systems that rely primarily on textual document and query features are stagnating for years, as it could be observed in IR evaluation campaigns such as TREC or CLEF. Therefore alternative approaches to surpass these two problem fields are needed. Recent developments in the area of applied informetrics show very promising effects by using long-known informetric and bibliometric methods like the analysis of power-law distributions described by Lotka's, Zipf's or Bradford's laws. This contribution will concentrate on the description of the different approaches in digital libraries, information retrieval, and informetrics to give a broad overview on current methods in applied informetries. This article contains: 1. Introduction 2. Digital Libraries 3. User Estimation of Relevance and Computer-Generated Ranking 4. Evaluation of Information Retrieval Systems 5. Informetries 6. Discussion [ABSTRACT FROM AUTHOR]

The foundation of every research project is a comprehensive literature review. The search for scientific literature in information systems is a discipline at the intersection of information retrieval and digital libraries; recent user studies in both fields show two typical weaknesses of the classical IR approach: ranking of retrieved and maybe relevant documents and the language problem during the query formulation phase. At the same time the performance of traditional retrieval systems that rely primarily on textual document and query features have been stagnating for years, as could be observed in IR evaluation campaigns such as TREC or CLEF. Therefore alternative approaches to surpass these two problem fields are needed. Recent developments in the area of applied informetrics show very promising effects by using long-known informetric and bibliometric methods like the analysis of power-law distributions described by Lotka's, Zipf's or Bradford's laws, or the application of co-occurrences analysis for entities like authors, journals or references of scientific literature. This work will concentrate on the description of the open problems and the current approaches to surpass these by using applied informetrics methodologies. [ABSTRACT FROM AUTHOR]

The aim of this research is to determine the core journals in Hamadan University of medical sciences with Bradford's law of scattering. Survey method, bibliometrics and Bradford's law are used in this research. Research population consists of all subscribed journals of Hamadan University of medical sciences in 2004-006. Research results show that 109 journals (74.7 percent of all journals) were used and 37 journals (25.3 percent of all journals) were not used in the research period. Journals were used 984 times in research period. Average of usage rate of each journal title was 6.74 times. 13 journal titles were to determine as core journals. These core journals were used 337 times (34.2 percent of all usages) in research period. 72.3 percent of users believe that the use of journals response to their information needs a great deal.

Purpose- The present study is a bibliometric analysis of research papers of Utkal University published in various research journals of repute which were indexed in Scopus (officially known as Sciverse Scopus) during 2008 to 2012. It also identifies the annual growth of university publication, authorship pattern, author productivity, degree of collaboration, length of paper published, most prolific contributor, prolific institution/ organization, geographical distribution etc. Design/ methodology/ approach- For information retrieval “Utkal University” and “India” were the keywords used as affiliation and “2008” to “2012” selected as the time span of the study, further, the result was refined only to “articles”. Finally, 447 research papers in different disciplines of science and technology retrieved and matched with Utkal University as “author’s affiliation”. The papers were analyzed according to their year-wise publication, authorship pattern, length of paper published, geographical distribution of papers etc., statistical techniques such as Lotka’s Inverse Square Law was used to identify author’s productivity and Bradford’s law used to determine scattering of literature in the publication pattern of the university during the period under study. Findings- International Journal of Earth Sciences and Engineering, Prof. P. K. Panda and Pharmacology, Toxicology and Pharmaceutics were the most favoured journal, contributor and research area respectively during the period under study. The study also revealed that, out of 1702 contributor only 680 were affiliated to Utkal University with 1.53 average authors per paper and 0.66 productivity per author. Research limitations/ implication- The present study has limitation by geographical area i.e. it covers only Utkal University and by time i.e. it covers only the research papers which were indexed during 2008 to 2012. Originality/ value- The paper is the result of an original bibliometric analysis of the research papers of Utkal University which were indexed in Sciverse Scopus during 2008 to 2012. [ABSTRACT FROM AUTHOR]

This paper reports on a scientometric study of 834 articles on Carbon nanotube research in India spanning over the years 1999 to 2012 downloaded from Web of Science. The study analyses literature growth trends, which shows an initiation of potential growth of research in this subject since 2008. It also examines collaborations with different countries. The authorship pattern, document types involved and active Indian institutions co-coordinating research in this subject have also been studied. Bradford law of scattering was applied to identify the core journals and Lotka's law to study the authors' productivity pattern. [ABSTRACT FROM AUTHOR]

Objective: Citation analysis is a bibliometric method used for the calculation of the mean number of citations and detection of highly cited references, frequency distribution of citations in different languages, update rate, efficacy of resources and number of core journals of a scientific domain. This process elucidates the information needs of researchers in a specific realm of science and enhances the knowledge of the authorities and librarians to provide efficient information sources and use the budget for providing a rich collection of scientific materials. This study aimed to perform a citation analysis on dental journals. Methods: A checklist was prepared including the type of cited material (article, book, thesis, etc.), publication year, language, type of access (consortium, free, none) and if accessible through the consortium, name of the database through which the article can be accessed. Data were analyzed using SPSS software. Using Bradford's law of dispersal of publications, the core journals in the field of dentistry were specified. Results: The authorities must consider the core journals in each scientific domain when making a decision on purchasing subscription or extending a contract with databases in order to be more successful in obviating the information needs of researchers. Conclusion: Authorities have to consider the core journals in each field when deciding on purchasing subscription or extending the contract with databases in order to be more successful in obviating the scientific needs of researchers. [ABSTRACT FROM AUTHOR]

The emergence of the nanomaterials in the growing innovative technologies stimulates to do an analysis on the research work on nanomaterials by means of Scientometric techniques. The research work has been conducted by means of the selection of database of sample of 10 years from 2003 to 2010 which reveals that the total no. publication is 16958, along with the total Global Citation Score of 208085 and 9969 as total Local Citation Score. It was proved that the literatures on nanomaterials published in 11 different documents and that too in 17 different languages throughout the world. The Chi-square test proves that the significant error value is lesser than the critical value which is a proven possibility to predict the future trend of the no. of publications. The different types of publication proves that the journal article alone may no longer stand as a mark of the research output and as well as for citations. English language research work tends to be at the first place among the other language publications. The authorship pattern proves that the multi authored papers plays a dominant role in the research publication. Bradford's Law has been utilized to find out the core journals which produced more articles. A suggestion has been given through this article to the global research society to enhance the scientists with exclusive opportunities to do more and more research on nanomaterials towards the betterment of the society. [ABSTRACT FROM AUTHOR]

This study primarily aims to reveal the worldwide patterns of authors' information scattering through illustrating the possible differences among authors based on subject, country, geographic region, institution, economic and scientific level factors. Second, changes in patterns of information scattering during the past 21 years are checked. Finally, a hypothesis aimed at demonstrating a probable relationship among the three research domains including information scattering, scholarly information-seeking behavior and scholarly journal usage is presented. 176,943 authors, who have more than ten papers in WoS from 1990 to 2010 were examined. The findings revealed that patterns of information scattering have changed during the past 21 years, and the number of journals in the core and middle zones has almost doubled. It was also found that authors tend to use a small number of journals to retrieve the majority of their required information, while a small amount of their information needs come from a wide variety of journals. However, with regard to patterns of information scattering, some differences exist among authors based on factors including institutions, countries and subject fields. In addition, this study shows that information-scattering patterns might be affected by scholars' information-seeking behaviors. A causal explanation of information scattering through scholarly information-seeking behavior has, without a doubt, the potential to provide practical solutions to better meet scholars' information needs and requirements. [ABSTRACT FROM AUTHOR]

The purpose of this research was to perform a bibliometric analysis of research journals containing scientific articles on the sport of rugby from 1922 to 2009. In this field 2057 articles were selected from major databases. The journals, authors and contents published were selected by taking into account the year of publication, thematic areas and modalities of rugby among other variables. A steady increase in production was found in the period considered, with a maximum of 174 articles published in 2007. The articles were written by an average of 2.5 authors and most of them (80.9%) only participated in one. The data showed a utility loss of 7.5% of the total items each year. The thematic areas and most influential journals on rugby had been identified. Finally, limited support has been found for attempting to adjust the bibliometric data by applying the laws of Lotka and Price with respect to the authors, and Bradford's law regarding scientific journals. [ABSTRACT FROM AUTHOR]

The present study is a bibliometric assessment of scientific research output of Sambalpur University during the 2007 to 2011. Which describes the growth, contribution and impact of research carried out by the faculty members, researchers or students of Sambalpur University. It also attempts to analyze the growth and development of research activity of the university as reflected in publications output covered by ISI Web of Science during the period under study. The study attempt to examines the content of papers published, including the annual average growth rate percent, authorship pattern, degree of collaboration, distribution of citations, organizational affiliation of papers. Subramanyam's formula is used to calculate degree of collaboration (C), Bradford's law used to determine scattering of literature in the publication pattern of the university. [ABSTRACT FROM AUTHOR]

Bibliographic details of 1076 research articles obtained from the annual reports of Central Tube Crops Research Institute (CTCRI ) were studied and it was found that the highest number of 169 papers was published in the year 2006 and the average number of publications per year was 97.82. Most of the contributions were multi authored (87.68%). The degree of collaboration of scientists of CTCRI was 0.87 and most of the articles published by the scientists were in the foreign journals (51.89%). Journal of Root Crop spublished by Indian Society of Root Crops tops the list with the highest number of articles 125 (39.30%). Applicability of Bradford's Law in the journal distribution pattern of the CTCRI scientists does not fit the Bradford's distribution pattern. [ABSTRACT FROM AUTHOR]

This paper attempts to highlight quantitatively and qualitatively the growth and development of world literature on materials science in terms of publication output and citations as per Web of Science (2006-2010). The objective of the study was to perform a scientometric analysis of all materials science research publications in the world. The parameters studied include growth of publications and citations, continent-wise distribution of publications and citations, country-wise distribution of publications, domain-wise distribution of publications and citations, publication efficiency index, distribution of publications and citations according to number of collaborating countries, variation of mean impact factor in materials science domains, identification of highly cited publications and highly preferred journals, quality of research output and application of Bradford's law. [ABSTRACT FROM AUTHOR]

Purpose – This paper aims to analyze the pertinence of Bradford's law applied to a set of electronic periodical collections in a given discipline. Design/methodology/approach – This study applied Bradford's law using citations rather than articles from a theme, thus ensuring the pertinence of the periodicals cited. Concentrating on citations in articles focuses on the stage following research rather than prior stages. The sources are actually used because they have been cited. Findings – The study demonstrates the data centrality phenomenon based on the leading periodicals in a theme. There was a relationship between the electronic periodical collection and the number of citations in the relevant journals in a theme. Originality/value – Although today's use of periodical titles is defined first and foremost by readership statistics, a more detailed analysis on the qualitative aspect can be an additional benefit in the negotiations conducted on a macro scale. Using Bradford's law could be envisaged as a complementary tool for a sustainable management of commercial electronic resources. [ABSTRACT FROM AUTHOR]

The purpose of this study is to determine the usage patterns of core journals by scholars, and to address the differences among various academic disciplines. Thus, the references of 11,230 corresponding authors for the past 35 years from the world's top five highly cited universities and institutions were analyzed. To build robust models of information scattering, we need a deeper understanding of this phenomenon. The results show that core journals usage is a social phenomenon, in exactly the same way as Bradford's law, Zipf's law and Lotka's law. The analysis of author references shows that if core scientific journals are arranged in order of decreasing productivity, then they could be divided into a small group of highly cited periodicals and a large group of minimally cited ones. Scholars may do browsing and similar information-seeking activities to form their core journals, and the findings may support Bates's hypothesis that Bradford's core zone is best searched by browsing. Bradford's law and relevant research may consequently help to solve many of the practical problems that practitioners of the profession face, particularly in collection development in libraries, and help users to gather highly scattered information. [ABSTRACT FROM AUTHOR]

Purpose – This paper aims to explore the effective ways to utilize current awareness services (CAS) for library and information science (LIS) professionals. It seeks to identify core journals for systems librarianship based on Bradford analysis.Design/methodology/approach – The study explored the methods for CAS based on literature review, followed by Bradford analysis of systems librarianship literature, which was conducted by the quantitative analysis approach.Findings – A core journal list for systems librarianship was built based on Bradford analysis. Three effective ways to utilize CAS by table of contents (TOCs) alerts were identified.Originality/value – To keep up to date with the latest literature in the field of interest, LIS professionals should take advantage of CAS. The study found three effective ways to utilize CAS by TOCs alerts and identified core journals for systems librarianship. The research can help LIS professionals efficiently navigate the information tsunami to obtain the reliable and relevant information that deserves their time and attention, and stay aware of new developments in their area of interest. [ABSTRACT FROM AUTHOR]

Bradford's law of scattering is based on the principle that every scientific field is related, however remotely, to everyother field. One hundred and forty one Ph.D. theses accepted in the field of psychology for the award of doctoral degreeswere analysed to identify the Bradford's zones and productivity of journals cited in the theses. The Productivity of citedjournals is measured after dividing the journals into four equal groups. The average rate of productivity of journals in thefirst group is 254 articles, whereas it has considerably gone down to 10.73 articles in the fourth group. The journaldistribution as per the Bradford's law reveals the ratio as 17:46:358 in psychology, dispersion of journal titles in psychologydoes not satisfy the Bradford's Law of Scattering. [ABSTRACT FROM AUTHOR]

This paper suggests interpreting Bradford's law in terms of a geometric progression; it introduces a constant, which allows simplifying the application of the law, and outlines the methodology for using the law to analyze the data related to various subject areas. [ABSTRACT FROM AUTHOR]