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Journal Article

A bibliometric study on the worldwide research productivity of scientists in Elaeis guineensis Jacq. and Elaeis oleifera.

01 Jan 2012-Journal of Oil Palm Research (Malaysian Palm Oil Board (MPOB))-Vol. 24, pp 1459-1472
TL;DR: Overall, based on the number of publications indexed by both WoS and Scopus, the Asian region, represented by seven countries, are the dominant producers of publications in this field, of which Malaysia is in the number one position.
Abstract: This article has the general aim of assessing the worldwide research productivity of Elaeis guineensis Jacq. and Elaeis oleifera or more commonly known as oil palm, as reflected by the literature indexed in the Web of Science (WoS) and Scopus databases. Specifically, the research aims to identify the most productive countries, institutions and authors in this area of research. It also investigates the subject characteristics of the publication and collaborative patterns among researchers and institutions. Overall, based on the number of publications indexed by both WoS and Scopus, the Asian region, represented by seven countries, are the dominant producers of publications in this field, of which Malaysia is in the number one position. Whereas, USA and some European countries, such as United Kingdom and France, are also leading in terms of publications and citations. Research in the areas of food science and technology (WoS) as well as agricultural and biological sciences (Scopus) account for the highest number of publications. High levels of collaboration among authors are evident among the top 10 most productive countries. This is a good indication of collaboration impact with increased research output. * Department of Library and Information Science, Faculty of Computer Science & Information Technology, University of Malaya, Lembah Pantai, 50603 Kuala Lumpur, Malaysia. E-mail: abrizah@um.edu.my 52.3 million tonnes for 2012/2013 (United States Department of Agriculture, 2012). It is thus by far the most widely-produced tropical oil, and constitutes almost 38% of total edible oil production worldwide (Basiron, 2011). From 1998 until late 2008, the international demand for palm oil had increased consistently, leading to alteration in the price of crude palm oil. Over 85% of the world’s crude palm oil comes from Malaysia and Indonesia (Timms, 2007), providing a considerable income to the national and regional governments of these two countries. Since 1970s, Malaysia has strengthened its position as the primary producer and exporter of world palm oil. In line with the very rapid expansion of planted area, Indonesia overtook Malaysia as the world’s biggest palm oil producer in 2007. The global production of palm oil has increased more than nine-fold in the past three decades, supplying the major markets including the European Union, China, Pakistan, India and Indonesia. Significant increases in production were also seen in countries INTRODUCTION Palm oil which is produced from the fruits of the oil palm (Elaeis guineensis Jacq. and Elaeis oleifera) is the second largest edible oil worldwide, after soyabean oil. The Elaeis guineensis Jacq. originated from Africa, whilst the Elaeis oleifera originated from South America. In the past decade, palm oil was the highest produce of the world’s production of oils and fats (Oil World, 2010), exceeding soyabean oil in terms of global production in 2005 (Cheng, 2010). Worldwide, palm oil production for season 2011/2012 was 50.3 million tonnes, increasing to
Citations
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01 Jan 2014
TL;DR: Singh et al. as mentioned in this paper proposed two key RD and higher mesocarp oleic acid composition for the oil palm industry to meet the highest projections for future vegetable oil requirements while minimising adverse environmental consequences.
Abstract: In recent years, the oil palm sector has witnessed a period of historically high prices with buoyant global demand and high levels of production driven largely by economic development in major Asian countries such as India and China. However, the oil palm sector is also confronted by many important challenges that require attention. Such challenges include fragmentation of the industry, stagnating yields, and an image problem that is largely due to the conversion of tropical rainforest and peatlands in a few regions in South-east Asia. The biological and managerial tools to surmount these challenges already exist but need more focussed application and political support. Potentially groundbreaking biological tools include the new molecular breeding technologies, such as those made possible by the recent publication of the oil palm genome sequence (Singh et al., 2013a, b). Two key RD and • higher mesocarp oleic acid composition – preferably over 65% w/w. The more focussed use of new and traditional technologies can also help to confront pest and disease problems, to redesign of crop architecture, and to facilitate yield and harvesting efficiency. In the mediumterm future, we can look forward to a considerable geographical extension of oil palm cultivation in a broad zone across the tropics of Africa, Asia and the Americas. If these and other measures can be taken, increased palm oil output could more than meet the highest projections for future vegetable oil requirements while minimising adverse environmental consequences. Improved oil palm varieties could also considerably increase the global market share for this highly productive tropical crop at the expense of some of the less efficient temperate oilseed crops.

129 citations


Cites background from "A bibliometric study on the worldwi..."

  • ...This is of considerable concern because Malaysia is the longest established centre for large-scale commercial oil palm production and is also the world leader in R&D into the biology and management of the crop (Abrizah, 2012)....

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01 Jan 2011

40 citations

Journal ArticleDOI
TL;DR: Examination of scientific outputs from Malaysia between 1982 and 2014 found a major increase in Malay participation in research, which has risen from 20 % of researchers in 1982–1984 to 65 % in 2012–2014, with corresponding declines in the percentages of Chinese and Indian authors.
Abstract: Malaysia has three main ethnic communities: Chinese, Indians and Malays. At independence in 1957, the Chinese dominated commercial life, and this led to ethnic tensions and finally riots. As a result in 1969 Malaysia introduced a "New Economic Policy" (NEP) to promote Malays in all areas of activity, and in particular to assist them to obtain basic and higher education. We examined the scientific outputs from Malaysia between 1982 and 2014 and classified the names of Malaysian researchers into one of these three groups and two others. There was a major increase in Malay participation in research, which has risen from 20 % of researchers in 1982---1984 to 65 % in 2012---2014, with corresponding declines in the percentages of Chinese and Indian authors, although their absolute numbers have increased because Malaysian scientific output has increased so rapidly in the last 10 years. The huge increase in Malay researchers contrasts with their presence in the Malaysian population which has remained stable at about 50 % since 1969.

22 citations


Cites background from "A bibliometric study on the worldwi..."

  • ...Several studies have looked at the research output of individual fields, such as engineering (Salmah 2015), computer science (Bakri and Willett 2011), toxicology (Zyoud et al. 2014), palm oil (Abrizah et al. 2012) and library & information science (Yazit and Zainab 2007)....

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  • ...2014), palm oil (Abrizah et al. 2012) and library & information science (Yazit and Zainab 2007)....

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Journal ArticleDOI
TL;DR: 4‐Methylanisole is identified as yet another volatile kairomone involved in highly selective attraction of potential pest florivorous cyclocephaline scarabs associated with economically exploitable palms and should be viewed as a key element in short‐term integrated management plans for the cultivation of the macauba palm in South America.
Abstract: The environmental unsustainability of African oil palm crops is a growing worldwide concern, and the macauba palm in tropical Southern America surges as the most viable substitute for the production of first‐generation biodiesel as a renewable fuel. Large‐scale cultivation of the macauba palm, however, is bound to suffer a major setback due to the fast emergence of a florivorous pest threat, Cyclocephala forsteri, a scarab beetle species that can severely reduce fruit yield. Like other congenerics, female and male C. forsteri are night‐foraging and driven in large numbers to macauba palm inflorescences by specific volatile organic compounds. In the present study, we assessed the kairomonal cues involved in this plant–florivore interaction and their potential application in selective pest management strategies. Headspace samples of the floral fragrance of macauba palms at our study site in Central Brazil were largely dominated by 4‐methylanisole (>97% relative amount), which along with the minor constituents 2‐isopropyl‐3‐methoxypyrazine and 2‐sec‐butyl‐3‐methoxypyrazine triggered electroantennographic responses from both female and male C. forsteri. Field behavioural assays evidenced that beetles of this species were exclusively attracted to scented traps baited with 4‐methylanisole. Increased total scent discharge attained with an ultrasonic piezoelectric diffuser has positively influenced attractiveness efficiency of the trapping setup. 4‐Methylanisole is hereby identified as yet another volatile kairomone involved in highly selective attraction of potential pest florivorous cyclocephaline scarabs associated with economically exploitable palms and should be viewed as a key element in short‐term integrated management plans for the cultivation of the macauba palm in South America.

9 citations


Cites background from "A bibliometric study on the worldwi..."

  • ...Its comparatively low cost of production compared with that of other vegetable oils (Ramadhas, Jayaraj, & Muraleedharan, 2004; Vicente, Martínez, & Aracil, 2006) has led to an ever‐increasing market growth, presently estimated at U$ 45 billion worldwide (Abrizah, 2012; Murphy, 2009)....

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Journal ArticleDOI
11 Apr 2021
TL;DR: In this paper, the authors explored the characteristics of publication records for a total duration of twenty years, from 2000 to 2019, in the field of Curcuma longa research using the means of scientometrics research techniques.
Abstract: The present study explores the characteristics of publication records for a total duration of twenty years, from 2000 to 2019, in the field of Curcuma longa research. This study has been carried out based on the multidisciplinary bibliographic database available with the Web of Science in Science Citation Index-Expanded (SCIE) and Social Sciences Citation Index (SSCI) and its implications, using the means of scientometrics research techniques. In order to make this analysis a holistic and comprehensive survey of the research trends in the chosen field, the following variables are taken into account: growth rate; global citation scores; distribution of publications by journals, conferences and institutions; favored media of communication; Hirsch index and citation profile of top institutions, countries and authors; contribution of funding agencies; high number of cited papers and characteristics of their bibliographic details. The total number of publication records has been found out to be 6087 during the study period. These 6087 publications have received 171 h-index, 1, 84,715 global citations score and 30.34 average citations. On the whole, 6087 records were published during the study period (2000-2019) in 18 types of documents from 107 countries with 2005 journals, contributed by as many as 20855 authors affiliated to 4879 institutions. These publications were brought out in 18 languages, and they received 1, 56,986 cited references. Majority of the records were in the form of journal articles, reviews, papers in conference proceedings and meeting abstracts, accounting for 97 percent of the total publications. Naturally enough, English happens to be the leading language of 98.8 percent to have accounted for the most number of publications. The four largest contributing countries in the total literature on Curcuma longa during the entire study period are India (24.68 percent), USA (17.7 percent), China (12.2 percent) and Iran (6.09 percent) respectively. The largest institutional contributor of publication records happens to be the Mashhad University of Medical Sciences, Mashhad, Iran with 1.8 percent of the papers to its credit. The most prolific authors to have published more number of research documents during the study period were Sahebkar A (73 papers), Aggarwal BB (67 papers), Nayak S (35 papers) and Kumar A (33 papers). The journal of “Food chemistry” Elsevier ltd tops the list of journals with maximum number of publication records in the field for the given study period with 70 publications, followed by “Journal of Agricultural and Food Chemistry” American Chemical Society (69 papers), “Phytotherapy Research” John Wiley and sons Ltd (63 papers) and “PLOS One” Public Library of Science (59 papers). While the Third World Congress on Medicinal and Aromatic Plants - WOCMAP III held in February 2003 at Thailand resulted in the publication of 6 papers, the following three major funding agencies contributed immensely to the research activities in the field: ‘National Natural Science Foundation of China’ with 318papers, United States Department of Health & Human Services, USA with 304 papers and Council of Scientific Industrial Research, India with 99 papers.

2 citations

References
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Journal IssueDOI
TL;DR: Results show that Scopus significantly alters the relative ranking of those scholars that appear in the middle of the rankings and that GS stands out in its coverage of conference proceedings as well as international, non-English language journals.
Abstract: The Institute for Scientific Information's (ISI, now Thomson Scientific, Philadelphia, PA) citation databases have been used for decades as a starting point and often as the only tools for locating citations andsor conducting citation analyses. The ISI databases (or Web of Science [WoS]), however, may no longer be sufficient because new databases and tools that allow citation searching are now available. Using citations to the work of 25 library and information science (LIS) faculty members as a case study, the authors examine the effects of using Scopus and Google Scholar (GS) on the citation counts and rankings of scholars as measured by WoS. Overall, more than 10,000 citing and purportedly citing documents were examined. Results show that Scopus significantly alters the relative ranking of those scholars that appear in the middle of the rankings and that GS stands out in its coverage of conference proceedings as well as international, non-English language journals. The use of Scopus and GS, in addition to WoS, helps reveal a more accurate and comprehensive picture of the scholarly impact of authors. The WoS data took about 100 hours of collecting and processing time, Scopus consumed 200 hours, and GS a grueling 3,000 hours. © 2007 Wiley Periodicals, Inc.

784 citations

Journal ArticleDOI
TL;DR: The data indicate that the question of which tool provides the most complete set of citing literature may depend on the subject and publication year of a given article, and that any one of these three resources as the answer to all citation tracking needs is not identified.
Abstract: Researchers turn to citation tracking to find the most influential articles for a particular topic and to see how often their own published papers are cited. For years researchers looking for this type of information had only one resource to consult: the Web of Science from Thomson Scientific. In 2004 two competitors emerged – Scopus from Elsevier and Google Scholar from Google. The research reported here uses citation analysis in an observational study examining these three databases; comparing citation counts for articles from two disciplines (oncology and condensed matter physics) and two years (1993 and 2003) to test the hypothesis that the different scholarly publication coverage provided by the three search tools will lead to different citation counts from each. Eleven journal titles with varying impact factors were selected from each discipline (oncology and condensed matter physics) using the Journal Citation Reports (JCR). All articles published in the selected titles were retrieved for the years 1993 and 2003, and a stratified random sample of articles was chosen, resulting in four sets of articles. During the week of November 7–12, 2005, the citation counts for each research article were extracted from the three sources. The actual citing references for a subset of the articles published in 2003 were also gathered from each of the three sources. For oncology 1993 Web of Science returned the highest average number of citations, 45.3. Scopus returned the highest average number of citations (8.9) for oncology 2003. Web of Science returned the highest number of citations for condensed matter physics 1993 and 2003 (22.5 and 3.9 respectively). The data showed a significant difference in the mean citation rates between all pairs of resources except between Google Scholar and Scopus for condensed matter physics 2003. For articles published in 2003 Google Scholar returned the largest amount of unique citing material for oncology and Web of Science returned the most for condensed matter physics. This study did not identify any one of these three resources as the answer to all citation tracking needs. Scopus showed strength in providing citing literature for current (2003) oncology articles, while Web of Science produced more citing material for 2003 and 1993 condensed matter physics, and 1993 oncology articles. All three tools returned some unique material. Our data indicate that the question of which tool provides the most complete set of citing literature may depend on the subject and publication year of a given article.

590 citations

Journal Article
TL;DR: It is quite telling that (based on data from the 1945– 2005 edition of WoS) the article of Bush gathered almost 90% of all its 712 citations in WoS between 1975 and 2005, peaking in 1999 with 45 citations in that year alone.
Abstract: IT may appear blasphemous to paraphrase the title of the classic article of Vannevar Bush but it may be a mitigating factor that it is done to pay tribute to another legendary scientist, Eugene Garfield. His ideas of citationbased searching, resource discovery and quantitative evaluation of publications serve as the basis for many of the most innovative and powerful online information services these days. Bush 60 years ago contemplated – among many other things – an information workstation, the Memex. A researcher would use it to annotate, organize, link, store, and retrieve microfilmed documents. He is acknowledged today as the forefather of the hypertext system, which in turn, is the backbone of the Internet. He outlined his thoughts in an essay published in the Atlantic Monthly. Maybe because of using a nonscientific outlet the paper was hardly quoted and cited in scholarly and professional journals for 30 years. Understandably, the Atlantic Monthly was not covered by the few, specialized abstracting and indexing databases of scientific literature. Such general interest magazines are not source journals in either the Web of Science (WoS), or Scopus databases. However, records for items which cite the ‘As We May Think’ article of Bush (also known as the ‘Memex’ paper) are listed with appropriate bibliographic information. Google Scholar (G-S) lists the records for the Memex paper and many of its citing papers. It is a rather confusing list with many dead links or otherwise dysfunctional links, and a hodge-podge of information related to Bush. It is quite telling that (based on data from the 1945– 2005 edition of WoS) the article of Bush gathered almost 90% of all its 712 citations in WoS between 1975 and 2005, peaking in 1999 with 45 citations in that year alone. Undoubtedly, this proportion is likely to be distorted because far fewer source articles from far fewer journals were processed by the Institute for Scientific Information for 1945–1974 than for 1975–2005. Scopus identifies 267 papers citing the Bush article. The main reason for the discrepancy is that Scopus includes cited references only from 1995 onward, while WoS does so from 1945. Bush’s impatience with the limitations imposed by the traditional classification and indexing tools and practices of the time is palpable. It is worth to quote it as a reminder. Interestingly, he brings up the terms ‘web of trails’ and ‘association of thoughts’ which establishes the link between him and Garfield.

446 citations

Journal ArticleDOI
TL;DR: A detailed paper by paper study is presented of the coverage achieved by ISI Web of Science and by Scopus of the output of a typical university and the general conclusion is that about 2/3 of the documents referenced in any of the two databases may be found in both databases.
Abstract: For many years, the ISI Web of Knowledge from Thomson Reuters was the sole publication and citation database covering all areas of science thus becoming an invaluable tool in bibliometric analysis. In 2004, Elsevier introduced Scopus and this is rapidly becoming a good alternative. Several attempts have been made at comparing these two instruments from the point of view of journal coverage for research or for bibliometric assessment of research output. This paper attempts to answer the question that all researchers ask, i.e., what is to be gained by searching both databases? Or, if you are forced to opt for one of them, which should you prefer? To answer this question, a detailed paper by paper study is presented of the coverage achieved by ISI Web of Science and by Scopus of the output of a typical university. After considering the set of Portuguese universities, the detailed analysis is made for two of them for 2006, the two being chosen for their comprehensiveness typical of most European universities. The general conclusion is that about 2/3 of the documents referenced in any of the two databases may be found in both databases while a fringe of 1/3 are only referenced in one or the other. The citation impact of the documents in the core present in both databases is higher, but the impact of the fringe that are present only in one of the databases should not be disregarded as some high impact documents may be found among them.

371 citations

Journal IssueDOI
TL;DR: Using macrolevel bibliometric indicators to compare results obtained from the WoS and Scopus provides evidence that indicators of scientific production and citations at the country level are stable and largely independent of the database.
Abstract: For more than 40 years, the Institute for Scientific Information (ISI, now part of Thomson Reuters) produced the only available bibliographic databases from which bibliometricians could compile large-scale bibliometric indicators. ISI's citation indexes, now regrouped under the Web of Science (WoS), were the major sources of bibliometric data until 2004, when Scopus was launched by the publisher Reed Elsevier. For those who perform bibliometric analyses and comparisons of countries or institutions, the existence of these two major databases raises the important question of the comparability and stability of statistics obtained from different data sources. This paper uses macrolevel bibliometric indicators to compare results obtained from the WoS and Scopus. It shows that the correlations between the measures obtained with both databases for the number of papers and the number of citations received by countries, as well as for their ranks, are extremely high (R2 a .99). There is also a very high correlation when countries' papers are broken down by field. The paper thus provides evidence that indicators of scientific production and citations at the country level are stable and largely independent of the database. © 2009 Wiley Periodicals, Inc.

303 citations