JIPB's 2016 Impact Factor:3.962

正We are delighted to announce that JIPB's 2-year SCI impact factor(IF)has reached 3.962(8%increase as compared to last year,Fig.1),and 5-year IF is 3.956,according to 2016 Journal Citation Report.Among 211 SCI-indexed Plant Science journals in the world,JIPB ranks 24th(top 9.95%,Q1 category).The total citations of JIPB in 2016 are 3,773(12%increase as compared to 2015,Fig.2).Over the last 9 years,the JIPB impact factor has     

JIPB's 2016 Impact Factor:3.962

正We are delighted to announce that JIPB's 2-year SCI impact factor(IF)has reached 3.962(8%increase as compared to last year,Fig.1),and 5-year IF is 3.956,according to 2016 Journal Citation Report.Among 211 SCI-indexed Plant Science journals in the world,JIPB ranks 24th(top 11%,Q1 category).The total     

JIPB's 2016 Impact Factor:3.962

正We are delighted to announce that JIPB's 2-year SCI impact factor(IF)has reached 3.962(8%increase as compared to last year,Fig.1),and 5-year IF is 3.956,according to 2016 Journal Citation Report.Among 211 SCI-indexed Plant Science journals in the world,JIPB ranks 24th(top 11%,Q1 category).The total citations of JIPB in 2016 are 3,773(12%increase as compared to 2015,Fig.2).Over the last 9 years,the JIPB impact factor has increased 4.6 times(see Fig.1).At the mean time Plant Cell has     

The Scientific Impact of Nations: Journal Placement and Citation Performance

International collaboration is becoming increasingly important for the advancement of science. To gain a more precise understanding of how factors such as international collaboration influence publication success, we divide publication success into two categories: journal placement and citation performance. Analyzing all papers published between 1996 and 2012 in eight disciplines, we find that those with more countries in their affiliations performed better in both categories. Furthermore, specific countries vary in their effects both individually and in combination. Finally, we look at the relationship between national output (in papers published) and input (in citations received) over the 17 years, expanding upon prior depictions by also plotting an expected proportion of citations based on Journal Placement. Discrepancies between this expectation and the realized proportion of citations illuminate trends in performance, such as the decline of the Global North in response to rapidly developing countries, especially China. Yet, most countries'' show little to no discrepancy, meaning that, in most cases, citation proportion can be predicted by Journal Placement alone. This reveals an extreme asymmetry between the opinions of a few reviewers and the degree to which paper acceptance and citation rates influence career advancement.     

调整非球面因子的近视矫正模型及仿真

针对人眼角膜形状的非球面性,给出了以非球面因子为参数的二次曲面来对角膜表面建模,以此推导了近视矫正量公式,给出各参数的确定方法。与球面假设的近视模型比较,在相同术区大小和矫正近视度数的情况下,非球面假设的近视矫正模型可减小角膜最大切削深度。本模型保证了正常角膜的非球性,理论上可减少术后球差,改善术后视觉质量;本模型可用于指导单纯近视的矫正。     

Integrative Approach to Quality Assessment of Medical Journals Using Impact Factor,Eigenfactor, and Article Influence Scores

Background

Impact factor (IF) is a commonly used surrogate for assessing the scientific quality of journals and articles. There is growing discontent in the medical community with the use of this quality assessment tool because of its many inherent limitations. To help address such concerns, Eigenfactor (ES) and Article Influence scores (AIS) have been devised to assess scientific impact of journals. The principal aim was to compare the temporal trends in IF, ES, and AIS on the rank order of leading medical journals over time.

Methods

The 2001 to 2008 IF, ES, AIS, and number of citable items (CI) of 35 leading medical journals were collected from the Institute of Scientific Information (ISI) and the http://www.eigenfactor.org databases. The journals were ranked based on the published 2008 ES, AIS, and IF scores. Temporal score trends and variations were analyzed.

Results

In general, the AIS and IF values provided similar rank orders. Using ES values resulted in large changes in the rank orders with higher ranking being assigned to journals that publish a large volume of articles. Since 2001, the IF and AIS of most journals increased significantly; however the ES increased in only 51% of the journals in the analysis. Conversely, 26% of journals experienced a downward trend in their ES, while the rest experienced no significant changes (23%). This discordance between temporal trends in IF and ES was largely driven by temporal changes in the number of CI published by the journals.

Conclusion

The rank order of medical journals changes depending on whether IF, AIS or ES is used. All of these metrics are sensitive to the number of citable items published by journals. Consumers should thus consider all of these metrics rather than just IF alone in assessing the influence and importance of medical journals in their respective disciplines.     

天气变化对人口死亡率的影响——以广州市和上海市为例

人口死亡率与天气有一定的关系,以广州、上海两市１０个冬季和夏季的逐日死亡资料和气象资料,利用统计学和天气学方法得出,在最高温度达３４℃的“热日”,各类死亡数明显增多;而冬季死亡数随最低温度的下降而略有增加;广州夏季最大死亡率出现在“阴凉型”天气,而上海则是在“晴热型”天气,且上海死亡率受最高温度的影响大于广州;广州和上海冬季死亡率最大的天气均是“严寒型”,但广州死亡率受低温的影响要比上海大．在其他气象要素相似的情况下,风速对死亡率有一定的影响．     

2009 Society for Medical Anthropology Conference: Changing Anthropology,Changing Society

Fifty years after the founding of the field of medical anthropology, the Society for Medical Anthropology of the American Anthropological Association held its first independent meeting on September 24-27, 2009, at Yale University.Fifty years after the founding of the field of medical anthropology, the Society for Medical Anthropology of the American Anthropological Association held its first independent meeting on September 24-27, 2009, at Yale University in New Haven, Connecticut. The conference, Medical Anthropology at the Intersections, drew an international audience of more than 1,000 scholars.In her opening remarks, program Chair Marcia Inhorn noted that medical anthropology has been interdisciplinary since its inception. This assertion was supported at a roundtable discussion, Founding Medical Anthropology and the Society for Medical Anthropology, which featured four of the field’s founders.Asked to identify the factors that led to the development of medical anthropology, the panelists emphasized the role of changes in the practice and landscape of medicine in the late 1950s and early 1960s in the United States. According to Hazel Weidman, who helped spearhead the Society for Medical Anthropology, medical personnel sought social scientists’ guidance in the new clinical environments created by the increasing involvement of U.S. physicians in global development work and by the community-oriented approach to mental health encouraged by the Community Mental Health Act of 1963. The novel inclusion of lifestyle as a determinant of health at this time also played a role, according to Clifford Barnett. Norman Scotch, author of a 1963 review that had helped define medical anthropology as a field, noted that physicians at the time were very interested in the possible applications of the social sciences to medicine [1,2]. Joan Ablon recalled that this emphasis on application led some academic anthropologists to dismiss the medical anthropologist as a “handmaiden to the doctors.” Despite such resistance, interest in medical anthropology as a sub-field was clearly growing among anthropologists. When Weidman helped organize the first gathering of medical anthropologists at an anthropology conference in 1967, attendance was twice what was expected. Panel organizer Alan Harwood noted that the Society for Medical Anthropology transformed its newsletter into a professional journal, Medical Anthropology Quarterly, in 1983. According to Inhorn, the society has 1,300 members today.For the panelists, medical anthropology’s potential for application makes it a compelling scholarly pursuit. As Barnett stated in explaining his decision to work in anthropology: “If you know how a society works, you can change it.”