Subjects: Digital Publishing >> Internet Journals submitted time 2024-02-23
Abstract： [Purposes] To enhance the ability of medical journal editors to identify suspected academic misconduct in submitting multiple manuscripts, and to provide reference for improving the accuracy of initial review of manuscripts. [Methods] The research object is the multiple contributions and rejected manuscripts of Journal of Sun Yat-sen University (Medical Sciences) from January 2021 to December 2021. we track the publication status of manuscripts, analyze the behavior of submitting multiple manuscripts, republish journal issues and selected databases status, and construct a portrait of the first author group suspected of submitting multiple academic misconduct manuscripts. [Findings] In 2021, a total of 91 suspected academic misconduct manuscripts were published after rejected, of which 55 had changes in the authors’ name and affiliation at the time of publication. Out of 91 manuscript, 77 (84.6%) were published in various core journals: 27 (29.7%) were published in Peking University core journals, 17 (18.7%) were published in CSCD indexed journals, and 68 (74.7%) were published in CSTPCD indexed journals. The portrait of the first author group of 214 suspected academic misconduct manuscripts with multiple submissions has the following characteristics. 60% of this population is male and 40% is female; 54% hold intermediate titles and 34% hold deputy senior professional titles, but there are also some students on campus. The vast majority of educational qualifications are undergraduate and master's degrees. Most of them are concentrated in tertiary hospitals in non provincial capitals and municipalities directly under the central government. Most of them are clinical doctors, mainly distributed in internal medicine, surgery, and imaging departments. [Conclusions] It is recommended that medical journals strictly implement the three reviews and three schools, and prevent academic misconduct by establishing a technical process for detecting academic misconduct, strengthening academic integrity education for authors, and establishing an academic integrity alliance to share academic misconduct data.
Subjects: Environmental Sciences, Resource Sciences >> Other Disciplines of Environmental Sciences, Resource Sciences submitted time 2021-03-02 Cooperative journals: 《干旱区研究》
Abstract：基于新疆天山26个气象站1960—2017年的气象资料，采用FAO Penman-Monteith模型计算了各气象站月地表湿润指数，标准化后统计极端干湿事件频率。运用线性趋势分析法、反距离加权法探究了极端干湿事件频率的时空演变特征，并采用相关分析、偏相关分析及交叉小波分析分别探讨了气象因子和大气环流对极端干湿事件变化的影响。结果表明（: 1）新疆天山极端干、湿事件分别呈减少、增加趋势，年际倾向率分别为-0.40次·(10a)-1、0.37次·(10a)-1。夏季为天山极端干、湿事件的共同高发季节，也是极端干旱下降趋势最大的季节，而秋季是极端湿润上升趋势最大的季节。（2）天山北坡是极端干旱事件和极端湿润事件的共同高发区域，极端干、湿事件发生频率高达4.44次·a-1、2.76次·a-1，也是极端干旱下降、极端湿润上升速率最快的区域，平均年际倾向率分别为-0.75次·(10a)-1、0.58次·(10a)-1。（3）平均相对湿度是导致该区域极端干湿事件变化的主要气象因子，厄尔尼诺-南方涛动（ElNiño-Southern Oscillation）是主要大气环流因素。
Subjects: Geosciences >> Other Disciplines of Geosciences submitted time 2019-09-10 Cooperative journals: 《干旱区研究》
Abstract：以伊宁市城区主干道旁表土层为研究对象，共采集52个土样，应用分光光度仪测定6种重金属（Hg，Cr，Ni，Pb，Cu和Zn）元素含量。基于地学统计法应用单项污染指数（CF）和污染负荷指数（PLI）研究道路重金属污染近况和解释环境质量问题。结果表明：① 表土层中Hg、Ni、Pb和Cu的均值各超出新疆土壤背景值的2.75、1.48、2.60倍和1.52倍，Cr和Zn均未超其背景值。除Pb以外，其余元素含量均未超过国家土壤环境质量Ⅰ级标准(mg·kg-1)。② 道路表土中6种元素均呈点和面状分布格局，各元素在研究区内均有高值，表明经济生产、工业发展、道路交通等人为活动对道路土壤生境具有消极影响。③ Hg、Pb表现为区域性严重污染，Ni和Cu均呈不同水平的轻度污染等级，Cr和Zn的轻微污染和无污染等级分别占17.31%、82.69%和23.08%、59.62%。④ 研究区各元素CF均值从大到小顺次为：Pb、Hg、Ni、Cu、Zn、Cr。重金属PLI平均值为1.20，表现为轻度污染。土壤中Pb较其他重金属污染严重。
Subjects: Environmental Sciences, Resource Sciences >> Basic Disciplines of Environmental Science and Technology submitted time 2018-11-08 Cooperative journals: 《干旱区研究》
Abstract：利用天山地区26个气象站1961—2015年的逐月气温和降水资料，探讨不同气候基准态对气候监测和评估的影响，为天山地区气候变化研究提供更加科学客观的依据。研究表明:①天山东段是不同气候态下气温变化的敏感区，而天山北坡是年降水变化的敏感区。以Ⅳ态（1961—2015年）的变化为基准，在Ⅰ态（1961—1990年）与Ⅱ态（1971—2000年）下气温要素与降水要素的分析结果均偏高，Ⅲ态（1981—2010年）下分析结果则偏低。②以Ⅳ态的突变时间为基准,气温整体上Ⅰ态没有突变、Ⅱ态出现突变偏早，Ⅲ态出现突变偏迟。③Ⅰ态和Ⅱ态会使气温和降水等级偏小，而Ⅲ态会使气温和降水等级偏大。不同气候态对降水异常没有影响，Ⅲ态对气温异常产生的影响最小。④采用不同气候态分析天山地区同时段同类要素时，会出现正向变化也出现负向变化。同时在使用基准气候态进行气候变化分析时，需结合多因素对分析结果进行客观的评价。
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