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61篇 您的检索式:作者名="Jessica Li"
    题名 作者 年代 出处 被引量
1成人在线学习自我效能感量表编制及测量显示文摘互联网时代,在线学习方式的应用会越来越普遍。学习者的自我效能感既是学习者对学习效果的自我评估,又是学习者进一步学习的动力,因此,研究在线学习的自我效能感因素及编制在线学习的自我效能感量表很有必要。目前,已有的自我效能感量表局限于在校生面授学习、在校生在线学习及成人面授学习三种方式,而成人在线学习的自我效能感量表还缺乏相关研究。为此,通过采用网络问卷方法针对成人在线学习进行数据收集,并应用探究式分析方法进行因子分析,采用信度检验与效度检验,最终得到成人在线学习自我效能感量表是由学习能力、学习意志、学习技术三个维度、23个题项组成。基于不同的背景变量,应用本量表测量我国成人在线学习的自我效能感发现,性别、学历、收入对成人在线学习自我效能感有显著影响,而年龄、地区、职业、职位对成人在线学习自我效能感没有显著影响。Jessica Li 王辞晓 吴峰 2015远程教育杂志2015,33,6:42
2桑枝总黄酮的抗氧化活性研究显示文摘目的研究桑枝总黄酮于无细胞系统中的直接抗氧化活性和干预细胞后的体外抗氧化活性。方法桑枝总黄酮经提取和D101大孔树脂纯化后获得,并用紫外分光光度法测定。采用DPPH法、ABTS法和FRAP法分析桑枝总黄酮的直接抗氧化活性且用trolox做阳性对照;采用ABTS法、FRAP法和Griess法分别测定桑枝总黄酮干预AngII诱导内皮细胞模型和LPS协同IFN-γ诱导巨噬细胞模型中的抗氧化活性。结果桑枝总黄酮于100μg/mL剂量对ABTS自由基清除能力>对DPPH自由基清除能力>对铁离子的还原能力;在AngII诱导内皮细胞ECV304模型中显示清除ABTS自由基的能力,且强于对铁离子的还原能力;同时能显著降低LPS协同IFN-γ诱导巨噬细胞中亚硝酸盐的量。结论桑枝总黄酮于体外直接测定或干预细胞后均显示具有抗氧化活性。章丹丹 高月红 Jessica Tao Li 潘一峰 卞卡 2011中成药2011,33,6:27
3Cosmetic outcome and surgical site infection rates of antibacterial absorbable (Polyglactin 910) suture compared to Chinese silk suture in breast cancer surgery: a randomized pilot research显示文摘背景市场以后的学习是比较 triclosan 涂的 VICRYL 的化妆结果的这 multicenter 的主要目的 * 有为修改的基的皮肤闭合的中国丝绸缝术的正缝术乳房切除术。一个第二等的目的是估计经历修改激进的乳房切除术的 .Methods 病人随机被分到涂的 VICRYL 的外科的地点感染(SSI ) 的发生 * 正抗菌剂(Polyglactin 910 ) 缝术或中国丝绸缝术。化妆结果在天手术后地被评估 12 (蛐吗??ZHANG Zhong-tao ZHANG Hong-wei FANG Xue-dong WANG Li-ming LI Xiao-xi LI Ya-fen SUN Xiao-wei Judith Carver Dorella Simpkins Jessica Shen Martin Weisberg 2011Chinese Medical Journal2011,,5:9
4Application of Avaatech X-ray fluorescence core-scanning in Sr/Ca analysis of speleothems显示文摘Application of X-ray fluorescence core-scanning(XRF-CS) on both marine and lake sediments has achieved remarkable results. However, its application has not been widely extended to the research on speleothems. In this study, we measure the Sr abundance and the Sr/Ca ratios of three stalagmites(two aragonite stalagmites, one calcite stalagmite) using the state-of-the-art fourth-generation Avaatech high-resolution XRF core scanner. Through comparisons among different scan paths and among different scan resolutions, as well as comparisons with inductively coupled plasma optical emission spectrometer(ICP-OES), Itrax XRF, and Artax XRF results, we confirm that the Avaatech XRF core scanner could precisely, quickly, and nondestructively analyze the high-resolution Sr abundance of speleothems. Furthermore, we combine the stalagmite δ^(18)O records to explore the paleoclimatic significance of the measured stalagmite Sr/Ca.Dong LI Liangcheng TAN Fei GUO Yanjun CAI Youbin SUN Gang XUE Xing CHENG Hong YAN Hai CHENG R.Lawrence EDWARDS Yongli GAO Jessica KELLEY 2019Science China Earth Sciences2019,62,6:7
5A novel Cu-bearing high-entropy alloy with significant antibacterial behavior against corrosive marine biofilms显示文摘The design of novel high-entropy alloys(HEAs)provides a unique opportunity for the development of structure-function integrated materials with high mechanical and antimicrobial properties.In this study,by employing the antibacterial effect of copper,a novel Al0.4CoCrCuFeNi HEA with broad-spectrum antibacterial and strong mechanical properties was designed.High concentrations of copper ions released from the HEA prevented growth and biofilm formation by biocorrosive marine bacterial species.These findings serve as a proof-of-concept for further development of unique HEA materials with high antimicrobial efficiency and mechanical properties,compared to conventional antibacterial alloys.Enze Zhou Dongxu Qiao Yi Yang Dake Xu Yiping Lu Jianjun Wang Jessica A.Smith Huabing Li Hongliang Zhao Peter K.Liaw Fuhui Wang 2020Journal of Materials Science & Technology2020,42,11:6
6A review of the microbiology of the Rehai geothermal field in Tengchong,Yunnan Province,China显示文摘Rehai 地热的领域,在 Tengchong 定位了县在中央西方的云南省,是在中国的最大、最强烈地学习的地热的领域。弹簧的宽物理化学的差异(对 97Brian P.Hedlund Jessica K.Cole Amanda J.Williams Weiguo Hou Enmin Zhou Wenjun Li Hailiang Dong 2012Geoscience Frontiers2012,3,3:6
7Incidence and Phenotype of Inflammatory Bowel Disease Based on Results From the Asia-Pacific Crohn’s and Colitis Epidemiology Study显示文摘Siew C. Ng Whitney Tang Jessica Y. Ching May Wong Chung Mo Chow A.J. Hui T.C. Wong Vincent K. Leung Steve W. Tsang Hon Ho Yu Mo Fong Li Ka Kei Ng Michael A. Kamm Corrie Studd Sally Bell Rupert Leong H. Janaka de Silva Anuradhani Kasturiratne M.N.F. Mufeen 2013Gastroenterology2013,,1:6
8Methanogenic archaea and sulfate reducing bacteria induce severe corrosion of steel pipelines after hydrostatic testing显示文摘Complex interactions within a microbial consortium can induce severe corrosion in oil pipelines.This study investigated the mechanism of microbiologically influenced corrosion(MIC)that led to failure of X52 steel pipelines after hydrostatic testing.Laboratory hydrostatic testing with untreated lake water and underground water were used to simulate and study the events that led to the actual corrosion.Biofilm analysis,weight loss,and several electrochemical measurements demonstrated rapid corrosion rates after hydrostatic testing.Analysis of microbial community structures revealed that methanogenic archaea and sulfate reducing bacteria(SRB),introduced by the hydrotest water,formed corrosive biofilms on X52 steel coupon surfaces that induced severe pitting.Enze Zhou Jianjun Wang Masoumeh Moradi Huabing Li Dake Xu Yuntian Lou Jinheng Luo Lifeng Li Yulei Wang Zhenguo Yang Fuhui Wang Jessica A.Smith 2020Journal of Materials Science & Technology2020,47,13:5
9Breast cancer in China显示文摘Lei Fan Kathrin Strasser-Weippl Jun-Jie Li Jessica St Louis Dianne M Finkelstein Ke-Da Yu Wan-Qing Chen Zhi-Ming Shao Paul E Goss 2014Lancet Oncology2014,,7:4
10Mobility in China,2020:a tale of four phases显示文摘2020 was an unprecedented year;with rapid and drastic changes in human mobility due to the COVID-19 pandemic.To understand the variation in commuting patterns among the Chinese population across stable and unstable periods,we used nationwide mobility data from 318 million mobile phone users in China to examine the extreme fluctuations of population movements in 2020,ranging from the Lunar New Year travel season(chunyun),to the exceptional calm of COVID-19 lockdown,and then to the recovery period.We observed that cross-city movements;which increased substantially in chunyun and then dropped sharply during the lockdown,are primarily dependent on travel distance and the socio-economic development of cities.Following the Lunar New Year holiday,national mobility remained low until mid-February,and COVID-19 interventions delayed more than 72.89 million people returning to large cities.Mobility network analysis revealed clusters of highly connected cities,conforming to the social-economic division of urban agglomerations in China.While the mass migration back to large cities was delayed,smaller cities connected more densely to form new clusters.During the recovery period after travel restrictions were lifted,the netflows of over 55%city pairs reversed in direction compared to before the lockdown.These findings offer the most comprehensive picture of Chinese mobility at fine resolution across various scenarios in China and are of critical importance for decision making regarding future public-health-emergency response,transportation planning and regional economic development,among others.Suoyi Tan Shengjie Lai Fan Fang Ziqiang Cao Bin Sai Bing Song Bitao Dai Shuhui Guo Chuchu Liu Mengsi Cai Tong Wang Mengning Wang Jiaxu Li Saran Chen Shuo Qin Jessica R.Floyd Zhidong Cao Jing Tan Xin Sun Tao Zhou Wei Zhang Andrew J.Tatem Petter Holme Xiaohong Chen Xin Lu 2021National Science Review2021,8,11:3
11Prediction models of long‐term Cirrhosis and hepatocellular carcinoma risk in chronic hepatitis B patients: Risk scores integrating host and virus profiles显示文摘Mei‐Hsuan Lee Hwai‐I. Yang Jessica Liu Richard Batrla‐Utermann Chin‐Lan Jen Uchenna H. Iloeje Sheng‐Nan Lu San‐Lin You Li‐Yu Wang Chien‐Jen Chen 2013Hepatology2013,,2:3
12Can we early diagnose metabolic syndrome using brachial-ankle pulse wave velocity in community population?显示文摘Li Xin Zheng Liang Wu Juanli Ma Yunsheng Masanori Munakata Oleski Jessica Zhang Lijuan Wo Da Wang Jingsong Jiang Qiaoyu Zou Liling Liu Xuebo Li Jue 2014Chinese Medical Journal2014,,17:3
13马来西亚视神经萎缩的临床特点及病因(英文)显示文摘目的:研究在马来西亚非青光眼视神经萎缩的病因及临床特点。方法:一系列回顾性的研究分析马来西亚理科大学校医院眼诊所在2007/2011年间被诊断为非青光眼视神经萎缩的患者。至少随访1a。评估这些患者的医疗记录及汇编调查结果。结果:100例患者符合选择标准,56%的患者双眼都参与研究。主要症状为视力模糊(61%),除了视力模糊外还出现神经方面病症(18%),视野狭窄(9%)。大多数患者(63%)患眼视力下降到3/60以下。主要的病因是颅内占位性病变(26%),先天性疾病(13%),脑积水(12%),创伤(12%)及血管因素(12%)。对大多数患者(67%)采用保守治疗。不管其病因,视神经萎缩都伴有不同程度的视功能障碍。随访1a后,50%的患者出现不同程度的视觉障碍。结论:视神经萎缩主要的病因是颅内占位性病变,其次分别是先天性疾病,创伤和血管疾病。在诊断之前常常就出现视觉和神经上的症状,而疾病显著地影响着视力的变化。为了早期诊断视神经萎缩,当视力模糊的主诉为非特异性时,应该高度怀疑本病。Evelyn Tai Li Min Jessica Mani Penny Tevara Zunaina Embong Raja Azmi Mohd Noor Wan-Hazabbah Wan Hitam 2014国际眼科杂志2014,14,2:2
14Medical student depression and its correlates across three international medical schools显示文摘BACKGROUND Medical students have high rates of depression, anxiety, and burnout that have been found to affect their empathy, professional behaviors, and performance as a physician. While studies have examined predictors for burnout and depression in the United States (US), no study, to our knowledge, has compared depression in medical students cross-culturally, or has attempted to examine the effect of factors influencing rates including burnout, exercise, stress, unmet mental health needs, and region. AIM To examine rates of depression in three international cohorts of medical students, and determine variables that may explain these differences. METHODS Convenience samples of medical students from three countries (US, China, and a Middle Eastern country whose name remains anonymous per request from the school) were surveyed in this observational study. Using the Patient Health Questionnaire-2 (PHQ-2) and a modified Maslach Burnout Inventory, depression and burnout were examined among medical students from the three cohorts (n = 473). Chi-square test and analysis of variance were used to examine differences in demographics, behavioral, and psychological variables across these three schools to identify potentially confounding descriptive characteristics. Analysis of covariance compared depression and the emotional exhaustion component of burnout identified through Principal Component Analysis across countries. Multiple linear regression was used to analyze the impact of demographic, behavioral, and psychological variables on screening positive for depression. RESULTS Medical students from the Middle Eastern country had the highest rates of positive depression screens (41.1%), defined as a PHQ-2 score of ≥ 3, followed by China (14.1 %), and then the US (3.8%). More students in the Middle Eastern school had unmet mental health needs (50.8%) than at the medical school in China (34.8%) or the school in the US (32.8%)(Pearson chi-square significance < 0.05). Thus, PHQ-2 scores were adjusted for unmet mental health needs;however, the Middle Eastern country continued to have the highest depression. Adjusting for PHQ-2 score, medical students from the US scored the highest on emotional exhaustion (a measure of burnout). Demographic variables did not significantly predict medical student depression;however, lack of exercise, unmet mental health needs, stress, and emotional exhaustion predicted nearly half of depression in these cohorts. In comparison to the US, coming from the Middle Eastern country and China predicted higher levels of depression. CONCLUSION Depression rates differ in three international cohorts of medical students. Measured factors contributed to some observed differences. Identifying sitespecific prevention and intervention strategies in medical student mental health is warranted.Jessica A Gold Xinran Hu Gan Huang Wan-Zhen Li Yi-Fan Wu Shan Gao Zhe-Ning Liu Mickey Trockel Wan-Zhen Li Yi-Fan Wu Shan Gao Zhe-Ning Liu Robert M Rohrbaugh Kirsten M Wilkins 2019World Journal of Psychiatry2019,9,4:2
15Peripheral leukocyte and endometrium molecular biomarkers of inflammation and oxidative stress are altered in peripartal dairy cows supplemented with Zn,Mn,and Cu from amino acid complexes and Co from Co glucoheptonate显示文摘Background: Immune dysfunction and a higher risk of uterine infections are characteristics of the transition into lactation in dairy cows. The supply of complexed trace minerals, which are more bioavailable, could help overcome the greater needs of these nutrients in tissues around parturition and early lactation.Results: Twenty Holstein cows received an oral bolus with a mix of inorganic trace minerals(INO) or complexed trace minerals(AAC) to achieve 75, 65, 11, and 1 ppm supplemental Zn, Mn, Cu, and Co, respectively, in the total diet dry matter from -30 d through +30 d relative to parturition. Blood for polymorphonuclear leukocyte(PMNL) isolation was collected at-30,-15, +10, and + 30 d relative to parturition, whereas endometrium biopsies were performed at +14 and +30 d. Feeding AAC led to greater PMNL expression of genes related with inflammation response(DDX58), oxidative stress response(MPO), eicosanoid metabolism(PLA2G4A and ALOX5AP), transcription regulation(PPARG), and cellular adhesion(TLN1). The upregulation by AAC in endometrium of genes related with inflammation response( TLR2, TLR4, NFKB1, TNF, IL6, IL1 B, IL10, IL8), prostaglandin synthesis(PTGS2, PTGES), and antioxidant responses(NFE2 L2, SOD1) indicated a faster remodeling of uterine tissue and potentially greater capacity to control a local bacterial invasion.Conclusions: Data indicate that trace mineral supplementation from amino acid complexes improves PMNL activity and allows the prompt recovery of uterine tissue during early lactation. As such, the benefits of complexed trace minerals extend beyond an improvement of liver function and productive performance.Fernanda Batistel Johan S.Osorio Muhammad Rizwan Tariq Cong Li Jessica Caputo Michael T.Socha Juan J.Loor 2017Journal of Animal Science and Biotechnology2017,8,4:2
16在结核病患者中通过评估解剖结构和视功能变化早期发现乙胺丁醇毒性(英文)显示文摘目的:通过评估比较治疗前后解剖结构和视功能的变化,包括视网膜神经纤维厚度、图形视觉诱发电位、传统视神经功能检查,早期检测乙胺丁醇毒性。方法:前瞻性研究,包括参加马来西亚理科大学医院的短期治疗观察项目的36例72眼结核病患者。视力和视神经功能检查由同一位研究者进行。同样,Humphrey自动视野检查、光学相干断层扫描(OCT)检查视网膜神经纤维厚度(RNFL)和图形视觉诱发电位(PVEP)均由同一位技术人员进行。在开始乙胺丁醇治疗前和治疗3mo后各进行检查一次。结果:乙胺丁醇治疗前后视力、彩色视觉、光亮度、红光反射和眼底检查无明显改变。然而,平均视野缺损在治疗后较前变差(P=0.010)。OCT和PVEP有显著变化,P100潜伏期延长、幅度降低,RNFL在各个象限均增厚(P<0.05)。结论:通过OCT检测RNFL厚度以及使用PVEP检测P100波峰潜伏期和幅度,可以在传统视神经功能检查异常之前,发现乙胺丁醇治疗后早期解剖结构和视功能的亚临床改变。Jessica Mani Penny Tevaraj Tan Chai Keong Evelyn Tai Li Min Muhammed Julieana Raja Azmi Mohd Noor Wan-Hazabbah Wan Hitam 2017国际眼科杂志2017,17,11:2
17培训迁移研究的国际视野——个体特征、组织环境与系统设计显示文摘培训迁移是人力资源开发的重要环节,它直接决定了员工能否将其在培训中所学的知识运用到工作场所中并最终产生绩效。但在具体的人力资源开发项目实施过程中,这一环节容易被忽视,培训迁移率低也往往是培训失败的主要原因之一。目前,国内外学者对培训迁移越来越重视,相关的研究也越来越多。文章选取近年来国内外学者在本领域内的重要研究成果,对个体特征、组织环境、系统设计三个要素进行了系统综述,并对培训迁移要素进行了总结。吴峰 夏洁 Li Jessica 2015现代教育技术2015,25,8:2
18Highlights of the 2nd International Symposium on Tribbles and Diseases: tribbles tremble in therapeutics for immunity, metabolism, fundamental cell biology and cancer显示文摘The Tribbles(TRIB) family of pseudokinase proteins has been shown to play key roles in cell cycle, metabolic diseases, chronic inflammatory disease, and cancer development. A better understanding of the mechanisms of TRIB pseudokinases could provide new insights for disease development and help promote TRIB proteins as novel therapeutic targets for drug discovery. At the 2 nd International Symposium on Tribbles and Diseases held on May 7–9, 2018 in Beijing, China, a group of leading Tribbles scientists reported their findings and ongoing studies about the effects of the different TRIB proteins in the areas of immunity, metabolism, fundamental cell biology and cancer. Here, we summarize important and insightful overviews from 4 keynote lectures, 13 plenary lectures and 8 short talks that took place during this meeting. These findings may offer new insights for the understanding of the roles of TRIB pseudokinases in the development of various diseases.Bing Cui Patrick A. Eyers Leonard L. Dobens Nguan Soon Tan Peter D. Mace Wolfgang A. Link Endre Kiss-Toth Karen Keeshan Takuro Nakamura Warren S. Pear Yodit Feseha Jessica Johnston Arkatiz Carracedo Marcel Scheideler Zabran llyas Robert C. Bauer Jorge D. Erusalimsky Dominika Grzesik Juan Salamanca-Viloria Xiaoxi Lv Yishi Jin Ke Li Guillermo Velasco Shuang Shang Jose M. Lizcano Xiaowei Zhang Jichao Zhou Jiaojiao Yu Fang Hua Feng Wang Shanshan Liu Jinmei Yu Zhuowei Hu 2019Acta Pharmaceutica Sinica B2019,9,2:2
19Drug screening: zebrafish as a tool for studying epileptic-related chemical compounds显示文摘Sha-Sha Zhao (1) (2) Yi-Liao Wang (3) Ming-Zhu Sun (3) Lu Lu (1) (2) Ya-Nan Wang (1) Delaney Pfister (4) Jessica Lee (4) Xin Zhao (3) Xi-Zeng Feng (1) Lei Li (4) 2015Protein & Cell2015,6,11:1
20Electron transfer mediator PCN secreted by aerobic marine Pseudomonas aeruginosa accelerates microbiologically influenced corrosion of TC4 titanium alloy显示文摘Titanium alloys possess excellent corrosion resistance in marine environments,thus the possibility of their corrosion caused by marine microorganisms is neglected.In this work,microbiologically influenced corrosion(MIC)of TC4 titanium alloy caused by marine Pseudomonas aeruginosa was investigated through electrochemical and surface characterizations during a 14-day immersion test.Results revealed that the unstable surface caused by P.aeruginosa resulted in exposure of Ti_(2)O_(3) and severe pitting corrosion with maximum pit depth of 5.7μm after 14 days of incubation.Phenazine-1-carboxylate(PCN),secreted by P.aeruginosa,promoted extracellular electron transfer(EET)and accelerated corrosion.Deletion of the phzH gene,which codes for the enzyme that catalyzes PCN production,from the P.aeruginosa genome,resulted in significantly decreased rates of corrosion.These results demonstrate that TC4 titanium alloy is not immune to marine MIC,and EET contributes to the corrosion of TC4 titanium alloy caused by P.aeruginosa.Dan Liu Hongying Yang Jianhui Li Jiaqi Li Yizhe Dong Chuntian Yang Yuting Jin Lekbach Yassir Zhong Li David Hernandez Dake Xu Fuhui Wang Jessica A.Smith 2021Journal of Materials Science & Technology2021,,20:1
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