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World Journal of Hepatology 2017年第7期9卷 401-408页

作者： Giliane belarmino Maria Cristina Gonzalez Raquel S Torrinhas Priscila Sala Wellington Andraus Luiz Augusto Carneiro D'Albuquerque Rosa Maria R Pereira Valéria F Caparbo Graziela R Ravacci Lucas Damiani steven b heymsfield Dan L Waitzberg Department of Gastroenterology Surgical DivisionFaculdade de Medicina da Universidade de Sao Paulo Postgraduate Program in Health and behavior Universidade Católica de Pelotas Pennington biomedical Research Center Laboratory of bone Metabolism Rheumatology DivisionFaculdade de Medicina da Universidade de Sao Paulo Research Institute Hospital do Coracao de Sao Paulo

AIM To evaluate the prognostic value of the phase angle(PA)obtained from bioelectrical impedance analysis(bIA) for mortality prediction in patients with cirrhosis. METHODS In total, 134 male cirrhotic patients prospectively completed clinical evaluations and nutritional assessment by bIA to obtain PAs during a 36-mo follow-up period. Mortality risk was analyzed by applying the PA cutoff point recently proposed as a malnutrition marker(PA ≤ 4.9°) in Kaplan-Meier curves and multivariate Cox regression models. RESULTS The patients were divided into two groups according to the PA cutoff value(PA > 4.9°, n = 73; PA ≤ 4.9°, n = 61). Weight, height, and body mass index were similar in both groups, but patients with PAs > 4.9° were younger and had higher mid-arm muscle circumference, albumin, and handgrip-strength values and lower severe ascites and encephalopathy incidences, interleukin(IL)-6/IL-10 ratios and C-reactive protein levels than did patients with PAs ≤ 4.9°(P ≤ 0.05). Forty-eight(35.80%) patients died due to cirrhosis, with a median of 18 mo(interquartile range, 3.3-25.6 mo) follow-up until death. Thirty-one(64.60%) of these patients were from the PA ≤ 4.9° group. PA ≤ 4.9° significantly and independently affected the mortality model adjusted for Model for End-Stage Liver Disease score and age(hazard ratio = 2.05, 95%CI: 1.11-3.77, P = 0.021). In addition, Kaplan-Meier curves showed that patients with PAs ≤ 4.9° were significantly more likely to die. CONCLUSION In male patients with cirrhosis, the PA ≤ 4.9° cutoff was associated independently with mortality and identified patients with worse metabolic, nutritional, and disease progression profiles. The PA may be a useful and reliable bedside tool to evaluate prognosis in cirrhosis.

关键词： bioelectrical impedance analysis body composition Phase angle Nutritional assessment Liver disease Cirrhosis Mortality

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产科动态:胎儿正常发育保证体系

当代医学 2001年第4期7卷 18-21页

作者：陈宝英 steven b.heymsfield WHO母婴及妇女保健研究培训合作中心美国哥伦比亚大学医学院医疗系

本文简要介绍了世界围产保健的现状,分析了中国目前在这一领域存在的问题,以及说明了在中国建立胎儿正常发育保证体系的必要性。文章叙述了与孕妇健康和胎儿发育相关的因素,简要介绍了胎儿正常发育保证体系,最后展望了这一体系在中国... 详细信息

本文简要介绍了世界围产保健的现状,分析了中国目前在这一领域存在的问题,以及说明了在中国建立胎儿正常发育保证体系的必要性。文章叙述了与孕妇健康和胎儿发育相关的因素,简要介绍了胎儿正常发育保证体系,最后展望了这一体系在中国的发展前景。

关键词：围产期保健胎儿发育质量保证体系产科

Letter to the Editor: Exceptional Data in Paper on “The effect of meridian massage on bM, bMI, WC and HC in simple obesity patients: a randomized controlled trial”

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World Journal of Acupuncture-Moxibustion 2015年第1期25卷 66-67页

作者： Diana M.Thomas Andrew brown John A Dawson Peng Li steven b.heymsfield David b.Allison Department of Mathematics Montclair State University Office of Energetics and Nutrition Obesity Research Center University of Alabama at Birmingham Department of Nutrition Sciences Texas Tech University Pennington biomedical Research Center

Given the tremendous need for effective weight loss treatments, we read with interest the paper by Yan et al. and were intrigued by the reported finding that a form of massage produced weight loss in a randomized con... 详细信息

关键词：随机对照试验按摩 bMI 纸张编辑经络患者肥胖

Urinary Creatinine-Skeletal Muscle Mass Method:A Prediction Equation based on Computerized Axial Tomography

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biomedical and Environmental Sciences 1996年第2期9卷 185-190页

作者： ZI-MIAN WANG YUN-GAO SUN AND steven b. heymsfield (Department of Medicine, Obesity Research Center, St. Luke’s-Roosevelt Hospital, Columbia University College of Physicians and Surgeons,Amsterdam Ave. 14C New York, N. Y., USA)(Obesity Research Center, We Department of Medicine St. Luke's-Roosevelt Hospital Columbia University College of Physicians and Surgeons New York N.Y. USA.

A classic body composition method is estimation of total body skeletal muscle mass (SM, kg) from 24 h urinary creatinine excretion (Cr, g). Two types of prediction equations were suggested: one assumes a constant SM/Cr ratio; and the other assumes a highly variable SM/Cr ratio. We explored these two extreme possibilities by measuring SM with whole-body computerized axial tomography and collecting Cr during meat-free dietary conditions in 12 healthy young men. Prediction equations were developed in the men that fit these two equation types, SM = 21.8×Cr (SD and CV of SM/Cr ratio, 1.3 kg and 6.0%,respectively) and SM = 18.9 × Cr + 4.1 (r = 0.92, p = 2.55 × 10-5, and SEE = 1.9 kg). The validity of each model is reviewed. This is the first investigation of Cr-SM method using modern techniques for quantifying total body SM mass

关键词： Mass Cr body SM Urinary Creatinine-Skeletal Muscle Mass Method

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骨质疏松诊断技术的新进展

当代医学 2001年第1期7卷 18-21,14页

作者：阮祥燕齐久梅吴薇 steven b.heymsfield 北京妇产医院内分泌调节中心美国哥伦比亚大学医学院人体结构实验室

本文讨论了描述骨质疏松的数学方法,分析了双能X光骨密度仪测量的骨密度参数的物理意义,找出了以骨密度为指标的骨质疏松诊断标准造成误诊与漏诊的原因,介绍了骨强度指标-抗骨折能力的概念及其在临床上的应用。最后简单介绍了目前临床... 详细信息

本文讨论了描述骨质疏松的数学方法,分析了双能X光骨密度仪测量的骨密度参数的物理意义,找出了以骨密度为指标的骨质疏松诊断标准造成误诊与漏诊的原因,介绍了骨强度指标-抗骨折能力的概念及其在临床上的应用。最后简单介绍了目前临床上诊断骨质疏松的设备。

关键词：骨质疏松骨密度骨强度诊断

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异常热报告的确认

电化学（中英文） 2024年第2期30卷 46-51页

作者： steven b.Krivit Melvin H.Miles New Energy Times 369-B 3rd St.#556San RafaelCA94901USA University of La Verne(Retired) 19503rd StLa VerneCA 91750USA

本文首次确认Nathan Lewis及其合作者于1989年5月1日在美国马里兰州巴尔的摩举行的美国物理学会(APS)会议上所犯的关键计算错误。Lewis等人分析了Martin Fleischmann及其合作者报告的9轮实验中的热测量结果,并报告在没有催化复合的情况... 详细信息

本文首次确认Nathan Lewis及其合作者于1989年5月1日在美国马里兰州巴尔的摩举行的美国物理学会(APS)会议上所犯的关键计算错误。Lewis等人分析了Martin Fleischmann及其合作者报告的9轮实验中的热测量结果,并报告在没有催化复合的情况下每轮实验都显示出异常的热功率损失。而本文使用相同的原始数据,经过正确的计算,再次确认每轮实验都显示出异常的功率增益。因此,这些数据意味着可能存在一种能产生能量的新物理现象。

关键词：低能核反应 LENR 超热

Thermodynamic analysis of metal segregation in dual phase high entropy ceramics

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Journal of Materiomics 2024年第4期10卷 889-895页

作者： steven M.Smith II William G.Fahrenholtz Gregory E.Hilmas Stefano Curtarolo Missouri University of Science and Technology Materials Science and Engineering DepartmentRollaMO65409USA Duke University Department of Mechanical Engineering and Materials ScienceDurhamNC27708USA Duke University Center of Autonomous Materials DesignDurhamNC27708USA

Equilibrium Gibbs'free energy calculations were used to determine metal segregation trends between boride and carbide solid solutions containing two metals that are relevant to dual phase high entropy *** model predicted that Ti had the strongest tendency to segregate to the boride phase followed by Zr,Nb,Mo,V,Hf,and Ta,which matches experimental results of measured *** ratio of a metal in the carbide phase to the content of the same metal in the corresponding metal boride had a linear trend with the change in standard Gibbs'free energy of reaction for a metal carbide reacting with b_(4)C to produce its corresponding metal boride and *** proposed model was used to predict the changes in standard Gibbs'free energy for CrC→Crb_(2) to be−260 kJ and WC→Wb_(2) to be 148 kJ,which indicates that Cr has the strongest segregation to the boride and W has the strongest segregation to the *** proposed model can be used to estimate the segregation of metals in dual phase high entropy boride-carbide ceramics of any boride/carbide ratio or metal content.

关键词： Dual phase High entropy ceramic boride Carbide Thermodynamics

Multiple interface coupling on natural tourmaline enables high-efficiency removal of antibiotic:Superior property and mechanism

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Journal of Environmental Sciences 2024年第6期140卷 242-254页

作者： Jingjing Cui Xiangyu Liu Feifan Qie Chengzhe Xie Qingdong He Jian Liu steven L.Suib Wenbo Wang College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021China Department of Chemistry University of ConnecticutStorrsCT 06269-3060United States

Reasonably designing highly active,environmentally friendly,and cost-effective catalysts for efficient elimination of pollutants from water is desirable but ***,an efficient heterogeneous photo-Fenton catalyst tourmaline(TM)/tungsten oxide(WO_(3-x))(named TW10)containing tungsten/boron/iron(W/b/Fe)synergistic active centers and 90%of cheap natural tourmaline(TM)mineral rich in Fe and b *** TW10 catalyst can quickly activate peroxymonosulfate(PMS)to generate massive active free radicals,which may induce the rapid and efficient degradation of tetracycline(TC).The TW10/PMS/Visible light system can effectively degrade up to 98.7%of tetracycline(TC)in actual waters(***,Yellow River,and Yangtze River water),and the catalytic degradation rates reach 1.65,5.569,and 2.38 times higher than those of TM,WO_(3-x),and commercial P25(Degussa,Germany),*** addition,the catalyst can be recycled and reused multiple *** spin resonance spectroscopy(EPR),X-ray photoelectron spectroscopy(XPS),and liquid chromatograph-mass spectrometer(LC-MS)analyses confirm that the synergistic catalytic effect of W/b/Fe sites on the TW10 catalyst accelerates the electron transfer between Fe(Ⅱ)and Fe(Ⅲ),as well as between W(Ⅴ)and W(Ⅵ),and thus promotes the rapid degradation of *** catalytic reaction mechanism and degradation pathway of TC were *** work provides a feasible route for the design and development of new eco-friendly and efficient catalyst.

关键词： Tourmaline(TM) Fenton-like catalyst Tungsten oxide Peroxymonosulfate Antibiotic

Orientation bias of Self-Assembled Alkanes and Their Derivatives Under Dynamic Lateral Nanoconfinement Conditions

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CCS Chemistry 2024年第4期6卷 1024-1033页

作者： Conditions Lihua Yu Yuanzhi Xia Tianze Hu brent Daelemans steven De Feyter Department of Chemistry Division of Molecular Imaging and PhotonicsKU LeuvenB-3001 Leuven

Self-assembled molecular networks(SAMNs)formed on crystalline solid substrates result from the spontaneous arrangement of individual molecules into structured *** interaction between molecules and the substrate leads to a nonrandom orientation of SAMNs with respect to the substrate’s *** the case of graphite,the sixfold rotational symmetry of the substrate results in an equivalent rotational degeneracy in the orientation of *** this study,we explored how nanoconfinement,that is,the restriction of SAMN formation to nanometersized areas,known as nanocorrals,could impact and potentially alleviate the orientational degeneracy of SAMNs,with emphasis on the influence of molecule symmetry,size,and intermolecular *** this end,we investigated the orientation distribution of n-alkanes and functionalized alkanes within nanocorrals,which were fabricated using scanning tunneling microscopy lithography(nanoshaving).We observed lifting of orientational degeneracy for long alkanes,contrary to shorter alkanes,which did not exhibit this orientation ***,functionalized alkanes with hydrogen bonding groups demonstrated preferential alignment regardless of length,highlighting the significance of stabilizing intermolecular interactions in the alignment *** study discussed the underlying principles of the molecular packing process and shed light on the complexity of molecular self-assembly in nanoconfined spaces.

关键词： self-assembly confinement condition nanocorral orientation bias scanning tunneling microscopy