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酒精摄入、心脏生物标志物和心房颤动风险与不良结局

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中华高血压杂志 2021年第2期29卷 103-103页

作者：陈嘉睿(译) 练桂丽((审校) Csengeri D Sprünker NA Di Castelnuovo A Niiranen T Vishram-Nielsen JK Costanzo S S derberg S Jensen SM Vartiainen E donati mb Magnussen C Camen S Gianfagna F L chen ML Kee F Kontto J Mathiesen EB Koenig W Stefan B de Gaetano G J rgensen T Kuulasmaa K Zeller T Salomaa V Iacoviello L Schnabel RB 不详

酒精摄入和新发心房颤动相关性证据不一,尤其是在低剂量下。该研究评估欧洲队列在整个饮酒范围内酒精摄入、生物标志物和新发心房颤动的关系。方法和结果:在一个以社区为基础的汇集队列中,研究者随访107845人,以评估酒精摄入(酒精种类... 详细信息

酒精摄入和新发心房颤动相关性证据不一,尤其是在低剂量下。该研究评估欧洲队列在整个饮酒范围内酒精摄入、生物标志物和新发心房颤动的关系。方法和结果:在一个以社区为基础的汇集队列中,研究者随访107845人,以评估酒精摄入(酒精种类和饮酒方式)与新发心房颤动的关系。研究者收集经典心血管病危险因素和新发心力衰竭的信息,并检测生物标记物氨基末端脑钠肽前体和高敏肌钙蛋白I。

关键词：氨基末端脑钠肽前体酒精摄入心血管病危险因素生物标记物心房颤动饮酒方式不良结局生物标志物

Impacts of ozone on the biomass and yield of rice in open top chambers

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Journal of Environmental Sciences 2001年第2期13卷 233-236页

作者： Jin, mb Feng, ZW Zhang, FZ Chinese Acad Sci Ecoenvironm Sci Res Ctr Beijing 10085 Peoples R China

The impacts of different 03 concentration on the biomass and yield of rice were studied by using OTC-1 open-top chambers. Experimental treatments included the activated charcoal-filtered air. (CFA), 50 nl/L (CF50), 100 nl/L ( CF100) and 200 nl/L (CF200) concentrations of O-3. The O-3 treatments significantly decreased the total biomass per plant. The. elevated O-3 exposure resulted in a more decrease in the root growth than in the shoot growth. Assessments of yield characteristics at the final harvest revealed an O-3-induced decrease in the number of grains per plant, resulting from fewer ears per plant, fewer grains per ear and more unfilled grains per ear. The 1000 grain dry weight and the harvest index (HI) were not changed significantly under 50 nl/L or 100 nl/L O-3 exposure, but reduced by 17.0% and 4.8% by 200nl/L O-3 treatment, respectively. Compared to the CFA treatment, CF50, CF100 and CF200 treatments caused a 8.2%, 26.1%, 49.1% decrease of the grain yield per plant, and a 14.2%, 31.7%, 51.7% decrease of the total biomass per plant, respectively. Linear regression showed that the 7h - daily mean O-3 concentration exposure for 3 months ( July-September) and AOT40 ( cunulative exposure accumulation over threshold 40 nl/L) were well correlated with the relative grain yield. A yield loss of 10% was estimated to be at 46.9 nl/L O-3 for 7h-daily mean O-3 concentration exposure or at 12930nl/(L(.)h) O-3 for AOT40.

关键词： open-top chambers ozone rice biomass yield

Chiral Synthesis of the Key Intermediate of Diterpenoids

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Chinese Chemical Letters 1997年第11期8卷 949-950页

作者： Hao, XJ Node, mb Fuji, KR Chinese Acad Sci Kunming Inst Bot Kunming 650204 Peoples R China Kyoto Pharmaceut Univ Yamashima Ku Kyoto 607 Japan Kyoto Univ Inst Chem Res Uji 611 Japan

(-)-Methyl(4R, 5S, 10R)-14-methoxypodocarpa-8, 11, 13-triene-19-oate(1), which is the key intermediate for synthesis of diterpenoids, was synthesized from (R)-(+)-2-methyl-2-(2`-nitrovinyl)-delta-valerolactone(2).

关键词： Chiral Synthesis of the Key Intermediate of Diterpenoids

SEMI－EMPIRICAL　QUANTUM　CHEMISTRY　STUDY　ON　ELECTROCHEMICAL　REDUCTION　OF　DIMETHYLGLYOXIMATONICKEL

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Chinese Chemical Letters 1996年第7期7卷 643-646页

作者： Chen, mb Gao, K Ni, YM CHINESE ACAD SCI INST ORGAN CHEMSHANGHAI 200032PEOPLES R CHINA TONGJI UNIV DEPT CHEMSHANGHAI 200092PEOPLES R CHINA

The mechanism of the electrochemical reduction of the nickel(Ⅱ) complex dimethylglyoxime and ammonia is studied by means of INDO,energy localization and electrostatic potential methods.

关键词： SEMI EMPIRICAL DIMETHYLGLYOXIMATONICKEL CHEMISTRY

Enhancement of the group delay in quadratic coupling optomechanical systems subjected to an external force

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Chinese Physics B 2023年第12期32卷 325-331页

作者： Jimmi HervéTalla mbé Ulrich Chancelin Tiofack Demanou Christian Kenfack-Sadem Martin Tchoffo Research Unit of Condensed Matter Electronics and Signal ProcessingDepartment of PhysicsUniversity of DschangP.O.Box 67DschangCameroon African Institute for Mathematical Sciences P.O.Box 608LimbeCameroon

We theoretically study the effect of the quadratic coupling strength on optomechanical systems subjected to a continuous external force. Quadratic coupling strength originates from strong coupling between the optical and the mechanical degrees of freedom. We show that the quadratic coupling strength reduces the amplitude of the dispersion spectra at the resonance in both blue-and red-sideband regimes. However, it increases(decreases) the amplitude of the absorption spectrum in the blue-(red-)sideband regime. Furthermore, in both sideband regimes, the effective detuning between the pump and the cavity deviates with the quadratic coupling strength. Thereby, appropriate selection of the quadratic coupling strength results in an important magnification(in absolute value) of the group delay for both slow and fast light exiting from the optomechanical cavity.

关键词： slow and fast light optomechanical systems group delay quadratic coupling

Conformational Analysis of Two Diosgenyl Saponins

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Chinese Chemical Letters 1997年第9期8卷 785-788页

作者： Liu, MZ Li, C Yu, B Cheng, mb Feng, CL Hui, YZ CHINESE ACAD SCI SHANGHAI INST ORGAN CHEMSTATE KEY LAB BIOORGAN & NAT PROD CHEMSHANGHAI 200032PEOPLES R CHINA

Diosgenyl alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside (1) and Diosgenyl alpha-L-rhamnopyranosyl-(1-->2)-beta-D-xylopyranoside (2) were shown to be fascinating ''facial amphiphi... 详细信息

关键词： Chen MD Conformational Analysis of Two Diosgenyl Saponins

Mansonella ozzardi parasitic infestation in the orbit

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International Journal of Ophthalmology(English edition) 2017年第10期10卷 1630-1632页

作者： Princeton Lee Aruna Dharmasena Katherine mb Ajdukiewicz Sajid Ataullah Department of Oculoplastic Lacrimal and Orbital SurgeryManchester Royal Eye Hospital Department of Infectious Disease & Tropical Medicine North Manchester General Hospital

Mansonella ozzardi, one of many filarial nematodes exclusively found in parts of Latin America, is one of two Mansonella sp which cause mansonelliasis, an infestation first described by Sir Patrick Manson, the founder...

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Molecular biology of Barrett's esophagus and esophageal cancer:role of p53

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World Journal of Gastroenterology 1998年第4期4卷 5-7页

作者： Alan G. Casson, mb ChB MSc FRCSC FACS

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ＭｏｌｅｃｕｌａｒｂｉｏｌｏｇｙｏｆＢａｒｅｔ′ｓｅｓｏｐｈａｇｕｓａｎｄｅｓｏｐｈａｇｅａｌｃａｎｃｅｒ：ｒｏｌｅｏｆｐ５３ＡｌａｎＧ．Ｃａｓｓｏｎ，ＭＢＣｈＢＭＳｃＦＲＣＳＣＦＡＣＳＳｕｂｊｅｃｔｈｅａｄｉｎｇｓｅｓｏｐｈａｇｅａｌｎｅｏｐｌａｓ...

关键词： esophageal neoplasms/epidemiology adenocarcinoma Barrett’s esophagus p53 gene

Seasonal nutrient distribution in the Rupsha-Passur tidal river system of the Sundarbans mangrove forest,Bangladesh

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Ecological Processes 2014年第1期3卷 125-135页

作者： Shak mb Rahaman Sudhin K Biswas Md S Rahaman Alokesh K Ghosh Lipton Sarder SMS Siraj Sheikh S Islam Fisheries and Marine Resource Technology Discipline Khulna UniversityKhulna 9208Bangladesh Chemistry Department Comilla UniversityComilla 3500Bangladesh

Introduction:The Rupsha-Passur River System(RS)is one of the biggest and important river systems in the Sundarbans estuarine *** is the largest fresh water supplier into this mangrove forest.A comprehensive study was undertaken to evaluate the tidal and seasonal variations in nutrient concentrations(nitrate,phosphate,sulphate and ammonia)of the RS during October,2010(Post monsoon),February,2011(Dry winter)and August 2011(Monsoon).In-situ measurement and laboratory analysis were conducted to measure nutrients and other physico-chemical parameters at discrete water layers of five study points under different tidal ***:Following post monsoon,NH3–N concentration showed seasonal variation with increasing trend(0.0703 to 0.0803 mg/L)in dry winter and then significant dropping(0.013 to 0.019 mg/L)in monsoon *** field observation,no significant tidal variation in ammonia concentration was identified among the study *** monsoon and winter time observation recorded lower SO4 content(7.301 to 37.508 mg/L)at all the sampling stations while in monsoon period,most of the stations showed higher concentration up to 126.92 mg/*** to post monsoon season with comparatively higher PO4–P value(0.314 to 1.347 mg/L),winter and monsoon period sampling indicated low phosphate concentrations(0.045 to 0.5 mg/L)in the Rupsha-Passur *** of the study sites showed considerable tidal changes in phosphate value during post monsoon and monsoon season while only two stations went through tidal fluctuation in sulphate content during monsoon *** of NO3–N were found to fluctuate between 0.083 and 1.233 mg/L with no distinct seasonal distribution *** variation of NO3–N in the experimental sites was not so prominent during post monsoon period as of winter ***:Present study will serve as a basis for future hydrological and environmental studies in the world’s largest Sundarbans intertidal mangrove *** results i

关键词： Water quality Monsoon Aquatic Ecosystem Hydrodynamic environment Post monsoon