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甜菜种子中线粒体的纯化研究

中山大学学报（自然科学版） 2000年第3期39卷 78-81页

作者：宋松泉 Kenneth M.FREDLUND ian M.MφLLER 中山大学生命科学学院广东广州510275 Department of Seed Physiology Novartis Seeds AB Department of Plant Physiology Lund University

吸胀 2 4h的甜菜 (BetavulgarisL cv Loke)种子线粒体通过差速离心和修改的Percoll梯度 (上部为 0 3mol/L甘露醇 ,下部为 0 3mol/L蔗糖 )被纯化 .线粒体位于Percoll梯度的上部 ,大约 30～ 35mL处 .细胞色素c氧化酶 (线粒体的标记酶 )... 详细信息

吸胀 2 4h的甜菜 (BetavulgarisL cv Loke)种子线粒体通过差速离心和修改的Percoll梯度 (上部为 0 3mol/L甘露醇 ,下部为 0 3mol/L蔗糖 )被纯化 .线粒体位于Percoll梯度的上部 ,大约 30～ 35mL处 .细胞色素c氧化酶 (线粒体的标记酶 )活性、苹果酸脱氢酶活性和蛋白质含量主要分布在此部位 .

关键词：线粒体纯化 Percoll梯度甜菜种子

影响老年吸入性肺炎患者短期预后的危险因素分析

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中华急诊医学杂志 2019年第6期28卷 743-747页

作者：田玮丁宁首都医科大学附属北京同仁医院急诊科 100730

目的探讨急诊收治的老年吸入性肺炎患者的营养状况、感染严重程度等对短期预后的影响,进行危险因素的评价。方法回顾性分析2015年1月至2018年3月北京同仁医院急诊科收治的老年吸入性肺炎患者116例,评估入院时患者营养评分、PSI(pneumoni... 详细信息

目的探讨急诊收治的老年吸入性肺炎患者的营养状况、感染严重程度等对短期预后的影响,进行危险因素的评价。方法回顾性分析2015年1月至2018年3月北京同仁医院急诊科收治的老年吸入性肺炎患者116例,评估入院时患者营养评分、PSI(pneumonia severity index)评分及BMI(body mass index)值,收集白细胞总数(WBc)、中性粒细胞比例,高敏c反应蛋白、降钙素原(PcT)、淋巴细胞总数、血清白蛋白、血红蛋白、总胆固醇、甘油三脂、胆碱酯酶(chE)等各项临床指标,所有患者以入院第30天为节点,根据预后分为治愈及好转组和死亡组。结果BMI、白蛋白、胆碱酯酶、血红蛋白值在死亡组明显低于治愈及好转组,两组间差异有统计学意义(Pc反应蛋白、降钙素原在死亡组明显高于治愈及好转组,两组间差异有统计学意义(Pc回归进行分析,白细胞总数、胆碱酯酶、PSI评分、营养评分四个指标在多因素分析中具有统计学意义。影响程度由高到低依次为营养评分(1.945),WBc(1.152),PSI(1.032),胆碱酯酶(0.999)。结论老年吸入性肺炎患者的营养状况、炎症感染的严重程度等因素对患者预后有显著影响,因此在患者入院时应纠正贫血、营养不良,积极控制感染,重点要关注患者营养评分、PSI评分、白细胞总数及胆碱酯酶水平,均为影响患者预后的关键因素。

关键词：老年人吸入性肺炎预后营养危险因素

Pulse generation with ultra-superluminal pulse propagation in semiconductor heterostructures by superradiant-phase transition enhanced by transient coherent population gratings

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Light(Science & Applications) 2016年第1期5卷 737-743页

作者： Peter P Vasil’ev Richard V Penty ian H White centre for Photonic Systems Department of EngineeringUniversity of CambridgeCambridge CB30FAUK Quantum Electronics Division PN Lebedev Physical InstituteMoscow 119991Russia

This paper reports the observation of ultra-superluminal pulse propagation in multiple-contact semiconductor heterostructures in a superradiant emission regime,and shows definitively that it is a different class of emission from conventional spontaneous or stimulated *** population gratings induced in the semiconductor medium under strong electrical pumping have been shown to cause a major decrease of the group refractive index,in the range of 5–40%.This decrease is much greater than that caused by conventional carrier depletion or chirp *** decrease in refractive index in turn causes faster-than-c propagation of femtosecond *** measurement also proves the existence of coherent amplification of electromagnetic pulses in semiconductors at room temperature,the coherence being strongly enhanced by interactions of the light with coherent transient gratings locked to carrier *** pulse-generation technique is anticipated to have great potential in applications where highly coherent femtosecond optical pulses must be generated on demand.

关键词： phase transition population grating superradiance superluminal propagation

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视频游戏让失业者玩起了加密货币

商业周刊（中文版） 2021年第17期 60-61页

作者： Kristine Servando ian c Sayson 简远(译) 不详

投资者将其视为引领人们获得加密货币和非同质化代币的切入口。批评者认为这是一种脆弱的商业模式,有可能被滥用菲律宾IT分析师文森特·加勒特(Vincent Gallarte)今年7月被解雇时,他找到了一根不同寻常可以解决财务问题的救命稻草:一款... 详细信息

投资者将其视为引领人们获得加密货币和非同质化代币的切入口。批评者认为这是一种脆弱的商业模式,有可能被滥用菲律宾IT分析师文森特·加勒特(Vincent Gallarte)今年7月被解雇时,他找到了一根不同寻常可以解决财务问题的救命稻草:一款用加密货币奖励玩家的在线游戏。该游戏有点像是宝可梦(Pokémon),需要玩家进行探索和战斗。刚开始的那两周,加勒特赚了超过3.7万比索(合732美元),是他“现实工作”收入的三倍。

关键词：视频游戏加密货币文森特在线游戏商业模式分析师失业者玩家

Applications of multi-nuclear magnetic resonance spectroscopy at 7T

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World Journal of Radiology 2011年第4期3卷 105-113页

作者： Mary c Stephenson Frances Gunner Antonio Napolitano Paul L Greenhaff ian A MacDonald Nadeem Saeed William Vennart Susan T Francis Peter G Morris The Sir Peter Mansfield Magnetic Resonance centre School of Physics and AstronomyUniversity of Nottingham School of Biomedical Sciences University of Nottingham Medical School Academic Radiology University of Nottingham Molecular Medicine PfizerSandwich

AIM: To discuss the advantages of ultra-high field (7T) for 1H and 13c magnetic resonance spectroscopy (MRS) studies of ***: Measurements of brain metabolites were made at both 3 and 7T using 1H MRS. Measurements of glycogen and lipids in muscle were measured using 13c and 1H MRS ***: In the brain, increased signal-to-noise ratio (SNR) and dispersion allows spectral separation of the amino-acids glutamate, glutamine and γ-aminobutyric acid (GABA), without the need for sophisticated editing sequences. Improved quantification of these metabolites is demonstrated at 7T relative to 3T. SNR was 36% higher, and measurement repeatability (% coefficients of variation) was 4%, 10% and 10% at 7T, vs 8%, 29% and 21% at 3T for glutamate, glutamine and GABA respectively. Measurements at 7T were used to compare metabolite levels in the anterior cingulate cortex (Acc) and insula. creatine and glutamate levels were found to be significantly higher in the insula compared to the Acc (P cle, the increased SNR and spectral resolution at 7T enables interleaved studies of glycogen (13c) and intra-myocellular lipid (IMcL) and extra-myocellular lipid (EMcL) (1H) following exercise and re-feeding. Glycogen levels were significantly decreased following exercise (-28% at 50% VO2 max; -58% at 75% VO2 max). Interestingly, levels of glycogen in the hamstrings followed those in the quadriceps, despite reduce exercise loading. No changes in IMcL and EMcL were found in the ***: The demonstrated improvements in brain and muscle MRS measurements at 7T will increase the potential for use in investigating human metabolism and changes due to pathologies.

关键词： Magnetic resonance spectroscopy 13c 1H 7 Tesla Glutamate Glutamine γ-aminobutyric acid

二维应变和应变率成像技术监测心脏移植术后急性排异反应

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中国医学影像技术 2009年第7期25卷 1179-1182页

作者：何怡华李治安谷孝艳 Nixon J V(ian) 首都医科大学附属北京安贞医院超声诊断科北京100029 弗吉尼亚联邦大学心脏内科里士满23298

目的探讨超声心动图二维应变和应变率成像技术在监测心脏移植术后急性排异反应方面的价值。方法对25例心脏移植患者在活检12h内行超声心动图检查。急性排异反应0级为A组(n=10),急性排异反应Ⅰa～Ⅰb级为B组(n=8),急性排异反应≥Ⅱ级为c... 详细信息

目的探讨超声心动图二维应变和应变率成像技术在监测心脏移植术后急性排异反应方面的价值。方法对25例心脏移植患者在活检12h内行超声心动图检查。急性排异反应0级为A组(n=10),急性排异反应Ⅰa～Ⅰb级为B组(n=8),急性排异反应≥Ⅱ级为c组(n=7)。正常对照组为D组(n=30)。应用二维应变和应变率成像测量收缩期各室壁纵向、径向及环向应变及应变率。对各数据进行组间比较,并进行统计学分析。结果二维应变应变率分析:A、B、c组与D组比较:室间隔基底段收缩期纵向应变、二尖瓣水平前间隔环向应变率、二尖瓣水平所有节段的径向应变均明显减低(P<0.05)。结论二维应变和应变率成像技术的径向应变能早期、敏感地反映出≥Ⅱ级心脏移植急性排异反应患者的心脏收缩功能变化,可以作为心脏移植术后急性排异反应的筛查指标。

关键词：超声心动描记术应变应变率心脏移植急性排异反应

Functional Electrical Stimulation of Peroneal Muscles on Balance in Healthy Females

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cyborg and Bionic Systems 2021年第1期2021卷 79-86页

作者： Zoe A.Bamber Wei Sun Rhea S.Menon Patrick c.Wheeler ian D.Swain Daniel T.P.Fong National centre for Sport and Exercise Medicine School of SportExercise and Health SciencesLoughborough UniversityLoughboroughUK Division of Orthopaedics Trauma and Sports MedicineSchool of MedicineFaculty of Medicine and Health SciencesUniversity of NottinghamNottinghamUK Shandong Sport University JinanShandongChina Department of Sport and Exercise Medicine University Hospitals of Leicester NHS TrustLeicesterUK The Faculty of Science and Technology Bournemouth UniversityPooleDorsetUK

Balance improvement could contribute to ankle stability for the prevention of ankle *** electrical stimulation(FES)is an effective way of augmenting muscle activity and improving *** study investigated the effect of FES of peroneal muscles on single-and double-leg *** healthy females(age=23:1±1:6 years,height=1:63±0:07m,and weight=63:7±9:9 kg)performed single-and double-leg standing balance tests with eyes open and closed before and after 15-minute FES intervention during treadmill running at a comfortable,self-selected *** of peroneal muscles was provided bilaterally,using an Odstock Dropped Foot *** total excursion of the centre of pressure(cOP)was calculated to assess the standing balance control *** total excursion of cOP in single-and double-leg stance with eyes open reduced significantly after FES intervention by 14.7%(pclosed condition exhibited a 12.7%(p=0:002)reduction in single-leg stance but did not significantly change in double-leg stance(p>0:05).Limb preference did not account for balance *** significant difference in total excursion of cOP was found between preferred and less preferred limbs with both visual conditions(p>0:05).FES of peroneal muscles improved standing balance control with eyes open in double-leg and single-leg stance and with eyes closed in double-leg *** improvements in balance control with FES treatment did not vary concerning limb preference.

关键词： prevention stimulation Functional

SHui, an EU-chinese cooperative project to optimize soil and water management in agricultural areas in the ⅩⅪ century

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International Soil and Water conservation Research 2020年第1期8卷 1-14页

作者： José A.Gómez Alon Ben-Gal Juan J.Alarcón Gabrielle De Lannoy Shannon de Roos Tomá(s)Dostál Elias Fereres Diego S.Intrigliolo Josef Krása Andreas Klik Gunther Liebhard Reinhard Nolz Aviva Peeters Elke Plaas John N.Quinton Rui Miao Peter Strauss Weifeng Xu Zhiqiang Zhang Funing Zhong David Zumr ian c.Dodd Institute for Sustainable Agriculture IASCSICAvda Menendez Pidal S/NCordobaSpain Agricultural Research Organization Gilat Research CenterIsrael centro de Edafología y Biología Aplicada Del Segura(cSIc) Dept.RiegoMurciaSpain Department of Earth and Environmental Sciences KU LeuvenHeverleeBelgium czech Technical University in Prague Faculty of Civil Engineering.CVUTPragueCzech Republic Agronomy Department University of CordobaCordobaSpain University of Agricultural Sciences Vienna(BOKU) ViennaAustria TerraVision Lab Midreshet Ben-GurionIsrael Georg-August-Universitat Gottingen Germany centre for Sustainable Agriculture Lancaster Environment CentreLancaster UniversityUK center for Plant Water-Use and Nutrition Regulation and college of Life Sciences Joint International Research Laboratory of Water and Nutrient in CropsFujian Agriculture and Forestry UniversityFuzhouChina Institute for Land and Water Management Research Federal Agency for Water ManagementPetzenkirchenAustria college of Soil and Water conservation Beijing Forestry UniversityBeijingChina college of Economics and Management Nanjing Agricultural UniversityNAUNanjingChina

This article outlines the major scientific objectives of the SHui project that seeks to optimize soil and water use in agricultural systems in the EU and china,by considering major current scientific challenges in this ***(for Soil Hydrology research platform underpinning innovation to manage water scarcity in European and chinese cropping systems)is large cooperative project that aims to provide significant advances through transdisciplinary research at multiple scales(plot,field,catchment and region).This paper explains our research platform of long-term experiments established at plot scale,approaches taken to integrate crop and hydrological models at field scale;coupled crop models and satellite-based observations at regional scales;decision support systems for specific farming situations;and the integration of these technologies to provide policy recommendations through socio-economic analysis of the impact of soil and water saving *** also outlines the training of stake-holders to develop a basic common curriculum despite the subject being distributed across different disciplines and *** such,this article provides a review of major challenges for improving soil and water use in EU and china as well as information about the potential to access information made available by SHui,and to allow others to engage with the project.

关键词： Yield Sustainability cropping cooperation

A Survey of the Experience and Impact of Acute Upper Respiratory Tract Infections on People in Six countries in the 2011/2012 common cold and Flu Season

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Open Journal of Respiratory Diseases 2013年第4期3卷 175-187页

作者： John David Hull ian Paul Barton Jennifer Torgersen christine Marie McNeil Greater London Innovation centre Procter & Gamble Egham UK Ipsos Marketing Cincinnati USA Mason Business centre Procter & Gamble Cincinnati USA

Introduction: Acute Upper Respiratory Tract Infections (URTIs) are the most common infectious diseases of humankind. While usually mild and self-limiting, they are characterized by a series of simultaneously occurring symptoms/ signs that are sufficiently disruptive to sufferers’ normal activities in which medication is frequently sought. While the literature has many examples of epidemiological studies on these infections, there are few reports on patient experience and impact. This study was designed to investigate these aspects of common cold/Flu across six countries. Methods: A minimum of 500 adults aged 18 and older were recruited in each of six countries (Brazil, china, Germany, India, Russia, and the US) using customary survey research sampling techniques. Single 30-minute (online) or 40-minute door-to-door quantitative questionnaires with c. 50 questions were completed with each participant by the global research firm Ipsos. Main Findings: Across countries, incidence and seasonality of infections reported to this study were consistent with published data. There appears to be a need for patient education on the causes and transmission routes of respiratory infections. Getting good quality sleep and being able to continue with daily activities as an infection resolves are significant drivers to therapy. The most common non-prescription therapies reported were multi-ingredient products in line with the simultaneously occurring multi-symptom nature of the condition(s). conclusions: This study indicated that acute URTIs exert a significant deleterious effect on sufferers. Public health education, possibly best undertaken by Pharmacists has the potential to impact the extent of virus transmission by ensuring that people know the true cause of the infection, how it is transmitted and how best to combat this. The several simultaneously occurring symptoms encourage sufferers to seek multi-ingredient remedies to allow them to continue with normal activities as their i

关键词： common cold Upper Respiratory Tract Infections common cold Survey