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中国果品研究 1989年第3期9卷 27-30,33页

作者： John M.Harvey C.Max Har ris Thomas A.Hanke preston l.hasrtsell 张光弟

包装材料对薰蒸剂的吸附,早已被认为是确定薰蒸处理效果的一个重要因素。用二溴乙烯处理柑桔,溴甲烷或二氧化硫处理葡萄,都可表现出包装吸附对薰蒸效果的影响。

关键词：鲜食葡萄葡萄品种薰蒸二溴乙烯处理效果二氧化硫含量牛皮纸浆箱型结合型箱纸板

Hepatocardiorenal syndrome in liver cirrhosis:Recognition of a new entity?

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World Journal of Gastroenterology 2024年第2期30卷 128-136页

作者： Henry H l Wu Amina Rakisheva Arvind Ponnusamy Rajkumar Chinnadurai Renal Research Kolling Institute of Medical ResearchRoyal North Shore Hospital&The University of SydneySt.Leonards(Sydney)2065New South WalesAustralia Department of Cardiology City Cardiological CenterAlmaty 050000Kazakhstan Department of Renal Medicine Royal Preston HospitalPreston PR29HTUnited Kingdom Donal O’Donoghue Renal Research Centre&Department of Renal Medicine Northern Care Alliance National Health Service Foundation TrustSalford M68HDUnited Kingdom

Emerging evidence and perspectives have pointed towards the heart playing an important role in hepatorenal syndrome(HRS),outside of conventional understanding that liver cirrhosis is traditionally considered the sole origin of a cascade of pathophysiological mechanisms directly affecting the kidneys in this *** the absence of established heart disease,cirrhotic cardiomyopathy may occur more frequently in those with liver cirrhosis and kidney *** is a specific form of cardiac dysfunction characterized by blunted contractile responsiveness to stress stimuli and altered diastolic relaxation with electrophysiological *** the clinical description of these potential cardiac-related complications of the liver,the role of the heart has traditionally been an overlooked aspect of circulatory dysfunction in *** from a physiological sense,temporality(prior onset)of cardiorenal interactions in HRS and positive effects stemming from portosystemic shunting demonstrated an important role of the heart in the development and progression of kidney dysfunction in cirrhotic *** this review,we discuss current concepts surrounding how the heart may influence the development and progression of HRS,and the role of systemic inflammation and endothelial dysfunction causing circulatory dysfunction within this *** temporality of heart and kidney dysfunction in HRS will be *** a subgroup of patients who receive portosystemic shunting,the dynamics of cardiorenal interactions following treatment is *** research to determine the unknowns in this topic is anticipated,hopefully to further clarify the intricacies surrounding the liver-heart-kidney connection and improve strategies for management.

关键词： Hepatorenal syndrome Cardiorenal syndrome Cirrhosis Cardiac dysfunction Circulatory dysfunction

Postphalloplasty urinary function test:an observational study of novel outcome instrument to capture urinary dysfunction and quality of life after phalloplasty

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Asian Journal of Andrology 2022年第6期24卷 570-574页

作者： James l liu lauren Eisenbeis Stephanie preston Arthur l Burnett Heather N DiCarlo Devin Coon The James Buchanan Brady Urological Institute and Department of Urology Johns Hopkins University School of MedicineBaltimoreMD 21287USA Department of Plastic and Reconstructive Surgery Johns Hopkins School of MedicineBaltimoreMD 21287USA Johns Hopkins Center for Transgender Health Johns Hopkins MedicineBaltimoreMD 21287USA Department of Surgery University of Texas SouthwesternDallasTX 75370USA

Due to growing social acceptance,there has been an increasing number of gender-affirmation surgeries performed in North *** research in this patient population focuses on surgical outcomes and advancing ***,little work has been done to study functional *** better evaluate urinary dysfunction in the postphalloplasty trans men patient population,our group developed a novel patient-reported outcome instrument-the postphalloplasty urinary function test(PP UFT)and protocol to measure postvoid urethral volume(PVUR),and we present our preliminary *** conducted a cross-sectional pilot study in a cohort of 15 adult trans men who had undergone phalloplasty with urethral lengthening surgery between 2018 and *** had stable urinary function via the neophallus at the time of *** filled out the PP UFT and were asked to record their PVUR as per our *** average PP UFT score was 8.9 out of 40 and the average quality-of-life(QOl)score was *** dribbling constituted the major complaint and on average comprised 63.2%of the reported PP UFT *** average PVUR was 2.2 ml(range:0.5-5.6 ml).There was a positive correlation between higher PP UFT and worse-reported quality of life(Ple urology have limitations for accurately capturing urinary dysfunction in this specific patient *** combination of PP UFT and PVUR measurement offers potential for quantifying urinary function and quality of life in patients who undergo *** studies will validate these instruments.

关键词： gender affirmation gender surgery phalloplasty postvoid urethral residual urethral lengthening urinary dysfunction

Novel concepts in radiation-induced cardiovascular disease

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World Journal of Cardiology 2016年第9期8卷 504-519页

作者： Jason R Cuomo Gyanendra K Sharma preston D Conger Neal l Weintraub Department of Medicine Medical College of Georgia at Augusta University Department of Medicine Division of CardiologyMedical College of Georgia at Augusta University

Radiation-induced cardiovascular disease(RICVD) is the most common nonmalignant cause of morbidity and mortality among cancer survivors who have undergone mediastinal radiation therapy(RT).Cardiovascular complications include effusive or constrictive pericarditis,cardiomyopathy,valvular heart disease,and coronary/vascular *** are pathophysiologically distinct disease entities whose prevalence varies depending on the timing and extent of radiation exposure to the heart and great *** refinements in RT dosimetry and shielding will inevitably limit future cases of RICVD,the increasing number of long-term cancer survivors,including those treated with older higher-dose RT regimens,will ensure a steady flow of afflicted patients for the foreseeable ***,there is a pressing need for enhanced understanding of the disease mechanisms,and improved detection methods and treatment *** characterized mechanisms responsible for the establishment of chronic fibrosis,such as oxidative stress,inflammation and epigenetic modifications,are discussed and linked to potential treatments currently under *** imaging modalities may serve as powerful screening tools in RICVD,and recent research and expert opinion advocating their use is *** arguing for the aggressive use of percutaneous interventions,such as transcutaneous valve replacement and drug-eluting stents,are examined and considered in the context of prior therapeutic *** and its treatment options are the subject of a rich and dynamic body of research,and patients who are at risk or suffering from this disease will benefit from the care of physicians with specialty expertise in the emerging field of cardiooncology.

关键词： Radiotherapy Radiation Cardiovascular Atherosclerosis Cardiomyopathy Pericarditis Valvular Hodgkin Breast cancer Radiation fibrosis

Increased β-Cyanoalanine Nitrilase Activity Improves Cyanide Tolerance and Assimilation in Arabidopsis

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Molecular Plant 2014年第1期7卷 231-243页

作者： Brendan O'leary GaU M. preston lee J. Sweetlove Department of Plant Sciences University of Oxford Oxford UK

Plants naturally produce cyanide （CN） which is maintained at low levels in their cells by a process of rapid assimilation. However, high concentrations of environmental CN associated with activities such as industrial pollution are toxic to plants. There is thus an interest in increasing the CN detoxification capacity of plants as a potential route to phytoremediation. Here, Arabidopsis seedlings overexpressing the Pseudomonas fluorescens β-cyanoalanine nitrilase pinA were compared with wild-type and a β-cyanoalanine nitrilase knockout line （△Atnit4） for growth in the presence of exogenous CN. After incubation with CN, ＋PfpinA seedlings had increased root length, increased fresh weight, and decreased leaf bleaching compared with wild-type, indicating increased CN tolerance. The increased tolerance was achieved without an increase in β-cyanoalanine synthase activity, the other enzyme in the cyanide assimilation pathway, suggesting that nitrilase activity is the limiting factor for cyanide detoxification. labeling experiments with [^13C] KCN demonstrated that the altered CN tolerance could be explained by differences in flux from CN to Asn caused by altered β-cyanoalanine nitrilase activity. Metabolite profiling after CN treatment provided new insight into downstream metabolism, revealing onward metabolism of Asn by the photorespiratory nitrogen cycle and accumulation of aromatic amino acids.

关键词： cyanide β-cyanoalanine cyanide detoxification asparagine metabolism nitrilase

Shock standards Cu, Ag, Ir, and Pt in a wide pressure range

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Matter and Radiation at Extremes 2023年第4期8卷 37-46页

作者： leonid Burakovsky Dean l.preston Scott D.Ramsey Charles E.Starrett Roy S.Baty los Alamos National laboratory Los AlamosNew Mexico 87545USA

Although they are polymorphic(multiphase)materials,both copper and silver are reliable Hugoniot standards,and thus it is necessary to establish an accurate analytic model of their principal *** we present analytic forms of their principal Hugoniots,as well as those of iridium and platinum,two“pusher”standards for shock-ramp experiments,over a wide range of *** are based on our new analytic model of the principal Hugoniot[Burakovsky et al.,***.132,215109(2022)].Comparison of the four Hugoniots with experimental and independent theoretical data(such data exist to very high pressures for both copper and silver)demonstrates excellent ***,the new model for copper and silver can be considered as providing the corresponding Hugoniot standards over a wide pressure *** also suggest an approach for calculating the Grüneisen parameter along the Hugoniot and apply it to copper as a prototype,and our results appear to be in good agreement with the available data.

关键词： silver copper analytic

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大豆皮在奶牛、肉牛和猪饲养中的应用(1)

饲料广角 2005年第7期 21-22页

作者： R.l.preston 美国得州理工大学

前言大豆作为蛋白质来源已有五千多年的历史.中国首先提倡种植大豆,本世纪初传入美国.起初,人们主要关心大豆的含油量,提出油以后的大豆粕和大豆皮仅仅是副产品.不久,大豆粕中蛋白质的优异品质被人们所认识.从此,大豆粕成了猪、鸡日粮... 详细信息

前言大豆作为蛋白质来源已有五千多年的历史.中国首先提倡种植大豆,本世纪初传入美国.起初,人们主要关心大豆的含油量,提出油以后的大豆粕和大豆皮仅仅是副产品.不久,大豆粕中蛋白质的优异品质被人们所认识.从此,大豆粕成了猪、鸡日粮中补充蛋白质的主要来源.

关键词：大豆皮猪饲养奶牛应用肉牛蛋白质来源大豆粕本世纪含油量副产品鸡

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大豆粕和整粒大豆在反刍动物饲养中的应用

饲料广角 2005年第6期 19-22页

作者： R.l.preston 周鼎年美国得州理工大学

前言大豆作为人膳食中的蛋白质来源已有5 000多年的历史(Central Soya Co.,Inc.,1990).公元前2 800年左右,神农氏首先提倡种植大豆,本世纪初传人美国.起初,美国主要关心大豆的含油量,提出油以后的大豆粕和大豆皮仅仅是副产品.不久,大豆... 详细信息

前言大豆作为人膳食中的蛋白质来源已有5 000多年的历史(Central Soya Co.,Inc.,1990).公元前2 800年左右,神农氏首先提倡种植大豆,本世纪初传人美国.起初,美国主要关心大豆的含油量,提出油以后的大豆粕和大豆皮仅仅是副产品.不久,大豆粕中蛋白质的优异品质被人们所认识,从此,大豆粕成了猪、鸡日粮中补充蛋白质的主要来源.全世界来说,动物饲料中所用的所有植物性饼粕中62%为大豆粕(其次为油菜籽粕,占12%);在美国,大豆粕总量中用于猪、鸡日粮的份额分别占52%和29%(Chndler,1999).

关键词：大豆粕饲养反刍动物大豆皮种植含油量品质蛋白质来源膳食左右

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怎样预示孔隙压力

国外地质勘探技术 1984年第8期 39-43页

作者： Dr.preston l.Moore 宋希雄

钻孔孔内情况主要通过监测设备来掌握,这些监测设备包括:(1)泵压表,(2)扭矩表,(3)泥浆池液面指示器,(4)泥浆性能测试仪器,(5)钻速记录器,(6)钻压指示器。只有当钻头下的岩屑能立即排走,才能清楚地了解孔内情况。孔底清洁的重要意义

关键词：孔隙压力增加值岩石钻速泥浆比重钻井液密度

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弹性基体软固结磨料磨具的材料去除机理

中国表面工程 2024年第1期37卷 192-204页

作者：王家庆郭磊刘天罡郭万金吕景祥靳淇超长安大学道路施工技术与装备教育部重点实验室西安710064 重庆大学机械传动国家重点实验室重庆400044 中天引控科技股份有限公司西安710010

基于弹性磨具的磨抛工艺为硬脆材料超精密加工效率与加工质量的兼顾平衡提供了新的解决思路,但其磨抛过程的材料去除机理尚未明确。为研究弹性磨抛过程中的材料去除行为,以硅橡胶作为磨具基体材料,混合微米级金刚石磨料制备弹性基体软... 详细信息

基于弹性磨具的磨抛工艺为硬脆材料超精密加工效率与加工质量的兼顾平衡提供了新的解决思路,但其磨抛过程的材料去除机理尚未明确。为研究弹性磨抛过程中的材料去除行为,以硅橡胶作为磨具基体材料,混合微米级金刚石磨料制备弹性基体软固结磨料磨具,利用有限元仿真分析方法研究弹性基体软固结磨粒的受力状态,结合接触力学与运动学分析建立考虑单颗磨粒磨损行为与有效磨粒数量的材料去除模型,通过石英玻璃试件的弹性磨抛加工试验验证预测模型的准确性。结果表明:石英玻璃试件的材料去除率随着磨抛压力、主轴转速、磨具偏角的增大而显著增加,而磨料粒径对其影响程度较小;当工艺参数组合为磨料粒径100μm、磨抛压力7 N、主轴转速1500 r/min、磨具偏角20°时,经60 min磨抛后,工件已加工表面粗糙度由1.069μm降至0.089μm,材料去除率为8.893×10^(8)μm^(3)/min;该试验条件下,建立的材料去除模型预测准确度相比preston经典模型提高36.7%。研究成果可为实现硬脆材料的确定性材料去除提供技术支持和理论依据。

关键词：弹性基体磨具软固结磨料磨削抛光材料去除效率多因素模型