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1多重劣化机制作用下混凝土的性能和耐久性(英文)显示文摘基于近年来芬兰VT技术研究中心在混凝土性能和耐久性方面的研究成果,对多重劣化机制共同作用下混凝土耐久性能表现进行了综述。这些研究是建立在30余年来有关混凝土耐久性的研究结果之上,包括15年的现场暴露实验数据,有关混凝土耐久性能是通过实验室加速实验结果和现场暴露实验结果共同评价的。结果显示,实验室的单一因素作用下的混凝土耐久性加速劣化结果与多因素共同作用下的暴露实验和工程现场测试结果有很大的差异。现场测试能够获得较长期的混凝土耐久性结果,这可以用来校准和验证混凝土耐久性和寿命预测模型,并引导继续对多因素共同作用下混凝土的耐久性能进行更全面深入的研究。Erika HOLT Miguel FERREIRA Hannele KUOSA Markku LEIVO 2015硅酸盐学报2015,43,10:13
2中国大陆地区精神分裂症患者奥氮平治疗引起体质量增加的相关因素分析显示文摘目的 分析中国大陆地区精神分裂症患者奥氮平治疗期间体质量增加的相关因素.方法 采用事后分析方法,对1项多国家及地区关于奥氮平治疗的观察性研究中国大陆地区330例精神分裂症患者的临床数据进行分析.结果 奥氮平治疗6个月,中国大陆地区患者平均体质量增加(4.5±4.0)kg,145例(47.2%)患者出现有临床意义的体质量增加(CSWG);其中,94例(29.6%)患者在治疗2个月后出现早期CSWG,其6个月时体质量增加的总体幅度(7.5 kg)大于无早期CSWG患者(2.7 kg),二者比较差异有统计学意义(P〈0.01).有10项因素与治疗中体质量增加相关,分别为思想沉湎于食物(5.1 kg)、晚上吃零食(5.4 kg)、需过量进食方有饱感(4.9 kg)、进食红肉(5.0 kg)、餐后有舒适的饱感(5.0 kg)、每天的连续行走量(4.9 kg)、最主要进餐场所(4.9 kg)、社交活动(5.6 kg)、性别和进餐规律性(男性5.1 kg,女性4.5 kg,进餐无规律5.0 kg).结论 思想沉湎于食物、晚上吃零食、需过量进食方有饱感、进食红肉、餐后有舒适的饱感、每天的连续行走量、最主要进餐场所、社交活动、性别和进餐规律性与中国大陆地区精神分裂症患者奥氮平治疗期间体质量相关.昂秋青 唐济生 赵靖平 胡建 江开达 李惠春 李鸣 王刚 王高华 谢世平 杨甫德 张晋碚 Pritibha Singh Susanna Holt Tamás Treuer 2011中华精神科杂志2011,44,3:13
3Minimally invasive procedures on the lumbar spine显示文摘Degenerative disease of the lumbar spine is a common and increasingly prevalent condition that is often implicated as the primary reason for chronic low back pain and the leading cause of disability in the western world. Surgical management of lumbar degenerative disease has historically been approached by way of open surgical procedures aimed at decompressing and/or stabilizing the lumbar spine. Advances in technology andsurgical instrumentation have led to minimally invasive surgical techniques being developed and increasingly used in the treatment of lumbar degenerative disease. Compared to the traditional open spine surgery, minimally invasive techniques require smaller incisions and decrease approach-related morbidity by avoiding muscle crush injury by self-retaining retractors, preventing the disruption of tendon attachment sites of important muscles at the spinous processes, using known anatomic neurovascular and muscle planes, and minimizing collateral soft-tissue injury by limiting the width of the surgical corridor. The theoretical benefits of minimally invasive surgery over traditional open surgery include reduced blood loss, decreased postoperative pain and narcotics use, shorter hospital length of stay, faster recover and quicker return to work and normal activity. This paper describes the different minimally invasive techniques that are currently available for the treatment of degenerative disease of the lumbar spine.Branko Skovrlj Jeffrey Gilligan Holt S Cutler Sheeraz A Qureshi 2015World Journal of Clinical Cases2015,3,1:8
4Importance of sperm morphology during sperm transport and fertilization in mammals显示文摘在自然或人工的授精以后,精子从免职的地点开始一次旅行到授精的地方。然而,仅仅扔的精子的一个小子集达到他们的目标:到达并且使肥沃卵。涉及控制精子运输和授精的因素包括女繁殖的道环境,房间房间相互作用,基因表示,和 phenotypic 精子特点。一些授精的重要决定因素被知道(即,活动性或 DNA 地位) ,但是许多精子特点仍然是难懂的。一个例子在在向卵母细胞的女生殖道以内的运输之上是精子尺寸和形状的影响。在精子尺寸和活动性之间的生物物理的协会可以通过女繁殖的道影响精子的前进,但是无常有关精子形态学怎么,并且是否仅仅影响授精过程留下精子尺寸本身被包含。而且,如此的解释不允许女道能够,根据他们的形态学区分肥沃的精子的可能性似乎是有生物化学、分子、基因的性质的盒子。这评论在使肥沃的子宫和能力以内在精子运输和选择在进化和他们的通常认为的角色集中于精子尺寸和形状的影响卵母细胞。Francisco A Garcia-Vazquez Joaquin Gadea Carmen Matas William V Holt 2016Asian Journal of Andrology2016,18,6:6
5Ionospheric longitudinal variations at midlatitudes: Incoherent scatter radar observation at Millstone Hill显示文摘Incoherent scatter radar (ISR) extra-wide coverage experiments during the period of 1978-2011 at Millstone Hill are used to investigate longitudinal differences in electron density. This work is motivated by a recent finding of the US east-west coast difference in TEC suggesting a combined effect of changing geomagnetic declination and zonal winds. The current study provides strong supporting evidence of the longitudinal change and the plausible mechanism by examining the climatology of electron density Ne on both east and west sides of the radar with a longitude separation of up to 40o for different heights within 300-450 km. Main findings include: 1) The east-west difference can be up to 60% and varies over the course of the day, being positive (East side Ne > West side Ne) in the late evening, and negative (West side Ne > East side Ne) in the pre-noon. 2) The east-west difference exists throughout the year. The positive (relative) difference is most pronounced in winter; the negative (relative) difference is most pronounced in early spring and later summer. 3) The east-west difference tends to enhance toward decreasing solar activity, however, with some seasonal dependence; the enhancements in the positive and negative differences do not take place simultaneously. 4) Both times of largest positive and largest negative east-west differences in Ne are earlier in summer and later in winter. The two times differ by 12-13 h, which remains constant throughout the year. 5) Variations at different heights from 300-450 km are similar. Zonal wind climatology above Millstone Hill is found to be perfectly consistent with what is expected based on the electron density difference between the east and west sides of the site. The magnetic declination-zonal wind mechanism is true for other longitude sectors as well, and may be used to understand longitudinal variations elsewhere. It may also be used to derive thermospheric zonal winds.COSTER Anthea HOLT John FOSTER John ERICKSON Phil 2012Science China(Technological Sciences)2012,55,5:6
6水稻褐飞虱种群动态模拟模型及其有效性检验显示文摘利用田间系统调查资料和文献报道资料,组建了水稻褐飞虱种群动态模拟模型,该模型采用生理时间、主要成分包括迁入种群的迁入时间、数量和格局;密度、生育阶段、温度、天敌和人为措施对死亡率和生殖力的影响;密度、生育阶段和短翅型比及迁出率的关系.有效性检验表明,该模型模拟的种群时间和数量动态与实际观察动态相似,在对比检验的10组历史资料中,模拟预测的全部主害代高峰期和9组主害代高峰虫量与实测值相符.实测种群动态与模拟种群动态间的差异表明,深入研究秋季低温对生殖力和死亡率的持续影响,研究田间天敌作用的正确评价及水稻生长模型,将有助于理解和预测褐飞虱的种群动态.程家安 章连观 何孙忠 范泉根 Holt J. Norton G.A. 1989浙江农业大学学报1989,15,2:5
7Integrative taxonomy of the Russet Bush Warbler Locustella mandelli complex reveals a new species from central China显示文摘Background: The Russet Bush Warbler Locustella(previously Bradypterus) mandelli complex occurs in mountains in the eastern Himalayas, southern China, Vietnam, the Philippines, and Indonesia. The taxonomy has been debated,with one(L. seebohmi) to four(L. seebohmi, L. mandelli, L. montis and L. timorensis) species having been recognised.Methods: We used an integrative approach, incorporating analyses of morphology, vocalizations and a molecular marker, to re-evaluate species limits in the L. mandelli complex.Results: We found that central Chinese L. mandelli differed from those from India through northern Southeast Asia to southeast China in plumage, morphometrics and song. All were easily classified by song, and(wing + culmen)/tail ratio overlapped only marginally. Both groups were reciprocally monophyletic in a mitochondrial cytochrome b(cytb) gene tree, with a mean divergence of 1.0 ± 0.2%. They were sympatric and mostly altitudinally segregated in the breeding season in southern Sichuan province. We found that the Mt Victoria(western Myanmar) population differed vocally from other L. mandelli, but no specimens are available. Taiwan Bush Warbler L. alishanensis was sister to the L. mandelli complex, with the most divergent song. Plumage, vocal and cytb evidence supported the distinctness of the south Vietnamese L. mandelli idonea. The Timor Bush Warbler L. timorensis, Javan Bush Warbler L.montis and Benguet Bush Warbler L. seebohmi differed distinctly in plumage, but among-population song variation in L. montis exceeded the differences between some populations of these taxa, and mean pairwise cytb divergences were only 0.5–0.9%. We also found that some L. montis populations differed morphologically.Conclusions: We conclude that the central Chinese population of Russet Bush Warbler represents a new species,which we describe herein, breeding at mid elevations in Sichuan, Shaanxi, Hubei, Hunan and Guizhou provinces.The taxonomic status of the other allopatric populations is less clear. However, as they differ to a degree comparable with that of the sympatric L. mandelli and the new species, we elevate L. idonea to species status, and retain L. seebohmi and L. montis as separate species, the latter with timorensis as a subspecies. Further research should focus on different populations of L. montis and the Mt Victoria population of L. mandelli.Per Alstrom Canwei Xia Pamela C Rasmussen Urban Olsson Bo Dai Jian Zhao Paul J Leader Geoff J Carey Lu Dong Tianlong Cai Paul I Holt Hung Le Manh Gang Song Yang Liu Yanyun Zhang Fumin Lei 2015Chinese Birds2015,,2:4
8新氟喹诺酮类药物的抗微生物疗法显示文摘当前氟喹诺酮类药物不仅已成为发达国家如日本、美国、英国、德国、法国等许多国家的常用抗感染药物,而且在第三世界也得到迅速发展,如在印度该类药物的平均年增长率高达25%~28%.该类药物的口服制剂已成为治疗常见感染的重要药物,同时最近已证实,开始采用静脉给药然后改为口服给药的疗法已成为治疗某些严重感染的有效、安全、经济的疗法,尤其对多重耐药菌引起的严重感染有重要价值。最近因严重毒副作用而取消了刚刚在美国上市的替马沙星,虽然对该类药物市场可能有一定影响,但据 FDA 统计,其它已上市多年的品种如诺氟沙星、氧氟沙星和环丙沙星均没有像替马沙星那样多的严重毒副作用。环丙沙星1991年的销售额已达9.04亿美元,较1990年增加19.7%,仅次于头孢克罗.但目前已上市的品种对革兰氏阳性菌特别是肺炎链球菌的活性差,对耐甲氧西林的金葡菌、厌氧菌等活性也不理想,因此开发新品种的工作一直在大量继续进行.本文对了解国外该类药物现状有一定参考价值.Curtis D Holt 王金生 1993国外医药(抗生素分册)1993,14,6:4
9Mechanisms of Obesity-induced Gastrointestinal Neoplasia显示文摘José O. Alemán Leonardo H. Eusebi Luigi Ricciardiello Kavish Patidar Arun J. Sanyal Peter R. Holt 2013Gastroenterology2013,,:3
10Nutrition in alcohol-related liver disease:Physiopathology and management显示文摘Malnutrition encompassing both macro-and micro-nutrient deficiency,remains one of the most frequent complications of alcohol-related liver disease(ArLD).Protein-energy malnutrition can cause significant complications including sarcopenia,frailty and immunodepression in cirrhotic patients.Malnutrition reduces patient’s survival and negatively affects the quality of life of individuals with ArLD.Moreover,nutritional deficit increases the likelihood of hepatic decompensation in cirrhosis.Prompt recognition of at-risk individuals,early diagnosis and treatment of malnutrition remains a key component of ArLD management.In this review,we describe the pathophysiology of malnutrition in ArLD,review the screening tools available for nutritional assessment and discuss nutritional management strategies relevant to the different stages of ArLD,ranging from acute alcoholic hepatitis through to decompensated end stage liver disease.Umair Kamran Jennifer Towey Amardeep Khanna Abhishek Chauhan Neil Rajoriya Andrew Holt 2020World Journal of Gastroenterology2020,26,22:3
11Liver Transplantation for Nonalcoholic Steatohepatitis: The New Epidemic显示文摘Vatche G. Agopian Fady M. Kaldas Johnny C. Hong Meredith Whittaker Curtis Holt Abbas Rana Ali Zarrinpar Henrik Petrowsky Douglas Farmer Hasan Yersiz Victor Xia Jonathan R. Hiatt Ronald W. Busuttil 2012Annals of Surgery2012,,4:2
12Prospective controlled study of polytetrafluoroethylene versus saphenous vein in claudicant patients with bilateral above knee femoropopliteal bypasses显示文摘Ali F. AbuRahma Patrick A. Robinson Steven M. Holt 1999Surgery1999,,:2
13Pretransplant Model to Predict Posttransplant Survival in Liver Transplant Patients显示文摘Rafik M. Ghobrial Jeffery Gornbein Randy Steadman Natale Danino James F. Markmann Curtis Holt Dean Anselmo Farin Amersi Pauline Chen Douglas G. Farmer Steve Han Francisco Derazo Sammy Saab Leonard I. Goldstein Sue V. McDiarmid Ronald W. Busuttil 2002Annals of Surgery2002,,3:2
14The high-molecular-weight subunits of glutenin:structure,genetics and relationship to bread-making quality显示文摘Payne P I Harris P A Law C N Holt L M Blackman J A 1980Ann Technol Agric1980,29,2:2
15Very simple classification rules perform well on most commonly used dataset显示文摘HOLTE R C 1993Mach Learn1993,11,:2
16Liver Transplantation for Nonalcoholic Steatohepatitis: The New Epidemic显示文摘Vatche G. Agopian Fady M. Kaldas Johnny C. Hong Meredith Whittaker Curtis Holt Abbas Rana Ali Zarrinpar Henrik Petrowsky Douglas Farmer Hasan Yersiz Victor Xia Jonathan R. Hiatt Ronald W. Busuttil 2012Annals of Surgery2012,,4:2
17Preliminary outcomes and efficacy of the first 360 consecutive kyphoplasties for the treatment of painful osteoporotic vertebral compression fractures显示文摘Mohammad E. Majd Scott Farley Richard T. Holt 2005The Spine Journal2005,,3:2
18Mild ERCP-induced and non-ERCP-related acute pancreatitis: two distinct clinical entities?显示文摘Ghalib H. Abid H. Priyantha Siriwardana Adrian Holt Basil J. Ammori 2007Journal of Gastroenterology2007,,2:2
19Analysis of Long-term Outcomes of 3200 Liver Transplantations Over Two Decades: A Single-Center Experience显示文摘Ronald W. Busuttil Douglas G. Farmer Hasan Yersiz Jonathan R. Hiatt Sue V. McDiarmid Leonard I. Goldstein Sammy Saab Steven Han Francisco Durazo Michael Weaver Carlos Cao Tony Chen Gerald S. Lipshutz Curtis Holt Sherilyn Gordon Jeffery Gornbein Farin Amer 2005Annals of Surgery2005,,6:2
20轴流压气机采用人工智能和数值优化技术的初步设计显示文摘Holt,G 鞠云峰 1992航空发动机1992,,2:2
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