|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 中国东部地区耕地土壤肥力变化趋势研究显示文摘随着人口、资源和环境之间的矛盾日趋尖锐 ,中国耕地土壤肥力及其变化日益为世人所关注。本文利用最近 2 0年东北地区的吉林和黑龙江省 ,华北地区的北京市和河北省以及长江下游地区的江苏和浙江省的 15个县市 180个样本点的土壤数据资料 ,分析了 2 0世纪 80年代以来东部地区农业土壤肥力的演变趋势。结果表明 ,从总体上看 ,东部地区除土壤速效钾下降和酸碱性有所退化外 ,农业土壤的有机质、全氮和速效磷平均含量都增加了。在空间分布上 ,土壤肥力的变化趋势存在明显差异。长江下游和华北地区的平均肥力提高 ,东北地区下降。另外 ,除华北地区的土壤酸碱性有改善外 ,长江下游和东北地区土壤都存在酸化倾向。 | 俞海 黄季焜 Scott Rozelle Loren Brandt | 2003 | 地理研究2003，22，3： | 107 |
| 2 | 地权稳定性、土地流转与农地资源持续利用显示文摘土地使用权的稳定性、土地流转等农地产权制度对农地资源的影响一直是农村经济改革和农地制度绩效评价中备受关注的问题之一。本文通过建立土壤肥力变化的社会经济及政策影响因素模型 ,利用 6省 1 5县市 1 80个样本地块在 2 0世纪 80年代初期和 2 0 0 0年的土壤实验数据 ,结合同时期这些样本地块所在生产小组的社会经济调查数据 ,对于地权稳定性、农户间非正式土地流转等社会经济及政策因素如何影响农地土壤的可持续生产能力进行了实证分析。模型估计结果表明 :稳定的土地使用权有助于改善农地土壤的长期肥力 ;农户之间的非正式土地流转容易造成农地土壤长期肥力的衰退 ,但对土壤的短期肥力无显著影响 ;同时 。 | 俞海 黄季焜 Scott Rozelle Loren Brandt 张林秀 | 2003 | 经济研究2003，38，9： | 272 |
| 3 | 中国的土地使用权和转移权:现状评价显示文摘本文对中国耕地资源的组织和利用现状进行了系统描述。中国农村的村级土地制度存在巨大差异。但是,迄今还没有评估土地制度对农业效率、公平和总体发展影响的牢固的经验证据。在过去的二十多年中。村干部进行的土地再分配可能方便了人们获得土地,增加了粮食产量,并克服了土地租赁市场的某些不完全性。但是,在许多地区,当前土地制度的成本是显著的。并且持续增加,而且不能被较低程度的收入不均所抵消。 | Loren Brandt 李果 黄季焜 Scott Rozelle | 2004 | 经济学(季刊)2004，3，4： | 48 |
| 4 | Kaili Biota: A Taphonomic Window on Diversification of Metazoans from the Basal Middle Cambrian: Guizhou, China显示文摘A Burgess Shale-type biota is, in part, characterized by a wide diversity of taxa and soft-part preservation. Each provides unique historical insights into early metazoan evolution. Among the more than 40 globally distributed biotas, the early Cambrian Chengjiang and Middle Cambrian Burgess-type biotas are the largest. The Kaili Biota, from the earliest Middle Cambrian of Guizhou, China, contains representatives of 110 metazoan genera belonging to 10 phyla. It contains many well-persevered soft-bodied specimens. This Chinese biota has become the third most taxonomically diverse Burgess Shale-type fauna. Because the Kaili Biota formed in an outer-shelf environment, its main faunal character is large numbers of eocrinoids and planktoic trilobites. The Kaili is younger than the Chengjiang Biota but older than the Canadian Burgess Shale Biota; it shares 30 genera with the Chengjiang and 38 genera with the Burgess Biota. The Kaili Biota displays a taphonomic window to the diversification and evolution of marine offshore organisms covering 5.13 million years between the Early and Middle Cambrian. | ZHAO Yuanlong ZHU Maoyan Loren E. BABCOCK YUAN Jinliang Ronald L. PARSLEY PENG Jin YANG Xinglian WANG Yue | 2005 | Acta Geologica Sinica(English Edition)2005，79，6： | 32 |
| 5 | Oxidative stress and stress signaling: menace of diabetic cardiomyopathy显示文摘心血管的疾病是在糖尿病的人口的最普通的死因并且当前是在美国和另外的工业化国家的死亡的领先的原因之一。与心血管的疾病联系的护理开销正在蹒跚,到达在 2003 的超过 3500 亿美元。为心血管的疾病的风险因素包括高脂肪 / 胆固醇的层次,酒精中毒,吸烟,遗传,环境因素和高血压,它通常被用来计量一个个人心血管的疾病的风险并且在治疗期间追踪他们的进步。最最近,这些因素在心血管的疾病的早预防变得重要。氧化应力,在由内长的抗氧化剂的反应的氧种类生产和故障之间的不平衡,在象充血心力衰竭和联系糖尿病的心机能障碍(糖尿病的心肌症) 那样的心血管的疾病的发作和前进被含有。抗氧化剂治疗在阻止糖尿病的心复杂并发症的发展显示出诺言。这评论在糖尿病的心肌症在氧化压力理论和抗氧化剂治疗集中于最近的进展,与表明假设被涉及的小径的压力上的一个重音。许多表明小径的这些压力导致反应的氧种类的激活,在糖尿病的心肌症的发展和前进的主要播放器。 | Loren E WOLD Asli F CEYLAN-ISIK Jun REN | 2005 | Acta Pharmacologica Sinica2005，26，8： | 23 |
| 6 | Feasibility and safety of autologous bone marrow mononuclear cell transplantation in patients with advanced chronic liver disease显示文摘AIM: To evaluate the safety and feasibility of bone marrow cell (BMC) transplantation in patients with chronic liver disease on the waiting list for liver transplantation. METHODS: Ten patients (eight males) with chronic liver disease were enrolled to receive infusion of autologous bone marrow-derived cells. Seven patients were classified as Child-Pugh B and three as Child-Pugh C. Baseline assessment included complete clinical and laboratory evaluation and abdominal MRI. Approximately 50 ml of bone marrow aspirate was prepared by centrifugation in a ficoll-hypaque gradient. At least of 100 millions of mononuclear-enriched BMCs were infused into the hepatic artery using the routine technique for arterial chemoembolization for liver tumors. Patients were followed up for adverse events up to 4 mo. RESULTS: The median age of the patients was 52 years (range 24-70 years). All patients were discharged 48 h after BMC infusion. Two patients complained ofmild pain at the bone marrow needle puncture site. No other complications or specific side effects related to the procedure were observed. Bilirubin levels were lower at 1 (2.19 ± 0.9) and 4 mo (2.10 ± 1.0) after cell transplantation that baseline levels (2.78 ± 1.2). Albumin levels 4 mo after BMC infusion (3.73 ± 0.5) were higher than baseline levels (3.47 ± 0.5). International normalized ratio (INR) decreased from 1.48 (SD = 0.23) to 1.43 (SD = 0.23) one month after cell transplantation. CONCLUSION: BMC infusion into hepatic artery of patients with advanced chronic liver disease is safe and feasible. In addition, a decrease in mean serum bilirubin and INR levels and an increase in albumin levels are observed. Our data warrant further studies in order to evaluate the effect of BMC transplantation in patients with advanced chronic liver disease. | Andre Castro lyra Milena Botelho Pereira Soares luiz Flavio Maia da Silva Marcos Fraga Fortes André Goyanna Pinheiro Silva Augusto César de Andrade Mota Sheilla A Oliveira Eduardo lorens Braga Wilson Andrade de Carvalho Bernd Genser Ricardo Ribeiro dos Santos luiz Guilherme Costa lyra | 2007 | World Journal of Gastroenterology2007，13，7： | 21 |
| 7 | 土壤肥力变化的社会经济影响因素分析显示文摘自然过程和人类活动是影响土壤质量演变的两大因素 ,而人们的农业生产行为对农田土壤肥力的影响日益加深。中国人口众多 ,土壤资源有限 ,其 80年代初以来的农地土壤肥力变化备受世人关注。同时 ,中国农村的经济、制度、政策发生了深刻的变化。该文利用 80年代初和 2 0 0 0年的土壤肥力数据以及相应的社会经济调查数据 ,试图揭示自农村改革以来可能影响土壤肥力变化的社会经济和政策因素及其相互关系。初步分析表明 ,经济发展水平对土壤肥力提高有一定促进作用 ,耕地资源禀赋则相反。现行土地产权制度与土壤肥力变化之间没有表现出某种明显的相关关系。 2 0a来中国农地的复种指数变化没有破坏土壤肥力 ,反而因复种指数略微下降而改善土壤肥力。同时 ,近年来秸秆还田的增加有助于提高土壤有机质含量。 | 俞海 黄季焜 Scott Rozelle Loren Brandt | 2003 | 资源科学2003，25，2： | 18 |
| 8 | Creative accounting or creative destruction? Firm-level productivity growth in Chinese manufacturing显示文摘 | Loren Brandt Johannes Van Biesebroeck Yifan Zhang | 2011 | Journal of Development Economics2011，，2： | 12 |
| 9 | Utility of magnetic resonance imaging in anorectal disease显示文摘Imaging of both benign and malignant anorectal diseases has traditionally posed a challenge to clinicians, and as a result history and physical exam have been relied on heavily. CT scanning and endorectal ultrasound have become popular in assessment of anatomy and staging of tumors, but have limitations. Magnetic resonance imaging (MRI) has the capability to fill in the gaps left open by more conventional imaging modalities and continues to be promising as the definitive imaging technique in the pelvis, especially with advancement of emerging technologies in this field. A comprehensive review of this topic has been undertaken. Anorectal disease is divided into three broad categories: cancer, fistula/abscess, and pelvic floor disorders. A review of the literature is performed to evaluate the use of MRI and other imaging modalities in these three areas. Preoperative imaging is useful in the evaluation of all three areas of anorectal disease. MRI is an effective tool in delineating anatomy and, when correlating with the specific clinical scenario, is an effective adjunct in clinical decision-making in order to optimize outcome. MRI continues to be a promising and novel approach to imaging various afflictions of the anorectum and the pelvic floor. Its role is more well-established in some areas than in others, and there are still signif icant limitations. As technology advances, MRI will shed more light on a complex anatomical area. | Loren Berman Gary M Israel Shirley M McCarthy Jeffrey C Weinreb Walter E Longo | 2007 | World Journal of Gastroenterology2007，13，23： | 11 |
| 10 | Bank discrimination in transition economies: ideology, information, or incentives?显示文摘 | Loren Brandt Hongbin Li | 2003 | Journal of Comparative Economics2003，，3： | 11 |
| 11 | The Global boundary Stratotype Section and Point (GSSP) of the Drumian Stage (Cambrian) in the Drum Mountains, Utah, USA显示文摘 | Loren E. Babcock Richard A. Robison Margaret N. Rees Shanchi Peng Matthew R. Saltzman | 2007 | Episodes2007，30，2： | 9 |
| 12 | 大坝失事概率估算方法在量化风险评价中的应用现状显示文摘 | Robill FELL David S.BOWLES Loren R.ANDERSON 邵北筠 | 2002 | 大坝与安全2002，16，1： | 8 |
| 13 | A new section of Kaili Formation (Cambrian) and a biostratigraphic study of the boundary interval across the undefined Cambrian Series 2 and Series 3 at Jianshan,Jianhe County,China with a discussion of global correlation based on the first appearance dat显示文摘在 Jianshan 的 Kaili 形成的新节的三叶虫 biostratigraphic 研究, Chuandong 村庄, Jianhe 县,贵州被报导。与 Ovatoryctocara granulata Bathynotus holopygus 地区和原来在 Kaili 的 Wuliu-Zengjiayan 节从三叶虫集合被定义的 overlying Oryctocephalus indicus 地区联系的关键种类的另外的出现从这新节被报导。Oryctocephalus indicus 的第一本外观资料(一度时髦的风尚) 在单位的底上面发生在 44.52 m。基于丰富的标本的学习(n = 800 ) 从 Kaili 形成,我们主张那 Oryctocephalus indicus 是普遍的税在上与全球分布。O。reticulatus (Lermontova, 1940 ) 从在西伯利亚和 O 的 Molodo 河区域的 Amganian 阶段的 Kounamkites 地区的中间的部分。americanus (Sundberg 和 McCollum, 2003 ) 从内华达,北美洲类似于 O 的代表。发生在 O 的 indicus。Kaili 形成的 indicus 地区。O。reticulatus 和 O。americanus 这里与 O 被举出。indicus (里德, 1910 ) 。这研究为未命名的寒武纪的系列 3 的底为全球 Stratotype 作为候选人节加强 Kaili 形成的 Wuliu-Zengjiayan 节。 | Yuanlong Zhao Jinliang Yuan Shanchi Peng Loren E. Babcock Jin Peng Qingjun Guo Jihpai Lin Tongshu Tai Ruidong Yang Yuxian Wang | 2008 | Progress in Natural Science:Materials International2008，18，12： | 8 |
| 14 | 人文社会与医学:UIC临床医学基要课程显示文摘本文介绍了伊利诺伊大学芝加哥校区的整合式课程'临床医学基要'(Essentials of Clinical Medicine,ECM)的历史、课程目标、内容和教学安排、学生课业评价、课程管理与改进、课程的效果和主要特点等。该课程将医学人文社会知识技能与临床问诊、查体和临床决策紧密联系起来,运用讲座、小组学习、工作坊、医院见习与实习多种教学方法,注重学生从'做中学',注重自我教育与反思,注重团队合作与教学相长,教学效果良好。 | 曾勇 Dale Lorens Maureen Valaski Leslie J.Sandlow | 2010 | 复旦教育论坛2010，8，2： | 6 |
| 15 | Pancreatic enzymes and abdominal adipose tissue distribution in new-onset prediabetes/diabetes after acute pancreatitis显示文摘BACKGROUND New-onset prediabetes/diabetes after acute pancreatitis(NODAP)is the most common sequela of pancreatitis,and it differs from type 2 prediabetes/diabetes mellitus(T2DM).AIM To study the associations between circulating levels of pancreatic amylase,pancreatic lipase,chymotrypsin and fat phenotypes in NODAP,T2DM,and health.METHODS Individuals with NODAP(n=30),T2DM(n=30),and sex-matched healthy individuals(n=30)were included.Five fat phenotypes(intra-pancreatic fat,liver fat,skeletal muscle fat,visceral fat,and subcutaneous fat)were determined using the same magnetic resonance imaging protocol and scanner magnet strength for all participants.One-way analysis of covariance,linear regression analysis,and relative importance analysis were conducted.RESULTS Intra-pancreatic fat deposition(IPFD)was higher in NODAP(9.4%±1.8%)and T2DM(9.8%±1.1%)compared with healthy controls(7.8%±1.9%)after adjusting for covariates(P=0.003).Similar findings were observed in regards to visceral fat volume(P=0.005),but not subcutaneous fat volume,liver fat,or skeletal muscle fat.Both IPFD(β=-2.201,P=0.023)and visceral fat volume(β=-0.004,P=0.028)were significantly associated with circulating levels of pancreatic amylase in NODAP,but not in T2DM or healthy individuals.Of the five fat phenotypes,IPFD explained the highest amount of variance in pancreatic amylase concentration(R2=15.3%out of 41.2%).None of the phenotypes contributed meaningfully to the variance in pancreatic lipase or chymotrypsin.CONCLUSION Both NODAP and T2DM are characterized by increased IPFD and visceral fat volume.However,only NODAP is characterized by significant inverse associations between the two fat phenotypes and pancreatic amylase. | Juyeon Ko Loren Skudder-Hill Jaelim Cho Sakina H Bharmal Maxim S Petrov | 2021 | World Journal of Gastroenterology2021，27，23： | 5 |
| 16 | Global standard names for the Lowermost Cambrian Series and Stage显示文摘 | Ed Landing Shanchi Peng Loren E. Babcock Gerd Geyer Malgorzata Moczydlowska- Vidal | 2007 | Episodes2007，30，4： | 5 |
| 17 | Doege-Potter syndrome by malignant solitary fibrous tumor of the liver: A case report and review of literature显示文摘BACKGROUND Solitary fibrous tumor of the liver (SFTL) is a rare occurrence with a low number of cases reported in literature. SFTL is usually benign but, 10%-20% cases are reported to be malignant with a tendency to metastasize. The majority of malignant SFTL cases are associated with a paraneoplastic hypoglycaemia defined as Doege-Potter syndrome. Surgery is the best therapeutic treatment, however, long- life follow-up is recommended. CASE SUMMARY A 74-year-old man, was admitted to the emergency department after a syncopal episode with detection of hypoglycaemia resistant to medical treatment. The computed tomography revealed a solid mass measuring 15 cm of the left liver. An open left hepatectomy was performed with complete resection of tumor. Histopathological analyses confirmed a malignant SFTL. CONCLUSION Large series with long-term follow-up have not been published neither have clinical trials been undertaken. Consequently, the methodical long-term followup of surgically treated SFTLs is strongly recommended. | Delvecchio Antonella Duda Loren Conticchio Maria Fiore Felicia Lafranceschina Stefano Riccelli Umberto Cristofano Antonella Pascazio Bianca Colagrande Anna Resta Leonardo Memeo Riccardo | 2019 | World Journal of Gastrointestinal Surgery2019，11，8： | 5 |
| 18 | 2010女性急性单纯性膀胱炎和肾盂肾炎临床治疗指南(摘译)显示文摘美国感染病学会、欧洲临床微生物与感染病学会共同组织专家对1999年美国感染病学会单纯性尿路感染的指南进行了更新。2010指南更新的重点是治疗女性急性单纯性膀胱炎和肾盂肾炎,仅适用于无已知尿道畸形或合并症的绝经前及未妊娠的女性患者。作者就指南的主要内容进行摘译。 | 刘辉(译) 刘树元(译) kalpana gupta thomas m.hooton richard colgan loren g.miller gregory j.moran anthony j.schaeffer david e.soper lindsay e.nicolle kurt g.naber bjorn wullt raul raz | 2016 | 转化医学杂志2016，5，2： | 4 |
| 19 | AHA/ACC Guidelines for Secondary Prevention for Patients With Coronary and Other Atherosclerotic Vascular Disease: 2006 Update: Endorsed by the National Heart, Lung, and Blood Institute显示文摘 | Sidney C. Smith Jerilyn Allen Steven N. Blair Robert O. Bonow Lawrence M. Brass Gregg C. Fonarow Scott M. Grundy Loren Hiratzka Daniel Jones Harlan M. Krumholz Lori Mosca Richard C. Pasternak Thomas Pearson Marc A. Pfeffer Kathryn A. Taubert | 2006 | Circulation2006，，19： | 4 |
| 20 | Outcomes of EUS-guided drainage of debris-containing pancreatic pseudocysts by using combined endoprosthesis and a nasocystic drain显示文摘 | Ali A. Siddiqui John M. DeWitt Anna Strongin Harkirat Singh Smoker Jordan David E. Loren Thomas Kowalski Mohamad A. Eloubeidi | 2013 | Gastrointestinal Endoscopy2013，，： | 4 |
您所在的机构暂未开通此部分的功能，请联系管理员