|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 氢化物发生-多接收杯电感耦合等离子体质谱同位素稀释法测定硒同位素显示文摘使用改进的巯基棉分离流程和74硒-77硒双稀释剂,在氢化物(HG)-多接收器电感耦合等离子体质谱仪(MC-ICP-MS)实现了高精度硒同位素组成的测定。巯基棉用于分离样品基质中的硒,随后使用HNO3+H2O2消除干扰的有机质,74硒-77硒双稀释剂校正样品分离和质谱测定过程中的硒同位素质量分馏。硒标准溶液NISTSRM3149和MH495几个月的测定表明,该方法的外精度为0.1‰(2σ),样品的外精度为0.15‰~0.2‰(2σ)。以TCF分离硒的平均回收率85%计算,最小硒需要量为20ng。实验结果以相对于NISTSRM3149的δ82/76Se表达,δM82H/74965/SRM3149=-3.44±0.1‰(2σ),优于已发表的数据δ8M2H/74965/SRM3149=-3.04±0.5‰。测定样品的δ8S2R/M736149为-13.53‰~11.37‰,为硒同位素在环境、农业、生命和地球科学中的拓展应用与发展奠定了基础。 | 朱建明 Johnson Thomas M. Clark Scott K. 朱祥坤 | 2008 | 分析化学2008，36，10： | 16 |
| 2 | Endoscopy and polyps-diagnostic and therapeutic advances in management显示文摘Despite multiple efforts aimed at early detection through screening, colon cancer remains the third leading cause of cancer-related deaths in the United States, with an estimated 51000 deaths during 2013 alone. The goal remains to identify and remove benign neoplastic polyps prior to becoming invasive cancers. Polypoid lesions of the colon vary widely from hyperplastic, hamartomatous and inflammatory to neoplastic adenomatous growths. Although these lesions are all benign, they are common, with up to one-quarter of patients over 60 years old will develop pre-malignant adenomatous polyps. Colonoscopy is the most effective screening tool to detect polyps and colon cancer, although several studies have demonstrated missed polyp rates from 6%-29%, largely due to variations in polyp size. This number can be as high as 40%, even with advanced (> 1 cm) adenomas. Other factors including sub-optimal bowel preparation, experience of the endoscopist, and patient anatomical variations all affect the detection rate. Additional challenges in decision-making exist when dealing with more advanced, and typically larger, polyps that have traditionally required formal resection. In this brief review, we will explore the recent advances in polyp detection and therapeutic options. | Scott R Steele Eric K Johnson Bradley Champagne Brad Davis Sang Lee David Rivadeneira Howard Ross Dana A Hayden Justin A Maykel | 2013 | World Journal of Gastroenterology2013，19，27： | 16 |
| 3 | Operative considerations for rectovaginal fistulas显示文摘To describe the etiology, anatomy and pathophysiology of rectovaginal fistulas(RVFs); and to describe a systematic surgical approach to help achieve optimal outcomes. A current review of the literature was performed to identify the most up-to-date techniques and outcomes for repair of RVFs. RVFs present a difficult problem that is frustrating for patients and surgeons alike. Multiple trips to the operating room are generally needed to resolve the fistula, and the recurrence rate approaches40% when considering all of the surgical options. At present, surgical options range from collagen plugs and endorectal advancement flaps to sphincter repairs or resection with colo-anal reconstruction. There are general principles that will allow the best chance for resolution of the fistula with the least morbidity to the patient. These principles include: resolving the sepsis, identifying the anatomy, starting with least invasive surgical options, and interposing healthy tissue for complex or recurrent fistulas. | Kevin R Kniery Eric K Johnson Scott R Steele | 2015 | World Journal of Gastrointestinal Surgery2015，7，8： | 7 |
| 4 | Ammonia-oxidizing archaea and bacteria are structured by geography in biological soil crusts across North American arid lands显示文摘Introduction:Biological soil crusts(BSCs)can dominate surface cover in dry lands worldwide,playing an integral role in arid land biogeochemistry,particularly in N fertilization through fixation and cycling.Nitrification is a characteristic and universal N transformation in BSCs that becomes important for the export of N beyond the microscopic bounds of the crust itself.The contribution of ammonia-oxidizing bacteria(AOB)in BSCs has been shown,but the role and extent of the recently discovered ammonia-oxidizing archaea(AOA)have not.Methods:We sampled various types of crusts in four desert regions across the western United States and characterized the composition and size of ammonia-oxidizing communities using clone libraries and quantitative PCR targeting the amoA gene,which codes for the ammonia monooxygenase enzyme,universally present in ammonia-oxidizing microbes.Results:All archaeal amoA sequences retrieved from BSCs belonged to the Thaumarchaeota(Nitrososphaera associated Group I.1b).Sequences from the Sonoran Desert,Colorado Plateau,and Great Basin were indistinguishable from each other but distinct from those of the Chihuahuan Desert.Based on amoA gene abundances,archaeal and bacterial ammonia oxidizers were ubiquitous in our survey,but the ratios of archaeal to bacterial ammonia oxidizers shifted from bacterially dominated in northern,cooler deserts to archaeally dominated in southern,warmer deserts.Conclusions:Archaea are shown to be potentially important biogeochemical agents of biological soil crust N cycling.Conditions associated with different types of BSCs and biogeographical factors reveal a niche differentiation between AOA and AOB,possibly driven by temperature. | Yevgeniy Marusenko Scott T Bates Ian Anderson Shannon L Johnson Tanya Soule Ferran Garcia-Pichel | 2013 | Ecological Processes2013，2，1： | 4 |
| 5 | Colorectal cancer screening and surveillance: Clinical guidelines and rationale—Update based on new evidence显示文摘 | Sidney Winawer Robert Fletcher Douglas Rex John Bond Randall Burt Joseph Ferrucci Theodore Ganiats Theodore Levin Steven Woolf David Johnson Lynne Kirk Scott Litin Clifford Simmang | 2003 | Gastroenterology2003，，2： | 4 |
| 6 | Quality in the technical performance of colonoscopy and the continuous quality improvement process for colonoscopy: recommendations of the U.S. Multi-Society Task Force on Colorectal Cancer显示文摘 | Douglas K Rex John H Bond Sidney Winawer Theodore R Levin Randall W Burt David A Johnson Lynne M Kirk Scott Litlin David A Lieberman Jerome D Waye James Church John B Marshall Robert H Riddell | 2002 | The American Journal of Gastroenterology2002，，6： | 3 |
| 7 | Kidney Tubular-Cell Secretion of Osteoblast Growth Factor Is Increased by Kaempferol:A Scientific Basis for 'The Kidney Controlling the Bone' Theory of Chinese Medicine显示文摘到学习,在 cytological 水平,肾(沈) 控制的中国药的基本概念骨头。 | 龙勉 李顺祥 肖江峰 王健 Lozanoff Scott 张志光 Luft Benjamin J Johnson Francis | 2014 | Chinese Journal of Integrative Medicine2014，20，9： | 2 |
| 8 | The relative importance of graft surveillance and warfarin therapy in infrainguinal prosthetic bypass failure显示文摘 | Robert Scott Brumberg Martin R. Back Paul A. Armstrong David Cuthbertson Murray L. Shames Brad L. Johnson Dennis F. Bandyk | 2007 | Journal of Vascular Surgery2007，，： | 2 |
| 9 | Sonic hedgehog and retinoic acid synergistically promote sensory fate specification from bone marrow-derived pluripotent stem cells显示文摘 | Takako Kondo Scott A Johnson | 2005 | Proc Natl Acad Sci U S A2005，102，13： | 1 |
| 10 | The Effect of Passive Ultrasonic Activation of 2% Chlorhexidine or 5.25% Sodium Hypochlorite Irrigant on Residual Antimicrobial Activity in Root Canals显示文摘 | Carol Diener Weber Scott B. McClanahan Glenn A. Miller Marie Diener-West James D. Johnson | 2003 | Journal of Endodontics2003，，9： | 1 |
| 11 | Asymbiotic and symbiotic seed germination of Eulophia alta (Orchidaceae)—preliminary evidence for the symbiotic culture advantage显示文摘 | Timothy R. Johnson Scott L. Stewart Daniela Dutra Michael E. Kane Larry Richardson | 2007 | Plant Cell, Tissue and Organ Culture2007，，3： | 1 |
| 12 | Outcome analysis of long-term survivors following pancreaticoduodenectomy显示文摘 | W. Scott Melvin M.D. Karl S. Buekers B.S. Peter Muscarella M.D. Jerome A. Johnson Ph.D. William J. Schirmer M.D. E. Christopher Ellison M.D | 1998 | Journal of Gastrointestinal Surgery1998，，1： | 1 |
| 13 | Physician response to financial incentives when choosing drugs to treat breast cancer显示文摘 | Andrew J. Epstein Scott J. Johnson | 2012 | International Journal of Health Care Finance and Economics2012，，4： | 1 |
| 14 | Toll-like re- ceptor 1 polymorphisms increase susceptibility to can- didemia显示文摘 | Plantinga TS Johnson MD Scott WK | 2012 | J Infect Dis2012，205，6： | 1 |
| 15 | Effect of respirator inspiratory resistance level on constant load treadmill work performance显示文摘 | Johnson AT Scott WH Lausted CG | 1999 | American Industrial Hygiene Association Journal1999，60，4： | 1 |
| 16 | Mesenteric venous thrombosis after laparoscopic Roux-en- Y gastric bypass显示文摘 | Colleen M. Johnson Roger A. de la Torre J. Stephen Scott Taylor Johansen | 2005 | Surgery for Obesity and Related Diseases2005，，6： | 1 |
| 17 | Comparison of Effectiveness of Atorvastatin 10 mg Versus 80 mg in Reducing Major Cardiovascular Events and Repeat Revascularization in Patients With Previous Percutaneous Coronary Intervention (Post Hoc Analysis of the Treating to New Targets [TNT] Study)显示文摘 | Colleen Johnson David D. Waters David A. DeMicco Andrei Breazna Vera Bittner Heiner Greten Scott M. Grundy John C. LaRosa | 2008 | The American Journal of Cardiology2008，，10： | 1 |
| 18 | Initial phase transformation diagram determination for the CD3MN cast duplex stainless steel显示文摘 | Johnson E Kim Y J Scott C L | 2004 | Scripta Materialia2004，50，10： | 1 |
| 19 | Identification of phases in zinc alloy powders using electron backscatter diffraction显示文摘 | Martin G Perez Edward A Kenik Matthew J O'Keefe F Scott Miller Benedict Johnson | 2006 | Mater Sci Eng A2006，424，： | 1 |
| 20 | Population-Based Genome-wide Association Studies Reveal Six Loci Influencing Plasma Levels of Liver Enzymes显示文摘 | Xin Yuan Dawn Waterworth John R.B. Perry Noha Lim Kijoung Song John C. Chambers Weihua Zhang Peter Vollenweider Heide Stirnadel Toby Johnson Sven Bergmann Noam D. Beckmann Yun Li Luigi Ferrucci David Melzer Dena Hernandez Andrew Singleton James Scott Paul | 2008 | The American Journal of Human Genetics2008，，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员