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3475篇 您的检索式:作者名="Nelson S"
    题名 作者 年代 出处 被引量
1气象卫星云图的多分辨小波分解及人工神经网络降水估计研究显示文摘采用多分辨小波分析对卫星图象进行预处理 ,在保留其特征信息的同时 ,减小了数据量 ,改善了神经网络训练过程的收敛性能 ,提高了处理速度。采用这一方法根据 GOES- 8的红外亮温图象和气象雷达资料对巴西圣保罗州中部的降水量估计进行了试验 ,取得了良好的效果。李伟钢 Maria C V Ramirez Nelson J Ferreira 石立华 Leonardo D de A Sá 2000南京气象学院学报2000,23,2:13
2Molecular genetics and targeted therapeutics in biliary tractcarcinoma显示文摘The primary malignancies of the biliary tract, cholangio-carcinoma and gallbladder cancer, often present at an advanced stage and are marginally sensitive to radiation and chemotherapy. Accumulating evidence indicates that molecularly targeted agents may provide new hope for improving treatment response in biliary tract carcinoma(BTC). In this article, we provide a critical review of the pathogenesis and genetic abnormalities of biliary tract neoplasms, in addition to discussing the current and emerging targeted therapeutics in BTC. Genetic studies of biliary tumors have identified the growth factors and receptors as well as their downstream signaling pathways that control the growth and survival of biliary epithelia. Target-specific monoclonal antibodies and small molecules inhibitors directed against the signaling pathways that drive BTC growth and invasion have been developed. Numerous clinical trials designed to test these agents as either monotherapy or in combination with conventional chemotherapy have been completed or are currently underway. Research focusing on understanding the molecular basis of biliary tumorigenesis will continue to identify for targeted therapy the key mutations that drive growth and invasion of biliary neoplasms. Additional strategies that have emerged for treating this malignant disease include targeting the epigenetic alterations of BTC and immunotherapy. By integrating targeted therapy with molecular profiles of biliary tumor, we hope to provide precision treatment for patients with malignant diseases of the biliary tract.Eric I Marks Nelson S Yee 2016World Journal of Gastroenterology2016,22,4:13
3Immunotherapeutic approaches in biliary tract carcinoma:Current status and emerging strategies显示文摘For biliary tract carcinoma(BTC),complete surgical resection of tumor is only feasible in a minority of patients,and the treatment options for patients with unresectable or metastatic disease are limited.Advances in cancer immunology have led to identification of tumor-infiltrating immune cells as indicators of prognosis and response to treatment in BTC.This has also facilitated development of immunotherapy that focuses on enhancing the immune system against biliary tumors.This includes peptide- and dendritic cell-based vaccines that stimulate in-vivo immune responses against tumorspecific antigens.Adoptive immunotherapy,which entails the ex-vivo expansion of tumor-infiltrating immune cells for subsequent reintroduction,and cytokinebased therapies have been developed in BTC.Clinical studies indicate that this type of therapy is generally well tolerated.Combination therapy with dendritic cell-based vaccines and adoptive immunotherapy has shown particularly good potential.Emerging strategies through discovery of novel antigen targets and by reversal of tumor-associated immunosuppression are expected to improve the efficacy of immunotherapy in BTC.Collaborative efforts by integration of targeted immunotherapeutics with molecular profiling of biliary tumor will hopefully make a positive impact on advancing towards the goal of developing precision treatment of patients with this highly lethal disease.Eric I Marks Nelson S Yee 2015World Journal of Gastrointestinal Oncology2015,7,11:11
4高纤维膳食和补充乙酸盐改变肠道菌群,预防醋酸脱氧皮质酮-盐型高血压小鼠高血压和心力衰竭的发展显示文摘水果和蔬菜的膳食摄入与高血压的发生率较低有关,但所涉及的机制尚未阐明。该研究评估了高纤维膳食和短链脂肪酸(short-chain fatty acid,SCFA)(乙酸盐)对肠道微生物群和预防心血管病的影响。方法:用盐皮质激素诱发小鼠高血压模型,观测正常喂食组、高纤维喂食组和补充乙酸盐组的肠道微生物、心脏结构/功能和血压水平。刘莉 叶鹏 Marques FZ Nelson EM Chu PY Horlock D Fiedler A Ziemann M Tan JK Kuruppu S Rajapakse NW El-Osta A Mackay CR Kaye DM 2016中华高血压杂志2016,24,12:8
5联合应用沙利度胺和脂质体阿霉素治疗复发性卵巢上皮性癌和腹膜癌的初步研究显示文摘目的:评价联合应用沙利度胺与脂质体阿霉素治疗复发性卵巢上皮性癌和腹膜癌的疗效和毒副作用。方法:将9例经手术和术后泰素+卡铂化疗后复发患者纳入本研究。每4周予以脂质体阿霉素30~50mg/m^2化疗,共3~8个疗程;同时每日予以沙利度胺100~300mg,其剂量从100mg/d开始,此后每2周增加50~100mg。通过体检、影像学检查和测定CA125水平评价治疗效果。结果:9例患者的中位年龄为56岁(35~81岁),FIGO分期为ⅢB~Ⅳ期。本次化疗的中位疗程数是6个疗程。中位随访时间为18.5个月。最常见的不良反应为疲劳(55.6%)和神经系统症状(55.6%)。3例患者出现Ⅲ度副反应,1例为无力、1例过敏性皮疹和1例末梢神经感觉异常。根据RECIST标准评价有病灶的6例患者疗效,2例部分缓解,2例治疗中疾病无进展,1例病情进展,1例失访。另有2例CA125升高的患者,在联合化疗3~4个疗程后CA125水平降低50%以上。1例二次肿瘤细胞减灭术后化疗的患者治疗后随访36个月无肿瘤复发迹象。在随访的8例患者中,中位疾病无进展时间为6.5个月(0~36个月);中位总的生存时间为20.5个月(8~36个月)。结论:联合应用沙利度胺与脂质体阿霉素治疗复发性卵巢上皮性癌具有可接受的毒副作用,同时具有一定的治疗效果。郭红燕 Nelson N. Teng John K. Chan Amreen Husain Deirdre Stieglitz Jonathon S Bereck 2008现代妇产科进展2008,17,2:5
6Microchimerism in recurrent miscarriage显示文摘在怀孕期间,在 microchimerism 的获得的结果,它经久地装在两个接受者坚持的母亲胎儿的房间交换。自然地获得的 microchimerism 可以在怀孕影响母亲胎儿的相互作用。我们进行了研究问一个女人从她的自己的母亲获得了的 microchimerism 是否是可检测的在前或在在有周期性的流产的女人的怀孕期间。胎儿的 microchimerism 也是 assayed。有主要自发的周期性的流产的女人(n= 23 ) 并且控制(n= 31 ) 被学习。Genotyping 为 probands,他们的母亲和胎儿,被进行识别的非分享的多型性和量的聚合酶链反应表现了测量 microchimerismin 外设血 mononuclear 房间。预想比较在周期性的流产题目和控制之间被做,用逻辑回归和 Wilcoxon 等级和。在周期性的流产题目的随后的怀孕的纵的 microchimerism 被描述。向在周期性的流产对控制的 microchimerism 的更低的预想察觉有一个趋势, 6 %对 19 %(1/16 对 6/31, P= 0.2 ) 。在怀孕期间, 3/11 (27 %) 继续了有的周期性的流产题目,出生从他们的自己的母亲有 microchimerism 的察觉,而任何一个继续了流产的二个题目都没有察觉(0/2 ) 。这个起始的数据当可检测时,与周期性的流产在女人从一个女人的自己的母亲建议那 microchimerism,可以不同于控制并且根据随后的怀孕结果。进一步的研究被需要在周期性的流产决定房间类型,数量和 microchimerism 的任何潜在的功能的角色。Hilary S Gammill Mary D Stephenson Tessa M Aydelotte J Lee Nelson 2014Cellular & Molecular Immunology2014,11,6:2
7Delay of disease development in transgenic plant that express the tobacco mosaic virus coat protein gene显示文摘Powell A P Nelson R S De B 1986Science1986,232,:2
8The safety of tenofovir disoproxil fumarate for the treatment of HIV infection in adults: the first 4 years显示文摘Mark R Nelson Christine Katlama Julio S Montaner David A Cooper Brian Gazzard Bonaventura Clotet Adriano Lazzarin Knud Schewe Joep Lange Christina Wyatt Sue Curtis Shan-Shan Chen Stephen Smith Norbert Bischofberger James F Rooney 2007AIDS2007,,10:2
9Cell Shape, Cytoskeletal Tension, and RhoA Regulate Stem Cell Lineage Commitment显示文摘Rowena McBeath Dana M Pirone Celeste M Nelson Kiran Bhadriraju Christopher S Chen 2004Developmental Cell2004,,4:2
10Complications of endoscopic billary sphinoterotomy 显示文摘Freeman ML Nelson DB Sherman S 1996N Engl J Med1996,335,13:1
11Mutant gene that changes protein composition and increase lysine content of maize endosperm显示文摘Mertz E F Bates L S Nelson O E 1964Science1964,145,3629:1
12Hepatic artery adjuvant chemotherapy for patients having resection or ablation of colorectal cancer metastatic to the liver显示文摘Nelson R Freels S 2004Cochrane Database of Systemic Reviews2004,,00:1
13Consistent Structure properties for AlN,GaN,and InN显示文摘Wright A F Nelson J S 1995Phys Rev B1995,51,12:1
14A Developmental Examination of Gender Differences in Brain En- gagement During Evaluation of Threat 显示文摘MCCLURE E B MONK C S NELSON E E 2004Biological Psychiatry2004,,55:1
15Microwave dielectric properties of fresh fruits and vegetables 显示文摘Nelson S O 1980Traps ASAE1980,23,5:1
16Risk factors for corneal graft failure and rejection in penetrating keratoplasty 显示文摘Inoue K Amano S Oshika T Ortiz BD Nelson PJ Krensky AM 2001Acta Ophthalmol Scand2001,79,3:1
17Illinois process for preparation of soymilk显示文摘Nelson A I Steinberg M P Wei L S 1976Food Sci1976,41,1:1
18The availability of phytase phosphorus in soybean meal before and after treatment with a mold phytase显示文摘NELSON T S 1968Poul Sci1968,47,:1
19Population structure and dynamics of Magnaporthe grisea in the Indian Himalayas显示文摘Kumar J Nelson R J Zeigler R S 1999Genetics1999,152,:1
20High sensitivity surface plasmon resonance sensor based on phase detection显示文摘Nelson S G Johnston KS Yee S S 1996Sensors and actuators B1996,3536,:1
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