A preferential 1,2 elimination reaction of syn diethyl ( 2-acetylamino-1-bromo-2-( p-methoxy-phenyl) ethyl) phosphonate 1 rather than the anticipated nucleophilic substitution reaction under basic conditions is described in the present paper. 报道了在碱性条件下,顺(2-乙酰胺基-1-溴-2-(对-甲氧基苯基)乙基)膦酸二乙酯进行的是-1,2-消除反应而不是所期望的亲核取代反应。
1,2 Elimination of syn Diethyl ( 2-acetylamino-1-bromo-2-( p-methoxyphenyl) ethyl) phosphonate under Basic Condition 碱性条件下顺(2-乙酰胺基-1-溴-2-(对-甲氧基苯基)乙基)膦酸二乙酯的1,2消除反应
Objective To investigate α-synuclein expression and aggregation in dopaminergic neurons of rat substantia nigra exposed to proteasome inhibition for the role of proteasome function in the pathogenesis of Parkinson disease. 目的观察蛋白酶体抑制剂诱导大鼠黑质多巴胺能神经元α-突触核蛋白(-αsynuclein,-αSyn)的表达及聚集,探讨蛋白酶体功能在帕金森病(PD)发病中的作用机制。
Effect of Microwave Irradiation on the Syn/ Trans Selectivity in the Formation of β-Lactams From Ketenes and Imines 微波对烯酮和亚胺形成β-内酰胺顺反选择性的影响
Design and Implementation of SYN-probe Detecting Host's State and Packet Round Trip Time SYN探测主机状态和分组时延的设计与实现
Conclusion Extracellular α-Syn promotes the proliferation of dopaminergic neuronal cells. 结论细胞外-αSyn对多巴胺能神经细胞的增殖具有促进作用。
In the neoplastic chief cells, CgA, NSE and Syn were posi-tive. In the sustentacular cells, S-100 protein was positive. 主细胞中CgA、NSE和Syn呈阳性表达,支持细胞中S-100蛋白阳性表达。
Conclusion These results suggested that HDAC was involved in the mechanism of inhibition of tyrosine hydroxylase expression in α-Syn-transfected dopaminergic neuronal cells. 结论HDAC参与了多巴胺能神经元中-αSyn抑制TH表达的机制。
This paper syn-thesizes an advanced standard deviation estimation method and a thresholding method based on the Neyman-Pearson rule for denoising. 本文综合了一种先进的方差估计方法和一种基于Neyman-Pearson准则的门限设计技术进行小波去噪。
Clinical Observation on Quality of Life in Coronary Artery Bypass Grafting Patients Treated According to Syn-drome Differentiation of TCM 中医辨证施治改善冠状动脉搭桥患者生活质量的临床观察
Adaptive Detection of SYN Flooding Attacks at Source-End Networks 源端网络中SYN洪流攻击的自适应检测
Optimization of safflower oil fatty acid monoglyceride syn-thesis using central composite design 中心组合设计优化红花油脂肪酸单甘酯的合成条件
Double-granularity Detection Against SYN Flooding Attacks at Source-end Networks 基于源端网络的SYNFlooding攻击双粒度检测
Objective: To study the gallbladder contractive function in female patients with irritable bowel syn-drome ( IBS). 目的:探讨女性肠易激综合征(IBS)是否存在胆囊收缩功能异常。
The syn-thetic-based sealing fluid is a new type of sealing fluid, and the continuous phase of which is an organic ester with a plasticizing resin serving as the main film-forming material. 合成基密闭液是一种以有机酯为连续相,以增塑树脂为主要成膜材料的新型密闭液。
Based on the research of principle of OFDM, we deeply analyze three kinds of synchronizations in OFDM systems: symbol synchronization, sample synchronization and frequency syn-chronization; 文章针对应用于突发系统中的OFDM的同步问题做了深入研究,分析了系统中主要存在的三种同步:符号同步、样值同步以及载波同步的原理,并给出了具体实现算法。
This paper discusses six linguistic factors influencing productivity, including phonological constraints, morphological constraints, syn-tactic constraints, semantic constraints, pragmatic constraints and blocking. 这是因为新词的产生受到一些语言因素和非语言因素的影响,本文分六个方面论述影响构词能力的语言因素,包括音位限制,形态限制,句法限制,语义限制,语用限制以及语言阻断现象。
The Lysosomal pathway is a major protective mechanism against α-syn oligomer-mediated toxicity, and lysosomal degradation pathway could remove the accumulation of α-syn. 对于α-syn寡聚体介导的毒性,溶酶体降解通路是一个重要的保护机制。
The systematic characteristic of metabolomics observed is similar to holistic concept in traditional Chinese medicine., this can unifies the syn-drome essence of traditional Chinese medicine and the modern research better. 代谢组学技术的系统性与中医的整体观念相似,能够更好的将中医证本质与现代化研究相结合。