retro相关论文
Theoretical insights into the [4+2]/retro [4+2] cycloaddition approach to the synthesis of biaryls a
A domino [4+2]/retro [4+2] cycloaddition process of cyclohexadienes with arylethynes or benzyne providing access to biar......
Tandem intramolecular Diels–Alder/retro-Diels–Alder cycloaddition of 2H-chromen-2-one as dienes with
To study the intramolecular Diels-Alder cycloadditon of 2H-chromen-2-one as a diene,a series of chiral N-allyl-N-benzyla......
We theoretically study the differential conductance of a graphene/graphene superconductor junction, where the valley pol......
3-胺基雌激素是潜在的雌激素药物,传统的合成方法以雌酚酮为原料,难以进行多样性导向的快速合成.以19-羟基雄甾-4-烯-3,7-二酮为原......
Texture analysis on parametric maps derived from dynamic contrast-enhanced magnetic resonance imagin
AIM: To investigate the merits of texture analysis on parametric maps derived from pharmacokinetic modeling with dynamic......
AIM:To analyze the risk of coronary heart disease in patients with type 2 diabetes mellitus(T2DM)receiving standard medi......
A technique to calibrate faro retro probe using laser tracker system (LTS) is presented. The deep-access retro probe ena......
Analysis of clinical efficacy of recombinant activated factor Ⅶ on bleeding in patients with hematol
Objective To investigate the treatment efficacy of recombinant activated factorⅦ(rFⅦa)for bleeding among patients with......
目的 探讨乳腺癌针吸细胞学(FNAC)诊断准确性。方法 分析1326例乳腺肿块针吸细胞学诊断,并与323例手术后病理组织学诊断结果对比。......
目的观察硅胶泪道引流管联合泪道支撑管同时置入治疗复杂性泪道阻塞的临床效果。方法作者设计了一种"顺逆联合全泪道置管术"，即硅胶......
目的探讨恶性肿瘤合并颅内静脉系统血栓形成（CVST）的发病特点及发病机制。方法回顾性研究2006年1月至2016年12月住院治疗的活动性恶......
目的探讨脂肪组织胰岛素抵抗与新诊断2型糖尿病患者亚临床动脉粥样硬化的相关性。方法回顾性分析首都医科大学附属北京友谊医院201......
The aim of this study was to evaluate the influence of different entrance surface treatments of the scintillator on the ......
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AIM: To study the histological and pancreatitis-associated protein mRNA accumulation changes of pancreas from acute phas......
内镜下逆行胰胆管造影术（endoscopic retrograde cholangiopancreatography，ERCP）诞生于60年代后期，1974年内镜下乳头括约肌切开术首次......
AIM: To investigate the quality of care for a hospital based-cohort of patients with inflammatory bowel disease (IBD) fr......
Inflammatory Myofibroblastic Tumor Mimicking Malignant Meningioma in the Middle Cranial Fossa:a Case
INFLAMMATORY myofibroblastic tumor(IMT),alsoknown as inflammatory pseudotumor or plasma cellgranulomas,is an uncommon fi......
Objective:To identify worms obtained from patients with eye lesions and to describe the demographic factors of patients ......
Analysis of clinical manifestations and risk factors of mortality in Acinetobacter baumannii bloodst
Objective To explore the clinical manifestations,antimicrobial therapy,and risk factors of mortality in patients with Ac......
The lithologies of the Chinese Continental Scientific Drilling main hole (CCSD-MH) are mainly comprised of orthogneiss,p......
AIM To determine the frequency of bleeding source detection in patients with obscure gastrointestinal bleeding(OGIB) who......
Preprodynorphin- like immunoreactivity in medullary dorsal horn neurons projecting to the thalamic r
Preprodynorphin(PPD) - like imm unoreactive(- L I) neuronal cell bodies in the trigeminal sensory nuclear complex of the......
Objective To analyze the clinical characteristics of nonfunctioning pheochromocytoma, and to evaluate the efficacy of 13......
Cocultivation of umbilical cord blood CD34~+ cells with retro-transduced hMSCs leads to effective am
AIM:To establish a novel coculture system for ex vivoexpansion of umbilical cord blood(UCB)hematopoieticprogenitors usi......
In recent years we have been interested in the synthesis of natural products by retro Diels-Alder reaction.~(1-4)A rogod......
本课题组以前的研究表明,adipophilin通过ERK1/2-PPARγ信号转导通路促进细胞内的脂质蓄积.为了研究高表达和敲减adipophilin是否......
来自美国拉斯维加斯的消息:美国本田摩托车公司在近日举办的每年1次的经销商展示会上公布了10款最新的摩托车,它们是VTX1800N(售......
·Professor and Head of Eye-ENT Center, Catholic University of Korea. ·Chairman of Catholic Foundation of Eye Research......
Objective: To study the therapeutic efficiency and effecacy of laser-directing approach on searching for the nasal broke......
【正】 PetroChina Company Ltd. (SH: 600857, HK: 0857) announced September 4th it has com-pleted the acquisition of appro......
Failure in early diagnosis and treatment inpatients with tuberculosis of atlantaxial jointmay result in serious complic......
The study on relationship between age and cytogenetic subgroups in 640 patients with de novo acute m
Objective To analyze the cytogenetic characteristicsof different age subgroups in patients with acute myeloid leukemia(A......
A monostatic strip-map mode interferometric synthetic aperture ladar(SAL) is reported. Using a chirped laser of about 5 ......
Thyroid lymphoma is an unusual pathology. Different subtypes of lymphoma can present as primary thyroid lymphoma. This r......
Sensor management plays an important role in data fusion system, and this paper presents an algorithm of sensor manageme......
Adjuvant radiotherapy for pathologically advanced prostate cancer improves biochemical recurrence fr
AIM: To evaluate the long-term outcomes of patients receiving adjuvant and salvage radiotherapy following prostatectomy ......
Low-dose computed tomography with 4~(th)-generation iterative reconstruction algorithm in assessment
AIM To compare radiation dose and image quality of lowdose computed tomography(CT) protocol combined with hybrid-iterati......
Comparison of allogeneic or autologous hematopoietic stem cell transplant for high-risk peripheral T
Objective To evaluate the efficacy of auto-HSCT and allo-HSCT in the treatment of high risk peripheral T cell lymphoma(P......
AIM To investigate the incidence and mortality rates of upper gastrointestinal cancer(UGIC) in Hebei Province, China, an......
获得性免疫缺陷综合征(Acquired lmmunodefici-ency Syndrome,AIDS)是近些年来新发现的一种病毒性传染病,其病原体已明确是一种逆......
目的 探讨胆源性急性胰腺炎的临床诊治方法效果及护理体会.方法 对我院收治的78例胆源性急性胰腺炎患者病例进行回顾性分析.结果 ......
目的 为了提高心脏移植的效果,改进心脏移植中供心的保护方法.方法 3例原位心脏移植手术中采用4℃改良St.Thomas液经主动脉根部灌......
目的:本研究通过回顾性分析PD-1在晚期原发性肝癌治疗中的临床效果及安全性。方法:通过回顾性分析2019年1月-2020年1月本院收治的......
针对华亭电厂25 MW机组锅炉联箱手孔在运行中经常泄漏及检修质量难以保证问题,对联箱手孔进行了改造,即将原有手孔盖去掉,在联箱端......
毛先舒是明清之际杭州诗人群体中成就较高、影响甚众,且颇具特色者,在明末清初诗坛占有重要地位。清初宗唐、宗宋之风此起彼伏,毛......
目的：血管平均滑肌细胞的凋亡在球囊损伤后３０分钟内即已经开始，用基因转移的方法加速这一经过是控制再狭窄的途径之一。选择野生型ｐ５３作为......
目的:探讨(前臂、小腿)逆行浅静脉-皮神经营养血管岛状皮瓣的血供,手术方法及临床应用效果.方法:用逆行头静脉-前臂外侧皮神经营养......
为明确关税与贸易总协定1994溯及既往条款的具体内涵,通过以DS449案件为主线,并以专家组和上诉机构对GATT第10.2条的分析为两翼,在......
