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一种新型铕(Ⅲ)三元配合物的合成与电致发光

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高等学校化学学报 2005年第10期26卷 1787-1790页

作者：袁继兵李嘉航梁万里苏树江姚骏骅龚孟濂中山大学化学与化学工程学院光电材料与技术国家重点实验室广州510275 香港浸会大学先进发光材料中心中山大学分析测试中心广州510275

合成了一种含有空穴传导基团三苯胺、电子传导基团噁二唑的新型配体(EtPOTIP)及其铕(Ⅲ)的三元配合物Eu(DBM)3EtPOTIP,通过1H nMR、IR、元素分析及质谱对它们的结构进行了表征.对配体和配合物的吸收光谱及光致发光光谱研究结果表明:配... 详细信息

合成了一种含有空穴传导基团三苯胺、电子传导基团噁二唑的新型配体(EtPOTIP)及其铕(Ⅲ)的三元配合物Eu(DBM)3EtPOTIP,通过1H nMR、IR、元素分析及质谱对它们的结构进行了表征.对配体和配合物的吸收光谱及光致发光光谱研究结果表明:配体和配合物对近紫外光有强烈吸收,配合物在近紫外光激发下发出强的Eu3+特征红光,荧光量子效率为0.48;热分析显示配合物具有高的热稳定性,表明合成的配合物是一种优良的多功能红色发光材料.制作了相应的明亮电致发光器件,显示EtPOTIP同时具备空穴传导和电子传导性能,EtPOTIP在配合物中的存在显著改善了器件的电致发光性能.

关键词：铕(Ⅲ) 三元配合物电子传导空穴传导有机电致发光器件

海洛因滥用者的疼痛应对：苯二氮类药物的节制与调节作用

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海洛因滥用者的疼痛应对：苯二氮类药物的节制与调节作用

重症禽流感病毒A(H_5n_1)感染的细胞毒疗法

第十届全国药物依赖性学术会议暨首届中美药物滥用和HIV/HCV共病专题研讨会

作者： Ada Man Choi Ho Ben kin leung Cheung Alfreda Stadlin School of Medical Science Griffith UniversityQueenslandAustralia Department of Anatomy The Chinese University of Hong KongShatin Substance Abuse Assessment Clinic kwai Chung Hospital Tsuen Wan N.T.Hong Kong SARChina School of Medical Science Griffith University QueenslandAustralia

Previous studies on pain responses in opioid abstainers yielded contradictory results which may be due to inconsistencies in abstinent *** the change in pain responses of chronic opioid users after drug cessation rema... 详细信息

关键词： pain responses heroin abusers benzodiazepines

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中国处方药 2006年第11期5卷 41-43页

作者： Jan-Inge Henter Chun-Bong Chow Chi-Wai leung Yu-Lung Lau 于丽

据文献报道,禽流感病毒AH5n1亚型感染的死亡率仍然很高,现在WHO报道的数据是大约50%。事后分析发现,感染患者的噬血细胞现象与噬血细胞性淋巴组织增生症(HLH)患者相似。这种噬血细胞现象可能是H5n1感染后的一个显著特征。在临床表现方面... 详细信息

据文献报道,禽流感病毒AH5n1亚型感染的死亡率仍然很高,现在WHO报道的数据是大约50%。事后分析发现,感染患者的噬血细胞现象与噬血细胞性淋巴组织增生症(HLH)患者相似。这种噬血细胞现象可能是H5n1感染后的一个显著特征。在临床表现方面,H5n1感染与HLH也有相似,比如血细胞减少以及急性脑炎。据报道,其他重症病毒感染且有可能并发继发性HLH、重症EB病毒相关噬血细胞性淋巴组织增生症(Epstein-Barrvirus-associatedhemophagocyticlymphohistiocytosis,EBV-H的LH)患者,若早期即开始给予特异性的HLH治疗(包括细胞毒药物和促进凋亡的药物),存活率会由50%升至90%。由于生存率有如此明显的升高,特异性的HLH治疗(包括细胞毒药物治疗)可被作为重症禽流感病毒A感染并发继发性HLH患者的治疗方法。

关键词： A(H5n1) 细胞毒药物感染患者禽流感病毒重症流感病毒A感染噬血细胞性组织增生症

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危机环境下的领导力

Estimated net endogenous acid production and risk of prevalent and incident hypertension in community-dwelling older people

作者： (美)丹尼斯·n·T·珀金斯(dennis n.T. Perkins) (美)玛格丽特·P·霍尔特曼(Margaret P.Holtman) (美)吉利安·B·墨菲(Jillian·B·Murphy)

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World Journal of Hypertension 2015年第4期5卷 129-136页

作者： Ruth Chan Jason leung Jean Woo Department of Medicine and Thera-peutics the Chinese University of Hong Kong Jockey Club Centre for Osteoporosis Care and Control the Chinese University of Hong Kong

AIM: To investigate the associations of dietary acidbase load with prevalent and incident hypertension in community-living Chinese older adults in Hong ***: Participants aged ≥ 65 years participating in a cohort study examining the risk factors for osteoporosis completed a validated food frequency questionnaire(FFQ) at baseline between 2001 and *** net endogenous acid production(nEAP) was calculated using Frassetto's method based on the diet's protein to potassium ratio derived from the *** and 4-year incident hypertension was defined as systolic blood pressure ≥ 140 mm Hg and/or diastolic blood pressure ≥ 90 mm Hg and/or self-reported use of anti-hypertensive *** logistic regression was used for cross-sectional analysis(n =3956) to assess the association between estimated nEAP and prevalent hypertension,and for longitudinal analysis(n = 795) on its association with 4-year incident hypertension,with adjustment for various potential socio-demographic and lifestyle ***: Median estimated nEAP of the participants was 47.7(interquartile range: 36.2,60.9) g/m *** in the highest quartile of energy-adjusted estimated nEAP was associated with increased likelihood of prevalent hypertension than those in the lowest quartile of energy-adjusted estimated nEAP [multivariable OR = 1.66(95%CI: 1.22 to 2.26,P trend = 0.002)].no significant association was observed between energy-adjusted estimated nEAP and risk of incident ***: A high dietary acid load was independently associated with an increased likelihood of prevalent hypertension in ambulant older Chinese people in Hong *** longitudinal analyses failed to show any causal relationship between dietary acid load and hypertension in this population.

关键词： Acid-base balance Cohort Hypertension nutrition Chinese

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VSAT用户网络实例

成都信息工程学院学报 1993年第2期15卷 78-88页

作者： k.M.Sundara Murthy Barry O'neal Jay Alan Josepth J.Sanchez John Barry n.seshagiri Barry G.Evans dennis Shanley neville Miller Jim Stratigos Robert Mullinax John W.Warner Paul noble 王春芳

本文简要介绍具有代表性的几种VSAT网。这些网络的选择是研究了世界各地正在运行的不同类型的VSAT网后作出的。选择样本时考虑了如下几种因素,以便读者能够获取有用的信息,并对当前VSAT的状况有一个真实的了解。这些因素包括网络种类(... 详细信息

本文简要介绍具有代表性的几种VSAT网。这些网络的选择是研究了世界各地正在运行的不同类型的VSAT网后作出的。选择样本时考虑了如下几种因素,以便读者能够获取有用的信息,并对当前VSAT的状况有一个真实的了解。这些因素包括网络种类(共享的还是专用的)、区域(全球范围)、技术应用、业务、销售、用户(按生意种类分)、网络状态等。

关键词： VSAT 用户网络卫星网数据传送用户服务话音业务 Chrysler 地面网络主机系统业务网

Upfront consolidation treatment with 131I-mIBG followed by myeloablative chemotherapy and hematopoietic stem cell transplantation in high-risk neuroblastoma

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Pediatric Investigation 2020年第3期4卷 168-177页

作者： Jianhua Feng Frankie WT Cheng Alex Wk leung Vincent Lee Eva WM Yeung Hoi Ching Lam Jeanny Cheung Grace kS Lam Terry TW Chow Carol LS Yan Chi kong Li Department of Paediatrics The Chinese University of Hong KongHong KongChina Department of Paediatrics The First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina Department of Paediatrics and Adolescent Medicine Hong Kong Children’s HospitalHong KongChina Department of Clinical Oncology Prince of Wales HospitalThe Chinese University of Hong KongHong KongChina

Importance:131I-metaiodobenzylguanidine(131I-mIBG)has a significant targeted antitumor effect for ***,currently there is a paucity of data for the use of 131I-mIBG as a"front-line"therapeutic agent in those patients with newly diagnosed high-risk neuroblastoma as part of the conditioning regimen for myeloablative chemotherapy(MAC).Objective:To evaluate the feasibility of upfront consolidation treatment with 131I-mIBG plus MAC and hematopoietic stem cell transplantation(HSCT)in high-risk neuroblastoma ***:A retrospective,single-center study was conducted from 2003-2019 on newly diagnosed high-risk neuroblastoma patients without progressive disease(PD)after the completion of induction *** received 131I-mIBG infusion and MAC followed by ***:A total of 24 high-risk neuroblastoma patients were enrolled with a median age of 3.0 years at *** receiving this sequential consolidation treatment,3 of 13 patients who were in partial response(PR)before 131I-mIBG treatment achieved either complete response(CR)(n=1)or very good partial response(VGPR)(n=2)after *** a median follow-up duration of 13.0 months after 131I-mIBG therapy,the 5-year event-free survival and overall survival rates estimated were 29%and 38%for the entire cohort,and 53%and 67%for the patients who were in CR/VGPR at the time of 131I-mIBG ***:Upfront consolidation treatment with 131I-mIBG plus MAC and HSCT is feasible and tolerable in high-risk neuroblastoma patients,however the survival benefit of this 131I-mIBG regimen is only observed in the patients who were in CR/VGPR at the time of 131I-mIBG treatment.

关键词： neuroblastoma 131I-mIBG Transplantation

Feasibility, effectiveness, and perceptions of an Internet-and incentive-based behavioral weight loss intervention for overweight and obese college freshmen: A mixed methods approach

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Open Journal of Preventive Medicine 2013年第7期3卷 429-440页

作者： Brenda M. Davy kerry L. Potter Elizabeth A. dennis Parker Samantha Harden Jennie L. Hill Tanya M. Halliday Paul A. Estabrooks Bon Secours Health System Porstmouth USA Department of Human nutrition Foods and Exercise Virginia Tech Blacksburg USA Department of Human nutrition Foods and Exercise Virginia Tech Blacksburg USA Department of Human nutrition Foods and Exercise Virginia Tech Blacksburg USA Department of Human nutrition Foods and Exercise Virginia Tech Blacksburg USA Department of Family and Community Medicine Carilion Clinic Roanoke USA Office of Minority Health & Health Disparities Research Georgetown University Washington DC USA

Challenges inherent with the transition to college are often accompanied by weight gain among college freshmen. Weight gain and duration of obesity increase metabolic syndrome and cardiovascular disease risk in young adulthood, which supports the need for weight loss interventions tailored to college students. The purpose of this investigation was to conduct a mixed methods pilot trial to determine the efficacy and acceptability of a semester long Internet-and incentive-based weight loss intervention for overweight/obese college freshmen. Participants (n = 27, aged >18 yrs, BMI >25) were randomly assigned to a 12-week social cognitive theory (SCT)-based intervention (Fit Freshmen [FF]) or a health information control group. The FF intervention also included modest financial incentives for weight loss. Primary outcomes included body weight/composition, dietary and physical activity (PA) behaviors, and psychosocial measures (i.e. self-efficacy, self-regulation) associated with diet, PA, and weight loss. Students in the FF intervention participated in focus groups to provide qualitative feedback on program structure and design. FF participants demonstrated significant reductions (all group differences

关键词： College Freshmen Weight Gain Social Cognitive Theory Diet Physical Activity

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经巩膜固定人工晶体矫正无晶体眼的改良技术

世界核心医学期刊文摘（眼科学分册） 2005年第6期1卷 32-33页

作者： Young A.L. leung G.Y.S. Lam D.S.C. 郭长梅 Dept. of Ophthalmology/Visual Sci. The Chinese University of Hong Kong Prince ofWales Hospital Shatin N.T. Hong Kong China

Purpose. To examine the safety and efficacy of a modified scleral fixated intraocular lens (SFIOL) technique combining a scleral tunnel for intraocular lens (IOL) insertion, horizontal passage of sutures, and performing anterior vitrectomy through self-sealing pars plana sclerostomies. Methods. Retrospective reviewof all patients who underwent SFIOL for aphakic correction at the Department of Ophthalmology and Visual Sciences, The Chinese University of Hong kong, Prince of Wales Hospital, Hong kong (a tertiary referral centre) between October 2000 and December 2001 with either the modified or conventional techniques. Results. A total of 20 eyes were identified. Eight modified (Group 1) and 12 conventional (Group 2) with a mean follow-up of 18.3 months. Postoperatively, all the eyes improved on unaided preoperative acuity and they all had a stable and well-positioned IOL. In all, 85% (7/8) of eyes in Group 1 maintained or improved best-corrected visual acuity. Conclusions. The modified SFIOL technique was found to be as safe and effective as conventional techniques. The main advantages of this technique include easy intraoperative suture management and superior globe maintenance.

关键词：无晶体眼人工晶体改良技术改良术式睫状体平坦部前部玻璃体视觉科学水平位切除术技术联合