检索结果-南通市图书馆

Profiles and removal efficiency of polycyclic aromatic hydrocarbons by two different types of sewage treatment plants in Hong Kong

引用

Journal of Environmental Sciences 2017年第3期29卷 196-206页

作者： Yu Bon Man Ka Lai chow Zhang Cheng wing Yin Mo Yung Hau Chan James Chung Wah Lam Frankie Tat Kwong Lau wing cheong Fung Ming Hung Wong Consortium on Health EnvironmentEducation and Research(CHEER)and Department of Science and Environmental StudiesThe Education University of Hong KongTai PoHong KongChina Department of Environmental Engineering Jinan UniversityGuangzhou 510630China State Key Laboratory in Marine Pollution Croucher Institute for Environmental SciencesHong Kong Baptist University and City University of Hong KongKowloon TongHong KongChina Department of Geography Hong Kong Baptist UniversityKowloon TongHong KongChina College of Environment Sichuan Agricultural UniversityChengdu 611130China State Key Laboratory in Marine Pollution and Research Centre for the Oceans and Human Health City University of Hong KongKowioon TongHong KongChina The Drainage Services Department The Government of the Hong Kong Special Administrative RegionHong KongChina

Sewage discharge could be a major source of polycyclic aromatic hydrocarbons （PAHs） in the coastal waters. Stonecutters Island and Shatin Sewage Treatment Works （SCISTW and STSTW） in Hong Kong, adopted chemically enhanced primary treatment and biological treatment, respectively. This study aimed at （1） determining the removal efficiencies of PAHs, （2） comparing the capabilities in removing PAHs, and （3） characterizing the profile of each individual PAHs, in the two sewage treatment plants （STPs）. Quantification of 16 PAHs was conducted by a Gas Chromatography. The concentrations of total PAHs decreased gradually along the treatment processes （from 301 ± 255 and 307 ± 217 ns/L to 14.9 ± 12.1 and 63.3 ± 54.1 ng/L in STSTW and SCISTW, respectively）. It was noted that STSTW was more capable in removing total PAHs than SCISTW with average total removal effidency 94.4% ± 4.12% us. 79.2% ± 7.48% （p 〈 0.05）. The removal of PAHs was probably due to sorption in particular matter, confirmed by the higher distribution coefficient of individual and total PAHs in solid samples （dewatered sludge contained 92.5% and 74.7% of total PAHs in SCISTW and STSTW, respectively） than liquid samples （final efffluent-total contained 7.53% and 25.3% of total PAHs in STSTW and SCISTW, respectively）. Despite the impressive capability of STSTW and SCISTW in removing PAHs, there was still a considerable amount of total PAHs （1.85 and 39.3 ks/year, respectively for the two STPs） being discharged into Hone Kon coastal waters, which would be an environmental concern.

关键词： Sewage treatment plantsPAHsRemoval efficiencySludgeSewage

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

GEMFIBROZIL　INDUCED　MYOSITIS：A　CASE　REPORT　WITH　LIGHT　MICROSCOPIC　AND　ULTRASTRUCTURAL　STUDY

引用

Chinese Medical Sciences Journal 1994年第2期9卷 129-131页

作者： $$$$louis Tsun-cheung chow MRCPath FRCPA FACA and wing-hing chow MRCP (Institute of Pathology,Queen Elizabeth Hospital,Hong Kong ) Institute of Pathology Queen Elizabeth Hospital Hong Kong.

ＧＥＭＦＩＢＲＯＺＩＬＩＮＤＵＣＥＤＭＹＯＳＩＴＩＳ：ＡＣＡＳＥＲＥＰＯＲＴＷＩＴＨＬＩＧＨＴＭＩＣＲＯＳＣＯＰＩＣＡＮＤＵＬＴＲＡＳＴＲＵＣＴＵＲＡＬＳＴＵＤＹ￥ＬｏｕｉｓＴｓｕｎ－ｃｈｅｕｎｇＣｈｏｗ；ＭＲＣＰａ... 详细信息

ＧＥＭＦＩＢＲＯＺＩＬＩＮＤＵＣＥＤＭＹＯＳＩＴＩＳ：ＡＣＡＳＥＲＥＰＯＲＴＷＩＴＨＬＩＧＨＴＭＩＣＲＯＳＣＯＰＩＣＡＮＤＵＬＴＲＡＳＴＲＵＣＴＵＲＡＬＳＴＵＤＹ￥ＬｏｕｉｓＴｓｕｎ－ｃｈｅｕｎｇＣｈｏｗ；ＭＲＣＰａｔｈ；ＦＲＣＰＡ；ＦＡＣＡａｎｄＷ...

关键词： gemfibrozil 肌肉综合症药物治疗药物不良反应肌炎

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The Hong Kong consensus recommendations on the diagnosis and management of pancreatic cystic lesions

引用

Hepatobiliary Surgery and Nutrition 2023年第5期12卷 715-735,I0019-I0020页

作者： Tan-To Cheung Yuk Tong Lee Raymond Shing-Yan Tang Wong Hoi She Kai Chi Cheng Chin Cheung Cheung Keith Wan Hang Chiu Kenneth Siu Ho Chok wing Sun chow Tak wing Lai Wai-Kay Seto Thomas Yau Department of Surgery Queen Mary HospitalThe University of Hong KongHong KongChina Gastroenterologist in private practice Hong KongChina Department of Medicine and Therapeutics The Chinese University of Hong KongHong KongChina Department of Surgery Kwong Wah HospitalHong KongChina Department of Surgery Tuen Mun HospitalHong KongChina Department of Radiology&Imaging Queen Elizabeth HospitalHong KongChina Department of Medicine The University of Hong KongHong KongChina Department of Surgery Princess Margaret HospitalHong KongChina Department of Medicine School of Clinical MedicineThe University of Hong KongHong KongChina State Key Laboratory of Liver Research The University of Hong KongHong KongChina

Background:The finding of pancreatic cystic lesions(PCL)on incidental imaging is becoming increasingly *** studies report a prevalence of 2.2-44.7%depending on the population,imaging modality and indication for imaging,and the prevalence increases with *** with PCL are at risk of developing pancreatic cancer,a disease with a poor *** publication summarizes recommendations for the diagnosis and management of PCL and post-operative pancreatic exocrine insufficiency(PEI)from a group of local ***:Clinical evidence was consolidated from narrative reviews and consensus statements formulated during two online meetings in March *** expert panel included gastroenterologists,hepatobiliary surgeons,oncologists,radiologists,and ***:Patients with PCL require careful investigation and follow-up due to the risk of malignant transformation of these *** should undergo clinical investigation and pancreas-specific imaging to classify lesions and understand the risk profile of the *** indicated,patients should undergo pancreatectomy to excise *** pancreatectomy,patients are at risk of PEI,leading to gastrointestinal dysfunction and ***,such patients should be monitored for symptoms of PEI,and promptly treated with pancreatic enzyme replacement therapy(PERT).Patients with poor response to PERT may require increases in dose,addition of a proton pump inhibitor,and/or further investigation,including tests for pancreatic *** are also at risk of new-onset diabetes mellitus after pancreatectomy;they should be screened and treated with insulin if ***:These statements are an accurate summary of our approach to the diagnosis and management of patients with PCL and will be of assistance to clinicians treating these patients in a similar clinical landscape.

关键词： Pancreatic cystic lesions pancreatic endocrine insufficiency pancreatic enzyme replacement therapy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The host-targeting compound peruvoside has a broad-spectrum antiviral activity against positive-sense RNA viruses

引用

Acta Pharmaceutica Sinica B 2023年第5期13卷 2039-2055页

作者： Kan Xing Wu Thinesshwary Yogarajah Marcus wing Choy Loe Parveen Kaur Regina Ching Hua Lee Chee Keng Mok Yi Hao Wong Patchara Phuektes Li Sze Yeo Vincent T.K.chow Yong Wah Tan Justin Jang Hann Chu Department of Microbiology and Immunology Yong Loo Lin School of MedicineNational University Health SystemNational University of SingaporeSingapore 117597Singapore Department of Pathobiology Faculty of Veterinary MedicineKhonkaen UniversityKhonkaen 40002Thailand Infectious Disease Programme Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117597Singapore Institute of Molecular and Cell Biology Agency for ScienceTechnology and Research(A∗STAR)Singapore 138648Singapore Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore 308232Singapore NUSMed Biosafety Level 3 Core Facility Yong Loo Lin School of MedicineNational University of SingaporeSingapore 117599Singapore

Positive-sense RNA viruses modify intracellular calcium stores,endoplasmic reticulum and Golgi apparatus(Golgi)to generate membranous replication organelles known as viral *** factories provide a conducive and substantial enclave for essential virus replication via concentrating necessary cellular factors and viral proteins in ***,we identified the vital role of a broadspectrum antiviral,peruvoside in limiting the formation of viral ***,we revealed the pleiotropic cellular effect of Src and PLC kinase signaling via cyclin-dependent kinase 1 signaling leads to Golgi-specific brefeldin A-resistance guanine nucleotide exchange factor 1(GBF1)phosphorylation and Golgi vesiculation by peruvoside *** ramification of GBF1 phosphorylation fosters GBF1 deprivation consequentially activating downstream antiviral signaling by dampening viral factories *** investigation showed signaling of ERK1/2 pathway via cyclin-dependent kinase 1 activation leading to GBF1 phosphorylation at Threonine 1337(T1337).We also showed 100%of protection in peruvoside-treated mouse model with a significant reduction in viral titre and without measurable cytotoxicity in *** findings highlight the importance of dissecting the broad-spectrum antiviral therapeutics mechanism and pave the way for consideration of peruvoside,host-directed antivirals for positive-sense RNA virus-mediated disease,in the interim where no vaccine is available.

关键词： Positive-sense RNA viruses Peruvoside Antiviral CDKI signaling Viral factories Calcium efflux Broad-spectrum Golgi apparatus

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Delayed diagnosis of 22q11.2 deletion syndrome in an adult Chinese lady

引用

Chinese Medical Journal 2012年第16期125卷 2945-2947页

作者： SHEA Yat-fung LEE Chi-ho Harinder Gill chow wing-sun LAM Yui-ming LUK Ho-ming LAM Stephen Tak-sum CHU Leung-wing Department of Medicine Queen Mary Hospital the University ofHong Kong Hong Kong China Clinical Genetic Service Department of Health The Government of Hong Kong Special Administrative Region Hong Kong China

We report a 32 year-old Chinese lady with history of tetralogy of Fallot, presented to us with chest pain due to hypocalcemia secondary to hypoparathyroidism. With her dysmerphic facial features and intellectual disability 22q11.2 deletion was suspected and confirmed by genetic study. Clinicians should consider the diagnosis of DiGeorge syndrome in adult patient with past medical history of congenital heart disease, facial dysmorphism, intellectual disability and primary hypoparathyroidism.

关键词： hypocalcemia DiGeorge syndrome adult

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Voltage-gated K^+channels promote BT-474 breast cancer cell migration

引用

Chinese Journal of Cancer Research 2018年第6期30卷 613-622页

作者： louis WC chow Ka-Shun Cheng Kar-Lok Wong Yuk-Man Leung State Key Laboratory of Quality Research in Chinese Medicines Macao University of Science and TechnologyTaipaMacao 999078China UNIMED Medical Institute Hong Kong 999077China Organisation for Oncology and Translational Research Hong Kong 999077China Department of Anesthesiology China Medical University HospitalTaiehung 40447TaiwanChina Department of Anesthesiology the Qingdao University Yuhuangding HospitalYantai 264000China Department of Physiology China Medical UniversityTaichung 40402TaiwanChina

Objective: A variety of ion channels have been implicated in breast cancer proliferation and *** K+(Kv) channels not only cause repolarization in excitable cells,but are also involved in multiple cellular functions in non-excitable *** this study we investigated the role of Kv channels in migration of BT474 breast cancer ***: Transwell technique was used to separate migratory cells from non-migratory ones and these two groups of cells were subject to electrophysiological examinations and microfluorimetric measurements for cytosolic *** migration was examined in the absence or presence of Kv channel ***: When compared with non-migratory cells,migratory cells had much higher Kv current densities,but rather unexpectedly,more depolarized membrane potential and reduced *** transcriptasepolymerase chain reaction(RT-PCR) analysis revealed the presence of Kv1.1,Kv1.3,Kv1.5,Kv2.1,Kv3.3,Kv3.4 and Kv4.3 *** migration was markedly inhibited by tetraethylammonium(TEA),a delayed rectifier Kv channel blocker,but not by 4-aminopyridine,an A-type Kv channel ***: Taken together,our results show that increased Kv channel expression played a role in BT474 cell migration,and Kv channels could be considered as biomarkers or potential therapeutic targets for breast cancer *** mechanism(s) by which Kv channels enhanced migration appeared unrelated to membrane hyperpolarization and Cainflux.

关键词： Breast cancer Kv channels migration biomarkers

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A joint computational-experimental study of intracranial aneurysms:Importance of the aspect ratio

引用

Journal of Hydrodynamics 2016年第3期28卷 462-472页

作者： Simon Sui-Man LAI Abraham Yik-Sau TANG Anderson Chun-On TSANG Gilberto Ka-Kit LEUNG Alfred Cheuk-Hang YU Kwok wing chow Department of Electrical and Electronic Engineering University of Hong Kong Hong Kong China Department of Mechanical Engineering University of Hong Kong Hong Kong China Department of Surgery Li Ka Shing Faculty of Medicine University of Hong Kong Hong Kong China Department of Electrical and Computer Engineering University of Waterloo Ontario Canada

Rupture of a cerebral aneurysm （abnormal swelling of blood vessel in the brain） will cause subarachnoid hemorrhage, and will result in an alarming rate of mortality and morbidity. A joint computational-experimental study is conducted to assess the importance of the aspect ratio in the dynamics of blood flow. The aspect ratio is defined here to be the ratio of the height of the aneurysm to the linear dimension of the neck. Idealized models of such aneurysms located near a bifurcation point were investigated. Numerical simulations for hemodynamic properties like shear stress and flow rate were performed. The computational results were verified experimentally with specially fabricated phantoms, blood mimicking fluid and Doppler ultrasound imaging. Excellent agreements were obtained. Two features are highlighted, providing information in the intensely debated link between rupture risk and geometric factors. On increasing the aspect ratios, firstly, a jet impinging on the distal part of the neck can be observed, and secondly, a region of positive shear stress gradient can be found there. Furthermore, computational analyses for four patient-specific models were conducted to correlate with the results of idealized models and to provide further clinical insight.

关键词： intracranial aneurysms aspect ratio Doppler ultrasound

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Long-term clinical outcomes of drug-eluting stents ***-metal stents in Chinese geriatric patients

引用

Journal of Geriatric Cardiology 2013年第4期10卷 330-335页

作者： Pak-Hei Chan Sha-Sha Liu Hung-Fat Tse wing-Hing chow Man-Hong Jim Hee-Hwa HO Chung Wah Siu Department of Medicine Li Ka Shing Faculty of Medicine The University of Hong Kong 102 Pokfulam Rd Hong Kong China Cardiac Medical Unit Grantham Hospital 125 Wong Chuk Hang Rd Aberdeen Hong Kong China

BACKGROUND & OBJECTIVE: Little is known about the relative efficacies of percutaneous coronary intervention (PCI) with drug-eluting stents (DES) and bare-metal stents (BMS) in elderly patients。 The objective of this study was to evaluate the clinical outcome for geriatric patients who received either DES or BMS。 METHODS: From January 2002 to October 2005, 199 consecutive Chinese geriatric patients (≥ 75 years old) underwent PCI with coronary DES or BMS implantation at our institution。 We analyzed the major clinical end points that included all-cause mortality, cardiovascular death, myocardial infarction, target lesion revascularization (TLR), stent thrombosis, and bleeding complications。 RESULTS: The three-year cumulative rates of all-cause mortality, cardiovascular death, and myocardial infarction were significantly lower in the DES group (6.3%,3.6%,5.4%) compared with the BMS group (16.2%,11.5%,14.9%; P <0.05)。 No significant differences were found in the three-year cumulative rate for target lesion revascularization (6.3% vs4.6%, P =0.61) or stent thrombosis (3.6% vs2.3%, P =0.70)。 Likewise, there were no statistically significant differences in the cumulative rate for intracranial hemorrhage, or major and minor hemorrhage at three years。 CONCLUSIONS: DES-based PCI was associated with a significant reduction in the three-year cumulative rate of all-cause mortality, cardiovascular death, and myocardial infarction compared with BMS, without increased risk of TLR, stent thrombosis, or bleeding complications at three years in this group of Chinese geriatric patients。

关键词： Bare-metal stents Drug-eluting stents Geriatric patients Percutaneous coronary intervention

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于非线性浮力频率分布分层流的三波共振畸形波分析

引用

Acta Mechanica Sinica 2023年第7期39卷 141-151页

作者：殷会敏潘青赵天乐周国荣 Department of Mechanical Engineering University of Hong KongPokfulamHong Kong

本文对位于海洋上层温跃层中的大幅波动进行了理论分析.该内畸形波可能由具有二次非线性的三波共振而引起.虽然三波共振中的畸形波精确解析解已经在数学物理文献中被推导出,但其在流体动力学中的应用尚未被充分研究.本文计算了在非线性... 详细信息

本文对位于海洋上层温跃层中的大幅波动进行了理论分析.该内畸形波可能由具有二次非线性的三波共振而引起.虽然三波共振中的畸形波精确解析解已经在数学物理文献中被推导出,但其在流体动力学中的应用尚未被充分研究.本文计算了在非线性浮力频率分布下三波共振演化方程中的系数.调制不稳定性是指由色散和非线性效应之间的相互作用引起的干扰增长,虽然不稳定性分析是基于线性化研究的,但来自增长率谱的信息可以与畸形波的非线性、数值鲁棒性测试的结果相关联.最后,通过解析延拓将空间变量扩展为复数进行了解析畸形波解的极点分析.对于具有一个或两个峰值的畸形波,物理空间中最大位移的位置与轨迹转折点处的极点的实部相同或近似相等.这些数值和分析研究构成了理解海洋上层大规模瞬态运动的框架.

关键词：数学物理二次非线性调制不稳定性解析延拓空间变量分层流精确解析解非线性效应

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Theoretical study of defect impact on two-dimensional MoS_2

引用

Journal of Semiconductors 2015年第12期36卷 18-23页

作者： Anna V.Krivosheeva Victor L.Shaposhnikov Victor E.Borisenko Jean-louis Lazzari chow Waileong Julia Gusakova Beng Kang Tay Belarusian State University of Informatics and Radioelectronics CNRS Aix-Marseille Université NOVITAS Nanoelectronics Centre of Excellence School of Electrical and Electronic Engineering Nanyang Technological University CINTRA CNRS NTUTHALES Nanyang Technological University

Our theoretical findings demonstrate for the first time a possibility of band-gap engineering of monolayer MoS2 crystals by oxygen and the presence of vacancies. Oxygen atoms are revealed to substitute sulfur ones, forming stable MoS2-xOx ternary compounds, or adsorb on top of the sulfur atoms. The substituting oxygen provides a decrease of the band gap from 1.86 to 1.64 eV and transforms the material from a direct-gap to an indirect-gap semiconductor. The surface adsorbed oxygen atoms decrease the band gap up to 0.98 eV depending on their location tending to the metallic character of the electron energy bands at a high concentration of the adsorbed atoms. Oxygen plasma processing is proposed as an effective technology for such band-gap modifications.

关键词： two-dimensional crystal molybdenum disulfide band gap vacancy oxygen

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：