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Vascular resection and reconstruction at pancreatico-duodenectomy:technical issues

Hepatobiliary & Pancreatic Diseases International 2012年第3期11卷 234-242页

作者： edward cs lai Pedder Clinic 4/F 9 Queen's Road Central

BACKGROUND:With the improvement of perioperative management over the years,pancreatico-duodenectomy has become a safe operation despite its technical *** presence of concomitant visceral artery occlusion unrelated to the underlying malignancy and concomitant major venous infiltration by tumor poses additional hazards to resection which could compromise the postoperative *** SOURCES:A MEDLINE database search was performed to identify relevant articles using the key ords 'median arcuate ligament syndrome','superior mesenteric artery','replaced right hepatic artery',and 'portal vein resection'.Additional papers and book chapters were identified by a manual search of the references from the key ***:Computed tomography with 3-dimensional reconstruction of the vascular anatomy provides most key information on the potential vascular problems encountered during surgery.A trial clamping of the gastroduodenal artery provides a simple intraoperative assessment for the presence of any significant visceral arterial *** on the timing of diagnosis,division of the median arcuate ligament,bypass or endovascular stenting should be *** and superior mesenteric vein resection had been used with increasing frequency and *** steps and methods taken to reconstruct the venous continuity vary with individual surgeons,and the anatomical variations *** segmental loss of the portal vein,opinions differs with regard to the preservation of the splenic vein,and when divided,the necessity of restoring its continuity;source of the autologous vein graft when needed and whether the use of synthetic graft is a safe ***:During a pancreatico-duodenectomy,images of computed tomography must be carefully studied to appreciate the changes and variation of vascular *** preoperative preparation,acute awareness of the probable arterial and venous anatomical variation and the availability of expert

关键词： pancreatico-duodenectomy vein resection celiac axis compression

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An antibiotic-free platform for eliminating persistent Helicobacter pylori infection without disrupting gut microbiota

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Acta Pharmaceutica Sinica B 2024年第7期14卷 3184-3204页

作者： Yongkang lai Tinglin Zhang Xiaojing Yin Chunping Zhu Yiqi Du Zhaoshen Li Jie Gao Department of Gastroenterology Shanghai Changhai HospitalNaval Medical UniversityShanghai 200433China Changhai Clinical Research Unit Shanghai Changhai HospitalNaval Medical UniversityShanghai 200433China Department of Gastroenterology Ganzhou People’s Hospital Affiliated to Nanchang UniversityGanzhou 341000China National Key Laboratory of Immunity and Inflammation Naval Medical UniversityShanghai 200433China Shanghai Key Laboratory of Nautical Medicine and Translation of Drugs and Medical Devices Shanghai 200433China

Helicobacter pylori(***)infection remains the leading cause of gastric adenocarcinoma,and its eradication primarily relies on the prolonged and intensive use of two ***,antibiotic resistance has become a compelling health issue,leading to *** eradication treatment failure ***,the powerlessness of antibiotics against biofilms,as well as intracellular *** and the long-term damage of antibiotics to the intestinal microbiota,have also created an urgent demand for antibiotic-free ***,we describe an antibiotic-free,multifunctional copperorganic framework(HKUST-1)platform encased in a lipid layer comprising phosphatidic acid(PA),rhamnolipid(RHL),and cholesterol(CHOL),enveloped in chitosan(cs),and loaded in an ascorbyl palmitate(AP)hydrogel:AP@cs@Lip@*** platform targets inflammatory sites where *** aggregates through electrostatic ***,hydrolysis by matrix metalloproteinases(MMPs)releases cs-encased nanoparticles,disrupting bacterial urease activity and membrane ***,RHL disperses biofilms,while PA promotes lysosomal acidification and activates host autophagy,enabling clearance of intracellular ***,AP@cs@Lip@HKUST-1 alleviates inflammation and enhances mucosal repair through delayed Cu^(2+) release while preserving the intestinal ***,this platform presents an advanced therapeutic strategy for eradicating persistent *** infection without inducing drug resistance.

关键词： Helicobacter pylori infection Antibiotic-free Biofilms Autophagy Gastric mucosal repair Drug resistance Intestinal microbiota Anti-inflammation

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Multiscale and Auto-Tuned Semi-Supervised Deep Subspace Clustering and Its Application in Brain Tumor Clustering

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Computers, Materials & Continua 2024年第6期79卷 4741-4762页

作者： Zhenyu Qian Yizhang Jiang Zhou Hong Lijun Huang Fengda Li Khin Wee lai Kaijian Xia School of Artificial Intelligence and Computer Science Jiangnan UniversityWuxi214122China Department of Medical Imaging The Changshu Affiliated Hospital of Soochow UniversitySuzhou215500China Department of Neurosurgery The Changshu Affiliated Hospital of Soochow UniversityChangshu215500China Department of Scientific Research The Changshu Affiliated Hospital of Soochow UniversitySuzhou215500China Changshu Key Laboratory of Medical Artificial Intelligence and Big Data Suzhou215500China Department of Biomedical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur50603Malaysia

In this paper,we introduce a novel Multi-scale and Auto-tuned Semi-supervised Deep Subspace Clustering(MAS-DSC)algorithm,aimed at addressing the challenges of deep subspace clustering in high-dimensional real-world data,particularly in the field of medical *** deep subspace clustering algorithms,which are mostly unsupervised,are limited in their ability to effectively utilize the inherent prior knowledge in medical *** MAS-DSC algorithm incorporates a semi-supervised learning framework that uses a small amount of labeled data to guide the clustering process,thereby enhancing the discriminative power of the feature ***,the multi-scale feature extraction mechanism is designed to adapt to the complexity of medical imaging data,resulting in more accurate clustering *** address the difficulty of hyperparameter selection in deep subspace clustering,this paper employs a Bayesian optimization algorithm for adaptive tuning of hyperparameters related to subspace clustering,prior knowledge constraints,and model loss *** experiments on standard clustering datasets,including ORL,Coil20,and Coil100,validate the effectiveness of the MAS-DSC *** results show that with its multi-scale network structure and Bayesian hyperparameter optimization,MAS-DSC achieves excellent clustering results on these ***,tests on a brain tumor dataset demonstrate the robustness of the algorithm and its ability to leverage prior knowledge for efficient feature extraction and enhanced clustering performance within a semi-supervised learning framework.

关键词： Deep subspace clustering multiscale network structure automatic hyperparameter tuning semi-supervised medical image clustering

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Self-polarized RGB device realized by semipolar micro-LEDs and perovskite-in-polymer films for backlight applications

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Opto-Electronic Advances 2024年第3期7卷 35-49页

作者： Tingwei Lu Yue Lin Tianqi Zhang Yue Huang Xiaotong Fan Shouqiang lai Yijun Lu Hao-Chung Kuo Zhong Chen Tingzhu Wu Rong Zhang School of Electronic Science and Engineering Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005China Department of Photonics and Graduate Institute of Electro-Optical Engineering College of Electrical and Computer EngineeringYang Ming Chiao Tung UniversityHsinchu 30010China Semiconductor Research Center Hon Hai Research InstituteTaipei 11492China.

In backlighting systems for liquid crystal displays,conventional red,green,and blue(RGB)light sources that lack polarization properties can result in a significant optical loss of up to 50%when passing through a *** address this inefficiency and optimize energy utilization,this study presents a high-performance device designed for RGB polarized *** device employs an array of semipolar blueμLEDs with inherent polarization capabilities,coupled with mechanically stretched films of green-emitting csPbBr3 nanorods and red-emitting csPbI3-cs4PbI6 hybrid *** csPbBr3 nanorods in the polymer film offer intrinsic polarization emission,while the aligned-wire structures formed by the stable csPbI3-cs4PbI6 hybrid nanocrystals contribute to substantial anisotropic emissions,due to their high dielectric *** resulting device achieved RGB polarization degrees of 0.26,0.48,and 0.38,respectively,and exhibited a broad color gamut,reaching 137.2%of the NTSC standard and 102.5%of the Rec.2020 *** compared to a device utilizing c-plane LEDs for excitation,the current approach increased the intensity of light transmitted through the polarizer by 73.6%.This novel fabrication approach for polarized devices containing RGB components holds considerable promise for advancing next-generation display technologies.

关键词： halide perovskite light-emitting-diodes polarized emission nanocrystals stability

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公共服务合作生产:理论图景与实践模式

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江汉论坛 2024年第4期 55-62页

作者：魏来刘泉灵华中师范大学政治学部华中师范大学公共管理学院湖北武汉430079 华中师范大学政府治理与公共政策研究院湖北武汉430079

20世纪70年代以来,合作生产作为公共服务供给的新模式被引入公共管理实践,并成为公共管理研究的一个重要议题。通过系统梳理相关前沿文献可以发现:合作生产是政府和公民围绕公共服务递送而结成的新型关系和进行的混合活动,包括个人、团... 详细信息

20世纪70年代以来,合作生产作为公共服务供给的新模式被引入公共管理实践,并成为公共管理研究的一个重要议题。通过系统梳理相关前沿文献可以发现:合作生产是政府和公民围绕公共服务递送而结成的新型关系和进行的混合活动,包括个人、团体以及第三部门等主体,涵盖公共服务的规划、设计、交付与评估等各个环节;合作生产的理论嬗变内含于从传统公共行政、新公共管理到新公共治理的范式演替,其主导理念经历了从控制参与逻辑、产品主导逻辑向服务主导逻辑和公共服务逻辑的转变;合作生产的实践轨迹映射出政府与公民的角色转向路径,形成了一元操纵型、吸纳安抚型、政社互补型和公民主控型等基本模式。未来,应探索和构建本土的合作生产模式,引导公民积极参与公共服务供给,形成制度化的合作网络,在实践基础上贡献富有中国风格并兼具学科一般性的合作生产理论知识。

关键词：合作生产公共服务公共行政范式价值共创

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Extraction of 17β-estradiol in water using non-imprinted polymer submicron particles in membrane filters

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Journal of Environmental Sciences 2010年第11期22卷 1820-1825页

作者： Yiyan Li edward P. C. lai Institute of Environmental Science Carleton University 1125 Colonel By Drive Ottawa Ontario K1S 5B6 Canada. Department of Chemistry Carleton University 1125 Colonel By Drive Ottawa Ontario K1S 5B6 Canada

17β-Estradiol （E2） is an endocrine disrupting chemical of harm to both animals and human beings at a low concentration level （ng/L）. It cannot be completely removed by wastewater treatments, and is often detected in both environment and drinking waters. The purpose of this feasibility study, towards environmental engineering in the field of water analysis and treatment, was to remove E2 by extraction using non-imprinted polymer （NIP） submicron particles. Experimental results showed that 0.5 mg/L of E2 could be completely extracted by adding 10 mg of NIP particles directly into 10 mL of water. However, the extraction efficiency decreased to 64% for 100 mL of water. prefilling the NIP particles inside a membrane filter showed a potential for water treatment of a large volume, requiring no effort to distribute the particles uniformly in the water. High extraction efficiency （80 ± 10）% for E2 was achieved for 100 mL of water. A total mass of 0.29 mg E2 was extracted from 1000 mL of water containing 0.8 mg/L E2 （by using only 10 mg of NIP particles）. Both efficiency and mass capacity can be increased, by scaling up the amount of NIP particles, towards environmental engineering applications.

关键词： 17β-estradiol non-imprinted polymer submicron particles membrane filter pollution abatement technology

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Use of sub-micron sized resin particles for removal of endocrine disrupting compounds and pharmaceuticals from water and wastewater

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Journal of Environmental Sciences 2017年第1期29卷 256-264页

作者： Audrey Murray Banu rmeci edward P.C.lai Department of Civil and Environmental Engineering Carleton University Department of Chemistry Carleton University

Endocrine disrupting compounds（EDcs） and pharmaceuticals pose a challenge for water and wastewater treatment because they exist at very low concentrations in the presence of substances at much higher concentrations competing for adsorption ***-micron sized resin particles（approximately 300 nm in diameter）（SMR） were tested to evaluate their potential as a treatment for EDcs including：17-β estradiol（E2）,17-α ethinylestradiol（EE2）,estrone（E1）,bisphenol A（BPA）,and diethylstilbestrol（DES） as well as 12 *** were able to remove 98%of spiked E2,80%of EE2,87%of BPA,and up to 97%of DES from *** a 0.5 ppm mixture of E2,EE2,E1,BPA and DES,the minimum removal was24%（E2） and the maximum was 49%（DES）.They were also able to remove the pharmaceuticals from deionized water and ***,SMR are a promising advanced treatment for removal of both EDcs and pharmaceuticals.

关键词： Water treatment Wastewater treatment Pharmaceuticals Endocrine disrupting compounds Micropollutants Adsorption

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基于农村内源性发展模式的新型夯土建筑策略——以“一专一村”西南农村地区项目为例

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建筑学报 2024年第1期 105-111页

作者：万丽吴恩融迟辛安柏文峰周来香港中文大学建筑学院中国香港999077 昆明理工大学建筑与城市规划学院昆明650500

提出内源性发展理念与当地生土建筑相结合的农村建设思路,以“一专一村”计划的一系列新型夯土建筑实践为例,从与环境和谐相处、发掘本土价值、尊重当地人的主体性、引入外部智力资源几个方面进行深入分析,总结出“科学方法、适宜技术... 详细信息

提出内源性发展理念与当地生土建筑相结合的农村建设思路,以“一专一村”计划的一系列新型夯土建筑实践为例,从与环境和谐相处、发掘本土价值、尊重当地人的主体性、引入外部智力资源几个方面进行深入分析,总结出“科学方法、适宜技术”的创新思路及“本土材料、本土技术、本土工匠”的组织原则,探讨系统性、跨学科、跨部门联动,提升乡村发展内生动力的建造模式。

关键词：内源性发展内生动力夯土建筑可持续发展

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有机/无机掺杂复合水凝胶智能窗的结构设计与性能

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山东化工 2024年第17期53卷 73-77页

作者：来思雨天津工业大学材料科学与工程学院天津300387

水凝胶智能窗是一种智能响应窗户,其特点是在临界溶液温度附近能够通过可逆状态转变来调制太阳光,从而达到减少能耗的目的。以羟丙基纤维素、聚(N-异丙基丙烯酰胺)和上铯钨青铜纳米材料为原料,设计制备了一种复合水凝胶(HPC-PNIPAM/cs_(... 详细信息

水凝胶智能窗是一种智能响应窗户,其特点是在临界溶液温度附近能够通过可逆状态转变来调制太阳光,从而达到减少能耗的目的。以羟丙基纤维素、聚(N-异丙基丙烯酰胺)和上铯钨青铜纳米材料为原料,设计制备了一种复合水凝胶(HPC-PNIPAM/cs_(x)WO_(3))智能窗。该复合水凝胶在低温下透过率为68.93%,高温下则降至0.82%,太阳光调制能力优异。其响应时间缩短至12.9 s,响应效率明显提升。与传统的水凝胶智能窗相比,这种新型窗户不仅具有更适宜的临界溶液温度,还展现出优秀的太阳光调制能力。这为新型水凝胶类智能窗的开发提供了重要的理论基础。

关键词：智能窗热致变色材料羟丙基纤维素太阳光调制能力

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In vivo neuronal and astrocytic activation in somatosensory cortex by acupuncture stimuli

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Neural Regeneration Research 2022年第11期17卷 2526-2529页

作者： Xiao-Yue Chang Kai Chen Tong Cheng Pui To lai Li Zhang Kwok-Fai So edward S.Yang Key Laboratory of CNS Regeneration(Minstry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Electrical and Electronic Engineering The University of Hong KongHong Kong Special Administrative RegionChina Center for Brain Science and Brain-Inspired Intelligence Guangdong-Hong Kong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Guangzhou Regenerative Medicine and Health Guangdong Laboratory GuangzhouGuangdong ProvinceChina State Key Laboratory of Brain and Cognitive Science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina

Acupuncture is a medical treatment that has been widely pra cticed in China for over 3000 years,yet the neural mechanisms of acupuncture are not fully *** hypothesized that neurons and astrocytes act independently and synergistically under acupuncture *** investigate this,we used two-photon in vivo calcium reco rding to observe the effects of acupuncture stimulation at ST36(Zusanli)in *** stimulation in peripheral acupoints potentiated calcium signals of pyramidal neurons and astrocytes in the somatosensory cortex and resulted in late-onset calcium transients in *** inhibition of neurons augmented the astrocytic *** findings suggest that acupuncture activates neuronal and astrocytic activity in the somatosensory co rtex and provide evidence for the involvement of both neurons and astrocytes in acupuncture treatment.

关键词： acupuncture astrocyte chemogenetic neuron N-methyl-D-aspartate receptor somatosensory cortex transient receptor potential A1 two-photon in vivo imaging

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