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Prediction of massive transfusion in trauma patients in the surgical intensive care units (THAI-SICU study)

Chinese Journal of Traumatology 2019年第4期22卷 219-222页

作者： Osaree Akaraborworn Onuma Chaiwat Sunisa Chatmongkolchart Chanatthee Kitsiripant Kaweesak Chittawatanarat Sunthiti Morakul Thammasak Thawitsri Petch Wacharasintg Sujaree Poopipatpab waraporn chau-in Chaiyapruk Kusumaphanyo Division of Trauma and Critical Care Department of Surgery Faculty of Medicine Prince of Songkla University Hat Yai Songkhla Thailand Department of Anesthesiology Faculty of Medicine Srinakharinwirot University Nakhon Nayok Thailand Department of Anesthesiology. Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand Department of Anesthesiology Faculty of Medicine Prince of Songkla University Hat Yai Songkhla Thailand Department of Surgery Faculty of Medicine Chiang Mai University Chiang Mai Thailand Department of Anesthesiology Faculty of Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand Department of Anesthesiology Faculty of Medicine King Chulalongkorn Memorial Hospital Bangkok Chulalongkorn University Thailand Department of Anesthesiology Phramongkutklao Hospital Bangkok Thailand Department of Anesthesiology Navamindradhiraj University Bangkok Thailand Department of Anesthesiology Khon Kaen University Khon Kaen Thailand

Purpose: After damage control surgery, trauma patients are transferred to intensive care units to restore the physiology. During this period, massive transfusion might be required for ongoing bleeding and coagulopathy. This research aimed to identify predictors of massive blood transfusion in the surgical intensive care units (SICUs). Methods: This is an analysis of the THAI-SICU study which was a prospective cohort that was done in the 9-university-based SICUs in Thailand. The study included only patients admitted due to trauma mechanisms. Massive transfusion was defined as received >10 units of packed red blood cells on the first day of admission. Patient characteristics and physiologic data were analyzed to identify the potential factors. A multivariable regression was then performed to identify the significant model. Results: Three hundred and seventy patients were enrolled. Sixteen patients (5%) received massive transfusion in the SICUs. The factors that significantly predicted massive transfusion were an initial sequential organ failure assessment (SOFA)>9 (risk difference (RD) 0.13, 95% confidence interval (CI): 0.03—0.22, p = 0.01);intra-operative blood loss > 4900 mL (RD 0.33, 95% CI: 0.04—0.62, p = 0.02) and intra-operative blood transfusion > 10 units (RD 0.45, 95% Cl: 0.06 to 0.84, p = 0.02). The probability to have massive transfusion was 0.976 in patients who had these 3 factors. Conclusion: Massive blood transfusion in the SICUs occurred in 5%. An initial SOFA >9, intra-operative blood loss >4900 mL, and intra-operative blood transfusion >10 units were the significant factors to predict massive transfusion in the SICUs.

关键词： Massive transfusion Massive bleeding Surgical intensive care Multiple trauma

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FE65:a hub for neurodevelopment

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Neural Regeneration Research 2024年第9期19卷 1883-1884页

作者： Yuqi Zhai Laura Lok-Haang Ng Dennis Dik-Long chau Kwok-Fai Lau School of Life Sciences Faculty of ScienceThe Chinese University of Hong KongHong Kong Special Administrative RegionChina

FE65,initially identified as a binding partner of amyloid precursor protein(APP),is an adaptor protein enriched in the brain and regulated during development.FE65 belongs to the FE65 protein family.This family is comp... 详细信息

关键词： family development partner

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An Improved Golden Jackal Optimization Algorithm Based on Multi-strategy Mixing for Solving Engineering Optimization Problems

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Journal of Bionic Engineering 2024年第2期21卷 1092-1115页

作者： Jun Wang Wen-chuan Wang Kwok-wing chau Lin Qiu Xiao-xue Hu Hong-fei Zang Dong-mei Xu College of Water Resources North China University of Water Resources and Electric PowerZhengzhou450046People’s Republic of China Department of Civil and Environmental Engineering The Hong Kong Polytechnic UniversityHong KongPeople’s Republic of China

Nowadays,optimization techniques are required in various engineering domains to find optimal solutions for complex problems.As a result,there is a growing tendency among scientists to enhance existing nature-inspired algorithms using various evolutionary strategies and to develop new nature-inspired optimization methods that can properly explore the feature space.The recently designed nature-inspired meta-heuristic,named the Golden Jackal Optimization(GJO),was inspired by the collaborative hunting actions of the golden jackal in nature to solve various challenging problems.However,like other approaches,the GJO has the limitations of poor exploitation ability,the ease of getting stuck in a local optimal region,and an improper balancing of exploration and exploitation.To overcome these limitations,this paper proposes an improved GJO algorithm based on multi-strategy mixing(LGJO).First,using a chaotic mapping strategy to initialize the population instead of using random parameters,this algorithm can generate initial solutions with good diversity in the search space.Second,a dynamic inertia weight based on cosine variation is proposed to make the search process more realistic and effectively balance the algorithm's global and local search capabilities.Finally,a position update strategy based on Gaussian mutation was introduced,fully utilizing the guidance role of the optimal individual to improve population diversity,effectively exploring unknown regions,and avoiding the algorithm falling into local optima.To evaluate the proposed algorithm,23 mathematical benchmark functions,CEC-2019 and CEC2021 tests are employed.The results are compared to high-quality,well-known optimization methods.The results of the proposed method are compared from different points of view,including the quality of the results,convergence behavior,and robustness.The superiority and high-quality performance of the proposed method are demonstrated by comparing the results.Furthermore,to demonstrate its applicability,it is employed to solve four c

关键词： Golden jackal optimization Chaotic mapping Dynamic inertia weight Dimensional Gaussian variation Muskingum

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面向全息MIMO 6G通信的电磁信道建模理论与方法

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电子与信息学报 2024年第5期46卷 1940-1950页

作者：黄崇文季然魏丽宫铁瑞陈晓明沙威杨军张朝阳 Yuen chau 浙江大学信息与电子工程学院杭州310027 新加坡科技与设计大学新加坡487372 西安交通大学信息与通信工程学院西安710049 中兴通讯股份有限公司深圳518000 新加坡南洋理工大学新加坡639798

全息多输入多输出(HMIMO)是6G通信中的新兴技术,相应阵列由固定物理孔径下的密布天线单元组成。全息MIMO是电磁约束下Massive MIMO天线技术的拓展。全息MIMO系统在有效提升无线通信性能方面具有极大的潜力。比如,可用最小的功率损耗实... 详细信息

全息多输入多输出(HMIMO)是6G通信中的新兴技术,相应阵列由固定物理孔径下的密布天线单元组成。全息MIMO是电磁约束下Massive MIMO天线技术的拓展。全息MIMO系统在有效提升无线通信性能方面具有极大的潜力。比如,可用最小的功率损耗实现尽可能大的连续孔径,灵活控制目标方向的电磁波传输等。但是,由于全息MIMO系统包含大量的紧密分布的天线单元,且单元之间的距离小于半波长,因而造成严重的电磁耦合作用。这些耦合使传统的独立同分布的信道假设失效。因此,如何设计一个有效且贴近实际的信道建模成为当前全息MIMO研究中最具挑战性的问题之一。针对该挑战,该文研究了基于电磁场理论的4种信道建模方式,它们都能很好描述全息MIMO系统中的电磁波传输特征。第1种是基于平面格林函数的精确信道建模方式,该方式将自由空间中点对点的格林函数扩展到平面之间积分形式的格林函数,通过积分计算来构造两个全息MIMO平面之间的通信信道,但该方法的复杂度较高。第2, 3种方法则分别采用了平面波展开和球面波展开来近似全息MIMO的通信信道,这两种方案的复杂度更低。其中,基于平面波展开的信道建模形式相对简单,更适用于远场,但是会低估单元强耦合时的最大系统容量;基于球面波展开的信道建模能更好捕捉电磁波信道几何特征,但其复杂度较高。最后介绍基于随机格林函数的信道建模方法,主要描述富散射环境或瑞利信道中电磁波的随机特性。

关键词：全息MIMO通信电磁波理论信道建模

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巴西柠檬草

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上海蔬菜 2024年第1期 90-92页

作者： Lin chau Ming 巴西圣保罗州立大学农业科学学院圣保罗博图卡图18610-034

巴西柠檬草为一种药用植物,用途广泛,开发前景广阔。从巴西柠檬草叶片中提取出的精油可用于制作香水、香薰,其精油中含有柠檬醛和萜类化合物,可用于趋避害虫、预防植物病害,巴西柠檬草茶具有较强的抗氧化和抗菌活性,是治疗流感的民间偏... 详细信息

巴西柠檬草为一种药用植物,用途广泛,开发前景广阔。从巴西柠檬草叶片中提取出的精油可用于制作香水、香薰,其精油中含有柠檬醛和萜类化合物,可用于趋避害虫、预防植物病害,巴西柠檬草茶具有较强的抗氧化和抗菌活性,是治疗流感的民间偏方,且巴西柠檬草生长势强,对栽培管理要求不高,水肥需求量少,适合小农户栽培。该文介绍了巴西柠檬草的形态特征、生长习性、药用价值。

关键词：巴西柠檬草精油柠檬醛预防病虫害

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中国新能源股票市场收益及其波动相关性

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复旦学报（自然科学版） 2024年第2期63卷 236-245,256页

作者：熊鸿军石峰周家贤上海电机学院商学院上海201306 南宁师范大学经济与管理学院广西南宁530299 澳门城市大学商学院中国澳门999078

本文利用2017年9月至2022年9月中国中证新能源指数、中证航空主题指数、中证医药健康100策略指数、中证农业主题指数和中证有色金属指数的交易日收盘价数据,采用3种多元GARCH模型(CCC-GARCH、DCC-GARCH和ADCC-GARCH)探索中国新能源公司... 详细信息

本文利用2017年9月至2022年9月中国中证新能源指数、中证航空主题指数、中证医药健康100策略指数、中证农业主题指数和中证有色金属指数的交易日收盘价数据,采用3种多元GARCH模型(CCC-GARCH、DCC-GARCH和ADCC-GARCH)探索中国新能源公司与航空公司、医药健康公司、农业公司以及有色金属公司之间的动态股票收益与波动相关性。条件均值方程的估计结果显示,航空公司、医药健康公司与农业公司滞后1期的股票收益显著影响新能源公司的当期股票收益。CCC-GARCH、DCC-GARCH和ADCC-GARCH模型估计的条件相关系数表明,样本期内中国新能源公司的股票回报与有色金属公司的股票回报的条件相关性最大,其次依次为航空公司、农业公司和医药健康公司。通过滚动向前一步的动态条件相关性检验也表明了估计结果的稳定性。因此,投资者可以考虑将有色金属公司的股市表现作为预测新能源公司股票回报的先行指标,以降低投资风险。

关键词：新能源股票市场多元GARCH模型 CCC-GARCH模型 DCC-GARCH模型 ADCC-GARCH模型

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Transcatheter pulmonary valve replacement in congenital heart diseases

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Pediatric Investigation 2022年第4期6卷 280-290页

作者： Adolphus Kai-Tung chau Department of Paediatrics The Chinese University of Hong Kong Medical CentreHong KongChina

Surgical repair of a variety of congenital heart diseases involves repair of the right ventricular outflow tract(RVOT)with valved or non-valved conduit to connect the right ventricle(RV)to the pulmonary artery(PA)or just patch enlargement of the native RVOT.With time,this RV-PA conduit will degenerate with deterioration of function,either causing pulmonary stenosis or pulmonary regurgitation.This RVOT dysfunction may result in RV dilation,RV dysfunction,and eventual RV failure and arrhythmias.Multiple surgical pulmonary valve replacement(PVR)is often required throughout the patient’s lifetime.Patients are subjected to increased risks with each additional cardiac operation.Transcatheter PVR(TPVR)has been developed over the past two decades as a valuable non-surgical alternative to restore the RVOT and RV function,and hence reduce patients’lifetime risks related to surgery.This article will discuss the long-term results of TPVR which are demonstrated to be comparable to surgical results and the latest development of large pulmonary valves which will allow TPVR to be performed on native or larger RVOT.

关键词： Congenital heart disease Heart valve prosthesis Pulmonary valve replacement Transcatheter

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Palladium-Catalyzed Desulfinative Cross-Coupling of Polyhalogenated Aryl Triflates with Aryl Sulfinate Salts:Inversion of Traditional Chemoselectivity

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Chinese Journal of Chemistry 2023年第8期41卷 909-914页

作者： Miao Wang On Ying Yuen chau Ming So State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityKowloonHong KongChina Henan Key Laboratory of Function-Oriented Porous Materials College of Chemistry and Chemical EngineeringLuoyang Normal UniversityLuoyangHenan471934 China The Hong Kong Polytechnic University Shenzhen Research Institute ShenzhenGuangdong518057 China

Comprehensive Summary This paper presents the first general examples of palladium-catalyzed desulfinative cross-coupling reaction of polyhalogenated aryl triflates with aryl sulfinate salts showing an inversion of the conventional reactivity order of C-Br>C-Cl>C-OTf.The catalyst system,comprising of Pd(OAc)_(2)and tBuPhSelectPhos,exhibited excellent catalytic reactivity and chemoselectivity toward this reaction.This reaction had a wide range of substrate scopes and provided a simple and efficient method for the construction of functionalized biaryl motifs.Notably,the C-H···Pd interaction from the methine hydrogen of the C2-cyclohexyl group of the indolyl phosphine ligand with the Pd center may contribute a key factor in reactivity and chemoselectivity.Assisting with density functional theory(DFT)calculations,the results revealed that the oxidative addition step in this reaction was a controlling-chemoselectivity step.

关键词： Palladium Phosphane ligands IChemoselectivity Desulfurization Polyhalogenated aryl triflates

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Liouvillian Solutions of Algebraic Ordinary Differential Equations of Order One of Genus Zero

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Journal of Systems Science & Complexity 2023年第2期36卷 884-893页

作者： NGUYEN Tri Dat NGO Lam Xuan chau Faculty of Basic Science Ho Chi Minh City University of TransportHo Chi Minh CityVietnam Department of Mathematics and Statistics Quy Nhon UniversityQuy Nhon CityVietnam

This paper considers the class of autonomous algebraic ordinary differential equations(AODEs)of order one,and studies their Liouvillian general solutions.In particular,let F(y,w)=0 be a rational algebraic curve over C.The authors give necessary and sufficient conditions for the autonomous first-order AODE F(y,y′)=0 to have a Liouvillian solution over C.Moreover,the authors show that a Liouvillian solutionαof this equation is either an algebraic function over C(x)or an algebraic function over C(exp(ax)).As a byproduct,these results lead to an algorithm for determining a Liouvillian general solution of an autonomous AODE of order one of genus zero.Rational parametrizations of rational algebraic curves play an important role on this method.

关键词： Algebraic ordinary differential equation autonomous differential equation Liouvillian solution rational algebraic curve rational parametrizations

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Organic dye removal and recycling performances of graphene oxide-coated biopolymer sponge

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Progress in Natural Science:Materials International 2022年第5期32卷 634-642页

作者： Thi Sinh Vo Tran Thi Bich chau Vo School of Mechanical Engineering Sungkyunkwan University Department of Industrial Management Can Tho University

In this study, a biopolymer sponge(PS) with a crosslinked mixture of gelatin-chitosan-poly(vinyl alcohol) was dipped into graphene oxide(GO) solution to form a composite sponge(CS, GO-coated PS) by a combination of simple dip-coating and freeze-drying procedures, as a sponge-like adsorbent in organic dye removal applications.The morphological, chemical, crystalline, mechanical and thermal characterizations of the as-obtained sponges were further investigated for the possible changes in the structure of sponge-like adsorbent after coating the GO sheets on the 3D porous structure of PS. The results showed that the CS had possessed effectively organic dye removal performances comparing to the PS. In the adsorption, the Langmuir and pseudo-second-order models corresponding to a monolayer approach and a chemical adsorption were appropriated. The maximum adsorption capacity of Rhodamine B and Congo red reached 126.8 and 135.0 mg·g-1; and 145.6 and 148.6 mg·g-1corresponding onto the PS and CS. It indicates that the maximum adsorption capacity on the CS enhanced significantly comparing to those on the PS owing to the functional GO sheets coated in the 3D porous structure of PS, which leads to supplying further functional adsorption sides on the whole 3D porous structure of CS. Notably, the sponges-like adsorbents could be regenerated and used again without a remarkable decrease of dye removal ability occurred in 9 adsorbing–desorbing cycles. Therefore, the CS prepared in this study can become a potential adsorbent for actual applications because of non-toxic materials, proper structural features, low-cost material and operation, and reliable recyclability.

关键词： Graphene oxide Biopolymer sponge Organic dye Adsorption Dye removal Recyclability

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