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Streptococcus agalactiae Anterior Cervical Space and Superior Mediastinum Abscess in a liver Transplant Recipient

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Infectious Microbes & Diseases 2019年第2期1卷 75-77页

作者： Derek l.l.Hung Man-Fai leung Jade l.l.Teng Herman Tse Susanna K.P.lau Patrick C.Y.Woo Department of Microbiology The University of Hong KongHong KongChina State Key laboratory of Emerging Infectious Diseases The University of Hong KongHong KongChina Carol Yu Centre for Infection The University of Hong KongHong KongChina Public Health laboratory Services Branch Centre for Health ProtectionHong Kong Department of HealthThe University of Hong KongHong KongChina Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases The University of Hong KongHong KongChina

Introduction Streptococcus agalactiae is most commonly associated with pregnancy-related infections,neonatal sepsis,and infections in patients with immunocompromised states,such as diabetes mellitus and malignancies.1 Although abscesses caused by *** are sometimes encountered in immunocompromised patients,*** abscess in transplant recipients is extremely *** abscesses have never been reported in liver transplant *** this article,we report a case of *** abscess in the anterior cervical space extending to the superior mediastinum in a liver transplant recipient.

关键词： Streptococcus agalactiae liver transplant abscess

Potential annual daylighting performance of a high-efficiency daylight redirecting slat system

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Building Simulation 2021年第3期14卷 495-510页

作者： luis l.Fernandes Eleanor S.lee Anothai Thanachareonkit Stephen E.Selkowitz lawrence Berkeley National laboratory BerkeleyCaliforniaUSA

While the primary role of window attachments is often to moderate glare and solar heat gains,they are also able to provide additional daylight to interior *** this purpose,a variety of daylight-redirecting window systems have been developed over the past 150 *** reflective systems(slats/light shelves)or prismatic systems that rely on total internal reflection work well under specific solar conditions,but generally sacrifice performance over a much wider range of incident solar angles and sky *** systems-typically reflective slats-are more responsive to sun angles but have not been able to achieve optimal performance for glare and daylight redirection efficiency.A previous investigation into an adjustable,reflective blind concept first conceived of in the late 1970s showed promise but was not reduced to practice due to lack of adequate simulation and analysis *** this paper,this concept is further developed and its energy and visual comfort performance evaluated for four mid-latitude,temperate climates using ray-tracing simulation *** indicate significant potential lighting energy savings when compared with conventional automated reflective blinds(2.1-4.9 kWh/(m^(2)·a),or 14%-42%,depending on climate and orientation)or,especially,manually-operated matte white Venetian blinds(1.4-7.9 kWh/(m^(2)·a),or 9%-54%,depending on climate and orientation),while maintaining acceptable or better visual comfort conditions throughout the interior space.

关键词： daylighting windows light-redirecting systems dynamic fenestration

Assessment of the crucial factors influencing the responses of ammonia and nitrous oxide emissions to controlled release nitrogen fertilizer: A meta-analysis

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Journal of Integrative Agriculture 2023年第11期22卷 3549-3559页

作者： lü Hui-dan WANG Xi-ya PAN Zhao-long ZHAO Shi-cheng State Key laboratory of Efficient Utilization of Arid and Semi-arid Arable land in Northern China/Key laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081P.R.China

Reducing ammonia(NH3) and nitrous oxide(N2O) emissions have great effects on mitigating nitrogen(N) nutrient loss and greenhouse gas emissions. Controlled release urea(CRU) can control the N release rate, which reduces reactive N loss and increases nitrogen use efficiency relative to conventional urea(CU). However, the crucial factors influencing the responses of NH3and N2O emissions to CRU relative to CU are still unclear. In this study, we evaluated the responses of NH3and N2O emissions to CRU based on collected field data with a meta-analysis. CRU reduced the NH3and N2O emissions by 32.7 and 25.0% compared with CU, respectively. According to subgroup analysis, CRU presented better mitigation of NH3and N2O emissions in soils with pH 6.5–7.5(–47.9 and –23.7%) relative to either pH7.5(–29.3 and –17.3%), and in the rice season(–34.8 and –29.1%) relative to the wheat season(–19.8 and –22.8%). The responses of NH3and N2O emissions to CRU increased from rainfed(–30.5 and –17.0%) to irrigated(–32.5 and –22.9%), and then to paddy(–34.8 and –29.1%) systems. In addition, the response of N2O emission mitigation increased with increases in soil total nitrogen(TN);however, soil TN did not significantly affect the response of NH3volatilization. The reduction in NH3emission was greater in sandy-textured soil(–57.7%) relative to loam-textured(–32.9%) and clay-textured(–32.3%) soils, whereas soil texture did not affect N2O emission. Overall, CRU was a good option for reducing the NH3and N2O emissions relative to CU in agricultural production. This analysis improves our understanding of the crucial environmental and management factors influencing the mitigation of NH3and N2O emissions under CRU application, and these site-specific factors should be considered when applying CRU to reduce reactive N loss and increase NUE.

关键词： controlled release urea NH volatilization N O emission environmental factor management practice

Integral Barrier lyapunov function-based adaptive control for switched nonlinear systems

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Science China(Information Sciences) 2020年第3期63卷 212-225页

作者： lei lIU Yan-Jun lIU Aiqing CHEN Shaocheng TONG C.l.Philip CHEN College of Science Liaoning University of Technology Computer Science and Engineering South China University of Technology Navigation College Dalian Maritime University

This paper presents an adaptive control method for a class of uncertain strict-feedback switched nonlinear systems. First, we consider the constraint characteristics in the switched nonlinear systems to ensure that all states in switched systems do not violate the constraint ranges. Second, we design the controller based on the backstepping technique, while integral Barrier lyapunov functions(i BlFs) are adopted to solve the full state constraint problems in each step in order to realize the direct constraints on state ***, we introduce the lyapunov stability theory to demonstrate that the adaptive controller achieves the desired control goals. Finally, we perform a numerical simulation, which further verifies the significance and feasibility of the presented control scheme.

关键词： adaptive control switched nonlinear systems integral Barrier lyapunov functions backstepping technique full state constraints

Discovery of prenylated indole alkaloid and natural xanthone from cold-seep sediment derived fungus Talaromyces funiculosus SD-523

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Journal of Oceanology and limnology 2023年第3期41卷 1152-1158页

作者： Yanan WANG Xiaoming lI Fengyi lÜ Suiqun YANG linghong MENG Bingui WANG CAS and Shandong Province Key laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China College of Marine Science University of Chinese Academy of SciencesBeijing 100049China laboratory of Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

A new prenylated indole alkaloid 11,17-epi-mangrovamide A(1),a new natural occurring product,1,7-dihydroxy-6-methyl-8-hydroxymethyl-xanthone(2),two known alkaloids,mangrovamide A(3)and mangrovamide G(4),and four known polyketide derivatives(5–8)were isolated and identified from the cold-seep sediment derived fungal strain Talaromyces funiculosus *** structures were elucidated by combination of nuclear magnetic resonance(NMR),high resolution electrospray ionization mass spectroscopy(HRESIMS),quantum chemical electronic circular dichroism(ECD),and DP4+probability analysis as well as by comparison of the data with literature *** isolated compounds were tested for antibacterial activities.

关键词： Talaromyces funiculosus cold seep prenylated indole alkaloid antimicrobial activity

localized space-tim e method of fundamental solutions for three-dimensional transient diffusion problem

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Acta Mechanica Sinica 2020年第5期36卷 1051-1057,I0002页

作者： l.Qiu J.lin Q.-H.Qin W.Chen International Center for Simulation Software in Engineering and Sciences College of Mechanics and MaterialsHohai UniversityNanjing 210098China College of Engineering and Computer Science Australian National UniversityCanberraACT 2601Australia State Key laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures Shijiazhuang Tiedao UniversityShijiazhuang 050043China State Key laboratory of Acoustic Institute of AcousticsChinese Academy of SciencesBeijing 100190China

A localized space-time method of fundamental solutions(lSTMFS)is extended for solving three-dimensional transient diffusion problems in this *** interval segmentation in temporal direction is developed for the accurate simulation of long-time-dependent diffusion *** the lSTMFS,the whole space-time domain with nodes arranged i divided into a series of overlapping subdomains with a simple *** each subdomain,the conventional method of fundamental solutions is utilized and the coefficients associated with the considered domain can be explicitly *** calculating a combined sparse matrix system,the value at any node inside the space-time domain can be *** experi-ments demonstrate that high accuracy and efficiency can be simultaneously achieved via the lSTMFS,even for the problems defined on a long-time and quite complex computational domain.

关键词： localized spacetime method of fundamental solutions Meshless method long-time evolution Transient diffusion

loss of mismatch repair signaling impairs the WNT–bone morphogenetic protein crosstalk and the colonic homeostasis

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Journal of Molecular Cell Biology 2020年第6期12卷 410-423页

作者： Katrine Nørgaard Carolin Müller Nadja Christensen María l.Chiloeches Cesilie l.Madsen Sabine S.Nielsen Tine E.Thingholm Antoaneta Belcheva Department of Biochemistry and Molecular Biology University of Southern DenmarkCampusvej 555230 Odense MDenmark Department of Molecular Medicine University of Southern DenmarkJ.B.Winsløws Vej 255230 Odense MDenmark

The fine balance between proliferation,differentiation,and apoptosis in the colonic epithelium is tightly controlled by the interplay between WNT,Notch,and bone morphogenetic protein(BMP)*** these complex networks coordinate the colonic homeostasis,especially if cancer predisposing mutations such as mutations in the DNA mismatch repair(MMR)are present,is *** of the MMR system has long been linked to colorectal cancer;however,little is known about its role in the regulation of the colonic *** has been shown that loss of MMR promotes the proliferation of colon epithelial cells that renders them highly susceptible to *** mechanism through which MMR mediates this effect,yet,remains to be *** an MMR-deficient mouse model,we show that increased methylation of Dickkopf1 impacts its expression,and consequently,the ability to negatively regulate WNT *** a result,excessive levels of activeβ-catenin promote strong crypt progenitor-like phenotype and abnormal *** these settings,the development and function of the goblet cells are ***-deficient mice have fewer goblet cells with enlarged mucin-loaded *** further show that MMR inactivation impacts the WNT–BMP signaling crosstalk.

关键词： MMR colonic epithelium WNT BMP crypt homeostasis

Effect of organophilic group of coupling agent on the electrical performance of Boron Nitride/meta-aramid composite paper

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作者： l.·琼斯(l. Jones)

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High Voltage 2023年第4期8卷 760-771页

作者： Haoou Ruan Qing Xie Jingxuan Song Shenghui Wang Xiaobin Chang Yuqin Xu Fangcheng lü State Key laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBeijingChina Ganzhou longpunt Material Technology Co. LtdGanzhouChina

Organophilic groups of coupling agents can be the key factor for the electrical performance of Boron Nitride(BN)/meta-aramid composite *** this article,four types of triethoxy-silane coupling agents with different organophilic groups,including mercaptopropyl(MP),glycidylether-propyl(GP),amino-propyl(AP)and trideca-fluoro-octyl(TFO)were *** structural and electrical properties of modified papers were compared,and the molecular simulation was conducted to reveal the interface interaction of modified BN and *** results show that AP,GP and MP follow the same mechanism,improving the electrical performance by modifying the interface stability and paper structure,and the ranks of improving effects are AP,MP and ***,TFO mainly relies on the fluorine components to implement the electrical reinforcement,which compensates for the shortcoming in the paper *** choosing TFO and filler content of 15 wt%,the optimal breakdown strength of the paper can be increased to 28.17 kV/mm,1.8 times that of the paper doped with the hydroxylated BN.

关键词： composite electrical coupling