检索结果-南通市图书馆

Material Engineering in Gut Microbiome and Human Health

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research 2022年第3期2022卷 145-176页

作者： Letao Yang Lin Y.Hung Yuefei Zhu Suwan Ding Kara G.Margolis kam W.Leong Department of Biomedical Engineering Columbia UniversityNew YorkNYUSA Department of Pediatrics Columbia UniversityNew YorkNew YorkUSA Department of Systems Biology Columbia UniversityNew YorkNYUSA

Tremendous progress has been made in the past decade regarding our understanding of the gut microbiome’s role in human ***,however,a comprehensive and focused review marrying the two distinct fields of gut microbiome and material research is *** bridge the gap,the current paper discusses critical aspects of the rapidly emerging research topic of“material engineering in the gut microbiome and human health.”By engaging scientists with diverse backgrounds in biomaterials,gut-microbiome axis,neuroscience,synthetic biology,tissue engineering,and biosensing in a dialogue,our goal is to accelerate the development of research tools for gut microbiome research and the development of therapeutics that target the gut *** this purpose,state-of-the-art knowledge is presented here on biomaterial technologies that facilitate the study,analysis,and manipulation of the gut microbiome,including intestinal organoids,gut-on-chip models,hydrogels for spatial mapping of gut microbiome compositions,microbiome biosensors,and oral bacteria delivery *** addition,a discussion is provided regarding the microbiome-gut-brain axis and the critical roles that biomaterials can play to investigate and regulate the ***,perspectives are provided regarding future directions on how to develop and use novel biomaterials in gut microbiome research,as well as essential regulatory rules in clinical *** this way,we hope to inspire research into future biomaterial technologies to advance gut microbiome research and gut microbiome-based theragnostics.

关键词： biomaterials directions biome

A diagnosis with a twist:Ultrasonographic sensitivity and predictors of pediatric ovarian torsion within a large pediatric hospital

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2022年第3期13卷 229-231页

作者： Mark K.Hewitt Jesse E.Marshall-Sheppard April J.kam Department of Medicine Division of Emergency MedicineMcMaster UniversityHamilton L8S 4L8Canada Department of Family Medicine University of TorontoToronto M5S1A1Canada Department of Pediatrics Division of Pediatric Emergency MedicineMcMaster UniversityHamilton 8S 4L8Canada

The diagnosis of ovarian torsion(OT)in girls is challenging compared to that of testicular torsion in boys for many reasons,but it behooves the medical community to continue to strive to better identify this uncommon but clinically important pathology^([1]) OT occurs when the ovary and associated structures rotate around its vascular pedicle,leading to eventually irreversible necrosis.^([2,3])Studies attempting to identify clinical features for early diagnosis have not reached a consensus on the best clinical predictors of this condition,making radiographic imaging of the ovaries even more crucial.^([4,5])

关键词： diagnosis pediatric torsion

Dish-like higher-ordered palladium nanostructures through metal ion-ligand complexation

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

Nano Research 2018年第6期11卷 3442-3452页

作者： Xi Yin Miao Shi kam Sang Kwok Haidong Zhao Danielle L. Gray Jeffery A. Bertke Hong Yang Department of Chemical and Biomolecular Engineering University of Illinois at Urbana-Champaign MC-712 206 Roger Adams I Laboratory 600 S. Matthews Avenue Urbana Illinois 61801 USA George L. Clark X-ray Facility University of Illinois at Urbana-Champaign 505 S. Matthews Avenue Urbana Illinois 61801 USA

Unlike nucleation and growth in simple precipitation processes, described by the classical theory, metal nanoparticles formed in organic solvents with capping ligands often involve chemical reactions that occur homogeneously in solution or heterogeneously on the metal surface. These chemical reactions lead to the formation of intermediates that occurs in the process of deposition onto nuclei during the reduction. The understanding of these chemical reactions would enable a better design of functional metal nanocrystals, even those with unconventional hierarchical morphologies. In this study, we report the formation of dish-shaped nanostructures of palladium （Pd） obtained from palladium acetylacetonate （Pd（acac）2） in the presence of oleylamine and oleic acid. The process was correlated with the kinetic-controlled evolution of two-dimensional （2D） Pd nanosheets. The formation of Pd-ligand complexes was revealed using single-crystal X-ray diffraction, ultraviolet-visible spectroscopy, and mass spectrometry. These intermediates affected the formation kinetics of the 2D nanostructures and higher-ordered morphology of the nanodishes.

关键词： palladium nanoplates two-dimensional materials. complexation nucleation growth

A monolithic InP/SOI platform for integrated photonics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2021年第11期10卷 2143-2152页

作者： Zhao Yan Yu Han Liying Lin Ying Xue Chao Ma Wai Kit Ng kam Sing Wong Kei May Lau Department of Electronic and Computer Engineering Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Department of Physics and William Mong Institute of Nano Science and Technology Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina

The deployment of photonic integrated circuits(PICs)necessitates an integration platform that is scalable,high-throughput,cost-effective,and *** we present a monolithic InP on SOI platform to synergize the advantages of two mainstream photonic integration platforms:Si photonics and InP *** monolithic InP/SOI platform is realized through the selective growth of both InP sub-micron wires and large dimension InP membranes on industry-standard(001)-oriented silicon-on-insulator(SOI)*** epitaxial InP is in-plane,dislocation-free,site-controlled,intimately positioned with the Si device layer,and placed right on top of the buried oxide layer to form“InP-on-insulator”.These attributes allow for the realization of various photonic functionalities using the epitaxial InP,with efficient light interfacing between the III-V devices and the Si-based *** exemplify the potential of this InP/SOI platform for integrated photonics through the demonstration of lasers with different cavity designs including subwavelength wires,square cavities,and *** results here mark a critical step forward towards fully-integrated Si-based PICs.

关键词： SOI monolithic integration

Robust,Breathable and Flexible Smart Textiles as Multifunctional Sensor and Heater for Personal Health Management

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advanced Fiber Materials 2023年第1期5卷 282-295页

作者： Dewen Xu Zhaofeng Ouyang Yanjuan Dong Hou‑Yong Yu Shuang Zheng Shenghong Li kam Chiu Tam Key Laboratory of Intelligent Textile and Flexible Interconnection of Zhejiang Province Zhejiang Sci-Tech UniversityXiasha Higher Education Park Avenue 2 No.928Hangzhou 310018China Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China Department of Chemical Engineering Waterloo Institute for NanotechnologyUniversity of Waterloo200 University Avenue WestWaterlooON N2L 3G1Canada

Smart textiles with high sensitivity and rapid response for various external stimuli have gained tremendous attentions in human healthcare monitoring,personal heat management,and wearable ***,the current smart textiles only acquire desired signal passively,regularly lacking subsequent on-demand therapy ***,a robust,breathable,and flexible smart textiles as multi-function sensor and wearable heater for human health monitoring and gentle thermotherapy in real time is *** composite fiber as strain sensor(CFY@PU)was fabricated via warping carbon fiber yarns(CFY)onto polyurethane fibers(PU),which endowed composite fiber with high conductivity,excellent sensitivity(GF=76.2),and fantastic dynamic durability(7500 cycles)in strain *** addition,CFY@PU can detect various degrees of human movements such as elbow bending,swallowing and pulse,which can provide effective information for disease *** surprisingly,weaving CFY@PU into a fabric can assemble highly sensitive pressure sensor for remote communication and information *** CFY onto Kevlar would obtain temperature-sensitive composite fiber(CFY@Kevlar)as temperature sensor and wearable heater for on-demand thermotherapy,which provided unique opportunities in designing smart textiles with ultrahigh sensitivity,rapid response,and great dynamic durability.

关键词： Smart textiles Carbon fiber yarns Multifunctional sensor Personal heat management Wearable electronics

Angry Chinamen:Finding Masculinity in Australia and China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparative Literature:East & West 2008年第1期 34-49页

作者： kam Louie University of Hong Kong

本文用"文武"观念建构中国"雄性",用以检讨过去二十年中国人在西方国家,以及回到自己的家园时,如何看待他们自己。由于"海归"的情况和身份变化非常复杂,本文集中讨论澳大利亚的情况,用中国诗人作家欧阳翌为例,论述海外华裔作家环境的变... 详细信息

本文用"文武"观念建构中国"雄性",用以检讨过去二十年中国人在西方国家,以及回到自己的家园时,如何看待他们自己。由于"海归"的情况和身份变化非常复杂,本文集中讨论澳大利亚的情况,用中国诗人作家欧阳翌为例,论述海外华裔作家环境的变化。本文认为海外华裔的社会地位变化很大,但是由于中国文学传统的延续,如李白和杜甫的诗歌影响力,海外华裔作家中的"文"的理想依然存在。

关键词：海外华裔观念建构二十年作家澳大利亚中国诗西方国家中国文学传统社会地位

Improved functionality of cinnamon oil emulsion-based gelatin films as potential edible packaging film for wax apple

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

Food Bioscience 2022年第3期47卷 572-582页

作者： Keisheni Ganeson M.R.Razifah A.Mubarak Amin kam Sevakumaran Vigneswari Seeram Ramakrishna Faculty of Science and Marine Environment Universiti Malaysia Terengganu21030Kuala NerusTerengganuMalaysia Faculty of Fisheries and Food Science University Malaysia Terengganu21030Kuala NerusTerengganuMalaysia Center for Nanotechnology and Sustainability National University of Singapore119260 Singapore

This study discusses on the tailoring of cinnamon oil emulsion-based gelatin edible films that can encapsulate,protect and release bioactive compounds in food packaging *** effect of this cinnamon oil film for shelf-life extension and storage stabilities of wax apples(Syzygium samarangense L.)was evaluated over 12-day storage at refrigerated temperature(5℃).Emulsion of cinnamon oil and surfactant at different ratios of 70:30(ME1),60:40(ME2)and 50:50(ME3)was incorporated into the films and the interactions between the emulsion and polymeric structure in films were analysed through physical,morphological and functional *** cinnamon oil emulsion-based gelatin films with a ratio of 70:30 exhibited significant increase in mechanical,water barrier,antioxidant activity and thermal *** increase in antioxidant activity of cinnamon oil films revealed that encapsulation of cinnamon oil in gelatin matrix better retains the bioactive compounds for food packaging *** oil emulsion-based films significantly lowered the weight loss of wax apples(12.43%)compared to the control(unwrapped)wax apples(26.40%).Interestingly,this research indicates that encapsulation of bioactive compounds is governed by the ratio of oil to surfactant mixture in *** was proved that the film microemulsion with the 70:30 ratio of oil to surfactant(FME 70)have better overall performances as compared to the control(gelatin films)due to hydrogen and hydrophobic interactions with protein network of *** conclusion,cinnamon oil emulsion-based films could enhance and modify the functionality of protein-based films creating a biodegradable,sustainable and cost-effective food packaging materials.

关键词： Essential oil Emulsion Bioactive compounds Active films Packaging material

Phase Retrieval via Sensor Network Localization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of the Operations Research Society of China 2019年第1期7卷 127-146页

作者： Sherry Xue-Ying Ni Man-Chung Yue kam-Fung Cheung Anthony Man-Cho So Department of Systems Engineering and Engineering Management The Chinese University of Hong KongHong KongChina Imperial College Business School Imperial College LondonLondonUK Institute of Transport and Logistics Studies The University of SydneySydneyAustralia

The problem of phase retrieval is revisited and studied from a fresh *** particular,we establish a connection between the phase retrieval problem and the sensor network localization problem,which allows us to utilize the vast theoretical and algorithmic literature on the latter to tackle the *** this connection,we develop a two-stage algorithm for phase retrieval that can provably recover the desired *** both sparse and dense settings,our proposed algorithm improves upon prior approaches simultaneously in the number of required measurements for recovery and the reconstruction *** present numerical results to corroborate our theory and to demonstrate the efficiency of the proposed *** a side result,we propose a new form of phase retrieval problem and connect it to the complex rigidity theory proposed by Gortler and Thurston(in:Connelly R,Ivic Weiss A,Whiteley W(eds)Rigidity and symmetry,Springer,New York,pp 131–154,2014).

关键词： Phase retrieval Distance geometry Rigidity theory Sensor network localization

Effect of Money Supply on Real Output and Price in China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China & World Economy 2009年第2期17卷 35-44页

作者： Chih-Hsiang Chang kam C.Chan Hung-Gay Fung College of Management National University of Kaohsiung Gordon Ford College of Business Western Kentucky University College of Business Administration and Center for International Studies University of Missouri-St.Louis

Over the past 30 years, China has achieved remarkable long-term economic growth. Using quarterly data, we study the effects of money supply on real output and inflation in China between 1993 and 2008. To this end, we use money supply shocks afler filtering out the expected component of the money supply. Our findings provide evidence supporting the asymmetric effect of positive and negative money supply shocks on real output and inflation in China. That is, real GDP growth in China responds to negative money supply shocks but not positive money supply shocks. In addition, inflation responds to positive money supply shocks but not negative money supply shocks. We conclude that the People＇s Bank of China＇ s policy of steady monetary growth appears to be appropriate. Our study offers important policy implications for China.

关键词： inflation money supply real output