检索结果-南通市图书馆

Clinical characteristics and surgical treatment of schwannomas of the esophagus and stomach: A case series and systematic review

引用

World Journal of Gastrointestinal Oncology 2019年第9期11卷 750-760页

作者： Jesús Morales-Maza Francisco Ulises Pastor-Sifuentes Germán E Sánchez-Morales Emilio Sanchez-Garcia Ramos Oscar Santes uriel clemente-gutiérrez Adriana Simoneta Pimienta-Ibarra Heriberto Medina-Franco Department of Surgery Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán

BACKGROUND Gastrointestinal schwannomas are slow-growing benign mesenchymal neoplasms that originate from Schwann cells of the nerve sheath of Auerbach′s plexus or less frequently from Meissner′s *** main differential diagnosis of gastric schwannomas are the gastrointestinal stromal tumors(GISTs),which are classified by their *** treatment of choice for gastric schwannomas is surgery where laparoscopy plays an important *** resection,subtotal or total gastrectomy can be *** its counterpart,esophageal schwannomas are benign tumors of the esophagus that are very uncommon since they comprise less than 2%of all esophageal *** main differential diagnosis is the leiomyoma which corresponds to the most common benign esophageal tumor,followed by *** treatment consists on tumoral enucleation or *** To review the available literature about gastrointestinal schwannomas;especially lesions from de stomach and esophagus,including diagnosis,treatment,and follow up,as well as,reporting our institutional *** A systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyzes *** following databases were used for reviewing process:Pub Med,Ovid,MEDLINE,and *** English language manuscripts were *** gastrointestinal schwannomas specifically located in the esophagus and stomach were *** that did not report long-term follow-up were *** Gastric localization showed a higher prevalence in both,the literature review and our institution:94.95%(n=317)and 83%(n=5)*** a follow-up with disease-free survival greater than 36 mo in most cases:62.01%(n=80)vs66.66%(n=4).In both groups,the median size was>4.1 *** treatment is curative in most cases CONCLUSION Schwannoma must be taken into account in the differential diagnosis of gastrointestinal mesenchymal *** has a good prognosis,and most are benig

关键词： Schwannoma Esophagus Stomach Surgery Systematic review

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

Demonstration of an integrated nanophotonic chip-scale alkali vapor magnetometer using inverse design

引用

Light(Science & Applications) 2021年第4期10卷 562-569页

作者： Yoel Sebbag Eliran Talker Alex Naiman Yefim Barash uriel Levy Department of Applied Physics The Center for Nanoscience and NanotechnologyThe Hebrew University of JerusalemJerusalem 91904Israel

Recently,there has been growing interest in the miniaturization and integration of atomic-based quantum *** addition to the obvious advantages brought by such integration in facilitating mass production,reducing the footprint,and reducing the cost,the flexibility offered by on-chip integration enables the development of new concepts and *** particular,recent advanced techniques based on computer-assisted optimization algorithms enable the development of newly engineered photonic structures with unconventional *** this concept further,we hereby demonstrate the design,fabrication,and experimental characterization of an integrated nanophotonic-atomic chip magnetometer based on alkali vapor with a micrometer-scale spatial resolution and a magnetic sensitivity of 700 pT/*** presented platform paves the way for future applications using integrated photonic-atomic chips,including high-spatial-resolution magnetometry,near-field vectorial imaging,magnetically induced switching,and optical isolation.

关键词： magnetometer alkali enable

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

Payment System Innovation in China:How Innovative Payment Can Motivate Customers

Payment System Innovation in China:How Innovative Payment Ca...

引用

作者： ETTIEN FRANCK uriel 上海交通大学

学位级别：硕士

The innovation of the technology creates an opportunity to increase business transaction and also created a new way to perform business through different payment methods essentially *** research topic aims generally to analyze the influence of the e-payment innovation in the consumer’s consumption *** other word,we want to know if the innovative payment system increase or not the consumer consumptions especially in China where the market size is huge and highly *** decide to analyze the current situation in the Chinese retail system market by firstly,identify all the retail payment system providers and his functioning in *** identified all the services provided by the third-party payment companies and the payment instrument available in the Chinese market.A deep and extensive review of the previous researches in this field and all the articles we found gave us a strong base and guide us in this *** analyzed the characteristics of the different e-payments program and we use different literature review like the Theory of Acceptance model and the Theory of reasoned action to analyze deeply the different factors that can influence generally consumer to use an E-payment *** TAM model helped us to understand the importance of the usefulness and the ease of use of a program when a customer decides to use an EPS while the TRA models helped us to understand that importance of the consumer perception through the risk,the security and convenience,the flexibility,his behavior and all the external factors like the gender,the educational background when a consumer decide to use a specific e-payment *** drawn a survey questionnaire related to both theories in order to verify our *** results of this analysis show us that the decision of using a specific program to purchase is influencing by different factor involving directly the ease of use of the program and the perceived usefulness and indirectly the factor involving

关键词：

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

MoSe_(2)/WS_(2) heterojunction photodiode integrated with a silicon nitride waveguide for near infrared light detection with high responsivity

引用

Light(Science & Applications) 2023年第3期12卷 456-464页

作者： Rivka Gherabli S.R.K.C.Indukuri Roy Zektzer Christian Frydendahl uriel Levy Department of Applied Physics The Faculty of ScienceThe Center for Nanoscience and NanotechnologyThe Hebrew University of JerusalemJerusalem91904Israel

We demonstrate experimentally the realization and the characterization of a chip-scale integrated photodetector for the near-infrared spectral regime based on the integration of a MoSe_(2)/WS_(2) heterojunction on top of a silicon nitride *** configuration achieves high responsivity of~1 A W−1 at the wavelength of 780 nm(indicating an internal gain mechanism)while suppressing the dark current to the level of~50 pA,much lower as compared to a reference sample of just MoSe_(2) without WS_(2).We have measured the power spectral density of the dark current to be as low as~1×10^(−12) A Hz−0.5,from which we extract the noise equivalent power(NEP)to be~1×10^(−12) W Hz^(−0.5).To demonstrate the usefulness of the device,we use it for the characterization of the transfer function of a microring resonator that is integrated on the same chip as the *** ability to integrate local photodetectors on a chip and to operate such devices with high performance at the near-infrared regime is expected to play a critical role in future integrated devices in the field of optical communications,quantum photonics,biochemical sensing,and more.

关键词： heterojunction waveguide resonator

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 fly factor phenomenon is mediated by interkingdom signaling between bacterial symbionts and their blow fly hosts

引用

Insect Science 2020年第2期27卷 256-265页

作者： Yonathan uriel Regine Gries Loma Tu Cassandra Carroll Huimin Zhai Margo Moore Gerhard Gries Department of Biological Sciences Simon Fraser UniversityBurnabyBritish ColumbiaCanada

We tested the recent hypothesis that the"fly factor"phenomenon(food cur-rently or previously fed on by flies attracts more flies than the same type of food kept inccessible to flies)is mediated by bacterial symbionts deposited with feees or regur-gitated by feeding *** allowed laboratory-reared black blow flies,Phormia regina(Meigen),to feed and de fecate on bacterial Luria-Bertani medium solidified with agar,and isolated seven morphologically distinct bacterial *** identified these us-ing matrix-assisted laser desorption/ionization mass spectrometry and sequencing of the 165 rRNA *** two-choice laboratory experiments,traps baited with cultures of Pro-teus mirabilis Hauser,Morganella morganii *** Jensen,or Serratia marcescens Bizio,captured significantly more flies than corresponding control jars baited with tryptic soy agar only.A mixture of seven bacterial strains as a trap bait was more attractive to flies than a single bacterial isolate(***).In a field experiment,traps baited with agar cultures of P:mirabilis and M.m siboni in combination captured significantly more flies than lraps baited with either bacterial isolate alone or the agar *** evident by gas chromatography-mass spectrometry,the odor profiles of bacterial isolates differ,which may explain the additive effect of bacteria to the attractiveness of bacterial trap ***"generalist bacteria,"P mirabilis and *** growing on animal protein(beef liver)or plant protein(tofu)are similarly effective in attracting ***-derived airborne semiochemicals appear to mediate foraging by flies and to inform their feeding and oviposition decisions.

关键词： blow fies enteric bacteria fly foctor interk ingdom commumicaion micro-bial symbionts semioche mical atractants

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

A study of the influence of genetic variance and sex on the density and thickness of the calvarial bone in collaborative cross mice

引用

Animal Models and Experimental Medicine 2023年第4期6卷 355-361页

作者： uriel Kaspersky Roei Levy Aysar Nashef Fuad A.Iraqi Yankel Gabet Department of Anatomy and Anthropology Tel Aviv UniversityTel AvivIsrael Department of Clinical Microbiology and Immunology Sackler Faculty of MedicineTel Aviv UniversityTel Aviv69978Israel Department of Oral and Maxillofacial Surgery Baruch Padeh medical centerPoriyaIsrael

Background:Bone microarchitecture is affected by multiple genes,each having a small effect on the external *** is thus challenging to characterize the genes and their specific effect on bone thickness and *** purpose of this study was to assess the heritability and the genetic variation effect,as well as the sex effect on the calvarial bone thickness(***)and calvarial porosity(%PoV)using the Collaborative Cross(CC)mouse ***:In the study we examined the parietal bones of 56 mice from 9 lines of CC *** parameters were evaluated using microcomputed tomography(μCT)and included *** and%*** then evaluated heritability,genetic versus environmental variance and the sex effect for these ***:Our morphometric analysis showed that *** and%PoV are both significantly different among the CC lines with a broad sense heritability of 0.78 and 0.90,*** sex effect within the lines was significant in line IL111 and showed higher values of *** and%PoV in females compared to *** line IL19 there was a borderline sex effect in *** in which males showed higher values than ***:These results stress the complexity of sex and genotype interactions controlling *** and%PoV,as the skeletal sexual dimorphism was dependent on the genetic *** study also shows that the CC population is a powerful tool for establishing the genetic effect on these traits.

关键词： calvarial porosity(%PoV) calvarial thickness(Ca.Th) collaborative cross mouse population diploe heritability sex effect

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

Two-stage Transient-stability-constrained Optimal Power Flow for Preventive Control of Rotor Angle Stability and Voltage Sags

引用

Journal of Modern Power Systems and Clean Energy 2024年第5期12卷 1357-1369页

作者： Jorge uriel Sevilla-Romero Alejandro Pizano-Martínez Claudio Rubén Fuerte-Esquivel Reymundo Ramírez-Betancour the Faculty of Electrical Engineering Universidad Michoacana de San Nicolás de Hidalgo58030 MoreliaMéxico the Department of Electrical Engineering Universidad of Guanajuato36787 SalamancaMéxico the Department of Electrical and Electronic Engineering Universidad Juárez Autónoma de Tabasco86040 VillahermosaMéxico

In practice,an equilibrium point of the power system is considered transiently secure if it can withstand a specified contingency by maintaining transient evolution of rotor angles and voltage magnitudes within set bounds.A novel sequential approach is proposed to obtain transiently stable equilibrium points through the preventive control of transient stability and transient voltage sag(TVS)problems caused by a severe *** proposed approach conducts a sequence of non-heuristic optimal active power re-dispatch of the generators to steer the system toward a transiently secure operating point by sequentially solving the transient-stability-constrained optimal power flow(TSC-OPF)*** the proposed approach,there are two sequential projection stages,with the first stage ensuring the rotor angle stability and the second stage removing TVS in voltage *** both projection stages,the projection operation corresponds to the TSC-OPF,with its formulation directly derived by adding only two steady-state variable-based transient constraints to the conventional OPF *** effectiveness of this approach is numerically demonstrated in terms of its accuracy and computational performance by using the Western System Coordinated Council(WSCC)3-machine 9-bus system and an equivalent model of the Mexican 46-machine 190-bus system.

关键词： Dynamic security assessment transient stability transient voltage sag(TVS) optimal power flow(OPF)

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

Flexible breeding performance under unstable climatic conditions in a tropical passerine in Southwest China

引用

Zoological Research 2021年第2期42卷 221-226页

作者： Chen-Yang Liu uriel Gélin Ru-Chuan He Huan Li Rui-Chang Quan Center for Integrative Conservation Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesXishuangbannaYunnan 666303China University of Chinese Academy of Sciences Beijing 100049China

DEAR EDITOR,Parents may adjust their breeding time to optimize reproductive output and reduce reproductive costs associated with unpredictable climatic conditions,especially in the context of global *** breeding performance of tropical bird species in response to local climate change is relatively understudied compared with that of temperate bird species.

关键词： breeding bird climatic

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

Habitat use in eight populations of Sceloporus grammicus(Squamata:Phrynosomatidae)from the Mexican Plateau

引用

Integrative Zoology 2017年第3期12卷 198-210页

作者： Adrian LEYTE-MANRIQUE uriel HERNÁNDEZ-SALINAS Aurelio RAMÍREZ-BAUTISTA Vicente MATA-SILVA Jonathon C.MARSHALL Laboratorio de Biología Instituto Tecnológico Superior de SalvatierraSalvatierraGuanajuatoMexico Instituto Politécnico Nacional CIIDIR Unidad DurangoSigma 119Fraccionamiento 20 de Noviembre IIDurangoDurango 34220México Laboratorio de Ecología de Poblaciones Centro de Investigaciones BiológicasUniversidad Autónoma del Estado de HidalgoKm 4.5 carretera Pachuca-Tulancingo42184Mineral de la ReformaHidalgoMexico Department of Biological Sciences The University of Texas at El PasoEl PasoTexasUSA Department of Zoology Weber State University1415 Edvalson StreetOgdenUtahUSA

Studies on habitat use have often helped explain observed variation in morphology,behavior and reproductive characteristics among populations within a single *** we analyze morphological and ecological characteristics of individuals from the Sceloporus grammicus species complex from 7 different localities(CER,El Cerezo;PAC,Pachuca;HUI,Huichapan;EZA,Emiliano Zapata;SMR,San Miguel Regla;LMJ,La Mojonera;and LMZ,La Manzana)in the state of Hidalgo,and one locality(Cahuacán)in the State of Mexico.A canonical correspondence analysis(CCA)showed that females from PAC,EZA,LMZ,HUI,SMR and CAH populations use similar microhabitats characterized mostly by bare soil,in females from LMJ and CER use microhabitats characterized primarily by vegetation and *** were observed using 12 different types of *** regard to perch height use,the CCA showed that females from PAC,LMJ,LMZ,SMR,CER and CAH populations were correlated with height to nearest perch(HNP),in the rest of the females were not related to any perch use *** contrast,the CCA showed that males from PAC,LMJ and CAH were characterized by microhabitats with higher vegetal coverage,while males from LMZ and CER used microhabitats composed of bare soil,but males from HUI and SMR populations used microhabitats composed chiefly of bare soil and *** respect to perch height use,the CCA showed that males from PAC,LMJ,EZA and LMZ were correlated with distance to the nearest perch,but the rest of the males were not correlated with any perch use *** were observed in 9 different perch *** males were larger than the females in all morphological variables ***,in both sexes the snout-vent length is positively correlated with all morphological variables,and although both the slope and ordinate of the origin of all morphological variables were larger in males than females,the analysis of covariance indicated that there is no increase in the morphological variables with inc

关键词： canonical correspondence analyses habitat use morphology populations Sceloporus grammicus

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

Nonlinear Coefficient Determination of Au/Pd Bimetallic Nanoparticles Using Z-Scan

引用

Advances in Nanoparticles 2013年第3期2卷 223-228页

作者： José Luis Jiménez Pérez Rubén gutiérrez-Fuentes José Francisco Sánchez Ramírez Omar uriel García Vidal Daniel Erick Téllez-Sánchez Zormy Nacary Correa Pacheco Alfredo Cruz Orea Jesús Antonio Fuentes García Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada México D.F. México Departamento de Física Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional México D.F. México Unidad Profesional Interdisciplinaria en Ingeniería y Tecnologías Avanzadas del IPN México D.F. México

In this paper we present the nonlinear optical characterization of Au/Pd nanoparticles in order to obtain the nonlinear refractive indices using the Z-scan technique. The experiments were performed using a 514 nm laser beam Ar+, with 14 Hz of modulation frequency, as excitation source. By using a lens the excitation beam was focused to a small spot and the sample was moved across the focal region along the z-axis by a motorized translation stage. Seven samples with different concentration ratio of Au/Pd nanoparticles were prepared by simultaneous reduction of gold and palladium ions in presence of poly (N-vinyl-2-pirrolidone) (PVP) using ethanol as a reducing agent. In this work, we report the application of the Z-scan technique, to generate optical transmission of laser light as a function of the z position for solutions containing bimetallic nanoparticles of Au (core)/Pd (shell) with average sizes ranging from 3 to 5 nm. The magnitude of the obtained nonlinear refractive index was in the order of 10?8 cm2/W. Our results show that the nonlinear refractive index has a nonlinear behavior when the (Au/Pd) ratio was increased.

关键词： Nanofluids Nanoparticles Nonlinear Refractive Indices Z-Scan

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：