检索结果-南通市图书馆

Subterranean termites （Isoptera： Rhinotermitidae）： Exploitation of equivalent food resources with different forms of placement

引用

Insect Science 2012年第3期19卷 412-418页

作者： Juliana toledo Lima Ana Maria Costa-Leonardo Departamento de Biologia Instituto de BiocienciasUNESP-Univ Estadual PaulistaRio Claro-SPBrazil

Coptotermes gestroi and Heterotermes tenuis have been described as important urban pests in Brazil. The establishment of control technologies using baits that consider the social behavior of termites requires a better knowledge of their foraging behavior. Thus, this study analyzed the feeding behavior of these species with three different forms of food placement： food on the surface of a substrate and food either partially or completely buried in the substrate. Experimental arenas were composed of a central chamber connected to three food chambers. Each central chamber contained 550 foragers of C. gestroi or 517 foragers of 11. tenuis. Blocks of Pinus elliottii were placed in the different food chambers. After 28 days, the consumption of each wood block and the percentage of foraging individuals recruited for food chambers were verified in relation to the total survival rate obtained for each one of the 20 replicates. Results showed that completely buried food was most consumed for H. tenuis and presented a higher recruitment rate of workers and soldiers for both species. Although the consumption had non-significant differences for C. gestroi, these termites exhibited a tendency to prefer completely buried food. In these conditions, it can be concluded that the forms of food placement used in the present research influenced the recruitment of individuals for both species. Data also suggests that when the foraging subterranean termites find food resources in the tunneling substrate, they tend to concentrate their efforts on it, a behavior regime that reduces exposure to external environment.

关键词： Coptotermes gestroi feeding behavior foraging behavior Heterotermes tenuis

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

Petrogenesis of Granites from the Ediacaran Socorro Batholith,SE Brazil:Constraints from Zircon Dating,Geochemistry and Sr-Nd-Hf Isotopes

引用

Journal of Earth Science 2021年第6期32卷 1397-1414页

作者： Bárbara Bueno toledo Valdecir de Assis Janasi Instituto de Geociências USPCEP 05508-900S∼ao PauloSPBrazil

Whole rock elemental and Sr-Nd isotope geochemistry and in situ zircon Hf isotope geochemistry were used to identify the sources of the Neoproterozoic granites from the Socorro batholith,Socorro-GuaxupéNappe(SGN),South Brasilia Orogen,*** trace elements and Hf isotope geochemistry provided information about sources and crystallization(T,f_(O2))*** main types of granites built the bulk of the batholiths,beginning with probably pre-collisional~640–630 Ma charnockites,and ending with~610 Ma voluminous post-collisional high-K calc-alkaline(HKCA)Ⅰ-type granites(Bragan?a Paulista-type).Several types of leucogranites were generated from 625 to 610 Ma,spanning the interval from collisional to post-collisional *** charnockite bodies occur in the study area:the~640 Ma Socorro charnockite has remarkable chemical similarities with Braganca Paulista-type granites,but higherε_(Nd)(t)=-6.1 and average zirconε_(Hf)(t)=-9.1 and lower^(86)Sr/^(87)Sr_(t)(0.7093)values,indicative of more juvenile and water-poor ***~633 Ma Atibaia charnockite has distinct geochemical signature(lower Mg^(#)and Sr content;higher Zr),more negativeε_(Nd)(t)=-14.1,similar average zirconε_(Hf)(t)=-8.9,and much higher^(86)Sr/^(87)Sr_(t)=0.7197,probably reflecting a larger component from old *** predominant~610 Ma Bragan?a Paulista-type granites were emplaced in a post-collisional setting,and correspond to porphyritic biotite-hornblende monzogranites of high-K calc-alkaline character with 61 wt.%–67 wt.%SiO_(2),high Mg^(#)(39–42),Sr/Y(19–40),La/Yb(12–69),highly negativeε_(Nd)(t)(-12.3 to-12.9)and zirconε_(Hf)(t)(-12 to-17)and^(87)Sr/^(86)Sr_(t)=0.7119–*** features are interpreted as indicative of magma generation in a thickened crust,where melts from enriched mantle sources emplaced in the lowermost crust,heated host old continental crust rocks(gneisses and granulites)and partially mixed with their melting *** plutons(SiO_(2)>72 wt.%)occur

关键词： U-Pb dating Socorro-GuaxupéNappe high-K calc-alkaline granites

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

2-D nonseparable multiscaling function interpolation and approximation with an arbitrary dilation matrix

引用

Communications in Nonlinear Science and Numerical Simulation 2000年第3期5卷 125-133页

作者： En-Bing LIN and Yi LING(Department of Mathematics, University of toledo, toledo OH 43606, USA e-mail: elin@math. utoledo. edu) Department of Mathematics University of Toledo Toledo OH 43606 USA

We introduce nonseparable multiscaling function interpolation and show that its approximation can provide similar convergence properties as scalar wavelet system. An equivalent condition for approximation accuracy for... 详细信息

关键词： wavelets interpolation approximation accuracy of scaling function nonseparable scaling function

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Rapid-onset antidepressant efficacy of glutamatergic system modulators:The neural plasticity hypothesis of depression

引用

Neuroscience Bulletin 2015年第1期31卷 75-86页

作者： Jing Wang Liang Jing Juan-Carlos toledo-Salas Lin Xu Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province Kunming Institute of Zoology KIZ/CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases Kunming Institute of ZoologyChinese Academy of Sciences Kunming College of Life Science University of the Chinese Academy of Sciences

Depression is a devastating psychiatric disorder widely attributed to defi cient monoaminergic signaling in the central nervous system. However,most clinical antidepressants enhance monoaminergic neurotransmission with little delay but require 4-8 weeks to reach therapeutic efficacy,a paradox suggesting that the monoaminergic hypothesis of depression is an oversimplifi cation. In contrast to the antidepressants targeting the monoaminergic system,a single dose of the N-methyl-D-aspartate receptor（NMDAR） antagonist ketamine produces rapid（within 2 h） and sustained（over 7 days） antidepressant effi cacy in treatment-resistant patients. Glutamatergic transmission mediated by NMDARs is critical for experience-dependent synaptic plasticity and learning,processes that can be modifi ed indirectly by the monoaminergic system. To better understand the mechanisms of action of the new antidepressants like ketamine,we review and compare the monoaminergic and glutamatergic antidepressants,with emphasis on neural plasticity. The pathogenesis of depression may involve maladaptive neural plasticity in glutamatergic circuits that may serve as a new class of targets to produce rapid antidepressant effects.

关键词： depression stress neural plasticity glutamatergic transmission monoamine-based antidepressant ketamine

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

Female urethral stricture:techniques for reconstruction

引用

Plastic and Aesthetic Research 2022年第1期9卷 434-444页

作者： Ignacio Alvarez de toledo Jessica DeLong Department of Urology Eastern Virginia Medical SchoolNorfolkVA 23462USA

Female urethral stricture(FUS)is a rare *** was not studied robustly for many years,but interest has grown recently in the reconstructive urology community,leading to an increase in *** this review,we gather the latest data regarding FUS and its different therapeutic *** are summarized,split by *** also review the recently published European *** addition,we share our preferred surgical technique and our views on future *** FUS can often be challenging and requires a high index of clinical *** vague clinical symptoms and empiric initial treatments combine to make FUS an underdiagnosed *** lack of consensus on how to define FUS also compounds the *** diagnosis requires thorough investigation,and ancillary studies such as video urodynamics,cystoscopy,and voiding cystourethrogram may be *** options range from conservative management to definitive procedures,although studies have shown that conservative measures such as urethral dilation have a low success rate *** definitive management,augmented urethroplasty-using either flaps or grafts,has proven to be the gold *** have shown excellent results over time;however,there is insufficient data available to recommend one over the *** data has an overall poor level of *** challenging due to the rarity of the problem,a proper randomized controlled clinical trial comparing the principal surgical options and their outcomes would be beneficial and would allow for more informed decision making when considering options for women with urethral stricture.

关键词： Urethra female urethral stricture female urethroplasty buccal mucosal graft vaginal flap

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

引用

Asian Pacific Journal of Tropical Medicine 2019年第10期12卷 479-482页

作者： Ranjit Sah Meenu Chaudhary Shusila Khadka Rafael toledo Lucrecia Acosta Department of Microbiology Tribhuvan University Institute of MedicineKathmanduNepal Department of Ophthalmology BP Koirala Lions Centre for Ophthalmic StudiesTribhuvan University Institute of MedicineKathmanduNepal área de Parasitología Departamento de FarmaciaTecnología Farmacéutica y ParasitologíaFacultad de FarmaciaUniversidad de ValenciaAv.Vicent Andrés Estellés s/n46100 BurjassotValenciaSpain área de Parasitología Departamento de Agroquímica y Medio AmbienteUniversidad Miguel Hernández de ElcheCampus de Sant Joan d′Alacant s/n03550 Sant JoanAlicanteSpain

Rationale: Microbial keratitis caused by coinfection with more than one species of pathogens is a severe condition with an unfavorable prognosis. Patient concerns: An immunocompetent Nepali woman complained of pain in the left eye, redness, watering and decreased vision for 5 months. Interventions: The patient was discarded and accurately diagnosed with coinfection with Fusarium sp. and Acanthamoeba sp. The habit of washing the eyes with tap water from a domestic storage tank was the most likely source of infection since it was found to be contaminated with cysts of Acanthamoeba sp. The woman received eye drops of fluconazole and natamycin(5%), cefazoline(50 mg/m L), atropine, and tablets of itraconazole(100 mg), which were later switched to eye drops of clotrimazole(1%), natamycin(5%) and voriconazole(1%), and tablets of itraconazole. A full thickness penetrating keratoplasty was performed followed by treatment with eye drops of voriconazole(1%), natamet(5%), ofloxacin, atropine and carboxymethylcellulose for one ***: After treatment, the condition of the patient significantly improved and was discharged one week after keratoplasty. Lessons: This is the first report of Acanthamoeba keratitis in Nepal and the first report of coinfection with Fusarium in this country and highlights the importance of early diagnosis of microbial keratitis both in single microorganism infections and coinfections, even in no contact lens wearers.

关键词： Acanthamoeba Fusarium Coinfection Microbial keratitis Nepal

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

Using　Genetic　Algorithms　to　Improve　the　Search　of　the　Weight　Space　in　Cascade－Correlation　Neural　Network

引用

Journal of Systems Engineering and Electronics 1995年第2期6卷 9-21页

作者： E.A.Mayer, K. J. Cios, L. Berke & A. Vary(University of toledo, toledo, OH 43606, U. S. A.)(NASA Lewis Research Center, Cleveland, OH) University of toledo OH 43606 U.S.A. NASA Lewis Research Center Cleveland OH

In this paper, we use the global search characteristics of genetic algorithms to help search the weight space of the neurons in the cascade-correlation architecture. The cascade-correlation learning architecture is a technique of training and building neural networks that starts with a simple network of neurons and adds additional neurons as they are needed to suit a particular problem. In our approach, instead ofmodifying the genetic algorithm to account for convergence problems, we search the weight-space using the genetic algorithm and then apply the gradient technique of Quickprop to optimize the weights. This hybrid algorithm which is a combination of genetic algorithms and cascade-correlation is applied to the two spirals problem. We also use our algorithm in the prediction of the cyclic oxidation resistance of Ni- and Co-base superalloys.

关键词： Genetic algorithm Cascade correlation Weight space search Neural network.

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

Exploring kidney biopsy findings in congenital heart diseases:Insights beyond cyanotic nephropathy

引用

World Journal of Nephrology 2024年第1期13卷 25-32页

作者： Jose Daniel Juarez-Villa Iván Zepeda-Quiroz Sebastián toledo-Ramírez Victor Hugo Gomez-Johnson Francisco Pérez-Allende Brian Ricardo Garibay-Vega Francisco E Rodríguez Castellanos Bernardo Moguel-González Edgar Garcia-Cruz Salvador Lopez-Gil Department of Nephrology Instituto Nacional de Cardiología Ignacio ChavezMexico City 14080Mexico Congenital Heart Disease Instituto Nacional de Cardiología Ignacio ChavezMexico City 14080Mexico

BACKGROUND The association between congenital heart disease and chronic kidney disease is well *** mechanisms of kidney damage associated with congenital heart disease have been *** etiology of kidneydisease has commonly been considered to be secondary to focal segmental glomerulosclerosis(FSGS),however,this has only been demonstrated in case reports and not in observational or clinical *** To identify baseline and clinical characteristics,as well as the findings in kidney biopsies of patients with congenital heart disease in our *** This is a retrospective observational study conducted at the Nephrology Depart-ment of the National Institute of Cardiology“Ignacio Chávez”.All patients over 16 years old who underwent percutaneous kidney biopsy from January 2000 to January 2023 with congenital heart disease were included in the *** Ten patients with congenital heart disease and kidney biopsy were *** average age was 29.00 years±15.87 years with pre-biopsy proteinuria of 6193 mg/24 h±6165 mg/24 *** most common congenital heart disease was Fallot’s tetralogy with 2 cases(20%)and ventricular septal defect with 2(20%)*** the 10 cases,one case of IgA nephropathy and one case of membranoproliferative glomerulonephritis associated with immune complexes were found,receiving specific treatment after histopathological diagnosis,delaying the initiation of kidney replacement *** remaining 8 cases(80%),one case of FSGS with perihilar variety was found,while the other 7 cases were non-specific *** Determining the cause of chronic kidney disease can help in delaying the need for kidney replacement *** 2 out of 10 patients in our study,interventions were performed,and initiation of kidney replacement therapy was *** studies are needed to determine the usefulness of kidney biopsy in patients with congenital heart disease.

关键词： Renal biopsy Congenital heart disease Chronic kidney disease Focal segmental glomerulosclerosis

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

Low-ionization galaxies and evolution in a pilot survey up to z=1

引用

Research in Astronomy and Astrophysics 2011年第3期11卷 245-270页

作者： Edmond Giraud Qiu-Sheng Gu Jorge Melnick Hernan Quintana Fernando Selman Ignacio toledo Paula Zelaya LPTA Universit6 Montpellier 2 - CNRS/IN2P3 34095 Montpellier France edmond.giraud@ lpta. in2p3.fr Department of Astronomy Nanjing University Nanjing 210093 China European Southern Observatory /klonso de Cbrdova 3107 Santiago Chile Department of Astronomy and Astrophysics R Universidad Catolica de Chile Casilla 306Santiago Chile

We present galactic spectroscopic data from a pencil beam of 10.75×7.5 centered on the X-ray cluster RXJ0054.0–2823 at z=*** study the spectral evolution of galaxies from z=1 down to the cluster redshift in a magnitude-limited sample at R≤23,for which the statistical properties of the sample are well *** divide emission-line galaxies into star-forming galaxies,Low Ionization Nuclear Emission line Regions（LINERs） ,and Seyferts by using emission-line ratios of[OII],Hβ,and[OIII],and derive stellar fractions from population synthesis models. We focus our analysis on absorption and low-ionization *** absorption-line galaxies,we recover the well-known result that these galaxies have had no detectable evolution since z～0.6-0.7,but we also find that in the range z=0.65-1,at least 50% of the stars in bright absorption systems are younger than 2.5 *** absorption-line galaxies in the cluster at z=0.29 also had significant star formation during the previous 2-3 Gyr,but their brighter counterparts seem to be only composed of old *** z～0.8,our dynamically young cluster had a truncated *** result seems to be consistent with a scenario where the final assembly of E/S0 took place at *** the volume-limited range 0.35≤z≤0.65,we find that 23% of the early-type galaxies have LINER-like spectra with Hβin absorption and have a significant component of A *** vast majority of LINERs in our sample have significant populations of young and intermediate-aged stars and are thus not related to AGNs,but to the population of‘retired galaxies’recently identified by Cid Fernandes et *** the Sloan Digital Sky Survey（SDSS） .Early-type LINERs with various fractions of A stars and E＋A galaxies appear to play an important role in the formation of the red sequence.

关键词： cosmology:observations—galaxies:evolution—large scale structures —evolution—RX J0054.0–2823

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

Sarcomatoid carcinoma of the pancreas—a rare tumor with an uncommon presentation and course:A case report and review of literature

引用

World Journal of Clinical Cases 2021年第15期9卷 3716-3725页

作者： Paulina F toledo Zoltan Berger Laura Carreño Gonzalo Cardenas Jaime Castillo Omar Orellana Department of Gastroenterology Hospital Clinico Universidad de ChileSantiago 834456IndependenciaChile Department of Internal Medicine Section GastroenterologyHospital Clinico Universidad de ChileSantiago 834456IndependenciaChile Department of Pathology Hospital Clínico de la Universidad de ChileSantiago 834456IndependenciaChile Department of Radiology Hospital Clínico Universidad de ChileSantiago 834456IndependenciaChile Department of Surgery Hospital Clínico Universidad de ChileSantiago 834456IndependenciaChile

BACKGROUND Sarcomatoid carcinoma of the pancreas(SCP)is a rare type of pancreatic neoplasm,and only a few cases have been described in the ***,it is composed mostly of atypical spindle cells with apparent sarcomatous *** SUMMARY This is a report of a 61-year-old Chilean woman who underwent medical investigation for acute abdominal *** tomography identified a solid tumor in the tail of the pancreas with features suspicious of ***-bloc distal pancreatectomy and splenectomy were performed to excise the *** and immunohistochemistry were confirmatory of sarcomatoid carcinoma with lymphovascular *** surgery,the patient did not receive *** studies indicate a poor prognosis for this type of ***,our patient has survived for 35 mo with no recurrence to *** The case presented herein is a patient with an SCP with a rare presentation and long-term survival after surgery despite not receiving adjuvant chemotherapy.

关键词： Pancreatic neoplasms Sarcomatoid carcinoma Pancreatic ductal carcinoma Survival Abdominal pain Case report

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：