检索结果-南通市图书馆

Feather content of porphyrins in Eurasian eagle owl(Bubo bubo)fledglings depends on body condition and breeding site quality

引用

Integrative Zoology 2018年第5期13卷 569-578页

作者： Ismael GALVÁN maría del mar delgado Pablo RCAmarERO Rafael MATEO RuiLOURENÇO Vincenzo PENTERIANI Department of Evolutionary Ecology Doñana Biological Station-CSICSevillaSpain Research Unit of Biodiversity-UOCSIC-PA Oviedo UniversityMieresSpain Institute for Game and Wildlife Research IREC-CSIC-UCLM-JCCMCiudad RealSpain Labor-Laboratório de Ornitologia Instituto de Ciências Agrárias e Ambientais MediterrânicasUniversity of EvoraÉvoraPortugal Pyrenean Institute of Ecology(IPE)-CSIC ZaragozaSpain

Porphyrins are pigments produced in most animal cells during the synthesis of heme,but their importance for external coloration is ***(Order Strigiformes)are among the few animals that accumulate porphyrins in the integument,where it could serve as a means of *** we hypothesized that the porphyrin content of feathers may depend on body condition and breeding site quality in Eurasian eagle owl(Bubo bubo)fledglings and,thus,constitute amplifiers of the quality of the area where they are *** high-performance liquid chromatography,we found 2 porphyrins(protoporphyrin IX and coproporphyrin III)in the body feathers of 19 eagle owl fledglings from 7 breeding *** III,but not protoporphyrin IX feather concentration,was positively associated with the body mass of fledglings and with the quality of the breeding sites where they were reared with respect to food quality and *** coproporphyrin III is produced under oxidative stress,we suggest that good breeding sites may lead to fledglings in good ***,in turn,may make fledglings induce a certain level of free radical and coproporphyrin III production to signal to conspecifics their site-mediated capacity to cope with oxidative *** is the first time that porphyrin content in the integument has been found to be related to individual quality,opening a new scenario for studying evolution of animal coloration.

关键词： amplifiers condition-dependence eagle owl fluorescence porphyrins

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

Challenges and improvement strategies in the hospitalization of chronic multimorbid patients

引用

World Journal of Clinical Cases 2025年第3期13卷 35-41页

作者： Andres Fontalba-Navas Francisco Pozo Muñoz Rogelio Garcia Cisneros maria Jose Garcia Larrosa maria del mar Callejon Gil Ignacio Garcia delgado maria Belen Jimenez martinez Antequera Hospital Northern Málaga Integrated Healthcare AreaAntequera 29200AndalusiaSpain Department of Public Health and Psychiatry University of MálagaMálaga 29010Spain Antequera Hospital Northern Málaga Antequera Integrated Healthcare AreaAntequera 29200MálagaSpain

BACKGROUND Addressing the growing challenge of hospitalizing chronic multimorbid patients,this study examines the strain these conditions impose on healthcare systems at a local level,focusing on a pilot *** diseases and complex patients require comprehensive management strategies to reduce healthcare burdens and improve patient *** proven effective,this pilot model has the potential to be replicated in other healthcare settings to enhance the management of chronic multimorbid *** To evaluate the effectiveness of the high complexity unit(HCU)in managing chronic multimorbid patients through a multidisciplinary care model and to compare it with standard hospital *** The study employed a descriptive longitudinal approach,analyzing data from the Basic Minimum Data Set(BMDS)to compare hospitalization variables among the HCU,the Internal Medicine Service,and other services at Antequera Hospital throughout *** HCU,designed for patients with complex chronic conditions,integrates a patient-centered model emphasizing multidisciplinary care and continuity *** The study employed a descriptive longitudinal approach,analyzing data from the BMDS to compare hospitalization variables among the HCU,the Internal Medicine Service,and other services at Antequera Hospital throughout *** HCU,designed for patients with complex chronic conditions,integrates a patient-centered model emphasizing multidisciplinary care and continuity *** This study demonstrates the effectiveness of the HCU in managing patients with complex chronic diseases through a multidisciplinary *** coordinated care provided by the HCU results in improved patient outcomes,reduced unnecessary hospitalizations,and better management of patient *** superiority of the HCU compared to standard care is evident in key outcomes such as fewer readmissions and higher patient satisfaction,reinforcing its value as a model of ca

关键词： High complexity unit Chronic multimorbidity Patient-centered care Integrated care Healthcare management

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

Effect of Nd3+doping on structure,microstructure,lattice distortion and electronic properties of TiO_2 nanoparticles

引用

Journal of Rare Earths 2017年第3期35卷 259-270页

作者： Balter Trujillo-Navarrete maría del Pilar Haro-Vázquez Rosa maría Félix-Navarro Francisco Paraguay-delgado Henry Alvarez-Huerta Sergio Pérez-Sicairos Edgar Alonso Reynoso-Soto institute technology of tijuana(itt) blvd.alberto limón padillaP.O.B 1166.Tijuana B.C.Mexico university autonomous of baja california(uabc) roadway university14418P.O.B 22390Tijuana B.C.Mexico investigations center of advanced materials(cimav).miguel de cervantes 120.P.O.B31109ChihuahuaMexico

Doped and undoped TiCh nanoparticles were prepared by Stober method and thermally treated at 600 ℃.The effect of Nd^（3＋） ion on the structure and micro structure of anatase-phase TiCh nanocrystals was studied by Rietveld refinement method using X-ray powder diffraction *** lengths,bond angles,and edges distances were *** phase formation was confirmed by high-resolution transmission electron *** adjustment of Ti-0 bond length induced by the addition of Nd^（3＋） ions,reduced the octahedral distortion and altered the octahedral array in the anatase-phase TiCh *** changes of structure and microstructure were mainly observed for TiCh nanoparticles doped with 0.1 at.%of Nd^（3＋） ions and attributed to the cationic substitution of Ti^（4＋） ions which promoted changes in the density of states and gap band of *** dopant insertion resulted in a better structural stability of the nanocrystals that enhanced their charge transference and photocatalytic efficiency.

关键词： neodymium TiO_2 nanoparticles microstructure lattice distortion photocatalytic activity optical properties Rietveld refinement rare earths

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

Land cover changes and fragmentation in mountain neotropical ecosystems of Oaxaca, Mexico under community forest management

引用

Journal of Forestry Research 2019年第1期30卷 143-155页

作者： Rafael M~a Navarro Cerrillo Dennis J.Esteves Vieira Susana Ochoa-Gaona Bernardus H.J.de Jong M~a del mar delgado Serrano Depto. Ingeniería Forestal Laboratorio de SelviculturaDendrocronología y Cambio Climático.Dendrodat Lab-ERSAF Universidad de Córdoba Depto. de Engenharia Florestal Faculdade de Engenharia Florestal Laboratório de Sensoriamento Remoto e Geotecnologia Universidade Federal de Mato Grosso Departamento de Ciencias de la Sustentabilidad El Colegio de la Frontera Sur-Unidad Campeche Depto. Economía Sociología y Política Agrarias Grupo de Evaluación y Restauración de Sistemas Agrícolas y Forestales-ERSAF Universidad de Córdoba

Changes in land cover have a direct impact on forest ecosystem goods and services. In this study, changes in land cover in Sierra de Juarez–Oaxaca ecosystems were estimated using a consistent processing of Landsat images and OBIA methodology. Additionally, landscape analyses using FRAGSTAT were conducted. In 2014, Sierra de Juarez–Oaxaca was covered by approximately 84% of forests, mainly pine-oak and cloud forests. After extensive deforestation until 2001, this trend was reversed and the forest cover surface area in 2014 was slightly higher than in 1979. The comparison of the landscape structure of the forested and agricultural lands suggests an increase in habitat heterogeneity. However, interspersion and juxtaposition indices, showing the patch shape by patch area and perimeter, were similar throughout the study period(1979–2014). Social and economic drivers can explain this situation: namely, community organization, forest enterprises, payment for ecosystem services programs, and changes of agricultural activity. Communities in the Sierra of Oaxaca have reforested degraded lands, created community forest enterprises, and preserved the forest under conservation schemes like those proposed by the Mexican payment for ecosystem services programs. However, their sustainable management faces internal challenges and has become highly dependent on political and institutional decisions beyond their control.

关键词： Tropical and temperate forests Social forestry Land uses segmentation OBIA FRAGSTAT

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

Carbon Dioxide/Methane Separation by Adsorption on Sepiolite

引用

Journal of Natural Gas Chemistry 2007年第3期16卷 235-243页

作者： José A.delgado maría A.Uguina José L.Sotelo Beatriz Ruíz marcio Rosário Department of Chemical Engineering Universidad Complutense de Madrid28040Madrid.Spain

In this work, the use of sepiolite for the removal of carbon dioxide from a carbon dioxide/methane mixture by a pressure swing adsorption （PSA） process has been researched. Adsorption equilibrium and kinetics have been measured in a fixed-bed, and the adsorption equilibrium parameters of carbon dioxide and methane on sepiolite have been obtained. A model based on the LDF approximation has been employed to simulate the fixed-bed kinetics, using the Langmuir equation to describe the adsorption equilibrium isotherm. The functioning of a PSA cycle for separating carbon dioxide/methane mixtures using sepiolite as adsorbent has also been studied. The experimental results were compared with the ones predicted by the model adapted to a PSA system. Methane with purity higher than 97% can be obtained from feeds containing carbon dioxide with concentrations ranging from 34% to 56% with the proposed PSA cycle. These results suggest that sepiolite is an adsorbent with good properties for its employment in a PSA cycle for carbon dioxide removal from landfill gases.

关键词： carbon dioxide methane sepiolite adsorption fixed-bed pressure swing adsorption

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

Genomic patterns of homozygosity and inbreeding depression in MurcianoGranadina goats

引用

Journal of Animal Science and Biotechnology 2022年第3期13卷 721-734页

作者： maría Gracia Luigi-Sierra Almudena Fernández Amparo martínez Dailu Guan Juan Vicente delgado Javier FernándezÁlvarez Vincenzo Landi Francesc Xavier Such Jordi Jordana maría Saura marcel Amills Centre for Research in Agricultural Genomics(CRAG) CSIC-IRTA-UAB-UBUniversitat Autònoma de Barcelona08193 BellaterraSpain Departamento de Mejora Genética Animal INIACarretera de la Coruña km 7528040 MadridSpain Departamento de Genética Universidad de Córdoba14071 CórdobaSpain Department of Veterinary Medicine University of Bari“Aldo Moro”62 per Casamassima km.370010 ValenzanoSPItaly Group of Research in Ruminants(G2R) Department of Animal and Food ScienceUniversitat Autònoma de Barcelona(UAB)BellaterraBarcelonaSpain Departament de Ciència Animal i dels Aliments Facultat de VeterinàriaUniversitat Autònoma de Barcelona08193 BellaterraSpain

Background:Inbreeding depression can adversely affect traits related to fitness,reproduction and productive *** current research suggests that inbreeding levels are generally low in most goat breeds,the impact of inbreeding depression on phenotypes of economic interest has only been investigated in a few studies based on genealogical ***:We genotyped 1040 goats with the Goat SNP50 *** information was used to estimate different molecular inbreeding coefficients and characterise runs of homozygosity and homozygosity *** detected38 genomic regions with increased homozygosity as well as 8 ROH hotspots mapping to chromosomes 1,2,4,6,14,16 and *** hundred seventeen goats with available records for dairy traits were analysed to evaluate the potential consequences of inbreeding depression on milk *** regions on chromosomes 8 and 25were significantly associated with inbreeding depression for the natural logarithm of the somatic cell ***,these regions contain several genes related with immunity,such as SYK,IL27,CCL19 and ***,one region on chromosome 2 was significantly associated with inbreeding depression for milk ***:Although genomic inbreeding levels are low in Murciano-Granadina goats,significant evidence of inbreeding depression for the logarithm of the somatic cell count,a phenotype closely associated with udder health and milk yield,have been detected in this *** inbreeding would be expected to augment economic gain by increasing milk yield and reducing the incidence of mastitis,which is one of the main causes of dairy goat culling.

关键词： Goat Inbreeding Milk yield Murciano-Granadina Somatic cell score

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

COVID-19 pandemic,as experienced in the surgical service of a district hospital in Spain

引用

World Journal of Clinical Cases 2021年第23期9卷 6582-6590页

作者： Francisco Javier Pérez Lara maria Belen Jimenez martinez Francisco Pozo Muñoz Andres Fontalba Navas Rogelio Garcia Cisneros maria Jose Garcia Larrosa Ignacio Garcia delgado maria del mar Callejon Gil Department of Surgery Hopital de AntequeraAntequera 29200MálagaSpain North Malaga Healthcare District Hopital de AntequeraAntequera 29200MálagaSpain

The coronavirus disease 2019,which is caused by severe acute respiratory syndrome coronavirus 2,was first identified in December 2019 in Wuhan,China,and has since spread rapidly,evolving into a full-blown *** would like to report our experience after 1 year of this pandemic in the surgical service of a district hospital in *** have been many changes(including new protocols)that our service and the hospital have undergone,to adapt to the new *** believe that this experience can be useful for other professionals who have lived and are living a similar situation.

关键词： COVID-19 Hospital Experience Surgery Service Treatment

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

CagA EPIYA polymorphisms in Colombian Helicobacter pylori strains and their influence on disease-associated cellular responses

引用

World Journal of Gastrointestinal Oncology 2013年第3期5卷 50-59页

作者： Carlos Alberto Fajardo Andrés Javier Quiroga Andrea Coronado Karen Labrador Nicole Acosta Pilar delgado Carlos Jaramillo maría Mercedes Bravo Cancer and Infectious Agents Research Group National Cancer Institute Molecular Diagnostics and Bioinformatics Laboratory Biological Sciences Department Los Andes University

AIM: To investigate the influence of the CagA diversity in Helicobacter pylori (H. pylori ) strains from Colombia on the host cell biology. METHODS: Eighty-four H. pylori-cagA positive strains with different Glu-Pro-Ile-Tyr-Ala (EPIYA) motifs patterns, isolated from patients with gastritis (n=17), atrophic gastritis (n=17), duodenal ulcer (n=16), intestinal metaplasia (n=16) and gastric cancer (n=18), were included. To determine the integrity of the cag pathogenicity island (cag PAI) we evaluated the presence of cagA, cagT, cagE, and cag10 genes by polymerase chain reaction. AGS gastric epithelial cellswere infected with each strain and assayed for translo-cation and tyrosine phosphorylation of CagA by western blot, secretion of interleukin-8 (IL-8) by enzyme-linked immuno sorbent assay after taking supernatants from cocultures and cell elongation induction. For cell elongation quantification, coculture photographs were taken and the proportion of "hummingbird" cells (>15 μm) was determined. RESULTS: Overall 72% (60/84) of the strains were found to harbor a functional cag PAI. Levels of phos-phorylated CagA were significantly higher for isolates from duodenal ulcer than the ones in strains from gas-tritis, atrophic gastritis, intestinal metaplasia and gastric cancer (49.1% ± 23.1% vs 21.1% ± 19.5%, P < 0.02; 49.1% ± 23.1% vs 26.2%±14.8%, P<0.045; 49.1% ± 23.1% vs 21.5% ± 19.5%, P<0.043 and 49.1% ± 23.1% vs 29.5% ± 27.1%, P < 0.047 respectively). We observed variable IL-8 expression levels ranging from 0 to 810 pg/mL and from 8.8 to 1442 pg/mL at 6 h and 30 h post-infection, respectively. cagPAI-defective strains did not induce detectable levels of IL-8 at 6 h post-infection. At 30 h post-infection all strains induced IL-8 expression in AGS cells, although cagPAI-defective strains induced significantly lower levels of IL-8 than strains with a functional cagPAI (57.1 ± 56.6 pg/mL vs 513.6 ± 338.6 pg/mL,P < 0.0001). We did not observe differences in the extent of cell

关键词： Helicobacter pylori cagA 3’region CagA protein Interleukin 8 Cell elongation Glu-Pro-Ile-Tyr-Ala

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

Helicobacter pylori CagA protein polymorphisms and their lack of association with pathogenesis

引用

World Journal of Gastroenterology 2010年第31期16卷 3936-3943页

作者： Nicole Acosta Andrés Quiroga Pilar delgado maría Mercedes Bravo Carlos Jaramillo Molecular Diagnostics and Bioinformatics Laboratory Biological Sciences DepartmentLos Andes University Infectious Agents and Cancer Research Group National Cancer Institute(Colombia)

AIM: To investigate Helicobacter pylori (H. pylori) CagA diversity and to evaluate the association between protein polymorphisms and the occurrence of gastric pathologies. METHODS: One hundred and twenty-two clinical isolates of H. pylori cultured from gastric biopsies obtained from Colombian patients with dyspepsia were included as study material. DNA extracted from isolates was used to determine cagA status, amplifying the C-terminal cagA gene region by polymerase chain reaction. One hundred and six strains with a single amplicon were sequenced and results were used to characterize the 3' variable region of the cagA gene. To establish the number and type of tyrosine phosphorylation motifs Glutamine acid-Proline-Isoleucine-Tyrosine-Alanine (EPI-YA) bioinformatic analysis using Amino Acid Sequence Analyzer-Amino Acid Sequence Analyzer software was conducted. Analysis of the association between the number of EPIYA motifs and the gastric pathology was performed using χ2 test and analysis of the presence of EPIYA-C motifs in relation to the pathology was made by logistic regression odds ratios. Comparisons among EPIYA types found and those reported in GenBank were performed using a proportion test in Statistix Analytical Software version 8.0. RESULTS: After amplification of the 3' of the cagA gene, 106 from 122 isolates presented a single amplicon and 16 showed multiple amplicons. As expected, diversity in the size of the cagA unique fragments among isolates was observed. The 106 strains that presented a single amplicon after 3' cagA amplification came from patients with gastritis (19 patients), atrophic gastritis (21), intestinal metaplasia (26), duodenal ulcer (22) and gastric cancer. DNA sequence analysis showed that the differences in size of 3' cagA unique fragments was attributable to the number of EPIYA motifs: 1.9% had two EPIYA motifs, 62.3% had three, 33.0% had four and 2.8% had five motifs. The majority of tested clinical strains (62.3%) were found to harbor

关键词： Helicobacter pylori CagA-protein polymorphisms Molecular characterization Bioinformatic analysis Pathogenesis Cancer

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

From conventional two-stage hepatectomy to ALPPS:Fifteen years of experience in a hepatobiliary surgery unit

引用

Hepatobiliary & Pancreatic Diseases International 2021年第6期20卷 542-550页

作者： Javier Maupoey Ibáñez Eva maría MontalváOrón Andrea BoscàRobledo Alonso Camacho Ramírez Ana Hernando Sanz Pablo Granero Castro Alberto Alegre delgado Rafael López-Andújar Hepatobiliary Surgery and Transplant Unit La Fe University and Polytechnic HospitalValenciaSpain Department of Radiology La Fe University and Polytechnic HospitalValenciaSpain

Background:Hepatectomy in patients with large tumor load may result in postoperative liver failure and associated complications due to excessive liver parenchyma *** two-stage hepatectomy(TSH)and associating liver partition and portal vein ligation for staged hepatectomy(ALPPS)technique are possible solutions to this *** liver metastases(CRLM)is the most frequent indication,and there is a need to assess outcomes for both techniques to improve surgical and long-term oncological outcomes in these ***:A single-center retrospective study was designed to compare TSH with ALPPS in patients with initially unresectable bilateral liver tumors between January 2005 and January *** was performed from January 2012 onwards as the technique of ***-term overall survival(OS)and disease-free survival(DFS)were evaluated as primary outcome in CRLM *** morbidity,mortality and liver growth in all patients were also ***:A total of 38 staged hepatectomies were performed:17 TSH and 21 *** resection rate was 76.5%(n=13)in the TSH group and 85.7%(n=18)in the ALPPS group(P=0.426).Overall major morbidity(Clavien-Dindo≥3 a)(stage 1+stage 2)was 41.2%(n=7)in TSH and 33.3%(n=7)in ALPPS patients(P=0.389),and perioperative 90-day mortalities were 11.8%(n=2)vs.19.0%(n=4)in each group,respectively(P=0.654).Intention-to-treat OS rates at 1 and 5 years in CRLM patients for TSH(n=15)were 80%and 33%,and for ALPPS(n=17)76%and 35%,*** rates at 1 and 5 years were 36%and 27%in the TSH group vs.33%and 27%in the ALPPS group,***:ALPPS is an effective alternative to TSH in bilateral affecting liver tumors,allowing higher resection rate,but patients must be carefully *** CRLM patients similar long-term OS and DFS can be achieved with both techniques.

关键词： ALPPS Two-stage hepatectomy Colorectal liver metastases Posthepatectomy liver failure

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

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：