检索结果-南通市图书馆

morphological traits explain the individual position within resource-consumer networks of a Neotropical marsupial

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current Zoology 2024年第4期70卷 453-464页

作者： Nicholas F.de camargo Hernani F.m.de Oliveira Juliana F.Ribeiro Amabilio J.A.de camargo Emerson m.Vieira Laboratorio de Ecologia de Vertebrados Departamento de EcologiaInstituto de Ciencias BiologicasUniversidade de BrasiliaCP 04457BrasiliaDF70910-900Brazil Departamento de Zoologia Setor de Ciencias BiologicasUniversidade Federal do ParanaAvenida Coronel Francisco Heraclito dos Santos100CuritibaPR81531980Brazil Embrapa Cerrados Rodovia BR020km 18CP 08223PlanaltinaDE73310-970Brazil

Knowledge regarding the influence of individual traits on interaction patterns in nature can help understand the topological role of individuals within a network of intrapopulation *** tested hypotheses on the relationships between individuals'positions within networks(specialization and centrality)of 4 populations of the mouse opossum Gracilinanus agilis and their traits(i.e.,body length,body condition,tail length relative to body length,sex,reproductive condition,and botfly parasitism)and also seasonal effects in the Brazilian *** with lower body length,better body condition,and relatively shorter tail were more specialized(i.e.,less connected within the network).Individuals were also more specialized and less connected during the warm-wet *** relationship between individuals'position in the network and body traits,however,was independent of *** propose that specialization may arise not only as a result of preferred feed-ing strategies by more capable individuals(i.e.,those with better body condition and potentially prone to defend and access high-quality food resources)but alsobecause of morphological ***/younger individuals(consequently with less experience in foraging)and short-tailed individuals(less skilled to explore the vertical strata of the vegetation)would feed only on a subset of the available food resources and consequently become more ***,individuals are more specialized during the warm-wet season because of high competition(population-dense period)and higher ecological opportunities(resource-rich period).Therefore,our study reveals the relevance of individual traits inshaping interactionpatternsandspecialization inpopulations.

关键词： bodytraits centrality Cerrado Gracilinanus agilis seasonality specialization.

Neuropsychological Profile of a Patient with Acquired Brain Damage Following Vascular Lesion of the Left Anterior Cingulate Cortex

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neuroscience & medicine 2024年第1期15卷 66-75页

作者： Jimmy Zúñiga-márquez Lina Borda-camargo Diego Buitrago-mora Lorely Guerra-Valdés Laura González Patricia Quintero-Cusgüen Nataly Gutierrez-Ávila Hospital Universitario de la Samaritana Bogotá Colombia Neuropsychological Assessment and Diagnosis Graduate Program School of Psychology Universidad San Buenaventura Bogotá Bogotá Colombia

Stroke is a physiological alteration associated with changes in blood flow that can result in sudden-onset cognitive impairment. It has a heterogenous clinical presentation with varying degrees of severity correlated with specific central nervous system zones or areas, and its prognosis is uncertain. This case study describes a 62-year-old male patient with acquired brain damage of the anterior cingulate cortex as a result of an ischemic event in the territory of the left anterior cerebral artery. Cognitive function was assessed using the neuropsychological executive function and frontal lobe test battery (BANFE-2) as well as other neuropsychological tests. The results show a profile of higher mental functions characterized by the presence of dysexecutive syndrome with marked behavioral alteration and diencephalic amnesia. .

关键词： Ischemic Stroke Anterior Cingulate Cortex Neuropsychology Acquired Brain Damage

Evaluation of the Antibacterial and Antifungal Capacity of Nanoemulsions Loaded with Synthetic Chalcone Derivatives Di-Benzyl Cinnamaldehyde and Benzyl 4-Aminochalcone

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 Renewable materials 2024年第2期12卷 285-304页

作者： Flavia Oliveira monteiro da Silva Abreu Taysse Holanda Joice Farias do Nascimento Henety Nascimento Pinheiro Rachel menezes Castelo Hélcio Silva dos Santos Thais Benincá Patrícia da Silva malheiros Júlio César Sousa Prado Raquel de Oliveira Fontenelle maria madalena de camargo Forte Natural Polymers Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Polymeric materials Laboratory PPGE3MFederal University of Rio Grande do SulPorto Alegre91501-970Brazil Natural Product Chemistry Laboratory PPGCNState University of CearáFortaleza60.714.903Brazil Food Hygiene and microbiology Laboratory PPGCTAFederal University of Rio Grande do SulPorto Alegre91501-970Brazil microbiology Laboratory Medicine SchoolFederal University of CearáSobral62010-560Brazil

With the increase in antimicrobial resistance,it has become necessary to explore alternative approaches for combating and preventing ***-cinnamaldehyde(CNm)and Benzyl4-amino(B4Am)are bioactive compounds derived from chalcones but with restricted solubility in aqueous *** can enhance the solubility of compounds and can be a promising alternative in the development of novel antimicrobials,with reduced side effects and prolonged *** objective of this study was to evaluate the stability of oil-in-water nanoemulsions loaded with two distinct types of chalcones at two different dosages,to propose a stable formulation with antimicrobial *** showed that nanoemulsions presented high encapsulation efficiency,low polydispersity index(PDI)and particle size below 200 nm,indicating that emulsification was a suitable method for nanoemulsion *** with higher dosages exhibited significant antimicrobial effects when compared to free chalcones and positive ***,B4Am nanoemulsions at higher dosages showed expressive activity against Salmonella minnesota,with a 420%greater inhibitory response compared to the free form and showing equivalence to the positive *** nanoemulsions showed excellent inhibitory activity at the highest dosage,equivalent to the positive control against *** and Staphylococcus *** greater number of conjugated bonds in CNm increased the antimicrobial activity in comparison with B4Am,and the formation of nanometric domains enhanced the bioavailability,being a promising alternative for antimicrobial applications.

关键词： Polysaccharide nanoemulsions S.aureus S.minnesota chalcones alginate

Quench Dynamics of Neutral Atoms in Out-Equilibrium One-Dimensional Optical Lattices

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2018年第10期70卷 496-500页

作者： V.Leyton A.Arguelles m.camargo Centro de Investigacidn en Ciencias Basicas Universidad Santiago de Cali Calle 5 No. 62-00 Cali Colombia Centro de Investigaciones en Ciencias Baisicas y Aplicadas Universidad Antonio Narifio Km 18 via Cali-Jamundf 760030 Santiago de Cali Colombia

A quantum simulator is proposed for nucleation and growth dynamics using an out-of equilibrium optical lattice. We calculate the density of neutral atoms in the lattice and we establish the connection with the Kolmogorovmehl-Johnson-Avrami model. Here we show that an Avrami equation can describe most of the evolution in time of the population growth in the lattice, coherence between neutral atoms leads a complex growth rate.

关键词： 1D optical lattice Bose-Hubbard model out-equilibrium system nucleation

Luminescent polymer electrolytes based on chitosan and containing europium triflate

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

Journal of Rare Earths 2016年第7期34卷 661-666页

作者： R.Alves A.S.S.de camargo A.Pawlicka m.m.Silva Center of Chemistry University of MinhoGualtar4710-057 BragaPortugal Sao Carlos Institute of Physics University of Sao Paulo13566-590 Sao Carlos-SPBrazil Sao Carlos Institute of Chemistry University of Sao Paulo13566-590 Sao Carlos-SPBrazil

Solid polymer electrolytes based on chitosan and europium triflate were prepared by solvent casting and characterized by X-ray diffraction, scanning electron microscopy （SEm）, atomic force microscopy （AFm）, and photoluminescence spectroscopy. The X-ray diffraction exhibited that the samples were essentially amorphous with organized regions over the whole range of the salt content studied. The AFm analysis demonstrated that the smoother sample had roughness of 4.39 nm. Surface visualization through SEm revealed good homogeneity without any phase separation for more conductive samples and the less conductive showed some im- perfections on the surface. The emission and excitation spectra displayed the characteristic bands of Eu（CF3SO3）3 in addition to broad bands corresponding to the polymer host. The excited state 5D0 lifetime values ranged from 0.29-0.37 ms for the studied samples.

关键词： solid polymer electrolytes natural polymers photoluminescence spectroscopy rare earths

Experimental and Data Fitting Guidelines for the Determination of Polymer Crystallization Kinetics

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

Chinese Journal of Polymer Science 2022年第6期40卷 658-691页

作者： Ricardo Arpad Perez-camargo Guo-ming Liu Du-Jin Wang Alejandro J.muller Beijing National Laboratory for molecular Sciences CAS Key Laboratory of Engineering PlasticsInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China POLYmAT and Department of Polymers and Advanced materials:Physics Chemistry and TechnologyFaculty of ChemistryUniversity of the Basque Country UPV/EHUDonostia-San Sebastián 20018Spain IKERBASQUE Basque Foundation for ScienceBilbao 48013Spain

The crystallization kinetics of semicrystalline polymers is often studied with isothermal experiments and analyzed by fitting the data with analytical expressions of the Avrami and Lauritzen and Hoffman(LH)*** correctly carry out the analysis,precautions in both experiments and data fitting should be ***,we systematically discussed the factors that influence the validity of the crystallization kinetics *** basic concepts and fundamentals of the Avrami and LH theories were introduced at ***,experimental protocols were discussed in *** clarify the impact of various experimental parameters,selected common polymers,i.e.,polypropylene and polylactide,were studied using various experimental techniques(i.e.,differential scanning calorimetry and polarized light optical microscopy).Common mistakes were simulated under conditions when non-ideal experimental parameters were ***,from a practical point of view,we show how to fit the experimental data to the Avrami and the LH theories,using an Origin■App developed by us.

关键词： Isothermal crystallization Avrami equation Lauritzen and Hoffman theory Thermal analysis Step-crystallization

Non-Canonical Functions of the E2F/DP Pathway with Emphasis in Plants

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

Phyton-International Journal of Experimental Botany 2021年第2期90卷 307-330页

作者： Víctor A.Sánchez-camargo Samantha Romero-Rodríguez Jorge m.Vázquez-Ramos Facultad de Química Departamento de BioquímicaUniversidad Nacional Autónoma de MéxicoAvenida Universidad y CopilcoCiudad de México04510México Plant Development and(Epi)Genetics Group Swammerdam Institute for Life SciencesUniversiteit van AmsterdamAmsterdam1098XHNetherlands

The E2F/DP pathway is a widely conserved regulatory mechanism in pluricellular *** family of E2F and DP transcription factors was originally described having a role in the transition from the G1 to the S phase of the cell ***,the discovery of hundreds of possible gene targets and their involvement in many other biochemical processes,soon showed that they participated in cell development and differentiation,chromatin remodeling,DNA repair and *** E2F/DP transcription factors can act as either activators or repressors of transcription depending on their association to other regulatory proteins,particularly the retinoblastoma protein,or even depending to their protein structure that can define their *** plants the E2F/DP pathway also regulates endoreduplication,a process present along the life cycle,from organ elongation to root differentiation and *** transcription factors also help plant cells to respond to environmental disturbances such as those caused by different types of radiation,or by *** review focuses on the“so called”non-canonical functions of the E2F/DP family proteins in animal and plant cells,that are in fact essential activities that connect regulatory circuits among multiple metabolic pathways by means of their atypical functions.

关键词： E2F DP transcription factors atypical functions plant cells

Successful treatment with hysteroscopy for infertility due to isthmocele and hydrometra secondary to cesarean section: A case report

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 Clinical Cases 2019年第6期7卷 753-758页

作者： Luis Pablo López Rivero miguel Jaimes Felipe camargo Esther López-Bayghen Instituto de Infertilidad y Genética méxico SC Departamento de Toxicología Centro de Investigación de Estudios

BACKGROUND An isthmocele is a scar defect in the uterine wall due to a cesarean section. Its prevalence is unknown,but it has been associated with secondary ***,we present a case where the patient suffered from an isthmocele that was associated with persistent hydrometra,which developed during in vitro *** SUmmARY The patient underwent hysteroscopic surgery,which successfully resolved the isthmocele as well as the hydrometra. Afterward,two high-quality,euploid embryos,determined by morphological assessment and pre-implantation genetic diagnostic testing,were transferred. This resulted in uterine pregnancy,as determined byserum β-human chorionic gonadotropin levels on day 14(180 m U/mL) and ultrasound-confirmed presence of a gestational sac with a positive embryocardia at week 6. The pregnancy reached 36 wk without any complications,and the product was born in good health. We report a successful isthmocele treatment in a patient with secondary infertility,in which the isthmocele was the cause of persistent *** Hydrometra caused by secondary cesarean is an infertility factor,which can be corrected by hysteroscopy plus ablation of the isthmocele.

关键词： In vitro fertilization Isthmocele Hydrometra Case report

Loss of LAT1 sex-dependently delays recovery after caerulein-induced acute pancreatitis

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 Gastroenterology 2022年第10期28卷 1024-1054页

作者： Cristina m Hagen Eva Roth Theresia Reding Graf François Verrey Rolf Graf Anurag Gupta Giovanni Pellegrini Nadège Poncet Simone mafalda Rodrigues camargo Institute of Physiology University of ZurichZurich 8057ZHSwitzerland Swiss Hepato-Pancreato-Biliary Center Department of Visceral and Transplantation SurgeryZurich University HospitalZurich 8091ZHSwitzerland Institute of Veterinary Pathology University of ZurichZurich 8057ZHSwitzerland

BACKGROUND The expression of amino acid transporters is known to vary during acute pancreatitis(AP)except for LAT1(slc7a5),the expression of which remains ***1 supports cell growth by importing leucine and thereby stimulates mammalian target of rapamycin(mTOR)activity,a phenomenon often observed in cancer *** mechanisms by which LAT1 influences physiological and pathophysiological processes and affects disease progression in the pancreas are not yet *** To evaluate the role of LAT1 in the development of and recovery from *** AP was induced with caerulein(cae)injections in female and male mice expressing LAT1 or after its knockout(LAT1 Cre/LoxP).The development of the initial AP injury and its recovery were followed for seven days after cae injections by daily measuring body weight,assessing microscopical tissue architecture,mRNA and protein expression,protein synthesis,and enzyme activity levels,as well as by testing the recruitment of immune cells by FACS and *** The initial injury,evaluated by measurements of plasma amylase,lipase,and trypsin activity,as well as the gene expression of dedifferentiation markers,did not differ between the ***,early metabolic adaptations that support regeneration at later stages were blunted in LAT1 knockout *** in females,we observed less mTOR reactivation and dysfunctional *** later regeneration phase was clearly delayed in female LAT1 knockout mice,which did not regain normal expression of the pancreas-specific differentiation markers recombining binding protein suppressor of hairless-like protein(rbpjl)and basic helixloop-helix family member A15(mist1).Amylase mRNA and protein levels remained lower,and,strikingly,female LAT1 knockout mice presented signs of fibrosis lasting until day *** contrast,pancreas morphology had returned to normal in wild-type *** LAT1 supports the regeneration of acinar cells after *** mice lacking LAT1 exh

关键词： Acute pancreatitis Amino acid transporter LAT1 metabolism Regeneration Fibrosis