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Urban development and industrialization impacts on semiaquatic bugs diversity: A case study in eastern Amazonian streams

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Water Biology and Security 2022年第4期1卷 43-50页

作者： Erlane Jose cunha Gabriel Martins Cruz Ana Paula Justino Faria John Nascimento De Oliveira leandro Juen Programa de Pos-graduaçao em Ecologia Universidade Federal do Para e Embrapa Amazonia OrientalRua Augusto CorreiaNº1Bairro GuamaCEP66075-110BelemParaBrazil Programa de Pos-graduaçao em Zoologia Universidade Federal do Para/Museu Paraense Emílio GoeldiRua Augusto CorreiaNº1Bairro GuamaCEP66075-110BelemParaBrazil Laboratorio de Ecologia e Conservaçao Universidade Federal do Para/Rua Augusto CorreiaNº1Bairro GuamaCEP66075-110BelemParaBrazil Programa de Pos-Graduaçao em Agricultura e Ambiente Laboratorio de Ciencias Ambientais e BiodiversidadeUniversidade Estadual do MaranhaoSao LuísBrazil Hydro Alunorte Rodovia PA–481km 12Distrito de MurucupiCEP68447-000BarcarenaParaBrazil

Landscape changes have caused the decline of biodiversity and affected the integrity of aquatic *** this study,we assessed the influence of industrialization associated with urban development on aquatic environments and the biodiversity of semiaquatic bugs(Gerromorpha)at different scales(water quality,habitat,and landscape).Using the simple buffer method,we evaluated nine streams assessing water quality variables,habitat structure,and linear features(radius¼300 m,length¼600 m)for the percentage of land use and land *** results found that species composition of Gerromorpha was mainly affected by primary forest cover,habitat integrity,leaves substrate,and water temperature(29%explanation),and the species richness was mostly influenced by the habitat integrity index(HII)and phosphorus *** model that best explained the variation in species richness showed a positive relationship with phosphorus concentrations and HII(43%variation).Therefore,our results show that those human activities are the main factors altering aquatic biodiversity from local to regional ***,the retention of riparian forests–even in urban and industrialized areas–can maintain the diversity of semiaquatic insect species by providing suitable environments for the habitat,feeding,and reproductive requirements of these aquatic ***,our results also show that the management of riparian vegetation in urban areas and industrial complexes promotes aquatic biodiversity conservation in regions under development in the Amazon.

关键词： Aquatic insects Biodiversity conservation Gerromorpha Stream conservation Land use

Modeling of unidirectional blood flow in microvessels with effects of shear-induced dispersion and particle migration

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Applied Mathematics and Mechanics(English Edition) 2022年第10期43卷 1585-1600页

作者： G.ROURE F.R.cunha Laboratory of Microhydrodynamics and Rheology Department of Mechanical EngineeringUniversity of BrasíliaBrasília70910900Brazil Department of Chemical and Biological Engineering University of Colorado BoulderBoulder803090596USA

A cell-free layer,adjacent to microvessel walls,is present in the blood flow in the microcirculation *** layer is of vital importance for the transport of oxygen-saturated red cells to unsaturated *** this work,we first discuss the physics of formation of this cell-free layer in terms of a balance between the shear-induced dispersion and particle *** this end,we use high-viscosity drops as prototypes for cells,and discuss our results in terms of physical parameters such as the viscosity ratio and the capillary *** also provide a short-time analysis of the transient drift-dispersion equation,which helps us better explain the formation process of the cell-free ***,we present models for investigating the blood flow in two different scales of *** investigating the blood flow in venules and arterioles,we consider a continuous core-flow model,where the core-flow solution is considered to be a Casson fluid,surrounded by a small annular gap of Newtonian plasma,corresponding to the cell-free *** also propose a simple model for smaller vessels,such as capillaries,whose diameters are of a few *** this lower-bound limit,we consider a periodic configuration of aligned,rigid,and axi-symmetric cells,moving in a Newtonian *** this regime,we approximate the fluid flow using the lubrication *** intrinsic viscosity of the blood is theoretically predicted,for both the lower and upper-bound regimes,as a function of the non-dimensional vessel diameter,in good agreement with the previous experimental *** compare our theoretical predictions with the experimental data,and obtain qualitatively good agreement with the well-known Fåhræus-Lindqvist effect.A possible application of this work could be in illness diagnosis by evaluating changes in the intrinsic viscosity due to blood abnormalities.

关键词： theory flow dispersion

Comparison of Classical Models for Evaluating the Heat Requirements of Olive(Olea europeae L.) in Portugal

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Journal of Integrative Plant Biology 2006年第6期48卷 664-671页

作者： Helena Ribeiro Mário cunha Ilda Abreu Autonomous Section of Agricultural Sciences Faculty of Sciences University of Porto4485-661 VairaoPortugal Department of Botany Faculty of SciencesUniversity of Porto1191-4150 PortoPortugal Institute of Agricultural Sciences and Technology 4485-661 VairaoPortugal Department of Botany Faculty of Sciences University of Porto1191-4150 PortoPortugal Institute for Molecular and Cell Biology 823-4150 PortoPortugal

The aim of the present study was to compare the accuracy and reproducibility of six statistical models for the calculation of olive （Olea europeae L.） heat requirements to trigger the onset of flowering in three Portuguese regions： Reguengos de Monsaraz, Valenga do Douro, and Braga. Other alms were to ascertain the date on which the heat-accumulation period started and the threshold temperatures above which the development of reproductive structures starts in olives. The starting and peak dates for the regional O. europeae flowering season were estimated by monitoring airborne pollen from 1998 to 2004 using ＂Cour＂- type samplers. The threshold temperature values calculated for the three regions were very similar （9.0 ℃ for Valenca do Douro, 9.2 ℃ for Reguengos de Monsaraz, and 9.7 ℃ for Braga）. The accumulated daily mean temperature model had less interannual and inter-regional variation, showing best predictive results for 2004, with absolute differences between the observed and predicted dates of 4 d in Reguengos de Monsaraz and 2 d In Valenca do Douro and Braga for the onset of flowering date and of 2 d In Reguengos de Monsaraz, 7 d in Valenca do Douro, and 4 d in Braga for peak flowering dates. This model was the most accurate, reproducible, and operational to calculate heat requirements for olives to flower, with an average mean temperature accumulation of 1 446 ℃ In Reguengos, 1 642 ℃ in Valenga do Douro, and 1 703℃ In Braga to reach the onset of flowering. The best initial date for this accumulation was 1 January.

关键词： flowering season heat requirements olives pollen Portugal

Unveiling DNA methylation in Alzheimer’s disease:a review of array-based human brain studies

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Neural Regeneration Research 2024年第11期19卷 2365-2376页

作者： Victoria cunha Alves Eva Carro Joana Figueiro-Silva Neurodegenerative Diseases Group Hospital Universitario 12 de Octubre Research Institute(imas12)MadridSpain Network Center for Biomedical Research Neurodegenerative Diseases(CIBERNED)MadridSpain PhD Program in Neuroscience Autonoma de Madrid UniversityMadridSpain Neurotraumatology and Subarachnoid Hemorrhage Group Hospital Universitario 12 de Octubre Research Institute(imas12)MadridSpain Neurobiology of Alzheimer’s Disease Unit Functional Unit for Research Into Chronic DiseasesInstituto de Salud Carlos IIIMadridSpain Institute of Medical Genetics University of ZurichZurichSwitzerland Department of Molecular Life Science University of ZurichZurichSwitzerland

The intricacies of Alzheimer’s disease pathogenesis are being increasingly illuminated by the exploration of epigenetic mechanisms,particularly DNA *** review comprehensively surveys recent human-centered studies that investigate whole genome DNA methylation in Alzheimer’s disease *** examination of various brain regions reveals distinctive DNA methylation patterns that associate with the Braak stage and Alzheimer’s disease *** entorhinal cortex emerges as a focal point due to its early histological alterations and subsequent impact on downstream regions like the ***,ANK1 hypermethylation,a protein implicated in neurofibrillary tangle formation,was recurrently identified in the entorhinal ***,the middle temporal gyrus and prefrontal cortex were shown to exhibit significant hypermethylation of genes like HOXA3,RHBDF2,and MCF2L,potentially influencing neuroinflammatory *** complex role of BIN1 in late-onset Alzheimer’s disease is underscored by its association with altered methylation *** the disparities across studies,these findings highlight the intricate interplay between epigenetic modifications and Alzheimer’s disease *** research efforts should address methodological variations,incorporate diverse cohorts,and consider environmental factors to unravel the nuanced epigenetic landscape underlying Alzheimer’s disease progression.

关键词： Alzheimer’s disease ANK1 BIN1 DNA methylation epigenome-wide association studies HOXA3 MCF2L RHBDF2

Evaluation of ancestry from human skeletal remains: a concise review

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Forensic Sciences Research 2020年第2期5卷 89-97页

作者： Eugenia cunha Douglas HUbelaker National Institute of Legal Medicine and Forensic Sciences LisbonPortugal Laboratory of Forensic Anthropology Centre for Functional EcologyDepartment of Life SciencesUniversity of CoimbraCoimbraPortugal Department of Anthropology National Museum of Natural HistorySmithsonian InstitutionWashingtonDCUSA

Ancestry assessment represents a major component of forensic anthropological analysis of recovered human *** of ancestry,together with other aspects of the biological profile,can help narrow the search of missing persons and contribute to eventual positive *** information can prove useful to authorities involved in the identification and investigative process since many lists of missing persons have a reference to this *** research has strengthened available methodologies involving metric,non-metric morphological as well as chemical and genetic *** review addresses the new anthropological techniques that are now available,as well as the complex historical context related to ancestry evaluation.

关键词： Forensic sciences forensic anthropology ancestry estimation skeletal remains

G protein-coupled receptor 37(GPR37) emerges as an important modulator of adenosinergic transmission in the striatum

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Neural Regeneration Research 2019年第11期14卷 1912-1914页

作者： Xavier Morato Rodrigo A. cunha Francisco Ciruela Unitat de Farmacologia Departament Patologia i Terapeutica ExperimentalFacultat de MedicinaInstituto de Investigacion Biomedica de Bellvitge (IDIBELL)Universitat de BarcelonaL’Hospitalet de LlobregatBarcelonaSpainInstitut de NeurocienciesUniversitat de BarcelonaBarcelonaSpain (Morato X Ciruela F) Center for Neuroscience and Cell Biology (CNC)-Center for Neurosciences and Cell BiologyUniversity of CoimbraCoimbraPortugalFaculty of MedicineUniversity of CoimbraCoimbraPortugal

G protein-coupled receptor 37 (GPR37), also known as parkin associated endothelin-like (Pael) receptor, is an orphan G protein- coupled receptor, which suffers a defective parking ubiquitination in autosomal recessive Parkinson’s disease promoting its endoplasmic reticulum aggregation and stress, neurotoxicity and neuronal death (Takahashi and Imai, 2003). Interestingly, we have demonstrated previously that GPR37 heteromerizes with adenosine A2A receptor (A2AR) in the striatum (Morato et al., 2017;Sokolina et al., 2017).

关键词： G protein-coupled receptor 37(GPR37) important modulator adenosinergic transmission

Siderophore-Producing Rhizobacteria as a Promising Tool for Empowering Plants to Cope with Iron Limitation in Saline Soils:A Review

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Pedosphere 2019年第4期29卷 409-420页

作者： Maria J.FERREIRA Helena SILVA Angela cunha Biology Department and Centre for Environmental and Marine Studies(CESAM) University of Aveiro Campus de Santigo

Iron(Fe) bioavailability to plants is reduced in saline soils;however, the exact mechanisms underlying this effect are not yet completely understood. Siderophore-expressing rhizobacteria may represent a promising alternative to chemical fertilizers by simultaneously tackling salt-stress effects and Fe limitation in saline soils. In addition to draught, plants growing in arid soils face two other major challenges: high salinity and Fe deficiency. Salinity attenuates growth, affects plant physiology, and causes nutrient imbalance,which is, in fact, one of the major consequences of saline stress. Iron is a micronutrient essential for plant development, and it is required by several metalloenzymes involved in photosynthesis and respiration. Iron deficiency is associated with chlorosis and low crop productivity. The role of microbial siderophores in Fe supply to plants and the effect of plant growth-promoting rhizobacteria(PGPR) on the mitigation of saline stress in crop culture are well documented. However, the dual effect of siderophore-producing PGPR, both on salt stress and Fe limitation, is still poorly explored. This review provides a critical overview of the combined effects of Fe limitation and soil salinization as challenges to modern agriculture and intends to summarize some indirect evidence that argues in favour of siderophore-producing PGPR as biofertilization agents in salinized soils. Recent developments and future perspectives on the use of PGPR are discussed as clues to sustainable agricultural practices in the context of present and future climate change scenarios.

关键词： aridity bioavailability biofertilizer Fe deficiency high salinity plant growth-promoting rhizobacteria(PGPR) saline stress soil salinization

Analytic Results in the Position-Dependent Mass Schrdinger Problem

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Communications in Theoretical Physics 2013年第12期60卷 642-650页

作者： M.S.cunha H.R.Christiansen Grupo de Física Teórica State University of Cear(UECE) State University Vale do Acaraú

We investigate the Schr6dinger equation for a particle with a nonuniform solitonic mass density. First, we discuss in extent the （nontrivial） position-dependent mass V（x） = 0 case whose solutions are hypergeometric functions in tanh2 x. Then, we consider an external hyperbolic-tangent potential. We show that the effective quantum mechanical problem is given by a Heun class equation and find analytically an eigenbasis for the space of solutions. We also compute the eigenstat, es for a potential of the form V （x） = Vo sinh2 z.

关键词： Schr6dinger equation position-dependent mass Heun equation

Cytomegalovirus Hepatitis in Immunocompetent and Immunocompromised Hosts

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Journal of Clinical and Translational Hepatology 2021年第1期9卷 106-115页

作者： Teresa Da cunha George Y.Wu Department of Medicine Division of Gastroenterology-HepatologyUniversity of Connecticut Health CenterFarmingtonCTUSA Department of Medicine University of Connecticut Health CenterFarmingtonCTUSA

Human cytomegalovirus (HCMV) infection is common and affects between 40–100% of the worldwide population. However, the majority of cases are asymptomatic and when severe disease occurs, it is usually restricted to immunocompromised patients. Liver involvement by HCMV differs significantly, accordingly to the immune status of the host. In immunocompromised patients, particularly liver transplant patients, it often causes clinically significant hepatitis. On the other hand, in immunocompetent patients, HCMV hepatitis requiring hospitalization is extremely rare. This review aims to appraise studies regarding the pathophysiology of HCMV hepatitis, including mechanisms of latency and reactivation and its contribution to disease development, clinical presentation, diagnostic modalities and treatment, with a focus on comparing different aspects between immunocompromised and immunocompetent hosts.

关键词： CMV hepatitis Cytomegalovirus hepatitis Cytomegalovirus hepatitis immunocompetent Cytomegalovirus hepatitis immunocompromised