检索结果-南通市图书馆

ENSO impacts on litter stocks and water holding capacity in secondary forests in eastern Amazonia

Journal of Forestry Research 2024年第1期35卷 83-89页

作者： Julia Isabella de Matos Rodrigues Walmer Bruno Rocha Martins Victor Pereira de Oliveira Myriam Suelen da Silva Wanzerley Hélio Brito dos Santos Júnior francisco de assis Oliveira Graduate Program in Forestry Sciences Av.Presidente Tancredo Neves2501BelémPará66077-530Brazil Federal Rural University of Amazonia Av.Presidente Tancredo Neves2501BelémPará66077-530Brazil Federal Rural University of Amazonia Tv.Pau-AmareloCapitão PoçoPará68650-000Brazil National Institute of Amazonia Research Av.Constelação Cruzeiro do SulManausAmazonas 69060-062Brazil

Among the impacts of climate change,there is the intensification of phenomena such as the El Niño South-ern Oscillation(ENSO)responsible for El Niño and La Niñ***,understanding their effects on the functional pro-cesses of forests is ***,this study evaluated the effects of ENSO on litter stock and water holding capac-ity(WHC)in a successional forest in eastern *** occurred in periods with the most rainfall in El Niño(2019)and least in La Niña(2021)*** permanent plots were used to sample *** effects were evident for WHC,higher during El Niñ***,this influence was not clear for litter,as only in the rainy season effects were *** was a positive correlation of WHC with precipitation and humidity,while litter stocks were negatively correlated with temperature and wind *** the subject of this study requires long-term assessments,preliminary results suggests that,depending on the intensity of ENSO,forest functional processes can be strongly impacted and *** conclusion reinforces warnings by the scientific community about the impacts of climate change on the maintenance of litter stocks,decomposition and,consequently,the biogeochemical cycle and essential ecosystem services for the maintenance of Amazonia *** need to develop long-term research to understand the effects of climatic change on litter stocks and water holding capacity is highlighted,especially in Amazonia.

关键词： Seasonality Climate change Succession ecosystem Biogeochemical cycle Amazonia biodiversity

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

Cryptococcus and Cryptococcosis in Human and Animal Model:An Overview

引用

Advances in Microbiology 2020年第4期10卷 180-193页

作者： Eriques Goncalves da Silva Diniz Pereira Leite-Jr Margareth Léa da Silva Maia Sandra Marilia de Souza Silva francisco de assis baroni Marcos Ereno Auler Amanda Latércia Tranches Dias Débora Moreira Rinaldo Ferreira Gandra Regina Teixeira Barbieri Ramos André Gasparetto Elisangela Santana de Oliveira Dantas Valéria Tognato Costa Claudete Rodrigues Paula School of dentistry University of Sao Paulo(USP)Sao PauloBrazil Specialized Medical Mycology Center Federal University of Mato Grosso(UFMT)CuiabáBrazil Federal University of ABC(UFABC) Santo AndréBrazil Rural Federal University of Rio de Janeiro(UFRRJ) Rio de JaneiroBrazil Faculty of Pharmacy University of the Western Center of Paraná(UNICENTRO)Campus CedetegGuarapuavaBrazil Federal University of Alfenas(UNIFAL) AlfenasBrazil University Hospital State University of West Paraná(UNIOESTE)CascavelBrazil department of dentistry State University of Maringa(UEM)MaringáBrazil Institute of Biosciences Federal University of Mato Grosso(UFMT)CuiabáBrazil

Background: Yeasts from the genus Cryptococcus (species C. neoformans and C. gattii) are opportunistic pathogens that afflict humans with low immunity caused by diseases such as AIDS or by the usage of immunosuppressive drugs. It is a fatal disease that has been studied around the whole world and its most fatal form is the brain cryptococcosis. Purpose: The present review describes the disease from pathogen isolation, the various clinical presentations of the disease, the most important virulence factors of yeast in human and animal model and their clinical issues. Methods: On this review, several published studies about the disease are presented. Results: Numerous researches have been done worldwide in order to find a kind of therapy that is more effective against the disease. Amphotericin B, in all forms is still the drug of choice in the treatment of the cryptococcosis. Fluconazole, as well as voriconazole in combination with amphotericin B, is recommended in the cases of treatment failure. Conclusion: This study presented has elucidated a little more about the disease. Further studies should be conducted to find more diagnoses that are accurate as well as more effective treatments for eradicating the disease. In this study, the bibliographic survey makes reference to the world literature;with regard to ecology, taxonomy, mains factors related to virulence, the clinical manifestations, the action of antifungal drugs and histopathological analysis used in an animal model, were the objectives deleterious aspects of this study, thus informing, in a simple way, the importance of this microorganism for research and researchers working with this global disease, called Cryptococcosis.

关键词： Cryptocococcus Cryptococcosis Animal Model Cryptococcus neoformans Cryptococcusgattii Virulence Related Factors

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

Characterization of Clinical and Environmental Isolates of <i>Cryptococcus neoformans</i>/<i>Cryptococcus gattii</i>Complex Maintained in Yeast Culture Collection in São Paulo, Brazil

引用

Open Journal of Epidemiology 2018年第2期8卷 76-92页

作者： Pedro Henrique Magalh&atilde es Cardoso Bosco Christiano Maciel da Silva Jairo Ivo dos Santos Rennan Luiz Oliveira dos Santos Diniz Pereira Leite Jú nior Marcos Ereno Auler Luciana da Silva Ruiz Eriques Gonç alves da Silva Dé bora Moreira Carina Domaneschi francisco de assis baroni Marcia de Souza Carvalho Melhem Marilena dos Anjos Martins Claudete Rodrigues Paula Faculty of Veterinary Medicine and Zootechny-FMVZ-USP University of S&#227 o Paulo (USP) S&#227 o Paulo Brazil Faculty of Medicine/FMUSP University of S&#227 o Paulo (USP) S&#227 o Paulo Brazil Federal University of Santa Catarina (UFSC) Florian&oacute polis Brazil Faculty of dentistry University of S&#227 o Paulo (FOUSP) S&#227 o Paulo Brazil Faculty of Medicine Federal University of Mato Grosso (UFMT) Cuiab&aacute Brazil Faculty of Pharmacy University of the Western Center of Paran&aacute (UNICENTRO) Guarapuava Brazil Institute Adolfo Lutz (IAL) Bauru Brazil Federal Rural University of Rio de Janeiro (UFRRJ) Serop&eacute dica Brazil Institute Adolfo Lutz (IAL) S&#227 o Paulo Brazil

Objective: As isolates of Cryptococcus are frequently kept collection stocks in institutions, sometimes without proper characterization, we sought to determine the genotype profiles, protease and phospholipase activities “in vitro” and the susceptibility testing for azoles and amphotericin B. Methodology: 84 isolates from several regions of Brazil (40 samples from clinical origin and 44 isolates from environmental origin) were maintained at the microorganism’s bank of the Biomedical Science Institute (ICB-USP) of the São Paulo University, in São Paulo, Brazil. This isolates was submitted fungal strains determination, DNA extraction and purification, determination of genotype by URA5 gene RFLP of CGB-positive isolates, protease and phospholipase activity and susceptibility to antifungals. Results: Of six CGB positive isolates tested by RFLP-PCR, only four presented a genomic profile consistent C. gattii species (VGII), while two other were C. neoformans (VNI and VNIII), indicating the existence of canavanine-resistante C. neoformans isolates in the culture collections. The clinical isolates secreted higher levels of phospholipase and environmental isolates but no differences were observed for the protease levels. Almost all isolates were sensible to azoles and amphotericin B. Conclusion: We point out in this research the existence of C. neoformans strains resistant to canavanine and intrinsic characteristic of C. gatti. These results demonstrate the importance to perform a detailed characterization of isolates kept in culture collections.

关键词： Cryptococcus Complex Genotyping Protease Phospholipase Etest Culture Collection

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

Impacts of land use and land cover changes on hydrological processes and sediment yield determined using the SWAT model

引用

International Journal of Sediment Research 2022年第1期37卷 54-69页

作者： Edivaldo Afonso de Oliveira Serr?o Madson Tavares Silva Thomás Rocha Ferreira Lorena Concei??o Paiva de Ataide Cleber assis dos Santos Aline Maria Meiguins de Lima Vicente de Paulo Rodrigues da Silva francisco de assis Salviano de Sousa denis José Cardoso Gomes Academic Unit of Atmospheric Sciences Federal University of Campina Grande department of Physics Center for Natural and Exact Sciences Federal University of Santa Maria Institute of Technology Civil Engineering Graduate Program Federal University of Pará Earth System Science Center National Institute of Space Research Institute of Geosciences Federal University of Pará

Land use and land cover (LULC) changes strongly affect local hydrology and sediment *** current study focused on a basin in the Brazilian Amazon and had the following three objectives:(1) to perform an effective diagnosis of flow and sediment yield,(2) to evaluate the impacts of LULC changes over the last 40 years on the hydro-sedimentological variables,and (3) to investigate the impacts of the possible trends or breaking points in the flow,surface runoff,and sediment yield *** Soil and Water Assessment Tool (SWAT) model validation showed that the simulated results were consistent with the data measured in the dynamic reproduction of flow ***,changes in LULC altered surface runoff,sediment yield,and flow according to the Mann-Kendall and Pettitt non-parametric *** was also observed that the sub-basins in which pastureland is predominant are more susceptible to increased surface runoff and sediment *** to trend and homogeneity tests,these sub-basins had break points in the time series of these *** the other hand,in the sub-basins whose land cover is predominantly forest,the time series is homogeneous and *** current study highlighted the impacts that 40 years of LULC changes in an Amazonian basin had on hydro-sedimentological variables,which,in turn,can play an important role in changing the hydrological cycle,consequently these changes can also impact diverse human activities in the region,such as agribusiness,livestock,energy production,food security,and public water ***,it is concluded that the SWAT model is a good estimator of hydro-sedimentological processes in Amazonian basins and can be used by decision makers in the management of water and environmental resources.

关键词： Hydrological modeling Sediment yield Amazon basin SWAT model

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

Out of Sight, Out of Mind, Right? Not in COVID-19 Shock or Anaerobic and Exhaustive Shock versus Septic Shock Dilemma That Means to Live or Die. Emergency Attention and a Necessity of Trials

引用

Open Journal of Emergency Medicine 2022年第1期10卷 19-47页

作者： Luiz Gonzaga francisco de assis Barros D’Elia Zanella Infectious Diseases department (MI-HSPE) Hospital do Servidor Público do Estado de S&#227 o Paulo S&#227 o Paulo Brazil PhD Program in Allergy and Immunopathology School of Medicine University of S&#227 o Paulo S&#227 o Paulo Brazil Emergency and Urgency department University Hospital of University of S&#227 o Paulo Butant&#227 S&#227 o Paulo Brazil

Background: COVID-19 brought challenges that did not end after a two-year pandemic. From more straightforward changes in habits to studying to understand the enigmatic parasite-host relationship, we can better manage the patient infected with SARS-CoV-2 even with a vaccine full of doubts and antivirals that do not correctly cover the viral period. SARS-CoV-2 brought the chronic inflammation now called “The Long COVID-19 Syndrome” (LCS), something still little talked about, but we already see deaths due to non-identification of this inflammatory syndrome that can lead to shock. Theory: LCS Shock is due to a long period of metabolic stress, reflecting the shift from inflammation to oxidative stress and innate immunity, and does not respond to antimicrobials, as its main component is inflammatory, although there may be conjoined bacterial translocation. Thus, we are losing patients to a new syndrome confused with sepsis and septic shock. While septic shock (SS) responds to antimicrobials, Inflammatory Shock (ISc) does not respond to antimicrobials alone, requiring high doses of corticosteroids. Review: This study shows that we need to differentiate SS and ISC, as the treatment is different. The review shows that Lactate, LDH and the presence of new/recent cardiac changes and bradycardia in the face of a status where there should be tachycardia as the usual response can differ ISC from SS. Maybe the main responsible for high LDH is Warburg Effect. Conclusion: We have a dilemma that requires clinical studies that routinely match high doses of corticosteroids (until there is something better to be done) and bring laboratory and imaging differences to diagnose SS vs ISc better.

关键词： Acute Respiratory Distress Syndrome Cardiovascular System Critical Care COVID-19 Lactate

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

Small river basin and estuarine sediment fluxes:The magnitude necessary for coastal dispersion and siltation effects on a coral reef

引用

International Journal of Sediment Research 2019年第6期34卷 591-599页

作者： Paula Sagili?o Isacksson Eduardo Guilherme Gentil de Farias francisco José Dias Roberto Nascimento de Farias Anandra Machado francisco de assis Esteves Mauricio Mussi Molisani Instituto de Biodiversidade e Sustentabilidade (NUPEM/UFRJ) Universidade Federal do Rio de Janeiro Grupo de Gestao Ecologia e Tecnologia Marinha (GTMar)Departamento de Engenharia de Pesca a Ciencias Biologicas (DEPB)Universidade do Estado de Santa Catarina (UESC) Laboratorio de Hidrodinamica Costeira Estuarina e de Aguas Interiores (LHiCEAI)Departamento de Oceanografia e Limnologia (DEOLI)Universidade Federal do Maranhao (UFMA) Programa de Pos-Graduacao em Ciencias Ambientais e Conservacao-PPGCIAC Instituto de Biodiversidade e Sustentabilidade (NUPEM/UFRJ)

Increasing continental suspended sediment influx to coral reefs is an example of land-sea coupling that requires the identification of sources,magnitude of transport,and controlling *** Brazil,a small coastal basin(Macae River) was identified as a source of suspended sediment to a coral reef on the coast of Cape Armacao dos *** suspended sediment loads were measured at the basin as were fluxes within the estuary and towards the coast during eight tidal *** load and yield from this basin were typical of small coastal basins,showing high to moderate slopes and transitional land ***,the magnitude of the river loads was lower than the sediment transport within the estuary,indicating that the estuary amplifies river fluxes and sustains the transference of suspended sediment alongshore to the coral ***,the estuary displays both suspended particle retention and export capacity and,therefore,fluxes to the coast and the coral reef occur as episodic events.

关键词： Suspended matter Watershed Mass-balance budget Campos Basin

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

Successful Treatment with ¹⁷⁷Lutetium-Dotatate and Maintenance Octreotide in a Patient with Esthesioneuroblastoma with Central Nervous System Invasion: Case Report and Review of the Literature

引用

International Journal of Otolaryngology and Head & Neck Surgery 2023年第1期12卷 8-20页

作者： Gabriela Dombrowski Laura Fernandes Ferreira Dalcin francisco assis Coelho Patricia Massucheto Ledesma Daniel Herchenhorn department of Clinical Oncology Instituto D’Or de Pesquisa e Ensino Rio de Janeiro Brazil Clínica de Diagnóstico por Imagem CDPI DASA Instituto D’Or de Pesquisa e Ensino Rio de Janeiro Brazil Clínica de Medicina Nuclear Villela Pedras Clínica de Diagnóstico por Imagem CDPI DASA Rio de Janeiro Brazil

This article presents a case of a patient with relapsed esthesioneuroblastoma (ENB), an aggressive rare tumor that arises from the specialized sensory epithelial olfactory cells in the skull base area, which was initially treated with endoscopic surgery, followed by adjuvant radiotherapy. After local relapse, new surgical approaches and subsequent lines of platin-based chemotherapy were performed. A PET-CT with 68GALIUM DOTATATOC (PET-DOTATOC) showed intense uptake of disease, compatible with the presence of somatostatin receptors, in the face, nodes, liver, bones, and meningeal area. Treatment with 4 cycles of 177Lutetium-Dotatate was performed, followed by maintenance octreotide, with a major radiological and clinical response that is lasting more than 1 year after treatment. This article describes a rare case of a skull-base tumor, with multiple recurrences, in which disease control was achieved with a targeted Peptide Receptor Radionuclide Therapy (PRRT) with 177Lutetium-Dotatate, and discusses factors that could influence the incorporation of this form of therapy. Previous case reports proved the potential efficacy of this therapy usually given for low-grade neuroendocrine tumors and will be carefully reviewed.

关键词： Esthesioneuroblastoma Olfactory Neuroblastoma Peptide Receptor Radionuclide Therapy PRRT 177Lutetium

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 Dog as a Risk Factor in Transmission of Visceral Leishmaniasis: A Review

引用

Advances in Infectious Diseases 2012年第2期2卷 37-47页

作者： francisco assis Lima Costa department of Clinical Veterinary Medicine and Surgery Federal University of Piaui Teresina Brazil

Visceral leishmaniasis (VL) is a serious public health problem in Brazil and worldwide. despite the euthanasia of dogs serologically positive, such action has not solved the endemic in Brazil. A risk area for VL involves the presence of the vector, the occurrence of canines and the record of human cases. The factors that have favored the persistence and spread of VL in Brazil are related to the predatory action of man on the environment, to the migratory movements and rural exodus, and a close coexistence of man and animals. Thus considering the epidemiological chain of VL, one fact seems clear: we do not know yet the true extent of the participation of the dog in the infectious cycle of VL. The clinical disease is an important indicator of the extent of the problem in an endemic area. The immunological events are complex and involve resistance and susceptibility to canine visceral leishmaniasis (CVL). One aspect in CVL is that many symptomatic dogs underwent xenodiagnosis not infect the vector. In such cases the pattern recognition receptors CD11b+, TLR2+, and NO present higher values for dogs with results in immunohistochemistry of skin and xenodiagnosis negative (IMH-/XENO-) than dogs with immunohistochemistry in skin and xenodiagnosis positive (IMH+/XENO+), suggesting that innate immunity modulates the competence of the dog to infect the vector. The organic response in CVL varies from individual to individual and within the same individual, with a strong evidence of being organ-specific. Only 20% of asymptomatic dogs have parasites in the skin and 15% are able to recover from clinical signs and eliminate the parasites spontaneously. In this review, we analyze the epidemiology of visceral leishmaniasis and clinical, immunological and pathological conditions that can contribute to understanding the role of dogs in transmission of visceral leishmaniasis.

关键词： Visceral Leishmaniasis Dog Epidemiology Pathology

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

Pollen of Bauhinia *** Phanera Lour.(Leguminosae-Caesalpinioideae)from the Brazilian Caatinga

引用

American Journal of Plant Sciences 2012年第7期3卷 909-920页

作者： francisco de assis Ribeiro dos Santos Danovan de Matos Novaes Luciano Paganucci de Queiroz Programa de Pós-Graduacao em Botanica Universidade Estadual de Feira de SantanaFeira de SantanaBahiaBrazil

A study of pollen morphology, in species of the genera Bauhinia and Phanera (Leguminosae-Caesalpinioideae) which occur in the Brazilian caatinga, is presented. The pollen was examined using light and scanning electron microscopy. Samples were prepared by the KOH method;non-treated pollen grains were examined by scanning electron microscopy. Pollen grains in Bauhinia species (11) are colpate, but porate in B. cheilantha and B. subclavata. All four species of Phanera present colporate pollen grains;P. outimouta is the only to have syncolporate pollen grains. Species of both genera present heteromorphism in the number of apertures. Excepting P. outimouta whose pollen grains are psilate, all species in the two genera present supratectal processes (gemmae/clavae), however the exine in the two genera are dif- ferent–semitectate, reticulate in Bauhinia species, and tectate, rugulate (or psilate) in Phanera ones. Pollen characters support the segregation of Phanera from Bauhinia.

关键词： Pollen Flora Leguminosae Cercideae Taxonomy

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

Aquatic Macrophytes detritus Quality and Sulfate Availability Shape the Methane Production Pattern in a Dystrophic Coastal Lagoon

引用

American Journal of Plant Sciences 2015年第10期6卷 1675-1684页

作者： André Luiz dos Santos Fonseca Claudio Cardoso Marinho francisco de assis Esteves Instituto Federal de Educaç&atildeo Ciência e Tecnologia do Rio de Janeiro Rua Carlos Wenceslau Rio de Janeiro Brasil Laboratório de Limnologia Departamento de Biologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brasil NUPEM—Universidade Federal do Rio de Janeiro Macaé Brasil

Aquatic macrophytes usually show high productivity rate, especially in shallow environments, and may constitute the main source of organic matter to these ecosystems. The coastal lagoons are shallow environments that typically present a broad colonization by aquatic macrophytes. The organic matter derived from aquatic macrophytes consists of detritus and root exudates, from live plants. Methanogens are microorganisms that use labile organic matter (e.g. acetate) in the metabolism, releasing methane (CH4) as an end product. Assessing the influence of aquatic macrophytes on methanogenesis is fundamental to understanding the carbon cycle in shallow environments, such as coastal lagoons. A peculiarity of coastal lagoons that may also influence the methanogenesis is its proximity to the sea, providing the entrance of sulfate in the environment. The methanogenesis can be inhibited by the sulfate reduction when there is sulfate availability sulfate. In this context, we aimed to analyze the methane production in an aquatic macrophyte stand and in the limnetic region of a coastal lagoon, assessing the influence of quantity and quality of organic carbon and sulfate availability on methane production in the sediment profile. We observe that the presence of aquatic macrophytes benefits the methanogenesis, not only by detritus accumulation, but particularly by the release of root exudates from the living plants. The variation in quantity and quality of organic carbon is the main factor that controls the range and shape of the methane production curves. The availability of sulfate presents probably a secondary role, being important when the organic matter is not sufficient for the occurrence of methanogenesis and sulfate reduction simultaneously.

关键词： Methanogenesis Sediment Root Exudates Competition Shallow Environments

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：