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Relationship between Physical and Chemical Soil Attributes and Plant Species Diversity in Tropical Mountain Ecosystems from Brazil

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j.urnal of Mountain Science 2014年第4期11卷 875-883页

作者： Ferna de CARVALHO Edward Luis GODOY Francy j. G. LISBOA Fatima Maria de Souza MOREIRA Francisco Adriano de SOUZA ricardo Luis Louro BERBARA G Wilson FERNES Laboratory of Evolutionary Ecology and Biodiversity Department of Geral Biology Institute of Biology Sciences Federal University of Minas Gerais Belo Horizonte MG 30161-901 P.O. Box 486 Brazil Department of Biology Microbiology and Biological Processes Department of Soil Science Federal University of LavrasLavras Minas Gerais 37200-000 P.O.Box 3037 Brazil Department of Biological Sciences Ferderal University of S?o Jo?o Del Rei S?o Jo?o del-Rei Minas Gerais 36307-352Brazil Laboratory of Soil Biology Department of Soil Science Federal Rural University of Rio de Janeiro Seropédica Rio de Janeiro 23890-000 Brazil Embrapa Maize and Sorghum Center for Applied Biology Rod. MG 424 KM 45 Caixa Postal Sete Lagoas Minas Gerais 35701-970 P.O. Box 285 Brazil

Although the high diversity of plant species in the rupestrian fields has been primarily attributed to the existence of a set of distinct habitats, few studies support this assertion. The present study aimed to further investigate the relationship between physical and chemical attributes of soils with the diversity of plant species in this unique ecosystem. The rupestrian field is a unique vegetation formation that covers some of the southeastern Brazilian mountains in the transition of the Atlantic rain forest and the Cerrado(savanna). Different habitats occur according to soil characteristics(e.g., presence of rocks, sand, fertility, hydrology, etc.). These attributes ultimately influence the vegetation that is highly adapted to the harsh edaphic and climatic mountain conditions. Five distinct habitats were studied by us: rocky outcrops, peat bogs, sandy bogs, quartz gravel fields, and "cerrado"(savanna). A floristic survey indicated that four families are found at greater frequency: Poaceae, Asteraceae, Cyperaceae, and Leguminosae. The greatest diversity of plant species was found in the rocky outcrops habitat, followed by cerrado, peat bog, quartz gravel grassland, and sandy bogs, respectively. The main difference in the floristic composition among these habitats was related to the dominant species. Trachypogon spicatus(Poaceae) was the most dominant species in the rocky outcrops, Axonopus siccus(Poaceae) in the peat bogs, Lagenocarpus rigidus(Cyperaceae) in the sandy bogs, Schizachyrium tenerum(Poaceae) in the cerrado, while Vellozia sp. 8(Velloziaceae) dominated the vegetation in the quartz gravel grassland. This study demonstrated that physical and chemical soil properties strongly related the diversity of plant species occurring in the different habitats of rupestrian fields.

关键词：植物物种多样性山地生态系统土壤特性热带雨林属性化学物理巴西

Pharmacological strategies in extracorporeal membrane oxygenation weaning failure: a call to action

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Emergency and Critical Care Medicine 2023年第2期3卷 43-45页

作者： Francisco j.González-Ruiz Francisco M.Baranda-Tovar Luis A.Baeza-Herrera j.séD.Utrilla-Álvarez ricardo E.Quirázco-Cordova Gustavo Roj.s-Velasco Department of Cardiovascular Critical Care National Institute of Cardiology“Dr.Ignacio Chávez”Mexico CityMexico National Institute of Cardiology.j.an Badiano 1 Belisario Dominguez Secc 16Tlalpan14080Mexico CityMexico

Extracorporeal membrane oxygenation has emerged as a viable alternative for stabilizing and improving critically ill patients in acute cardiovascular ***,the weaning stage has been associated with a high morbidity and mortality *** makes searching for strategies that reduce failure in this final process *** a new approach must be tried and included in our protocols,seeking the patient’s well-being at all *** this article,the authors discuss their point of view regarding potential pharmacological alternatives and the mechanism of action involved,which could decrease the mortality associated with this therapeutic.

关键词： β-Blockers Extracorporeal membrane oxygenation Inodilators Mechanical circulatory support Pharmacological strategies

Fractional Square Functions and Potential Spaces, Ⅱ

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Acta Mathematica Sinica,English Series 2015年第11期31卷 1759-1774页

作者： j.rge j.BETANCOR j.an C.FARIA Lourdes RODRIGUEZ-MESA ricardo TESTONI j.s L.TORREA Departamento de Anlisis Matemtico Universidad de La Laguna Campus de Anchieta Avda.Astrofísico Francisco Snchez 38271 La Laguna (Sta.Cruz de Tenerife) Spain Departamento de Matemtica Universidad Nacional del Sur Avda. Alem 1253 8000 Bahía BlancaBuenos Aires Argentina Departamento de Matem'aticas Universidad Autónoma de Madrid ICMAT-CSIC-UAM-UCM-UC3MCiudad Universitaria de Canto Blanco 28049 Madrid Spain

In this paper, we study fractional square functions associated with the Poisson semigroup for SchrSdinger operators. We characterize the potential spaces in the SchrSdinger setting by using vertical, area and gλ, fra... 详细信息

关键词： g-function Schrodinger operator potential space

Usefulness of serum C-reactive protein and calprotectin for the early detection of colorectal anastomotic leakage:A prospective observational study

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World j.urnal of Gastroenterology 2022年第24期28卷 2758-2774页

作者： Nuno j.G Rama Marlene C C Lages Maria Pedro S Guarino Óscar Lourenço Patrícia C Motta Lima Diana Parente Cândida S G Silva ricardo Castro Ana Bento Anabela Rocha Fernando Castro-Pocas j.ão Pimente Colorectal Surgical Division Leiria Hospital CentreLeiria 2410-021Portugal Abel Salazar Biomedical Institute(ICBAS) University of OportoOporto 4099-002Portugal Center for Innovative Care and Health Technology(ciTechCare) Polytechnic of LeiriaLeiria 2410-541Portugal Faculty of Economics CeBERUniversity of CoimbraCoimbra 3000-137Portugal Clinical Pathology Division Leiria Hospital CentreLeiria 2410-541Portugal Surgical Division Oporto Hospital CentreOporto 4099-001Portugal Department of Gastroenterology Santo António HospitalPorto Hospital CenterPorto 4099-001Portugal Institute of Biomedical Sciences Abel Salazar University of PortoPorto 4099-001Portugal Faculty of Medicine University of CoimbraCoimbra 3004-531Portugal Surgical Division Montes Claros HospitalCoimbra 3030-320Portugal

BACKGROUND Colorectal anastomotic leakage(CAL)is one of the most dreaded complications after colorectal surgery,with an incidence that can be as high as 27%.This event is associated with increased morbidity and mortality;therefore,its early diagnosis is crucial to reduce clinical consequences and *** biomarkers have been suggested as laboratory tools for the diagnosis of *** To assess the usefulness of plasma C-reactive protein(CRP)and calprotectin(CLP)as early predictors of *** A prospective monocentric observational study was conducted including patients who underwent colorectal resection with anastomosis,from March 2017 to August *** were divided into three groups:G1–no complications;G2–complications not related to CAL;and G3–*** biomarkers were measured and analyzed in the first 5 postoperative days(PODs),namely white blood cell(WBC)count,eosinophil cell count(ECC),CRP,CLP,and procalcitonin(PCT).Clinical criteria,such as abdominal pain and clinical condition,were also *** correlation between biomarkers and CAL was *** operating characteristic(ROC)curve analysis was used to compare the accuracy of these biomarkers as predictors of CAL,and the area under the ROC curve(AUROC),specificity,sensitivity,positive predictive value,and negative predictive value(NPV)during this period were *** In total,25 of 396 patients developed CAL(6.3%),and the mean time for this diagnosis was 9.0±6.8 *** operative characteristics,such as surgical approach,blood loss,intraoperative complications,and duration of the procedure,were notably related to the development of *** length of hospital stay was markedly higher in the group that developed CAL compared with the group with complications other than CAL and the group with no complications(median of 21 d vs 13 d and 7 d respectively;P<0.001).For abdominal pain,the best predictive performance was on POD4 and POD5,with the largest AUROC of 0.84 on ***

关键词： Anastomotic leakage Colorectal Surgery Biomarkers C-reactive protein Calprotectin

PED Flex with Shield Technology:a feasible alternative for fusiform MCA aneurysms

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Stroke & Vascular Neurology 2018年第3期3卷 185-188页

作者： Guilherme j.Agnoletto Pedro Aguilar-Salinas Roberta Santos Eric Sauvageau ricardo A.Hanel Lyerly Neurosurgery Baptist Neurological InstituteJacksonvilleFLUSA

BACKGROUND The advent of flow diverters(FDs)has changed the scope of endovascular treatment options for intracranial aneurysms(IAs).FDs can effectively treat complex aneurysms in which both microsurgical and conventional endovascular options are less than ideal.12 The Pipeline Flex Embolization Device(PED;Medtronic,Irvine,California,USA)has been available in the USA for several years demon-strating positive *** recently,the PED Flex with enhanced delivery features has been introduced,and although decreased,thromboembolic complications are still a potential risk.3 In light of this,a new surface modification was applied to the PED Flex known as Shield Technology consisting of a phosphorylcholine layer covalently bound to its metal braids potentially reducing its thrombogenicity.4 Herein,we report our initial experience using the PED Flex with Shield Technology in the treatment of an unruptured fusiform aneurysm located in the middle cerebral artery(MCA)using dual-an-tiplatelet therapy.

关键词： Flex PED MCA treatment

Studying Formability Limits By Combining Conventional and Incremental Sheet Forming Process

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Chinese j.urnal of Mechanical Engineering 2021年第4期34卷 78-89页

作者： Fabio Andre Lora Daniel Fritzen ricardo Alves de Sousa Lirio Schaffer Department of Materials Engineering Federal University of Recôncavo da BahiaCampus CETENSFeira de SantanaBahia 44085-132Brazil SATC Uni-versity CriciumaBrazil Center of Mechanical Technology and Automation Department of Mechanical EngineeringUniversity of Aveiro3810-193 AveiroPortugal Federal University of Rio Grande do Sul Porto AlegreBrazil

In this work it is assessed the potential of combining conventional and incremental sheet forming processes in a same sheet of *** so-called hybrid forming approach is performed through the manufacture of a pre-forming by conventional forming,followed by incremental sheet *** main obj.ctive is analyzing strain *** pre-forming induced in the conventional forming stage will determine the strain paths,directly influencing the strains produced by the incremental *** conduct the study,in the conventional processes,strains were imposed in three different ways with distinct true *** the incremental stage,the pyramid strategy was adopted with different wall *** the experiments,the true strains and the final geometries were *** simulation was also employed for the sake of comparison and correlation with the measured *** could be observed that single-stretch pre-strain was directly proportional to the maximum incremental strains achieved,whereas samples subj.cted to biaxial pre-strain influenced the formability according to the degree of pre-strain ***-strain driven by the prior deep-drawing operation did not result,in this particular geometry,in increased formability.

关键词： Hybrid forming process Incremental sheet forming Strain paths Numerical simulation

Presenilin mutations and their impact on neuronal differentiation in Alzheimer’s disease

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Neural Regeneration Research 2022年第1期17卷 31-37页

作者： Mercedes A.Hernández-Sapiéns Edwin E.Reza-Zaldívar Ana L.Márquez-Aguirre Ulises Gómez-Pinedo j.rge Matias-Guiu ricardo R.Cevallos j.an C.Mateos-Díaz Víctor j.Sánchez-González Alej.ndro A.Canales-Aguirre Unidad de Evaluación Preclínica Unidad de Biotecnología Médica y FarmacéuticaCentro de Investigación y Asistencia en Tecnología y Diseño del Estado de JaliscoGuadalajaraMéxico Instituto de Neurociencias IdISSCHospital Clínico San CarlosMadridEspaña Biochemistry and Molecular Genetics Department University of AlabamaBirminghamAlabama Unidad de Biotecnología Industrial Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de JaliscoGuadalajaraMéxico Centro Universitario de los Altos Universidad de GuadalajaraGuadalajaraMéxico

The presenilin genes(PSEN1 and PSEN2)are mainly responsible for causing early-onset familial Alzheimer’s disease,harboring~300 causative mutations,and representing~90%of all mutations associated with a very aggressive disease *** 1 is the catalytic core of theγ-secretase complex that conducts the intramembranous proteolytic excision of multiple transmembrane proteins like the amyloid precursor protein,Notch-1,N-and E-cadherin,LRP,Syndecan,Delta,j.gged,CD44,ErbB4,and *** 1 plays an essential role in neural progenitor maintenance,neurogenesis,neurite outgrowth,synaptic function,neuronal function,myelination,and ***,an imbalance caused by mutations in presenilin 1/γ-secretase might cause aberrant signaling,synaptic dysfunction,memory impairment,and increased Aβ42/Aβ40 ratio,contributing to neurodegeneration during the initial stages of Alzheimer’s disease *** review focuses on the neuronal differentiation dysregulation mediated by PSEN1 mutations in Alzheimer’s ***,we emphasize the importance of Alzheimer’s disease-induced pluripotent stem cells models in analyzing PSEN1 mutations implication over the early stages of the Alzheimer’s disease pathogenesis throughout neuronal differentiation impairment.

关键词： familial Alzheimer’s disease familial Alzheimer’s disease-induced pluripotent stem cells models induced pluripotent stem cells neurogenesis neuronal differentiation Notch presenilin 1 PSEN1 mutations γ-secretase complex

Association between Helicobacter pylori infection,mismatch repair,HER2 and tumor-infiltrating lymphocytes in gastric cancer

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World j.urnal of Gastrointestinal Oncology 2024年第6期16卷 2487-2503页

作者： Carlos A Castaneda Miluska Castillo Luis A Bernabe j.selyn Sanchez Matteo Fassan Katherine Tello Ignacio Ivan Wistuba Ivan Chavez Passiuri Eloy Ruiz j.venal Sanchez Fernando Barreda Daniel Valdivia Yaqueline Bazan Milagros Abad-Licham Claudio Mengoa Hugo Fuentes Paola Montenegro Ebert Poquioma Raul Alatrista Claudio j.Flores Luis Taxa Faculty of Health Sciences Universidad Cientifica del SurLima 15038Peru GECO PERU Grupo de Estudios Clinicos Oncologicos del PeruLima 15038Peru Department of Research Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Faculty of Human Medicine Universidad Ricardo PalmaLima 15039Peru Department of Medicine Surgical Pathology&Cytopathology UnitUniversity of PaduaPadua 35121Italy Department of Translational Molecular Pathology The University of Texas MD Anderson Cancer CenterHoustonTX 77030United States Department of Abdominal Surgery Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Department of Pathology Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Department of Medical Specialties Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Department of Pathology Instituto Regional de Enfermedades Neoplasicas del NorteTrujillo 13001Peru Faculty of Human Medicine Universidad Privada Antenor OrregoTrujillo 13008Peru Department of Surgery Instituto Regional de Enfermedades Neoplasicas del SurArequipa 04002Peru Department of Medical Oncology Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Department of Epidemiology Instituto Nacional de Enfermedades NeoplasicasLima 15038Peru Unidad de Investigación Básica y Traslacional Oncosalud-AUNALima 15038Peru Faculty of Medicine Universidad San Martin de PorresLima 15008Peru

BACKGROUND The influence of Helicobacter-pylori(***)infection and the characteristics of gastric cancer(GC)on tumor-infiltrating lymphocyte(TIL)levels has not been extensively *** of infiltrating-immune-cell subtypes as well as survival is necessary to obtain comprehensive *** To determine the rates of deficient mismatch-repair(dMMR),HER2-status and *** infection and their association with TIL levels in *** Samples from 503 resected GC tumors were included and TIL levels were evaluated following the international-TILs-working-group recommendations with assessment of the intratumoral(IT),stromal(ST)and invasive-border(IB)*** density of CD3,CD8 and CD163 immune cells,and dMMR and HER2-status were determined by immunohistochemistry(IHC).*** infection was evaluated by routine histology and quantitative PCR(qPCR)in a subset of *** dMMR was found in 34.4%,HER2+in 5%and ***-positive in 55.7%of *** IT-TIL was associated with grade-3(P=0.038),while ST-TIL with grade-1(P<0.001),intestinal-histology(P<0.001)and no-recurrence(P=0.003).dMMR was associated with high TIL levels in the ST(P=0.019)and IB(P=0.01)compartments,and STCD3(P=0.049)and ST-CD8(P=0.05)***2-was associated with high IT-CD8(P=0.009).*** was associated with high IT-TIL levels(P=0.009)when assessed by routine-histology,and with high TIL levels in the 3 compartments(P=0.002-0.047)and CD8 density in the IT and ST compartments(P=0.001)when assessed by qPCR.A longer overall survival was associated with low IT-CD163(P=0.003)and CD8/CD3(P=0.001 in IT and P=0.002 in ST)and high IT-CD3(P=0.021),ST-CD3(P=0.003)and CD3/CD163(P=0.002).CONCLUSION TIL levels were related to dMMR and *** CD8/CD3 and high CD163/CD3 were associated with lower recurrence and longer survival.

关键词： Lymphocytes Macrophages Gastric cancer Helicobacter pylori HER2 Mismatch repair

The BRICS Council for Exercise and Sport Science(BRICSCESS)--A new era has dawned

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j.urnal of Sport and Health Science 2018年第4期7卷 425-428页

作者： ricardo r.uvinha nara r.c.de oliveira hans de ridder ming-kai chin j.larry durstine school of arts sciences and humanitiesgraduate program in physical activity sciencesuniversity of sao pauloSao Paulo 03828-000Brazil department of human movement sciences federal university of sao pauloSantos 11015-020Brazil physical activity sport and recreation(phasrec)focus areanorth-west university potchefstroom campusPotchefstroom 2520South AfricaLas VegasNV89012USA the foundation for global community health(gch) department of exercise science university of south carolinaColumbiaSC 29208USA

1. Introduction PBRICS is the acronym for an international association of 5maj.r emerging national economies:Brazil, Russia, India,China, and South Africa.1According to the World Economic Forum, the BRICS economies ar... 详细信息

关键词：国民经济世界经济世界人口国际协会缩略词地区性竞争力影响区