Search | SciELO

Need help?

Add field +

Search history

No documents were found for your search

Results: 29

au:CORTEZ, RAFAEL

Filters

Collection + Options

All
Brazil

19
Bolivia

2
Mexico

2
Argentina

1
Colombia

1
Peru

1
Portugal

1
Public Health

1
Venezuela

1

Journal + Options

All
Arquivos de Neuro-Psiquiatria

2
Revista Brasileira de Otorrinolaringologia

2
Acta zoológica mexicana

1
Agronomía Colombiana

1
Anales de la Facultad de Medicina

1
Arquivos Brasileiros de Oftalmologia

1
Brazilian Journal of Geology

1
Brazilian Journal of Pharmaceutical Sciences

1
Bulletin of the World Health Organization

1
Ciência & Tecnologia dos Materiais

1
Ciência e Agrotecnologia

1
Clinics

1
Cuadernos Hospital de Clínicas

1
Dados

1
Engenharia Agrícola

1

Show all...

Language

All
Portuguese

10

Publication Year + Options

All
2009

4
2008

3
2014

3
2021

3
2007

2
2010

2
2012

2
2013

2
2016

2
2023

2
2011

1
2018

1
2020

1
2022

1

SciELO Thematic Areas + Options

All
Health Sciences

15
Agricultural Sciences

4
Biological Sciences

4
Human Sciences

4
Engineering

1
Exact and Earth Sciences

1
Multidisciplinary

1

WoS Subject Categories + Options

All
Medicine

6
Multidisciplinary

6
General

5
Internal

5
Sciences

5
Science

4
Health

3
Neurosciences

3
Policy

3
Services

3
Agriculture

2
Otorhinolaryngology

2
Pharmacology

2
Pharmacy

2
Political

2

Show all...

WoS Citation Index + Options

All
Science Citation Index Expanded

12
Social Sciences Citation Index

2

Citables and non citables

All
Citable

29

Type of Literature + Options

All
Article

25
Case report

3
Review article

1

Order by

Page of 2 Next

Select this page

Print | Send to email | Export |

Facebook
Twitter
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

0 Selected itens

List all
Erase all

Effectiveness of a course on family health in the knowledge of doctors of the Mais Médicos program
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Cortez, Lyane Ramalho

; Silva, Isabelle Pereira da

; Freitas, Luana Souza

; Nascimento, Rafael Moreira do

; Mesquita, Simone Karine da Costa

; Silva, José Adailton da

; Costa, Isabelle Katherinne Fernandes

Revista da Associação Médica Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jan 2023, Volume 69 N. 1 Pages 131 - 135

Abstract: En | Text: En | PDF: En

SUMMARY OBJECTIVE: The aim of this study was to analyze the effectiveness of the distance education course in family health in the knowledge of physicians from the Mais Médicos program. METHOD: This is a quantitative, quasi-experimental study, without a pretest and posttest control group, carried out from August 2019 to September 2021. In all modules, physicians responded to a pretest and posttest to verify their knowledge of the subject. RESULTS: There was a statistically significant difference in all modules with higher average scores in the posttests; the modules with the greatest emphasis are child health care: growth and development; approach to cancer in primary health care; and family health strategy and territorialization. CONCLUSION: The effectiveness of the distance education course was verified, as evidenced by the significant improvement of knowledge in all the modules studied.

https://doi.org/10.1590/1806-9282.20220966

Fertirrigation with manganese in beet
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Costa, Romualdo Medeiros Cortez

; Grangeiro, Leilson Costa

; Cortez, Juan Waldir Mendoza

; Morais, Eric George

; Oliveira, Renata Ramayane Torquato

; Silva, Ilmara Beatriz Menezes

Ciência e Agrotecnologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 47 elocation e014622

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT No study has investigated the fertilization of beet with manganese (Mn) in the Brazilian semi-arid region. In this study, we evaluated the agronomic performance of manganese fertigated beet in Mossoró, Rio Grande do Norte. The experiments were conducted at Fazenda Experimental Rafael Fernandes in 2019 and 2021, and the study had a complete randomized block design with five treatments (0, 3, 6, 9, and 12 kg ha-1 Mn) and four replications. The Mn content increased in foliar diagnosis with fertilization. The accumulation of dry mass and the number of leaves did not differ significantly as a function of the dose. The highest total (21.59 t ha-1) and commercial (20.55 t ha-1) yields of tuberous roots were obtained with 6 kg ha-1 Mn. The adverse effects of excess Mn were expressed in the lower total and commercial productivity of beet fertilized with more than 6 kg ha-1 Mn. The accumulation of Mn in the tuberous roots was not affected by fertilization. In the leaves and the whole plant, the maximum accumulation occurred when 12 kg ha-1 Mn was applied. Although Mn did not influence the content of soluble solids, the pH of the tuberous roots of plants fertilized with 6 kg ha-1 Mn decreased, and the dose with the highest total and commercial productivity had a lower content of soluble sugars. Our findings suggest that treatment with 6 kg ha-1 Mn is optimum for the beet crop.

RESUMO Não há na literatura recomendações de adubação com manganês (Mn) para beterraba estabelecidas no semiárido brasileiro. Objetivou-se avaliar o desempenho agronômico de beterraba fertirrigada manganês em Mossoró, RN. Foram desenvolvidos experimentos na Fazenda Experimental Rafael Fernandes nos anos de 2019 e 2021, delineados em blocos casualizados completos com cinco tratamentos (0, 3,0, 6,0, 9,0 e 12,0 kg ha-1 de Mn) e quatro repetições. Houve aumento no teor de Mn na diagnose foliar com a adubação. O acúmulo de massa seca e o número de folhas não diferiram estatisticamente em função das doses. A maior produtividade total (21,59 t ha-1) e comercial (20,55 t ha-1) de raiz tuberosa foi obtida com 6,0 kg ha-1 de Mn. O efeito deletério do excesso de Mn foi expresso na menor produtividade total e comercial de beterraba adubada com mais que 6,0 kg ha-1 de Mn. O Mn acumulado na raiz tuberosa não foi influenciado pela adubação. Nas folhas e na planta inteira, o acúmulo máximo ocorreu na dose 12,0 kg ha-1 de Mn. O Mn não influenciou no conteúdo de sólidos solúveis, mas reduziu o pH e, a raiz tuberosa das plantas adubadas com 6,0 kg ha-1 de Mn, dose com maior produtividade total e comercial, tiveram menor teor de açúcares solúveis. Recomenda-se adubação com 6,0 kg ha-1 de Mn para a cultura da beterraba.

https://doi.org/10.1590/1413-7054202347014622

Increasing rate of anti-SARS-CoV-2 antibodies between the first and second waves of COVID-19 in Sao Paulo, Brazil: A cross-sectional blood donors-based study
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Vale, Nayara Moya Rios do

; Latini, Flavia Roche Moreira

; Arnoni, Carine Prisco

; Parreira, Rafael Martins

; Girão, Manoel João Batista Castelo

; Cortez, Afonso Jose Pereira

; Bonetti, Tatiana Carvalho de Souza

Clinics

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 77 elocation 100016

Abstract: En | Text: En | PDF: En

ABSTRACT Background: SARS-CoV-2 infections rapidly spread along with Brazilian territory with heterogeneous transmission and mortality rates, mostly depending on region and period. Investigation of SARS-CoV-2 antibodies is an important tool to understand virus circulation. Given that blood donors are a representative casuistic of a healthy population, the authors evaluated the seroprevalence of IgG and IgM COVID-19 antibodies in 2,806 blood donors from a blood bank located in São Paulo, Brazil. Methods: Aiming to evaluate viral behavior over time, the authors selected samples from blood donors who donated in June and October 2020, and February 2021. To determine whether socio-demographic features affected the seroprevalence, the authors analyzed samples from three different regions from São Paulo (capital, metropolitan and countryside regions) and evaluated predictors as gender, age, educational level, race, and use of public transportation. Results: As expected, the authors observed that seroprevalence increased over time. Seroprevalence was greater in São Paulo city compared to metropolitan and countryside regions, being smallest in the countryside. Characteristics associated with a lower percentage of antibodies were age above 50 years, higher educational level, self-declared Caucasian, and use of individual transportation. Conclusion: In conclusion, blood donors' samples proved to accurately reflect virus circulation in the healthy population.

https://doi.org/10.1016/j.clinsp.2022.100016

Epidemiological and clinical aspects of Guillain-Barré syndrome and its variants
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Dayanne Rodrigues da Cunha Alves Bento

; Fernandez, Rubens Nelson Morato

; Grippe, Talyta Cortez

; Baião, Fabiano Silva

; Duarte, Rafael Lourenco

; Fernandez, Diego Jose

Arquivos de Neuro-Psiquiatria

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2021, Volume 79 N. 6 Pages 497 - 503

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Introdução: Síndrome de Guillain-Barré (SGB), uma polirradiculoneuropatia aguda que ocorre devido a uma resposta inflamatória anormal no sistema nervoso periférico, é caracterizada clinicamente por paralisia flácida aguda e arreflexia, com ou sem sintomas sensitivos. Essa síndrome pode deixar sequelas incapacitantes ou até ameaçar a vida. Objetivo: Apresentar os aspectos clínicos e epidemiológicos da SGB em pacientes internados em um hospital terciário do Distrito Federal, no período de janeiro/2013 a junho/2019. Métodos: Estudo observacional, transversal e retrospectivo, no qual pacientes com diagnóstico de polirradiculoneuropatia desmielinizante inflamatória aguda, neuropatia axonal motora aguda ou neuropatia axonal sensitivo motora aguda a partir dos achados eletroneuromiográficos foram selecionados e seus dados clínicos coletados retrospectivamente em seus prontuários. Resultados: Um total de 100 pacientes (63 homens e 37 mulheres; proporção de 1,7:1), com idades entre 2–86 anos (média, 36,4 anos), foram incluídos. A taxa média anual de incidência de SGB foi de 0,54 casos/100.000 habitantes, com 52 e 49% dos casos ocorrendo entre outubro e março (período chuvoso) e entre abril e setembro (período seco), respectivamente. A proporção de pacientes que apresentaram cada variante de SGB foi a seguinte: formas desmielinizantes, 57%; formas axonais, 39%; e indeterminado, 4%. A duração média da hospitalização foi de 8‒15 dias para a maioria dos pacientes (38%). Durante a hospitalização, 14% dos pacientes necessitaram de ventilação mecânica e 20% apresentaram complicações infecciosas. Conclusão: Os resultados indicam aumento na incidência de GBS durante a estação chuvosa. Além disso, não observamos a distribuição bimodal típica em relação à idade de início.

Abstract Background: Guillain-Barré syndrome (GBS), an acute polyradiculoneuropathy that occurs because of an abnormal inflammatory response in the peripheral nervous system, is clinically characterized by acute flaccid paresis and areflexia with or without sensory symptoms. This syndrome can lead to disabling or even life-threatening sequelae. Objective: This study aimed to present the clinical and epidemiological aspects of GBS in patients admitted to a tertiary-level hospital in the Federal District between January 2013 and June 2019. Methods: In this observational, cross-sectional and retrospective study, medical records of patients diagnosed with acute inflammatory demyelinating polyradiculoneuropathy, acute motor axonal neuropathy or acute axonal motor-sensitive neuropathy based on electromyographic findings were included, and clinical data were collected retrospectively. Results: A total of 100 patients (63 males and 37 females; ratio, 1.7:1) aged 2–86 years (mean, 36.4 years) were included. The mean annual incidence rate of GBS was 0.54 cases/100,000 inhabitants, with 52 and 49% of the cases occurring between October and March (rainy season) and between April and September (dry season), respectively. The proportions of patients showing each GBS variant were as follows: demyelinating forms, 57%; axonal forms, 39%; and undetermined, 4%. The mean duration of hospitalization was 8–15 days for most patients (38%). During hospitalization, 14% of the patients required mechanical ventilation and 20% experienced infectious complications. Conclusion: The findings indicate that there was an increase in the incidence of GBS during the rainy season. Moreover, we did not observe the typical bimodal distribution regarding age at onset.

https://doi.org/10.1590/0004-282x-anp-2020-0314 293 downloads

Orbital lymphatic vessels: immunohistochemical detection in the lacrimal gland, optic nerve, fat tissue, and extrinsic oculomotor muscles
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Damasceno, Renato Wendell Ferreira

; Barbosa, Juliana Arôxa Pereira

; Cortez, Lucas Rafael Costa

; Belfort Jr., Rubens

Arquivos Brasileiros de Oftalmologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2021, Volume 84 N. 3 Pages 209 - 213

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivos: Identificar vasos linfáticos em espécimes orbitários de cadáveres humanos através de microscopia óptica e análise imunohistoquímica. Métodos: Um estudo postmortem incluiu dez espécimes orbitários provenientes de dez cadáveres humanos. Todos os espécimes orbitários foram obtidos até 12 horas após a morte com uma técnica cirúrgica de exenteração orbitária e dissecados em glândula lacrimal, nervo óptico, gordura órbitária e músculos extraoculares. Para classificar como um vaso linfático, os critérios histológicos incluíram vasos endoteliais de parede única sem membrana basal bem desenvolvida, irregulares e lúmen sem hemácias, e os critérios imunohistoquímicos incluíram vasos endoteliais de parede única, com formato irregular e lúmen sem hemácias e reagentes a podoplanina D2-40. Resultados: As lâminas histológicas de glândula lacrimal, nervo óptico, tecido adiposo e músculos extraoculares reagiram positivamente a podoplanina D2-40. Conclusão: Este estudo demonstrou vasos linfáticos na órbita humana, mais exatamente, na glândula lacrimal, no nervo óptico, na gordura orbitária e nos músculos extrínsecos extraoculares via microscopia óptica e imunohistoquímica.

ABSTRACT Purpose: To identify the lymphatic vessels in orbital specimens from human cadavers using light microscopy and immunohistochemical analysis. Methods: A postmortem study included 10 orbital specimens from 10 human cadavers. The orbital specimens were obtained no later than 12 hours after death. The orbital specimens were dissected into lacrimal gland, optic nerve, fat tissue, and oculomotor muscles. The histologic criteria to qualify as a lymphatic vessel were thin-walled channels of endothelium without a well-developed basal membrane and with an erythrocyte-free, irregular lumen. The immunohistochemical criteria were irregularly shaped, thin-walled vessels with an erythrocyte-free, irregular lumen and immunopositivity for podoplanin D2-40. Results: The lacrimal gland, optic nerve, fat tissue, and extraocular muscle sections were positively stained with podoplanin D2-40. Conclusions: This study demonstrated lymphatic vessels in the human orbit, more precisely, in the lacrimal gland, dura mater of the optic nerve, adipose tissue, and extrinsic oculomotor muscles via light microscopy and immunohistochemistry.

https://doi.org/10.5935/0004-2749.20210035 142 downloads

Resistencia del frijol al ataque del gorgojo pardo Acanthoscelides obtectus (Say, 1831) (Coleoptera: Chrysomelidae) en la zona Norte de Sinaloa
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Armenta-López, Arturo Rafael

; Lugo-García, Gabriel Antonio

; Sánchez-Soto, Bardo Heleodoro

; Romero-Félix, Celia Selene

; Cortez-Mondaca, Edgardo

; Nava-Pérez, Eusebio

Acta zoológica mexicana

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2021, Volume 37 elocation e3712427

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

RESUMEN El frijol es un producto básico en la alimentación de los mexicanos, pero su comercialización y establecimiento es afectado por el gorgojo pardo (A. obtectus), ya que es una plaga grave cuando la semilla está almacenada. En la última década, en Sinaloa, México, se establecieron nuevas variedades de fríjol con características agronómicas valiosas, como la alta productividad y calidad del producto cosechado; sin embargo, es indispensable determinar la resistencia o alta tolerancia de estos cultivares al ataque de este insecto. Debido a esto, se determinó la resistencia de seis cultivares de frijol (Aluyori, Azufrasin, Azufrado Higuera, Azufrado Noroeste, Azufrado Regional 87 y Janasa) cultivados en el centro y norte del estado de Sinaloa, al ataque y daño del gorgojo pardo Acanthoscelides obtectus (Say, 1831). Se compararon seis cultivares con cuatro repeticiones. El cultivar Aluyori presentó mayor resistencia con sólo el 18 % de semilla, escaso número de adultos emergidos (37) y mínima disminución de la capacidad germinativa (2.33 %). Por el contrario, el más susceptible fue Janasa con los siguientes valores: 51.75 %, 131.5 y 24.75 %, respectivamente. Por lo anterior, se recomienda la utilización de Aluyori y Azufrado Higuera para reducir el impacto negativo de la plaga, aunque se recomienda seguir con la experimentación de los materiales contenidos en los bancos de germoplasma para la futura liberación de nuevos cultivares.

ABSTRACT The bean is a basic product in the diet of Mexicans, but its commercialization and establishment is affected by the brown weevil (A. obtectus), since it is a serious pest when the seed is stored. In the last decade, in Sinaloa, Mexico, new bean varieties have been established with valuable agronomic characteristics, such as high productivity and quality of the harvested product; However, it is essential to determine the resistance or high tolerance of these cultivars to the attack of this insect. Due to this, the resistance of six bean cultivars (Aluyori, Azufrasin, Azufrado Higuera, Azufrado Noroeste, Azufrado Regional 87 and Janasa) cultivated in the center and north of the state of Sinaloa, to the attack and damage of the bean weevil Acanthoscelides obtectus (Say, 1831) was determined. Six cultivars with four replications were compared. The Aluyori cultivar presented greater resistance with only 18 % seed, low number of emerged adults (37) and minimal decrease in germination capacity (2.33 %). On the contrary, the most susceptible was Janasa with the following values: 51.75 %, 131.5 and 24.75 %, respectively. Therefore, the use of Aluyori and Azufrado Higuera is recommended to reduce the negative impact of the pest, although it is recommended to continue with the experimentation of the materials contained in the germplasm banks for the future release of new cultivars.

https://doi.org/10.21829/azm.2021.3712427 62 downloads

Densidad de la masa ósea y marcadores bioquímicos del metabolismo óseo: estudio transversal en adultos residentes de Lima Metropolitana, Perú
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Garmendia-Lorenai, Fausto

; Pando-Álvarez, Rosa

; Ruiz-Franco, Oscar

; Salas-Pérez, Marcia

; Chuquihuara-Rodríguez, Ángela

; Hidalgo-García, Arquímedes

; Hernández-Alegre, Martín

; Ronceros-Medrano, Gerardo

; Larrabure-Torrealva, Gloria

; Fuentes-Rivera, José

; Yactayo-Silva, Diana

; Orellana-Cortez, Alex

; Pichardo-Rodríguez, Rafael

Anales de la Facultad de Medicina

Journal Metrics
- Sobre o periódico
- SciELO Analytics

apr 2020, Volume 81 N. 2 Pages 148 - 153

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Objectives. To determine and correlate the bone mineral density (BMD) and the biochemical markers of bone metabolism in adults 30 to 40 years old from Lima, Perú, in year 2018. Methods. A total of 84 women and 53 men, 30 to 40 years old from Lima, Perú, were submmited to a descriptive, transversal study. They did not have symptoms nor treatment for bone metabolic diseases. Information about their present health state, personal and familiar physiological and pathological history and physical examinatión were registered. BMD was measured by dual energy-X-ray absorptiometry in spine, hip and forearm. Parathormone, osteocalcine, 25-hidroxi-vitamine-D, luteinizing hormone, estradiol in women, testosterone in men, calcium, phosphorus, alkaline fosfatase, total and fractionated proteins, creatinine were measured in blood; in urine N-telopéptide, calcium and phosphorus by conventional methods. Results. BMD was measured in 62 women and 40 males; 2 women and 1 man had osteoporosis and 3 women and 2 men osteopenia, who were taken out of statistical evaluation; 58 women and 35 men showed a normal BMD. Male subjects had a greater BMD, higher calcium, alkaline fosfatase and creatine blood concentrations than the female ones; 14 women y 2 men had low 25-OH-vitaminaD concentrations. A positive correlation between the BMD and BMI was found. Conclusions. The normal BMD of persons 30 to 40 years old showed a linear figure and there was a positive correlate with the BMI; premature osteoporosis in 2 women and 1 men as well as osteopenia in 3 women y 2 men was found, low concentrations of 25-hidroxi-vitamine-D was detected in 16 persons.

RESUMEN Objetivos. Determinar y correlacionar la densidad mineral ósea (DMO) y los marcadores bioquímicos del metabolismo óseo de adultos de 30 a 40 años de Lima, Perú, en el año 2018. Métodos. Estudio descriptivo, transversal, realizado a 84 mujeres y 53 varones, de 30 a 40 años de edad, residentes en Lima, Perú, sin manifestaciones ni tratamiento de enfermedades metabólicas óseas primarias ni secundarias. Se registró información del estado actual, antecedentes personales fisiológicos, patológicos, familiares y examen clínico. Se midió la DMO por absorciometría dual de rayos X en columna, cadera y antebrazo; en sangre, parathormona, osteocalcina, 25-hidroxi-vitamina-D, hormona luteinizante, estradiol en las mujeres, testosterona en los varones, calcio sérico, fósforo sérico, fosfatasa alcalina, proteínas totales y fracciones, creatinina; en orina N-telopéptido de enlaces de colágeno tipo I, calcio y fósforo, por métodos convencionales. Resultados. La DMO se efectuó a 62 mujeres y 40 varones; 2 mujeres y 1 varón tuvieron osteoporosis, y 3 mujeres y 2 varones osteopenia, retirados para la evaluación estadística; 58 mujeres y 35 varones tuvieron una DMO normal. Los varones tuvieron mayor DMO y concentraciones mayores de calcio, fosfatasa alcalina y creatinina; 14 mujeres y 2 varones tuvieron cifras bajas de 25-OH-vitaminaD. Hubo correlación positiva entre DMO y el IMC. Conclusiones. La DMO normal de personas de 30 a 40 años de Lima fue lineal y hubo una relación positiva con el IMC; hubo osteoporosis en 2 mujeres y 1 varón, osteopenia en 3 mujeres y 2 varones, cifras bajas de 25-hidroxi-vitamina-D en 16 personas.

https://doi.org/10.15381/anales.v81i2.18106

Suicidal ideation, anxiety, and depression in patients with multiple sclerosis
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Tauil, Carlos Bernardo

; Grippe, Talyta Cortez

; Dias, Ronaldo Maciel

; Dias-Carneiro, Rafael Paternò Castello

; Carneiro, Narel Moita

; Aguilar, Ana Carolina Rodrigues

; Silva, Flávia Martins da

; Bezerra, Felipe

; Almeida, Leonardo Kenzo de

; Massarente, Vitoria Lana

; Giovannelli, Elaine de Carvalho

; Tilbery, Charles Peter

; Brandão, Carlos Otávio

; Santos, Leonilda Maria B

; Santos-Neto, Leopoldo dos

Arquivos de Neuro-Psiquiatria

Journal Metrics
- Sobre o periódico
- SciELO Analytics

may 2018, Volume 76 N. 5 Pages 296 - 301

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Transtornos psiquiátricos frequentemente ocorrem em pacientes com esclerose múltipla (EM). No entanto, os artigos sobre estas comorbidades são limitados. Pretendemos investigar as relações entre EM, ansiedade, depressão e ideação suicida. Métodos: Cento e trinta e dois pacientes com EM remitente-recorrente foram avaliados usando a Escala de Estado de Incapacidade Expandida, Inventário de Depressão de Beck-II (IDB-II), Escala de Beck para Ideação de Suicídio (BSI) e Escala de Ansiedade e Depressão. Resultados: Uma análise de regressão hierárquica foi realizada para avaliar as variáveis. A equação de regressão previu significativamente o escore BSI (R2 = 0,306; R2 ajustado = 0,273; F (9,125) = 9,18; p < 0,0005) e o escore no IDB-II foi a única variável que contribuiu significativamente para este modelo (p < 0,0005). Conclusões: Uma alta prevalência de depressão e ansiedade e uma maior taxa de ideação suicida foram identificadas em pacientes com EM em comparação com a população em geral. A presença de sintomas depressivos pareceu ter uma influência direta no risco de suicídio.

ABSTRACT Psychiatric disorders frequently occur in patients with multiple sclerosis (MS); however, limited reports are available on these comorbidities. We aimed to investigate the relationships among MS, anxiety, depression, and suicidal ideation. Methods: One hundred and thirty two patients with relapsing-remitting MS were evaluated using the Expanded Disability Status Scale, Beck Depression Inventory-II (BDI-II), Beck Scale for Suicide Ideation (BSI), and Hospital Anxiety and Depression Scale. Results: A hierarchical regression analysis was performed to evaluate the variables. The regression equation significantly predicted the BSI score (R2 = 0.306; adjusted R2 = 0.273; F (9, 125) = 9.18; p < 0.0005), and the BDI-II score was the only variable that contributed significantly to this model (p < 0.0005). Conclusions: A high prevalence of depression and anxiety, and a higher rate of suicidal ideation were identified in MS patients compared to the general population. The presence of depressive symptoms appeared to have a direct influence on the risk of suicide.

https://doi.org/10.1590/0004-282x20180036 4430 downloads

Asociación entre rotavirus y síndrome convulsivo febril y afebril
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Zurita Céspedes, Brian Iván

; Cortez Chávez, Mauricio Ramiro

; Salinas Cortez, Pablo Rafael

; Santa Cruz Rodríguez, Concepción

Gaceta Médica Boliviana

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2016, Volume 39 N. 2 Pages 111 - 115

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

El Rotavirus es causa habitual de diarrea grave en niños pequeños a nivel mundial. Las manifestaciones clínicas incluyen: diarrea líquida, fiebre, y vómitos, llevando a estados de deshidratación y típica gastroenteritis; además pueden presentar múltiples complicaciones neurológicas, como convulsiones febriles o afebriles. La prevalencia real de estas convulsiones oscilaría entre el 2 y 6%. La fisiopatología de las mismas es aún incierta, pero se han propuesto teorías que intentan explicar un posible mecanismo, entre las que estarían involucrados factores genéticos, raciales, distribución de serotipos, factores pro-convulsivos e incluso alteraciones de la barrera hematoencefálica. Si bien este es un síndrome cuya etiología no es única, se tomará en cuenta la infección por rotavirus ya que este se ha identificado con mayor frecuencia, sobre todo en pacientes afebriles, evitando así procedimientos e intervenciones innecesarias para su diagnóstico.

The Rotavirus is common cause of severe diarrhea in young children worldwide. Clinical manifestations include: liquid diarrhea, fever, and vomiting, leading to states of dehydration and typical gastroenteritis; In addition, they may present multiple neurological complications, such as febrile seizures or afebrile seizures. The actual prevalence of these seizures would range between 2 and 6%. Their pathophysiology is still uncertain, but theories have been proposed that try to explain a possible mechanism, including genetic factors, racial, serotype distribution, pro-convulsive factors and even alterations of the blood-brain barrier. Although this is a syndrome whose etiology is not unique, rotavirus infection will be taken into account since it has been identified more frequently, especially in afebrile patients, thus avoiding unnecessary procedures and interventions for its diagnosis.

3357 downloads

10.

Influencia de la salinidad y la irradiancia sobre el crecimiento y composición bioquímica de una nueva cepa de Dunaliella salina, proveniente de las salinas de Araya, Venezuela
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Guevara, Miguel

; Pinto, Rafael

; Villarroel, José

; Hernández, Elvira

; Díaz, Roberto

; Gotera, Belice

; Cortez, Roraysi

Saber

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2016, Volume 28 N. 3 Pages 494 - 501

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Dunaliella salina es una microalga utilizada para la producción de metabolitos de alto valor industrial y farmacéutico. Se evaluó el efecto combinado de la irradiancia y salinidad sobre el crecimiento, producción de pigmentos y composición bioquímica de una cepa D. salina aislada de las salinas de Araya, a fin de contribuir con el conocimiento de las respuestas fisiológicas de esta cepa ante cambios en las condiciones de su entorno. Se buscó, además, incrementar la variedad de especies microalgales nativas que puedan servir como fuentes de bioproducción para compuestos bioactivos, biomasa y metabolitos de aplicación en la industria de alimentos funcionales, farmacéuticos y biomedicina. Se realizaron cultivos discontinuos de la cepa de D. salina durante 22 d en medio f/2 Guillard (0,88 mmol.L-1 de nitrógeno) a 27 ± 2°C, pH de 7,8; fotoperíodo 12 h luz: 12 h oscuridad, aireación continua (150 mL.L-1) y en dos diferentes salinidades (40 y 250 UPS) e irradiancias (195 y 295 μmolphotons.m-2.s-1). Diariamente, se evaluó el crecimiento poblacional y al final del ensayo se determinaron los contenidos de biomasa, pigmentos, proteínas, lípidos y carbohidratos, así como el tamaño celular. La tasa de crecimiento de la nueva cepa de D. salina disminuyó al aumentar la salinidad y la irradiancia. Sin embargo, el tamaño celular, biomasa, contenidos de proteínas, lípidos, carbohidratos, carotenoides totales y β-caroteno aumentaron al incrementarse la irradiancia y la salinidad. Además, se evidenció la potencialidad que posee esta cepa para ser cultivada para la producción de β-caroteno.

Dunaliella salina is a microalga used for the production of metabolites of high industrial and pharmaceutical value. The combined effect of irradiance and salinity on growth, pigment production and biochemical composition of this strain were evaluated in order to contribute to the knowledge of the physiological responses of this new isolate of D. salina from Araya saltworks, to changes in the conditions of its environment. It was aslo intendend to increase the variety of native microalgae species which can serve as sources of bioproduction for bioactive compounds, biomass and metabolites of application in pharmaceuticals and biomedical industries. Batch cultures of the strain of D. salina were conducted for 22 d at f/2 medium Guillard (0.88 mmol.L-1 of nitrogen) at 27 ± 2°C, pH 7.8; photoperiod 12 h light: 12 h darkness, continuous aeration (150 mL.L-1) in two salinities (40 and 250 UPS) and irradiances (195 and 295 μmolphotons.m-2.s-1). Population growth was evaluated daily and at the end of the trial the contents of biomass, pigments, proteins, lipids, carbohydrates and cell size were determined. The growth rate of the new strain of D. salina decreased with increasing salinity and irradiance. However, cell size, biomass, content of proteins, lipids, carbohydrates, total carotenoids and β-carotene increased with increasing irradiance and salinity. In addition, the potential of this strain for the production of β-carotene was shown.

146 downloads

11.

New approach for the study of paleofloras using geographical information systems applied to Glossopteris Flora
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Christiano-de-Souza, Isabel Cortez

; Ricardi-Branco, Fresia

; Silva, Adalene Moreira

; El Dash, Linda Gentry

; Faria, Rafael Souza

Brazilian Journal of Geology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2014, Volume 44 N. 4 Pages 681 - 689

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O presente artigo introduz a uma metodologia na qual será possível a visualização da distribuição espacial de fitofósseis. Tal metodologia será aplicada a ocorrências da Província Florística do Gondwana presente na borda leste da porção brasileira da Bacia do Paraná durante o Neopaleozóico. Essa província foi escolhida tendo em vista que nela há grande número de publicações referentes às suas ocorrências. Isso torna possível a meta-análise de sua distribuição, uma vez que há ampla gama de informações. O primeiro passo foi a construção de uma base de dados composta, incluindo localização geográfica, geologia e sistemática botânica de cada fóssil de interesse. As informações foram então georreferenciadas para posterior transferência em diversos mapas mostrando vários aspectos da distribuição fossilífera. Através de sua distribuição espacial, se pode contatar que os fitofósseis se encontram amplamente distribuídos em toda a área de estudo. No entanto, alguns gêneros persistem por longos períodos de tempo, já outros somente por curtos intervalos. Ao longo do tempo, a composição fossilífera se transformou gradualmente, desde suas primeiras ocorrências no Grupo Itararé (Neocarbonífero), até a Formação Rio do Rastro (Neopermiano), com o número de gêneros decrescendo de 45 no Grupo Itararé para 11 na Formação Rio do Rasto.

This paper introduces a methodology which makes possible the visualization of the spatial distribution of plant fossils and applies it to the occurrences of the Gondwana Floristic Province present on the eastern border of the Brazilian portion of the Paraná Basin during the Neopaleozoic. This province was chosen due to the existence of a large number of publications referring to their occurrence, so that a meta-analysis of their distribution could be based on ample information. The first step was the construction of a composite database including geographical location, geology, and the botanical systematics of each relevant fossil. The geographical locations were then georeferenced for translation into various maps showing various aspects of the distribution of the fossils. The spatial distribution of the fossil-housing outcrops shows that these are distributed along the area of deposition studied. Although some genera persisted for long periods of time, others lasted for only short intervals. As time passed, the fossil composition underwent a gradual change from the Late Carboniferous (Itararé Group) to the Late Permian (Rio do Rasto Formation), with the number of genera represented decreasing from 45 in the Itararé Group to 11 in the Rio do Rasto Formation.

https://doi.org/10.5327/Z23174889201400040011 2247 downloads

12.

Success factors for reducing maternal and child mortality
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Kuruvilla, Shyama

; Schweitzer, Julian

; Bishai, David

; Chowdhury, Sadia

; Caramani, Daniele

; Frost, Laura

; Cortez, Rafael

; Daelmans, Bernadette

; Francisco, Andres de

; Adam, Taghreed

; Cohen, Robert

; Alfonso, Y Natalia

; Franz-Vasdeki, Jennifer

; Saadat, Seemeen

; Pratt, Beth Anne

; Eugster, Beatrice

; Bandali, Sarah

; Venkatachalam, Pritha

; Hinton, Rachael

; Murray, John

; Arscott-Mills, Sharon

; Axelson, Henrik

; Maliqi, Blerta

; Sarker, Intissar

; Lakshminarayanan, Rama

; Jacobs, Troy

; Jacks, Susan

; Mason, Elizabeth

; Ghaffar, Abdul

; Mays, Nicholas

; Presern, Carole

; Bustreo, Flavia

Bulletin of the World Health Organization

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2014, Volume 92 N. 7 Pages 533 - 544

Abstract: En Es Fr | Text: En Es Fr | PDF: En | PDF: Es | PDF: Fr

Reducing maternal and child mortality is a priority in the Millennium Development Goals (MDGs), and will likely remain so after 2015. Evidence exists on the investments, interventions and enabling policies required. Less is understood about why some countries achieve faster progress than other comparable countries. The Success Factors for Women’s and Children’s Health studies sought to address this knowledge gap using statistical and econometric analyses of data from 144 low- and middle-income countries (LMICs) over 20 years; Boolean, qualitative comparative analysis; a literature review; and country-specific reviews in 10 fast-track countries for MDGs 4 and 5a. There is no standard formula – fast-track countries deploy tailored strategies and adapt quickly to change. However, fast-track countries share some effective approaches in addressing three main areas to reduce maternal and child mortality. First, these countries engage multiple sectors to address crucial health determinants. Around half the reduction in child mortality in LMICs since 1990 is the result of health sector investments, the other half is attributed to investments made in sectors outside health. Second, these countries use strategies to mobilize partners across society, using timely, robust evidence for decision-making and accountability and a triple planning approach to consider immediate needs, long-term vision and adaptation to change. Third, the countries establish guiding principles that orient progress, align stakeholder action and achieve results over time. This evidence synthesis contributes to global learning on accelerating improvements in women’s and children’s health towards 2015 and beyond.

Resumen La reducción de la mortalidad materna e infantil es una prioridad en los Objetivos de Desarrollo del Milenio (ODM), y probablemente lo seguirá siendo después de 2015. Existen evidencias sobre las inversiones, las intervenciones y las políticas necesarias, pero se sabe menos acerca de por qué algunos países logran un progreso más rápido que otros países comparables. Los estudios relativos a los Factores de Éxito en la Salud de las Mujeres y los Niños han tratado de abordar esta brecha de conocimiento por medio de análisis estadísticos y econométricos de datos de 144 países de ingresos bajos y medianos (PIBM) a lo largo de más de 20 años, análisis comparativos cualitativos booleanos, revisión de la literatura y revisiones específicas de cada país en 10 países bien encarrilados para los ODM 4 y 5a. No existe una fórmula estándar, estos países despliegan estrategias a medida y se adaptan rápidamente a los cambios. Sin embargo, comparten ciertos enfoques eficaces a la hora de abordar tres áreas principales para reducir la mortalidad materna e infantil. En primer lugar, involucran a numerosos sectores para hacer frente a los factores sanitarios decisivos. Alrededor de la mitad de la reducción de la mortalidad infantil en los PIBM desde 1990 es el resultado de inversiones en el sector de la salud, y la otra mitad se atribuye a las inversiones realizadas en sectores fuera del ámbito sanitario. En segundo lugar, estos países utilizan estrategias para movilizar a socios a través de la sociedad, utilizando evidencias oportunas y sólidas para la toma de decisiones y la rendición de cuentas, así como un enfoque de planificación triple para considerar las necesidades inmediatas, la visión a largo plazo y la adaptación al cambio. En tercer lugar, los países establecen principios rectores que orientan el progreso, armonizan las acciones de las partes interesadas y logran resultados en el tiempo. Este compendio de evidencias contribuye al aprendizaje global sobre cómo acelerar las mejoras en la salud de mujeres y niños hacia el 2015 y más adelante.

Résumé La réduction de la mortalité maternelle et infantile est une priorité des objectifs du Millénaire pour le développement (OMD) et le restera probablement après l'échéance de 2015. Il existe des données sur les investissements, les interventions et les politiques habilitantes nécessaires. On comprend mal pourquoi certains pays ont réalisé des progrès plus rapidement que d'autres pays comparables. Les Facteurs de réussite des études sur la santé des femmes et des enfants ont cherché à combler ce manque de connaissances en utilisant les analyses statistiques et économétriques des données provenant de 144 pays à faible revenu et à revenu intermédiaire et recueillies depuis 20 ans: une analyse comparative qualitative booléenne; une étude bibliographique et des études spécifiques à chaque pays pour les 10 pays à progression rapide pour les points 4 et 5a des OMD. Il n'existe pas de formule standard – les pays à progression rapide ont déployé des stratégies personnalisées et se sont adaptés rapidement aux changements. Cependant, ces pays ont en commun des approches efficaces visant 3 grands axes afin de réduire la mortalité maternelle et infantile. Premièrement, ils impliquent de nombreux secteurs pour traiter les facteurs déterminants et cruciaux pour la santé. Près de la moitié de la réduction de la mortalité infantile dans les pays à faible revenu et à revenu intermédiaire depuis 1990 résulte des investissements dans le secteur de la santé, l'autre moitié étant attribuée aux investissements réalisés dans les secteurs extérieurs à la santé. Deuxièmement, ces pays utilisent des stratégies pour mobiliser les partenaires dans la société, en utilisant des données solides et opportunes pour la prise de décisions et la responsabilisation, ainsi qu'une approche de planification triple pour prendre en considération les besoins immédiats, la vision à long terme et l'adaptation aux changements. Troisièmement, ces pays établissent des principes directeurs qui orientent les progrès, harmonisent les actions des parties prenantes et génèrent des résultats dans le temps. Cette synthèse de données contribue à l’ensemble des connaissances requises pour accélérer les améliorations sur la santé des femmes et des enfants en vue de l'échéance de 2015 et au-delà.

https://doi.org/10.2471/BLT.14.138131 3788 downloads Cited 3 times in SciELO

13.

Parasitological and immunological diagnoses from feces of captive-bred snakes at Vital Brazil Institute
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Souza, Janaína Lima de

; Barbosa, Alynne da Silva

; Vazon, Adriana Prado

; Uchôa, Claudia Maria Antunes

; Nunes, Beatriz Coronato

; Cortez, Myrian Bandeira Vianna

; Silva, Valmir Laurentino da

; Más, Leonora Brazil

; Melgarejo, Aníbal Rafael

; Bastos, Otilio Machado Pereira

Revista Brasileira de Parasitologia Veterinária

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2014, Volume 23 N. 2 Pages 123 - 128

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Foram analisadas amostras fecais de 56 serpentes do Instituto Vital Brazil, Niterói, Rio de Janeiro, por técnicas de sedimentação e flutuação, para pesquisa de formas evolutivas de parasitos como helmintos e protozoários, e imunoenzimáticas para detecção de antígenos de Cryptosporidium sp. e Giardia sp. Dos animais estudados, 80,3% foram positivos para parasitos, dos quais 16 pertenciam à espécie Bothrops jararaca, 16 à B. jararacussu e 13 à Crotalus durissus. A prevalência de nematódeos parasitos foi de 41,1%, sendo evidenciados nas três espécies de serpentes. Dentre estes, o mais frequente foi o encontro de ovos de Kalicephalus sp., diagnosticado em 25% das serpentes. A positividade para protozoários detectados pelas técnicas de concentração foi de 75%, nas quais oocistos de Caryospora sp. foram detectados em 75%, cistos com morfologia similar a Giardia sp. em 3,6%, cistos de amebídeos em 41,1% e oocistos não esporulados de coccídios em 8,9%. Obteve-se positividade para antígenos de Cryptosporidium sp. por imunoensaio em 60,7%. Pseudoparasitos foram detectados em 64,3%. Estes resultados apontam para a necessidade de aprimoramento do manejo sanitário das serpentes cativas, bem como no biotério que fornece roedores para sua alimentação, destacando a realização periódica de diagnóstico nas amostras fecais de serpentes cativas.

Fecal samples from 56 snakes at the Vital Brazil Institute, in the city of Niterói, Rio de Janeiro, were tested using the sedimentation and flotation techniques to investigate the evolutionary forms of parasites such as helminths and protozoa, and using enzyme immunoassay techniques to detect antigens of Cryptosporidium sp. and Giardiasp. Among the animals tested, 80.3% were positive for parasites. Out of these, there were 16 Bothrops jararaca, 16 B. jararacussu and 13 Crotalus durissus. The prevalence of parasitic nematodes was 41.1%, and nematodes were found in all three snake species. Among these, the most frequent finding was eggs of Kalicephalus sp., which were diagnosed in 25% of the snakes. The positivity for protozoa detected using parasite concentration techniques was 75%, including oocysts of Caryospora sp. in 75%, cysts with morphology similar to Giardia sp. 3.6%, amoeboid cysts in 41.1% and unsporulated coccidia oocysts in 8.9%. Immunoassays for Cryptosporidium sp. antigens produced positive findings in 60.7%. Pseudoparasites were detected in 64.3%. These results show that there is a need to improve the sanitary handling of captive-bred snakes, and also for the animal house that supplies rodents to feed them. The results also highlight that diagnostic tests should be performed periodically on stool specimens from captive-bred snakes.

https://doi.org/10.1590/S1984-29612014032 3895 downloads

14.

Magnetic susceptibility in the prediction of soil attributes in two sugarcane harvesting management systems
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics

Peluco, Rafael G.

; Marques Júnior, José

; Siqueira, Diego S.

; Cortez, Lucas A.

; Pereira, Gener T.

Engenharia Agrícola

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2013, Volume 33 N. 6 Pages 1134 - 1143

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O presente trabalho teve como objetivo investigar o potencial de uso da suscetibilidade magnética (SM) como componente da função de pedotransferência para predição de atributos do solo, sob dois sistemas de manejo na colheita de cana-de-açúcar. Para cada uma das duas áreas de 1 ha (uma com colheita mecanizada de cana crua e outra com colheita manual de cana queimada), foram coletadas 126 amostras de solo que foram submetidas às análises de laboratório, para determinação dos atributos físicos, químicos e mineralógicos do solo e para medição da SM. Os dados foram submetidos à estatística descritiva, calculando-se a média e o coeficiente de variação. Para comparar as médias nos diferentes sistemas de manejo, foi realizado o teste de Tukey, ao nível de significância de 5%. Foram realizados o teste de correlação simples para averiguar a correlação da SM com outros atributos do solo e a regressão múltipla linear a fim de avaliar o quanto a SM contribui para a predição de atributos complexos do solo. Os resultados demonstram que a SM apresentou, em ambos os sistemas de manejo de colheita da cana-de-açúcar, correlação estatística com atributos químicos, físicos e mineralógicos do solo e apresentou potencial para ser utilizada como componente da função de pedotransferência para predição de atributos do Latossolo estudado.

This study aimed to investigate the potential use of magnetic susceptibility (MS) as pedotransfer function to predict soil attributes under two sugarcane harvesting management systems. For each area of 1 ha (one with green sugarcane mechanized harvesting and other one with burnt sugarcane manual harvesting), 126 soil samples were collected and subjected to laboratory analysis to determine soil physical, chemical and mineralogical attributes and for measuring of MS. Data were submitted to descriptive statistics by calculating the mean and coefficient of variation. In order to compare the means in the different harvesting management systems it was carried out the Tukey test at a significance level of 5%. In order to investigate the correlation of the MS with other soil properties it was made the correlation test and aiming to assess how the MS contributes to the prediction of soil complex attributes it was made the multiple linear regressions. The results demonstrate that MS showed, in both sugarcane harvesting management systems, statistical correlation with chemical, physical and mineralogical soil attributes and it also showed potential to be used as pedotransfer function to predict attributes of the studied oxisol.

1872 downloads

15.

Suscetibilidade magnética do solo e estimação da capacidade de suporte à aplicação de vinhaça
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Peluco, Rafael Gonçalves

; Marques Júnior, José

; Siqueira, Diego Silva

; Pereira, Gener Tadeu

; Barbosa, Ronny Sobreira

; Teixeira, Daniel de Bortoli

; Adame, Cássia Rita

; Cortez, Lucas Aguilar

Pesquisa Agropecuária Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2013, Volume 48 N. 6 Pages 661 - 672

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O objetivo deste trabalho foi avaliar a eficiência da suscetibilidade magnética do solo para estimar a capacidade de suporte de áreas à aplicação de vinhaça. Foram coletadas 241 amostras de solo, de uma área de 380 ha, nas quais foram determinados os atributos químicos, os teores de argila e a suscetibilidade magnética do solo. Foram calculadas as doses de vinhaça recomendadas para cada amostra. Os dados foram submetidos à análise estatística descritiva, e foram desenvolvidos modelos de regressão entre a suscetibilidade magnética e os outros atributos avaliados. A análise da dependência espacial dos dados foi feita com uso da geoestatística. Foram construídos mapas de krigagem e variogramas cruzados, para averiguar a correlação espacial entre a suscetibilidade magnética e os atributos estudados. Com base no mapa de recomendação de vinhaça, nas classes de solo e nos mapas de krigagem, foram calculadas as doses médias de vinhaça e as capacidades de suporte médias, ponderadas pela área. A suscetibilidade magnética apresenta correlação espacial linear significativa com as doses de vinhaça recomendadas e com a capacidade de suporte do solo à aplicação desse efluente, e pode ser utilizada como componente da função de pedotransferência, na quantificação indireta da capacidade de suporte.

The objective of this work was to evaluate the magnetic susceptibility efficiency for estimating the support capacity of areas for vinasse application. Two hundred forty-one soil samples were collected from a 380-ha area, on which soil chemical properties, clay content, and magnetic susceptibility were determined. Vinasse requirement was calculated for each sample. Data were subjected to descriptive statistical analysis, and regression models were developed between magnetic susceptibility and the other evaluated attributes. The analysis of data spatial dependence was performed using geostatistics. Kriging maps and cross variograms were built in order to investigate the spatial correlation between soil magnetic susceptibility and studied attributes. Based on the map of vinasse requirement, on the soil classes, and on the kriging map, calculations were done for average vinasse dose and average soil support capacity, weighted by the area. Magnetic susceptibility has significant linear spatial correlation with recommended vinasse doses and soil support capacity for the application of this effluent, and it can be used as a pedotransfer function for indirect quantification of soil support capacity.

https://doi.org/10.1590/S0100-204X2013000600012 3618 downloads Cited 3 times in SciELO

Showing

itens per page

Page of 2 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »