Search | SciELO

Need help?

Add field +

Search history

No documents were found for your search

Results: 20

au:MOTA, J. V.

Filters

Collection + Options

All
Brazil

16
Mexico

2
Spain

1
Portugal

1

Journal + Options

All
Brazilian Journal of Biology

4
Anais da Academia Brasileira de Ciências

1
Arquivo Brasileiro de Medicina Veterinária e Zootecnia

1
Biota Neotropica

1
Cerâmica

1
Ciência & Tecnologia dos Materiais

1
International Journal of Cardiovascular Sciences

1
Journal of Microwaves, Optoelectronics and Electromagnetic Applications

1
Journal of Venomous Animals and Toxins

1
Journal of the Brazilian Chemical Society

1
Madera y bosques

1
Motriz: Revista de Educação Física

1
Pesquisa Veterinária Brasileira

1
Revista Andaluza de Medicina del Deporte

1
Revista Brasileira de Meteorologia

1

Show all...

Language

All
Portuguese

2

Publication Year + Options

All
2018

4
2022

3
2015

2
2019

2
2023

2
1999

1
2009

1
2010

1
2017

1
2020

1
2021

1
2024

1

SciELO Thematic Areas + Options

All
Biological Sciences

7
Agricultural Sciences

4
Health Sciences

4
Engineering

3
Exact and Earth Sciences

2
Multidisciplinary

1

WoS Subject Categories + Options

All
Sciences

7
Biology

4
Multidisciplinary

3
Materials

2
Medicine

2
Science

2
Sport

2
Veterinary

2
Atmospheric

1
Biodiversity

1
Cardiac

1
Cardiovascular

1
Ceramics

1
Chemistry

1
Conservation

1

Show all...

WoS Citation Index + Options

All
Science Citation Index Expanded

10
Social Sciences Citation Index

2

Citables and non citables + Options

All
Citable

19
Non citable

1

Type of Literature + Options

All
Article

17
Abstract

1
Article-commentary

1
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

Insects and spiders on Acacia mangium (Fabaceae) saplings as bioindicators for the recovery of tropical degraded areas
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Lima, J. S.

; Leite, G. L. D.

; Guanabens, P. F. S.

; Soares, M. A.

; Silva, J. L.

; Mota, M. V. S.

; Lemes, P. G.

; Zanuncio, J. C.

Brazilian Journal of Biology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 84 elocation e252088

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

Resumo Acacia mangium é uma espécie pioneira, de rápido crescimento e utilizada na recuperação de áreas degradadas. Os objetivos foram avaliar insetos e aranhas, seus índices ecológicos e interações com plantas de A. mangium em área tropical degradada em processo de recuperação. O delineamento experimental foi inteiramente casualizado com 24 repetições, com os tratamentos representados pelos primeiro e segundo anos após a plantio de A. mangium. Os números de folhas/galhos, galhos/plantas e cobertura do solo por plantas de A. mangium, de Hemiptera: Phenacoccus sp. e Pachycoris torridus; Hymenoptera: Tetragonisca angustula e Trigona spinipes, Brachymyrmex sp., Camponotus sp. e Cephalotes sp.; Blattodea: Nasutitermes sp. e Neuroptera: Chrysoperla sp.; a abundância, riqueza de espécies de insetos polinizadores, formigas cuidadoras e a abundância de predadores de Sternorrhyncha foram maiores no segundo ano após o plantio. Os números de Hemiptera: Aethalium reticulatum, Hymenoptera: Camponotus sp., Cephalotes sp., Polybia sp., T. angustula, T. spinipes, formigas cuidadoras, insetos polinizadores, predadores de Sternorrhyncha e a riqueza de espécies de formigas cuidadoras foram maiores em plantas de A. mangium com maior altura e número de folhas ou galhos. O aumento populacional de artrópodes e da cobertura do solo com o processo de envelhecimento das plantas de A. mangium indicam impacto positivo dessa planta na recuperação de áreas degradadas.

Abstract Acacia mangium is a pioneer species with fast growth and frequently used in the recovery of degraded areas. The objectives were to evaluate insects and spiders, their ecological indices and interactions on A. mangium saplings in a tropical degraded area in recovering process. The experimental design was completely randomized with 24 replications, with treatments represented by the first and second years after A. mangium seedling planted. Numbers of leaves/branch, branches/sapling, and ground cover by A. mangium saplings, Hemiptera: Phenacoccus sp. and Pachycoris torridus; Hymenoptera: Tetragonisca angustula and Trigona spinipes, Brachymyrmex sp., Camponotus sp. and Cephalotes sp.; Blattodea: Nasutitermes sp. and Neuroptera: Chrysoperla sp.; abundance, species richness of pollinating insects, tending ants, and the abundance of Sternorrhyncha predators were greatest in the second year after planting. Numbers of Hemiptera: Aethalium reticulatum, Hymenoptera: Camponotus sp., Cephalotes sp., Polybia sp., T. angustula, T. spinipes, tending ants, pollinating insects, Sternorrhyncha predators and species richness of tending ants were highest on A. mangium saplings with greatest numbers of leaves or branches. The increase in the population of arthropods with ground cover by A. mangium saplings age increase indicates the positive impact by this plant on the recovery process of degraded areas.

https://doi.org/10.1590/1519-6984.252088 91 downloads

Chewing insects, pollinators, and predators on Acacia auriculiformis A. Cunn. ex Beth (Fabales: Fabaceae) plants fertilized with dehydrated sewage sludge
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Mota, M. V. S.

; Demolin-Leite, G. L.

; Guanabens, P. F. S.

; Teixeira, G. L.

; Soares, M. A.

; Silva, J. L.

; Sampaio, R. A.

; Zanuncio, J. C.

Brazilian Journal of Biology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 83 elocation e248305

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

Resumo A fertilização com lodo de esgoto desidratado pode acelerar o processo de recuperação de áreas degradadas devido à concentração de nutrientes, favorecendo o desenvolvimento de plantas pioneiras tais como Acacia auriculiformis A. Cunn. ex Beth (Fabales: Fabaceae) e de seus insetos. O objetivo deste trabalho foi avaliar os insetos mastigadores, polinizadores e predadores e seus índices e relações ecológicas em plantas de A. auriculiformis fertilizadas com lodo de esgoto desidratado, em área degradada, durante 24 meses. O delineamento foi inteiramente casualizados com dois tratamentos (com e sem adubação com lodo de esgoto desidratado) e 24 repetições (uma repetição = uma planta). O maior número de insetos mastigadores Parasyphraea sp. (Coleoptera: Chrysomelidae), Nasutitermes sp. (Blattodea: Termitidae) e Tropidacris collaris (Stoll, 1813) (Orthoptera: Romaleidae), de desfolha, e do índice ecológico abundância de Coleoptera e de Orthoptera foram maiores em plantas de A. auriculiformis fertilizadas do que nas não fertilizadas com lodo de esgoto desidratado. Plantas de A. auriculiformis, com maior quantidade de galhos/árvore, apresentaram maiores abundâncias de Coleoptera e Orthoptera, riqueza de espécies de insetos polinizadores, desfolha e números de Parasyphraea sp. e T. collaris, e as com maior folhas/galho os de riqueza de espécies de Coleoptera e Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae). Por tanto, a utilização de A. auriculiformis, adubada com lodo de esgoto desidratado, é promissora na recuperação de áreas degradadas devido ao aumento dos índices ecológicos de insetos mastigadores, polinizadores e aranhas na área.

Abstract Fertilization with dehydrated sewage sludge can speed up the recovery process of degraded areas due to nutrients concentration, favoring the development of pioneer plants such as Acacia auriculiformis A. Cunn. ex Beth (Fabales: Fabaceae) and the emergence of insects. This study aimed the evaluation of chewing, pollinating insects, predators, their ecological indices and relationships on A. auriculiformis plants fertilized with dehydrated sewage sludge. The experimental design was completely randomized with two treatments (with and without dehydrated sewage sludge) and 24 repetitions. The prevalence of chewing insects Parasyphraea sp. (Coleoptera: Chrysomelidae), Nasutitermes sp. (Blattodea: Termitidae), and Tropidacris collaris (Stoll, 1813) (Orthoptera: Romaleidae), defoliation, and ecological indices of abundance of Coleoptera and Orthoptera were observed on fertilized A. auriculiformis. Acacia auriculiformis plants, with a superior number of branches/tree, revealed greater abundance of Coleoptera and Orthoptera, species richness of pollinating insects, defoliation, numbers of Parasyphraea sp. and T. collaris. The ones with larger leaves/branches displayed greater abundance of species richness of Coleoptera and Diabrotica speciosa (Germar, 1824) (Coleoptera: Chrysomelidae). Therefore, the use of A. auriculiformis plants, fertilized with dehydrated sewage sludge, is promising in the recovery of degraded areas due to the ecological indices increase of chewing and pollinators insects and spiders in the analyzed area.

https://doi.org/10.1590/1519-6984.248305 94 downloads

Prevalence and Association Between Cognition, Anxiety, and Depression in Patients Hospitalized with Heart Failure
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Soares, Vivian L.

; Pereira, Carolina

; Carvalho, Ana Carla

; Mota, Tarsila Perez

; Groehs, Raphaela V.

; Bacal, Fernando

; Matos, Luciana Diniz Nagem Janot de

International Journal of Cardiovascular Sciences

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 36 elocation e20210226

Abstract: En | Text: En | PDF: En

Abstract Background Cognitive impairment, anxiety, and depression are present in patients with heart failure (HF), but their mutual correlation in hospitalized patients is not well established. Objectives The aims of this study were to identify the presence of cognitive impairment and the most affected domain, to investigate possible associations of cognitive impairment with depression and/or anxiety, and to observe whether they correlated with occurrence of readmission within 30 days following hospital discharge. Methods This is a prospective observational study including patients with HF from a private hospital. Psychological distress and cognition were evaluated by the Hospital Anxiety and Depression Scale (HADS) and by the Mini Mental State Exam (MMSE), respectively. Clinical data were obtained from the medical record at the time of inclusion, and outpatient follow-up was performed 30 days after discharge via telephone calls. Results This study included 71 patients (83% men, 75 ± 11 years). Cognitive impairment was present in 53.5% of the patients, and recall memory was the most altered cognitive domain. The proportion of possible/probable anxiety and depression was 21.1% and 34.2% in patients with cognitive impairment, respectively. However, only depression demonstrated association with cognitive impairment (p = 0.018). Cognitive impairment, anxiety, and depression showed no relationship with the occurrence of readmission within 30 days. Conclusions Cognitive impairment and depressive symptoms are prevalent and associated, and recall memory was the most altered cognitive domain in patients hospitalized with HF. However, there was no relationship between these factors and readmission within 30 days.

https://doi.org/10.36660/ijcs.20210226

Safety and Revisit Related to Discharge the Sixty-one Spanish Emergency Department Medical Centers Without Hospitalization in Patients with COVID-19 Pneumonia. A Prospective Cohort Study UMC-Pneumonia COVID-19
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Jacob, Javier

; Albert-Casado, Arantxa

; Castillo, Juan G. Del

; Llorens-Soriano, Pere

; Jiménez-Hernández, Sonia

; Burillo-Putze, Guillermo

; Martín-Martínez, Alfonso

; Martín-Sánchez, Francisco J.

; García-Lamberechts, Eric J.

; Piñera-Salmerón, Pascual

; Alquézar-Arbé, Aitor

; Ferre-Losa, Carles

; Juan-Gómez, María Á.

; Serrano-Lázaro, Leticia

; Noceda-Bermejo, José

; Salido-Mota, Manuel

; Fortuny-Bayarri, María J.

; González-Tejera, Matilde

; Ferreras-Amez, José M.

; Díaz-Fernández, Elena

; Quero-Motto, Eva

; Peiró-Gómez, Ana

; Martín-Mojarro, Enrique

; Llopis-Roca, Ferran

; Huerta-García, Arturo

; Pedraza-García, Jorge

; Meléndez-Cálix, Napoleón

; Brazó-Aznar, José V.

; Cano-Cano, María J.

; Miró, Óscar

Revista de investigación clínica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2022, Volume 74 N. 3 Pages 135 - 146

Abstract: En | Text: En | PDF: En

ABSTRACT Background: Information is needed on the safety and efficacy of direct discharge from the emergency department (ED) of patients with COVID-19 pneumonia. Objectives: The objectives of the study were to study the variables associated with discharge from the ED in patients presenting with COVID-19 pneumonia, and study ED revisits related to COVID-19 at 30 days (EDR30d). Methods: Multicenter study of the SIESTA cohort including 1198 randomly selected COVID patients in 61 EDs of Spanish medical centers from March 1, 2020, to April 30, 2020. We collected baseline and related characteristics of the acute episode and calculated the adjusted odds ratios (aOR) for ED discharge. In addition, we analyzed the variables related to EDR30d in discharged patients. Results: We analyzed 859 patients presenting with COVID-19 pneumonia, 84 (9.8%) of whom were discharged from the ED. The variables independently associated with discharge were being a woman (aOR 1.890; 95%CI 1.176-3.037), age < 60 years (aOR 2.324; 95%CI 1.353-3.990), and lymphocyte count > 1200/mm3 (aOR 4.667; 95%CI 1.045-20.839). The EDR30d of the ED discharged group was 40.0%, being lower in women (aOR 0.368; 95%CI 0.142-0.953). A total of 130 hospitalized patients died (16.8%) as did two in the group discharged from the ED (2.4%) (OR 0.121; 95%CI 0.029-0.498). Conclusion: Discharge from the ED in patients with COVID-19 pneumonia was infrequent and was associated with few variables of the episode. The EDR30d was high, albeit with a low mortality.

https://doi.org/10.24875/ric.22000021 8 downloads

Quadrastichus mendeli (Hymenoptera: Eulophidae): parasitism on Leptocybe invasa (Hymenoptera: Eulophidae) and first record in Brazil
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Puretz, B. O.

; Gonzalez, C. J.

; Mota, T. A.

; Dallacort, S.

; Carvalho, V. R.

; Silva, R. M. L.

; Serrão, J. E.

; Zanuncio, J. C.

; Wilcken, C. F.

Brazilian Journal of Biology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 82 elocation e264771

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/1519-6984.264771

The butterflies of Cristalino Lodge, in the Brazilian southern Amazonia: An updated species list with a significant contribution from citizen science
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Mota, Luísa L.

; Boddington, Stephen J.

; Brown Jr., Keith S.

; Callaghan, Curtis J.

; Carter, Gill

; Carter, Will

; Dantas, Sidnei M.

; Dolibaina, Diego R.

; Garwood, Kim

; Hoyer, Richard C.

; Robbins, Robert K.

; Soh, Aaron

; Willmott, Keith R.

; Freitas, André V. L.

Biota Neotropica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, Volume 22 N. 3 elocation e20221367

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

Resumo As comunidades de borboletas mais ricas do mundo são encontradas na Amazônia. Apesar disso, e da importância dos inventários de espécies para o conhecimento dos padrões de diversidade, existem poucas listas abrangentes de borboletas para localidades da Amazônia brasileira. Aqui, apresentamos uma lista atualizada das borboletas do Cristalino Lodge (Alta Floresta, Mato Grosso, Brasil), no sul da Amazônia, baseada em espécimes coletados por pesquisadores e em registros fotográficos feitos por ecoturistas, observadores de borboletas e guias turísticos. Com 1010 espécies registradas, essa é atualmente a maior lista de borboletas publicada para uma localidade no Brasil e a primeira a atingir 1000 espécies, sendo mais de um terço dos registros provenientes da ciência cidadã. A região apresenta cerca de 29% das espécies de borboletas do Brasil e uma das maiores riquezas conhecidas no país, inferior apenas a áreas no oeste da Amazônia. Sua fauna é composta principalmente por espécies amplamente distribuídas na planície amazônica, com adição de algumas típicas do Cerrado. Possui um número relativamente baixo de espécies da tribo Ithomiini (Nymphalidae: Danainae), que é geralmente considerada uma boa indicadora da riqueza total de borboletas em florestas neotropicais, o que aponta para a necessidade de cautela ao se usar um grupo taxonômico como previsor da riqueza de comunidades inteiras. O presente trabalho destaca a importância da ciência cidadã e dos centros de ecoturismo para inventários e dados sobre distribuição de espécies em florestas tropicais diversas.

Abstract The richest butterfly communities in the world are found in the Amazon rainforest. Despite of this, and the importance of species inventories for the knowledge of diversity patterns, there are few comprehensive lists of butterflies for localities in the Brazilian Amazon. Here, we present an updated list of the butterflies of Cristalino Lodge (Alta Floresta, Mato Grosso, Brazil), in southern Amazonia, based on specimens collected by researchers and photographic records taken by ecotourists, butterfly watchers, and tour guides. With 1010 species recorded, this is currently the largest list of butterflies published for a single locality in Brazil and the first to reach (and surpass) 1000 species, with more than one third of the records coming from citizen science. The region has about 29% of the butterfly species in Brazil and one of the greatest richnesses known in the country, inferior only to areas in the western Amazon. Its fauna is mainly composed of species widely distributed in lowland Amazonia, with the addition of some species typical of the Cerrado. It has a relatively low number of species of the tribe Ithomiini (Nymphalidae: Danainae), generally considered a good indicator of the total butterfly diversity in neotropical forests, which points to the need for caution when using a single taxonomic group as a surrogate of richness of entire communities. The present work highlights the importance of citizen science and ecotourism centers for inventories and data on species distribution in diverse tropical forests.

https://doi.org/10.1590/1676-0611-bn-2022-1367

Biodiesel: An Overview II
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Rezende, Michelle J. C.

; Lima, Ana Lúcia de

; Silva, Bárbara V.

; Mota, Claudio J. A.

; Torres, Ednildo A.

; Rocha, Gisele O. da

; Cardozo, Ingrid M. M.

; Costa, Kênia P.

; Guarieiro, Lilian L. N.

; Pereira, Pedro A. P.

; Martinez, Sabrina

; Andrade, Jailson B. de

Journal of the Brazilian Chemical Society

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2021, Volume 32 N. 7 Pages 1301 - 1344

Abstract: En | Text: En | PDF: En

The crescent number of scientific articles published per year shows that research on biodiesel continues to play an important role to support the growing demand for this biofuel. The second edition of Biodiesel: An Overview presents the worldwide research in the last 15 years. Microalgae biomass is the most studied raw material alternative in this period and several studies have been carried out to develop basic heterogeneous catalysts for biodiesel production. Concerning to production technologies, supercritical conditions and intensification process have been extensively investigated. The development of new antioxidants additives has focused mainly on biomass-derived formulations and there are few studies on biocide candidates. In terms of pollutant emissions, in general, the studies showed that the addition of biodiesel generates lower concentrations of polycyclic aromatic hydrocarbons (PAH), CO and n-alkanes pollutants, but carbonyl compounds, major ions and NOx are emitted in a higher concentration compared to pure diesel.

https://doi.org/10.21577/0103-5053.20210046 199 downloads

Effects of storage temperature and time on false setting behavior of CPI-S Portland cement
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Mota, R. M.

; Silva, A. S.

; Ramos, V. H. S.

; Rezende, J. C. T.

; Jesus, E. de

Cerâmica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2020, Volume 66 N. 379 Pages 321 - 329

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

Resumo Falsa pega é a denominação dada ao enrijecimento prematuro anormal do cimento em poucos minutos após a adição de água. Alguns fatores podem ocasionar falsa pega no cimento Portland CPI-S-32, por exemplo, concentração de álcalis no cimento, formação de alita (C3S) com baixa reatividade e temperatura e tempo de armazenamento do cimento nos silos. O aumento da temperatura causa a desidratação do sulfato de cálcio di-hidratado formando o hemi-hidrato (CaSO4.0,5H2O) ou anidrita (CaSO4), que causa a falsa pega. Assim, neste trabalho foi avaliada a influência da temperatura de armazenamento do clínquer (100, 105, 110, 120 e 130 °C) combinada com o tempo de armazenamento do cimento (30, 60 e 120 min) no comportamento de falsa pega do CPI-S-32. Foi verificado que temperatura de armazenamento acima de 110 °C e tempo de armazenamento acima de 60 min são condições que favorecem a falsa pega do cimento CPI-S-32. Análises físico-químicas, TG/DTG, FRX e DRX foram utilizadas como análises complementares aos ensaios de falsa pega do CPI-S-32.

Abstract The false setting is when cement stiffens prematurely in a few minutes after adding water. Some variables could cause false setting in CPI-S-32 Portland cement, for example, alkali concentration in the cement, the formation of alite (C3S) with low reactivity, and cement storage temperature and time in silos. Temperature increases cause calcium sulfate dihydrate to dehydrate, forming hemihydrate (CaSO4.0.5H2O) or anhydrite (CaSO4), which causes the false setting. In this study, the influence of cement storage temperature (100, 105, 110, 120, and 130 °C) combined with the cement storage time (30, 60, and 120 min) in a silo was studied regarding the CPI-S-32 false setting behavior. It was verified that temperatures above 110 °C and storage time above 60 min are conditions that favor the false setting of CPI-S-32 cement. Physicochemical analysis, TG/DTG, XRF, and XRD were applied as complementary analyzes for the false setting assays of CPI-S-32.

https://doi.org/10.1590/0366-69132020663792842 1301 downloads

Influence of Vegetation on the Outdoor-to-Indoor Mobile Radio Propagation in 700 MHz Band
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ribeiro, Leonardo G.

; Matos, Leni J.

; Castellanos, Pedro V. G.

; Moura, Matheus B.

; Mota, Vitor L. G.

; Meza, Wyliam D. T.

Journal of Microwaves, Optoelectronics and Electromagnetic Applications

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jul 2019, Volume 18 N. 3 Pages 427 - 438

Abstract: En | Text: En | PDF: En

Abstract Starting from outdoor transmission, crossing vegetation, the wideband and narrowband characterization of the indoor mobile radio channel in the 700 MHz band is obtained from experiments carried out in the indoor environment of the Engineering building at Fluminense Federal University, and from the processed data, respectively, the power-delay profiles obtained permitted to calculate the time dispersion parameters and the envelope of the signal permitted to adjust probability density functions to the signal variability, concluding about the influence of vegetation on those characteristics.

https://doi.org/10.1590/2179-10742019v18i31628 696 downloads

10.

Ocurrence and risk factors associated with Mycoplasma agalactiae infection in dairy goat herds of Paraíba State, Brazil
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Matos, Rodrigo A.T.

; Santos, Sandra B.

; Alves, Renato V.

; Silva, Ednaldo J.

; Marinho, Melânia L.

; Júnior, José Wilton P.

; Mota, Rinaldo A.

; Garino Júnior, Felicio

Pesquisa Veterinária Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

feb 2019, Volume 39 N. 2 Pages 93 - 98

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

RESUMO: As micoplasmoses ocasionam prejuízos econômicos nas criações de ovinos e caprinos, e estão associados com quadros de mastite, poliartrite, agalaxia, conjuntivite, pneumonia e falhas reprodutivas. Objetivou-se neste estudo determinar a ocorrência de Mycoplasma agalactiae em amostras de leite e investigar os principais fatores de risco associados à infecção em caprinos provenientes de propriedades rurais do estado da Paraíba, Brasil. Para o diagnóstico de Mycoplasma agalactiae, foram analisadas 251 amostras de leite, que foram submetidas à extração do DNA genômico usando um kit comercial, seguindo as recomendações do fabricante. Para diagnóstico da infecção utilizou-se a Reação em Cadeia da Polimerase (PCR). Além disso, foram aplicados questionários para identificar os principais fatores de risco associados infecção à agalaxia contagiosa. Das 251 amostras analisadas, 50 (19,9%; I.C. 15,1-25,4%) foram positivas na PCR para M. agalactiae. Observaram-se na análise dos fatores de risco, algumas associações para as seguintes variáveis: tamanho do rebanho (P<0,001; OR 7,1), reposição de animais da propriedade (P<0,001; OR 4,7) e participação dos animais em feiras e exposições (P= 0,029; OR 2,0). Os resultados permitiram confirmar a ocorrência do Mycoplasma agalactiae em amostras de leite de caprinos da Paraíba. Portanto, é necessário o monitoramento dos rebanhos caprinos leiteiros e a conscientização dos produtores rurais para a importância econômica da doença, visto que a mesma acarreta severos prejuízos econômicos para os produtores do estado. A identificação dos fatores de risco são imprescindíveis para a adoção de medidas de controle e para a correção dos fatores de manejo em propriedades que tenham animais com diagnóstico positivo, evitando assim, a disseminação do patógeno.

ABSTRACT: Mycoplasmosis is a disease that may cause severe economical losses in goat and sheep herds, and it is associated with mastitis, polyarthritis, agalactia, conjunctivitis, pneumonia and reproductive failure. The objective of this study was to determine the occurrence of Mycoplasma agalactiae in milk samples and investigate the main risk factors associated with infection in goats from farms of the state of Paraíba, Brazil. For Mycoplasma agalactiae diagnosis, 251 milk samples were submitted to DNA extraction using a commercially available kit, following the manufacturer’s instructions and Polymerase Chain Reaction (PCR) was performed. In addition, questionnaires were applied to identify the main risk factors associated with contagious agalactia. Out of the two hundred fifty-one samples analyzed, 50 (19.9%, I.C. 15.1-25.4%) were PCR positive for M. agalactiae. In the risk factors analysis, some associations were observed for the following variables: size of the herd (P<0.001, OR=7.1, I.C. 2.4-20.6), replacement of farm animals (P<0.001, OR=4.7, I.C. 1.8-12.2) and participation of animals in fairs and exhibitions (P=0.029, OR=2.0, I.C.1.0-3.9). The results allowed confirming the occurrence of Mycoplasma agalactiae in milk samples of goats from Paraíba. Therefore, it is strictly necessary to monitor dairy goat flocks and to raise the awareness of farmers about the economic importance of the disease, since it causes severe economic losses for producers of the state. Identification of risk factors is essential for adoption of control measures and for the correction of the management factors in farms where there are animals with positive diagnosis, avoiding, so, pathogen dissemination.

https://doi.org/10.1590/1678-5150-pvb-5538 917 downloads

11.

Molecular characterization of Moenkhausia (Pisces: Characiformes) populations with different lateral line developmental levels
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

MOTA, THAÍS F.M.

; FABRIN, THOMAZ M.C.

; DEPRÁ, GABRIEL C.

; GASQUES, LUCIANO S.

; OLIVEIRA, ALESSANDRA V. DE

; PAVANELLI, CARLA S.

; PRIOLI, SÔNIA M.A.P.

; PRIOLI, ALBERTO J.

Anais da Academia Brasileira de Ciências

Journal Metrics
- Sobre o periódico
- SciELO Analytics

sep 2018, Volume 90 N. 3 Pages 2815 - 2825

Abstract: En | Text: En | PDF: En

ABSTRACT The genera Hemigrammus and Moenkhausia have been traditionally diagnosed mainly by the former having lateral line completely pored whereas the latter having a lateral line with a few pored scales. Those features have been used to diagnose species of both genera in the upper Paraná River floodplain. Specimens with the diagnostic features of Moenkhausia bonita, collected in the upper Paraná River floodplain, exhibited different developmental levels of the lateral line, making it difficult to distinguish them from specimens of Hemigrammus sp. We analyzed the gene encoding cytochrome C oxidase I (COI) and intron 1 of the nuclear gene S7 to investigate the genetic similarities between the called Hemigrammus marginatus and M. bonita and to confirm their identities. Molecular sequences of other Moenkhausia species were analyzed for genus delimitation tests. The results reveal genetic similarities of M. bonita specimens with different developmental levels of the lateral line, and also distinguish between M. bonita and Hemigrammus sp. Species delimitation tests revealed that specimens from the upper Paraná River floodplain were M. bonita and were distinct from other Moenkhausia species. The developmental level of the lateral line is not a consistent characteristic that distinguishes between Moenkhausia and Hemigrammus species.

https://doi.org/10.1590/0001-3765201820170493 724 downloads

12.

Airborne fungi in an intensive care unit
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gonçalves, C. L.

; Mota, F. V.

; Ferreira, G. F.

; Mendes, J. F.

; Pereira, E. C.

; Freitas, C. H.

; Vieira, J. N.

; Villarreal, J. P.

; Nascente, P. S.

Brazilian Journal of Biology

Journal Metrics
- Sobre o periódico
- SciELO Analytics

may 2018, Volume 78 N. 2 Pages 265 - 270

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

Resumo A presença de fungos anemófilos nas UTIs está associada com o aumento de infecções nosocomiais. O objetivo deste estudo foi isolar e identificar quais os principais fungos anemófilos presentes em uma Unidade de Terapia Intensiva (UTI) de um Hospital Universitário de Pelotas – RS, na tentativa de conhecer a microbiota ambiental do local. Através de 40 placas de Petri com Agar Sabouraud dextrose expostas no ambiente de UTI foram coletadas amostras por exposição em locais estratégicos durante períodos da manhã e tarde por dez dias. Sete gêneros fúngicos foram identificados: Penicillium spp. (15,18%), o gênero de maior frequência, seguido de Aspergillus spp., Cladosporium spp., Fusarium spp., Paecelomyces spp., Curvularia spp., Alternaria spp., além de Zigomicetos e micélios estéreis. Houve predomínio de Aspergillus spp. (13,92%) pela manhã e Cladosporium spp. (13,92%) a tarde. Por estarem envolvidos em diferentes enfermidades, os gêneros identificados podem ser classificados como patógenos em potencial aos pacientes internados. Estes resultados reforçam a necessidade de um monitoramento dos micro-organismos ambientais com maior freqüência e eficiência nas instituições de saúde.

Abstract The presence of airborne fungi in Intensive Care Unit (ICUs) is associated with increased nosocomial infections. The aim of this study was the isolation and identification of airborne fungi presented in an ICU from the University Hospital of Pelotas – RS, with the attempt to know the place’s environmental microbiota. 40 Petri plates with Sabouraud Dextrose Agar were exposed to an environment of an ICU, where samples were collected in strategic places during morning and afternoon periods for ten days. Seven fungi genera were identified: Penicillium spp. (15.18%), genus with the higher frequency, followed by Aspergillus spp., Cladosporium spp., Fusarium spp., Paecelomyces spp., Curvularia spp., Alternaria spp., Zygomycetes and sterile mycelium. The most predominant fungi genus were Aspergillus spp. (13.92%) in the morning and Cladosporium spp. (13.92%) in the afternoon. Due to their involvement in different diseases, the identified fungi genera can be classified as potential pathogens of inpatients. These results reinforce the need of monitoring the environmental microorganisms with high frequency and efficiently in health institutions.

https://doi.org/10.1590/1519-6984.06016 2263 downloads

13.

Predictors of health-related quality of life among Brazilian former athletes
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Barbosa Filho, V. Cordeiro

; Oppa, D. Ferreira

; Mota, J.

; Mendes de Sá, S.A.

; Lopes, A. da Silva

Revista Andaluza de Medicina del Deporte

Journal Metrics
- Sobre o periódico
- SciELO Analytics

mar 2018, Volume 11 N. 1 Pages 23 - 29

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

Abstract Objective: To identify predictors of health-related quality of life (HRQoL) among former athletes. Method: This cross-sectional study included 186 subjects (64% male, aged 40-64 years), representing 51.4% of former athletes from the Jogos Abertos de Santa Catarina (1960-2006). The Short Form Health Survey (SF-36) was used to assess HRQoL (Physical Health and Mental Health summary scores). Sociodemographic variables (gender, age, education, occupation, marital status and income), health status (body mass index, medication use, chronic problems, sports injuries that affect current daily living and health guidance from their coaches), time since they stopped competing and leisure-time physical activity were exploratory variables. Multivariate linear regression models were used. Results: Sports injuries that affect current daily living (standardised score [β] = —0.430 and —0.133), body mass index (β = —0.226 and —0.238) and chronic problems (β = —0.138 and —0.144) were predictors of both Physical Health and Mental Health. Prescription medicine (β = —0.177) and occupation (β = 0.095) predicted only Physical Health scores, and income (β = 0.224) predicted only Mental Health scores (all p < 0.05). Conclusion: These variables can be focused on HRQoL promotion strategies among former athletes.

Resumo Objetivo: Identificar os preditores da qualidade de vida relacionada à saúde (QVRS) em ex-atletas. Método: Estudo transversal que incluiu 186 indivíduos (64% de homens, idades de 40-64 anos), representando 51.4% dos ex-atletas medalhistas do atletismo nos Jogos Abertos de Santa Catarina (1960-2006). O instrumento Short Form Health Survey (SF-36) foi utilizado para mensurar a QVRS (sumários saúde física e saúde mental). Variáveis sociodemográficas (sexo, idade, educação, ocupação, estado civil e renda), estado de saúde (índice de massa corporal [IMC], uso de medicamentos, doenças crônicas, lesões esportivas que atrapalham o cotidiano atual e orientações de saúde pelos treinadores), o tempo aposentado de competições e atividade física no lazer foram variáveis exploratórias. A regressão linear multivariada foi utilizada. Resultados: Lesões esportivas que atrapalham o cotidiano (escore padronizado [β] = —0.430 e —0.133), índice de massa corporal (β = —0.226 e —0.238) e doenças crônicas (β = —0.138 e —0.144) foram preditores da saúde física e saúde mental. Medicamentos prescritos (β = —0.177) e ocupação (β = 0.095) predisseram a saúde física, enquanto que renda (β = 0.224) foi preditor da saúde mental (p < 0.05). Conclusão: Essas variáveis podem ser focadas na promoção de QVRS em ex-atletas.

Resumen Objetivo: Identificar predictores de calidad de vida relacionada con la salud (CVRS) en exatletas. Método: Este estudio transversal incluyó 186 sujetos (64% hombres, con edades entre 40-64 años), lo que representa el 51.4% de los exatletas de los Jogos Abertos de Santa Catarina (1960-2006). El Short Form Health Survey (SF-36) se utilizó para evaluar la CVRS. Las variables sociodemográficas (sexo, edad, educación, ocupación, estado civil e ingresos económicos), el estado de salud (índice de masa corporal, uso de medicamentos, problemas crónicos, lesiones deportivas que afectan a la vida diaria actual y la orientación hacia la de salud de sus entrenadores), el tiempo desde que dejaron de competir y la actividad física en el tiempo libre fueron las variables exploratorias. Se utilizaron modelos de regresión lineal multivariante. Resultados: Las lesiones deportivas que afectan a la vida diaria actual (standardised score [β] = —0.430 y —0.133), el Índice de Masa Corporal (β = —0.226 y —0.238) y los problemas crónicos (β = —0.138 y —0.144) fueron predictores tanto de la salud física como de la salud mental. El uso de medicamentos (β = —0.177) y la ocupación (β = 0.095) predijeron sólo las puntuaciones de salud física, y los ingresos (β = 0.224) predijeron sólo las puntuaciones de salud mental (todas las p < 0.05). Conclusión: Estas variables pueden ser focos importantes para las estrategias de promoción de la CVRS en los exatletas.

https://doi.org/10.1016/j.ramd.2016.02.010 379 downloads

14.

The acute hypotensive effect of resistance training performed with machines vs free weights in normotensive men
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Bruno V. C. da

; Simim, Mário A. M.

; Viegas, Lorena Carolina Reis

; Brígido, Thaís Soares

; da Silva, Ronaldo Ângelo Dias

; Oranchuk, Dustin J.

; da Mota, Gustavo Ribeiro

Motriz: Revista de Educação Física

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2018, Volume 24 N. 2 elocation e1018173

Abstract: En | Text: En | PDF: En

Abstract AIMS To analyze if different resistance training (machine vs free weight) would have different acute hypotensive effect in active and normotensive individuals. METHODS Fifteen male volunteers (39.2±2.5 years) performed two different resistance exercise protocols, one on machinery and one with free weights for the similar muscle groups and volume (sets x repetitions). Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured at rest and during 60 minutes after the sessions. RESULTS There was no interaction between (treatments vs time) for SBP (F 70, 84 = 0.9445, p = 0.595) and DBP (F 70, 84 = 0.5743, p = 0.991). However, significant differences for time for SBP (F 14, 84 = 7.058, p = 0.001) and DBP (F 14, 84 = 3.296, p = 0.001), and treatment for SBP (F 5, 6 = 291.1, p = 0.001) and DBP (F 5, 6 = 13.29, p = 0.003) were varified. CONCLUSION Our findings indicate that both resistance training (machine or free weight) induce a similar hypotensive response for SBP in normotensive men.

https://doi.org/10.1590/s1980-6574201800020015 948 downloads

15.

Predicción de diámetro normal, altura y volumen de Abies religiosa a partir del diámetro del tocón
Facebook Twitter

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

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

García-Cuevas, Xavier

; Hernández-Ramos, Jonathan

; García-Magaña, J. Jesús

; Hernández-Ramos, Adrián

; Herrera-Ávila, Victorino

; González-Peralta, Alfredo

; Garfias-Mota, Enrique Jonathan

Madera y bosques

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2017, Volume 23 N. 3 Pages 61 - 70

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

Abstract Control and monitoring of forest management, conducting forest audits in harvested areas and / or quantify short clandestine, requires the estimation of the normal diameter (d), total height (h) or volume (v) to characterize the original stand and from it, estimate the extracted volumes. When the tree no longer exists, not taken as the normal diameter (d), but the estimation of the same or other variables can be performed depending of the stump diameter (dt). This allometric relationship can be used to calculate the missing volumes. Therefore, the aim was to adjust equations that describe the normal diameter, height and volume as a function of the diameter of the tree stump of Abies religiosa (Kunth) Schltdl. et Cham. in Tancítaro, Michoacan, Mexico. Through sampling of 71 sites and 1745 data pairs dt-d, dt-h and dt-v; including all diametric and heights categories. By Proc Model and maximum likelihood method, linear and nonlinear models were fitted to predict d, h and v. Based on the level significance of parameters of the models, their estimates of goodness of fit test normality of the data and the predictive capacity thereof, we can inferred that these are valid to predict d, h and v in dt function. All models explained above 91% of the data variability.

Resumen En el control y supervisión del manejo forestal, realizar auditorías en zonas aprovechadas y/o cuantificar cortas clandestinas requiere la estimación del diámetro normal (d), altura total (h) o volumen (v) para caracterizar la masa original y a partir de ella, estimar los volúmenes extraídos. Cuando el árbol ya no existe, no se tiene la medida del diámetro normal (d), pero la estimación del mismo o de otras variables se puede realizar en función del diámetro del tocón (dt). Esta relación alométrica puede utilizarse para calcular los volúmenes faltantes. El objetivo fue ajustar ecuaciones que describan el diámetro normal, altura y volumen como una función del diámetro del tocón de árboles de Abies religiosa (Kunth) Schltdl. et Cham., en Tancítaro, Michoacán, México. Se realizó un muestreo en 71 sitios y 1745 pares de datos dt-d, dt-h y d-v; incluyendo todas las categorías diamétricas y de alturas. En SAS 9.0, usando procedimiento Model y el método de máxima verosimilitud, se ajustaron modelos lineales y no lineales para predecir d, h y v. Con base en el nivel de significancia de los parámetros de los modelos, sus estimadores de bondad de ajuste, la prueba la normalidad de los datos, homogeneidad de varianza, autocorrelación de los errores y la capacidad predictiva de los mismos, se puede inferir que estos son válidos para predecir el d, h y v en función del dt. Todos los modelos explican más de 91% de la variabilidad de los datos.

https://doi.org/10.21829/myb.2017.2331528 978 downloads

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 »