Pesquisa | SciELO

Resumo O panorama das problemáticas urbanas evidencia questões relacionadas à diminuição e ao comprometimento da qualidade de vida nas cidades. Nesse sentido, as áreas verdes são importantes variáveis para a avaliação da qualidade vida e do bem-estar urbanos. Sob essa ótica, o trabalho objetiva avaliar a qualidade de vida das pessoas a partir da percepção de frequentadores dos dois parques urbanos mais antigos de João Pessoa, PB: o Parque Solon de Lucena (PSL) e o Parque Zoobotânico Arruda Câmara (Pzac). Para isso, foi desenvolvido o índice de bem-estar em áreas verdes (Ibeav), metodologia proposta e adaptada do índice de bem-estar urbano (Ibeu) com indicadores definidos a partir das dimensões mobilidade e acessibilidade, condições ambientais urbanas, condições habitacionais urbanas, serviços coletivos urbanos e infraestrutura urbana. Os resultados obtidos para o Ibeav foram 0,80155 para o PSL e 0,7716 para o Pzac, que indicam boas e médias condições de qualidade de vida, respectivamente. Assim, por meio da metodologia aplicada nos dois parques urbanos, foi possível identificar as dimensões e os indicadores que contribuem para ampliar e/ou reduzir o índice de qualidade de vida de cada espaço avaliado.

Abstract The current panorama of urban problems highlights issues related to a diminishing and deteriorating quality of life in cities. In this context, green areas are important variables for the evaluation of urban life quality and wellbeing. Hence, the purpose of this study is to evaluate the quality of life of people, based on the perception of regular users of two urban parks in the city of João Pessoa-PB, northeastern Brazil, the Solon de Lucena Park (PSL) and the ArrudaCâmaraZoobotanical Park (Pzac). For this purpose, the authors developed the Wellbeing Index in Green Areas (Ibeav), a methodology proposed and adapted from the Urban Wellbeing Index (Ibeu) with indicators developed from the following dimensions: mobility and accessibility, urban environmental conditions, urban housing conditions, urban collective services and urban infrastructure. The results obtained for the Ibeav were 0.80155 for the PSL and 0.7716 for the Pzac, indicating good and average quality of life conditions, respectively. Hence, through the methodology applied in the two urban parks, it was possible to identify the dimensions and indicators that contribute to expand and/or reduce the quality-of-life index of the evaluated spaces.

https://doi.org/10.1590/s1678-86212021000300540 636 downloads

Management of acute stroke and urgent neurointerventional procedures during COVID-19 pandemic: recommendations on the Scientific Department on Cerebrovascular Diseases of the Brazilian Academy of Neurology, Brazilian Society of Cerebrovascular Diseases and Brazilian Society of Neuroradiology
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MONT’ALVERNE, Francisco José Arruda

; LIMA, Fabrício Oliveira

; NOGUEIRA, Raul Gomes

; FREITAS, Carlos Clayton Macedo de

; NETO, Octávio Marques Pontes

; SILVA, Gisele Sampaio

; OLIVEIRA, Maura Salaroli de

; FRUDIT, Michel

; CALDAS, Jose Guilherme Mendes Pereira

; ABUD, Daniel Giansante

; CONFORTO, Adriana Bastos

; CARVALHO, Fernanda Martins Maia

; DIAS, Francisco Antunes

; BAZAN, Rodrigo

; AVELAR, Wagner Mauad

; MORO, Carla Heloísa Cabral

; MAGALHÃES, Pedro Silva Correa de

; MIRANDA, Maramelia

; BARBOSA, Leandro de Assis

; FIOROT JUNIOR, José Antonio

; CARDOSO, Fabrício Buchdid

; REBELLO, Leticia Costa

; PARENTE, Bruno de Sousa Mendes

; FARIA, Mário de Barros

; FREITAS, Gabriel Rodriguez de

; ZÉTOLA, Viviane de Hiroki Flumignan

; OLIVEIRA-FILHO, Jamary

; BEZERRA, Daniel da Cruz

; RODRIGUES, Jorge Luis Nobre

; KUSTER, Gustavo

; MARTINS, Sheila

; CARVALHO, João José Freitas de

Arquivos de Neuro-Psiquiatria

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Jul 2020, Volume 78 Nº 7 Páginas 440 - 449

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Introdução: A pandemia causada pelo novo coronavírus da síndrome respiratória aguda grave 2 (SARS-CoV-2, COVID-19) apresenta novos e importantes desafios à gestão de saúde no Brasil. Além da difícil missão de prestar atendimento aos milhares de pacientes infectados pelo COVID-19, os sistemas de saúde têm que manter a assistência às emergências médicas comuns em períodos sem pandemia, tais como o acidente vascular cerebral (AVC), que continuam ocorrendo e requerem tratamento com presteza e eficiência. A alocação de recursos materiais e humanos para o enfrentamento à pandemia não pode comprometer o atendimento ao AVC agudo, uma emergência cujo tratamento é tempo-dependente e se não realizado implica em importante impacto na mortalidade e incapacitação a longo prazo. Objetivo: Este trabalho resume as recomendações do Departamento Científico de Doenças Cerebrovasculares da Academia Brasileira de Neurologia, da Sociedade Brasileira de Doenças Cerebrovasculares e da Sociedade Brasileira de Neurorradiologia para o tratamento do AVC agudo e para a realização de procedimentos de neurointervenção urgentes durante a pandemia de COVID-19, incluindo o uso adequado de ferramentas de triagem e equipamentos de proteção pessoal (para pacientes e profissionais de saúde), além da alocação apropriada de pacientes.

ABSTRACT Introduction: Although the 2019 severe acute respiratory syndrome coronavirus 2 infection (SARS-CoV-2, COVID-19) pandemic poses new challenges to the healthcare system to provide support for thousands of patients, there is special concern about common medical emergencies, such as stroke, that will continue to occur and will require adequate treatment. The allocation of both material and human resources to fight the pandemic cannot overshadow the care for acute stroke, a time-sensitive emergency that with an inefficient treatment will further increase mortality and long-term disability. Objective: This paper summarizes the recommendations from the Scientific Department on Cerebrovascular Diseases of the Brazilian Academy of Neurology, the Brazilian Society of Cerebrovascular Diseases and the Brazilian Society of Neuroradiology for management of acute stroke and urgent neuro-interventional procedures during the COVID-19 pandemic, including proper use of screening tools, personal protective equipment (for patients and health professionals), and patient allocation.

https://doi.org/10.1590/0004-282x20200053 2310 downloads

Validation of white oat yield estimation models using vegetation indices
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Coelho, Anderson Prates

; Faria, Rogério Teixeira de

; Leal, Fábio Tiraboschi

; Barbosa, José de Arruda

; Rosalen, David Luciano

Bragantia

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Jun 2020, Volume 79 Nº 2 Páginas 236 - 241

Resumo: En | Texto: En | PDF: En

ABSTRACT The use of remote sensing in agriculture presents some practical applications in crop production forecast. In this context, studies with remote sensing are scarce for crops such as white oats, which may indicate the capacity of using this technique in the crop. The aim of this study was to evaluate the accuracy in validation of white oat biomass and grain yield estimates by spectral models previously calibrated using two vegetation indices (NDVI and IRVI) at three phenological stages. The mean values of NDVI and IRVI were correlated with the grain and biomass yield of white oats to obtain regression equations. The accuracy was verified by the determination coefficient (R2), root mean square error (RMSE) and mean bias error (MBE). The models were calibrated using data from a field experiment carried out in 2017 and validated with data from the same experiment, but conducted in 2018. The models had good generalization capacity for estimating yield of white oats, especially for biomass yield. Parametrized models in more advanced phenological stages, showed lower error of estimation. Models calibrated with the vegetation index IRVI had lower error of estimation than when calibrated with NDVI.

https://doi.org/10.1590/1678-4499.20190387 652 downloads

Biomass and nitrogen accumulation in white oat (Avena sativa L.) under water deficit
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Coelho, Anderson Prates

; Faria, Rogério Teixeira de

; Leal, Fábio Tiraboschi

; Barbosa, José de Arruda

; Lemos, Leandro Borges

Revista Ceres

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Fev 2020, Volume 67 Nº 1 Páginas 1 - 8

Resumo: En | Texto: En | PDF: En

ABSTRACT Knowledge on nitrogen absorption rate by crops can indicate important managements, especially the definition of rates of this nutrient and the best time for topdressing application. This study aimed to evaluate and compare the accumulation of biomass and nitrogen in white oat cultivated under severe, moderate and no water deficit. Treatments consisted of levels of irrigation, with four repetitions. The treatments under severe water deficit (L1), moderate deficit (L3) and no deficit (L5) received 11%, 60% and 100% of the water volume evapotranspired by the crop (ETc). For each treatment, six plants were collected in each replicate. After collection, plants were separated into leaves, culm and reproductive structures (panicle + grains). Second and third order regressions were tested to model the behavior of biomass and nitrogen accumulation in white oat leaves, culms, reproductive structures and total over time. The maximum total nitrogen accumulation in white oat plants in the treatments L1, L3 and L5 was 50 kg ha-1, 163 kg ha-1 and 246 kg ha-1, respectively. Severe water deficit drastically reduced biomass and nitrogen accumulation in white oat. Severe water deficit causes earlier peak of biomass and nitrogen accumulation, reduces nitrogen accumulation rate and shortens cycle of white oats.

https://doi.org/10.1590/0034-737x202067010001 777 downloads

Nitrogen fertilization management in white oat using spectral indices
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Barbosa, José de Arruda

; Faria, Rogério Teixeira de

; Coelho, Anderson Prates

; Dalri, Alexandre Barcellos

; Palaretti, Luiz Fabiano

Pesquisa Agropecuária Tropical

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2020, Volume 50 elocation e64924

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Técnicas de sensoriamento remoto têm sido consideradas uma nova tecnologia na agricultura mundial para o diagnóstico da demanda nutricional das plantas. A eficiência no manejo de fertilizantes é uma meta a ser alcançada, e ferramentas modernas baseadas em sensoriamento remoto são promissoras para monitorar as necessidades das culturas. Objetivou-se avaliar o desempenho agronômico e o retorno econômico relativo de aveia-branca sob doses de nitrogênio, bem como verificar se o índice de vegetação por diferença normalizada (NDVI) e o índice de clorofila foliar (ICF) podem ser utilizados para o manejo da adubação nitrogenada em cobertura, em aveia-branca. Os tratamentos consistiram de cinco estratégias de manejo de adubação nitrogenada em cobertura: T1 - 160 kg ha-1 (dose referência); T2 - 90 kg ha-1 (dose recomendada); T3 - 60 kg ha-1 (dose econômica); T4 - 30 kg ha-1 (quando NDVI < 90 % de T1); e T5 - 30 kg ha-1 (quando LCI < 90 % de T1). A aveia-branca não respondeu à adubação nitrogenada em cobertura. O seu monitoramento temporal por meio de índices espectrais permitiu dispensar a adubação nitrogenada em cobertura sem reduzir a produtividade de grãos e de biomassa e o teor de nitrogênio foliar, em relação ao manejo recomendado (90 kg ha-1 de N em cobertura), não existindo diferenças entre os índices espectrais avaliados. Assim, os índices espectrais NDVI e LCI são ferramentas promissoras para o manejo da fertilização nitrogenada em cobertura na cultura da aveia-branca.

ABSTRACT Remote sensing techniques have been considered a new technology in worldwide agriculture for diagnosing the plant nutritional demand. Fertilizer management efficiency is a goal to be achieved, and modern tools based on remote sensing are promising for monitoring the crop needs. This study aimed to evaluate the agronomic performance and relative economic return of white oat under nitrogen rates, as well as to verify whether the normalized difference vegetation index (NDVI) and leaf chlorophyll index (LCI) could be used for topdressing nitrogen fertilization management, in white oat. Treatments consisted of five topdressing nitrogen fertilization strategies: T1 - 160 kg ha-1 (reference rate); T2 - 90 kg ha-1 (recommended rate); T3 - 60 kg ha-1 (economic rate); T4 - 30 kg ha-1 (when NDVI < 90 % of T1); and T5 - 30 kg ha-1 (when LCI < 90 % of T1). The white oat did not respond to the topdressing nitrogen fertilization. Its temporal monitoring using spectral indices allowed dispensing the topdressing nitrogen fertilization without reducing the grain and biomass yields and the leaf nitrogen content, when compared to the recommended management (90 kg ha-1 of N as topdressing), with no differences between the evaluated spectral indices. Thus, both the NDVI and LCI spectral indices are promising tools for the topdressing nitrogen fertilization management in the white oat crop.

https://doi.org/10.1590/1983-40632020v5064924 258 downloads

METHIONINE PLUS CYSTINE TO LYSINE RATIO IN DIETS FOR TAMBAQUI JUVENILES
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Souza, Flávio Oliveira

; Bomfim, Marcos Antonio Delmondes

; Ribeiro, Felipe Barbosa

; Lanna, Eduardo Arruda Teixeira

; Sousa, Thalles José Rêgo de

; Costa, Dayana da Conceição da

Revista Caatinga

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Mar 2019, Volume 32 Nº 1 Páginas 243 - 250

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Objetivou-se determinar a relação da metionina mais cistina com a lisina em rações para juvenis de tambaqui (Colossoma macropomum). Utilizou-se 600 juvenis de tambaqui com pesos iniciais de 0,28 ± 0,08 g e 0,94 ± 0,33 g em delineamento em blocos ao acaso, com seis tratamentos, cinco repetições em dois blocos, e vinte peixes por repetição, durante 45 dias. Os tratamentos foram constituídos de seis rações isolisínicas digestíveis (1,45%), isoenergéticas, isofosfóricas e isocálcicas, contendo diferentes relações de metionina mais cistina com a lisina digestível (50%, 55%, 60%, 65%, 70% e 75%). Avaliaram-se variáveis de desempenho e eficiência alimentar, composição corporal (umidade, proteína e gordura), deposições diárias de proteína e gordura corporais e a eficiência de retenção de nitrogênio. A taxa de crescimento específico e a conversão alimentar apresentaram efeitos quadráticos, com efeitos máximos na relação metionina mais cistina:lisina digestível de 64,4% e 64,8%, respectivamente. O aumento no consumo de metionina mais cistina digestível proporcionou redução linear no teor de gordura corporal com a elevação da relação metionina mais cistina:lisina digestível. As demais variáveis não foram influenciadas pelos tratamentos. A relação metionina mais cistina com a lisina digestível recomendada nas rações para juvenis de tambaqui é de 64,8%.

ABSTRACT The objective of this study was to determine the appropriate ratio of methionine plus cystine to lysine in rations for tambaqui (Colossoma macropomum) juveniles, with initial weights of 0.28 ± 0.08 g and 0.94 ± 0.33 g. A randomized block design consisting of six treatments, five replicates in two blocks, and 20 fish per replicate was implemented. Six isolisinic (1.45%), isoenergetic, isophosphoric, and isocalcic diets, containing different ratios of methionine plus cystine to digestible lysine (50%, 55%, 60%, 65%, 70%, and 75%) were used. Performance and feed efficiency variables, including body composition (moisture, protein, and fat), daily protein deposition rate, daily fat deposition rate, and nitrogen retention efficiency, were evaluated. The specific growth rate and feed conversion presented quadratic effects, with maximum effects from the digestible methionine plus cystine to lysine ratio of 64.4% and 64.8%, respectively. The increase in digestible methionine plus cystine intake resulted in a linear reduction in body fat content with the elevation of the digestible methionine plus cystine to lysine ratio. The digestible methionine plus cystine to lysine ratio recommended in rations for tambaqui fingerlings is 64.8%.

https://doi.org/10.1590/1983-21252019v32n124rc 648 downloads

Sugarcane Biopolymer as a Guide Tube in the Regeneration of Peripheral Nerves in Rats
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da-Silva, Ivson Bezerra

; Lós, Deniele Bezerra

; de-Andrade, Rodrigo Fragoso

; Maciel, Carla do Couto Soares

; de-Castro, Célia Maria Machado Barbosa

; Aguiar, José Lamartine de Andrade

; de-Moraes, Silvia Regina Arruda

International Journal of Morphology

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2019, Volume 37 Nº 1 Páginas 289 - 295

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

SUMMARY: Peripheral nerve regeneration is a serious clinical problem. The goal of this work was to evaluate comparatively a biopolymer tube of sugarcane with an expanded polyethylene tube as a tube guide in peripheral nerve regeneration. Fourteen male albino Wistar rats were used, separated into three different groups: control (CG), lesion + polyethylene tube (PG) and lesion + sugarcane biopolymer (SBG). At 60 days old, animals from the PG and SBG underwent surgery for tubulization of the sciatic nerve, and 60 days after the injury they were sacrificed for collection of the nerve. In the analysis of the number of nerve fibers, a smaller number was seen in the PG and SBG groups compared to the CG, no difference was seen between the PG and SBG groups (p<0.05). With regard to the number of blood vessels, the SBG group had a larger number than the CG and PG groups (p<0.05). The SBG also presented increase on axonal diameter and G -ratio compared to PG (p<0.05). Taken together these data revealed that biopolymer tube favors a suitable environment for peripheral nerve regeneration.

RESUMEN: La regeneración nerviosa periférica es un problema clínico grave. El objetivo de este trabajo fue evaluar comparativamente un tubo de biopolímero de caña de azúcar con un tubo de polietileno expandido, como guía de tubo en la regeneración de nervios periféricos. Se utilizaron dieciocho ratas Wistar albinas macho, separadas en tres grupos: control (CG), lesión + tubo de polietileno (PG) y lesión + biopolímero de caña de azúcar (SBG). A los 60 días de edad, los animales del PG y SBG fueron sometidos a una cirugía para la tubulización del nervio ciático, y 60 días después de la lesión fueron sacrificados para la recolección del nervio. En el análisis del número de fibras nerviosas, se observó un número menor en los grupos PG y SBG en comparación con el CG; no se observaron diferencias entre los grupos PG y SBG (p <0,05). Con respecto al número de vasos sanguíneos, el grupo SBG tuvo un número mayor que los grupos CG y PG (p <0,05). El SBG también presentó un aumento en el diámetro axonal y la proporción G en comparación con PG (p <0,05). En conjunto, estos datos revelaron que el tubo de biopolímero favorece un entorno adecuado para la regeneración de nervios periféricos.

480 downloads

Nitrate Reductase Activity and Nitrogen and Biomass Accumulation in Sugarcane under Molybdenum and Nitrogen Fertilization
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Santos, Renato Lemos dos

; Freire, Fernando José

; Oliveira, Emídio Cantídio Almeida de

; Freire, Maria Betânia Galvão dos Santos

; West, Jason Brossard

; Barbosa, José de Arruda

; Moura, Maria José Alves de

; Bezerra, Patrícia da Costa

Revista Brasileira de Ciência do Solo

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2019, Volume 43 elocation e0180171

Resumo: En | Texto: En | PDF: En

ABSTRACT Prior research on sugarcane showed increment of productivity following molybdenum (Mo) fertilization and some indication of the potential role either on nitrate reductase activity (NRA). However, this increment can depend on sugarcane variety and nitrogen (N) fertilization. This study aimed to evaluate the effect of Mo fertilization on Mo uptake, on NRA, nitrate (NO3--N), and ammonium (NH4+-N) contents in leaves and roots of sugarcane, and the accumulation of N and biomass across two sugarcane varieties (RB 867515 and RB 92579). The varieties were subjected to two rates of N fertilization (without N fertilization and 60 kg ha-1 of N) and two rates of Mo fertilization (without Mo fertilization and 200 g ha-1 of Mo). At 70, 100, 130, 200, and 365 days after planting (DAP), the following parameters were determined: Mo, NO3--N and NH4+-N contents, NRA in the leaves and roots, and the accumulation of N, as well as shoot dry matter (SDM). Molybdenum fertilization increased N accumulation in 36 and 44 % in the varieties RB 867515 and RB 92579, respectively. This increase in N accumulation was associated with NRA stimulation of 13 % in the leaves and 42 % in the roots. The maximum NRA occurred around 100 DAP, and its contents in the leaves and roots of the RB 92579 were 0.83 and 0.46 µmol NO2- g-1 h-1 of fresh matter, respectively, and in RB 867515 these values were 0.61 and 0.43 µmol NO2- g-1 h-1 of fresh matter, respectively. The assimilation of NO3--N was increased with Mo application, both with and without N fertilization, suggesting that Mo fertilization is indicated in nutrition management of sugarcane. This study provides insight into how Mo fertilization interacts with N fertilization and sugarcane varieties, altering N accumulation and dry matter production.

https://doi.org/10.1590/18069657rbcs20180171 1999 downloads

Microfacies and diagenetic evolution of the limestones of the upper part of the Crato Formation, Araripe Basin, northeastern Brazil
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Cabral, Flávia Araújo de Arruda

; Silveira, Ana Claúdia da

; Ramos, Germano Mário Silva

; Miranda, Tiago Siqueira de

; Barbosa, José Antonio

; Neumann, Virgínio Henrique de Miranda Lopes

Brazilian Journal of Geology

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2019, Volume 49 Nº 1 elocation e20180097

Resumo: En | Texto: En | PDF: En

Abstract This paper presents the results of a petrographic and diagenetic study of the laminated limestones of the upper part of the Aptian to Albian Crato Formation, northeast of Brazil. The applied techniques were optical microscopy, cathodoluminescence and scanning electron microscopy (SEM) coupled to a wavelength-dispersive spectrometer (WDS). Petrographic analysis has revealed that most of the laminated limestones are calcilutites with a dominance of a micritic matrix, indicating a low-energy depositional environment. Microstructures such as microfaults, microfractures, microslumps, and loop bedding were observed. Based on textural, structural and paleontological features, seven microfacies were recognized: massive limestone, limestone with parallel laminations, limestone with undulated laminations, limestone with slumps, limestone with loop bedding, limestone with ostracods and limestone with peloids. In addition, the processes of cementation, dissolution, replacement, recrystallization and compaction, which are related to different diagenetic stages, were also recognized. The diagenetic constituents found in the sections include calcite, pyrite, silica and sulfates. We can conclude that a large part of the microstructures (microfaults, microfractures, microslumps and loop bedding) can be related to local seismicity, probably due to the reactivation of the Patos Shear Zone. The diagenetic constituents indicate an early to late diagenesis (eogenetic, mesogenetic and telogenetic stage).

https://doi.org/10.1590/2317-4889201920180097 1837 downloads

10.

A lung image reconstruction from computed radiography images as a tool to tuberculosis treatment control
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Oliveira, Marcela de

; Duarte, Sergio Barbosa

; Giacomini, Guilherme

; Pereira, Paulo Câmara Marques

; Souza, Lenice do Rosário de

; Miranda, José Ricardo de Arruda

; Pina, Diana Rodrigues de

Journal of Venomous Animals and Toxins including Tropical Diseases

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2019, Volume 25 elocation e144918

Resumo: En | Texto: En | PDF: En

Abstract Background: Background: Tuberculosis (TB) is an infectious lung disease with high worldwide incidence that severely compromises the quality of life in affected individuals. Clinical tests are currently employed to monitor pulmonary status and treatment progression. The present study aimed to apply a three-dimensional (3D) reconstruction method based on chest radiography to quantify lung-involvement volume of TB acute-phase patients before and after treatment. In addition, these results were compared with indices from conventional clinical exams to show the coincidence level. Methods: A 3D lung reconstruction method using patient chest radiography was applied to quantify lung-involvement volume using retrospective examinations of 50 patients who were diagnosed with pulmonary TB and treated with two different drugs schemes. Twenty-five patients were treated with Scheme I (rifampicin, isoniazid, and pyrazinamide), whereas twenty-five patients were treated with Scheme II (rifampicin, isoniazid, pyrazinamide, and ethambutol). Acute-phase reaction: Serum exams included C-reactive protein levels, erythrocyte sedimentation rate, and albumin levels. Pulmonary function was tested posttreatment. Results: We found strong agreement between lung involvement and serum indices pre- and posttreatment. Comparison of the functional severity degree with lung involvement based on 3D image quantification for both treatment schemes found a high correlation. Conclusions: The present 3D reconstruction method produced a satisfactory agreement with the acute-phase reaction, most notably a higher significance level with the C-reactive protein. We also found a quite reasonable coincidence between the 3D reconstruction method and the degree of functional lung impairment posttreatment. The performance of the quantification method was satisfactory when comparing the two treatment schemes. Thus, the 3D reconstruction quantification method may be useful tools for monitoring TB treatment. The association with serum indices are not only inexpensive and sensitive but also may be incorporated into the assessment of patients during TB treatment.

https://doi.org/10.1590/1678-9199-jvatitd-1449-18 1477 downloads

11.

Productivity and technological quality of sugarcane under fertilization of nitrogen and molybdenum
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Santos, Renato Lemos dos

; Freire, Fernando José

; Oliveira, Emídio Cantídio Almeida de

; Simões Neto, Djalma Euzébio

; Medeiros, Maércio Rodrigo Farias Amaral de

; Bezerra, Patrícia da Costa

; Moura, Maria José Alves de

; Barbosa, José de Arruda

; Lopes, Nayara Rose da Conceição

; Santos, Nayara de Lima

Journal of soil science and plant nutrition

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Dez 2018, Volume 18 Nº 4 Páginas 1002 - 1020

Resumo: En | Texto: En | PDF: En

Abstract: The increase of N fertilization in sugarcane can negatively influence the technological quality of the crop for sugar and alcohol production. The use of Mo in fertilization combined with N can reduce this effect and increase agricultural and sugar yield. The objective of this study was to evaluate the levels of Mo in soil, roots and leaves of sugarcane fertilized with N and Mo, to measure agricultural and sugar productivity and to evaluate quality of the technological attributes for production of sugar and alcohol. Two varieties were cultivated (RB867515 and RB92579) under field conditions, submitted to two doses of N (0 and 60 kg ha-1) and two doses of Mo (0 and 200 g ha-1) both applied to the soil. The source of N used was urea and the source of Mo was sodium molybdate. RB867515 was influenced by Mo and agricultural and sugar productivity increased by 21%. N fertilization did not increase agricultural productivity but reduced the technological quality of sugarcane, and Mo did not change this reduction. It is suggested that N fertilization should be reduced in first crop cycle and Mo fertilization should be stimulated.

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12.

Caracterização Físico-Mecânica da Madeira Jovem de Eucalyptus camaldulensis para Aplicação na Arquitetura Rural
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Torres, Pablo Marcel de Arruda

; Paes, Juarez Benigno

; Nascimento, José Wallace Barbosa do

; Brito, Flávia Maria Silva

Floresta e Ambiente

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Mar 2016, Volume 23 Nº 1 Páginas 109 - 117

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

O objetivo deste trabalho foi analisar a qualidade da madeira de árvores jovem de Eucalyptus camaldulensis plantada em Rio Tinto, Paraíba, para sua utilização na arquitetura rural. Foram realizados ensaios físico-mecânicos, por meio da caracterização simplificada da madeira. Nos ensaios físicos foram obtidos o teor de umidade, massa específica básica e aparente e retratibilidade da madeira, além do coeficiente de anisotropia; e no ensaio mecânico para a tomada da compressão paralela às fibras foram utilizados transdutores de deslocamento linear (LVDTs) acoplados à amostra e ao sistema de aquisição de dados para a determinação dos valores de resistência e rigidez da madeira. Os valores obtidos demonstraram que a madeira jovem de E. camaldulensis se enquadra na classificação de resistência C 20 para madeiras de folhosas, determinada pela Norma Brasileira, não sendo recomendada para fins estruturais, porém pode ser aplicada em elementos secundários de arquitetura rural, como cercas, parques e mobiliário rural.

ABSTRACT This study aimed to analyze the quality of Eucalyptus camaldulensis young wood of planted trees in Rio Tinto, Paraíba, Brazil, for use in rural architecture. Physico-mechanical tests were carried out through simplified characterization. The physical tests obtained were moisture content, basic and apparent specific gravity and shrinkage of the wood, in addition to the anisotropy coefficient. To obtain the compression parallel to fibers results, linear variable differential transformers (LVDTs) bound to the sample and the data acquisition system for the determination of the resistance and stiffness values of wood were used. The values obtained showed that the young wood of E. camaldulensis fits in 20 C strength rating for hardwoods, determined by the Brazilian Standard, still not being recommended for structural purposes, but appropriate to be applied in secondary elements of rural architecture, as fences, playgrounds and for rustic furniture manufacture.

https://doi.org/10.1590/2179-8087.016012 2663 downloads

13.

Antinociceptive activity of Sargassum polyceratium and the isolation of its chemical components
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Santos, Aline Kely Felício de Sousa

; Fonseca, Diogo Vilar da

; Salgado, Paula Regina Rodrigues

; Muniz, Vanessa Morais

; Torres, Paula de Arruda

; Lira, Narlize Silva

; Dias, Celidarque da Silva

; Pordeus, Liana Clébia de Morais

; Barbosa-Filho, José Maria

; Almeida, Reinaldo Nobrega de

Revista Brasileira de Farmacognosia

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Dez 2015, Volume 25 Nº 6 Páginas 683 - 689

Resumo: En | Texto: En | PDF: En

Abstract Marine algae have been the focus of important studies over the past fifty years, with a considerable number of components important to chemists and taxonomists having been isolated and characterized. The scientific data available on Sargassum polyceratium are extremely limited. The objective of the present study was to evaluate the antinociceptive activity of an ethanol extract of S. polyceratium and to isolate its components. Intraperitoneal treatment with ethanol extract of S. polyceratium reduced the number of acetic acid-induced writhes and the amount of time spent in paw-licking in the second phase of the formalin test. Ethanol extract of S. polyceratium also reduced the amount of time spent in paw-licking in the glutamate test; however, there was no difference in the reaction time in the hot plate test at any of the doses tested. The chemical components isolated from ethanol extract of S. polyceratium were identified using one- and two-dimensional spectroscopic methods such as infrared spectroscopy, mass spectrometry and 1H and 13C nuclear magnetic resonance spectroscopy. The analytical results were also compared with data obtained in the literature. The following porphyrin derivatives were isolated from S. polyceratium: 132-hydroxy-(132-R)-pheophytin-a, 132-hydroxy-(132-S)-pheophytin-a, pheophytin-a, and the steroid fucosterol. The present results indicate that the ethanol extract of S. polyceratium has antinociceptive activity. In addition, four new substances were isolated from the species evaluated.

https://doi.org/10.1016/j.bjp.2015.07.017 1164 downloads

14.

Photoelastic Analysis of Two Maxillary Protocols Using Zygomatic Implants
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Moraes, Paulo Hemerson de

; Nóbilo, Mauro de Arruda

; Moraes, Márcio de

; Olate, Sergio

; Albergaria Barbosa, José Ricardo de

International journal of odontostomatology

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Abr 2015, Volume 9 Nº 1 Páginas 107 - 111

Resumo: En Es | Texto: En Es | PDF: En | PDF: Es

The aim of this study was to analyse the in vitro the stress distribution in craniofacial structures around zygomatic implants. Synthetic polyurethane skulls replicas were used as templates for installation of standard and zygomatic implants performing two techniques using rehabilitation with using one zygomatic implant in the right and left side in combination with 2 and 4 standard implants in the anterior maxilla (group 1 and group 2). The skull replicas of photoelastic resin were subjected to photoelastic analysis after linear loading using an Instron 4411 servohydraulic mechanical testing, with a 2 mm displacement. The stress distribution showed the fringes with concentration in the body and the frontal process of zygomatic bone. In the case of model 1, higher concentrations of stress were found around the standard and zygomatic implants and surrounding bone. Under this condition, the rehabilitation with 2 zygomatics implants and 4 standard implants (group 2) provided the most favorable behavior.

El objetivo de este estudio fue analizar el estrés in vitro y la distribución de tensiones en la estructura craneofacial a partir de los implantes cigomaticos. Réplicas de cráneo de poliuretano fueron usados como modelos para la instalación de implantes cigomáticos estándar utilizando dos modelos de distribución de implantes. Estos modelos fueron usados como modelos utilizando 1 implante en cada lado con dos o cuatro implantes convencionales en la región anterior maxilar (grupo 1 y grupo 2); posteriormente, se realizó una carga compresiva unilateral en la máquina Instrom 4411 utilizando 2 mm de desplazamiento máximo. La distribución de estrés se concentró principalmente en la región de cuerpo de hueso cigomático y en la región frontal del proceso cigomático; el modelo 1, con dos implantes convencionales, mostró mayor distribución de estrés en la región cigomática al comparase con el grupo 2; bajo estas condiciones, se concluye que la distribución con cuatro implantes convencionales entrega mejores condiciones de distribución de tensiones.

1508 downloads

15.

Recomendações brasileiras de ventilação mecânica 2013. Parte 2
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Barbas, Carmen Sílvia Valente

; Ísola, Alexandre Marini

; Farias, Augusto Manoel de Carvalho

; Cavalcanti, Alexandre Biasi

; Gama, Ana Maria Casati

; Duarte, Antonio Carlos Magalhães

; Vianna, Arthur

; Serpa Neto, Ary

; Bravim, Bruno de Arruda

; Pinheiro, Bruno do Valle

; Mazza, Bruno Franco

; Carvalho, Carlos Roberto Ribeiro de

; Toufen Júnior, Carlos

; David, Cid Marcos Nascimento

; Taniguchi, Corine

; Mazza, Débora Dutra da Silveira

; Dragosavac, Desanka

; Toledo, Diogo Oliveira

; Costa, Eduardo Leite

; Caser, Eliana Bernadete

; Silva, Eliezer

; Amorim, Fabio Ferreira

; Saddy, Felipe

; Galas, Filomena Regina Barbosa Gomes

; Silva, Gisele Sampaio

; Matos, Gustavo Faissol Janot de

; Emmerich, João Claudio

; Valiatti, Jorge Luis dos Santos

; Teles, José Mario Meira

; Victorino, Josué Almeida

; Ferreira, Juliana Carvalho

; Prodomo, Luciana Passuello do Vale

; Hajjar, Ludhmila Abrahão

; Martins, Luiz Claudio

; Malbouisson, Luis Marcelo Sá

; Vargas, Mara Ambrosina de Oliveira

; Reis, Marco Antonio Soares

; Amato, Marcelo Brito Passos

; Holanda, Marcelo Alcântara

; Park, Marcelo

; Jacomelli, Marcia

; Tavares, Marcos

; Damasceno, Marta Cristina Paulette

; Assunção, Murillo Santucci César

; Damasceno, Moyzes Pinto Coelho Duarte

; Youssef, Nazah Cherif Mohamed

; Teixeira, Paulo José Zimmermann

; Caruso, Pedro

; Duarte, Péricles Almeida Delfino

; Messeder, Octavio

; Eid, Raquel Caserta

; Rodrigues, Ricardo Goulart

; Jesus, Rodrigo Francisco de

; Kairalla, Ronaldo Adib

; Justino, Sandra

; Nemer, Sergio Nogueira

; Romero, Simone Barbosa

; Amado, Verônica Moreira

Revista Brasileira de Terapia Intensiva

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Set 2014, Volume 26 Nº 3 Páginas 215 - 239

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

O suporte ventilatório artificial invasivo e não invasivo ao paciente grave tem evoluído e inúmeras evidências têm surgido, podendo ter impacto na melhora da sobrevida e da qualidade do atendimento oferecido nas unidades de terapia intensiva no Brasil. Isto posto, a Associação de Medicina Intensiva Brasileira (AMIB) e a Sociedade Brasileira de Pneumologia e Tisiologia (SBPT) - representadas por seu Comitê de Ventilação Mecânica e sua Comissão de Terapia Intensiva, respectivamente, decidiram revisar a literatura e preparar recomendações sobre ventilação mecânica, objetivando oferecer aos associados um documento orientador das melhores práticas da ventilação mecânica na beira do leito, com base nas evidências existentes, sobre os 29 subtemas selecionados como mais relevantes no assunto. O projeto envolveu etapas que visaram distribuir os subtemas relevantes ao assunto entre experts indicados por ambas as sociedades, que tivessem publicações recentes no assunto e/ou atividades relevantes em ensino e pesquisa no Brasil, na área de ventilação mecânica. Esses profissionais, divididos por subtemas em duplas, responsabilizaram-se por fazer uma extensa revisão da literatura mundial. Reuniram-se todos no Fórum de Ventilação Mecânica, na sede da AMIB, na cidade de São Paulo (SP), em 3 e 4 de agosto de 2013, para finalização conjunta do texto de cada subtema e apresentação, apreciação, discussão e aprovação em plenária pelos 58 participantes, permitindo a elaboração de um documento final.

https://doi.org/10.5935/0103-507X.20140034 89689 downloads

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