Produção Nacional
Revisado por pares
Patrícia Helena Castro Nunes, Jéssica Pronestino de Lima Moreira, Alessandra de Figueiredo Thompson, Thalita Lyrio da Silveira Machado, José Cerbino-Neto, Fernando A. Bozza,
The consumption of antibiotics is one of the metrics used to evaluate the impact of antimicrobial stewardship programs (ASP). The aim of this study was to determine the prevalence of antibiotic consumption in Brazilian intensive care units (ICUs) and estimate the deviation of the prescribed daily dose (PDD) from the defined daily dose (DDD).
Tópico(s): Urinary Tract Infections Management
2022 - Frontiers Media | Frontiers in Pharmacology
Produção Nacional
Revisado por pares
Raytha de Assis Murillo, Diego Corrêa Alves, Rafaela dos Santos Machado, Márcio José Silveira, Karina Fidanza Rodrigues, Sidinei Magela Thomaz,
We assessed the zonation of two emergent macrophytes, Polygonum ferrugineum and Polygonum acuminatum, and experimentally tested the effects of water level fluctuations and competition on the growth of these two species. We modelled the abundance of both species as a function of depth using a Bayesian approach based on a 16-year dataset from a subtropical floodplain. Then, we designed a factorial experiment in which species were planted in monocultures and mixtures and subjected to three water level ...
Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics
2019 - Elsevier BV | Aquatic Botany
Produção Nacional
Revisado por pares
Eurípedes Malavolta, José Laércio Favarin, Marcelo Malavolta, Cleusa Pereira Cabral, Reges Heinrichs, José Sebastião Machado Silveira,
Estudou-se a repartição de nutrientes nos ramos, folhas e flores na antese da primeira fase reprodutiva do cafeeiro (Coffea arabica L.), cultivares Mundo Novo IAC 388-17 enxertada sobre Apoatã IAC 2258 (4.000 plantas ha-1) e Catuaí Amarelo IAC 62 (5.000 plantas ha-1). No florescimento, coletou-se um ramo plagiotrópico no terço médio de 20 plantas, contando, em média, 37 e 29 ramos floríferos na cultivar Mundo Novo e Catuaí Amarelo, respectivamente, separando-se flores, folhas, e ramo (lenho). As flores ...
Tópico(s): Coffee research and impacts
2002 - Embrapa Informação Tecnológica | Pesquisa Agropecuária Brasileira
Produção Nacional
Revisado por pares
Diego da Silva de Medeiros, Fernando Darío Almeida García, Renato Machado, José Cândido Silveira Santos Filho, Osamu Saotome,
Sea clutter has been a long-standing issue in old and modern radars. Under this context, the K-distribution has emerged as a promising clutter model to accurately mimic sea signal variations in a large variety of radar systems. To guarantee an adequate radar performance in the presence of sea clutter, the family of constant false-alarm rate (CFAR) detectors has been commonly used. In particular, due to its adequate balance between performance and implementation, the cell-averaging CFAR (CA-CFAR) detector ...
Tópico(s): Ocean Waves and Remote Sensing
2023 - Institute of Electrical and Electronics Engineers | IEEE Geoscience and Remote Sensing Letters
Produção Nacional
Revisado por pares
Vanessa da Silveira Ramos, Maria Graças Machado Freire, José Roberto Postali Parra, Maria Lı́gia Rodrigues Macedo,
The Mediterranean flour moth, Anagasta kuehniella, is one of the most important insect pests of grains, reported worldwide, feeding on stored grains and products of rice, rye, corn and wheat. Plants synthesize a variety of molecules, including trypsin inhibitors, to defend themselves against attack by insects. In this study, a trypsin inhibitor (PFTI) was purified from Plathymenia foliolosa (Benth.) seeds and was tested for insect growth regulatory effect. The survival and mass of A. kuehniella larvae ...
Tópico(s): Insect and Pesticide Research
2008 - Elsevier BV | Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology
Produção Nacional
Revisado por pares
Daniela Fávero São Pedro Machado, Rafael Vasconcelos Ribeiro, Joaquim Albenísio Gomes da Silveira, José Rodrigues Magalhães Filho, Eduardo Caruso Machado,
Low temperatures negatively impact the metabolism of orange trees, and the extent of damage can be influenced by the rootstock. We evaluated the effects of low nocturnal temperatures on Valencia orange scions grafted on Rangpur lime or Swingle citrumelo rootstocks. We exposed six-month-old plants to night temperatures of 20ºC and 8ºC under controlled conditions. After decreasing the temperature to 8ºC, there were decreases in leaf CO2 assimilation, stomatal conductance, mesophyll conductance and ...
Tópico(s): Photosynthetic Processes and Mechanisms
2013 - Springer Science+Business Media | Theoretical and Experimental Plant Physiology
Produção Nacional
Revisado por pares
Felipe Ladeira de Oliveira, Luisa Kelmer Côrtes de Barros Silveira, Alice de Miranda Machado, José Augusto da Costa Nery,
Annular elastolytic giant cell granuloma (AEGCG) is a rare granulomatous skin disease of unclear pathogenesis which belongs to the group of disorders in the skin and elastic fibers with similar clinical features of granuloma annulare (GA). This case report is intended to describe a rare hybrid pattern in histopathology demonstrating coexistence of AEGCG and GA. An endocrine disease, such as diabetes mellitus (DM), could contribute to the coexistence of both lesions, and this possibility must be included ...
Tópico(s): Autoimmune and Inflammatory Disorders
2012 - Hindawi Publishing Corporation | Case Reports in Dermatological Medicine
Produção Nacional
Revisado por pares
Silvana Silveira, Patrícia Valério, Almiro José Machado Júnior,
The law of minimum vertical dimension (MVD) states that "when the mandible moves to reach the maximum intercuspal position, this always involves bringing the mandible and maxilla as close together as possible." Therefore, after the first occlusal contact is made, the MIP will be reached through reduction of the vertical dimension. Our objective of this study, through an integrative review of the literature review, was to determine whether ignoring this law is a factor that contributes to malocclusion, ...
Tópico(s): Oropharyngeal Anatomy and Pathologies
2021 - Georg Thieme Verlag | European Journal of Dentistry
Produção Nacional
Revisado por pares
Alberto Cargnelutti Filho, Marcos Toebe, Tatiani Reis da Silveira, Gabriele Casarotto, Fernando Machado Haesbaert, Sidinei José Lopes,
Os objetivos deste trabalho foram determinar o tamanho de amostra para a estimação da média de caracteres morfológicos e produtivos de crambe (Crambe abyssinica Hochst) e avaliar as relações entre esses caracteres. Foi conduzido um experimento a campo em Santa Maria, Estado do Rio Grande do Sul (latitude 29°42'S, longitude 53°49'W e 95m de altitude), no ano de 2008. Na colheita, foram selecionadas, aleatoriamente, 75 plantas e foram mensurados os caracteres morfológicos (altura de planta, número de ...
Tópico(s): Agricultural Practices and Plant Genetics
2010 - UNIVERSIDADE FEDERAL DE SANTA MARIA | Ciência Rural
Produção Nacional
Revisado por pares
Mirian Farinon, Vanessa Schuck Clarimundo, Graziele P.R. Pedrazza, Pércío S. Gulko, José Ângelo Silveira Zuanazzi, Ricardo Machado Xavier, P. G. Oliveira,
Montanine is an alkaloid isolated from Rhodophiala bifida bulb with potential anti-arthritic activity. In this context, we evaluated whether montanine has a disease modifying anti-rheumatic activity in two arthritis models and its effect in vitro on lymphocyte proliferation and on invasiveness of fibroblast-like synoviocytes (FLS). Antigen-induced arthritis (AIA) was performed in Balb/C mice with methylated bovine serum albumin, and nociception and leukocytes migration into the knee joint were evaluated. ...
Tópico(s): Toxin Mechanisms and Immunotoxins
2017 - Elsevier BV | European Journal of Pharmacology
Produção Nacional
Revisado por pares
José Eduardo Silveira Machado Júnior, Frederico Chaves Seger, Clarissa Stefani Teixeira, Érico Felden Pereira, Eugênio Andrés Díaz Merino,
Este estudo identificou as queixas musculoesqueléticas de 16 trabalhadores de uma instituição financeira, praticantes e não praticantes de ginástica laboral, por meio do questionário do mapa corporal. Para a análise dos dados foi utilizado o teste qui-quadrado com nível de significância de 5%. O grupo da ginástica laboral mostrou resultados positivos apenas para a análise da regão cervical (p = 0,049), sendo as queixas nesta regão mais leves (44,44%; n = 4) quando comparadas às apresentadas pelos indivíduos ...
Tópico(s): Occupational Health and Burnout
2012 - Associação Brasileira de Engenharia de Produção | Production
Produção Nacional
Revisado por pares
Flávia de Lima Osório, Antônio Waldo Zuardi, Isabella Lara Machado Silveira, José Alexandre S. Crippa, Jaime E. C. Hallak, Karina Pereira‐Lima, Sônia Regina Loureiro,
Few longitudinal studies assessed the less immediate consequences of the COVID-19 pandemic on health workers' mental health, especially in less developed countries. The objective was to assess the evolution of mental health indicators of Brazilian health workers providing care to COVID-19 patients, considering the beginning and first wave of the pandemic, identifying risk and protective factors. A non-probabilistic sample of health professionals was assessed for 6 months at seven different points ...
Tópico(s): Occupational Health and Burnout
2022 - Frontiers Media | Frontiers in Psychiatry
Produção Nacional
Revisado por pares
Eva Lúcia Cardoso Silveira, Ronaldo Cunha Coelho, José Machado Moita Neto, Carla Verônica Rodarte de Moura, Edmílson Miranda de Moura,
USING THE FAAS.This work proposed a procedure to examine ashes produced in burning lubricating oils used in public transportation, in Teresina PI.Sulphanilic acid was added to the oil samples, which were burned at 550 °C for three hours and 650 °C for two hours.The ash solutions were analyzed by FAAS and there were significant differences in the metal contents of the waste oil produced from normal car service.The quantification limits in µg g -1 were 5.9 (Fe), 4.4 (Pb), 1.7 (Ni), 2.1 (Cu), and 1.2 (Zn). ...
Tópico(s): Lubricants and Their Additives
2010 - Brazilian Chemical Society | Química Nova
Produção Nacional
Revisado por pares
Flávia de Lima Osório, Antônio Waldo Zuardi, Isabella Lara Machado Silveira, José Alexandre S. Crippa, Jaime E. C. Hallak, Karina Pereira‐Lima, Sônia Regina Loureiro,
This study aimed to: (a) monitor the progression of symptoms of mental health burden among frontline workers caring for COVID-19 patients in Brazil during the two waves of the pandemic, considering the number of new cases and deaths, and; (b) to verify the different mental health outcomes and potential associations with current burnout symptoms. A non-probabilistic sample of health professionals was assessed as the pandemic progressed in Brazil (May/2020 August/2021). Standardized instruments focusing ...
Tópico(s): Occupational Health and Burnout
2023 - Frontiers Media | Frontiers in Psychiatry
Produção Nacional
Revisado por pares
Luciana Girotto Gentil, Esteban Cordero, Mirian Silva do Carmo, Márcia Regina Machado dos Santos, José Franco da Silveira,
Trypanosoma cruzi metacyclic trypomastigotes express the developmentally regulated GP82 glycoprotein, which is implicated in host cell invasion. Although GP82 mRNA and protein are not present and the mRNAs barely detectable in epimastigotes, nuclear run-on analysis showed that it is transcribed in both stages. This result indicates that accumulation of transcripts in metacyclic forms is not due to increased transcription of the GP82 gene. To investigate whether mRNA stability may be responsible ...
Tópico(s): Signaling Pathways in Disease
2008 - Elsevier BV | Acta Tropica
Produção Nacional
Revisado por pares
Flávia de Lima Osório, Isabella Lara Machado Silveira, Karina Pereira‐Lima, José Alexandre S. Crippa, Jaime E. C. Hallak, Antônio Waldo Zuardi, Sônia Regina Loureiro,
The objective was to compare the mental health indicators of health workers providing care to individuals with COVID-19 in Brazil, considering sociodemographic and occupational variables and the risk perception of contamination by the Sars-CoV-2 of workers from different professions, identifying risk and protective factors. A sample of 916 health workers was assessed: physicians, nursing workers, and workers from other professions (psychologists, physical therapists, nutritionists, speech therapists, ...
Tópico(s): Occupational Health and Burnout
2021 - Frontiers Media | Frontiers in Psychiatry
Produção Nacional
Revisado por pares
Helen Andrade Arcuri, Geraldo Francisco Donegá Zafalon, Evandro A. Marucci, Carlos Eduardo Bonalumi, Nelson José Freitas da Silveira, J.M. Machado, Walter Filgueira de Azevedo, Mário Sérgio Palma,
Abstract Background The functional and s tructural characterisation of enzymes that belong to microbial metabolic pathways is very important for structure-based drug design. The main interest in studying shikimate pathway enzymes involves the fact that they are essential for bacteria but do not occur in humans, making them selective targets for design of drugs that do not directly impact humans. Description The ShiKimate Pathway DataBase (SKPDB) is a relational database applied to the study of shikimate ...
Tópico(s): Genomics and Phylogenetic Studies
2010 - BioMed Central | BMC Bioinformatics
Produção Nacional
Revisado por pares
Fernanda Lasakosvitsch, Luciana Girotto Gentil, Márcia Regina Machado dos Santos, José Franco da Silveira, C. Barbieri,
Tópico(s): Blood Coagulation and Thrombosis Mechanisms
2003 - Elsevier BV | International Journal for Parasitology
Produção Nacional
Revisado por pares
M. T. de M. Carvalho, B. E. Madari, Wesley Gabriel de Oliveira Leal, Adriana Rodolfo da Costa, P. L. O. A. Machado, Pedro Marques da Silveira, José Aloísio Alves Moreira, Alexandre Bryan Heinemann,
The objective of this work was to measure the fluxes of N2O‑N and NH3‑N throughout the growing season of irrigated common‑bean (Phaseolus vulgaris), as affected by mulching and mineral fertilization. Fluxes of N2O‑N and NH3‑N were evaluated in areas with or without Congo signal grass mulching (Urochloa ruziziensis) or mineral fertilization. Fluxes of N were also measured in a native Cerrado area, which served as reference. Total N2O‑N and NH3‑N emissions were positively related to the increasing concentrations ...
Tópico(s): Growth and nutrition in plants
2013 - Embrapa Informação Tecnológica | Pesquisa Agropecuária Brasileira
Produção Nacional
Revisado por pares
Flávio R. C. Sousa, Leonardo O. Moreira, José Silveira Filho, Javam C. Machado,
Summary Cloud computing is a trend of technology aimed at providing on‐demand services with payment based on usage. In order to improve the use of resources, cloud providers adopt multi‐tenant approaches, reducing the operation cost of services. Moreover, tenants have irregular workload patterns, which impacts in guarantees of quality of service, mainly due to interference among tenants. This paper proposes PredRep, a predictive approach to characterize the cloud database system workload and automatically ...
Tópico(s): IoT and Edge/Fog Computing
2018 - Wiley | Concurrency and Computation Practice and Experience
Produção Nacional
Revisado por pares
Estela M. L. Aquino, Ismael Henrique Silveira, Júlia Moreira Pescarini, Rosana Aquino, Jaime Almeida de Souza-Filho, Aline dos Santos Rocha, Andrêa Jacqueline Fortes Ferreira, Audêncio Victor, Camila Silveira Silva Teixeira, Daiane Borges Machado, Enny S. Paixão, Flávia Jôse Oliveira Alves, Flávia Bulegon Pilecco, Greice Maria de Souza Menezes, Lígia Gabrielli, Luciana Leite, Maria da Conceição Chagas de Almeida, Naiá Ortelan, Qeren Hapuk R. Ferreira Fernandes, Renzo Flores-Ortiz, Raquel Nunes Palmeira, Elzo Pereira Pinto, Érika Aragão, Luís Eugênio Portela Fernandes de Souza, Manoel Barral‐Netto, Maria Glória Teixeira, Maurício L. Barreto, Maria Yury Ichihara, Raiza Tourinho Lima,
Resumo A pandemia de COVID-19 tem desafiado pesquisadores e gestores a encontrar medidas de saúde pública que evitem o colapso dos sistemas de saúde e reduzam os óbitos. Esta revisão narrativa buscou sistematizar as evidências sobre o impacto das medidas de distanciamento social na epidemia de COVID-19 e discutir sua implementação no Brasil. Foram triados artigos sobre o efeito do distanciamento social na COVID-19 no PubMed, medRXiv e bioRvix, e analisados atos do poder público nos níveis federal ...
Tópico(s): COVID-19 and Mental Health
2020 - ASSOCIAÇÃO BRASILEIRA DE SAÚDE COLETIVA | Ciência & Saúde Coletiva
Produção Nacional
Revisado por pares
Miguel Ángel Chiurillo, Márcia Regina Machado dos Santos, José Franco da Silveira, José Luis Ramı́rez,
We here describe a general strategy for cloning and characterizing telomeric and sub-telomeric regions of the human protozoan parasite Trypanosoma cruzi. The use of a bacterial artificial chromosome vector and a telomeric adaptor produced stable telomeric recombinant clones with inserts ranging from 5 to 25 kb. Analysis of these recombinants provided unique landmarks for chromosomal mapping and sequencing and enabled us to derive a more accurate picture of T. cruzi telomeric organization.
Tópico(s): Trypanosoma species research and implications
2002 - Elsevier BV | Gene
Produção Nacional
Revisado por pares
Karina Pereira‐Lima, Sônia Regina Loureiro, Isabella Lara Machado Silveira, José Alexandre S. Crippa, Jaime E. C. Hallak, Antônio Waldo Zuardi, Flávia de Lima Osório,
Health care workers from low- and middle-income countries have been playing a critical role in overcoming the challenges related to the COVID-19 pandemic; yet little is known about the relationship between workplace protections and wellbeing of Brazilian health care workers during the pandemic. This study aimed to evaluate whether Brazilian health care workers were satisfied with their workplace measures to protect their physical and mental health during the pandemic, and to assess the associations ...
Tópico(s): COVID-19 and Mental Health
2022 - Frontiers Media | Frontiers in Psychology
Produção Nacional
Revisado por pares
Nelson José Freitas da Silveira, Leonardo Varuzza, Ariane Machado‐Lima, Marcelo de Souza Lauretto, Daniel Guariz Pinheiro, Rodrigo V. Rodrigues, Patrícia Severino, Francisco G. Nóbrega, Wilson A. Silva, Carlos A. de B. Pereira, Eloíza H. Tajara,
Abstract Background Head and neck squamous cell carcinoma (HNSCC) is one of the most common malignancies in humans. The average 5-year survival rate is one of the lowest among aggressive cancers, showing no significant improvement in recent years. When detected early, HNSCC has a good prognosis, but most patients present metastatic disease at the time of diagnosis, which significantly reduces survival rate. Despite extensive research, no molecular markers are currently available for diagnostic or ...
Tópico(s): Molecular Biology Techniques and Applications
2008 - BioMed Central | BMC Medical Genomics
Produção Nacional
Revisado por pares
Luciana Aparecida Honorato, Luiz Carlos Pinheiro Machado Filho, Isabella Dias Barbosa Silveira, María José Hötzel,
The aims of this study were to investigate the environmental, feeding, and health management of organic (ORG) family dairy farms in the south of Brazil in comparison with conventional (CONV) farms, and to assess their degree of compliance with Brazilian organic legislation and the strategies they adopt to accomplish this (n = 17 per group). During 2 visits to each farm in March and September, 2010, observations were made on the environment, feed, and health management, followed by bulk milk testing, ...
Tópico(s): Animal Disease Management and Epidemiology
2014 - Elsevier BV | Journal of Dairy Science
Produção Nacional
Revisado por pares
Luciano Lima Correia, Hermano Alexandre Lima Rocha, Jocileide Sales Campos, Anamaria Cavalcante e Silva, Dirlene Mafalda Ildefonso da Silveira, Márcia Maria Tavares Machado, Álvaro Jorge Madeiro Leite, Antônio José Lêdo Alves da Cunha,
200 million pre-school age children are not developing properly. Delays in child development are associated with multiple factors. This study aims to analyze if vitamin A supplementation is associated with improved development and how this effect could be mediated by nutritional status. Population-based study surveyed a representative sample of 8000 households, 1232 children 0-35 months, in the state of Ceará, Brazil. The variables analysed included child developmental status, nutritional determinants ...
Tópico(s): Infant Development and Preterm Care
2019 - ASSOCIAÇÃO BRASILEIRA DE SAÚDE COLETIVA | Ciência & Saúde Coletiva
Produção Nacional
Revisado por pares
Camila Rosat Consiglio, Schauren Juliana da Silveira, Odirlei André Monticielo, Ricardo Machado Xavier, João Carlos Tavares Brenol, José Artur Bogo Chies,
Tópico(s): RNA regulation and disease
2014 - Springer Nature | Molecular Biology Reports
Produção Nacional
Revisado por pares
Danilo Cortozi Berton, Leonardo Evangelista da Silveira, Cássia Cinara da Costa, Rafael Machado de Souza, Claudia Winter, Paulo José Zimermann Teixeira,
To investigate the effectiveness of pulmonary rehabilitation (PR) in exercise capacity and quality of life in patients with chronic obstructive pulmonary disease (COPD) with and without global fat-free mass (FFM) depletion.Retrospective case-control.Outpatient clinic, university center.COPD patients (N=102) that completed PR were initially evaluated.PR including whole-body and weight training for 12 weeks, 3 times per week.St. George Respiratory Questionnaire (SGRQ), 6-minute walk distance (6MWD), and ...
Tópico(s): Cardiovascular and exercise physiology
2013 - Elsevier BV | Archives of Physical Medicine and Rehabilitation
Produção Nacional
Revisado por pares
Mariana R. Dominguez, Eduardo L. V. Silveira, José Ronnie Vasconcelos, Bruna Cunha de Alencar, Alexandre V. Machado, Oscar Bruña‐Romero, Ricardo T. Gazzinelli, Maurício M. Rodrigues,
During adaptive immune response, pathogen-specific CD8+ T cells recognize preferentially a small number of epitopes, a phenomenon known as immunodominance. Its biological implications during natural or vaccine-induced immune responses are still unclear. Earlier, we have shown that during experimental infection, the human intracellular pathogen Trypanosoma cruzi restricts the repertoire of CD8+ T cells generating strong immunodominance. We hypothesized that this phenomenon could be a mechanism used ...
Tópico(s): Immune Cell Function and Interaction
2011 - Public Library of Science | PLoS ONE
Produção Nacional
Gabriela Carvalho Fernandes, Rodrigo Augusto Depieri Michelli, Henrique C.R. Galvão, André Escremim de Paula, Rui Pereira, Carlos Eduardo Mattos Cunha Andrade, Paula Silva Felicio, Cristiano de Pádua Souza, Deise R.P. Mendes, Sáhlua Miguel Volc, Gustavo Nóriz Berardinelli, Rebeca Silveira Grasel, Cristina S. Sabato, Danilo Vilela Viana, José Carlos Machado, José Luís Costa, Edmundo Carvalho Mauad, Cristovam Scapulatempo‐Neto, Banu K. Arun, Rui Manuel Reis, Edenir Inêz Palmero,
There are very few data about the mutational profile of families at-risk for hereditary breast and ovarian cancer (HBOC) from Latin America (LA) and especially from Brazil, the largest and most populated country in LA.Of the 349 probands analyzed, 21.5% were BRCA1/BRCA2 mutated, 65.3% at BRCA1 and 34.7% at BRCA2 gene. The mutation c.5266dupC (former 5382insC) was the most frequent alteration, representing 36.7% of the BRCA1 mutations and 24.0% of all mutations identified. Together with the BRCA1 c. ...
Tópico(s): Genomic variations and chromosomal abnormalities
2016 - Impact Journals LLC | Oncotarget