bluuebunny/crossref_metadata_2025 huggingface dataset:
MONITORING OF TRANSPORTATION NETWORK OF CARBONIZATION GASES IN COGENERATION PROJECTS
Authors: Carneiro Angélica de Cássia Oliveira , Donato Danilo Barros , Valência Augusto Rodrigues , Barcellos Daniel Camara , Silva Claudio Homero Ferreira , Cunha Wanderley Luiz Paranaiba
Published: February 2019

ABSTRACT The goal of this study was to evaluate the performance and efficiency of a transmission system of carbonization gas to the combustion chamber of a burner. The gas transportation network (GTN) consists of removing the gases from the chimney of the furnaces, which pass through pipes until they reach the burner. A heating system was built surrounding the pipe that leads the carbonization gases to avoid the condensation of gases and the generation of wastewater in the pipes. These gases were named trace gases and guided in the opposite direction to the carbonization gases. This study monitored of the temperature of the GTN by analyzing different points of the process with thermocouples attached on the pipes. The correlation between the various temperatures in the sampling points determined the Pearson’s correlation coefficient to 95% of probability and a regression between the variables that had a significant association. The average temperature of carbonization gases in the chimney outlet was 116ºC, and it entered the burner with an average temperature of 166.7ºC, providing an increase of 50.7ºC on the temperature. The average temperature in the burner chimney outlet for trace gas was 218.35ºC, and it was released to the atmosphere with a temperature of 125.2ºC. The thermal loss was 93.15ºC. The GTN that uses trace gas is presented as an alternative to the flow of gas carbonization. This system is effective regarding non-condensing gases through the pipes, allowing a better use of energy and avoiding the generation of undesirable effluents.
FINANCIAL ANALYSIS OF ENRICHMENT MODEL USING TIMBER AND NON-TIMBER PRODUCTS OF SECONDARY REMNANTS IN THE ATLANTIC FOREST
Authors: Maier Thais Ferreira , Benini Rubens de Miranda , Fachini Cristina , Santana Paulo José Alves de
Published: February 2019

ABSTRACT Socio-economic aspects can limit the expansion of ecological restoration. One alternative to address this question is the development of restoration models that generate income to farmers in addition to the benefits from conservation itself. We designed and implemented the initiative "Sustenta A Mata," a project developed by The Nature Conservancy and supported by the Brazilian Development Bank (BNDES), to generate economic and social benefits for the communities involved. This study aims to analyze the financial viability of the enrichment restoration initiative in forest remnants based on a 30 year projection. The project was implemented on 17 hectares of land that included timber and non-timber species with a focus on the Juçara Palm (Euterpe edulis Mart.) for the production of fruit. Estimated earnings come from both the production of timber and juçara fruits. We considered input, equipment and labor costs for implementation, maintenance, and harvesting. For the economic analysis we used the following criteria: Net Present Value (NPV); Return on Investment (ROI); Benefit/Cost Ratio (B/C), and Payback. From these indicators the following values were obtained as results: US$4,040.80 of NPV, 13 percent of ROI, 1.59 of B/C and a 13-year Payback. These positive results for the aforementioned indicators reveal that the use of the enrichment restoration initiatives utilized in this project may contribute to the economic viability of the endeavor, contributing to a greater sustainability in rural areas.
FOREST DYNAMICS OF A SUB-XEROPHILOUS VEGETATION FORMATION IN CENTRAL PERU - CHANCHAMAYO VALLEY, PERU
Authors: Palacios-Ramos Sonia , Montenegro Rolando , Linares-Palomino Reynaldo , Reynel Carlos
Published: February 2019

ABSTRACT Studies about the complex processes of forest dynamics in pre-montane and montane forests (between 600 - 3000 m altitude) are rare. This study contributes to our knowledge on changes in the floristic composition and population dynamics of woody species in a sub-xerophilous formation immersed in the humid pre-montane and montane forests of Peru. In 2015 we re-measured trees with diameter at breast height equal or greater than10cm in a permanent plot established in 2009. We recorded 31 species of 25 families, with a Fisher's Alpha diversity index of 7.5. The most abundant and dominant species (including Heteropterys intermedia, Physocalymma scaberrimum, Sapium glandulosum, Tachigali peruviana and Machaerium hirtum) represented 66.25% of all species in 2009 and 66.36% in 2015. The prevalence of these species and others ensures the maintenance of a characteristic seasonally dry forest formation within the census period (6.25 years). The dynamics of this forest, with a high rate of recruitment (3.82%) and a low rate of mortality (0.72%), show favorable conditions for the maintenance of this forest fragment.
EFFECT OF FIRE ON FLOWERING AND FRUITING OF ANACARDIUM HUMILE (ANACARDIACEAE) IN CERRADO STRICTO SENSU
Authors: Sousa Diego Guimarães de , Cunha Hélida Ferreira da
Published: February 2019

ABSTRACT Knowledge about the effects of fire on sexual reproduction of Cerrado woody species is fundamental for elaborating public policies and management plans for its conservation. The present study evaluated the effect of a controlled burning on flowering and fruiting of Anacardium humile in an Cerrado stricto sensu environment, in Cavalcante, GO. An area with no fire records for five years was submitted to controlled burning in May 2016, used as the experimental area and its adjacent areas protected from fire as control area. In each area, 16 reproductive individuals were selected and their production of floral buds, flowers and fruits, followed up for 17 months. In 2016 the production of reproductive structures was higher in the control area, since the majority of individuals of the burned area invested in the recovery of vegetative structures (branches) damaged by fire. Only three individuals flowered in the burned area in 2016 and presented greater effort in the production of buds and flowers per panicle than the individuals in the control area, however, the fruit set was equal between the areas. One year after fire, the production of reproductive structures became equal between areas. The control area presented higher fruit production in 2017 in comparison to 2016, indicating a variable pattern in annual fruit production. The impact of fire on the reproductive structures of A. humile is greater in the same year of fire and its reproductive potential can be normalized in the subsequent year.
FEASIBILITY ANALYSIS OF THE USE OF LIGHT AND MEDIUM TRUCKS IN TIMBER TRANSPORT IN RURAL PROPERTIES
Authors: Schettino Stanley , Minette Luciano José , Schettino Carolina Freitas , Reboleto Isabela Dias
Published: February 2019

ABSTRACT Aiming to analyze the economic-financial feasibility of the use of light and medium trucks in the transport of the timber produced by small farmers within the process of forest production, two types of light trucks and two of medium trucks were evaluated in 14 rural properties in the State of Espírito Santo. Considering the transport cycles, distances, productivity of the forests, acquisition values, load capacity and fuel consumption of each truck, in addition to the cost of opening roads, nonlinear regression equations were adjusted to estimate the timber transport cost in the different scenarios evaluated. Transport costs were included in the cash flow of the forest production process, and the internal rate of return and net present value for all combinations were evaluated. The results configured the light truck in the 6x2 version as the most economically viable alternative for timber transport, with 125 km being the maximum feasible distance in forests with productivity up to 250 m3/ha. In forests with productivity above 300 m3/ha, the medium truck in the 6x2 version proved to be the most viable economic alternative in distances over 150 km. The light and medium trucks in the 4x2 version did not prove to be the best economic alternative in any of the evaluated situations. It is concluded that light trucks are an economically viable alternative for timber transport, in order to ensure the profitability and sustainability of the forestry business in small rural properties.
Sobre a ação de Euler-Heisenberg e o espalhamento da luz pela luz
Authors: Furtado J.
Published: February 2019

Resumo Este trabalho tem como objetivo apresentar uma revisão, com fins didáticos e de divulgação científica, acerca dos desenvolvimentos que envolvem o espalhamento da luz pela luz e sua relação com a ação de Euler-Heisenberg. Apresentamos inicialmente uma sucinta introdução histórica seguida por discussões sobre a ação de Euler-Heisenberg em vários contextos, mas em especial dois, o método do tempo-próprio de Fock-Schwinger e a violação de simetria de Lorentz. Por fim, discutimos os resultados recentes obtidos pela colaboração ATLAS do LHC que apontam uma evidência para o espalhamento da luz pela luz.
Reflexiones didácticas sobre algunos razonamientos lógicos con la primera ley de Newton y su relación con las ideas previas de los alumnos
Authors: Carcavilla Arturo , Puey María Lucía
Published: February 2019

Resumo Las ideas previas de los alumnos que consideran la fuerza como causante de la velocidad de los cuerpos están muy extendidas y son muy resistentes al cambio. Reflexionamos sobre algunos aspectos de los contenidos correspondientes a la primera ley de Newton, que aparece en libros de texto de enseñanza secundaria, ya que pueden resultar equívocos, si el profesor no tiene en cuenta algunas cuestiones lógicas, que, por otra parte redundarían en una mejor formación en pautas de pensamiento, concepciones epistemológicas y conocimiento del método científico de los alumnos. Analizamos algunos libros de texto de enseñanza secundaria, en estos aspectos lógicos en los que el profesor debe de estar atento. Mostramos la conveniencia de introducir pronto una definición de la fuerza newtoniana y comprobar su utilidad en el desarrollo del tema.
O Princípio de Equivalência
Authors: Acevedo O.A. , Morais E.M. de , Pimentel B.M.
Published: February 2019

Resumo Revisamos a base conceitual sobre o Princípio de Equivalência, elucidando seu papel crucial na formulação das teorias gravitacionais. Analisamos as consequências diretas do princípio, reinterpretando de modo relativisticamente coerente a forma como deve ser considerado na dedução do redshift gravitacional via utilização do efeito Doppler relativístico, ponto que foi negligenciado por Einstein. Os experimentos mais importantes já realizados a procura por violações da equivalência entre massa gravitacional e massa inercial são comentados, analisando seus princípios de funcionamento e os resultados obtidos.
Clinical registry of cardiovascular surgeries in a university hospital
Authors: Senger Roberta , Santarem Michelle Dornelles , Goldmeier Sílvia
Published: February 2019

SUMMARY OBJECTIVES To create and implement a computerized clinical registry to verify in the short-, medium- and long-term the mortality and the incidence of significant surgical outcomes in adult patients submitted to cardiovascular surgeries. METHODS This is a prospective, observational registry-based study aimed at documenting the characteristics of patients undergoing cardiovascular surgery. RESULTS Variables were standardized according to international references from the Society of Thoracic Surgeons (STS), American College of Cardiology (ACC), Michigan Society of Thoracic and Cardiovascular Surgeons (MSTCVS) and the Department of Informatics of SUS (DATASUS). The standardization was performed in English with an interface in Portuguese to make the data collection easier in the institution. Quality of care indicators, surgical procedure characteristics, in addition to significant cardiovascular outcomes will be measured. Data were collected during the hospitalization until hospital discharge or at the seventh day, in thirty days, six months, twelve months and annually until completing five years. CONCLUSION The importance of a database maintenance with international standards that can be reproducible was evidenced, allowing the evaluation of techniques and assistance and the integration of data among health institutions.
Intensive treatment of hyperglycemia in the acute phase of myocardial infarction: the tenuous balance between effectiveness and safety – a systematic review and meta-analysis of randomized clinical trials
Authors: Negreiros Paulo H. , Bau Adriana , Nadruz Wilson , Coelho Filho Otavio R. , Matos-Souza José Roberto , Coelho Otavio R. , Sposito Andrei C. , Carvalho Luiz Sergio F.
Published: February 2019

SUMMARY INTRODUCTION In acute myocardial infarction (AMI), each 18 mg/dl (1 mmol/L) increment is associated with a 3% increase in mortality rates. All strategies applied for reducing blood glucose to this date, however, have not presented encouraging results. METHODOLOGY We searched the Medline (PubMed) and Cochrane Library databases for randomized clinical trials (RCTs) from 1995 to 2017 that used the intensive strategy or GIK therapy for blood glucose control during the acute stage of the AMI. We included eight studies. In order to identify the effects of GIK or insulin therapy, we calculated a overall risk ratio (RR) with meta-analysis of fixed and random effects models. A two-tail p-value of < 0.05 was considered statistically significant. RESULTS A total of 28,151 patients were included: 1,379 intensively treated with insulin, 13,031 in GIK group, and 13,741 in the control group. The total mortality was 10.5% (n=2,961) and the RR of 1.03 [95%CI 0.96–1.10]; I2 = 31%; p = 0.41 for the combined intensive insulin plus GIK groups in comparison with the control group. In meta-regression analyses, intense reductions in blood glucose (> 36 mg/dL) in relation to the estimated average blood glucose (estimated by HbA1c) were associated with higher mortality, whereas lower reductions in blood glucose (< 36 mg/dL) were not associated with mortality. The lowering of blood glucose in the acute phase of MI compared with the average blood glucose was more effective around 18 mg/dL. CONCLUSION This meta-analysis suggests that there may be a tenuous line between the effectiveness and safety of reducing blood glucose in the acute phase of MI. The targets must not exceed a reduction greater than 36 mg/dL in relation to estimated average blood glucose.
The efficacy of saxagliptin in T2DM patients with non-alcoholic fatty liver disease: preliminary data
Authors: Li Juan-Juan , Zhang Ping , Fan Bing , Guo Xiu-Li , Zheng Zhe-Shu
Published: February 2019

SUMMARY OBJECTIVE To investigate the clinical efficacy and the possible mechanisms of saxagliptin in the treatment of type 2 diabetes mellitus (T2DM) combined with non-alcoholic fatty liver disease (NAFLD). METHODS A total of 95 T2DM and NAFLD patients were randomly divided into group A (saxagliptin group), group B (glimepiride group), and group C (glimepiride combined with polyene phosphatidylcholine group). RESULTS After intervention treatment for 24 w, body mass index (BMI), waist-to-hip ratio (WHR), glycated haemoglobin (HbA1c), fasting plasma glucose (FPG), fasting insulin (FINS), homeostatic model assessment of insulin resistance (HOMA-IR), interleukin-6 (IL-6), triglyceride (TG), total cholesterol (TC), alanine aminotransferase (ALT), aspartate aminotransferase (AST), γ-glutamyltransferase (γ-GT), and quantitative detection of liver steatosis of study subjects were observed, the action of liver steatosis in subjects of groups A and C were significantly different from those of group B; however, there were no differences between groups A and C. The FINS, HOMA-IR, and IL-6 of subjects in group A was lower than those in groups B and C; however, there were no significant differences between the latter two groups. CONCLUSION For T2DM combined with NAFLD patients, the saxagliptin treatment could not only effectively control blood glucose but also attenuate insulin resistance and inflammatory injury of the liver to improve fatty liver further.
Inhibition of the sodium-glucose co-transporter 2 in the elderly: clinical and mechanistic insights into safety and efficacy
Authors: Cintra Riobaldo , Moura Filipe A , Carvalho Luis Sergio F de , Barreto Joaquim , Tambascia Marcos , Pecoits-Filho Roberto , Sposito Andrei C.
Published: February 2019

SUMMARY The prevalence of type 2 diabetes mellitus (T2DM) in the elderly grew sharply over the last decade. Reduced insulin sensitivity and secretory capacity, weight gain, sarcopenia, and elevated adiposity are all common metabolic and body changes in the aging population that favor an increased risk of hypoglycemia, frailty syndrome, falls, and cognitive dysfunction. First line antidiabetic therapy is frequently not safe in older individuals because of its high risk of hypoglycemia and prevalent co-morbid diseases, such as chronic kidney disease, osteoporosis, cardiovascular disease, and obesity. Sodium-glucose cotransporter 2 inhibitor (SGLT2i) is a new class of antidiabetic therapy that inhibits glucose and sodium reabsorption on renal proximal convoluted tubule. Its effect is well demonstrated in various clinical scenarios in the younger population. This review and metanalysis describe particularities of the SGLT2i on the elderly, with mechanistic insights of the potential benefit and remaining challenges about the use of these drugs in this important age group. Further, we will present a meta-analysis of the main effects of SGLT2i reported in post-hoc studies in which the median age of the subgroups analyzed was over 60 years. Despite the absence of specific clinical trials for this population, our findings suggest that SGLT2i therapy on older individuals is effective to lower glucose and maintain its effect on systolic blood pressure and body weight.
POR UMA SOCIOLOGIA DO CUIDADO: REFLEXÕES PARA ALÉM DO CAMPO DA SAÚDE
Authors: Contatore Octávio Augusto , Malfitano Ana Paula Serrata , Barros Nelson Filice de
Published: February 2019

Resumo Embora a pesquisa sobre o cuidado esteja predominantemente associada ao campo da saúde, os estudos sociológicos ressaltam que os elementos que o influenciam não se restringem a ele, na medida em que é a expressão de apoio social intenso e atributo fundamental para a manutenção da vida coletiva. Objetivou-se hipervisibilizar a dimensão sociológica do cuidado para problematizar sua transposição como fator necessário à vida social para uma ação técnica de saúde. Realizou-se uma revisão sistemática de literatura, entre 2003 e 2013, na Biblioteca Virtual em Saúde, PubMed, Scopus, Embase, Web of Science, Francis (Ovid), ProQuest Central, Academic Search Premier (EBSCOhost), Jstor e Sage, com o unitermo cuidado e variantes. De 262 artigos identificados, foram selecionados 15 sobre as dimensões sociais do cuidado. Observou-se que o cuidado aludiu à solidariedade e qualidade da interação entre sujeitos nas microrrelações e nas macroestruturas, diferenciando-se de sua aplicação técnica/tecnológica em saúde; e também que é mais abrangente defini-lo sociologicamente do que pela especificidade de um ato, pois inclui dimensões de solidariedade, respeito, zelo e ajuda mútua para a conservação da vida. Concluiu-se que uma abordagem sociológica do cuidado é necessária, contribuindo inclusive para o campo da saúde.
Knowledge and experience of Family Health Team professionals in providing healthcare for deaf people
Authors: Reis Vânia de Santana Lima , Santos Adriano Maia dos
Published: February 2019

ABSTRACT Objective: to explore the communication of family health team professionals in providing healthcare for deaf people. Methods: this cross-sectional study was comprised of 39 Family Health teams located in urban and rural areas. A census was conducted and some questionnaires were applied to the Family Health Professionals (31 doctors, 30 nurses, 27 dental surgeons and 4 pharmacists) from the Family Health Support Centers. Results: the great majority of the personnel (60.8%) reported being aware of the existence of Brazilian Sign Language, but none of the interviewees had used it to communicate. Most of the Family Health Team personnel (68.5%) had provided care to a deaf person at some time. However, none of them had taken a complementary course or received any specialized training. Conclusion: the relational dimension is fundamental in developing individual therapy plans. From this perspective, the communication barriers that deaf people face can compromise the necessary bonding for healthcare, which may adversely affect early diagnosis, timely treatment, and adherence to required treatment.
Sexualidade e reprodução na Política Nacional de Saúde do Homem: reflexões a partir da perspectiva de gênero
Authors: Dantas Suellen Maria Vieira , Couto Marcia Thereza
Published: February 2019

Resumo O presente estudo mapeia repertórios relativos à sexualidade e à reprodução presentes na política brasileira de saúde do homem. Amparadas pelos Estudos de Gênero, pensamento foucaultiano e estudos em Saúde Coletiva, foram analisados o seu documento-base, documentos vinculados à construção da PNAISH e publicações nas páginas da rede social Facebook “Saúde do Homem-Ministério da Saúde” e “Secretaria Municipal da Saúde de São Paulo”. Observou-se que a sexualidade em seu sentido amplo é pouco abordada, havendo ênfase sobre a potência sexual. Apesar de esforços, não houve plena incorporação de discursos de responsabilização igualitária pela reprodução e a parentalidade. Ainda são necessárias ações que trabalhem as resistências a maiores liberdades e igualdades sexuais e reprodutivas.
Memórias, histórias e linguagens da dor e da luta no ativismo brasileiro de HIV/Aids
Authors: Valle Carlos Guilherme do
Published: February 2019

Resumo Este artigo pretende discutir questões que vêm sendo abordadas e apresentadas publicamente por parte do ativismo social de HIV/Aids no Brasil. As questões de memória e história do movimento social e da sociedade civil estão presentes sempre que o ativismo sofre com dilemas e obstáculos de continuidade social e manutenção institucional. Assim, eventos e comemorações são organizados e expressam uma forte linguagem cultural das emoções, muitas vezes materializados através de objetos, cartazes e fotografias. Por meio de pesquisa antropológica baseada em etnografia e interpretação de documentos, pretendo discutir como se dá uma política de memória, a manutenção de uma tradição de conhecimento ativista e a produção de certos silenciamentos do passado, que encobrem e enquadram de um determinado modo a história das ONGs brasileiras e seus ativismos.
HIV/AIDS e a ética do cuidado a partir da experiência de mulheres ativistas no Rio de Janeiro
Authors: Cajado Luciana Corrêa de Sena , Monteiro Simone
Published: February 2019

Resumo Orientado pelos estudos do care, este texto reflete sobre a noção do cuidado entre mulheres integrantes do Movimento Nacional das Cidadãs Posithivas (MNCP) no Rio de Janeiro. A partir de uma abordagem qualitativa, o trabalho descreve a entrada dessas mulheres no movimento social após o diagnóstico do HIV e analisa as suas práticas de (auto)cuidado. O trabalho de campo envolveu oito entrevistas e observação participante das atividades do MNCP entre 2014 e 2015. Os depoimentos ilustram a naturalização do cuidado de outros como uma responsabilidade das mulheres. Nas trajetórias das entrevistadas predominam situações de desigualdades sociais e de gênero que comprometem a qualidade de vida e o autocuidado. Os achados indicam a necessidade de se fomentar a reflexão sobre a ética do cuidado numa perspectiva feminista, no contexto do movimento social de mulheres soropositivas.
A invenção da vida na gestação: viver com HIV/aids e a produção do cuidado
Authors: Medeiros Diego da Silva , Jorge Maria Salete Bessa
Published: February 2019

Resumo O artigo apresenta a cartografia de uma jovem mulher vivendo com HIV/aids em suas três gestações. Trata-se de uma pesquisa qualitativa de orientação cartográfica que utilizou a técnica da usuária guia para acompanhar os processos de produção do cuidado no entrelaçamento das redes formais de atenção à saúde e as redes informais. A atualidade da epidemia de HIV/aids se concentra em práticas biomédicas, ilustradas na palavra de ordem “testar e tratar”; em contrapartida, ferramentas inspiradas nos direitos humanos estão perdendo força. O desejo de praticar o cuidado e a observância estrita ao protocolo presente nas redes formais de cuidado não protegem as usuárias do SUS de possíveis investidas de regulação dos corpos (medicalização) e, no limite, da violência. A produção do cuidado das gestantes vivendo com HIV/aids no seio da contemporânea epidemia de HIV/aids está articulada à compreensão do fenômeno do machismo, do estigma, do preconceito, da discriminação e de questões socioeconômicas.
Nem santa, nem puta, apenas mulher: a feminização do HIV/aids e a experiência de soropositividade
Authors: Lourenço Gilclécia Oliveira , Amazonas Maria Cristina Lopes de Almeida , Lima Ricardo Delgado Marques de
Published: February 2019

Resumo Este estudo objetivou problematizar como as dimensões socio-históricas de gênero e os elementos discursivos das sexualidades se correlacionam com as vivências de mulheres soropositivas em relação ao vírus HIV. Trata-se de uma pesquisa de campo de abordagem qualitativa em que foram entrevistadas, individualmente, dez mulheres soropositivas. O diagnóstico dessas mulheres aponta para a fragilidade da relação conjugal, desvela o mito do amor ideal e enfatiza a relação de desigualdade estabelecida entre os gêneros. Conclui-se que o grupo social das mulheres, devido à iniquidade de gênero, ainda é socialmente mais vulnerável ao acometimento do vírus.
Home visits of the nurse and its relationship with hospitalization by diseases sensitive to primary health care
Authors: Garcia Mayra Romélia Leite , Sacramento Daniel Souza , Oliveira Hadelândia Milon de , Gonçalves Maria Jacirema Ferreira
Published: February 2019

Abstract Objective: To identify if nurses' home visits recorded by the family health strategy are proportional to the registered population and the population covered by the family health team, and its relationship with the rate of hospitalization for conditions sensitive to primary health care. Method: Secondary data were gathered from the Information Systems of Primary Care and Hospitalization regarding potential population coverage, number of visits done, hospitalizations for diseases sensitive to primary health care. An exploratory analysis was performed with data grouping for triennium (2010-2012 and 2013-2015) and assignment of scores for each variable, creating the classification strata in: low, medium and high. Results: It was identified that the number of registered home visits does not meet the estimated population coverage as well as does not impact on the admissions sensitive to primary health care. Conclusion and implications for practice: Even with high coverage of the family health strategy, home visits are not the main focus of nurses yet. Home visits should be used as a tool for disease prevention and health promotion, which may explain the non-reduction of hospitalizations sensitive to primary health care.
Acoustic Voice Quality Index - AVQI para o português brasileiro: análise de diferentes materiais de fala
Authors: Englert Marina , Lima Livia , Constantini Ana Carolina , Latoszek Ben Barsties v. , Maryn Youri , Behlau Mara
Published: February 2019

RESUMO Objetivo Verificar a melhor amostra de fala para validação do AVQI para o português-brasileiro; identificar o contexto de fala com melhor correlação perceptivo-acústica e que possui maior acurácia diagnóstica com o AVQI. Método Gravações de 50 sujeitos (disfônicos e vocalmente saudáveis), incluindo: vogal/a/; meses do ano; números (1 a 20) e repetição das frases do CAPE-V. As amostras de fala foram editadas para conter três diferentes durações mais vogal: D1-fala completa; D2-fala com 3s de segmentos sonoros; D3-fala com ponto de corte pré-determinado. Três avaliadores realizaram a análise perceptivoauditiva (APA) das amostras combinadas em 3 contextos seguidos da vogal e deram um único escore do desvio vocal (G:0 a 3). Verificou-se qual estímulo de fala possuía melhor correlação perceptivo-acústica considerando o Gmédio; analisou-se qual estímulo possuía melhor acurácia diagnóstica considerando como presença ou ausência G<0,5 e G<0,68. Resultados A correlação perceptivo-acústica variou de r = 0,482 a r = 0,634 (Correlação de Spearman); números apresentou os valores mais elevados. O AVQI foi altamente específico e pouco sensível. Considerando G<0,5, a melhor sensibilidade e valor da curva ROC foi para frases em D3 (0,578;0,72). Considerando G<0,68, houve boa acurácia diagnóstica para números de 1 a 10 e maior sensibilidade para números de 1 a 20. Conclusão Melhor correlação perceptivo-acústica foi para números, 1 a 10. As frases do CAPE-V produziram melhor acurácia diagnóstica com G<0,5, números apresentou elevada acurácia diagnóstica com G<0,68. Números é bastante usual na clínica brasileira, logo, sugere-se seu uso para validação e análises do AVQI.
Metadados de negócio: representação da informação dos processos de trabalho
Authors: BRANDT Mariana Baptista , VIDOTTI Silvana Aparecida Borsetti Gregorio
Published: February 2019

Resumo Metadados são considerados elementos fundamentais na Ciência da Informação e suas características, aplicações e tipologias vêm sendo bastante estudados pelos pesquisadores da área, principalmente a partir dos anos 2000. Esta pesquisa busca trazer para a Ciência da Informação e propor o estudo de um novo tipo de metadado, o chamado metadado de negócio. Metadados de negócio são o contexto do negócio, na linguagem dos atores do negócio, por trás dos dados e podem ser encontrados em qualquer processo de trabalho nos diferentes setores das diversas instituições. Considerando a falta de literatura brasileira sobre este tipo de metadado na Ciência da Informação, objetiva-se trazer o conceito, aplicações, exemplos e estudos sobre metadados de negócio, por meio de pesquisa bibliográfica. A pesquisa é de natureza teórica e conceitual, caracterizando-se como pesquisa exploratória. Desse modo, observam-se nos metadados de negócio características bastante pertinentes aos conceitos e princípios da Ciência da Informação. Isso permite concluir que este conceito pode e deve ser inserido na área, principalmente nos estudos relacionados à Arquitetura da Informação, Sistemas de Informação e Recuperação da Informação.
Falsa percepção de gratuidade: a prática do zero-rating e o Marco Civil da Internet
Authors: GARCIA E SILVA Hermann Bergmann , MARQUES Rodrigo Moreno
Published: February 2019

Resumo Diante das recentes iniciativas para eliminação, nos Estados Unidos, das regras de tratamento não discriminatório do fluxo de informações e conteúdos na Web, surgem novos desafios para a governança da Internet, notadamente no que se refere à regulação de práticas que restringem o acesso informacional dos usuários. No contexto brasileiro, o Marco Civil da Internet estabeleceu a neutralidade de rede como um princípio norteador para o uso da Internet no país, ou seja, instituiu a obrigação de tratamento isonômico dos pacotes de dados que carregam o conteúdo que circula na Internet. Nesse cenário, a presente investigação tem como objetivo confrontar a oferta de gratuidade no tráfego de dados associados a determinadas aplicações ou conteúdos, prática denominada de zero-rating, com o princípio da neutralidade de rede. Para tanto, foi desenvolvida uma pesquisa descritiva de natureza qualitativa, fundamentada em análises bibliográfica e documental. Os resultados apontam que o zero-rating não é compatível com as disposições normativas estabelecidas no marco regulatório para a Internet no Brasil. Em síntese, a pesquisa problematiza e questiona as práticas que limitam a circulação de conteúdos e inibem a liberdade de escolha dos usuários na rede mundial, confrontando-as com a governança da Internet no Brasil.
Implications of concomitance in technical education financed by Pronatec in the Mato Grosso do Sul state education network (2012-2015)
Authors: Oliveira Arão Davi , Ferreira Valdivina Alves , Silva Celeida Maria Costa de Souza e
Published: February 2019

Abstract The National Program for Access to Technical Education and Employment (Pronatec) is a program for financing technical education launched in 2011 under the government of Dilma Rousseff (2011-2016) enacted by Law 12.513/2011. Among its actions is the promotion of the Technical Education Networks in the states. This research study discusses the implications of concomitance in the technical education courses financed by Pronatec in the Mato Grosso do Sul State Education Network (REE / MS), in the period from 2012 to 2015. It is a documentary, bibliographical and empirical research study that uses Gramsci’s concept of “state” (1991) and Harvey’s of “flexible capital accumulation” (1992). Semi-structured interviews were conducted with four managers who participated at the implementation of Pronatec in the REE/MS, during the period studied. The results indicate that in the REE/MS the Pronatec prioritized courses concomitant with or subsequent to standard higher secondary education courses and that resulted in high dropout and failure rates in the studied period.
Genotype x Environment Interaction for reproductive traits in brazilian Nellore breed cattle
Authors: Carvalho Caio Victor Damasceno , Costa Raphael Bermal , Camargo Gregório Miguel Ferreira de , Bittencourt Thereza Cristina Calmon
Published: February 2019

SUMMARY The objective of this study was to evaluate the effect of the genotype-environment interaction (GEI) for scrotal circumference traits measured at different ages, 365 (SC365), 450 (SC450) and 550 (SC550) days of age, and age at first calving (AFC) for Nellore animals raised in different regions of Brazil. For the evaluation, the herds were grouped in the following regions of the country: North, Southeast and Central-west, using information from 26,619, 28,730, 14,476, 15,397 for the traits SC365, SC450, SC550 and AFC respectively. Genetic parameters, as well as the assessment of GEI were performed using Bayesian inference, using the programs of the BLUPF90. The estimated heritabilities were: 0.465 ± 0.021, 0.500 ± 0.022, 0.492 ± 0.026, 0.117 ± 0.017 for SC365, SC450, SC550 and AFC respectively. The results obtained in the analysis, indicated that this interaction was not significant for SC at different ages (genetic correlation, rg> 0.8). For AFC, significant effect of GEI was observed for combinations involving the Northern region (rg<0.8), indicating that this interaction should be considered by the genetic evaluation programs in this region.
Flour of mushroom Agaricus blazei as additive functional in food of laying hens
Authors: Freitas Iolanda Silveira , Mendonça Michele de Oliveira , Freitas Izabela Silveira , Almeida Neto Onofre Barroca de , Ferreira David Garcia , Salgado Hallef Rieger , Jesus Paula Daniella Aparecida de
Published: February 2019

SUMMARY The current study aims to evaluate the zootechnical performance, quality of eggs, and the immune system of the laying hen's upon supplementing their feed with the flour of the mushroom Agaricus blazei. A total of 210 Hisex Brown® hens, 67 weeks old, were distributed in a completely randomized design with five treatments (control [0%], 0.04%, 0.08%, 0.12% and 0.16% of mushroom meal) with seven replicates and six birds per experimental unit. Were evaluated the zootechnical performance (feed intake, egg production [per day and housed], marketable egg production, egg weight and egg mass, feed conversion per dozen and egg mass, and viability);egg quality (specific weight, Haugh units, weight and percentage of components, shell thickness and yellow intensity of the egg yolks); and the hemogram (erythrogram and leukogram). Mainly, different levels of mushroom meal, were includedin laying hens feeds significantly (p<0.05)egg mass and feed intake. However, the leukogram and the erythrogram remained within the reference values, indicating that the birds were healthy. The addition of different levels of Agaricus blazei flour in the laying hens feed did not promote changes in the egg quality, in the immune system, and in the zootechnical performance, except for the feed intake which reduced with the inclusion of mushroom flour and eggs mass in which the 0.07% level promoted the maximization of this parameter.
Production of components with plaster residue and sodium citrate: physical, mechanical, rheological analysis
Authors: Silva Deborah Grasielly Cipriano da , Santana Clóvis Veloso de , Póvoas Yeda Vieira
Published: February 2019

Abstract The construction industry, a major influencer in Brazil’s economic and social development, is responsible for a large consumption of raw materials and waste production. In particular, plaster presents significant growth, especially in the Northeast, due to the region of Araripe, great producer of this construction material. Considering the serious problems caused by the incorrect disposal of plaster in nature, there is the challenge of its recycling process. This research aimed to analyze several percentages of plaster residues to be added to the plaster paste, with and without retarder additive (sodium citrate), in terms of physical, mechanical, and rheological properties, focusing at the production of components. For that, the residue underwent physic-chemical recycling process to be replaced by plaster or by mass, in the percentages of 25%, 50%, 75% and 100%. The study of the performance of the material was done through the tests of granulometry, unit mass, mini-slump method, calorimetry, squeeze-flow method, compressive strength, and surface hardness. The results showed that the recycled plaster (RP) did not excessively damage the studied properties, and it was permissible to substitute up to 50% of RP in the production of the paste for components, following the recommendations of the recycling process and water/plaster ratio.
Synergistic effect of RHA and FCW in alkali-aggregate reaction mitigation
Authors: Guillante Patrícia , Abreu Aguida Gomes de , Kulakowski Marlova Piva , Mancio Maurício , Kazmierczak Claudio de Souza
Published: February 2019

Abstract Pozzolans rich in silica, such as Rice Husk Ash (RHA), contribute to compressive strength gain but at the same time might increase alkali-aggregate reaction (AAR) in mortar mixtures. Pozzolans that have aluminates, such as Fired Clay Brick Waste (FCW), can be efficient to mitigate AAR but tend to lead to a slower compressive strength development. The association of different types of pozzolans, however, may result in a synergistic effect, compensating individual deficiencies. This paper presents a study of mixtures containing RHA, FCW and these two materials combined, aiming to obtain benefits in the mechanical behavior and in the durability regarding AAR. A substitution rate of 20% Portland cement by pozzolanic material was used. Through accelerated AAR tests and compressive strength measurements, it was found that while RHA is considered harmful to AAR - even when using an innocuous aggregate - FCW presents benefits, also avoiding this deleterious effect when combined with RHA. The same occurs in the compressive strength development, where RHA compensates a small loss of compressive strength associated with the use of FWC alone.
Evaluation of the self-cemeting effect of Construction and Demotion Waste (CDW) on mechanical performance over time for pavement support layers purpose
Authors: Artuso Fabiana , Lukiantchuki Juliana Azoia
Published: February 2019

Abstract The problem related to the generation of construction and demolition waste (CDW) is directly associated with its high volume and irregular disposal, especially when such waste is disposed of in landfills. Therefore, it is increasingly important to encourage the reuse of this material, especially in large-scale projects. However, the use of this waste depends on the different constituent materials, which show a wide variability. Within this context, the objective of this work was to study the mechanical performance of construction and demolition waste over time aiming at the use in pavement support layers. Two samples were evaluated, one composed exclusively of construction waste (CDW_1) and the other composed of a soil-waste mixture (S_CDW), with 50% of each material. The tests evaluated the strength of the materials over a curing period from 0 to 224 days. The results clearly indicate an increase in strength and stiffness over time. The CDW_1 samples indicated a more significant increase. The analyses indicated that this behavior occurs due to the effect of self-cementing properties that occur in this type of waste. The results indicate a benefit in terms of strength when using this type of waste either alone or mixed with soil.
Influence of the moisture content on the dynamic modulus of elasticity of concrete made with recycled aggregate
Authors: Kazmierczak Claudio de Souza , Boaro Joana Kirchner Benetti , Lunardi Monique Palavro , Kulakowski Marlova Piva , Mancio Mauricio
Published: February 2019

Abstract The elastic behavior of the concrete is estimated from its strength or determined by static or dynamic tests. However, because the codes of practice do not standardize the internal moisture content of the concrete and disregard the use of recycled aggregates when proposing equations for the estimation of the modulus of elasticity, discrepancies between the values measured and estimated are frequent. The influence of the moisture content of concrete containing basaltic coarse aggregates and coarse recycled concrete aggregate in the dynamic modulus of elasticity is discussed in this paper. A basalt coarse aggregate and two recycled coarse aggregates where used. For each type of coarse aggregate, concrete with compression strength between 25 MPa and 55 MPa were produced. The dynamic modulus of elasticity of the saturated samples were determined and range from 26 GPa to 46 GPa. There is a significant difference in the value of the dynamic modulus of elasticity for dry concrete versus saturated concrete, also influenced by the type of aggregate. Estimations of the modulus of elasticity from the compressive strength equations proposed by the codes of practice must be improved considering its characteristics.
Avaliação de modelos preditivos de conforto térmico em escritórios no clima subtropical brasileiro
Authors: Rupp Ricardo Forgiarini , Ghisi Enedir
Published: February 2019

Resumo O objetivo deste trabalho é comparar as respostas subjetivas de usuários de escritórios localizados no clima subtropical brasileiro, ao longo das quatro estações climáticas, com os modelos de conforto térmico (analítico e adaptativo) da ASHRAE 55 (2017). Estudos de campo sobre conforto térmico foram realizados em quatro edificações de escritórios em Florianópolis/SC durante dois anos. Uma das edificações operou com sistema de ar-condicionado central, enquanto as demais edificações operaram com ventilação híbrida (usuários controlaram o sistema de ar-condicionado e a operação de aberturas). Questionários de conforto térmico foram aplicados, ao mesmo tempo e no mesmo espaço, em que medições das variáveis ambientais (temperatura do ar, umidade relativa, temperatura radiante média e velocidade do ar) foram realizadas. Mais de 7.500 respostas dos usuários foram coletadas durante os estudos de campo, as quais foram comparadas com os modelos da ASHRAE 55. O modelo analítico superestimou as sensações de frio e de calor dos usuários e também não estimou adequadamente a porcentagem de insatisfeitos em todas as estações climáticas e edificações. Durante a operação da ventilação natural, os usuários das edificações com ventilação híbrida se adaptaram às variações térmicas internas de acordo com o modelo de conforto térmico adaptativo.
Conforto térmico em espaços abertos no clima quente e úmido: estudo de caso em um parque urbano no Bioma Mata Atlântica
Authors: Lima Linccon de Carvalho , Leder Solange Maria , Silva Luiz Bueno da , Souza Erivaldo Lopes de
Published: February 2019

Resumo Estudos de conforto térmico em espaços climatizados apresentam limitações ao desconsiderar a adaptação do indivíduo às condições ambientais. Com objetivo de superar as limitações dos modelos atuais de conforto térmico, pesquisas têm sido realizadas para identificar os limites de conforto em ambientes sem climatização e em condições naturais, dentre elas, destacam-se os estudos de conforto em espaços abertos. Nesse contexto, este estudo tem como objetivo geral avaliar a sensação térmica dos visitantes de um parque urbano em João Pessoa-PB, uma cidade de clima quente e úmido no nordeste do Brasil. O Parque Urbano utilizado como área de estudo é uma das principais áreas verdes da cidade de João Pessoa. A metodologia aplicada utilizou de monitoramento microclimático das variáveis: temperatura do ar, temperatura do globo, umidade relativa do ar, velocidade do ar e radiação solar. Também foram aplicados 900 questionários estruturados para avaliar a sensação térmica dos usuários. Os resultados mostraram que 70% dos entrevistados estavam confortáveis quando a temperatura do ar estava entre 26 e 31 ºC. Através de modelagem matemática observou-se que existe efeito significativo das variáveis ambientais sobre a sensação térmica real. Comparando a sensação térmica com os índices calculados PMV, SET e PET, o intervalo encontrado para o índice PET de 24 a 34 ºC foi o que melhor refletiu a sensação térmica real dos entrevistados.
Influência da espessura de revestimentos de argamassa no desempenho acústico de alvenarias de blocos cerâmicos
Authors: Klippel Filho Sérgio , Labres Henrique Santos , Pacheco Fernanda , Oliveira Maria Fernanda de , Tutikian Bernardo Fonseca
Published: February 2019

Resumo Percebe-se uma maior preocupação com o desempenho das edificações habitacionais após a publicação da NBR 15575 (ABNT, 2013a), tornando indispensável a avaliação e possível adequação de sistemas construtivos e seus materiais para atendimento dos requisitos. Dentre as imposições relativas à habitabilidade, encontra-se o desempenho acústico, imprescindível na concepção de projetos em ambientes urbanos, dadas as inúmeras fontes sonoras potentes existentes. O objetivo deste artigo foi de verificar a influência da espessura de revestimentos de argamassa estabilizada, aplicados em alvenarias com dois tipos de blocos cerâmicos, com variação nas espessuras internas e externas de argamassa, verificando a relação entre o incremento de massa, a curva de isolamento e o índice de redução sonora ponderado (Rw). Os ensaios foram executados em ambiente laboratorial, seguindo as prescrições da ISO 10140-2 (INTERNATIONAL..., 2010b). Foi possível relacionar a espessura de revestimento com o desempenho acústico, resultando na redução de insumos, custos e peso próprio da edificação. Identificou-se que o incremento de 5 cm de revestimento de argamassa acarretou em um aumento de até 7 dB no isolamento sonoro entre ambientes.