bluuebunny/crossref_metadata_2025 huggingface dataset:
Resistência de clones de seringueira à infestação por ácaros
Authors: Vieira Marineide Rosa , Martins Gustavo Luís Mamoré , Scaloppi Junior Erivaldo José
Published: January 2014

Calacarus heveae Feres (Eriophyidae) e Tenuipalpus heveae Baker (Tenuipalpidae) podem causar intenso desfolhamento em plantas de seringueira. Na perspectiva de implantação de manejo integrado de pragas, o uso de clones resistentes pode vir a ser uma importante estratégia de controle. O objetivo deste trabalho foi avaliar a resistência de clones de seringueira ao ataque desses ácaros em experimento conduzido em Votuporanga, SP. O delineamento experimental foi o de blocos casualizados com 18 tratamentos e três repetições, sendo que os tratamentos adotados foram: clones PB 230, PB 243, PB 252, PB 294, PB 306, PB 311, PB 312, PB 314, PB 324, PB 346, PB 350, PB 355, IAC 56, IAC 302, IAC 328, IAC 334, Fx 3899 e RRIM 600. As avaliações populacionais de C. heveae e T. heveae foram realizadas pela contagem em laboratório dos ácaros e exúvias presentes em seis folíolos por parcela. Os níveis de desfolhamento foram avaliados com uma escala de notas de 0 a 4, sendo 0 ausência de desfolhamento e 4 desfolhamento acima de 75%. Com base nos resultados pode-se concluir que o clone Fx 3899 é resistente a C. heveae por não preferência e/ou antibiose. O clone IAC 56 é menos suscetível ao desfolhamento provocado pela infestação de C. heveae e T. heveae.
Efeito da época de poda e da desfolha na interceptação de radiação solar na videira Bordô
Authors: Radünz André Luiz , Schöffel Edgar Ricardo , Hallal Márcia Oliveira Curi , Brixner Gabriel Franke
Published: January 2014

O presente trabalho teve por objetivo determinar a influência da desfolha e da época da poda seca sobre o albedo e sobre a radiação solar disponível ao nível dos cachos e determinar o efeito da radiação solar sobre o acúmulo de sólidos solúveis da videira. Foram realizadas duas épocas de poda seca e a desfolha em parte do vinhedo da cultivar Bordô conduzida no sistema pérgula. A radiação solar foi medida utilizando-se tubos solarímetros instalados em cada tratamento, sendo o teor de sólidos solúveis determinado no momento da colheita, com um refratômetro de campo. A realização da poda seca exerceu influência sobre o albedo, sendo que o maior albedo da videira Bordô é observado quando a poda seca ocorreu na época normal (meados de setembro) e sem desfolha. Para o período compreendido entre a poda e a desfolha, o albedo variou entre 0,28 e 0,30. Os resultados demonstram que o adiamento da poda seca representa redução na quantidade de radiação solar disponível ao nível dos cachos, ao mesmo tempo em que a realização da desfolha propicia aumento na radiação que incide ao nível dos cachos. O acúmulo de sólidos solúveis está relacionado com a radiação solar disponível ao nível dos cachos.
Pseudoaneurismas em associacao com infeccao pelo virus da imunodeficiencia humana: relato de dois casos
Authors: Tenorio Guilon Otavio Santos , Silvestre Jose Manoel Silva , Sardinha Wander Eduardo , Ramires Eduardo Durante , Morais Filho Domingos de , Oliveira Rodrigo Gomes de , Trevisan Fernando Barbosa , Dias Silfayner Victor Mathias
Published: January 2014

Os autores descrevem os casos de dois pacientes que apresentaram pseudoaneurismas e ressaltam a dificuldade diagnóstica e terapêutica por apresentar associação com a infecção pelo vírus da imunodeficiência humana, e também demonstram a semelhança com aneurisma sacular aterosclerótico da aorta abdominal
Base eletronica de dados clinicos e cirurgicos em isquemia cronica de membros inferiores
Authors: Nejm Junior Carlos Seme , Timi Jorge Rufino Ribas , Amaral Valentina Bistolf
Published: January 2014

CONTEXTO: Um sistema eletrônico de protocolo seria capaz de armazenar dados clínicos e possibilitar futuras pesquisas, visando a rapidez, eficiência de cruzamentos e análise de tais dados. OBJETIVO: a) criar uma base de dados clínicos cirúrgicos em doenças vasculares e, a partir desta, uma base em Isquemia Crônica de Membros Inferiores; b) informatizar essa base sob forma de um protocolo eletrônico; c) incorporar ao SINPE(c) (Sistema Integrado de Protocolos Eletrônicos); d) realizar um projeto piloto. MÉTODOS: Criou-se uma base teórica de dados clínicos sobre as doenças vasculares. O protocolo específico foi criado considerando-se as características individuais das doenças causadoras de Isquemia Crônica de Membros Inferiores. Após seu término, essa base eletrônica e informatizada seria incorporada ao SINPE(c). RESULTADOS: O usuário, previamente cadastrado, realizará o cadastro do paciente e selecionará, dentro do protocolo mestre, o protocolo específico em Isquemia Crônica de Membros Inferiores, para acesso aos seus respectivos dados clínicos. Orientado pelas alternativas diretas de preenchimento, o usuário seleciona apenas os dados pertencentes ao seu paciente. Estes podem ser resgatados para pesquisa, mostrando o número de coletas que satisfazem os parâmetros escolhidos e informações estatísticas sobre a mesma. CONCLUSÃO: a) a criação da base teórica de dados clínicos e cirúrgicos em doenças vasculares e, a partir desta, em Isquemia Crônica de Membros Inferiores, foi factível; b) a informatização da base teórica sob forma de protocolo eletrônico foi exequível; c) o protocolo eletrônico mestre e específico poderá ser incorporado ao SINPE(c), d) o projeto piloto foi criado com sucesso e testado através do módulo analisador do SINPE(c).
Variacoes anatomicas dos vasos tibiais: diagnostico diferencial de trombose venosa profunda antiga pela ecografia vascular
Authors: Engelhorn Carlos Alberto , Cerri Giovanna , Coral Francisco , Gosalan Carlos Jose , Engelhorn Ana Luisa Dias Valiente
Published: January 2014

CONTEXTO: Apesar de a ultrassonografia vascular com Doppler colorido (UVDC) ser confiável na avaliação de TVP em membros inferiores, situações como variações anatômicas das veias tibiais podem limitar o diagnóstico ou mesmo induzir a um resultado falso-positivo. OBJETIVO: Apresentar uma variação anatômica das veias tibiais posteriores potencialmente responsável por resultados falso-positivos no diagnóstico da TVP antiga pela UVDC. MÉTODOS: Foram revisados exames de UVDC em pacientes com suspeita de trombose venosa profunda de membros inferiores realizados no período de janeiro a dezembro de 2012. Nestes, foram observados a presença, o número e o trajeto das veias profundas, e suas respectivas artérias. Os casos suspeitos de variação anatômica nas veias tibiais posteriores foram revisados por outro ultrassonografista vascular, para confirmação dos achados. A variação anatômica com agenesia ou hipoplasia das veias tibiais posteriores foi considerada somente quando a artéria tibial posterior também não foi identificada em toda a extensão ou nos respectivos segmentos nos quais não foram visibilizadas as veias. RESULTADOS: Foram realizados 1458 estudos pela UVDC em pacientes com suspeita de TVP em membros inferiores. Em seis pacientes (0,41%), houve agenesia parcial ou completa das veias tibiais posteriores. Cinco pacientes tiveram avaliação unilateral e um bilateral, totalizando sete membros inferiores, três membros inferiores direitos e quatro esquerdos. CONCLUSÃO: Apesar de encontrada em apenas 0,41% dos casos, o conhecimento da agenesia das veias posteriores é útil, a fim de diminuir erros diagnósticos e resultados falso-positivos para TVP em pacientes com essas variações.
Reduction of exposure to blood donors in preterm infants submitted to red blood cell transfusions using pediatric satellite packs
Authors: Uezima Cristina Lika , Barreto Ariane Moreira , Guinsburg Ruth , Chiba Akemi Kuroda , Bordin José Orlando , Barros Melca Maria O. , Santos Amélia Miyashiro N. dos
Published: January 2014

OBJECTIVE: In preterm newborn infants transfused with erythrocytes stored up to 28 days, to compare the reduction of blood donor exposure in two groups of infants classified according to birth weight. METHODS: A prospective study was conducted with preterm infants with birth weight <1000g (Group 1) and 1000-1499g (Group 2), born between April, 2008 and December, 2009. Neonates submitted to exchange transfusions, emergency erythrocyte transfusion, or those who died in the first 24 hours of life were excluded. Transfusions were indicated according to the local guideline using pediatric transfusion satellite bags. Demographic and clinical data, besides number of transfusions and donors were assessed. . Logistic regression analysis was performed to determine factors associated with multiple transfusions. RESULTS: 30 and 48 neonates were included in Groups 1 and 2, respectively. The percentage of newborns with more than one erythrocyte transfusion (90 versus 11%), the median number of transfusions (3 versus 1) and the median of blood donors (2 versus 1) were higher in Group 1 (p<0.001), compared to Group 2. Among those with multiple transfusions, 14 (82%) and one (50%) presented 50% reduction in the number of blood donors, respectively in Groups 1 and 2. Factors associated with multiple transfusions were: birth weight <1000g (OR 11.91; 95%CI 2.14-66.27) and presence of arterial umbilical catheter (OR 8.59; 95%CI 1.94-38.13), adjusted for confounders. CONCLUSIONS: The efficacy of pediatrics satellites bags on blood donor reduction was higher in preterm infants with birth weight <1000g.
Coverage and adequacy of ferrous sulfate supplementation in the prevention of anemia among children treated at health centers of Florianopolis, Santa Catarina
Authors: Cembranel Francieli , Corso Arlete Catarina T. , González-Chica David Alejandro
Published: January 2014

OBJECTIVE To evaluate the National Program of Iron Supplementation (PNSF) coverage, the compliance with the directions for of using of this supplementation and the association with sociodemographic factors in children aged six to 18 months old and registered in 35 public health centers of Florinópolis (Southern Brazil). METHODS Cross-sectional study using secondary data obtained from the health information system of the Health Department of Florianópolis, Santa Catarina, Brazil (Infosaúde). Data on ferrous sulfate supplementation and sociodemographic variables were obtained of all children registered in PNSF in Florianópolis in 2010. STATA 11.0 software was used in the analyses. RESULTS The PNSF covered 6.3% (95%CI 5.9-6.7) of the children; the compliance with the directions regarding age at the onset of supplementation and its frequency was adequate only in 2.4% of the cases (95%CI 1.5-3.7). There was no association with the child's gender, maternal education level and ethnicity or the distance from home to the health center. CONCLUSIONS This study showed low coverage and inadequate compliance with the PNSF directions. Measures to improve this strategy are urgent.
Effects of maternal nicotine on breastfeeding infants
Authors: Primo Cândida Caniçali , Ruela Priscilla Bôa F. , Brotto Léia Damasceno de A. , Garcia Telma Ribeiro , Lima Eliane de Fátima
Published: January 2014

OBJECTIVE To assess scientific evidence about the effects of maternal nicotine on infant by an integrative review. DATA SOURCES Studies published in Portuguese, English and Spanish, from 1990 to 2009, with abstracts available in the Latin American Health Sciences Literature (Lilacs) and Medical Literature Analysis and Retrieval System On-Line (Medline) databases. The descriptors were: "breastfeeding", "lactation" and "smoking". DATA SYNTHESIS The main identified effects of nicotine on infants were: changes in sleep and wakefulness patterns; reduction of iodine supply; hystopathological damage on liver and lung; intracellular oxidative damage; reduction of pancreatic ß cells; and decreased glucose tolerance. CONCLUSIONS It is recommended to inform mothers about harmful chemicals contained in cigarettes that can be secreted into breast milk. They should be strongly encouraged to stop smoking during lactation.
Methodological and ethical aspects of the sexual maturation assessment in adolescents
Authors: Faria Eliane Rodrigues de , Franceschini Sylvia do Carmo C. , Peluzio Maria do Carmo G. , Sant'Ana Luciana Ferreira da R. , Priore Silvia Eloiza
Published: January 2014

OBJECTIVE To analyze methodological and ethical aspects in the sexual maturation assessment of adolescents. DATA SOURCES Books and theses, articles and legislations on the Medline, SciELO, Science Direct databases, besides institutional documents of the World Health Organization and the Pediatric Societies of Brazil and São Paulo, considering the period from 1962 to 2012. The following keywords were used in Portuguese and English: "sexual maturation", "self-assessment", "ethics", "OBJECTIVE assessment of sexual maturation", "puberty", "adolescent", and "adolescentdevelopment". DATA SYNTHESIS The sexual maturation assessment is used in populatinal studies and in clinical daily care. The direct evaluation is performed by a specialized physician, whereas the self-assessment is carried out by the adolescent. This evaluation should be carefully performed in the appropriate place, taking into account the ethical aspects. The patient should not be constrained and the physician must respect the privacy and the confidentiality. Before this evaluation and independently of the used method, the adolescent should receive information and explanation about the procedure and the tools that will be applied. Furthermore, the patient has the right to want or not an adult close to him. CONCLUSIONS Validation studies showed that self-assessment is inferior to clinical assessment and should, therefore, be performed only when the direct examination by physicians is not possible.
Congenital esophageal stenosis owing to tracheobronchial remnants
Authors: Rebelo Priscila Guyt , Ormonde João Victor C. , Ormonde Filho João Baptista C.
Published: January 2014

OBJECTIVE To emphasize the need of an accurate diagnosis of congenital esophageal stenosis due to tracheobronchial remnants, since its treatment differs from other types of congenital narrowing. CASE DESCRIPTION Four cases of lower congenital esophageal stenosis due to tracheobronchial remnants, whose definitive diagnosis was made by histopathology. Except for the last case, in which a concomitant anti-reflux surgery was not performed, all had a favorable outcome after resection and anastomosis of the esophagus. COMMENTS The congenital esophageal stenosis is an intrinsic narrowing of the organâ€(tm)s wall associated with its structural malformation. The condition can be caused by tracheobronchial remnants, fibromuscular stenosis or membranous diaphragm and the first symptom is dysphagia after the introduction of solid food in the diet. The first-choice treatment to tracheobronchial remnants cases is the surgical resection and end-to-end anastomosis of the esophagus.
A first-year dornase alfa treatment impact on clinical parameters of patients with cystic fibrosis: the Brazilian cystic fibrosis multicenter study
Authors: Rozov Tatiana , Silva Fernando Antônio A. e , Santana Maria Angélica , Adde Fabíola Villac , Mendes Rita Heloisa
Published: January 2014

OBJECTIVE: To describe the clinical impact of the first year treatment with dornase alfa, according to age groups, in a cohort of Brazilian Cystic Fibrosis (CF) patients. METHODS: The data on 152 eligible patients, from 16 CF reference centers, that answered the medical questionnaires and performed laboratory tests at baseline (T0), and at six (T2) and 12 (T4) months after dornase alfa initiation, were analyzed. Three age groups were assessed: six to 11, 12 to 13, and >14 years. Pulmonary tests, airway microbiology, emergency room visits, hospitalizations, emergency and routine treatments were evaluated. Student's t-test, chi-square test and analysis of variance were used when appropriated. RESULTS: Routine treatments were based on respiratory physical therapy, regular exercises, pancreatic enzymes, vitamins, bronchodilators, corticosteroids, and antibiotics. In the six months prior the study (T0 phase), hospitalizations for pulmonary exacerbations occurred in 38.0, 10.0 and 61.4% in the three age groups, respectively. After one year of intervention, there was a significant reduction in the number of emergency room visits in the six to 11 years group. There were no significant changes in forced expiratory volume in one second (VEF1), in forced vital capacity (FVC), in oxygen saturation (SpO2), and in Tiffenau index for all age groups. A significant improvement in Shwachman-Kulczychi score was observed in the older group. In the last six months of therapy, chronic or intermittent colonization by P. aeruginosa was detected in 75.0, 71.4 and 62.5% of the studied groups, respectively, while S. aureus colonization was identified in 68.6, 66.6 and 41.9% of the cases. CONCLUSIONS: The treatment with dornase alfa promoted the maintenance of pulmonary function parameters and was associated with a significant reduction of emergency room visits due to pulmonary exacerbations in the six to 11 years age group, with better clinical scores in the >14 age group, one year after the intervention.
Influence of prematurity and birth weight on the concentration of ?-tocopherol in colostrum milk
Authors: Grilo Evellyn Câmara , Lira Larissa Queiroz de , Dimenstein Roberto , Ribeiro Karla Danielly da S.
Published: January 2014

OBJECTIVE: To assess vitamin E levels in the breast milk, analyzing the prematurity and the birth weight influence in α-tocopherol concentration of colostrum milk. METHODS: Cross-sectional study, in which the colostrum was collected from 93 nursing mothers in a public maternity of Natal, Rio Grande do Norte, Northeast Brazil. The newborns were classified based on gestational age and birth weight. The analysis of α-tocopherol in the milk was carried out by high performance liquid chromatography. RESULTS: The α-tocopherol concentration in the colostrum of lactating women whose children were born at term was 1,093.6±532.4µg/dL; for preterm infants, the concentration was 1,321.6±708.5µg/dL (p=0.109). In the preterm group, the α-tocopherol concentration in the colostrum of lactating women whose children were born with low and normal birth weight was 1,316.0±790.7 and 1,327.2±655.0µg/dL, respectively (p=0.971). In the term group, the α-tocopherol levels were higher in mothers of children with birth weight >4000g, being 1,821.0±575.4µg/dL, compared to 869.5±532.1µg/dL and 1,039.6±477.5µg/dL with low and adequate birth weight, respectively (p>0.05). CONCLUSIONS: Prematurity did not influence α-tocopherol levels in the colostrum milk. Mothers who had macrossomic term neonates presented increased α-tocopherol levels. These results indicate that birth weight can influence α-tocopherol leves in the colostrum milk.
Manual vibrocompression and nasotracheal suctioning in post-operative period of infants with heart deffects
Authors: Assumpção Maíra Seabra de , Gonçalves Renata Maba , Krygierowicz Lúcia Cristina , Orlando Ana Cristina T. , Schivinski Camila Isabel S.
Published: January 2014

OBJECTIVE: To evaluate the impact of manual vibrocompression and nasotracheal suctioning on heart (hr) and respiratory (rr) rates, peripheral oxygen saturation (SpO2), pain and respiratory distress in infants in the postoperative period of a cardiac surgery. METHODS: Randomized controlled trial, in which the assessments were performed by the same physiotherapist in two moments: before and after the procedure. The infants were randomly divided into two groups: Intervention (IG), with manual chest vibrocompression, nasotracheal suctioning and resting; and Control CG), with 30 minutes of rest. Cardiorespiratory data (SpO2; hr; rr) were monitored and the following scales were used: Neonatal Infant Pain Scale (NIPS), for pain evaluation, and Bulletin of Silverman-Andersen (BSA), for respiratory distress assessment. The data were verified by analysis of variance (ANOVA) for repeated measures, being significant p<0.05. RESULTS: 20 infants with heart disease, ten in each group (seven acyanotic and three cyanotic) were enrolled, with ages ranging from zero to 12 months. In the analysis of the interaction between group and time, there was a significant difference in the variation of SpO2 (p=0.016), without changes in the other variables. Considering the main effect on time, only rr showed a significant difference (p=0.001). As for the group main effect, there were no statistical differences (SpO2 - p=0.77, hr - p=0.14, rr - p=0.17, NIPS - p=0.49 and BSA - p=0.51 ). CONCLUSIONS: The manual vibrocompression and the nasotracheal suctioning applied to infants in postoperative of cardiac surgery did not altered SpO2 and rr, and did not trigger pain and respiratory distress. [Brazilian Registry of Clinical Trials (ReBEC): REQ: 1467].
Lack of difference between continuous versus intermittent heparin infusion on maintenance of intra-arterial catheter in postoperative pediatric surgery: a randomized controlled study
Authors: Witkowski Maria Carolina , Moraes Maria Antonieta P. de , Firpo Cora Maria F.
Published: January 2014

OBJECTIVE: To compare two systems of arterial catheters maintenance in postoperative pediatric surgery using intermittent or continuous infusion of heparin solution and to analyze adverse events related to the site of catheter insertion and the volume of infused heparin solution. METHODS: Randomized control trial with 140 patients selected for continuous infusion group (CIG) and intermittent infusion group (IIG). The variables analyzed were: type of heart disease, permanence time and size of the catheter, insertion site, technique used, volume of heparin solution and adverse events. The descriptive variables were analyzed by Student's t-test and the categorical variables, by chi-square test, being significant p<0.05. RESULTS: The median age was 11 (0-22) months, and 77 (55%) were females. No significant differences between studied variables were found, except for the volume used in CIG (12.0±1.2mL/24 hours) when compared to IIG (5.3±3.5mL/24 hours) with p<0.0003. CONCLUSIONS: The continuous infusion system and the intermittent infusion of heparin solution can be used for intra-arterial catheters maintenance in postoperative pediatric surgery, regardless of patient's clinical and demographic characteristics. Adverse events up to the third postoperative day occurred similarly in both groups. However, the intermittent infusion system usage in underweight children should be considered, due to the lower volume of infused heparin solution [ClinicalTrials.gov Identifier: NCT01097031].
Lipoprotein (a) and cardiovascular risk factors in children and adolescents
Authors: Palmeira Ástrid Camêlo , Leal Adriana Amorim de F. , Ramos Nathaly de Medeiros N. , F. Neto José de Alencar , Simões Mônica Oliveira da S. , Medeiros Carla Campos M.
Published: January 2014

OBJECTIVE: To review the relationship between lipoprotein (a) [Lp(a)] and other risk factors for cardiovascular disease (CVD) in children and adolescents. DATA SOURCES: This systematic review included studies from 2001 to 2011, a ten-year time period. Epidemiological studies with children and/or adolescents published in English, Portuguese or Spanish and fully available online were included. The searches were performed in Science Direct, PubMed/Medline, BVS (Biblioteca Virtual em Saúde) and Cochrane Library databases, using the following combination of key-words: "lipoprotein a" and "cardiovascular diseases" and "obesity". DATA SYNTHESIS: Overall, 672 studies were obtained but only seven were included. Some studies assessed the family history for CVD. In all of them, Lp(a) levels were increased in patients with family history for CVD. There was also a positive correlation between Lp(a) and LDL-cholesterol, total cholesterol, and apolipoprotein B levels, suggesting an association between Lp(a) levels and the lipid profile. CONCLUSIONS: The evidence that CVD may originate in childhood and adolescence leads to the need for investigating the risk factors during this period in order to propose earlier and possibly more effective interventions to reduce morbidity and mortality rates.
Prevalence of temporomandibular dysfunction in children and adolescents
Authors: Sena Marina Fernandes de , Mesquita Késsia Suênia F. de , Santos Fernanda Regina R. , Silva Francisco Wanderley G. P. , Serrano Kranya Victoria D.
Published: January 2014

OBJECTIVE: To review the prevalence of temporomandibular disorders (TMD) in children and adolescents, verifying the methodological variations. DATA SOURCES: Research conducted in Medline, PubMed, Lilacs and BBO databases, including manuscripts (except reviews and case reports) published from 1990 to 2012. The descriptors were "temporomandibular joint syndrome", "temporomandibular joint dysfunction syndrome", "temporomandibular joint disorders", "prevalence studies", and "cross-sectional studies"; the words "dysfunction", "disorder", "temporomandibular", "children", "adolescents", "prevalence", "frequency", and "transversal" were used. DATA SYNTHESIS: Seventeen articles were selected, and the TMD frequency varied from 16 to 68%. Regarding the methodological criteria, only three articles (18%) reported sample size determination, three (18%) clearly described the sample selection process by stratified selection technique, and nine studies (53%) carried out the calibration of the examiners. The diagnostic criteria used in the studies were: Helkimo index (n=2; 12%), Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) (n=4; 24%), the jaw index (n=1; 6%), clinical protocols (n=10; 59%), and anamnestic questionnaires (n=6; 35%). CONCLUSIONS: The TMD prevalence in children and adolescents varies in the literature. Appropriate and standardized methods are needed to identify, with greater validity, the presence of TMD in this population, allowing a better understanding of the pathological aspects in order to address more effective preventive and therapeutic procedures.
Interdisciplinaridade no PROEJA: uma proposta possível no caderno temático saúde e números
Authors: Miranda Paula Reis de , Gazire Eliane Scheid
Published: January 2014

A implantação do PROEJA na rede federal de Educação Profissional e Tecnológica fomentou a necessidade de investigar as possibilidades da construção de atividades experimentais e interdisciplinares para o curso de Agente Comunitário de Saúde, a fim de proporcionar ao estudante uma formação integral. Esse recorte faz parte da dissertação do Mestrado Profissional em Ensino de Ciências e Matemática da PUC- Minas, na qual foi produzido o caderno temático Saúde e Números. Uma das atividades do material foi aplicada com caráter exploratório-investigativo, descrita e analisada com o propósito de analisar a sua potencialidade e instrumentalizar o professor quanto às possibilidades investigativas, manipulativas e interdisciplinares de trabalho com a Matemática e a Química junto a jovens e adultos. Verificou-se que a potencialidade do material produzido, a receptividade dos jovens e adultos e as possibilidades de atividades experimentais na transposição de barreiras entre a teoria e prática.
Fora da ordem natural: a natureza nos discursos sobre a clonagem e a pesquisa com celulas-tronco em jornais brasileiros
Authors: Medeiros Flavia Natercia da Silva
Published: January 2014

Noções de natureza desempenham um papel na cobertura midiática e nas percepções do público sobre as biotecnologias. Neste estudo, fez-se uma análise de discurso das ideias de natureza e natural usadas na cobertura jornalística brasileira da clonagem e das células-tronco. Nos discursos oponentes, as técnicas biotecnológicas foram postas fora da ordem natural e consideradas imorais. Nos discursos defensores, apareceu uma natureza indiferente ou cruel para com o destino humano, ou obstáculo a ser superado; por outro lado, a clonagem e as células-tronco embrionárias foram naturalizadas, e a ovelha Dolly foi antropomorfizada. As representações mitificantes ou transcendentes da natureza não incidem somente sobre as percepções públicas, têm implicações éticas e políticas.
Controvérsia científica no telejornalismo brasileiro: um estudo sobre a cobertura das células-tronco no Jornal Nacional
Authors: Almeida Carla , DalCol Franciane Lovati , Massarani Luisa
Published: January 2014

Em 1998, pesquisas com células-tronco tornaram-se objeto de intensa controvérsia. No Brasil, a polêmica atingiu seu ápice em 2008, quando o Supremo Tribunal Federal iniciou julgamento de ação legal, questionando a nova Lei de Biossegurança por permitir o uso de embriões humanos em pesquisas. Analisa-se aqui a cobertura sobre as células-tronco embrionárias humanas realizada pelo Jornal Nacional . Observa-se tom positivo, marcado pela ênfase nos potenciais benefícios oferecidos pela pesquisa e omissão de limitações e riscos envolvidos. O pequeno índice de sucesso obtido até então como resultado de pesquisas com células-tronco embrionárias e os riscos de elas induzirem a formação de tumores foram omitidos, fazendo crer que a única barreira a novos tratamentos e curas era a legislação.
Analysis of pig iron desulfurization with mixtures from the CaO-Fluorspar and CaO-Sodalite system with the use of computational thermodynamics
Authors: Grillo Felipe Fardin , Sampaio Raphael de Alcantara , Viana José Flávio , Espinosa Denise Crocce Romano , Oliveira José Roberto de
Published: January 2014

This work aims at the use of computational thermodynamics in the study of desulfurization of pig iron through CaO-Fluorspar and CaO-Sodalite mixtures. Experiments were performed with the addition of different mixtures from these systems in molten pig iron at a temperature of 1,400ºC. The test results were analyzed and compared with those obtained by the computational thermodynamics software program THERMOCALC. Through this software, were calculated the equilibrium sulfur content in the metal, solid phases, and the amount of liquid in each desulfurizing mixture used in the process at a temperature of 1,400ºC. The computational thermodynamics proved to be an effective tool in predicting the desulfurization capacity of the mixtures.
Silicon refining by a metallurgical processing route
Authors: Ribeiro Tiago Ramos , Lima Moysés Leite de , Martorano Marcelo Aquino , Ferreira Neto João Batista
Published: January 2014

Directional solidification experiments were carried out in a Bridgman furnace to remove carbon and metallic impurities from silicon. For carbon removal, solidification was achieved by extracting the mold from the hot into the cold zone of the furnace, while for the removal of metallic impurities, solidification occurred by cooling the furnace with a motionless mold. In the experiments of carbon removal, a mold extraction rate of 5 µm/s results in an ingot with columnar grain structure aligned in the ingot axial direction and a macrosegregation of carbon and SiC particles to the ingot top regions. However, at a mold extraction rate of 80 µm/s, the grain structure consisted of columnar grains aligned in the radial direction and SiC particles were observed throughout the ingot, showing lower macrosegregation with a carbon concentration still larger at the ingot top. In the metallic impurities removal experiment, an ingot with a columnar grain structure aligned in the ingot axial direction was obtained and the concentration profiles showed significant metallic impurities macrosegregation to the ingot top.
Reescrita, dialogismo e etnografia
Authors: Fiad Raquel Salek
Published: January 2014

Com este texto, pretendo contribuir para as discussões sobre letramento acadêmico no contexto brasileiro, trazendo reflexões sobre a reescrita de textos, com base em uma perspectiva etnográfica e dialógica. Para isso, proponho uma articulação entre uma concepção dialógica da linguagem e uma perspectiva etnográfica de análise da escrita, possibilitando um acompanhamento longitudinal das escritas no contexto acadêmico através da análise dos textos e das interações em torno dos textos. Apoio-me no conceito de "história do texto" proposto por Lillis (2008) e ensaio uma análise de um texto bem como de comentários sobre esse texto produzidos por estudantes universitários brasileiros.
Teor de nitrogênio inorgânico no solo em função de plantas de cobertura, fontes de nitrogênio e inibidor de nitrificação
Authors: Moro Edemar , Crusciol Carlos Alexandre Costa , Nascente Adriano Stephan , Cantarella Heitor
Published: January 2014

A utilização de plantas de cobertura pode alterar a rela-ção NO3-:NH4+ no solo, proporcionando maiores quantidades de NH4+ e podendo viabilizar o desenvolvimento de culturas que absorvem mais e preferem esta forma de nitrogênio (N), como o arroz. Objetivou-se avaliar a influência da interação de plantas de cobertura e fontes de N, com e sem inibidor de nitrificação (dicianodiamida), em sistema plantio direto (SPD). O experimento foi realizado em 2009/2010, em Botucatu (SP), em Latossolo Vermelho distroférrico cultivado por seis anos no SPD. O delineamento experimental foi em blocos casualizados, em esquema de parcela subdividida, com quatro repetições. As parcelas foram constituídas por seis espécies de plantas de cobertura do solo (Urochloa brizantha, U. decumbens, U. humidicola, U. ruziziensis, Pennisetum americanum e Crotalaria spectabilis) e as subparcelas por sete formas de fertilização nitrogenada, aos 0 e 30 dias após a emergência (DAE) do arroz [1 - controle, sem aplicação de nitrogênio; 2 - nitrato de cálcio (40 + 40 kg ha-1); 3 - nitrato de cálcio (0 + 80 kg ha-1); 4 - sulfato de amônio (40 + 40 kg ha-1); 5 - sulfato de amônio (0 + 80 kg ha-1); 6 - sulfato de amônio + dicianodiamida (40 + 40 kg ha-1); e 7 - sulfato de amônio + dicianodiamida (0 + 80 kg ha-1)]. O uso do inibidor de nitrificação e o cultivo de C. spectabilis proporcionaram maiores teores de amônio no solo. A aplicação da fonte amoniacal sem inibidor em dose total aos 30 DAE e com inibidor tanto parcelada quanto em dose total proporcionaram os maiores teores de nitrato no solo.
Germinação de sementes de Urochloa ruziziensis em função da disponibilidade hídrica do substrato e teor de água das sementes
Authors: Masetto Tathiana Elisa , Ribeiro Dágon Manoel , Rezende Rodrigo Kelson Silva
Published: January 2014

O estresse hídrico e o grau de umidade das sementes podem afetar as primeiras fases da germinação e prejudicar o pleno estabelecimento de pastagens. Objetivou-se avaliar o efeito de potenciais hídricos do substrato e do teor de água das sementes, na germinação de sementes de Urochloa ruziziensis, e verificar a ocorrência de possíveis danos, por embebição, às sementes. Os tratamentos foram constituídos de sementes com teores de água de 9,5%; 11,3%; e 14,6%, submetidas aos seguintes potenciais hídricos no substrato, simulados com soluções aquosas de polietilenoglicol 6000 (PEG 6000): 0,0 MPa (PubMed controle); -0,1 MPa; -0,2 MPa; -0,3 MPa; e -0,4 MPa. As seguintes características foram utilizadas para avaliar o potencial fisiológico das sementes: percentagem e primeira contagem de germinação, comprimento da parte aérea e raiz e massa fresca das plântulas. Utilizou-se o delineamento inteiramente casualizado, com quatro repetições de 50 sementes. Todas as características avaliadas foram influenciadas negativamente pela redução nos potenciais hídricos, entretanto, as sementes de U. ruziziensis com teores de água de 11,3% e 14,6% apresentaram maior germinação e crescimento de plântulas, em condições de diminuição de disponibilidade hídrica. Apesar da redução nos índices avaliados com a deficiência hídrica, a extensão dos danos em sementes foi determinada pelo teor de água das sementes e pela severidade do estresse hídrico.
Executivos e smartphones: uma relação ambígua e paradoxal
Authors: Borges Ana Paula , Joia Luiz Antonio
Published: January 2014

Fundamentado em abordagens teóricas relativas à existência de paradoxos associados ao uso de artefatos tecnológicos, este artigo procura identificar a existência de paradoxos associados ao uso diário de smartphones pelos executivos brasileiros. O método de estudo de caso único foi aplicado analisando-se uma companhia brasileira atuante no setor farmacêutico, a qual tem por política fornecer smartphones a seus executivos seniores. Os dados foram coletados por meio de questionários desenvolvidos a partir dos paradoxos identificados na literatura, os quais foram respondidos por 14 executivos da companhia em questão, entrevistas em profundidade conduzidas com cinco desses executivos e análise de e-mails enviados pelos respondentes via smartphones por um dado período de tempo. Após a consolidação e análise dos dados obtidos verificou-se que dois paradoxos se mostraram fortemente associados ao uso de smartphones pelos executivos em questão, i.e. continuidade vs. assincronicidade e autonomia vs. vício. Além disso, três outros paradoxos se mostraram moderadamente associados ao uso de smartphones pelos executivos em questão, i.e. liberdade vs. escravidão, dependência vs. independência e planejamento vs. improvisação. Ao final, as implicações e limitações desta pesquisa são apresentadas.
Uma análise dos estudos sobre o feminino e as mulheres na área de administração: a produção científica brasileira entre 2000 a 2010
Authors: Souza Eloisio Moulin de , Corvino Márcia de Mello Fonseca , Lopes Beatriz Correia
Published: January 2014

Este artigo consiste em analisar bibliograficamente as produções científicas, publicadas entre os anos de 2000 a 2010, que tiveram como tema central o feminino e a mulher em seis das principais revistas da área de administração no Brasil. Os periódicos pesquisados foram: Cadernos EBAPE, Revista de Administração Contemporânea, Revista de Administração de Empresas, Revista de Administração Mackenzie, Revista Organizações & Sociedade e Revista de Administração da Universidade de São Paulo. Os mesmos foram agrupados em três áreas temáticas, seguindo-se os critérios de Análise de Conteúdo. Conclui-se que a maioria dos artigos analisados aproxima-se dos movimentos feministas liberais e radicais. Apenas um artigo tem proximidade com o pós-estruturalismo e o pós-colonialismo. Contudo, não se pode afirmar que os artigos são representantes ideais destas correntes. Por fim, há carência de pesquisas que relacionem o feminino com questões de classe e raça, bem como estudos que pesquisem feminino em homens.
Juventude e participação: o grêmio estudantil como espaço educativo
Authors: Martins Francisco André Silva , Dayrell Juarez Tarcísio
Published: January 2014

O presente trabalho tem como objetivo analisar a participação de jovens no cotidiano escolar através do grêmio estudantil de uma escola publica de Ensino Médio noturno, buscando compreender os possíveis significados e aprendizagens decorrentes desse tipo de participação para os estudantes envolvidos. As principais ferramentas metodológicas foram a observação participante e o desenvolvimento de entrevistas semiestruturadas. A análise dos dados revelou, dentre outros aspectos, que o grêmio se constitui como um importante espaço de socialização para os jovens alunos, com ênfase na aprendizagem da vivencia coletiva, no lidar com os conflitos e no exercício de escolhas, dentre outras.
Mouthwashes with hydrogen peroxide are carcinogenic, but are freely indicated on the internet: warn your patients!
Authors: Consolaro Alberto
Published: January 2014

It all began in Ancient Egypt where people used to bleach their teeth with antiseptic mouthwashes made of urea from human urine. Teeth harmony is promoted by expression of feelings, communication, a real window of the brain and its content! Tooth bleaching products are medicines, not cosmetics! Mouth washing with hydrogen peroxide is an illogical and dangerous procedure! Hydrogen peroxide must be used in one's mouth only when employed by a dentist who has been properly instructed to protect the mucosa, preventing it from receiving these products. How and for how long these products are going to be used require caution in order to avoid or decrease any adverse effects on the tissues. Many websites instruct people on how to purchase and prepare hydrogen peroxide so that it is used as an antiseptic mouthwash and tooth bleaching agent. Some websites even refer to dentists as "exploiters", accusing them of not instructing patients properly. In this article, we aim at providing evidence and information upon which dentists and assistants may base their thinking as well as their opinion and procedures regarding "the indiscriminate and free use of hydrogen peroxide in the mouth, on teeth and oral mucosa". Those websites, blogs and social network profiles trespass the limits of public trust and should be immediately sued by the government for committing a crime against public health.
Comparative cephalometric study of Class II malocclusion treatment with Pendulum and Jones jig appliances followed by fixed corrective orthodontics
Authors: Patel Mayara Paim , Henriques José Fernando Castanha , Almeida Renato Rodrigues de , Pinzan Arnaldo , Janson Guilherme , Freitas Marcos Roberto de
Published: January 2014

OBJECTIVE: The purpose of this study was to cephalometrically compare the skeletal and dentoalveolar effects in the treatment of Class II malocclusion with Pendulum and Jones jig appliances, followed by fixed corrective orthodontics, and to compare such effects to a control group. METHODS: The sample was divided into three groups. Group 1: 18 patients treated with Pendulum, Group 2: 25 patients treated with Jones jig, and Group 3: 19 young subjects with untreated Class II malocclusions and initial mean age of 12.88 years. The chi-square test was applied to assess severity and gender distribution. Groups 1 and 2 were compared to the control group by means of the one-way ANOVA and Tukey tests in order to differentiate treatment changes from those occurred by craniofacial growth. RESULTS: There were no significant changes among the three groups with regard to the components of the maxilla and the mandible, maxillomandibular relationship, cephalometric and tegumental pattern. Buccal tipping of mandibular incisors was significantly greater in the experimental groups and increased mesial angulation of the maxillary second molars was found in the Jones jig group. In the experimental groups, dental relationship, overbite and overjet were corrected. CONCLUSION: It can be stated that the distalization achieved its purpose of correcting the Class II.
Treatment of dental and skeletal bimaxillary protrusion in patient with Angle Class I malocclusion
Authors: Ramos Claudio José
Published: January 2014

In the orthodontic clinic, skeletal and dental bimaxillary protrusion is presented frequently as one of the factors leading patients to seek orthodontic treatment, mainly due to the esthetic involvement it has. The patient of this article illustrates this situation, being deeply uncomfortable with her esthetic appearance, due to the excessive upper incisors exposure and problems with lip sealing. This case was presented to the Brazilian Board of Orthodontics and Facial Orthopedics (BBO), as part of the requisites to become a BBO Diplomate.
Reconstruction of alveolar cleft with allogenous bone graft: clinical considerations
Authors: Silva Filho Omar Gabriel da , Ozawa Terumi Okada , Bachega Cláudia , Bachega Marco Aurélio
Published: January 2014

INTRODUCTION: Secondary bone grafting consists in a routine procedure on the treatment of patients with alveolar cleft. Usually, it is performed by the end of the mixed dentition, when the permanent canine is erupting, with autogenous cancellous bone from the iliac crest. OBJECTIVE: The present article discusses the alternative of autogenous bone grafting with allogeneic bone, obtained from human bone bank, illustrating the result with the presentation of a clinical case of left unilateral alveolar cleft.
Twenty years of electroconvulsive therapy in a psychiatric unit at a university general hospital
Authors: Santos Jr. Amilton dos , Oliveira Maitê Cruvinel , Andrade Tiago dos Santos , Freitas Rosana Ramos de , Banzato Cláudio Eduardo Muller , Azevedo Renata Cruz Soares de , Botega Neury José
Published: January 2014

Objective: To describe the sociodemographic and clinical profile of patients who underwent electroconvulsive therapy (ECT) at a university general hospital. Method: In this retrospective study, records from all patients undergoing ECT between January 1988 and January 2008 at the psychiatric unit of the general hospital of Universidade Estadual de Campinas (UNICAMP) were reviewed. Telephone contact was made with patients/relatives to collect follow-up data. Results: A total of 200 charts were reviewed. The majority of patients were women, with a mean age of 39 years, and history of psychiatric hospitalization. The main indications for ECT were depression and catatonia. Complications were observed in less than half of the cases, and most were temporary and not severe. There was a good psychiatric outcome for 89.7% of the patients, especially for catatonic patients (100%, p = 0.02). Thirty-four percent of the cases were later contacted by telephone calls, at a mean of 8.5 years between the procedure and the contact. Among these, three (1.5%) reported persistent memory disorders and 73% considered ECT a good treatment. Conclusion: ECT has been performed according to international guidelines. In the vast majority of cases, undesirable effects were temporary and not severe. Response to ECT was positive in most cases, particularly in catatonic patients.
Gender Disparities in HIV Treatment Outcomes Following Release From Jail: Results From a Multicenter Study
Authors: Meyer Jaimie P. , Zelenev Alexei , Wickersham Jeffrey A. , Williams Chyvette T. , Teixeira Paul A. , Altice Frederick L.
Published: January 2014

Objectives. We assessed gender differences in longitudinal HIV treatment outcomes among HIV-infected jail detainees transitioning to the community.

Methods. Data were from the largest multisite prospective cohort study of HIV-infected released jail detainees (n = 1270)—the Enhancing Linkages to HIV Primary Care and Services in Jail Setting Initiative, January 2008 and March 2011, which had 10 sites in 9 states. We assessed baseline and 6-month HIV treatment outcomes, stratifying by gender.

Results. Of 867 evaluable participants, 277 (31.9%) were women. Compared with men, women were more likely to be younger, non-Hispanic White, married, homeless, and depressed, but were similar in recent alcohol and heroin use. By 6 months postrelease, women were significantly less likely than men to experience optimal HIV treatment outcomes, including (1) retention in care (50% vs 63%), (2) antiretroviral therapy prescription (39% vs 58%) or optimal antiretroviral therapy adherence (28% vs 44%), and (3) viral suppression (18% vs 30%). In multiple logistic regression models, women were half as likely as men to achieve viral suppression.

Conclusions. HIV-infected women transitioning from jail experience greater comorbidity and worse HIV treatment outcomes than men. Future interventions that transition people from jail to community-based HIV clinical care should be gender-specific.
Medicaid Policies and Practices in US State Prison Systems
Authors: Rosen David L. , Dumont Dora M. , Cislo Andrew M. , Brockmann Bradley W. , Traver Amy , Rich Josiah D.
Published: January 2014

Medicaid is an important source of health care coverage for prison-involved populations. From 2011 to 2012, we surveyed state prison system (SPS) policies affecting Medicaid enrollment during incarceration and upon release; 42 of 50 SPSs participated.

Upon incarceration, Medicaid benefits were suspended in 9 (21.4%) SPSs and terminated in 28 (66.7%); 27 (64.3%) SPSs screened prisoners for potential Medicaid eligibility.

Although many states supported Medicaid enrollment upon release, several did not. We have considered implications for Medicaid expansion.