B. Tucker Woodson, Pamela R. Hanson, Michael B. Melugin, Armando A. Gama,
... for more papers by this authorDr Armando A. Gama DDS, Dr Armando A. Gama DDS Department of Oral and Maxillofacial ... for more papers by this authorDr Armando A. Gama DDS, Dr Armando A. Gama DDS Department of Oral and Maxillofacial Surgery, Medical ...
Tópico(s): Cleft Lip and Palate Research
2003 - Wiley | Otolaryngology
Produção Nacional
Revisado por pares
David Gonçalves, Tiago Cousseau, André Gama, Armando Campos, J. Seabra,
In this work a series of experimental tests were performed with cylindrical thrust roller bearings (TRB) lubricated with grease. The tested greases were formulated with base oils of different grades and/or nature but also different thickener types.t The friction torque was measured under constant load, while varying the rotational speed, at different operating temperatures. The SKF's rolling bearings friction torque model was optimized to the experimental measurements by calculating the coefficients ...
Tópico(s): Tribology and Wear Analysis
2016 - Elsevier BV | Tribology International
Produção Nacional
Revisado por pares
Rodrigo Brasil Choueri, Maria da Graça Gama Melão, Ana Teresa Lombardi, Armando Augusto Henriques Vieira,
The objective of the present investigation was to verify if Anabaena spiroides exopolysaccharides sustains growth and reproduction of Ceriodaphnia cornuta. The animals were raised in controlled laboratory conditions and fed exclusively on A. spiroides exopolysaccharides, which were obtained from filtered stationary growth phase A. spiroides cultures. A molecular weight cut-off of 12-14 kDa was used to separate the exopolysaccharides from low molecular weight materials. The lyophilized exopolysaccharides ...
Tópico(s): Diatoms and Algae Research
2007 - Oxford University Press | Journal of Plankton Research
Produção Nacional
Revisado por pares
Patricia F. M. Nogueira, Maria da Graça Gama Melão, Ana Teresa Lombardi, Armando Augusto Henriques Vieira,
Summary 1. This work investigated the consumption of a microalgal ( Anabaena spiroides ) exopolysaccharide by the cladoceran Simocephalus serrulatus (Cladocera, Daphnidae) and its effect on copper toxicity. 2. Total organic carbon concentration was used to quantify the microalgal exopolysaccharide. Both copper‐complexed exopolysaccharides and copper‐free exopolysaccharides were taken up by S. serrulatus . 3. A reduction of free copper ions was obtained in the presence of A. spiroides exopolysaccharide. ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2005 - Wiley | Freshwater Biology
Paula S. S. Lacerda, Nuno Gama, Carmen S. R. Freire, Armando J. D. Silvestre, Ana Barros‐Timmons,
Cork is a unique material and its by-products are attracting an ever-growing interest for preparing new materials in an attempt to extend the outstanding properties of cork toward innovative and high value applications. Yet, the miscibility of cork particles with thermoplastic matrices is not easy due to its low density and surface properties. Here, cork is functionalized with poly(methyl methacrylate) (PMMA) via atom transfer radical polymerization (ATRP) to yield cork grafted with PMMA chains particles ( ...
Tópico(s): Electrospun Nanofibers in Biomedical Applications
2020 - Multidisciplinary Digital Publishing Institute | Polymers
Produção Nacional
Revisado por pares
Rodrigo Brasil Choueri, Paloma Kachel Gusso‐Choueri, Maria da Graça Gama Melão, Ana Teresa Lombardi, Armando Augusto Henriques Vieira,
Many studies have shown the reduction of metal toxicity in the presence of dissolved organic matter in natural waters; however, possible roles of metal-edible dissolved organic matter complexes as a vehicle of metal entrance into trophic chains have been poorly investigated. In this study copper uptake and toxicity to Ceriodaphnia cornuta Sars in the presence and absence of exudates produced by Anabaena spiroides Klebahn were investigated. Groups of 30 adult C. cornuta individuals were exposed to ...
Tópico(s): Heavy metals in environment
2009 - Oxford University Press | Journal of Plankton Research
Produção Nacional
Revisado por pares
Robson Miranda da Gama, Marcelo Guimarães, Luíz Carlos de Abreu, José Armando-Junior,
To evaluate the antioxidant activity of extracts of dried flowers of Tithonia diversifolia (Hemsl) A. Gray (T. diversifolia) dry flower-a shrubby plant belonging to the Asteraceae family and very common in Brazil, providing data to help prevent premature aging skin. The tests of phytochemical screening included total phenols, tannins, flavonoids, alkaloids and saponins. The active antioxidant was determined by 2,2-diphenyl-1-picryl-hydrazyl method. The phytochemical screening of T. diversifolia dry ...
Tópico(s): Bee Products Chemical Analysis
2014 - Medknow | Asian Pacific Journal of Tropical Biomedicine
Produção Nacional
Armando Lírio de Souza, Lucia Cristina Gama de Andrade,
Tópico(s): Rural Development and Agriculture
2009 - UNIVERSIDADE FEDERAL DO PARÁ | Novos Cadernos NAEA
C. Flores-Gama, Maribel Merino, Francisco Morales Baranda, Dinna N. Cruz, Claudio Ronco, Armando Vázquez-Rangel,
<b><i>Background/Aims:</i></b> We evaluated the potential preventive effect of Nephrology On-Site (i.e. nephrologists integrated into the postoperative cardiac intensive care unit, ICU, team) versus Nephrology On-Demand (i.e. nephrology consultation depending on intensivist criteria) in the ICU on in-hospital outcomes. <b><i>Methods:</i></b> This was a retrospective cohort study comparing outcomes during 2 consecutive time periods: from March 1, 2009 to ...
Tópico(s): Cardiac Arrest and Resuscitation
2013 - Karger Publishers | Cardiorenal Medicine
Karel Blondeel, Sónia Dias, Martina Furegato, Armando Seuc, Ana Gama, Ricardo Fuertes, Luís Mendão, Marleen Temmerman, Igor Toskin,
Objectives Portugal has the highest HIV incidence rate in Western Europe. The proportion assigned to sexual contact between men recently increased to more than 30% of all HIV infections. Men who have sex with men (MSM) are vulnerable to the acquisition of other sexually transmitted infections (STIs), increasing the per-contact risk of HIV infection. Building on syndemic theory, the aim of this analysis was to identify patterns of current sexual behaviour in MSM, and explore their relationship with ...
Tópico(s): HIV, Drug Use, Sexual Risk
2021 - BMJ | BMJ Open
Armando Lucumí, Sara M. Robledo, Vivian Gama, Nancy Gore Saravia,
ABSTRACT The emergence of Leishmania less sensitive to pentavalent antimonial agents (SbVs), the report of inhibition of purified topoisomerase I of Leishmania donovani by sodium stibogluconate (Pentostam), and the uncertain mechanism of action of antimonial drugs prompted an evaluation of SbVs in the stabilization of cleavable complexes in promastigotes of Leishmania ( Viannia ). The effect of camptothecin, an inhibitor of topoisomerase, and additive-free meglumine antimoniate (Glucantime) on the stabilization ...
Tópico(s): Cancer therapeutics and mechanisms
1998 - American Society for Microbiology | Antimicrobial Agents and Chemotherapy
Produção Nacional
Revisado por pares
Enrico Rogatto Rovetta, Mara Angelina Galvão Magenta, Thaís Moura Gascón, Fernando Luiz Affonso Fonseca, Robson Miranda da Gama, José Armando, Horácio Dorigan Moya,
... Gascon, Fernando Luiz Affonso Fonseca, Robson Miranda da Gama, José Armando Jr, and Horácio Dorigan Moya Author(s) affiliations: ...
Tópico(s): Microbial Metabolism and Applications
2021 - Medknow | Pharmacognosy Research
Produção Nacional
Revisado por pares
Patricia F. M. Nogueira, Maria da Graça Gama Melão, Ana Teresa Lombardi, M. M. Nogueira, Armando Augusto Henriques Vieira,
The influence of Anabaena spiroides exopolysaccharides (EPS) on copper speciation (total dissolved, particulate and free Cu2+ ions) and bioavailability in aquatic organisms was investigated. Bacteria were used as the first trophic level, Paramecium caudatum (protozoan) as the second and the copepod cyclopoid Metacyclops mendocinus as the third level. The organisms were obtained from a freshwater reservoir and held under continuous laboratory controlled conditions. Freshwater media containing EPS excreted ...
Tópico(s): Water Quality and Pollution Assessment
2009 - Elsevier BV | Aquatic Toxicology
Produção Nacional
Armando Eduardo, Jo�ão Maurício Gama Boaventura, Emanuela Todeva, Cristina Espinheira Costa Pereira,
Clusters have been studied linking their performance to the historical and geographical context, as well as to the drivers that shape the competitive strength of the nations. Among these drivers, the human factor and the university have a key role in the competitiveness of nations, as well of industries, regions and firms. In the new knowledge economy, the Triple Helix model is a mechanism of coordination that brings together government, industry and universities. The main objective of this paper ...
Tópico(s): Business Strategy and Innovation
2017 - ESCOLA SUPERIOR DE PROPAGANDA E MARKETING | Internext
Produção Nacional
Revisado por pares
Dênis Pajecki, Bruno Zilberstein, Manoel Armando Azevedo dos Santos, Alina Guimarães Quintanilha, Ivan Cecconello, Joaquim Gama‐Rodrigues,
INTRODUÇÃO: O risco de desenvolvimento de carcinoma esofágico em portadores de megaesôfago é 33 vezes superior ao da população em geral. Possível explicação para este fenômeno poderia estar relacionada à produção de compostos N-nitrosos na luz do órgão, a partir da transformação de nitratos da dieta em nitritos, mediada por bactérias em suspensão no líquido de estase e com o contato crônico destes carcinógenos com a mucosa esofágica. OBJETIVO: Analisar a microbiota esofágica em pacientes portadores ...
Tópico(s): Gastroesophageal reflux and treatments
2003 - Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia (IBEPEGE) | Arquivos de Gastroenterologia
Produção Nacional
Filipe Tanelli, Thaís Gascón Belardo, Carlos Henrique Foncesca Peiró, Robson Miranda da Gama, Fernando Luiz Affonso Fonseca, José Armando-Junior,
The objective of this study was to evaluate the effect of aqueous extracts of Plinia cauliflora (DC.)Kausel leaves in different concentrations (0.5 to 10.0% (w/v)), on the hemostasis through changes in platelet aggregation and blood coagulation.Has been assessed by phytochemical screening (total phenols; tannins; flavonoids; alkaloids and saponins) of Plinia cauliflora (DC.)Kausel leaves using standard methodologies.The human blood by discard sample was used.The coagulation assay was carried out with ' ...
Tópico(s): Psidium guajava Extracts and Applications
2017 - Open Science Publishers LLP | Journal of Applied Pharmaceutical Science
Produção Nacional
Revisado por pares
Carlos Eduardo de Oliveira Camargo, Antônio Wilson Penteado Ferreira Filho, Augusto Tulmann Neto, Armando Pettinelli, Jairo Lopes de Castro, João Carlos Felício, Júlio César Mistro, Marcus Vinicius Salomon,
O emprego da técnica de indução de mutação associada à hibridação tem contribuído para a obtenção de novos genótipos de trigo com características agronômicas desejáveis. Avaliaram-se 18 linhagens de trigo, sendo dez oriundas de seleção de plantas do híbrido Kauz "S"x IAC-24 que tiveram as sementes, em geração F2, irradiadas (I) com raios gama e oito não irradiadas (NI), além das cultivares IAC-24 e IAC-289, em seis experimentos instalados no período 1997-99. Foram analisadas a produção de grãos, a ...
Tópico(s): Silicon Effects in Agriculture
2005 - INSTITUTO AGRONÔMICO DE CAMPINAS | Bragantia
Julia Pérez Pérez, Emily McClung de Tapia, Luis Barba Pingarrón, Jorge E. Gama Castro, Armando Peralta Higuera,
Domestic agricultural terrace systems located in the basin of Mexico were the basis of prehispanic economic specialization and also the most widespread form of intensive cultivation in piedmont areas.This paper focuses on the remote sensing detection and field testing of potential scenarios to recover evidence of these prehispanic features.The testing area of this article is located in the piedmont of cerro San Lucas, Teotihuacan Valley, Mexico.The site was selected after consulting historical and ...
Tópico(s): Remote-Sensing Image Classification
2012 - Sociedad Geológica Mexicana | Boletín de la Sociedad Geológica Mexicana
Produção Nacional
Revisado por pares
Jo�ão Maurício Gama Boaventura, Adriano Augusto Costa Carnaúba, Emanuela Todeva, Ana Cláudia Azevedo, Armando Eduardo,
Abstract The present study aimed at verifying how different modes of governance structure are linked to different levels of inter-organisational trust. Its theoretical grounding involves Transaction Cost Theory, which studies governance of inter-organisational arrangements and research on trust in the business field. A descriptive and quantitative approach has been adopted to describe the relation between trust amongst business network participants and the mode of governance adopted by the surveyed ...
Tópico(s): Innovation and Knowledge Management
2016 - Cambridge University Press | Journal on Chain and Network Science
Produção Nacional
Revisado por pares
Fernanda Arriel Pedrozo Rezende, Anna Luiza De Aveiro Ruocco, Bruno Batista da Silva, Robson Miranda da Gama, J L Pombeiro Armando, Marcelo Guimarães,
Nanoparticles are systems formed by biodegradable, synthetic or natural polymers, that have gained significant importance in different industry segments, as well as being the highlight of essential researches. These tiny particles present various promising characteristics, such as: site-specific and gradual drug release and improvement of active principle solubility and stability. The combination of nanotechnology with medicinal plants could be able to enhance the action of plant extracts, such ...
Tópico(s): Phytochemistry and Bioactivity Studies
2020 - | Brazilian Journal of Natural Sciences
Produção Nacional
Revisado por pares
Carlos Eduardo de Oliveira Camargo, Augusto Tulmann Neto, Antônio Wilson Penteado Ferreira Filho, J.C. FELÍCI, J.L. de Castro, Armando Pettinelli,
Compararam-se dezesseis linhagens mutantes tolerantes à toxicidade de alumínio em solução nutritiva, uma linhagem mutante sensível e os cultivares Anahuac, IAC-60 e IAC-24, de trigo. As linhagens mutantes foram originárias de seleções realizadas em populações do cultivar Anahuac (sensível ao Al3+) cujas sementes foram submetidas ao tratamento de irradiação gama com as doses de 260 e 310 Gy. As comparações foram realizadas em dois locais através de seis experimentos em épocas diferentes, analisando- ...
Tópico(s): Aluminum toxicity and tolerance in plants and animals
1997 - UNIVERSIDADE DE SÃO PAULO | Scientia Agricola
Simona Stolnicu, Georgia Karpathiou, Esther Guerra, Claudia Mateoiu, Armando Reques, Ángel García, Joost Bart, Ana Félix, Daniela Fanni, João Martins Gama, David Hardisson, Jennifer A. Bennett, Carlos Parra‐Herran, Esther Oliva, Nadeem R. Abu‐Rustum, Robert A. Soslow, Kay J. Park,
Cervical clear cell carcinoma (CCC) is a rare human papillomavirus–independent adenocarcinoma. While recent studies have focused on gastric-type endocervical adenocarcinoma (GTA), little is known about CCC. A total of 58 (CCCs) were collected from 14 international institutions and retrospectively analyzed using univariable and multivariable methods and compared with 36 gastric-type adenocarcinomas and 173 human papillomavirus–associated (HPVA) endocervical adenocarcinoma (ECA) regarding overall survival ( ...
Tópico(s): Metastasis and carcinoma case studies
2022 - Lippincott Williams & Wilkins | The American Journal of Surgical Pathology
Produção Nacional
Revisado por pares
Carlos Eduardo de Oliveira Camargo, João Carlos Felício, Augusto Tulmann Neto, Antônio Wilson Penteado Ferreira Filho, Armando Pettinelli, Jairo Lopes de Castro,
Compararam-se 23 linhagens provindas de seleções em população submetida à irradiação gama (27,5 krad), em geração F4, do cruzamento interespecífico entre 'BH-1146' (Triticum aestivum L.) e 'Anhinga' "S" x Winged "S" (Triticum durum L.) e os cultivares BH-1146 e Yavaros "S" (T. durum L.) em nove ensaios, denominados "Novas variedades III", instalados em condições de irrigação por aspersão e de sequeiro, analisando-se a produção de grãos, outros componentes da produção e resistência às doenças. Em condição ...
Tópico(s): Genetics and Plant Breeding
1995 - INSTITUTO AGRONÔMICO DE CAMPINAS | Bragantia
Produção Nacional
Revisado por pares
Keila S. C. Lima, Antônio Luís dos Santos Lima, Rosa Helena Luchese, R. L. O. Godoy, Armando U. O. Sabaa‐Srur,
As cenouras são as principais fontes de origem vegetal em carotenóides provitamínicos A (a e o b-caroteno) e podem ser transformados em vitamina A dentro do organismo animal. Segundo a Pesquisa de Orçamento Familiar realizada na região Sudeste do Brasil, no grupo de raízes e tubérculos, a cenoura é amplamente consumida. As cenouras minimamente processadas foram acondicionadas em embalagens com atmosferas modificadas de 5% O2/10% CO2 e 21% O2 (ar sintético), e tratadas com radiação ionizante gama, ...
Tópico(s): Antioxidant Activity and Oxidative Stress
2003 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology
Produção Nacional
Armando Cirilo de Souza, Aline Cardoso Da Silva, Jesualdo Luiz Rossi, Francisco Carlos Cione,
A fabricação dos geradores de Mo-99mTc para os hospitais, requer a necessidade do transporte do insumo Mo-99m em recipientes com propriedades físico-químicas para a blindagem da radiação gama [4, 5]. A aplicação de ligas de tungstênio vem sendo desenvolvidas com o objetivo de minimizar os efeitos da radiação, sendo desta forma utilizada na fabricação de dispositivos para transporte de material radioativo, considerando suas propriedades de massa específica (60% mais denso que o chumbo), resistência ...
Tópico(s): Recycling and Waste Management Techniques
2017 - | Blucher Physics Proceedings
Produção Nacional
Revisado por pares
Jo�ão Maurício Gama Boaventura, Luis Guilherme Paulon Fontes, Greici Sarturi, Armando Eduardo,
É notória a integração da Teoria dos Stakeholders à área de Estratégia Empresarial, evidência explícita é o título da obra seminal desta teoria, a de Freeman (1984): Strategic Management - a stakeholder approach. Desde então, o campo de Stakeholder Strategy evoluiu consideravelmente em termos conceituais e instrumentais. Vários modelos foram desenvolvidos, entre eles o modelo de saliência de stakeholders proposto por Mitchell et al. (1997). Esta pesquisa contribui para o campo de Stakeholder Strategy ...
Tópico(s): Business and Management Studies
2017 - Institute of Management Foundation | Future Studies Research Journal Trends and Strategies
Produção Nacional
Revisado por pares
C.E.O. Camargo, Augusto Tulmann Neto, Antônio Wilson Penteado Ferreira Filho, José Guilherme de Freitas, Armando Pettinelli, J.L. de Castro,
Foram comparadas entre si e com dois controles vinte e três linhagens hexaplóides originárias de seleções realizadas em população submetida à radiação gama (27,5 krad), em geração F4, do cruzamento interespecífico entre BH-1146 (Triticum aestivum L.) e Anhinga "S" x Winged "S" (T. durum L.). Em nove ensaios em condições de irrigação e de sequeiro, analisou-se uma série de características agronômicas. Em laboratório efetuaram-se estudos da tolerância ao alumínio. As linhagens 11 e 19 de porte médio, com ...
Tópico(s): Plant Micronutrient Interactions and Effects
1995 - UNIVERSIDADE DE SÃO PAULO | Scientia Agricola
Armando Reyna Ballesteros, Luis Antonio Gama Moreno,
In this paper a Embedded File Manager for Mobile Devices (EFMMD) implementation based on RMS (Record Management System) of J2ME (Java 2 Micro Edition) is presented. EFMMD is focused on CLDC-MIDP (Connected Limited Device Configuration- Mobile Information Device Profile) application developers for PDA (Personal Digital Assistant) devices. RMS stores data using record collections called recordstores. Each recordstore is composed by a variable size array of bytes and a unique sequential identifier called ...
Tópico(s): Parallel Computing and Optimization Techniques
2007 - Institute of Electrical and Electronics Engineers | IEEE Latin America Transactions
Produção Nacional
Revisado por pares
Keila S. C. Lima, Jorge L. S. GROSSI, Antônio Luís dos Santos Lima, Paulo F. M. P. ALVES, Regina Celi Cavestré Coneglian, R. L. O. Godoy, Armando U. O. Sabaa‐Srur,
O trabalho foi desenvolvido com o objetivo de avaliar o efeito da irradiação gamasobre as características físicas e químicas pós-colheita da cenoura da cultivar Nantes. Segundo a Pesquisa de Orçamento Familiar (POF, 1991) realizada na região Sudeste do Brasil, no grupo de raízes e tubérculos, a cenoura é amplamente consumida. Sabe-se, ainda que, a cenoura representa uma das melhores fontes de carotenóides provitamínicos A (alfa e beta caroteno) na dieta. As cenouras foram tratadas com a irradiação ...
Tópico(s): Postharvest Quality and Shelf Life Management
2001 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology
Armando Peláez Acero, M. Meneses Mayo, Luis Alberto Romero, María Dolores Megías Rivas, Ricardo Bárcena Gama, Octavio Loera,
In this study the effect of Pleurotus sapidus used in sugar cane in solid state fermentation and then after 24 d of silage, was evaluated in nutrition quality, fermentation and ruminal digestibility. Whole sugar cane (CAI) was initially aerobically fermented for 48 h (CIF), and then used as a substrate inoculated with Pleurotus sapidus and additionally fermented for 15 d (FSP15). Different mixtures were prepared with CAI and two amounts (10 and 20%) of FSP15, so three treatments were considered: CAI+ ...
Tópico(s): Natural Products and Biological Research
2008 - University of Córdoba | Archivos de Zootecnia