Produção Nacional
Revisado por pares
Antônio Carlos Sant’Ana, Paulo Sérgio da Silva Santos, Márcia L. A. Temperini,
In situ surface-enhanced Raman spectroscopy (SERS) was used to monitor the electrochemical behavior of squaric acid on a gold electrode in aqueous solution, at different pH values. Octahydroxycyclobutane and other intermediates were identified. The formation of the squarate radical anion is suggested. The relative intensities of the bands in the SER spectra, together with the surface selection rules, suggest that different adsorption geometries of squaric acid and its deprotonated species are involved. ...
Tópico(s): Electrochemical sensors and biosensors
2004 - Elsevier BV | Journal of Electroanalytical Chemistry
Produção Nacional
Revisado por pares
Helena Maria Pinheiro-Sant’Ana, Paulo César Stringheta, Sebastião César Cardoso Brandão, Héctor Hernando PÁEZ, Valéria Maria Vitarelli de QUEIRÓZ,
This study aims to analyze the influence of dehydration and different preparation methods during home processing related toalpha-carotene, beta-carotene and total carotenoids stability in carrots. Vitamin A values were evaluated after different treatments. Thus, carrots were submitted to steam cooking, water cooking with and without pressure, moist/dry cooking and conventional dehydration. Determination of alpha- and beta-carotenes was made by High-Performance Liquid Chromatography (HPLC) (conditions ...
Tópico(s): Antioxidant Activity and Oxidative Stress
1998 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology
Produção Nacional
Revisado por pares
Helena Maria Pinheiro Sant’Ana, Paulo César Stringheta, Sebastião César Cardoso Brandão, Raquel Monteiro Cordeiro de Azeredo,
The objective of this work was to study the influence of different methods of food preparation routinely used by catering and food services (in large quantities) on the stability of α-carotene, β-carotene and total carotenoids in carrots. Also, the values of vitamin A were evaluated. The methods of preparation studied were: raw shredded, steam cooking, water cooking with pressure, water cooking without pressure and moist/dry cooking. The quantification of α and β-carotenes was carried out by high- ...
Tópico(s): Antioxidant Activity and Oxidative Stress
1998 - Elsevier BV | Food Chemistry
Produção Nacional
Revisado por pares
Flávia Milagres Campos, Sônia Machado Rocha Ribeiro, Ceres Mattos Della Lúcia, Helena Maria Pinheiro-Sant'Ana, Paulo César Stringheta,
In this study, different solutions to extract vitamin C were tested. High-performance liquid chromatography was chosen and the conditions were based on isocratic elution in reverse phase column. Dehydroascorbic acid was determined indirectly after its reduction using dithiothreitol. The use of metaphosphoric acid to stabilize the vitamin C was shown to be required and it was necessary to neutralize the pH of the extract to apply dithiothreitol. The average recovery was 90% in collard and tomato ...
Tópico(s): Potato Plant Research
2009 - Brazilian Chemical Society | Química Nova
Produção Nacional
Revisado por pares
... for robbery or homicide in the Penitentiary of Sant'Ana, São Paulo State, Brazil. Mainly self‐report assessments of alcohol ...
Tópico(s): HIV, Drug Use, Sexual Risk
2013 - Wiley | Criminal Behaviour and Mental Health
Produção Nacional
Revisado por pares
David Queiroz de Sant’Ana, Paulo Henrique Trombetta Zannin,
Tópico(s): Acoustic Wave Phenomena Research
2010 - Elsevier BV | Building and Environment
Produção Nacional
Revisado por pares
Arn Migowski, Gulnar Azevedo e Silva, Maria Beatriz Kneipp Dias, Maria Del Pilar Estevez Diz, Denise Rangel Sant’Ana, Paulo Nadanovsky,
Resumo: O câncer de mama é a principal causa de morte por câncer em mulheres no Brasil. As novas diretrizes para detecção precoce no Brasil foram elaboradas com base em revisões sistemáticas da literatura sobre riscos e possíveis benefícios de diversas estratégias de detecção precoce. O objetivo do presente artigo é apresentar as recomendações e atualizar a síntese de evidências, discutindo as principais controvérsias existentes. As recomendações para o rastreamento do câncer de mama (mulheres assintomáticas) ...
Tópico(s): Cancer Risks and Factors
2018 - Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz | Cadernos de Saúde Pública
Produção Nacional
Revisado por pares
Vitor de Toledo Stuani, Cássia Maria Fischer Rubira, Adriana Campos Passanezi Sant’Ana, Paulo Sérgio da Silva Santos,
Background The oral squamous cell carcinoma (OSCC) survival rate is influenced by the fact that diagnoses occur mostly in late stages of the disease. Thus, there is a clear contribution in the early findings, making the use of minimally invasive techniques for diagnosis, such as analysis of salivary markers, interesting tools. Methods A systematic review was performed with all studies that establish a comparison between the levels of saliva-based markers found in patients with OSCC compared with ...
Tópico(s): Salivary Gland Disorders and Functions
2016 - Wiley | Head & Neck
Produção Nacional
Revisado por pares
Tomás Dias Sant’Ana, Paulo Henrique de Souza Bermejo, Marina Figueiredo Moreira, Wagner Vilas Boas de Souza,
Purpose The concept of an innovation ecosystem, based on the idea of business ecosystem, has increasingly grown in the literature on strategy, innovation, and entrepreneurship. However, not all innovation ecosystems have the same architectural models or internal collaboration, and existing research rarely deconstructs an ecosystem of innovation and examines its structure. The objective of this article is to systematize the discussion about the structure of an innovation ecosystem and offer a foundation ...
Tópico(s): Innovation and Knowledge Management
2020 - Emerald Publishing Limited | Management Decision
... e racial no Brasil (1917-1945). Trad. Claudia Sant’Ana Martins. Sao Paulo: Editora Unesp, 2006. 400p. Por que estudar as ...
Tópico(s): Rural and Ethnic Education
2008 - UNIVERSIDADE EST.PAULISTA JÚLIO DE MESQUITA FILHO | História (São Paulo)
Produção Nacional
Revisado por pares
Adriana P. Gerola, Tayana Mazin Tsubone, Amanda Marília da Silva Sant’Ana, Hueder Paulo Moisés de Oliveira, Noboru Hioka, Wilker Caetano,
Chlorophyll (Mg-Chl) and its derivatives, zinc chlorophyll (Zn-Chl), copper chlorophyll (Cu-Chl), pheophytin (Pheo), pheophorbide (Pheid), and zinc chlorophyllide (Zn-Chld), were studied as to their acid–base equilibrium properties, hydrophobicity, stability, binding, and relative localization in neutral surfactant micellar systems. The stability order of metalochlorophyll (pHM) in acidic medium was found to be Cu-Chl > Zn-Chld > Zn-Chl > Mg-Chl. The apparent pKa for protonation of porphyrin ring nitrogens was ...
Tópico(s): Protein Interaction Studies and Fluorescence Analysis
2011 - American Chemical Society | The Journal of Physical Chemistry B
Produção Nacional
Revisado por pares
Adriana de Melo Nunes, Danilo Antônio Baltieri,
... a sentence for homicide in the Penitentiary of Sant'Ana in São Paulo State, Brazil. Latent class analysis was used to ...
Tópico(s): Psychopathy, Forensic Psychiatry, Sexual Offending
2012 - SAGE Publishing | Substance Abuse
Produção Nacional
Revisado por pares
Elaine Duarte Artuso de Mello, Rogério Miranda Pagnoncelli, Egberto Munin, Manoel Sant’Ana Filho, Guilherme Paulo Scarpel de Mello, Emília Ângela Lo Schiavo Arisawa, Marília Gerhardt de Oliveira,
Tópico(s): Dental Implant Techniques and Outcomes
2007 - Springer Science+Business Media | Lasers in Medical Science
Produção Nacional
Revisado por pares
Enrico Ghizoni, João Paulo Sant Ana Santos de Souza, Cássio Eduardo Raposo-Amaral, Rafael Denadai, Humberto Belém de Aquino, Cesar Augusto Raposo‐Amaral, Andrei Fernandes Joaquim, Hélder Tedeschi, Luís Fernando Bernardes, André Luiz Jardini,
Craniosynostosis is a complex disease once it involves deep anatomic perception, and a minor mistake during surgery can be fatal. The objective of this report is to present novel 3-dimensional–printed polyamide craniosynostosis models that can improve the understanding and treatment complex pathologies. The software InVesalius was used for segmentation of the anatomy image (from 3 patients between 6 and 9 months old). Afterward, the file was transferred to a 3-dimensional printing system and, with ...
Tópico(s): Surgical Simulation and Training
2017 - Elsevier BV | World Neurosurgery
João Paulo Sant Ana Santos de Souza, Jeffrey P. Mullin, Connor Wathen, Juan Bulacio, Patrick Chauvel, Lara Jehi, Jorge González-Martínez,
Tópico(s): Epilepsy research and treatment
2017 - Springer Science+Business Media | Neurosurgical Review
Produção Nacional
Revisado por pares
Tássia Santos Rodrigues, Ricardo Souza Evangelista Sant’Ana, João Paulo Zerbinati, Lucas Nascimento Souza, Anderson Reis de Sousa, Christine Maheu, Simone de Godoy,
Abstract Background When individuals in the SGM group are diagnosed with cancer and undergo treatment, they experience changes in physical, mental, sexual and spiritual dimensions, which can negatively impact sexual desire, as well as satisfaction and sexual health as a whole. This study aims to examine the existing scientific literature on how healthcare professionals approach sexuality in cancer patients who belong to the SGM group. The SGM group is particularly vulnerable, and the challenges ...
Tópico(s): Family Support in Illness
2023 - BioMed Central | BMC Public Health
Produção Nacional
Revisado por pares
Rodrigo Sant’Ana, Paulo Ricardo Pezzuto,
El cangrejo-rojo Chaceon notialis corresponde a una de las tres especies de cangrejos de profundidad que actualmente se explotan en Brasil. La pesca de cangrejo-rojo comenzo en el ano 1998 por barcos extranjeros que, desde 2000 fueron intensamente vigilados por observadores y rastreados por satelites. En el ano de 2005 se implemento un plan de manejo, considerando solamente el estudio de la dinamica de la biomasa del recurso, ya que el conocimiento biologico todavia era limitado. A partir de muestras ...
Tópico(s): Aquaculture Nutrition and Growth
2009 - Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso | Latin American Journal of Aquatic Research
Produção Nacional
Revisado por pares
Rogério Elias Rabelo, Fabiano José Ferreira de Sant’Ana, Neusa Margarida Paulo, Alana Flávia Romani, Luiz Antônio Franco da Silva, Marco Antônio de Oliveira Viu, Cláudia Bueno Alves, Caroline Rocha de Oliveira Lima, Olízio Claudino da Silva,
Implantes biológicos e sintéticos têm sido comumente utilizados em cirurgia experimental com resultados promissores. Esse trabalho tem por objetivo avaliar a viabilidade do compósito de látex, poliamida e polilisina a 0,1% como implante nas hernioplastias umbilicais recidivantes. Utilizou-se 12 bovinos, mestiços e machos (idade 8–10m). As hernioplastias foram efetuadas com a justaposição do compósito sob o anel herniário. Efetuou-se avaliações clínicas diárias, por meio de escores, como segue: processo ...
Tópico(s): Urological Disorders and Treatments
2018 - UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL | ACTA SCIENTIAE VETERINARIAE
Produção Nacional
Revisado por pares
João Paulo Sant Ana Santos de Souza, Gabriel Ayub, Mateus Henrique Nogueira, Tamires Zanão, Tátila Martins Lopes, Luciana Ramalho Pimentel‐Silva, Vinícius Domene, Gabriel García Márquez, Clarissa Lin Yasuda, Letícia Franceschet Ribeiro, Brunno Machado de Campos, José Paulo Cabral de Vasconcellos, Fábio Rogério, Andrei Fernandes Joaquim, Fernando Cendes, Hélder Tedeschi, Enrico Ghizoni,
OBJECTIVE The objective of this study was to evaluate the efficacy and safety of a modified surgical approach for the treatment of temporal lobe epilepsy secondary to hippocampal sclerosis (HS). This modified approach, called temporopolar amygdalohippocampectomy (TP-AH), includes a transsylvian resection of the temporal pole and subsequent amygdalohippocampectomy utilizing the limen insula as an anatomical landmark. METHODS A total of 61 patients who were diagnosed with HS and underwent TP-AH between ...
Tópico(s): Cerebrospinal fluid and hydrocephalus
2020 - American Association of Neurological Surgeons | Journal of neurosurgery
Produção Nacional
Revisado por pares
Léa Silvia Sant’Ana, Sílvia Soares, Paulo Vaz‐Pires,
The aim of this work was to develop a quality index method (QIM) scheme for whole ice-boxed refrigerated blackspot seabream and to perform shelf-life evaluations, using sensory analysis, GR Torrymeter measurements and bacterial counts of specific spoilage organisms (SSO) during chilled storage. A QIM scheme based on a total of 30 demerit points was developed. Sensory, physical and microbiological data were integrated and used to determine the rejection point. Results indicated that the shelf-life ...
Tópico(s): Sensory Analysis and Statistical Methods
2011 - Elsevier BV | LWT
Produção Nacional
Revisado por pares
Helena Maria Pinheiro-Sant’Ana, Paulo César Stringheta, M.V.C. Penteado, Sebastião César Cardoso Brandão,
The influence of foodservice preparation techniques on the riboflavin content in beef, pork and chicken cuts was studied, and its stability after preparation methods compared to steam/convection oven preparation methods has been evaluated. For that, the samples were grilled, fried, roasted and cooked without being immersed in water, using a steam/convection oven and traditional equipment. Results by HPLC have shown that the stability of riboflavin varied (69.3% to 91.4%; 71.8% to 92.7% and 60.1% ...
Tópico(s): Nutritional Studies and Diet
1999 - Wiley | Foodservice Research International
Produção Nacional
Revisado por pares
Enrico Ghizoni, Roger Neves Matias, Stefan Lieber, Brunno Machado de Campos, Clarissa Lin Yasuda, João Paulo Sant Ana Santos de Souza, Pamela Castro Pereira, Augusto Celso Scarparo Amato Filho, Andrei Fernandes Joaquim, Tátila Martins Lopes, Hélder Tedeschi, Fernando Cendes,
Tópico(s): Neonatal and fetal brain pathology
2016 - Elsevier BV | World Neurosurgery
Produção Nacional
Revisado por pares
Leonardo Giacomini, João Paulo Sant Ana Santos de Souza, Cleiton Formentin, Brunno Machado de Campos, Alexandre B. Todeschini, Evandro de Oliveira, Hélder Tedeschi, Andrei Fernandes Joaquim, Fernando Cendes, Enrico Ghizoni,
OBJECTIVE Mesial temporal lobe epilepsy (MTLE) is the most common type of focal epilepsy in adolescents and adults, and in 65% of cases, it is related to hippocampal sclerosis (HS). Selective surgical approaches to the treatment of MTLE have as their main goal resection of the amygdala and hippocampus with minimal damage to the neocortex, temporal stem, and optic radiations (ORs). The object of this study was to evaluate late postoperative imaging findings on the temporal lobe from a structural point ...
Tópico(s): Pharmacological Effects and Toxicity Studies
2020 - American Association of Neurological Surgeons | Neurosurgical FOCUS
Produção Nacional
Revisado por pares
J. Costa, Rômulo A. Ando, Antônio Carlos Sant’Ana, Liane M. Rossi, Paulo Sérgio da Silva Santos, Márcia L. A. Temperini, Paola Cório,
The behavior of Au nanorods and Ag nanocubes as analytical sensors was evaluated for three different classes of herbicides. The use of such anisotropic nanoparticles in surface-enhanced Raman scattering (SERS) experiments allows the one to obtain the spectrum of crystal violet dye in the single molecule regime, as well as the pesticides dichlorophenoxyacetic acid (2,4-D), trichlorfon and ametryn. Such metallic substrates show high SERS performance at low analyte concentrations making them adequate ...
Tópico(s): Spectroscopy Techniques in Biomedical and Chemical Research
2009 - Royal Society of Chemistry | Physical Chemistry Chemical Physics
Produção Nacional
Revisado por pares
Flávia Milagres Campos, Helena Maria Pinheiro-Sant'Ana, Patrícia Matias de Souza, Paulo César Stringheta, José Benício Paes Chaves,
Para fornecer dados sobre a influência climática e a forma de comercialização sobre carotenóides de vegetais, este estudo pesquisou o conteúdo de alfa e beta-caroteno e o valor de vitamina A de sete hortaliças (batata-doce, cenoura, moranga, pimentão, quiabo, tomate e vagem), na cidade de Viçosa (MG), utilizando a Cromatografia Líquida de Alta Eficiência. Compararam-se hortaliças comercializadas nos mercados formal (mercados locais) e informal (feira livre) durante primavera, verão e outono. A cenoura ...
Tópico(s): Antioxidant Activity and Oxidative Stress
2006 - Sociedade Brasileira de Ciência e Tecnologia de Alimentos | Food Science and Technology
Produção Nacional
Revisado por pares
Antônio Carlos Sant’Ana, Túlio C. R. Rocha, Paulo Sérgio da Silva Santos, Daniela Zanchet, Márcia L. A. Temperini,
Abstract Surface‐enhanced Raman scattering (SERS) spectra of 2‐amino‐5‐nitropyridine (ANP) adsorbed on colloidal silver triangular nanoplates were obtained using samples with different mean sizes and surface plasmon frequencies. The relative SERS enhancement factor for each sample was determined by the analysis of the normalized SERS excitation profiles of ANP vibrational modes for nanoplates in suspension, without aggregation. The SERS profiles are blue‐shifted in relation to the localized surface ...
Tópico(s): Nonlinear Optical Materials Studies
2008 - Wiley | Journal of Raman Spectroscopy
Produção Nacional
Revisado por pares
Wanderson Lyrio Bermudes, Bruna Tomaz Sant’Ana, J.H.O. Braga, Paulo Henrique de Souza,
In scientific research, we always seek to excellence in methodology, since the definition of the best method is as important as the choice of the scale to be used. This study aims to identify the types of scales used in research and its applications. The four most common types of scale are: nominal, ordinal, interval and ratio. Among the attitude scales used in scientific research, we highlight the Thurstone and the Likert. The Thurstone scale is used to measure a probable human attitude without ...
Tópico(s): Business and Management Studies
2016 - Essentia Editora | Vértices
Produção Nacional
Revisado por pares
Karollyne Gomes de Castro Monsores, Anderson Oliveira da Silva, Suzane de Sant’ Ana Oliveira, Ricardo Pondé Weber, Paulo Feliciano Soares Filho, Sérgio Neves Monteiro,
The mechanical, structural, and morphological properties of polystyrene under fatigue combined with accelerated aging were investigated. Modifications produced by irradiation were evaluated by physical and mechanical tests. The results revealed that under fatigue condition (tension–tension) combined with exposure to the most intense sun ultraviolet (UV–B) radiation interval of wavelength from 280 to 320 nm, in the period of 336 and 575 h, the mechanical resistance was found lower when compared to ...
Tópico(s): Polymer Nanocomposites and Properties
2021 - Elsevier BV | Journal of Materials Research and Technology
Rubens Cardozo de Castro, Tuana Caruso Medeiros, Heitor Marques Honório, Eduardo Sant’Ana, Paulo Sérgio da Silva Santos,
Objective . The current model of education has been suffering changes, undergoing renovations, and seeking using and enjoying increasingly technological resources, as, for example, the Learning Management System (LMS). One of the most used LMS platforms is the Modular Object Oriented Dynamic Learning Environment (Moodle). This article proposes to demonstrate how Moodle platform was introduced in the subject of Stomatology through a clear and objective methodology. Study Design . In six months, 49 undergraduate ...
Tópico(s): Biomedical and Engineering Education
2017 - Hindawi Publishing Corporation | Education Research International
Produção Nacional
Revisado por pares
Everaldo Máximo, Carlos Roberto Sant Ana Filho, Paulo César Ocheuze Trivelin, José Albertino Bendassolli,
The ion exchange chromatography technique in a cascade process was used to separate stable isotopes of nitrogen (14N/15N). For this purpose, three column systems (with different internal diameters, S1−14.5 cm; S2–9.5 cm; S3–5.2 cm) were used that contained the cationic resins DOWEX 50 WX8 (as H+ and equilibrated with H2O) and measured 1.7 m in height. Isotopic fractionation of nitrogen occurs during displacement band chromatography (DBC) of the NH3 (aq) solution with a 0.75 mol L−1 NaOH solution. The ...
Tópico(s): Chemical Synthesis and Characterization
2013 - Taylor & Francis | Solvent Extraction and Ion Exchange