Samira Fernandes Nassar, Nicolas Delpouve, Cyrille Sollogoub, Alain Guinault, Grégory Stoclet, G. Régnier, Sandra Domenek,
The barrier properties of poly(l-lactide) (PLLA) were investigated in multinanolayer systems, probing the effect of confinement, the compatibility between the confining and the confined polymer, crystal orientation, and amorphous phase properties. The multilayer coextrusion process was used to confine PLLA between two amorphous polymers (polystyrene, PS; and polycarbonate, PC), which have different chemical affinities with PLLA. Confined PLLA layers of approximately 20 nm thickness were obtained. ...
Tópico(s): Nanocomposite Films for Food Packaging
2020 - American Chemical Society | ACS Applied Materials & Interfaces
Produção Nacional
Revisado por pares
Samira Fernandes Morais dos Santos, Fernanda Valente Mendes Soares, Andrea Dunshee de Abranches, Ana Carolina Carioca da Costa, Maria Elisabeth Lopes Moreira, Vânia Matos Fonseca,
Children with microcephaly due to vertical exposure to Zika virus are an interesting population for investigation. Highlighted among their unique aspects are those related to nutrition due to its impact on child growth and development. Knowledge about the nutrition of microcephalic infants can help mothers and caregivers provide better care. Thus, this study aimed to describe the nutritional status and feeding practices of infants with microcephaly due to Zika virus exposure at birth and 12–23 months ...
Tópico(s): Global Maternal and Child Health
2019 - BioMed Central | Nutrition Journal
Xavier Monnier, Samira Fernandes Nassar, Sandra Domenek, Alain Guinault, Cyrille Sollogoub, Éric Dargent, Nicolas Delpouve,
The physical aging behavior of amorphous polylactide constrained against polystyrene in layers of 300 nm, thanks to the layer–multiplying co–extrusion process, was investigated by fast–scanning calorimetry (FSC). By cooling down the sample from the liquid state to the glassy one at very fast scanning rates, it was possible to investigate the structural relaxation of the polymer glass at high temperatures for which the time needed to reach the equilibrium was shortened. Therefore it was possible to ...
Tópico(s): Polymer Nanocomposites and Properties
2018 - Elsevier BV | Polymer
Sandra Domenek, Samira Fernandes-Nassar, Violette Ducruet,
Knowledge of the fundamental parameters of the poly(lactic acid) (PLA) molecular chain and resulting macroscopic properties is important for successful application of this polymer in different domains. Rheological data show that PLA has the typical properties of a linear and semi-stiff polymer chain. The stereochemical composition of the atactic polymer chain does not impact the rheological, mechanical, and barrier properties of PLA. Most commercial PLA grades contain a large majority of l-lactic ...
Tópico(s): Bone Tissue Engineering Materials
2017 - Springer Science+Business Media | Advances in polymer science
Samira Fernandes Nassar, Sandra Domenek, Alain Guinault, Grégory Stoclet, Nicolas Delpouve, Cyrille Sollogoub,
Multi-nanolayered polystyrene/poly(l,l-lactide) (PS/PLLA) films were obtained by the layer-multiplying coextrusion process, with an individual PLLA layer thickness as thin as 20 nm. The confinement of the amorphous PLLA induced a change in the molecular mobility, evidenced by a drop of the cooperative rearranging region (CRR) size at the glass transition. The annealing of confined PLLA layers revealed slower crystallization kinetics and two-dimensional crystalline growth geometry. Furthermore, the ...
Tópico(s): Polymer Nanocomposites and Properties
2017 - American Chemical Society | Macromolecules
Samira Fernandes Nassar, Clara Dombre, Emmanuelle Gastaldi, François Touchaleaume, Pascale Chalier,
ABSTRACT Nanocomposites films were designed from soy protein isolates (SPI), clays (Na + ‐MMT), and eugenol an antimicrobial agent. Interactions between Na + ‐MMT and eugenol were evidenced by a shift of the d ‐spacing by X‐ray diffraction analysis. The addition of Na + ‐MMT (5 and 7.5% w/w) in SPI solution increased its shear thinning behavior and its consistency. Accordingly, a good exfoliation of clays in SPI films was observed. The glass transition temperature of SPI films was impacted by the clays addition ...
Tópico(s): Polymer Nanocomposites and Properties
2017 - Wiley | Journal of Applied Polymer Science
Samira Fernandes Nassar, Alain Guinault, Nicolas Delpouve, Véronique Divry, Violette Ducruet, Cyrille Sollogoub, Sandra Domenek,
Semicrystalline polylactide (PLA) films with controlled morphology were produced by thermal crystallization to optimize the oxygen barrier properties. The crystalline morphology of PLA at the scales of the lamella and the spherulite was investigated and the mobile amorphous phase dynamics were studied. The crystalline morphology had a negligible impact on the oxygen diffusion coefficient. The occurrence of a rigid amorphous fraction (RAF) in the amorphous phase due to its insufficient decoupling from ...
Tópico(s): Additive Manufacturing and 3D Printing Technologies
2016 - Elsevier BV | Polymer
Produção Nacional
Revisado por pares
Manuel Fernando Coronado Jorge, Christian Humberto Caicedo Flaker, Samira Fernandes Nassar, Izabel Cristina Freitas Moraes, Ana Mônica Quinta Barbosa Bittante, Paulo José do Amaral Sobral,
Interested in developing gelatin-based nanocomposites using a spreading technique, this research aimed to study the effect of nanoparticles concentration on the rheological properties of nanocomposite-forming solutions (NFS) based on gelatin and montmorillonite (MMT). The NFS were produced with 5 and 8 g gelatin/100 g NFS; 30 g glycerol/100 g gelatin and 0, 5, 10 and 15 g MMT/100 g gelatin. Rheological tests were carried out in an AR2000 rheometer. Also, the dispersions of MMT in water were analyzed ...
Tópico(s): Blood properties and coagulation
2013 - Elsevier BV | Journal of Food Engineering
Produção Nacional
Revisado por pares
Samira Fernandes Morais dos Santos, Fernanda Valente Mendes Soares, Andrea Dunshee de Abranches, Ana Carolina Carioca da Costa, Saint Clair Gomes, Vânia Matos Fonseca, Maria Elisabeth Lopes Moreira,
To describe the nutritional profile of newborns with microcephaly and factors associated with worse outcomes during the first 14 days of life.This investigation is a longitudinal, descriptive study carried out in 21 full-term neonates exposed vertically to the Zika virus and hospitalized in a neonatal intensive care unit from February to September 2016. Patients receiving parenteral nutrition were excluded. Data analysis was performed using a generalized estimating equation model and Student's t- ...
Tópico(s): Infant Development and Preterm Care
2019 - Elsevier BV | Clinics
Produção Nacional
Revisado por pares
Cristiana Brasil de Almeida Rebouças, Moziane Mendonça de Araújo, Fernanda Cavalcante Braga, Giselle Taveira Fernandes, Samira Cavalcante Costa,
to evaluate the quality of life of visually impaired using WHOQOL-100.exploratory, descriptive, and quantitative study, performed between April and May 2013 with 20 visually impaired of the Blind Association of Ceará, through interviews.the analysis showed that males predominated (80%), 41-55 years (40%), students (50%) and personal income than the minimum wage (70%). Participants were self-rated with good quality of life (68.75%). The facets with the highest rates were personal relationships (74.06%), ...
Tópico(s): Youth, Drugs, and Violence
2016 - Associação Brasileira de Enfermagem | Revista Brasileira de Enfermagem
Juliette Morgan, Ana Paula Abílio, Maria do Rosario Pondja, Dulcisária Marrenjo, Jacinta Luciano, Guilhermina Fernandes, Samira Sabindy, Adam Wolkon, Gabriel Ponce de León, Adeline Chan, Jodi Vanden Eng,
We conducted a prospective evaluation to measure the physical durability of two brands of long-lasting insecticidal nets (LLINs) distributed during a campaign in 2008 in Nampula Province, Mozambique. Households with LLINs tagged during the campaign (6,000) were geo-located (34%) and a random sample was selected for each of 3 years of follow-up. The LLINs were evaluated in the field and a laboratory for presence of holes and a proportional hole index (pHI) was calculated following the World Health Organization ...
Tópico(s): Parasites and Host Interactions
2014 - American Society of Tropical Medicine and Hygiene | American Journal of Tropical Medicine and Hygiene
Produção Nacional
Revisado por pares
Mário Luiz Ribeiro Monteiro, Danilo B. Fernandes, Samira Luísa Apóstolos‐Pereira, Dagoberto Callegaro,
Purpose.: We compared retinal nerve fiber layer (RNFL) and macular thickness measurements in patients with multiple sclerosis (MS) and neuromyelitis optica (NMO) with or without a history of optic neuritis, and in controls using Fourier-domain (FD) optical coherence tomography (OCT). Methods.: Patients with MS (n = 60), NMO (n = 33), longitudinal extensive transverse myelitis (LETM, n = 28) and healthy controls (n = 41) underwent ophthalmic examination, including automated perimetry, and FD-OCT RNFL and macular ...
Tópico(s): Optical Coherence Tomography Applications
2012 - Cadmus Press | Investigative Ophthalmology & Visual Science
Produção Nacional
Revisado por pares
Samira Fernandes Morais dos Santos, Ana Carolina Carioca da Costa, Roberta Gabriela Pimenta da Silva Araújo, Laís Araújo Tavares Silva, Silvana Granado Nogueira da Gama, Vânia Matos Fonseca,
Abstract The scope of this article is to evaluate the adequacy of total gestational weight gain (GWG) according to maternal characteristics of Brazilian adolescents. It involved a cross-sectional, hospital-based study. A total of 3,904 teenagers with a single fetus gestation and gestational age (GA) at birth ≥ 37 weeks were included. A hierarchical model was built to analyze the dependent and independent variables adequacy of GWG: sociodemographic, care, obstetric and behavioral characteristics. The ...
Tópico(s): Birth, Development, and Health
2022 - ASSOCIAÇÃO BRASILEIRA DE SAÚDE COLETIVA | Ciência & Saúde Coletiva
Samira Fernandes Nassar, Huzeifa Ismail, E.M. Sayed, A. Elfalaky,
Tópico(s): Electromagnetic Effects on Materials
1975 - Springer Nature | Applied Physics
Ismail Elhamdaoui, Kheireddine Rifaï, Javed Iqbal, Nessrine Mohamed, Samira Selmani, Jordan Fernandes, Paul Bouchard, Marc Constantin, Marcel LaFlamme, Mohamad Sabsabi, François Vidal,
Using a calibration model built from 14 compressed powders of reference materials doped with gold in solution, the gold concentration of 32, 6-sided, ore samples was determined by LIBS and then compared to those obtained by conventional laboratory techniques (gravimetry/atomic absorption). The studied samples are on average ~ 4 cm long and they were collected from 6 different gold mines of the Abitibi greenstone belt (Canada). LIBS measurements are found to be accurate for homogeneous powder samples ...
Tópico(s): Cultural Heritage Materials Analysis
2021 - Elsevier BV | Spectrochimica Acta Part B Atomic Spectroscopy
Produção Nacional
Revisado por pares
Carlos Sacristán, RA Réssio, PV de Castilho, Natália Coelho Couto de Azevedo Fernandes, Samira Costa‐Silva, Fernando Esperón, FG Daura-Jorge, KR Groch, CKM Kolesnikovas, Juliana Marigo, Paulo Henrique Ott, Larissa Rosa de Oliveira, Angélica María Sánchez‐Sarmiento, Paulo C. Simões‐Lopes, JL Catão‐Dias,
DAO Diseases of Aquatic Organisms Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials DAO 117:229-235 (2016) - DOI: https://doi.org/10.3354/dao02954 Lacaziosis-like disease in Tursiops truncatus from Brazil: a histopathological and immunohistochemical approach Carlos Sacristán1,*, Rodrigo Albergaria Réssio2, Pedro Castilho3, Natália Coelho Couto De Azevedo Fernandes2, Samira Costa-Silva1, Fernando Esperón4, ...
Tópico(s): Microplastics and Plastic Pollution
2015 - Inter-Research | Diseases of Aquatic Organisms
Produção Nacional
Marcelo Tsuguio Okano, Samira Nascimento Antunes, Marcelo Eloy Fernandes,
The new processes for using digital technologies, are requiring manufacturing companies to adapt to these new scenarios, causing a digital transformation. Although the theme Digital transformation is new and current in manufacturing, the way it is being implemented by manufacturing companies is in design and study. Each company adopts or plans its strategy in relation to the digital platform and digital ecosystem. Two digital technologies are widely cited when discussing digital transformation, ...
Tópico(s): Digital Transformation in Industry
2021 - INSTITUTO FEDERAL DE SÃO PAULO | Independent Journal of Management & Production
Produção Nacional
Revisado por pares
Vilmeyze Larissa de Arruda, Bruna Hinnah Borges Martins de Freitas, Samira Reschetti Marcon, Fabiana Yanes Fernandes, Nathalie Vilma Pollo de Lima, Juliano Bortolini,
Resumo Este estudo teve como objetivo analisar a série temporal da mortalidade por suicídio em adultos jovens brasileiros entre os anos de 1997 e 2019. Trata-se de um estudo ecológico, de séries temporais com indivíduos de 20 a 29 anos. Para a análise de tendência foi utilizada a regressão de Prais-Winsten. No período, o coeficiente médio de suicídio em jovens brasileiros foi de 6,36/100 mil habitantes, apresentando tendência crescente, tanto o geral, quanto no sexo feminino e masculino. Em relação ...
Tópico(s): Psychosomatic Disorders and Their Treatments
2021 - ASSOCIAÇÃO BRASILEIRA DE SAÚDE COLETIVA | Ciência & Saúde Coletiva
Islem Belaid, Benoît Macqueron, Marie-Noëlle Poradowski, Samira Bouaouli, Julien Thuilliez, Fernande Da Cruz‐Boisson, Vincent Monteil, Franck D’Agosto, Lionel Perrin, Christophe Boisson,
Copolymers of ethylene and butadiene were prepared using the ansa-bisfluorenyl complex Me2Si(C13H8)2NdR in combination with dialkylmagnesium as a chain transfer agent. Thorough kinetic studies and computational mechanistic investigations of this copolymerization reaction were performed. In combination with detailed analyses of the polymer microstructure and chain ends, these studies demonstrate that the title copolymerization operates according to a living coordinative chain transfer copolymerization ...
Tópico(s): Synthetic Organic Chemistry Methods
2019 - American Chemical Society | ACS Catalysis
Produção Nacional
Revisado por pares
Jotele Fontana Agostini, Helena Cristina Zuehl Dal Toé, Karine Medeiros Vieira, Samira Leila Baldin, Naithan Ludian Fernandes Costa, Carolina Uribe Cruz, Larisse Longo, Marcel Marcos Machado, Themis Reverbel da Silveira, Patrícia Fernanda Schuck, Eduardo Pacheco Rico,
Tópico(s): Neuroscience and Neuropharmacology Research
2017 - Springer Science+Business Media | Neurotoxicity Research
Produção Nacional
Revisado por pares
Rossilene Conceição da Silva Cruz, Samira Bührer-Sékula, Maria Lúcia Fernandes Penna, Gerson Oliveira Penna, Sinésio Talhari,
In this review, the most relevant and current epidemiological data, the main clinical, laboratory and therapeutical aspects of leprosy are presented. Detailed discussion of the main drugs used for leprosy treatment, their most relevant adverse effects, evolution of the therapeutic regimen, from dapsone as a monotherapy to the proposed polychemotherapy by World Health Organization (WHO) can be found in this CME. We specifically highlight the drug acceptability, reduction in treatment duration and ...
Tópico(s): Mycobacterium research and diagnosis
2017 - Elsevier BV | Anais Brasileiros de Dermatologia
Nigel I. Wood, Valentina Carta, Stefan Milde, Elizabeth A. Skillings, Catherine McAllister, Y.L. Mabel Ang, Alasdair Duguid, Nadeev Wijesuriya, Samira Mohd Afzal, Joe X. Fernandes, Tian Weng Leong, Jennifer P. Morton,
Background Environmental enrichment (EE) in laboratory animals improves neurological function and motor/cognitive performance, and is proposed as a strategy for treating neurodegenerative diseases. EE has been investigated in the R6/2 mouse model of Huntington's disease (HD), where increased social interaction, sensory stimulation, exploration, and physical activity improved survival. We have also shown previously that HD patients and R6/2 mice have disrupted circadian rhythms, treatment of which ...
Tópico(s): Fibromyalgia and Chronic Fatigue Syndrome Research
2010 - Public Library of Science | PLoS ONE
Produção Nacional
Revisado por pares
Samira Fernandes Morais dos Santos, Ana Carolina Carioca da Costa, Roberta Gabriela Pimenta da Silva Araújo, Laís Araújo Tavares Silva, Silvana Granado Nogueira da Gama, Vânia Matos Fonseca,
The scope of this article is to evaluate the adequacy of total gestational weight gain (GWG) according to maternal characteristics of Brazilian adolescents. It involved a cross-sectional, hospital-based study. A total of 3,904 teenagers with a single fetus gestation and gestational age (GA) at birth ≥ 37 weeks were included. A hierarchical model was built to analyze the dependent and independent variables adequacy of GWG: sociodemographic, care, obstetric and behavioral characteristics. The chances ...
Tópico(s): Breastfeeding Practices and Influences
2022 - ASSOCIAÇÃO BRASILEIRA DE SAÚDE COLETIVA | Ciência & Saúde Coletiva
Produção Nacional
Revisado por pares
Laís Araújo Tavares Silva, Maria Inês Couto de Oliveira, Ana Carolina Carioca da Costa, Samira Fernandes Morais dos Santos, Silvana Granado Nogueira da Gama, Vânia Matos Fonseca,
To analyze the factors associated with infant formula supplementation in newborns referred to rooming-in in Brazilian hospitals.Cross-sectional study with data from 14,531 postpartum women and newborns obtained from the "Birth in Brazil" survey, conducted in 2011-2012. The analysis used a logistic regression model with a hierarchical approach.In total, 21.2% newborns received infant formula during hospital stay. After adjustment, the following factors were associated with the use of infant formula: ...
Tópico(s): Child Nutrition and Feeding Issues
2022 - Elsevier BV | Jornal de Pediatria
Produção Nacional
Revisado por pares
Kathleen Fernandes Grego, Samira Emanuela Maria Vieira, Jarbas Prado Vidueiros, Eliana de Oliveira Serapicos, Cibele Cíntia Barbarini, Giovanni Perez Machado da Silveira, Fabíola de Souza Rodrigues, Lucas de Carvalho Francisco Alves, Daniel Rodrigues Stuginski, Luciana Carla Rameh-de-Albuquerque, Maria de Fátima Domingues Furtado, Anita Mitico Tanaka-Azevedo, Karen de Morais-Zani, Marisa Maria Teixeira da Rocha, Wilson Roberto Fernandes, Sávio Stefanini Sant’Anna,
Maintenance of snakes at Butantan Institute started in the last century, intending to produce a different antivenom serum to reduce death caused by snakebites. Through a successful campaign coordinated by Vital Brazil, farmers sent venomous snakes to Butantan Institute by the railway lines with no cost. From 1908 to 1962, the snakes were kept in an outdoor serpentarium, where venom extraction was performed every 15 days. During this period, the snake average survival was 15 days. In 1963, the snakes ...
Tópico(s): Rabies epidemiology and control
2021 - BioMed Central | The Journal of venomous animals and toxins including tropical diseases
Produção Nacional
Revisado por pares
Frederico C. Martinho, Samira Esteves Afonso Camargo, Aletéia Massula Fernandes, Márcia Sampaio Campos, Renata Falchete do Prado, Carlos Henrique Camargo, Márcia Carneiro Valera,
Abstract Aim To establish an SV 40 T‐Ag‐transfected cell line of human pulp‐derived cells in order to compare the cytotoxicity, genotoxicity and to investigate the activities of immunological biomarkers of several endodontic sealers. Methodology Primary human pulp cells and transfected cells were cultured. Cell morphology and proliferation were analysed, and the expression of cell‐specific gene transcripts and proteins was detected by RT – PCR and immunohistochemistry. Transfection of human pulp‐derived ...
Tópico(s): Endodontics and Root Canal Treatments
2017 - Wiley | International Endodontic Journal
Maria Lúcia Fernandes Penna, Samira Bührer-Sékula, Maria Araci de Andrade Pontes, Rossilene Conceição da Silva Cruz, Heitor de Sá Gonçalves, Gerson Oliveira Penna,
Background: Many believe that the regular treatment for multibacillary (MB) leprosy cases could be shortened. A shorter treatment allowing uniformity in treatment for all cases renders case classification superfluous and therefore simplifies leprosy control. Objective: To evaluate the association between treatment duration and the trend in bacteriological index (BI) decrease over time among patients given Uniform MDT (UMDT) compared to those given regular MDT (RMDT). Methods: An open-label randomised ...
Tópico(s): Tuberculosis Research and Epidemiology
2014 - British Leprosy Relief Association | Leprosy Review
Produção Nacional
Revisado por pares
Gerson Oliveira Penna, Maria Araci de Andrade Pontes, Rossilene Conceição da Silva Cruz, Heitor de Sá Gonçalves, Maria Lúcia Fernandes Penna, Samira Bührer-Sékula,
Leprosy will continue to be a public health problem for several decades. The World Health Organization (WHO) recommends that, for treatment purposes, leprosy cases be classified as either paucibacillary or multibacillary (MB). A uniform leprosy treatment regimen would simplify treatment and halve the treatment duration for MB patients. The clinical trial for uniform multidrug therapy (U-MDT) for leprosy patients (LPs) in Brazil is a randomised, open-label clinical trial to evaluate if the effectiveness ...
Tópico(s): Epilepsy research and treatment
2012 - Instituto Oswaldo Cruz, Ministério da Saúde | Memórias do Instituto Oswaldo Cruz
... Mendes, Sávio Stefanini Sant'Anna, Diego Terenciano Rubio, Samira Emanuela Maria Vieira, Leonardo Pessoa Cabus Oitaven, Kathleen Fernandes Grego Sexual Differences in Growth Rates of Juveniles ...
Tópico(s): Gender Roles and Identity Studies
1990 - University of Chicago Press | The American Naturalist
JAVIER HERNÁANDEZ, Samira Syed, Geoffrey R. Weiss, Gabriel Fernandes, Dendra von Merveldt, Dean A. Troyer, Joseph W. Basler, Ian M. Thompson,
Studies suggest that vitamin E may decrease the risk of prostate cancer. The Prevention Research Veteran Affairs E-vitamin Nutrition Trial is a randomized, double-blind, placebo controlled study designed to assess the effects of vitamin E supplementation on biomarkers associated with prostate cancer risk in peripheral blood and prostate tissue.A total of 44 patients with increased prostate specific antigen (PSA) and/or abnormal digital rectal examination on initial evaluation were randomized to receive ...
Tópico(s): Cancer, Lipids, and Metabolism
2005 - Lippincott Williams & Wilkins | The Journal of Urology