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Search Results: 1 - 10 of 28438 matches for " Gracielle Ferreira Andrade "
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Mesoporous Silica SBA-16 Functionalized with Alkoxysilane Groups: Preparation, Characterization, and Release Profile Study
Gracielle Ferreira Andrade,Daniel Cristian Ferreira Soares,Ramon Kenned de Sousa Almeida,Edésia Martins Barros Sousa
Journal of Nanomaterials , 2012, DOI: 10.1155/2012/816496
Abstract: A mesoporous material sphere based on silica, SBA-16, was chemically modified with alkoxysilane using two different solvents: methanol and toluene. The influence of the chemical modification of the matrix on the release rate of a model drug was also studied. The structural characteristics of the materials were evaluated by small-angle X-ray diffraction, N2 adsorption, and transmission electron microscopy. The functionalization of the matrix was evaluated using thermal analysis, FTIR spectroscopy, 13C and 29Si solid-state nuclear magnetic resonance, and elemental analysis, CHN. The results show that alkoxysilane groups have been chemically bonded to silicon atoms on the surface of cubic Im3m mesoporous silica. The influence of the release rate of atenolol molecules from chemically modified mesoporous SBA-16 could be identified, since significant differences could be observed among the release patterns of the different materials.
Incidência e aspectos clínico-laboratoriais do Lúpus eritematoso sistêmico em cidade do Sul do Brasil
Nakashima, Carlos Alberto Kenji;Galhardo, Ana Paula;Silva, Jackeline Ferreira Marinho da;Fiorenzano, Gracielle Rodrigues;Santos, Anelyse Bozzo da Silva dos;Leite, Manoel Fernando Silva;Nogueira, Marcio Augusto;Menolli, Poliana Vieira da Silva;Menolli, Rafael Andrade;
Revista Brasileira de Reumatologia , 2011, DOI: 10.1590/S0482-50042011000300004
Abstract: introduction: brazilian epidemiological studies on systemic lupus erythematosus (sle) are scarce, and currently available data originate almost entirely from international literature. objectives: to determine the incidence and some clinical and laboratory characteristics of patients with sle in the municipality of cascavel, state of paraná, brazil. patients and methods: data were collected from august 2007 to july 2008 in all health services of cascavel providing health care in rheumatology: a university-affiliated hospital, a public outpatient clinic, and three private clinics. results: the study identified 14 patients diagnosed with sle, which resulted in an estimated incidence of 4.8 cases/100,000 inhabitants/year. all patients were female, and the mean age was 41.5 years. the highest incidence of disease occurred between 30 and 39 years of age, and 92.8% of patients met at least four of the 11 american college of rheumatology (acr) criteria for diagnosis of sle. the drug treatment of patients was also assessed and proved to be in accordance with the brazilian consensus for treatment of sle. conclusion: the incidence obtained in the municipality of cascavel is close to those reported in international studies.
Effect of mesoporous silica under Neisseria meningitidis transformation process: environmental effects under meningococci transformation
Luciana M Hollanda, Gisele CG Cury, Rafaella FC Pereira, Gracielle A Ferreira, Andreza Sousa, Edesia MB Sousa, Marcelo Lancellotti
Journal of Nanobiotechnology , 2011, DOI: 10.1186/1477-3155-9-28
Abstract: we used three different mesoporous silica particles to verify their action in N. meningitis transformation frequency.we verified the increase in the capsular gene replacement of this bacterium with the three mesoporous silica nanoparticles.the mesouporous silica particles were capable of increasing the capsule replacement frequency in N. meningitidis.Freshly isolated Neisseria meningitidis are naturally competent and exchange genetic information with each other by this process. They are also known as a commensal bacterium of the human upper respiratory tract that may occasionally provoke invasive infections such as septicemia and meningitis. This natural competence has been directly correlated to pilliation of these organisms [1] as well as a specific uptake sequence contained multifold within the genome of these bacteria. Pilliated strains are easily transformed by direct incubation with a plasmid containing the uptake sequence or chromosomal DNA [2]. The advantages of doing genetic manipulations within these well-known strains are numerous. Development of systems to construct specific genomic mutations has been used to study their pathogenesis [3-5].The use of the mutations for the study of the capsular polysaccharide of N. meningitidis allowed the advances in the meningococci pathogenesis understandings [6-8]. The capsular polysaccharide is a major virulence factor and a protective antigen. Meningococcal strains are classified into 12 different serogroups according to their capsular immune specificity, among wich the serogroups A, B, C, Y and W135 are the most frequently found in invasive infections. The capsule of serogroups B, C, Y and W135 strains is composed of either homopolymers (B and C) or heteropolymers (Y and W135) of sialic acid-containing polysaccharides that are specifically linked, depending on the serogroup [9-11]. This polymerization is mediated by the polysialyltransferase, encoded by the siaD gene in strains of serogroups B and C (also called sy
Casas de vivenda e de morada: estilo de constru??o e interior das residências da elite escravista sul-mineira - século XIX
Andrade, Marcos Ferreira de;
Anais do Museu Paulista: História e Cultura Material , 2004, DOI: 10.1590/S0101-47142004000100015
Abstract: this article aims at investigating some aspects of the material culture of the slaving elite from southern minas gerais, with a special attention given to the changes that took place both in the outside and the inside of slave houses. the region suffered considerable changes after the portuguese court came to brazil in 1808. there was an intensification of the commerce of those goods directed to supplying the markets of rio de janeiro, which allowed for the social-economic and political ascension of some land- and slave-owners from that area along the first decades of the 19th century.
Casas de vivenda e de morada: estilo de constru o e interior das residências da elite escravista sul-mineira século XIX
Marcos de Andrade Ferreira
Anais do Museu Paulista: História e Cultura Material , 2004,
Abstract: This article aims at investigating some aspects of the material culture of the slaving elite from Southern Minas Gerais, with a special attention given to the changes that took place both in the outside and the inside of slave houses. The region suffered considerable changes after the Portuguese court came to Brazil in 1808. There was an intensification of the commerce of those goods directed to supplying the markets of Rio de Janeiro, which allowed for the social-economic and political ascension of some land- and slave-owners from that area along the first decades of the 19th Century.
Activation of the corticotropin-releasing factor receptor from the basolateral or central amygdala modulates nociception in guinea pigs  [PDF]
Alberto Ferreira Donatti, Christie Ramos Andrade Leite-Panissi
Advances in Bioscience and Biotechnology (ABB) , 2013, DOI: 10.4236/abb.2013.46A004
Abstract: Corticotropin-releasing factor (CRF) is a peptide that is released from the hypothalamus into widespread areas of the brain. Evidence has suggested that CRF is involved as a neuromodulator outside of the hypothalamic-pituitary-adrenal axis, playing an important role in fear, anxiety, depression and pain modulation. Our previous report demonstrated that CRF receptor activation in basolateral (BLA) or central nuclei of the amygdala (CeA) produces innate fear in guinea pigs. Inhibition of these receptors via administration of α-helical CRF9-41 (a nonspecific antagonist) into the CeA or BLA decreased innate fear behavior [1]. Additionally, there is strong evidence that emotional behavior and nociception can be modulated simultaneously. The present study was conducted to investigate the involvement of the CRF receptors of the BLA or CeA in nociception in guinea pigs. Guinea pigs were treated with CRF and α-helical CRF>9-41> in three different doses or injected with α-helical CRF9-41 preceded by CRF into the BLA or CeA, and they were evaluated using the hot plate test. Our findings indicated that activation of CRF receptors in the BLA and in the CeA promoted antinociception, and this effect was reversed by preadministration of α-helical CRF9-41 in the same area.
A difícil convivência com o cancer: um estudo das emo??es na enfermagem oncológica
Ferreira, Noeli Marchioro Liston Andrade;
Revista da Escola de Enfermagem da USP , 1996, DOI: 10.1590/S0080-62341996000200005
Abstract: the present study represents an attempt to verify which emotions are present in nursing activities with cancer patients and how nurses deal with them. in order to reach this goal, a quantitative approach was used in order to allow a comprehension of the population studied and their work conditions. after that, field observations and structured and semiestructured interviews were carried out so as to understand how emotion was experienced and dealt with.thematic analysis of the nurses discourse was conducted in order to identify the core of the emotional issues and to elaborate the maps of association of ideas. the main themes were: the disease, the patient, the team and the health instituition, the emotions that emerged and ways of coping. data analysis allowed to identfy which emotions are present in every day situations of nursing care, the ways of coping that are used with difficult situation and the mediation of the institutional culture in the control of emotional expressions.
Conception of a management tool of Technology Enhanced Learning Environments
Sergio Andre Ferreira,Antonio Andrade
Computer Science , 2012,
Abstract: This paper describes the process of the conception of a software tool of TELE management. The proposed management tool combines information from two sources: i) the automatic reports produced by the Learning Content Management System (LCMS) Blackboard and ii) the views of students and teachers on the use of the LCMS in the process of teaching and learning. The results show that the architecture of the proposed management tool has the features of a management tool, since its potential to control, to reset and to enhance the use of an LCMS in the process of teaching and learning and teacher training, is shown.
First occurrence of Amblyomma ovale in the State of Rio Grande do Norte, Brazil Primeira ocorrência de Amblyomma ovale no Estado do Rio Grande do Norte, Brasil
Caroline Gracielle Torres Ferreira,Ana Carla Diógenes Suassuna Bezerra,Otávio Valério de Carvalho,Márcia Rogéria de Almeida
Revista Brasileira de Parasitologia Veterinária , 2013,
Abstract: This study aims to report the occurrence of parasitism by Amblyomma ovale (Koch, 1844) in dogs in the municipality of Apodi, Rio Grande do Norte, Brazil. Specimens were identified as being one female and two males of A. ovale, besides; the animal was infested by five females of Rhipicephalus (Boophilus) microplus and seven females and three males of R. sanguineus. The finding of A. ovale confirms results in the literature that these ticks, reported in several species of wild carnivores, can also infect dogs in Brazil. The distribution of this tick species in several Brazilian states has already been confirmed, but this is the first report in the State of Rio Grande do Norte. This finding highlights the risk of the carrying of emerging and re-emerging pathogens to peridomestic hosts are as, either because of the frequency of these ticks in wild environments or the presence of infected wild animals near peridomestic environments, exposing domestic dogs to parasitism by A. ovale ticks and, therefore, to agents potentially carried by this ectoparasite. O presente estudo objetiva comunicar a ocorrência do parasitismo por Amblyomma ovale (Koch, 1844) em c o, no município de Apodi, Rio Grande do Norte, Brasil. Os exemplares foram identificados como sendo uma fêmea e dois machos de A. ovale, além destes, o animal estava parasitado por cinco fêmeas de Rhipicephalus (Boophilus) microplus, sete fêmeas e três machos de R. sanguineus. O encontro de A. ovale confirma os resultados da literatura de que esses carrapatos, relatados em várias espécies de carnívoros silvestres, também podem infestar c es no Brasil. Este carrapato tem sua distribui o confirmada em vários estados brasileiros, sendo este o primeiro relato no Estado do Rio Grande do Norte. Este achado alerta para o risco do carreamento de patógenos emergentes e re-emergentes para regi es peridomiciliares, seja devido a frequência destes carrapatos em ambientes silvestres ou da presen a de animais silvestres parasitados próximos a ambientes peridomiciliares, expondo c es domésticos ao parasitismo por carrapatos A. ovale e, consequentemente, a agentes potencialmente veiculados por este ectoparasito.
Pregnancy-Related Low Back Pain Relief after Maximum Static Flexibility Program  [PDF]
Helena Andrade Figueira, Rodrigo Gomes de Souza Vale, Wilma Ferreira Guedes Rodrigues, Alan Andrade Figueira, Joana Andrade Figueira, Estélio Henrique Martin Dantas
Health (Health) , 2014, DOI: 10.4236/health.2014.621335
Abstract: Background: Pregnancy-related low back pain (LBP) impacts pregnancy. Flexibilizing facilitates movements providing posture correction and pain relief. Objective: To analyze effects of a maximum static flexibility program on pregnancy’s LBP. Methods: Clinical prospective randomized controlled trial. Setting: Brazilian Governmental Health Program’s prenatal care. Participants: 40 volunteer of pregnant women, gestational age between 20 and 31 weeks, with/without LBP randomly assigned to experimental group (EG) or control group (CG): EG n = 20 (E1 with LBP and E2 without LBP) and CG n = 20 (C1 with LBP and C2 without LBP). Interventions: EG intervention was sessions of static flexion. CG received conventional medical treatment. Pain intensity was measured by visual analog scale (VAS) of pain. Chi-square, Wilcoxon and the Kruskal-Wallis statistical tests were adopted. Results: Concerning percent variation (Δ%) E1 presented 56.4% reduction of LBP while E2, C1, C2 increased LBP by 2.9%, 0.1%, 0.5% respectively. Wilcoxon test outcome comparing pre- and post-test of experimental and control groups on pain intensity levels presented significant E1 p < 0.05. Kruskal-Wallis test comparing post-test C1 with E1 with E2 and C2 presented p < 0.05 (C1 post vs. E1 post: p = 0.006; C1 post vs. E2 post: p < 0.0001; C1 post vs. C2 post: p = 0.002), showing significant effect of the experimental treatment. Conclusion: Gains on LBP for EG show that the static flexibilizing exercises reduce and prevent pregnancy-related LBP.
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