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Search Results: 1 - 10 of 390522 matches for " Maria Inês Monteiro; "
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The Development and Characterization of Polycaprolactone and Titanium Dioxide Hybrids  [PDF]
Mariana Sato de S. B. Monteiro, Maria Inês Bruno Tavares
Advances in Nanoparticles (ANP) , 2018, DOI: 10.4236/anp.2018.71002
Abstract: Organic/Inorganic hybrid materials have been attracting much attention since they combine the advantages of inorganic materials with the properties of organic polymers. Titanium dioxide nanoparticles (TiO2) present good thermal stability, accessibility and catalytic properties. Polycaprolactone (PCL) is a bi-ocompatible and bioresorbable material, which is being examined as biode-gradable packaging materials, controlled drug release carriers and other medical applications. Hybrids based on PCL containing different amounts of titanium dioxide nanoparticles, ranging from 0.05% to 0.35% w/w, were prepared using the solution cast method. These systems were characterized by X-ray diffraction (XRD), infrared spectroscopy (FTIR), low-field nuclear magnetic resonance (NMR), thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). The FTIR analysis confirmed that there was an interaction between the PCL chains and the TiO2 nanoparticles. The XRD and DSC analysis showed that the PCL crystallization was affected by TiO2 incorporation, modifying its semi-crystalline structure to a less ordered structure. When TiO2 nanoparticles were added the values of T1H and T1ρH increased for all hybrids, therefore, their addition produced a new material with less molecular mobility. In the TG analysis, it was observed that the introduction of TiO2 nanoparticles decreased the thermal resistance of PCL. In DSC analysis, the PCL/TiO2 hybrids presented a reduction in the crystallization temperature and degree of crystallinity, except for PCL hybrids containing 0.15% w/w of TiO2 nanoparticles.
Perspectivas interdisciplinar e rizomática na forma??o dos profissionais da saúde
Bagnato, Maria Helena Salgado;Monteiro, Maria Inês;
Trabalho, Educa??o e Saúde , 2006, DOI: 10.1590/S1981-77462006000200003
Abstract: this purpose of this article is to problemize aspects of the interdisciplinary and rhizomatic in the formation of professionals from the health area. both attitudes require plural looks and other postures from the educators in the relationships that they establish with the subjects and with the knowledge, seeking to overcome fragmented manners of the labor processors and the production of science, recovering the dialectic character of the social reality. the challenges posed by these perspectives invite all the educators ethically involved in this to reflect on the inclusion of themes and dimensions that pass transversally by professional formation process and the production of knowledge, moving territories, comprehensions and subjectivities, which can enable innovative and polysemic interpretations, very desirable to deal with the complexity of reality, also in the health area.
Perfil sociodemográfico e estilo de vida de trabalhadores de uma indústria metalúrgica Perfil socio demográfico y estilo de vida de trabajadores de una industria metalúrgica Socio-demographic profile and lifestyle of workers of a metallurgical industry
Maria Raquel Brazil Battaus,Maria Inês Monteiro
Revista Brasileira de Enfermagem , 2013,
Abstract: Estudo epidemiológico transversal realizado em indústria metalúrgica, no interior do estado de S o Paulo, com o objetivo de identificar o perfil sociodemográfico, aspectos de saúde, como índice de massa corporal, horas de sono, tabagismo, etilismo e estilo de vida dos trabalhadores. Foram entrevistados 182 trabalhadores que responderam questionário com dados sociodemográficos, estilo de vida e saúde. A maioria era do sexo masculino (75,8%), com idade média de 33,8 anos, realizava atividade de lazer (88,5%) e fazia hora extra (72,5%). Faziam atividade física (55%); fumavam (17,6%) e relataram ingest o de bebida alcoólica (59,3%). A investiga o dos aspectos de saúde e trabalho é de grande importancia visando à implanta o de medidas de prote o e preven o relacionadas ao trabalho e à vida pessoal de cada trabalhador. Estudio epidemiológico realizado en una industria metalúrgica en el estado de S o Paulo, Brasil, con el objetivo de identificar el perfil socio demográfico, aspectos de la salud, tales como el índice de masa corporal, horas de sue o, el tabaquismo, el consumo de alcohol y estilo de vida de trabajadores. Entrevistamos a 182 trabajadores que respondieron a un cuestionario con el estilo de vida socio demográficas y de salud. La mayoría eran hombres (75,8%), con edad media de 33,8 a os, oscilando, actividades de ocio (88,5%) y que las horas extraordinarias (72,5%). La actividad física fue de 55%, el 17,6% fumaba y el 59,3% dijeron haber bebido alcohol. La investigación de los aspectos de la salud y el trabajo es de gran importancia para la aplicación de las medidas de prevención y protección relacionadas no sólo trabajo, sino también la vida personal de cada trabajador. This is a cross-sectional study, carried out in a metallurgical industry in the state of S o Paulo, Brazil, aiming to identify the demographic profile, health aspects such as body mass index, hours of sleep, smoking, alcohol consumption and lifestyle of the workers. We interviewed 182 workers who answered a questionnaire with socio-demographic, lifestyle and health. The majority was male (75.8%), with a mean age of 33.8 years, did leisure activities (88.5%) and did overtime (72.5%). Physical activity was referred by 55% of the workers, 17.6% smoked and 59.3% reported drinking alcohol. The investigation of health and work aspects is important in order to implement prevention and protection measures related to work and the personal life of each worker.
Evaluation of Nevirapine Release Kinetics from Polycaprolactone Hybrids  [PDF]
Mariana S. S. B. Monteiro, Jackeline Lunz, Pedro J. Sebasti?o, Maria Inês Bruno Tavares
Materials Sciences and Applications (MSA) , 2016, DOI: 10.4236/msa.2016.711055
Abstract: The Nevirapine (NVP)/Polycaprolactone (PCL)/Nanoparticles hybrids systems have been developed as a potential platform for drug delivery, by solvent cast, as thin films. NVP, an antiretroviral drug, was included within PCL matrix containing three types of nanoparticles: an organoclay layered silicate Viscogel S7®(3% w/w), hydrophilic silica oxide particles Aerosil® A20 (0.25% w/w) and titanium dioxide particles (0.25% w/w). These systems were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), low-field nuclear magnetic resonance (NMR), ultraviolet-visible spectroscopy (UV), in-vitro dissolution testing and drug release mechanism kinetics. The PCL crystallization was affected by NVP incorporation, modifying its semi-crystalline structure to a less ordered structure. When nanoparticles and NVP were added, the T1H values increased, for PCL, PCL/S7, PCL/ SiO2 and PCL/TiO2 hybrids, suggesting that its addition produced a new material, with less molecular mobility, due to the new intermolecular interactions formation. It can consider a structure formation among the PCL chains, nanoparticles and NVP, with strong forces in the PCL/SiO2/NVP system. The amount of NVP included was around 1.5 ± 0.03 mg/cm2. In the in-vitro dissolution test, the PCL/SiO2/NVP system released the smallest amount of drug and this result could be attributed to the strong intermolecular interaction between the drug and the PCL/SiO2 system. Higuchi’s model was the mathematical model chosen to treat the release data, since this model presented the highest coefficient correlation (r) value. The drug release probably occur by diffusion through the matrix pores, thus, these materials are suitable for sustained release of NVP.
Development of Polycaprolactone/Poly(Vinyl Alcohol)/Clay Microparticles by Spray Drying  [PDF]
Mariana Sato de S. de B. Monteiro, Claudia Lopes Rodrigues, Eduardo Miguez, Maria Inês B. Tavares
Materials Sciences and Applications (MSA) , 2016, DOI: 10.4236/msa.2016.710048
Abstract: In this study, nanostructured microparticles was developed with polycaprolactone (PCL), poly(vinyl alcohol) (PVAL) and nanoparticles of the commercial sodium clay NT-25® by using the spray drying technique. The systems obtained were characterized by Nuclear Magnetic Resonance (NMR), Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Dynamic Laser Light Scattering (DLS) and Differential Scanning Calorimetry (DSC). The NMR 13C and FTIR techniques showed that both polymers were present in the microparticles and the DSC analysis revealed a small variation in the glass transition temperature of the PCL. The XRD and SEM analyses showed that the microparticles produced were amorphous and had a concave morphology. The NT-25 nanoload reduced the microparticles’ size due to the multiple interactions formed in the hybrid nanocomposite material. Therefore, it was possible to develop microparticles by using biodegradable and biocompatible polymers, with different polarities, allowing the incorporation of hydrophilic and hydrophobic materials and enabling the inclusion of otherwise incompatible materials in the same system.
A constru??o da identidade de sujeitos deficientes no grupo terapêutico-fonoaudiológico
Leite, Gabriela Almeida;Monteiro, Maria Inês Bacellar;
Revista Brasileira de Educa??o Especial , 2008, DOI: 10.1590/S1413-65382008000200004
Abstract: in this study, we consider the personality of our subjects as being shaped by means of their actions being interpreted by others. this happens via the internalization of roles. these roles are defined, in the first instance, by those persons who provide the most concrete reference points for the child, in particular their family, and beyond that by the wider social group to which they belong. our objective was to reflect upon the formation of the personal identity of mentally disabled young people who were receiving speech therapy, this therapy being conducted in a group context. transcripts of the language used by the subjects in constructing their self image were analyzed. this study was based upon the results obtained from previous research, conducted with groups of siblings of subjects classified as mentally disabled. these results revealed a negative image held by those siblings of their disabled brother or sister. the material analyzed is part of a data bank of videotapes, of disabled youngsters receiving group speech therapy in a school clinic setting, taken over a two year period. this data was transcribed and analyzed according to the guidelines of micro genetic analysis, taking into consideration minute details of interviews and in particular details and clips of interactive episodes. the examination of the data was directed towards the actions of the subjects of the study, their interpersonal relations and the social context in which these took place. the analysis conducted in this study aims to establish a relationship between the images these subjects have of themselves and the image put across by the social group to which they belong. the results demonstrated the resonance of the discourse of the social group in the verbalizations of the subjects. we conclude that to transform the image that the subjects with intellectual disability have of themselves it is necessary to direct actions to those who are close to them, namely family, friends, colleagues a
Estilo de vida, aspectos de saúde e trabalho de motoristas de caminh?o
Masson, Valéria Aparecida;Monteiro, Maria Inês;
Revista Brasileira de Enfermagem , 2010, DOI: 10.1590/S0034-71672010000400006
Abstract: epidemiological study with the purpose of identify the demographic characteristics, health aspects and life style, amongst truck drivers were applied to 105 drivers from supply center of campinas (fruit, vegetable, product wholesale market). the outcomes showed that all drivers interviewed were men, the majority were married, had kids, low study level and more than 30 years old. 54,2% reported abuse psychoactive drugs. the majority was aware of the importance of using condoms with casual partners; 47,5% reported relationship with casual partners and 86 always used condoms. although the small sample analyzed, the results suggests that must be implemented health promotion actions and illness prevention public politics, including the development of customized educational interventions with in this professional group.
Vulnerabilidade à Doen?as Sexualmente Transmissíveis/AIDS e uso de drogas psicoativas por caminhoneiros
Masson, Valéria Aparecida;Monteiro, Maria Inês;
Revista Brasileira de Enfermagem , 2010, DOI: 10.1590/S0034-71672010000100013
Abstract: a cross-sectional epidemiological descriptive study with the purpose of identify the demographic characteristics, health aspects and life style, vulnerability to sexually transmitted diseases/aids amongst long distance truck drivers were applied to 50 drivers from supply center of campinas (fruit, vegetable, product wholesale market). the outcomes showed that almost all drivers interviewed were men, the majority were married, had kids, low study level and fewer than 40 years old. 70% reported abuse psychoactive drugs. the majority was aware of the importance of using condoms with casual partners; 94% reported relationship with casual partners and just 6% never used condoms. although the small sample analyzed, the results suggests that must be implemented health promotion actions and illness prevention public politics, including the development of customized educational interventions with in this professional group.
Capacidade para o trabalho entre trabalhadores de um condomínio de empresas de alta tecnologia
Fernandes, ?ngela Cristina Puzzi;Monteiro, Maria Inês;
Revista Brasileira de Enfermagem , 2006, DOI: 10.1590/S0034-71672006000600006
Abstract: remarkable transformation occurred in the last two decades on the industrial sector, such as the use of trainees and outsourced labor. in a epidemiological cross-sectional study, 190 workers, aimed at assessing work ability and building up a socio-demographic life styles of workers, outsourced workers and trainees, who work at a corporate condominium comprising high technology companies. the work ability index was employed with a questionnaire concerning lifestyle and demographic data. gender balance was noticed, with a prevalence of youngsters and single people (63.2%). few were tobacco smokers (13.2%), 62.6% performed physical exercise. in addition, 44.2% were medically diagnosed with some illness. this study is very important due to their interchangeability and to the general lack of a worker's health service.
Capacidade para o trabalho de trabalhadores de empresa de tecnologia da informa??o
Monteiro, Maria Inês;Fernandes, Angela Cristina Puzzi;
Revista Brasileira de Enfermagem , 2006, DOI: 10.1590/S0034-71672006000500002
Abstract: cross sectional epidemiological study aimed to assess the work ability of workers at a telecommunications and information technology company. the work ability index (wai) developed by finnish researchers was used along with a questionnaire dealing with lifestyle and sociodemographic data. the study comprised 173 subjects, 60.1% male, average age 42.2 years, 78% married, 72.8% college graduates, 13.9% held a second job, 69.4% exercised regularly, only 12.1% were smokers and 50.3% drank alcoholic beverages. medically diagnosed diseases were reported by 66.5%. light mental illness was the most frequent. among the interviewees, work ability was moderate (9.2%), good (42.2%) and excellent (48.6%). the logistic regression model pointed out that workers who do not get physical exercise run 2.5 times more the risk of having a moderate/good wai.
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