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Search Results: 1 - 10 of 90147 matches for " José Luiz Dias; "
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Tratamento das cefaléias
Gherpelli, José Luiz Dias;
Jornal de Pediatria , 2002, DOI: 10.1590/S0021-75572002000700002
Abstract: objective: to perform a bibliographic review about headache treatment in childhood and adolescence. sources: articles were searched through medline database using the terms: migraine, or headache, childhood, or adolescence, and treatment, during the period between 1966 and 2001. review articles and case reports were excluded. only articles dealing with pharmacological, and non-pharmacological treatment of primary headaches were selected. summary of the findings: a total of 104 articles were found; only those reporting results of the case-control studies, or drug vs. placebo, either blind, or open, and that included children, or adolescents were selected. conclusions: only a few controlled studies about the headache treatment were found in the pediatric age group, although primary headaches are frequently seen in clinical practice. therefore they constitute an important subject to be studied. only a few drugs were adequately studied, and in a small number of studies. both acute and prophylactic treatment were addressed.
New Migraine Prophylactic Drug Options
Gherpelli José Luiz Dias
Revista do Hospital das Clínicas , 2002,
Migraine in childhood and adolescence: a critical study of diagnostic criteria and influence of age on clinical findings
Arquivos de Neuro-Psiquiatria , 1998,
Achados incomuns na ultra-sonografia de cranio no período neonatal: importancia clínica
Gherpelli José Luiz Dias
Jornal de Pediatria , 2002,
Glulam-concrete composites: experimental investigation into the connection system
Miotto, José Luiz;Dias, Antonio Alves;
Materials Research , 2011, DOI: 10.1590/S1516-14392011005000002
Abstract: timber-concrete composite structures work appropriately when a suitable connection system is included because the degree of interaction between the materials stiffs the structural system. thereby, it is extremely important to improve the knowledge about their connection system. the purpose of this paper is to show the results obtained by experimental investigation into push-out shear tests of glulam-concrete specimens. the specimens were designed to simulate the behaviour of composite t beams and the connection system was constituted by steel hooks - got by the division of steel bars used in reinforced concrete members - and by perforated steel plates, both glued with epoxy adhesive. they were tested under shear forces with constant loading rate. six specimens of each group were made, considering two different diameters for the hooks (8 and 10 mm) and 4.75 mm thick perforated steel plates. the stiffness reached by steel hooks confirms their suitability for the use in composite timber-concrete systems.
Comparison of chronological and corrected ages in the gross motor assessment of low-risk preterm infants during the first year of life
Restiffe, Ana Paula;Gherpelli, José Luiz Dias;
Arquivos de Neuro-Psiquiatria , 2006, DOI: 10.1590/S0004-282X2006000300013
Abstract: objective: to evaluate the need of chronological age correction according to the degree of prematurity, when assessing gross motor development in preterm infants, during the first year of life. method: cohort, observational and prospective study. alberta infant motor scale (aims) was used to evaluate 43 preterm infants with low risk for motor neurological sequelae, during the first year of corrected age. mean scores were analyzed according to chronological and corrected ages. children with motor neurological sequelae were excluded during follow-up. results: gross motor mean scores in preterm infants tended to be higher when corrected age was used compared with those obtained when using chronological age, during the first twelve months. at thirteen months of corrected age, an overlapping of confidence intervals between corrected and chronological ages was observed, suggesting that from that period onwards correction for the degree of prematurity is no longer necessary. conclusion: corrected age should be used for gross motor assessment in preterm infants during the first year of life.
A prospective randomized double blind placebo controlled crossover study of fluoxetine efficacy in the prophylaxis of chronic daily headache in children and adolescents
Gherpelli, José Luiz Dias;Esposito, Sandro Blasi;
Arquivos de Neuro-Psiquiatria , 2005, DOI: 10.1590/S0004-282X2005000400001
Abstract: thirty-two children (21 female and 11 male), between 7 and 14 years old, with chronic daily headache (cdh) were consecutively included in a prospective, randomized, double blind, placebo controlled crossover study. the patients were divided in group i (fluoxetine vs. placebo), with 17 patients and group ii (placebo vs. fluoxetine), with 15 patients. after one month of baseline headache frequency recording, the patients received fluoxetine in dosages from 0.25 to 0.50 mg/kg for three months. a wash out period of one month was followed by another three months treatment period. results showed a significant decrease in headache frequency in the study period [78% reduction in group i (p<0.025), and 45% reduction in group ii (p=0.025)]. gastrointestinal adverse effects were observed in nine patients (29%) that received fluoxetine, compared with 3 (10%), with placebo. we conclude that fluoxetine efficacy is not higher than placebo in the prophylaxis of cdh in children and adolescents.
Reinforcement and recovery of timber structures
José Luiz Miotto,Antonio Alves Dias
Semina : Ciências Exatas e Tecnológicas , 2006,
Abstract: Preservation of timber structures is a reason for constant concern because their deterioration often involves compromising the historical patrimony, besides endangering the safety of the structure, and consequently, of their users. Many are the examples of churches, residences or other constructions where this manifestation is a fact. The technique of reinforcing structurally endangered pieces with the addition of natural or synthetic fibers, is an alternative that has been researched. In the group of synthetic fibers, fiberglass, carbon and aramid ones are included. On the other hand, it has been frequent in the restoration of old buildings, especially in Europe, the employment of materials that were not available in the past, aiming to achieve structural, acoustic and aesthetic benefits. On an existing timber structure floor, a concrete slab has been carried out, with an appropriate connection system among the parts, constituting the composite timber-concrete structures. This alternative has been considered as extraordinarily viable, because it gathers a series of convenience related with the durability and it presents better mechanic performance than conventional timber structures. In this work, the state-of-the-art of the use of fibers as structural reinforcement and of the timber-concrete composite structures, is presented.
Mathematical Modeling of the Ester Oil-Refrigerant R134a Mixture Two-Phase Flow with Foam Formation Through a Small Diameter Tube
Dias, Jo?o Paulo;Gasche, José Luiz;Seixlack, André Luiz;
Journal of the Brazilian Society of Mechanical Sciences and Engineering , 2011, DOI: 10.1590/S1678-58782011000300007
Abstract: this work presents a mathematical modeling to study the ester oil iso vg-10-refrigerant r134a mixture two-phase flow with foam formation through a 3.22 mm id tube. based on experimental visualization results, the flow is divided into three regions: a single phase flow at the inlet of the tube; an intermediary bubbly flow region; and a foam flow region at the end of the tube. numerical results for mass flow rate, pressure and temperature distributions along the flow were compared with experimental data available in literature, showing good agreement. the major discrepancy between the mass flow rate data was about 21%. these results show that the mathematical modeling worked well for predicting the overall characteristics of the flow and can be generically used to other oil-refrigerant mixtures.
Influence of low environmental temperature on inflammation in bullfrog (Rana catesbeiana): qualitative and quantitative evaluation
CAT?O-DIAS, José Luiz;SINHORINI, Idércio Luiz;
Brazilian Journal of Veterinary Research and Animal Science , 1999, DOI: 10.1590/S1413-95961999000200004
Abstract: objectives of this study were to investigate the influence of low environmental temperature on the experimentally induced inflammatory response in post-metamorphic rana catesbeiana (bullfrogs). to accomplish these goals, 120 specimens of rana catesbeiana were kept at 6oc and 24oc, and treated by transfixion of thigh muscular tissue with a 5-0 suture or im carrageenan injection. results obtained through qualitative and quantitative evaluations showed that the lower environmental temperature significantly modulates the inflammatory process development. the animals in both models that were kept at 6oc showed a significantly lower number of inflammatory cells in the lesion site than the one verified at 24oc, apart from the evolution time. on the other hand, any factor related to the host mechanism of defense ought not to be blocked by the temperature, since the area of reaction to the injury showed to be equivalent in most of the studied time.
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