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Search Results: 1 - 10 of 394169 matches for " I.S. Moreira "
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Linalool and methyl chavicol present basil (Ocimum sp.) cultivated in Brazil Linalol e metil-chavicol presentes em manjeric o (Ocimum sp.) cultivados no Brasil
R.A. de Oliveira,I.S. Moreira,F.F. Oliveira
Revista Brasileira de Plantas Medicinais , 2013,
Abstract: In Brazil, Ocimum species are commonly known as aromatic and restorative herbs. The present research aimed to study the chemical composition of the essential oils of fresh and dry basil (Ocimum sp) leaves obtained by hydrodistillation and analyzed by GC-FID and GC-MS. The obtained yield was 0.70% for dry leaves and 0.26% for fresh leaves. The major compounds were: linalool (29.50-32.26%) and methyl chavicol (36.81-41.62%). Eucalyptol could also be detected (9.99-7.68%). The oil from dry leaves presented a more complex chemical composition. This study serves to contribute to the knowledge of medicinal plants occurring in Brazil. No Brasil, as espécies de Ocimum s o conhecidas como ervas aromáticas e restaurativas. Nesse trabalho foi estudado a composi o química dos óleos essenciais das folhas frescas e secas de manjeric o (Ocimum sp) obtido por hidrodestila o e analisados por CG-FID e CG-EM. Os teores encontrados foram de 0,70% para as folhas secas e 0,26% para as folhas frescas. Os componentes majoritários foram: Linalol (29,50-32,26%) e metil-chavicol (36,81-41,62%). Eucaliptol também foi detectado (9,99-7,68%). O óleo das folhas secas apresentou composi o química mais complexa. Esse trabalho contribui para o conhecimento das plantas medicinais de ocorrência no Brasil.
Public health importance of lassa fever epidemiology, clinical features and current management review of literature
I.S. Abdulraheem
African Journal of Clinical and Experimental Microbiology , 2002,
Abstract: The public health importance of Lassa fever can not be over emphasized if one considers the high infectivity and mortality rates associated with the disease. This study dealt extensively on the epidemiology, clinical features and current management of Lassa fever through literature review. The aim of this study is to sensitise the public on what it needs to know on Lassa fever as well as updating the knowledge of health workers on current management of the disease and important precautive measures to take when handling a patient with Lassa fever. Strict barrier nursing, isolation, use of protective devices are important preventive measures when managing a patient with Lassa fever infection. As Lassa fever may have a long incubation period (Up to 20 days), it is possible that travellers from endemic areas may be incubating the disease. However, one case of Lassa fever entering a non-endemic area should not cause fear of an epidemic as long as correct infection control procedures are followed. (Af. J. of Clinical and Experimental Microbiology: 2002 3(1): 33-37)
Shift tests of cohesive soils under the various loading trajectories
I.S. Bondar
Magazine of Civil Engineering , 2012,
Abstract: In the article the results of tests of loams by static, dynamic and cyclic loads are given.Simple shift (cutting) is typical for soil deformation in natural conditions. At an increase of tangential stresses up to a limiting value the simple shift is completed by exhausting their strengths with break or without break of material uniformity. Shear strength is the basic strength parameter of soils in general and clay soils in particular. The estimation of shear strength of clay soils by tests in conditions of simple shift by static, dynamic and cyclic loads was considered. The diagrams of limiting state confirming the influence of low-frequency vibration on strength characteristics of cohesive soils were obtained.
Dabigatran etexilate for prevention of cardioembolic complications in nonvalvular atrial fibrillation: how to do the intervention more effective and safer
I.S. Yavelov
Rational Pharmacotherapy in Cardiology , 2011,
Abstract: Application of dabigatran etexilate for prevention of cardioembolic complications in nonvalvular atrial fibrillation is considered. Results of randomized clinical trials on efficacy and safety of dabigatran in various doses are discussed. Besides, a comparison of dabigatran and varfarin therapies is presented taking into account pharmacoeconomic data. Recommendations on dabigatran dosing are considered to do intervention more effective and safer.
Histoarchitectonics of a thyroid gland in the conditions of a blastomogenesis
Khripkov I.S.
Морфолог?я , 2012,
Abstract: Experiment has been supplied on 20 white rats-males in mass of 140-160 g to whom under a skin the tumoral strain of a Guerin’s carcinoma has been transplanted. The purpose of the real research was studying distant tumour influences on histotopography structural components of a thyroid gland. Distant influence of a tumour on a thyroid gland calls essential rearrangements of a stroma and a parenchima of an organ which are accompanied bydepression of functional activity thyro-cyties and reduction of quantity of haemocapillars of a stroma of an organ.
Status of adrenals at influence exogenous RNA in the conditions of the experimental blastomogenesis
Khripkov I.S.
Морфолог?я , 2011,
Abstract: The experimental research has been supplied on 70 white rats - males in mass of 140-160 to whom under a skin the tumoral strain of a carcinoma of Guerin has been transplanted. The operation purpose was learning of influence exogenous homologous tumoral RNA on a morfo-functional status of adrenals at animals with tumor. Tumour growth causes a strain of compensator mechanisms of adrenals at cellular level and is accompanied by response from a microcirculatory channel. Introduction exogenous homologous tumoral RNA an animal locks development of reactive changes in a parenchima and an organ stroma.
Proliferative activity of Guerin’s tumour cells under the action of homologic tumour rhibonucleic acids
Khripkov I.S.
Морфолог?я , 2008,
Abstract: Ability of exogenous rhibonucleic acids (RNAs) to penetrate into cells and to cause the phenotypic transformations, changing the character of metabolic process, was the reason for application of RNAs with the purpose of determined action on metabolism of tumour cells. The aim of our research was to study the influence of homologic tumour RNAs on proliferative activity of Guerin’s carcinoma cell. We used the transplantable tumor culture of Guerin’s carcinoma. RNAs was extracted by the method of thermal phenol fractioning. Radiolabeled nuclei index decreased for 40% after exogenous homological tumour RNAs treatment. It was accompanied by the decrease of packing tissues index for 15%. Thus, on the basis of analysis of experimental material we can conclude that exogenous homological tumour RNAs causes the decrease of DNA-producing cells number with the increase of atipism degree of Guerin’s carcinoma cells.
Assessment of Medical Waste Incinerator Performance Based on Physical Characteristics of Ashes  [PDF]
S.V. Manyele, I.S. Kagonji, J. Mrisho
Engineering (ENG) , 2011, DOI: 10.4236/eng.2011.310130
Abstract: The aim of this study was to assess the performance of the combustion process during medical waste incineration by studying physical properties of the ashes produced. Combustion characteristics data including maximum temperatures, total weight of waste loaded, weight of ashes, weight reduction, sieve analysis and particle size distribution were determined experimentally. The test runs were conducted in a newly installed incinerator at Temeke district hospital. The average maximum temperatures achieved in the primary chamber was 397.8℃and 839℃ for secondary chamber with average incineration cycle time of 99 minutes. These temperatures were lower compared to the design temperatures of 650℃ and 950℃ as a result of loading wet waste. The ash samples were collected under the incinerator grate by randomly sampling the ashes for each run after weighing the total ash. The particle size distribution of ashes observed was not uniform due to presence of non-combustible materials in the sharps waste. However, the fineness modulus ranged between 2.0 and 4.0, which is in the acceptable range. From the above results it was concluded that, the incinerator performance was high in terms of the parameters assessed. To improve the incinerator performance further, it was recommended that the medical waste should be stored in a dry place away from rain.
Journal of the Chilean Chemical Society , 2010, DOI: 10.4067/S0717-97072010000100016
Abstract: anodic electrooxidation of iodide in 0.1 mol l-1 tbap/ ch2c12 was studied electrochemically via cyclic voltammetry, convolution transforms voltammetry, chronoamperometry and chronopotentiometry techniques at a glassy carbon electrode (gce) at various temperatures ranging from -20 °c to 21 °c. it was found that at less positive potential triiodide (i-3) is formed followed by a moderate fast chemical process, while at more positive potential, the triiodide is oxidized to iodine (i2) followed by another chemical process, i.e ec1ec2 scheme. the effect of lowering the temperature on the heterogeneous electron transfer rate constant and the diffusion coefficient was discussed. the relevant chemical and electrochemical parameters of the electrode reaction were determined. the accurate test of the parameters evaluated experimentally was verified by comparing the experimental voltammograms with the simulated one.
Variabilidade entre isolados de Trichoderma harzianum: I - Aspectos citológicos
Peres, E.;Melo, I.S. De;
Scientia Agricola , 1995, DOI: 10.1590/S0103-90161995000100010
Abstract: this study is based largely on morphological and cultural characters of tríchoderma harzianum isolates. it were observed the size of phialospores, mycelial growth and sporulation on malt extract agar and nuclei number per phialospores, stained with giemsa. a x 100 oil immersion len was used in examining and in measuring phialospores. based on the size of phialospores, it was possible recognize that there is variaton among the wild isolates for the specie t. harzianum. also, with relation to mycelial growth and sporulation can itself distinguish from one another different pattern. up to 50% of isolates had maximum growth in 48 hours. the nuclei number of 1 to 3 per phialospore was observed.
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