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Search Results: 1 - 10 of 224234 matches for " R. Saldanha "
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Recurrent respiratory papillomatosis complicated by aspergillosis: A case report with review of literature
Kuruvilla S,Saldanha R,Joseph L
Journal of Postgraduate Medicine , 2008,
Abstract: Pulmonary extension of recurrent invasive papillomatosis often poses a diagnostic challenge to the examining bronchoscopist, pathologist, radiologist and surgeon, in distinguishing it as a benign lesion that is confined to the mucosa and extending along the branches of the tracheobronchial tree from true invasion of a malignant tumor. We document here a case of recurrent invasive respiratory papillomatosis which initially presented as a laryngeal papilloma. After multiple recurrences, the patient presented with bronchopulmonary involvement, complicated by invasive aspergillosis in a non-immunocompromised setting.
Coronary Artery Disease: A Descriptive Analysis of Risk Factors: Before and After Treatment
S Dinkar, Suresh Rao, M Vakamudi, R Saldanha, KR Balakrishnan
National Journal of Community Medicine , 2010,
Abstract: With the increasing life span of man, the number of ageing people is also increasing, and along with that the number of diseases affecting them is also increasing. Atherosclerotic coronary artery disease is one of them. Coronary revascularization was started in 1960s through the pioneering efforts of David Sabiston and Kolessov. This is a retrospective descriptive study. A total number of 1050 Patients were operated on beating heart surgery from 1998 to Nov. 2002 out of which 852 patients were analysed to know the results and prognostic outcomes. Mean age was 57.8 years (range 31 - 80years) with M:F ratio of 7:1. The pre-operative parameters studied were DM, HTN, hyperlipidemia, family history of CAD, smoking and past history of MI. other parameters included pulmonary disease, chronic renal failure, CVA, APD, PVD etc. 55.75% patients were diabetic, 53.99% were hypertensive and 24.4% had history of hyperlipidemia. Family history was positive in 12.9% of the patients, 25% were smokers and 44% had history of previous MI. average number of diseased vessels was 2.34 with triple vessel disease being most common. 6.6% had history of pulmonary diseases, 7.4% had pre-operative renal failure and 2% had past history of CV stroke. Overall in-hospital mortality was 1.4%. relative risk for mortality, morbidity, new onset of renal failure, CVA, arrhythmias, CCF were calculated. Mean hospital stay was 9.83days (range 6 - 41years), mean ICU stay was 74.3 hours (range 73 - 700years). Usage of blood and blood products was significantly less. Freedom from complications was 93%. LVEF<40%, age >70 years, high diastolic PA pressure> 15mm Hg were found to be significant risk factors for mortality. Females were found to be 2.6 times more at risk for mortality and development of complications as compared to males. Patients with previous history of MI were found to be more at risk of developing complications increasing their hospital and ICU stay.
Superheavy nuclei with the vector self-coupling of the $ω$-meson in the relativistic mean-field theory
A A Saldanha,A R Farhan,M M Sharma
Physics , 2009, DOI: 10.1088/0954-3899/36/11/115103
Abstract: We have studied properties and shell structure of the superheavy elements from Z=102 to Z=120 within the framework of the RMF theory. The region of study spans nuclides with neutron numbers N=150-190. The Lagrangian model NL-SV1 with the inclusion of the vector self-coupling of the omega-meson has been employed in this work. We have performed RMF + BCS calculations for an axially deformed configuration of nuclei. The ground-state binding energies, single-particle properties and quadrupole deformation of nuclei have been obtained from the mean-field minimizations. Two-neutron separation energies, $Q_\alpha$ values and alpha-decay half-life have been evaluated. It is shown that a large number of nuclides exhibit the phenomenon of shape-coexistence over a significant region of the superheavy elements. Shape coexistence of a prolate and an oblate shape is prevalent in nuclides far below N=184, whilst nuclei in the vicinity of N=184 tend to show a shape coexistence between a spherical and an oblate shape. The shell structure and 2-neutron separation energies obtained with the RMF theory reinforce the neutron number N=184 as a major magic number. It is shown that the neutron number N=172 acts akin to a magic number in the deformed region. It is suggested that the combination Z=120 and N=172 has the potential of being a doubly magic number in the superheavy region.
A Second Chance: The University of Cape Town's Diploma in Education
June Saldanha
Gateways : International Journal of Community Research & Engagement , 2009,
Abstract: This paper describes a curriculum that gives men and women from predominantly black working class communities a second chance to acquire a formal qualification at a higher education institution in South Africa. The curriculum provides the space for adult students to think critically about themselves and their practice and to develop a confident voice to express themselves. Through this process they develop both learner and educator identities and begin to see how the two intersect. The paper gives some of the historical background of the course, and shows how lecturers who have taught on the programme at different times have helped shape the curriculum. It goes on to discuss the changing nature of the student intake, the curriculum content and structure and ends with a discussion of the impact of the course, on students, staff and on the university as a whole. One very visible impact of the diploma is to be seen in the students who have gone on to acquire other postgraduate qualifications in adult education studies. On a university-wide level, through the involvement of adult education lecturers in other programmes and curricula, knowledge of and interest in adult learning is shared and encouraged.
DDT in fishes and soils of lakes from brazilian Amazon: case study of puruzinho lake (Amazon, Brazil)
Saldanha, Giselle C.;Bastos, Wanderley R.;Torres, Jo?o Paulo M.;Malm, Olaf;
Journal of the Brazilian Chemical Society , 2010, DOI: 10.1590/S0103-50532010000200016
Abstract: ddt concentrations had been quantified in fishes and at 20 points along the "puruzinho" lake. the determination of pollutants in the samples consisted in four consecutive steps: extraction, clean-up, fractionation and automatic injection in high resolution gas chromatography coupled to an electron capture detector. the σddt results in fishes (ng g-1 dry weight) ranged from 0.3 to 71.4. the concentrations of σddt on house soils varied from 2.0 to 55.4 ng.g-1 while forest soils the obtained values were between 1.6 e 13.3 ng g-1. the shapiro-wilk test showed that the distribution was not normal for both the results of the soil of the houses (p < 0.001) as well as for the forest soils (p < 0.007). the u test of mann-whitney reveled that there were no significant difference between the results obtained for both houses and forest soils (p > 0.290).
Petrov-Galerkin approximation for advective-diffusive heat transfer in saturated porous media
Frey,S.; Martins-Costa,M. L.; Saldanha Da Gama,R. M.;
Latin American applied research , 2008,
Abstract: this article studies the heat transport in a flow through a saturated rigid porous medium. the mechanical model is based on the continuum theory of mixtures which considers the fluid and the porous matrix as overlapping continuous constituents of a binary mixture. a petrov-galerkin formulation is employed to approximate the resulting system of partial differential equations, overcoming the classical galerkin method limitation in dealing with advective-dominated flows. the employed method is built in order to remain stable and accurate even for very high advective-dominated flows. taking advantage of an appropriated upwind strategy, the applied finite element method proved to generate accurate approximations even for very high péclet regime. some two-dimensional simulations of the advective-diffusive heat transfer in a flow through a porous flat channel employing lagrangean bilinear and serendipity biquadratic elements have been performed attesting the reliability of the employed petrov-galerkin formulation as well as the poor performance of galerkin one even when mesh refining is considered.
Petrov-Galerkin approximation for advective-diffusive heat transfer in saturated porous media
S. Frey,M. L. Martins-Costa,R. M. Saldanha Da Gama
Latin American applied research , 2008,
Abstract: This article studies the heat transport in a flow through a saturated rigid porous medium. The mechanical model is based on the Continuum Theory of Mixtures which considers the fluid and the porous matrix as overlapping continuous constituents of a binary mixture. A Petrov-Galerkin formulation is employed to approximate the resulting system of partial differential equations, overcoming the classical Galerkin method limitation in dealing with advective-dominated flows. The employed method is built in order to remain stable and accurate even for very high advective-dominated flows. Taking advantage of an appropriated upwind strategy, the applied finite element method proved to generate accurate approximations even for very high Péclet regime. Some two-dimensional simulations of the advective-diffusive heat transfer in a flow through a porous flat channel employing lagrangean bilinear and serendipity biquadratic elements have been performed attesting the reliability of the employed Petrov-Galerkin formulation as well as the poor performance of Galerkin one even when mesh refining is considered.
Estudo comparativo entre estibogluconato de sódio BP 88 e antimoniato de meglumina no tratamento da leishmaniose cutanea II. Toxicidade bioquímica e cardíaca
Saldanha Ana Cristina R.,Romero Gustavo Adolfo Sierra,Guerra Concei??o,Merchan-Hamann Edgar
Revista da Sociedade Brasileira de Medicina Tropical , 2000,
Abstract: Foi avaliada a toxicidade de dois antimoniais pentavalentes em 111 pacientes com leishmaniose cutanea. Quarenta e sete pacientes receberam antimoniato de meglumina (Grupo I) e 64 pacientes, estibogluconato de sódio BP 88 (Grupo II), 20mg SbV/kg/dia por 20 dias. Realizou-se a avalia o de aminotransferases, fosfatase alcalina, amilase, creatinina, uréia, exame de urina e eletrocardiograma, antes do tratamento e no décimo e vigésimo dias. Observou-se maior freqüência de valores anormais de aminotransferases no décimo e vigésimo dias de tratamento no grupo II (p < 0,001) e maior propor o de valores anormais de amilase no décimo dia no mesmo grupo (p < 0,001). Houve maior varia o dos níveis de aminotransferases, fosfatase alcalina e amilase nos primeiros dez dias no grupo II (p < 0,01). No vigésimo dia observou-se maior varia o nos níveis de aminotransferases no grupo II (p = 0,02 e p = 0,03, respectivamente). Quarenta e três porcento dos pacientes do grupo I e 54% dos pacientes do grupo II apresentaram altera es eletrocardiográficas (p = 0,30).
AN UNUSUAL CLINICAL PRESENTATION OF GROUP A STREPTOCOCCAL INFECTION
Prashanth H V,Saldanha Dominic R. M.,Shalini Shenoy,Shrikala Baliga
International Journal of Biomedical and Advance Research , 2011, DOI: 10.7439/ijbar.v2i11.94
Abstract: After two decades of decline of Group A streptococcal infections, the recent years are witnessing a resurgence in the incidence and severity of infections caused by Group A Streptococcus including necrotizing fasciitis and streptococcal toxic shock syndrome sometimes with fatal outcomes. We present an unusual case of Group A streptococcal infection in a 4-year-old boy who did not have any predisposing factors for Group A streptococcal infection.
PREEXERCISE URINE SPECIFIC GRAVITY AND FLUID INTAKE DURING ONE-HOUR RUNNING IN A THERMONEUTRAL ENVIRONMENT - A RANDOMIZED CROSS-OVER STUDY
Rafael P. Silva,Toby Mündel,Janaína L. Altoé,M?nica R. Saldanha
Journal of Sports Science and Medicine , 2010,
Abstract: Urine specific gravity is often used to assess hydration status. Athletes who are hypohydrated prior to exercise tend to ingest more fluid during the exercise, possibly to compensate for their pre exercise fluid deficit. The purpose of this study was to evaluate the effect of additional fluid intake on fluid balance and gastrointestinal tract comfort during 1h running in a thermoneutral environment when athletes followed their habitual fluid and dietary regimes. Sixteen men and sixteen women ingested a 6% carbohydrate-electrolyte solution immediately prior to exercise and then every 15 minutes during two runs, with a consumption rate of 2 mL.kg-1 (LV, lower volume) or 3 mL.kg-1 (HV, higher volume) body mass. Urine specific gravity and body mass changes were determined before and after the tests to estimate hydration status. During exercise subjects verbally responded to surveys inquiring about gastrointestinal symptoms, sensation of thirst and ratings of perceived exertion. Plasma glucose, heart rate and blood pressure were also evaluated. Men had higher preexercise urine specific gravity than women (1.025 vs. 1.016 g·mL-1 HV; and 1.024 vs. 1.017 g·mL-1 LV) and greater sweat loss (1.21 ± 0.27 L vs. 0.83 ± 0.21 L HV; and 1.18 ± 0.23 L vs. 0.77 ± 0.17 LV). Prevalence of gastrointestinal discomfort increased after 45 min. No significant differences on heart rate, rate of perceived exertion, blood pressure or glycemia was observed with the additional fluid intake. From these results it appears that additional fluid intake reduces body mass loss and thirst sensation. When compared to the men, however, preexercise euhydration was more common in women and an increased fluid intake increases the risk of body mass gain and gastrointestinal discomfort
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