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Search Results: 1 - 10 of 14899 matches for " Vinícius Diniz Arcelino do Ceará "
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Microalbuminuria and Kidney Disease Risk in HIV Patients Taking Combined Antiretroviral Therapy  [PDF]
Huylmer Lucena Chaves, Mayanna Pinho Batista, Adriana de Menezes Gomes, Amanda Antunes Costa, André Tigre Lima, Vinícius Diniz Arcelino do Ceará, Pedro Rubens Araújo Carvalho, Linna Albuquerque Sampaio, Fabrício de Maicy Bezerra, Melissa Soares Medeiros
World Journal of AIDS (WJA) , 2014, DOI: 10.4236/wja.2014.42029
Abstract:

Objectives: This study proposes to evaluate risk factors for kidney disease in HIV patients treated chronically and correlate with microalbuminuria measurements. Methods: Review charts and analyses of microalbuminuria in subgroup of HIV patients treated at Ceara/Brazil. Results: 149 patients, 69.1% male, mean 38.5 years old, infection mean 86.8 months. Mean Creatinine Clearance 110.2%, Creatinine 0.97, Urea 27.76 mg/dl, CD4+ 600.37 cels/mm3 and detectable viral load 530.59 copies with 61.7% undetectable. Mean Dosages of microalbuminuria/24h 147, 46 ± 820, 45 (N = 48) and microalbuminuria (mg/dl) 32.05 ± 85.25 (N = 43). Kidney Diseases Classification analyses evidenced 6.4% patients in stages ≥3 and 6.2% presented altered Microalbuminuria/24h. Patients using Tenofovir (TDF) 27.27% had Stage 2 and protease inhibitors (PI) had 4.1% in Stage 3. Proteinuria was observed in 5% stage ≥3. Association PI/TDF had 4.1% in Stage 3. No statistical difference between CD4 > or < 350 cels/mm3 and microalbuminuria/24h > 300 mg (p = 0.69); detectable/undetectable viral load and microalbuminuria/24h (p = 0.63) or stage ≥3 (p = 0.17); relation to Diabetes or arterial hypertension and microalbuminuria 24 h (p = 0.5 and p = 0.21); relation stage ≥3 and microalbuminuria/24h (p = 0.33); relation HIV diagnoses >/< 60 months and stage ≥3 (p = 0.51); or microalbuminuria/24h and TDF (p = 0.4), PI (p = 1), TDF/PI (p = 0.69), Atazanavir (p = 0.4) or Lopinavir/r (p = 1) regimens. There was statistical significance comparing age > or < 50 years and stage ≥3 (p = 0.001) without difference with age > or < 50 years and microalbuminuria/24h (p = 0.55) or microalbuminuria mg/d (p = 0.32). Relating comorbidities risk (Diabetes Mellitus plus Systemic Arterial Hypertension) to Kidney Diseases, it was found that 55.5% patients in Stage 3 or above with comorbidities compared with 15% with comorbidities in lower stages (P = 0.005).

Water consumption of the estevia (Stevia rebaudiana (Bert.) Bertoni) crop estimated through microlysimeter
Fronza, Diniz;Folegatti, Marcos Vinícius;
Scientia Agricola , 2003, DOI: 10.1590/S0103-90162003000300028
Abstract: the knowledge of water requirement of crops in the different growing phases elicits higher crop yield and rational use of water resource. the aim of this work was to estimate the water consumption of stevia using two constant watertable microlysimeters. the research was conducted in san piero a grado, pisa, italy. the data were collected daily from june, 1st, to october, 22th, 2000. reference evapotranspiration was determined by the penman-monteith-fao method, in the same period. microlysimeters watertables level were maintained at the 35 cm depth. crop evapotranspiration for the total cicle (80 days) was 464 mm. for the most water consuming phase, crop average evapotranspiration was 5.44 mm day-1. the crop coefficient values were 1.45 for the first 25 days, 1.14 for the next period (26 to 50 days), and 1.16 for the latest period (51 to 80 days). the stevia leaf yield of the microlysimeters was 4.369 kg ha-1 and their steviosideo content 6.49%.
Water consumption of the estevia (Stevia rebaudiana (Bert.) Bertoni) crop estimated through microlysimeter
Fronza Diniz,Folegatti Marcos Vinícius
Scientia Agricola , 2003,
Abstract: The knowledge of water requirement of crops in the different growing phases elicits higher crop yield and rational use of water resource. The aim of this work was to estimate the water consumption of stevia using two constant watertable microlysimeters. The research was conducted in San Piero a Grado, Pisa, Italy. The data were collected daily from June, 1st, to October, 22th, 2000. Reference evapotranspiration was determined by the Penman-Monteith-FAO method, in the same period. Microlysimeters watertables level were maintained at the 35 cm depth. Crop evapotranspiration for the total cicle (80 days) was 464 mm. For the most water consuming phase, crop average evapotranspiration was 5.44 mm day-1. The crop coefficient values were 1.45 for the first 25 days, 1.14 for the next period (26 to 50 days), and 1.16 for the latest period (51 to 80 days). The stevia leaf yield of the microlysimeters was 4.369 kg ha-1 and their steviosideo content 6.49%.
A Bayesian hidden Markov mixture model to detect overexpressed chromosome regions
Vinícius Diniz Mayrink,Flávio Bambirra Gon?alves
Statistics , 2015,
Abstract: In this study, we propose a hidden Markov mixture model for the analysis of gene expression measurements mapped to chromosome locations. These expression values represent preprocessed light intensities observed in each probe of Affymetrix oligonucleotide arrays. Here, the algorithm BLAT is used to align thousands of probe sequences to each chromosome. The main goal is to identify genome regions associated with high expression values which define clusters composed by consecutive observations. The proposed model assumes a mixture distribution in which one of the components (the one with the highest expected value) is supposed to accommodate the overexpressed clusters. The model takes advantage of the serial structure of the data and uses the distance information between neighbours to infer about the existence of a Markov dependence. This dependence is crucially important in the detection of overexpressed regions. We propose and discuss a Markov chain Monte Carlo algorithm to fit the model. Finally, the proposed methodology is used to analyse five data sets representing three types of cancer (breast, ovarian and brain).
Intermodal Competition in the Brazilian Interstate Travel Market
Frederico Ara?ojo Turolla,Mois??s Diniz Vassallo,Alessandro Vin?-cius Marques de Oliveira
Revista de Análisis Económico (RAE) , 2008,
Abstract: This paper presents a test of intermodal interaction between coaches and airlines in Brazil in order to check for the efficacy of recent liberalization measures designed to promote competition in both industries. Interstate travel service in the country is heavily provided by coaches, and the system is fully operated by the private sector under public delegation through permits and authorizations. Agency-based regulation was introduced in 2002 along with a price cap regime aimed at enhancing the flexibility to change fares in response to demand and cost conditions. By making use of a reaction function-based model of coach operators’ pricing decisions in the interstate travel market, we then estimate the sensitivity of the changes in coach fares to the changes in airline fares in a simultaneous-equation framework. Intermodal interaction among coach operators and airlines is found to be highly significant and probably due to the competition for a small but increasing set of premium, quality-sensitive, coach passengers.
Physicochemical and Sensory Characterization of Banana and Araçá-Boi Jam  [PDF]
Eliseth de Souza Viana, Jaciene Lopes de Jesus, Ronielli Cardoso Reis, Marcos Vinícius Silva de Andrade, Celio Kersul do Sacramento
Food and Nutrition Sciences (FNS) , 2014, DOI: 10.4236/fns.2014.58083
Abstract:

This study evaluated the physicochemical and sensory properties of mixed jam elaborated with banana and ara?á-boi. Four banana extract (BE) and ara?á-boi (AB) jams were prepared using the following proportions: F1 (70% BE:30% AB), F2 (60% BE:40% AB), F3 (40% BE:60% AB) and F4 (30% BE:70% AB). The jams were analyzed for physicochemical and sensory properties. The sensory acceptance test was performed by 50 panelists who were asked to indicate how much they liked/ disliked the jams based on the following attributes: color, aroma, flavor and texture. The formulations that contained more BE (F1 and F2) showed a lower titratable acidity (TA), higher ratio (SS/TA) and higher total sugar. A global analysis of the internal preference mapping verified that formulations F1 and F2 were preferred for flavor and had good acceptance levels for the other evaluated attributes, which indicated that the consumers favored jams with lower concentrations of AB and higher concentrations of BE. The formulation F1 was considered the most accepted for all attributes evaluated and showed high purchase intent (68%), and was therefore appropriate for industrialization and consumption.

Applicability of the Method of Linear Dimensions to Estimate Leaf Area in Improved Genotypes of Coffea arabica and Coffea canephora  [PDF]
Sebasti?o Vinícius Batista Brinate, Wagner Nunes Rodrigues, Lima Deleon Martins, Tafarel Victor Colodetti, Marcelo Antonio Tomaz, José Francisco Teixeira do Amaral
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.65070
Abstract: There are different methods to determinate leaf area in coffee plants; however, methodologies that allow measurement of leaf area accurately and in nondestructive ways are very important, as they are less economically costly and enable measurements on the same leaf over time, making it possible to describe accurate patterns of growth. The objective of this study was to investigate the applicability of the method to estimate leaf area using linear dimensions of leaves for improved genotypes of Coffea arabica L. and Coffea canephora Pierre ex A. Froehner. The experiment was conducted in two separated competition fields, each one following factorial schemes 10 × 2, with 10 genotypes and 2 methods to obtain the leaf area: measuring linear dimensions, and using equation model (estimated leaf area) and leaf area integrator (real leaf area). The genotypes for both Coffea arabica L. and Coffea canephora Pierre ex A. Froehner have different leaf areas, making it possible to discriminate groups of genotypes for both species using the size of their leaves as classification criteria. Even with the differences between genotypes, the pattern of leaf shape remains similar, confirming the applicability of the method to estimate leaf area using linear dimensions of leaves for improved genotypes, such as the model proposed by Barros, without the occurrence of loss of accuracy for the improved genotypes, for both Arabica and Conilon coffee, studied in this experiment.
Evaluation of Some Biological Aspects of the Presence of Abrasive Silica and Thickening Silica ?in Basic Formulations of Dentifrices
Pedrazzi,Vinícius; Del Ciampo,José Orestes; do Nascimento,Cássio; Issa,Jo?o Paulo Mardegan;
International Journal of Morphology , 2009, DOI: 10.4067/S0717-95022009000100028
Abstract: the aim of this study was to evaluate some biological characteristics and toxicity of basic formulations of dentifrices containing such substances, and to compare them with two existing products in market which also contains silic in their formulations. in this way, it was evaluated some biological parameters: weight of the animals, oral toxicity, hematological parameters, urinary analysis, and histological evaluation. the thrombocytes were also statistically at normal levels. the glutamate-pyruvate transaminase (tgp) showed normal aspect in 5 of the tested groups, as in control. meanwhile, the oxalacetic transaminase (ast) in one group had a small increase in the control group. regarding urine, in exception the rats of one group, the rats of the 4 other experimental groups showed leukocytosis urinary statistically higher than the control group. the histological evaluation of the animals showed that specimens from liver, stomach, kidney and submandibular gland presented normal aspects for these organs, without significant characteristics related to inflammatory infiltrates in any of the 6 samples tested in their respective groups.
Chronic Temporomandibular Pain Treatment Using Sodium Diclofenac
Kurita Varoli,Fernando; Sato,Sandra; Sucena Pita,Murillo; do Nascimento,Cássio; Pedrazzi,Vinícius;
International journal of odontostomatology , 2012, DOI: 10.4067/S0718-381X2012000200005
Abstract: this study evaluate spontaneous pain after and before administration of sodium diclofenac, isolated or associated to carisoprodol, acetaminophen and caffeine, in chronic temporomandibular disorders (tmd) patients. were selected eighteen volunteers, both men and women, between 35-70 years of age (mean age 50 years). the inclusion criteria was masticatory muscle pain, and the research diagnostic criteria for temporomandibular disorders (rdc/tmd) was used on the diagnose. the selection of treatment for each individual was done by a triple-blind full-randomized crossover methodology. thus, all patients were submitted to all treatment at different moments, in a non standardized sequence, avoiding tendentious results. the treatments were: a (sodium diclofenac + carisoprodol + acetaminophen + caffeine), b (sodium diclofenac) and c (placebo), all associated with an occlusal splint. each treatment period was followed by an eleven-day washout. there weren't observed differences between initial and final values of treatments. however, there were statistically significant differences in evaluative and miscellaneous sensorial groups after b treatment; and in sensorial, affective, and total score groups after b and c treatments. within the limitations of this investigation, we conclude that treatment of muscular tmd patients with sodium diclofenac isolated promoted higher analgesia than treatment with sodium diclofenac more associations or placebo, when associated to an occlusal splint.
Acurácia dos achados mamográficos do cancer de mama: correla??o da classifica??o BI-RADS e achados histológicos
Nascimento, José Hermes Ribas do;Silva, Vinícius Duval da;Maciel, Ant?nio Carlos;
Radiologia Brasileira , 2010, DOI: 10.1590/S0100-39842010000200008
Abstract: objective: the present study was aimed at evaluating the bi-rads? classification accuracy in mammography. additionally, the frequency of different findings was described and the interobserver agreement was evaluated. materials and methods: mammographic images of 115 patients were independently and blindly reviewed by two specialists in compliance with bi-rads recommendations, and later compared with histological data. the bi-rads accuracy in mammography was evaluated. the interobserver agreement was analyzed with the cohen's kappa (κ) test, and the differences between groups were evaluated with the chi-squared test. results: the present study demonstrated that the mammographic accuracy ranged from 75% to 62% in the differentiation between benign and malignant lesions with the utilization of the bi-rads classification. statistically significant interobserver agreement was observed in the description of masses margins (κ= 0.66). a low agreement rate was identified in the description of masses borders (shape) (κ= 0.40) and calcifications, both in relation to their distribution (κ= 0.24) and morphology (κ= 0.36). conclusion: the present study demonstrated the bi-rads accuracy in the differentiation between benign and malignant lesions. the interobserver agreement was poor in the analysis of calcifications morphology and distribution, but a progressive increase in the positive predictive values was observed in the subcategory 4.
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