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A influência do ultrassom e do treinamento físico sobre os triglicérides séricos e intramusculares em ratos diabéticos experimentais
Dalia, Rodrigo Augusto;Guerino, Marcelo Renato;Parizotto, Nivaldo Antonio;Mello, Maria Alice Rostom de;Luicano, Eliete;
Revista Brasileira de Medicina do Esporte , 2011, DOI: 10.1590/S1517-86922011000200011
Abstract: therapeutic ultrasound is seen today as one of the most useful resources in the practice of clinical medicine and physical exercise is consolidated as an effective and efficient therapeutics in several cases; however, they are still little investigated when associated. therefore, the present work has as the aim to analyze the influences of ultrasound and physical exercise on serum and muscle triglycerides concentrations in experimental diabetes rats. adult wistar rats were used and divided in eight groups: sedentary diabetics (sd), trained diabetics (td), sedentary diabetic and ultrasound (sdus), trained diabetic and ultrasound (tdus), sedentary control (sc), trained control (tc), sedentary and ultrasound controls (sucs), trained control and ultrasound (tcus). the training protocol was composed of swimming exercise five days a week, 30 daily minutes and with maximum load of 8% of body mass during three weeks. the ultrasound therapy was performed five days a week, for two weeks, with intensity of 0.2w/cm2 and frequency of 1.0mhz. no significant differences were observed in the serum triglycerides or in the tibialis anterior and gastrocnemius muscles. concerning the soleus muscle, the diabetic groups showed lower concentrations compared to the control groups and td, and tdus groups showed lower concentrations compared to sd and sdsu, with the trained groups presenting the lowest concentrations. the pulsed ultrasound in the intensity investigated did not influence serum triglycerides or imtg. however, exercise was effective in reducing soleus muscle triglycerides.
Different Protocols of Physical Training: Effect on Markers of Oxidative Stress in Erythrocytes in Rats  [PDF]
Marcelo Costa-Junior, Wener Barbosa-Resende, Michel Barbosa de Araújo, Rodrigo Augusto Dalia, Leandro Pereira de Moura, Luciana Alves de Medeiros, Lucas Moreira Cunha, Eliete Luciano
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104411
Abstract:
The imbalance between oxidant molecules and antioxidant agents is characterized as oxidative stress (OS) and may lead to severe damage to the organism. In contrast, the physical training of aerobic and resistive character promotes increases of the antioxidant response, resulting in a balance and/or minimizing damage. Therefore, the objective of the study is to verify the effect of aerobic training, resistive training and concurrent training on oxidative stress of Wistar rats. Methods: To perform the experiment, 40 Wistar rats were subjected to eight weeks of training. The animals were distributed into 4 different groups: control, aerobic, resistive and concurrent (combination of aerobic and resistive protocols in the same section) an h/day, five days/week, for eight weeks. At the end of the experimental period: the antioxidant enzymes (catalase, glutathione peroxidase and superoxide dismutase), biomarkers of oxidative stress (TBARs and H2O2) as well as the activity of reduced and oxidized glutathione were analyzed. Results: Regarding the markers, TBARs and H2O2 trainings were not effective in promoting significant reduction. In contrast, the three training protocols caused an increase in SOD and GSH-GPx enzymes. Conclusion: Therefore, we concluded that both training protocols promoted benefit to the organism, because they caused the increase of antioxidant enzymes without disturbance in the pro-oxidant markers.
FILOSOFIA DE JOHN DEWEY E A EPISTEMOLOGIA PRAGMATISTA
Rodrigo Augusto de Souza
Revista Redescri??es : Revista on-line do GT de Pragmatismo e Filosofia Norte-Americana , 2010,
Abstract: Este trabalho tem por objetivo apresentar uma reflex o sobre osfundamentos do pensamento deweyano. Para uma compreens o das idéias de John Dewey (1859-1952), se faz necessário um estudo da epistemologia que permeia o seu pensamento. Sendo assim, esse estudo procura apresentar os fundamentos epistemológicos do pragmatismo deweyano. Para tanto, a obra de Dewey será entendida no contexto do pragmatismo norte-americano, no qual ele está inserido ao lado de Charles Peirce (1839-1914) e William James (1842-1910). O pensamento deweyano pode ser compreendido a partir de muitas perspectivas, uma vez que o filósofo norteamericano teve uma vasta produ o acadêmica, suas obras tratam especificamente de: filosofia, educa o, política, sociologia, arte e psicologia. As idéias de John Dewey possuem certas especificidades frente ao pragmatismo. Seu pensamento pode serentendido como um humanismo naturalista, ou ainda, como um naturalismo humanista. Essa reflex o pretende explicitar essas discuss es a partir do pensamento deweyano.This paper aims to present a reflection on the fundamentals of Deweyan thought. For an understanding of the ideas of John Dewey (1859-1952), it is necessary a study of epistemology thatpervades your thought. Therefore, this study seeks to present the epistemological foundations of Deweyan pragmatism. Therefore, the work of Dewey will be understood in the context of American pragmatism, in which it is inserted next to Charles Peirce (1839-1914) and William James (1842-1910). The Deweyanthought can be understood from many perspectives, as the American philosopher had a vast academic literature specifically dealing with their works: philosophy, education, politics, sociology, art andpsychology. The ideas of John Dewey have certain specific forward to pragmatism. Your thoughts could be understood as a naturalistic humanism, or even as a humanistic naturalism. This reflection aims toclarify these discussions from the Deweyan thought
Effects of physical training with different intensities of effort on lipid metabolism in rats submitted to the neonatal application of alloxan
Ribeiro Carla,Cambri Lucieli,Dalia Rodrigo,de Araújo Michel
Lipids in Health and Disease , 2012, DOI: 10.1186/1476-511x-11-138
Abstract: Background Type 2 diabetes mellitus (T2DM) is a chronic disease that is characterized by insulin resistance. Its development is directly connected with the inability of insulin to exert its action, not just on carbohydrate metabolism but also on primarily on lipid metabolism. The present study aimed to compare the effects of continuous, intermittent, and strength training on serum and tissue variables on the lipid metabolism of alloxan rats. Methods Wistar rats were divided into eight groups: sedentary alloxan (SA), sedentary control (SC), continuous training alloxan (CA), intermittent training alloxan (IA), strength training alloxan (StA), continuous training control (CC), intermittent training control (IC) and strength training control (StC). Alloxan (250 mg/kg bw) was injected into neonatal rats at 6 days of age. The continuous training protocol consisted of 12 weeks of swimming training for 1 uninterrupted hour / day, five days/ week, supporting a load that was 5% bw. The intermittent training protocol consisted of 12 weeks of swimming training with 30 s of activity interrupted by 30 s of rest, for a total of 20 min/day, five days/ week, supporting a load that was 15% bw. The strength-training protocol consisted of 12 weeks of training, five days/week with 4 sets of 10 jumps in water with 1 min rest between sets, supporting a load that was a 50% bw. Results At 28 days, the alloxan animals exhibited higher insulin resistance as measured by the disappearance of glucose serum (% Kitt/min) during the ITT. At 120 days, the sedentary alloxan animals showed higher FFA values than continuous and intermittent training alloxan. In addition, the alloxan animals that underwent intermittent and strength training showed lower FFA values compared to the corresponding controls. The continuous training protocol was less effective than the strength training protocol for reducing the levels of total cholesterol in the alloxan animals. Serum total lipid values revealed that intermittent training increased serum levels in alloxan animals Conclusion Thus, it was concluded that physical training at different intensities of effort is of great importance in attenuation and control of changes in the lipid metabolism in alloxan animals.
Synthesis, Characterization, Anti-Bacterial and Anti-Fungal Activities of New Quinoxaline 1,4-di-N-Oxide Derivatives  [PDF]
Dalia Hussein Soliman
International Journal of Organic Chemistry (IJOC) , 2013, DOI: 10.4236/ijoc.2013.33A007
Abstract:

A new series of quinoxaline 1,4-di-N-oxides were synthesized and evaluated for their antibacterial and antifungal activities. The best result was demonstrated by 3-amino-N-(4-methoxyphenyl)-2-quinoxalinecarboxamide 1,4-di-N-oxide 4e, MIC (0.24 μg/ml) against Aspergillus fumigatus, and (0.12 μg/ml) against Streptococcus pneumonia.

Inverse Bayesian Estimation of Gravitational Mass Density in Galaxies from Missing Kinematic Data  [PDF]
Dalia Chakrabarty, Prasenjit Saha
American Journal of Computational Mathematics (AJCM) , 2014, DOI: 10.4236/ajcm.2014.41002
Abstract:

In this paper, we focus on a type of inverse problem in which the data are expressed as an unknown function of the sought and unknown model function (or its discretised representation as a model parameter vector). In particular, we deal with situations in which training data are not available. Then we cannot model the unknown functional relationship between data and the unknown model function (or parameter vector) with a Gaussian Process of appropriate dimensionality. A Bayesian method based on state space modelling is advanced instead. Within this framework, the likelihood is expressed in terms of the probability density function (pdf) of the state space variable and the sought model parameter vector is embedded within the domain of this pdf. As the measurable vector lives only inside an identified sub-volume of the system state space, the pdf of the state space variable is projected onto the space of the measurables, and it is in terms of the projected state space density that the likelihood is written; the final form of the likelihood is achieved after convolution with the distribution of measurement errors. Application motivated vague priors are invoked and the posterior probability density of the model parameter vectors, given the data are computed. Inference is performed by taking posterior samples with adaptive MCMC. The method is illustrated on synthetic as well as real galactic data.

Metabolic syndrome markers in wistar rats of different ages
Ana Ghezzi, Lucieli Cambri, José Botezelli, Carla Ribeiro, Rodrigo Dalia, Maria Alice de Mello
Diabetology & Metabolic Syndrome , 2012, DOI: 10.1186/1758-5996-4-16
Abstract: Metabolic syndrome is characterized by a combination of risk factors for cardiovascular disease and diabetes that are generally linked to insulin resistance and central obesity [1]. Cardiovascular disease is the leading cause of morbidity and mortality in the world [2]; therefore, the study of metabolic syndrome as a predictor of cardiovascular problems is critical.Aging correlates with an increase in the prevalence of cardiovascular disease, which is a health concern, especially because of increases in the life expectancy of the world population. The aging of the world population has caused concerns about the balance of the age pyramid. Studies have estimated that the proportion of people over 65 years of age, which was 5.2 % in 1950, will increase to 15.6 % in 2050; thus, the elderly will represent one fifth of the world population [3].The prevalence of metabolic syndrome in the population of the United States is 20-25 % and close to 55 % for the elderly [4]. In Brazil, a metabolic syndrome prevalence of 52.3 % was observed in the elderly; however, due to different definitions for metabolic syndrome, the prevalence may differ among studies [3].The most commonly used definition for metabolic syndrome is the one given by the World Health Organization (WHO), which requires the presence of diabetes or insulin resistance and two of the following characteristics: a high waist/hip ratio, a high concentration of triglycerides or a low concentration of HDL cholesterol, increased blood pressure and urinary excretion of albumin [5].Research using animal models that develop a complete case of metabolic syndrome, including all of the above mentioned risk factors, are rare. Studies have demonstrated that the Wistar Ottawa Karlsburg (WOKW) line of rats develops a complete case of metabolic syndrome that includes obesity, moderate hypertension, dyslipidemia, glucose intolerance, and hyperinsulinemia [6].Another circumstance that leads to the manifestation of metabolic syndrome sy
Invas?o de áreas de savana intra-amaz?nicas por Digitonthophagus gazella (Fabricius, 1787) (Insecta: Coleoptera: Scarabaeidae)
Matavelli, Rodrigo Augusto;Louzada, Julio Neil Cassa;
Acta Amazonica , 2008, DOI: 10.1590/S0044-59672008000100017
Abstract: this work aimed to verify the invasion of the dung beetles community from intra-amazonian savanna by the african species digitonthophagus gazella (fabricius 1787). the research was carried out near alter do ch?o village (2o 31' s; 55o 00' w), 36 km southwest of santarém, pará, brazil. twenty two areas were sampled, from 21 july to 13 august 2003, using 66 baited pitfall traps (cattle dung, human faeces and carcass bait). d. gazella individuals were found in four of twenty two sampled areas. the presence of the species in the savanna was analysed by a logistic regression, using the occurrence of burnings in the last six years, species richness and abundance of native scarabaeinae, and abundance of canthon sp1, (the most abundant species in the region), as explanatory variables. except for the total abundance of native scarabaeinae, none of the variables were statistically significant for the presence of d. gazella. hypothetically, these results were probably due to a non-analysed factor related to the invasibility of the area by d. gazella, or lack of time for the species to disperse and establish in all the areas, or a resistance of native dung beetle community to d. gazella invasion. nevertheless, there must be a competitive mechanism of invasion resistance bounding the abundance of native species and d. gazella invasibility.
Capacidade de reten??o de barreiras de prote??o produzidas com solo arenoso estabilizado quimicamente
Rizzo, Rodrigo Pelho;Lollo, José Augusto de;
Engenharia Sanitaria e Ambiental , 2006, DOI: 10.1590/S1413-41522006000300008
Abstract: in this article we describe retention capability of barriers produced with soil-cement (7% in weight) and soil-lime (8% in weight) subjected to organic (leachate and wastewater) and inorganic solutions (k+, na+ e cl- solutions with 100ppm concentrations) leaching. laboratory tests were conduced with two specimen types: miniature specimens with 5cm high and diameter, and column (25cm high and 7cm diameter). obtained results show good retention for organic solutions and promising retention for inorganic solutions.
Expans?o e mortalidade de ramos em espécies arbóreas do cerrado sensu stricto
Rossatto, Davi Rodrigo;Franco, Augusto César;
Brazilian Journal of Botany , 2008, DOI: 10.1590/S0100-84042008000400016
Abstract: the study of shoot growth and mortality provide essential information on tree growth dynamics. this study shows the patterns of growth and mortality in shoots of ten common tree species in a "cerrado" sensu stricto. mean annual branch growth was variable among the species and ranged from 1 to 17 cm per year. miconia pohliana cogn. and vochysia thyrsoidea pohl were the ones with the highest rates of branch growth. most shoot mortality took place during the dry season. in conclusion, shoot loss is a very common phenomenon in "cerrado" tree species and their impacts on productivity studies and growth analysis should be considered.
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