Instituto Federal Do Norte Of Minas Gerais Ifnmg

Januária, Brazil

Instituto Federal Do Norte Of Minas Gerais Ifnmg

Januária, Brazil
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Mendonca D.G.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Teixeira G.L.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Lima J.F.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Escobar S.A.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Gusmao C.A.,Instituto Federal Do Norte Of Minas Gerais Ifnmg
IMSCI 2016 - 10th International Multi-Conference on Society, Cybernetics and Informatics, Proceedings | Year: 2016

This paper aims to analyze the use of technology in indigenous environments as an instrument to preserve their culture and language. We also aimed here to display results of a first version of a cataloguing system we have been developing to store words from the Xacriabá language. We think that the availability linguistic data in any digital format may induce or support the cultural revival of indigenous peoples.


Rodrigues D.D.D.O.,Federal University of Amazonas | De Barros W.F.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | De Queiroz-Neto J.P.,Federal University of Amazonas | Fontoura A.G.,Federal University of Amazonas | Carvalho J.R.H.,Federal University of Amazonas
Proceedings - 2016 29th SIBGRAPI Conference on Graphics, Patterns and Images, SIBGRAPI 2016 | Year: 2016

The demand for efficient enhancement methods of underwater images of the rivers in the Amazon region is increasing. However, most of those in the region present moderate turbidity and low luminosity. This work aims to improve these images by non-linear filtering techniques, which promote the minimization of light interaction characteristics with the environment, loss of the contrast and colors. The proposed method is compared with two others techniques that requires a unique image as input. The results of the proposed method is promising, with better visual quality considering a wide range of experiments with simulation data and real outdoor scenes. © 2016 IEEE.


Murta R.M.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Veloso C.M.,Federal University of Viçosa | Silva F.F.,State University of Southwest Bahia | Pires A.J.V.,State University of Southwest Bahia | And 3 more authors.
Arquivo Brasileiro de Medicina Veterinaria e Zootecnia | Year: 2013

The objective was to evaluate the economic viability of using different lipid sources in the diet of lactating cows. The experiment was done in an area of 42ha, divided into eight paddocks with an average size of approximately 5.3ha each, consisting of Brachiaria brizantha. Twelve Holstein x Zebu crossbred cows were distributed in three 4 x 4 Latin Squares. The four treatments consisted of different lipid sources, as follows: no extra source of dietary lipids, diet with cottonseed, diet with soybean oil, and diet with soybean frying oil. The diets were formulated to meet the requirements for maintenance and production of 15 kg/day, with 3.5% fat. To study the effect of economic analysis, two economic indicators were used: net present value and internal return rate. A one year simulation was produced to study economic characteristics, computing the depreciation of facilities and machinery in this period. The total cost per animal and per liter of milk produced increased with the use of lipid sources in the diet. All treatments had positive values for profit per animal, with observed values of R$ 2.82, R$ 2.68, R$ 2.39 and R$ 2.09, for treatments without lipid source; soybean frying oil as lipid source; cottonseed as lipid source and soybean oil as lipid source, respectively. The internal return rate was more advantageous when no fat source was used in the diet, demonstrating that this treatment is economically better for an investor, generating 0.73% per month. The net present value calculation shows that this investment is viable for all treatments with a 6% discount rate. Treatment without lipid source had a lower production cost and therefore is more cost-effective. Milk production is not viable for any treatment with return rates of the net present value of 10 and 12%.


De Souza G.H.S.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Da Cruz Freire Dos Santos P.,Federal University of Alagoas | Lima N.C.,Federal University of Uberlandia | Da Cruz N.J.T.,Federal University of Alagoas | And 2 more authors.
Gestao e Producao | Year: 2017

Researches worldwide show that entrepreneurs share idiosyncratic characteristics compared with the rest of the population, which have stimulated specific studies on measurement of this behaviour. Among the most relevant and recent measurement approaches to the area of entrepreneurship in Brazil, there was the Entrepreneurial Potential Scale. Nevertheless, the original presentation of this instrument failed to find psychometric properties of stricter validation, and the related studies are not yet sufficient. This article aimed to check evidence of confirmatory factor validity, parameters of dimensional structure and criterion validity (predictive efficacy) of the Entrepreneurial Potential Scale. Two studies were conducted for this purpose. Study 1 (one) included the participation of 455 university students to carry out the construct validity through confirmatory factor analysis and multidimensional scaling (MDS). In turn, study 2 (two) included the participation of 654 college students and 148 entrepreneurs to perform the criterion validity by Student's t test and effect size (Cohen's d). Results show that the Entrepreneurial Potential Scale presents a factorial design with good quality adjustment and high levels of precision, indicating that it is a tool which converges reliably to predict the entrepreneurial behaviour.


Grossi M.C.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Justino F.,Federal University of Viçosa | Rodrigues R.A.,Federal University of Goais | Andrade C.L.T.,Embrapa Milho e Sorgo
Bragantia | Year: 2015

Based on sensitivity analyses the effect of changing in climate on sorghum has been investigated. This has been achieved by conducting crop modeling experiments carried out with weather observations and output of global climate models. As can be anticipated results demonstrated that the sorghum yield is more sensitive to rainfall, solar radiation and CO2 concentration. However, the increase in CO2 concentration has a positive effect on yield in years that the crop is submitted to water stress. This effect is extremely reduced under well watered conditions and therefore is subject to the climate inter-annual variability. Accumulated solar radiation along the sorghum cycle below 1900 MJ m–2 has also been shown to reduce the yield. Compared to other weather variables the sorghum yield is less sensitive to changes in relative humidity. In this sense, changes in stomatal closure and therefore photosyntesis is not highly dependent on water vapor pressure. These finds can be applied for both climate observations and global models output. © 2015, Instituto Agronomico. All rights reserved.


Brandi I.V.,Federal University of Minas Gerais | Santos E.M.S.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Carvalho B.M.A.D.,Federal University of Minas Gerais | Duraes C.A.F.,Federal University of Minas Gerais | And 4 more authors.
Journal of Microbiological Methods | Year: 2016

An efficient technique for evaluation of the quality control of vaccines against clostridiosis is described in this study. This technique is capable of quantifying the toxoid of the bacterium Clostridium perfringens Type D, which is commonly found within these vaccines. The described method is performed in vivo to quantify the toxoid, replacing the current predominant approaches that use the titration of toxins before the inactivation process. This method is based on the partial neutralization of a determined dose of antitoxin by testing different doses of the toxoid. In order to guarantee its reliability, it is essential for the technique to be validated. Thus, the technique was tested using the following validation parameters: specificity and selectivity, detection limit, linear correlation, precision and robustness, in agreement with the requirements of regulatory agencies and international committees from around the world. The method was found to be specific, selective, robust, precise, and linear inside a specific concentration range. Therefore, it could be applied to the quality control of clostridiosis vaccines with satisfactory results. © 2016 Elsevier B.V.


PubMed | Federal University of Tocantins, Instituto Federal Do Norte Of Minas Gerais Ifnmg, Federal University of Minas Gerais and University of Sao Paulo
Type: | Journal: Journal of microbiological methods | Year: 2016

An efficient technique for evaluation of the quality control of vaccines against clostridiosis is described in this study. This technique is capable of quantifying the toxoid of the bacterium Clostridium perfringens Type D, which is commonly found within these vaccines. The described method is performed in vivo to quantify the toxoid, replacing the current predominant approaches that use the titration of toxins before the inactivation process. This method is based on the partial neutralization of a determined dose of antitoxin by testing different doses of the toxoid. In order to guarantee its reliability, it is essential for the technique to be validated. Thus, the technique was tested using the following validation parameters: specificity and selectivity, detection limit, linear correlation, precision and robustness, in agreement with the requirements of regulatory agencies and international committees from around the world. The method was found to be specific, selective, robust, precise, and linear inside a specific concentration range. Therefore, it could be applied to the quality control of clostridiosis vaccines with satisfactory results.


Santos J.N.S.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Gomes R.D.S.,Federal Rural University of Rio de Janeiro | Vasconcellos R.M.,Instituto Federal Of Educacao | Silva D.D.S.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Araujo F.G.,Federal Rural University of Rio de Janeiro
Journal of the Marine Biological Association of the United Kingdom | Year: 2014

We examined the benthic macroinfauna at three strata during two seasons (winter and summer) on two sandy beaches (dissipative and reflective) in south-eastern Brazil. The hypothesis raised is that effects of morphodynamics and zonation determine the structure of macroinfauna, with dissipative beaches having comparatively higher species richness and density than the reflective beaches. Flamengo beach (dissipative) had higher species richness but lower density compared to Grumari beach (reflective). A high dissimilarity in assemblage structure (91.75%) was detected between the two beaches. Zonation in the occurrence of macroinfauna was detected for the two beaches in the two examined seasons. At Grumari beach, Emerita brasiliensis occurred mainly in stratum 1 (intertidal swept zone) while Saccocirus sp. occurred in stratum 2 (infralittoral at 0.5 m depth), whereas at Flamengo beach E. brasiliensis and Enoploides sp. had the highest density in stratum 1 (intertidal swept zone) whereas Scolelepis goodbodyi and Donax uncinata dominated in stratum 3 (infralittoral at 1.0 m depth). Scolelepis goodbodyi, Dispio uncinata, Enoploides sp., Nematoda and Trileptium sp. were associated with higher a Dean parameter and content of organic matter at Flamengo beach. In contrast, Hastula sp., Donax sp., Pisionidens indica, Hemipodus californiensis, Saccocirus sp. and Phyllodocidae were associated with the higher wave period and grain size of Grumari beach. The hypothesis that macroinfauna structure differs between the beaches and strata was confirmed, with the dissipative beaches having comparatively higher richness but lower density than the reflective beaches. Copyright © Marine Biological Association of the United Kingdom 2014.


De Souza Silva-Camacho D.,Federal Rural University of Rio de Janeiro | Gomes R.D.S.,Federal Rural University of Rio de Janeiro | Santos J.N.S.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Araujo F.G.,Federal Rural University of Rio de Janeiro
Journal of the Marine Biological Association of the United Kingdom | Year: 2016

We examined the benthic fauna in four areas along a mangrove tidal channel in south-eastern Brazil, between October 2008 and August 2009. The tested hypothesis is that the most abundant groups avoid competition as they occupy different types of substrata and that the longitudinal distance from the sea also affects the occurrence of benthic fauna along the channel. We also examined the prop root epibiont fauna to describe this different community. Polychaeta was the dominant group in the sediment whereas Isopoda and Tanaidacea were the dominant groups on the prop roots. We found a tendency for higher infauna species richness and diversity in the innermost channel area during the summer. Higher abundance of epibiont fauna was also found in summer with tidal movements allowing the colonization of the prop roots of the mangrove forest by some taxa. The polychaetes Ceratocephale sp. and Laeonereis acuta had indication of habitat partitioning, with the first occurring mainly in very fine sand sediment whereas the latter preferred medium sand sediment. The microcrustaceans Chelorchestia darwini and Tanaidacea sp. 1 occurred in high abundance colonizing the prop roots. Exosphaeroma sp. was found in high abundance in infauna and epibiont fauna. The tested hypothesis of spatial partitioning of the mangrove channel by the benthic fauna was confirmed with the most abundant species occupying the substrata with different grain fractions and prop roots in different stations. Copyright © Marine Biological Association of the United Kingdom 2016


Lima J.F.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Mendonca D.G.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Escobar S.A.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Gusmao C.A.,Instituto Federal Do Norte Of Minas Gerais Ifnmg | Teixeira G.,Instituto Federal Do Norte Of Minas Gerais Ifnmg
Advances in Intelligent Systems and Computing | Year: 2016

This paper, through a literature review analyzes the use of technology in the indigenous environment as a resource for the preservation of their culture / language. It focuses on information systems and information management as ways to ensure the storage of data on indigenous language. It also displays the results of a system in its first version - which catalogs the words of a language in text format, image and sound - in this case the indigenous words Xakriabá people. We concluded that the availability of the words in this format may support the cultural revival of a group of people. It is expected that making online vocabulary available may contribute to the preservation and transmission of language and culture for future generations. © Springer International Publishing Switzerland 2016.

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