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Janaúba, Brazil

Magalhaes H.M.,Federal University of Minas Gerais | Lopes P.S.N.,Federal University of Minas Gerais | Ribeiro L.M.,UNIMONTES | Sant'Anna-Santos B.F.,Federal University of Minas Gerais | Oliveira D.M.T.,Federal University of Minas Gerais
Trees - Structure and Function | Year: 2013

Butia capitata, an endemic palm of the Brazilian savanna threatened by deforestation, demonstrates low germinability due to seed dormancy. The present study characterizes the structure of the zygotic embryo and describes germination and seedling development. Pyrenes were sown into sandy soil substrates to germinate, and their embryos were also cultivated in vitro in MS medium; structural evaluations were made during their development. Seedling growth through the endocarp germ pore culminates in the protrusion of the cotyledonary petiole, with the root and leaf sheaths subsequently being emitted laterally from its extremity. The embryos are composed of the cotyledon (whose proximal third has a haustorial function) and a diminutive embryo axis that is contained within the cotyledonary petiole. The protoderm, ground meristem, and procambium can be observed in their typical positions in the embryo axis and cotyledon. The development of the vegetative axis could be observed on the second day of in vitro cultivation, with elongation of the embryo axis and the beginning of the differentiation of the first eophyll. Elongation of the cotyledonary petiole and the differentiation of the parenchyma and tracheary elements were observed during the second to fifth day. Although the hypocotyl-radicle axis is less differentiated than the plumule, root protrusion occurs on the eighth day, and the leaf sheaths are only emitted between the twelfth and the sixteenth days; the haustorium atrophied during this stage. The embryonic structure of B. capitata does not impose limitations on seed germination as dormancy is of the non-profound physiological type, and the 50 % elongation of the cotyledonary petiole serves as a morphological indicator of germination. © 2012 Springer-Verlag Berlin Heidelberg. Source

Hoffmann E.J.,State University of Montes Claros | Farnese J.M.,Faculdades Unidas do Norte de Minas Funorte | Lima E.W.B.,UNIMONTES
Jornal Brasileiro de Psiquiatria | Year: 2010

Objective: To verify the prevalence of depressive symptoms of an elder population dwelling in a community in Montes Claros, Minas Gerais, Brazil, and evaluate the association of them with biopsychosocial aspects and functional capacity. Methods: Transversal, observational, and population-based study. All of the elders living in the coverage area of a Family Health Team, and the interviews were made in their dwellings. An adaptation of the Brazil Old Age Schedule (BOAS) questionnaire was used to collect the biopsychosocial data. The abbreviated Geriatric Depression Scale (GDS-15) was used to evaluate depressive symptoms. The Katz index was used to evaluate the basic activities of daily living (BADL); the Pfeffer index to evaluate instrumental activities of daily living (IADL). The associations were verified by submitting data to bivariate and multivariate analysis. Results: The prevalence of depressive symptoms was of 20.9%. Depressive symptoms were significative associated with difficulty to sleep (PR = 2.04; p = 0.002) and dependence for IADL (PR = 3.22; p < 0.001). Conclusion: There is a high prevalence of depressive symptoms among elders in the community, being more frequent among elders with difficulty to sleep and functional dependence for IADL. Source

Menegali I.,Federal University of Minas Gerais | Tinoco I.F.F.,Federal University of Vicosa | Carvalho C.C.S.,UNIMONTES | Souza C.F.,Federal University of Vicosa | Martins J.H.,Federal University of Vicosa
Revista Brasileira de Engenharia Agricola e Ambiental | Year: 2012

During the creation process of poultry, the initial or heating phase, is characterized as the most delicate period due to physiological immaturity of the birds. Thus, environmental factors stand out to infer, directly, in the growth, on the performance and maintenance of life of these animals. Based on these considerations, the aim of this study was to study the effect of three different systems of minimum ventilation (positive pressure, negative and natural) on environmental variables (air temperature, relative humidity and wind velocity) of broiler sheds during the heating phase. According to results obtained, it was verified that the heating system used was inadequate to maintain the air temperature and relative humidity within the standards deemed appropriate, thus exposing the birds to periods of heat stress by cold. In contrast, there were negative influences regarding ventilation rates applied to the two ventilation systems positive and negative. Wind velocity also remained at levels considered non-stressful for young chickens. Source

Martelli D.R.B.,State University of Montes Claros | Rodrigues L.A.M.,UNIMONTES | de Aquino S.N.,University of Campinas
Brazilian Journal of Otorhinolaryngology | Year: 2012

Cleft lip and/or palate represent the most common congenital anomalies of the face. Aim: Describe the relation between non sindromic cleft lip and/or palate and sex and severity of the clef in Brazilian population. Methods: Conducted cross-sectional study, between the years 2009 and 2011, with a population of 366 patients. Data were analyzed with descriptive statistics and using the multinomial logistic regression with an interval of 95% estimated the chances of the types of cleft lip and/or palate between sex. Results: Among the 366 cases of non sindromic cleft lip and/or palate, the more frequent clefts were cleft lip and palate, followed respectively by cleft lip and cleft palate. It is noted that cleft palate were more frequent in females, while the cleft lip and palate and cleft labial predominated in males. The risk of occurrence of cleft lip in relation the cleft palate was 2.19 times in males compared to females. While the risk of cleft lip and palate in relation cleft palate was 2.78 times in males compared to females. Conclusion: This study showed that there were differences in the distribution of the non sindromic cleft lip and/or palate between male and female. Source

Vieira A.W.,UNIMONTES | Lewiner T.,Pontifical Catholic University of Rio de Janeiro | Schwartz W.R.,Federal University of Minas Gerais | Campos M.,Pontifical Catholic University of Rio de Janeiro
Proceedings - International Conference on Pattern Recognition | Year: 2012

This work introduces a new representation for Motion Capture data (MoCap) that is invariant under rigid transformation and robust for classification and annotation of MoCap data. This representation relies on distance matrices that fully characterize the class of identical postures up to the body position or orientation. This high dimensional feature descriptor is tailored using PCA and incorporated into an action graph based classification scheme. Classification experiments on publicly available data show the accuracy and robustness of the proposed MoCap representation. © 2012 ICPR Org Committee. Source

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