Institute Ciencias Exatas e da Terra

Cuiabá, Brazil

Institute Ciencias Exatas e da Terra

Cuiabá, Brazil

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Ferreira J.G.,São Paulo State University | Ferreira J.G.,University of Sao Paulo | Stevanato A.,São Paulo State University | Santana A.M.,Institute Ciencias Exatas e da Terra | And 6 more authors.
Inorganic Chemistry Communications | Year: 2012

The organometallic compound [Pd(C-bzan)(SCN)(dppp)] {bzan = N-benzylideneaniline, dppp = 1,3-bis(diphenylphosphino)propane} was synthesized and characterized by elemental analyses, infrared and 1H and 31P{ 1H} NMR spectroscopies. The crystal and molecular structures of the title complex were determined by single-crystal X-ray diffraction techniques. In vitro antimycobacterial evaluation demonstrated that the compound [Pd(C-bzan)(SCN)(dppp)] displayed a MIC of 5.15 μM, which is superior than those values found for some commonly used anti-TB drugs and other Pd(II) complexes. © 2012 Elsevier B.V.


Santana A.M.,São Paulo State University | Santana A.M.,Institute Ciencias Exatas e da Terra | Ferreira J.G.,São Paulo State University | Ferreira J.G.,University of Sao Paulo | And 6 more authors.
Inorganic Chemistry Communications | Year: 2011

Structural studies on the two binuclear cyclometallated compounds [Pd(C 2,N-bzan)(μ-N 3)] 2 (1) and [Pd(C 2,N-bzan)(μ-Pz)] 2 (2) (bzan = N-benzylideneaniline) have been carried out in this work. In both compounds, C-H⋯π interactions play an important role in the molecular self-assembly. In complex 1, ortho-CH bonds from bzan moiety interact with the cyclopalladated ring at a distance of C bzan⋯C g 3.448(6) Å, providing a new structural evidence for the metalloaromaticity of the cyclometallated ring. © 2010 Elsevier B.V. All rights reserved.


Murakami D.M.,Institute Ciencias Exatas e da Terra | Bizao N.,Federal University of Mato Grosso | Vieira R.D.,Paulista University
Revista Brasileira de Fruticultura | Year: 2011

The Murici (Byrsonima cydoniifolia A. Juss) is small tree which presents many potentialities in food production, firewood and in folk medicine. Its reproduction is by seeds contained in the pyrenes, popularly called as stone that cause a low and uneven germination rate. The aim of this study was to evaluate the effects of stage of seed development, the temperature, the integrity of pyrenes and the gibberellic acid (GA 3) on germination of this species. For this, three experiments were conducted in a completely randomized design. The first one was considered two stages of fruit ripening, two states of integrity of the endocarp and two concentrations of gibberellic acid (GA 3); the second involved the use of accelerated aging with presence or absence of gibberellic acid (GA3) and, the third, two stages of fruit ripening, two concentrations of gibberellic acid (GA3) and presence or absence of aeration. The results allowed concluding that the seeds showed better physiological quality when coming from ripe fruits and abscised naturally. Pre-soaking of intact kernels in gibberellic acid at a concentration of 1 g.L -1 for 24 hours under alternating temperature of 25/35°C favored the germination. Satisfactory results occurred under alternating temperature in the germination chamber or in open air, in substrate consisting of sand with water supply in the hottest time of the day.


PubMed | Institute Ciencias Exatas e da Terra, Federal University of Mato Grosso and State University of Rio de Janeiro
Type: Journal Article | Journal: Ciencia & saude coletiva | Year: 2015

Lipid disorders are risk factors for atherosclerotic disease and its control may reduce morbidity and mortality from coronary artery disease. Knowledge of the factors associated with this injury may subsidize campaigns to encourage change in the populations lifestyle. The objective of this study is to estimate the prevalence of dyslipidemia and to identify associated factors. Cross-sectional population-based study, with individual data from the Telephone Survey on Risk Factors and Protection for Chronic Diseases Surveillance System (VIGITEL). It included 7,975 individuals of both sexes, aged 18 years living in state capitals in the central-west of Brazil, in the year 2009. Associations were estimated using Poisson regression. The prevalence of dyslipidemia was 15%, increased with age (p = < 0.01) did and not differ significantly according to sex. After adjustments, the variables that were directly associated with the outcome were overweight (p = < 0.01), obesity (p = < 0.01) and self-rated health as poor (p = < 0.01). Regular consumption of bean ( 5 days/week) was inversely associated with the prevalence of dyslipidemia (p = < 0.01). The prevalence of dyslipidemia in the central-west of Brazil was increased with age and was associated with bean consumption, excess weight (overweight and obesity) and self-rated health as poor.


Ionashiro E.Y.,Federal University of Goais | Caires F.J.,São Paulo State University | Siqueira A.B.,Institute Ciencias Exatas e da Terra | Lima L.S.,São Paulo State University | Carvalho C.T.,Federal University of Grande Dourados
Journal of Thermal Analysis and Calorimetry | Year: 2012

Characterization, thermal stability and thermal decomposition of light trivalent lanthanide fumarates, as well as, the thermal behaviour of fumaric acid and its sodium salt were investigated employing simultaneous thermogravimetry and differential thermal analysis, differential scanning calorimetry, Fourier transform infrared spectroscopy (FTIR), TG-FTIR techniques, elemental analysis and complexometry. On heating, sublimation of fumaric acid is observed, while the thermal decomposition of the sodium fumarate occurs with the formation of a mixture of sodium carbonate and carbonaceous residue. The thermal decomposition of light trivalent lanthanide fumarates occurs in consecutive and/or overlapping steps with the formation of the respective oxides: CeO2, Pr6O11, and Ln2O 3 (Ln = La, Nd, Sm, Eu, Gd). © 2011 Akadémiai Kiadó, Budapest, Hungary.


Lima L.S.,São Paulo State University | Caires F.J.,São Paulo State University | Gigante A.C.,São Paulo State University | Gomes D.J.C.,São Paulo State University | And 3 more authors.
Thermochimica Acta | Year: 2013

Solid-state Ln-L compounds, where Ln stands for heavy trivalent lanthanides or yttrium(III) (Tb-Lu, Y) and L is succinate, have been synthesized. Simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC), infrared spectroscopy, TG-DTA coupled to FTIR, elemental analysis, X-ray powder diffractometry and complexometry were used to characterize and study the thermal behavior of these compounds. For the terbium to thulium and yttrium compounds, the dehydration, as well the thermal decomposition of the anhydrous compound occurs in two consecutive steps, while ytterbium and lutetium the dehydration occurs in a single step. The results also led to information about the ligand's denticity, thermal stability and thermal decomposition of these compounds. © 2013 Elsevier B.V.


Caires F.J.,São Paulo State University | Lima L.S.,São Paulo State University | Carvalho C.T.,Federal University of Grande Dourados | Siqueira A.B.,Institute Ciencias Exatas e da Terra | And 2 more authors.
Journal of Thermal Analysis and Calorimetry | Year: 2012

Synthesis, characterization, and thermal behavior of transition metal oxamates, M(NH 2C 2O 3) 2•nH 2O (M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II)), as well as the thermal behavior of oxamic acid and its sodium salt (NaNH 2C 2O 3) were investigated employing simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), experimental and theoretical infrared spectroscopy, TG-DSC coupled to FTIR, elemental analysis and complexometry. The results led to information about the composition, dehydration, thermal stability, thermal decomposition, as well as of the gaseous products evolved during the thermal decomposition of these compounds in dynamic air and N 2 atmospheres. © 2011 Akadémiai Kiadó, Budapest, Hungary.


de Araujo N.B.,Federal University of Mato Grosso | Marcon S.R.,UFMT | Silva N.G.,UFMT | de Oliveira J.R.T.,Institute Ciencias Exatas e da Terra
Jornal Brasileiro de Psiquiatria | Year: 2012

Objective: Compare clinical and sociodemographic profile of adolescents who stayed and did not stay in treatment at Centro de Atenção Psicossocial para Álcool e outras Drogas (CAPSad). Method: A transverse study based on medical records of 125 users who had been in treatment at Caps ad Adolescer in Cuiabá/MT, from June 2009 to June 2011. Results: The permanence in treatment was predominantly male among users who extensively used psychoactive substances, who were sent for this treatment by social and judicial sectors. They had a confictual family relationship and also had a frequent participation of family in treatment. The biggest proportion of those who did not stay in treatment happened because of the lack of integration with other devices of the network. Conclusion: To know the characteristics of the adolescents and the interveners factors in the permanence reinforce the responsibility of CAPS in the effective articulation of the network, and moreover, reassure that family must be more and more close to treatment, as an fundamental part in the project of intervention.


Lima L.S.,São Paulo State University | Caires F.J.,São Paulo State University | Carvalho C.T.,São Paulo State University | Siqueira A.B.,Institute Ciencias Exatas e da Terra | Ionashiro M.,São Paulo State University
Thermochimica Acta | Year: 2010

Characterization, thermal stability and thermal decomposition of light trivalent lanthanide succinates, Ln2(C4H4O4)3 ·nH2O (Ln = La to Gd, except Pm) were investigated employing simultaneous thermogravimetry and differential thermal analysis (TG-DTA), differential scanning calorimetry (DSC), infrared spectroscopy, TG-FTIR system, elemental analysis and complexometry. The dehydration of the lanthanum and cerium compounds occurs in a single step, while for the praseodymium to gadolinium compounds the dehydration occurs in two consecutive steps. The thermal decomposition of the anhydrous compounds occurs in consecutive and/or overlapping steps, except for the cerium compound, with formation of the respective oxides, CeO2, Pr6O11 and Ln2O3 (Ln = La, Nd to Gd), as final residue. The results also provided information concerning the denticity of the ligand and thermal behaviour of these compounds. © 2010 Elsevier B.V. All rights reserved.


Sinhorin V.D.G.,Federal University of Mato Grosso | Sinhorin A.P.,Federal University of Mato Grosso | Teixeira J.M.D.S.,Federal University of Mato Grosso | Mileski K.M.L.,Federal University of Mato Grosso | And 5 more authors.
Ecotoxicology and Environmental Safety | Year: 2014

The aim of this study was to investigate the effects of acute glyphosate (active ingredient) exposure on the oxidative stress biomarkers and antioxidant defenses of a hybrid surubim (Pseudoplatystoma sp). The fish were exposed to different herbicide concentrations for 96h. The thiobarbituric acid-reactive substances (TBARS), protein carbonyls and antioxidant responses were verified. The 15mg a.pL-1 of herbicide resulted in the death of 50% of the fish after 96h. An increase in liver and muscle TBARS levels was observed when fish were exposed to the herbicide. The protein carbonyl content was also increased in the liver (4.5mg a.pL-1 concentration) and brain (2.25mg a.pL-1 concentration). The antioxidant activities decreased in the liver and brain after exposure to herbicide. Levels of ascorbic acid in the liver (2.25mg a.pL-1 and 4.5mg a.pL-1 concentrations) and brain (2.25mg a.pL-1 concentration) were increased post-treatment. Levels of total thiols were increased in the liver and brain (2.25mg L-1 and 7.5mg a.pL-1, respectively). Glyphosate exposure, at the tested concentrations affects surubim health by promoting changes that can affect their survival in natural environment. Some parameters as TBARS and protein carbonyl could be early biomarkers for Roundup exposure in this fish species. © 2014 Elsevier Inc.

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