The Universidade Federal de Santa Maria is a Brazilian public university located in Santa Maria, in the state of Rio Grande do Sul, funded by the federal government of Brazil. It was founded in 1960, by Professor José Mariano da Rocha Filho.UFSM's presence in the municipality of Santa Maria is one of the reasons why the city is sometimes called "university city" or "culture city". Santa Maria is located in western Rio Grande do Sul, approximately 290 km far from the capital city of the state, Porto Alegre. Set in the heart of the pampas of Brazil, the city thrives with gaúcho culture.UFSM is a public, free university, and students do not pay any tuition fees. It is the oldest federal university not located in a Brazilian state capital city, and the largest in number of undergraduate courses offered in Rio Grande do Sul state. Wikipedia.
Riffel R.A.,Federal University of Santa Maria |
Storchi-Bergmann T.,Federal University of Rio Grande do Sul
Monthly Notices of the Royal Astronomical Society | Year: 2011
We present stellar and gaseous kinematics of the inner ≈350-pc radius of the Seyfert galaxy Mrk1066 derived from J and Kl bands data obtained with the Gemini's Near-Infrared Integral Field Spectrograph (NIFS) at a spatial resolution of ≈35pc. The stellar velocity field is dominated by rotation in the galaxy plane but shows an S-shape distortion along the galaxy minor axis which seems to be due to an oval structure seen in an optical continuum image. Along this oval, between 170 and 280pc from the nucleus we find a partial ring of low σ* (≈50kms-1) attributed to an intermediate-age stellar population. The velocity dispersion of the stellar bulge (σ*≈ 90kms-1) implies a supermassive black hole mass of ≈5.4 × 106M⊙. From measurements of the emission-line fluxes and profiles ([Pii]λ 1.1886μm, [Feii]λ 1.2570μm, Paβ and H2λ 2.1218μm), we have constructed maps for the gas centroid velocity, velocity dispersion as well as channel maps. The velocity fields for all emission lines are dominated by a similar rotation pattern to that observed for the stars, but are distorted by the presence of two structures: (i) a compact rotating disc with radius r≈ 70pc; (ii) outflows along the radio jet which is oriented approximately along the galaxy major axis. The compact rotating disc is more conspicuous in the H2 emitting gas, which presents the smallest σ values (≤70kms-1) and most clear rotation pattern, supporting a location in the galaxy plane. We estimate a gas mass for the disc of ∼107M⊙. The H2 kinematics further suggests that the nuclear disc is being fed by gas coming from the outer regions. The outflow is more conspicuous in the [Feii] emitting gas, which presents the highest σ values (up to 150kms-1) and the highest blue and redshifts of up to 500kms-1, while the highest stellar rotation velocity is only ≈130kms-1. We estimate a mass-outflow rate in ionized gas of ≈6 × 10-2M⊙yr-1. The derived kinematics for the emitting gas is similar to that observed in previous studies supporting that the H2 is a tracer of the active galactic nucleus feeding and the [Feii] of its feedback. © 2010 The Authors. Journal compilation © 2010 RAS. Source
Basf, Federal University of Rio Grande do Sul, Federal University of Santa Maria, Federal Technological University of Paraná and Federal University of Mato Grosso | Date: 2013-02-27
The present invention relates to the use of an agrochemical composition comprising at least one specific herbicide and at least one specific fungicide for controlling undesired vegetation in corn (maize) cultures. The invention further relates to a method for controlling undesired vegetation in corn cultures.
Basf, Federal Technological University of Paraná, Federal University of Mato Grosso, Federal University of Rio Grande do Sul and Federal University of Santa Maria | Date: 2013-02-27
The present invention relates to the use of an agrochemical composition comprising at least one specific herbicide and at least one specific fungicide for controlling undesired vegetation in soybean cultures and for the desiccation and/or defoliation of soybeans. The invention further relates to a method for controlling undesired vegetation in soybean cultures and to a method for the desiccation and/or defoliation of soybean plants.
Toni C.,Federal University of Santa Maria
Journal of applied toxicology : JAT | Year: 2010
Cyprinus carpio were exposed under field conditions to 20.87 microg l(-1) of commercial herbicide bispyribac-sodium (Nominee, SC), during 7, 21 and 72 days. Enzymatic parameters such as catalase (CAT), glutathione S-transferase (GST) and acetylcholinesterase (AChE) activities, as well as thiobarbituric acid-reactive substances (TBARS) and protein carbonyl contents were studied in different tissues. After 7 days of exposure, GST activity decreased. At the same period, brain AChE activity increased, but a reduction of activity was observed in muscle tissue. Brain TBARS levels increased at 7 days. After 21 days of exposure liver CAT levels and muscle AChE activities decreased. In the same period, liver protein carbonyl and muscle TBARS increased. After 72 days of exposure in the field, AChE activity was reduced in both brain and muscle. Protein carbonyl contents in liver and brain TBARS levels increased. Muscle AChE activity, TBARS and protein carbonyl can be used as biomarkers of exposure to the herbicide bispyribac-sodium. This study demonstrates effects of exposure to bispyribac-sodium under rice field conditions on oxidative stress parameters in tissues of Cyprinus carpio. (c) 2010 John Wiley & Sons, Ltd. Source
Goncalves P.B.,Federal University of Santa Maria
Journal of ovarian research | Year: 2014
BACKGROUND: Estradiol (E2) receptors mediate E2 effects on cell proliferation and apoptosis under normal and pathological conditions. However, the mechanisms involved in E2 signaling are not completely understood. The objectives in this study were to evaluate the expression of estrogen receptors (ESRs) during follicular selection in cattle, and the effect of intrafollicular injection of fulvestrant (an antagonist of ESRs) on follicular development and transcript abundance in granulosa cells.METHODS: Granulosa cells were obtained from the two largest follicles around follicular deviation, after FSH treatment and after intrafollicular injection of fulvestrant. Ovarian follicular dynamics monitored by ultrasonography and quantitative real time PCR were used to validate the in vivo model and investigate the effects of FSH supplementation or ESR blockade on mRNA expression of estradiol-related genes.RESULTS: ESR1 and ESR2 were expressed in granulosa cells of both dominant (F1) and subordinate (F2) follicles, but their transcripts levels were higher in F1 than F2 after follicular deviation. FSH treatment maintained mRNA levels of both ESR1 and ESR2 in F2 follicles at similar levels observed in F1 follicles. Intrafollicular injection of 100 μM fulvestrant inhibited follicular growth and decreased CYP19A1 mRNA levels. Transcript levels for both ESR1 and ESR2 were not affected by fulvestrant injection. Analyses of FSH-regulated genes revealed that ESRs inhibition in the dominant follicle decreased the transcript levels of the GJA1 but not those of PRKAR2B, MRO or LRP11 genes.CONCLUSIONS: Our findings indicate that: both ESR1 and ESR2 are regulated during follicular deviation and dominance in cattle and in response to FSH treatment, and ESRs are required for normal gene expression and development of the dominant follicle. Furthermore, we have validated an in vivo model to study estrogen signaling during follicular development that allows paracrine signaling between different follicular cells in a physiological endocrine environment. Source