Produção de vídeos para dispositivos móveis.

No âmbito do projeto especial ?Soluções tecnológicas para adequação da paisagem rural ao Código Florestal brasileiro?, especificamente, do plano de ação ?Disponibilização de ferramentas de tecnologia da informação para apoiar na adequação ao Código Florestal? identificou-se a carência de novos produtos audiovisuais para dar acesso a conteúdos de informação tecnológica, via dispositivos móveis, voltados aos interesses de diferentes segmentos de público da sociedade brasileira. Nesse sentido, tem-se a proposta da criação de vídeos voltados para divulgação e disseminação de informações sobre a temática do Código Florestal, para acesso via dispositivos móveis, utilizando a metodologia de produção de microconteúdos, desenvolvida por Souza (2013)

Metal Abundances of Red Clump Stars in Open Clusters: I. NGC 6819

We present an analysis of high dispersion spectra (R~40000) of three red clump stars in the old open cluster NGC 6819. The spectra were obtained with SARG, the high dispersion spectrograph of the Telescopio Nazionale Galileo. The spectra were analyzed using both equivalent widths measured with an automatic procedure, and comparisons with synthetic spectra. NGC 6819 is found to be slightly metal-rich ([Fe/H]= +0.09 +/-0.03, internal error); there are no previous high resolution studies to compare with. Most element-to-element abundance ratios are close to solar; we find a slight excess of Si, and a significant Na overabundance. Our spectra can also be used to derive the interstellar reddening towards the cluster, by comparing the observed colours with those expected from line excitation: we derive E(B-V)=0.14 +/-0.04, in agreement with the most recent estimate for this cluster.Comment: 30 pages, 4 encapsulated figures, uses aastex, AJ in pres

Discovery of a bipolar and highly variable mass outflow from the symbiotic binary StHa 190

A highly and rapidly variable bipolar mass outflow from StHa 190 has been discovered, the first time in a yellow symbiotic star. Permitted emission lines are flanked by symmetrical jet features and multi-component P-Cyg profiles, with velocities up to 300 km/sec. Given the high orbital inclination of the binary, if the jets leave the system nearly perpendicular to the orbital plane, the de-projected velocity equals or exceeds the escape velocity (1000 km/sec). StHa190 looks quite peculiar in many other respects: the hot component is an O-type sub-dwarf without an accretion disk or a veiling nebular continuum and the cool component is a G7 III star rotating at a spectacular 105 km/sec unseen by a large margin in field G giants.Comment: Letter to the Editor, Astron.Astrophys, in pres

Integração lavoura-pecuária-floresta: intensificação sustentável para a sobrevivência humana.

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Palazzo Doghi Ponti

Vita.The overall goal of this investigation was to develop a methodology for incorporating crop drainage requirements into subsurface drainage design schemes. The methodology developed was linked to the North Carolina State University Water Management Model (Skaggs, 1976) and it provides a workable simple design procedure. The proposed crop response model is a simple linear expression based on the Stress-Day Index concept advanced by Hiler (1969) and the ideas presented by Sieben (1964). The expression indirectly takes into account the intensity of oxygen deficits caused by high water tables, as well as the relative sensitivity of the crop to oxygen deficits at different growth stages. Long term computer simulations were conducted using grain sorghum as the experimental crop and a Bladen soil (poorly drained) located in Greenville, North Carolina. The crop response model was used to evaluate the degree of crop damage for given drain depths and spacings for 24 growing seasons (1952-1975). These output data were analyzed by methods generally used in hydrologic frequency analysis. Six different design graphs each having probability versus crop damage with a family of straight lines representing different drain spacing values were developed to show how the procedure could be used practically. The methodology developed incorporates drainage requirements and drainage theory in a rational way and can be used for day-to-day design of subsurface drainage systems

Soluble transferrin receptors and reticulocyte hemoglobin concentration in the assessment of iron deficiency in hemodialysis patients

Background: Diagnosing iron deficiency in hemodialysis (HD) patients is crucial for correct anemia management. Hypochromic erythrocytes appear to be the best available marker, but they are often unavailable. Transferrin saturation (TSAT) and ferritin are also indicated as reference markers by guidelines. We evaluated the usefulness of soluble transferrin receptor (s-TfR) and reticulocyte hemoglobin concentration (CHr), which have been recently proposed as more sensitive functional iron deficiency indicators. Methods: A single-center unselected cohort of 39 chronic HD patients underwent a cross-sectional determination of hemoglobin (Hb), hematocrit (Hct), CHr, transferrin, iron, TSAT, ferritin, folate, vitamin B12 and s-TfR. Twenty-nine patients (74.4%) were treated with subcutaneous erythropoietin (EPO) at a dose of 122 \ub1 98 U/kg/week and 24 patients (61.5%) were treated with intravenous (i.v.) iron gluconate, 62.5 mg/week. Results: Hb was 11.1 \ub1 1.2 g/dL, Hct 34.4 \ub1 3.7%, CHr 32.7 \ub1 3.8 pg, transferrin 170 \ub1 31 mg/dL, iron 60.2 \ub1 25.9 mg/dL, TSAT 30 \ub1 18%; ferritin 204 \ub1 219 ng/mL, folate 4.2 \ub1 1.0 mcg/L, vitamin B12 0.58 \ub1 0.15 mcg/L, and s-TfR 1.94 \ub1 0.83 mg/L. Both TSAT and s-TfR significantly correlated with CHr, but no relationship could be found between s-TfR and TSAT or between s-TfR and ferritin. Dividing the population into two groups based on iron repletion (ferritin >100 ng/mL, and TSAT >20%) we found no differences for CHr levels and significantly lower levels of s-TfR in the replete group (s-TfR 1.71 \ub1 0.70 vs. 2.29 \ub1 0.90 mg/L; p=0.033). Analysis of 2 72 tables demonstrated that 44% of patients with TSAT >20% had elevated (>1.5 mg/L) s-TfR, indicating a possible functional iron deficiency, but covariance analysis showed that TSAT had a better correlation to CHr. Conclusions: No clear-cut advantages in the use of CHr content and s-TfR levels as single diagnostic tests could be demonstrated by this cross-sectional study. However, our results suggest that the combined use of TSAT 1.5 mg/L (therefore, including all patients with low TSAT, but also patients with high s-TfR despite normal TSAT) could improve functional iron deficiency detection in dialysis patients suspected of having inflammatory conditions

Equivalence of information from single versus multiple frequency bioimpedance vector analysis in hemodialysis

Kidney Int. 2005 Jan;67(1):301-13. Equivalence of information from single versus multiple frequency bioimpedance vector analysis in hemodialysis. Piccoli A, Pastori G, Guizzo M, Rebeschini M, Naso A, Cascone C. Source Department Scienze Mediche e Chirurgiche, University of Padova, Padova, Italy. [email protected] Abstract BACKGROUND: In suspended cells, low-frequency current only passes through extracellular fluids, while current at higher frequencies passes through extra- and intracellular fluids. Cells in soft tissues are in contact with each other, which causes tissue anisotropy, meaning that impedance changes along different cell directions, with part of low-frequency current also passing through cells. Hence, equivalent information on body impedance change is expected at all frequencies, which we proved in a dynamic condition of fluid removal with hemodialysis. METHODS: We performed whole-body impedance spectroscopy (496 frequencies from 4 to 1024 kHz, SEAC SFB3 analyzer; Brisbane, Australia) before and during fluid removal (0, 60, 120, 180 min, 2.5 kg) in 67 hemodialysis patients. With increasing current frequency, resistance (R) decreases and reactance (Xc) moves along the Cole's semicircle on the R-Xc plane. RESULTS: The Cole's semicircles progressively enlarged and moved to the right on the R-Xc plane following fluid removal (increase in both R and Xc values at any given frequency). Xc values at 5 kHz (expected values close to 0 Ohm) were 70% of the maximun Xc, indicating an intracellular current flows at low frequencies. The correlation coefficient between R at 50 kHz (standard frequency) and R at other frequencies ranged from 0.96 to 0.99, and the correlation coefficient between Xc at 50 kHz and Xc at other frequencies at any time point ranged from 0.65 to 0.99. CONCLUSION: From high Xc values at low frequency, tissue anisotropy is inferred. Intra- and extracellular current flow causes equivalence of information based on functions of R and Xc measurements made at 50 kHz versus other frequencies