Avaliação da chuva produzida pelo modelo eta de previsão do tempo para o Estado de São Paulo com uso de radar meteorológico para aplicações agrícolas

Pós-graduação em Agronomia (Irrigação e Drenagem) - FCA

Scrotal Thermography and Doppler Ultrasonography of the Testicular Artery of Buffaloes Subjected to Environmental Heat Stress

The process of spermatic division and differentiation (spermatogenesis) occurs with intratesticular temperature lower that the corporal temperature and for that is essential that the testicular thermoregulation mechanism occurs properly. For evaluation of the scrotal surface temperature can be used the infrared thermography or testicular sensors, besides that, can be evaluated the blood flux in the spermatic cord through the Doppler ultrasonography. Therefore the objective of this study was the evaluation of the scrotal thermography and Doppler flowmetry of the testicular artery of buffaloes subjected to environmental heat stress. For that were used seven healthy buffaloes, with age of 3 and 4 years, of the Murrah breed. For the surface scrotal temperature measurement (SST, degrees C) and superficial neck temperature (SNT, degrees C) was used the infrared termography (Infra Cam (TM) of the brand FLIR Systems Inc.), then Doppler flowmetry of the testicular artery in the region of the spermatic cord through the ultrasonography (Mylab 5, Esaote (R)) and measurement of the rectal temperature (RT, degrees C). The evaluations were done in two moments: moment 1 (M1) with all the animals in the shade (Temperature=32,2 degrees C) and moment 2 (M2) after 3 hours of exposure of animals to the sun (Temperature=38,7 degrees C To calculate the resistivity index (RI) and pulsatility index (PI), spectra were obtained from pulsed Doppler in three random regions of the testicular artery in the spermatic cord. Data were subjected to analysis of variance (ANOVA) followed by T test, using a significance level of 5%. There was an increase (p<0,05) of RT (37,4 +/- 0,4(a) vs 39,0 +/- 0,3(b); M1 and M2 respectively), SST (30,6 +/- 1,4(a) vs 35,2,0 +/- 1,0(b); M1 and M2 respectively) and SNT (33,1 +/- 2,5(a) vs 38,5,0 +/- 0,3(b); M1 e M2 respectively) e RI (0,67 +/- 0,1(a) vs 0,74 +/- 0,1(b); M1 e M2 respectively) in M2. Increasing trend was observed (0,05>p>0,01) in PI (1,10 +/- 0,4(a) vs 1,23 +/- 0,2(b); M1 and M2 respectively) in M2. The results of the present study allow us to conclude the healthy buffaloes have the scrotal average surface temperature 3 degrees C lower that the body temperature and that the exposure of 3 hours to sun in healthy buffaloes causes thermal stress to the animals and changes in its surface scrotal temperature, and the Doppler flowmetry of the testicular artery demonstrating the importance of thermal management for breeding buffaloes. Besides that, the thermography and the Doppler ultrasonography presented great potential to detect changes of testicular perfusion, being a promising additional test in the buffalo andrological evaluation.

B-mode Ultrasound and Doppler Mode for Early-stage Pregnancy Diagnosis in Shi-Tzu Bitches

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Triplex Doppler Ultrassonography in Prenatal of Pregnant Bitches

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Nanostructured Composites Based on Carbon Nanotubes and Epoxy Resin for Use as Radar Absorbing Materials

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Determination of equine fetal sex by Doppler ultrasonography of the gonads

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Doppler ultrasound in pregnancy assessment in bitches - literature review

Doppler ultrasound enables the assessment of blood flow in real time and has been widely used to aid in pregnancy diagnosis and monitoring in dogs and cats. This technique has a diferencial when compared with the B-mode ultrasound, as it allows the evaluation of vascular hemodynamic characteristics, while the two-dimensional ultrasound allows the diagnosis of pregnancy and fetal viability. Thus, the objective of this review is to describe how circulation is characterized in the uterine and fetal arteries in bitches during pregnancy using Doppler ultrasonography.

Conventional and Doppler Abdominal Ultrasonography in Pacas (Cuniculus paca)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise do sistema de medição em uma linha produtiva de radar

In this work, we analyze a measurement system that will be implanted in a wheels production line, in order to use those wheels for buses and trucks. The measurement device has to be approved according to the MSA study, due to the fact that the mentioned industry is an automobilistic supplier, so that it has to be conform with the ISO/TS 16949 standards. We showed the MSA studies, as well as some concepts for the work understanding. The airlock wheels systematic production is also broached, that is to say, wheels that use airlock tyres, with a better attention given to the rim production, where the device must be implanted. We analyze and assess the data’s acceptance according to the guidelines showed in this study, along with this, improvement proposals are elaborated and their analysis is made, in order to check the obtained results. Finally, we survey the analyzed measurement system, and new studies are suggested, with the intention of improving it