Painful Thyroid Palpation

A 37-years-old woman, complaining of fever, malaise, myalgia, sore throat and dysphagia lasting for 15 days, had been taking antibiotics and paracetamol for 7 days, without symptoms' improvement. The clinical examination revealed hyperaemic oropharynx and enlarged, painful thyroid. Further exams showed increased analytic inflammatory serum parameters as well as thyrotoxicosis. The thyroid gland had heterogeneous echostructure, with markedly hypoechoic areas and significant capsular oedema as well as decreased radionuclide uptake in the scintigraphy. Both symptoms and imaging improved with paracetamol and ibuprofen. Thyroid gland function normalized in two months. The patient remains in follow-up. This case reports the clinical features of subacute or De Quervain's thyroiditis. The differential medical approach to the patient with painful thyroid palpation is discussed. The diagnosis is essentially clinic, highlighting the importance of a rigorous physical exam. These patients' follow-up is required, considering the clinical and analytic progression

Stellar populations in the Canis Major over-density

We performed a photometric multicolor survey of the core of the Canis Major over-density at l 244, -8.0, reaching V = 22 and covering 0.3 x 1 degree. The main aim is to unravel the complex mixture of stellar populations toward this Galactic direction, where in the recent past important signatures of an accretion event have been claimed to be detected. While our previous investigations were based on disjointed pointings aimed at revealing the large scale structure of the third Galactic Quadrant, we now focus on a complete coverage of a smaller field centered on the Canis Major over-density. A large wave-length baseline, in the UBVRI bands, allows us to build up a suite of colour colour and colour magnitude diagrams, providing a much better diagnostic tool to disentangle the stellar populations of the region. In fact, the simple use of one colour magnitude diagram, widely employed in all the previous studies defending the existence of the Canis Major galaxy, does not allow one to separate the effects of the different parameters (reddening, age, metallicity, and distance) involved in the interpretation of data, forcing to rely on heavy modeling. In agreement with our previous studies in the same general region of the Milky Way, we recognize a young stellar population compatible with the expected structure and extension of the Local (Orion) and Outer (Norma-Cygnus) spiral arms in the Third Galactic Quadrant. Moreover we interpret the conspicuous intermediate-age metal poor population as belonging to the Galactic thick disk, distorted by the effect of strong disk warping at this latitude, and to the Galactic halo.Comment: 9 pages, 12 eps figures (some of them somewhat degraded in resolution), accepted for publication in MNRA

Variações diurnas da emissão de CO2, temperatura e umidade do solo sobre diferentes manejos pós-colheita da cana-de-açúcar.

bitstream/item/69062/1/098-moitinho-variacoes.pdfPublicado também no Cadernos de Agroecologia, v. 7, n.2, 2012

Sixteen overlooked open clusters in the fourth Galactic quadrant

Aims. This paper has two main objectives: (1) To determine the intrinsic properties of 16 faint and mostly unstudied open clusters in the poorly known sector of the Galaxy at 270\u25e6 12300\u25e6 to probe the Milky Way structure in future investigations. (2) To address previously reported systematics in Gaia DR2 parallaxes by comparing the cluster distances derived from photometry with those derived from parallaxes. Methods. Deep UBVI photometry of 16 open clusters was carried out. Observations were reduced and analyzed in an automatic way using the ASteCA package to obtain individual distances, reddening, masses, ages, and metallicities. Photometric distances were compared to those obtained from a Bayesian analysis of Gaia DR2 parallaxes. Results. Ten out of the sixteen clusters are true or highly probable open clusters. Two of them are quite young and follow the trace of the Carina Arm and the already detected warp. The remaining clusters are placed in the interarm zone between the Perseus and Carina Arms, as expected for older objects. We found that the cluster van den Berg-Hagen 85 is 7.5 7 109 yr old, which means that it is one of the oldest open clusters detected in our Galaxy so far. The relationship of these ten clusters with the Galaxy structure in the solar neighborhood is discussed. The comparison of distances from photometry and parallaxes data in turn reveals a variable level of disagreement. Conclusions. Various zero-point corrections for Gaia DR2 parallax data recently reported were considered for a comparison between photometry- and parallax-based distances. The results tend to improve with some of these corrections. Photometric distance analysis suggests an average correction of 3c+0.026 mas (to be added to the parallaxes). The correction may have a more intricate dependence on distance, but addressing this level of detail will require a larger cluster sample

Avaliação do desempenho de adubos verdes antecedendo o plantio de milho, em agroecossistema sob bases ecológicas, Utilizando-se análises multivariadas.

bitstream/item/68818/1/021-moitinho-avaliacao.pdfPublicado também no Cadernos de Agroecologia, v. 7, n. 2, 2012