Universidade de Pernambuco

About: Universidade de Pernambuco is a education organization based out in Recife, Brazil. It is known for research contribution in the topics: Population & Medicine. The organization has 6147 authors who have published 6948 publications receiving 73648 citations.

Metabolic syndrome and central fat distribution are related to lower serum osteocalcin concentrations.

Abstract: Background: The aim of this study was to evaluate the association of serum osteocalcin with the metabolic syndrome (MS) in men and premenopausal women &

Cluster headache and intracranial aneurysm

Abstract: In the present study we describe the cases of two patients with cluster-like headache related to intracranial carotid artery aneurysm. One of these patients responded to verapamil prescription with headache resolution. In both cases the surgical clipping of the aneurysm resolved the cluster pain. These findings strongly suggest a pathophysiological link between the two conditions. The authors discuss the potential pathophysiological mechanisms underlying cluster-like headache due to intracranial carotid artery aneurysm.

Total mass attenuation coefficient evaluation of ten materials commonly used to simulate human tissue

Abstract: To study the doses received by patient submitted to ionizing radiation, several materials are used to simulate the human tissue and organs. The total mass attenuation coefficient is a reasonable way for evaluating the usage in dosimetry of these materials. The total mass attenuation coefficient is determined by photon energy and constituent elements of the material. Currently, the human phantoms are composed by a unique material that presents characteristics similar to the mean proprieties of the different tissues within the region. Therefore, the phantoms are usually homogeneous and filled with a material similar to soft tissue. We studied ten materials used as soft tissue-simulating. These materials were named: bolus, nylon®, orange articulation wax, red articulation wax, PMMA, modelling clay, bee wax, paraffin 1, paraffin 2 and pitch. The objective of this study was to verify the best material to simulate the human cerebral tissue. We determined the elementary composition, mass density and, therefore, calculated the total mass attenuation coefficient of each material. The results were compared to the values established by the International Commission on Radiation Units and Measurements - ICRU, report n° 44, and by the International Commission on Radiation Protection - ICRP, report n° 89, to determine the best material for this energy interval. These results indicate that new head phantoms can be constructed with nylon®.

Segundo repertório bibliográfico dos estudos em língua portuguesa dedicados a Plotino e ao Neoplatonismo da Antiguidade Tardia

Abstract: Este artigo constitui a segunda lista completa das referencias bibliograficas lusofonas sobre as filosofias neoplatonicas da Antiguidade tardia; da continuidade ao primeiro repertorio publicado em 2010 e cataloga os trabalhos (livros, artigos, teses e dissertacoes) publicados desde entao e e acompanhado de quatro indices: um de autores contemporâneos, um de tradutores, um de autores antigos e um de assuntos.