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Records of human occupation from Pleistocene river terrace and aeolian sediment...

In the uppermost reach of the Lower Tejo River (eastern central Portugal), where the river crosses two quartzite ridges that separate the Ródão (upstream) and Arneiro (downstream) depressions, Palaeolithic artefacts have been recovered from three lower river terrace levels and a cover unit of aeolian sands. This paper presents data on the discovery of archaeological artefacts from the terrace levels and the aeo...

Análise dos genes GSTM1 e GSTT1 em pacientes com câncer de cabeça e pescoço

OBJETIVO: Estabelecer o perfil clínico e demográfico bem como identificar os fatores de risco entre os pacientes com câncer de cabeça e pescoço e relacioná-los ao polimorfismo dos genes GSTT1 e GSTM1. MÉTODOS: Foram estudados 100 pacientes com carcinoma espinocelular de cabeça e pescoço e 100 indivíduos sem história de neoplasia. A análise molecular foi realizada pela técnica de PCR multiplex. Para a análise es...

Dating the Tejo river lower terraces in the Ródão area (Portugal) to assess the...

The Tejo river is one of the major drainages in Iberian Peninsula; it is a long-lived system (ca. 3.4 Ma) and provides an archive of long-term landscape development and environmental change controlled by tectonics, climate and eustasy. The most upstream Portuguese reach of the Tejo river, ~ 200 km from the Atlantic coast, shows evidence for five fluvial terraces (T1 to T5) with elevations reaching more than 120...

Cyto-histological correlation of malignant thyroid nodules: clinical factors as...

Fine-needle aspiration (FNA) is routinely used to distinguish benign from malignant tumors in thyroid nodules. Most benign or malignant diagnosis are confirmed by histology, but for suspected malignancies (Follicular neoplasm and Hürthle-cell neoplasm histology is always required. Some clinical factors have been identified as predictors of malignancy in the suspicious cases with eventual interest for treatment ...

Thyroiditis and pregnancy.

Authors develop the concept of immunity tolerance and its importance in thyroiditis occurrence and evolution during pregnancy as well post-partum pathology. They also refer the mechanisms that can induce to change the immunity response during pregnancy involving maternal, placental and fetal cytochemistry. It is also proposed a constant and precocious screening of the thyroid dysfunction in pregnant woman with ...

Iraque : inferno na terra do paraíso