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Diversity in UV sensitivity and recovery potential among bacterioneuston and ba...

Aims: To assess the variability in UV-B (280–320 nm) sensitivity of selected bacterial isolates from the surface microlayer and underlying water of the Ria de Aveiro (Portugal) estuary and their ability to recover from previous UVinduced stress. Methods and Results: Bacterial suspensions were exposed to UV-B radiation (3Æ3 W m)2). Effects on culturability and activity were assessed from colony counts and 3H-leu...

Critical period for weed control in potatoes in the Huambo province (Angola)

ABSTRACT - The effects of different weed management periods on potatoes were studied in three areas (Bailundo, Chianga and Calenga) of the central highlands of Angola and in three cropping seasons, from June 2005 to May 2007. Six weed-management treatments were used to identify critical periods of competition and to allow the development of more precise management recommendations. Total potato yield ranged from...

Characterization of microbial population of “Alheira” (a traditional Portuguese...

This study evaluates the microbial ecology of ‘Alheira’ by traditional microbiological analysis and a PCR-denaturing gradient gel electrophoresis (DGGE) protocol. Methods and Results: Total microbial DNA from ‘Alheiras’ was extracted directly from the products and subjected to PCR using Eubacterial primers for 16S rDNA. The amplicons were separated by DGGE. The results demonstrated that different products of th...

Primary chemotherapy with sequential docetaxel followed by docetaxel and epirub...

Primary chemotherapy is increasingly used in patients with large operable breast cancer. Docetaxel and epirubicin are the most active agents in breast cancer treatment. PURPOSE: To evaluate clinical response rate, breast conserving surgery and pathological response rate in patients with large operable breast cancer treated with docetaxel followed by docetaxel and epirubicin as primary chemotherapy. PATIENTS AND...

Dynamics of microbial communities from constructed wetlands treating tannery wa...

Long-term performance and microbial dynamics of an up-flow fixed bed reactor es...

An up-flow fixed bed reactor (UFBR) was established to investigate the biodegradation of fluorobenzene (FB) under a number of operating conditions, which included variation in the concentration of FB in the feed stream (up to 180 mg l−1) and temporary suspension of feeding. Degradation of FB was followed for a period of 8 months under a continuous flow regime. During the operation of the UFBR, FB was never dete...

Cerebral-cardiac embolism. Cerebrovascular-cardiac embolic stroke.

The diagnosis of cerebral cardioembolism requires, apart from evidence of an embolic cardiopathy, a cause-effect relation to be established between the potential cardioembolic source and the occurrence of ischemic stroke. There are several arguments in favour of this reaction, namely the neurologic aspects put forward both clinicians and neuroimaging professionals, as well as the generalization of cardiologic d...