background: rna plays key role in many aspects of biological processes and its tertiary structure is critical for its biological function. rna secondary structure represents various significant portions of rna tertiary structure. since the biological function of rna is concluded indirectly from its primary structure, it would be important to analyze the relations between the rna sequences and t...

Background: Lactic acid bacteria (LAB) isolated originally from sourdough are probably the best candidates as biopreservatives, because they are well adapted to the non-aseptic conditions in sourdough fermentation. The aim of the present study was to study antifungal properties of a dominant endogenous LAB isolated from whole barley sourdough. Methods: Whole barley flour from a mixture of ba...

The effect of tributyltin (TBT) on the stability of hemocytic lysosome membranes of the mussel, Mytilus galloprovincialis, and the use thereof as a biomarker of TBT-induced stress, was investigated. Mussels were exposed to 0.1 and 1.0 µg/L tributyltin respectively for 4 weeks. Lysosomal membrane stability of hemocytes was tested weekly by means of the neutral red retention time (NRRT) assay, af...

Although schools have been identified as important settings in which young people’s sexual and reproductive health (SRH) can be promoted, there has been limited research into the role of teachers in delivering sex education programmes. This paper describes findings from a qualitative study of teachers’ beliefs and attitudes towards young people’s SRH in a Ugandan secondary school, and discusses...

BACKGROUND AND OBJECTIVES Memories enter a labile state during recollection. Thus, memory changes that occur during recollection can affect future instances of its activation. Having subjects perform a secondary task that taxes working memory while they recall a negative emotional memory often reduces its vividness and emotional intensity during subsequent recollections. However, researchers ha...

Phylogenetic-comparative analysis was used to construct a secondary structure of Adh precursor messenger RNA (pre-mRNA) in Drosophila. The analysis revealed that the rate of coevolution of base-pairing residues decreases with their physical distance. This result is in qualitative agreement with a model of compensatory fitness interactions which assumes that mutations are individually deleteriou...