European lineages of Apis mellifera were first introduced into America for beekeeping purposes. A subsequent introduction and accidental release A. m. scutellata resulted in hybridization events that gave rise to Africanized populations rapidly spread throughout the continent. In Argentina, honey bees (AHBs) have been mostly detected northern regions territory, represent a valuable genetic reso...

BACKGROUND The Circle of Willis (CoW) is an important collateral pathway of the cerebral blood flow. An experimental study of the cerebral blood flow (CBF) distribution in different anatomical variations may help to a better understanding of the collateral mechanism of the CoW. METHODS An in-vitro test rig was developed to simulate the physiological cerebral blood flow in the CoW. Ten anatomi...

Lipids are main fuels for cellular energy and mitochondria their major oxidation site. Yet unknown is to what extent the fuel role of lipids is influenced by their uncoupling effects, and how this affects mitochondrial energetics, redox balance and the emission of reactive oxygen species (ROS). Employing a combined experimental-computational approach, we comparatively analyze β-oxidation of pal...

A detailed understanding of microbial ecology in different supraglacial habitats is important due to the unprecedented speed of glacier retreat. Differences in bacterial diversity and community structure between glacial snow and glacial soil on the Chongce Ice Cap were assessed using 454 pyrosequencing. Based on rarefaction curves, Chao1, ACE, and Shannon indices, we found that bacterial divers...

Hepatitis B virus (HBV) infection is a common problem in the world, especially in China. More than 60-80% of hepatocellular carcinoma (HCC) cases can be attributed to HBV infection in high HBV prevalent regions. Although traditional Sanger sequencing has been extensively used to investigate HBV sequences, NGS is becoming more commonly used. Further, it is unknown whether word pattern frequencie...

We present a new multivariate technique for testing the significance of individual terms in a multifactorial analysis-of-variance model for multispecies response variables. The technique will allow researchers to base analyses on measures of association (distance measures) that are ecologically relevant. In addition, unlike other distance-based hypothesis-testing techniques, this method allows ...

Abstract Despite their high abundance and species richness, tilapiines have been compromised by various factors especially overfishing, climate change, uncontrolled fish transfers introductions. Fish introductions negatively impacted native tilapiine populations through competition, predation, hybridization, introgression compromising genetic integrity. The hybridization levels of different in ...

This study provides a taxonomic revision for Ceropegia sect. Huernia in the flora of Saudi Arabia. Forty-six quantitative and qualitative morphological characters were analysed using principal component analysis (PCA), coordinates (PCoA) unweighted pairs group mean average (UPGMA) to separate help delimit taxa. We propose reduce number species reported Arabia from 11 four: C. khalidbinsultanii ...

Abstract Background Cotton ( Gossypium spp.) is one of the most important economic crops worldwide, and its production plays an role in economy many countries. Genetically modified herbicide-tolerant (GMHT) crops, which were developed to minimize losses caused by weeds, have gradually become widely adopted genetically world due their environmental benefits. However, potential ecological risks G...