This study investigates the influence of extensive bimanual training in professional musicians on the incidence of handedness in the most basic form of right-handedness (RH) and non-right-handedness (NRH), according to Annett's "right shift theory". The lateralisation coefficients (LCs) of a total sample of 128 bimanually performing music students were calculated for speed, regularity, and fati...

We have identified a putative RNA helicase from Dictyostelium that is closely related to drh-1, the 'dicer-related-helicase' from Caenorhabditis elegans and that also has significant similarity to proteins from vertebrates and plants. Green fluorescent protein (GFP)-tagged HelF protein was localized in speckles in the nucleus. Disruption of the helF gene resulted in a mutant morphology in late ...

A canonical Ras-ERK signaling pathway specifies the fate of the excretory duct cell during Caenorhabditis elegans embryogenesis. The paralogs ksr-1 and ksr-2 encode scaffolding proteins that facilitate signaling through this pathway and that act redundantly to promote the excretory duct fate. In a genomewide RNAi screen for genes that, like ksr-2, are required in combination with ksr-1 for the ...

P granules are non-membrane-bound organelles found in the germ-line cytoplasm throughout Caenorhabditis elegans development. Like their "germ granule" counterparts in other animals, P granules are thought to act as determinants of the identity and special properties of germ cells, properties that include the unique ability to give rise to all tissues of future generations of an organism. Theref...

The phase transitions and hygroscopic growth of two humic acid aerosols (Aldrich sodium salt and Leonardite Standard (IHSS)) and their mixtures with ammonium sulphate have been investigated using a combination of two techniques, Fourier transform infra-red (FTIR) spectroscopy and tandem differential mobility analysis (TDMA). A growth factor of 1.16 at 85% relative humidity (RH ) was found for t...

The theory of free profinite semigroups, which received its major impetus with the publication of Reiterman’s paper [17] in the early eighties, has proven to be an important tool in the study of pseudovarieties of semigroups and on the varieties of recognizable languages associated with them (via Eilenberg’s Theorem on varieties [13]). The importance of Reiterman’s theorem was immediately under...

Endogenous small interfering RNAs (endo-siRNAs) have been discovered in many organisms, including mammals. In C. elegans, depletion of germline-enriched endo-siRNAs found in complex with the CSR-1 Argonaute protein causes sterility and defects in chromosome segregation in early embryos. We discovered that knockdown of either csr-1, the RNA-dependent RNA polymerase (RdRP) ego-1, or the dicer-rel...

Background: Antiretroviral therapy has transformed the HIV infection into a chronic manageably disease. Optimal adherence (≥ 95%) has required to achieve treatment success; however, still non-adherence remains major problem among patients receiving antiretroviral therapy (ART). The aim of this study was to determine adherences rate and evaluate factors affecting adherence among patients on ART ...

We reconsider the classic problems of calculating “turbulent heating” and collisionless interspecies transfer of energy in drift wave turbulence. These issues are of interest for low collisionality, electron heated plasmas, such as ITER, where collisionless energy transfer from electrons to ions is likely to be significant. From the wave Poynting theorem at steady state, a volume integral over ...