Drosophila ovarian germline stem cells (GSCs) are maintained by the extracellular BMP2/4 orthologue Dpp, which is produced from the surrounding somatic niche. The Dpp signal has a short range; it induces a response in GSCs within the niche, but is rapidly extinguished in their progeny only one cell-diameter away. To ensure the correct balance between stem-cell maintenance and differentiation, s...

the effect of motivational self-regulatory strategies on l2 learners’ achievement has scarcely been examined within the context of our country, iran. this study is concerned with examining the relationship between motivational self-regulatory strategies and their l2 reading and l2 writing achievement. it also explores the relationship of motivational self-regulatory strategies and use of langua...

The GeneNet database is designed for accumulation of information on gene networks. Original technology applied in GeneNet enables description of not only a gene network structure and functional relationships between components, but also metabolic and signal transduction pathways. Specialised software, GeneNet Viewer, automatically displays the graphical diagram of gene networks described in the...

probabilistic boolean networks the modeling and control of probabilistic boolean networks the modeling and control of probabilistic boolean networks: the modeling and control probabilistic boolean networks society for industrial probabilistic boolean networks the modeling and control of probabilistic control of boolean networks with multiple from boolean to probabilistic boolean networks as mod...

conclusions the changes of treg and th17 cells and their associated cytokines were related to virological and biochemical responses. results in complete and partial-responders, treg cells frequencies and il-10, tgf-β1, il-23 levels were all decreased significantly after na therapy, while th17 cells and the il-17 levels were increased slightly. treg/th17 ratio was only dramatically declined in c...

background: regulatory t cells (tregs) have been involved in impaired immunity and may have a pivotal role in persistence of viral infections. objective: to develop a simple and reliable in-house three color flow cytometery of peripheral blood to understand the role of hcv infection in the increase of tregs. methods: the level of naturally occurring cd4+cd25+foxp3+ regulatory t cells (ntregs) i...

immune thrombocytopenic  purpura (itp) is an autoimmune bleeding disorder characterized by production  of auto-antibodies against platelet antigens. it is obvious that regulatory t cells (tregs) have a major role in controlling immune homeostasis and preventing autoimmunity. to investigate the frequency and functions of tregs, twenty itp patients and twenty age- and sex- matched healthy control...

abstract background and aims: vitamins are essential constituents of our diet that longley have been known to influence the immune system. vitamin d3 and b9 have received particular attention in recent years as these vitamins have been shown to have an unexpected and crucial effect on the immune response. 1, 25(oh)2d3 metabolizing enzymes and vitamin d receptor (vdr) are present in many cell ty...

The Diversity Multiplexing Tradeoff (DMT) [1] is a compact, yet elegant framework to capture the performance of wireless communication systems at asymptotically high signal to noise ratios (SNR). Recent application of DMT at finite SNR [2] makes the DMT a versatile framework. We have analyzed the DMT for the rate-adaptive SIMO maximal-ratio combining (SIMO-MRC) for asymptotic and non-asymptotic...