in order to identify and selection salt tolerant hybrids based on tolerance indices, 17 sugar beet three-way cross hybrids produced by crosses between 17 salinity improved s1 pollinators and a cytoplasmic male sterile (cms) single cross as female, along with three control genotypes were grown in 2007 in rudasht station (isfahan) under saline (12 ds/m and 8 ds/m for water and soil) and non-salin...

RNA interference (RNAi) is the process of sequence-specific post-transcriptional gene silencing triggered by double-stranded RNAs1–3. In attempts to identify RNAi triggers that effectively function at lower concentrations, we found that synthetic RNA duplexes 25–30 nucleotides in length can be up to 100-fold more potent than corresponding conventional 21-mer small interfering RNAs (siRNAs). Som...

A fundamental aspect of human intelligence is the ability to represent and reason relations. Examples of relational thinking include our ability to appreciate analogies between diVerent objects or events (Gentner, 1983; Holyoak & Thagard, 1995); our ability to apply abstract rules in novel situations (e.g., Smith, Langston, & Nisbett, 1992); our ability to understand and learn language (e.g., K...

In practice, there is no guarantee that the assumptions are satisfied for any given data set. From the summary statistics, such as SSR, SSRes, t-and F -test statistics or R it can be very hard (or impossible) to tell whether the assumptions are satisfied or violated. Thus we need other numerical or graphical methods to check the assumptions. The linearity is most often simply checked with scatt...

influence physicians’ recommendations for cardiac catheterization, concludes a study supported by the Agency for Health Care Policy and Research (HS07315). In the study, the investigators found that blacks and women with chest pain had relative odds of referral for cardiac catheterization that were 60 percent of the odds for whites and men. This disparity in testing was greatest for black women...

Mosquitoes are serious biting pests and obligate vectors of many vertebrate pathogens. Their immature larval and pupal life stages are a common feature in most tropical and many temperate water bodies and often form a significant proportion of the biomass. Control strategies rely primarily on the use of larvicides and environmental modification to reduce recruitment and adulticides during perio...