determining the ecological sustainability of calshoor basin using the ecological footprint method ziaedin badehian1*, masoumeh mansouri2 1. assistant professor, department of forestry, faculty of agriculture and natural resources, lorestam university, iran 2. phd student in forestry, faculty of agriculture and natural resources, lorestan university, iran introduction during the recent years, is...

BACKGROUND Although ejection fraction (EF) both perimyocardial infarction (MI) and late post-MI are important prognostic factors, only implantable cardioverter-defibrillator trials of post-MI patients with depressed late EF have shown improved survival. This may relate to imprecision of early EF because of post-MI stunning. We sought to determine if peri-MI infarct size, as measured by cardiac ...

Elongation factor (EF) Tu promotes the binding of aminoacyl-tRNA (aa-tRNA) to the acceptor site of the ribosome. This process requires the formation of a ternary complex (EF-Tu.GTP.aa-tRNA). EF-Tu is released from the ribosome as an EF-Tu.GDP complex. Exchange of GDP for GTP is carried out through the formation of a complex with EF-Ts (EF-Tu.Ts). Mammalian mitochondrial EF-Tu (EF-Tu(mt)) differ...

The aim of this study was to test whether an improvement of left ventricular ejection fraction (EF) in the early phase after acute myocardial infarction is associated with a reduction of the severity of central and obstructive sleep apnoea. 40 consecutive patients with acute myocardial infarction underwent polysomnography and cardiovascular magnetic resonance imaging within 5 days and 12 weeks ...

It was previously shown that mutations of integrin alpha4 chain sites, within putative EF-hand-type divalent cation-binding domains, each caused a marked reduction in alpha4beta1-dependent cell adhesion. Some reports have suggested that alpha-chain "EF-hand" sites may interact directly with ligands. However, we show here that mutations of three different alpha4 "EF-hand" sites each had no effec...

Elongation factor G (EF-G) can support a GTPase activity in vitro even in the absence of ribosomes when propan-2-ol is present [GTPasep; De Vendittis, Masullo & Bocchini (1986) J. Biol. Chem. 261, 4445-4450]. In the present work the GTPasep activity of EF-G was further studied by investigating (i) the effect of ionic environment on GTPasep and (ii) the influence of propan-2-ol on the molecular ...

Elongation factor Ts (EF-Ts) is the guanine nucleotide exchange factor for elongation factor Tu (EF-Tu). An important feature of the nucleotide exchange is the structural rearrangement of EF-Tu in the EF-Tu.EF-Ts complex caused by insertion of Phe-81 of EF-Ts between His-84 and His-118 of EF-Tu. In this study, the contribution of His-118 to nucleotide release was studied by pre-steady state kin...

For f : [0, 1] → R, consider the relation Ef on [0, 1] defined by (xn)Ef (yn)⇔ P n<ω f(|yn−xn|) <∞. We study the Borel reducibility of Borel equivalence relations of the form Ef . Our results indicate that for every 1 ≤ p < q < ∞, the order ≤B of Borel reducibility on the set of equivalence relations {E : EIdp ≤B E ≤B EIdq} is more complicated than expected, e.g. consistently every linear order...

GCAPs are neuronal Ca2þ-binding proteins of the calmodulin (CaM) superfamily expressed in photoreceptors (Palczewski et al., 1994). Whereas mammals express up to three GCAPs (GCAP1-3), as many as eight distinct GCAPs can be identified in the genomes of lower vertebrates. These proteins exhibit about 50% sequence similarity and identical domain structures; all are N-myristoylated or modified by ...