The study examines the asymmetric effect of oil price on exchange rate and stock using Nonlinear Autoregressive Distributive Lag (NARDL) technique time-series data spanning from January 1996 to September 2020. multivariate cointegration test showed evidence a long-run relationship among price, rate, price. linear Granger causality that is granger caused by cause rate. nonlinear nonlinearity BDS...

firm size and its impact on the firm performance examined in all of economics historical periods from different point of view. meanwhile, productivity is one the most important performance index for each firm, therefore so many studies tries to survey firm size impact on it. in iran also, economics literature replete with productivity studies but the impact of size on it rarely seen between the...

Low rainfall rates are becoming increasingly frequent because of climate change, causing droughts and threatening world food security. For popcorn, drought is the most limiting abiotic factor for plant’s growth development. Thus, water deficit directly impacts crop productivity. Based on knowledge genetic basis traits involved in stages popcorn germination seedling development under stress, gen...

In neuroendocrine cells, actin reorganization is a prerequisite for regulated exocytosis. Small GTPases, Rho proteins, represent potential candidates coupling actin dynamics to membrane trafficking events. We previously reported that Cdc42 plays an active role in regulated exocytosis in chromaffin cells. The aim of the present work was to dissect the molecular effector pathway integrating Cdc42...

The crystal structures of the Na(+)- and Li(+)-bound NtpK rings of Enterococcus hirae V-ATPase have been obtained. The coupling ion (Na(+) or Li(+)) was surrounded by five oxygen atoms contributed by residues T64, Q65, Q110, E139, and L61, and the hydrogen bonds of the side chains of Q110, Y68, and T64 stabilized the position of the E139 γ carboxylate essential for ion occlusion (PDB accession ...

Prominin1 (Prom1, also known as CD133 in human) has been widely used as a marker for cancer stem cells (CSCs), which self-renew and are tumorigenic, in malignant tumors including glioblastoma multiforme (GBM). However, there is other evidence showing that Prom1-negative cancer cells also form tumors in vivo. Thus it remains controversial whether Prom1 is a bona fide marker for CSCs. To verify i...