fire, as a natural ecological disturbance factor in forest, this study located in the marivan region, northern zagros forest, and western iranian state of kurdistan. in each burned and unburned area 30 circle sample plot (1000 m2) were collected by randomized–systematic method in the 100×200 m net (in total 60 plots). in every sample plot the kind of species, number of tree, the height of coppi...

We studied the presynaptic muscarinic autoreceptor subtypes controlling ACh release and their relationship with voltage-dependent calcium channels in the neuromuscular synapses of the Levator auris longus muscle from adult (30-40 days) and newborn (3-6 and 15 days postnatal) rats. Using intracellular recording, we studied how several muscarinic antagonists affected the evoked endplate potential...

to detection of suitable sampling method to study tree canopy cover in the northern zagros forest, baneeh region forest, kurdistan province, and west of iran was selected. 40 square sample plots one hectare (100×100 m) were selected and perfect inventoried. in every sample plot the position of tree, kind of species and two diameter of crown (m) were recorded. to study of canopy cover different ...

We present a fast compression sensing (CS) reconstruction algorithm with computation complexity O(M2), where M denotes the length of a measurement vector Y = φX that is sampled from the signal X of length N via the sampling matrix φ with dimensionality M ×N . Our method has the following characteristics: (1) it is fast due to a closedform solution is derived; (2) it is accurate because signific...

We introduce a Markov chain for sampling from the uniform distribution on a Riemannian manifoldM, which we call the geodesic walk. We prove that the mixing time of this walk on any manifold with positive sectional curvature Cx(u, v) bounded both above and below by 0 < m2 ≤ Cx(u, v) ≤ M2 < ∞ is O∗ ( M2 m2 ) . In particular, this bound on the mixing time does not depend explicitly on the dimensio...

in order to comprise the effects of sodium bicarbonate supplementation on anaerobic performance and some plasma metabolites, 16 young male athletes (age 20.58?3.25, height 175.33?2.48 cm and bmi 21.57? 2.68 kg/m2) participated in two 400 m running sessions one hour following sodium bicarbonate or placebo (calcium bicarbonate) supplementation with the counterbalanced order. there were three bloo...

Ab initio computation is performed on the binuclear sandwich complexes, M2(?5-Sb5)2. Eclipsed and staggered conformations are generated due to ?5 mode of binding by Sb5- ligand with alkaline earth metals (Be Mg metals). The complexes thermodynamically stable at room temperature. electron density descriptors natural bond orbital (NBO) analysis confirmed covalent nature M-M bond. Both Be2(?5-Sb5)...

Soot was harvested from five combustion sources: a dodecane flame, marine and bus diesel engines, a wood stove, and an oil furnace. The soots ranged from 20% to 90% carbon by weight and molar C/H ratios from 1 to 7, the latter suggesting a highly condensed aromatic structure. Total surface areas (by nitrogen adsorption using the Brunauer Emmett Teller, BET method) ranged from 1 to 85 m2 g(-1). ...

Let M be a right R-module. We call M Rad-H-supplemented iffor each Y M there exists a direct summand D of M such that(Y + D)/D (Rad(M) + D)/D and (Y + D)/Y (Rad(M) + Y )/Y .It is shown that:(1) Let M = M1M2, where M1 is a fully invariant submodule of M.If M is Rad-H-supplemented, thenM1 andM2 are Rad-H-supplemented.(2) Let M = M1 M2 be a duo module and Rad--supplemented. IfM1 is radical M2-...