abstract rosa damascena has attracted considerable attention in horticulture, biochemistry and in pharmacology because of the fragrance of the flowers and the high content of its bio-logically active substances. there is limited information available on factors controlling flower yield and its components. the present study reports an investigation on flower yield and the various factors affect...

in order to investigate effects of plant density and fertilizer rates on agronomic characteristic and yield tobacco (nicotiana tabacum) (cv k326) an experiment was conducted in the experimental field of tirtash research and education center. design of experiment was randomized complete block with factorial arrangement with three replications and 36 treatments conducted in 2007 year. treatments ...

We model thermal X-ray emission from the accreting supermassive black hole Sagittarius A* at the Galactic Center. For the region inside 1.5 of the center, we use a generalized radiatively inefficient accretion flow (RIAF) model, and for the region out to 10 we use published models of the ambient hot gas. We calculate the equivalent widths of Hydrogen-like and Helium-like emission lines of vario...

Yardangs are one of the most amazing geomorphic features of Lut desert, Iran developed in alluvial deposits of Pleistocene. They appear as the streamlined hills that are separated by U-shaped troughs with a flat-topped. The study of yardang’s morphometric parameters is important to define their morphological indices. In This study, we describe the morphology of yardangs in the Lut playa, analyz...

When an unperturbed Hamiltonian is degenerate and some resonance conditions are satisfied a stochastic web is formed. A classical example of this phenomena is the wave-particle interaction in a constant uniform magnetic field. Recently, Dana has observed that for wide wave packets, the initial position of the cyclotron orbit center, xc. may influence dramatically the diffusion of particles in p...

A bubble model is a 2-dimensional representation of proper interval graphs. We consider proper interval graphs that have bubble models of specific properties. We characterise the maximal such proper interval graphs of bounded clique-width and of bounded linear cliquewidth and the minimal such proper interval graphs whose clique-width and linear cliquewidth exceed the bounds. As a consequence, w...

the biologic width (bw) includes attached epithelial cells and connective tissue attachment complex being very important in the periodontal health during prosthetic treatments as invading this zone can cause bone resorption and gingival recession. the present study investigated biologic width values in the normal periodontium in anterior and posterior teeth. 30 patients that referred from resto...

Electrical uncoupling of crayfish septate lateral giant axons is paralleled by structural changes in the gap junctions. The changes are characterized by a tighter aggregation of the intramembrane particles and a decrease in the overall width of the junction and the thickness of the gap. Preliminary measurements indicate also a decrease in particle diameter. The uncoupling is produced by in vitr...

In August 2014, a large sinkhole with width of 2.5m, depth 5m, and length 8m was discovered in Seoul followed by an additional 5-8m, 4-5m, 70m the center Seokchon underground driveway