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Articles by M. Maleki
Total Records ( 4 ) for M. Maleki
  M. Mosayebi , G. Amin , H. Arzani , H. Azarnivand , M. Maleki and A. Shafaghat
  Achillea filipendulina L. was collected in full flowering stage from 3 different habitats in north-west of Iran. Essential oil of flowers was obtained using cellevenger apparatus and chemical composition were analyzed by GC and GC/MS and identified in comparison with authentic compounds. The objectives of this research were to describe the habitat conditions and to determine the chemical composition and the percent of essential oils in these three habitats and finding the effect of habitat on the yields of essential oils. The average yields of essential oils were to 0.53 v/w% and the major compounds in 3 habitats were: Santolina triene, α-pinene, Camphene, Ortho-cymene, 1, 8-cineole, Santolina alcohol, Pinocarvone, Borneol, Terpinen-4-ol, Bornyl acetate and Neryl acetate.
  K. Mahdavi , A. Sanadgol , H. Azarnivand , S. Babaei Kafaki , M. Jafari , M. Maleki and A. Malekian
  The objective of this research was to investigate the effects of removing aerial biomass and density of Atriplex lentiformis plantation on carbon sequestration and biomass in a split-split plot design with three replications in Ardestan, Iran. The results revealed that the highest amount of carbon sequestration produced by treatment of 2x2 m row spacing, annual removing and control height removal. The values of carbon storage of aerial biomass, among row spacing and removal of aerial biomass treatments were significantly different (p < 0.05). The highest carbon storage content was related also to 2x2 m row spacing and control with 60 cm height removing. None of the treatments was significantly different, concerning soil carbon storage (p < 0.05). Moreover, the highest biomass weight was in row spacing of 2x2 m while the lowest value was recorded in 6x6 m.
  H. Panahi and M. Maleki
  The binding energies of donor states (1s, 2s, 2px, 3px) in GaAs-Ga0.7Al0.3As quantum wells are investigated with a variational method under hydrostatic pressure. In the calculation, we take into account the electronic effective mass, dielectric constant and conduction band offset between the well and barriers varying with pressure. Results obtained show that the donor binding energy variation with the well width and the position of impurity under pressure is similar to that without pressure. Also the donor binding energy increases linearly with pressure for all of states in direct gap regime.
  A.A. Jannatabadi , G.R. Mohammadi , M. Rad and M. Maleki
 

The objective of this study was to evaluate the existence of Streptococcus equi subsp. equi and Streptococcus equi subsp. zooepidemicus as probable agents associated with naturally occurring infection of the equine upper respiratory disease in Mashhad area. Nasal swabs samples from thirty horses with upper respiratory tract infections were collected. The bacteria isolated and identified were Streptococcus equi subsp. equi (1 isolate), Streptococcus equi subsp. zooepidemicus (25 isolates), Pasteurella sp. (11 isolates), Staphylococcus sp. (17 isolates), Bacillus sp. (4 isolates), Pseudomonas sp. (4 isolates), Proteus sp. (1 isolate), Neisseria sp. (1 isolate) and E. coli (1 isolate). All 25 isolates of Streptococcus equi subsp. zooepidemicus and the isolate of Streptococcus equi subsp. equi were characterized by biochemical tests and molecular techniques. For molecular identification of the subspecies S. equi and S. zooepidemicus two genomic region SeM and sodA were amplified. This study is the first report of molecular identification of Streptococcus equi subsp. equi and Streptococcus equi subsp. zooepidemicus in Iran.

 
 
 
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