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تعداد نتایج: 16909606 فیلتر نتایج به سال:
Graphene, whose absorbance is approximately independent of wavelength, allows broadband light-matter interactions with ultrafast responses. The interband optical absorption of graphene can be saturated readily under strong excitation, thereby enabling scientists to exploit the photonic properties of graphene to realize ultrafast lasers. The evanescent field interaction scheme of the propagating...
Article history: Received on: 30/08/2012 Revised on: 09/09/2012 Accepted on: 15/09/2012 Available online: 28/09/2012 In the present study, Chitin has been extracted from Podophthalmus vigil. The obtained chitin was transformed into the more useful chitosan we evaluated the antimicrobial activity of different concentrations (25%, 50%, 75% and 100%) of chitosan against 10 species of bacteria and ...
A concise and efficient synthetic approach to producing a novel non-cyclic nucleotide EPAC antagonist ESI-09 and its new analogs is reported. Key features of the synthesis include a mild and reliable one-pot procedure for an isoxazole synthon, as well as a modified one-pot protocol for the cyanomethyl ketone key intermediate. The synthesis requires inexpensive starting materials and only three ...
The present study was aimed to analyze the frequencies of human leukocyte antigen (HLA)-A, -B, and -DRB1 alleles and A-B-DRB1, A-B, A-DRB1 and B-DRB1 haplotypes in inhabitants of Guizhou province, China. All samples were typed in the HLA-A,-B, and -DRB1 loci using the polymerase chain reaction-reverse sequence specific oligonucleotide probe (PCR-rSSOP) method and HLA polymorphisms were analyzed...
Significant dropping of infectious disease is owned greatly to antibiotic development industry. Due to prevalence of drug resistance organisms alongside with other problems, scientists are focusing on medicinal plants. Medicinal plants and their antimicrobial components are attractive alternatives for antibiotics. In the present project, the antimicrobial effects of methanolic extract and fract...
Studies were conducted to determine the selection of humans, chickens and rabbits by Culicidae in three different environments in the province of Chaco, Argentina. Mosquitoes were collected fortnightly using cylindrical metal traps containing animal bait (chickens and rabbits). The mosquitoes were collected between June 2001-May 2002. During the same period and with the same frequency, mosquito...
; Published online before print September 26, 2012; Neurology Joshua M. Shulman and Julie A. Schneider disease Molecular mechanisms of cortical degeneration in Parkinson October 15, 2012 This information is current as of http://www.neurology.org/content/early/2012/09/26/WNL.0b013e31827040c6 located on the World Wide Web at: The online version of this article, along with updated information and ...
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