نتایج جستجو برای: molecular absorption methods

تعداد نتایج: 2544066  

Journal: :Physical chemistry chemical physics : PCCP 2012
Fan Gao Erdong Yao Wei Wang Hao Chen Yuguo Ma

We have developed an absorption spectrum based molecular ruler that measures the distance between two mercapto groups. The conformation of the molecular rulers changes with the distance, which induces an absorption spectrum change. DFT calculation has been carried out to elucidate the relation between the molecular conformation and the absorption spectrum. With this simple method, we can estima...

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1996
M. J. Drinkwater F. Combes T. Wiklind

We describe a search for molecular absorption at millimetre wavelengths associated with dusty molecular tori in active galactic nuclei (AGN). The sample observed consists of 11 flat-spectrum radio sources known to have red optical to infra-red colours plus two steep-spectrum narrow-line radio galaxies. Spectra of the sources were obtained in the 3-, 2-and 1.3-millimetre bands at frequencies cor...

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ژورنال: Medical Laboratory Journal 2014
Chaichi, MJ, Khosravi, F, Mohadjerani, M, Mohseni, M,

Abstract Background and Objectives: Contamination of environment to lead and copper is rising due to human activities. One of the best methods to remove heavy metals from the environment is bacterial remediation. This study aimed to isolate bacteria and investigate the mechanism of lead and copper bioremediation. Material and Methods: Heavy metal resistant bacteria were isolated from contaminat...

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1998
Karl M. Menten Christopher L. Carilli Mark J. Reid

We have made radioand millimeter-wavelength interferometric observations of a variety of molecular absorption lines toward the gravitational lens systems B0218+357 and PKS 1830−211. The absorption occurs in the lensing galaxies at redshifts of 0.685 and 0.89, respectively. The high spatial resolution of our VLA and VLBA observations allows imaging of the background continuum emission and the ab...

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Journal: Iranian Biomedical Journal 2010
Fatemeh Kheradmand, Issa Nourmohammadi, Mohammad Amin Ahmadi-Faghih, Mohammad Hossein Modarressi, Mohsen Firoozrai,

Background: Zinc (Zn) as an important trace element is essential for testicular development and spermatogenesis. Molecular mechanism of Zn action in the reproductive system may be related to metal binding low-molecular weight proteins, metallothioneins (MT). Our objective was to determine the effect of Zn on two important isoforms of MT, MT1M and MT1G genes expression on testicular sertoli cell...

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Journal: Iranian Journal of Pathology 2018
Amir Sohrabi, Massoud Hajia,

Clinical manifestations of the brucellosis may show extensive appearance because of its wide signs and symptoms. Patients with brucellosis are usually symptomatically treated by using different antibiotics at private clinics due to misdiagnosis of clinical laboratory findings specially those chronic forms. These subjects will have been hospitalized with a complicated form of signs after changin...

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Journal: :Journal of Antimicrobial Chemotherapy 2001

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Journal: Iranian Journal of Applied Animal Science 2012
A.R. Khan Ahmadi E. Dehnavi, L. Shahmohamadi M. Ahani Azari M. Mohajer M.R. Nassiry S. Hasani S. Yousefi

Genotypes of Iranian Zel sheep for Calpastatin(CAST) locus were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) methods and for Calpain(CAPN) locus by PCR-SSCP. Blood samples were collected from 200 purebred Zel sheep of Zel Breeding Station located in Golestan province i...

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ژورنال: Medical Laboratory Journal 2014
Ahmadi, M, Banihashemi, R, Eramabadi, M, Eramabadi, P, Ghaderi, R, Keshavarz, R, Khodaverdi Daryan, E, Mosavari, N, Sekhavati, M, Tadayon, K,

Abstract Background and Objective: A high level of homogeneity observed within all bacteria in the Mycobacterium tuberculosis complex makes a property that seriously challenges traditional biochemical-based identification methods of these pathogens in the laboratory. The work presented here was conducted to characterize Mycobacterium tuberculosis complex isolates in Golestan, Northern Iran. ...

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Journal: :Linear Algebra and its Applications 2019

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