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Showing 1 to 12 of 127 entries
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Sustaining GHz oscillation of carbon nanotube based oscillators via a MHz frequency excitation.

Nanotechnology

Motevalli B, Taherifar N, Liu JZ.
PMID: 27070404
Nanotechnology. 2016 May 20;27(20):205501. doi: 10.1088/0957-4484/27/20/205501. Epub 2016 Apr 12.

There have been intensive studies to investigate the properties of gigahertz nano-oscillators based on multi-walled carbon nanotubes (MWCNTs). Many of these studies, however, revealed that the unique telescopic translational oscillations in such devices would damp quickly due to various...

Solid State Dynamics of Tricarbonyl(eta-1,5-cyclohexadienylium)iron Tetrafluoroborate and Tricarbonyl(eta-1,5-cycloheptadienylium)iron Tetrafluoroborate.

Inorganic chemistry

Brougham DF, Barrie PJ, Hawkes GE, Abrahams I, Motevalli M, Brown DA, Long GJ.
PMID: 11666751
Inorg Chem. 1996 Sep 11;35(19):5595-5602. doi: 10.1021/ic951573t.

The dynamic behavior of [(C(6)H(7))Fe(CO)(3)]BF(4) (I) and [(C(7)H(9))Fe(CO)(3)]BF(4) (II) in the solid state has been investigated principally by NMR spectroscopy. High-resolution variable-temperature (1)H and (13)C NMR spectra indicate that both complexes have a solid state phase transition above which...

11-Methyl-2,3-benzodipyrrin-1-one.

Acta crystallographica. Section C, Crystal structure communications

Bonnett R, Motevalli M, Swanson FJ, Vallés MA.
PMID: 15579975
Acta Crystallogr C. 2004 Dec;60:o890-2. doi: 10.1107/S0108270104026708. Epub 2004 Nov 23.

The title compound {alternative names: 11-methyl-2,3-benzopyrromethenone and 3-[(1-methylpyrrol-2-yl)methylidene]-2,3-dihydro-1H-isoindol-1-one}, C(14)H(12)N(2)O, was prepared by the base-catalysed condensation of phthalimidine with 2-formyl-1-methylpyrrole; yellow orthorhombic crystals, space group Pbca, were obtained from ethanol. The molecule is almost planar, having Z(-)antiperiplanar geometry. The molecules...

The reactivity, as electrogenerated bases, of chiral and achiral phenazine radical-anions, including application in asymmetric deprotonation.

Organic & biomolecular chemistry

Alonso AM, Horcajada R, Motevalli M, Utley JH, Wyatt PB.
PMID: 16032362
Org Biomol Chem. 2005 Aug 07;3(15):2842-7. doi: 10.1039/b506309d. Epub 2005 Jul 01.

Radical-anions, electrochemically generated in aprotic solvent from C(2) symmetric homochiral phenazine derivatives, act as chiral electrogenerated bases (EGBs) in the desymmetrisation by selective deprotonation of a prochiral epoxide (3,4-epoxy-2,3,4,5-tetrahydrothiophene-1,1-dioxide); the anion produced is trapped by mesitoic anhydride. The phenazines...

Rhenium-to-benzoylpyridine and rhenium-to-bipyridine MLCT excited states of fac-[Re(Cl)(4-benzoylpyridine)(2)(CO)(3)] and fac-[Re(4-benzoylpyridine)(CO)(3)(bpy)](+): a time-resolved spectroscopic and spectroelectrochemical study.

Inorganic chemistry

Busby M, Matousek P, Towrie M, Clark IP, Motevalli M, Hartl F, Vlcek A.
PMID: 15236567
Inorg Chem. 2004 Jul 12;43(14):4523-30. doi: 10.1021/ic049659m.

The lowest allowed electronic transition of fac-[Re(Cl)(CO)(3)(bopy)(2)] (bopy = 4-benzoylpyridine) has a Re --> bopy MLCT character, as revealed by UV-vis and stationary resonance Raman spectroscopy. Accordingly, the lowest-lying, long-lived, excited state is Re --> bopy (3)MLCT. Electronic depopulation...

Catalytic and mechanistic studies into the epoxidation of styrenes using manganese complexes of structurally similar polyamine ligands.

Organic & biomolecular chemistry

Ilyashenko G, De Faveri G, Follier T, Al-Safadi R, Motevalli M, Watkinson M.
PMID: 24395191
Org Biomol Chem. 2014 Feb 21;12(7):1124-34. doi: 10.1039/c3ob42274g.

Two structurally similar polyamine ligands (7 and 8) have been prepared, which differ only by the presence of either a secondary or tertiary nitrogen donor within their N5 donor set. The ligands, in combination with iron and manganese salts,...

A novel approach to isoindolo[2,1-a]indol-6-ones.

Organic & biomolecular chemistry

Duncanson P, Cheong YK, Motevalli M, Griffiths DV.
PMID: 22526377
Org Biomol Chem. 2012 Jun 07;10(21):4266-79. doi: 10.1039/c2ob25314c. Epub 2012 Apr 24.

A convenient route to isoindolo[2,1-a]indol-6-ones has been developed starting from the appropriate 2-(N-phthaloyl)benzoic acids. Formation of the acid chlorides with thionyl chloride followed by heating with triethyl phosphite in a suitable solvent resulted in a multistep reaction giving tetracyclic...

Screening, Cloning and Expression of Active Streptokinase from an Iranian Isolate of S.equisimilis Group C in E. coli.

Iranian journal of basic medical sciences

Keramati M, Roohvand F, Aslani MM, Khatami S, Aghasadeghi M, Sadat M, Memarnejadian A, Motevalli F.
PMID: 24250939
Iran J Basic Med Sci. 2013 Apr;16(4):620-7.

INTRODUCTION: Streptokinase (SK) is a fibrinolytic protein secreted by β-hemolytic streptococci (βHS) groups A, C and G. Due to its importance as a thrombolytic drug, national screening programs in different countries for isolation of βHS and especially SK-producing group...

Hydatid cyst of the knee: a case report.

Iranian journal of radiology : a quarterly journal published by the Iranian Radiological Society

Ghanaati H, Mohammadifar M, Ghajarzadeh M, Firouznia K, Motevalli M, Jalali AH.
PMID: 23329936
Iran J Radiol. 2011 Nov;8(3):170-2. doi: 10.5812/kmp.iranjradiol.17351065.3162. Epub 2011 Nov 25.

Hydatid disease is a parasitic infection which occurs in specific geographical areas such as the Mediterranean region. We report a case of hydatid cyst of the knee in a 34-year-old man who was admitted with inability to walk and...

Do Clinical and Demographic Features of Patients with Upper-Gastrointestinal Cancer Affect their Health-related Quality of Life?.

International journal of preventive medicine

Esmaili-Hesari RA, Homai-Shandiz F, Motevallian A, Madjd Z, Solaymani-Dodaran M, Asadi-Lari M.
PMID: 23189230
Int J Prev Med. 2012 Nov;3(11):783-90.

BACKGROUND: Oesophagogastric (OG) cancer as a globally common and deadly malignancy, which is widely spread in Northeast Iran, has an extensive impact on health-related quality of life (HRQL). Demographic and histopathologic changes have been apparent in oesophagogastric cancer, therefore....

Epidemiology of severe burn injuries in a Tertiary Burn Centre in Tehran, Iran.

Annals of burns and fire disasters

Mohammadi-Barzelighi H, Alaghehbandan R, Motevallian A, Alinejad F, Soleimanzadeh-Moghadam S, Sattari M, Lari AR.
PMID: 22262960
Ann Burns Fire Disasters. 2011 Jun 30;24(2):59-62.

The aim of the study was to examine the epidemiological characteristics of hospitalized burn patients in a tertiary burn centre in Tehran, Iran. A hospital-based cross-sectional study of all hospitalized patients with burn injuries was conducted in Motahari Burn...

Emergency Department Drug Surveillance (EDDS) hospital's urinalysis results compared with expanded re-testing by an independent laboratory, a pilot study.

Drug and alcohol dependence

Schwartz BE, Dezman Z, Billing AS, Heine K, Massey E, Artigiani EE, Motavalli M, Burch G, Gandhi P, Wish ED.
PMID: 34871979
Drug Alcohol Depend. 2021 Nov 26;230:109195. doi: 10.1016/j.drugalcdep.2021.109195. Epub 2021 Nov 26.

INTRODUCTION: Most hospital urine toxicology screens detect a fixed, limited set of common substances. These tests are fast and accurate but may miss emerging trends in substance use in the community and clinical acumen alone is insufficient for identifying...

Showing 1 to 12 of 127 entries