نتایج جستجو برای: 254

تعداد نتایج: 7177  

Journal: :Journal of the American College of Cardiology 2002
Akiko Maehara Gary S Mintz Anh B Bui Olga R Walter Marco T Castagna Daniel Canos August D Pichard Lowell F Satler Ron Waksman William O Suddath John R Laird Kenneth M Kent Neil J Weissman

OBJECTIVES This study was designed to report the clinical and angiographic correlates of plaque rupture detected by intravascular ultrasound (IVUS). BACKGROUND Acute coronary syndromes result from spontaneous plaque rupture and thrombosis. METHODS We report 300 plaque ruptures in 257 arteries in 254 patients. Plaque ruptures were detected during pre-intervention IVUS. Standard clinical, ang...

Journal: :Earth and Space Science 2022

Abstract The process of continental growth and closure the Paleo‐Asian Ocean are controversial. To address this problem, we report new geochemical geochronological data granitic rocks along a N‐S corridor Dananhu arc. These yield 401–270 Ma U‐Pb zircon ages. arc‐related granites enriched in light rare earth elements (LREE), Rb, Ba, Th, Sr Pb, but depleted Nb Ta, have high zircons values ε Hf (t...

2008
A. Dobrzyn

s of plenary lectures, review sessions and orals sessions were originally published in OBESITY FACTS 4/2008 (S. Karger AG, Basel) ISBN 978-80-254-2733-0 THE ROLE OF STEAROYL-COA DESATURASE IN THE DEVELOPMENT OF HEPATIC STEATOSIS

Journal: :Chemosphere 2021

Advanced oxidation processes (AOPs) play a vital role in attenuating contaminants of emerging concern (CECs) during potable water reuse. AOPs are conventionally performed by irradiating with 254-nm low-pressure (LP) mercury-vapor (Hg) ultraviolet (UV) lamp along chemical treatment. Compared UV-C light treatment (200–280 nm), vacuum-UV (V-UV) (100–200 nm) is advantageous terms hydroxyl radical g...

Journal: :Journal of physics 2023

Abstract The structure of the 102 254 No 152 nucleus has been studied for more than 20 yea...

Journal: :Zeitschrift fur Naturforschung. Section C, Biosciences 1975
W W Fäth M Brendel

In haploid and diploid S. cerevisiae the dimer yield ratio TT/CT is found to be 1.2/1 and 1.3/1, resp., at the UV (254 nm) unit dose 1 erg/mm2, the share of TT and CT in a UV (254 nm) lethal hit being 0.7 TT and 0.6 CT. A general formulation of the UV lethal hit is given and discussed. The TT+CT yields obtained for S. cerevisiae are compared to those reported for other organisms. It is found th...

2012
Minoru Tomita George O Waring Miyuki Watabe

PURPOSE To compare two different femtosecond lasers used for flap creation during laser-assisted in situ keratomileusis (LASIK) surgery in terms of their effects on the corneal endothelium. METHODS We performed LASIK surgery on 254 eyes of 131 patients using IntraLase FS60 (Abbott Medical Optics, Inc, Irvine, CA; IntraLase group) and 254 eyes of 136 patients using Femto LDV (Ziemer Group AG, ...

Journal: :Clinical chemistry 1979
S H Petersdorf V A Raisys K E Opheim

We describe the use of "high-performance" liquid chromatography to measure chloramphenicol in as little as 25 microL of serum. Serum is treated to precipitate proteins with acetonitrile containing p-nitroacetanilide as an internal standard. Chloramphenicol is eluted with a mobile phase of methanol in pH 7.0 phosphate buffer (35/65 by vol). The drug is measured at 278 nm and simultaneously monit...

Journal: :Chromatographia 2009
P. D. Bari A. R. Rote

Two new, rapid, precise, accurate and specific chromatographic methods were described for the simultaneous determination of olmesartan medoxomil and hydrochlorothiazide in combined tablet dosage forms. The first method was based on reversed phase liquid chromatography using an Eurosphere 100 RP C18 column (250 x 4.6 mm ID, 5 mum). The mobile phase was methanol-0.05% o-phosphoric acid (60:40 v/v...

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