نتایج جستجو برای: low density particles

تعداد نتایج: 1637321  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده علوم 1391

سنتز پلیمرهای کوئوردیناسیونی جدید از لیگاندهای 2-آمینو نیکوتینیک اسید، 2-کینولین کربوکسیلیک اسید، 2-پیرازین کربوکسیلیک اسید در ابعاد توده، با روش گرایان دمایی و با استفاده از شاخه ی جانبی انجام شده است، این پلیمرها توسط روش طیف سنجی ir شناسایی و پایداری گرمایی آن ها توسط تجزیه های وزن سنجی حرارتی (tga) و تجزیه ی گرمایی تفاضلی (dta) بررسی شده است. در ادامه، ساختار این ترکیبات توسط بلورنگاری پرتو...

Journal: :Arteriosclerosis 1983
J P Kane G C Chen R L Hamilton D A Hardman M J Malloy R J Havel

We used the low molecular weight form of apolipoprotein B (B-48) as a marker for the identification of remnant particles formed from chylomicrons in the plasma of patients with familial dysbetalipoproteinemia. In the serum of patients fasted 14 hours, the d less than 1.006 g/cm3 lipoproteins of prebeta mobility, separated by starch block electrophoresis, contained only the primary hepatogenous ...

اعظم انبارکی, , زهرا امینی لاری , , زهره کارگر, ,

The knowledge of nuclear reaction rates is important for studying energy production and nucleosynthesis, especially in reactions including nuclei far from stability line, which are not accessible experimentally so far and thus it is necessary to be able to predict reaction cross sections in low excitation energies. Nuclear level density is one of the important key quantities in many nuclear phy...

Journal: :acta medica iranica 0
manoochehr nakhjavani department of endocrinology, school of medicine, tehran university of medical sciences, tehran, iran. firouzeh asgarani department of endocrinology, school of medicine, tehran university of medical sciences, tehran, iran. fatemeh esfahanian department of endocrinology, school of medicine, tehran university of medical sciences, tehran, iran. alireza esteghamati department of endocrinology, school of medicine, tehran university of medical sciences, tehran, iran.

accumulating evidence suggest that in patients with diabetes mellitus, increased rate of lipoprotein oxidation and oxidative stress have important role in diabetic angiopathy, including nephropathy. to evaluate the association of oxidized low- density lipoprotein (ox-ldl) with the development of diabetic nephropathy, plasma level of ox-ldl were measured in 70 diabetic patients with macro and 63...

Journal: :پژوهش های علوم و فناوری چوب و جنگل 0

particle size, board density and adhesive content are the most important factors, influencing on physical and mechanical properties of particleboard. in this study the effects of density, adhesive content and particle size on withdrawal strength of particleboard made from populus (populus alba) particles have been studied. three levels of density including 0.65, 0.7, and 0.75 g/cm3, three level...

Journal: :Arteriosclerosis, thrombosis, and vascular biology 2017
Rutger Verbeek Marjorie Boyer S Matthijs Boekholdt G Kees Hovingh John J P Kastelein Nicholas Wareham Kay-Tee Khaw Benoit J Arsenault

OBJECTIVE Carriers of the PCSK9 (proprotein convertase subtilisin/kexin 9) R46L genetic variant (rs11591147) are characterized by low levels of low-density lipoprotein cholesterol and a decreased risk of cardiovascular disease. We studied the impact of the R46L variant on lipoprotein size and composition. APPROACH AND RESULTS Lipoprotein size and composition were measured by nuclear magnetic ...

Journal: :medical journal of islamic republic of iran 0
ladan hosseini gohari faculty of allied medicine and cellular and molecular research center of iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: cellular and molecular research center romina karimzadeh ghassab iran university of medical sciences. tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) mohsen firoozray faculty of medicine, iran university of medical sciences.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) abbas zavarehee shahid rajaii heart center, tehran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) hossein ali basiri shahid rajaii heart center, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)

abstract   background: recently, small dense low density lipoprotein (sdldl) has been highlighted as a new risk factor for the coronary artery disease (cad).small dense ldls are believed to be atherogenic since these particles are taken up more easily by arterial wall. they are readily oxidized and have reduced affinity for low density lipoprotein (ldl) receptor and increased affinity for arter...

Journal: :Physical review letters 2013
Oleksandr Chepizhko Fernando Peruani

We study the transport properties of a system of active particles moving at constant speed in a heterogeneous two-dimensional space. The spatial heterogeneity is modeled by a random distribution of obstacles, which the active particles avoid. Obstacle avoidance is characterized by the particle turning speed γ. We show, through simulations and analytical calculations, that the mean square displa...

2015
Michael J. Koren Dean Kereiakes Ray Pourfarzib Deborah Winegar Poulabi Banerjee Sara Hamon Corinne Hanotin James M. McKenney

BACKGROUND In patients with discordance between low-density lipoprotein (LDL) cholesterol and LDL particle (LDL-P) concentrations, cardiovascular risk more closely correlates with LDL-P. METHODS AND RESULTS We investigated the effect of alirocumab, a fully human monoclonal antibody to proprotein convertase subtilisin/kexin type 9, on lipoprotein particle concentration and size in hypercholest...

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