نتایج جستجو برای: شاخص رنگ 2g
تعداد نتایج: 94142 فیلتر نتایج به سال:
In this note, we study the distribution of closed geodesics in homology on a finite area hyperbolic surface. We obtain an estimate which is uniform as the homology class varies, refining an asymptotic formula due to C. Epstein. 0. Introduction Let M be a finite area hyperbolic surface, i.e., the quotient of the hyperbolic plane H by the free action of a group of isometries such that the fundame...
We show that polarisations of type (1, ..., 1, 2g + 2) on g-dimensional abelian varieties are never very ample, if g ≥ 3. This disproves a conjecture of Debarre, Hulek and Spandaw. We also give a criterion for non-embeddings of abelian varieties into 2g + 1-dimensional linear systems.
A good way to understand an object of study is, as Richard Feynman famously remarked, to “just look at the thing!”. In this paper we apply Feynman’s method to answer the following question: given a surface group representation in Sp(4,R), under what conditions can it be deformed to a representation which factors through a proper reductive subgroup of Sp(4,R)? A surface group representation in a...
Gravity change affects many immunological systems. We investigated the effects of hypergravity (2G) on murine thymic cells. Exposure of mice to 2G for three days reduced the frequency of CD4+CD8+ thymocytes (DP) and mature medullary thymic epithelial cells (mTECs), accompanied by an increment of keratin-5 and keratin-8 double-positive (K5+K8+) TECs that reportedly contain TEC progenitors. Where...
A field experiment was conducted at the `Research Farm` of Regional Seed Production Office of Lal Teer Seed Limited, Dinajpur, Bangladesh during November 2008 to April 2009. The study was conducted to investigate the effect of bulb size and planting spacing on seed production of cultivar Taherpuri onion. Three bulb sizes [small (5±2g), medium (10±2g), and large (15±2g)] and four planting spacin...
AIM To evaluate the behaviour of two fast-setting polymethylmethacrylate (PMMA) cements CMW® 2G and Palacos® fast R + G, as reference: Standard-setting Palacos® R + G. METHODS The fast-setting cements CMW® 2G and Palacos® fast R + G were studied, using standard-setting high viscosity Palacos® R + G as a reference. Eleven units (of two batch numbers) of each cement were tested. All cements wer...
زمینه وهدف: شدت روشنایی کافی، دمای رنگ و شاخص تجلی رنگ مناسب و محدود کردن تابشهای خیره کننده منابع روشنایی، به منظور تأمین روشنایی مطلوب ازجمله نیازهای شاغلین است که در طراحی سامانه روشنایی می بایست مورد توجه قرار گیرد. هدف پژوهش حاضر بررسی مؤلفه های اپتیکی لامپ های فلورسنت فشرده متداول است. روش بررسی: در این مطالعه 48 شعله لامپ فلورسنت فشرده موجود در بازار مصرف انتخاب و شدت روشنایی؛ درخشند...
Background and Objective: Studies suggests that matrix metalloproteinase (MMP)-2-1306 C/T and MMP-1-1607 1G/2G polymorphisms affect the risk of prostate cancer. However, the conclusions remain controversial and no pooled evidence of this topic has been published. Therefore, we aimed to perform a meta-analysis to shed some light on the controversial conclusion pertaining to the associations of M...
BACKGROUND AND PURPOSE The matrix metalloproteinases (MMPs) are a family of enzymes that are important in the resorption of extracellular matrix and are involved in atherogenesis. Recently, 2 common polymorphisms on MMP-1 (1G/2G) and MMP-3 (5A/6A) gene promoters have been described. The aim of this study was to investigate a possible association between MMP polymorphisms and increased risk of i...
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