نتایج جستجو برای: کدهای mds
تعداد نتایج: 9245 فیلتر نتایج به سال:
BACKGROUND In spite of the recent discovery of genetic mutations in most myelodysplasic (MDS) patients, the pathophysiology of these disorders still remains poorly understood, and only few in vivo models are available to help unravel the disease. METHODS We performed global specific gene expression profiling and functional pathway analysis in purified Sca1+ cells of two MDS transgenic mouse m...
We discuss methodology for multidimensional scaling (MDS) and its implementation in two software systems, GGvis and XGvis. MDS is a visualization technique for proximity data, that is, data in the form of N × N dissimilarity matrices. MDS constructs maps (“configurations,” “embeddings”) in IRk by interpreting the dissimilarities as distances. Two frequent sources of dissimilarities are high-dim...
فرض کنید (n_q(k,dکوچکترین مقدار nباشد به طوری که یک [n,k,d] -کد خطی روی gf(q وجود داشته باشد. یک [n,k,d] -کد که طولی مساوی با (n_q(k,d داشته باشد بهینه نامیده می شود. مساله پیدا کردن (n_q(k,d برای مورد q=2 بیشتر مورد توجه قرار گرفته است. ما در این پایان نامه (n_q(k,d را برای q=3,4 و k<5 و با روشی جدید برای q=7 با k<4 وچند مورد برای q=7 بررسی می کنیم.
ابتدا به تولید کدهای نوع دوم اکسترمال به طول 8n روی z_4 پرداخته سپس بااستفاده از مینیمم وزن همینگ دوآل کد باقیمانده، کدهای خوددوآل لی بهینه و همینگ بهینه از طول 19 تا 24 را بررسی می کنیم و همچنین با استفاده از چندجمله ای های ناوردا، وزن همینگ بهینه برای برخی کدهای خوددوآل به طول 8n روی z_4 را به دست می آوریم.
although aplastic anemia (aa) and myelodysplastic syndrome (mds) are separate entities with different management, distinction between the two can be difficult on morphological basis due to hypocellularity of bone marrow. mds is one of the serious complications of aa. karyotyping is definitive in the diagnosis of mds. better and robust investigations like 18f-fluoro-deoxy-glucose positron emissi...
There remains a useful relation between diffusion and mobility for a Langevin particle in a periodic medium subject to nonconservative forces. The usual fluctuationdissipation relation easily gets modified and the mobility matrix is no longer proportional to the diffusion matrix, with a correction term depending explicitly on the (nonequilibrium) forces. We discuss this correction by considerin...
Group classification of systems of two coupled nonlinear reaction-diffusion equation with a diagonal diffusion matrix is carried out. Symmetries of diffusion systems with singular diffusion matrix and additional first order derivative terms are described.
Genomic instability induces an accumulation of genetic changes and may play a role in the pathogenesis of myelodysplastic syndromes (MDS). To clarify the possible association between genomic instability and clinical outcome in MDS patients, we compared telomere dynamics to the recently established International Prognostic Scoring System (IPSS) risk groups for MDS. We measured the terminal restr...
Myelodysplastic syndrome (MDS) with hypocellular bone marrow (BM) is often difficult to distinguish from aplastic anemia (AA). Furthermore, the diagnosis of MDS with low blast counts and normal karyotype may be problematic. These issues highlight the need for a reliable marker for the diagnosis of MDS. This study was conducted to determine if changes of mRNA expression in any of the four select...
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