نتایج جستجو برای: lation

تعداد نتایج: 966  

1999
John G. Stell

In multi-resolution data handling, a less detailed structure is often derived from a more detailed one by amalgamating elements which are indistinguishable at the lower level of detail. This gathering together of indistinguishable elements is called a granulation of the more detailed structure. When handling spatial data at several levels of detail the gran-ulation of graphs is an important top...

1995
Ilan Sharfer Alfred O. Hero

Maximum Likelihood (ML) estimation method for simultaneous amplitude, time delay, and data demodu-lation in direct sequence spread spectrum communication is proposed. The likelihood function is analytically intractable, so we consider a recursive estimation algorithm. The Expectation-Maximization (EM) algorithm has found increasing use in similar problems, however, for this case it is analytica...

Journal: :Cancer research 1968
R Rubin E Owens D Rall

Methotrexate-3H was accumulated in vitro against a con centration gradient by the rabbit choroid plexus. This accumu lation was energy dependent, inhibited by metabolic inhibitors, and exhibited self-saturation and competitive inhibition. Several folie acid analogs with a 4-amino group were inhibitors of this accumulation, while folie and folinic acid, compounds which do not contain a 4-amino g...

2006
Eugenie S. Kleinerman Leonard A. Zwelling Andrew V. Muchmore

The effect of the antineoplastic agent c/s-diamminedichloroplatinum(ll) (c/s-DDP) on spontaneous cytotoxicity of human mononuclear cells in vitro was assessed. c/s-DDP enhanced spontaneous monocyte-mediated cytotoxicity 300% compared to control values. Further, this spontaneous monocyte killing developed earlier (3 to 4 days) than did that of untreated cells (5 to 7 days). Since monocyte cytoto...

1963
Robert Murray

ai)(j f?rce in shaping public opinion lhat 'l ^Uencing government action so t0 before considering their attitude ?ntal health there is some advanorta ̂ re.caUing a few facts about their Tran Sati?n in this country. At the ^Und '~frL^on Congress of 1962, one w** and eighty two trade unions shir. rfPresented with a total memberarp ? 8,312,875. Not all trade unions unio 'ated to TUC but the total a...

2009
Nicolas Kalfa Reiner A Veitia Bérénice A Benayoun Brigitte Boizet - Bonhoure Charles Sultan

Kalfa et al.: Genome Medicine 2009, 1:81 Abstract Granulosa cell tumors (GCTs) of the ovary belong to the group of ovarian sex-cord stromal tumors and represent 5 to 10% of ovarian malignancies. GCTs exhibit several morphological, biochemical and hormonal features of normal proliferating preovulatory granulosa cells, such as estrogen biosynthesis. Prognostic factors of this condition are lackin...

2007
Sheng - Jun DAI Gong - Fu WANG Meng CHEN Ke LIU

lation of five neo-clerodane diterpenoid alkaloids from the aerial parts of Scutellaria barbata. As part of our continuing work to discover more novel neo-clerodane diterpenoids, we have re-investigated the aerial parts of this species and isolated the previously isolated scutebarbatine B (6), scutebarbatine D (7) and scutebarbatine F (8), together with five new neo-clerodane diterpenoid alkalo...

2010
Matthias Hauser

The aim of this work is to assist designing of robust circuits to minimize the amount of defective circuits and therefore to increase the yield of production. The Fraunhofer ITWM considers electronic circuits at system level using its EDA software Analog Insydes, which allows analysis and symbolic approx ima tion of nominal analog circuits. The software now has been extended to handle parameter...

1992
R. Brower

The Fortuin-Kasteleyn mapping between the Ising model and the site-bond correlated perco-lation model is shown to be only one of an infinite class of exact mappings. These new cluster representations are a result of " renormalized " percolation rules correlated to entire blocks of spins. For example these rules allow for percolation on " virtual " bonds between spins not present in the underlyi...

Journal: :International journal of epidemiology 2002
Gabriel Scally

edu cation al risk m an agem en t: th e case of 'gym slip' m u m s. 22 Han n a B. Negotiatin g m oth erh ood: th e stru ggles of teen age m oth ers. Golden berg RL, Klerm an LV. Adolescen t pregn an cy—an oth er look. con sideration s on postpon em en t of m atern ity in Eu rope. Matern al age an d fetal loss: popu lation based register lin kage stu dy. separate con tribu tion s to perin atal m...

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