نتایج جستجو برای: ols

تعداد نتایج: 4866  

2009
Matthias Krause Dirk Stegemann

Authenti ation Proto ols Matthias Krause and Dirk Stegemann Theoreti al Computer S ien e University of Mannheim Mannheim, Germany Abstra t. The limited omputational resour es available on RFID tags imply a need for spe ially designed authenti ation proto ols. The light weight authenti ation proto ol HB+ proposed by Juels and Weis seems urrently se ure for several RFID appli ations, but is too s...

2016
Lei Lei Ying Yang Hongjuan He Erfei Chen Le Du Jing Dong Jin Yang

Although numerous in vitro studies and animal model data have suggested that flavan-3-ols, the most common subclass of flavonoids in the diet, may exert protective effects against cancer, epidemiologic studies have reported inconclusive results for the association between flavan-3-ols intake and cancer risk. Therefore, we conducted this meta-analysis of epidemiologic studies to investigate the ...

Journal: :Nagoya journal of medical science 1997
K Sakita M Fujino T Koshikawa N Ohmiya M Ohbayashi J Asai

Hemolymph nodes (HLs) are unique lymph nodes, in that their lymphatic sinuses contain numerous erythrocytes. In this study, we compared the internal structure and immunologic function of HLs with those of ordinary lymph nodes (OLs) and the spleen. Electron microscopy revealed erythrocytes passing through the walls of blood vessels in the intermediate sinus area (IMSA) of a HL between expanded e...

Journal: :CoRR 2016
Samrat Mukhopadhyay Prateek Vashishtha Mrityunjoy Chakraborty

Abstract—Though the method of least squares has been used for a long time in solving signal processing problems, in the recent field of sparse recovery from compressed measurements, this method has not been given much attention. In this paper we show that a method in the least squares family, known in the literature as Orthogonal Least Squares (OLS), adapted for compressed recovery problems, ha...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1996
R I Cohen R Marmur W T Norton M F Mehler J A Kessler

There is increasing evidence that the neurotrophins, particularly nerve growth factor (NGF) and neurotrophin-3 (NT-3), play a role in the regulation of glial development in the CNS. Recent studies have shown that the proliferation of optic nerve-derived O2A progenitors (OLPs) is potentiated by NT-3 in combination with platelet-derived growth factor, whereas NT-3 alone supports the survival of t...

Journal: :Bulletin of the Chemical Society of Japan 1968

Journal: :Planta medica 2011
Li-Qin Wang Ming-Mei Wu Jing-Ping Liu Yan Li Yan Hua Yuan-Yuan Wang Xing-Yao Li Ye-Gao Chen Ji-hua Wang

Five new 1,3-diarylpropan-1-ols, combretol A-E (1- 5), together with one known coumarin (6) and ten known triterpenes (7-16), were isolated from Combretum yunnanense. Their structures were determined by spectroscopic investigation, including ¹H and ¹³C NMR, NOESY, HSQC, HMBC, and HRESIMS analyses. This is the first report on the occurrence of 1,3-diarylpropan-1-ols and coumarin in the Combretum...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2004
Peter H Larsen V Wee Yong

Matrix metalloproteinases (MMPs) have important roles in many processes of the developing CNS requiring proteolytic activity such as the migration of neuronal precursors, axonal outgrowth, and vascularization. Another developmental event involving proteolysis is myelin formation, whereby the extensive processes elaborated from oligodendrocytes (OLs) enwrap axons. Here we find MMP-12 transcripts...

2011
THOMAS MIKOSCH G. DE VRIES

Suppose the tails of the noise distribution in a regression exhibit power law behavior. Then the distribution of the OLS regression estimator inherits this tail behavior. This is relevant for regressions involving …nancial data. We derive explicit …nite sample expressions for the tail probabilities of the distribution of the OLS estimator. These are useful for inference. Simulations for medium ...

Journal: :Journal of Monetary Economics 2021

We argue for Ordinary Least Squares (OLS) estimation of Taylor rules despite an endogeneity bias. To that end, we show analytically in the three-equation New Keynesian model OLS bias is proportional to fraction variance regressors due monetary shocks. Using simulations, this relationship also holds a quantitative U.S. economy. Since shocks explain only small typical rule regressors, tends be sm...

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