Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
3,189
h, The U UK
"... Although ectopic expression of 25-hydroxyvitamin D3-1-hydroxylase (1-OHase) has been recognized for many years, the precise function of this enzyme outside the kidney remains open to debate. Three specific aspects of extra-renal 1-OHase have attracted most attention: (i) disease; (iii found in som c ..."
Abstract
- Add to MetaCart
Although ectopic expression of 25-hydroxyvitamin D3-1-hydroxylase (1-OHase) has been recognized for many years, the precise function of this enzyme outside the kidney remains open to debate. Three specific aspects of extra-renal 1-OHase have attracted most attention: (i) disease; (iii found in som circulation. tissues inclu 1,25(OH)2D (dendritic ce responses to in many tiss © 2006 Pub
Sparsity and Incoherence in Compressive Sampling
, 2006
"... We consider the problem of reconstructing a sparse signal x 0 ∈ R n from a limited number of linear measurements. Given m randomly selected samples of Ux 0, where U is an orthonormal matrix, we show that ℓ1 minimization recovers x 0 exactly when the number of measurements exceeds m ≥ Const · µ 2 (U) ..."
Abstract
-
Cited by 238 (13 self)
- Add to MetaCart
) · S · log n, where S is the number of nonzero components in x 0, and µ is the largest entry in U properly normalized: µ(U) = √ n · maxk,j |Uk,j|. The smaller µ, the fewer samples needed. The result holds for “most ” sparse signals x 0 supported on a fixed (but arbitrary) set T. Given T, if the sign of x 0
Competition and innovation: an inverted U relationship
, 2002
"... This paper investigates the relationship between product market competition (PMC) and innovation. A growth model is developed in which competition may increase the incremental profit from innovating; on the other hand, competition may also reduce innovation incentives for laggards. There are four ke ..."
Abstract
-
Cited by 185 (14 self)
- Add to MetaCart
, the steeper the inverted-U relationship. Fourth, firms may innovate more if subject to higher debt-pressure, especially at lower levels of PMC. We confront these predictions with data on UK firms’ patenting activity at the US patenting office. They are found to accord well with observed behavior.
Factors influencing voluntary annual report disclosures by U.S., U.K. and continental European multinational corporations
- Journal of International Business Studies
, 1995
"... Abstract. This study examines factors influencing the voluntary dis-closures of three types of information (strategic, nonfinancial, financial) contained in the annual reports of MNCs from the U.S., U.K. and Continental Europe. While company size, country/region, listing status, and, to a lesser ext ..."
Abstract
-
Cited by 116 (1 self)
- Add to MetaCart
Abstract. This study examines factors influencing the voluntary dis-closures of three types of information (strategic, nonfinancial, financial) contained in the annual reports of MNCs from the U.S., U.K. and Continental Europe. While company size, country/region, listing status, and, to a lesser
Adverse Selection in Insurance Markets: Policyholder Evidence from the U.K. Annuity Market.” NBER Working Paper 8045,
, 2000
"... ABSTRACT In this paper, we investigate the importance of adverse selection in insurance markets. We use a unique data set, consisting of all annuity policies sold by a large U.K. insurance company since the early 1980s, to analyze mortality differences among individuals who purchased different type ..."
Abstract
-
Cited by 126 (12 self)
- Add to MetaCart
ABSTRACT In this paper, we investigate the importance of adverse selection in insurance markets. We use a unique data set, consisting of all annuity policies sold by a large U.K. insurance company since the early 1980s, to analyze mortality differences among individuals who purchased different
U.K. and
, 2000
"... Infinite enlargements of finite pseudo-unitary symmetries are explicitly provided in this letter. The particular case of u(2, 2) ≃ so(4, 2)⊕u(1) constitutes a (Virasoro-like) infinitedimensional generalization of the 3 + 1-dimensional conformal symmetry, in addition to matter fields with all confor ..."
Abstract
- Add to MetaCart
Infinite enlargements of finite pseudo-unitary symmetries are explicitly provided in this letter. The particular case of u(2, 2) ≃ so(4, 2)⊕u(1) constitutes a (Virasoro-like) infinitedimensional generalization of the 3 + 1-dimensional conformal symmetry, in addition to matter fields with all
U.K. and
, 2000
"... Infinite enlargements of finite pseudo-unitary symmetries are explicitly provided in this letter. The particular case of u(2, 2) ≃ so(4, 2)⊕u(1) constitutes a (Virasoro-like) infinitedimensional generalization of the 3 + 1-dimensional conformal symmetry, in addition to matter fields with all confor ..."
Abstract
- Add to MetaCart
Infinite enlargements of finite pseudo-unitary symmetries are explicitly provided in this letter. The particular case of u(2, 2) ≃ so(4, 2)⊕u(1) constitutes a (Virasoro-like) infinitedimensional generalization of the 3 + 1-dimensional conformal symmetry, in addition to matter fields with all
Results 1 - 10
of
3,189
