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Now showing items 129 - 144 of 143315

  • A note on Type S/M errors in hypothesis testing

    Lu, Jiannan   Qiu, Yixuan   Deng, Alex  

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  • INVESTMENT PERFORMANCE OF MACHINE LEARNING: ANALYSIS OF S&P 500 INDEX

    Chen, Chia-Cheng; Chen, Chun-Hung; Liu, Ting-Yin  

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  • Gabor analysis of the spaces M(p,q,w) (?d) AND S(p,q,r,w,ω) (?d)

    Ay?i Sandik?i   A. Turan Gürkanli  

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  • Zeta functions and subgroup growth in\\({\\varvec{P}}2{\\varvec{/}m}\\)

    Alajbegovi?, Hermina   Avdispahi?, Muharem  

    By means of zeta and normal zeta functions of space groups, we determine the number of subgroups, resp. normal subgroups, of the tenth crystallographic group for any given index. This enables us to draw conclusions on the subgroup growth and the degree of this group.
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  • The (m, q)-Isometric Weighted Shifts on l (p) Spaces

    Gu, Caixing  

    In this paper we characterize weighted shifts (both unilateral and bilateral) on l (p) spaces that are (m, q)-isometries. We explicitly construct the weights of those operators. Properties of those operators, such as norm, similarity and a Berger-Shaw-type result, are also discussed.
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  • Constraints on variations of m(p)/m(e) based on UVES observations of H-2

    Wendt, M.  

    This article summarizes the latest results on the proton-to-electron mass ratio derived from H-2 observations at high redshift in the light of possible variations of fundamental physical constants. The focus lies on UVES observations of the past years as enormous progress was achieved since the first positive results on / were published. With the better understanding of systematics, dedicated observation runs, and numerous approaches to improve wavelength calibration accuracy, all current findings are in reasonable good agreement with no variation and provide an upper limit of / < 1 x 10(-5) for the redshift range of 2 < z < 3. ((c) 2014 WILEY-VCH Verlag GmbH &amp; Co. KGaA, Weinheim)
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  • Minding Your P(STF)’s and (AHR)Q’s

    Hager, Mary Hastings  

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  • MATERIALS AND PROCESS FOR SPATIAL S/P RATIO DISTRIBUTION

    A light fixture is disclosed having a plurality of light sources belonging to at least two types emitting light of different S/P ratio. The light sources are placed in the light fixture so that the light fixture, when in use, emits a light bundle having varying S/P ratios within the bundle. In an embodiment the light bundle has a central area with low S/P ratio, and peripheral areas having higher S/P ratio. The S/P ratio in the peripheral areas can be as high as 5 or even higher.In an alternate embodiment the light bundle has a central area with relatively S/P ratio, and peripheral areas having lower S/P ratio. The S/P ratio in the peripheral areas can be as low as 2 or even lower. The light fixtures are particularly suitable for outdoor lighting, for example street lighting.
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  • Minding Your P(STF)’s and (AHR)Q’s

    Hager   Mary Hastings  

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  • Concentration of Trading in S&P 500 Stocks

    Shankar, S. Gowri; Miller, James M.; Balakrishnan, P.V (Sundar)  

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  • What Makes the S&P 500 Jump?

    Marcel Prokopczuk   Chardin Wese Simen  

    Using intraday transaction prices and a non-parametric test, we study jumps in the S&amp;P 500. We show that jumps are low probability, high impact events. We use a comprehensive set of newswires to explore the events that trigger jumps. We are able to relate around 80% of jumps to scheduled and, more importantly, unscheduled news. Interestingly, unscheduled events frequently trigger the largest jumps in the stock market, confirming the intuition that unexpected news truly "shocks" the market. We investigate why some announcements trigger jumps, while other similar news does not. We find limited evidence in support of a positive relationship between announcement surprises and disagreement on the one hand, and the likelihood of jumps on the other.
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  • WALDENSTR?M?S MACROGLOBULINEMIA MASQUERADING AS BIRDSHOT CHORIORETINOPATHY

    Kim, Jane S.   Jaworski, Laurence   Patel-Donnelly, Dipti   Nussenblatt, Robert B.   Sen, H. Nida  

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  • Is the S&P 500 Index Tradable?

    Xu, Peng  

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  • $s$-Inversion Sequences and $P$-Partitions of Type $B$

    Chen, William Y. C.   Guo, Alan J. X.   Guo, Peter L.   Huang, Harry H. Y.   Liu, Thomas Y. H.  

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  • P and S wave delays caused by thermal plumes

    Maguire, Ross   Ritsema, Jeroen   van Keken, Peter E.   Fichtner, Andreas   Goes, Saskia  

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  • Self-dual codes over the ring GR(p(m), g) and Jacobi forms

    Ankur  

    We take a Galois ring GR(p(m), g) and discuss about the self-dual codes and its properties over the ring. We will also describe the relationship between Clifford-Weil group and Jacobi forms by constructing the invariant polynomial ring with the complete weight enumerator.
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