Stretching the Horizon of a Higher Dimensional Small Black Hole [PDF]
There is a general scaling argument that shows that the entropy of a small black hole, representing a half-BPS excitation of an elementary heterotic string in any dimension, agrees with the statistical entropy up to an overall numerical factor.
Sen, Ashoke
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Extraction of the underlying structure of systematic risk from non-Gaussian multivariate financial time series using independent component analysis: Evidence from the Mexican stock exchange [PDF]
Regarding the problems related to multivariate non-Gaussianity of financial time series, i.e., unreliable results in extraction of underlying risk factors -via Principal Component Analysis or Factor Analysis-, we use Independent Component Analysis (ICA ...
Ladrón de Guevara Cortés, Rogelio +2 more
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The purpose. To study the factor structure and to establish the associative interaction of pathogenetic links of acute diseases development of the bronchopulmonary system in infants.Materials and methods.
G. O. Lezhenko +3 more
doaj +1 more source
Statistical analysis of factor models of high dimension
This paper considers the maximum likelihood estimation of factor models of high dimension, where the number of variables (N) is comparable with or even greater than the number of observations (T). An inferential theory is developed. We establish not only
Bai, Jushan, Li, Kunpeng
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Understanding and Improving the Wang-Landau Algorithm [PDF]
We present a mathematical analysis of the Wang-Landau algorithm, prove its convergence, identify sources of errors and strategies for optimization. In particular, we found the histogram increases uniformly with small fluctuation after a stage of initial ...
B. J. Schulz +2 more
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The prognostication of development of respiratory tract bacterial diseases for children of early age
The purpose of this study was definition of influence of the modified factors in development of acute pneumonia in children of early age and development of the method of prognostication of disease development. Materials and methods.
H. O. Lezhenko +2 more
doaj +1 more source
Underlying construct of empathy, optimism, and burnout in medical students. [PDF]
OBJECTIVE: This study was designed to explore the underlying construct of measures of empathy, optimism, and burnout in medical students. METHODS: Three instruments for measuring empathy (Jefferson Scale of Empathy, JSE); Optimism (the Life Orientation ...
Cohen, Mitchell +4 more
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Patterns of anxiety symptoms in toddlers and preschool-age children: Evidence of early differentiation [PDF]
The degree to which young children’s anxiety symptoms differentiate according to diagnostic groupings is under-studied, especially in children below the age of 4 years.
Briggs-Gowan, Margaret J. +3 more
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Statistical analysis for the Q‐factor of twin kHz QPOs [PDF]
AbstractUsing the recently published data of twin kHz quasi‐period oscillations (QPOs) in neutron stars of low‐mass X‐ray binaries (LMXBs), we study the different profiles between bright Z sources and less luminous Atoll sources. The quality factors of upper kHz QPOs show a narrow distribution both for Z sources and Atoll sources, which concentrate at ...
Wang, Jing +4 more
openaire +2 more sources
External Validation and Comparison of Current Scoring Systems in Encrusted Ureteral Stent Management: a Multicenter Study [PDF]
Purpose: To compare the external validation of four existing scoring systems for encrusted ureteral stents (EUS) and their relationship with stent indwelling time, stone-free rates, multiple surgery sessions, multimodal procedures, and prolonged ...
Mert Hamza Özbilen +11 more
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