Results 21 to 30 of about 15,379,617 (147)

Construction of polygarmonic models with nonmultiple frequencies on the principles of genetic algorithms for description of vibrational processes [PDF]

, 2018
Усовершенствован метод построения гармоничных моделей с некратными частотами сложных процессов на базе генетических алгоритмов, который по сравнению с индуктивным методом самоорганизации моделей требует меньших затрат машинного времени на их реализацию ...
Сабат, Н.В., Горбийчук, М.И., Шуфнарович, М.А.   +2 more
core   +2 more sources

Dissecting Characteristics Nonparametrically

The Review of financial studies, 2020
We propose a nonparametric method to study which characteristics provide incremental information for the cross-section of expected returns. We use the adaptive group LASSO to select characteristics and to estimate how selected characteristics affect ...
Joachim Freyberger, Andreas Neuhierl, Michael Weber   +2 more
semanticscholar   +1 more source

A pilot study of magnetic resonance fingerprinting in Parkinson's disease

NMR in Biomedicine, Volume 33, Issue 11, November 2020., 2020
Magnetic resonance fingerprinting (MRF)‐based T1 and T2 mapping can help identify Parkinson's disease patients based on regional relaxation time, but differs from standard mapping results. Disease severity could not be associated with relaxation times. T1 relaxation times differed most in cortical grey matter rather than in the basal ganglia. Parkinson'
Vera Catharina Keil, Stilyana Peteva Bakoeva, Alina Jurcoane, Mariya Doneva, Thomas Amthor, Peter Koken, Burkhard Mädler, Guido Lüchters, Wolfgang Block, Ullrich Wüllner, Elke Hattingen   +10 more
wiley   +1 more source

Одна характеристическая задача для дифференциального гиперболического уравнения третьего порядка общего вида с некратными характеристиками@@@One characteristic problem for the general hyperbolic differential equation of the third order with nonmultiple characteristics

, 2012
In the paper we consider the well-posed characteristic problem for the general hyperbolic differential equation of the third order with nonmultiple characteristics. The solution of this problem is constructed in an explicit form. The illustrative example
J. Yakovleva, Юлия Олеговна Яковлева   +1 more
semanticscholar   +1 more source

ЗАДАЧА КОШИ ДЛЯ ГИПЕРБОЛИЧЕСКОГО УРАВНЕНИЯ ТРЕТЬЕГО ПОРЯДКА

, 2018
In the article the Cauchy problem for the third order hyperbolic differential equation with nonmultiple characteristics is considered on the plane of two independent variables.
Юлия Олеговна Яковлева
semanticscholar   +1 more source

Consensus on the key characteristics of endocrine-disrupting chemicals as a basis for hazard identification

Nature Reviews Endocrinology, 2019
Endocrine-disrupting chemicals (EDCs) are exogenous chemicals that interfere with hormone action, thereby increasing the risk of adverse health outcomes, including cancer, reproductive impairment, cognitive deficits and obesity.
M. La Merrill, Laura N. Vandenberg, Martyn T. Smith, W. Goodson, P. Browne, Heather B. Patisaul, K. Guyton, A. Kortenkamp, V. Cogliano, Tracey J. Woodruff, Linda Rieswijk, Hideko Sone, K. Korach, A. Gore, Lauren Zeise, R. Zoeller   +15 more
semanticscholar   +1 more source

An Analysis of a Heuristic Procedure to Evaluate Tail (in)dependence

Journal of Probability and Statistics, Volume 2014, Issue 1, 2014., 2014
Measuring tail dependence is an important issue in many applied sciences in order to quantify the risk of simultaneous extreme events. A usual measure is given by the tail dependence coefficient. The characteristics of events behave quite differently as these become more extreme, whereas we are in the class of asymptotic dependence or in the class of ...
Marta Ferreira, Sérgio Silva, Ricardas Zitikis   +2 more
wiley   +1 more source

Highly Accurate Timestamping for Ethernet‐Based Clock Synchronization

Journal of Computer Networks and Communications, Volume 2012, Issue 1, 2012., 2012
It is not only for test and measurement of great importance to synchronize clocks of networked devices to timely coordinate data acquisition. In this context the seek for high accuracy in Ethernet‐based clock synchronization has been significantly supported by enhancements to the Network Time Protocol (NTP) and the introduction of the Precision Time ...
Patrick Loschmidt, Reinhard Exel, Georg Gaderer, Liansheng Tan   +3 more
wiley   +1 more source

Coronary Artery Plaque Characteristics Associated With Adverse Outcomes in the SCOT-HEART Study

Journal of the American College of Cardiology, 2019
Background Unlike most noninvasive imaging modalities, coronary computed tomography angiography can characterize subtypes of atherosclerotic plaque. Objectives The purpose of this study was to investigate the prognostic implications of adverse coronary ...
M. Williams, A. Moss, M. Dweck, P. Adamson, S. Alam, A. Hunter, A. Shah, T. Pawade, J. Weir-McCall, G. Roditi, E. V. van Beek, D. Newby, E. Nicol   +12 more
semanticscholar   +1 more source

Eye Diseases and Impaired Vision as Possible Risk Factors for Recurrent Falls in the Aged: A Systematic Review

Current Gerontology and Geriatrics Research, Volume 2012, Issue 1, 2012., 2012
Background. Recurrent falls are common among the aged. Vision is needed in maintaining balance, and impaired vision may be an intrinsic risk factor of recurrent falls. The aim was to perform a systematic review about the relationships between eye diseases or impaired vision and the risk of recurrent falls in the aged. Material and Methods.
Liisa Salonen, Sirkka-Liisa Kivelä, Arnold B. Mitnitski   +2 more
wiley   +1 more source