Results 21 to 30 of about 1,587,064 (315)

Cayley-Hamilton theorem for left eigenvalues of 3 × 3 quaternionic matrices

open access: yesSpecial Matrices, 2014
We prove that any quaternionic matrix of order n ≤3 admits a characteristic function, whose roots are the left eigenvalues, that satisfes Cayley-Hamilton theorem.
Macías-Virgós E., Pereira-Sáez M.J.
doaj   +1 more source

Exact BER performance of asynchronous MC-DS-CDMA over Nakagami-m fading channels [PDF]

open access: yes, 2008
In this contribution an accurate average bit error rate (BER) formula is derived for Nakagami-faded MC-DSCDMA in the context of asynchronous transmissions and random spreading sequences.
Smida, Besma   +5 more
core   +1 more source

Device Free Detection in Impulse Radio Ultrawide Bandwidth Systems

open access: yesSensors, 2021
In this paper, an analytical framework is presented for device detection in an impulse radio (IR) ultra-wide bandwidth (UWB) system and its performance analysis is carried out.
Waqas Bin Abbas   +4 more
doaj   +1 more source

Characteristic function v. [PDF]

open access: yes, 2015
Characteristic function v.
Keita Honjo (780244)
core   +1 more source

Empirical Characteristic Function Estimation and Its Applications [PDF]

open access: yes, 2003
This paper reviews the method of model-fitting via the empirical characteristic function. The advantage of using this procedure is that one can avoid difficulties inherent in calculating or maximizing the likelihood function.
Jun Yu, YU, Jun
core   +2 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Molecular mechanism of culinary herb Artemisia argyi in promoting lifespan and stress tolerance

open access: yesnpj Science of Food
Artemisia argyi Lévl. et Vant. (A. argyi) leaf possesses various health promoting functions contributed by its main bioactive flavonoids. In this study, the anti-aging effect and mechanism of Artemisia argyi leaf extract (AALE) were identified using ...
Jinsong Wang   +7 more
doaj   +1 more source

Analytical Pricing Vulnerable Options with Stochastic Volatility in a Two-Factor Stochastic Interest Rate Model

open access: yesMathematics
This paper develops an analytical pricing formula for vulnerable options with stochastic volatility under a two-factor stochastic interest rate model.
Junkee Jeon, Geonwoo Kim
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Nonparametric density estimation using a multidimensional mixture model of Gaussian distributions

open access: yesLietuvos Matematikos Rinkinys, 2005
This paper algorithmically and empirically studies five major types of nonparametric multivariate density estimation techniques, where no assumption is made about data being drawn from any of known parametric families of distribution. There is developed
Tomas Ruzgas, Mindaugas Kavaliauskas
doaj   +1 more source

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