Results 41 to 50 of about 4,689,601 (244)

Bounds for the Breakdown Point of the Simplicial Median

open access: yesJournal of Multivariate Analysis, 1995
\textit{R. Y. Liu} [Ann. Stat. 18, No. 1, 405-414 (1990; Zbl 0701.62063)] introduced the simplicial median as a generalization of the median for a multivariate probability distribution. The simplicial median is affine equivariant and so is the sample simplicial median if it is unique or if it is conveniently chosen when it is not unique.
openaire   +2 more sources

Assessing robustness of classification using an angular breakdown point [PDF]

open access: yesThe Annals of Statistics, 2018
Robustness is a desirable property for many statistical techniques. As an important measure of robustness, breakdown point has been widely used for regression problems and many other settings. Despite the existing development, we observe that the standard breakdown point criterion is not directly applicable for many classification problems.
Zhao, Junlong, Yu, Guan, Liu, Yufeng
openaire   +4 more sources

Safety of Daprodustat for the Treatment of Chronic Kidney Disease Anemia: Final Analysis of a Multicenter Postmarketing Surveillance Study in Japan

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This final analysis of a multicenter, prospective postmarketing surveillance study evaluated the safety of daprodustat in patients with chronic kidney disease anemia in routine clinical practice in Japan. Methods Patients who initiated daprodustat between September 2020 and July 2022 were registered.
Tadao Akizawa   +7 more
wiley   +1 more source

Robust estimation in simultaneous equations models [PDF]

open access: yes, 1994
In this paper we review existing work on robust estimation for simultaneous equations models. Then we discuss three strategies for obtaining estimators with a high breakdown point, a controllable efficiency, and a reasonable computational cost: (a ...
Yohai, Víctor J., Maronna, Ricardo A.
core   +1 more source

Where does N(ε)-trimethyllysine for the carnitine biosynthesis in mammals come from? [PDF]

open access: yesPLoS ONE, 2014
N(ε)-trimethyllysine (TML) is a non-protein amino acid which takes part in the biosynthesis of carnitine. In mammals, the breakdown of endogenous proteins containing TML residues is recognized as starting point for the carnitine biosynthesis.
Luigi Servillo   +4 more
doaj   +1 more source

Grüneisen Ratio at the Kondo-Breakdown Quantum Critical Point

open access: yesPhysical Review Letters, 2008
We show that the scenario of multi-scale Kondo breakdown quantum critical point (QCP) gives rise to a divergent Grüneisen ratio with an anomalous exponent 0.7. In particular, we fit the experimental data of $YbRh_{2}(Si_{0.95}Ge_{0.05})_{2}$ for specific heat, thermal expansion, and Grüneisen ratio based on our simple analytic expressions. A reasonable
Kim, K. -S., Benlagra, A., Pépin, C.
openaire   +3 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Comparative Study of Breakdown Voltage of Mineral, Synthetic and Natural Oils and Based Mineral Oil Mixtures under AC and DC Voltages

open access: yesEnergies, 2017
This paper deals with a comparative study of AC and DC breakdown voltages of based mineral oil mixtures with natural and synthetic esters mainly used in high voltage power transformers.
Abderrahmane Beroual   +3 more
doaj   +1 more source

Low-Area Four-Channel Controlled Dielectric Breakdown System Design for Point-of-Care Applications

open access: yesSensors, 2022
In this study, we propose a low-area multi-channel controlled dielectric breakdown (CDB) system that simultaneously produces several nanopore sensors. Conventionally, solid-state nanopores are prepared by etching or drilling openings in a silicon nitride
Jonggi Hong   +3 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

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