Results 31 to 40 of about 1,450,713 (273)

COMPUTATION OF POLYNOMIALS, THE LEAST DEVIATING FROM ZERO IN L1 METRICS BY SOLVING EXTREMAL PROBLEMS

, 2022
Abstract In this paper, we consider polynomials that deviate least from zero in the L1 metric. Then we explicitly calculate Chebyshev polynomials of the second kind by solving extremal problems.
Suleykin, A., Mammahajiyev, R.
openaire   +1 more source

Best Subset Selection via a Modern Optimization Lens [PDF]

, 2015
In the last twenty-five years (1990-2014), algorithmic advances in integer optimization combined with hardware improvements have resulted in an astonishing 200 billion factor speedup in solving Mixed Integer Optimization (MIO) problems.
Bertsimas, Dimitris, King, Angela, Mazumder, Rahul   +2 more
core   +2 more sources

How does social capital affect individual health among the elderly in rural China?-Mediating effect analysis of physical exercise and positive attitude.

PLoS ONE, 2020
BackgroundThe elderly in rural areas comprise over half of the older population in China, and their health problems are a matter of great concern for the Chinese government and society.
Hang Liang, Zhang Yue, Erpeng Liu, Nan Xiang   +3 more
doaj   +1 more source

Improvement of Multi-GNSS Precision and Success Rate Using Realistic Stochastic Model of Observations

Remote Sensing, 2021
With the advancement of multi-constellation and multi-frequency global navigation satellite systems (GNSSs), more observations are available for high precision positioning applications.
Farinaz Mirmohammadian, Jamal Asgari, Sandra Verhagen, Alireza Amiri-Simkooei   +3 more
doaj   +1 more source

Trigonometric polynomials of least deviation from zero in measure and related problems

Journal of Approximation Theory, 2010
Let \(\mathcal{F}_{n}\) be the set of trigonometric polynomials \[ f_{n}(t)=\frac{a_{0}}{2}+\sum_{k=1}^{n}(a_{k}\cos kt +b_{k}\sin k t) \] of order \(n\geq 0\) with real coefficients. On the set \(\mathcal{F}_{n}\) consider the functional \[ \mu(f_{n})=\text{mes}\{t\in \mathbb{T}\,:\,|f_{n}(t)|\geq 1\}, \] where \(\text{mes}\) stands for the Lebesgue ...
Arestov, Vitalii V., Mendelev, Alexei S.
openaire   +2 more sources

Adjunctive Therapeutic Plasma Exchange in Refractory Adult‐Onset Still's Disease Complicated by Secondary Macrophage Activation Syndrome: A Single‐Center Experience

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Adult‐onset Still's disease (AOSD) complicated by macrophage activation syndrome (MAS) carries substantial mortality. The role of therapeutic plasma exchange (TPE) remains uncertain. Methods We retrospectively analyzed patients with AOSD‐MAS treated with TPE at a single‐center.
Masataka Ueda, Tomohiro Saito, Masahide Mizobuchi, Tomoki Shimomura, Saki Kawamori, Mitsuru Kawanishi, Natsuko Hattori, Jo Sugiyama, Satoshi Tsubata, Hanami Horiguchi, Kazuki Abe, Nao Iida, Yuki Kajio, Nao Oguro, Ryo Yanai, Hirokazu Honda   +15 more
wiley   +1 more source

Examination of a climate stabilization pathway via zero-emissions using Earth system models

Environmental Research Letters, 2015
Long-term climate experiments up to the year 2300 have been conducted using two full-scale complex Earth system models (ESMs), CESM1(BGC) and MIROC-ESM, for a CO _2 emissions reduction pathway, termed Z650, where annual CO _2 emissions peak at 11 PgC in ...
Daisuke Nohara, J Tsutsui, S Watanabe, K Tachiiri, T Hajima, H Okajima, T Matsuno   +6 more
doaj   +1 more source

An Efficient Reactive Power Control Method for Power Network Systems with Solar Photovoltaic Generators Using Sparse Optimization

Energies, 2017
With the incremental introduction of solar photovoltaic (PV) generators into existing power systems, and their fast-growing share in the gross electricity generation, system voltage stability has become a critical issue.
Yu Li, Masato Ishikawa
doaj   +1 more source

Achieving clinical outcomes with benralizumab in severe eosinophilic asthma patients in a real-world setting: ORBE II study

Respiratory Research, 2023
Background The ORBE II study aimed to describe the characteristics and clinical outcomes of adult patients with severe eosinophilic asthma (SEA) treated with benralizumab in a real-world setting in Spain.
Alicia Padilla-Galo, Isabel Moya Carmona, Pilar Ausín, Luis Carazo Fernández, Ismael García-Moguel, José Luis Velasco-Garrido, Rubén Andújar-Espinosa, Francisco Casas-Maldonado, Eva Martínez-Moragón, Carlos Martínez Rivera, Elisabet Vera Solsona, Fernando Sánchez-Toril López, Andrea Trisán Alonso, Marina Blanco Aparicio, Marcela Valverde-Monge, Borja Valencia Azcona, Marta Palop Cervera, Javier Nuevo, Jesús Sánchez Tena, Gustavo Resler, Elisa Luzón, Alberto Levy Naon   +21 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source