Results 21 to 30 of about 558,032 (264)

Evaluating carbon-electrode dielectrophoresis under the ASSURED criteria

open access: yesFrontiers in Medical Technology, 2022
Extreme point-of-care refers to medical testing in unfavorable conditions characterized by a lack of primary resources or infrastructure. As witnessed in the recent past, considerable interest in developing devices and technologies exists for extreme ...
Rodrigo Martinez-Duarte   +3 more
doaj   +1 more source

Questions About Extreme Points

open access: yesIntegral Equations and Operator Theory, 2023
AbstractWe discuss the geometry of the unit ball—specifically, the structure of its extreme points (if any)—in subspaces of$$L^1$$L1and$$L^\infty $$L∞on the circle that are formed by functions with prescribed spectral gaps. A similar issue is considered for kernels of Toeplitz operators in$$H^\infty $$H∞.
openaire   +4 more sources

𝐶*-extreme points [PDF]

open access: yesTransactions of the American Mathematical Society, 1981
Let A \mathcal {A} be a C ∗ {C^ \ast } -algebra and let S \mathcal {S} be a subset of A \mathcal {A} . S \mathcal {S} is C ∗ {C^ \ast
Alan Hopenwasser   +2 more
openaire   +1 more source

Extreme purifying selection against point mutations in the human genome

open access: yesNature Communications, 2022
Previous work has investigated selection in the coding genome, but it is not as well characterized in the non-coding genome. By analyzing rare variants in 70k genome sequences from gnomAD, the authors detect very strong purifying selection ...
Noah Dukler   +4 more
doaj   +1 more source

Possible impact of urbanization on extreme precipitation–temperature relationship in East Asian megacities

open access: yesWeather and Climate Extremes, 2021
This study investigates the possible impact of urbanization on the summertime extreme precipitation–temperature (P–T) relationship in East Asia. The local climate in three megacity regions—Guangdong in China, Seoul/Gyeonggi in Korea, and Tokyo in Japan ...
Seok-Geun Oh, Seok-Woo Son, Seung-Ki Min
doaj   +1 more source

On C$^*$-extreme points [PDF]

open access: yesProceedings of the American Mathematical Society, 2000
Summary: Each weak\(^*\) compact \(C^*\)-convex set in a hyperfinite factor (in particular in \(B({\mathcal H})\)) is the weak\(^*\) closure of the \(C^*\)-convex hull of its \(C^*\)-extreme points.
openaire   +2 more sources

Diameter-Aware Extreme Group Queries

open access: yesIEEE Access, 2018
In spatial databases, the objects have semantic attributes as well as geographic coordinates. Considering the two aspects, we propose the diameter-aware extreme group query (DiaEG query), which searches for good $k$ -item groups of objects. We mark the
Xi Guo   +3 more
doaj   +1 more source

On the structure of support point sets

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
Let X be a metrizable compact convex subset of a locally convex space. Using Choquet's Theorem, we determine the structure of the support point set of X when X has countably many extreme points. We also characterize the support points of certain families
E. Azoff, R. younis
doaj   +1 more source

Studying the Effect of Changes in Dew Point Temperature on Extreme Precipitation in the North West of Iran [PDF]

open access: yesNīvār, 2023
In the present research, using the daily precipitation data of 479 meteorological and rain gauge stations in the north west of Iran, the relationship between the changes in the dew point temperature and the precipitation in this region was investigated ...
Mahnaz Rostamian   +2 more
doaj   +1 more source

The Optimization of Bayesian Extreme Value: Empirical Evidence for the Agricultural Commodities in the US

open access: yesEconomies, 2021
Bayesian extreme value analysis was used to forecast the optimal point in agricultural commodity futures prices in the United States for cocoa, coffee, corn, soybeans and wheat. Data were collected daily between 2000 and 2020.
Jittima Singvejsakul   +2 more
doaj   +1 more source

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