Results 81 to 90 of about 6,492,121 (341)

Essentially spectrally bounded linear maps [PDF]

open access: yesProceedings of the American Mathematical Society, 2009
Let L(H) be the algebra of all bounded linear operators on an infinite dimensional complex Hilbert space H. We characterize essentially spectrally bounded linear maps from L(H) onto L(H) itself. As a consequence, we characterize linear maps from L(H) onto L(H) itself that compress different essential spectral sets such as the the essential spectrum ...
M. Bendaoud   +2 more
openaire   +2 more sources

Insights into PI3K/AKT signaling in B cell development and chronic lymphocytic leukemia

open access: yesFEBS Letters, EarlyView.
This Review explores how the phosphoinositide 3‐kinase and protein kinase B pathway shapes B cell development and drives chronic lymphocytic leukemia, a common blood cancer. It examines how signaling levels affect disease progression, addresses treatment challenges, and introduces novel experimental strategies to improve therapies and patient outcomes.
Maike Buchner
wiley   +1 more source

Double Identification of the Optimal Hot Deformation Parameter Windows for AlCu4SiMg Alloy [PDF]

open access: yesMaterials Research, 2019
In order to achieve hot processing products with expected microstructures, the construction of corresponding relationships between micro-evolution mechanisms and hot processing parameters is essential.
Ying Tong   +5 more
doaj   +1 more source

A comparative analysis of web-based GIS applications using usability metrics [PDF]

open access: yes, 2015
With the rapid expansion of the internet, Web-based Geographic Information System (WGIS) applications have gained popularity, despite the interface of the WGIS application being difficult to learn and understand because special functions are needed to ...
Abdulmonim, Dhafer Abdulameer
core  

Self-Organized Criticality Driven by Deterministic Rules

open access: yes, 1997
We have investigated the essential ingredients allowing a system to show Self Organized Criticality (SOC) in its collective behavior. Using the Bak-Sneppen model of biological evolution as our paradigm, we show that the random microscopic rules of update
A. Corral   +34 more
core   +1 more source

Compactification for essentially finite-type maps

open access: yesAdvances in Mathematics, 2009
We show that any separated essentially finite-type map $f$ of noetherian schemes globally factors as $f = hi$ where $i$ is an injective localization map and $h$ a separated finite-type map. In particular, via Nagata's compactification theorem, $h$ can be chosen to be proper. We apply these results to Grothendieck duality.
openaire   +3 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

A Homotopy Theory for Maps Having Strongly Convexly Totally Bounded Ranges in Topological Vector Spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
This paper presents Leray–Schauder alternatives and a topological transversality (homotopy) theorem for compact upper semicontinuos maps having (strongly) convexly totally bounded ranges.
O’Regan Donal
doaj   +1 more source

Significance of Arbuscular Mycorrhizal Fungi in Mitigating Abiotic Environmental Stress in Medicinal and Aromatic Plants: A Review

open access: yesFoods, 2022
Medicinal and aromatic plants (MAPs) have been used worldwide for thousands of years and play a critical role in traditional medicines, cosmetics, and food industries. In recent years, the cultivation of MAPs has become of great interest worldwide due to
Abir Israel   +3 more
doaj   +1 more source

Stability of radiomics features in apparent diffusion coefficient maps from a multi-centre test-retest trial

open access: yesScientific Reports, 2019
Quantitative radiomics features, extracted from medical images, characterize tumour-phenotypes and have been shown to provide prognostic value in predicting clinical outcomes. Stability of radiomics features extracted from apparent diffusion coefficient (
J. Peerlings   +10 more
semanticscholar   +1 more source

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