Results 61 to 70 of about 3,810,680 (297)

Two Faces of NOTCH1 in Childhood Lymphoblastic T‐Cell Neoplasia: Prognostic Divergence of Mutational and Structural Aberrations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT In pediatric patients, T‐cell lymphoblastic lymphoma (T‐LBL) survival exceeds 80%. Relapse remains associated with limited curative options. Frontline treatment is largely extrapolated from T‐cell acute lymphoblastic leukemia (T‐ALL) treatment, reflecting the ongoing debate, whether both entities represent distinct diseases or variants within ...
Marie C. Heider   +4 more
wiley   +1 more source

Non-Appearance-Based Discrimination of UAVs and Birds in Optical Remote Sensing: Using Kinematic and Time–Frequency Features

open access: yesDrones
Unmanned aerial vehicles (UAVs) and birds are typical low-altitude small targets in optical remote sensing, often occupying only a few pixels and exhibiting highly similar appearances, which limits the effectiveness of appearance-based discrimination at ...
Yifei Yao   +5 more
doaj   +1 more source

No-Reference Quality Assessment of Extended Target Adaptive Optics Images Using Deep Neural Network

open access: yesSensors, 2023
This paper proposes a supervised deep neural network model for accomplishing highly efficient image quality assessment (IQA) for adaptive optics (AO) images.
Guoqing Gao   +7 more
doaj   +1 more source

Adaptivity and adaptation

open access: yesProceedings of the International Conference on Networked Learning, 2008
Within the iClass (Integrated Project n° 507922) and Elektra (Strep n°027986) European projects, the authors were requested to harness their pedagogical knowledge to the production of educational adaptive systems. The paper pinpoints and documents difficulties and limitations of this work as well as the possible fertility of such kind of ...
Dominique Verpoorten   +3 more
openaire   +1 more source

Bayesian Inference on QGARCH Model Using the Adaptive Construction Scheme

open access: yes, 2009
We study the performance of the adaptive construction scheme for a Bayesian inference on the Quadratic GARCH model which introduces the asymmetry in time series dynamics.
Takaishi, Tetsuya
core   +1 more source

Convergence of simple adaptive Galerkin schemes based on h − h/2 error estimators [PDF]

open access: yes, 2008
We discuss several adaptive mesh-refinement strategies based on (h − h/2)-error estimation. This class of adaptivemethods is particularly popular in practise since it is problem independent and requires virtually no implementational overhead.
C. Carstensen   +24 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Comparison of Wavefront Sensing Methods for Solar Ground-Layer Adaptive Optics: Multi-Direction Averaging and Wide-Field Correlation

open access: yesPhotonics
Solar ground-layer adaptive optics (GLAO) is widely recognized as a key technology for achieving high-resolution, wide-field imaging in ground-based solar telescopes. However, the accuracy differences among various wavefront sensing methods in solar GLAO
Yuhe Liu   +8 more
doaj   +1 more source

Next-generation vision testing: the quick CSF

open access: yesCurrent Directions in Biomedical Engineering, 2015
The Contrast Sensitivity Function relates the spatial frequency and contrast of a spatial pattern to its visibility and thus provides a fundamental description of visual function.
Dorr Michael   +6 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

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