Results 121 to 130 of about 27,083 (265)

X‐ray fluorescence microscopy exposure estimates using a single excitation energy

Journal of Synchrotron Radiation, EarlyView.
We present calculations on the number of illuminating photons per pixel required for elemental detection using X‐ray fluorescence, even with far‐from‐threshold excitation.Scanning fluorescence X‐ray microscopy is widely used for quantitative mapping of elemental concentrations, including in studies of essential but low‐concentration metals in cells ...
Benjamin Roter, Andrew M. Crawford, Thomas V. O'Halloran, Chris Jacobsen   +3 more
wiley   +1 more source

Aggregating Spatial and Photometric Context for Photometric Stereo

Photometric stereo, a computer vision technique for estimating the 3D shape of objects through images captured under varying illumination conditions, has been a topic of research for nearly four decades. In its general formulation, photometric stereo is an ill-posed problem and requires robust prior knowledge of material reflectance properties, light ...
openaire   +1 more source

Evolution of hierarchical phase‐contrast tomography on the European Synchrotron beamlines BM05 and BM18: a whole adult human brain imaging case study

Journal of Synchrotron Radiation, EarlyView.
The evolution of hierarchical phase‐contrast tomography (HiP‐CT) from its origins at the BM05 beamline to its transition to BM18 (ESRF‐EBS) is shown. The novel hardware and scanning approach developments resulted in significantly improved data quality, resolution, sensitivity and speed.
Hector Dejea, Joseph Brunet, Theresa Urban, Camille Berruyer, Alessandro Mirone, Christoph Jarnias, Alexandre Bellier, Claire Walsh, Peter D. Lee, Paul Tafforeau   +9 more
wiley   +1 more source

A Large and Precise All-Sky Photometric Standard Star Dataset Across More Than 200 Passbands. [PDF]

Sci Data
Xiao K, Huang Y, Yuan H, Huang B, Fan D, Beers TC, Li Z, Han H, Zhang Q, Wang T, Ma M, Wang Y, Xu S, Yang L, Liu J.   +14 more
europepmc   +1 more source

Deep blueprint: A literature review and guide to automated image classification for ecologists

Journal of Animal Ecology, EarlyView.
A practical, literature‐grounded review that gives ecologists a clear, modular workflow for deep learning image classification. With code, GUIs and a novel deep sea case study (automated deep sea biotope classification) it lowers technical barriers and provides a usable blueprint for accelerating, standardising, and scaling ecological image analysis ...
Chloe A. Game, Nils Piechaud, Kerry L. Howell   +2 more
wiley   +1 more source

Latent Code Predictor for Accelerating Disparity Estimation in Stereo-Endoscopic Surface Reconstruction. [PDF]

Sensors (Basel)
Dang J, Yang B, Yao G, Liu C, Zheng W.
europepmc   +1 more source

Ozone‐driven degradation of sex pheromone in Plutella xylostella: Implications for reproductive communication and mating success

Insect Science, EarlyView.
In this study, we examined whether realistic ozone concentrations can interfere with sexual communication in the insect pest Plutella xylostella, the diamondback moth. Ozone exposure caused a degradation of pheromone components, leading to significant changes in blend composition and component ratios.
Francesco Sorrentino, Delia M. Pinto‐Zevallos, Oksana Skaldina, James D. Blande   +3 more
wiley   +1 more source

A large-scale benchmark dataset for Urdu script optical character recognition with systematic augmentation. [PDF]

Data Brief
Yasir F, Kazmi M, Qazi SA.
europepmc   +1 more source

New biosensors and transgenic mice for multiplex cGMP imaging

British Journal of Pharmacology, EarlyView.
Background and Purpose Cyclic guanosine monophosphate (cGMP) is a versatile second messenger that is important for human (patho‐)physiology and pharmacotherapy. Live‐cell imaging of cGMP with biosensors allows to elucidate its spatiotemporal dynamics in real time under close‐to‐native conditions. However, to monitor two separate cGMP pools or cGMP/cAMP
Markus Wolters, Martin Thunemann, Barbara Birk, Susanne Feil, Viacheslav O. Nikolaev, Moritz Lehners, Robert Feil   +6 more
wiley   +1 more source

Drug-induced plasma discolouration mimicking icterus risks inappropriate withholding of critical lactate. [PDF]

Pract Lab Med
Kerr B, Murphy A, Houstoun C, Tan J, Mykytiv V, Costelloe SJ.   +5 more
europepmc   +1 more source