Results 71 to 80 of about 26,707 (264)

X-rays from Magnetic B-type Stars [PDF]

, 2018
Recent surveys have found that ∼10% of massive stars host strong, mostly dipolar magnetic fields with strengths on the order of a kilogauss. The prominent idea describing the interaction between the stellar winds and the magnetic field is the ...
Fletcher, Corinne
core   +1 more source

Atlas-Based Rib-Bone Detection In Chest X-Rays [PDF]

, 2016
This paper investigates using rib-bone atlases for automatic detection of rib-bones in chest X-rays (CXRs). We built a system that takes patient X-ray and model atlases as input and automatically computes the posterior rib borders with high accuracy and ...
Candemir, Sema, Jaeger, Stefan, Antani, Sameer, Bagci, Ulas, Folio, Les R.   +4 more
core   +1 more source

The Evolution of X‐Ray Emission in Young Stars

The Astrophysical Journal Supplement Series, 2005
We study the relation between age and magnetic activity in late-type pre-main sequence (PMS) stars, for the first time using mass-stratified subsamples. The effort is based on the Chandra Orion Ultradeep Project (COUP) which provides very sensitive and homogenous X-ray data on a uniquely large sample of 481 optically well-characterized low-extinction ...
Preibisch, Thomas, Feigelson, Eric D.
openaire   +2 more sources

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

X-Shooting ULLYSES: Massive Stars at Low Metallicity X. Physical Parameters and Feedback of Massive Stars in the LMC N11 B Star-Forming Region [PDF]

Massive stars drive the ionization and mechanical feedback within young star-forming regions. The Large Magellanic Cloud (LMC) is an ideal galaxy for studying individual massive stars and quantifying their feedback contribution to the environment.
A. A. C. Sander, Bernini-Peron, M., Gormaz-Matamala, A.C., Kehrig, C., L. M. Oskinova, N. Morrell, D. Pauli, Todt, H., Vink, J.S., Gormaz-Matamala, A. C., O. G. Telford, A. Wofford, Shenar, T., A. Mehner, Crowther, P.A., J. S. Vink, T. Shenar, V. Ramachandran, W.-R. Hamann, Sander, A. A.C., S. R. Berlanas, van Loon, J. Th, McLeod, A. F., Telford, O. G., S. Reyero Serantes, Hamann, W. R., Mahy, L., Crowther, P. A., Kuiper, R., Vink, J. S., F. Tramper, Sander, A.C., Telford, O.G., Pauli, D., P. A. Crowther, Reyero Serantes, S., ud-Doula, A., Berlanas, S. R., H. Todt, Ramachandran, V., Leitherer, C., Tramper, F., Wofford, A., A. F. McLeod, V. M. A. Gómez-González, C. Leitherer, Gómez-González, V.M.A., Mehner, A., Oskinova, L. M., J. Th. van Loon, R. Kuiper, Gómez-González, V. M.A., Th. van Loon, J., Berlanas, S.R., Oskinova, L.M., A. ud-Doula, A. C. Gormaz-Matamala, C. Kehrig, McLeod, A.F., M. Bernini-Peron, L. Mahy, Morrell, N.   +61 more
core   +2 more sources

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

FEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong, Yuhei Hosokawa, Lars Oliver Essen, Manuel Maestre‐Reyna   +3 more
wiley   +1 more source

Mass-Loss And Magnetospheres: X-Rays From Hot Stars And Young Stellar Objects [PDF]

, 2002
High-resolution X-ray spectra of high-mass stars and low-mass T-Tauri stars obtained during the first year of the Chandra mission are providing important clues about the mechanisms which produce X-rays on very young stars.
Cohen, David H., Gagné, M., Owocki, S. P., Ud-Doula, A.   +3 more
core   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

X-rays from quiescent low-mass X-ray binary transients [PDF]

, 2000
International audienceI argue that it is very unlikely that X- rays from quiescent black-hole low-mass X-ray binary transients are emitted by coronae of companion stars.
Lasota, J. -P.
core   +1 more source

The crystal structure of the Borrelia burgdorferi nicotinamidase BBE22 resolves a long‐standing annotation error

FEBS Open Bio, EarlyView.
The crystal structure of Borrelia burgdorferi nicotinamidase (PncA/BBE22) reveals the correct full‐length protein initiated from a non‐canonical AUU start codon. The structure validates previous biochemical findings and resolves a long‐standing annotation error, demonstrating that the truncated database sequence is structurally incompatible with the ...
Kalvis Brangulis
wiley   +1 more source