Results 61 to 70 of about 3,858,273 (345)

Applied X Rays

British Journal of Radiology: BIR Section, 1927
Mode of access: Internet.
openaire   +1 more source

Star Formation in Orion's L1630 Cloud: an Infrared and Multi-epoch X-ray Study

, 2014
X-ray emission is characteristic of young stellar objects (YSOs) and is known to be highly variable. We investigate, via an infrared and multi-epoch X-ray study of the L1630 dark cloud, whether and how X-ray variability in young stellar objects is ...
Grosso, Nicolas, Hamaguchi, Kenji, Kastner, Joel H., Principe, David A., Richmond, Michael, Teets, William K., Weintraub, David A.   +6 more
core   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

ROSAT HRI X-ray Observations of the Open Globular Cluster NGC 288 [PDF]

, 1999
A ROSAT HRI X-ray image was obtained of the open globular cluster NGC 288, which is located near the South Galactic Pole. This is the first deep X-ray image of this system.
Barbara Paltrinieri, Craig L. Sarazin, Ferraro F. R., Fox D., Francesco R. Ferraro, Hasinger G., Irwin J., Jimmy A. Irwin, Johnston H. M., Predehl P., Robert T. Rood, Verbunt F.   +11 more
core   +2 more sources

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Utilizing Quantum Annealing in Computed Tomography Image Reconstruction

IEEE Transactions on Quantum Engineering
One of the primary difficulties in computed tomography (CT) is reconstructing cross-sectional images from measured projections of a physical object. There exist several classical methods for this task of generating a digital representation of the object,
Kilian Dremel, Dimitri Prjamkov, Markus Firsching, Mareike Weule, Thomas Lang, Anastasia Papadaki, Stefan Kasperl, Martin Blaimer, Theobald O. J. Fuchs   +8 more
doaj   +1 more source

Analysis of the expression of genes involved in proliferation and apoptosis in cervical intraepithelial neoplasias and cancer of the cervix uteri

Опухоли женской репродуктивной системы, 2014
The viral nature of many female genital cancers is now beyond question. By taking into account this fact, the problem of qualitative assessment ofthenatureofcervicalintraepithelialneoplasia(CIN)anditsfocusonprogressiontoinvasivecarcinomabecomesquitenatu ...
V. K. Bozhenko, L. A. Ashrafyan, I. B. Antonova, N. V. Melnikova, O. N. Burmenskaya, D. Yu. Trofimov, E. A. Kudinova, L. Z. Khunova, A. V. Slonov, O. P. Bliznyukov   +9 more
doaj   +1 more source

An X-ray Imaging Study of the Stellar Population in RCW49

, 2007
We present the results of a high-resolution X-ray imaging study of the stellar population in the Galactic massive star-forming region RCW49 and its central OB association Westerlund 2.
Baraffe I., Belloni T., Berghoefer T. W., Cannon A. J., D. Baba, Dreyer J. L. E., E. B. Churchwell, E. D. Feigelson, G. P. Garmire, Gum C. S., J. Wang, K. V. Getman, Kesteven M. J. L., L. K. Townsley, M. Tamura, M. Tsujimoto, Moffat A. F. J., Morris P. W., P. S. Broos, Rodgers A. W., Siess L., T. Nagayama, van der Hucht K. A., Westerlund B., Whiteoak J. B. Z.   +24 more
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

(E)-1-(Benzo[d][1,3]dioxol-5-yl)-3-([2,2′-bithiophen]-5-yl)prop-2-en-1-one: crystal structure, UV–Vis analysis and theoretical studies of a new π-conjugated chalcone

Acta Crystallographica Section E: Crystallographic Communications, 2019
In the title compound, C18H12O3S2, synthesized by the Claisen–Schmidt condensation method, the essentially planar chalcone unit adopts an s-cis configuration with respect to the carbonyl group within the ethylenic bridge.
Ainizatul Husna Anizaim, Muhamad Fikri Zaini, Muhammad Adlan Laruna, Ibrahim Abdul Razak, Suhana Arshad   +4 more
doaj   +1 more source