Results 61 to 70 of about 2,164,175 (301)

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

New radio telescope

Eos, Transactions American Geophysical Union, 1984
A new radio telescope to be placed atop 4205‐m‐high Mauna Kea in Hawaii will be the largest telescope of its kind ever built, and will open up previously unexplored submillimeter wavelengths to observation by astronomers when it begins operations in early 1986.
openaire   +1 more source

The Broad Line Radio Galaxy J2114+820

, 1998
In the frame of the study of a new sample of large angular size radio galaxies selected from the NRAO VLA Sky Survey, we have made radio observations of J2114+820, a low power radio galaxy with an angular size of 6'.
Cotton, W. D., Feretti, L., Giovannini, G., Lara, L., Marcaide, J. M., Marquez, I., Venturi, T.   +6 more
core   +2 more sources

Physical parameters of a relativistic jet at very high redshift: the case of the blazar J1430+4204 [PDF]

, 2010
Context. The high-redshift (z = 4.72) blazar J1430+4204 produced a major radio outburst in 2005. Such outbursts are usually associated with the emergence of a new component in the inner radio jet. Aims.
Celotti, Cohen, Cohen, Condon, Fabian, Ghisellini, Güijosa, Helmboldt, Hook, Hovatta, Kellermann, L. I. Gurvits, Lister, Lähteenmäki, P. Veres, Paragi, Readhead, S. Frey, Savolainen, Shepherd, Urry, Vermeulen, Worsley, Worsley, Z. Paragi   +24 more
core   +2 more sources

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

Unusual imaging presentation of infantile atypical Kawasaki disease

Indian Journal of Radiology and Imaging, 2016
Kawasaki disease is a systemic medium vessel vasculitis of unknown etiology affecting children under 5 years of age. There are no specific diagnostic tests, and thus, the diagnosis of the disease is primarily made on the basis of clinical criteria ...
Nishith Kumar, Mahesh Kumar Mittal, Mukul Sinha, Arpita Gupta, Brij Bhushan Thukral   +4 more
doaj   +1 more source

Three Decades of 3GPP Target Cell Search through 3G, 4G, and 5G

IEEE Access, 2020
This survey provides the reader with the open literature on the detailed operational scenarios of Target Cell Search (TCS) in both 3G and 4G systems, with a particular emphasis on the DownLink (DL).
Seunghwan Won, Sang Won Choi
doaj   +1 more source

A giant radio halo in the low luminosity X-ray cluster Abell 523

, 2011
Radio halos are extended and diffuse non-thermal radio sources present at the cluster center, not obviously associated with any individual galaxy. A strong correlation has been found between the cluster X-ray luminosity and the halo radio power.
Abell, Brown, Brown, Brunetti, Böhringer, Cassano, Cassano, Crawford, Ebeling, F. Govoni, Feretti, Ferrari, G. Giovannini, Giacintucci, Giovannini, Giovannini, Giovannini, Govoni, Govoni, Govoni, J. Bagchi, L. Feretti, Liang, M. Girardi, M. Murgia, Markevitch, Pisani, Struble, V. Vacca, Venturi   +29 more
core   +1 more source

On the Spectral Index of Distant Radio Galaxies [PDF]

, 2009
The problems of using the spectral index of radio galaxies in various tests, in particular, in selecting distant radio sources are considered. The history of the question of choosing a criterion of searching for distant radio galaxies based on the ...
A. G. Gorshkov, A. G. M. Tielens, A. I. Kopylov, B. L. Fanaroff, B. Vollmer, C. Breuck de, C. G. Bornancini, D. P. Schneider, D. Young De, G. Blumenthal, G. Miley, G. R. Whitfield, Gopal-Krishna, H. J. A. Röttgering, I. J. Klamer, J. J. Condon, J. J. Condon, K. C. Chambers, M. H. Wieringa, M. J. Disney, M. L. Khabibullina, M. L. Khabibullina, M. L. Khabibullina, M. Pedani, N. S. Soboleva, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. V. Verkhodanov, O. Verkhodanov, O. Verkhodanov, P. Kharb, R. A. Laing, R. D. Dagkesamanskii, R. D. Dagkesamanskii, R. M. Athreya, W. J. M. Breugel van, Yu. N. Parijskij, Yu. N. Parijskij   +43 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source