Results 131 to 140 of about 663,816 (320)

Commodity risk assessment of Populus alba, Populus nigra and Populus tremula plants from the UK

EFSA Journal, Volume 23, Issue 3, March 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by plants of Populus alba, Populus nigra and ...
EFSA Panel on Plant Health (PLH), Antonio Vicent Civera, Paula Baptista, Anna Berlin, Elisavet Chatzivassiliou, Jaime Cubero, Nik Cunniffe, Eduardo de la Peña, Nicolas Desneux, Francesco Di Serio, Anna Filipiak, Beata Hasiów‐Jaroszewska, Hervé Jactel, Blanca B. Landa, Lara Maistrello, David Makowski, Panagiotis Milonas, Nikos Papadopoulos, Roel Potting, Hanna Susi, Dirk Jan van Der Gaag, Andrea Battisti, Claude Bragard, Christer Sven Magnusson, Hugo Mas, Daniel Rigling, Massimo Faccoli, Alžběta Mikulová, Fabio Stergulc, Eugen Christoph, Olaf Mosbach‐Schulz, Franz Streissl, Paolo Gonthier   +32 more
wiley   +1 more source

Chandra Evidence of a Flattened, Triaxial Dark Matter Halo in the Elliptical Galaxy NGC 720 [PDF]

, 2002
We present an analysis of a Chandra ACIS-S observation of the elliptical galaxy NGC 720, to verify the existence of a dark matter halo and to measure its ellipticity.
D. Buote, T. Jeltema, C. Canizares, G. Garmire   +3 more
semanticscholar   +1 more source

Hubble Space Telescope Imaging of the CFRS and LDSS Redshift Surveys---III. Field elliptical galaxies at 0.2 < z < 1.0

, 1999
Surface photometry has been performed on a sample of 46 field elliptical galaxies. These galaxies are described well by a deVaucouleurs R^{1/4} profile. The sample was selected from the combined Canada-France and LDSS redshift surveys and spans the range
Aragon-Salamanca, Barger, Barnes, Barrientos, Baugh, Bender, Bender, Bower, Brinchmann, Courteau, D. Crampton, David Schade, de Vaucouleurs, Dressler, Driver, Ellis, Ellis, Forbes, Franceschini, François Hammer, Guzman, Hammer, Hau, Im, Jarle Brinchmann, Jorgensen, K. Glazebrook, Kauffman, Kauffmann, Kauffmann, Kelson, L. Tresse, Larson, Le Fèvre, Lilly, Marzke, Matthew Colless, Menanteau, Mobasher, Negroponte, O. Le Fèvre, Pahre, Pahre, Patton, Press, R. Abraham, R. S. Ellis, S. J. Lilly, Scalo, Schade, Schade, Schade, Silva, Silva, Stanford, Tom Broadhurst, Totani, van der Kruit, van Dokkum, van Dokkum, White   +60 more
core   +2 more sources

The Absence of Passively Evolving Ellipticals in Deep Optical and Near-Infrared Surveys [PDF]

arXiv, 1997
The traditional view of elliptical galaxies has been that they formed in a single, rapid burst of star formation at high redshift, and have evolved quiescently since that time. In opposition to this traditional view is evidence that at least some elliptical galaxies have formed from the merger of two disk galaxies.
arxiv  

Modular Tunable α‐Helical Peptide Hydrogels for Neuronal Cells

Advanced Functional Materials, Volume 35, Issue 1, January 2, 2025.
Rationally designed peptides are used to alter the elastic properties of α‐helical hydrogels, to introduce adhesion peptides and growth factors, and to spatially pattern proteins. The modularity of the hydrogelating self‐assembling fiber (hSAF) system provides a flexible platform for manipulating primary neural cell behavior, with potential future ...
D. Arne Scott, Alexandra Wasmuth, Edgardo Abelardo, Kieran L. Hudson, Andrew R. Thomson, Martin A. Birchall, Nazia Mehrban, Jeremy M. Henley, Derek N. Woolfson   +8 more
wiley   +1 more source

High resolution soft x-ray spectroscopy of the elliptical galaxy NGC 5044. Results from the reflection grating spectrometer on-board XMM-Newton [PDF]

, 2002
The results from an X-ray spectroscopic study of the giant elliptical galaxy NGC 5044 in the center of a galaxy group are presented. The line dominated soft X-ray spectra (mainly Fe-L and $\ion{O}{viii}$ ${\rm Ly\alpha}$) from the diffuse gas are ...
T. Tamura, J. Kaastra, K. Makishima, I. Takahashi   +3 more
semanticscholar   +1 more source

Two-component mass models of the lensing galaxy in the quadruply imaged supernova iPTF16geu

The Open Journal of Astrophysics, 2020
The first resolved, multiply imaged supernova Type Ia, iPTF16geu, was observed 4 years ago, five decades after such systems were first envisioned. Because of the unique properties of the source, these systems hold a lot of promise for the study of galaxy
Liliya L.R. Williams, David Zegeye
doaj   +1 more source

NO THE HOLMBERG EFFECT FOR GALAXY PAIRS SELECTED FROM THE SDSS DR9 AT Z ≤ 0:06

Odessa Astronomical Publications, 2016
We studied the Holmberg effect in galaxy pairs selected from the SDSS DR9, where 60561galaxies were limited by redshift 0.02 < z < 0.06 and absolute magnitude: Mr ≤ −20.7 m for central galaxies (N=18578) and Mr > −21.5 m for neighbor galaxies (N=41983 ...
D. V. Dobrycheva, I. B. Vavilova
doaj   +1 more source

Molecular Gas in Elliptical Galaxies [PDF]

arXiv, 2000
The distribution and kinematics of the molecular gas in elliptical galaxies give information on the origin and history of the gas and the rate of star formation activity in ellipticals. I describe some preliminary results of a survey which will more than double the number of elliptical galaxies with resolved molecular distributions.
arxiv  

Ionospheric Conductances at the Giant Planets of the Solar System: A Comparative Study of Ionization Sources and the Impact of Meteoric Ions

Journal of Geophysical Research: Space Physics, Volume 130, Issue 1, January 2025.
Abstract The dynamics of giant planet magnetospheres is controlled by a complex interplay between their fast rotation, their interaction with the solar wind, and their diverse internal plasma and momentum sources. In the ionosphere, the Hall and Pedersen conductances are two key parameters that regulate the intensity of currents coupling the ...
Noé Clément, Yuki Nakamura, Michel Blanc, Yuxian Wang, Sariah Al Saati   +4 more
wiley   +1 more source