Results 71 to 80 of about 73,488 (203)

Random block-coordinate methods for inconsistent convex optimisation problems

Fixed Point Theory and Algorithms for Sciences and Engineering, 2023
We develop a novel randomised block-coordinate primal-dual algorithm for a class of non-smooth ill-posed convex programs. Lying midway between the celebrated Chambolle–Pock primal-dual algorithm and Tseng’s accelerated proximal gradient method, we ...
Mathias Staudigl, Paulin Jacquot
doaj   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

The Effect of Cryopreserved Human Placental Tissues on Biofilm Formation of Wound-Associated Pathogens

Journal of Functional Biomaterials, 2018
Biofilm, a community of bacteria, is tolerant to antimicrobial agents and ubiquitous in chronic wounds. In a chronic DFU (Diabetic Foot Ulcers) clinical trial, the use of a human cryopreserved viable amniotic membrane (CVAM) resulted in a high rate of ...
Yong Mao, Anya Singh-Varma, Tyler Hoffman, Sandeep Dhall, Alla Danilkovitch, Joachim Kohn   +5 more
doaj   +1 more source

Drift-corrected Odin-OSIRIS ozone product: algorithm and updated stratospheric ozone trends [PDF]

Atmospheric Measurement Techniques, 2018
A small long-term drift in the Optical Spectrograph and Infrared Imager System (OSIRIS) stratospheric ozone product, manifested mostly since 2012, is quantified and attributed to a changing bias in the limb pointing knowledge of the instrument.
A. E. Bourassa, C. Z. Roth, D. J. Zawada, L. A. Rieger, C. A. McLinden, D. A. Degenstein   +5 more
doaj   +1 more source

The Black Hole Mass in Brightest Cluster Galaxy NGC 6086

, 2010
We present the first direct measurement of the central black hole mass, M_BH, in NGC 6086, the Brightest Cluster Galaxy (BCG) in Abell 2162. Our investigation demonstrates for the first time that stellar dynamical measurements of M_BH in BCGs are ...
Gebhardt, Karl, Graham, James R., Lauer, Tod R., Ma, Chung-Pei, McConnell, Nicholas J., Richstone, Douglas O., Wright, Shelley A.   +6 more
core   +1 more source

Non‐innocent solvents in meteorite extractions: Evidence for artifact formation

Meteoritics &Planetary Science, EarlyView.
Abstract Solvent extraction is a cornerstone of meteoritic organic and inorganic chemistry, yet the assumption that common solvents act as chemically inert media is becoming increasingly untenable. This study reports that low‐molecular‐weight alcohols, particularly methanol and ethanol, are “non‐innocent” solvents when used to extract soluble sulfur ...
N. Randazzo, R. W. Hilts, R. M. Whittal, B. Reiz, V. Olan‐Rubio, C. D. K. Herd, I. H. Krouse   +6 more
wiley   +1 more source

OSIRIS-APEX: An OSIRIS-REx Extended Mission to Asteroid Apophis

The Planetary Science Journal, 2023
The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) spacecraft mission characterized and collected a sample from asteroid (101955) Bennu.
Daniella N. DellaGiustina, Michael C. Nolan, Anjani T. Polit, Michael C. Moreau, Dathon R. Golish, Amy A. Simon, Coralie D. Adam, Peter G. Antreasian, Ronald-Louis Ballouz, Olivier S. Barnouin, Kris J. Becker, Carina A. Bennett, Richard P. Binzel, Brent J. Bos, Richard Burns, Nayessda Castro, Steven R. Chesley, Philip R. Christensen, M. Katherine Crombie, Michael G. Daly, R. Terik Daly, Heather L. Enos, Davide Farnocchia, Sandra Freund Kasper, Rose Garcia, Kenneth M. Getzandanner, Scott D. Guzewich, Christopher W. Haberle, Timothy Haltigin, Victoria E. Hamilton, Karl Harshman, Noble Hatten, Kyle M. Hughes, Erica R. Jawin, Hannah H. Kaplan, Dante S. Lauretta, Jason M. Leonard, Andrew H. Levine, Andrew J. Liounis, Christian W. May, Laura C. Mayorga, Lillian Nguyen, Lynnae C. Quick, Dennis C. Reuter, Edgard Rivera-Valentín, Bashar Rizk, Heather L. Roper, Andrew J. Ryan, Brian Sutter, Mathilde M. Westermann, Daniel R. Wibben, Bobby G. Williams, Kenneth Williams, C. W. V. Wolner   +53 more
doaj   +1 more source

The Distance and Morphology of V723 Cassiopeiae (NOVA CASSIOPEIA 1995)

, 2011
We present spatially resolved infrared spectra of V723 Cas (Nova Cassiopeia 1995) obtained over four years with the integral field spectrograph OSIRIS on Keck II.
Chochol, Evans, Gehrz, Hirosawa, Horne, Hutchings, J. E. Lyke, Krautter, Larkin, Lloyd, Lyke, Lyke, Lynch, Ness, Ohshima, Paresce, R. D. Campbell, Reconditi, Rudy, Slavin, Starrfield   +20 more
core   +1 more source

Red Eyes on Wolf-Rayet Stars: 60 New Discoveries via Infrared Color Selection [PDF]

, 2011
We have spectroscopically identified 60 Galactic Wolf-Rayet (WR) stars, including 38 nitrogen types (WN) and 22 carbon types (WC). Using photometry from the Spitzer/GLIMPSE and 2MASS databases, the WRs were selected via a method we have established that ...
Mauerhan, Jon C., Morris, Patrick. W., Van Dyk, Schuyler D.   +2 more
core   +2 more sources

The Goldilocks Effect: How the “Just Right” Writing Styles of Global Corporate Responsibility Frameworks Shapes Their Use by Businesses

Regulation &Governance, EarlyView.
ABSTRACT The 21st century has witnessed a surge in the number of global corporate responsibility (GCR) frameworks issued by international organizations (IOs). Our study investigates whether and to what extent these frameworks shape businesses' Corporate Social Responsibility (CSR) communications.
Adam William Chalmers, Robyn Klingler‐Vidra   +1 more
wiley   +1 more source