Results 61 to 70 of about 328,442 (163)

The Fundamental Plane of Galaxy Group Mergers [PDF]

open access: yesarXiv, 2012
We present a series of hundreds of collisionless simulations of galaxy group mergers. These simulations are designed to test whether the properties of elliptical galaxies - including the key fundamental plane scaling relation, morphology and kinematics - can be simultaneously reproduced by dry multiple mergers in galaxy groups.
arxiv  

ArtProtect: Blockchain and NFC‐based anti‐counterfeit system for physical art

open access: yesIET Blockchain, Volume 4, Issue 4, Page 423-442, December 2024.
An anti‐counterfeiting system for physical art based on Ethereum blockchain and near‐field communication technology is proposed and implemented. The system leverages the use of Ethereum smart contracts and inter‐planetary file system to store artworks’ certificate of authenticity, and display them in a mobile app called ArtProtect.
Cindy Handoko Tantowibowo   +1 more
wiley   +1 more source

Multimodality Imaging for Transcatheter Tricuspid Regurgitation Interventions: Novel Approaches to the Forgotten Valve

open access: yesEchocardiography, Volume 41, Issue 12, December 2024.
Central Illustration: The role of multimodality imaging for transcatheter tricuspid valve interventions (TTVI): echocardiography is used for the evaluation of the severity and mechanism of tricuspid regurgitation (TR), for the assessment of the pulmonary pressure and right ventricular (RV) function and for anatomical feasibility for transcatheter ...
Francesca Coraducci   +11 more
wiley   +1 more source

Development of hard X‐ray photoelectron spectroscopy in liquid cells using optimized microfabricated silicon nitride membranes

open access: yesJournal of Synchrotron Radiation, Volume 31, Issue 6, Page 1505-1513, November 2024.
We have developed and successfully tested new environmental liquid cells for HAXPES studies using specially designed thin, low‐stress silicon nitride membranes (15 to 25 nm thickness). The novel aspect is the fabrication of the membranes considering the geometry of the experimental setup, the dimensions of the beam and the use of platinum stripes to ...
F. Capone   +10 more
wiley   +1 more source

The macroscopical anatomy of the lungs and thorax of the African lion (Panthera leo)

open access: yesActa Zoologica, Volume 105, Issue 4, Page 482-495, October 2024.
Abstract The left and right lungs extend from the second rib to the 13th, while only a small portion is present cranial to the 4th rib. The basal border of the left lung extends horizontally from the second costochondral junction (CCJ) to just ventral to the seventh CCJ, and then dorso‐caudally to the angle of the 13th rib. The right lung has a similar
Carmen Alicia Marais   +1 more
wiley   +1 more source

Ultra-Luminous Infrared Mergers: Elliptical Galaxies in Formation? [PDF]

open access: yes, 2001
We report high quality near-infrared spectroscopy of 12 ultra-luminous infrared galaxy mergers (ULIRGs). Our new VLT and Keck data provide ~0.5" resolution, stellar and gas kinematics of these galaxies most of which are compact systems in the last merger stages. We confirm that ULIRG mergers are 'ellipticals-in-formation'.
arxiv   +1 more source

Pride of the East: Motorcycle Speedway, Transnational Encounters and Provincial Heartlands

open access: yesHistory, Volume 109, Issue 386-387, Page 335-366, September 2024.
Abstract For a century, speedway has operated on a transnational basis. Its riders, competitions and machinery regularly traverse national and continental borders. The imposition of the Cold War's Iron Curtain did little to impede its growth. This article focuses on one of speedway's far‐flung and diverse provincial heartlands to show how the sport ...
RICHARD MILLS
wiley   +1 more source

Leaf Shelters Facilitate the Colonisation of Arthropods and Enhance Microbial Diversity on Plants

open access: yesEcology Letters, Volume 27, Issue 9, September 2024.
This research demonstrates that ecosystem engineers, through the construction of leaf shelters, play a critical role in shaping not only arthropod community assembly but also the dynamics of the phyllosphere microbial community. We identified specific bacterial taxa with strong associations with leaf shelters, revealing a shift in microbial community ...
Danilo F. B. dos Santos   +8 more
wiley   +1 more source

Architecture Design and Ground Performance of Netherlands‐China Low‐Frequency Explorer

open access: yesRadio Science, Volume 59, Issue 8, August 2024.
Abstract The Netherlands‐China Low‐Frequency Explorer (NCLE) (Boonstra et al., 2017, https://www.ursi.org/proceedings/procGA17/papers/Paper_J19‐2(1603).pdf; Chen et al., 2020, https://ui.adsabs.harvard.edu/abs/2020AAS…23610203C/abstract) is a radio instrument for astrophysical studies in the low‐frequency range (80 kHz–80 MHz).
Sukanth Karapakula   +38 more
wiley   +1 more source

Dynamic optical coherence tomography unveils subclinical, vascular differences across actinic keratosis grades I–III

open access: yesExperimental Dermatology, Volume 33, Issue 8, August 2024.
Abstract Actinic keratosis (AK) classification relies on clinical characteristics limited to the skin's surface. Incorporating sub‐surface evaluation may improve the link between clinical classification and the underlying pathology. We aimed to apply dynamic optical coherence tomography (D‐OCT) to characterize microvessels in AK I‐III and photodamaged (
Gabriella Fredman   +8 more
wiley   +1 more source

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