Results 21 to 30 of about 32,755 (312)

The Deuterium Isotopic Ratio of Water Released From the Martian Caps as Measured With TGO/NOMAD

Geophysical Research Letters, 2022
We report vertical profiles of water and D/H for one Martian year as measured with the TGO/NOMAD instrument. The observations were performed via solar occultation, providing water profiles up to ∼100 km and D/H up to ∼60 km, with a vertical resolution of
Geronimo L. Villanueva, Giuliano Liuzzi, Shohei Aoki, Shane W. Stone, Adrian Brines, Ian R. Thomas, Miguel Angel Lopez‐Valverde, Loic Trompet, Justin Erwin, Frank Daerden, Bojan Ristic, Michael D. Smith, Michael J. Mumma, Sara Faggi, Vincent Kofman, Séverine Robert, Lori Neary, Manish Patel, Giancarlo Bellucci, Jose Juan Lopez‐Moreno, Ann Carine Vandaele   +20 more
doaj   +1 more source

Paleo-permeability in oceanic lithosphere inferred from vein mapping along the Wadi Haymiliyah of the Oman Ophiolite

Progress in Earth and Planetary Science
To assess the permeability structure of the oceanic lithosphere, we analyzed the field-based vein distribution and geometry in the Wadi Haymiliyah area of the Oman ophiolite.
Genya Sakamoto, Yuya Akamatsu, Kazumasa Tanimoto, Keishi Okazaki, Ikuo Katayama   +4 more
doaj   +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

Interferometric view into RT Pav’s long secondary period

Astronomy & Astrophysics
Context. Long secondary periods (LSPs) occur in roughly one third of evolved stars, yet their origin remains uncertain. Two leading hypotheses are oscillatory convective modes and a binary companion enshrouded in dust. Aims. We investigate the LSP in the
Courtney-Barrer B., Haubois X., Wood P., Dionese D., Decin L., Paladini C., El Mellah I., Defrère D., Ireland M.   +8 more
doaj   +1 more source

Carbonate clumped isotope thermometry of fault rocks and its possibilities: tectonic implications from calcites within Himalayan Frontal Fold-Thrust Belt

Progress in Earth and Planetary Science, 2021
Disentangling the temperature and depth of formation of fault rocks is critical for understanding their rheology, exhumation, and the evolution of fault zones.
Dyuti Prakash Sarkar, Jun-ichi Ando, Akihiro Kano, Hirokazu Kato, Gautam Ghosh, Kaushik Das   +5 more
doaj   +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

MAHLI on Mars: lessons learned operating a geoscience camera on a landed payload robotic arm [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2016
The Mars Hand Lens Imager (MAHLI) is a 2-megapixel, color camera with resolution as high as 13.9 µm pixel−1. MAHLI has operated successfully on the Martian surface for over 1150 Martian days (sols) aboard the Mars Science Laboratory (MSL) rover ...
R. A. Yingst, K. S. Edgett, M. R. Kennedy, G. M. Krezoski, M. J. McBride, M. E. Minitti, M. A. Ravine, R. M. E. Williams   +7 more
doaj   +1 more source

Dynamical Habitability of Planetary Systems [PDF]

Astrobiology, 2010
The problem of the stability of planetary systems, a question that concerns only multiplanetary systems that host at least two planets, is discussed. The problem of mean motion resonances is addressed prior to discussion of the dynamical structure of the more than 350 known planets.
Dvorak, Rudolf, Pilat-Lohinger, Elke, Bois, Eric, Schwarz, Richard, Funk, Barbara, Beichman, Charles, Danchi, William, Eiroa, Carlos, Fridlund, Malcolm, Henning, Thomas, Herbst, Tom, Kaltenegger, Lisa, Lammer, Helmut, Léger, Alain, Liseau, René, Lunine, Jonathan, Paresce, Francesco, Penny, Alan, Quirrenbach, Andreas, Röttgering, Huub, Selsis, Franck, Schneider, Jean, Stam, Daphne, Tinetti, Giovanna, White, Glenn J.   +24 more
openaire   +4 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Towards planetary health systems: a manifesto for a revised quadruple aim for healthcare improvement

Global Sustainability
Non-technical summary Healthcare systems significantly impact the environment, which in turn affects human health. To address this, we propose to revise a popular framework for healthcare improvement, by introducing the advancement of planetary health ...
Alessio Perilli, Andrea Adduci, Walter Ricciardi, Antonio Giulio de Belvis, Chiara Cadeddu   +4 more
doaj   +1 more source