Results 221 to 230 of about 11,479 (277)

Fear or feast: small mammal activity increases in the presence of carcasses despite increased threat of predation by black‐backed jackals

Wildlife Biology, EarlyView.
Food acquisition is arguably the most important, and among the riskiest behaviours for most mammals. Carcasses are an ephemeral resource for many scavengers, particularly black‐backed jackals Lupulella mesomelas that prey on small mammals. Landscape of fear theory suggests that prey species should reduce their activity in areas of high predator ...
Haemish I. A. S. Melville, W. Maartin Strauss   +1 more
wiley   +1 more source

A Faint Progenitor System for the Faint Supernova 2024vjm

Zimmerman E, Gal-Yam A, Groot P, Ofek E, Roestel Jv, Pastorello A, Valenti S, Ravi A, Chen P, Schulze S, Blagorodnova N, Wavasseur M, Gómez-Muñoz M, Tranin H, de Wet S, Leloudas G, Vreeswijk P, Kwok L, Schwab M, Jha S, Maguire K, Sand D, Stringer E, Kupfer T, Faran T, Anderson J, Andrews J, Andrews M, Badash A, Bloemen S, Bostroem K, Chen T, Valle MD, Dimitriadis G, Dong Y, Farah J, Gillanders J, Godson B, Gromadzki M, Hiramatsu D, Hoang E, Howell D, Janzen D, Kuncarayakti H, Li J, Lyman J, Maeda K, Magee M, Mehta D, Milligan A, Moran S, Ni YQ, O’Neill D, Pearson J, Pieterse D, Pignata G, Reguitti A, Reichart D, Retamal NM, Santos R, Scaringi S, Shrestha M, Srivastav S, Stoppa F, Subrayan B, Valerin G, Wang X, Wynn K, Yaron O, Zang W.   +69 more
europepmc   +1 more source

Acceleration noise due to space magnetic field for heliocentric gravitational wave detector. [PDF]

Sci Rep
Peng JH, Zhang JX, Hong W, Su W, Ni Y, Guo J, Zheng R.   +6 more
europepmc   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

Nat Commun
Chen B, Li G, Yuan H, Xiang M, Zhou J, Chen P, Krause M, Coombs A.   +7 more
europepmc   +1 more source

Uncovering hidden bias in neutron diffraction residual strain measurements

Journal of Applied Crystallography, EarlyView.
This work demonstrates that diffraction‐based residual strain calculations and uncertainty estimates depend on how grain populations are sub‐sampled, with important implications for interpreting residual stresses in heterogeneous materials with fine‐scale microstructure and strain gradients.When calculating residual strain via neutron or X‐ray ...
Cole Franz, Michael Prime, Jeffrey Bunn, Andrew Payzant, Katharine Page   +4 more
wiley   +1 more source

A Stellar magnesium to silicon ratio in the atmosphere of an exoplanet. [PDF]

Nat Commun
Sanchez JA, Smith PCB, Kanumalla K, Welbanks L, Line MR, Pelletier S, Desch S, Young P, Patience J, Bean J, Brogi M, Jaffe D, Mace GN, Mansfield MW, Panwar V, Parmentier V, Pino L, Savel AB, Sluijs LV, Wardenier JP.   +19 more
europepmc   +1 more source

Space science in the twenty-first century; imperatives for the decades 1995 to 2015: astronomy and astrophysics

, 1988
National Research Council. Washington, DC. Space Science Board
core  

X‐ray fluorescence microscopy exposure estimates using a single excitation energy

Journal of Synchrotron Radiation, EarlyView.
We present calculations on the number of illuminating photons per pixel required for elemental detection using X‐ray fluorescence, even with far‐from‐threshold excitation.Scanning fluorescence X‐ray microscopy is widely used for quantitative mapping of elemental concentrations, including in studies of essential but low‐concentration metals in cells ...
Benjamin Roter, Andrew M. Crawford, Thomas V. O'Halloran, Chris Jacobsen   +3 more
wiley   +1 more source

Correlation between active regions' spectra at high radio frequencies and solar flare occurrences. [PDF]

Sci Rep
Mulas S, Pellizzoni A, Marongiu M, Marcucci A, Righini S, Iacolina MN, Egron E, Murtas G, Bachetti M, Berrilli F, Cabras A, Caocci R, Deiana GL, Guglielmino SL, Haggerty C, Ladu A, Loru S, Maccaferri A, Marongiu P, Melis A, Navarrini A, Orfei A, Ortu P, Pili M, Pisanu T, Pupillo G, Saba A, Schirru L, Serra G, Tiburzi C, Valente G, Zanichelli A, Zucca P, Messerotti M.   +33 more
europepmc   +1 more source