Results 51 to 60 of about 5,197 (132)

Parameterised Post-Newtonian Expansion in Screened Regions

, 2017
The parameterised post-Newtonian (PPN) formalism has enabled stringent tests of static weak-field gravity in a theory-independent manner. Here we incorporate screening mechanisms of modified gravity theories into the framework by introducing an effective
Lombriser, Lucas, McManus, Ryan, Peñarrubia, Jorge   +2 more
core   +1 more source

Split Quaternionic Representations of Horadam Sequences and Their Binet, Generating Function, and Cassini-Type Identities

Journal of Mathematics
This study establishes a novel algebraic connection between Horadam numbers and the split quaternion algebra. To this end, two fundamental constructs are introduced: the Fibonacci Sq,r-split quaternions and the Horadam sq,r-split quaternions, which ...
İskender Öztürk, Hasan Çakır
doaj   +1 more source

Mapping of Preoperative Screening Tools Reveals Urgent Need for Standardization in Gastrointestinal Cancer Surgery: A Scoping Review

World Journal of Surgery, Volume 50, Issue 4, Page 1017-1048, April 2026.
Although most screening tools are brief, feasible for self‐administration, and freely accessible, none integrated all three domains. Substantial heterogeneity in tools highlights the need for a comprehensive, validated multidomain preoperative screening tool for this population.
Alexandria Paige Petridis, Jack Reeves, Cherry Koh, Michael Solomon, Sascha Karunaratne, Kate Alexander, Nicholas Hirst, Neil Pillinger, Linda Denehy, Bernhard Riedel, Chelsia Gillis, Sharon Carey, Kate McBride, Kate White, Haryana M. Dhillon, Patrick Campbell, Raaj Kishore Biswas, Daniel Steffens   +17 more
wiley   +1 more source

Radio Pulse Power Distribution of Lightning in Jupiter's 2021–2022 Stealth Superstorms

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surveys and observations of lightning on Jupiter prior to the NASA Juno mission used night‐side imaging approaches, and a common conclusion was that the optical energy was similar to the highest energy terrestrial lightning flashes, or superbolts.
Michael H. Wong, Ivana Kolmašová, Fabiano A. Oyafuso, Masafumi Imai, Shinji Mizumoto, Steven M. Levin, Ramanakumar G. Sankar, Amy A. Simon, Shawn Brueshaber, Glenn S. Orton, Sushil K. Atreya, Cheng Li, Scott J. Bolton   +12 more
wiley   +1 more source

Comprehensive Characterization of Water Group Ion Composition and Distributions in Saturn's Magnetosphere With Cassini Plasma Spectrometer Data

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Saturn's magnetosphere is continuously supplied with neutrals from the Enceladus plume and the icy rings, which undergo ionization and charge‐exchange to form a complex water‐group plasma environment. While the Cassini Plasma Spectrometer (CAPS) instrument has provided extensive compositional information, detailed separation of individual ...
Thomas K. Kim, D. B. Reisenfeld, R. J. Wilson, H. T. Smith, A. K. Woodson, F. Allegrini, R. W. Ebert, M. G. Henderson, P. K. Kollmann, G. Livadiotis, G. Nicolaou, J. R. Szalay, P. W. Valek, A. Masters   +13 more
wiley   +1 more source

Plasma Dynamics and Structure of Titan's Induced Magnetosphere From Wave, Magnetic Field, and Plasma Measurements

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract In this study, we combine Cassini fields and particle observations to investigate Titan's induced magnetosphere from the TA to T82 flybys, including flybys from the Cassini prime, equinox, and part of the solstice mission, to investigate the average location and the shape of Titan's induced magnetosphere. Although earlier studies have provided
K. Kim, R. Modolo, N. J. T. Edberg, M. Morooka, N. Romanelli, C. Moissard, M. K. G. Holmberg, C. Bertucci, J.‐J. Berthelier, P. Canu, R. Piberne, A. J. Coates, E. Dubinin, L. Regoli, W. S. Kurth, J.‐E. Wahlund, J. H. Waite, M. K. Dougherty   +17 more
wiley   +1 more source

The Geometry of some Fibonacci Identities in the Hosoya Triangle

, 2018
In this paper we explore some Fibonacci identities that are interpreted geometrically in the Hosoya triangle. Specifically we explore a generalization of the Cassini and Catalan identities from a geometric point of view.
Flórez, Rigoberto, Higuita, Robinson A., Mukherjee, Antara   +2 more
core  

Statistical Study of Short Large‐Amplitude Magnetic Structures at Mars Observed by MAVEN

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract We present a statistical study of Short Large‐Amplitude Magnetic Structures (SLAMS) in the Martian foreshock using data from the Mars Atmosphere and Volatile Evolution (MAVEN) mission between 01 January 2015 and 31 December 2019. We have identified 21,008 SLAMS during this time interval and statistical results are presented on the SLAMS ...
Tsz Kiu Wong Chan, Tomas Karlsson, Sofia Bergman   +2 more
wiley   +1 more source

Detection of intact amino acids with a hypervelocity ice grain impact mass spectrometer. [PDF]

Proc Natl Acad Sci U S A, 2023
Burke SE, Auvil ZA, Hanold KA, Continetti RE.   +3 more
europepmc   +1 more source

Do adult Magicicada (Hemiptera: Cicadidae) feed? Historical perspectives and evidence from molecular gut content analysis. [PDF]

J Insect Sci, 2023
Hepler JR, Cooper WR, Cullum JP, Dardick C, Dardick L, Nixon LJ, Pouchnik DJ, Raupp MJ, Shrewsbury P, Leskey TC.   +9 more
europepmc   +1 more source