Results 61 to 70 of about 1,194,375 (170)

The Role of Magmatic Styles in Planetary Thermal Evolution Models

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Previous studies that investigated the effects of magmatism on the interior dynamics, in particular for Earth‐sized planets, suggest that magmatism leads to more efficient mantle cooling. However, the extent to which different magmatic styles influence the thermal evolution of planets, and in particular smaller rocky bodies, has not yet been ...
C. Herrera   +3 more
wiley   +1 more source

The Hadamard-type Padovan-p Sequences

open access: yes, 2020
In this paper, we define the Hadamard-type Padovan-p sequence by using the Hadamard-type product of characteristic polynomials of the Padovan sequence and the Padovan-p sequence. Also, we derive the generating matrices for these sequences. Then using the
Yesim Akuzum
core   +1 more source

A Free and Open‐Source Tool for Spectral Unit Mapping Through Clustering of NIR Hyperspectral Images on Mars

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Spectral and hyperspectral data provide essential information on the surface composition of rocky planetary bodies, through which we can reconstruct and understand their origin and geologic evolution. In this field, applications of advanced tools, such as machine learning‐based algorithms, are steadily increasing.
Beatrice Baschetti   +4 more
wiley   +1 more source

Padovan and Perrin hyperbolic spinors [PDF]

open access: yes
In this study, we intend to bring together Padovan and Perrin number sequences, which are one of the most popular third-order recurrence sequences, and hyperbolic spinors, which are used in several disciplines from physics to mathematics, with the help ...
Tosun, Murat   +2 more
core   +4 more sources

When Density Matters: Hydraulic and Salinity Evolution in Groundwater‐Fed Pit Lakes in Semiarid and Arid Climates

open access: yesGroundwater, Volume 64, Issue 4, Page 441-456, July/August 2026.
Pit lakes in semiarid and arid regions are often assumed to be terminal sinks for groundwater following mine closure. Using synthetic numerical modeling, we demonstrate that evaporation‐driven density gradients can reverse this behavior, transforming pit lakes into throughflow systems and potentially increasing salinity in adjacent aquifers.
Birte Moser   +3 more
wiley   +1 more source

The Extension of Added Sugar Use in Packaged Foods Targeted at Children in Brazil

open access: yesMaternal &Child Nutrition, Volume 22, Issue 3, July 2026.
ABSTRACT Excessive added sugars intake in early childhood has been associated with an increased risk of obesity and other non‐communicable diseases. In Brazil, packaged foods form a substantial part of children's diets, yet no studies have examined the presence of added sugars in products specifically marketed to this population.
Marília Valls   +8 more
wiley   +1 more source

Widespread Lateral Transmission in Fergusonina Galling Flies (Diptera: Fergusoninidae) and Their Obligate Nematode Mutualists Does Not Preclude an Overall Pattern of Cospeciation

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
The biology of gall‐forming fergusoninid flies and their obligate nematode mutualists suggests strict vertical transmission of nematodes between fly generations. Using mitochondrial sequence data to associate fly and nematode haplotypes, we found widespread intraspecific horizontal transfer in multiple species.
Sonja J. Scheffer   +10 more
wiley   +1 more source

The Padovan-Padovan p-Sequences in Groups

open access: yes, 2020
Erdag and Deveci [13] defined the Padovan-Padovan p-sequence and they studied properties of this sequence. Then, Akuzum and Deveci [1] studied the Padovan-Padovan p-sequence modulo m .
Yesim Akuzum
core   +1 more source

Impact Plasma Amplification of the Ancient Mercury Magnetic Field

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett   +6 more
wiley   +1 more source

Counting Maximal Distance-Independent Sets in Grid Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2013
Previous work on counting maximal independent sets for paths and certain 2-dimensional grids is extended in two directions: 3-dimensional grid graphs are included and, for some/any ℓ ∈ N, maximal distance-ℓ independent (or simply: maximal ℓ-independent ...
Euler Reinhardt   +2 more
doaj   +1 more source

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