Results 171 to 180 of about 84,803 (254)

Unraveling the Mystery of Melt Migration in Migmatites: From Channeling Instability to Pattern Formation

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Melt migration in partially molten rocks is commonly described by porous flow models controlled by the hydro‐mechanical compaction length, which effectively explains melt extraction at mid‐ocean ridges. However, this framework cannot account for the paradoxical accumulation of small melt fractions into rhythmic leucosome–melanosome bands in ...
Qingpei Sun   +3 more
wiley   +1 more source

Eco‐Epidemiological Mathematical Model Analysis With Time Delays and Hopf Bifurcation

open access: yesNatural Resource Modeling, Volume 39, Issue 2, May 2026.
ABSTRACT Ecological and infection predator prey mathematical model is important tool for understanding complex systems and forecasting outcomes biologically. Incorporating saturation mass action incidence rates representing the rate of susceptible prey infection as a function of time along with time delay terms, makes more realistic and reflective of ...
Solomon Molla Alemu   +2 more
wiley   +1 more source

Some Words in Reply

open access: yes
American Anthropologist, Volume 128, Issue 2, Page 424-426, June 2026.
Andrew Brandel
wiley   +1 more source

Measuring birational derived splinters

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract This work is concerned with categorical methods for studying singularities. Our focus is on birational derived splinters, which is a notion that extends the definition of rational singularities beyond varieties over fields of characteristic zero. Particularly, we show that an invariant called ‘level’ in the associated derived category measures
Timothy De Deyn   +3 more
wiley   +1 more source

Permanent Hydraulic and Poroelastic Property Changes in a Deep Aquifer Triggered by the Distant Tohoku Earthquake

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract While large earthquakes can alter groundwater systems far from the epicenter, their hydromechanical changes remain elusive. We investigate the 2011 Mw 9.0 Tohoku earthquake's impact on a deep well‐aquifer system ∼2,000 km from the epicenter. By employing the groundwater tidal and barometric pressure response methods, we perform tidal response ...
Guanru He   +5 more
wiley   +1 more source

On transcendental numbers

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1927
openaire   +2 more sources

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