Results 61 to 70 of about 38,497 (193)

Unmanaged forest swamps benefit saproxylic and soil‐inhabiting crane fly communities

Insect Conservation and Diversity, EarlyView.
Species richness of both saproxylic and soil‐inhabiting crane flies was consistently higher in unmanaged forests across all habitat types. Soil‐inhabiting species thrived in swamps and ditches, while saproxylic richness was linked to low light and high soil moisture, independent of habitat type.
David Bille Byriel, Mathias Just Justesen, Sebastian Kepfer‐Rojas, Lasse Gottlieb, Inger Kappel Schmidt   +4 more
wiley   +1 more source

Renormalized primordial black holes

Journal of Cosmology and Astroparticle Physics
Abstract The formation of primordial black holes in the early universe may happen through the collapse of large curvature perturbations generated during a non-attractor phase of inflation or through a curvaton-like dynamics after inflation. The fact that such small-scale curvature perturbation is typically non-Gaussian leads to the
G. Franciolini, A. Ianniccari, A. Kehagias, D. Perrone, A. Riotto   +4 more
openaire   +3 more sources

Mechanism for the Suppression of Intermediate-Mass Black Holes

, 2010
A model for the formation of supermassive primordial black holes in galactic nuclei with the simultaneous suppression of the formation of intermediate-mass black holes is presented. A bimodal mass function for black holes formed through phase transitions
A. D. Dolgov, A. Dolgov, A. Dolgov, A. King, A. Starobinsky, B. J. McNamara, B. Lanzoni, D. A. Samarchenko, E. Noyola, G. Illingworth, H. Baumgardt, H. Mii, K. Gebhardt, K. J. Mack, L. M. Ozernoy, M. C. Begelman, M. C. Miller, M. G. Haehnelt, M. J. Rees, M. Mapelli, M. Yu. Khlopov, M. Yu. Khlopov, N. Kawakatu, R. R. Islam, R. R. J. Antonucci, S. G. Rubin, S. G. Rubin, S. G. Rubin, S. G. Rubin, S.-J. Rey, T. P. Roberts, V. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, V. I. Dokuchaev, Yu. N. Eroshenko   +39 more
core   +1 more source

Non-Primordial Solar Mass Black Holes [PDF]

, 2018
We propose a mechanism that can convert a sizeable fraction of neutron stars into black holes with mass $\sim 1M_\odot$, too light to be produced via standard stellar evolution.
Kouvaris, Chris, Tinyakov, Peter, Tytgat, Michel H. G.   +2 more
core   +2 more sources

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

Rapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel, Christophe Lécuyer, Emilie Thomassot, Etienne Deloule, Charles Ojeimi   +4 more
wiley   +1 more source

Primordial seeds of supermassive black holes

, 2012
Supermassive black holes exist in the centers of galaxies, including Milky Way, but there is no compelling theory of their formation. Furthermore, observations of quasars imply that supermassive black holes have already existed at some very high ...
Kawasaki, Masahiro, Kusenko, Alexander, Yanagida, Tsutomu T.   +2 more
core   +1 more source

“It Will Get Crowded, It Will Get Dull!”: Preventive Sensations of Density in Zurich's Future‐Making

City &Society, Volume 38, Issue 1, April 2026.
ABSTRACT In Zurich, Switzerland's largest and wealthiest city, future planning around densification has been intensely debated in recent years, spurring referendums and direct democratic votes, and permeating the public discourse through governmental communication, political propaganda, and heightened media coverage.
Sabrina Stallone
wiley   +1 more source

Scalaron–Higgs inflation reloaded: Higgs-dependent scalaron mass and primordial black hole dark matter

European Physical Journal C: Particles and Fields, 2021
We propose an extension of the scalaron-Higgs model by a non-minimal coupling of the Standard Model Higgs boson to the quadratic Ricci scalar resulting in a Higgs-dependent scalaron mass.
Anirudh Gundhi, Christian F. Steinwachs
doaj   +1 more source

Primordial black holes from fifth forces

, 2018
Primordial black holes can be produced by a long range attractive fifth force stronger than gravity, mediated by a light scalar field interacting with nonrelativistic "heavy" particles.
Amendola, Luca, Rubio, Javier, Wetterich, Christof   +2 more
core   +1 more source

Variational Thermomechanically Coupled Shape Memory Alloy Material Model and Optimization of Shape Memory Alloy Based Out‐of‐Plane Bistable Microactuator

International Journal for Numerical Methods in Engineering, Volume 127, Issue 3, 15 February 2026.
ABSTRACT This work presents a fully thermomechanically coupled material model for shape memory alloys (SMAs), capable of predicting shape memory effect, superelasticity, stress and strain recovery, and martensite reorientation. Formulated within the Generalized Standard Material (GSM) framework, the model employs a rate potential, whose variations ...
Muhammad Babar Shamim, Hauke Goldbeck, Stephan Wulfinghoff   +2 more
wiley   +1 more source