Results 51 to 60 of about 2,200,433 (156)

Meshing Unsigned Distance Fields with Regular Triangulations

open access: yesComputer Graphics Forum, EarlyView.
Abstract Unsigned distance fields (UDF) are a versatile, implicit representation of geometry. They can represent surfaces that are not bounding a solid or contain points or curves that are not manifold, for example several sheets meeting along a common curve. Contouring the implicit representation, i.e. turning it into an explicit one, requires finding
M. Kohlbrenner, M. Alexa
wiley   +1 more source

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

open access: yesEuropean 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

E-models of inflation and primordial black holes

open access: yesFrontiers in Physics, 2022
We propose and study the new (generalized) E-type α-attractor models of inflation, in order to include formation of primordial black holes (PBHs). The inflaton potential has a near-inflection point where slow-roll conditions are violated, thus leading to
Daniel Frolovsky   +4 more
doaj   +1 more source

Geodesic Geometry of Black Holes [PDF]

open access: yes, 2006
The study of geodesics is of intrinsic significance in the study of the geometry of space-time. In this thesis null, space-like and time-like geodesics are studied in the case of the space-times of Schwarzschild, Reissner-Nordstrouml;m and Kerr black ...
Slezakova, Gabriela
core  

Guises of Despair

open access: yesEuropean Journal of Philosophy, EarlyView.
ABSTRACT In ‘Is Hope A Secular Virtue?’ (2024), Bob Stern and I argued that despairing involves being unable to stop desiring something we deem of great value while believing that this good can neither be obtained, nor return on its own. We characterised despair as one of the two vices hope sits between as a virtue (the opposite vice being unwarranted ...
Béatrice Han‐Pile
wiley   +1 more source

Quantum Aspects of Black Holes [PDF]

open access: yes, 2006
In this thesis we study two quantum aspects of black holes, their entropy and the Hawking effect. First, we present a model for the statistical interpretation of black hole entropy and show that this entropy emerges as a result of missing information ...
Deeg, Dorothea
core   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Nucleation, Growth, and Green Chemistry

open access: yesChemSusChem, Volume 19, Issue 19, 14 October 2026.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the nucleation and growth of ZnO nanowires by chemical bath deposition, involving seed layer and chemicals effects, elongation process modeling, selective area growth approach, and reactors.
Clément Lausecker   +4 more
wiley   +1 more source

Hawking Radiation from non-evaporating primordial black holes cannot enable the formation of direct collapse black holes

open access: yesThe Open Journal of Astrophysics
The formation of supermassive black holes (SMBHs) in the early Universe is a subject of significant debate. In this study, we examine whether non-evaporating primordial black holes (PBHs) can offer a solution.
Jonathan Regan   +2 more
doaj   +1 more source

Tritrophic Interactions and Parasitoid Community Structure of Gall‐Inducing Herbivores in Arid Desert Ecosystems of Northern Xinjiang, China

open access: yesEcology and Evolution, Volume 16, Issue 10, October 2026.
This study systematically elucidates the complex tritrophic networks among the keystone shrub Lycium ruthenicum, three gall‐inducing pests, and 13 associated parasitoid species in the arid desert ecosystems of northern Xinjiang, China, reporting the globally novel stem gall‐inducing behavior of Scrobipalpa erichiodes.
Gaopeng Yu   +3 more
wiley   +1 more source

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