Results 101 to 110 of about 3,103 (294)

Interacting scalar fields: Dark matter and early dark energy

Physical Review D
The main aim of this work is to explore the possibility that cold dark matter (CDM) and early dark energy (EDE) can be described by canonical scalar fields that are coupled at the level of its conservation equations. The formalism covers dynamical aspects at the background and linear perturbation levels for an arbitrary coupling function, followed by ...
Gabriela Garcia-Arroyo, L. Arturo Ureña-López, J. Alberto Vázquez   +2 more
openaire   +2 more sources

Nonrelativistic approach for cosmological scalar field dark matter [PDF]

Physical Review D, 2014
RevTex file, 5 pages, no figures.
openaire   +3 more sources

Direct Natural and Artificial Aging of Aluminum Alloy AlSi10Mg After Laser Powder‐Bed Fusion

Advanced Engineering Materials, EarlyView.
Laser powder‐bed fusion of metals aluminum alloy AlSi10Mg has been directly aged. Artificial aging after natural aging is considered. The hardening potential is high for the top part of the samples as well as after short natural aging. The hardening potential is substantially reduced for the bottom part of the samples, as well as after natural aging of
Rabea Steuer, Benjamin Milkereit, Sigurd Wenner, Jette Broer, Florian Huber, Mirko Schaper, Olaf Kessler   +6 more
wiley   +1 more source

Structurally Colored Physically Unclonable Functions with Ultra‐Rich and Stable Encoding Capacity

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
This study reports a design strategy for generating bright‐field resolvable physically unclonable functions with extremely rich encoding capacity coupled with outstanding thermal and chemical stability. The optical response emerges from thickness‐dependent structural color formation in ZnO features, which are fabricated by physical vapor deposition ...
Abidin Esidir, Miaoning Ren, Sami Pekdemir, Mustafa Kalay, Nilgun Kayaci, Nail Gunaltay, Hakan Usta, Xian Huang, Mustafa Serdar Onses   +8 more
wiley   +1 more source

Dark Matter from self-dual gauge/Higgs dynamics

Journal of High Energy Physics, 2019
We show that a new gauge group with one new scalar leads to automatically stable Dark Matter candidates. We consider theories where the Higgs phase is dual to the confined phase: it is known that SU (2) gauge theories with a scalar doublet (like the ...
Dario Buttazzo, Luca Di Luzio, Giacomo Landini, Alessandro Strumia, Daniele Teresi   +4 more
doaj   +1 more source

Mesenchymal Stem Cells‐Derived Extracellular Vesicles Mimetics as Osteoinductive Mediators for Bone Healing

Advanced Functional Materials, EarlyView.
Mesenchymal stem cell‐derived nanoghosts (MSC‐NGs) mimic naturally secreted extracellular vesicles (MSC‐EVs) in structure and physicochemical properties but can be synthesized at more translatable yields. As osteogenic agents, MSC‐NGs demonstrate superior outcomes compared to MSC‐EVs.
Antoine Karoichan, Ling Li, Celine J. Agnes, Bettina M. Willie, Maryam Tabrizian   +4 more
wiley   +1 more source

Hidden sector and gravity

Physics Letters B, 2020
In this paper, we consider a generic hidden sector which interacts only gravitationally with Standard Model particles. We show that quantum gravity leads to operators which can be probed with fifth force type experiments.
Xavier Calmet
doaj  

Self‐Cascade Catalytic Reaction–Assisted Apoptosis/Calcicoptosis/Ferroptosis Induction with Microsphere‐Aggregated Hydrogels in Triple‐Negative Breast Cancer Therapy

Advanced Functional Materials, EarlyView.
Hyaluronic acid‐dopamine‐based intra‐crosslinked microsphere including cisplatin (HPC MS) is fabricated by spray‐drying and calcium/iron ions are introduced for interparticle crosslinking. Designed microsphere‐aggregated hydrogel (MAH) system including cisplatin/CaO2/FeSO4 can provide apoptosis/calcicoptosis/ferroptosis‐mediated chemo/cascade ...
ChaeRim Hwang, Yeoung Eun Choi, Song Yi Lee, Mrinmoy Karmakar, Qiaojun Hao, Junmin Lee, Hyun‐Jong Cho   +6 more
wiley   +1 more source

Ultraviolet running constraints on low mass dark sectors

Journal of High Energy Physics
We analyze the UV breakdown of Sub-GeV dark matter models that live in a new, dark U(1) sector. Many of these models include a scalar field, which is either the dark matter itself or a dark Higgs field that generates mass terms for the dark matter ...
Aidan Reilly, Natalia Toro
doaj   +1 more source

Scalar Fields in Cosmology: Inflation, Dark Matter, Dark Energy

, 2018
During the 12 years of project C6 of the SFB 676 it has achieved a set of significant contributions to our understanding of the dynamics of scalar fields in early universe cosmology and its connection to string theory. In this contribution we describe our results at this interface between theoretical cosmology and fundamental high-energy theory in ...
Louis, Jan, Westphal, Alexander
openaire   +2 more sources