Results 81 to 90 of about 678,119 (336)

The detection of sub-solar mass dark matter halos

, 2009
Dark matter halos of sub-solar mass are the first bound objects to form in cold dark matter theories. In this article, I discuss the present understanding of "microhalos'', their role in structure formation, and the implications of their potential ...
, Bertschinger E, Bode P, Bringmann T, Bringmann T, Bryan G L, Colin P, Diemand J, Diemand J, Eke V R, Elahi P J Thacker R J Widrow L M Scannapieco E, Green A M, Heitmann K, Hofmann W (HESS Collaboration), Hooper D Stebbins A Zurek K M, Klypin A, Komatsu E, Kuhlen M Diemand J Madau P, March-Russell J D West S M, Martinez G D Bullock J S Kaplinghat M Strigari L E Trotta R, Martinez M (MAGIC Collaboration), Moore B, Ritz S, Savvas M Koushiappas, Springel V, Sreekumar P, Vogelsberger M, White S D M, Yoshida N, Zemp M, Zhao H S   +30 more
core   +1 more source

Functional Hydrogel for Modulating Lipid Droplets and Neuroinflammation in Head Injury

Advanced Functional Materials, EarlyView.
After TBI, elevated cholesterol levels in activated microglia lead to the accumulation of cholesterol esters in lipid droplets, exacerbating neuroinflammation. A β‐cyclodextrin‐conjugated GelMA (βCD‐GelMA) hydrogel is developed to promotes cholesterol efflux and reduces LDL influx, thereby alleviating intracellular cholesterol and lipid droplet buildup.
Feixiang Chen, Yvonne Shen, Yutong Shao, Tenghuan Ge, Haowen Qiao, Shangzhou Xia, Yafei Qu, Yuanpu Chiu, Ying Qin, Zhen Zhao   +9 more
wiley   +1 more source

The Stellar Distribution in Ultrafaint Dwarf Galaxies Suggests Deviations from the Collisionless Cold Dark Matter Paradigm

The Astrophysical Journal Letters
Unraveling the nature of dark matter (DM) stands as a primary objective in modern physics. Here we present evidence suggesting deviations from the collisionless cold DM (CDM) paradigm.
Jorge Sánchez Almeida, Ignacio Trujillo, Angel R. Plastino   +2 more
doaj   +1 more source

LOCKED QUINTESSENCE AND COLD DARK MATTER [PDF]

The Identification of Dark Matter, 2005
A supersymmetric hybrid potential model with low energy supersymmetry breaking scale ($ M_{S}\sim 1-10 Tev$) is presented for both dark matter and dark energy. Cold dark matter is associated with a light modulus field ($\sim 10-100 Mev$) undergoing coherent oscillations around a saddle point false vacuum with the presently observed energy density ($ _{
openaire   +2 more sources

FeDSNP‐Pa Nanoassemblies: A Triple‐Action Therapeutic Strategy Targeting Oxidative Stress, Inflammation, and Pyroptosis for Retinal Ganglion Cell Protection in Glaucoma

Advanced Functional Materials, EarlyView.
FeDSNP‐Pa, a metallized nanoparticle loaded with sodium pyruvate (Pa), exerts triple therapeutic effects by scavenging reactive oxygen species (ROS), suppressing inflammatory responses, and inhibiting pyroptosis signaling pathways. This multifunctional neuroprotective strategy protecting retinal ganglion cells (RGCs) from elevated intraocular pressure ...
Yukun Wu, Xue Li, Tong Wu, Dan Ji, Yugang Bai, Xuezhi Zhou   +5 more
wiley   +1 more source

How Many Bursts Does It Take to Form a Core at the Center of a Galaxy?

The Astrophysical Journal
We present a novel method for systematically assessing the impact of the central potential fluctuations associated with bursty outflows on the structures of dark matter halos for classical and ultrafaint dwarf (UFD) galaxies.
Olivia Mostow, Paul Torrey, Jonah C. Rose, Alex M. Garcia, Niusha Ahvazi, Mariangela Lisanti, Nitya Kallivayalil   +6 more
doaj   +1 more source

Gravitational ringing and superradiant instabilities of the Kerr-like black holes in a dark matter halo

European Physical Journal C: Particles and Fields, 2023
Supermassive black holes from the center of galaxy may be immersed in a dark matter halo. This dark matter halo may form a “cusp” structure around the black hole and disappear at a certain distance from the black hole.
Dong Liu, Yi Yang, Ali Övgün, Zheng-Wen Long, Zhaoyi Xu   +4 more
doaj   +1 more source

Cold dark matter with MOND scaling

Physics Letters B, 2010
We provide a holographic dual description of Milgrom's scaling associated with galactic rotation curves. Our argument is based on the recent entropic reinterpretation of Newton's laws of motion. We propose a duality between cold dark matter and modified Newtonian dynamics (MOND).
Ho, Chiu Man, Minic, Djordje, Ng, Y. Jack   +2 more
openaire   +2 more sources

Synergistic Osteogenesis After Co‐Administration of cmRNAs Encoding BMP‐2 and BMP‐7 Utilizing a Transcript‐Activated Matrix

Advanced Functional Materials, EarlyView.
This study demonstrates that the dual delivery of BMP‐2/‐7 coding cmRNAs for bone healing is demonstrated as feasible, safe, and highly osteogenic. Compared to single BMP‐2 or BMP‐7 cmRNAs, the combination enhances the production of both mineral and organic components of the extracellular matrix when delivered using a collagen‐HA scaffold, supporting ...
Claudia Del Toro Runzer, Joanna M. Sadowska, Nadia Roumans, Christian Plank, Christopher H. Evans, Fergal J. O'Brien, Martijn van Griensven, Elizabeth R. Balmayor   +7 more
wiley   +1 more source

νΛMDM: A model for sterile neutrino and dark matter reconciles cosmological and neutrino oscillation data after BICEP2

Physics Letters B, 2014
We propose an ultraviolet complete theory for cold dark matter (CDM) and sterile neutrinos that can accommodate both cosmological data and neutrino oscillation experiments within 1σ level.
P. Ko, Yong Tang
doaj   +1 more source