Results 51 to 60 of about 450,998 (287)

Kerr black holes as elementary particles

Journal of High Energy Physics, 2020
Long ago, Newman and Janis showed that a complex deformation z → z + ia of the Schwarzschild solution produces the Kerr solution. The underlying explanation for this relationship has remained obscure.
Nima Arkani-Hamed, Yu-tin Huang, Donal O’Connell   +2 more
doaj   +1 more source

Bit from Qubit. A Hypothesis on Wave-Particle Dualism and Fundamental Interactions

Information, 2020
In this article a completely objective decoherence mechanism is hypothesized, operating at the level of the elementary particles of matter. The standard quantum mechanical description is complemented with a phenomenological evolution equation, involving ...
Leonardo Chiatti
doaj   +1 more source

Bioengineering facets of the tumor microenvironment in 3D tumor models: insights into cellular, biophysical and biochemical interactions

FEBS Open Bio, EarlyView.
The tumor microenvironment is a dynamic, multifaceted complex system of interdependent cellular, biochemical, and biophysical components. Three‐dimensional in vitro models of the tumor microenvironment enable a better understanding of these interactions and their impact on cancer progression and therapeutic resistance.
Salma T. Rafik, Deniz Bakkalci, Alexander J. MacRobert, Umber Cheema   +3 more
wiley   +1 more source

Massive Elementary Particles and Black Holes

, 2003
An outstanding problem posed by Einstein's general theory of relativity to the quantum theory of point particle fields is the fate of a massive point particle; for, in the classical solutions of Einstein's theory, such a system should be a black hole. We
, , , , 't Hooft G, 't Hooft G, Abbaneo D, Adler R, B F L Ward, Bajc B, Bardin D, Bonnanno A, Donoghue J, Donoghue J, Faddeev L D, Feynman R P, Feynman R P, Goldberger M L, Green M, Hagiwara K, Hawking S, Hawking S, Kolb E W, Lauscher O, Melnikov V N, Misner C, Polchinski J, Salam A, Schwarz J, Smolin L, Ward B F L, Ward B F L, Ward B F L, Ward B F L, Ward B F L, Wark D, Weinberg S, Weinberg S, Weinberg S, Yennie D R   +39 more
core   +3 more sources

A Eterna Busca do Indivisível: do Átomo Filosófico aos Quarks e Léptons The eternal search for the indivisible: from philosophical atom to quarks and leptons

Química Nova, 1997
The fascinating search of the inner boundaries of the Universe, has been entangled, since the birth of greek philosophy 25 centuries ago, with the main epistemological changes in the History of Science.
Francisco Caruso, Vitor Oguri
doaj   +1 more source

Plasma-like Description for Elementary and Composite Quantum Particles

Entropy, 2022
Schrödinger noticed in 1952 that a scalar complex wave function can be made real by a gauge transformation. The author showed recently that one real function is also enough to describe matter in the Dirac equation in an arbitrary electromagnetic or Yang ...
Andrey Akhmeteli
doaj   +1 more source

The Concept of Mass in the Einstein Year [PDF]

, 2006
Various facets of the concept of mass are discussed. The masses of elementary particles and the search for higgs. The masses of hadrons. The pedagogical virus of relativistic mass.
arxiv   +1 more source

Iron‐dependent lysosomal LDL oxidation induces the expression of scavenger receptor A in human THP‐1 monocytes

FEBS Open Bio, EarlyView.
In human monocytic cells THP‐1, a limited uptake of native—not oxidized—LDL/VLDL induced expression of scavenger receptor A and cellular adhesion. Induction was inhibited by lysosomotropic (WR‐1065) and lipophilic (BHT) antioxidants and by siRNAs against ferritinophagy.
Martina Čierna, Richard Buchal, Martin Leníček, Amit Shachak, Jan Pláteník   +4 more
wiley   +1 more source

An approach for coherent periodogram averaging of tilt‐series data for improved contrast transfer function estimation

FEBS Open Bio, EarlyView.
The contrast transfer function (CTF) is an imaging aberration that is a major resolution‐limiting factor in cryo‐electron microscopy (cryo‐EM). Precise CTF estimation is key to overcoming this limitation, but is particularly challenging in cryo‐electron tomography (cryo‐ET) data. Here, we present an approach for using geometric information to assist in
Sagar Khavnekar, William Wan
wiley   +1 more source

A simple explanation of the non-appearance of physical gluons and quarks

, 2002
We show that the non-appearance of gluons and quarks as physical particles is a rigorous and automatic result of the full, i.e. nonperturbative, nonabelian nature of the color interaction in quantum chromodynamics.
Bander M., Bjorken J.D., Davies C.W., Feynman R.P., J Hansson, Nash C.   +5 more
core   +1 more source