Results 11 to 20 of about 1,626,907 (253)
Thermal Decay of the Cosmological Constant into Black Holes
, 2003 We show that the cosmological constant may be reduced by thermal production of membranes by the cosmological horizon, analogous to a particle ``going over the top of the potential barrier", rather than tunneling through it. The membranes are endowed with
A. Aurilia +31 more
core +1 more source
An example of a uniformly accelerated particle detector with non-Unruh response [PDF]
, 2002 We propose a scalar background in Minkowski spacetime imparting constant proper acceleration to a classical particle. In contrast to the case of a constant electric field the proposed scalar potential does not create particle-antiparticle pairs ...
A.M. Fedotov +21 more
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Non-exponential one-body loss in a Bose-Einstein condensate
, 2012 We have studied the decay of a Bose-Einstein condensate of metastable helium atoms in an optical dipole trap. In the regime where two- and three-body losses can be neglected we show that the Bose-Einstein condensate and the thermal cloud show ...
J. S. Borbely +4 more
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Thermodynamical properties of dark energy [PDF]
, 2006 We have investigated the thermodynamical properties of dark energy. Assuming that the dark energy temperature $T\sim a^{-n}$ and considering that the volume of the Universe enveloped by the apparent horizon relates to the temperature, we have derived the
Anzhong Wang +4 more
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Reliability of fluctuation-induced transport in a Maxwell-demon-type engine [PDF]
, 2010 We study the transport properties of an overdamped Brownian particle which is simultaneously in contact with two thermal baths. The first bath is modeled by an additive thermal noise at temperature $T_A$.
A. M. Jayannavar +44 more
core +3 more sources
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
A Thermal Time-Constant Experiment [PDF]
, 2003 A simple experiment, well suited for an undergraduate course in mechatronics, is described in which thermal time-constant information is extracted from a heater-blower table-top system.
Brucker, Kyle +2 more
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Thermodynamics of de Sitter Black Holes: Thermal Cosmological Constant
, 2006 We study the thermodynamic properties associated with the black hole event horizon and the cosmological horizon for black hole solutions in asymptotically de Sitter spacetimes.
J. M. Maldacena +4 more
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Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Thermal conductivity and dielectric constant of silicate materials [PDF]
, 1968 Report on the thermal conductivity and dielectric constant of nonmetallic materials evaluates the mechanisms of heat transfer in evacuated silicate powders and establishes the complex dielectric constant of these materials.
Simon, I., Wechsler, A. E.
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