Results 21 to 30 of about 1,363 (246)

Theory of Gravity Dependent on Entropy

open access: yesReports in Advances of Physical Sciences, 2023
Gravitational redshift decreases the resolution of measurements, causing entropy by increasing the possible microstates of position and momentum for objects within a gravitational field.
Christopher N. Watson
doaj   +1 more source

Recent Experimental Tests of Special Relativity [PDF]

open access: yes, 2006
We review our recent Michelson-Morley (MM) and Kennedy-Thorndike (KT) experiment, which tests Lorentz invariance in the photon sector, and report first results of our ongoing atomic clock test of Lorentz invariance in the matter sector. The MM-KT experiment compares a cryogenic microwave resonator to a hydrogen maser, and has set the most stringent ...
Wolf, Peter   +6 more
openaire   +3 more sources

Relativity, anomalies and objectivity loophole in recent tests of local realism

open access: yesOpen Physics, 2017
Local realism is in conflict with special quantum Bell-type models. Recently, several experiments have demonstrated violation of local realism if we trust their setup assuming special relativity valid.
Bednorz Adam
doaj   +1 more source

Problematic aspects of 20-th century antiparticles and their apparent resolution via isodual mathematics

open access: yesRatio Mathematica
In this paper, we recall Dirac’s negative energy antiparticles, their compati- bility with particle-antiparticle annihilation into light and their lack of com- patibility with special relativity as well as causality laws.
S. Beghella-Bartoli   +2 more
doaj   +3 more sources

Relativity concept inventory: Development, analysis, and results

open access: yesPhysical Review Special Topics. Physics Education Research, 2013
We report on a concept inventory for special relativity: the development process, data analysis methods, and results from an introductory relativity class. The Relativity Concept Inventory tests understanding of relativistic concepts.
J. S. Aslanides, C. M. Savage
doaj   +1 more source

The light speed versus the observer: the Kennedy–Thorndike test from GRAAL-ESRF

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
High precision tests of the light speed constancy for all observers as a empirical basis of Special Relativity have continuously been among the goals of advanced experimental studies.
V. G. Gurzadyan, A. T. Margaryan
doaj   +1 more source

LARES: A New Satellite Specifically Designed for Testing General Relativity

open access: yesInternational Journal of Aerospace Engineering, 2015
It is estimated that today several hundred operational satellites are orbiting Earth while many more either have already reentered the atmosphere or are no longer operational.
Antonio Paolozzi   +3 more
doaj   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

open access: yesPopulation Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier   +6 more
wiley   +1 more source

Leveraging current insights on IL‐10‐producing dendritic cells for developing effective immunotherapeutic approaches

open access: yesFEBS Letters, EarlyView.
In vivo IL‐10 produced by tissue‐resident tolDC is involved in maintaining/inducing tolerance. Depending on the agent used for ex vivo tolDC generation, cells acquire common features but prime T cells towards anergy, FOXP3+ Tregs, or Tr1 cells according to the levels of IL‐10 produced. Ex vivo‐induced tolDC were administered to patients to re‐establish/
Konstantina Morali   +3 more
wiley   +1 more source

FoxO1 signaling in B cell malignancies and its therapeutic targeting

open access: yesFEBS Letters, EarlyView.
FoxO1 has context‐specific tumor suppressor or oncogenic character in myeloid and B cell malignancies. This includes tumor‐promoting properties such as stemness maintenance and DNA damage tolerance in acute leukemias, or regulation of cell proliferation and survival, or migration in mature B cell malignancies.
Krystof Hlavac   +3 more
wiley   +1 more source

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