Results 61 to 70 of about 1,088 (209)
Aggregate, Volume 7, Issue 4, April 2026.This review summarizes recent advances in integrated point‐of‐care testing (POCT) systems for public health, encompassing isothermal nucleic acid amplification, CRISPR‐based signal amplification, device integration, and chemometric/artificial intelligence‐assisted data interpretation, with applications in infectious disease surveillance, food and ...
Yan Du, Jiaqi Li, Jinghong Li
wiley +1 more source
The Nontriviality of Trivial General Covariance: How Electrons Restrict 'Time' Coordinates, Spinors (Almost) Fit into Tensor Calculus, and 7/16 of a Tetrad Is Surplus Structure [PDF]
, 2011 It is a commonplace in the philosophy of physics that any local physical theory can be represented using arbitrary coordinates, simply by using tensor calculus. On the other hand, the physics literature often claims that spinors \emph{as such} cannot be
Pitts, J. Brian, J. Brian Pitts
core
The Quantization and Renormalization of Gravitational Field
Applied Physics Research, 2016 <p class="1Body">This paper analyses the root cause why there is not any self-consistent quantization scheme of gravity yet from Einstein's theory of gravity, proves the gravitational field is a gauge field and gives the quantization and renormalization scheme of the gravitational field.</p>
openaire +2 more sources
Universal Entanglement and an Information‐Complete Quantum Theory
Advanced Physics Research, Volume 5, Issue 4, April 2026.This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley +1 more source
The companion equations and the moyal-nahm equations [PDF]
, 2000 The first part of this thesis is concerned with the companion equations. These are equations of motion for the companion Lagrangian which is proposed to be the Lagrangian for a field theory associated with strings and branes, similar to the Klein-Gordon ...
Baker, Linda Margaret
core
Otto Stern—An Involuntary Convert to Quantum Theory
Natural Sciences, Volume 6, Issue 2, April 2026.Otto Stern (1888–1969) at work in his Hamburg laboratory (circa 1930). ABSTRACT The bulk of experiments and observations that lined the path to quantum mechanics amounted to a backlog of data in need of explanation. A notable exception was the Stern–Gerlach experiment (SGE) designed to test the predictions of the old quantum theory as embodied by the ...
Bretislav Friedrich
wiley +1 more source
Mechanical Entropy and Its Implications
Entropy, 2001 : It is shown that the classical laws of thermodynamics require that mechanical systems must exhibit energy that becomes unavailable to do useful work. In thermodynamics, this type of energy is called entropy.
Pharis E. Williams
doaj +1 more source
The Representation of Time and Change in Mechanics [PDF]
, 2005 This paper is concerned with the representation of time and change in classical (i.e., non-quantum) physical theories. One of the main goals is to attempt to clarify the nature and scope of the so-called problem of time: a knot of technical and ...
Belot, Gordon
core
Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source