منابع مشابه
Hematopoietic stem cells do not engraft with absolute efficiencies.
Hematopoietic stem cells (HSCs) can be isolated from murine bone marrow by their ability to efflux the Hoechst 33342 dye. This method defines an extremely small and hematopoietically potent subset of cells known as the side population (SP). Recent studies suggest that transplanted single SP cells are capable of lymphohematopoietic repopulation at near absolute efficiencies. Here, we carefully r...
متن کاملAbsolute quantum energy inequalities
Quantum Energy Inequalities (QEIs) are results which limit the extent to which the smeared renormalised energy density of the quantum field can be negative, when averaged along a timelike curve or over a more general timelike submanifold in spacetime. On globally hyperbolic spacetimes the minimally-coupled massive quantum Klein–Gordon field is known to obey a ‘difference’ QEI that depends on a ...
متن کاملAbsolute Quantum Mechanics∗
Whereas one can conceive of a relational classical mechanics in which absolute space and time do not play a fundamental role, quantum mechanics does not readily admit any such relational formulation. Newtons mechanics is formulated against a backdrop of what he called absolute space and time. However, absolute position and velocity appear to be unobservable, and there is a long tradition, be...
متن کاملQuantum cloning for absolute radiometry.
In the quantum regime information can be copied with only a finite fidelity. This fidelity gradually increases to 1 as the system becomes classical. In this Letter we show how this fact can be used to directly measure the amount of radiated power. We demonstrate how these principles can be used to build a practical primary standard.
متن کاملQuantum Equilibrium and Theorigin of Absolute
The quantum formalism is a \measurement" formalism|a phenomenological formalism describing certain macroscopic regularities. We argue that it can be regarded, and best be understood, as arising from Bohmian mechanics, which is what emerges from Schrr odinger's equation for a system of particles when we merely insist that \particles" means particles. While distinctly non-Newtonian, Bohmian mecha...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry
سال: 1972
ISSN: 0022-4332
DOI: 10.6028/jres.076a.050