Results 21 to 30 of about 1,439,140 (304)

Melville and the Vortex Theory of Matter

open access: yesEuropean Journal of American Studies, 2023
The brief reference to the Cartesian vortex in Moby-Dick has already been discussed in numerous specialized articles, usually in terms of the history of ideas, e.g. in two articles by D. C. Leonard (1979; 1980).
Paweł Stachura
doaj   +1 more source

Magnetic Nature of Light Transmission through a 5-nm Gap

open access: yesScientific Reports, 2018
Slot antennas have been exploited as important building blocks of optical magnetism because their radiations are invoked by the magnetic fields along the axes, as vectorial Babinet principle predicts.
Hyosim Yang   +6 more
doaj   +1 more source

Reduction of background scattered light in vacuum systems for cold atoms experiments

open access: yesAIP Advances, 2020
Recent advances in the understanding and control of cold atom systems have resulted in devices with extraordinary metrological performance. To further improve the performance in these systems, additional methods of noise reduction are needed.
J. Vovrosh   +8 more
doaj   +1 more source

Superfluid flow above the critical velocity

open access: yesScientific Reports, 2017
Superfluidity and superconductivity have been widely studied since the last century in many different contexts ranging from nuclear matter to atomic quantum gases.
A. Paris-Mandoki   +5 more
doaj   +1 more source

Atomic, Molecular and Cluster Science with the Reaction Microscope Endstation at FLASH2

open access: yesApplied Sciences, 2020
The reaction microscope (REMI) endstation for atomic and molecular science at the free-electron laser FLASH2 at DESY in Hamburg is presented together with a brief overview of results recently obtained.
Severin Meister   +8 more
doaj   +1 more source

Removable Edges on a Hamilton Cycle or Outside a Cycle in a 4-Connected Graph

open access: yesDiscussiones Mathematicae Graph Theory, 2021
Let G be a 4-connected graph. We call an edge e of G removable if the following sequence of operations results in a 4-connected graph: delete e from G; if there are vertices with degree 3 in G− e, then for each (of the at most two) such vertex x, delete ...
Wu Jichang   +3 more
doaj   +1 more source

Operational Theory of Homodyne Detection

open access: yes, 1996
We discuss a balanced homodyne detection scheme with imperfect detectors in the framework of the operational approach to quantum measurement. We show that a realistic homodyne measurement is described by a family of operational observables that depends ...
B. L. Schumaker   +28 more
core   +1 more source

Lipid nanoparticles with aptamers enable targeted mRNA delivery to CD4⁺ T cells

open access: yesDrug Delivery
In vivo genetic engineering of T cells could overcome the logistical, biological, and safety challenges of ex vivo modification, but effective and safe delivery systems remain limited by a lack of cellular specificity.
Shrey Shah   +9 more
doaj   +1 more source

Atom-hybridization for synthesis of polymetallic clusters

open access: yesNature Communications, 2018
Multimetallic clusters are difficult to synthesize with control over elemental composition and organization. Here, the authors use dendrimers to precisely template the formation of five-element sub-nanoclusters, providing an elegant route to otherwise ...
Takamasa Tsukamoto   +4 more
doaj   +1 more source

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