Results 31 to 40 of about 13,281,844 (310)

On the Instanton R-matrix

open access: yesCommunications in Mathematical Physics, 2016
53 pages, 1 ...
openaire   +2 more sources

Electron-molecule collisions at low and intermediate energies using the R-matrix method

open access: yes, 2005
We present the latest developments of the R-matrix method as applied to electron-molecule collisions. A variety of calculations for H2O are presented including the study of rotational excitation and preliminary data for dissociative electron attachment ...
Tennyson, J.   +15 more
core   +1 more source

SparseM: A Sparse Matrix Package for R *

open access: yesJournal of Statistical Software, 2003
SparseM provides some basic R functionality for linear algebra with sparse matrices. Use of the package is illustrated by a family of linear model fitting functions that implement least squares methods for problems with sparse design matrices ...
Roger Koenker, Pin Ng
doaj   +3 more sources

Extended R-matrix description of two-proton radioactivity

open access: yesPhysics Letters B, 2023
Two-proton (2p) radioactivity provides fundamental knowledge on the three-body decay mechanism and the residual nuclear interaction. In this work, we propose decay width formulae in the extended R-matrix framework for different decay mechanisms ...
Zhaozhan Zhang   +4 more
doaj   +1 more source

Matter-antimatter rearrangements using the R-matrix method

open access: yesFrontiers in Physics, 2023
Antihydrogen atoms, H―, are now routinely created and can be stored for long enough to allow comparison with ordinary matter. A major goal of these efforts is to test potential physics beyond the Standard Model.
Elliott Kasoar   +3 more
doaj   +1 more source

On the R-Matrix Realization of Yangians and their Representations [PDF]

open access: yesAnnales Henri Poincaré, 2006
65 ...
Arnaudon, D., Molev, A., Ragoucy, E.
openaire   +2 more sources

Synthesis of a novel analogue of DPP-4 inhibitor Alogliptin: Introduction of a spirocyclic moiety on the piperidine ring

open access: yesBeilstein Journal of Organic Chemistry, 2010
We report the synthesis of a novel analogue of Alogliptin via condensation of two key intermediates one of which is an aminopiperidine derivative bearing a spirocyclic ring on the piperidine moiety.
Arumugam Kodimuthali   +2 more
doaj   +1 more source

Manipulation of Convection Using Infrared Light Emitted from Human Hands

open access: yesAdvanced Science
Control of convection plays an important role in heat transfer regulation, bio/chemical sensing, phase separation, etc. Current convection controlling systems generally depend on engineered energy sources to drive and manipulate the convection, which ...
Hanrui Zhu   +14 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

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