Results 81 to 90 of about 117,377 (229)

Ambiguities in Assigning Single‐Crystal NMR Data to Individual Atoms in the Crystal Structure: A Case Study of Hambergite, Be2BO3OH, by 9Be and 11B NMR Spectroscopy, XRD Measurements and DFT Calculations

open access: yesMagnetic Resonance in Chemistry, Volume 64, Issue 4, Page 400-415, April 2026.
The fundamental question of how to assign NMR resonances to specific atoms in the unit cell is addressed by using the 9Be and 11B spectra of the natural mineral hambergite as a model system. ABSTRACT The NMR interaction tensors of 9Be and 11B of hambergite, Be 2BO 3OH, were derived from single‐crystal NMR experiments.
Jennifer Steinadler   +6 more
wiley   +1 more source

Package-X: A Mathematica package for the analytic calculation of one-loop integrals

open access: yes, 2015
Package-X, a Mathematica package for the analytic computation of one-loop integrals dimensionally regulated near 4 spacetime dimensions is described.
Patel, Hiren H.
core   +1 more source

Automatic calculation of symmetry‐adapted tensors under spin‐group symmetry: STENSOR, a new tool of the Bilbao Crystallographic Server

open access: yesJournal of Applied Crystallography, Volume 59, Issue 2, Page 640-647, April 2026.
STENSOR automatically computes symmetry‐adapted tensors under spin and magnetic point groups. It generates tensors for both spin and magnetic point groups from structural data files or spin‐group generators. The comparison permits separation of the effects due to spin–orbit coupling from non‐relativistic contributions, as illustrated by examples.We ...
Luis Elcoro   +3 more
wiley   +1 more source

Novel Behaviors to the Nonlinear Evolution Equation Describing the Dynamics of Ionic Currents along Microtubules

open access: yesITM Web of Conferences, 2017
In this work, we consider the Bernoulli sub-equation function method for obtaining novel behaviors to the nonlinear evolution equation describing the dynamics of ionic currents along Microtubules. We obtain new results by using this technique.
Baskonus Haci Mehmet   +3 more
doaj   +1 more source

Active Learning in Sophomore Mathematics: A Cautionary Tale [PDF]

open access: yes, 2000
Math 245: Multivariate Calculus, Linear Algebra, and Differential Equations with Computer I is the first half of a year-long sophomore sequence that emphasizes the subjects\u27 interconnections and grounding in real-world applications.
Eisenberg, M.
core   +1 more source

Solving the n $n$‐Player Tullock Contest

open access: yesJournal of Public Economic Theory, Volume 28, Issue 2, April 2026.
ABSTRACT The n $n$‐player Tullock contest with complete information is known to admit explicit solutions in special cases, such as (i) homogeneous valuations, (ii) constant returns, and (iii) two contestants. But can the model be solved more generally?
Christian Ewerhart
wiley   +1 more source

Ways of processing requests and characteristics of mobile access to Wolfram|Alpha [PDF]

open access: yes
This paper examines the ways of different types inquiries to Wolfram|Alpha, in particular, the possibility of natural language queries. The characteristic of mobile access to Wolfram|Alpha are highlighted. The data representation format was considered to
Бас, С. В., Словак, К. І.
core  

The methods for iterative computations efficiency improving in Wolfram Mathematica

open access: yes, 2020
In article considered and investigated methods for reducing computational resource costs of iterative algorithms in the mathematical processor Wolfram Mathematica that based on preliminary preparation of initial data, management of intermediate data in ...
D. Zolotariov
semanticscholar   +1 more source

Linking sap flow and tree water deficit in an unmanaged, mixed beech forest during the summer drought 2022

open access: yesPlant Biology, Volume 28, Issue 3, Page 747-761, April 2026.
Sap flow and reversible stem shrinkage upon water depletion are strongly correlated under extreme drought conditions, but they respond differently to drought and cannot be used interchangeably when assessing tree response to drought. Abstract Temperate mixed forests are currently experiencing severe drought conditions and face increased risk of ...
L. S. Donfack   +6 more
wiley   +1 more source

Numerical solution of a problem on bending oscillation of a rod

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2017
In article considered the problem of curved rod fluctuation with Jungs module. Shown the civility of the problem formulation. For solution used integro - interpolation method.
M. Bukenov   +3 more
doaj   +1 more source

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