Results 51 to 60 of about 8,183 (128)

An Exponentially Fitted Upwind Scheme for Singularly Perturbed Differential Equations With Mixed Shift Parameters

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
This paper provides numerical solutions to a class of singularly perturbed differential–difference equations characterized by mixed shift parameters. The solutions of such problems exhibit sharp boundary layers near the endpoints of the spatial domain due to the presence of a small perturbation parameter ε(0 < ε ≪ 1).
Amare Worku Demsie   +3 more
wiley   +1 more source

Role of spin-orbit coupling and evolution of the electronic structure of WTe$_2$ under an external magnetic field

open access: yes, 2015
Here, we present a detailed study on the temperature and angular dependence of the Shubnikov-de-Haas (SdH) effect in the semi-metal WTe$_2$. This compound was recently shown to display a very large non-saturating magnetoresistance which was attributed to
Balicas, L.   +7 more
core   +1 more source

On the limitations of data‐based price discrimination

open access: yesTheoretical Economics, Volume 20, Issue 1, Page 303-351, January 2025.
The classic third degree price discrimination (3PD) model requires the knowledge of the distribution of buyer valuations and the covariate to set the price conditioned on the covariate. In terms of generating revenue, the classic result shows that 3PD is at least as good as uniform pricing.
Haitian Xie, Ying Zhu, Denis Shishkin
wiley   +1 more source

The evolution of larvae in temnospondyls and the stepwise origin of amphibian metamorphosis

open access: yesBiological Reviews, Volume 99, Issue 5, Page 1613-1637, October 2024.
ABSTRACT The question of what the ancient life cycle of tetrapods was like forms a key component in understanding the origin of land vertebrates. The existence of distinct larval forms, as exemplified by many lissamphibians, and their transformation into adults is an important aspect in this field.
Rainer R. Schoch, Florian Witzmann
wiley   +1 more source

Bufonia darvishii (Caryophyllaceae), a novel endemic species from Zagros Mountains, Iran

open access: yesNordic Journal of Botany, Volume 2024, Issue 10, October 2024.
A new subalpine species of Bufonia sect. Longipedicellata from the Zagros Mountains in west Iran is described and illustrated here. It colonizes mountain slopes with gravelly, stony, and scree substrates in one locality of Chaharmahal and Bakhtiari province, preferably with a western and north‐west orientation, at elevations between 2700 and 3100 m a.s.
Amin Zeraatkar
wiley   +1 more source

A new plant genus and species from south‐eastern Spain: Castrila latens (Rubieae, Rubiaceae)

open access: yesTAXON, Volume 73, Issue 4, Page 1001-1015, August 2024.
Abstract A new genus and species, Castrila latens, native to the south‐eastern Iberian Peninsula, is described here for the first time and compared with its closest relatives. The plant is characterized by being annual, glabrous, having reduplicate leaves in whorls of (5)6–7, inflorescences capitate and involucrate, corolla shortly hypocrateriform and ...
Gabriel Blanca   +6 more
wiley   +1 more source

Electronic structure of Pu and Am metals by self consistent relativistic GW

open access: yes, 2011
We present the results of calculations for Pu and Am performed using an implementation of self-consistent relativistic GW method. The key feature of our scheme is to evaluate polarizability and self-energy in real space and Matsubara's time.
Haule, K.   +3 more
core   +1 more source

Probing the Galactic Neutrino Flux at Neutrino Energies above 200 TeV with the Baikal Gigaton Volume Detector

open access: yesThe Astrophysical Journal
Recent observations of the Galactic component of the high-energy neutrino flux, together with the detection of the diffuse Galactic gamma-ray emission up to sub-PeV energies, open new possibilities to study the acceleration and propagation of cosmic rays
V. A. Allakhverdyan   +70 more
doaj   +1 more source

EXPRESSION PROFILE OF MICRORNAS IN SQUAMOUS CELL HEAD AND NECK CARCINOMA

open access: yesСибирский онкологический журнал, 2016
Head and neck squamous cell carcinoma (HNSCC) is a highly aggressive disease with long asymptomatic course. New molecular prognostic markers are urgently needed to identify patients at high risk for developing lymph node metastasis.
Yu. A. Veryaskina   +9 more
doaj  

The band gap problem: the accuracy of the Wien2k code confronted [PDF]

open access: yes, 2013
This paper is a continuation of our detailed study [Phys. Rev. B 86, 195106 (2012)] of the performance of the recently proposed modified Becke-Jonhson potential (mBJLDA) within the known Wien2k code.
Baquero, R., Camargo-Martínez, J. A.
core  

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