Results 101 to 110 of about 39,178 (247)

Genetic parameters, association of traits and selection of durum wheat genotypes (Triticum turgidum L. var. durum) advanced lines at Injibara, Northwestern Ethiopia

open access: yesAgrosystems, Geosciences &Environment, Volume 8, Issue 2, June 2025.
Abstract Durum wheat production and grain quality in Ethiopia are below the global average, primarily due to the limited availability of high‐yielding and industrial‐quality varieties. Assessing genetic variability is essential for breeding high‐yielding cultivars. This study evaluated 45 advanced durum wheat lines (Triticum turgidum L. var.
Birkneh Kuru   +2 more
wiley   +1 more source

Validity of Weak-Form Market Efficiency in Central and Eastern European Countries (CEECs): Evidence from Linear and Nonlinear Unit Root Tests

open access: yesReview of Economic Perspectives, 2019
This paper aims to focus weekly stock market prices from the CEECs (Lithuania, Hungary, Romania, Croatia, Slovenia, Poland, Bulgaria, the Slovak Republic, Latvia, Estonia, and the Czech Republic) markets for evidence of weak-form market efficiency.
Erdas Mehmet Levent
doaj   +1 more source

Chiral Amplification and Regulation: Design and Applications of Circularly Polarized Luminescence‐Active Materials Derived From Macrocyclic Compounds

open access: yesAggregate, Volume 6, Issue 6, June 2025.
The graphical abstract highlights the key concepts of this review, including chiral transfer and amplification mechanisms, macrocyclic compounds, circularly polarized luminescence (CPL) applications, chiral sensing, asymmetric catalysis, and stimuli‐responsive applications.
Wei Zhang, Mao‐Qin Liu, Yang Luo
wiley   +1 more source

Return Dynamics and Volatility Spillovers Between FOREX and Stock Markets in MENA Countries: What to Remember for Portfolio Choice?

open access: yesInternational Journal of Management and Economics, 2015
This article investigates the interdependence of stock-forex markets in MENA (Middle East and North Africa) countries for the February 26, 1999 to June 30, 2014 period.
Arfaoui Mongi, Ben Rejeb Aymen
doaj   +1 more source

Nonperturbative Approach to Circuit Quantum Electrodynamics

open access: yes, 2012
We outline a rigorous method which can be used to solve the many-body Schroedinger equation for a Coulomb interacting electronic system in an external classical magnetic field as well as a quantized electromagnetic field.
A. Fetter   +6 more
core   +1 more source

Regional Limitations of Stock Indices Prediction Models Based on Macroeconomic Variables

open access: yesEconomics and Culture, 2019
Research purpose. Stocks as well as other securities are a crucial part of the financial market that helps to redistribute financial resources amongst market participants, which in a modern economy include not only professional stock players but also ...
Kvainickas Tomas Sovijus   +1 more
doaj   +1 more source

An Analysis of the Decay $B \rightarrow D^* X \ell \bar\nu_\ell$ with Predictions from Heavy Quark and Chiral Symmetry

open access: yes, 1992
This paper considers the implications of the heavy quark and chiral symmetries for the semi-leptonic decay $B \rightarrow D^* X \ell \bar \nu_\ell$. The general kinematic analysis for decays of the form {\sl pseudoscalar meson $\rightarrow$ vector meson $
A. Pais   +10 more
core   +1 more source

Group extensions with special properties [PDF]

open access: yes, 2014
Given a group G and a G-module A, we show how to determine up to isomorphism the extensions E of A by G so that A embeds as smallest non-trivial term of the derived series or of the lower central series into E.Comment: 13 pages, 2 ...
Distler, Andreas, Eick, Bettina
core  

Note on a NAHE Variation

open access: yes, 2011
We present a variation of the NAHE-basis for free fermionic heterotic string models. By rotating some of the boundary conditions of the NAHE periodic/anti-periodic fermions {y^m, \bar{y}^m, w^m, \bar{w}^m,}, for m = 1 to 6, associated with the six ...
Ali, Tibra   +5 more
core   +1 more source

Symmetry, singularities and integrability in complex dynamics III: approximate symmetries and invariants

open access: yes, 2000
The different natures of approximate symmetries and their corresponding first integrals/invariants are delineated in the contexts of both Lie symmetries of ordinary differential equations and Noether symmetries of the Action Integral.
Baikov V A   +17 more
core   +1 more source

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