Results 91 to 100 of about 58,714 (198)

The Study on Ecological Security Evaluation of the Minghu National Wetland Park

open access: yesDiscrete Dynamics in Nature and Society, Volume 2026, Issue 1, 2026.
Comprehensively analyzing Liupanshui Minghu National Wetland Park ecological safety impact factors including environment, resources, ecology, economy, and society, utilizing the Driver force‐Pressure‐State‐Impact‐Response‐Management (DPSIRM) framework model to build Minghu National Wetland Park ecological security DPSIRM evaluation index system and ...
Qu Qin, Bin Wen, Jingjing Li, Deepali
wiley   +1 more source

Business model - an ephemeral trend or a claim of the future? the orientation of enterprises within the agricultural machinery sector

open access: yesManagement, 2019
The fundamental objective of this research paper is to determine whether contemporary management is recognized traditionally, in the light of a strategy and the entailing methods of operation, adapted to the target recipients, based on knowledge and ...
Nogalski Bogdan   +1 more
doaj   +1 more source

Valence-Bond Crystal, and Lattice Distortions in a Pyrochlore Antiferromagnet with Orbital Degeneracy

open access: yes, 2005
We discuss the ground state properties of a spin 1/2 magnetic ion with threefold $t_{2g}$ orbital degeneracy on a highly frustrated pyrochlore lattice, like Ti$^{3+}$ ion in B-spinel MgTi$_2$O$_4$.
A. P. Ramirez   +10 more
core   +1 more source

Unemployment, poverty and economic growth in Nigeria

open access: yesJournal of Economics and Management, 2019
Aim/purpose – This study investigates the links between unemployment, poverty and economic growth in Nigeria between the periods, 1985-2015.
Adelowokan Oluwaseyi Adedayo   +3 more
doaj   +1 more source

Towards a Realistic Type IIA T^6/Z_4 Orientifold Model with Background Fluxes, Part 1: Moduli Stabilization

open access: yes, 2006
We apply the methods of DeWolfe et al. [hep-th/0505160] to a T^6/Z_4 orientifold model. This is the first step in an attempt to build a phenomenologically interesting meta-stable de Sitter model with small cosmological constant and standard model gauge ...
B. Acharya   +28 more
core   +1 more source

The employment issue: investment, flexibility and the competition of developing countries

open access: yesPSL Quarterly Review, 2013
The labor markets of developing countries are analysed, focusing on the importance of investment and flexibility.   JEL Codes: E24, J21
P. SYLOS LABINI
doaj   +1 more source

Color-Kinematics Duality for Pure Yang-Mills and Gravity at One and Two Loops

open access: yes, 2015
We provide evidence in favor of the conjectured duality between color and kinematics for the case of nonsupersymmetric pure Yang-Mills amplitudes by constructing a form of the one-loop four-point amplitude of this theory that makes the duality manifest ...
Bern, Zvi   +4 more
core   +1 more source

Fine group gradings of the real forms of $sl(4,\C)$, $sp(4,\C)$, and $o(4,\C)$

open access: yes, 2007
We present an explicit description of the 'fine group gradings' (i.e. group gradings which cannot be further refined) of the real forms of the semisimple Lie algebras $sl(4,\C)$, $sp(4,\C)$, and $o(4,\C)$. All together 12 real Lie algebras are considered,
Patera, Jiří   +2 more
core   +2 more sources

The cyclical behavior of equilibrium unemployment and vacancies revisited [PDF]

open access: yes
Recently, a number of authors have argued that the standard search model cannot generate the observed business-cycle-frequency fluctuations in unemployment and job vacancies, given shocks of a plausible magnitude.
Hagedorn, Marcus, Manovskii, Iourii
core  

Epicoccum layuense a potential biological control agent of esca-associated fungi in grapevine.

open access: yesPLoS ONE, 2019
Epicoccum is a genus of ascomycetes often associated with the mycobiome of grapevines (Vitis vinifera). Epicoccum spp. are found in the soil, phyllosphere, as well as in the wood, where they interact both with the plant and with other endophytes and ...
Giovanni Del Frari   +4 more
doaj   +1 more source

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