Results 21 to 30 of about 72,320 (210)

Optimal Non-uniform Deployments in Ultra-Dense Finite-Area Cellular Networks [PDF]

open access: yes, 2017
Network densification and heterogenisation through the deployment of small cellular access points (picocells and femtocells) are seen as key mechanisms in handling the exponential increase in cellular data traffic.
Dettmann, Carl P.   +2 more
core   +2 more sources

Footnotes to organizational competitiveness

open access: yesEconomics and Business Review, 2019
The aim of this paper is to enhance our understanding of evolution of the concept of competitiveness: how it developed and changed over time. The intention is to review three theoretical and practical reasons that explains why it remains such an ...
Obloj Krzysztof
doaj   +1 more source

Selected prebiotics and synbiotics administered in ovo can modify innate immunity in chicken broilers

open access: yesBMC Veterinary Research, 2019
Background A previous study showed that prebiotics and synbiotics administered in ovo into the egg air cell on the 12th day of incubation enhance the growth and development of chickens.
Tadeusz Stefaniak   +7 more
doaj   +1 more source

Promoting enterprise productivity: The role of digital transformation

open access: yesBorsa Istanbul Review, 2022
This study employs textual analysis to assess enterprise digitalization. Moreover, it explores the effect of firm digital transformation (DT) on productivity using data from listed enterprises in China from 2007 to 2020. Our empirical findings point to a
Xinyi Du, Kangqi Jiang
doaj   +1 more source

Lie symmetries of the Shigesada-Kawasaki-Teramoto system [PDF]

open access: yes, 2016
The Shigesada-Kawasaki-Teramoto system, which consists of two reaction-diffusion equations with variable cross-diffusion and quadratic nonlinearities, is considered.
Cherniha, Roman   +2 more
core   +2 more sources

Effects of Allocative Inefficiency on Input Substitution in Iran\'s Manufacturing Sector [PDF]

open access: yesپژوهشهای اقتصادی, 2010
According to the neoclassical approach, input prices as a measure of resources scarcity induce firms to cost-minimizing and efficient allocation of recourses.
Hossein Sadeghi   +1 more
doaj  

¿A dónde exportan las firmas, por qué eligen ese mercado, quiénes venden más y cuántas comercian? Un análisis con firmas manufactureras localizadas en México

open access: yesEl Trimestre Económico, 2018
Antecedentes: Son escasas las investigaciones que examinan los patrones de comercio que exhiben los países alrededor del mundo, y lo son aún más para países en desarrollo.
Carlos Enrique Cardoso Vargas
doaj   +1 more source

2s Hyperfine Structure in Hydrogen Atom and Helium-3 Ion [PDF]

open access: yes, 2001
The usefulness of study of hyperfine splitting in the hydrogen atom is limited on a level of 10 ppm by our knowledge of the proton structure. One way to go beyond 10 ppm is to study a specific difference of the hyperfine structure intervals 8 Delta nu_2 -
D. J. Wineland   +17 more
core   +3 more sources

Cytoplasmic and Nuclear Localizations Are Important for the Hypersensitive Response Conferred by Maize Autoactive Rp1-D21 Protein

open access: yesMolecular Plant-Microbe Interactions, 2015
Disease resistance (R) genes have been isolated from many plant species. Most encode nucleotide binding leucine-rich repeat (NLR) proteins that trigger a rapid localized programmed cell death called the hypersensitive response (HR) upon pathogen ...
Guan-Feng Wang, Peter J. Balint-Kurti
doaj   +1 more source

D21-Digital-Index 2021/2022

open access: yesmerz | medien + erziehung, 2022
Der Gesellschaft fällt es nicht leicht, die Auswirkungen der Digitalisierung auf die ökologische Nachhaltigkeit und die zugrundeliegenden Wirkzusammenhänge einzuschätzen. So ein Ergebnis des D21-Digital-Index 2021/2022. Neben der Untersuchung des Digitalisierungsgrads der Bevölkerung erfasst die Studie in diesem Jahr auch systematisch die Perspektive ...
openaire   +1 more source

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