Results 31 to 40 of about 150,952 (257)

Persistent and Transient Efficiency of International Airlines

open access: yesEuropean Journal of Transport and Infrastructure Research, 2018
This paper examines the efficiency of international airlines for the period 1998-2012 using some competing stochastic frontier (SF) panel data models.
Almas Heshmati   +2 more
doaj   +1 more source

The advantage of being slow: the quasi-neutral contact process [PDF]

open access: yes, 2017
According to the competitive exclusion principle, in a finite ecosystem, extinction occurs naturally when two or more species compete for the same resources.
de Oliveira, Marcelo Martins   +1 more
core   +3 more sources

Notch2 blockade enhances hematopoietic stem cell mobilization and homing

open access: yesHaematologica, 2017
Despite use of newer approaches, some patients being considered for autologous hematopoietic cell transplantation (HCT) may only mobilize limited numbers of hematopoietic progenitor cells (HPCs) into blood, precluding use of the procedure, or being ...
Weihuan Wang   +12 more
doaj   +1 more source

Dynamics and bifurcations in a simple quasispecies model of tumorigenesis [PDF]

open access: yes, 2014
Cancer is a complex disease and thus is complicated to model. However, simple models that describe the main processes involved in tumoral dynamics, e.g., competition and mutation, can give us clues about cancer behaviour, at least qualitatively, also ...
Castillo, V.   +2 more
core   +3 more sources

Simulation as a method for asymptotic system behavior identification (e.g. water frog hemiclonal population systems) [PDF]

open access: yes, 2020
Studying any system requires development of ways to describe the variety of its conditions. Such development includes three steps. The first one is to identify groups of similar systems (associative typology).
Biriuk, Olga   +9 more
core   +1 more source

A new perspective on the competitiveness of nations [PDF]

open access: yes, 2008
The capability of firms to survive and to have a competitive advantage in global markets depends on, amongst other things, the efficiency of public institutions, the excellence of educational, health and communications infrastructures, as well as on the ...
Artto   +34 more
core   +2 more sources

Colloidal Plasmonic Nanoparticles for Ultrafast Optical Switching and Laser Pulse Generation

open access: yesFrontiers in Materials, 2018
Light-matter interactions are greatly enhanced and spatially well-confined in plasmonic nanostructures in the spectral resonance range. In colloidal plasmonic nanoparticle (NP), this effect is manifested by the strong absorption caused by the collective ...
Xiaofeng Liu
doaj   +1 more source

Interpreting physical performance in professional soccer match-play: Should we be more pragmatic in our approach? [PDF]

open access: yes, 2013
Academic and practitioner interest in the physical performance of male professional soccer players in the competition setting determined via time-motion analyses has grown substantially over the last four decades leading to a substantial body of ...
A Dellal   +39 more
core   +1 more source

Species assembly in model ecosystems, II: Results of the assembly process [PDF]

open access: yes, 2010
In the companion paper of this set (Capitan and Cuesta, 2010) we have developed a full analytical treatment of the model of species assembly introduced in Capitan et al. (2009).
Bastolla   +30 more
core   +6 more sources

High growth firms, innovation and competition: the case of the US pharmaceutical industry [PDF]

open access: yes, 2013
Innovation is key to economic growth. But firms, across sectors and regions, are highly skewed in their ability to engage with innovation, and even more skewed in their ability to translate investments in innovation into higher growth.
Mazzucato, Mariana, Parris, Stuart
core   +2 more sources

Home - About - Disclaimer - Privacy