Results 61 to 70 of about 609,703 (204)

Tecnologías de información en la toma de decisiones operativas en empresas petroleras del estado Zulia

open access: yesTelos: Revista de Estudios Interdisciplinarios en Ciencias Sociales, 2010
Las tecnologías de información (TI) han surgido como nuevas herramientas que transforman la manera tradicional de hacer las cosas, facilitando la automatización en actividades tanto operativas como administrativas en las organizaciones y mejorando el ...
Mildred Romero, Yetselinne Escalona
doaj  

Aggregate and sector-specific exchange rate indexes for the Portuguese economy [PDF]

open access: yes
Economic theory and empirical evidence suggest that fluctuation in exchange rates may have strong reallocation effects. Accession to the Exchange Rate Mechanism in 1992, and then to the European Monetary Union em 1999, implied a drastic change in the ...
Fernando Alexandre   +3 more
core  

The N=4 effective action of type IIA supergravity compactified on SU(2)-structure manifolds [PDF]

open access: yes, 2011
We study compactifications of type IIA supergravity on six-dimensional manifolds with SU(2) structure and compute the low-energy effective action in terms of the non-trivial intrinsic torsion.
Danckaert, Thomas   +4 more
core   +5 more sources

The new corruption crusaders: Security sector ties as an anti-corruption voting heuristic

open access: yesLatin American Politics and Society
AbstractDespite the salience of corruption in elections in Latin America and beyond, it remains unclear what makes certain candidates attractive to voters as solutions to address corruption. Building on studies about the effect of candidates’ professional affiliation on voting behavior, we hypothesize that police and military officers are perceived to ...
Luiz Vilaça, Jacob R. Turner
openaire   +1 more source

Political risk in light rail transit PPP projects [PDF]

open access: yes, 2008
Since 2003 public-private partnerships (PPPs) have represented between 10 and 13.5% of the total investment in public services in the UK. The macro-economic and political benefits of PPPs were among the key drivers for central government's decision ...
Al-Tabtabai H.   +15 more
core   +1 more source

Phenomenology and cosmology of weakly coupled string theory [PDF]

open access: yes, 1998
The weakly coupled vacuum of $E_8\otimes E_8$ heterotic string theory remains an attractive scenario for phenomenolgy and cosmology. The particle spectrum is reviewed and the issues of gauge coupling unification, dilaton stabilization and modular ...
Gaillard, Mary K.
core   +3 more sources

Thermomechanical Processing of Cost-Affordable Powder Metallurgy Ti-5Fe Alloys from the Blended Elemental Approach: Microstructure, Tensile Deformation Behavior, and Failure

open access: yesMetals, 2020
The development of cost-affordable Ti alloys is key for the application of Ti in other industries like the automobile sector. Therefore, a combination of powder metallurgy (PM) and low-cost compositions is an interesting approach. In this article, a cost-
Carlos Romero   +3 more
doaj   +1 more source

Hamiltonian analysis of BHT massive gravity

open access: yes, 2011
We study the Hamiltonian structure of the Bergshoeff-Hohm-Townsend (BHT) massive gravity with a cosmological constant. In the space of coupling constants $(\Lambda_0,m^2)$, our canonical analysis reveals the special role of the condition $\Lambda_0/m^2 ...
B. Cvetković   +30 more
core   +1 more source

Forecasting in the presence of recent structural change [PDF]

open access: yes, 2011
We examine how to forecast after a recent break. We consider monitoring for change and then combining forecasts from models that do and do not use data before the change; and robust methods, namely rolling regressions, forecast averaging over different ...
Eklund, J., Kapetanios, G., Price, S.
core   +1 more source

Higher education stimulating creative enterprise [PDF]

open access: yes, 2011
This report summarises the research undertaken by the Business & Community School at the University for the Creative Arts (UCA), analysing ways that higher ediucation (HEIs) can support, and indeed stimulate, the creative economy.
Campbell, Frances, Ely, Philip
core   +1 more source

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