Results 41 to 50 of about 3,743,021 (314)

Recursos biológicos

open access: yesRevue d'anthropologie des connaissances, 2011
Este texto presenta el dossier sobre los recursos biológicos. El auge de la biología molecular y de la bioinformática, la secuenciación del genoma de un número cada vez mayor de organismos, así como la evidencia de la pérdida de diversidad biológica en la tierra, otorgan a los recursos biológicos un protagonismo que es realmente relevante cuestionar ...
openaire   +4 more sources

Towards a Puviani’s Fiscal Illusion Index [PDF]

open access: yes
This paper presents an index of Fiscal Illusion for 68 democratic countries from 1960 to 2006. The theory of Fiscal Illusion studied relates to a wrong perception of government budget aggregates from the voters’ and taxpayers’ perspectives.
Paulo Reis Mourao
core  

Epistemic opacity in Antarctic science: Unknowing the last frontier

open access: yesPeople and Nature, EarlyView.
Abstract Antarctica is facing intensifying pressures from climate change, industrial fishing, tourism and renewed geopolitical competition, even as scientific activity on the continent reaches unprecedented levels. We argue that this proliferation of research often fails to deliver the integrated, policy‐relevant knowledge needed for precautionary ...
Virginia Morandini, Álvaro Soutullo
wiley   +1 more source

Public capital effects on spanish regions productivity: a non-parametric approach (1965-1998) [PDF]

open access: yes
This paper contributes to the empirical literature on public capital effects on Spanish regions productivity by applying an alternative approach to examine its influence based on a non-parametric FDH production technology with variable scaling parameters
Ramón Mª-Dolores
core  

Varied motivations for secondary forest reclearing among landholders make forest persistence challenging

open access: yesPeople and Nature, EarlyView.
Abstract Remote sensing studies show that ephemeral forest regeneration is widespread in the tropics, limiting the climate and biodiversity benefits from net increases in forest cover. Socioeconomic, biophysical and landscape variables can help explain the spatial distribution of reforestation reversals.
Francis H. Joyce
wiley   +1 more source

Recurso de protección y recurso de inaplicabilidad

open access: yesRevista de Derecho Público, 2015
Este trabajo versa sobre las posibles relaciones e interrelaciones que pueden establecerse en el funcionamiento y operatividad de los recursos de inaplicabilidad (Rl) y recursos de proteccion (RP). Aun cuando aparentemente se trata de instituciones diferentes y desconectadas entre si, es posible observar sin embargo, a lo menos, dos tipos de relaciones:
openaire   +1 more source

A projection model of the contributory pension expenditure of the spanish social security system: 2004-2050 [PDF]

open access: yes
The need for long-term fiscal projections is self evident. Of these projections, pension expenditure is one of the most important since firstly it represents a large share of total expenditure, and secondly because of the positive correlation between ...
Cío Patxot   +4 more
core  

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

open access: yesPolymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva   +10 more
wiley   +1 more source

A assistência estudantil nos Institutos Federais de Educação, Ciência e Tecnologia

open access: yesSER Social, 2018
O objetivo deste artigo é analisar a execução do Programa Nacional de Assistência Estudantil, a partir das normativas institucionais dos 38 Institutos Federais de Educação (IFs) e seus campi, para identificar as ações priorizadas.
Talita Prada   +1 more
doaj   +1 more source

Efficiency in the management of urban water services. What have we learned after four decades of research? [PDF]

open access: yes
The analysis of efficiency in the management of urban water services offers valuable information both for the managers of this service and for public bodies in order to introduce improvements in business practices and in the design of public policies ...
Francisco González Gómez   +1 more
core  

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