Results 21 to 30 of about 2,996,330 (295)

Ecological Discounting [PDF]

open access: yesJournal of Economic Theory, 2010
Which rates should we use to discount costs and benefits of different natures at different time horizons? We answer this question by considering a representative agent consuming two goods whose availability evolves over time in a stochastic way. We extend the Ramsey rule by taking into account the degree of substitutability between the two goods and of
Gollier, Christian
core   +9 more sources

Alpine research today

open access: yesRevue de Géographie Alpine, 2008
Alpine research benefits from several international coordination networks, only one of which – ISCAR (the International Scientific Committee on Research in the Alps) – works solely in the Alpine arc.
Jean-Jacques Brun
doaj   +1 more source

Evolutionary Stability of Ecological Hierarchy [PDF]

open access: yes, 2003
A self-similar hierarchical solution that is both dynamically and evolutionarily stable is found to the multi dimensional Lotka-Volterra equation with a single chain of prey-predator relations.
E. Chauvet   +4 more
core   +1 more source

The ecological component of the lasting development [PDF]

open access: yesZbornik Radova: Geografski institut "Jovan Cvijić", 2007
We think that a careful and objective examination of the events, of the phenomena and of the processes from nature and society, show two axiomatical truth, that determine the change of’ the conceptions and of the mentalities according to the economical ...
Mazilu Mirela
doaj   +1 more source

Research on the Operation of Roundabouts Based on the Sustainable Development Principles

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2015
The main elements of urban transport infrastructure include: the street network with intersections, bridges, viaducts, flyovers, vehicular traffic tunnels.
Henrikas Sivilevičius   +3 more
doaj   +1 more source

Spectral control for ecological stability [PDF]

open access: yes, 2018
A system made up of N interacting species is considered. Self-reaction terms are assumed of the logistic type. Pairwise interactions take place among species according to different modalities, thus yielding a complex asymmetric disordered graph.
Bagnoli, Franco   +4 more
core   +2 more sources

Acknowledging Trade-offs and Understanding Complexity: Exurbanization Issues in Macon County, North Carolina

open access: yesEcology and Society, 2014
We applied an integrative framework to illuminate and discuss the complexities of exurbanization in Macon County, North Carolina. The case of Macon County, North Carolina, highlights the complexity involved in addressing issues of exurbanization in the ...
Richard A. Vercoe   +16 more
doaj   +1 more source

Ecological and Epidemiological Peculiarities of the Tick-Borne Encephalitis and Ixodid Tick-Borne Borreliosis in Irkutsk

open access: yesЭпидемиология и вакцинопрофилактика, 2017
The tick-borne encephalitis (TBE) and Ixodid tick-borne borreliosis (ITBB) have joint vectors and form combined natural foci throughout all their area, but their epidemiology differs.
O. V. Mel'nikova, E. I. Andaev
doaj   +1 more source

Visual over auditory superiority in sensorimotor timing under optimized condition

open access: yesFrontiers in Psychology, 2022
Auditory over visual advantage in temporal processing is generally appreciated, such as the well-established auditory superiority in sensorimotor timing.
Liying Zhan   +6 more
doaj   +1 more source

Preliminary Ecological Assessment of Waller Creek [PDF]

open access: yes, 1975
This report assesses the ecological character of Waller Creek. This includes a general description, its physical setting, vegetation and habitat descriptions, ecological value indexes, and other ecological metrics.Waller Creek Working ...
Espey, Huston and Associates, Inc.   +1 more
core   +1 more source

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