Results 11 to 20 of about 796,842 (245)

Hurst Coefficient in long time series of population size: Model for two plant populations with different reproductive strategies [PDF]

open access: yes, 2010
Can the fractal dimension of fluctuations in population size be used to estimate extinction risk? The problem with estimating this fractal dimension is that the lengths of the time series are usually too short for conclusive results.
ADELA SALVADOR   +10 more
core   +2 more sources

The political dimension of animal ethics in the context of bioethics: problems of integration and future challenges [PDF]

open access: yes, 2016
Animal ethics has reached a new phase with the development of animal ethical thinking. Topics and problems previously discussed in terms of moral theories and ethical concepts are now being reformulated in terms of political theory and political action ...
Tirado, Carlos R.
core   +2 more sources

New methods for assessing the fascinating nature of nature experiences. [PDF]

open access: yesPLoS ONE, 2013
In recent years, numerous environmental psychology studies have demonstrated that contact with nature as opposed to urban settings can improve an individual's mood, can lead to increased levels of vitality, and can offer an opportunity to recover from ...
Yannick Joye   +3 more
doaj   +1 more source

SUSTAINABLE MANAGEMENT OF COASTAL RESOURCES IN MENTAWAI ISLANDS DISTRICT, WEST SUMATRA PROVINCE, INDONESIA [PDF]

open access: yesGeo Journal of Tourism and Geosites, 2023
This study aims to analyze the level of sustainability of coastal resources in the Mentawai Islands District. As an area that has various potential resources. Many developments in coastal areas are essential means of regional economic growth.
Achmad RIZAL   +6 more
doaj   +1 more source

Study on the influence of natural cracks on the mechanical properties and fracture mode for shale at the microscale: An example from the Lower Cambrian Niutitang Formation in northern Guizhou

open access: yesFrontiers in Earth Science, 2023
A large number of natural cracks exist in shale reservoirs, and the presence of natural cracks weakens the integrity of shale, which is an important factor governing the effectiveness of shale gas extraction. In this paper, shales from the Lower Cambrian
Chao Yang   +5 more
doaj   +1 more source

Revalorización de la forma en la planificación de los territorios uruguayos: mensajes de la geografía y de la herencia patrimonial [PDF]

open access: yes, 2012
Hay momentos en la vida de una ciudad o de un territorio que demandan una nueva forma que reoriente su evolución, que fije, que innove, que dé imagen de marca, que relance otro ciclo.
Ligrone, Pablo Alfredo
core   +1 more source

A Variational Stereo Method for the Three-Dimensional Reconstruction of Ocean Waves [PDF]

open access: yes, 2011
We develop a novel remote sensing technique for the observation of waves on the ocean surface. Our method infers the 3-D waveform and radiance of oceanic sea states via a variational stereo imagery formulation.
Benetazzo, Alvise   +3 more
core   +3 more sources

Fractal dimension analogous scale-invariant derivative of Hirsch’s index

open access: yesApplied Network Science, 2022
We propose a scale-invariant derivative of the h-index as “h-dimension”, which is analogous to the fractal dimension of the h-index for institutional performance analysis.
Yuji Fujita, Noritaka Usami
doaj   +1 more source

Fractal Dimension of Coastal Soil Aggregates and Its Relationship with Physical and Chemical Soil Properties

open access: yesGuan'gai paishui xuebao, 2021
【Objective and objective】 Soil aggregate is a function unit commonly used to describe the impact of soil structure on soil fertility and quality. It is temporally dynamic, modulated by a myriad of biotic and abiotic factors such as wetting-drying cycles ...
HAN Xiao   +3 more
doaj   +1 more source

Contrasting human perceptions of and attitudes towards two threatened small carnivores, Lycalopex fulvipes and Leopardus guigna, in rural communities adjacent to protected areas in Chile [PDF]

open access: yes, 2018
Indexación: Scopus.The interaction between humans and small carnivores is a phenomenon especially frequent in rural fringes, as is the case of communities surrounding natural areas. In Chile, two species of threatened carnivores, the Darwin's Fox and the
Acuña, F.   +7 more
core   +1 more source

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