Results 11 to 20 of about 188,104 (310)

Spatiotemporal Evolution and Optimization of Landscape Patterns Based on the Ecological Restoration of Territorial Space [PDF]

open access: yes, 2022
The ecological restoration of territorial space emphasizes the synergy between ecology and social development. On this basis, we used landscape index analysis methods to explore the spatiotemporal evolution of landscape patterns in urban areas on a ...
Fayong Li, Wenwen Xu, Xuewei Hu
core   +1 more source

The relative dependence of Spanish landscape pattern on environmental and geographical variables over time [PDF]

open access: yes, 2008
The analysis of the dependence of landscape patterns on environment was carried out in order to investigate the landscape structure evolution of Spain. The underlying concept was that the dependence between landscape spatial structure and environmental ...
Ortega Quero, Marta   +13 more
core   +2 more sources

Solar modulation of flood frequency in central Europe during spring and summer on interannual to multi-centennial timescales [PDF]

open access: yesClimate of the Past, 2016
Solar influences on climate variability are one of the most controversially discussed topics in climate research. We analyze solar forcing of flood frequency in central Europe during spring and summer on interannual to multi-centennial timescales ...
M. Czymzik, R. Muscheler, A. Brauer
doaj   +1 more source

Evolutionary design using grammatical evolution and shape grammars : designing a shelter [PDF]

open access: yes, 2010
A new evolutionary design tool is presented, which uses shape grammars and a grammar-based form of evolutionary computation, grammatical evolution (GE).
John Mark Swafford   +18 more
core   +1 more source

Magnetostratigraphy of sediments from Lake El'gygytgyn ICDP Site 5011-1: paleomagnetic age constraints for the longest paleoclimate record from the continental Arctic [PDF]

open access: yesClimate of the Past, 2014
Paleomagnetic measurements were performed on sediments drilled from ICDP Site 5011-1 in Lake El'gygytgyn (67°30' N, 172°05' E) located in Far East Russian Arctic. The lake partly fills a crater formed by a meteorite impact 3.58 ± 0.04 Ma ago.
E. M. Haltia, N. R. Nowaczyk
doaj   +1 more source

Microfluidic landscapes for evolution [PDF]

open access: yesCurrent Opinion in Chemical Biology, 2010
Evolution at its heart is an iterative algorithm composed of three steps: selection, amplification and mutagenesis. This algorithm can be applied to complex inputs such as populations of whole organisms and viruses, or mixtures of bare nucleic acids and proteins.
openaire   +2 more sources

Tracing rate and extent of human-induced hypoxia during the last 200 years in the mesotrophic lake, Tiefer See (NE Germany) [PDF]

open access: yesBiogeosciences
The global spread of lake hypoxia, [O2] < 2 mg L−1, during the last 2 centuries has had a severe impact on ecological systems and sedimentation processes. While the occurrence of hypoxia was observed in many lakes, a detailed quantification of hypoxia
I. Sirota   +9 more
doaj   +1 more source

The unexpectedly short Holocene Humid Period in Northern Arabia

open access: yesCommunications Earth & Environment, 2022
The Holocene Humid Period in Northern Arabia may only have lasted for less than 1000 years and was characterised by substantial regional climatic variability, according to a high-resolution multi-proxy varved lake record from Tayma, Saudi Arabia.
Ina Neugebauer   +14 more
doaj   +1 more source

Evolution of the Yeast Recombination Landscape [PDF]

open access: yesMolecular Biology and Evolution, 2018
AbstractMeiotic recombination comprises crossovers and noncrossovers. Recombination, crossover in particular, shuffles mutations and impacts both the level of genetic polymorphism and the speed of adaptation. In many species, the recombination rate varies across the genome with hot and cold spots.
Haoxuan, Liu   +2 more
openaire   +2 more sources

Statistical Models of the Protein Fitness Landscape: Applications to Protein Evolution and Engineering [PDF]

open access: yes, 2012
Understanding the protein fitness landscape is important for describing how natural proteins evolve and for engineering new proteins with useful properties.
Romero, Philip Anthony
core   +1 more source

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