Results 81 to 90 of about 719,039 (308)

Simulating anthropogenic impacts to bird communities in tropical rain forests [PDF]

open access: yes, 2002
We used an aggregated modelling approach to simulate the impacts ofanthropogenic disturbances on the long-term dynamics of faunal diversityin tropical rain forests. We restricted our study to bird communities eventhough the approach is more general.
Huth, A., Köhler, Peter, Reinhard, K.
core   +1 more source

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

open access: yesAdvanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore   +7 more
wiley   +1 more source

Biological data derived from European weather radars

open access: yesScientific Data
Weather radars detect more than weather, they also continuously register the movements of billions of animals aloft in the lower atmosphere. This makes archived, unfiltered weather radar data a goldmine for biological monitoring purposes, providing ...
Peter Desmet   +14 more
doaj   +1 more source

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer   +6 more
wiley   +1 more source

A protocol for high-quality sectioning for tree-ring anatomy

open access: yesFrontiers in Plant Science
Quantitative wood anatomy (QWA), which involves measuring wood cell anatomical characteristics commonly on dated tree rings, is becoming increasingly important within plant sciences and ecology.
Marina V. Fonti   +19 more
doaj   +1 more source

Deforestation and wildlife management: are elephants attracted by recently deforested areas? [PDF]

open access: yes, 2019
Deforestation is a major cause or wildlife decline in tropical ecosystems. The conversion of mature forest to fields by shifting cultivation leaves behind follow lands with secondary vegetation.
Amaya-Corredor, Paola-Catalina   +8 more
core  

Abrupt climate changes of the last deglaciation detected in a Western Mediterranean forest record [PDF]

open access: yes, 2009
Abrupt changes in Western Mediterranean climate during the last deglaciation (20 to 6 cal ka BP) are detected in marine core MD95-2043 (Alboran Sea) through the investigation of high-resolution pollen data and pollen-based climate reconstructions by the ...
Dormoy, Isabelle   +3 more
core   +3 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Soil compaction and vegetation cover in a Scots pine stand at the Mediterranean rangelands [PDF]

open access: yes, 2011
Right development of ROOT SYSTEMS is essential to ensure seedling survival in the initial stages of natural regeneration processes. Soil compaction determines this development both because of its influence on soil Tª & moisture dynamics and for its ...
Aroca Fernández, Mª José   +3 more
core   +1 more source

Changes in growth of tropical forests: evaluating potential biases [PDF]

open access: yes, 2002
Over the past century almost every ecosystem on Earth has come under the influence of changes in atmospheric composition and climate caused by human activity.
Baker, T.   +13 more
core   +13 more sources

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