Results 91 to 100 of about 12,161 (259)
Limnology and Oceanography Letters, 2016 In many lakes across the Northern Hemisphere, paleolimnological records have revealed that the relative abundances of the small centric diatom, Discostella stelligera, changed over the past century, with these widespread shifts attributed to climate ...
Jasmine E. Saros +3 more
doaj +1 more source
NANOMECHANICAL TESTING OF DIATOMS
, 2012 A test scheme to test micro-beams from diatom frustule has been developed. The method is capable of testing both complete beams and beams made from the individual layers of the frustule. The biosilica is shown to be a very brittle material with an average fracture stress of 336 +- 73 MPa and a flexural modulus of 5.72 +- 2.9 GPa.
openaire +1 more source
River Research and Applications, EarlyView.ABSTRACT River regulation following damming is often associated with deleterious downstream effects, in large part due to reduced total discharge and disruption of seasonal flooding. These effects would be expected to be exacerbated by drought, particularly extended drought.
Jeffrey G. Holmquist +1 more
wiley +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.This research established a new object detection model based on YOLOv11 to recognise benthic organisms, specifically sea cucumbers, by utilising high‐resolution photogrammetric‐based orthomosaics acquired along infralittoral Mediterranean Sea beds. The model demonstrated impressive performance metrics and, when combined with the Deepness plugin for the
Gian Mario Sangiovanni +9 more
wiley +1 more source
Small, EarlyView.Density functional theory calculations and microkinetic modeling were carried out on 108 dual‐atom catalysts with varied metalmetal distances ranging from 2.2 to 3.5 Å. The results reveal that moderate spacing of around 3.0 Å promotes bridging oxygen adsorption and dissociative reduction pathways, weakens the hydroxylhydroperoxyl scaling relationship ...
Yu Mao +7 more
wiley +1 more source
Small Methods, EarlyView.This study utilizes density functional theory (DFT) and constrained molecular dynamics (cMD) to investigate the free energy landscape of the electrochemical CO2 reduction reaction at a liquid–solid interface. The research highlights a dual‐atom catalyst—specifically a Cu─Sn pair anchored in a nitrogen‐doped carbon framework—that facilitates the ...
Imran Muhammad +7 more
wiley +1 more source
The Gulf of Naples as a model system for plankton ecology studies
, 2023 Marine Ecology, EarlyView.
Adriana Zingone +2 more
wiley +1 more source
Acta Scientiarum: Biological SciencesThe aim of this study is to determine the epilithic diatom flora of stations exposed to pollutants of different characteristics, to test the relationships of these diatoms with water quality and the suitability of environmental quality indicators, and ...
Vesile Yildirim, Selda Demirkapu
doaj +1 more source
Environmental Toxicology, EarlyView.ABSTRACT Freshwater ecosystems are increasingly impacted by anthropogenic pollutants, including the widely used herbicide metolachlor (MET) and cigarette butt (CB) litter. Parasites represent an additional biotic stressor that can modulate pollutant effects on their hosts.
Erika Berenice Martínez‐Ruiz +3 more
wiley +1 more source
Artemia salina Toxicity Assay: Standardization in a 24‐Well Microplate
Environmental Toxicology, EarlyView.ABSTRACT Bioassays with Artemia sp. are widely used in aquatic, environmental, and human toxicology as an initial tool to investigate the toxicity of plant extracts, isolated compounds, drugs, and products of natural or synthetic origin. These assays allow for the estimation of the median lethal concentration (LC50) and guide subsequent studies in ...
Matheus Pires Miranda +4 more
wiley +1 more source