Results 51 to 60 of about 737,401 (286)

As main meal for sperm whales: Plastics debris [PDF]

open access: yesMarine Pollution Bulletin, 2013
Marine debris has been found in marine animals since the early 20th century, but little is known about the impacts of the ingestion of debris in large marine mammals. In this study we describe a case of mortality of a sperm whale related to the ingestion of large amounts of marine debris in the Mediterranean Sea (4th published case worldwide to our ...
de Stephanis, Renaud   +4 more
openaire   +3 more sources

A high-resolution technique for non-target analysis of chemical substances in marine plastic debris

open access: yes, 2022
Large amounts of plastics produced worldwide accumulate in the ocean as marine litter every year. Plastics can absorb chemicals from its surrounding environment due to their hydrophobic properties.
Han, Gi Myung   +4 more
core  

Where does Arctic beach debris come from? Analyzing debris composition and provenance on Svalbard aided by citizen scientists

open access: yesFrontiers in Marine Science, 2023
Plastic debris is ubiquitous in all ecosystems and has even reached locations that humans will hardly reach such as the deep ocean floor and the atmosphere.
Anna Natalie Meyer   +2 more
doaj   +1 more source

Sorption of PCBs to environmental plastic pollution in the North Atlantic Ocean: Importance of size and polymer type

open access: yesCase Studies in Chemical and Environmental Engineering, 2020
Plastic pollution is a great threat to the marine environment. Owing to its low density, a substantial fraction of plastic debris is transported across ocean surfaces by currents.
Kristian Syberg   +10 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Engineering-geological study of debris slide-debris flow triggering mechanism in the peri-vesuvian area [PDF]

open access: yes, 2009
Nella tesi dal titolo “Engineering-geological study of debris slide-debris flow triggering mechanism in the peri-vesuvian area” il dottorando ha affrontato la complessa problematica dell’instabilità delle coltri piroclastiche che rappresenta una delle ...
Rolandi, Massimiliano
core   +1 more source

The Ecotoxicology of Plastic Marine Debris

open access: yes, 2011
The accumulation of plastic in the oceans is an ever-growing environmental concern. Plastic debris is a choking and entanglement hazard for wildlife; plastics also leach toxic compounds into organisms and ecosystems.
Sarah A. Gravem   +8 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Analysis of plastic debris on Malaysia beaches / Liyana 'Izzati Aris [PDF]

open access: yes, 2012
Plastic debris is the main cluster of solid waste component present in the marine environment. Anthropogenic activities namely recreational and fishing activities are believed to contribute to the abundance of plastic debris (1 – 30 mm in size ...
Liyana 'Izzati, Aris
core  

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

open access: yesMolecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang   +9 more
wiley   +1 more source

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