Results 61 to 70 of about 7,766,436 (163)

Acid-base regulation in the sea urchin Parechinus angulosus during CO₂-induced seawater acidification [PDF]

open access: yes, 2013
Ocean acidification is predicted to have adverse effects on the physiologies of marine organisms, particularly those that produce calcified structures. Extracellular homeostasis is considered to be critical to mediating the effects of ocean acidification.
Dyer, Alexei
core   +1 more source

Effects of predation upon the long-spined sea urchin Diadema antillarum by the spotted spiny lobster Panulirus guttatus

open access: yesMarine Ecology Progress Series, 2014
Sea urchins, important herbivores in marine ecosystems, are strongly impacted by both the direct and indirect effects of predation, and the long-spined sea urchin Diadema antillarum is no exception. Once abundant on Caribbean coral reefs, D. antillarum populations were decimated by disease in the early 1980s, and only where their natural predators have
Kintzing, Meredith D.   +1 more
openaire   +3 more sources

Dynamic Reconstruction of Metal–Organic Framework and Metal–Organic Framework‐Derived Electrocatalysts for Bifunctional Oxygen Electrocatalysis in Alkaline Energy Devices

open access: yesElectrochemical Science Advances, Volume 6, Issue 5, October 2026.
ABSTRACT Alkaline oxygen reduction reaction (ORR)/OER bifunctionality is central to rechargeable Zn–air batteries, reversible fuel cells and regenerative electrolysis. These technologies are promising for mitigating carbon emissions resulting from fossil fuel energy dependency, driving the energy sector towards a carbon‐neutral energy cycle.
Tebogo Abigail Mashola   +4 more
wiley   +1 more source

From Tetracycline to Sulfamethoxazole: Photocatalytic Degradation and Mechanistic Insights in Aquatic Environments

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang   +6 more
wiley   +1 more source

Molecular characterization of novel ADP-ribosyl cyclases from the sea urchin [PDF]

open access: yes, 2010
Calcium signalling is ubiquitous and regulates diverse cellular processes. Cyclic ADP-ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate (NAADP) are second messengers that are involved in calcium release from the intracellular organelles ...
Ramakrishnan, L.
core  

Sea Urchins Predation Facilitates Coral Invasion in a Marine Reserve [PDF]

open access: yes, 2011
Macroalgae is the dominant trophic group on Mediterranean infralittoral rocky bottoms, whereas zooxanthellate corals are extremely rare. However, in recent years, the invasive coral Oculina patagonica appears to be increasing its abundance through ...
Ballesteros i Sagarra, Enric, 1958-   +22 more
core   +1 more source

Inside‐Outside ROS Therapeutic Strategy Based on Piezoelectric Nano‐Urchin for Drug‐Resistant Bacteria Biofilm Infections

open access: yesAdvanced Science, Volume 13, Issue 50, 7 September 2026.
The contribution of this study lies not only in enabling effective treatment of drug‐resistant biofilm infections, but also in establishing a transferable therapeutic paradigm: Ultrasound‐triggered mechanical forces synergistically enhance piezoelectric polarization and nanozyme activity, driving functional ROS generation inside and outside biofilms ...
Xinjian Guo   +5 more
wiley   +1 more source

Sea-Urchin-Like Bi2S3 Microstructures Decorated with Graphitic Carbon Nitride Nanosheets for Use in Food Preservation

open access: yes, 2022
Although nitrite (NO2–) is listed as a poisonous inorganic pollutant that is dangerous to humans and other creatures, it is widely used in food preservatives and agricultural products. It is frequently detected in many foods, water, environmental systems,
Sea-Fue Wang   +7 more
core   +1 more source

Dimensional Engineering of Carbon‐Based Hybrids: From 1D Conductive Networks to 3D Porous Architectures for Next‐Generation Microwave Absorption

open access: yesAdvanced Science, Volume 13, Issue 52, 18 September 2026.
This review explores dimensional architecture engineering to overcome the impedance‐attenuation trade‐off in electromagnetic wave absorbing materials. By analyzing 1D to 3D structures and their multidimensional hybrids, we highlight synergistic mechanisms for enhanced performance.
Chuanyu Liu   +7 more
wiley   +1 more source

The Influence of Shelter, Conspecifics, and Threat of Predation on the Behavior of the Long-Spined Sea Urchin (Diadema antillarum)

open access: yesJournal of Shellfish Research, 2014
ABSTRACT The interplay of competition and predation often affects prey habitat use, which may concentrate prey in safer areas with indirect consequences on their foraging efficiency and the effects of their foraging on the community. Predation is intense on coral reefs where competition for limited space and food is severe.
Kintzing, Meredith D.   +1 more
openaire   +3 more sources

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