Results 81 to 90 of about 540,234 (387)

The Capitanian Minimum: A Unique Sr Isotope Beacon of the Latest Paleozoic Seawater

open access: yesFrontiers in Earth Science, 2021
The long-term trend in the Paleozoic seawater 87Sr/86Sr was punctuated by a unique episode called the “Capitanian minimum” at the end of the Guadalupian (Permian; ca. 260 Ma).
Tomomi Kani, Yukio Isozaki
doaj   +1 more source

The Index of Refraction of Seawater [PDF]

open access: yes, 1976
SIO Reference 76-1. ft smoothly varying and internally self-consistent set of tables of the index of refraction of seawater with respect to air are presented. The dependence of the index on salinity (0 to 43°/00), temperature (0 to 30°C), wavelength(400 to 700 nm) and pressure (0 to 1100 kg/cm2 gage) has been fully covered. The relevant literature from
Austin, Roswell W, Halikas, George
openaire   +3 more sources

Optimizing Angiopep‐2 Density on Polymeric Nanoparticles for Enhanced Blood–Brain Barrier Penetration and Glioblastoma Targeting: Insights From In Vitro and In Vivo Experiments

open access: yesAdvanced Functional Materials, EarlyView.
The Angiopep‐2 peptide density on polymeric nanoparticles significantly impacts blood–brain barrier (BBB) penetration. This study explores this nuanced relationship using various in vitro models and in vivo assays, revealing that dynamic models better predict BBB penetration.
Weisen Zhang   +9 more
wiley   +1 more source

Wear in Silicon Nitride Sliding Against Titanium Alloy Pairs at Different Loads Under Artificial Seawater Lubrication

open access: yesFrontiers in Materials, 2019
Tribological behaviors of Si3N4 ceramic sliding against titanium alloy at different normal loads under seawater lubricated conditions are investigated on a pin-on-disc tester.
Jianjun Zhang   +6 more
doaj   +1 more source

Past seawater experience enhances seawater adaptability in medaka, Oryzias latipes [PDF]

open access: yesZoological Letters, 2016
During the course of evolution, fishes have acquired adaptability to various salinity environments, and acquirement of seawater (SW) adaptability has played important roles in fish evolution and diversity. However, little is known about how saline environments influence the acquirement of SW adaptability.
Shigenori Nobata   +3 more
openaire   +3 more sources

Ionic Metal Poly(heptazine Imides) and Single‐Atoms Interplay: Engineered Stability and Performance for Photocatalysis, Photoelectrocatalysis and Organic Synthesis

open access: yesAdvanced Functional Materials, EarlyView.
Poly(heptazine) imides (PHIs), a crystalline carbon nitride subclass, intercalate metals to deliver high stability, tunable electronics, and efficient charge separation. These features enable solar‐driven applications such as hydrogen evolution, CO₂ reduction, and organic synthesis.
Gabriel A. A. Diab   +6 more
wiley   +1 more source

Seawater acidification more than warming presents a challenge for two Antarctic macroalgal-associated amphipods [PDF]

open access: yes, 2016
Elevated atmospheric pCO2 concentrations are triggering seawater pH reductions and seawater temperature increases along the western Antarctic Peninsula (WAP).
Amsler, Charles D.   +4 more
core   +2 more sources

A Visible Light‐Responsive Hydrogel to Study the Effect of Dynamic Tissue Stiffness on Cellular Mechanosensing

open access: yesAdvanced Functional Materials, EarlyView.
A visible light‐responsive polyacrylamide‐azobenzene hydrogel enables safe, reversible stiffness control for studying cell mechanobiology without harmful UV exposure. This approach reveals stem cells respond rapidly to mechanical changes, showing altered shape and protein distribution within one hour.
Aafreen Ansari   +11 more
wiley   +1 more source

Determination of Dieldrin and Polychlorinated Biphenyls in Seawater by Solid Phase Extraction and Capillary Gas Chromatography

open access: yesYankuang ceshi, 2014
Dieldrin and polychlorinated biphenyls (PCBs) are toxic, organic pollutants that break down extremely slowly in the marine environment. Therefore, it is of valuable significance to establish a rapid, sensitive and accurate detection method for dieldrin ...
LIU Jing   +4 more
doaj   +2 more sources

Comparative genome-centric analysis reveals seasonal variation in the function of coral reef microbiomes [PDF]

open access: yes, 2020
Microbially mediated processes contribute to coral reef resilience yet, despite extensive characterisation of microbial community variation following environmental perturbation, the effect on microbiome function is poorly understood.
Bourne, David G.   +6 more
core   +2 more sources

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