Results 31 to 40 of about 42,145 (293)

Exploring The Use Of SAR Remote Sensing To Detect Microplastics Pollution In The Oceans [PDF]

open access: yes, 2018
The increase in plastic pollution is advancing micro level pollution and the total weight of microplastics (8 tons and in the North Atlantic as 10.4 x 108 tons.
Ackermann, Nicolas   +5 more
core  

Understanding and Circumventing Failure Mechanisms in Chalcogenide Optical Phase Change Material Ge2Sb2Se4Te

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
Chalcogenide optical PCMs have gathered interest for their potential in compact, non‐volatile optics and photonics. Free‐space PCM metasurfaces require new considerations from phase change memory that need to be addressed for reliable scale‐up. Several failure mechanisms pertaining to free‐space PCM devices and layout methods are isolated to prevent ...
Cosmin Constantin Popescu   +19 more
wiley   +1 more source

Report on gravity measurements and replacement of an unmanned magnetometer in the Sor Rondane Mountains, Eastern Dronning Maud Land, 2013 (JARE-55)

open access: yesAntarctic Record, 2014
Gravity measurements, replacement of the unmanned magnetometer, and a reconnaissance flight to the Belgica Mountains were carried out in the Sor Rondane Mountains as a part of the 55 th Japanese Antarctic Research Expedition (JARE-55).
Yusuke Suganuma   +3 more
doaj   +1 more source

Representativeness of European clinical trial populations in mild Alzheimer’s disease dementia: a comparison of 18-month outcomes with real-world data from the GERAS observational study

open access: yesAlzheimer’s Research & Therapy, 2018
Background Comparison of disease progression between placebo-group patients from randomised controlled trials (RCTs) and real-world patients can aid in assessing the generalisability of RCT outcomes.
Catherine Reed   +7 more
doaj   +1 more source

“A Fine, Sunshiny Night": The Authorial Afterlife of Captain James Fitzjames of the Third Franklin Expedition

open access: yesAuthorship, 2021
The Third Franklin Expedition of the British Royal Navy set sail in 1845 in search of the Northwest Passage.  There were no survivors of the expedition, and nearly all records associated with it were lost.  This personal and textual ...
doaj   +2 more sources

Expérimentation d'un groupe électrogène fonctionnant à l'huile de coprah. Tests de référence [PDF]

open access: yes, 1995
L'objectif de l'opération est de valider sur 2000 heures la possibilité d'emploi d'huile de coprah seule ou en mélange avec du fioul dans des moteurs diesels faiblement transformés.
Vaitilingom, Gilles
core   +1 more source

Generalized Mechanism Model for Ecosystem Hysteresis

open access: yesAdvanced Science, EarlyView.
A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao   +9 more
wiley   +1 more source

p16Ink4a‐Positive Hepatocytes Drive Liver Fibrosis Through Activation of LIFR Family Pathway

open access: yesAdvanced Science, EarlyView.
This study found that, following the long‐term CCl4 treatment, p16high hepatocytes appeared in zone 3, spatially co‐localizing with fibrotic areas. A specific cluster of p16high hepatocytes upregulated CTF1/LIF expression which induced HSC activation and further liver fibrosis, as revealed by single cell transcriptomic analysis.
Koji Nishikawa   +23 more
wiley   +1 more source

G. Roerich’s contribution to history of Russian expeditions in Central Asia

open access: yesRUDN Journal of World History, 2021
The study of G. Roerichs scientific heritage is at its beginning. An important basis of Roerichs many-sided scientific activities were his investigations during the expeditions in Asia. The longest, most dangerous and laborious among them was the Central
Alla Mihaylovna Shustova
doaj   +1 more source

Tough and Temperature‐Resistant Material Based on Bombyx mori Silk Fibroin

open access: yesAdvanced Science, EarlyView.
We propose a biomimetic “Hydration‐Crystallization Locking” (HCL) strategy inspired by Bombyx mori spinning to enhance silk fibroin (SF) performance in extreme temperatures. A flexible fibroin membrane (FFM) shows high strength, toughness, and shape retention under −196°C and 70°C.
Meng Zhang   +8 more
wiley   +1 more source

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