Results 71 to 80 of about 1,404 (260)

Paleointensity Estimates From Ignimbrites: The Bishop Tuff Revisited

Geochemistry, Geophysics, Geosystems, 2018
Volcanic ash flow tuffs (ignimbrites) may contain single domain‐sized (titano) magnetite that should be good for recording geomagnetic field intensity, but due to their complex thermal histories also contain other magnetic grains, which can complicate ...
Margaret S. Avery, Jeffrey S. Gee, Julie A. Bowles, Michael J. Jackson   +3 more
doaj   +1 more source

Magnetoelectric Nanoparticle‐Based Wireless Brain–Computer Interface: Underlying Physics and Projected Technology Pathway

Advanced Science, EarlyView.
Magnetoelectric nanoparticles (MENPs) enable fully wireless, minutely invasive neuromodulation, and potentially neural recording, by converting magnetic into electric and, conversely, electric into magnetic fields, respectively, at high spatiotemporal resolution.
Elric Zhang, Max Shotbolt, Mostafa Abdel‐Mottaleb, Shawnus Chen, Victoria Andre, Jieyuan Tian, Jonathan Shulgach, Max Murphy, Brian Noga, Ping Liang, Darcy Griffin, Douglas Weber, Marta Pardo, Salvador Pane, Sakhrat Khizroev   +14 more
wiley   +1 more source

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

Advanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave, Nicolas Bernier, Thomas Jalabert, Yoann Brûlé, Damien Térébénec, Pierre Meilleur, Hervé Roussel, Jean‐Baptiste Dory, Oussama J. Mouawad, Thibault Chommaux, Cristian Mocuta, Dominique Thiaudière, Laurent Vila, Françoise Hippert, Pierre Noé   +14 more
wiley   +1 more source

Iron Formations as the Source of the West African Magnetic Crustal Anomaly

Frontiers in Earth Science, 2018
The geological sources of major magnetic field anomalies are still poorly constrained, in terms of nature, geometry, and vertical position. A common feature of several anomalies is their spatial correlation with cratonic shields and, for the largest ...
Nicolas Launay, Yoann Quesnel, Pierre Rochette, François Demory   +3 more
doaj   +1 more source

Outstanding TC Enhancement in 5d–3d Y2NiIrO6 by Compression

Advanced Science, EarlyView.
Double perovskite Y2NiIrO6 with half filed 3d eg–5d t2g configuration, exhibits first experimental example of pressure‐enhanced magnetic interaction in iridate and iridate‐related systems. Its Curie temperature increase from 192 to 243 K at 17 GPa. Herein, the orthogonal eg–t2g pathway remains robust even under compression‐induced lattice distortion ...
Zheng Deng, Yao Zhang, Sijia Zhang, Jing Song, Wanli He, Yuanzhe Li, Meilin Jin, Xiang Li, Guanghua Liu, Zhen Dong, Jingkai Bi, Wenmin Li, Jianfa Zhao, Jun Zhang, Yi Peng, Luchuan Shi, Junling Meng, Xiancheng Wang, Changqing Jin   +18 more
wiley   +1 more source

Magnetic properties of surface sediments in a closed alkaline volcanic lake: A case study from Lake Batur, Bali, Indonesia

International Journal of Sediment Research
Lake Batur is a closed volcanic lake with alkaline water, located on the island of Bali, Indonesia. This study of Lake Batur presents a comprehensive rock magnetism analysis of the sediments and a geochemical examination of the water.
Ulvienin Harlianti, Satria Bijaksana, Irwan Iskandar, Rachmat Fajar Lubis, Mamilla Venkateshwarlu, Animireddi Venkata Satyakumar, Putu Billy Suryanata, Silvia Jannatul Fajar, Ni Komang Tri Suandayani, Khalil Ibrahim   +9 more
doaj   +1 more source

Cooling rate effects on the magnetization of volcanic rocks: Some implications for paleointensity determination [PDF]

Geofísica Internacional, 2006
Effects of variation of cooling rate in the acquisition of thermoremanent magnetization (TRM) are analyzed on a suite of volcanic rocks. We use a three-step cooling rate experimental procedure applied at three distinct temperatures of TRM acquisition ...
Jaime Urrutia-Fucugauchi, Avto Goguitchaichvili, Juan Morales   +2 more
doaj  

SIRT6‐Mediated Deacetylation of ATF3 Promotes Silica‐Induced Lung Fibrosis by Enhancing its Nuclear Import via Binding to Importin α

Advanced Science, EarlyView.
SIRT6‐mediated ATF3 acetylation drives MGARP transcription and mitochondrial dysfunction in macrophages, promoting macrophage senescence and pulmonary fibrosis. Mechanistically, HSP70/Importin α competitively binds to ATF3, modulating its nuclear translocation.
Demin Cheng, Wenxia Bu, Fengxu Wang, Yueyuan Jin, Rongzhu Liu, Rui Zhao, Xuehai Wang, Mengna Jiang, Jinping Shen, Xinhang Cheng, Zuming Chen, Li Zhu, Jinlong Li, Zhenzhong Ge, Shichen Miao, Haotian Xu, Xiaoyu Zhou, Dongming Wang, Xinyuan Zhao   +18 more
wiley   +1 more source

IDENTIFICATION OF ANTHROPOGENIC MATERIALS IN TOPSOIL FROM THE URBAN AREA OF BANJARMASIN, INDONESIA USING GEOCHEMICAL AND ROCK MAGNETIC PROPERTIES

Rudarsko-geološko-naftni Zbornik
The city of Banjarmasin is located in a peatland and has a tropical climate. Peat areas have their own uniqueness, plus this city is traversed by many tributaries and is very rarely researched, especially in relation to the use of rock magnetism.
Sudarningsih Sudarningsih, Tetti Novalina Manik, Fahruddin Fahruddin, Gerald Tamuntuan, Fahrun Razi, Dzikri Dzikri   +5 more
doaj   +1 more source

Magnetic studies of natural goethite samples from Tharsis, Huelva, Spain [PDF]

Geofísica Internacional, 2006
Magnetic properties of goethite have not been widely studied. Natural samples often contain complex mineral mixtures. Material from Tharsis (Huelva, Spain) is studied in order to corroborate the presence of goethite using rock magnetic measurements ...
M. A. E. Chaparro, A. M. Sinito, R. E. de Barrio, J. C. Bidegain   +3 more
doaj