Results 81 to 90 of about 50,016 (339)

An Attempt to Recover a Paleomonsoon Signal in the Chinese Loess Plateau Using Anisotropy of Magnetic Susceptibility

Frontiers in Earth Science, 2020
The paleowind direction in the Chinese Loess Plateau (CLP) was studied using anisotropy of magnetic susceptibility (AMS) data. Magnetic fabrics were examined for the last glacial loess (L1) and last inter-glacial paleosol (S1) in the southern and central
Feng Xian, Feng Xian, Feng Xian, Rui Zhang, Rui Zhang, Rui Zhang   +5 more
doaj   +1 more source

Barking up the Right Tree: Using Tree Bark to Track Airborne Particles in School Environment and Link Science to Society

GeoHealth, 2022
Children's exposure to air pollution affects both their health and learning skills. Fine and ultrafine particulate matter (PM2.5, PM1), notably issued from traffic sources in urban centers, belong to the most potential harmful health hazards.
A. d. S. Leite, S. Rousse, J.‐F. Léon, R. I. F. Trindade, S. Haoues‐Jouve, C. Carvallo, M. Dias‐Alves, A. Proietti, E. Nardin, M. Macouin   +9 more
doaj   +1 more source

Coupled spin models for magnetic variation of planets and stars

, 2011
Geomagnetism is characterized by intermittent polarity reversals and rapid fluctuations. We have recently proposed a coupled macro-spin model to describe these dynamics based on the idea that the whole dynamo mechanism is described by the coherent ...
A. Ferriz-Mas, A. Nakamichi, Acebron, Antoni, Campa, Christensen, D. Schmitt, Dias, Franchiotti, Gilbert, H. Mouri, Inglis, Ishikawa, J. Wicht, Kageyama, Kageyama, Kida, Kono, Korte, Kuramoto, M. Morikawa, Matsuyama, Mazaud, Rikitake, Roberts, Seki, Sota, Stanley, Stevenson, Tsinober   +29 more
core   +1 more source

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen, Ya‐Ting Chang, Levinia Lim, Pai‐Yi Chiu, Jung‐Lung Hsu, SangYun Kim, Wataru Narita, Na Young Ryoo, Kyoko Suzuki, Nagaendran Kandiah, Sebastian Crutch, Ming‐Chyi Pai   +11 more
wiley   +1 more source

Hydroclimatic Changes Revealed by Multiple Proxies Since the Last Glacial Maximum from the Core Monsoon Zone of India

Quaternary
We present multiproxy records from a 2.25-m-long lake sediment profile from central India, which suggested that between ~22,200 and 18,658 cal yr BP, the Indian Summer Monsoon (ISM) was weak, supporting open vegetation in a cool and dry climate, which is
Mohammad Firoze Quamar, Jyotsna Dubey, Pooja Tiwari, Prasanta Kumar Das, Biswajeet Thakur, Mohammad Javed, Nagendra Prasad, M. E. T. Maneesha, Satish J. Sangode   +8 more
doaj   +1 more source

Rock magnetic and geochemical evidence for authigenic magnetite formation via iron reduction in coal-bearing sediments offshore Shimokita Peninsula, Japan (IODP Site C0020) [PDF]

, 2017
Sediments recovered at Integrated Ocean Drilling Program (IODP) Site C0020, in a fore‐arc basin offshore Shimokita Peninsula, Japan, include numerous coal beds (0.3–7 m thick) that are associated with a transition from a terrestrial to marine ...
Clyde, William C., Johnson, Joel E., Maxbauer, Daniel P., Phillips, Stephen C., Riedinger, Natascha, Setera, Jacob B., Severmann, Silke   +6 more
core   +1 more source

The Missing Memristor: Novel Nanotechnology or rather new Case Study for the Philosophy and Sociology of Science?

, 2012
In 2008, it was widely announced that the missing memristor, a basic two-terminal electrical circuit element, had finally been discovered. The memristor is the fourth and last such circuit element and thus completes circuit theory.
Vongehr, Sascha
core   +1 more source

Innate Immune Reprogramming Mediated by Endogenous Retroelement Dysregulation Drives Multiple Sclerosis Progression

Annals of Clinical and Translational Neurology, EarlyView.
Epigenetic reprogramming in hematopoietic stem and progenitor cells (HSPCs) and downstream myeloid cells, mediated by H3.3 downregulation and endogenous retroelement (ERE) overexpression, contributes to the progression of multiple sclerosis (MS). ABSTRACT Background Skewed myelopoiesis in the bone marrow has been identified as a key driver of multiple ...
Li‐Mei Xiao, Qiu‐Ping Zhao, Run‐Yun Li, Wei Chen, Huan‐Huan Song, Wan‐Jin Chen, Ying Fu   +6 more
wiley   +1 more source

ODP Site 1249, ODP Site 1252, and IODP Site U1325: X-ray fluoresence core scanning, laser diffraction grain size, CNS elemental/isotopic, environmental magnetism, and age model data

, 2022
Stephen C. Phillips, Joel E. Johnson, William C. Clyde, Wei‐Li Hong, Jacob Setera, Marta E. Torres   +5 more
openalex   +2 more sources

Photocatalytic activity, optical and ferroelectric properties of Bi0.8Nd0.2FeO3 nanoparticles synthesized by sol-gel and hydrothermal methods

, 2018
In this study, the effects of synthesis method and dopant Neodymium ion on the ferroelectric properties and photocatalytic activity of bismuth ferrite were studied.
Maleki, Hamed
core   +1 more source