Results 111 to 120 of about 134,102,892 (221)

Ground‐penetrating radar amplitudes to roots: A numerical modelling framework for mapping coarse root system architecture

Methods in Ecology and Evolution, EarlyView.
Abstract Observations of three‐dimensional (3D) coarse root system architecture remain limited because most measurement approaches require excavation. Here, we combined dense single‐ and multi‐channel 500 MHz ground‐penetrating radar (GPR) surveys with a flow‐guided connectivity framework to non‐destructively characterise the coarse root architecture ...
Brady Flinchum, Eddie W. Banks, Ian Moffat   +2 more
wiley   +1 more source

Transient Interference Suppression Algorithm Based on Time Frequency Sparse Prior for Skywave OTHR

Leida xuebao
The target detection performance of skywave Over-the-Horizon Radar (OTHR) often struggles with transient interference. To address this issue, we have developed a transient interference suppression algorithm that uses Time Frequency Sparsity Prior (TFSP).
Zirui CHEN, Yifei JI, Xiwang LIU, Yongsheng ZHANG, Zhen DONG, Alei CHEN, Weijian LIU   +6 more
doaj   +1 more source

Cost‐Effectiveness of Early Dose Reduction or Discontinuation Versus Antipsychotic Maintenance After First‐Episode Psychosis: Results From the HAMLETT Study

Acta Psychiatrica Scandinavica, EarlyView.
ABSTRACT Background After remission from a first episode psychosis (FEP), international clinical guidelines recommend continuation of antipsychotic medication for at least 1 year, although many patients wish to reduce or discontinue medication due to side effects or long‐term health concerns.
Frederick W. Thielen, Rosanne Diepeveen, Franciska de Beer, Marieke Begemann, Nynke Boonstra, Lieuwe de Haan, Sinan Guloksuz, Shiral Gangadin, Martijn Kikkert, Sanne Koops, Jim van Os, Nico van Beveren, Wim Veling, Bram‐Sieben Rosema, HAMLETT‐OPHELIA Consortium, Iris E. Sommer, Ben Wijnen   +16 more
wiley   +1 more source

Serotonin Degradation and Lipid Metabolism Regulate Human Tc2 Cell Effector Functions

Allergy, EarlyView.
Human Tc2 cells exhibit a metabolically active phenotype characterized by enhanced glycolysis, mitochondrial respiration, and fatty acid uptake dependent on PPARγ. Alarmins strongly amplify IL‐5 and IL‐13 production in Tc2 cells, supporting a shared immunometabolic program across type 2 lymphocytes.
Sabrina de Souza Ferreira, Lisa Holla, Sophia Björkander, Marie Kaarup Bek, Lorenz Wirth, Patrick A. Shearer, Jesper Säfholm, Erik Sachs, Mamdoh Al‐Ameri, Kasra Vali, Sandra Ekström, Erik Melén, Jenny Mjösberg, Christopher Andrew Tibbitt   +13 more
wiley   +1 more source

Over-the-horizon radar array calibration / by Ishan Samjeva Daniel Solomon.

, 1998
Includes bibliographical references (p. 207-232)xxii, 232 p. : ill. ; 30 cm.Due to the rapid deployment of modern over-the-horizon radars, antenna/sensor position errors may be present and, since the antennas have a simple and cost-effective design ...
Solomon, Ishan Samjeva Daniel
core  

Four Questions for Ethnographers Under Trumpian Authoritarianism

American Anthropologist, EarlyView.
ABSTRACT This article examines evolving challenges and ethical dilemmas facing ethnographers working under intensifying authoritarianism in the United States. Because very little of what the United States is experiencing is new, my work here is primarily curatorial in nature, drawing upon the lessons offered by scholars across disciplines in the United
Elizabeth Hanna Rubio
wiley   +1 more source

Elevation bias due to penetration of spaceborne radar signal on Grosser Aletschgletscher, Switzerland

Journal of Glaciology
Digital elevation models (DEMs) from the spaceborne interferometric radar mission TanDEM-X hold a large potential for glacier change assessments. However, a bias is potentially introduced through the penetration of the X-band signal into snow and firn ...
Jacqueline Bannwart, Livia Piermattei, Inés Dussaillant, Lukas Krieger, Dana Floricioiu, Etienne Berthier, Claudia Roeoesli, Horst Machguth, Michael Zemp   +8 more
doaj   +1 more source

Modelling Patterns of Past Inundation Processes Combining Geoarchaeology and Morphometric Hydrological Analysis in the Shashe‐Limpopo Basin, South Africa

Archaeometry, EarlyView.
ABSTRACT Riverine and valley systems across the globe have been central to the development of past urban centres. By AD 900, the Shashe and Limpopo Rivers seem to have facilitated the interaction and integration of early farming communities in southern Africa. This paper focuses on the application of geoarchaeological perspectives made available by the
B. S. Nxumalo
wiley   +1 more source

Stacked Autoencoders for Outlier Detection in Over-the-Horizon Radar Signals. [PDF]

Comput Intell Neurosci, 2017
Protopapadakis E, Voulodimos A, Doulamis A, Doulamis N, Dres D, Bimpas M.   +5 more
europepmc   +1 more source

Combined Approach to Locate Medieval Fortified Manor Houses in Central Moravia (the Czech Republic)

Archaeometry, EarlyView.
ABSTRACT A systematic prospection of medieval fortified manor houses (FMHs) in Central Moravia (Czech Republic) was conducted with the aim of mapping their distribution and facilitating both further scholarly research and more effective heritage protection by responsible institutions.
Martin Moník, Jakub Novák, Stanislav Popelka, Ondřej Růžička, Markéta Beitlová, Jan Martínek, Pavel Šlézar, Josef Svoboda, Lukáš Hlubek, Tomáš Lehotský, David Papajík   +10 more
wiley   +1 more source