Results 31 to 40 of about 43,049 (265)

Ionospheric response to AGW propagation detected using GNSS measurements and coherent sounding over “Vernadsky” and “Palmer” Antarctic stations

open access: yesУкраїнський антарктичний журнал, 2017
The work presents results of the diagnostics of travelling ionospheric disturbances (TIDs) over the Antarctic Peninsula obtained by using two different techniques. The first method is based on ground-based multi- positional GNSS TEC measurements, and the
A. A. Sopin   +7 more
doaj   +1 more source

An exploratory study of interpretability for face presentation attack detection

open access: yesIET Biometrics, 2021
Biometric recognition and presentation attack detection (PAD) methods strongly rely on deep learning algorithms. Though often more accurate, these models operate as complex black boxes.
Ana F. Sequeira   +4 more
doaj   +1 more source

Modeling of GPS total electron content over the African low-latitude region using empirical orthogonal functions [PDF]

open access: yesAnnales Geophysicae, 2019
In this paper, an empirical total electron content (TEC) model and trends in the TEC over the African low-latitude region are presented. GPS-derived TEC data from Malindi, Kenya (geographic coordinates 40.194∘ E, 2.996∘ S), and global ...
G. Andima   +4 more
doaj   +1 more source

Intracerebral Hemorrhage Induces Monocyte TNF Signaling in Patients That Is Suppressed by BAF312

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Intracerebral hemorrhage (ICH) causes high morbidity and mortality, with neurotoxic inflammation driven by infiltrating monocytes. This study is an in‐depth longitudinal examination of the immune response during the first week of ICH in the presence and absence of the immunomodulatory drug BAF312 (Siponimod).
Jonathan Howard DeLong   +10 more
wiley   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Structure and function of Tec family kinase Itk

open access: yesBiomolecular Concepts, 2011
Itk is a member of the Tec family of kinases that is expressed predominantly in T cells. Itk regulates the T cell receptor signaling pathway to modulate T cell development and T helper cell differentiation, particularly Th2 differentiation.
Qi Qian, Kannan Arun Kumar, August Avery
doaj   +1 more source

MONITORING IONOSPHERIC VARIATION FOR A DEFINITE PERIOD TIME IN TURKEY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Ionosphere has been studied by a number of scientists in recent years. Since GPS observations cannot provide TEC value directly, it can be estimated from combination of observations.
S. Inyurt, C. Mekik, O. Yildirim
doaj   +1 more source

TEC anomalies—Local TEC changes prior to earthquakes or TEC response to solar and geomagnetic activity changes? [PDF]

open access: yesEarth, Planets and Space, 2008
Abstract A number of papers have reported on deviations of daily values of the maximum electron concentration of the ionospheric F 2 layer and/or total electron content (TEC) in the vicinity of an earthquake’s epicenter some time prior to the quake.
Afraimovich, Edward L.   +1 more
openaire   +1 more source

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

open access: yesAdvanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan   +16 more
wiley   +1 more source

Morphology of GPS and DPS TEC over an equatorial station: validation of IRI and NeQuick 2 models [PDF]

open access: yesAnnales Geophysicae, 2018
We investigated total electron content (TEC) at Ilorin (8.50° N 4.65° E, dip lat. 2.95) for the year 2010, a year of low solar activity in 2010 with Rz = 15.8.
O. O. Odeyemi   +5 more
doaj   +1 more source

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