Results 51 to 60 of about 623,086 (230)

Characterizing Cutaneous α‐Synuclein Deposition and Seeding Activity in Parkinson's Disease Subtypes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cutaneous phosphorylated α‐synuclein (p‐syn) and α‐synuclein seeding activity are promising biomarkers for Parkinson's disease (PD), but their clinical value remains uncertain due to disease heterogeneity. This study evaluates these two biomarkers in PD patients to inform phenotype‐specific diagnosis and disease severity assessment ...
Yuting Jin, Tianyuan Yang, Minglei Liu, Haiyang Luo, Jing Yuan, Ke Zhang, Xinsheng Han, Jing Yang, Yuming Xu   +8 more
wiley   +1 more source

Geosynchronous Satellite Orbit Determination [PDF]

International Astronomical Union Colloquium, 1997
AbstractThe paper presents the results of the orbit determination of geosynchronous satellites derived from 1921 positional observations of a few dozens of satellites obtained at the double wide-angle astrograph DWA (D=0.4m, F=2m) of the Main Astronomical Observatory of the National Academy of Sciences of Ukraine in 1985–1991.
openaire   +2 more sources

Determination of Clock Offset Using GPS Carrier Phase Measurements [PDF]

Journal of Astronomy and Space Sciences, 2005
Every time laboratory in the world follows an international standard time scale and GPS (Global Positioning System) is playing an important role. Korea Research Institute of Standards and Science is also operating a permanent GPS station for time ...
Jihyun Ha, Kwan-Dong Park, Chang-Bok Lee
doaj   +1 more source

“Low‐Positive” MOG‐IgG Cases Among Adults With a First Event Suggestive of Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine the prevalence and clinical characteristics of patients with “low‐positive” (LP) MOG‐IgG (titres 1:160–1:320) among adults with a first demyelinating event (FDE) suggestive of multiple sclerosis (MS). Methods From the Barcelona CIS inception cohort, we included adult patients with serum collected ≤ 6 months from the FDE.
Javier Villacieros‐Álvarez, Carmen Espejo, Georgina Arrambide, Mireia Castillo, Marta Rodriguez, Helena Ariño, Iker Elosua, Carmen Tur, Angela Vidal‐Jordana, Andreu Vilaseca, Joaquín Castilló, Ingrid Galán, Luciana Midaglia, Carlos Nos, Breogan Rodríguez‐Acevedo, Ana Zabalza, Luca Bollo, Agustín Pappolla, René Carvajal, Neus Mongay‐Ochoa, Jordi Rio, Jaume Sastre‐Garriga, Manuel Comabella, Gesualdina Busiello, Sofia Sceppacuercia, Àlex Rovira, Xavier Montalban, Mar Tintoré, Cristina Auger, Álvaro Cobo‐Calvo   +29 more
wiley   +1 more source

Coordinated orbit transfer for satellite clusters [PDF]

Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2004
Abstract:We propose a control law that allows a satellite formation to achieve orbit transfer. During the transfer, the formation can be either maintained or modified to a desired formation. Based on the orbit transfer control law proposed by Chang, Chichka, and Marsden for single satellite, we add coupling terms to the summation of Lyapunov functions ...
Zhang, Fumin, Krishnaprasad, Perinkulam S.   +1 more
openaire   +4 more sources

Copine‐4 Paraneoplastic Autoimmune Encephalitis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT We characterize copine‐4 (CPNE4)‐IgG and report clinical associations. Among 844 samples with unclassified neural IgGs identified by mouse‐brain indirect immunofluorescence assay over 2 years, 5 samples (serum, 3; CSF, 2) from 3 patients produced a distinctive cerebrum‐restricted synaptic pattern.
Mimi S. Fang, Amy Ml Quek, Clement Yong, Amir Adeli, Gabrielle N. Conway, Connie E. Lesnick, Diana Anissian, Divyanshu Dubey, John R. Mills, Sean J. Pittock, Anastasia Zekeridou, Michael Gilligan, Andrew McKeon   +12 more
wiley   +1 more source

BeiDou Satellites Assistant Determination by Receiving Other GNSS Downlink Signals

International Journal of Antennas and Propagation, 2016
GNSS’s orbit determinations always rely on ground station or intersatellite links (ISL). In the emergency of satellite-to-ground links and ISL break-off, BeiDou navigation satellite system (BDS) satellites cannot determine their orbits. In this paper, we
Lei Chen, Ke Zhang, Xiangwei Zhu, Yangbo Huang, Gang Ou, Huicui Liu   +5 more
doaj   +1 more source

Ontology‐Aligned Structuring and Reuse of Multimodal Materials Data and Workflows Toward Automatic Reproduction

Advanced Engineering Materials, EarlyView.
Reproduction of stacking fault energy calculations from literature with a semi‐automated large language model‐assisted extraction procedure: extraction of simulation protocol, atomistic structures, computational parameters, and reported results, ontology alignment, knowledge graph construction and, finally, recomputation forvalidation.
Sepideh Baghaee Ravari, Abril Azocar Guzman, Sarath Menon, Stefan Sandfeld, Tilmann Hickel, Markus Stricker   +5 more
wiley   +1 more source

Satellite surveillance and the orbital unconscious

New Media & Society, 2023
Satellite data are frequently attached to discourses of infallibility, objectivity and omnipresence. Yet the value of satellite data in everyday society largely depends on the strength of our interpretations, interpretations which are easily misled. Satellite images can be fabricated, misread and restricted, yet companies like Google encourage users to
openaire   +2 more sources

Using Electrodynamic Tethers to Create Artificial Sun-Synchronous Orbits and De-Orbit Remote Sensing Satellites

Universe
This paper has the goal of exploring the potential of electromagnetic propulsion systems based on tethers to create artificial Sun-synchronous orbits for remote sensing satellites, as well as performing station-keeping maneuvers and de-orbiting of the ...
Antonio F. B. A. Prado, Vladimir Razoumny   +1 more
doaj   +1 more source