Results 71 to 80 of about 48,097 (289)

Central Masses and Broad-Line Region Sizes of Active Galactic Nuclei: I. Comparing the Photoionization and Reverberation Techniques

, 1999
The masses and emission-line region sizes of Active Galactic Nuclei (AGNs) can be measured by ``reverberation-mapping'' (measuring the lag of the emission-line luminosity after changes in the continuum). We use tis technique to calibrate similar size and
A. Wandel, Alloin D., B. M. Peterson, Boller Th., Laor A., M. A. Malkan, Rokaki E., Rokaki E., Wandel A.   +8 more
core   +2 more sources

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji, Jianlong Zhang, Yiming Shi, Shiyu Shan, Yang Du, Guangshuo Li, Ying Jin, Yani Zhang, Chuanying Wang, Yijun Lin, Yuhao Guo, Decai Tian, Xingquan Zhao, Tian Song   +13 more
wiley   +1 more source

Speech Recognition in an Enclosure with a Long Reverberation Time

Archives of Acoustics, 2016
The aim of this work was to measure subjective speech intelligibility in an enclosure with a long reverberation time and comparison of these results with objective parameters.
Jedrzej KOCINSKI, Edward OZIMEK
doaj   +1 more source

Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt, Eya Khadhraoui, Sebastian J. Müller, Katja Neumann, Hendrik Mattern, Sven G. Meuth, Valentina Perosa, Andreas Charidimou, Stefanie Schreiber   +8 more
wiley   +1 more source

X-Ray/UVOIR Frequency-resolved Time Lag Analysis of Mrk 335 Reveals Accretion Disk Reprocessing

The Astrophysical Journal, 2023
UV and optical continuum reverberation mapping is a powerful tool for probing the accretion disk and inner broad-line region. However, recent reverberation mapping campaigns in the X-ray, UV, and optical have found lags consistently longer than those ...
Collin Lewin, Erin Kara, Edward M. Cackett, Dan Wilkins, Christos Panagiotou, Javier A. García, Jonathan Gelbord   +6 more
doaj   +1 more source

A unified convolutional beamformer for simultaneous denoising and dereverberation

, 2019
This paper proposes a method for estimating a convolutional beamformer that can perform denoising and dereverberation simultaneously in an optimal way.
Kinoshita, Keisuke, Nakatani, Tomohiro
core   +1 more source

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel, Timothy P. Siejka, Cassandra Marotta, Josh J. Y. Lee, Kelly Bertram, Terence J. O'Brien, Meng Law, Lucy Vivash, Ian H. Harding   +8 more
wiley   +1 more source

ANALYSIS OF ACOUSTIC FIELD DIFFUSIVITY FOR THE DETERMINATION OF THE SOUND ABSORPTION COEFFICIENT IN A REVERBERATION CHAMBER

Anales (Asociación Física Argentina)
The Laboratory of Acoustics and Vibrations of INTI is fine-tuning a system for determining the sound absorption coefficient in a reverberation chamber using the interrupted noise method following the guidelines of IRAM 4065:2019. The study focuses on two
F. Fernandez Criscuolo, F.A. Serrano, L. del Valle Álvarez, J. García Skabar   +3 more
doaj   +1 more source

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Inner Size of a Dust Torus in the Seyfert 1 Galaxy NGC 4151

, 2003
The most intense monitoring observations yet made were carried out on the Seyfert 1 galaxy NGC 4151 in the optical and near-infrared wave-bands. A lag from the optical light curve to the near-infrared light curve was measured.
Antonucci R., Baribaud T., Bruce A. Peterson, Clavel J., Glass I. S., Hiroyuki Tomita, Keigo Enya, Kotilainen J. K., Masahiro Suganuma, Oknyanskij V. L., Oknyanskij V. L., Oknyanskij V. L., Takeo Minezaki, Tsutomu Aoki, Ulrich M.-H., Winkler H., Winkler H., Yoshii Y., Yukiyasu Kobayashi, Yuzuru Yoshii   +19 more
core   +1 more source