Results 111 to 120 of about 109,158 (297)

Sex‐Stratified Association of Regional Dopamine Transporter Binding With Disease Progression in Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To clarify the clinical relevance of dopamine transporter single‐photon emission computed tomography (DAT‐SPECT) abnormalities in amyotrophic lateral sclerosis (ALS), with a prespecified focus on sex‐stratified associations with disease progression and short‐term prognosis.
Tomoya Kawazoe, Keizo Sugaya, Kentaro Hayashi, Keiko Hino, Yasuhiro Nakata, Kota Bokuda, Toshio Shimizu, Kazushi Takahashi   +7 more
wiley   +1 more source

Ultraviolet spectroscopy reveals a hot and luminous companion to the Be star+black hole candidate MWC 656

Astronomy & Astrophysics
The Galactic Be star binary MWC 656 was long considered the only known Be star+black hole (BH) system, making it a critical benchmark for models of massive binary evolution and for the expected X-ray emission of Be+BH binaries.
Müller-Horn Johanna, Ramachandran Varsha, El-Badry Kareem, Sander Andreas A. C., Bodensteiner Julia, Gies Douglas R., Götberg Ylva, Rivinius Thomas, Shenar Tomer, Schösser Elisa C., Wang Luqian, Bieryla Allyson, Buchhave Lars A., Latham David W.   +13 more
doaj   +1 more source

Accurate Mass Measurements for Planetary Microlensing Events Using High Angular Resolution Observations

Universe, 2018
The microlensing technique is a unique method to hunt for cold planets over a range of mass and separation, orbiting all varieties of host stars in the disk of our galaxy.
Jean-Philippe Beaulieu
doaj   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

Synchrotron high angular resolution microdiffraction analysis of selective area grown optoelectronic waveguide arrays [PDF]

, 2006
A synchrotron microbeam high-angular resolution diffraction setup based on a phase zone plate and a perfect Si(004) analyzer crystal was introduced to generate an x-ray microbeam with a lateral size of 0.24 νm and an angular resolution of 2 arcsec.
Bilderback, D. H., Ougazzaden, A., Huang, R., Kazimirov, A., Cai, Z. H., Sirenko, A. A., Lai, B.   +6 more
core   +1 more source

Millimetre-wave imaging with reduced number of degrees of freedom in array signal processing: concepts for enhanced angular resolution [PDF]

Advances in Radio Science, 2003
This paper deals with millimetre-wave imaging systems based on linear receiving arrays and is focused on the issue of angular resolution and coverage for arrays where the number M of ports is smaller than the number N of elements due to forming of ...
G. Kotyrba, H. Chaloupka
doaj  

Integrated PANoptosis Profiling Identifies Immunosuppressive Subtypes and a Prognostic Signature With Functional Validation of MLKL in Glioblastoma

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The prognosis of glioblastoma (GBM) remains highly unfavorable, largely due to high tumor heterogeneity and an immunosuppressive microenvironment. However, the functional role of PANoptosis in this context is poorly understood. Methods Patients were stratified via K‐means clustering. A risk score model was constructed using prognosis‐
Langfei Tian, Minghui Zhao, Yuanbo Hu, Kaiyue Wang, Haiguang Liu, Zetong Bai, Kebin Zheng   +6 more
wiley   +1 more source

HIGH RESOLUTION PLANE ANGULAR MEASUREMENT SYSTEM: REALISATION AND ERROR EVALUATION [PDF]

, 2010
An high resolution angular measurement system, based on an indirect time measuring to detect the angular value, is designed and realised. In the paper the basic principle is referred and the logical scheme of the device is discussed.
RICCIU, ROBERTO, Ricciu R., Manuello Bertetto A., MANUELLO BERTETTO, ANDREA   +3 more
core  

The making of robust and highly performing imaging spectropolarimeters for large solar telescopes

Astronomy & Astrophysics
We discuss the requirements, concepts, simulations, implementation, and calibration of two dual Fabry-Perot (FPI)-based imaging spectropolarimeters, CRISP and CHROMIS, at the Swedish 1-m Solar Telescope, and CRISP2, which is under construction.
Scharmer G. B., de la Cruz Rodríguez J., Leenaarts J., Lindberg B., Sütterlin P., Hillberg T., Pietraszewski C., de Wijn A. G., Foster M., Storey J.   +9 more
doaj   +1 more source

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay, Merve Alaylioglu, Erdi Sahin, Sanem Sultan Yoruk Oner, Gulce Iskan, Gulce Cosku Yilmaz Cakan, Gozde Kizilates‐Evin, Emre Hari, Elif Kurt, Erdinc Dursun, Basar Bilgic, Hasmet Hanagasi, Hakan Gurvit, Tamer Demiralp, Duygu Gezen‐Ak, Bedia Samanci   +15 more
wiley   +1 more source