Results 61 to 70 of about 4,369,846 (398)

Luminous [O III] and [N II] from Tidally Disrupted Horizontal Branch Stars

, 2012
We model the emission lines generated in the photoionised debris of a tidally disrupted horizontal branch star. We find that at late times, the brightest optical emission lines are [N II] \lambda\lambda 6548,6583 and [O III] \lambda\lambda 4959,5007 ...
Barnard, Baumgardt, Behr, Belczynski, Bogdanović, Brassington, Brodie, Charbonnel, Charpinet, Clausen, Colbert, Croton, Dalessandro, Davies, Dorman, Dotter, Drew Clausen, Ferland, Frank, Gratton, Gratton, Heggie, Hills, Irwin, Ivanova, Jimmy A. Irwin, Kundu, Lacy, Lee, Maccarone, Maccarone, Maccarone, Maccarone, Maccarone, Michael Eracleous, Paxton, Peacock, Porter, Ramirez-Ruiz, Rees, Rey, Ripamonti, Roos, Sandage, Sarazin, Searle, Shih, Sigurdsson, Sigurdsson, Sigurdsson, Steinn Sigurdsson, Strubbe, Strubbe, Tautvaišienė, van den Bergh, van Grootel, Zepf   +56 more
core   +1 more source

An efficient strategy for producing RNA‐free Nucleocapsid protein of SARS‐CoV‐2 for biochemical and structural investigations

FEBS Open Bio, EarlyView.
Cleavable N‐terminal Thioredoxin fusion enabled soluble expression and purification of otherwise insoluble SARS‐CoV‐2 Nucleocapsid (N) protein. A four‐step purification strategy yielded highly homogeneous, RNA‐free N protein. Binding assays showed high RNA affinity (Kd ~ 28 nm). The study will facilitate high‐resolution structural studies of N protein,
Shweta Singh, Gagan D. Gupta
wiley   +1 more source

Validating a novel angular power spectrum estimator using simulated low frequency radio-interferometric data

, 2017
The "Tapered Gridded Estimator" (TGE) is a novel way to directly estimate the angular power spectrum from radio-interferometric visibility data that reduces the computation by efficiently gridding the data, consistently removes the noise bias, and ...
Ali, Sk. Saiyad, Bharadwaj, Somnath, Choudhuri, Samir, Dutta, Prasun, Ghosh, Abhik, Roy, Nirupam   +5 more
core   +1 more source

The Hard VHE Gamma-ray Emission in High-Redshift TeV Blazars: Comptonization of Cosmic Microwave Background Radiation in an Extended Jet? [PDF]

, 2008
Observations of very-high-energy (VHE, E > 250 GeV) gamma-ray emission from several blazars at z > 0.1 have placed stringent constraints on the elusive spectrum and intensity of the intergalactic infrared background radiation (IIBR).
Aharonian, Aharonian, Albert, Atoyan, Böttcher, Błażejowski, Charles D. Dermer, Dermer, Dwek, Finke, Justin D. Finke, Katarzyński, Markus Böttcher, Rieger, Sambruna, Schwartz, Sikora, Sikora, Stawarz, Stecker, Stecker, Stecker, Stecker, Tavecchio, Teshima, Virtanen, Wolter   +26 more
core   +1 more source

Exploring if Longitudinal Changes on PET Imaging Can Serve as a Biomarker for Stiff Person Syndrome Spectrum Disorders

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To identify metabolic patterns in the brain and musculoskeletal system of stiff person syndrome spectrum disorders (SPSD) patients over time using PET imaging and evaluate the impact of immune therapy on metabolic activity as a surrogate for treatment response.
Munther M. Queisi, Samantha N. Roman, Mohammad S. Sadaghiani, Lilja B. Solnes, Scott D. Newsome   +4 more
wiley   +1 more source

A STUDY ON FATIGUE DAMAGE IDENTIFICATION METHOD OF A BLADE COMPOSITE LAMINATE WITH DELAMINATION DEFECTS (MT)

Jixie qiangdu, 2022
Acoustic emission technique can monitor the fatigue damage state of composite materials in real time. The identification accuracy of damage state depends on the processing and extraction of acoustic emission signals.
YU FangAi, ZHOU Bo, ZHANG XueYan, XIN Wen   +3 more
doaj  

The Perils of Clumpfind: The Mass Spectrum of Sub-structures in Molecular Clouds [PDF]

, 2009
We study the mass spectrum of sub-structures in the Perseus Molecular Cloud Complex traced by 13CO (1-0), finding that $dN/dM\propto M^{-2.4}$ for the standard Clumpfind parameters.
Alyssa A. Goodman, Blitz, Cambrésy, Clauset, Enoch, Erik W. Rosolowsky, Ikeda, Jaime E. Pineda, Johnstone, Kirk, Kramer, Li, Motte, Muench, Muñoz, Ossenkopf, Pineda, Rathborne, Reid, Reid, Reid, Ridge, Rosolowsky, Walsh   +23 more
core   +2 more sources

NOTCH2NLC Repeat Expansions in Parkinsonian Disorders: Clinical and Neuroimaging Characteristics

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuronal intranuclear inclusion disease (NIID) is a neurodegenerative disorder caused by NOTCH2NLC GGC repeat expansions, with heterogeneous clinical manifestations, including parkinsonism. Recent studies have identified NOTCH2NLC repeat expansions in patients with Parkinson's disease (PD) and atypical parkinsonism (aPM), suggesting ...
Han‐Lin Chiang, Kang‐Yang Jih, Cheng‐Tsung Hsiao, Fu‐Pang Chang, Justus Chunyu Chen, Yi‐Chu Liao, Yih‐Ru Wu, Yi‐Chung Lee   +7 more
wiley   +1 more source

Observation of Fano line shape in directional fluorescence emission mediated by coupled planar waveguide modes and interpretation based on Lorentz reciprocity

AIP Advances, 2020
Using a reverse attenuated-total-reflection geometry, we measured angle-scan fluorescence emission spectra of all-dielectric multilayer samples containing a waveguide layer doped with fluorescent dye molecules (fluorescent waveguide layer).
Byungjun Kang, Kengo Motokura, Minoru Fujii, Dmitry V. Nesterenko, Zouheir Sekkat, Shinji Hayashi   +5 more
doaj   +1 more source

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez, Corinne Pettigrew, Yuxin Zhu, Claire Anderson, Guray Erus, Christos Davatzikos, Michael Miller, Abhay Moghekar, Sungtaek Oh, Chan‐Hyun Na, Marilyn Albert, Paul Worley, Anja Soldan   +12 more
wiley   +1 more source