Results 51 to 60 of about 73,488 (203)

Employing Blockchain, NFTs, and Digital Certificates for Unparalleled Authenticity and Data Protection in Source Code: A Systematic Review

Computers
In higher education, especially in programming-intensive fields like computer science, safeguarding students’ source code is crucial to prevent theft that could impact learning and future careers.
Leonardo Juan Ramirez Lopez, Genesis Gabriela Morillo Ledezma   +1 more
doaj   +1 more source

Expert aggregation for financial forecasting

Journal of Finance and Data Science, 2023
Machine learning algorithms dedicated to financial time series forecasting have gained a lot of interest. But choosing between several algorithms can be challenging, as their estimation accuracy may be unstable over time.
Carl Remlinger, Clémence Alasseur, Marie Brière, Joseph Mikael   +3 more
doaj   +1 more source

General Formulation for the Calibration and Characterization of Narrow-gap Etalons: the OSIRIS/GTC Tunable Filters Case

, 2014
Tunable filters are a powerful way of implementing narrow-band imaging mode over wide wavelength ranges, without the need of purchasing a large number of narrow-band filters covering all strong emission or absorption lines at any redshift.
Cepa, J., Gonzalez, J. J., Gonzalez-Serrano, J. I., Sanchez-Portal, M.   +3 more
core   +1 more source

The Stellar Content of Obscured Galactic Giant H II Regions: II. W42 [PDF]

, 2000
We present near infrared J, H, and K images and K-band spectroscopy in the giant HII region W42. A massive star cluster is revealed; the color-color plot and K-band spectroscopic morphology of two of the brighter objects suggest the presence of young ...
Blum, R. D., Conti, P. S., Damineli, A.
core   +3 more sources

Thin‐Wall Single‐Crystal Gold Nanoelectrodes toward Advanced Chemical Probing and Imaging

Small, EarlyView.
We present a template‐assisted, non‐self‐limited polyol‐based growth strategy that realizes single‐crystalline, thin‐walled Au UMEs/NEs, as well as multifunctional probes, with high yield (>80%). The method provides precise control over electrode dimensions, from sub‐100 nm to micron‐scale radii and reliably produces long, continuous single‐crystal ...
Milad Sabzehparvar, Fatemeh Kiani, Germán García Martínez, Omer Can Karaman, Victor Boureau, Lucie Navratilova, Giulia Tagliabue   +6 more
wiley   +1 more source

Model‐Based Systems Engineering in Space Applications: A Comprehensive Literature Review

Systems Engineering, EarlyView.
ABSTRACT The growing complexity of space engineering is driving the demand to embrace the adoption of Model‐Based Systems Engineering (MBSE). Although the MBSE is well‐practiced in the space industry, the level of effort and need required to obtain the benefits of MBSE vastly differ across enterprises; this disparity presents a significant challenge to
Rehobot Bekele Buruso, Sara Himmiche, Taiwo Tejumola, Yeshirun Alemayehu, Bertrand Rose   +4 more
wiley   +1 more source

Molecule mapping of HR8799b using OSIRIS on Keck: Strong detection of water and carbon monoxide, but no methane

, 2018
Context. In 2015, Barman et al. (ApJ, 804, 61) presented detections of absorption from water, carbon monoxide, and methane in the atmosphere of the directly imaged exoplanet HR8799b using integral field spectroscopy (IFS) with OSIRIS on the Keck II ...
de la Roche, D. J. M. Petit dit, Hoeijmakers, H. J., Snellen, I. A. G.   +2 more
core   +1 more source

A Substellar Common Proper Motion Companion to the Pleiad HII 1348 [PDF]

, 2011
We announce the identification of a proper motion companion to the star HII 1348, a K5V member of the Pleiades open cluster. The existence of a faint point source 1.1arcsec away from HII 1348 was previously known from adaptive optics imaging by Bouvier ...
Alfonse Pham, Baraffe, Bouvier, Bouvier, Bouy, Burrows, Chabrier, Close, Close, Cushing, Dahn, Faherty, Golimowski, Hartkopf, James E. Larkin, Kerstin Geißler, Kirkpatrick, Lafrenière, Leggett, Lynne A. Hillenbrand, Marois, Martín, Martín, McElwain, Mermilliod, Metchev, Metchev, Metchev, Metchev, Meynet, Michael McElwain, Queloz, Rayner, Rebolo, Rodriguez, Stanimir A. Metchev, Stauffer, Steele, Zakhozhaj   +38 more
core   +3 more sources

‘Mere Amateurs’? Elementary Teachers and the Making of Scientific Authority in the British Child Study Movement

History, EarlyView.
Abstract This article offers new perspectives on the relationship between elementary teaching, scientific expertise and the professionalization of the human sciences. Previous scholarship has demonstrated the ready existence of ‘amateur’ science societies in the nineteenth century where cross‐class exchanges were common.
Julia Gustavsson
wiley   +1 more source

Parallaxes of southern extremely cool objects (PARSEC). II : Spectroscopic follow-up and parallaxes of 52 targets [PDF]

, 2013
We present near-infrared spectroscopy for 52 ultracool dwarfs, including two newly discovered late-M dwarfs, one new late-M subdwarf candidate, three new L, and four new T dwarfs. We also present parallaxes and proper motions for 21 of them.
A. C. Day-Jones, A. H. Andrei, A. Sozzetti, Allard, Andrei, B. Bucciarelli, Bakos, Baraffe, Barman, Bouy, Burgasser, Burgasser, Burgasser, Burrows, Burrows, Burrows, Cruz, Cruz, Cruz, Cushing, D. J. Pinfield, Dupuy, Dupuy, Epchtein, F. Marocco, Faherty, Faherty, Fan, Finch, Gizis, Goldman, Golimowski, H. R. A. Jones, Hawley, J. L. Penna, J. R. A. Clarke, Kirkpatrick, Kirkpatrick, Kirkpatrick, Kirkpatrick, Kirkpatrick, Kirkpatrick, Knapp, Kurucz, Leggett, Liebert, Looper, Looper, Lépine, Marley, Nielsen, Nissen, P. W. Lucas, R. L. Smart, Reid, Reid, Reid, Rojas-Ayala, Saumon, Schmidt, Seifahrt, Skemer, Skrutskie, Stephens, Tokunaga, Wright, York   +66 more
core   +2 more sources