Results 51 to 60 of about 82,612 (293)
Digital Assistant for Arrival Scheduling with Conflict Prevention Capabilities
Information, 2023 Nowadays, in view of the growing traffic volume, an appropriate aircraft sequencing in the arrival sector is needed to maintain safety levels and improve the performance of the runway system and flight times.
Francesco Nebula +3 more
doaj +1 more source
Photograph of the Nebula in Orion [PDF]
Nature, 1880 DURING the night of September 30 I succeeded in photographing the bright part of the nebula in Orion in the vicinity of the trapezium. The photographs show the mottled appearance of this region distinctly. I intend shortly to publish a detailed description of the negatives. They were taken by the aid of a triple objective of eleven inches aperture made
openaire +6 more sources
PHL 932: When Is a Planetary Nebula Not a Planetary Nebula? [PDF]
Publications of the Astronomical Society of Australia, 2010 AbstractThe emission nebula around the subdwarf B (sdB) star PHL 932 is currently classified as a planetary nebula (PN) in the literature. Based on a large body of multi-wavelength data, both new and previously published, we show here that this low-excitation nebula is in fact a small Strömgren sphere (Hii region) in the interstellar medium around this
Parker, Quentin A. +3 more
openaire +5 more sources
The Effect of Seductive Details on Knowledge Retention in Physics Videos: A Mixed Methods Study
Journal of Research in Science Teaching, EarlyView.ABSTRACT Research reports that interesting but irrelevant information, seductive details, in teaching material can impede learning. In science education, the inclusion of historical narratives in lessons to promote interest has been recommended but may hinder learning.
Richard Brock +2 more
wiley +1 more source
The Astrophysical JournalPolarization measurements provide insight into the magnetic field, a critical aspect of the dynamics and emission properties around the compact object.
Wei Deng +7 more
doaj +1 more source
Panchromatic HST/WFC3 Imaging Studies of Young, Rapidly Evolving Planetary Nebulae. II. NGC 7027
The Astrophysical Journal, 2022 The iconic planetary nebula (PN) NGC 7027 is bright, nearby ( D ∼ 1 kpc), highly ionized, intricately structured, and well observed. This nebula is hence an ideal case study for understanding PN shaping and evolution processes.
Paula Moraga Baez +4 more
doaj +1 more source
Disrupting Pedagogies: Translating Disrupting Into Instructional Strategies
New Directions for Teaching and Learning, EarlyView.ABSTRACT This chapter demonstrates the possibilities when a Disrupting the Disciplines framework is used alongside the Decoding the Disciplines framework to directly address teaching bottlenecks related to racism, colonialism, and implicit bias. It describes the benefits of Disrupting interviews for exploring bottlenecks in classroom instructional ...
Joan Middendorf +3 more
wiley +1 more source
Studies of NGC 6720 with Calibrated HST WFC3 Emission-Line Filter Images--III:Tangential Motions using AstroDrizzle Images [PDF]
, 2013 We have been able to compare with astrometric precision AstroDrizzle processed images of NGC 6720 (the Ring Nebula) made using two cameras on the Hubble Space Telescope. The time difference of the observations was 12.925 yrs. This large time-base allowed
Ferland, G. J. +3 more
core +3 more sources
Circumstellar Disk Accretion Across the Lagoon Nebula: The Influence of Environment and Stellar Mass
The Astronomical JournalPre-main-sequence disk accretion is pivotal for determining the final stellar properties and the early conditions for close-in planets. We aim to establish the impact of internal (stellar mass) and external (radiation field) parameters on the disk ...
Laura Venuti +11 more
doaj +1 more source