Results 11 to 20 of about 990,598 (355)

Transit navigation through Northern Sea Route from satellite data and CMIP5 simulations [PDF]

open access: goldEnvironmental Research Letters, 2017
Rapid Arctic sea ice decline over the last few decades opens new perspectives for Arctic marine navigation. Further warming in the Arctic will promote the Northern Sea Route (NSR) as an alternative to the conventional Suez or Panama Canal routes for ...
Vyacheslav C Khon   +2 more
doaj   +3 more sources

Revisiting the Transit Timing and Atmosphere Characterization of the Neptune-mass Planet HAT-P-26 b [PDF]

open access: yesThe Astronomical Journal, 2023
We present a transit-timing variation (TTV) and planetary atmosphere analysis of the Neptune-mass planet HAT-P-26 b. We present a new set of 13 transit light curves from optical ground-based observations and combine them with light curves from the Wide ...
Napaporn A-thano   +13 more
doaj   +2 more sources

Staging 18F-FDG PET/CT influences the treatment plan in melanoma patients with satellite or in-transit metastases

open access: hybridMelanoma research, 2020
Whole-body positron emission tomography/computed tomography (PET/CT) and brain magnetic resonance imaging (MRI) are commonly used to stage patients with palpable lymph node metastases from melanoma, but their role in patients with satellite and/or in ...
Lodewijka H. J. Holtkamp   +10 more
openalex   +2 more sources

Measuring positive public transit accessibility using big transit data

open access: yesGeo-spatial Information Science, 2021
Most of the current existing accessibility measures quantify the potential of reaching desirable opportunities across space and time. Nevertheless, these potential measurements only illustrate the maximum possible accessibility a person can have, which ...
Tong Zhang, Wenyuan Zhang, Zhenxuan He
doaj   +2 more sources

The chemokine receptor CXCR4 regulates satellite cell activation, early expansion, and self-renewal, in response to skeletal muscle injury

open access: yesFrontiers in Cell and Developmental Biology, 2022
Acute skeletal muscle injury is followed by satellite cell activation, proliferation, and differentiation to replace damaged fibers with newly regenerated muscle fibers, processes that involve satellite cell interactions with various niche signals.
Ahmed S. Shams   +17 more
doaj   +2 more sources

A spindle cell squamous cell carcinoma on the cheek presenting with in-transit metastases and a satellite lesion [PDF]

open access: goldArchives of Craniofacial Surgery, 2020
Spindle cell squamous cell carcinoma (SpSCC) is a biphasic tumor composed of squamous cell epithelial and spindle cell mesenchymal components, both of which are malignant.
Eui-Tae Lee
openalex   +2 more sources

Comparison of Results From Transit Satellite Tracking [PDF]

open access: yesAnnals of Glaciology, 1988
Large-scale motions and strain-rates over great distances on polar ice sheets are often obtained from the tracking of Transit (or doppler) satellites. The results of different processing techniques for these tracking data are compared, using some of the data collected on and near Ice Stream C.
James McDonald, Ian M. Whillans
openaire   +3 more sources

TOI-1408: Discovery and Photodynamical Modeling of a Small Inner Companion to a Hot Jupiter Revealed by Transit Timing Variations [PDF]

open access: yesThe Astrophysical Journal Letters
We report the discovery and characterization of a small planet, TOI-1408 c, on a 2.2 day orbit located interior to a previously known hot Jupiter, TOI-1408 b ( P = 4.42 days, M = 1.86 ± 0.02 M _Jup , R = 2.4 ± 0.5 R _Jup ) that exhibits grazing transits.
Judith Korth   +62 more
doaj   +2 more sources

Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data

open access: yesThe Astrophysical Journal Supplement Series
Many hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang   +5 more
doaj   +2 more sources

Navigation Using the Transit of an Artificial Satellite [PDF]

open access: bronzeJournal of Navigation, 1960
F. G. Smith describes (this Journal, 13, 109) a system for determining position from a single observation, probably lasting for a time of the order of a few minutes, of radio transmissions from an artificial Earth satellite. There are in this system two engineering difficulties which I think Dr.
D.H. Shinn
openaire   +2 more sources

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