Results 1 to 10 of about 57,270 (311)
Low vision services in sub-Saharan Africa: a systematic review [PDF]
BackgroundUnderstanding the availability, access, and outcomes of low vision services (LVS) in Sub-Saharan Africa (SSA) is essential to reduce the burden and enhance the quality of life for patients with residual vision.
Kwadwo Owusu Akuffo +11 more
doaj +2 more sources
The giant planets of our Solar System are exotic laboratories, enshrouding keys which can be used to decipher planetary formation mysteries beneath their cloudy veils.
Cody L. Shaw +5 more
doaj +1 more source
Lasers for Satellite Uplinks and Downlinks
The use of Light Amplification by Stimulated Emission of Radiation (i.e., LASERs or lasers) by the U.S. Department of Defense is not new and includes laser weapons guidance, laser-aided measurements, and even lasers as weapons (e.g., Airborne Laser ...
Mark Dmytryszyn +2 more
doaj +1 more source
We present the observations of two type III solar radio events performed with LOFAR (LOw-Frequency ARray) station in Bałdy (PL612), Poland in single mode. The first event occurred on 20th August 2017 and the second one on 9th September 2017.
Bartosz Dabrowski +9 more
doaj +1 more source
Bacterial accumulation of different telescopic crowns: (PEEK) versus Cobalt-Chromium telescopes in implant-supported mandibular overdenture. [PDF]
Purpose: The purpose of this study is to compare bacterial accumulation between telescopic over dentures fabricated by two different materials: PEEK ( Polyetheretherketone) and Cobalt-Chromium copings.
Ahmad Abd El Azeem +2 more
doaj +1 more source
Revealing observatory networks through object stories: Observatory audiences
Like the contributions to the other papers in this collection (‘Object itineraries’ and ‘Instrumental networks’), those in this final section explore instrumental networks and object itineraries in order to tell new histories of observatory sites and ...
Rebekah Higgitt +2 more
doaj +1 more source
Towards an Intelligent Observatory [PDF]
The Intelligent Observatory (IO) refers to the vision of the South African Astronomical Observatory (SAAO) to meet the scientific needs of both the South African and international astronomical communities by providing a better and more efficient service.
STEPHEN B. POTTER
doaj +1 more source
SiTian is an ambitious ground-based all-sky optical monitoring project, developed by the Chinese Academy of Sciences. The concept is an integrated network of dozens of 1-m-class telescopes deployed partly in China and partly at various other sites around
JIFENG LIU +4 more
doaj +2 more sources
Prospects of Searching for Type Ia Supernovae with 2.5-m Wide Field Survey Telescope
Type Ia supernovae (SNe Ia) are thermonuclear explosions of carbon-oxygen white dwarfs (WDs) and are well-known as a distance indicator. However, it is still unclear how WDs increase their mass near the Chandrasekhar limit and how the thermonuclear ...
Maokai Hu +6 more
doaj +1 more source
A study of optical observing techniques for extra-galactic supernova remnants: Case of NGC300 [PDF]
We present the results of a study of observational and identification techniques used for surveys and spectroscopy of candidate supernova remnants (SNRs) in the Sculptor Group galaxy NGC300.
Millar W.C., White G.L., Filipović M.D.
doaj +1 more source

