Results 251 to 260 of about 4,681,024 (311)

Paraneoplastic vitelliform retinopathy successfully treated with intravitreal dexamethasone implants. [PDF]

open access: yesAm J Ophthalmol Case Rep
Natividade MS   +5 more
europepmc   +1 more source

Surveillance of avian influenza viruses in migratory wild birds in South Korea, 2019-2025. [PDF]

open access: yesJ Vet Sci
Lee JK   +13 more
europepmc   +1 more source

Mar

open access: yes, 1981
Roig, Montserrat, 1946-1991, Carlos
openaire   +1 more source
Some of the next articles are maybe not open access.

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Mars exploration

Nature, 2001
An international flotilla of spacecraft are to be sent to Mars over the next decade in an effort to understand the planet's geology and climate history, and to determine whether some form of life ever started there. At least two spacecraft will be sent at each launch opportunity, and at times up to four spacecraft may be operating simultaneously at the
M H, Carr, J, Garvin
openaire   +2 more sources

Mars exploration advances: Missions to Mars - Mars base

30th Aerospace Sciences Meeting and Exhibit, 1992
An overview is presented of Mars missions and related planning with attention given to four mission architectures in the light of significant limitations. Planned unpiloted missions are discussed including the Mars Orbital Mapping Mission, the Mars Rover Sample Return, the Mars Aeronomy Orbiter, and the Mars Environmental Survey.
FRED DEJARNETTE, CHRISTOPHER MCKAY
openaire   +1 more source

Mars hopper versus Mars rover

Acta Astronautica, 2006
Abstract The paper explores the feasibility of using ballistic hopper vehicles with CO2/metal rocket engines instead of rovers in Mars missions. The hopper mission scenario involves several ballistic flights and hence visiting several sites on Mars surface.
Evgeny Shafirovich   +2 more
openaire   +1 more source

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