Results 71 to 80 of about 980,269 (324)

EMMI - Electric Solar Wind Sail Facilitated Manned Mars Initiative [PDF]

open access: yes, 2015
The novel propellantless electric solar wind sail concept promises efficient low thrust transportation in the Solar System outside Earth's magnetosphere.
Janhunen, Pekka   +2 more
core   +1 more source

Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms

open access: yesFEBS Letters, EarlyView.
Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze   +3 more
wiley   +1 more source

Recent investigations of the near-Mars space environment by the planetary aeronomy and space physics community in China

open access: yesEarth and Planetary Physics, 2020
The present issue of Earth and Planetary Physics is dedicated to the near-space neutral and plasma environments of Mars. The issue includes nine papers that present new results on the properties of the Martian exosphere, ionosphere, and magnetosphere ...
Jun Cui   +3 more
doaj   +1 more source

On the Penrose inequality for dust null shells in the Minkowski spacetime of arbitrary dimension

open access: yes, 2012
A particular, yet relevant, particular case of the Penrose inequality involves null shells propagating in the Minkowski spacetime. Despite previous claims in the literature, the validity of this inequality remains open.
Mars, Marc, Soria, Alberto
core   +1 more source

Mars 2000 [PDF]

open access: yes, 2000
Twenty years after the Viking Mission, Mars is again being scrutinized in the light of a flood of information from spacecraft missions to Mars, the Hubble Space Telescope, and the SNC meteorites.
Albee, Arden L.
core   +1 more source

The power of microRNA regulation—insights into immunity and metabolism

open access: yesFEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto   +2 more
wiley   +1 more source

Photoelectron pitch angle distribution near Mars and implications on cross terminator magnetic field connectivity

open access: yesEarth and Planetary Physics, 2020
The photoelectron peak at 22–27 eV, a distinctive feature of the energetic electron distribution in the dayside Martian ionosphere, is a useful diagnostic of solar extreme ultraviolet (EUV) and X-ray ionization as well as of large-scale transport along ...
YuTian Cao   +3 more
doaj   +1 more source

Identification of novel small molecule inhibitors of ETS transcription factors

open access: yesFEBS Letters, EarlyView.
ETS transcription factors play an essential role in tumourigenesis and are indispensable for sprouting angiogenesis, a hallmark of cancer, which fuels tumour expansion and dissemination. Thus, targeting ETS transcription factor function could represent an effective, multifaceted strategy to block tumour growth. The evolutionarily conserved E‐Twenty‐Six
Shaima Abdalla   +9 more
wiley   +1 more source

Life on Mars? [PDF]

open access: yesCurrent Biology, 1996
Usually it takes a juicy sex scandal, a military invasion, or an airlinear crash to get a story on page one of the newspapers two days in a row. But science reporters across the United States managed this feat in early August, when NASA scientists announced that they'd found “compelling evidence” of fossilized life from Mars.
openaire   +3 more sources

Home - About - Disclaimer - Privacy