Results 31 to 40 of about 154,266 (330)

Mars: The Next Steps [PDF]

open access: yes, 2000
In 1993, the National Aeronautics and Space Administration (NASA) began the Mars Surveyor program to fly small, focused missions to Mars at every launch opportunity (2-year intervals) using the “faster, better, cheaper” approach championed by ...
Gaidos, Eric J., Richardson, Mark I.
core   +1 more source

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

open access: yesFEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke   +2 more
wiley   +1 more source

Toward Specification-Guided Active Mars Exploration for Cooperative Robot Teams

open access: yesRobotics: Science and Systems, 2018
As a step towards achieving autonomy in space exploration missions, we consider a cooperative robotics system consisting of a copter and a rover. The goal of the copter is to explore an unknown environment so as to maximize knowledge about a science ...
Petter Nilsson   +7 more
semanticscholar   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Mapping “Brain Terrain” Regions on Mars Using Deep Learning

open access: yesThe Planetary Science Journal
One of the main objectives of the Mars Exploration Program is to search for evidence of past or current life on the planet. To achieve this, Mars exploration has been focusing on regions that may have liquid or frozen water.
Kyle A. Pearson   +4 more
doaj   +1 more source

A Vision for the Exploration of Mars: Robotic Precursors Followed by Humans to Mars Orbit in 2033 [PDF]

open access: yes, 2012
The reformulation of the Mars program gives NASA a rare opportunity to deliver a credible vision in which humans, robots, and advancements in information technology combine to open the deep space frontier to Mars.
Amato, Michael J.   +4 more
core   +1 more source

Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation

open access: yesFEBS Letters, EarlyView.
The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt   +8 more
wiley   +1 more source

Multi-criteria Overlay Analysis for Identifying Preferred Exploration Zones on Mars

open access: yesThe Planetary Science Journal
Selecting sites for future human and robotic missions to Mars requires the integration of diverse data sets. A variety of global data sets have been exploited, including geological, mineralogical, and topographical.
Yousef Mashal   +3 more
doaj   +1 more source

Circulating histones as clinical biomarkers in critically ill conditions

open access: yesFEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez   +17 more
wiley   +1 more source

Multi-System Adaptation to Confinement During the 180-Day Controlled Ecological Life Support System (CELSS) Experiment

open access: yesFrontiers in Physiology, 2019
Confinement experiments are essential to prepare long-term space exploration. The 180-day Chinese CELSS (Controlled Ecological Life Support System) study is unique in its design, including a closed-loop system and mid-mission simulation of Mars-like day ...
Ming Yuan   +17 more
doaj   +1 more source

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