Results 81 to 90 of about 135,630 (313)

Trajectory and navigation system design for robotic and piloted missions to Mars [PDF]

open access: yes
Future Mars exploration missions, both robotic and piloted, may utilize Earth to Mars transfer trajectories that are significantly different from one another, depending upon the type of mission being flown and the time period during which the flight ...
Matousek, S. E., Thurman, S. W.
core   +1 more source

Mars sample return – a proposed mission campaign whose time is now [PDF]

open access: yes, 2018
The analysis in Earth laboratories of samples that could be returned from Mars is of extremely high interest to the international Mars exploration community.
Beaty, D. W.   +7 more
core  

Anticancer sensitivities and biological characteristics of HCT116 cells resistant to the selective poly(ADP‐ribose) glycohydrolase inhibitor

open access: yesFEBS Open Bio, EarlyView.
We analyzed alterations of PAR metabolism‐related proteins in PARG inhibitor‐resistant HCT116RPDD cells. Although PARG levels remained unchanged, HCT116RPDD cells exhibited reduced PARP1 and ARH3 expression and elevated PAR levels. Interestingly, HCT116RPDD cells exhibited slightly elevated intracellular NAD+/NADH and ATP levels. Our findings suggest a
Kaede Tsuda, Yoko Ogino, Akira Sato
wiley   +1 more source

Planetary geometry handbook: Mars positional data, 1990 - 2020, volume 3 [PDF]

open access: yes
Graphical data necessary for the analysis of planetary exploration missions to Mars are presented. Positional and geometric information spanning the time period from 1990 through 2020 is provided.
Cunniff, R. A.   +3 more
core   +1 more source

Robotic Exploration of Moon and Mars: Thematic Education Approach [PDF]

open access: yes, 2008
Safe, sustained, affordable human and robotic exploration of the Moon, Mars, and beyond is a major NASA goal. Robotic exploration of the Moon and Mars will help pave the way for an expanded human presence in our solar system.
Allen, J S.   +3 more
core   +1 more source

The role of lipid metabolism in neuronal senescence

open access: yesFEBS Open Bio, EarlyView.
Disrupted lipid metabolism, through alterations in lipid species or lipid droplet accumulation, can drive neuronal senescence. However, lipid dyshomeostasis can also occur alongside neuronal senescence, further amplifying tissue damage. Delineating how lipid‐induced senescence emerges in neurons and glial cells, and how it contributes to ageing and ...
Dikaia Tsagkari   +2 more
wiley   +1 more source

The new Athena alpha particle X‐ray spectrometer for the Mars Exploration Rovers [PDF]

open access: bronze, 2003
R. Rieder   +6 more
openalex   +1 more source

Enhancing Oncological Care for India's Aging Population: Addressing the Complex Needs of Older Adults With Cancer

open access: yesAging and Cancer, EarlyView.
Aging‐associated physiological and molecular alterations pose significant challenges in cancer management among India's elderly. Limited geriatric oncology expertise, financial constraints, and inadequate specialized care exacerbate disparities. Strategic expansion of insurance coverage, integration of palliative care, and infrastructural advancements ...
Nihanthy D. Sreenath   +3 more
wiley   +1 more source

Recent Efforts Enabling Martian Rotorcraft Missions [PDF]

open access: yes
The Mars Helicopter (MH), launching as a part of the Mars 2020 mission, will begin a new era of planetary exploration. Mars research has historically been conducted through landers, rovers, and satellites.
Johnson, Wayne R.   +3 more
core   +1 more source

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