Results 101 to 110 of about 140,234 (311)

Modern mechanisms make manless Martian mission mobile: Spin-off spells stairclimbing self-sufficiency for earthbound handicapped [PDF]

open access: yes, 1975
Concepts were developed for three wheel chairs from progressively improving designs of a proposed unmanned roving vehicle for the surface exploration of Mars; as a spin-off, a concept for a stair-climbing wheel chair was generated.
Hassel, D. R.   +2 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

AirFormer: Learning-Based Object Detection for Mars Helicopter

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In future multiagent Mars detection schemes, the Mars helicopter can assist the scientific missions of Mars rovers by providing navigation information and scientific objects.
Yifan Qi   +5 more
doaj   +1 more source

Mini-rovers for Mars explorations [PDF]

open access: yes
Rovers are desirable for surface exploration because they allow sampling, and sample returns from several diverse locations on a planet's surface. Unfortunately, the rovers currently being examined for Mars exploration have several undesirable features ...
Miller, David P.
core   +1 more source

Somatic mutational landscape in von Hippel–Lindau familial hemangioblastoma

open access: yesMolecular Oncology, EarlyView.
The causes of central nervous system (CNS) hemangioblastoma in Von Hippel–Lindau (vHL) disease are unclear. We used Whole Exome Sequencing (WES) on familial hemangioblastoma to investigate events that underlie tumor development. Our findings suggest that VHL loss creates a permissive environment for tumor formation, while additional alterations ...
Maja Dembic   +5 more
wiley   +1 more source

Overview and idea of the Mars UAV experimental platform development

open access: yesHangkong gongcheng jinzhan
The Mars surface is rugged and its environment is complex, the Mars UAVs provide a new idea for Mars exploration due to its high mobility and flexibility, and is an important paradigm for future deep space exploration.The differences between Mars and ...
TAN Liyan, MAO Yijun
doaj   +1 more source

Raman spectroscopic peculiarities of Icelandic poorly crystalline minerals and their implications for Mars exploration. [PDF]

open access: yesSci Rep, 2022
Muñoz-Iglesias V   +5 more
europepmc   +1 more source

Planetary science questions for the manned exploration of Mars [PDF]

open access: yes
A major goal of a manned Mars mission is to explore the planet and to investigate scientific questions for which the intensive study of Mars is essential. The systematic exploration of planets was outlined by the National Academy of Science.
Blanchard, Douglas P.
core   +1 more source

Establishment of a humanized patient‐derived xenograft mouse model of high‐grade serous ovarian cancer for preclinical evaluation of combination immunotherapy

open access: yesMolecular Oncology, EarlyView.
We have established a humanized orthotopic patient‐derived xenograft (Hu‐oPDX) mouse model of high‐grade serous ovarian cancer (HGSOC) that recapitulates human tumor–immune interactions. Using combined anti‐PD‐L1/anti‐CD73 immunotherapy, we demonstrate the model's improved biological relevance and enhanced translational value for preclinical ...
Luka Tandaric   +10 more
wiley   +1 more source

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