Results 61 to 70 of about 1,666,454 (346)

Dispelling the myth of robotic efficiency: why human space exploration will tell us more about the Solar System than will robotic exploration alone

, 2012
There is a widely held view in the astronomical community that unmanned robotic space vehicles are, and will always be, more efficient explorers of planetary surfaces than astronauts (e.g. Coates, 2001; Clements 2009; Rees 2011).
Beattie, Clements, Coates, Cockell, Crawford, Crawford, Garvin, I A Crawford, Leone, Lester, NRC, Orloff, Rees, Snook, Spudis, Squyres, Turner, Wilhelms, Wilson   +18 more
core   +1 more source

Space Exploration via Proximity Search [PDF]

, 2014
We investigate what computational tasks can be performed on a point set in $\Re^d$, if we are only given black-box access to it via nearest-neighbor search.
Har-Peled, Sariel, Kumar, Nirman, Mount, David M., Raichel, Benjamin   +3 more
core   +2 more sources

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source

Discoveries from space exploration [PDF]

, 1964
Space science contributions in astrophysics, geodesy, geology, meteorology, and ...
Jastrow, R.
core   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

Simulation Analysis of Inverting Marine Vertical Deflection Using Spaceborne GNSS-R Interferometric Altimetry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Global marine vertical deflection is essential for understanding Earth's internal mass and density distribution and improving the long-term inertial navigation accuracy of underwater vehicles.
Lichang Duan, Junming Xia, Weihua Bai, Zhenhe Zhai, Feixiong Huang, Cong Yin, Yueqiang Sun, Qifei Du, Dongwei Wang, Xianyi Wang, Yixuan Sun, Shengyu Kang, Guanyi Wang, Xiaofeng Meng, Yunlong Du   +14 more
doaj   +1 more source

Effect of Tilted Misalignment on Tribo-Characteristics of High-Speed Ball Bearings in Liquid Hydrogen

Tribology Online, 2010
When radial load applied to the bearings was high, ball excursion occurring in the retainer ball-pockets became large due to ball-speed-variation (BSV). Such BSV was also caused by inclination of the outer race to the shaft (tilted misalignment).
Masataka Nosaka, Satoshi Takada, Makoto Yoshida, Masataka Kikuchi, Takayuki Sudo, Shohei Nakamura   +5 more
doaj   +1 more source

Developing Experimental Models for NASA Missions with ASSL

, 2010
NASA's new age of space exploration augurs great promise for deep space exploration missions whereby spacecraft should be independent, autonomous, and smart.
Hinchey, Mike, Vassev, Emil
core   +2 more sources

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

Molecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang, Qian Sun, Daniel Novak, Lei Zhu, Juliane Poelchen, Tamara Steinfass, Yiman Wang, Viktor Umansky, Jochen Utikal   +8 more
wiley   +1 more source

Geometric Calibration of the ShadowCam Instrument on the Korea Pathfinder Lunar Orbiter

Journal of Astronomy and Space Sciences
The ShadowCam instrument on the Danuri spacecraft provides high-resolution views of shadowed portions of the Moon, which are illuminated by naturally scattered light from nearby sunlit terrain. The sensitive time-delay integration detector captures high
Emerson Jacob Speyerer, Mark Southwick Robinson, David Carl Humm, Nicholas Michael Estes, Victor Hugo Silva, Robert Vernon Wagner, Prasun Mahanti, Scott Michael Brylow   +7 more
doaj   +1 more source