Results 141 to 150 of about 168,620 (333)

Infrared horizon sensor modeling for attitude determination and control: Analysis and mission experience [PDF]

The work performed by the Attitude Determination and Control Section at the National Aeronautics and Space Administration/Goddard Space Flight Center in analyzing and evaluating the performance of infrared horizon sensors is presented.
Lee, T. H., Phenneger, M. C., Singhal, S. P., Stengle, T. H.   +3 more
core   +1 more source

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

FEBS 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

Multi-Criteria Optimization of Tubular Daylighting Devices for Classrooms in High-Solar Climates through Parametric Simulation

Journal of Daylighting
In educational architecture, particularly in high-solar climates, achieving a balance between ample daylight and visual comfort is a significant challenge.
Fatima Zohra Ferahta, Mourad Dahmani
doaj   +1 more source

Radiometric responsivity determination for Feature Identification and Location Experiment (FILE) flown on space shuttle mission [PDF]

A procedure was developed to obtain the radiometric (radiance) responsivity of the Feature Identification and Local Experiment (FILE) instrument in preparation for its flight on Space Shuttle Mission 41-G (November 1984).
Bullock, G. F., Davis, R. E., Sivertson, W. E., Jr., Wilson, R. G., Wright, R. E., Jr.   +4 more
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source

Estimating radiant flux of nighttime light images from NASA’s Black Marble product

Geo-spatial Information Science
Recently, radiant flux has been proved as a more accurate measure of nighttime light (NTL) compared to radiance. To estimate radiant flux of NTL from nighttime light images accurately, we propose a practical methodology that considers the anisotropy of ...
Xi Li, Bingqing Sun, Hanrui Cao
doaj   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

FEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke, Michal Banasik, Rokas Juodeikis, Martin J. Warren, Richard W. Pickersgill   +4 more
wiley   +1 more source

Estimation of the sky radiance [PDF]

Scientific Technical Review, 2019
For the infrared prefilter model there was a need for testing the sky radiation and defining its fluctuations within the zone of neighborhood area for the current frame and tests of repeatability.
Knežević Dragan, Nikolić Zoran, Mišković Katarina, Vasiljević Darko   +3 more
doaj  

Re‐Awakening Public Attention to the Silent Pandemic of Cancer Among Older Adults in Low‐ and Middle‐Income Countries

Aging and Cancer, EarlyView.
ABSTRACT As global populations age, cancer is increasingly becoming a leading cause of morbidity and mortality among older adults, particularly in low‐ and middle‐income countries (LMICs). Despite accounting for the majority of new cancer cases and deaths, older individuals remain underrepresented in cancer research, clinical guidelines, and health ...
Ibrahim Bidemi Abdullateef, Sunkanmi Folorunsho, Abdulazeez Opeyemi Abdulganiyu   +2 more
wiley   +1 more source

Optimizing Surface Type Definitions in Radiance-to-Irradiance Conversions for Future Earth Radiation Budget Satellite Measurements

Remote Sensing
Angular Distribution Models (ADMs) are essential for converting observed radiances from satellite sensors to the energy-budget–relevant quantity of irradiance.
Mathew van den Heever, Jake J. Gristey, Peter Pilewskie   +2 more
doaj   +1 more source