Results 41 to 50 of about 977,403 (284)
Annals of Glaciology, 2020 Radar surveys across ice sheets typically measure numerous englacial layers that can often be regarded as isochrones. Such layers are valuable for extrapolating age–depth relationships away from ice-core locations, reconstructing palaeoaccumulation ...
Richard Delf +4 more
doaj +1 more source
Radio-echo sounding isochrone depths in the East Antarctic Ice Sheet
, 2018 Radio-echo sounding isochrone depths in the East Antarctic Ice ...
Creyts, Timothy T +7 more
core +1 more source
Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
Лëд и снег, 2022 Snow cover significantly affects the thermal regime of the underlying soils, and its assessment and monitoring are an urgent task of remote sensing studies.
Yu. Ya. Macheret +2 more
doaj +1 more source
Radio-echo Sounding at the Mittivakkat Gletscher, Southeast Greenland [PDF]
Arctic, Antarctic, and Alpine Research, 1999 Profiles along sounding lines and maps are presented of the glacier surface, bottom topography, and ice thickness of Mittivakkat Gletscher. The maps are the result of the use of monopulse radio-echo sounding of ice thickness in about 450 points along profiles across the glacier.
Hasholt, Bent, Knudsen, Niels Aage Tvis
openaire +1 more source
The ubiquitin system in normal and infected germinal center B cells
FEBS Letters, EarlyView.The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis +2 more
wiley +1 more source
Radio-Echo Sounding Over Polar Ice Masses [PDF]
Journal of Environmental and Engineering Geophysics, 2007 Abstract Radio-echo sounding (RES) constitutes the principal means by which glaciologists investigate the subsurface properties of the polar ice sheets and ice caps. Developed in the 1960s as a method for locating and mapping the subglacial interface beneath extensive regions of ice-covered terrain, thereby to constrain ice volume and
Bingham, Robert G., Siegert, Martin J.
openaire +2 more sources
Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley +1 more source
Helicopter-borne radio-echo sounding of Svartisen, Norway [PDF]
Annals of Glaciology, 1993 A helicopter-mounted low frequency ice-radar has been developed for the depth sounding of temperate glaciers. The radar consists of standard transmitter and digital receiver equipment. The long antennae are supported on a special aluminium and fibreglass construction which hangs 20 m below the helicopter. The radar has been used on Engabreen, an outlet
Michael Kennett +2 more
openaire +1 more source
Surface Clutter Suppression Techniques for Ice Sounding Radars: Analysis of Airborne Data [PDF]
, 2008 For the ice sounding of Antarctica from space, a P-band radar at 435 MHz is the only option which complies with present ITU regulations. At this frequency the ice surface cannot be considered smooth, leading to high ambiguous returns.
Hélière, Florence +2 more
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