Results 71 to 80 of about 14,987,587 (260)
Variability of the total radiation belt electron content [PDF]
Journal of Geophysical Research: Space Physics, 2009 To quantify radiation belt variability, while de‐emphasizing internal transport, the total number of electrons in the outer belt has been computed from data taken on the Polar satellite as a function of time throughout 1998 and of kinetic energy in the range 0.8 to 6.4 MeV.
R. S. Selesnick, S. G. Kanekal
openaire +1 more source
GNSS Total Electron Content Data (60 s) at Bjørnøya in 2020
, 2021 This data set contains Total Electron Content data at 60 seconds time resolution from Bjørnøya, Svalbard. The measurements were collected by the University of Bergen using a NovAtel GPStation-6 global navigation satellite system receiver.
Oksavik, Kjellmar
core +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
Adaptive Modeling of the Global Ionosphere Vertical Total Electron Content
Remote Sensing, 2020 The Kalman filter (KF) is widely applied in (ultra) rapid and (near) real-time ionosphere modeling to meet the demand on ionosphere products required in many applications extending from navigation and positioning to monitoring space weather events and ...
Eren Erdogan +4 more
doaj +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Total electron content variations over the earthquakes epicenters
Physical Sciences and Technology, 2015 In this work the total electron content variations over the strongest earthquakes epicenters for the period 1999-2014 was investigated. In order to provide good accuracy of local total electron content estimation the picenters in the territory with ...
K. E. Nurgaliyeva +2 more
doaj
VARIATIONS OF IONOSPHERIC PARAMETERS OVER ALMATY (KAZAKHSTAN) IN 1999–2013
Solar-Terrestrial Physics, 2019 The paper presents the results of a study of the behavior of ionospheric parameters of the total electron content, I(t), and electron density in the maximum F2 layer, Nm, over Almaty (Kazakhstan) [43.25° N; 76.92° E] in 1999–2013. The time interval under
Mukasheva S.N. +2 more
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Reconstruction of F2 layer peak electron density based on operational vertical total electron content maps [PDF]
Annales Geophysicae, 2013 Electron density is the major determining parameter of the ionosphere. Especially the maximum electron density of the F2 layer in the ionosphere, NmF2, is of particular interest with regard to the HF radio communication applications as well as for ...
T. Gerzen +3 more
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GNSS Total Electron Content Data (60 s) at Hopen in 2014
, 2020 This data set contains Total Electron Content data at 60 seconds time resolution at Hopen, Svalbard. The measurements were collected by the University of Bergen using a NovAtel GPStation-6 global navigation satellite system receiver.
Oksavik, Kjellmar
core +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source