Results 51 to 60 of about 337,357 (338)
Contributions to Geophysics and Geodesy, 2021 Hydrometeors (rain, fog and ice crystals) affect the transmission of electromagnetic signals. Previous research showed that alterations in the signal (amplitude and phase) are affected by the composition of the atmosphere, e.g.
Peter FABO +4 more
doaj +1 more source
PPARγ signaling and emerging opportunities for improved therapeutics [PDF]
Pharmacological Research, 2016 Peroxisome proliferator-activated receptor gamma (PPARγ) is a ligand-activated nuclear receptor that regulates glucose and lipid metabolism, endothelial function and inflammation. Rosiglitazone (RGZ) and other thiazolidinedione (TZD) synthetic ligands of PPARγ are insulin sensitizers that have been used for the treatment of type 2 diabetes.
Shuibang, Wang +2 more
openaire +2 more sources
Tutorial on Remote Sensing Using GNSS Bistatic Radar of Opportunity
IEEE Geoscience and Remote Sensing Magazine, 2014 In traditional GNSS applications, signals arriving at a receiver's antenna from nearby reflecting surfaces (multipath) interfere with the signals received directly from the satellites which can often result in a reduction of positioning accuracy.
V. Zavorotny +3 more
semanticscholar +1 more source
IEEE Open Journal of Power Electronics, 2020 Many commercial controller implementations for dc-dc converters are based on pulse-width modulation (PWM) and small-signal analysis. Increasing switching frequencies, linked in part to wide bandgap devices, provide the opportunity to increase operating ...
S. Kapat, P. Krein
semanticscholar +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Undergraduate students compete in the IEEE signal processing cup: Part 1 [sp Education]
, 2015 Signal processing is the key to success for the efficient storage, transmission, and manipulation of information. The liveliness of signal processing relies on having a large number of students who undertake this research and embark on this career path ...
Sorzano, CÓS +3 more
core +1 more source
Signal processing for passive radar using OFDM waveforms
, 2022 S.226-238Passive radar is a concept where illuminators of opportunity are used in a multistatic radar setup. New digital signals, like Digital Audio/Video Broadcast (DAB/DVB), are excellent candidates for this scheme, as they are widely available, can be
Heckenbach, J. +4 more
core +1 more source
Receiver architectures for positioning with low earth orbit satellite signals: a survey
EURASIP Journal on Advances in Signal Processing, 2023 Positioning, Navigation and Timing (PNT) are services generally provided by Global Navigation Satellite Systems (GNSS). GNSS reside in medium to high orbital altitudes from the Earth’s surface, resulting in weak signal reception.
Christina Pinell +3 more
doaj +1 more source
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Navigation GPS/GLONASS in the Arctic and aurora [PDF]
Vestnik MGTU, 2016 The correspondence of the time-spatial distribution of the radiances of the aurora oval and time-spatial changes in the parameters of the navigation satellites' signal has been shown.
Chernouss S. A. +3 more
doaj +1 more source