Results 31 to 40 of about 3,117 (297)
Scintillations And Microlensing [PDF]
Symposium - International Astronomical Union, 1996 It is shown how the theory of scintillation may be applied to treat gravitational lensing. The theory is applied to microlensing by a system of N point masses. It is shown that scintillation theory reproduces a known result for the angular broadening due to multiple microlensing.
openaire +1 more source
Effect of solar and magnetic activity on VHF scintillations near the equatorial anomaly crest [PDF]
Annales Geophysicae, 2004 The VHF amplitude scintillation recorded during the period January 1991 to December 1993 in the declining phase of a solar cycle and April 1998 to December 1999 in the ascending phase of the next solar cycle at Varanasi (geogr.
R. P. Singh, R. P. Patel, A. K. Singh
doaj +1 more source
Equatorial electrojet and radio scintillations
, 1983 It is shown that the day-time scintillations of VHF radio waves at the equatorial station, Huancayo, are very small, of the order of 1-2 dB peak, during the equatorial electrojet condition. If the event of complete or partial counter-electrojet occurring
Rastogi, R. G.
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VHF and L-band scintillation characteristics over an Indian low latitude station, Waltair (17.7° N, 83.3° E) [PDF]
Annales Geophysicae, 2005 Characteristics of simultaneous VHF (244 MHz) and L-band (1.5 GHz) scintillations recorded at a low-latitude station, Waltair (17.7° N, 83.3° E), during the low sunspot activity year of March 2004 to March 2005, suggest that the occurrence of ...
P. V. S. Rama Rao +5 more
doaj +1 more source
Molecular Oncology, EarlyView.Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq +8 more
wiley +1 more source
Frontiers in PhysicsIntroductionThe increasing demand for high-capacity, low-latency communication in 5G and Beyond networks necessitates innovative solutions to overcome the limitations of conventional wireless technologies.
Sushank Chaudhary +4 more
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A different approach to the analysis of GPS scintillation data
Annals of Geophysics, 2002 Amplitude scintillation data from GPS were analyzed. The objective is to estimate the impact of ionospheric scintillations at Satellite Based Augmentation Systems Ranging and Integrity Monitoring Station (SBAS RIMS) level and at GPS user level.
R. G. Ezquer, B. Forte, S. M. Radicella
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Ionospheric Perturbations and Their Impact on GNSS - Investigated by DLRs High-Rate Receiver Chain [PDF]
, 2013 Global Navigation Satellite Systems (GNSS) such as GPS, Galileo or Glonass provide good positioning results for a lot of applications. However, they can be heavily disturbed by space weather hazards.
Hlubek, Nikolai +5 more
core
High latitude ionospheric scintillations
, 1984 The statistical characteristics of ionospheric irregularities are often described by specifying one or two of the statistical parameters of the scintillations that the irregularities produce in satellite radio signals.
P. A. Forsyth, J. A. Fulford
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Type I interferons modulate autophagy to shape gemcitabine response in pancreatic cancer cells
FEBS Open Bio, EarlyView.Type I interferons differentially modulate autophagy and the response of pancreatic cancer cells to gemcitabine. IFNα2b stimulates autophagic flux and protects cells from gemcitabine‐induced cell death, contributing to chemoresistance. In contrast, IFNβ1a inhibits autophagosome formation and enhances gemcitabine‐induced cell death, resulting in ...
Lucy E. Bonilla +10 more
wiley +1 more source