User profiles for G. Hajj

George Hajj

- Verified email at jpl.nasa.gov - Cited by 9706

Glaucia Noeli Maroso Hajj

- Verified email at accamargo.org.br - Cited by 2948

Observing Earth's atmosphere with radio occultation measurements using the Global Positioning System

ER Kursinski, GA Hajj, JT Schofield… - Journal of …, 1997 - Wiley Online Library
The implementation of the Global Positioning System (GPS) network of satellites and the
development of small, high‐performance instrumentation to receive GPS signals have created …

A technical description of atmospheric sounding by GPS occultation

GA Hajj, ER Kursinski, LJ Romans, WI Bertiger… - Journal of Atmospheric …, 2002 - Elsevier
… (24) (ignoring the ionospheric terms) to substitute for P/T, we obtain(27) d P d h =− gm d
a 1 R N+ a 2 gm d a 1 R P w T 2 + g(m d −m w ) R P w T . Given N, we have a system of two …

Effects of antenna orientation on GPS carrier phase

JT Wu, SC Wu, GA Hajj, WI Bertiger… - Astrodynamics …, 1992 - ui.adsabs.harvard.edu
The observed carrier phase in the Global Positioning System depends on the orientation of
the antennas of the transmitter and the receiver as well as the direction of the line of sight. …

Prion protein: orchestrating neurotrophic activities

VR Martins, FH Beraldo, GN Hajj, MH Lopes… - Current issues in …, 2010 - mdpi.com
… Although, a direct interaction of ανβ3 with PrPC has never been demonstrated, β3 integrin
immunoprecipitates with PrPC (Hajj G and Martins VR, unpublished results) and β1 integrin is …

[HTML][HTML] Stress‐inducible protein 1 is a cell surface ligand for cellular prion that triggers neuroprotection

…, MH Lopes, AF Mercadante, GNM Hajj… - The EMBO …, 2002 - embopress.org
Prions are composed of an isoform of a normal sialoglycoprotein called PrP c, whose
physiological role has been under investigation, with focus on the screening for ligands. Our group …

CHAMP and SAC‐C atmospheric occultation results and intercomparisons

GA Hajj, CO Ao, BA Iijima, D Kuang… - Journal of …, 2004 - Wiley Online Library
… GPS occultations promise to provide global atmospheric profiling with high vertical resolution
(0.1–1 km) and high accuracy (<1 K temperature, <0.5 g/kg specific humidity) under all …

Ionospheric electron density profiles obtained with the Global Positioning System: Results from the GPS/MET experiment

GA Hajj, LJ Romans - Radio Science, 1998 - ieeexplore.ieee.org
The Global Positioning System Meteorology (GPS/MET) experiment, which placed a GPS
receiver in a low-Earth orbit tracking GPS satellites setting behind the Earth's limb, has …

The application of spaceborne GPS to atmospheric limb sounding and global change monitoring

WG Melbourne, ES Davis, CB Duncan, GA Hajj… - 1994 - ntrs.nasa.gov
This monograph is intended for readers with minimal background in radio science who seek
a relatively comprehensive treatment of the mission and technical aspects of an Earth-…

Initial results of radio occultation observations of Earth's atmosphere using the Global Positioning System

ER Kursinski, GA Hajj, WI Bertiger, SS Leroy… - Science, 1996 - science.org
… physiological or biochemical regulation of plant internal pCO2 and 813C [G. D. Farquhar,
M. … Kursinski, G. A. Hajj, KR Hardy, in Proceedings of the 8th Symposium on Meteorological …

[HTML][HTML] Unconventional secretion of heat shock proteins in cancer

TG Santos, VR Martins, GNM Hajj - International journal of molecular …, 2017 - mdpi.com
Heat shock proteins (HSPs) are abundant cellular proteins involved with protein homeostasis.
They have both constitutive and inducible isoforms, whose expression levels are further …