Fabry-Perot interferometer (FPI) measurements of thermospheric temperatures from the Doppler widths of the OI 630 nm nightglow emission line have been carried out at Cachoeira Paulista (23◦ S, 45◦ W, 16◦ S dip latitude), Brazil. The east-west components of the thermospheric temperatures obtained on 73 nights during the period from 1988 to 1992, primarily under quiet geomagnetic conditions, were...

The Geomagnetic Polarity Time Scale (GPTS) provides a basis for the geological timescale, quantifies geomagnetic field behavior, and gives time framework geologic studies. We build revised Middle to Late Jurassic GPTS by using new multiscale magnetic profile, combining sea surface, midwater, autonomous underwater vehicle near-bottom anomaly data from Hawaiian lineation set in Pacific Quiet Zone...

Observations made by the DMSP F10 satellite during the recovery phase from geomagnetic disturbances in June 1991 show regions of He dominance around 830 km altitude at 09:00 MLT. These regions are co-located with a trough in ionisation observed around 55 in the winter hemisphere. Plasma temperature and concentration observations made during the severe geomagnetic storm of 24 March 1991 are used...

To better understand the geomagnetic conditions and particularities of solar cycles 23 24, we present analysis from morphological variations activities parameters IMF-Bz, interplanetary electric field (E), proton density (N), Dst (disturbance storm time), Polar cap (PC) indices (PCN PCS), activity index aa. The occurrences different classes established by Zerbo et al. (2012), through daily aver...

This study investigates the ionospheric Total Electron Content (TEC) responses over 75°E longitude to solar flares and geomagnetic storms of September 6–9, 2017. The results this provide impacts solely on ionosphere such impact when effects storm are combined. On 6, two X class flares, namely X2.2 at 0857 UT X9.3 1153 UT, were recorded with quiet conditions. EUV/X-ray intensity flare was signif...

background and aim: tinnitus is perception of sound in absence of external source. reaction time is the time between sensory stimuli and a behavior. alternation of auditory reaction time has been shown in the literature in patients with tinnitus. this study has investigated the auditory reaction time in quiet and noise to different frequencies. methods: fifteen subjects with chronic tinnitus pa...

[1] Correlations between geomagnetic-field and climate parameters have been suggested repeatedly, but possible links are controversially discussed. Here we test if weak (Earth-strength) magnetic fields can affect climatically relevant properties of seawater. We found the solubility of air in seawater to be by 15% lower under reduced magneticfield (20 mT) compared to normal field conditions (50 ...

The determination of the ionospheric perturbation degree is essential to describe ionosphere state for space weather monitoring. A new method estimating spatial and temporal components Vertical Total Electron Content (VTEC) gradient introduced. based on VTEC estimated at each grid point Global Ionosphere Map (GIM) by UPC-IonSAT research group Universitat Politècnica de Catalunya. Depending requ...

. Skilled (n = 12) and less skilled (n = 12) billiards players participated in 2 experiments in which the relationship between quiet eye duration, expertise, and task complexity was examined in a near and a far aiming task. Quiet eye was defined as the final fixation on the target prior to the initiation of movement. In Experiment 1, skilled performers exhibited longer fixations on the target (...

This study provides new evidence of deficient auditory cortical processing of speech in noise in autism spectrum disorders (ASD). Speech-evoked responses (approximately 100-300 ms) in quiet and background noise were evaluated in typically-developing (TD) children and children with ASD. ASD responses showed delayed timing (both conditions) and reduced amplitudes (quiet) compared to TD responses....