PURPOSE We studied the neurotoxicity of carbon dioxide as a contrast agent in the central
nervous system by performing CO2 digital subtraction angiography (DSA) in the aortic arch …

… This, coupled with the rapid change of the ground layer temperature at that time (approximately
1 h after sunset) explains the three or more layers that are seen in the AS record 2.5 h …

… observe the dependence of h(q) on q (ie h(q) varies … h(q) versus q for the T mean (a), T min
(b) and T max (c) time series. In general, h(q) decreases with increasing q and the slope of h(q…

… ( 1 H MRS) provides a noninvasive in vivo assessment of brain metabolism. H MRS has …
of patients with severe OSAS using single voxel 1 H MRS. Both the prefrontal cortex and the …

… time of 4 h. After 14 h of treatment the COD reduction reached 73%. In addition, the linear
reduction in COD indicates zero-order kinetics. Based on the experimental results of Fig. …

… Adequate adherence to CPAP was defined to 4.5 h of use … and two used the CPAP for <4 h
per night, thus remaining 22 and … time was 5.62 ± 0.82 h per night (range 4.3–7.5 h per night). …

… The most striking differences can be seen in the values of h(q), which are greater for the
point located near to Athens (Figure 2e and Figure 3e). In addition to this, from Figure 2d and …

… This analysis is supported by the trajectories of two tetroons released at 2020 h on 10 July
and 0330 h on 11 July 1987 and shown in Fig. 7. The first one flew at a low height of about …

The deterioration of urban air quality is considered worldwide one of the primary environmental
issues and scientific evidence associates the exposure to ambient air pollution with …

… frequency of 1 h. The data resolution frequency is 1 μg/m 3 and the air flow rate is
approximately 1 m 3 /h. The instruments are calibrated upon installation and on a frequent basis. …