Although this estimate is equal to the observed temporal variations in impedance data (within one order of magnitude), both the polarity and the periods of time during which the peak variations of impedance occur (green curved lines in the 2nd and 4th plots from the top in Fig. 7) do not correlate well with the temperature monitoring curves (top in Fig. 7).
On a two-peak variation of geomagnetic activities seen in past solar cycles, Gonzalez et al. (1990) and Echer et al. (2011) noted that the first peak, appearing in the maximum phase, is caused by coronal mass ejections (CMEs) and the second peak, appearing in the declining phase, is caused by high-speed streams from coronal holes.
In this study we report on a solar 27-day signature in NLC altitude with peak-to-peak variations of about 400 m.
By applying a stress field on crystalline sample and monitoring the peak width variation of different hkl diffractions as a function of pressure, one can derive the differential strain, thus the constitutive properties of the sample materials.
Atenolol-induced decreases in heart rate and cardiac output and transitory peaks of variation of arterial pressure due to poorer pressure regulation in very old animals, which have a myocardium heavily degenerated by aging-related damage and the main systemic arteries stiffened by atherosclerosis, can lead to heart failure and be fatal.
A peak-to-peak spectral shift variation of up to 2.3 nm is detected in CASI.
As results, the peak area variations of fatty acids were less than 5% (data not shown), suggesting good instrumental performance during the whole analytical run.
Such factors were evaluated using a 24 (two factors and four levels) factorial design analyzing the anodic peak currents (Ipa) and the variation of peak potential (ΔEp) responses of the respective cyclic voltammograms in presence of potassium ferrocyanide.
This result is different from the CDs synthesized by other methods, which only showed a slight shift of the emission peak with the variation of pH value [25].
The reproducibility of the analytical methods and the repeatability of the extraction procedure were assessed by evaluating the peak area ratio variation of the three alkaloids present in the extracts.
