Cool spots on the surface of the active giant PZ Mon

Based on the multiband (BVRIJHKL) photometric observations of the active red giant PZ Mon performed for the first time in the winter season of 2017-2018, we have determined the main characteristics of the spotted stellar surface in a parametric three-spot model. The unspotted surface temperature is Teff=4730 K, the temperature of the cool spots is Tspot=3500 K, their relative area is about 41%, and the temperature of the warm spots is Twarm=4500 K with a maximum relative area up to 20%. The distribution of spots over the stellar surface has been modeled. The warm spots have been found to be distributed at various longitudes in the hemisphere on the side of the secondary component and are most likely a result of its influence.Comment: 5 pages, 7 figure

Superhump evolution of WZ Sge-type dwarf nova ASASSN-14cv at rebrightening stage

© 2016, Pleiades Publishing, Ltd.We report the results of observations of a WZ Sge-type dwarf nova ASASSN-14cv, acquired in 2014 and covering the end of a superoutburst and a rebrightening stage. We detected 8 rebrightenings of this star. Based on the light curve profiles of the rebrightenings, we conclude on the existence of both the “inside-out” and “outside-in” outbursts. During the entire course of the rebrightening stage, a brightness variability with the mean period of P = 0.d06042(8) was detected, which was identified as a superhump period during the stage B of the superoutburst. The character of the registered superhump evolution can be either described by a parabolic approximation with the negative Pdot = −1.1 × 10−5, or by an approximation with 2 linear areas with the corresponding periods of 0.d06074(3) and 0.d06046(9)

Natriuretic Peptide in Patients with Metabolic Syndrome

The present research aimed at studying the atrial and brain natriuretic peptide (NUP) levels in the blood plasma of patients with Metabolic Syndrome (MS). The research includes 52 patients in total, of which 40 patients with MS constitute the observation group while 12 conventionally healthy people comprise the control group. An increase in the NT-proBNP at 20% (p<0.05) and proANP at 67.8% (p<0.05) was observed in the blood plasma of the patients with MS. We observed a strong correlation between the atrium and brain NUP in the plasma and insulin and the insulin resistance index (IRI) that allows us to consider the NUP levels as the markers of early diagnosis of MS