Machine learning in the prediction of human wellbeing.

Subjective wellbeing data are increasingly used across the social sciences. Yet, despite the widespread use of such data, the predictive power of approaches commonly used to model wellbeing is only limited. In response, we here use tree-based Machine Learning (ML) algorithms to provide a better understanding of respondents' self-reported wellbeing.

Electroencephalography spectral coherence analysis during cycle ergometry in low- and high-tolerant individuals.

The main objective of this study was to further understanding of the patterns of spectral connectivity during exercise in low- and high-tolerant individuals. Thirty-nine healthy individuals (i.e.

[Molecular epidemiological analysis of hiv infection in northern seaports of Russia].

The results of the molecular-epidemiological analysis of HIV-1 variants circulating in Arkhangelsk and Murmansk - northern seaports of Russia - were presented. In these seaports the HIV-1 variants belonging to subtype A1 were predominant (93% in Murmansk, 83% in Arkhangelsk). In addition to these variants, viruses of other subtypes such as B, C, D and recombinant forms CRF02_AG and CRF03_AB were identifed.

[Prevalence of primary drug resistance in M. tuberculosis in four administrative areas of the North-Western Federal District of the Russian Federation].

The paper describes the results of radiometric BACTEC assay of drug susceptibility of Mycobacterium tuberculosis strains, isolated from 81 new cases of tuberculosis, to first- and second-line antituberculosis drugs in four administrative areas of the North-Western Federal District of the Russian Federation. The results of determination of drug susceptibility to the antituberculosis drugs by the absolute concentration method and the BACTEC method are also compared. Primary drug resistance has been revealed in 58.

[Cyclic adenosine monophosphate concentration in the blood plasma in coronary arteriosclerosis and its relationship to the nature of the metabolic disorders].

The concentrations of cyclic adenosine monophosphate (cAMP) in the blood plasma collected on an empty stomach were determined by the radiochemical method in 40 males from 37 to 72 years of age suffering from ischemic heart disease. The cAMP blood plasma content was significantly higher in patients with coronary atherosclerosis than in 20 healthy young persons of the control group. In patients with a diabetic character of the glycemic curve under conditions of the oral standard test for glucose tolerance, the concentration of cAMP in blood plasma was significantly higher than that in patients with normal or doubtful glycemic curves.

[Cardiodynamic characteristics of chronic coronary insufficiency patients at medical rehabilitation stages using therapeutic physical exercise measures].

The functional condition of the cardiovascular system was studied in patients with chronic coronary insufficiency in various stages of rehabilitation employing measures of remedial gymnastics with the elaboration of criteria for substaintiating the broadening of the movement regimen. Sixty patients suffering from ischemic heart disease marked by the clinical picture of chronic coronary insufficiency and 25 persons forming a control group were examined Polycardiography, aortic and arterial rheocardiography, and tele-electrocardiography were used. A follow-up of the functional condition of the cardiovascular system makes it possible to detect signs of the development of its reserve possibilities under the effect of long-term remedial gymnastics.

[Causes of recurrences of mitral stenosis].

The authors present an analysis of the late results of closed mitral commissurotomy in 364 patients (maximum terms of observation--17 years). Main causes of recurrent mitral stenosis were recognized: activation of a rheumatic process (50%), nonspecific scarring processes (27%), inadequate commissurotomies (11.1%) and others (11.