The Gulf of Riga is a shallow basin in the eastern Baltic Sea connected to Central via straits. Seasonal oxygen depletion occurs deep layer gulf. We conducted hourly measurements dissolved oxygen, temperature, and salinity (50 m) gulf observed full cycle development relaxation hypoxia 2021. Hypoxia (<2.9 mg l -1 ) first occurred on 27 June was for 71 days until its complete decay 22 Octo...

In this article, entropy generation on viscous nanofluid through a horizontal Riga plate has been examined. The present flow problem consists of continuity, linear momentum, thermal energy, and nanoparticle concentration equation which are simplified with the help of Oberbeck-Boussinesq approximation. The resulting highly nonlinear coupled partial differential equations are solved numerically b...

OBJECTIVES To study the background and the working and socio-economic conditions, and the prevalence of some sexually transmitted diseases (STDs), among street and sex club female Latvian prostitutes. STUDY DESIGN Structured in-depth interviews, as well as clinical examination and laboratory tests for gonorrhea, syphilis, bacterial vaginosis, trichomoniasis, ectoparasites and HIV-infections. ...

A method and technical tools for correction of range-bias caused by variation of photo-multiplier (PM) output pulses in amplitude and shape are considered. The method is based on preliminary estimation of a relationship between certain integral parameter of PM pulses and corresponding range-bias. This integral parameter is measured for each PM pulse in parallel with measurement of basic time in...