In the present study, 11 size classes of particulate matter were collected from a semi-rural site in industrial city Ulsan, South Korea 2019 to investigate distribution and day–night variation water-soluble inorganic ions (WSIIs). Approximately 70% detected WSIIs found fine particles, with Na+, Ca2+, Cl?, NO3? dominant (~70%) coarse particles SO42?, NO3?, NH4+ (SNA) particles. Monthly total was...

The surgical separation of a pair of conjoined twins in the year 1689 by Johannes Fatio was the subject of a recent article in this journal. The reference used as publication of the case was Fatio's book, Der Arzney Doctor, Helvetisch-Vernuftige Wehe-Mutter, published in 1752, although the case was presented in literature by three earlier sources. Two articles were published in the Miscellanea ...

The multiple images observed in galaxy cluster Abell 1689 provide strong constraints not only on the mass distribution of the cluster but also on the ensemble properties of the cluster galaxies. Using parametric strong lensing models for the cluster, and by assuming well motivated scaling laws between the truncation radius s and the velocity dispersion σ of a cluster galaxy we are able to deriv...

The procofactor, factor VIII, is activated by thrombin or factor Xa-catalyzed cleavage at three P1 residues: Arg-372, Arg-740, and Arg-1689. The catalytic efficiency for thrombin cleavage at Arg-740 is greater than at either Arg-1689 or Arg-372 and influences reaction rates at these sites. Because cleavage at Arg-372 appears rate-limiting and dependent upon initial cleavage at Arg-740, we inves...

A reduction in gaseous pollutants is an important method for mitigating PM2.5 concentration the atmosphere, and SO2/NH3/NOx beneficial to control secondary inorganic aerosols PM2.5. In this study, Weather Research Forecasting model with Chemistry (WRF-Chem) was applied study impact on its using scenario simulation Beijing–Tianjin–Hebei (BTH) region. The results showed that BTH region characteri...

Size-segregated aerosols (five stages from <1.1 to >7 μm in diameter) collected a coastal location south-west peninsular India were analysed for water-soluble ionic species, carbonaceous and metallic species on seasonal basis two years (2017–19). The annual mean concentration of the components Na+, Ca2+, Mg2+, Cl−, NO3−, Al, Fe exhibited coarse mode (> 2 μm) enhancement; while NH4+, K+, SO42−, ...

Abstract. Wet scavenging is an efficient pathway for the removal of particulate matter (PM) from atmosphere. High levels PM have been a major cause air pollution in Beijing but decreased sharply under Air Pollution Prevention and Control Action Plan launched 2013. In this study, 4 years observations wet deposition conducted using sequential sampling technique to investigate detailed variation c...

1. Using cyclic AMP to stimulate perfused tsetse fly Malpighian tubules bathed in SO42- Ringer frequently causes an immediate but transient peak in transtubular potential (Vt), before stabilisation of Vt at an increased value. 2. These transients were investigated by monitoring the associated changes in cable properties and current&shy;voltage (I/V) relationships. Tubules were perfused and bath...