Mixed ligand com plexes of bis(phenyldithiocarbazato)nickel(II) with triphenylphosphane and a number of ditertiary phosphanes have been synthesised. The com plexes were characterised on the basis of molar conductance, magnetic moment values, electronic and IR spectra. Out of the five prepared com plexes the mixed ligand com plexes with triphenylphosphane and bis(diphenylphosphino)m ethane are p...

Properties of refrigerant/lubricant mixtures are important for design and reliable operation of vapor compression and absorption refflgeration equipment. £valuatJOn of substitute refrigerants and lubncants tor CFCs and of new working fluids for absorption systems can be enhanced by the availability of rap1d and accurate methods for determimng fluid properties. This paper descnbes new methods fo...

A case-control comparison of immunologic and psychological parameters in the multiple chemical sensitivity syndrome. This letter is prompted by Rall's editorial on media and science in the January issue of EHP (102:10). Rall implies that bad reporting is being conducted concerning dioxin, CFCs, and asbestos. Rall concludes by assuming that he is correct in assigning a high level of risk to each...

Amounts of source gases with stratospheric sinks (CFCs, N2O, CH4) are affected by changes in Brewer–Dobson circulation. Source gases and their degradation products are important for atmospheric chemistry and climate. With a simple model, we examine how amounts and lifetimes of source gases and products depend on speed of the circulation. Transient results differ from steady-state and stratosphe...

cutaneous malignancy is complex. Current models suggest, however, that ozone depletion may cause a more rapid increase in melanoma than in non-melanoma skin cancer.10 This is because short episodes of intense and burning ultraviolet exposure are linked to melanoma, whereas nonmelanoma skin cancer is associated with the lifetime build up of exposure to ultraviolet. To quantify changes in inciden...

Atmospheric aerosols influence Earth's radiative balance, having both warming and cooling effects. Though many aerosols reflect radiation, carbonaceous aerosols such as black carbon and certain organic carbon species known as brown carbon have the potential to warm the atmosphere by absorbing light. Black carbon absorbs light over the entire solar spectrum whereas brown carbon absorbs near-UV w...

Abstract. The Zeppelin Observatory (78.90? N, 11.88? E) is located on Mountain at 472 m a.s.l. Spitsbergen, the largest island of Svalbard archipelago. Established in 1989, observatory part Ny-Ålesund Research Station and an important atmospheric measurement site, one only a few high Arctic, several European global monitoring programmes research infrastructures, notably Monitoring Evaluation Pr...

Hyperexcitability of the Hippocampal CA1 and the Dentate Gyrus in Rats Subchronically Exposed to a Substitute for Chlorofluorocarbons, 1-Bromopropane Vapor: Yukiko FUETA, et al. The First Department of Medical Technology, School of Health Sciences, University of Occupational and Environmental Health—To investigate the effects on the central nervous system of subchronic exposure to 1-bromopropan...

In this paper, the performance of three high pressure HFC refrigerants: R-32, R-41 OA, and R-41 08, is compared to that of R-22. R-32 has excellent thermophysical properties as compared to R-41 OA, R-41 08 and R-22. However, R-32 is a flammable refrigerant while R-41 OA and R-41 OB are non-flammable. The performance of these refrigerants is investigated in a residential heat pump at the test co...

The solvation dynamics and reactivity of localized excess electrons in aqueous environments have attracted great attention in many areas of physics, chemistry, and biology. This manifold attraction results from the importance of water as a solvent in nature as well as from the key role of low-energy electrons in many chemical reactions. One prominent example is the electron-induced dissociation...