The biotransformation of phosphogypsum in cultures of sulfate-reducing bacteria (SRB) isolated from crude petroleum-refining wastewaters or purified using activated sludge method was studied. Selection was with the microcosms method on Postgate and minimal medium with different carbon sources, Emerson medium and petroleum-refining wastewaters. Highest hydrogen sulfide production, in excess of 5...

OBJECTIVE to describe the experiences of women who were participants in the Australian CenteringPregnancy Pilot Study. CenteringPregnancy is an innovative model of care where antenatal care is provided in a group environment. The aim of the pilot study was to determine whether it would be feasible to implement this model of care in Australia. DESIGN a descriptive study was conducted. Data inc...

It is a well-known result of Kadec that every two separable infinite dimensional Banach spaces are homeomorphic. Also in large classes of nonseparable Banach spaces (perhaps all) the density character of a Banach space is its only topological invariant (see the book [2] for details). The situation changes considerably if we consider uniform homeomorphisms. Several results are known which prove ...

This review describes medium and high molecular weight organic material found in wastewaters from pulp and paper industry. The aim is to review the versatile pollutants and the analysis methods for their determination. Among other pollutants, biocides, extractives, and lignin-derived compounds are major contributors to harmful effects, such as toxicity, of industrial wastewaters. Toxicity of wa...

Clean fresh water is essential to our life. Unfortunately, in our consumer-based economy, a large amounts of wastewater having been generated by industrial plants. Wastewaters produced in many industrial plants often contain organic compounds which are toxic and not amenable to direct biological treatment. These wastewaters must be treated in order to meet the specifications for discharge or fo...

In the editorial by Dr. A. Jay Block,' which appeared in the November 1993 issue of Chest, the author laments the disappearance of the ward laboratory and expresses some bewilderment over why this has occurred. In the inner-city hospital facing financial cuts in which I work, the motivation for its removal may have been financial, as tests performed in a ward laboratory are unreimbursed while t...

Over the past few years, residual pharmaceuticals (antibiotics, anticonvulsants, antipyretics drugs, hormones) have begun to be considered as emerging environmental pollutants due to their continuous input and persistence to aquatic ecosystem even at low concentrations. Therefore, the development of efficient, cost-effective, and stable methods and materials for the wastewaters treatment have g...

1. Since the mid-1990s, Uzbekistan has undergone reforms in the health sector focused on restructuring of primary health care in Uzbekistan as well as the establishment of an emergency medical care network. These were defined in the August 1996 Law on Health Protection and the1998 presidential decree outlining a new structural framework for the Uzbek health care system and priority areas for he...