The gonads of Deontostoma californicum were isolated from the organismal environment by dissection. In an attempt to approximate the in vivo condition and to maintain in vitro architecture and function ten media recommended for the culture of insect cells or organs were tested. The media were prepared in two series: one according to published recommendations and the second substituting filtered...

For the isolation and cultivation of Legionella pneumophila from tap water in hospitals, we compared different media and selection techniques. A second part of the study compared the L. pneumophila yields from different water samples at identical sites. A total of 210 water samples (500 ml each) were collected from two selected sites in each of 21 hospitals. Warm water samples were collected af...

Many countries' water resources are limited in both quantity and quality. While engineering solutions can now safely produce recycled and desalinated water from non-potable sources at a relatively low cost, the general public is sceptical about adopting these alternative water sources. Social scientists, policy makers and technical experts need to better understand what is causing this lack of ...

DFT calculations were used to investigate adsorptionof  F-, Cl-, Li+ and Na+ ions on the exterior surface of Mg12O12 nanocage in the gas phase and water media. The most favorite position for adsorption of the studied anions and cations are atop of Mg and O atoms of Mg12O12, respectively. The strongest intera...

In order to identify the endophytic fungi of stone fruit trees in West Azarbaijan province (Iran), healthy tissues were collected from various regions. For isolation of endophytic fungi, plant tissues were primarily washed with tap water, then surface sterilized by rinsing in 75% ethanol for 1 minute, followed by 5 minutes in 3% sodium hypochlorite (active ingredient). Disinfested pieces were t...

This paper presents a novel approach of measuring radon in-water in the field by inserting a MEDUSA gamma-ray detector into a 210 L or 1000 L container. The experimental measurements include investigating the effect of ambient background gamma-rays on in-field radon measurement, calibrating the detector efficiency using several amounts of KCl salt dissolved in tap water, and measuring radon in ...

The bacterial community in partially purified water, which is prepared by ion exchange from tap water and is used in pharmaceutical manufacturing processes, was analyzed by denaturing gradient gel electrophoresis (DGGE). 16S ribosomal DNA fragments, including V6, -7, and -8 regions, were amplified with universal primers and analyzed by DGGE. The bacterial diversity in purified water determined ...

Introduction From the spread of the Zika virus, to the polluted waters in Rio de Janeiro, media reports have highlighted health concerns in Brazil. An editorial in the New York Times (Cox 2016), along with other media reports of high levels of sewage contamination in Rio’s recreational waters, caused wide-ranging concerns about the safety of sailing, rowing, and other open-water events at the 2...

This study evaluated the surface microhardness and fluoride release of 5 restorative materials - Ketac-Fil Plus, Vitremer, Fuji II LC, Freedom and Fluorofil - in two storage media: distilled/deionized water and a pH-cycling (pH 4.6). Twelve specimens of each material, were fabricated and the initial surface microhardness (ISM) was determined in a Shimadzu HMV-2000 microhardness tester (static l...