High residual oil content in antibiotic production waste mother liquor makes solid–liquid separation of fermentation residue and wastewater difficult. A yeast-based pretreatment process was established for the removal of oil and promotion of solid–liquid separation in antibiotic production wastewater treatment systems. Six yeast strains acquired from different sources were inoculated into seque...

The decimal elimination capacity (DEC) of slow sand filters (SSF) for viruses, bacteria and oocysts of Cryptosporidium has been assessed from full-scale data and pilot plant and laboratory experiments. DEC for viruses calculated from experimental data with MS2-bacteriophages in the pilot plant filters was 1.5–2 log10. E. coli and thermotolerant coliforms (Coli44) were removed at full-scale and ...

108 INTRODUCTION Altruistic behaviours have been the object of abundant theoretical and empirical social science research for some thirty years (Chac—n, 1985, Piliavin and Charng, 1990). In this field there are two tendencies that have captured the majority of research attention. The first of these is represented by unexpected situations in which help is offered to strangers, reflecting the alt...

Researchers at Washington State University conducted an independent evaluation of the first year of the Washington State Early Childhood Education Career and Wage Ladder Pilot Program. The evaluation, which compared ladder centers with a control group, verified that the career and wage ladder works to improve the quality of early childhood education by reducing teacher turnover and encouraging ...

Figure 1. PILOT telescope, enclosure and tower INTRODUCTION PILOT (The Pathfinder for an International Large Optical Telescope) is a 2.4m optical/infrared telescope, proposed for Dome C on the Antarctic Plateau, with target first light at the end of 2012.

Scientific problems that depend on processing large amounts of data require overcoming challenges in multiple areas: managing large-scale data distribution, controlling co-placement and scheduling of data with compute resources, and storing, transferring, and managing large volumes of data. Although there exist multiple approaches to addressing each of these challenges and the complexity of dis...

Creativity can be understood in analogous ways across both arts and sciences. A central component of artistic creativity is the ability to generate many different expressions. Scientific creativity involves the ability to generate various novel solutions to problems. This means a possible way to augment creativity in both arts and science is to seek to increase our ability to generate many expr...