Intensive aquaculture is adopted by more and more fish farms in China. This paper focuses on the typical water monitoring and controlling methods in intensive fish culture in Chinese fish farms. The paper illustrates the main factors in fish culturing and the way to control them: dissolved oxygen (DO), temperature, PH, particulate matter and ammonium.

There is possibility of microbial contamination of any single-dose vials (SDVs), multiple-dose vials (MDVs) and admixtures (ADXs) during the preparation and injection to the patients that could be resulted in bloodstream infection. The goal of this study was to investigate the microbial contamination of MDVs and SDVs after multiple use and ADXs prepared by nursing staff in the treatment room ve...

The quality of specimen fixation was examined within a routine diagnostic histopathology service. For each specimen the adequacy of fixation was assessed and the transit time between operating theatre and the laboratory was measured. Preliminary fixation was found to be inadequate in 25% of specimens and some form of manipulation to assist fixation was required in 36% of specimens. The mean tra...

The purpose of this paper is to introduce hotel managers and hospitality educators to room revenue analysis method that is based on statistical indices. A paper presents a theoretical example of a room pricing and shows how changes in a total room contribution margin can be attributed to one of three changes: (a) changes in contribution margins for a hotel room with a specific rate, (b) changes...

This paper demonstrates that “grandfathering” of pollution rights may be inefficient when existing polluters enjoy market power or when there are increasing returns to abatement efforts. On the other hand an “auction and refund” approach, by effectively charging producers for the pollution they cause and refunding them in proportion to the value of their economic output levels, will result in g...

Computing has been long considered a male domain in the US. With this perception, females may experience negative outcomes in the occupation or activities. Does this perception exist in other countries? This paper reports a study that investigated the gender perception of computing in three different countries: US, China, and India. The study involved 638 undergrad students. The study compared ...