This study offers an adaptation of the Rugai method for the collection of cysts, eggs and parasite larvae from beaches, parks and public squares.

N.A. NICOROVICI1, A.A. ASATRYAN1, L.C. BOTTEN2, K. BUSCH3, R. C. MCPHEDRAN1, C. M. DE STERKE1, P. A. ROBINSON1, G.H. SMITH2, D.R. MCKENZIE1 and A.R. PARKER4 1School of Physics, University of Sydney, NSW 2006, Australia 2School of Mathematical Sciences,University of Technology, Sydney, NSW 2007, Australia 3Department of Physics,University of Karlsruhe, P. O. Box 6980, 76128 Karlsruhe, Germany 4D...

According to risk systems theory and the characteristics of the chemical industry, an index system was established for risk assessment of enterprises in chemical industrial parks (CIPs) based on the inherent risk of the source, effectiveness of the prevention and control mechanism, and vulnerability of the receptor. A comprehensive risk assessment method based on catastrophe theory was then pro...

Although livestock anthrax is declining in many parts of the world, with an increasing number of countries probably truly free of the disease, anthrax remains enzootic in many national parks and even in some game ranching areas. These infected areas can present a persistent risk to surrounding livestock, which may otherwise be free of the disease, as well as a public health risk. The authors us...

Only 25-35% of Canadian children and youth regularly engage in active transportation (AT; e.g., non-motorized travel modes such as walking and cycling) to/from school. Previous research shows that distance between home and school is the strongest barrier to AT. Based on social ecological theory, we describe several strategies to overcome this barrier. At the individual level, children and youth...

As limited-control dog parks become more popular, concerns arise about whether these parks encourage interdog aggression. Systematic observations made at 1 park over 72 hr across 8 months found that 28 conflicts or potential conflicts occurred (< 0.5%). Of these, 14 were clear aggressive episodes. Each lasted less than 1 min (< 0.33% of total observation time). There were 14 other incidents of ...

Mathematical models with time delays are often encountered in various engineering systems due to measurement and computational delays, transmission and transport lags. Since the existence of time delays is frequently the source of instability, an important theme in neutral delay-differential systems is the stability of response characteristics. Different methods have been presented to deal with...

green space is counted as one of the important bases of each city, especially great cities like tehran. with considering to vast application of urban green aria, the necessity of the managing these sources is felt more day-by-day. for proper managing each source, first the inventory of that source is taken into the consideration. regretfully so far there has been no comprehensive studios patter...