Following a study of large-scale atmospheric and oceanic interactions associated with the recent Northeast drought, smaller-scale manifestations of this drought are studied with the help of records from New York Central Park Observatory. The long-period records of this Observatory (since 1869) are then studied statistically in relation to dry periods. Among the most interesting facts brought ou...

The purpose of this study is to characterize and understand the long-term behavior of the output from megavoltage radiotherapy linear accelerators. Output trends of nine beams from three linear accelerators over a period of more than three years are reported and analyzed. Output, taken during daily warm-up, forms the basis of this study. The output is measured using devices having ion chambers....

Parasitic Gastroenteritis(PGE) Penrith diagnosed PGE in a 10-week-old Limousin-X calf which had been at pasture for three weeks before developing diarrhoea. Parasitological examination revealed 5100 trichostrongyle eggs per gram faeces and 1700 coccidial oocysts. Langford diagnosed PGE on eight occasions in six to twelve month old calves Trichostrongyle sp. worm egg counts of up to 4,550 epg we...

Abstract. Concentrations of water vapour entering the tropical lower stratosphere are primarily determined by conditions that air parcels encounter as they transported through tropopause layer (TTL). Here we quantify relative roles variations in TTL temperatures and transport determining seasonal interannual stratospheric vapour. Following previous studies, use trajectory calculations with conc...

We analyze the interannual monthly variability of oxygen isotope ratios in data from IAEA stations along the Atlantic coast of South America between 238 and 348 S to evaluate the influence of parameters such as temperature, rainfall amount and moisture source contribution on meteoric water recharging two karst systems in subtropical Brazil. In addition, a 2 year monitoring program performed on ...