Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca(2+), Mg(2+), Na(+), K(+), NH4(+), NO3(-), NO2(-), Cl(-), SO4(2-), PO4(3-), HCO3(-)) in streams in the state of São Paulo (southe...

The common bile duct may present a number of anatomical peculiarities regarding its size, course and relations, which should be taken into consideration by the anatomists and by the surgeons as well, during the surgery of the gallbladder, pancreas and duodenum. In the present study, we have analyzed the anatomical peculiarities of the common bile duct in 150 adult corpses of both sexes from the...

The performance of approximately 300 original seedlings was compared in the single stool stage of the selection programme with their performance at the next stage (single lines). The apparent gain from selection in single stools was compared with respect to various methods of selection and different operators. The performance of unselected and selected seedlings ' was measured in the single lin...

The South African sugar industry remains under pressure to increase sugarcane supply to mills, many of which operate below optimal capacity. One opportunity for the industry, that of significant spatial expansion, lies in small grower, communally-owned areas where much of the land is suited to sugarcane production. Extensive investment capital has been channeled into small grower projects with ...

Few association mapping studies have simultaneously accounted for population structure, genotype by environment interaction (GEI), and spatial variation. In this sugarcane association mapping study we tested models accounting for these factors and identified the impact that each model component had on the list of markers declared as being significantly associated with traits. About 480 genotype...

Health Reports, Vol. 15, No. 3, May 2004 Statistics Canada, Catalogue 82-003 About 155,000 Canadians who were living in private households in 2000/01 needed a wheelchair to get around. This represents 0.6% of the total household population aged 12 or older (Table A). An additional 540,000 individuals (2.1%) needed other devices such as braces, canes or crutches. These figures on the use of “mob...

Simple random walk considerations are used to interpret rodent population data collected in Hantavirus-related investigations in Panama regarding the short-tailed cane mouse, Zygodontomys brevicauda. The diffusion constant of mice is evaluated to be of the order of (and larger than) 200 meters squared per day. The investigation also shows that the rodent mean square displacement saturates in ti...

The quality of seedcane used by cane growers in South Africa has not reached the standards necessary to contain the spread of diseases and maintain varietal purity. Since the formation of Local Pest and Disease Control (LP & DC) Committees in 1982, a number of grower groups have established formal seedcane schemes to try to improve the quality ofseedcane. Six schemes are described. Each scheme ...

In this paper comments and observations on the first year's performance of a new shredder at Farleigh have been set down, together with an assessment of its operating characteristics. The shredder is of recent, heavy duty design having an anvil bar and breaker section covering an arc of 85" and is driven by two motors having a combined rating of 1400 horse-power. The results of test runs taken ...