Abstract Leachate originating from municipal solid waste landfills poses a serious contamination threat to public health. The study performed bio-physicochemical characterization of leachate two in Oman, i.e., Multaqa landfill (MLL) and Barka (BLL) before after rainfall. Samples were characterized for 92 parameters. Additionally, the pollution index (LPI) was estimated assess expected levels po...

A study of diseases of the bovine lungs was carried out in Akwa Ibom State Niger a between (1999 – 2002). A tota of 5,369 cattle were slaughtered with n the study period out of wh ch, 459 (8.5 %) lungs were condemned. Tuberculosis accounted for 183(39.921), represent ng 3.4 % of the to al cat e popu at on. This was closely followed by Pneumonia, which was 180(39.2 %), represent ng 3.4 % of th s...

[1] We investigate simulated changes of seasonal precipitation maxima and means in a future, warmer climate. We use data from the ESSENCE project, in which a 17-member ensemble of climate change simulations in response to the SRES A1b scenario has been carried out using the ECHAM5/MPI-OM climate model. The large size of the data set gives the opportunity to detect the changes of climate extreme...

Rubber tree production is reduced by weeds that compete for environmental resources; therefore, the timing and duration of weed control influences weed interference. The objectives of this study were to evaluate the growth of rubber tree (Hevea brasiliensis) plants, to determine the critical period for weed control, and to evaluate the growth recovery of rubber trees that coexisted with weeds f...

A total of 16 organic dairy farms were surveyed for 12 months and data were collected on prevention and treatment of clinical cases of mastitis. Comparative data from seven matched conventional farms were also collected. Organic regulations prevent organic dairy farmers from using antibiotic dry cow therapy, and milk withdrawal periods after antibiotic therapy during lactation are prolonged und...

California’s medium-grain rice industry experiences a wide range of head rice yield (HRY). Average moisture of a representative paddy rice sample is the commercially used predictor of optimum harvest date to achieve high HRY. A two-year field study demonstrated that average rice moisture alone is not an adequate predictor of HRY. The history of rice moisture caused by varying meteorological con...

Five multiparous, ruminally cannulated Holstein cows (two lactating and three dry) weighing (X +/- SD) 667 +/- 35 kg were used to study the effect of abomasal purine infusion on the excretion of purine derivatives. Cows were fed corn silage four times daily at 90% of ad libitum intake (X = 9.16 kg of dry matter/d). Purines were infused into the abomasum as brewer's yeast suspensions in five inc...

We introduce a simple mathematical model for the description of 'dormancy', a survival strategy used by some bacterial populations that are intermittently exposed to external stress. We focus on the case of the cyanobacterial crust in drylands, exposed to severe water shortage, and compare the fate of ideal populations that are, respectively, capable or incapable of becoming dormant. The result...