The Effect of Hydraulic Performance and Operation Interventions on Water Quality: The case of Phakalane Water Distribution System in Botswana
This study demonstrates the application of water distribution system (WDS) simulations to investigate the effect of hydraulic performance, network configurations and alternative operational interventions (AOI) on water quality in a WDS. The study explores the viability of introducing AOI to the current (existing) and plausible (possible) network configurations to improve water age and chlorine residual in the Phakalane WDS. The criteria used to determine the performances of the WDS are (1) the percentage of nodes and (2) the percentage of volume of water demand with water age or chlorine residual, which are within the acceptable or unacceptable limits. The current network configuration and operational intervention of Phakalane WDS was analysed. The results revealed that flow velocities in more than 95% of the pipes are less than the minimum acceptable limit (0.3 m/s), which is suspected to contribute to increase in water age and decay of chlorine residual due to accumulation of deposits in the pipes. Furthermore, all the nodes and 87% volume of water demand had water age of more than 2 days. Also, only 43% of the nodes and 28% volume of water demand had chlorine residual within the standard limits (0.3 - 0.6 mg/L). In order to evaluate possible interventions that would improve water age and chlorine residual in the Phakalane WDS, several AOI and network configurations were analysed. The results revealed that the AOI introduced to the plausible network configuration would gene...
This study was conducted over a period of one year where all smokers presenting to a chest clinic in a tertiary centre were enrolled, each was classified on the basis of stage of readiness to change and underwent repeated counselling for a period of six months and each session was preceded and succeeded with filling of Fagerstorm test for nicotine dependence. Over the period of a year, 207 patients participated in this study, the mean age was 50.74±14.74 years; mean duration of tobacco use was 29.43±14.72 years; 64.3% were illiterate, 11.6% primary education, 14.1% were matric and while 10.1% were graduate. A...
Publication date: Available online 8 April 2020Source: Zoologischer AnzeigerAuthor(s): Martín I. Lorusso, María P. Sal Moyano, María A. Gavio, Colin L. McLay
Publication date: Available online 7 April 2020Source: Small Ruminant ResearchAuthor(s): Wilson Kaumbata, Liveness Banda, Gábor Mészáros, Timothy Gondwe, M.J. Woodward-Greene, Benjamin D. Rosen, Curtis P. Van Tassell, Johann Sölkner, Maria Wurzinger
DISCUSSION: The study showed a higher LTBI prevalence among returnees after assignments abroad than among medical personnel in Germany after TB contact who had been investigated in previous studies. In order to be able to detect LTBI infections acquired abroad, routine testing before and after an assignment abroad seems to be necessary. PMID: 32259872 [PubMed - as supplied by publisher]
Authors: Herth F, Weidmann B PMID: 32259871 [PubMed - as supplied by publisher]
Publication date: Available online 8 April 2020Source: Research in Veterinary ScienceAuthor(s): Nanhua Chen, Yanzhao Xiao, Mengxue Ye, Xinshuai Li, Shubin Li, Ningjun Xie, Yue Wei, Jialin Wang, Jianzhong Zhu
Publication date: Available online 7 April 2020Source: Preventive Veterinary MedicineAuthor(s): Christien Masmeijer, Katharina van Leenen, Lieze De Cremer, Piet Deprez, Eric Cox, Bert Devriendt, Bart Pardon
Publication date: Available online 7 April 2020Source: Artificial Intelligence in MedicineAuthor(s): Siva Teja Kakileti, Himanshu J. Madhu, Geetha Manjunath, Leonard Wee, Andre Dekker, Sudhakar Sampangi
Conclusion: Our findings suggest that level of LDH, CRP, ALT and NEU can be used to predict the result of COVID-19 test. They can help in detection of COVID-19 patients. PMID: 32259132 [PubMed - as supplied by publisher]
Conclusion: The most important finding of one-month ticagrelor consumption were dyspnea, bleeding, and hypersensitivity reaction. No case of bradycardia and stent thrombosis was detected. In our study , iranian population has more susceptibility to dyspnea than PLATO result. The rate of drug discontinuation in this series of cases was 6.4 %. PMID: 32259131 [PubMed - as supplied by publisher]