Gerhard Du Preez

5 Questions 7 Answers 0 Followers

Questions related from Gerhard Du Preez

How to interpret salt speciation in solutions using PHREEQC?

Hi there, I'm using PHREEQC to model the speciation of salts in historical water quality data. Can someone please provide a link to a guide/literature on interpreting the results? As well as info...

16 June 2016 5,063 6 View

How to differentiate between high and low flow periods, and quantifying dilution effect?

Hi all I have two tasks: 1) Using historical water quality monitoring data to identify high and low flow periods for specific sites and, 2) Determining what influence the dilution effect might...

03 February 2016 1,963 3 View

Can anyone recommend a bibliometrics tool using keywords to analyse research efforts over time?

I want plot the frequency of papers published related to specific keywords from google scholar or similar database. Can recommend a biobliometrics tool/software application?

10 December 2015 6,628 17 View

Could the bagworms cause a harm to the cattle?

A local cattle farmer (South Africa) suspects that the cases constructed by bagworms cause a blockage (or something similar) in his livestock. Can anyone comment on this possibility? And maybe any...

03 February 2015 8,182 3 View

What can be interpreted from a negative Fst value (-0.05) and a high P-value (0.6) when measuring pairwise Fst between 2 populations (mtDNA cyt b)?

Is the negative Fst value effectively 0.0? And why would P value be so high? Compared to Fst tests between other populations where P < 0.05.

23 October 2014 9,083 9 View