James Sinclair

5 Questions 6 Answers 0 Followers

Questions related from James Sinclair

What are some common challenges and their solutions when designing or implementing a geodatabase?

Recently been asked to describe some challenges when designing or implementing a geodatabase and how the challenges were addressed.

18 March 2020 9,264 3 View

Why is it uncommon (or not possible) for a natural product to have a tert-butyl moiety in its structure?

I recently analysed NMR data for one of my pure compounds and there was a singlet peak (1H NMR) integrating for 18H. My supervisor has said that no natural product comes with a t-butyl moiety and...

02 August 2017 9,133 5 View

Is the bootstrap value the same as branch length in a phylogenetic tree

My knowledge in the DNA field is limited however I need to create a phylogenetic tree in my thesis. I am using MEGA7 to construct a maximum likelihood tree and I wanted to know what the bootstrap...

10 July 2017 3,056 3 View

Can NMR analysis be done on a 0.8mg pure compound? if so, can 2D-NMR be done on it as well?

I have got 2 pure compounds both 0.8mg. One is a white powder-like substance while the other is clear and gooey-like. I had isolated them using HPLC and wanted to know if they can be analysed by...

08 June 2017 1,827 13 View

Is it ok to try and plate marine bacteria "in situ" or in the field?

I will be going on a 2-3 day trip and was wondering if I could just isolate bacteria (from sediments) in the field instead of bringing the samples back to the lab. If I have to bring the samples...

02 July 2015 4,837 6 View