How to Detect Water in THF (Tetrahydrofuran) ?

Hello, we have solvent purifier system in our lab. But There is some unwanted results for our experiment. We are suspecting purity of solvents. Are there any simple methods to detect water in THF?

19 November 2020 114 5 View

What is the best way to combine Landscape Architecture and Entomology?

I am trying to find a topic for my PhD thesis. I've done two MSc; one in Landscape Architecture (about Ecological Landscape Design and Permaculture) and one in Forest Entomology (about...

21 April 2020 5,286 2 View

If an animal feeds mainly on algae but also eats cyanobacteria and insects, which group does this animal belong to; herbivore or omnivore?

I wonder if a fish (Random sp.) feeds mostly on plankton but also consumes cyanobacteria and some insects (Chironomidae, Simuliidae) at much lower rates, can we classify them as omnivore?

03 March 2020 8,177 4 View

How does the amount of amino acid exceed the amount of crude protein in fish meal (Dry matter basis)?

I read a SCI article where the author analysed several fish meals' amino acid profiles and crude protein levels. I.E., The findings indicate that the crude protein level is 79.50g/100g for fish...

16 July 2019 2,039 6 View

Which one should I choose from the results of a sample with different amino acid analysis methods?

I have a protein source with varying results of amino acid profile. For instance; when the sample is hydrolysed with "6 M HCI" L-Valine level is 0.24g/100g whereas it is 3.08g/100g when...

23 February 2018 5,648 2 View

What is the difference between higher order (second order) confirmatory factor analysis and bifactor analysis?

24 July 2017 5,178 5 View

How to determine total RNA concentration when you have large amount of miRNA?

I am isolating total RNA with miRNeasy micro (PBMCs) miRNeasy serum plasma (serum) and exoRNeasy (serum/exosome) for Next Gen Sequencing for miRNA. I believe my final product should contain mostly...

30 March 2016 3,006 4 View

How can I do a reaction between polyamine and lipoic acid NHS ester in an organic solvent?

I want to do this reaction but as far as learned from literature, NHS ester-amine reaction is done in a phosphate buffer solution between pH 8 to 9. However, lipoic acid modified polymer...

27 June 2015 1,731 3 View

An economic method for the fluorescent labeling of PCR fragments?

I have a trouble with my pcr reactions and i want to ask you where is my fault.I designed six primer pairs according to Schuelke's M13 methods but I did not get any reaction.One of my primers...

23 December 2014 4,623 5 View

What is the reason for different fold changes in gene expression from independent experimental repeats in Real-time PCR experiments ?

25 October 2014 7,228 3 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View