Gromacs 2020: how to make distance restrains for 2 atoms in different protein chains?

Sorry, I think it is rather simple problem to solve, but I am stuck on it. I have 2 protein chains, so I have 2 *.itp files for them that are loaded in topol.top. What should I do to use distance...

01 December 2020 1,496 1 View

Different Ct in qPCR with three sets of reference genes primers (each ref.gene is a single copy per genome), with the same template - is it normal?

I am trying to build up 3 standard curves for 3 sets of primers for different reference genes, in order to later use one with the best efficiency. (for SYBR green qPCR, gene copies number...

27 February 2018 8,313 3 View

QPCR with SYBR green - should the amplicons (GOI and reference) be the same length ?

Do I understand right: when running qPCR with SYBR green detection, it is important that two amplicons (GOI and reference gene) should be of the same lenght ? Once It is supposed to be relative...

07 February 2018 4,678 5 View

How do you assess the efficiency/ rate of mutagenesis, when you plate your culture on the selective plate (e.g. canavanine or 5-FOA) ?

After the chemical or UV mutagenesis, the yeast culture is supposed to be plated on the selective medium with canavanine or 5-FOA in order to assess the efficiency of mutagenesis. The questions...

04 January 2018 4,813 3 View

How to do non-water solvent parametrization for Molecular Dynamics?

Currently I need to parametrize some simple F and Cl containing solvents to use them in Gromacs. The problem is that common force fields do not contain atom-types I need, so while understanding...

18 October 2016 7,283 3 View

Could I expect any quantitative difference in EDX results, if the analysis is performed on SEM/TEM samples (same steel and area)?

INCA (Oxford Instruments), X-Max 80 Cr-Ni stainless steel

16 May 2016 7,436 9 View

How to solve the structure of a complex in crystallography?

22 February 2016 2,615 3 View

Could anyone help me with continuous casting modelling in Abaqus ?

11 October 2014 246 1 View

Diabetes data set for ANN

Hello. Can anyone help me with some useful data for my Master's diploma? I am making an Artificial Neural Network for prediction diabetes. I know about some open data sets like Pima Indians,...

01 January 1970 6,480 2 View

How to avoid fake journal articles published under your authorship without your permission?

01 January 1970 726 4 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

How Can I clain a removal of a co-author?

I would like to make a correction in a co-author in your paper which is wrong. This name is also in other papers of Kenton Ko. Zey Ko is not a Co-author . The correct name is Zdenka...

24 February 2021 3,476 4 View

How does the injection volume impact LLOQ and ULOQ in regression analysis (LC-MSMS)?

Hello, I have run into an issue that has sparkled a debate at work: is the LLOQ/ULOQ impacted by injection volume under the following circumstances: 1) Same dilution factor of all samples 2)...

23 February 2021 9,159 3 View

Difficulty in debugging code to correct error - TypeError: '<' not supported ?

I am trying with a Unet code ontained from net ...in tensorflow. When trying to predict the segmentation result with the trained and saved model with metric " iou" using "CustomObjectScope"...

22 February 2021 5,254 1 View

How to perform Haldane correction on SPSS?

I was wondering if anyone knew how to perform the Haldane correction for SPSS (this is the definition of the correction -...

21 February 2021 2,882 1 View

Can I arbitrarily take a cycle number of 40 for the gene that was not expressed at all in qPCR results calculation?

I ran RT-qPCR for a control and a treated group and it appears that my gene of interest was not expressed at all in any of the subjects in the control group. So I was wondering if I could...

20 February 2021 6,243 10 View

absorption= 1-mag(S(FP1:1,FP1:1)*S(FP1:1,FP1:1))-mag(S(FP2:1,FP1:1)*S(FP2:1,FP1:1)) is it correct for absorption ?

hi everyone I am simulating a unit cell structure in HFSS using Flouquet port having two modes for absorption I have used this formula:- absorption=...

17 February 2021 9,178 2 View

How can I calculate the magnetic force applied from a magnet (no electrism)?

I would like to calculate the magnetic force on a Fe304 particle which is into a liquid solution . The magnet is above the solution , and there is no electricity. I found this formula : F = (V...

13 February 2021 4,770 3 View

What is the best way to do symmetry in ANSYS Fluent for flow between two concentric cylinders ?

I am working on Taylor Couette flow between concentric cylinders and the results are correct for the full case. however, I wanted to do symmetry case to improve the mesh. I have tried periodic...

11 February 2021 2,193 6 View