What is the best way for mobility estimation in GROMACS?

I need to estimate the mobility of some atoms in the molecule within a molecular dynamics simulation and compare the values for different simulations. I use trjconv -fit rot+trans to fit C-alpha...

19 January 2021 531 3 View

How can one calculate difference between normal pseudo-solution and exact one?

Dear collegs, Let us have a linear system: Ax=b, (1) A is a matrix of (N,N) shape, b, x are vectors of N shape. We decrease number of equations to form a underdetermined system: A'x=b', (2) A' is...

11 November 2020 8,549 2 View

How is theoretical proportion of the total organic carbon of PLA (polylacitc acid) ?

Dear Sirs, I have measured the proportion of the total organic carbon (TOC) of polylactic acid (PLA) method DIN 19539. The results are 35,1%. Is it correct? How is the theoretical proportion of...

04 November 2020 6,598 1 View

Is there any monthly or bi-monthly 'free' Scopus or SCI indexed journal?

Looking for a fast-track journal to publish one of my papers in the field of image processing for non-hodgkin leukemia cancer cells detection method.

02 November 2020 5,289 3 View

How long do the antibacterial coatings work?

Dear all, I am looking for publications dealing with the long-term stability of antibacterial coatings. I need to know if the coating still works even after months or years. The latest term I...

06 October 2020 1,726 5 View

Someone has replaced the abstracts of my papers by entirely wrong texts. How can I correct this?

This appears to be a pure sabotage. Someone has thrown out my abstract - so far I discovered two - about scarce rationality, and about institutions in evolutionary economics - and replaced...

17 September 2020 1,994 3 View

How to statisticaly analyze distribution which is very skewed to low values (like Pareto distribution or similar)?

I have results of porosity analysis from CT data which is a very skewed distribution (looks like Pareto distribution or similar). I have data from a few samples which I want to compare about the...

14 May 2020 9,595 9 View

Which social media monitoring system do you prefer in your country?

Hello, colleagues! Which social media monitoring / listening system do you prefer in your countries? In Russia we mostly use Brand Analytics and Youscan.

23 January 2020 4,619 7 View

Why Antennapedia Control peptide inhibits the reactive oxygen species production in human blood?

Hi all, I use MyD88 Inhibitory Peptide (more details here: https://www.novusbio.com/products/myd88-inhibitor_nbp2-29328#datasheet or https://www.invivogen.com/pepinh-myd#about) to inhibit the...

04 January 2020 2,207 6 View

How to estimate a quality of single tracks fabricated by selective laser melting of a new Al-Zn-Mg alloy?

Dear friends, We approached toward SLM of a new Al-Zn-Mg alloy using single track experiment. The initial feedstock powder was ball-milled (not atomized). More than 10 tracks fabricated at...

05 November 2019 7,073 3 View

Gel electrophoresis result for total RNA samples, 1.5 Agarose gel was used, How to improve the integrity of RNA?

Gel electrophoresis, RNA degradation, RNA extraction from fresh tissue

02 March 2021 5,433 5 View

What is involved in morphological changes of SEM images of a substance?

In the sem analysis of CaCO3 nanaoparticles, the morphology images showed spherical shaped particles but the proposed morphology for these type of nanoparticles is trigonal. I prepared the...

01 March 2021 1,960 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

How can Gamma Ray API units be converted to CPS (counts per second)?

Oil and gas companies run gamma ray tool and take readings in API units while Gamma ray is also noted in cps, so how these units can be converted into each other?

24 February 2021 7,545 2 View

Standard curve shifting over time. How do I stabilise the ELISA?

24 February 2021 1,365 3 View

RNA degraded after good nanodrop readings?

23 February 2021 8,850 2 View

Can two EC50 values with different hill slopes be compared?

Hello, I fit a classical dose response curve Y=Bottom + (Top-Bottom)/(1+10^((LogEC-X)*HillSlope)) to my data (not related to inhibitors etc). The model I use is purely qualitative but it fits...

23 February 2021 8,155 5 View

How to get the vector of a specific vibration mode in phonon dispersion?

For example, I have this phonon dispersion(Fig. 1), and now I would like get vector of atoms which describes TA1 in P. I know v_sim can show vibrational animation of specific mode, but I do not...

20 February 2021 4,332 4 View

How can we determine the positive definiteness of multivariable polyomial? Is there any MATLAB function available for that?

Can we check the positive definiteness of a multivariable polynomial using MATLAB functions? Of course in literature, there are few complex methods that use tensor algebra. However, before going...

16 February 2021 1,218 3 View