Which transfection reagent is the best for plasmid transfection of MDA-MB-231 cell line, Lipofectamine based or other reagent suggestion?

I try to transfect MDA MB 231 cell line with a plasmid by PEI, unfortunately, the rate of transfection is low, and now I wanna find and order the best transfection reagent for this cell line and...

19 February 2021 828 6 View

Could you suggest how can I count the floating point operations(flops) in the MATLAB codes?

Computational costs are important in numerical methods, as if they were obtained by counting the number of operations(flops). The order to count this number has been asked by MATLAB that I have...

22 August 2019 3,046 8 View

Calculating Potential of mean force (PMF) using SMD trajectories!?

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25 February 2019 4,297 1 View

Compatible forcefield with charmm to simulate a protein containing Trimethyllysin!?

Hi all, I am trying to simulate a protein containing a modified Lysin : Trimethyllysine. I am a NAMD user and I couldn't find a proper forcefield (topology and parameter files) with charmm yet....

02 December 2018 4,619 8 View

How should I define "non protein" parts of PDB in Parameter file(charmm)?

Hi, I need help with performing a simulation of a ligand and a protein. I am using psfgen code and add a ligand as the second segment but my parameter file couldnt recognize the new molecule...

20 September 2018 2,681 5 View

What is the best alghorithm to superpose two protein? Same in sequence vary in shape?

these two algorithms seems fast and efficient for aligning (superpose) two proteins: Acta Chrystallogr. Sect. A 61 (2005) 478 [doi: 10.1107/S0108767305015266] J. Comput. Chem. 31 (2010)...

18 September 2018 2,024 1 View

Does anyone know that can i use sudan black b instead of sudan 4 in En-face staining of whole aorta?

I don't have Sudan 4 hence I want to know I can use Sudan Black instead of Sudan 4

09 June 2018 5,028 3 View

Temperature control (via langevin) in Steered Molecular Dynamics!?

Dear all, I would like to know about the temperature control in Steered Molecular Dynamics. should I turn off langevin control in steered molecular dynamic? Thank you

05 June 2018 9,862 3 View

Why does my polymer solution tends to stick to the electrode while being imposed to electric field?

when I apply an electric field over my polymer solution it tries to move toward the negative electrode (the distance between the two electrodes is very low) this local movement is different every...

01 March 2018 6,984 4 View

What are the techniques for adherence improvement between polymer thin film (water soluble ones) and metal surfaces?

I need to cover a metal surface with a thin layer of a water soluble polymer and this layer should adhere very well and not separate , also no-toxic ... what are the feasible methods?please...

30 January 2018 6,040 9 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

Hello house, is it necessary to compute Content Validity Ratio (CVR) for an adapted questionnaire pls?

What should one do if he obtains conflicting results between Content Validity Index (CVI) and CVR for items in a quetionnare. For example based on the CVI obtained the items are acceptable but the...

25 February 2021 7,325 2 View