DMAE (deanol bitartrate)- dimethylaminoethanol bitartrate?

Hello all... I m looking for a method for assay DMAE (deanol bitartrate)- dimethylaminoethanol bitartrate in aqueous samples (cosmetic product) using GC- MS mass spectrum HP- 5 ms U.I 0.25...

13 February 2021 7,629 3 View

Can anyone suggest a PEG replacement in toothpaste formulations?

I am aware that PEG has unique properties however I am just reaching out there to see if anyone can suggest a valuable replacement. I was thinking Na PCA. Thank you

16 March 2020 2,729 3 View

Why did you publish our MN without our pemission?

Dear Sir/Madam, this is an e-mail that I am going to send to your attention. It is mandatory that you cancel from your web site our manuscript submitted to the journal Cells. The manuscript...

16 April 2019 1,611 1 View

How would you interpret p-value using Egger's regression test?

Do you believe p-value

20 November 2017 5,225 7 View

Why i can't transfect huh-7 cells with an ad5 adenovirus vector?

06 April 2017 4,301 2 View

Does anyone knows how to clean a silver foil working electrode from any organical traces?

07 January 2016 6,026 6 View

Which is the best method for attaching CeO2 nanoparticles in graphene oxide hydrogel?

I have prepared graphene hydrogel from aqueous dispersion with ascorbate acid.

19 November 2015 8,658 3 View

European funds for research on the topic of the research is "Pescetarian diet in the prevention of breast cancer recurrence", anyone wants to join?

hallo I'm looking for anyone who wants to join an european call for funds. The topic of the research is "Pescetarian diet in the prevention of breast cancer recurrence" Anyone interested? thanks

19 July 2015 2,451 5 View

Range normalization in a semi-structured interview

Hi, I have data from a semi-structured interview called BPASS, my problem is that the coding system for some questions range from 1-5 while for other questions it ranges from 1 to 4. Now I wanted...

19 October 2014 2,645 2 View

Alternatives for elution and neutralization of antibodies from Protein G?

We are exploring alternatives for elution and neutralization of antibodies from Protein G. We require buffers free of primary amines. Does anyone have any positive experience with conditions other...

16 September 2014 449 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

How to model the battery pack in PSIM or PSCAD?

Hello, I have simulated a single battery cell using Thevenin equivalent circuit. For a battery pack, I have a large number of cells connected in series and parallel connections. Is there any way...

28 February 2021 2,116 1 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 3 View

High aspect ratio hexahedral mesh optimization solver?

I am interested in evaluating mesh optimization solvers that converge to high aspect ratio unstructured hexahedral grids. In other words, I am interested in a solver that optimizes warpage,...

26 February 2021 7,279 2 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

Anyone with some Transgenomic Wavemaker software? Seeking help from the chromatography community?

I am trying to seek out some Transgenomic Wavemaker software (happy to purchase a computer too) to operate a fraction collector. The only way to connect to the fraction collector so far is to...

23 February 2021 9,181 1 View