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

02 March 2021 7,082 3 View

What test should I use to compare two or three means, if data is not normally distributed but sample size is > 30 in each group?

I personally feel this as a most confusing question. As per my understanding, if sample size is > 30, and sample is skewed, we can still use paramteric approach, as it will follow Z...

01 March 2021 1,587 6 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Efficiency of Proximity Feed Patch Antenna ?

Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...

24 February 2021 7,662 3 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

Monte Carlo simulation?

Hi, i am conducting a Monte Carlo simulation for my new distribution but the MSE values are increasing while the sample size increase, does any experience this issue before and what should i do...

22 February 2021 3,680 4 View

What should a smart water system look like?

Our team is designing a smart water C&C dashboard for a smart city initiative. As we look into the current smart water system landscape, we couldn't reconcile to a definitive solution that...

16 February 2021 1,094 3 View

Is There are any idea to achieve H NMR signals for swollen compound ??

the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please

16 February 2021 8,801 3 View

Which is the best wavelength to study aerosol optical depth(AOD) related to climate reseach,which criteria must be adopted in choosing the wavelengh?

We are doing a study on impact of aerosol on precipitation. Which satellite data and which wavelength will be the best. or can some one suggest a criteria to be adopted to choose an instrument...

12 February 2021 6,324 3 View

What is causing the raw fluorescence to be negative?

Hi everyone, I would really appreciate it if someone can tell me when and why a raw fluorescence starts below zero. In the picture attached below the blue colour curve starts from a negative...

09 February 2021 4,642 3 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

Antibody anti-IgM Bovin conjugated Biotin ?

Hi everybody, Can anyone please suggest me an antibody anti-IgM Bovin conjugated Biotin ? I would like to use it in LUMINEX with a streptavidin conjugated phycoerythrin reporter. Thanks in...

25 February 2021 9,659 2 View

Questio regarding micro/nano particles fabrication ?

I will start to fabricate micro/nanoparticles for growth factor release and I check out a procedure quite nice, however, it is lacking some details and since I don't have much knowledge doing this...

20 February 2021 199 2 View

How to successfully revive cells stored at -80 degree C for a year?

I am working on C6 cells along with other neuronal cell lines. We have preserved the cells in 90%FBS and 10% DMSO solution. We are reviving the cells after a year and cells are either not binding...

18 February 2021 4,499 1 View

Why does flow deformation occur at the test line and control line on nitrocellulose membranes (LFIA)?

I use 1% BSA in 10 mM phosphate buffer (pH 7.4) solution when striping my nitrocellulose membranes with antigens and antibodies. However, I always observe deformed flow when my sample or running...

16 February 2021 4,224 3 View

What is a suitable method to freeze feeders-free, serum free episomal hiPSC?

Hi everyone, I need your professional advice: I started growing episomal iPSC (commercial cell line). I grow them in StemFlex medium. What would you recommend as the most effective freezing...

07 February 2021 8,591 4 View

Endothelial Functional Assays & Conditions?

Hi everyone, I would greatly appreciate it if someone can shed light on certain endothelial functional assays and their conditions. I often notice that protocols are run with serum-free media, or...

05 February 2021 7,276 1 View

What is the best visualisation solvent for xylooligosaccharides using TLC?

I am interested in using TLC to detect non-linear xylooligosaccharides. What would be the best visualisation solvent? Would aniline phthalate solution be suitable? I have also seen people...

02 February 2021 7,748 3 View

Moving bacteria-like organisms in my HEK293T cell culture?

Hi everyone, I have been culturing HEK293T cells that have been engineered to overexpress the mechanosensitive protein Piezo1. However, I am finding it very difficult to keep them in culture -...

02 February 2021 7,892 4 View

Freeze/Thaw of LS174t cells?

Hello World, I have been working with LS174t. Complete Growth Media- 10% FBS/EMEM. ATCC says to freeze with 5% DMSO/CGM. when I defrost my vials, they are not attaching to flask. vials put into...

01 February 2021 8,723 2 View