What test is proper for detecting the relation between two nominal variables?

We have two nominal variables: diet and location. We want to know whether the diet of the species differs in various locations. I know it is possible to do it by chi-square, but I also have seen...

24 October 2020 7,162 14 View

What software do you suggest for optical simulation?

I need to simulate faraday effect

10 October 2020 2,649 3 View

Does a linear polarization of light can be decomposed into the superposition of two equal-amplitude circularly polarized components ?

what are the mathematical formulation?

27 September 2020 9,838 7 View

How to do confirmatory factor analysis for a retrospective pre-post test questionnaire?

I've done a pilot test with a retrospective pre-post test questionnaire to measure changing in attitude. Now I want to enter the data collected from questionnaire in SPSS to do a confirmatory...

21 September 2020 7,726 6 View

Isolation of Mouse Monocytes for ADCC?

Hi All, Immunology novice here, looking for some advice on mouse monocytes. We are looking to isolate mouse monocytes suitable to demonstrate In vitro ADCC. we tried out two methods: Mothod 1:...

17 September 2020 2,076 3 View

What is suitable sample size calculation method while using SEM?

My population is all people above 18 years old in the country, so I think this is an infinite population. Is it suitable to use Cochran formula for sample size calculation while I want to use SEM...

02 August 2020 1,029 6 View

Why the performance of ArcGIS occasionally changes when the output is not specified to be created in the default address?

Hi everybody I have noticed that sometimes while working with some commands in GIS I don't get the results I expect. Then I do the same process exactly in the same manner except for the output...

17 February 2020 5,601 9 View

What is the best method to labrotary measurment of water surface level in a channel?

I am searching a best method to measure water surface level in a experimental flume(channel) with some obstacles which is located in the centerline of it.

29 May 2019 9,125 6 View

How is a nanostructure butterfly-shaped used in drug delivery? And what is the purpose of various forms of nanostructure robots in drug delivery?

I think that the use of different forms of carriers in drug delivery applications may be due to the difference in drug loading or its efficacy.

23 February 2018 9,484 2 View

Where can I find 0.1 Thymol solution for extracted teeth storage?

I am performing an invitro study and need a storage solution.

20 October 2017 2,952 2 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Is there an ideal incubation time of RGO-modified SPCE before subsequent use, i.e., electrochemical characterization or further modification?

I notice that upon washing and air-drying of my RGO/SPCE surface and characterizing again via DPV, the current response towards ferricyanide probe significantly decreases. My worry is that the...

22 February 2021 5,324 3 View

No title

22 February 2021 9,932 11 View

How to dissolve cross-linked Amberlite IRC120 H, hydrogen form resin?

Hello all, I have used Amberlite IRC120 H, hydrogen form acidic cation-exchange resin for the ion-exchange of waterglass [sodium silicate solution -- 40% Sodium silicate (mol ratio > 3.2)...

21 February 2021 5,614 3 View

Can anyone help or comment on solubilising chlorobutanol in aqueous injections in minimum time possible?

Please suggest solubilisation of chlorobutanol in injections. Tried pH and high temperature. But the issue is of assay drop. If anyone can suggest any solution. Its a commonly used excipient for...

21 February 2021 7,397 1 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View