How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

How to analyse data without control group in meta-analysis?

I am interested in knowing the treatment effect in my study. I have data (mean, SD) for pre and post treatment.

01 March 2020 3,572 2 View

The pH differential method - how do i calculate the concentration of anthocyanin in a dried extract?

27 February 2020 9,573 5 View

How to begin slicing sections after a period in cryoperservation?

I have preserved large sections of sheep brain tissue in an ethylene glycol solution for later use. I'm hoping to take the sections out of solution and then slice on a microtome or cyrostat. How...

29 January 2020 1,884 3 View

Is anyone aware of a study that compares the discourse around intra-European mobility and integration for Eastern and Western Europeans?

I am looking for a study that compares the discourse around intra-European mobility and integration for Eastern and Western Europeans. Mobility of Western Europeans is not addressed in public...

20 August 2019 3,036 2 View

How does one calculate the % metal extraction, distribution ratio for each pH value, log D and pH1/2 from log D vs. pH plot from AAS results?

21 May 2019 8,115 3 View

In how many days maximum should I change the medium (L15) of breast cancer cells ?

01 February 2019 9,569 2 View

Does anyone know of some working antibodies against EEA1?

I am looking for a good antibody to label early endosome of mouse cortical neuron.

18 November 2018 3,875 2 View

Have you used Covidence for systematic reviews before?

I came across Covidence for systematic reviews, which is the tool of choice for Cochrane, and was wondering if actual users can share their experience with the tool. It looks like a pretty...

06 August 2018 8,846 11 View

What would cause squared multiple correlation to be greater than 1?

I am testing a SEM model and one of my endogenous variable is defined by two observed variables (GPA and ability). The problem is that the squared multiple correlation being returned on GPA is...

21 June 2018 5,335 5 View

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

03 March 2021 8,272 1 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 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

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View