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

After staining a gel with coomassie can I stain the same gel with fluorescent dye?

I want to know if it is possible to be done the inverse to view / verify other bands that not look in staining a gel with coomassie.

01 February 2021 8,647 5 View

Does maternal potentiation work?

Has anybody been able to replicate finding of papers that show increased vocalization in mice pups after a brief period of interaction with their dam, also called maternal potentiation? We have...

11 January 2021 558 2 View

No title

02 January 2021 7,172 4 View

Anybody know how can I analyze differences between groups vocalization syntax using the transition probability between syllables?

I have been using a MATLAB script called DeepSqueak to analyze vocal communication in mice. One of the outcomes of this analysis is the transition probability between the different syllables that...

09 December 2020 1,525 1 View

How to run a correlation matrix for mixed variable types to determine regression covariates?

I have a large and broad dataset with many possible covariates that are both categorical and continuous. I planned to run a correlation matrix with the DV and all possible IVs to determine the...

23 November 2020 2,593 4 View

Is there a way to write a regression table from R with coeffecients, se, p, odds ratio, and CIs?

I have rather robust data and would like to write my regression outputs to a "journal ready" format from R. At the moment, I have gotten the outreg package to work in getting the coefficients,...

17 November 2020 973 3 View

How do we use adjusted prevalence rate (aPR) in a meta-analysis?

Hi, I am doing a meta-analysis using Review manager determining association between increase in pollutant concentration and the risk of a particular disease. Majority of outcomes are reported as...

20 October 2020 10,012 3 View

Can you run a hierarchical regression on a linear mixed model?

I am trying to determine which would be the best model type to run on my data. After reading through this chapter's introduction, it seems I would be best suited to run a hierarchical regression...

18 October 2020 3,853 3 View

What do you think are the factors affecting the Online Collaborative Approach of the teachers in today's situation?

This is research-related question.

05 October 2020 4,606 4 View

How can I quantify the color of a solution?

I know colorimetry has been the standard way by way of measuring the concentration of a particular compound (solute) in a colored solution (solvent or measure quantities of a particular compound...

08 February 2021 2,673 1 View

Can someone explain why my A260/A280 ratio is lower than 1?

We are conducting a measurement of Ribonucleic acid from baker's yeast (S. cerevisiae) (Sigma-Aldrich R6750) concentration using Eon Biotek Microplate reader. We dilute the RNA in various...

24 January 2021 9,830 3 View

Does anyone grow Mycobacteria in TECAN Spark machine to get growth curves? What setting is necessary? Any tips (use Tween20 or tyloxapol?)?

I would like to grow Mycobact. Smegmatis in 24well plate in TECAN Spark machine. So far, I was using 100ml erlenmeyer flasks with 20 ml bacterial culture w/ shaking 180 rpm in 37C . Tecan would...

10 January 2021 6,624 2 View

Any suggestions on 50um cryosection immunostaining (growth plate) ?

Hi everyone I am working on immunofluorescence of cryosection of murine growth plates. The Ab worked well on 8um cryosection. But when I stained 50um section, I found the fluorescent signals...

03 January 2021 9,531 3 View

Should I normalise data when measuring fluorescence intensity ?

I'm measuring fluorescence intensity of the product in an enzyme reaction in 37 celsius degree. I set a kinetic measurement in 1 hour. The fluorescence intensity of the BLANK ( contains only...

03 January 2021 5,554 5 View

.In my results the slope of curves got from Microplate reader is seems less (less than 1) and negetive some times. What is the reason for that?

In my research I'm enumeraring the florescence intensity (FI) Vs E-coli concentration in river water. I measure FI by Tecan I control 200 pro and E-coli by Membrane filtration.

03 January 2021 2,991 3 View

Has anyone measured split YFP in a Tecan (Bimolecular Fluorescence Complementation)?

Hello, I've been trying to measure split YFP-constructs using a Tecan. The problem is, i can detect YFP as a whole construct without any problems (so the excitation/emission wavelengths are fine)...

15 December 2020 2,209 1 View

Is it better to normalize Nile red absorbance to Bradford assay or to cell number?

I stained the fat droplet inside the cell using Nile red and read the absorbance by a microplate reader. Which better to do, normalize the Nile red absorbance to Bradford assay or to cell...

12 December 2020 8,036 2 View

Assay with absorbance/fluorescence readout?

I'm setting up a liquid handling robot and need a simple assay to test it. Ideally I would like to mix 3-4 reagents and have a absorbance/fluorescence readout on a plate reader. It's also possible...

11 November 2020 7,645 3 View

Assessing CoP by means of 3D motion capture system?

Hello, I would like to measure the postural control/weight shift during step initiation, especially by mean of CoP. For equipment, I am considering using a 3D motion capture system rather than a...

08 October 2020 5,876 3 View