Can mycoplasma contamination in primary neuronal culture interfere with neuronal growth?

I am doing primary neuronal cultures (mix of neurons and astrocytes) from mice. One year ago we moved and changed labs and since that time I am not able to grow nice neurons (either they don't...

30 September 2020 2,517 1 View

Does anyone have experience with the Menstrual Attitude Questionnaire?

I am considering of using the original one from Brooke-Gunn and Ruble (1980), but maybe there is something better? I am trying to analyze the attitude of athletes towards menstruation and its...

27 August 2020 6,541 2 View

The compensation procedure- beads (for fluorochrome) and cells (dead/live staining)- how to do it?

Hi, I would like to ask about the compensation procedure. I use Fortessa/ Diva and automated compensation procedure. I have a set from BD for compensation setting. Referring to the manufacturer...

28 February 2020 8,765 2 View

What standardised psychometric test to use for self-efficacy for female athletes?

Hello, I am looking for a valid and standardised test to measure self-efficacy of female athletes for my doctoral thesis. Any suggestions? Thank you

14 November 2019 849 3 View

What is the best recommended growth and freeze media for SH-SY5Y cells?

I received SH-SY5Y WT cells and started growing them in low glucose DMEM with FBS and S/P. After reading article about changed cell morphology and detachment of cells from growth surface due to...

06 October 2019 1,475 2 View

Why can't I load my purified pcr sample from a gel to another gel to confirm purification The product evaporates out of well before I can run the gel?

23 July 2018 3,700 8 View

Why all phages in ELISA are positive?

I perform 5 biopannings rounds and then did ELISA with the 'soup of phages' from each circle (coating with specfic antybody, then phages and antiM13). Biopannings from 1-4 had really low OD but...

18 June 2018 915 3 View

Does anybody has an experience with human serum depletion prior to MS- or electrochemical analysis?

12 March 2015 8,710 5 View

Does anyone use a thermo-desorption technique for mercury speciation in solid samples?

22 February 2015 9,352 11 View

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

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View