How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 3 View

Can cells be reused after using WST 8/ CCK 8 from Sigma Aldrich?

Hi all, Can cells be reused after I have seed them onto 96 well plates and test them with cell counting kit at OD450 (CCK8) at 12 hours, wash them with PBS x3 and add new media and let them...

24 February 2021 5,072 1 View

How do I change a preprint to published?

I want to know how to change the status of an article.

21 February 2021 1,536 2 View

What buffer to use for biotinylation as alternative to PBS?

I'm looking to biotinylate a protein that precipitates in PBS. The recommended reconstitution buffer for the protein is urea/Tris buffer, pH 7,5 (7 M urea, 5 mM EDTA, 15 mM mercaptoethanol, 20 mM...

04 January 2021 7,681 5 View

Absolute Quantification: Serial dilution resulted in same CT values?

Hello, we are currently working on absolute quantification with SYBR Green qPCR. We excised from a plasmid containing the cDNA, a fragment, which will be amplified by the primers we used in our...

10 November 2020 769 4 View

What would cause Cell Titre Glo assay wells to luminesce less than the media only wells?

Hi all, I'm doing a bunch of Cell Titre Glo assays to assess the effects of several inhibitors on 2 cell lines. Problem is, for some of the wells they seem to be luminescing less than the...

30 October 2020 1,513 2 View

Can you recommend a reliable AMH ELISA for rat serum/plasma?

I am looking for a reliable and sensitive AMH ELISA for use with rat serum (and potentially plasma). Recommendations are welcomed! Thank you in advance.

08 July 2020 3,207 2 View

To what extend do you agree with this proposition on sustainable procurement??

" Picture a world where every product and appliance is environmentally friendly, where every supermarket item is fair trade, where corruption is an urban myth and poverty a long-distant memory....

19 May 2020 1,933 3 View

How Do You Incubate Microfluidic Chips with Cells?

Hello, I am interested in this research field. I have the prototype of my microfluidic chips, but I am having a hard time finding literature that says exactly how they incubate their chips (with...

21 April 2020 3,277 5 View

Meta-analysis on prognostic studies: How to reach an optimal cut-off value?

I'm doing a meta-analysis on prognostic studies. The studies I have included present the following values: AUC, 95% CI, a cut-off value and associated sensitivity and specificity. Also, is it...

01 March 2020 10,001 2 View

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02 March 2021 3,060 3 View

Can anyone help me with the administration of the "Mind the Gap" Scale for satisfaction with transition to adult care?

We are working on a study focused on adolescents' transition to adult care and are looking for a validated measure for satisfaction with the transition. So far the only measure that we have came...

28 February 2021 2,338 1 View

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28 February 2021 9,936 2 View

When is it unnecessary to change organisational culture?

As a former management practitioner, I recall a generally accepted view that changing organisational culture is difficult, so you should only attempt it if the organisational change that you are...

27 February 2021 2,595 8 View

Does RNAiMAX transfection reagent work in serum free medium?

I diluted siRNA and RNAiMAX in opti-MEM and added to the cells which they were in the growth medium. Is it a right way? or should I culture cells in the opti-MEM medium for a while and not in...

26 February 2021 10,041 3 View

What is the best surface to culture cells isolated from a skin biopsy?

Hello, recently I am having some difficulties with maintaining the cell culture of primary cells isolated from a skin biopsy (normal and malignant). The coating of culture plates with Matrigel (a...

26 February 2021 6,151 2 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

Has anyone experienced changes in growth for cell culture when purchasing media from different companies?

I recently switched the company where we buy our DMEM/F12 and i have noticed a signficant change in growth for my human olfactory neurosphere cell lines

24 February 2021 2,268 3 View

Advice on growing lactobacillus species in the lab?

Hello everyone, For part of my PhD project, I'm hoping to grow some lactobacillus species in the lab so that I can create standard curves for a qPCR quantification of a faecal sample. However, I...

24 February 2021 3,157 6 View

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22 February 2021 9,932 11 View