What is the red autofluorescence in my HL60 cells?

A subset of my HL60 cells has red autofluorescence in the far red region (FL-3 > 670 nm). I first noticed this some months ago when I was checking an antibody with a PE-Cy5 tag by flow...

06 December 2020 6,005 2 View

Best ways to collect saliva from guinea pigs?

Hello, I am planning a reserch which involves analysis of saliva cortisol in guinea pigs. Unfortunately, I am currently having trouble collecting saliva samples from my guinea pigs. I am not able...

30 September 2020 9,226 1 View

Transfection in HFL-1 cells?

I am trying to transfect HFL-1 cells with a plasmid DNA. I used Lipofectamine 3000 from ThermoScientific, however the cells seem to react quite sensitive to the transfection (tried different...

17 November 2019 484 2 View

Is there a full list of scales from the FOCUS Questionnaire (van Muijen et al., 1999)?

Hi! I'm currently working on my Master's thesis and looking for the evaluative scales for the innovation and rules value orientation from the FOCUS Questionnaire developed by van Muijen et al....

05 May 2019 4,039 3 View

Western blot - What can be the reason of distortion in the upper part of gel?

My samples are not resolved properly in the upper portion of gel - particularly in the higher molecular weight range - above 50 kDA. The same samples were loaded onto 4 independent gels giving...

23 October 2018 1,543 2 View

RT PCR - Why are my fluorescence values not platouing at the same hight?

Any idea why are my fluorescence values not platouing at the same hight? The Cq values for the technical replicates are below 0.2 and in most cases below 0.1. Does the fact that the samples are...

02 August 2018 7,204 3 View

I have putted the 10fold amount of 2-Mercaptoethanol in my stripping buffer by mistake. Does anyone have experience with such a mistake?

I think my proteins on the PVDF membrane are gone, because there is nothing to detect anymore. But on the other hand the membranes smell after a lot of washing procedures still of 2-ME. Maybe my...

18 July 2018 171 3 View

How to find the closest relatives within a large protein family?

I am looking at a protein which has close to 200 other family members but I do not seem to be able to identify the closest relatives belonging to the same subgroup. How do I boil it down to max 10...

17 February 2016 2,371 3 View

Is there any relevance theoretical work that addresses the question of folk psychology?

This question is in connection with an article I am writing. Relevance theory seems potentially helpful for my argument, but I need to find work that explicitly addresses the link between the...

28 September 2015 8,493 3 View

Can anyone provide advice on how to model age captured in categories within SEM?

10 July 2015 4,972 15 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

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

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View