What should I do for my controls not to stain my secondary antibody ( IHC for mice muscle) ?

I am staining mice muscle for macrophages (CD68) and lymphocytes (CD3). The challenge that am facing is that my control is also staining with the secondary antibody even though I did not add the...

15 October 2020 8,139 3 View

Triangulation of data sources in qualitative research: Do you consider it mixed methods research and why, whether its a yes or no?

It is common in qualitative research to interview for example patients and their partners or their health professionals to talk about the same topic and explore the perspectives of all the people...

30 July 2020 538 21 View

How do i determine the sample size for a study looking at the treatment outcomes of mental health patients in a community house ?

How do i determine the sample size for a study looking at the treatment outcomes of mental health patients in a community house that is a step down from inpatient unit. The study will look at...

12 May 2020 7,072 3 View

Who can link me to Cost / Benefit Analysis of Treatment Options for Produced Water of varying quality and quantity?

I work in the oil industry and I wish to focus on reducing reinjection of "free" (non-water right controlled) produced water for beneficial use where economics dictate feasibility. Who can direct...

24 February 2020 3,059 2 View

How is confirmatory factor analysis not just a tautology?

Hello, very new to confirmatory factor analysis (CFA) and structural equation modeling, and I'm trying to understand how to think about confirmatory factor analysis. Suppose I have a construct,...

11 November 2019 3,330 4 View

How to deal with member check conflicts in qualitative research?

Member checking or participant checking is done to validate and improve the credibility of quallitative research results. I am planning to ask my participants to help with that (will ask them to...

27 May 2019 7,799 13 View

How do you create a calibration curve for H2O2 ?

Specifically I'll be looking at H2O2-titanium complexes (in plant tissue) and will be measured @ 415nm. I'm wondering how I can create a calibration curve for the complex... I have 30% H2O2 and...

13 December 2018 4,432 3 View

Improvised abacus? Are there Latin references to betting at Roman amphitheatres, or modern references to Roman use of abaci? Or was it a gaming board?

11 June 2015 1,010 68 View

Do we have instrument development experts among rehabilitation professionals in Sub-Saharan Africa?

It has been noted that clinicians in Africa are forced to use instrument measures that were developed and validated either for American and European children which are quite limited. It is...

01 January 1970 528 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 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

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 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