Can the Dunn's test be used as an appropriate post-hoc for the G-test?

Research Question: Are red grouse (Lagopus lagopus scotica) a statistically significant proportion of raptor (bird of prey) diets? I am planning on using a series of G-tests (determining whether...

23 February 2021 5,827 3 View

Can anyone provide an advice on running a validation study of a commercially available product in collaboration with the manufacturer?

We are planning to run a study validating a commercially available product (i.e. software) and while we initially planned to do it independently of the manufacturer, they heard about our intention...

17 February 2021 2,295 3 View

How do I run a multinomial logistic regression with four independent variables and a moderator in SPSS or Stata?

I have four independent variables that are all scales (in SPSS). My moderator is dummy coded and my dependent variable is multinomial and coded as 1 - 2 - 3. The moderator moderates all four...

16 November 2020 8,293 3 View

Who are the leading academics in the field of employment focussed assistive technology in low to middle income counties?

I am looking for academic research / publications and potentially people to speak to or interview in the field of assistive technology. Specifically assistive technologies that are approporiate...

04 November 2020 3,354 1 View

How to quantify cellular B-actin?

Hello community, I have stained my tissue for actin by Phalloidin staining, but now I would like to quantify actin concentrations in my samples. What would be a good method? Thank you!

03 November 2020 3,160 2 View

How does one determine the limiting Saturation values for inorganic additives in aliphatic polyketone?

I am working on a compound development project which requires the addition of atypically high levels of inorganic stabilizers in an aliphatic polyketone resin. Melt processing evaluations of...

22 September 2020 5,828 1 View

Non-aqueous, non-aggregating, electrically conducting nanoparticles - do such materials exist and who supplies them?

I have been looking for any type of non-aggregating, electrically conducting nanoparticles that are compatible and will remain suspended in non-aqueous solvents e.g. toluene. Traditionally carbon...

16 July 2020 8,768 3 View

When and why to use between estimator regression?

Dear all, I would like to collect some thoughts and opinions on when and why one should/could use the between estimator regression. I have only recently learned about this method and find it to...

13 July 2020 9,124 1 View

What is the effect of colors on children?

I am currently for maths project creating a card game that focusses to improve subitizing for students' age between 6-9 years old. I now want to create the 'best' colors for the game but I am...

30 March 2020 9,084 5 View

SPRI-Bead DNA extraction of Juvenile Zebrafish - Is it eumelanin and how to I get rid of it?

Ahoy, I am performing SPRI-Bead extraction of 29 day old (whole) Zebrafish. The euthanized and frozen fish are digested for 2-5h in 20mg/ml Proteinase-K in TNES buffer. This leaves me; depending...

30 January 2020 1,007 1 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

Are there lab markers/pens resistant to Roti-Histol?

Hi, I'm looking for a pen/marker to write on the smooth, transparent (non-frosted) part of microscopy slides which does not get washed away by alcohols and most importantly Roti-Histol. I want to...

24 February 2021 9,902 5 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

I have a problem with kanamycin - why the kanamycin doesn't affect?

Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...

22 February 2021 4,032 4 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View