Does someone know which statistical test I should use to compare these groups having a categorical dependent variable?

I have two groups (10 participants in one and 12 in the other), each one viewed 1 stimulus (web page that present 4 products to choose between). One of the web pages has an orange label under one...

31 March 2020 2,812 4 View

How can I get started with PIC code simulation?

I've already asked a question like that and followed your advice. I started studying: Plasma Physics via Computer Simulation (C K Birdsall and A B Langdon) but I really think that I need again...

21 October 2019 6,835 3 View

How to transfect murine primary bone marrow cells with retroviral vector?

Hello, I am planning to infect murine primary bone marrow cells with retroviral vectors. Does someone have experience or protocols to suggest? any kind of suggestion is really welcome! Thanks...

30 July 2019 932 3 View

How do I test my (stimuli material) independent variable against the dependent variable on SPSS?

Hi all, I am currently writing my dissertation and I am struggling to analyse my survey in SPSS. I hope you can help me. I have created one survey, with 3 different stimuli material....

02 March 2019 9,851 1 View

Where can I find references about real topological vector spaces such that all vector subspaces are closed?

My interest is in characterization of spaces described in the question. Clearly the interesting case is about infinite dimensional real vector spaces.

31 January 2019 1,498 8 View

How do I remove debris from a beads suspension?

I have a suspension of 40 um beads (2 mL at 400 beads/uL) and I noticed that there are a lot of debris in it. I need to remove them as much as possible to obtain a suspension with no or few...

23 October 2016 7,569 3 View

Does anyone know a protocol for DNA extraction from saliva, hair and blood from dog?

Hello everyone, we are looking for a protocol to build up for the extraction of DNA from saliva, hair and blood samples collected from dogs, since extraction kits are not suitable for canine...

29 September 2016 4,382 6 View

Adhesion problem with beas-2b?

Hi everyone, I have adhesion problems to flask when I thaw the Beas-2b cells, someone has any advice for me? someone would be willing to give me a aliquot? Thank you Tommaso

05 April 2016 2,990 2 View

Does anyone know an updated gene ID converter?

Good morning to everybody, I am working on gene expression with a pattern of about 20,000 genes from Bos taurus that are encoded with a RefSeq mRNA ID. In order to use a program for the impact of...

03 September 2015 267 9 View

How does the length of the shortest path *in T* from node h to node k (if any) grow with their 'numeric distance' (k - h)?

15 September 2014 9,745 3 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 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

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

IF troubleshooting: looking at an intracellular protein that localizes to the cell's and how to reduce increase in signal due to cell ruffles?

I am currently trying to stain for PI3KBeta in MDA-MB-231 cells. My current issue is that 1) beta stains all over the cell and 2) there is an increase in signal at the edge of the cell and this...

24 February 2021 8,582 1 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View