How to compare means of continuous data with zero-inflation and skew?

I have two groups (unpaired) of plant biomass measurements and want to know whether there is a test that can be used to determine statistical significance where assumptions are not violated. The...

18 February 2021 1,258 4 View

Fluo 3-AM in pancreatic beta-cells?

Dear all, I'm trying to understand if a molecule of my interest (capable of inducing glucose-stimulated insulin secretion) determines an increase in intracellular calcium levels in the presence of...

16 February 2021 453 2 View

Are there commercially available fluorescence-tagged Influenza A virus?

30 November 2020 9,445 1 View

What tests for: 1. differences between continuous variables when grouped with different categorical ones; 2. significance of potential relationships?

Hello. I was wondering if anyone had suggestions in terms of what exploratory analysis to carry out for my dissertation with the following data. I measured N=26 participants pre and post an...

09 August 2020 5,256 5 View

Wavy looking bands In western blots?

Hello everybody, from some time, I keep having waving bands in the lower part of my gel, like the proteins are not running on a flat front. I cast my own gels and run them at 90V at the beginning...

26 May 2020 937 3 View

SURVEY - how people changed attitude toward green spaces & urban forests during the COVID19 quarantine?

https://vub.fra1.qualtrics.com/jfe/form/SV_5bSsVfI1g1VgI7j While shaking our society and turning our way of living upside down, the COVID19 pandemic is also putting the relation between nature...

15 May 2020 2,339 8 View

Direct Input of the Occupation Matrix?

I'm implementing the Occupation Matrix Control scheme (OMC) in VASP DFT+U calculations via direcct input of the Occupation Matrix. This requires an external input file (OCCMATRIX) containing the...

17 March 2020 1,921 1 View

Glycerol topology/structure for GROMOS87/Berger forcefield?

Hello all, I need the topology /structure file of the glycerol for the GROMOS87 forcefield. Is some repository available online or do someone know how can I derive them by myself (maybe some tool...

12 March 2020 8,858 2 View

How to interpret moderating effect in PLS?

I am running a Partial Least Squadre Path Modelling in R and I have a Moderating effect (explained by one scalar variable) between my exogenous x and my endogenous y. The only variable that...

25 February 2020 8,022 4 View

Recombinant protein for antibody neutralization?

I need to understand if an antibody I'm using is specific or not. The antibody is not validated. In immunoblotting, the antibody detects a prominent band at the right molecular weight and two...

29 April 2019 4,752 4 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

Can anyone name this graph type?

I've attached a recreation of this graph type that I need to make for study reports. The clients have sent them to us in the past, but I am trying to make the reporting process more streamlined,...

15 February 2021 9,795 3 View

Are there any differences between setting automatic or manual number of measurements in DLS?

When doing measurements in DLS (either size or zeta potential), I have the option to input an automatic number of measurements or to set it manually. My question is: is there a drawback in...

08 February 2021 9,423 6 View

Can anyone tell me how can I reduce the particle size of a polymer micelle ?

Currently, I am working on the PLA-PEG polymer micelle for the drug delivery system. The micelle I have synthesized I got avg 900nm particle size on DLS. I want to reduce the particle size below...

31 January 2021 2,684 5 View

How to use multiple tables to generate a graph in Graphpad Prism?

I have two different tables: one for metabolic activity of the cells in a plate, the other one is the Total DNA assay from the same plate. I need to generate a graph which represents metabolic...

29 January 2021 3,294 5 View

What dilution do I use for my GNP solution UV-Vis and DLS characterization?

I have prepared gold nanoparticles using the citrate reduction method in the lab. I need to characterize them using UV-Vis and DLS, by how much should I dilute my sample for using it in the...

26 January 2021 530 5 View

What's the difference between light absorption and coupling in plasmonic metals?

What's the difference between light absorption and coupling in plasmonic metals? It seems that light absorbed in metal nanostructure/nanoparticles doesn't contribute to enhancement in electric...

14 January 2021 1,884 4 View

How can I calculate mean/average from a bi-modal distribution?

I have DLS data of my tio2 nanoparticles taken at different reaction times. Now there is bi-modality in the datas of all reaction times. The data is ofcourse through the CONTIN algorithm. If I...

14 January 2021 8,393 6 View

How is oxygen vacancy formed in Tio2 and help with anatase to rutile transformation?

I am unable to visualize the basic formation of Oxygen vacancies in Tio2 as sometimes information is a bit scattered. Can anyone help me with how these point defects are formed and what prompts ?...

08 January 2021 2,017 4 View

How to use ArcGIS to separate certain % of data points scattered over certain area?

I was able to make a grid using fishnet in ArcGIS. But after that, I need to select 20% of points from each cell and make a different file containing ids of the data points as testing data set....

07 January 2021 9,533 1 View