Are there any solutions for remote eye-tracking?

Since with the pandemic it doesn't look like we are going back to the lab soon, in my lab we were looking for solutions to conduct remote webcam-based eye-tracking. I've been looking at...

31 January 2021 7,315 5 View

No title

I was working on thermogravimetric analysis for some materials, however, because of the pandmy I stoped using the STA TG DTA-DSC 1600 for like 6 months, when I was able to work again with it, the...

11 October 2020 3,865 2 View

How to get node label from abaqus using python?

I have a model which includes a surface (lets call it EXAMPLE) composed by faces of several 3d elements. Using python scripting, how can I extract (to a text file) the nodes that are part of that...

22 September 2020 9,489 1 View

Which is the best approach for nucleotide substitution model-testing for phylogenetic reconstructions using RADseq data?

I am trying to infer both maximum likelihood and bayesian phylogenetic trees using RADseq reads. I have already created my sets of radtags using Ipyrad which also I used to export the consesus...

24 August 2020 7,823 8 View

Which inputs and outputs should I add on my DEA Analysis?

I'm doing research on the performance efficiency of different oil companies in the world. It has come to my attention that many scholars use DEA Analysis to measure it. However, it is not clear...

23 June 2020 3,223 9 View

Does anyone know of a software to be able to simulate UV lighting / irradiance (300-400 nm) in a given space?

My intention is to use it to calculate the number and distribution of UV lamps within a spherical dome. I need to have a homogeneous distribution and a certain UV irradiance for my experiments....

18 June 2020 1,306 1 View

Retention time variability in HPLC columns specific for PAHs analysis?

We are using a Zorbax HPLC PAHs column and we are observing a high variability in the retention time of PAHs, even in one same batch. Analysis is performed in a LC-MS/MS system, ionization source...

16 April 2020 3,444 8 View

Which environmental problems arise from landfill mining ?

Landfill mining techniques arise as one of the available alternatives to mitigate negative environmental impacts from municipal solid waste landfills. High recycling potential generation is one of...

28 March 2020 1,782 10 View

NetCDF in R and Arcmap?

Hi, I have a problem exporting Netcdf from R 3.6.3 to ArcGIS 10.6. ArcGIS does not recognize the file and eventually closes. The problem is solved only using a previous version of R 3.4.4. Does...

22 March 2020 8,086 3 View

How can I make input file for rehh package in R with scaffolds?

I am trying to look for positive selection in the genome of a non-model specie, therefore I do not have chromosomes structure, I just have scaffolds and positions of SNPs in a VCF file. I used...

11 March 2020 3,700 3 View

No title

02 March 2021 3,060 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

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

Samples to study circular dichroism (chirality)?

I want to build a low-cost polarimeter to study circular dichroism (chirality). What type of samples can I use? I am looking for samples that can be found outside the laboratory.

01 March 2021 9,101 3 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

No title

28 February 2021 9,936 2 View

When is it unnecessary to change organisational culture?

As a former management practitioner, I recall a generally accepted view that changing organisational culture is difficult, so you should only attempt it if the organisational change that you are...

27 February 2021 2,595 8 View

Does RNAiMAX transfection reagent work in serum free medium?

I diluted siRNA and RNAiMAX in opti-MEM and added to the cells which they were in the growth medium. Is it a right way? or should I culture cells in the opti-MEM medium for a while and not in...

26 February 2021 10,041 3 View

What is the best surface to culture cells isolated from a skin biopsy?

Hello, recently I am having some difficulties with maintaining the cell culture of primary cells isolated from a skin biopsy (normal and malignant). The coating of culture plates with Matrigel (a...

26 February 2021 6,151 2 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View