Are Air-cleaners effective in controlling COVID-19 in indoor environments ?

The use of air cleaners is recommended by some experts to filter the air in indoor environments like home, office, school and other publich places. They have to be equipped with HEPA filters and...

12 November 2020 4,817 3 View

COVID-19 and Geography. What are the levels of impact and who will survive?

Latitude, climate, humidity, infrastructure, health care systems, socioeconomic situation, health condition of the patient and pre-exposure to vaccinations like BCG, antimalarial drugs. Are they...

21 April 2020 6,869 8 View

How to model robot dialogue model according to emotions?

I'm designing a user study on robot-human communication and I want to design the robot speech according to human feelings. I did a research to understand how human feels from speech, and I want...

05 January 2020 7,107 3 View

Is it OK to do a user study with people in a language other than their mother language?

I'm planning to do a user study in Korea, and the study itself is in English. I wanted to hire people with certain English skills, but I was wondering if this is acceptable in academic standards?

05 January 2020 9,293 5 View

What are the main criteria to evaluate an exploration project's success?

How should an exploration project be evaluated as successful or unsuccessful? What are the main criteria? Exploration of an unknown deposit based on recent protocols or standards (such as JORC or...

28 December 2019 460 19 View

How to make Tris Succinate buffer (0.05M, pH8.2)?

How to make Tris Succinate buffer (0.05M, pH8.2)?

25 October 2016 5,036 3 View

Any suggestions about my struggle with fabrication of silver coated core shell nanoparticle?

29 August 2015 5,565 8 View

Is Matrigel or GFR-Matrigel better for transwell invasion assay?

I will be working with NCI-H460 cells.

02 February 2015 9,969 4 View

NOBELPRICE for inventing the BionTECH vaccine to Ugur Sahin and his partner/wife Ozlem Tureci ?

Dear colleagues, amazingly we are following the developments regarding COVID-19 and the worldwide havoc and chaos it caused. Surely, everyone will be happy to see this pandemic coming to an end...

01 January 1970 6,397 7 View

COVID-19 and its impact on scientific research in universities.

During COVID-19 the scientific research in universities is partly or fully stuck due to lockdown. This has an impact on research. What are the dangers and the opportunities we as researchers face...

01 January 1970 9,192 8 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 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

Dapi fluorescence protocol for colon cell lines ?

28 February 2021 2,534 2 View

How can I represent SDS-PAGE results for machine learning analysis?

I am trying to classify and analyze the results of an SDS-PAGE based array for bacterial detection using machine learning, but I have trouble finding the best way to represent the results with...

27 February 2021 9,176 3 View

No title

I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View

Why my agarose gel staining sometimes looks not homogenic but like gradient (see the figure)?

I am worried about this overexposure of the upper part of the gel in the picture. Is it possible that this is the result of too much concentration of ethidium bromide? Why is there such a big...

25 February 2021 8,140 3 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

Problem with ligating 2.8 kb insert into 8.5 kb plasmid?

I am trying to clone 2 copies of the same mammalian gene into the pSF-CMV-Ub-Puro Ascl (contains HindIII, KpnI and NheI cut sites) plasmid. This is what the final product is supposed to look like...

24 February 2021 6,310 3 View