How can we measure the reliability and validity of our survey questionnaire?

We are conducting survey research on COVID-19 misinformation among students. How can we validate our survey for it to produce valid and reliable data? Also, what statistical tools can we use to...

16 February 2021 678 3 View

How to design a reactive extraction process in Aspen Plus?

Hello, my task is it to create a specific extraction process. There is a mixture containing water, nitric acid and hydrochloric acid. It is known, that tributyl-phosphate is a solvent, which...

03 January 2021 4,163 3 View

Could speech recognition software be developed that DOESN'T convert sounds into waveforms? If not, what does it say about the semiotics of knowledge?

The standard approaches in speech recognition (and A.I. generally) rest on some very interesting assumptions that deserve to be carefully examined...

02 January 2021 9,363 11 View

What is the grain structure of metal powders utilized for the SLM process? As in, the structure of the metal powder prior to lasing?

From my understanding, powders utilized for the selective laser melting (SLM) process are manufactured through an atomization process. My question is, do the powders that develop from this...

03 November 2020 9,603 4 View

Do children learn best when they're given the freedom to pursue their own interests?

21 October 2020 9,970 12 View

What sensors are applicable for plastic detection using Arduino?

Are there Arduino sensors that can be used to detect the presence of plastic materials? Our proposed study is an arduino based plastic detection from the water surface. We plan to use infrared...

16 October 2020 4,552 3 View

What is the ideal treatment of data for arduino-based research projects?

Our research is An Arduino-based solar-powered surface water plastic proximity detection and characterization system. We are currently writing our methodology for our research proposal but we are...

12 October 2020 905 3 View

C. S. Peirce held that, because mathematics makes no presuppositions, it is even more basic than phenomenology? Do you agree?

30 August 2020 3,686 13 View

Recovery rate of biodiversity when shifting from conventional to organic farming?

If it exists, where can I find data or some relevant references on the recovery rate (and time) of insect biodiversity (or just pollinators) when shifting from conventional to organic farming for...

11 August 2020 6,996 7 View

What are the recommended diluents for the Pierce BCA protein assay kit?

I have performed a tissue homogenization/extraction protocol using methanol and chloroform as the solvents. The aliquot being using for BCA analysis contains both solvents. I understand that the...

23 June 2020 650 1 View

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View

OpenBCI eeg--has anyone used them?

I'm looking to try out an off-the-shelf EEG set for some exploratory work. Curious if anyone has used the OpenBCI, and how much set-up work is required. I've heard they are more difficult to get...

01 March 2021 4,128 3 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View

Is there any expert in Smart PLS who can help me?

Dear colleagues, I have a manuscript that needs an expert in smart PLS to run the analysis, Is there anyone expert and ready to help me, please?

01 March 2021 8,212 3 View