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 do you think why fiber-optic DAS systems are not frequently used in bioacoustics?

There are some interesting challenges for DAS systems in fields of agri-biophotonics and/or biophotonics - from vibration impact studies on the roots of growing plants to sea fauna acoustics...

16 October 2020 6,696 5 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

Dear Colleagues, does anybody plan to visit the International Conference on "Optical reflectometry, metrology & sensing 2020"?

My friends, my dear colleagues, I am the Scientific Secretary of this Conference. It is held by the Photonics Laboratory and Agri-biophotonics Laboratory of the Perm Federal Research Center of the...

25 December 2019 4,220 29 View

Could you advise me to measure cAMP in pancreatic cell (INS-1, RIN-m5F)?

I would like to graph the trend of increasing intracelluler cAMP after treatment of GLP-1 by concentration in Pancreatic cell (INS-1, RIN-m5F). However, I'm measuring the cAMP using the current...

21 July 2019 395 1 View

I'm the author of an interdisciplinary working paper. Who can publish it?

09 December 2018 2,362 4 View

Is there a open-source software for creating a 3D model based on 2D consecutive echograms?

Not all ultrasound scanners have the 3D option, we have to reconstruct the 3D mentally. And it would be nice to have such an opportunity, like at CT. For example, as in the present case with an...

07 November 2018 3,824 5 View

There may be quantum entanglement in aqueous micellar solutions of ionic surfactants?

We study the quantum entanglement in aqueous micellar solutions of ionic surfactants. We have shown that excitons exist in aqueous solutions. We bathe in excitons, we are treated with excitons....

04 April 2018 8,152 2 View

What is the best way to make a ZnO+Ag nanoparticle blend for polymer antimicrobial additivation?

Hello! I am working with silver nanoparticles for antimicrobial additivation of polymers. I synthesize them on aluminosilicate sheets as substrate, and I will now replicate my process for ZnO....

04 March 2018 8,455 3 View

How to quantitative analize the data of TNBS assay for gelatin?

Estemeed colleagues, I found some issues regarding the quantification of the data for TNBS assay. There are different protocols on how to perform that but it is clear to me the "fil rouge" that...

02 March 2021 2,616 1 View

How to get started building and analyzing a UTAUT model?

Hello all, I need help getting started building and analyzing a UTATU model. I have a survey ready with some questions but I had some confusions on UATAUT and on how to analyze the data. I will...

02 March 2021 9,271 1 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

Could anyone tell me what is the range of submillimeter wave?

There is confusion regarding the submillimeter-wave range. Many papers specify its range from 300GHz but some also consider its range from 100GHz. If I design an antenna on 122ghz what would I...

01 March 2021 516 7 View

Calculating volume of DNA required from DNA concentration?

Hi I am a bit confused. They are asking me to find out the volume of DNA required in ul (a total of 30-100 ng for genomic DNA) from the DNA concentration in the nanodrop reading which was 404.8...

26 February 2021 5,029 2 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

Best plasmid could be used as a standard curve for AAV titration?

I have been trying to have a good AAV titration for my production and I have tried different plasmids to set up as a standard curve but each one behaves differently. i am trying to use ITR for...

23 February 2021 5,167 3 View

Which type of loading is to be used in dynamic analysis of Machien foundation?

Hello Everyone, Hope you all are doing well. I'm trying to simulate a machine foundation in ABAQUS with a geo-cell reinforced soil bed. Im totally confused to which type of loading would be...

21 February 2021 4,388 3 View

Which vial septa the right one to be used for HPLC?

This is the unanswered question stored very long in my mind and till now I could not find a right answer. Google search educated me that the red surface is the PTFE material compatible to wider...

21 February 2021 546 3 View

Best solvent for L-DOPA extraction and HPLC analysis?

I'm working on Mucuna pruriens and want to quantify L-DOPA. Could someone please suggest the cheap and best solvent for the extraction and the solvent system that has to be used for its...

20 February 2021 6,058 2 View