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

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View