Technical site help needed: I need to change my log-in email address and can't get to the HELP section?

My old log in email, [email protected], was compromised and I need to change it to [email protected], so I can change my password, update publications, etc.

24 December 2020 6,939 3 View

Which Universities are virtual?

Many Universities have employees located across the world.

22 December 2020 6,380 3 View

How do I test for multicollinearity among Independent variables in binary logistic regression using R?

Please, I am trying to do a project work using logistic regression. I need to test for multicollinearity for the independent variables using R. I installed mctest and multiColl package already....

18 December 2020 2,531 3 View

Where can I find graphs of Brazilian Portuguese phonology?

I need research material on Brazilian Portuguese phonology.

27 September 2020 9,274 3 View

How to avoid getting organic particles to charr(become black) during calcination?

I am trying to synthesize SrHfO3:Eu2+ nanoparticles. To reduce from Eu3+ to Eu2+, we calcinate it under Ar/H2 conditions but it ends giving a black coloured product. We need this for luminescence...

22 August 2020 448 3 View

How does one collect data from a population that was once together on a university campus but is now dispersed due to the Covid-19 lockdowns??

If a researcher is more than half way through a research project, and now needs to collect data by recording the responses of participants to a read aloud test; How can such a researcher collect...

03 August 2020 6,771 5 View

What is the most appropriate emsemble to use for simple AA membrane simulations?

I am working on some more complex membrane simulations and wanted to know if there is a specific advantage to using a certain ensemble. It seems as though most people have used either NVE, NVT, or...

20 November 2019 1,307 3 View

How can we calculate polystyrene nanoparticles concentration in a solution?

I wonder how to measure the concentration of polystyrene nanoparticles (50nm) in a solution. Our nanoparticles are not fluorescents. Thanks

28 October 2019 2,353 4 View

How to configure BAL bioreactor with oxygenator?

I am wondering if anyone has a simple blueprint on setting up a BAL bioreactor? Specifically, we have engineered the machine except we are wondering about the oxygenator - will atmospheric oxygen...

28 May 2019 4,674 2 View

Efficient way to cut fibers at 1 mm or below?

I am wondering what kinds of techniques are used to cut fiber segments to lengths of 1 mm or less (common in flocking industry). Currently, cutting is done by hand and is too tedious to be...

23 April 2019 916 3 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View