For 3D SSI problem in Opensees giving eqdof or rigidlink b/n structure base & proximity stdbrick element node, analysis fails? which constraints work?

I defined my structure with a model builder of -ndm 3 -ndf 6 and my soil as -ndm 3 -ndf 3 with a stdbrick element. I connected the base of the structure with the brick elements with eqdof in dof1...

18 February 2020 1,796 4 View

How likely does a plant which is a natural hybrid of two plants species have null pharmacologic effect while the two plants have their own effects?

when two different plant species are examined separately for the same pharmacologic effect in preclinical screening studies, they do produce significant effect for a certain pharmacological...

22 May 2019 9,760 3 View

In Electrochemical anlysisis how can find and select the modifier for carbon based electrode?

To determine the sample by using glassy carbon electrode. I need modified the electrode so how can i select and which one is preferable in case of Pharmacuetical formulation sample. Thank You for...

02 November 2017 3,239 4 View

The "Lysenko Prize" is associated with Agricultural Sciences. What type of prize is it ? Who is awarding it? Who qulifies for it?

The "Lysenko Prize" is associated with Agricultural Sciences. What type of prize is it ? Who is awarding it? Who qualifies for it? Historical background of the prize and the criteria used to...

09 May 2016 583 7 View

Can anyone sponsor publication of textbooks for private higher institutions in Africa?

Most of the private higher institutions in Africa are struggling with staggering costs of publications due to price hikes and difficult policy environments in different sectors. Moreover, they do...

07 July 2015 2,063 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

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

Does anyone know HRM channel in a 2 plex QIAGEN Rotor- Gene Q qPCR can be used as a separate channel?

I am going to have 3 different probes in my qPCR work that I am going to do. But I realized that the machine we have in the lab is a Rotor-Gene Q 2plex HRM Platform, saying it has green, yellow,...

01 March 2021 8,544 1 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

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25 February 2021 5,713 1 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

How to run repeated measures in mvabund?

I have a dataset of fish species abundances collected from 6 different habitats over the course of 30 years. Fish were collected multiple times per year and environmental variables were recorded...

21 February 2021 3,838 1 View

Is there a method for evaluating nanoparticle adhesion to epithelial tissue in vitro?

I want to measure how well nanoparticles can transfect cells based on NP adhesion properties. In the literature I find people do it in animal studies, and epithelial adhesion helps in transfection...

21 February 2021 7,791 3 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View

How to get rough estimation of the concentrations of Oxygen and moisture inside the glove box?

Dear colleagues, I was just wondering if you can suggest a good method to get a rough estimation to the concentration of O2 and H2O inside the glove box as unfortunately, our glove box doesn't...

17 February 2021 1,012 3 View