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More Edwin A. Umoh's questions See All

Does democracy have a nonlinear effect on state capacity?

Some research indicates that the fist steps toward democratization of an authoritarian regime actually lowers state capacity. How strong is the evidence for this hypothesis?

14 July 2024 8,239 3 View

Can anyone suggest a method to check whether crosslinking occurred or not?

im working on the photocrosslinking of hydrogels and want to check whether crosslinking happened with the material I have.

12 June 2024 5,579 3 View

Can anyone suggest a recipe to make hydrogel by using riboflavin as photoinitator?

im working on hydrogels now and I would like to use RF as a photoinitiator

24 May 2024 9,131 1 View

How to identify microplastics in water and sediments ?

microplastics in our environment

18 February 2024 374 0 View

How to check pH of PCR mastermix?

30 November 2023 1,413 3 View

How is it determined and what is the basis for calculating the cross-sectional area that an electrical transformer should have?

I have a question about the relationship between the cross-sectional area of an electrical transformer and the maximum power it can deliver. Empirically, the area is calculated by the square...

09 October 2023 1,259 4 View

Can one incorporate recombination enzymes in the cloning vector while transforming a bacteria?

I am trying to transfer a group of bacterial strains but they loose the plasmid in the down stream processes. Iam wondering if i can be to transform them in a way that the gene of interest gets...

25 September 2023 1,160 2 View

How do I edit or delete a paper reference?

I was uploading a chapter and before I filled in the book, the chapter got posted with no context and I cannot find a way to go back and add the remaining details. I would be happy to start over...

04 August 2023 6,511 0 View

How to estimate SE of h2 using proc MIXED (REML) in SAS?

I will estimate the h2 of a trait in pigs using a model with common environmental effect in addition to fixed, additive and residuals, can anybody help me in doing this in SAS proc mixed (REML)?...

21 July 2023 5,608 0 View

What are current language theories?

For teaching and learning of foreign languages. For contrastive analysis

04 July 2023 5,982 2 View

Could you recommend some articles on Urban Transportation System optimization and Innovation?

13 August 2024 2,595 3 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 269 3 View

Should I include H atom into C3N5 when i am doing DFT modelling?

Hi all, my experimental XPS results shown that my C3N5 sample consists of N-H bond, hence in this case I should incorporate the N-H bond into my DFT modelling. However, I do notice several papers...

07 August 2024 8,414 2 View

Are there any good simple systems or platforms to recommend?

In order to show people the beauty of control and enhance enthusiasm for learning control theories, are there any good simple systems or platforms to recommend?

05 August 2024 10,034 1 View

Could dyes amplify the spectrum of light to a specific wavelength?

I am interested to know the behavior of dyes toward light. Specifically, Blue dyes re-emit the spectrum, especially from the green zone (known as principal in LED lamps, and blue dyes are known...

05 August 2024 3,290 1 View

Why do exism movements become permanent dictatorship threats within liberal democracy thinking under majority rule-independent rule of law system?

Exism movements after gaining power within liberal democracies under majority rule and independent rule of law system become permanent dictatorship threats, but why this is the case is not clear...

04 August 2024 8,125 3 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

Senescence-associated beta galactosidase staining is False Positive in control group?

Hi guys If anyone is currently working on aging cells, you guys would like to give me some advice. I'm testing against biomarker (SA-beta-Gal), I encountered a false positive in the control group...

02 August 2024 6,735 1 View

Are current regulations effective in preventing cancer caused by toxins?

I am currently researching the impact of environmental toxins on children's health and would greatly appreciate insights from experts in the field. If you are an expert or researcher working on...

02 August 2024 4,474 2 View

What is the problem with these tissue culture plants?

All plants are green but some of these plants becomes yellow. I did not found any reason. Please help me to find out the real problem.

01 August 2024 589 4 View

Mohamed-Mourad Lafifi

Dear Edwin,

I suggest for you a links and attached files in topics.

-IEEE Xplore - Conference Table of Contents

ieeexplore.ieee.org/xpl/topAccessedArticles.jsp?punumber... -

-An improved particle swarm optimization for exponential stabilization ...

dl.acm.org/citation.cfm?id=1994846

-chaotic lorenz system: Topics by WorldWideScience.org

worldwidescience.org/topicpages/c/chaotic+lorenz+system.html

-unified chaotic systems: Topics by WorldWideScience.org

worldwidescience.org/topicpages/u/unified+chaotic+systems.html

-Computer Science Seminars - de l'Université libre de Bruxelles

www.ulb.ac.be/di/seminaires

Best regards

Edwin A. Umoh

Thanks Prof Lafifi. The materials are quite educative