Why Virtual or Augmented reality are yet see as risk by some teachers in STEM teaching in develop critical thinking?

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Questio regarding micro/nano particles fabrication ?

I will start to fabricate micro/nanoparticles for growth factor release and I check out a procedure quite nice, however, it is lacking some details and since I don't have much knowledge doing this...

20 February 2021 199 2 View

How do you prepare a standard dilution for qPCR?

I am very new to quantitative PCR and need some help for this technique. For my experiment, I need to perform a quantitative reverse transcription PCR. I extract the RNA from my pellet and...

05 February 2021 9,834 4 View

Can I modify vermiculite or perlite by adding nutrients to control a certain situation?

I need to assimilate a determining condition for the plant. However, I need to ask you if it is possible to change the properties and concentration of plant nutrients in this material like perlite...

04 February 2021 8,616 11 View

What is the half-life of TNF-alpha in vitro?

I'm designing a low-grade chronic treatment with this cytokine and I'm wondering how regularly to change the culture medium based on the half-life of the protein in an in vitro environment....

24 January 2021 5,988 2 View

Which sampling techniques can be used for huge flying insects?

Tropidacris collaris is a grasshopper. Adults, which can reach more than 15 of length, are strong flyers and actually they resemble small birds or bats. Most of the time T. collaris is found in...

13 January 2021 3,735 5 View

Does freezing treated cell pellet at -80C damages them?

Hello, I hope you are all doing well. I have a question regarding my treated cells group. I plan to do western blot and qRT-PCR for my treated cells. However, to save time, I would like to...

06 December 2020 1,390 5 View

How do I determine if sample size estimation is for entire study of for each regression for a DV with subscales?

Hello! I am in the process of writing my dissertation proposal and need to figure out sample size (I will be using G*Power). To measure my DV, I am using a survey that has 4 subscales each with a...

29 October 2020 8,609 2 View

Why do some primers have transcript variants/unintended templates for different genes?

Good day, I hope you are all doing well. I was designing primers for Caspase 9 and sometimes, the designed primers in NCBI have transcript variants for the same gene (Caspase 9) but at the same...

05 October 2020 352 3 View

Do I need to design forward and reverse primers within an exon region for QRT-PCR?

Good day, I hope you are all well. I am new in designing primers for quantitative reverse transcription PCR. I am using NCBI to design my primers and my question is: Do I have to design my...

04 October 2020 7,678 7 View

Have anyone else experienced a UV biosafety cabinet questions in your lab?

In my current lab we have one cell culture room with 2 thermo biosafety cabinets facing each other. Some people in the lab just don't feel safe to use one hood if the other one has the UV light...

23 September 2020 5,379 2 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

Luis Pablo Hernández-López

Unfortunately, it is common to see education professionals resisting change in teaching methodologies. It is also true that frequent changes in government educational policies do not contribute to the implementation of new methodologies, however the advantages are widely demonstrated: Cromley, J.G., Chen, R. & Lawrence, L. Meta-Analysis of STEM Learning Using Virtual Reality: Benefits Across the Board. J Sci Educ Technol 32, 355-364 (2023). https://doi.org/10.1007/s10956-023-10032-5

Eduardo F Orrego-Escobar

Luis Pablo Hernández-López thank you by your great contribution