How can researchers and students identify predatory journals?

Predatory journals and publishers are sometimes difficult to identify. Unfortunately, predatory publishing is often confused with open access publishing, which has widely benefited scientific...

08 September 2017 3,620 11 View

What actions can be taken to stopping predatory journals?

Stopping predatory journals and preventing researchers from submitting to them requires a collaborative effort.

08 September 2017 6,105 14 View

What are the main advantages of using anaglyphs in classes?

My engineering college students have developed software for obtaining anaglyphs.

08 September 2017 7,984 1 View

What are the fundamental characteristics of the teaching of physics in engineering careers?

There are pedagogical tendencies to teach applied physics in engineering careers

08 September 2017 4,586 4 View

What are your experiences about research work done by engineering students from the curriculum?

The research work carried out by university students is very important in their training.

08 September 2017 3,901 2 View

What is your opinion about einstein's contributions to education?

05 June 2017 7,321 4 View

What is your opinion about the advantages and disadvantages of homeopathic medicine and about medical schools teach integrative medicine?

04 May 2014 8,198 1 View

What is your opinion about the new educational possibilities of 3D Printing?

A 3D printer makes 3 dimensional solid objects right from a printer. There are endless possibilities for creative 3D objects that our students can make.

04 May 2014 5,102 16 View

What is your opinion and experience regarding the contributions of Piagetian and neo-Piagetian theories to education?

Jean Piaget (1896 - 1980) was the first psychologist to make a systematic study of cognitive development. His contributions include a theory of cognitive child development, detailed observational...

04 May 2014 4,418 11 View

What is your opinion about the role of education in peace building?

Education plays a very important role in the prevention and transformation of violent conflicts.

04 May 2014 5,883 12 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View

What is the reason of the received optical signal to be slimmed down in multi-mode fiber?

What is the reason of the received optical signal to be slimmed down in multi-mode fiber? I have 4 km multi-mode fiber

03 February 2021 1,105 10 View

What Buffer should i use for T4 virus for electron microscopy ?

Hello, I currently have my T4 virus in HEPES buffer. Unfortunately, there are always crystals that are contaminating my solution (due to the buffer in which the Viruses are) when I observe them...

01 February 2021 400 3 View

Why it is not permissible to correct all 5 classical optical aberration (spherical, chromatic, coma, astigmatism, curvature of field) simultaneously?

When first order paraxial optics is expanded to third order optics (i.e. sin x~ x-x3/3! instead of sin x~x) , these 5 optical aberrations result in. What is the rigorous mathematical proof that,...

26 January 2021 8,666 4 View

Difference between Second-harmonic generation and Two-photon absorption?

Hello Dear Researchers, I am confused about the Difference between Second-harmonic generation and Two-photon absorption? Can anyone describe the two phenomena briefly in the physical picture? What...

24 January 2021 9,912 5 View

Is it possible that the single-pass absorption exceeds 50%?

Dear researchers It's well-known that the maximum light absorption of any structure can not be greater than 50%. Is it possible that the single-pass absorption exceeds 50%? How?

17 January 2021 2,335 7 View

What can cause laser beam polarisation fluctuations?

Dear colleagues, We have observed large fluctuations in laser power in our setup and traced them down to fluctuations in laser beam polarisation. Attached is a schematic of the relevant part of...

14 January 2021 7,505 4 View