Is it possible to elucidate the structure of melanin pigments with Cryo-electron microscopy?

Dear Colleagues Melanins are heterogeneous polymeric natural pigments and these pigments are widely distributed in nature from bacteria to humans. Today, although the structure of other organic...

18 January 2021 8,792 2 View

SEIQR ODEs COVID-19 Model to do the Stability and control for our state/ province?

Dear sir/madam! I'm a final semester student in BS Mathematics and my research interest is in Mathematical Biology. Would you like to provide me the best SEIQR ODEs model for stability and optimal...

10 May 2020 8,733 11 View

Harvard University first higher education institute of USA is state owned but kept secret or really private foundation institute?

Is there any country in the world having its first university being private ? Every first university has to be state owned.Harvard University can it be really private foundation university or...

30 January 2020 7,501 3 View

Why US universities have many compulsory humanities courses to students majoring in STEM?

Is it really necessary to teach unscientific knowledges of humanities to STEM students ? In Europe such as UK, Germany, France etc STEM students just learn their related STEM courses so that they...

09 October 2019 5,114 3 View

Is quantum mechanics also related to philosophy other than physics ?

Since there is wave-particle duality, double slit experiment, Heisenberg's uncertainity, Schrodinger's electron probability formula, photon entaglement with more than speed of light, too many...

25 September 2019 9,324 2 View

Treatment of Vitiligo?

Please let me know that is there a complete and successful treatment of Vitiligo invented scientifically? A treatment which people can use to save their skin from a white dots and patches? If no,...

29 June 2019 8,759 7 View

Which free simulation software can I use for modelling the railway freight capacity for a single track primitive railway route?

I would like to determine to calculate the railway capacity for shuttle train movements.

26 December 2018 3,701 3 View

DNA concentration in RNA sample for qPCR?

17 June 2018 1,084 8 View

How can I calculate the attenuation of visible or near-infrared light due to a single water drop in the millimeter range?

Wavelength is small compared to the particle size! For Mie theory: Extinction paradox, the scattered power is larger than the power incident on the drop. Experimental setup: Water drop is...

19 November 2017 203 4 View

RNA extraction problem?

31 October 2016 5,369 7 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Alternative to mediation analysis?

I am currently working on my dissertation and want to explore the role of competence as a mediator between the effect of colour of clothes on voting intention (focus on Western countries)....

21 February 2021 8,609 1 View

Color of spiro-ometad film?

What does the color of a spiro-ometad film indicate? I got purple, green, red, even black color of the spiro film. Is there anything we can get from the preliminary color analysis(e.g. oxidation...

21 February 2021 1,831 4 View

How to use bag of words for action prediction?

Hi everyone, I'm working on an action prediction (i.e., early recognition) using Bag-of-Words. I know how to use BOW, but regarding action prediction, there is a subtle problem. In the...

19 February 2021 1,442 4 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

Any information about dinitrosalisylic acid reagent end point color stability ?

I work on estimation of alpha amylase activity using dinitrosalisylic acid reagent If i put the reagent to stope the enzymatic reaction and allow the reagent to react with the produced reducing...

17 February 2021 7,402 4 View

Negative result on natural product sample cholinergic assay?

i have been doing cholinergic assay on natural product and for some of the samples, i get negative value for the inhibition activity. can anyone help me explain the meaning of the negative value...

17 February 2021 4,118 1 View

Has anyone performed a colorimetric RT-LAMP assay using Lucigens LavaLAMP kit?

Hi there, my lab recently opted to use LavaLAMP from Lucigen instead of the Warmstart kit from NEB. However, Lucigen has yet to create a colormetric kit for RT-LAMP, and adding phenol-Red (pH...

17 February 2021 5,399 1 View

How can we assess applied digital skills and soft skills through online examinations during COVID-19 semester?

The final qualification assessment for major programs is a strict regimen that involves different stages - oral and written exams, final project viva, internal and external review. How are ICT...

16 February 2021 1,762 8 View

What is the actual chemistry going on between iodate and ascorbic acid?

I am studying biochemistry at university, as part of the course we do several titration experiments. In our handouts, we were given the following half equations: IO3- + 6H+ + 4e- I+ +...

16 February 2021 8,731 1 View