What are overall assumptions for comparing two enzymes of the same class consisting of more or less different amino acids?

I do research on genetic code and aminoacyl-tRNA-synthetase (aaRS) evolution. An aaRS consists eihter of 18, 19 or 20 amino acids. Are there biological rules or findings that allow the assumption...

13 February 2019 5,734 7 View

How to confirm the formation of methyl ammonium iodide and lead halide perovskites?

I am trying to synthesize organic lead halide perovskites. But I am unable to confirm whether my products are formed or not. Please tell a proper way to confirm the formation of methyl ammonium...

30 January 2019 5,960 5 View

Which simulations of genetic code evolution do exist?

Are there simulations that... - simulate changes in the tRNA pool? - simulate flexizymes? - simulate aaRS? I did a lot of research but didn't find practical approachs on the role of these three...

22 January 2019 8,768 1 View

How long does an Aminoacyl-tRNA-Synthetase live? How often is it reproduced?

For my current project I do a lot of research about aaRS but didn't find answers to these questions yet. I am happy about any information about the lifecycle of these enzymes.

05 November 2018 2,831 2 View

How to decide the viscosity of nanoparticle ink?

I am currently developing nano-particles ink for flexible electronics. I want to know about the different dispersion media and viscosity parameters.

16 March 2017 4,495 3 View

What is the method to analyze liquid samples in X-ray photoelectron spectroscopy (XPS)?

I want to analyze my nanoparticles, which are highly dispersed in water, with the help of XPS. Please share your experience with me, if someone has knowledge of interpretation, please share it too.

22 October 2015 4,823 6 View

How can you make oleds?

I am working on silver nanoparticles synthesis. I want to make use of it in oleds. Please tell me how to do it. I can also collaborate.

30 August 2014 5,680 3 View

Is there an alternative to liquid-nitrogen snap-freezing?

24 August 2014 6,004 2 View

Good sites to recruit survey participants on a grad school student budget?

Any good recommendations for participant recruitment for online surveys on a grad school student budget?

02 March 2021 4,293 4 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

Is there any rich, publicly available English literary corpus?

Hi everyone. I am looking for a rich corpus in English literature, a one which includes literary prose ( e.g., novels or short stories) . can anyone propose a good one? Best regards Fatemeh

01 March 2021 1,970 2 View

Fictitious Boundary Meshing Method (FBM) in Commercial FEA software?

Is it possible to implement FBM in a commercial FEA software package, such as FEMLAB, COMSOL, or open source software like Moose?

22 February 2021 2,968 1 View

Online surveys for social sciences researchs: what are your opinions about this tool and how can we improve the research design to incorporate online?

Good morning everyone, Due to the pandemic, I conducted several online surveys. It is quite agile, not at all expensive, but there are several problems: the sample's representativeness and its...

21 February 2021 7,457 3 View

Which database is the most suitable for checking English bigrams frequency?

Which database is the most suitable for checking English bigrams frequency? We want to assess the frequency of different English graphemes. Most of the databases that we have checked seem to...

18 February 2021 4,565 3 View

What are some alternatives to the Self-Directed Learning Readiness Scale (SDLRS) developed by Dr. Lucy L. Guglielmino?

The Self-Directed Learning Readiness Scale (SDLRS), also known as the Learning Preference Assessment (LPA), was developed by Dr. Lucy M. Guglielmino in 1977 to measure learners' attitudes of and...

15 February 2021 3,095 4 View

Which and How to use teaching strategies and procedures to effectively integrate the four skills while teaching English Language Online?

As an inexperienced teacher in the field of online teaching, I have the fear of unconsciously ignoring one of the skills while focusing on not ignoring the other! Therefore, I wish to make use of...

09 February 2021 5,101 4 View

Can anyone recommend a scale to measure Bloom's taxonomy of learning styles?

I am looking for recommendations of scales (in English or Spanish) to measure learning styles according to Bloom's taxonomy of learning. Thank you in advance!

09 February 2021 1,419 8 View

Which Journals would you advise to submit a Letter which briefly talks about neurosurgical treatment of neuro-oncological patient during Sars-COV-2?

Possibily not an open access journal which does not add any publishing costs once being accepted. Thank you in advance

09 February 2021 717 6 View