What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

Measurement invariance of a bifactor model with categorical indicators. What is the recommended approach?

I have a bifactor model with categorical indicators: 4-option Likert-type items. One of my research objectives involves testing measurement invariance between two groups. I have been doing it as...

16 December 2020 4,601 2 View

How to concentrate a PCR product before sequencing?

Hi everybody, I'm planning to sequence several phytoplasma strains by doing a nested PCR and cloning the resulting amplicons. Standard phytoplasma universal primers pairs will be used (P1/P7...

08 November 2020 2,155 4 View

Discrepancy protein levels and receptor expression?

I measured the expression of a protein that is a receptor in a panel of cell lines. When I measured the protein levels by Western blot the protein levels were about the same in all cell lines ,...

09 September 2020 6,671 3 View

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24 July 2020 9,872 3 View

Who decides if a paper is submitted or not?

If one of the coauthors of a research paper does not contribute intellectually but financially only to a project, is he/she entitled to call off the submission of the paper?

10 May 2020 2,851 7 View

Does anyone know home range databases for mammals and birds?

I am conducting a study using wildlife traits, however, home range data is limited. Pd. I have already used data from Tamburello et al. 2015, but I still have lots of species without home range data.

30 April 2020 6,608 2 View

IEEE 34 node test feeder in DigSilent PowerFactory?

18 April 2020 1,949 2 View

Can pressured steam carry small biomolecules?

Apparently there is a belief that contaminated steam in the autoclave can contaminate your pipette tips while sterilizing them with biomolecules such as peptides and DNA, and that this can be a...

05 March 2020 1,439 3 View

Narrowband filter before or after sLoreta transformation?

Hello everyone: I was wondering about narrow band filtering the EEG (ALPHA, BETA, THETA) and doing a source analysis with sLORETA in a particular set of ROIs. Filtering before (EEG electrodes...

24 February 2020 538 5 View

What is the correct common name for Hydrochoerus hydrochaeris?

There are two extant species of Hydrochoerus: Hydrochoerus isthmius, the lesser or Panamanian capybara, and the genotype species H. hydrochaeris. The latter is the more common species of capybara,...

11 February 2021 3,494 14 View

What researchers view on my paper A brief elementary proof for FLTusing Ramanujan-Nagell equation?

Please see the attached file regarding my recent paper published in American Journal of Applied Mathematics and Statistics , volume 9 Number 1 pp 24-27

01 February 2021 2,209 1 View

What would be the best way to create an ethnographic database in order to facilitate comparative work ?

I am seaching for a software that would enable me to create a database constitued of PDF files of older ethnographies of north american indigenous peoples. Here I'm thinking of ethnographies like...

19 January 2021 8,522 5 View

Will the new vaccines be effective against the new SARS-Cov2 strain from the UK?

Two new variants of the coronavirus were detected in the U.K. and have now been followed to other parts of the world including South Africa and North America. The South African variant could be...

05 January 2021 499 4 View

How is the North American Monsoon, Particularly in Arizona Expected to Change Due to Global Warming?

I've heard many different interpretations, that there will be no change, that there will be an increase, and there will be a decrease? Which is the most likely?

28 December 2020 5,194 3 View

Hi, I Am Currently Researching On Wind Energy In Nigeria. Pls, Which Software Can Plot This For Me Or How Can I Get The Same Plot For Nigeria?

This is a plot of wind speed in America at 100m and 80m. what software can i use to plot this

17 November 2020 914 8 View

What are the main taxa of above ground arthropods in a silvopasture system in the tropics of Latin America?

Beside dung beetles, I would like to learn more about the diversity of arthropods in silvopasture systems where livestock are kept on rotation. Also what about arthropods diversity in similar...

31 October 2020 6,632 1 View

Methods for bird trend analysis?

What would be the best method for analysing trends in species abundance in a single area in Latin America over a 15 year period? Could TRIM be used for this purpose? I don't have data about...

27 October 2020 7,532 5 View

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11 October 2020 9,613 1 View

How peoples in the world get all information concerning Covid-19?

Because of international threat of covid v-19 and spread of disease to the the degree of closing many countries and delay in the economic regain ,millions of peoples in America,russia ,india...

23 September 2020 1,822 3 View