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

Numerical taxonomy with SPSS?

Hi everyone, I was wondering about the possibilities of performing numerical taxonomy with SPSS software. I would be very thankful to recieve advice!! For now I have been reading about...

12 January 2021 5,549 3 View

Does maternal potentiation work?

Has anybody been able to replicate finding of papers that show increased vocalization in mice pups after a brief period of interaction with their dam, also called maternal potentiation? We have...

11 January 2021 558 2 View

What are the best references for an approach to teaching Differential Equations?

Differential equations are known to be potential tools for modeling and predicting recurrent phenomena in time and space, whether simple or more elaborate models. In this sense, how to approach...

18 December 2020 1,750 3 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

Anybody know how can I analyze differences between groups vocalization syntax using the transition probability between syllables?

I have been using a MATLAB script called DeepSqueak to analyze vocal communication in mice. One of the outcomes of this analysis is the transition probability between the different syllables that...

09 December 2020 1,525 1 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

Ecotoxicological studies with undisturbed soil samples?

Hi! I am looking for an paper that the authors conducted a study on natural soil with undisturbed samples.

08 June 2020 8,938 6 View

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

Is IMPACT FACTOR justified in case of Taxonomy?

There is huge pressure of getting good impact factor on scholars now a days. On the other hand Taxonomy is a very dry subject and the concerned papers can only get citation in same group of organism.

26 February 2021 5,851 1 View

Hello house, is it necessary to compute Content Validity Ratio (CVR) for an adapted questionnaire pls?

What should one do if he obtains conflicting results between Content Validity Index (CVI) and CVR for items in a quetionnare. For example based on the CVI obtained the items are acceptable but the...

25 February 2021 7,325 2 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

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 is the most accepted taxonomy in Resistance to Change literature?

I am searching for a well accepted taxonomy of resistance to change and in terms of its underlying causes/roots.

04 February 2021 497 3 View

How Islamic State recruited European experts?

I am looking on literature analysing how Islamic State recruited civilian experts as computer technician, experts in managing public goods, doctors, nurses... from Western countries. Is there...

21 January 2021 6,148 10 View

Does anybody know about literature on protest and post-conflict processes/societies? What would you recommend?

I am trying to start a project on the subject and your help would be appreciated

18 January 2021 2,190 6 View

Conflict resolution at socio-economic disparities?

Conflict resolution at socio-economic disparities? Two-way honest approach driving through varying characterized bi-parental upbringing, that further leads societal interactions into one to one,...

14 January 2021 7,589 1 View

Numerical taxonomy with SPSS?

Hi everyone, I was wondering about the possibilities of performing numerical taxonomy with SPSS software. I would be very thankful to recieve advice!! For now I have been reading about...

12 January 2021 5,549 3 View