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

HPLC baseline failure (ACN/Water)?

My baseline increases without any explanation, it is only fixed by changing the solution B, will it be the column? Reagents? Bomb? Detector? Solution A: H3PO4 0.01% IN WATER Solution B: H3PO4...

21 February 2021 5,656 3 View

Which drug is better to modify blood pressure in awake monkey, if I provide it in the food or drink reward?

I need to modify the blood pressure in a monkey while is awake in the recording chamber, and I am planing on provide a drug for that in the food or water used for reward... any advise? Thank you

08 February 2021 9,900 1 View

Why do my cells die during transfection with JetPei?

Hello everyone, two months ago I did a transfection of HEKs cells to insert a miR using the JetPei reagent. On that occasion, the transfection was highly efficient and the cells were in perfect...

03 February 2021 1,296 6 View

Moving bacteria-like organisms in my HEK293T cell culture?

Hi everyone, I have been culturing HEK293T cells that have been engineered to overexpress the mechanosensitive protein Piezo1. However, I am finding it very difficult to keep them in culture -...

02 February 2021 7,892 4 View

Are there any solutions for remote eye-tracking?

Since with the pandemic it doesn't look like we are going back to the lab soon, in my lab we were looking for solutions to conduct remote webcam-based eye-tracking. I've been looking at...

31 January 2021 7,315 5 View

Has anybody a protocol to determine the AChE activity in larvae zebrafish brain?

Even following the instruction of Karnovsky and Roots (1964), I still do not know how long I should fix the larvae and in what fixative. Could anyone help me? Thank you!

14 January 2021 385 2 View

What fluorescent dye can be used in fixed cells for membrane imaging?

07 January 2021 4,802 2 View

R package for multivariate dispersion as a measure of beta diversity?

Hello, everyone: I've been reading some old and new papers on how to compute beta diversity using incidence or abundance data from several assemblages/communities. For my data, I am interested...

03 January 2021 9,293 1 View

How to structure a Knowledge Management model, to strengthen research and improve educational quality in higher education institutions?

22 November 2020 8,558 9 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Methodology for bird counts (census) in airport?

Hello. I am looking for a description of a methodology for bird counts (census), which is applicable to airport area and will allow me to collect the data about species diversity and abundance at...

11 January 2021 3,213 3 View

If anyone can suggest or review manuscript having keywords Riparian zone, River, Species richness, Species evenness, Ornithofauna?

Greetings I am Sachin Kumar, pursuing my Ph.D. in Ornithology, from PAU, Ludhiana. I am working on avian diversity along the River Beas. I had submitted a manuscript to a journal having keywords...

10 November 2020 7,194 6 View

Do you have an endnote style for Marine Ornithology?

Any seabird folks out there have an endnote style file for Marine Ornithology? Nothing available online, trying to avoid creating one from scratch - thanks! Perhaps we can make the file publicly...

01 November 2020 9,642 7 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

Does anyone have experience with movement-based kernel density estimation (MKDE)?

Hello, I have mapped the locations of several individuals of a certain species of bird. I have the GPS coordinates, the date and the time data every half hour for several consecutive days and I am...

26 September 2020 3,712 2 View

Are half duplex or full duplex PIT tags the standard in ornithological studies using RFID technology to track avian movements?

I am looking for the correct selection of tags to use to monitor tree swallows moving in and out of nest boxes. My impression is that full duplex tags would be more appropriate but many studies...

26 May 2020 4,647 4 View

What are the statistical methodologies currently available for combining mist-net and audio-visual surveying methods for birds?

While there are a number of studies that employ both constant effort mist-netting and audio-visual survey methods, there are very few that combine the numbers from those surveys into a single...

10 May 2020 8,432 1 View

Monitoring breeder/floater ratio in bird populations in relation to nest-site availability?

Hi all, I was wondering if you know of any case in which breeder/floater ratio in birds is monitored over the years while observing changes in nest-site availability. Floaters in one of my focus...

29 March 2020 8,213 28 View

Can we use Ebird Personal Checklists as standard Journal References?

05 March 2020 2,002 7 View