How to you store Norepinephrine powder?

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PVP can be dissolve in 1- pentanol or 1- butanol? It's the same result?

at the preparation of the C18 alkyl silica, the paper used n-pentanol to dissolve PVP, in my lab I have 1- butanol. Could it be the same?

20 May 2024 5,933 1 View

What are absorbance maximum and extinction coefficient of 4,4′-Diisothiocyano-2,2′-stilbenedisulfonic acid?

Maybe there are more fresh data than old reference in Sigma-Aldrich?

19 May 2024 9,483 0 View

¿Conocen software o apps que recomienden para la transcripción de grupos focales o entrevistas grupales en español?

Hola a todos/as! ¿Cómo estás? He visto que existen apps con AI para asistir en la transcripción de grupos focales. Probé uno (Notta) que tiene una versión no paga que alcanza para testearlo y no...

17 April 2024 640 0 View

How could we implement -xthenreg (GMM threshold) with robust errors (Stata14)?

Could you please clarify how to add robust (white) errors to the function -xthenreg in Stata14? I am running Threshold GMM Estimator (Seo and Shin (2016)) for my panel (N=60, T=28). Commands such...

03 April 2024 8,500 1 View

Where can I find floral sleeves for 10cm x 10cm pots in the UK?

We use Aracons for Arabidopsis but need something to contain larger plants in larger pots. All garden supplies stores I've been in person and online only sell sleeves with 10cm bottom openings,...

02 April 2024 9,337 0 View

Which cell-penetrating peptides (CPPs) do you recommend to deliver intra-cellular cargo in chitin cell-walled unicellular eukaryotes?

Dear colleagues, I am working on a project in which I want to deliver oligonucleotides (specifically, molecular beacons (MBs)) inside different protist species. To do so, I am going to use...

18 March 2024 2,778 0 View

¿Estarían formulados correctamente los siguientes objetivos para abordar una adecuada intervención con víctimas y supervivientes de trata?

1.1.- Reducir los obstáculos de las personas víctimas o posibles víctimas de trata con fines de explotación sexual y sus hijos/as en su acceso a recursos, prestaciones y ayudas forales. 1.2.-...

10 March 2024 8,166 1 View

Is there any posibility that the phase matching of gcpw is depended on spacing or anyother factor?

I am designing two RF tracks (Transmission lines) based on Grounded Coplanar waveguide. The length of both tracks is same, but there is still a phase difference between two tracks.

16 February 2024 6,718 2 View

Which tool is the most reliable for predicting RNA secondary structure in oligonucleotides?

Dear colleagues, I am designing RNA molecular probes for FISH, and I want them to adopt a hairpin structure. I have checked for the possible secondary structure formation of some of the candidate...

14 February 2024 7,811 2 View

If i delete my google sholar profile, can i create a new one?

If i delete my google sholar profile, and 30 days for recovery profile pass, can i create a new one?

14 December 2023 8,329 3 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

The Curse of Evolution and Complexity?

Brain and body mass together are positively correlated with lifespan (Hofman 1993). The duration of neural development is one of the best predictors of brain size, and conception is the best...

05 August 2024 6,247 3 View

Can the limit of quantification (LOQ) of an analytical method fall outside its linear dynamic range, or must it always be within it?

Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...

29 July 2024 7,198 9 View

Where to start the Analytical model for Dry sliding wear of metal surface ?

I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.

29 July 2024 6,115 0 View

I am working on my Master's thesis on the biogeography of the genus Ruagea and I would like to ask, could someone help me to check whether my result?

I created a file with my outgroup and ingroup species using Beauti, ran it in BEAST, viewed it in Tracer, and then used TreeAnnotator to create a file that I imported into RASP. Could someone...

28 July 2024 2,979 1 View

What is the best method to detect the chemical composition of pollen ?

I have multiple small samples of grass pollen with anthers. I want to find a method to identify concentrations of proteins, lipids, and other various elements for these samples. any suggestions?

28 July 2024 5,331 1 View

Could you try using PeptiCloud and see if it's a useful tool for biology research?

PeptiCloud (www.pepticloud.com) is a bioinformatic platform that allows researchers to organize and share their data for their projects as well as collaborate with others in one place. Through...

28 July 2024 4,762 2 View

Do you know of any online international conferences that offer free discussions?

Do you know of any online international conferences that offer free discussions? I am looking for examples in the field of molecular ecology and DIY biology.

28 July 2024 6,501 0 View