What colour is a resorufin solution at pH < 6.1?

The redox dye resazurin (dark blue) can be reduced in aqueous solution at pH > 6.1 via resorufin (pink) to dihydroresorufin (colourless). What colour is the resorufin solution at pH < 6.1?

21 January 2021 8,442 2 View

We use Thermo Scientific Superfrost plus gold coated slides. Why our cryo sections of dry fruits do not stick to the slides?

We use Thermo Scientific Superfrost plus gold coated slides. Why our cryo sections of dry fruits do not stick to the slides?

13 January 2020 1,215 1 View

Are smaller insect species more sensitive to residual insectides?

Alarming declines of insects elicited a vivid public debate, particularly in Germany (#Insektensterben), but also in many other countries (see...

06 September 2017 7,975 4 View

Someone knows a company that offers gene synthesis in expression plasmids for use in plants?

16 May 2016 8,212 3 View

Which flower signals are honest?

There are some reports about honest floral signals, e.g. flower colour change in many flowering plants correleted to nectar production, size of Dalechampia bracts indicating the size of a resin...

25 April 2016 1,418 5 View

Which pan trap colors are attractive for bees?

Dear All, I want to learn about pan trapping of bees and the most attractive colours. Does anybody know published spectral reflectance curves of pan trap colors? Can anybody explain the term...

08 March 2016 7,710 44 View

How does flower suntracking correspond to bee foraging behaviour?

Many flowers show heliotropism and the flowers are sun tracking. The discussed benefits of sun tracking flowers are heating up the flowers for better pollen germination and seed production, and...

26 January 2016 9,316 5 View

Does it make sense to compare linear regression slopes in the Murmansk region (Russia) using air temperatures from gridded E-OBS data?

12 June 2015 8,483 14 View

Why do some researchers neglect multiplicity in the calculation of statistical significance?

14 February 2014 786 3 View

Do you already know the species composition of the latest cyanobacteria outbreaks in Uruguay?

Informal reports provide ample evidence of heavy outbreaks of Cyanobacteria in freshwater and marine ecosystems of Uruguay...

01 January 1970 7,033 19 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View