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

My mysterious red dye may not be neutralized before HPLC/MS as it is only stable between pH 12.5-12.9. Who could help with equipment tolerating pH13?

More information in https://www.chemistryviews.org/details/education/10821368/150_Years_Alfred_Wohlk.html

04 July 2019 1,409 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

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

What kind of intervention will be relevant to increase motivation among young sport trainees?

Any suggestion on what book to read is also welcome.

03 March 2021 1,646 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

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

What element is driving the different slop in the low frequency tail?

My study consists simple corrosion inhibitors in salty brine. Right now I just fit my circuit with randles with CPE. Just wondering how the slop can given more info of the experiment. Or any...

01 March 2021 6,474 3 View

Genome-wide gene identification protocol ?

Is there any book chapter/book, webpage or research article available to understand genome-wide gene identification?

28 February 2021 8,095 1 View