Please take this survey?

Hello! I am a second year Clinical Psychology student at William James College. I have conducted a survey as part of my Doctoral requirement that measures the effectiveness of Cognitive Load...

12 February 2020 2,709 3 View

Metabolites (antibiotic) extraction from microbes?

Can we centrifuge culture broth that already mix with solvent? Or we must centrifuge first to collect supernatant and add the solvent to supernatant?

05 June 2019 923 3 View

Extracting metabolites from actinomycetes?

02 March 2019 9,275 3 View

Extracting metabolites from bacteria with methanol?

If we are extracting metabolites from bacteria with methanol, which layer should we use (top or bottom layer)?

24 January 2019 5,731 1 View

What happen If we add methanol to supernatant cell culture (bacteria)?

Will they form two layers ? (Organic and aqueous phase)?

10 November 2018 1,500 1 View

What is in the supernatant after centrifugation?

What happen If we add methanol to supernatant? Will they form two layers ? (Organic and aqueous phase) Or just one phase? Why we use methanol instead water for extraction? (antibiotic compound)

10 November 2018 8,295 4 View

Why are my extracts (glucosamine) not completely soluble in water?

Hi, I have extracted glucosamine from lobsters shell, however my extracts are not soluble in water,Could you please tell me why and give me a suitable way to dissolve them in water? Thank you

04 May 2018 7,295 3 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

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

How to remove fatty material from plant extract?

The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.

28 February 2021 9,464 2 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How to make fractions of chloroform extract of plant, using seperating funnel?

28 February 2021 8,466 2 View

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

How to arrange coordinates and extract climate dataset out of MPI-ESM-MR netcdf files?

Have a nice day everyone, I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the...

28 February 2021 912 3 View