What statistical test should I use for the comparison of proportion between groups, one of the proportion being 0?

I would like to compare the proportion of mice with resistant bacteria in their faeces. I have three groups, and in one of them not a single mouse has resistant bacteria. I cannot perform Chi2...

25 August 2020 3,579 2 View

How do you deal with large ANSYS Workbench analyses?

Hello, I am trying to evaluate stresses on a model which is quite large and I have memory limitations. I've seen cases ( http://www.padtinc.com/blog/submodeling_ansys_mechanical/ ) where people...

10 July 2020 5,913 3 View

Lamp (bulb) for iCycler iA iQ5 bio-rad..?

Hello everyone, Has anyone ever change the bulb (lamp) in a iCycler iA iQ5 bio-rad? Bio-rad does not sell this lamp anymore, and I'm searching for an alternative solution. However a bulb with...

27 November 2019 2,467 1 View

I was wondering if there are qualitative articles about what leads to impulse buying?

07 October 2019 850 5 View

I'm looking for a PK software that can simulate time-concentration graphs via inputting various variables (ie. Vd, kel, F, etc.)?

Thanks in advance! Purpose is for teaching.

19 August 2019 6,293 1 View

Can any one help me with an analysis grid of school books including indicators on the development of logical reasoning ?

Can any one help me with an analysis grid of school books including indicators on the development of logical reasoning in mathematics, experimental sciences ?

11 June 2019 3,525 4 View

How to blast a fast file with multiple sequences in a genome?

Hello to all, I have a complete genome of a plant and a fast file with multiple sequences of a specific protein ( nucleotide sequence). I want to blast the file into the genome to see if these...

08 February 2019 3,473 5 View

Formvar-coated grids - grey colour, best method?

I need to prepare formvar-coated grids for TEM. I usually use an uncommon method of a drop of formvar on water, however the formvar film is usually uneven. Another and more common method is by...

03 December 2018 2,250 5 View

Long term storage of Cholera Toxin B ?

Hi, I am planning to use Cholera Toxin B for neuroanatomical tracing. The CTB conjugated with Alexa Fluor dyes can be obtained in the solid (500 ug or 100 ug powder) form from suppliers and,...

05 November 2017 8,721 1 View

Hippurate hydrolysis test for Campylobacter jejuni negative after long term storage at -70?

Hippurate hydrolysis test was positive for Campylobacter jejuni ATCC 33560 and for other C. jejuni isolated from stool and other human samples. After 6 month storage at -70 degree hippurrate...

16 May 2017 4,535 4 View

What is the status of bread making and more bakery foods with the use of insect flour/powder?

Insects have been consumed by human diet since prehistoric times. At present, the idea of looking at insects as food has been getting traction worldwide, also in response to increasing food...

03 March 2021 6,223 5 View

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02 March 2021 3,060 3 View

What do you know about biotechnology art?

What do you know about biotechnology art?

02 March 2021 1,653 3 View

Which is the best place in the world for the plant biotechnology research?

I am searching for a good place for the Post Doc,

02 March 2021 4,053 3 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Is CD44 degraded in lysosome together with hyaluronan after CD44 mediated endocytosis of hyaluronic acid?

Also when RHAMM binds hyaluronic acid, they get internalized, will RHAMM also be degraded? Or both CD44 and RHAMM will be transferred back to the cell membrane? Asking for breast cancer cell line...

01 March 2021 8,169 2 View

How was your experience with Biomedical and Biotechnology Journal?

How was your publication experience with BBRJ in terms of peer review and reviewer comments. Did you find it fair and transparent ?

23 February 2021 3,810 6 View

Have anyone checked before Cyclic voltammograms of intial ITO substrate and E-teck?

As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...

23 February 2021 3,175 3 View

How to reduce static electricity of powder after lyophilization?

I am working on synthesizing and then purifying peptides using the SPPS system. After purification of the peptide, the peptide powder is obtained using a freeze dryer. When measuring the powder,...

22 February 2021 10,099 5 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View