What statistical analysis would I need for a questionnaire?

Let me first start by saying I'm dyslexic, two universities were unable to teach me research methods and statistics in a way that worked with my dyslexic limitations, and I've continuingly failed...

08 July 2020 8,712 6 View

I'm looking funding and grants for a medical study in deep brain TMS in Vancouver Canada - anybody have any suggestions about who to apply to?

Deep brain TMS study with paired PET scans for individualized targeted treatment based on individual brain functioning reads before and after treatment of deep TMS in identified areas in the PET...

09 March 2020 6,612 3 View

Can a cell membrane be overloaded with too many particles attempting to enter?

When more than one biomolecules attempt to enter into a cell membrane at once (in a large quantity) does it impede the transfection process?

23 July 2019 4,149 2 View

[solved] Can you explain a +44 mass difference in peptide synthesis?

Dear experts, after peptide synthesis (standard Fmoc chemistry, no acetylation between the couplings), I have a significant peak next to my main product for analytical reverse phase HPLC (see...

20 December 2018 782 7 View

Can you help me finding a list of transparent polymers suitable for light microscopy including refractive index?

We develop medical devices for characterization of thin tissues which should be produced from plastic/polymers (wall thickness

29 September 2018 5,445 8 View

Dear, could anyone point me to a good multivariate statistical analysis book?

I want to improve my knowledge in this area. I would like indications of good books that you have studied.

22 July 2018 4,867 10 View

What do you think of the Comet Assay?

Dear Investigator, The comet assay has been in existence for many years, but the general protocol largely remains unchanged, despite it requiring numerous, time-consuming steps. We in the...

12 October 2017 911 3 View

How to stop DAB precipitation during IHC

22 June 2017 2,939 3 View

HPLC-ESI MS analysis of Coenzyme A, Malonyl-CoA, and ATP?

Hi all, we run our HPLC (Agilent 1100 series) usually with C18 or C8 columns, using acetonitrile/water gradient with 0.1 % HCOOH. We have a DAD detector and can attach the HPLC outlet directly to...

07 March 2017 2,150 3 View

How to determine oxygen amount / composition of a gas sample?

Hi, we recently had problems with some syntheses where we use nitrogen flow to remove a byproduct (tBu-SH) from a reduction reaction from a reaction mixture. The educt is a StBu-protected peptide...

17 January 2016 2,441 4 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View

Analysis of CRD two factor using R studio ?

Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...

28 February 2021 8,189 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Should we reduce the standard unit of length to 0.31951540592 meter ?

The reasoning behind this question is to align the ratios of the proton potential in energy per charge to the speed of light in distance per time. As these two dimensions appear to be related,...

27 February 2021 947 7 View

Does RNAiMAX transfection reagent work in serum free medium?

I diluted siRNA and RNAiMAX in opti-MEM and added to the cells which they were in the growth medium. Is it a right way? or should I culture cells in the opti-MEM medium for a while and not in...

26 February 2021 10,041 3 View

Where i will get the Desmodium and Napier grass seeds?

26 February 2021 975 4 View