Covid 19 : As schools prepare to resume in August, how can I effectively engage my students (middle schoolers) if my district decides to go online?

As schools prepare to resume in August, how can I effectively engage my students (middle schoolers) if my district decides to go 100% online?

05 July 2020 2,384 4 View

How do you cope when you have a major paper presentation and your paper is not ready?

Many times in my experience as an academic, I arrive at a conference venue with the nagging feeling that my paper is not yet what it should be. Lead paper presenters have sometimes confessed to...

26 December 2018 5,499 5 View

How can one extract xyz data from .DAT files?

I am looking to quantify the surface roughness parameters of some of rock grain samples I recently analysed with an optical profilometer. The information that was obtained from the equipment was...

02 September 2018 6,462 3 View

Here is an article motivating the development of a specialty called Statistical Medicine. Is this really necessary?

Statistical medicine: An emerging medical specialty

18 October 2017 585 3 View

What is the ionospheric mechanism responsible for this case?

The night time values of TEC is observed to be higher than the daytime value in Dec. Solstice. See the attached figures. The station is located at the high latitude in Northern hemisphere.

18 July 2014 4,287 5 View

Could this compound be a dimer or a racemic mixture?

I have isolated this flavonoid glycoside from the ethyl acetate fraction of the leaf extract. The C-13, and DEPT135 NMR experiments shows there are 2 carbonyl peaks, 16 other C- peaks as well as...

22 May 2013 7,013 2 View

How do I go about packing and what are the possible solvent systems?

I have very polar fractions from TLC which I suspect to be flavonoids. From my findings, I was convinced of the possibility of using a C-18 RP column for the separation. However, I have not used...

03 April 2013 2,406 10 View

Canvas vs google classroom: which is better?

If you have the option of using either google classroom or canvas. Which one of the two would you choose (which of the tools would engage the students more? Why?)

01 January 1970 4,619 5 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

Diltuions for a Western blot?

I need help using the equation C1V1=C2V2 figuring out how much antibody to add to use for a western blot. The stock was origianlly 3.45 ng/ul but diluted 1:10 so now its 0.345 ng/ul. I need to run...

22 February 2021 9,901 3 View

What are alternatives for B27+ Supplement in neuronal cell culture?

Hello everybody In our iPSC-derived neuronal culture we use Maturationmedium, supplemented with B27+. As Thermo Fisher run out of stock and can deliver earliest in May, I wanted to ask whether...

16 February 2021 3,348 1 View

How to revive a Hyphomicrobium strain?

11 February 2021 3,524 2 View

Bradford assay for insulin: discrepancies between standard curve and sample concentration during crystallisation?

Hi there, I would like to determine the unknown concentration of human insulin in my sample during crystallisation (the concentration range is roughly 0.5 -2 mg/ml, whereas the initial...

06 February 2021 9,370 7 View

What if we go for one single global currency?

What if we go for one single global currency? than every country has its own currency. Currency exchange commission etc. (Advantages/Disadvantages)

04 February 2021 8,937 3 View

Does Location Map of Informal Settlements in South Africa exist?

I urgently need a map that shows the point locations of informal settlements in South Africa. I am currently working on a study that seeks to relate protests location to the location of informal...

02 February 2021 4,113 7 View

How to measure volume of Pinus roxburghii ?

I want to measure volume of Pinus roxburghii in the Jammu region of India to calculate the carbon stocks of Pinus roxburghii.

31 January 2021 2,311 3 View

Where can I find the information about steel final production in Japan?

I am doing research about the in-use stock of iron and steel in Japan. I need the report about annual yield of steel final production. I found some information in the webpage of Japan Iron and...

25 January 2021 3,867 2 View