Can you recommend a task-based material that can be used to compare with the currently used textbooks in English teaching?

Hello everyone, It was my first experience for a research. I plan to explore the differences in grammar teaching in the two kinds of books: one is task-based and one is currently used in a...

29 October 2020 5,495 4 View

Any difference in model selection between SAS and R?

Hello all, We are working on a project as a team and some of us using R and I am using SAS. For some reason, we are getting different best models using forward and stepwise methods. I am getting...

10 November 2018 7,179 1 View

Minimum clinically important difference (MCID) and sample size calculation for interventional studies

Hi all, Would you please advise me how to use the "minimum clinically important difference - MCID" to calculate sample size for interventional studies? Are there any web based sample size...

18 May 2017 4,868 8 View

Is it right to calculate O/C ratio from deconvolved peak areas of C1s peak?

I am performing graphene oxide reduction on SiO2 substrate. In this case, the XPS spectra will measure C1s, O1s and Si2p. Due to the O in SiO2, the O/C ratio cannot be simply calculated from C1s...

08 February 2017 7,301 6 View

How can I validate the purity of GST-tagged protein?

18 December 2016 1,769 9 View

Why it keeps popping out 'sequence stats calculation failed' while completing the upload of sequence data to MG-RAST?

I was uploading the sequence data to the MG-RAST server, and the notice that sequence stats calculation failed kept popping out when the upload process was about to complete, meanwhile the...

02 August 2016 932 4 View

Does anyone have idea why shRNA and SiRNA show opposit effects on immune response on RAW264.7 cells?

Hello everybody, I am trying to produce ShRNA stable cell on RAW264.7. I succeed to get cells which is around 70-80% knockdown in puromycin selection condition. But the thing is when I measure the...

22 May 2016 7,188 6 View

Culturing EOL-1 cell line (a human eosinophil cell line)?

Dear all, I would like to ask for your advice with culturing culture Eol-1 cells (eosinophilic cell line). I resuscitated cells from frozen stock and suspended in RMPI 1640+ 10% FBS + 1% PS. After...

01 May 2016 6,653 8 View

Is it normal to have the immunofluorescent staining result like this? What's possibly wrong with it?

I used formalin-fixed paraffin-embedded liver tissue to do the immuofluorescent staining, but the result doesn't look good, can anyone tell me what is possibly wrong with it? I used 20% normal...

06 April 2016 942 9 View

Could anyone give me advice on PE & PE-Cy7 compensation in flow cytometry?

I used OneComp eBeads (eBioscience) to set up the compensation for PE & PE-Cy7. However, in the single PE staining tube, I couldn't achieve two distinct populations with similar mean values. I...

06 October 2015 3,326 6 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 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

What is the procedure to determine the permeability of concrete?

can anyone help me in this, it will help me with my research work

01 March 2021 834 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

I need to accelerate corrosion in steel parts that are used in a salt-water environment. Is there a technique for doing so?

I have a structure that employs d-ring swiveling tie-downs that corrode during use and become "frozen". I have sample swivel assemblies that I wish to corrode to see if I can free them using one...

01 March 2021 3,739 3 View

Glass fiber content in a gypsum board ?

Any idea on how to get the volumic ratio of glass fiber in a gypsum board ? Thank you for your help !

01 March 2021 2,501 3 View

Apart from Nanosilica and CNT's what are the other nanomaterials readily available to use in concrete mixture?

Nanotechnology in concrete materials

01 March 2021 3,379 3 View