Excel formula for assigning grade?

I have a excel sheet with positive and negative value. I have 4 grades to be assigned. How can I use a formula to assign the grades? I have tried using the IF nested function but due to negative...

21 October 2020 5,648 7 View

Statistical test for Inter and intra rater agreement between 2 observers for gradings? any excel based template for the same?

Hello, I wish to calculate inter and intra rater agreement between 2 observers who are gradings Xrays for degree of bony fusion into 6 grades. In all there are 1750 xrays. Which statistical test...

11 August 2020 1,001 4 View

How common is COVID19 among pediatric population?

Most papers not giving in details about the disease in children. Any one have idea about it. Is Children are protected?

09 March 2020 6,642 39 View

Can a use of Demineralized water with PH of 5 to 6 to clean aluminum cause corrosion?

06 March 2020 793 6 View

Which is the best ELISA assay kit for the measurement of mouse serum and urine creatinine?

Hi, I am looking mouse ELISA kit for the evaluation of creatinine level in serum and urine. Could you please suggest me which kit is most reliable for this assay? Regards, Nirmal

03 December 2019 824 4 View

How many maximum number of authors should be included in a good quality review paper?

During the writing of a review paper it is very difficult task to add number of authors. However it varies person to person and their contribution in paper. but, there shld be any ideal number...

01 August 2019 3,687 16 View

Why high alumina cement is resistant to sulfate?

In OPC, C3A and C2AF has high affinity to sulfate (gypsum) to form mono-sulfate or ettrengite. But in contrast, high alumina cement is good at resisting when exposed to SO4- environment. Why?

05 June 2019 2,994 8 View

Reason to provide tensile reinforcement in short column?

above question is for hypothetical and for purely academic purpose Sir/ madam i wanted to know that i have short column of huge section of 500mm x 500mm for purely axial load of 300kN IS code...

07 April 2019 8,254 4 View

Is it feasable to store blood serum samples in liquid nitrogen for long term?

01 August 2018 7,343 3 View

Has anyone tried to do langendorff free adult mice cardiomyocyte isolation following this prorocol?

Has anyone tried to do langendorff free adult mice cardiomyocyte isolation following this protocol? https://www.ncbi.nlm.nih.gov/pubmed/27502479 I have few questions to ask about plating the...

05 February 2018 4,346 2 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

Is there any effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

Adherance of Polyaniline coating over stainless steel?

Is the electropolymerisation of polyaniline coating over stainless steel (SS) via Cyclic voltammetry technique is really adherant? Else how to improve the adhesion of the coating, whether any...

01 March 2021 8,220 2 View

Is there a method of determining feed digestibility without the need to re-pellet the feed?

I am aiming to determine the ADC values of a commercial fish feed, but I do not have a steam pelleter or extruder available to me. Ideally, the pellets could be coated with some inert marker....

28 February 2021 7,967 3 View

How to immerse bricks in wax ( for coating ) ?

Do we immerse the bricks horizontally or vertically ? #bricks#waterproofingsurface#civil#engeenering#chemicalengineering#wax#parafinwax

28 February 2021 6,685 2 View

For gelatin coating for culturing HUVEC.Should the gelatin be made in sterile water or PBS? Do I need to autoclave the gelatin soln after making it ?

I want to use 0.1% gelatin. Should that be made in PBS or sterile water? Should I autoclave the gelatin soln after making it in water/PBS?

28 February 2021 274 2 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

What pH condition required to coat APTES on silica coated Fe3O4?

It's a hydrolysis reaction, which may produce by either acid or base-catalyzed reaction. so can anybody help me with this, which condition is suitable for this reaction?

26 February 2021 1,760 8 View