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

Hi everybody I want publish my Ph.D work Can anybody suggest me some publishers who publish thesis work ?

18 September 2017 9,747 11 View

What is good protocol for fixation of rat Kidney and eye balls?

Does anybody know good protocol for rat kidney and eyeball fixation? I have frozen kidney and eyeballs in -80 and want to fix them for IHC. I tried few protocols but eyeball get broken or...

20 April 2017 6,004 3 View

Can we isolate gDNA from -80 stored brain homogenates (no tissues)?

I have brain homogenates (supernatant after centrifugation) stored in -80 long ago. I need to do genotyping in those samples but i do not have blood of those samples. What i have is homogenates...

13 September 2016 2,797 3 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Which is better medicine or food in obesity?

Preference in terms of the scientific aspect

28 February 2021 796 2 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View

Multinomial probabilities and confidence intervals - obtaining the CI of the reference category?

Hi, Some background to my question: I have fitted 1st order multinomial Markov models with covariates. Since all probabiilties (for each row of the transition matrix) sum to 1, I estimate only...

22 February 2021 2,541 4 View

What are some underexplored theories and concepts in Activated Carbon as A Water Filter?

Hi, me and my team mates are currently planning to pursue the topic of Activated Carbon from Coconut as a Water Filter. And we would like to ask for your suggestions and knowledge on what specific...

22 February 2021 6,569 3 View