What is the simplest way to compare two ROC curves and their respective AUC for a paired design (measured on the same subject)? I use R to perform statistical analyses, but I am also familiar with SPSS. Thanks!
Hi! I am researching Career Construction Theory's Adaptation model as applied to student success in university students. While I have found good measures of career adaptability, adapting...
08 May 2023 4,318 0 View
Himalayan leucogranites, pegmatites, boron
07 April 2023 7,825 2 View
Electron Probe Microanalysis, Granites
27 November 2022 2,927 6 View
Hello , I am performing Modal analysis for ultrasonic cylindrical horn at a frequency 20KHz. After performing the linear perturbation analysis to find the natural frequency of the horn the end...
20 July 2022 8,159 4 View
Granites, Himalayas, temperature, pressure, Isotopes
06 July 2022 6,008 6 View
As a function of the relative isotope masses, the lead isotope ratios fractionate differently from the true value and has more than one radiogenic isotope. Which methods are preferable, then, in...
01 July 2022 9,307 0 View
There are many problems relating to stretching or squeezing of sheet in which we obtain a dimensionless parameter which contains "x" or "t", symbolizing a local behaviour of the parameter on the...
27 January 2022 5,559 3 View
Does the dates to evaluate the age vary with analytical methods ? 207Pb/235U dates,208Pb/232Th dates, 206Pb⁄238U ,LA-ICPMS Leucogranites, Himalayas
29 December 2021 5,512 2 View
origin, granitic melts, Leucogranites, Himalayas
18 December 2021 6,881 3 View
In a three-electrode cell, what difference (if any) would there be in the observed redox reaction / CV plot if the working and counter electrodes were made from the same or different materials....
15 September 2021 5,246 0 View
Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!
11 August 2024 3,770 4 View
I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...
08 August 2024 8,329 0 View
Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...
29 July 2024 7,198 9 View
I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.
29 July 2024 6,115 0 View
Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...
26 July 2024 3,460 2 View
I know the difference between instrumental LOD and method LOD but my query is - in case of any sample whose concentration is zero or not detected by the instrumental LOD, is it possible to get...
24 July 2024 6,592 5 View
Hi, Just curious to know that in chromatography, a chromatogram should be zoomed to what scale? 10 times of output , 50X or ..? Is there any regulation or general chapter which describes this?...
03 July 2024 3,119 6 View
I am trying to analyze lipids in plants; specifically pollen by using Sulfo-Phospho-Vanillin (SPV) Method! Can I prepare a standard curve for this estimation using soybean, sunflower, or olive...
01 July 2024 3,267 1 View
Hi everyone! After thinking about it on my own, I'm posting a question here. Has anyone ever tried creating qPCR standard curve samples (plasmid or DNA standard) by inserting multiple target...
30 June 2024 1,569 1 View
Meaning of the term STATISTICS as I have thought of is as follows: S T A T I S T I C S Systematic Tentative Analytical...
28 June 2024 4,011 1 View