Can I use Simpson index of diversity formula to calculate the probability of each species being in different sampling stations?

I have 4 sampling locations and 23 species abundance data. Using the same concept and formula of Simpson index of diversity, instead of calculating the probability of individuals of different...

16 August 2020 6,514 1 View

How can I use axial tensile (stress and stain at different strain rate) data to shear and bulk data for ANSYS viscoelastic prony series?

I have data for axial tensile test. So I have tensile elastic modulus prony data for general maxwell model. But unfortunately in ANSYS I can only input Shear and Bulk relaxation data (prony...

12 August 2019 1,849 1 View

How to get high resolution in cation exchange Liquid chromatography of two basic analytes?

23 January 2017 2,493 5 View

What is the difference between Inertsil column and conventional columns in RP-HPLC?

In RP-LC there is a type of C18 column called Inertsil. Is there any difference between it and the conventional C18 columns in terms of separation, selectivity, resolution..etc.

01 September 2016 2,469 8 View

What are the main causes of retention time instability in reversed-phase analysis by HPLC?

In analysis of a weak acid with pKa of 4.6, using mobile phase of phosphate buffer pH 7.7 and methanol (63:37, v/v) and hypersil C18 column, the retention time of this analyte is not stable (it is...

20 May 2015 8,079 13 View

How can I choose the best equation to evaluate the Ce anomaly in sediment and biota?

14 May 2015 7,644 10 View

What is the antioxidant activity (FRAP and ABTS) of vitamin C as positive control compared to plant extracts.

Antioxiadant activities of plant extracts are measured using FRAP and ABTS assays, and usually vitamin C is used as positive control. The question is what is the antioxidant activity of Vitamin C?

17 February 2015 2,001 8 View

Is it possible to combine multiple meta-heuristic algorithms to improve their individual performance?

Normally, to enhance the performance of the meta-heuristic algorithms, local search based techniques are integrate with them. Instead of using local search techniques, if multiple meta-heuristics...

10 February 2015 9,480 29 View

Do USP analytical methods need validation?

USP methods are usually validated and needs only system suitability test. But the question do really they need validation?

20 January 2015 9,315 3 View

What is the function of protein phosphatase PP1-gamma catalytic subunit in tumor development?

I try to understand the different function of PP1 different catalytic subunits (beta and gamma) in tumor development and suppression. We know that PP1 regulates a few hundreds of different...

21 December 2014 7,940 1 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 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

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View