Maps of african eezs?

Hi Anyone! I need a public domain map of the EEZs of sub-Saharan Africa... any help??? Thanks!

13 January 2021 7,758 5 View

How to solve a non linear system?

Hi everybody, I have a non linear system of 9 equations: F=A(F)F+B(F)g(F) F is a 9x1 vector of the unknowns, A(F) and B(F) are 9x9 matrixes which depend on F ang g(F) is a 9x1 vector which...

12 November 2020 9,972 6 View

Why is 'Scale' considered a spatial continuum, but not a dimension of space?

Consider the books 'Cosmic View; The Universe in 40 Jumps' by Kees Boeke (1957 - the original inspiration for the others), 'Sizing Up the Universe: The Cosmos in Perspective' by Gott, J. Richard...

27 December 2019 1,030 1 View

What ARIMA model is indicated when, after taking first differences, the ACF and PACF both cut off after a significant first lag?

For my dissertation, I am looking at a time series of retail sales and want to identify an ARMA model to fit the data. I have differenced the original data series as it was non-stationary and now...

28 March 2019 3,815 7 View

What are some researchable PHD topics one would consider in digital finance for a finance students?

This for a thesis

05 February 2019 1,254 3 View

I am looking for a computer based Troxler task. If not, are there alternative methods to time visual habituation with Troxler fading?

I have a student that wants to measure visual habituation using Troxler fading. We would like to find a computer based version, if anyone has one they would like to share, but if someone knows of...

06 November 2018 7,310 1 View

What is the appropriate statistical method to test a new DNA sequencing method?

Good Day All, I have new molecular-based diagnostic test which focuses on detecting SNPs in a 10 different genes. The DNA diagnostic test is actually probe based so it is looking at relatively...

22 May 2018 6,225 1 View

Scoring the PSSM questionnaire?

I am thinking of using the PSSM as a data source for my Action Research Dissertation. Is there a rubric for scoring the questionnaire? Thanks! Don

06 November 2017 2,411 2 View

How do you work with pseudoislets from cell lines?

10 July 2017 8,603 4 View

Best tissue type for DNA extraction from formalin fixed samples

I am about to attempt to get genomic DNA (for genotyping by sequencing) from frogs that were fixed in formalin and subsequently stored in EtOH, and I was wondering if anyone had recommendations on...

05 March 2017 9,525 1 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

I am looking for a simple software program to model 3D chemical bonds. The purpose is to generate high-quality graphical abstracts. Any suggestion?

Hello everyone: I am looking for a simple software program to model chemical bonds. The purpose is to generate a high-quality graphical abstract for a top leading journal in the field of...

23 February 2021 8,012 3 View

How to estimate 2SLS with different instruments for different endogenous variables?

To be specific, I want to conduct an IV regression in stata with the following three equations. EQ1: Y1 ~Y2 Y3 X EQ2: Y2 ~ Z1 EQ3: Y3 ~ Z2 Both Y2 and Y3 are endogenous. However, Z1 and Z2 are...

23 February 2021 6,266 3 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

Which is the best software or programming language (user friendly) for analysing data?

I have a basic knowledge on Python, R and MATLAB in analysing data. Among those, which is the best and user friendly? Which one should I learn deeply to analyse data?N:B: I want to learn data...

20 February 2021 3,950 15 View

Can we use image data in MATLAB Neuro Fuzzy Designer ?

I have remotely sensed data (image) that I want to use in the Neuro-Fuzzy Designer apps of MATLAB. Is it possible to use an image file in the Neuro-Fuzzy Designer app or only numeric data is...

17 February 2021 1,205 5 View

What is/are the best ML classifier(s) for Sentinel2 images?

Hi I am trying to segment a sentinel2 image. At this stage, I want to run a binary classifier that assigns each pixel to either farm or non-farm pixel. For this purpose, I have 4 10m bands...

15 February 2021 3,596 9 View