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

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

I am designing a microfluidics device for PCR. I am wanting to order PDMS for the substrate, however am unsure on which varitation of it to order?

There are many different terminations of PDMS , hydroxy, amine etc. Does this affect the final chip? Unless I plan on using the functional groups will it even make a difference?

19 February 2018 2,427 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

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 BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View