Euler-Cauchy differential equation is homogeneous linear differential equation, Why.

A second order non-homogeneous differential equation is of the form y"+a.y'+b.y=g(x). For non-homogeneous differential equation g(x) must be non-zero. A second order Euler-Cauchy differential...

07 August 2016 1,762 12 View

What is the correct definition of degree of a ordinary differential equation?

06 July 2016 4,563 22 View

Are the SCIE journals under the SCI journals?

05 June 2016 7,508 0 View

Is some may provide basic books on cosmological model ?

I request to all to provide some basic books on cosmological model. If possible please provide. Thanking you?

01 February 2016 8,774 9 View

May provide anybody the list of SCI paid or Impact factor paid mathematics journals?

I wish to find the list of SCI paid or Impact factor paid mathematics journals. Can anybody have such list of journals. if possible please provide.?

01 February 2016 988 4 View

What is impact factor of the journal "ENGINEERING, TECHNOLOGY AND APPLIED SCIENCE RESEARCH" ?

how I can verify the impact factor of the journal ENGINEERING, TECHNOLOGY AND APPLIED SCIENCE RESEARCH ? In Research Gate this journal shows 0.43 Impact Factor while in JCR list i am unable to...

01 February 2016 9,706 3 View

Is n-dimensional space-time exist.

Many authors are working with 4-dimensional space-time in which 3 dimension is of space and 4th is of time. Can we think about n-dimensional space-time in which (n-1) dimension is considered for...

08 September 2015 3,332 0 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

How to evaluate unsupervised clustering metrics when some elements do not have a cluster label in the result?

I run algorithms like HDBSCAN and MeanShift, and compare them with K-means and GaussianMixture. The first two algorithms do not return cluster labels for some elements in the dataset. My question...

27 February 2021 428 3 View

How to make a time series imputation benchmark ?

Hello ! In a work, I have to benchmark different algorithms to fill in missing values in time series. I insist on the fact that this is imputation and not forecasting. In my case, I have access...

24 February 2021 7,470 7 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

Can we recognize signs of the "volatility clustering" property of a time series in its time domain plot?

My purpose is to recognize the volatility clustering property without statistical tests such as The Lagrange Multiplier (LM) test.

24 February 2021 4,150 3 View

How can I obtain time series data by country on night-time light (brightness) ?

Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...

24 February 2021 8,625 4 View

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future ?

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...

23 February 2021 7,842 1 View

How to run repeated measures in mvabund?

I have a dataset of fish species abundances collected from 6 different habitats over the course of 30 years. Fish were collected multiple times per year and environmental variables were recorded...

21 February 2021 3,838 1 View