Can all physics be explained in terms of mathematics or do we need a hybrid approach?

Physicist chose to ignore the infinite nature of universe while modeling it as mathematics but it is a fact that we can never model the universe completely in terms of mathematics. Still all the...

09 October 2014 4,898 4 View

Can AKS prime number test be modified to factorize in polynomial time?

I am working on an approach to prime factorization in polynomial time using a modified AKS primality test. Do you think that the following approach will work? ----- If a test similar to AKS for...

09 October 2014 5,391 6 View

Can a quantum mechanical wave be a square wave?

09 October 2014 7,513 10 View

Is there a duality between matter and light?

09 October 2014 649 10 View

Can the wave function of a single free particle in time evolve into two same wave functions?

Can the wave function of a single free particle in time evolve into two same wave functions (like single free particle) under a potential? What are the conditions under which it can happen?

09 October 2014 7,145 1 View

Can we design an experiment to prove that speed of a particle cannot go from below light to above light?

09 October 2014 7,545 40 View

Do we always presume structure of universe before defining it?

Inertia is 'resistance to change'. General Relativity talks about inertial entities, which have mass. An inertial entity X given 2 points A, B in space-time, has to follow the topology of...

09 October 2014 3,961 10 View

Can anyone who has access to an accelerator try the method in this paper to push particles above speed of light?

08 September 2014 4,408 0 View

Can someone from university collaborate to conduct faster than light experiment?

Can someone from a US university with access to an accelerator or interested physics theory of speed above light collaborate with me to conduct the experiment suggested in the following paper's...

08 September 2014 8,566 0 View

Why are mainstream physicists against the super luminal physics?

Why are mainstream physicist generally against theories, which describe faster than speed motion or communication? Is it proven in experimentally that it cannot happen or is it just a bias based...

08 September 2014 9,058 60 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 find the right number of integration points in second order 3d finite elements?

I am familiar with finite element simulations and numerical schemes like the Gauss Legendre quadrature. I also know that the Gauss integration yields exact values for polynomials up to degree 2n-1...

27 February 2021 6,818 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

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

Can someone help me with this error that I am getting while estimating a VAR model in R?

I am using annual time series data to estimate a VAR model in R. However, when I run the command to find the optimal lag length, I get the following error: Fehler in VARselect(data, lag.max = 10,...

18 February 2021 9,647 3 View