How does the pH of medium affect on the color change of anthocyanin pigments, what happens?

Anthocyanin pigments have several colors that vary depending on their influence on a range of factors, including acidity of the medium, temperature, level of plant nutrition, agricultural...

08 September 2019 3,884 3 View

What are the degrees of freedom in statistics?

Degrees of freedom have a very important role in calculating the ANOVA table, what is the meaning of df, and why calculated n-1?

08 September 2019 3,949 3 View

Safety of human life and Nanotechnology?

Is the nano-materials of the elements in the various uses of this technology safe for the health of the worker or the consumer?

08 September 2019 5,827 4 View

Nano-material properties?

Is the magnetization of liquid Nano-composites a practical benefit in improving the quality and productivity of the plant, kindly who has research in this direction to provide us with many thanks?

08 September 2019 6,021 5 View

What is the role of the middle ring for coloring anthocyanin pigments?

There are many color of anthocyanin pigments?

07 August 2019 4,872 2 View

In concrete crack modeling using Extended FEM how one can treat the existence of reinforcement rebar when the crack path intersect this rebar?

The Extended Finite Element is innovative method used for treatment the discontinuity problem that faced the FE model during cracking process. Still a problem raises when the concrete is...

06 July 2018 2,030 4 View

I ask if it is possible to model cracking in reinforced concrete using Extended Finite Element method?

Extended Finite Element (XFE) method is a new approach used to treat the discontinuity results from concrete cracking. It is well known that XFE is applied sufficiently for crack propagation in...

25 February 2018 2,958 3 View

I ask if it is possible to model cracking in reinforced concrete using Extended Finite Element method?

Extended Finite Element (XFE) method is a new approach used to treat the discontinuity results from concrete cracking. It is well known that XFE is applied sufficiently for crack propagation in...

01 February 2018 2,404 4 View

What is the fracture energy?

Brittle materials such as concrete fail by cracking when they are subjected to tensile stress and by crushing when they are subjected to compression. Most of theories of failure applied to theses...

01 February 2018 456 1 View

Is there any design code or code of practice regarding specially shaped reinforced concrete columns?

I am looking for a code of practice for design of reinforced concrete columns having arbitrary cross-sections such as angle, tee of cross shapes

31 December 2017 1,001 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

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 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

Where i will get the Desmodium and Napier grass seeds?

26 February 2021 975 4 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

Is there any teachers based in UK who would like to take part in my study?

24 February 2021 4,833 3 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