Why there is a differential rotation in the Sun and what are the reasons behind it?

I know that the Sun, unlike the Earth, is not a rigid body. It's composed of a hot rotating plasma. And the equator sector has to cross the greatest distance to stay a part of the sphere, like...

08 September 2018 2,438 0 View

How to combine 2 FITS images into a single FITS file?

Hello everyone, I would like to combine two FITS files into a single one. They represent data from CALLISTO spectrometer. I would appreciate if there is a code in Matlab, Python, or IDL to do...

03 April 2018 7,648 2 View

How to add a decimal number to date-time in Excel ?

I was looking for a method to add a decimal number that represents the hours like this for example 30.12 hours (hh:mm) to a date-time cell like this for example 6/12 17:45 (M/dd hh:mm) and get an...

02 March 2018 6,349 0 View

Why do we need to apply machine learning in Space Weather?

What's the advantage of using artificial neural networks, for example, in order to tackle space weather challenges?

31 December 2017 7,004 0 View

Why does the duration of solar flares tend to be much shorter than the duration of type-II solar radio bursts?

Why does the emission wavelength directly proportional to its duration?

31 December 2017 1,939 6 View

What's meant by "fold" in the electron density models?

04 May 2017 9,892 0 View

How to plot a fitting line on type-II radio burst data?

In the attached images, the "Data.jpg" image is a spectrogram for a type-II radio burst with frequency on the y-axis and time on the x-axis and the intensity of the signal is labeled with colors....

04 May 2017 246 2 View

How to include the Solar Wind indices in the Neural Network?

01 February 2017 8,761 2 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 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

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View