How to input an exogenous variable in a GARCH model?

Hello, I have a question regarding financial time series. I am studying the effects of Quantitative Easing on the US stock market. I have tried to fit an ARIMA model to my S&P500 returns with...

01 February 2021 8,325 3 View

Where do I make a mistake in calculating dispersion for a uniform FBG?

I've been playing with a code for simulation of FBG properties. Code is using CMT and TMM implemented in matlab. Can anyone tell me why are there those sudden "drops/falls" in calculated...

12 March 2019 2,911 2 View

Can you suggest good sources for network analysis? Or advices how to do conduct one?

Me and my collaborators are going to conduct a network analysis and we would like to learn as much as possible about this method before starting coding our data. Thank you!

21 December 2017 6,732 13 View

Can anyone help with refolding after heat denaturation?

Is there any influence of heat denaturation on outer membrane proteins (bbarrel)? Except defolding of course, something like permanent structure change? If protein will be expressed as inclusion...

01 December 2013 4,791 9 View

Your experience with ERC Consolidator Grants

Dear Colleagues, I am thinking about applying for ECR Consolidator Grant (I am 9 years after receiving my PhD). I have checked the web page of the scheme and I would be very interested in your...

01 January 1970 2,773 1 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

No title

01 March 2021 3,905 5 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

How do historians determine the credibility sources in modern history?

For a source to be considered reliable it must contain accurate historical information. But how does one determine the accuracy and reliability of sources in modern and recent history since not...

23 February 2021 1,346 13 View

Methodological confusions regarding deductive and inductive reasoning, hypothesis and theory test?

Hi Colleagues- What do you think about the following methodological issues: 1. Is it methodologically wrong to formulate quantitative research questionnaire based on inductive reasoning? 2. Is it...

21 February 2021 4,634 6 View

Where I can find materials to learn Fuzzy VIKOR methodology?

Please suggest ways to learn Fuzzy VIKOR methodology in a best possible way. And is there any toolkit available for the same? Thank you in advance.

20 February 2021 8,271 3 View

Where can I find a reliable and updated methodology related with the design of spiral heat exchangers?

I need to design an spiral heat exchanger, buy I don't know what reference or bibliography (preferably a book) should I consult in order to get an updated and reliable methodology related with...

14 February 2021 7,910 3 View

Can an airplane stay up in the the air without moving forward just like helicopter ?

How the lift and weight cancel each other perfectly for a helicopter to stay it motionless? Because its propeller do generate huge amount of lift due to air pressure plus a blend of air stream...

09 February 2021 3,990 14 View

What is the difference between MRC (medical research council) and NPT (normalization process theory)?

And can I conduct one of them within my methodology? and how?

08 February 2021 2,859 2 View

How to create the context-mechanism-outcome configuration (CMOc) in the realist methodology?

In the realist methodology (especially by Raymond Pawson et al), the CMOc is a common structure to explain what works, for whom, in what circumstances, and why? I'm always asked about the...

08 February 2021 2,792 1 View