How to calculate total flavenoid content?

16 August 2020 5,323 4 View

We are planned to conduct status of communicable disease among health institution in Gondar after COVID 19. what type of study design is appropriate?

anyone who had a tool to assess the above-proposed project please help us?

29 April 2020 1,477 8 View

Is coronavirus able to reinfect Survivors? Any scientific evidence, yet?

According to https://www.worldometers.info/coronavirus/, as of March 23, 2020 (3:00 PM, at GMT+3) About 87% of Corona cases have been reported to completely recover from the disease and got...

22 March 2020 2,122 7 View

How to calculate individual fatty acids in egg GC-FID analysis?

Details of how to quantify each fatty acid contribute to the total. Formula and procedures of calculation and interpretations...

01 January 2020 9,170 3 View

Does anyone know a company that manufactures a continuous pancakes, dosa or kisira making machine that can be used as such or tailermade for injera?

I was wondering if there exists a company that manufactures a continuous pancakes, dosa or kisira making machine that can be used as such or tailermade for injera, an Ethiopian sour bread? Please...

11 July 2019 3,209 3 View

Any good suggestion of materials that help learn R stat for beginners?

I have never used R stat before, because of the requirement of knowing programming language. But apparently, it is the only freely available program for statistics. I used SAS a couple of times. I...

17 April 2019 4,262 8 View

Can phosphate-solubilizing microorganisms (PSM) are available on market? is that possible to cultured them in the laboratory and with what media?

Because, P-solubilization ability of microorganisms is considered to be one of the most important traits associated with plant phosphate nutrition

07 April 2019 633 2 View

How to choose the correct POSCAR for VASP calculation?

Hi I have proposed a low energy structure of (ZnS)6 cluster using genetic algorithm software and prepared POSCAR (1 POSCAR) using VESTA for VASP calculation. But the POSCAR I obtained from...

20 March 2019 7,406 3 View

Is there a strut and tie model (STM) independent of the support plate and loading plate dimensions?

The capacity of the strut and node in the STM depends on the dimensions of the support and loading plates; however, these values are not provided in most of the literature.

18 June 2018 8,652 2 View

What do you do on the first day of class in a college or university?

What do you do on the first day of delivering a course in a university or college to take up your semester on the correct path, and operate your first day of a course into the best learning...

24 December 2017 1,935 3 View

Can I use a time series dependent variable in a panel regression?

Hi all Can I run a Gmm model with a time series dependent variable? I have a sample of 12 countries and years from 2000 to 2018

03 February 2021 6,491 6 View

SEM for panel data ?

I'm trying to find the effect of smart cities on sustainable development. I collected data for several indicators of smartness of a city for 15 cities over 12 years. seems like panel data (GMM...

12 January 2021 9,914 5 View

Macrostudies using sysGMM?

Dear all, Could you recommend macroeconomic studies (hopefully published in good journals) that use system GMM or Arellano-Bond estimators? Thanks a lot!

10 December 2020 5,130 4 View

GMM with very short time, is three enough?

I first conducted a fixed effect model using xtreg y x, fe and I found that all the variables are significant and R-squared is .51. So I thought that maybe I should use two step system GMM to...

07 October 2020 5,386 3 View

Exactly same results of OLS ,2SLS and GMM model?

I run OLS regression on panel data in Eviews and then 2SLS and GMM regression. I introduced all the independent variables of OLS as instrumental variables. I am getting exacty same results under...

05 April 2020 4,683 1 View

Why do researchers use GMM-UBM instead of SVM as a classifier?

The Gaussian Mixture Model with Universal Background Model (GMM-UBM) takes individual class training data to train the GMM and uses all training data or different dataset to build the UBM. In this...

03 March 2020 260 3 View

Should we collapse instruments in large samples?

Collapsing instruments in a system GMM model is useful in treating the problem of instrument proliferation. However, the instructions given to xtabond2 of Stata suggest that "In large samples,...

11 January 2020 4,738 3 View

Should insignificant IVs be reported in GMM?

While analyzing a linear relation, GMM produces insignificant results for the main IV in a quadratic regression model. Though the signs of the coefficients' are valid, the results are...

10 November 2019 399 5 View

What are the relevant data and model diagnoatic tests fof System GMM?

The conventional test for the system GMM is 1) testing for instrument validity and 2) test for second order serial autocorrelation. Are there pre-estimation tests that may be relevant i.e...

09 October 2019 9,938 6 View

Does Gaussian Mixture model assume data to follow multivariate normal distribution ?

I have a dataset and trying to apply soft clustering, preferably Multivariate Gaussian Mixture model, but I have following doubts : 1. Does Multivariate GMM assume the underlying data to follow...

30 July 2019 6,266 4 View