What could be the reasons for discrepancies in stationary R-squared and MAPE?

Attached is a Table summarizing the MAPE and stationary R-squared values obtained for alternative exponential smoothing forecasting models for different variables. In general, the model with the...

08 May 2020 549 2 View

What is the criterion to determine the minimum number of lags required to make a meaningful forecasting using ACF?

I hope to forecast swine population using last 30 years of census data. The original time series has 81 time points (from 1937-2017) and I have already worked out the ACF correlogram (attached...

15 December 2019 3,582 3 View

Can i use food grade collagen hydrolysate or gelatin hydrolysate for electrospinning procces instead of research grade collagen or gelatin?Thanx ?

Since research grade collagen and gelatin are quite expensive and i have to import which means it will take much time i am searching for alternatives. Can collagen hydrolysate or gelatin...

17 November 2019 8,313 3 View

I am planning to produce solvent cast membranes of collagen and gelatin. Which form should i use powder or solution? Thank you in advance?

The aim is to produce solvent cast scaffolds for bone tissue engineering. The prices for solution and powder forms of the materials differ drastically. That's why beforeI buy the raw materials I...

24 October 2019 6,821 3 View

HL60 cell differentiation using 1.3% DMSO?

07 October 2019 6,851 2 View

What are the effects of flour gel hydration properties on bread crumb structure development?

Dear Colleagues, Can anyone describe how Water Absorption Index, Water Solubility Index and Swelling Power of the flour type we use for bakery products can affect the porous crumb structure...

08 June 2019 4,591 2 View

What is the best model from the following exponential smoothing models?

I have modeled four non-seasonal exponential models using time series data on pork production over the period 1978-2012. data from 2013-2017 were hold-out for model validations. For simple...

31 May 2019 2,109 4 View

Is there any alternative method for OLS regression?

I have cross-sectional 144 firm level observations in order to measure the stock performance. OLS model (multiple regression) results are free from autocorrelation and heteroscedasticity errors....

18 December 2018 7,460 20 View

Measuring long run stock returns using Cumulative Average returns (CAR) and Buy and Hold Average Returns (BHAR). Can ultimate answers be same?

16 December 2018 1,608 3 View

How can I test models with both reflective and formative constructs using AMOS? Is it possible or do I have to use a different software?

I'm trying to test a SEM with several reflective constructs. I want to add Political Party Affiliation and Political Orientation (e.g. democratic, republican) to the model. I have used two...

09 May 2016 8,579 3 View

Is it okay to mention you distributed your qualitrics study link through social media sites?

Just want to be clear and know it is okay to say I have distributed the qualitrics link through social media such as Facebook, Instagram and Twitter to ensure my target audience is reached in my...

21 February 2021 5,143 2 View

How to extract posts from Facebook and Twitter with certain tags?

Hello All! I'm currently doing research on my thesis that i have to extract the data from Twitter and Facebook using certain tags? can someone help me how to do this?

04 January 2021 2,651 4 View

Which ancient town was the birthplace of Homer?

From the time I went to Greek school, this was a hot topic with no real answers. Suddenly, this investigator, Asterios Tsintsifos who is not an academic, but simply writes on Facebook, presents a...

17 December 2020 7,282 7 View

I am working on fake news detection. Where can I get fake news dataset?

I am working on fake news detection system that published in newspapers and/or facebook. How and where can I get fake news dataset to train my model?

10 November 2020 5,072 5 View

How should I analyse mass-media content?

Hello, I am writing my bachelor's degree and I want to study how a certain party communicates through mass-media (I am most interested in Twitter, Facebook and Youtube). How should I approach...

05 November 2020 8,414 4 View

Using facebook for surveys?

Hi, Has anyone had any good (or perhaps bad experience) using a "boosted" survey on Facebook? Has anyone been able to publish using this channel for data collection? Or has anyone been...

12 October 2020 6,697 4 View

Does anyone have experience /idea about conducting survey by using boost posting option of Facebook?

Looking for suggestions to conduct survey by using boost posting option of Facebook

13 September 2020 4,388 1 View

Big players moving small innovation in-house? - theory?

Hi I have a question; is there a theory or or some literature on how new innovations that start in small entrepreneurial SME:s get absorbed as functionalities into big established players? Some...

27 August 2020 2,372 3 View

How to conduct a sociopragmatic analysis of Facebook posts related to COVID-19 outbreak in a certain speech community?

I am doing a study on analyzing and interpreting the sociopragmatic features of approximately 350 Facebook posts shared by Kurdish speakers in Kurdistan Region, Iraq. For presenting the different...

11 May 2020 8,051 1 View

What are main sectors may be affected by COVID-19?

What are main sectors may be affected by COVID-19? By other words, technology is one biggest filed will change the world in next years. Moreover it will affect on the shape of many jobs like...

10 May 2020 5,158 26 View