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

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

Kindly suggest modern Phd topics in Corporate Governance,Dividend Policy or Financial Economics?

Looking for a research topic for my Phd studies

24 February 2019 5,959 38 View

Why cubic Yb/Er/ NaYF4 does not show luminescence?

Using crystal structure

22 May 2016 152 5 View

Why do I get negative concentration values in AAS and ICP-AES?

I have experienced (-) negative values for a particular element in AAS or ICE-AES analysis. 1. What does this really mean and how could it happen? Can we explain it using the calibration curve? 2....

06 September 2015 2,330 30 View

I have received XRF data sheet of a rock sample where oxides are in weight percentages. Could I use those data as it is or should I treat those data.

XRF Data Analysis I have received XRF data sheet of a rock sample where oxides are in weight percentages. Could I use those data as it is or should I treat those data. For example there are some...

15 September 2014 4,468 12 View

Can anyone suggest a technique to dissolve silica gel and re-solidify it with some biosorbent particles trapped inside?

I'm trying to dissolve silica gel (use for Chromatography) using solvents or mixture of solvents. My main intention dissolve silica gel and incorporate the biosorbent. and evaporate the solvent,...

13 May 2014 2,024 4 View

AHP Priority Calculator

AHP Priority Calculator Interesting online tool, can any one use by customizing field /factors https://bpmsg.com/ahp/ahp-calc.php

01 January 1970 3,281 3 View

How to avoid the plastic deformation in concrete damage plasticity in ABAQUS ?

01 January 1970 942 8 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How to get started building and analyzing a UTAUT model?

Hello all, I need help getting started building and analyzing a UTATU model. I have a survey ready with some questions but I had some confusions on UATAUT and on how to analyze the data. I will...

02 March 2021 9,271 1 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View

Is there any expert in Smart PLS who can help me?

Dear colleagues, I have a manuscript that needs an expert in smart PLS to run the analysis, Is there anyone expert and ready to help me, please?

01 March 2021 8,212 3 View

What are the patterns of human behavior that lead to COVID-19 infections?

Does data from contact tracing help in establishing patterns of behavior and social interactions that lead to infections? There are cases here in the Philippines where patients have no travel...

25 February 2021 9,002 13 View

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View

How to deal with different types of logarithmic data for meta-analysis?

Hello dear researchers, 1.I want to know how can I compute pooled effect size when we have three types of logarithmic Mean&SD Type 1. Log (x) with base 10 Type 2. Ln (x) Type 3. Just...

18 February 2021 8,214 3 View

What are the available keys and descriptions for the identification of lice and fleas in domesticated animals?

I am an undergraduate student at the University of Peradeniya Sri Lanka, currently working on ecto-parasites in domesticated animals. I found difficulties in the identification due to a lack of a...

15 February 2021 277 1 View