With or without a Control Group?

Hello, I will do a research with K-12 students (my own students), and it includes a treatment which will last around 3 months. We will see how and whether it will affect their motivation. That's...

08 February 2021 632 4 View

Can I add a neutral option in a 4-point Likert scale?

Hello, I want to use a motivation scale with my students (secondary school) for my research, but the scale is in a 4-point Likert style with no neutral option (Certainly true - True - Not True -...

04 February 2021 4,757 13 View

What if there is no population to pilot an adapted questionnaire? What about its reliability and validity?

Hello, I'm new to this platform, and this is my first ever post in here. So, please excuse me in advance if I happen to cause any inconvenience. Coming back the question; I have just adapted a...

26 January 2021 9,030 4 View

"The following block is not supported in Phasor simulation?

I am designing a control system for Hybrid renewable energy systems using Matlab/simulink/simscape, but currently having a problem. Whenever I run the simulation, I get the error shown below. "The...

12 January 2021 2,142 5 View

What is a variabel to analyze empirically or attest a theory of Malthus (Economic Major)?

I have a project to evidence Thomas Robert Malthus theory about a principal of population (Malthusian Spectre/Malthusian Trap). I want to attest, his theory about a relationship of population and...

02 January 2021 8,146 3 View

How can i conduct Multivariate Regression Analysis in Eviews?

I'm interested in estimating the impact of business risk on capital structure (CS) and dividend policy (DP). My study focused on three hypotheses. The first and second hypotheses focused on...

01 August 2020 3,253 3 View

What constitutes a good university degree?

Please do not just read, your reflective comment is highly needed There are thousands of universities mostly in developing countries that are considered to be of 'low standard'. However, if...

18 July 2020 1,206 39 View

Privacy data and Zoom meeting?

Hi everyone, Undoubtedly, there has been a surge in the number of users of "zoom" to organise meetings during the COVID-19 pandemic. As such, there have been some reservations among users and...

01 April 2020 1,441 1 View

How can I integrate Gal1 promoter in front of CDC48p?

I need to integrate Gal1 promoter in front of CDC48p. The problem is that i dont know the right carbon source to include on my G418 plate. I have tried varying concentration of Glucose and...

08 March 2020 7,989 2 View

How do i design concrete piles with a rough surface for my research?

My research topic is "The pullout capacity of batter piles in sand; effect of pile dimension, pile roughness"

06 February 2020 9,159 2 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View