How can I model a prediction of a dependent variable using BOTH a predictor at time 1, time 2 AND the change (time 2-1) of this predictor?

I want to model the following: DV: Y at time 3 IVs: X at time 1, X at time 2, change of X from time 1 to time 2 Which is the most appropriate way (preferably in SPSS). I am afraid I cannot use...

10 December 2020 264 3 View

Can you recommend me tree databases?

Hi. I have slight experience in searching phylogenetic trees, normaly I use TreeBASE or Dryad but some papers that I found doesn't have the resulting trees in these databases or there are genetic...

26 October 2020 582 3 View

Could ANOVAs be used as a substitute for regression models for mediation analysis?

Hello all, I hope you can help me with these questions. I am developing a mediation analysis using the mediation package in R. I need to analyze the influence of perceived learning (Mediating...

18 August 2020 7,521 9 View

What would be the fate of ecotoxicology in the South American studies?

I'm currently working on ecotoxicology and I'd like to know what my colleagues from the same area think, especially in South America. Too much of microplastics in my opinion, but few studies...

18 May 2020 1,064 2 View

(epidemiology) how does one measure the RATE of infectivity?

I am not an epidemiologist, nor am I studying epidemiology, this is a question born of sheer curiosity due to current events. I understand (more or less) the principle behind the basic...

19 March 2020 9,458 3 View

How can I clean insect exoskeleton?

I want to remove whole soft tissues and maintain intact the exoeskeleton

10 March 2020 4,345 6 View

How would you evaluate "Interpersonal Trust" for people who are sharing a 4-seat vehicle with people they do not know?

Hi. I am conducting an experiment and I would like to understand if people would be willing to share a 4-seat vehicle with people they do not know. I have thought that the personal tendency of...

10 December 2019 7,989 3 View

How to handle output data for Taguchi DOE?

I am using a L8 (2 level, 4 Factor) DOE. I have completed the experiments and am now trying to sift through the data and start the analysis. I completed these experiments in a strictly production...

03 December 2019 1,977 5 View

PDL1 expression in PB lymphocytes by flow cytometry?

is there anyone who study PDL1expression in PB lymphocytes by flow cytometry in healthy controls and in pathological cases ( cancer) Oddly, we found that healthy controls express more PDL1 than...

02 December 2019 4,873 3 View

How can i measure health well-being ?

12 August 2019 8,050 3 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

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

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the best way to keep an anaerobic chamber anoxic in the absence of hydrogen?

I'm a graduate student who works with an anaerobe, so I often work in an anaerobic chamber. I've been working on an assay that involves the steady-state of the quinone/ quinol pool. Anoxic...

03 March 2021 2,971 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View