Why is there no ANOVA output for a certain predictor variable in my GLM (in R)?

Configurations: Rstudio v1.3.1093 Packages: car, lme4, MuMIn, DescTools Model: myGLM

22 January 2021 5,284 6 View

Does anybody know the mathematical formula of the Taylor-Russell-Matrices?

I want to determine the success rate of an personnel selection instrument (interview, assessment center...) depending on the validity of the instrument itself, the selection rate and the base...

29 November 2020 7,190 4 View

Is there a short questionnaire on environmental barriers to physical activity?

Dear colleagues, we carry out a research project in a company neighbourhood/industrial park to promote physical activity in the occupational setting. Using a standardised instrument, I would...

01 March 2020 6,577 3 View

Recovery of CO2 in Supercritical CO2 extraction

Hello all, For some research on super(sub)critcal fluid extractions, I am examining SFE CO2 systems. On websites of manufacturers of these plants they state that the CO2 used in extraction can...

10 August 2017 5,058 4 View

Intracellular cAMP quantification: Is it feasible in cells/samples suspended in RIPA buffer?

I want to evaluate the amount of internal cAMP levels. Unfortunately, I suspended my cells of desire in RIPA buffer. Is it possibly, despite the harsh buffer, to determine cAMP levels in an...

23 April 2017 2,996 8 View

Where can I find a current open source vector map of Jakarta that includes the drainage network?

30 March 2015 9,071 9 View

Searching for an alternative for the internal standard dibutyltin D17?

I want to use it to analyse dibutyltin in surface water. For tributyltin I have already an internal standard (tributyltin D27) and it is performing very well. I am trying to buy dibutyltin D18...

17 September 2013 5,713 3 View

How to determine coke (reductant) resistivity?

Electrical conductivity and resistivity of coke during smelting of ores is a pivotal parameter. Measurement of the coke resistivity seems to be problematic and no standard method is available.

13 May 2013 6,958 1 View

Has the van Arkel process to produce titanium metal from titanium iodide been commercialized?

Sublimation process

15 December 2012 9,735 1 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

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 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