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

Which microwave applications are commercialised in mineral beneficiation processes?

Processes included such as leaching, synthesis, drying

15 December 2012 9,466 1 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

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

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View