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

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

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 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

Benefits of the 24 welled plate?

We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...

28 February 2021 1,149 1 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Is there any teachers based in UK who would like to take part in my study?

24 February 2021 4,833 3 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

What does it require to be ready for e-Commerce in developing countries?

Most developing countries are not ready for e-Commerce? What dimensions and indicators are there to measure e-commerce readiness of a nation? Please share framework or model and evaluation...

22 February 2021 8,132 6 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

How to construct different filler shape in MD simulations?

Is there any way to construct different initial filler shapes like triangle, square, rectangle, pillar, and tube in any simulation software.

20 February 2021 1,750 1 View