Questions about correlation:: can i correlate a categorical variable (like resources) and a continuous variable (like an index) or this is false?

i want to see the type of relation between a categorical variable (resources:forests, agricultural soils etc.) and a continuous variable (an index). i believe that it may seem to be run through...

02 March 2018 2,974 10 View

Does anybody have access to information in relevance to research of promoting sustainability in transition societies?

Hi I would be happy if someone can provide information like papers talking about promoting sustainability in countries in transition (Eastern Europe). I am interested to know how these...

11 December 2017 8,744 3 View

Does anybody have information for organic agricultural establishment at a local level ?

08 September 2017 2,245 0 View

What test do i need to use to relate three categorical variables with a continuous variable?

Please if anyone knows the answer explain to me as i need to make a relevant analysis.

03 April 2017 6,150 2 View

What can we do as citizens to confront and eliminate illegal logging?

I believe that illegal logging can be stopped after citizens initiative to act against it is enhanced. Though, this means that illegal logging can be prevented if citizens become alarmed about...

02 March 2017 4,611 0 View

Can anyone tell me how mitigation of climate change is best confronted?

i want to have a general view for ways of minimizing impact of climate change and if mitigation can provide such endeavors.

10 November 2016 8,077 11 View

What about municipal solid waste management: difference between integrated management and sustainable management ?

I want to clarify the difference between: integrated management and sustainable management, of solid waste. any opinions seen as relevant?

08 September 2016 1,992 19 View

How construction firms should address domestic energy retrofit measures?

11 December 2015 5,211 2 View

Can somebody tell me what sustainable livelihoods means?

does it mean like livelihoods that can be acquired through sustainable economic activity or not or something else?

09 October 2015 7,653 3 View

What is the most dominant approach for sustainable livelihoods practice?

07 August 2015 1,608 0 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

can I treat waste water containing solvents and alcohol with electrocoagulation?

there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...

27 February 2021 2,609 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View

How vulnerable is water and wastewater infrastructure to cyber terrorism in an age of IoT?

Im looking for any papers, reports,articles, links etc on information on How vulnerable is water and wastewater infrastructure to cyber terrorism in an age of IoT.

24 February 2021 2,750 4 View

To date, according to health authorities, 30% of the population's diseases are initiated by drinking water pollution. Do you know this problem?

The main studies are as follows: * regular and timely receipt of information about the state of the environment using automated systems (stationary and mobile); * operational analysis of the...

23 February 2021 912 5 View

Multinomial probabilities and confidence intervals - obtaining the CI of the reference category?

Hi, Some background to my question: I have fitted 1st order multinomial Markov models with covariates. Since all probabiilties (for each row of the transition matrix) sum to 1, I estimate only...

22 February 2021 2,541 4 View