Which heating methods do you recommend for establishing a poultry house (oil heater, gas heater, electric heater)?

I think a gas heater is better for the lower operating costs

03 January 2021 385 18 View

Can stainless steel be used as a substrate for polymeric thin films in SEM?

A Polymeric thin film is been made by drop casting method on the stainless steel substrate. Now I need analyze the produced thin film by SEM. So can I use this one, I mean the steel as a substrate...

24 December 2020 2,732 7 View

How to obtain a wet deposited film by spin coating method?

I tried to deposit some polystyrene thin films by the use of spin coating method. I should mention that the solvent which I used was toluene. The films which I obtained were totally dry. While I...

14 December 2020 4,655 5 View

Do you think that the president in Iraq should be able to change the economic situation?

13 December 2020 7,193 3 View

Do you think that COVID-19 is completely disappear after vaccine discovery?

one year age and COVID-19 was the main subject that distracts the human minds. before few days, a vaccine was completing its trial experiment to be used in prevention among human beings. do you...

07 December 2020 9,422 8 View

Should I take sample from surface or subsurface for soil analysis?

I am currently doing my final year project on Geochemical analysis of peat samples. I will be looking at parameters such as major and trace elements plus anions and cations. Should i take samples...

27 November 2020 6,668 18 View

Saturation temperature and operating pressure?

22 November 2020 6,151 2 View

Do you agree with beall s list of predatory journals?

some said that beall s list is not an official web-page, so not all reported information are true. do you agree or disagree with this? and how you evaluate its list of journals and publishers?

12 August 2020 9,543 5 View

Journals interested in publishing about coronavirus disease?

do you have any idea about the name of journals interested in publishing articles related to COVID-19?

22 May 2020 4,842 8 View

How to interpret Rarefaction curves? What does OTU mean?

Hello! I am trying to interpret this rarefaction curve as I am reading an article regarding the relationship between gut microbiota and diabetes, but I can't understand the figure. So if anyone...

25 April 2020 5,038 8 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 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

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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Can NFL theorem be valid in infinite search space in ML?

NFL theorem is valid for algorithms training in fixed training set. However, the general characteristic of algorithms in expanded or open dataset has not been proved yet. Could you show your...

01 March 2021 1,189 3 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

How to address this issue in the analysis of Real-Time PCR results?

To dear Researchers, I was analyzing a series of concentration for estimation of Real-Time PCR efficiency. The concentration was 1:10. I used MS-excel to evaluate Slope. The result of slope was -8...

01 March 2021 8,683 4 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

How to arrange coordinates and extract climate dataset out of MPI-ESM-MR netcdf files?

Have a nice day everyone, I'm stuck in extracting datasets out of MPI-ESM-MR netcdf files because the latitude ranges from -3*10^6 to 3*10^6 and longitude ranges -5,9*10^6 to 5,9*10^6. Plus, the...

28 February 2021 912 3 View