Are there any country controls available for cross sectional data?

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Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

How to enrich pig excreta for increasing nutrient quality organically ?

Pig slurry is rich in major and minor nutrients. Is there any way to improve / Enrich its manure quality to be used in agriculture organically ? please share your knowledge.

09 August 2024 5,605 2 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 269 3 View

Unusual intensity drop in some sections of chromatograms in DDA?

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07 August 2024 3,218 4 View

Leaf area of tomato ?

Hi How can this equation Ln(LA) = 1.038 + 0.89 ln(X) be applied to calculate the leaf area of a tomato? Can you explain with an example and what is the substitution of Ln and ln?

06 August 2024 2,508 2 View

How to fix background error in rietveld refinement of one XRD peak using GSAS-II?

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Why did the authors extrapolate a phenotype that they experimentally proved in one bacterial strain across the whole genus of the organism?

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How to preform densitometry on SDS-page bands?

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XRD Analysis is showing only Calcium carbonate. It is not showing other compounds. Can anyone help me get the other compounds?

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Which solvent is better to dissolve with secondary metabolites extracted from fungi?

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03 August 2024 4,725 2 View

Can formaldehyd-fixed gelatin be melt?

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How to fix errors in my heat transfer steel structure with reinforced concrete slab model Abaqus?

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Microtome tissue sectioning - How to prevent chatter of paraffin tissue specimen sections?

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06 August 2024 666 4 View

What should I do with parameters that are not relate to my simulation in MyLake model?

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Do we put respondents data in research methods or findings section of a qualitative study?

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22 July 2024 6,988 4 View

Radar Detection Probabilities using beta distributed Scattering Cross section?

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Systematic review meta-analysis paper?

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Do anyone experiment occasional staining problems with cryoprotectant containing Polyvinyl-pyrrolidone and Ethylene glycole?

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Eliminate the autofluorescence of red blood cells in mouse spleen paraffin sections?

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Mohamed-Mourad Lafifi

Dear Yusuf,

I suggest you to see links and attached files in subject.

Geosciences and Water Resources: Environmental Data Modeling

https://books.google.dz/books?isbn=364260627X

-Socioeconomic factors, material inequalities, and perceived control in ...

https://www.ncbi.nlm.nih.gov/pubmed/11037221

-Définition de référence de l'OCDE des investissements directs ...

https://books.google.dz/books?isbn=9264045767

-The Brain Drain and the World Distribution of Income and ... - CReAM

ww.cream-migration.org/publ_uploads/CDP_04_07.pdf

-International Migration and Global Economic Inequality

https://www.e-ir.info/.../international-migration-and-global-econo...

Best regards

Yusuf Hassan

Thank you sir but i think these papers are not answering my queries. I am looking for country variables that i can use to control for variation in different countries.