Engelbert Buxbaum

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Questions related from Engelbert Buxbaum

Is ammonium sulphate aerosol (PM10, PM2.5) toxic and by what mechanism?

Air pollution by ammonia is produced mostly from animal husbandry. It reacts with acidic air pollutants (HNO3, H2SO4) to the corresponding salts which make a considerable part of the fine dust in...

04 August 2025 5,649 0 View

Does anybody know the gross calorific value of DNA?

The gross calorific value is the amount of energy produced when a substance is burned with excess oxygen in a bomb calorimeter.

01 August 2024 9,618 0 View

Can I calculate the scores of new test subjects from an existing PCA?

I have performed a principal component analysis, with interesting results. Now I want to add new test subjects to the study. Can I use their data to calculate their component scores using the...

07 June 2024 4,028 2 View

How do I calculate the rotated score matrix after PCR?

Hi, I want to do cluster analysis with large data table (163 variables with 1500 test persons). By PCA I found that about 20 significant components explain 75% of the variance. I also found that...

12 September 2018 5,437 4 View