You have been terminated: robots, work, and taxation.

We present a three sector OLG model with a homogeneous output good that is produced with traditional or robot technology. The traditional sector produces with labor and capital, whereas the modern sector employs robots instead of labor. Robots and workers are modeled as perfect substitutes to investigate whether economic policy under the harshest assumptions is able to prevent the ascent of a robotized economy.

The effect of lockdown on students' performance: A comparative study between Italy, Sweden and Turkey.

During the first months of the COVID-19 outbreak, countries adopted different strategies in order to mitigate the effects of the pandemic, ranging from recommendations to limit individual movement to severe lockdown measures. Regarding higher education, university studies were shifted to digital solutions in most countries. The sudden move to online teaching affected students differently, depending on the overall mitigation strategies applied.

An oral health program for children.

Caries, the most infectious chronic disease of childhood in America, leads to health, learning, and quality-of-life issues. Using the Missouri Preventive Service Program model, a pilot oral health program for children from ages birth to 5 years in a rural health clinic was the first to implement the application of fluoride varnish.

The diastereoisomers methyl 5-(S)-[2-(R)/(S)-methoxycarbonyl)-2,3,4,5-tetrahydropyrrol-1-ylcarbonyl]-1-(4-methylphenyl)-4,5-dihydropyrazole-3-carboxylate.

The title diastereoisomers, methyl 5-(S)-[2-(S)-methoxycarbonyl)-2,3,4,5-tetrahydropyrrol-1-ylcarbonyl]-1-(4-methylphenyl)-4,5-dihydropyrazole-3-carboxylate and methyl 5-(S)-[2-(R)-methoxycarbonyl)-2,3,4,5-tetrahydropyrrol-1-ylcarbonyl]-1-(4-methylphenyl)-4,5-dihydropyrazole-3-carboxylate, both C(19)H(23)N(3)O(5), have been studied in two crystalline forms. The first form, methyl 5-(S)-[2-(S)-methoxycarbonyl)-2,3,4,5-tetrahydropyrrol-1-ylcarbonyl]-1-(4-methylphenyl)-4,5-dihydropyrazole-3-carboxylate--methyl 5-(S)-[2-(R)-methoxycarbonyl)-2,3,4,5-tetrahydropyrrol-1-ylcarbonyl]-1-(4-methylphenyl)-4,5-dihydropyrazole-3-carboxylate (1/1), 2(S),5(S)-C(19)H(23)N(3)O(5) x 2(R),5(S)-C(19)H(23)N(3)O(5), contains both S,S and S,R isomers, while the second, methyl 5-(S)-[2-(S)-methoxycarbonyl)-2,3,4,5-tetrahydropyrrol-1-ylcarbonyl]-1-(4-methylphenyl)-4,5-dihydropyrazole-3-carboxylate, 2(S),5(S)-C(19)H(23)N(3)O(5), is the pure S,S isomer. The S,S isomers in the two structures show very similar geometries, the maximum difference being about 15 on one torsion angle.

Two 17-hydroxy-9(10-->5)-abeo-estr-4-ene-3,10-diones.

(5S,9S,17S)-17-Hydroxy-9(10-->5)-abeo-estr-4-ene-3,10-dione, C(18)H(26)O(3), (II), and (5R,9R,17S)-17-hydroxy-9(10-->5)-abeo-estr-4-ene-3,10-dione, C(18)H(26)O(3), (III), are equimolecular products of the Fe(II)-induced transposition of 10beta-hydroperoxy-17beta-hydroxyestr-4-en-3-one, (I). With respect to reagent molecules, the configuration at C9 is retained for (II) while it is inverted in (III). The conformations of the five- and six-membered rings are compared.