Search results for "Eugen"
showing 10 items of 115 documents
Frank W. Taussig and Carl S. Joslyn on the Social Origins of American Business Leaders: A Chapter in the History of Social Science at Harvard
2019
In their 1932 volume "American Business Leaders: A Study in Social Origins and Social Stratification," Frank W. Taussig and Carl S Joslyn, then a young Harvard graduate, argued that success in business depended more on innate superiority than on other environmental factors such as financial aid, influential connections, and formal education. The aim of this paper is to analyze the main contentions of Taussig and Joslyn, as well the intellectual genesis of, and the general reactions to, this controversial volume. Although our main focus is on Taussig and Joslyn, other figures, all directly affiliated with Harvard, will play a decisive role in our narrative—the economist Thomas Nixon Carver, …
CommercialOriganum compactumBenth. andCinnamomum zeylanicumBlume essential oils against natural mycoflora in Valencia rice
2015
Chemical composition of commercial Origanum compactum and Cinnamomum zeylanicum essential oils and the antifungal activity against pathogenic fungi isolated from Mediterranean rice grains have been investigated. Sixty-one compounds accounting for more than 99.5% of the total essential oil were identified by using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Carvacrol (43.26%), thymol (21.64%) and their biogenetic precursors p-cymene (13.95%) and γ-terpinene (11.28%) were the main compounds in oregano essential oil, while the phenylpropanoids, eugenol (62.75%), eugenol acetate (16.36%) and (E)-cinnamyl acetate (6.65%) were found in cinnamon essential oil. Both es…
Commercial Laurus nobilis L. and Syzygium aromaticum L. Men. & Perry essential oils against post-harvest phytopathogenic fungi on rice
2016
[EN] Rice is exposed in the field and in stored conditions to a great variety of fungi that can cause a lot of diseases with potential risk to consumers. In the present study, the chemical composition of commercial Laurus nobilis L. and Syzygium aromaticum L. Merr. & Perry essential oils and antifungal activity against five pathogenic fungi isolated from Mediterranean rice grains has been investigated. Thirty-seven compounds accounting for more than 99.5% of the total essential oil were identified by GC and GC/MS. 1,8-Cineole (51.95%), alpha-terpinyl acetate (12.93%) and the monoterpene hydrocarbon sabinene (9.56%) were the main compounds in bay leaf essential oil, while the phenylpropanoid…
Bomba rice conservation with a natural biofilm
2018
[EN] The chemical composition of commercial Syzygium aromaticum, Cinnamomum verum, and Laurus nobilis essential oils as well as their antifungal activity against four pathogenic fungi isolated from Mediterranean rice grains has been investigated. Eighty nine compounds accounting for between 98.5 and 99.4% of the total essential oil were identified. The phenylpropanoids eugenol (89.37 ± 0.29%) and eugenol (56.34 ± 0.41%), followed by eugenol acetate (19.48 ± 0.13%) were, respectively, the main compounds in clove and cinnamon essential oils, whereas large amounts of the oxygenated monoterpenes 1,8-cineole (58.07 ± 0.83%) and ¿-terpinyl acetate (13.05 ± 0.44%) were found in bay leaf essential …
Modificazioni germinali del patrimonio genetico e biodiritto. I paradossi della de-differenziazione tra bioetica e biodiritto
2021
Il presente lavoro, incominciato nel novembre del 2017, è partito con l'ambizione di ricostruire la risposta che il sistema giuridico fornisce innanzi alle nuove tecniche di ingegneria genetica che, a fronte della loro applicabilità sugli esseri umani, hanno prodotto, negli ultimi anni, il sorgere di nuovi stakeholders e, ancor prima, di nuovi interessi meritevoli di tutela. Se fino a qualche anno fa pareva impensabile modificare il genoma umano e, men che meno, farlo in maniera precisa, efficiente ed economica, oggi grazie al sistema di modificazione genetica CRISPR/Cas9 è possibile, intervenendo sulla linea germinale degli embrioni umani, prevenire la contrazione di odiose malattie geneti…
Eugen Alt † 17./29. April 1891: Erinnerungsblätter für seine Freunde
1891
Gotiskajā šriftā
HPTLC and GC-MS for separation and identification of eugenol in plants
2007
Samples of clove, nutmeg, and cinnamon have been extracted by maceration with ethanol for 24 h and with aqueous ethanol 48 h. Rhizomes of herb bennet ( Geum urbanum ) and calamus ( Aconum calamus ) and roots of valerian ( Valeriana officinalis ) have been subjected to aqueous hydrolysis then extraction with dichloromethane. The active principles from the samples were separated on silica gel HPTLC plates, with pure (standard) and dental (pharmaceutical) eugenol, using n -heptane-ethyl acetate 60+40 ( v / v ) as mobile phase. After development the components were visualized in UV light at λ = 254 nm. The presence of eugenol was confirmed by GC-MS.
Jürgen Habermas and the risk of liberal eugenics for the ethical self-understanding of species
2016
El artículo analiza el problema de la naturaleza humana que presenta Jürgen Habermas en su obra El futuro de la naturaleza humana, ¿Hacia una eugenesia liberal? Los vertiginosos avances biotecnológicos reclaman una rigurosa reflexión bioética que el filósofo alemán afronta superponiendo a su ética del discurso una ética de la especie. Habermas esboza un modelo de naturaleza humana construido sobre preceptos como la dignidad humana y de la vida humana, la simetría de las relaciones intersubjetivas y, a resultas de estas, la autocomprensión ética de la especie. Respecto a la eugenesia liberal, el autor se posiciona criticando la eugenesia positiva y amparando la negativa, para lo que basa su …
Comparative cytotoxic study of silica materials functionalised with essential oil components in HepG2 cells
2020
[EN] This work evaluated the cytotoxic effect of different EOCs-functionalised silica particle types. The in vitro toxicity of eugenol and vanillin-immobilised SAS, MCM-41 microparticles and MCM-41 nanoparticles was evaluated on HepG2 cells, and compared to free EOCs and pristine materials. The results revealed that free essential oil components and bare silica had a mild cytotoxic effect on HepG2 cells. However, the comparative study showed that free eugenol and vanillin had a milder cytotoxic effect than the equivalent concentrations of immobilised components on the different silica particles, while differences in cell viability between the bare and functionalised particles relied on the …
HEREDITARIANISM, EUGENICS, AND AMERICAN SOCIAL SCIENCE IN THE INTERWAR YEARS: MEET THE CARVERIANS
2022
Like other Progressive Era reformers, Thomas Nixon Carver promoted a form of biology-infused social science that included both eugenics and a strong version of hereditarianism. Carver was also a charismatic teacher who trained several generations of economists and sociologists at Harvard. In this paper we will focus on the contribution of three of them: James A. Field, Norman E. Himes, and Carl S. Joslyn. These authors differ in terms of style, method, and emphasis—with Field and Himes more interested in population and birth control issues, and Joslyn in the dynamics of social stratification. As it will be shown below, however, all of them reveal an explicit commitment to hereditarianism an…