Search results for "Eugen"
showing 10 items of 115 documents
Risk management of ochratoxigenic fungi and ochratoxin A in maize grains by bioactive EVOH films containing individual components of some essential o…
2018
Abstract Aspergillus steynii and Aspergillus tubingensis are possibly the main ochratoxin A (OTA) producing species in Aspergillus section Circumdati and section Nigri, respectively. OTA is a potent nephrotoxic, teratogenic, embryotoxic, genotoxic, neurotoxic, carcinogenic and immunosuppressive compound being cereals the first source of OTA in the diet. In this study bioactive ethylene-vinyl alcohol copolymer (EVOH) films containing cinnamaldehyde (CINHO), linalool (LIN), isoeugenol (IEG) or citral (CIT) which are major components of some plant essential oils (EOs) were produced and tested against A. steynii and A. tubingensis growth and OTA production in partly milled maize grains. Due to …
Volatile constituents of Stachys palaestina L. (Palestine woundwort) growing in Lebanon
2014
The hydrodistillation of the aerial parts of Stachys palaestina L. collected in Lebanon in the Kadisha Valley, yielded 0.1% (w/w) of essential oil. GC and GC-MS analyses enabled the identification of 87 compounds representing 90.8% of the total oil. Hexadecanoic acid (10%), hexahydrofarnesyl acetone (6.9%), eugenol (4.3%) and (E)-caryophyllene (4.3%) were the main components. On the whole, the oil was constituted mainly of sesquiterpenes (37.7%), among which sesquiterpene hydrocarbons (20.7%) slightly prevailed over oxygenated sesquiterpenes (17.0%). This is the first report on the chemical composition of S. palaestina essential oil.
Temperature effects on anaesthesia with clove oil in six temperate-zone fishes
2004
The potential use of clove oil (eugenol) as an anaesthetic for Atlantic salmon Salmo salar, brown trout Salmo trutta, rainbow trout Oncohynchus mykiss, whitefish Coregonus lavaretus, perch Perca fluviatilis and roach Rutilus rutilus was examined at 5, 10, 15 and 20°C using three anaesthetic concentrations (varying from 20 to 200 mg l -1 ) at each temperature. Substantial species differences in sensitivity to clove oil were observed, even amongst congeners, and there may be some disadvantages (slow recovery and possibly mortality) with using clove oil for 0+ year whitefish and at low temperatures for perch and roach.
Effects of Natural Products on Contact Dermatitis
2005
Some medicinal plants, which are known to produce allergic reactions, are also specifically used as anti- inflammatory agents. Among the more relevant plants, we report species with cinnamaldehyde, cinnamic alcohol, geraniol, hydroxycitronellal, eugenol and isoeugenol are all potential allergens. In addition, fragrances, which are mixtures of small-molecul ar-weight compounds, may induce allergic contact dermatitis due to fragrance-spe cific CD4 + and CD8 + T lymphocytes. Plants from the Asteraceae family used in folk medicine as anti-inflamma tories can cause allergic contact dermatitis because of its content in sesquiterpene lactones, which have been reported as the anti- inflammatory pri…
AMPLIFICANDO TÉCNICAMENTE LA VIRTUD - UTOPÍA Y MORAL ENHANCEMENT
2017
En este artículo analizo el proyecto de perfeccionar moralmente al ser humano por mediode la eugenesia desde el ángulo brindado por la utopía. Ello nos permitirá conectar lostrabajos de la actual Moral Enhancement con obras literarias y teóricas del siglo XIX einicios del XX donde la confianza en el progreso de la ciencia y la tecnología ya alentaba laconvicción de que la humanidad sería mejorada artificialmente a todos los niveles en elfuturo, incluido el nivel moral. La exposición hará hincapié en las diferencias y similitudesexistentes entre los dos paradigmas eugenésicos (el victoriano y el liberal) que dichaconvicción ha originado hasta ahora. También en los impactos negativos que a mi…
Eugenesia y autoría moral. Lectura de una tesis habermasiana
2017
El objetivo de esta comunicación es ahondar en la visión que ha mantenido Jürgen Habermas a propósito de la manipulación genética; en concreto, se pretende abordar críticamente su hipótesis de una pérdida de autoría del sujeto manipulado. A juicio del autor, la intervención genética positiva —aquélla que tiene por objeto la introducción de virtuales mejoras en el sujeto— alcanzaría a violar la conciencia de autoría de dicho sujeto, así como su autocomprensión en tanto agente moral. En este sentido, se pretende investigar críticamente dos aspectos diferentes de la cuestión: en primer lugar, la corrección o no de la tesis habermasiana; en segundo lugar, la pertinencia o no de dicha tesis a la…
Quantification of phenolic acids by partial least squares Fourier-transform infrared (PLS-FTIR) in extracts of medicinal plants.
2020
Introduction Phenolic compounds are ubiquitous compounds found in all plants as their secondary metabolites. Phenols are becoming increasingly important particularly because of their beneficial effects on health. Objective To provide a faithful calibration model for the simultaneous determination and quantification of phenolic acids, as salicylic, vanillic, p-hydroxybenzoic acids, eugenol and thymol in different extracts of medicinal plants, a comparative study was made between two methods of infrared measurements based on attenuated total reflectance (ATR) and transmission. Methods Characteristic absorbance peak heights of mid-infrared spectra of individual phenolic acids were measured for…
Ironia e parodia nel Montale«comico». Lettura di Piove e di Leggendo Kavafis
2022
Il contributo analizza due poesie del tardo Montale, "Piove" (Satura) e "Leggendo Kavafis" (Quaderno di quattro anni), allo scopo di comprendere i procedimenti di riscrittura del poeta genovese. Attraverso gli studi sull'intertestualità (Bachtin, Kristeva, Genette...) è possibile comprendere come Montale si serva di processi di travestimento e trasformazione parodica già in uso nella tradizione, che egli riesce abilmente a rielaborare alla luce della nuova poetica introdotta alla pubblicazione di "Satura" (1971).
EUGENICS BETWEEN SCIENCE AND POLITICS IN LATVIA DURING WORLD WAR II: THE INVESTIGATION FILE OF THE MINISTRY OF STATE SECURITY OF THE LATVIAN SSR IN T…
2021
This study, based on the materials of the 1948 investigation of the Ministry of State Security of the Latvian SSR, traces and analyzes the scientific and administrative activities of Theodor Upners (1898-1992) during the Nazi occupation regime in Latvia. From 1942 until the end of the occupation in 1944, Upners was formally the leading eugenics specialist in Latvia. During this time, in 1942 he visited Germany on a scientific trip, gave a course on eugenics at the University of Riga, and in 1943 published the book «The Role of Eugenics in the Life of the Nation and the State». In the 1948 investigation, he was accused of collaborating with the Nazi occupation authorities and glorifying Nazi…
BETWEEN PROGRESSIVISM AND INSTITUTIONALISM: ALBERT BENEDICT WOLFE ON EUGENICS
2013
Albeit concerned with the biological element in social evolution, Albert B. Wolfe was among the very few economists of the progressive era who openly expressed his concerns about certain implications of eugenic rhetoric for the social science. Specifically, Wolfe questioned the strong hereditary boundaries that more extreme eugenicists suggested about human beings. As I will attempt to show in paper, a careful examination of Wolfe’s writings reveals that his reaction was rooted in the belief that many of the social problems which eugenicists attributed to hereditary limitations, were actually imputable to the influence that the social, economic, and physical environment exercised on the ind…