Search results for "dona"
showing 10 items of 533 documents
Substituent effects in trans-p,p'-disubstituted azobenzenes: X-ray structures at 100 K and DFT-calculated structures.
2014
The crystal and molecular structures of twopara-substituted azobenzenes with π-electron-donating –NEt2and π-electron-withdrawing –COOEt groups are reported, along with the effects of the substituents on the aromaticity of the benzene ring. The deformation of the aromatic ring around the –NEt2group inN,N,N′,N′-tetraethyl-4,4′-(diazenediyl)dianiline, C20H28N4, (I), may be caused by steric hindrance and the π-electron-donating effects of the amine group. In this structure, one of the amine N atoms demonstrates clearsp2-hybridization and the other is slightly shifted from the plane of the surrounding atoms. The molecule of the second azobenzene, diethyl 4,4′-(diazenediyl)dibenzoate, C18H18N2O4,…
Interspecific aggression and character displacement in the damselfly Calopteryx splendens
2004
Problems in species recognition are thought to affect the evolution of secondary sexual characters mainly through avoidance of maladaptive hybridization. Another, but much less studied avenue for the evolution of sexual characters due to species recognition problems is through interspecific aggression. In the damselfly, Calopteryx splendens, males have pigmented wing spots as a sexual character. Large-spotted males resemble males of another species, Calopteryx virgo, causing potential problems in species recognition. In this study, we investigate whether there is character displacement in wing spot size and whether interspecific aggression could cause this pattern. We found first that wing …
Hybridization in Calopteryx damselflies: the role of males
2008
Females are often considered responsible for hybridization between two species because usually they are the choosier sex and their cooperation is needed for successful copulation. However, males can also be responsible for hybridization, for example in species in which males are able to force copulation. We studied the pattern of hybridization in two congeneric damselfly species, Calopteryx splendens and Calopteryx virgo, and provide evidence that F1 hybrids between the two damselfly species occur in the wild. According to mitochondrial DNA analysis, hybridization is reciprocal: five of seven hybrids were sired by C. splendens and two by C. virgo males. We conducted an experiment that revea…
"Belye lilii" : genezis finskogo mifa v bolgarii, rol' russkogo fennofil'stva, finsko-bolgarskie kontakty i posredniki s konca XIX do konca XX veka
2004
Liilia Siibergin väitöstyössä osoitetaan, miten suomalaisista on kirjallisuuden kautta Bulgariassa tullut sankareita, joita kohtaan tunnetaan erityistä sympatiaa. Samalla suomalaisista sinkoutuu pois kaikki, mikä voisi viitata epätäydellisyyteen. – Emme enää voi puhua stereotypiasta, vaan kyseessä on kansallismyytti, Siiberg toteaa. Bulgarialaisilla ei kuitenkaan ole erityisasemaa suomalaisten mielissä. Väitöskirjassa tarkastellaan Suomen ja Bulgarian välisten kulttuuri- ja kirjallisuussuhteiden syntymistä ja kehitystä sekä tutkitaan kanssakäymisen erityispiirteitä vertailevan kirjallisuustieteen ja kulttuurintutkimuksen näkökulmasta. Siibergin esittämä malli Suomen kansallismyytin syntymis…
La gratuità del divino e la contingenza del mondo fra weak theology e teodicea
2016
As the relationship between God's gratuitousness and the contingecy of the world is concerned, Leibnizian modern theodicy and weak theology seem to radically contradict each other. Nevertheless, both perspectives are able to preserve the simultaneous presence of gratuity and unconditioned givenness of theophany together with the contingency of reality in its heteronomy from the rules of the creationist order, since it is also determined by fortuity. In this way both positions are much more closer than waht they might seem at a first sight.
Letter on the election of Ernesto Foldats as a member of The Linnean Society of London
1993
Letter on the election of Ernesto Foldats as a member of The Linnean Society of London, stating that, subject to the conditions, Ernesto Foldat must attend a meeting of the society for official admission within six months of the election, but an extension is possible. A member is not entitled to vote at any meeting of the Society until an official admission has taken place. Letter on 1 page, signature of the executive secretary of the society at the bottom. Stored in the Museum of the University of Latvia Botanical and Mycological collections.
The genus Sympetrum Newmann, 1833 (Odonata Libellulidae)
2020
The genus Sympetrum Newmann, 1833 (Odonata Libellulidae)
Effect of plasma treatment on the properties of Arundo Donax L. leaf fibres and its bio-based epoxy composites: A preliminary study
2016
Abstract A preliminary investigation about the effect of plasma treatment on the properties of natural fibres extracted from the leaf of the giant reed Arundo Donax L. and their compatibility with a bio-based epoxy resin is performed. To this aim, the influence of plasma treatment on the functional groups and on the thermal behaviour of fibre were investigated using Fourier transform infrared spectroscopy and thermogravimetric analysis. Moreover, the mechanical characterization of fibres was performed through fibre tensile tests. Short randomly oriented fibres/bio-based epoxy composites were manufactured by hand lay-up method followed by compression moulding, varying both fibres weight cont…
Algunes consideracions sobre la vila d'Oliva en temps medievals
2008
En 1240 Jaime I concedió a Carroz el término del castillo de Rebollet. Este caballero organizó la colonización del territorio, fruto de la cual, la población cristiana se concentró en tres núcleos: Oliva, la Font d'En Carrós y Rafelcofer. A lo largo del siglo XIII y el primer tercio del siglo XIV Oliva se consolidó como principal asentamiento en el margen derecho del río de Alcoi, y entró a formar parte de la red de viles que vertebraban el País Valenciano de norte a sur. Oliva es básicamente una comunidad de campesinos, aunque se documenta la presencia también de pescadores, artesanos y aun de pequeños mercaderes locales. Son estos mercaderes quienes, junto con los sectores acomodados del …
Woman and translation: geographies, voices, identities
2011
In this article we wanted to reflect any of the numerous intersections that women and translation studies have generated. We have divided it into three parts: Geographies, Voices and Identities.