Search results for "Cornu"
showing 10 items of 28 documents
Efficacia dei pronubi sulla produttività del melone d'inverno( Cucumis melo var. inodorus) in coltura protetta.
1998
Energetic coupling between plastids and mitochondria drives CO2 assimilation in diatoms.
2015
International audience; Diatoms are one of the most ecologically successful classes of photosynthetic marine eukaryotes in the contemporary oceans. Over the past 30 million years, they have helped to moderate Earth's climate by absorbing carbon dioxide from the atmosphere, sequestering it via the biological carbon pump and ultimately burying organic carbon in the lithosphere. The proportion of planetary primary production by diatoms in the modern oceans is roughly equivalent to that of terrestrial rainforests. In photosynthesis, the efficient conversion of carbon dioxide into organic matter requires a tight control of the ATP/NADPH ratio which, in other photosynthetic organisms, relies prin…
Exploring the apparent properties and Q-markers for quality control of Cornus officinalis
2023
Cornus officinalis Siebold & Zucc. has a high nutritious value and is widely used in food fields. To distinguish the quality of cornus in different areas, this research provided a new strategy for comprehensively evaluating cornus. As a result, 12 iridoid glycosides and 7 polyphenols were identified and quantified by UHPLC-Q-TOF/MS in 13 batches of samples from five different origins. Chromaticity analysis pointed out that pelargonidin-3-O-galactoside, total iridoids, and total polyphenols performed high relation with 1365*. Antioxidant activity and inhibition of α-glucosidase effect correlated with the chemical analysis suggested that iridoid glycosides and polyphenols should represent…
Fernand de Montessus de Ballore, à la naissance de la sismologie moderne
2012
Fernand de Montessus de Ballore (1851-1923) est considéré comme un des précurseurs de la sismologie moderne. On lui doit une importante production scientifique dans ce domaine : il a notamment établi, par des relevés rigoureux et nombreux, que les tremblements de terre étaient en relation avec la géologie et non avec les phases de la lune ou les volcans souterrains comme on le supposait au début du XXe siècle. Officier de l'armée française, alors en garnison à Nîmes, il écrit en 1886 au scientifique genevois Louis Soret (1827-1890), qui fait partie de la commission suisse chargée d'étudier les séismes dans ce pays. C'est l'analyse de cette lettre à Soret qui fait l'objet de notre article.
De Finnis cornutis
2014
<p><em>Horned Finns</em>. The ‘cornuti Finni’ mentioned in the <em>Historia Norwegiae</em> have not found their explanation, because the Latin word <em>cornu</em>, from which the adjective is derived, has been understood in the strict sense of ‘horn on the head’. The Latin word, however, also means ‘hoof’ of horses or ‘cloven hoof’ of cows and goats, even of the mythologic Faunus and Pan. In December 1913 Kai Donner saw in Dudinka Avam-Samojeds, who because of their cylindrically shaped reindeer winter boots, the front of which was hoof-shaped, were called ‘hoofed men’ (in Finnish ‘kaviolliset miehet’). In the extracts of Aristeas of Proconnesus, wh…
Uterus Transplantation
2018
Uterus transplantation (UTx) has been successfully introduced as a treatment option for women with absolute uterine factor infertility (AUFI). AUFI representing approximately 3% to 5% of the female general population is linked to either congenital uterine agenesis (Mayer-Rokitansky-Küster-Hauser syndrome), major congenital uterine malformation (hypoplastic uterus, fraction of bicornuate/unicornuate uterus), a surgically absent uterus, or an acquired condition (intrauterine adhesions, leiomyoma) linked to uterine malfunction that causes implantation failure or defect placentation. The world's first clinical uterus transplant was performed in 2000. However, a hysterectomy became necessary sho…
Land Snails as a Valuable Source of Fatty Acids: A Multivariate Statistical Approach
2019
The fatty acid (FA) profile of wild Theba pisana, Cornu aspersum, and Eobania vermiculata land snail samples, collected in Sicily (Southern Italy), before and after heat treatment at +100 °C were examined by gas chromatography with a flame ionization detector (GC-FID). The results show a higher content of polyunsaturated fatty acids (PUFAs) in all of the examined raw snails samples, representing up to 48.10% of the total fatty acids contents, followed by monounsaturated fatty acids (MUFAs). The thermal processing of the snail samples examined determined an overall reduction of PUFA levels (8.13%, 7.75%, and 4.62% for T. pisana, C. aspersum and E. vermiculata samples, respectively) and a spe…
Supplementary Ultraviolet-B Radiation Induces a Rapid Reversal of the Diadinoxanthin Cycle in the Strong Light-Exposed DiatomPhaeodactylum tricornutu…
2002
AbstractA treatment of the diatom Phaeodactylum tricornutum with high light (HL) in the visible range led to the conversion of diadinoxanthin (Dd) to diatoxanthin (Dt). In a following treatment with HL plus supplementary ultraviolet (UV)-B, the Dt was rapidly epoxidized to Dd. Photosynthesis of the cells was inhibited under HL + UV-B. This is accounted for by direct damage by UV-B and damage because of the UV-B-induced reversal of the Dd cycle and the associated loss of photoprotection. The reversal of the Dd cycle by UV-B was faster in the presence of dithiothreitol, an inhibitor of the Dd de-epoxidase. Our results imply that the reversal of the Dd cycle by HL + UV-B was caused by an incre…
Factors affecting physiology of mycelial growth and mushrooms aroma production in solid state fermentation
1997
L'effet de différentes sources d'azote et du rapport C/N sur la croissance mycélienne et sur l'intensité aromatique dégagée par trois espèces du genre #Morchella$ et d'une espèce du genre #Pleurotus$ a été étudié sur agar puis sur support solide. Les résultats ont été à la base du choix du nitrate de sodium comme source d'azote, du rapport C/N de 10 ainsi que du mycélium de #M. esculenta$ come source potentielle pour la production de l'arôme de morille. L'identification des molécules contribuant à l'arôme réalisée par CPG-SM a révélé de larges différences entre #M. esculenta$ et #P. cornucopiae$. Dans la mesure où l'arôme produit par le mycélium rappelle celui du carpophore, ce résultat con…
OZOGNATHUS CORNUTUS (LECONTE, 1859) (Coleoptera Anobiidae), NEW RECORD FOR ITALY
2014
Prima segnalazione di Ozognathus cornutus (LeConte, 1859) (Coleoptera Anobiidae) in Italia