Search results for "rose"

2021

Drosera rotundifolia L. is a carnivorous plant used in traditional medicine for its therapeutic properties. Because of its small size, its collection in nature is laborious and different cultivation methods have been studied to ensure availability. However, only a few studies exist where the lab-grown sundew tissue and field-grown sundew would have been compared in their functionality or metabolic profiles. In this study, the antioxidant and antiviral activities of lab-grown and field-grown sundew extracts and their metabolic profiles are examined. The effect of drying methods on the chromatographic profile of the extracts is also shown. Antioxidant activity was significantly higher (5–6 ti…

First report of brown rot and wilt of fennel caused by Phytophthora megasperma in Italy

2019

Fennel (Foeniculum vulgare Mill. var. azoricum (Mill.) Thell.) in the Apiaceae family is native to southern Europe and southwestern Asia. It is an economically important crop in Italy that produces approximately 85% of all fennel worldwide. The main producing regions are Apulia, Campania, Latium, and Calabria. During the late winter of 2004 in the Crotone Province of the Calabria Region, following heavy rains, patches of fennel plants with symptoms of brown, soft rot of the bulb-like structure formed by the thickened leaf bases, development of yellow leaves, stunting, and wilting of the entire plant were observed in fields. A homothallic Phytophthora sp. was isolated consistently from the …

Investigating the Impact of Radiation-Induced Soft Errors on the Reliability of Approximate Computing Systems

2020

International audience; Approximate Computing (AxC) is a well-known paradigm able to reduce the computational and power overheads of a multitude of applications, at the cost of a decreased accuracy. Convolutional Neural Networks (CNNs) have proven to be particularly suited for AxC because of their inherent resilience to errors. However, the implementation of AxC techniques may affect the intrinsic resilience of the application to errors induced by Single Events in a harsh environment. This work introduces an experimental study of the impact of neutron irradiation on approximate computing techniques applied on the data representation of a CNN.

Photocatalytic formation of H2 and value-added chemicals in aqueous glucose (Pt)-TiO2 suspension

2016

Abstract Commercial and home prepared bare and Pt-supported TiO2 samples were used as the photocatalysts for the aqueous photo-conversion of glucose at ambient pressure and temperature. Aerobic and anaerobic conditions were used to study the products of glucose degradation both in the liquid (arabinose, erythrose, gluconic acid, glucaric acid, fructose and formic acid) and gaseous (H2 and CO2) phases. The distribution of these molecules was different in the presence of the various powders, depending on the structural and physico-chemical properties of the materials, and Pt resulted essential for the anaerobic production of H2. The home prepared samples resulted more active than the commerci…

Influence of nitrogen and carbon sources on the production of ochratoxin A by ochratoxigenic strains of Aspergillus spp. isolated from grapes.

2008

This work studies the influence of nitrogen and carbon source on ochratoxin A production by three Aspergillus isolates A. ochraceus (Aso2), A. carbonarius (Ac25) and A. tubingensis (Bo66), all isolated from grapes. A basal medium (0.01 g/l FeSO4.7H2O, 0.5 g/l MgSO4.7H2O, 0.5 g/l Na2HPO4.2H2O, 1.0 g/l KCl) was prepared. This medium was supplemented with different nitrogen sources, both inorganic [(NH4)3PO(4), 0.3 g/l plus NH4NO3, 0.2 g/l] and organic (histidine, proline, arginine, phenylalanine, tryptophan or tyrosine) at two concentrations (0.05 g/l or 0.3 g/l), and different carbon sources (sucrose, glucose, maltose, arabinose or fructose) at three concentrations (10 g/l, 50 g/l or 150 g/l…

Vaghezze e stravaganze para-letterarie nella critica d’arte anglo-americana. L’art-writing nel secondo Novecento da strategia retorica a genere auton…

2019

Vagueness and para-literary extravagance in the Anglo-American art criticism. Art-writing in the second half of the twentieth century from a rhetorical strategy to an autonomous genre · The essay offers an analysis of the transformations that occurred due to the dynamic artistic debate in the United States in the second half of the 20th century, when art-writing and art criticism were constantly subject to redefinition with regard to an object – the artwork – which was gradually becoming undetermined. Retracing the evolution of the reflections on art criticism, the paper shows how it progressively tended towards a form of autonomous narrative taking the steps from art – employing vagueness …

Highly Performant, Deep Neural Networks with sub-microsecond latency on FPGAs for Trigger Applications

2020

Artificial neural networks are becoming a standard tool for data analysis, but their potential remains yet to be widely used for hardware-level trigger applications. Nowadays, high-end FPGAs, often used in low-level hardware triggers, offer theoretically enough performance to include networks of considerable size. This makes it very promising and rewarding to optimize a neural network implementation for FPGAs in the trigger context. Here an optimized neural network implementation framework is presented, which typically reaches 90 to 100% computational efficiency, requires few extra FPGA resources for data flow and controlling, and allows latencies in the order of 10s to few 100s of nanoseco…

Forms and functions of Hundertwasser's writings

2018

The research focuses on the abundant writing of Hundertwasser and its place in the positioning of this actor of artistic renewal. He is recognized for his singular "work-life", since, aiming to upset society, he has expanded his field, from painting to ecology, via architecture. Starting from the geohistorical context, from the pictorial background of the beginning of the 20th century, the theories of 20th-century German scientists and "prophets" and the emergence of environmental movements, it is a question of studying the many poems, stories, speeches, manifestos, interventions in the media and comments, where Hundertwasser exposes and develops his convictions. The aim is to show that the…

Muovipakkaukset, ne on niin syntisiä : tutkimus kuluttajien elintarvikepakkauksista kokemasta arvosta osto- ja käyttöprosessin vaiheissa

2010

Tutkimuksen tavoitteena on tuottaa ymmärrystä elintarvikepakkauksen roolista kuluttajan kokeman arvon muodostumisessa kussakin osto- ja käyttöprosessin vaiheessa. Tutkimus selvittää myös, millaisia ominaisuuksia kuluttajat pitävät tärkeinä elintarvikepakkauksissa prosessin kuluessa. Tutkielman aineisto kerättiin kvalitatiivisesti narratiivisen tutkimuksen ja teemahaastattelun yhdistelmällä 12 keskustelutilanteessa, ja se analysoitiin rakenneanalyysin avulla. Aineistosta käy ilmi, että kuluttajien kokema arvo elintarvikepakkauksista vaihtelee huomattavasti prosessin aikana, mutta arvon kokeminen on usein alitajuista eivätkä kuluttajat tiedosta pakkauksen merkitystä. Ennen ostoa ja ostohetkel…

Philae's first days on the comet

2015

On 12 November 2014, Philae landed on the surface of comet 67P/Churyumov-Gerasimenko (67P), making an almost 30-year dream a reality. The pioneering flybys of 1P/Halley in 1986 revealed that despite being made primarily of ice, it was covered in highly absorbing carbonrich molecules. What is their composition? When did they form, and through which chemical routes? Might they have constituted prebiotic molecules necessary for life? At a larger scale, what can one learn from comets that has relevance to the evolution of the solar system and planets? ![Figure][1] 12 NOVEMBER 2014: PHILAE LANDED ON THE NUCLEUS OF COMET 67P CREDIT: ESA/ROSETTA/MPS FOR OSIRIS TEAM MPS/UPD/LAM/IAA/SSO/INTA/UPM/DAS…