Search results for "40"
showing 10 items of 17345 documents
Binding abilities of polyaminocyclodextrins: polarimetric investigations and biological assays.
2017
Three polyaminocyclodextrin materials, obtained by direct reaction between heptakis(6-deoxy-6-iodo)-β-cyclodextrin and the proper linear polyamines, were investigated for their binding properties, in order to assess their potential applications in biological systems, such as vectors for simultaneous drug and gene cellular uptake or alternatively for the protection of macromolecules. In particular, we exploited polarimetry to test their interaction with some model p-nitroaniline derivatives, chosen as probe guests. The data obtained indicate that binding inside the host cavity is mainly affected by interplay between Coulomb interactions and conformational restraints. Moreover, simultaneous i…
The interactive effects of various nitrogen fertiliser formulations applied to urine patches on nitrous oxide emissions in grassland
2017
AbstractPasture-based livestock agriculture is a major source of greenhouse gas (GHG) nitrous oxide (N2O). Although a body of research is available on the effect of urine patch N or fertiliser N on N2O emissions, limited data is available on the effect of fertiliser N applied to patches of urinary N, which can cover up to a fifth of the yearly grazed area. This study investigated whether the sum of N2O emissions from urine and a range of N fertilisers, calcium ammonium nitrate (CAN) or urea ± urease inhibitor ± nitrification inhibitor, applied alone (disaggregated and re-aggregated) approximated the N2O emission of urine and fertiliser N applied together (aggregated). Application of fertili…
Vibrational Spectrum of HXeSH revisited : Combined computational and experimental study
2020
Vibrational spectrum of HXeSH embedded in low-temperature matrix is experimentally studied. To support the spectrum interpretation, anharmonic vibrational analysis is performed using different models and basis sets and the data is compared with previous experimental and theoretical analyses. Computations of overtones and combination modes allowed for new band assignments. The HXeSH molecule exhibits high anharmonicity similarly as other molecules from the noble-gas hydride family. Comparison of the employed computational methods shows once again that the modelling of the noble-gas compounds faces theoretical challenges to yield quantitatively reliable results. peerReviewed
Computational Structures and SAPT Interaction Energies of HXeSH···H2Y (Y=O or S) Complexes
2018
Ab initio calculations of the structures, vibrational spectra and supermolecular and symmetry-adapted perturbation theory (SAPT) interaction energies of the HXeOH and HXeSH complexes with H2O and H2S molecules are presented. Two minima already reported in the literature were reproduced and ten new ones were found together with some transition states. All complexes show blue shift in Xe&ndash
Generalized Noise Study of Solid-State Nanopores at Low Frequencies.
2017
Nanopore technology has been extensively investigated for analysis of biomolecules, and a success story in this field concerns DNA sequencing using a nanopore chip featuring an array of hundreds of biological nanopores (BioNs). Solid-state nanopores (SSNs) have been explored to attain longer lifetime and higher integration density than what BioNs can offer, but SSNs are generally considered to generate higher noise whose origin remains to be confirmed. Here, we systematically study low-frequency (including thermal and flicker) noise characteristics of SSNs measuring 7 to 200 nm in diameter drilled through a 20-nm-thick SiNx membrane by focused ion milling. Both bulk and surface ionic curren…
Costrutti con 'c'è' e nome proprio in una telecronaca sportiva: configurazioni funzionali e valori testuali
2010
Lajianalyysi 400 m aitajuoksusta ja valmennuksen ohjelmointi
2015
Pitkä aitajuoksumatka 400 m aidat on laji, jossa juostaan yksi aidattu ratakierros yleisurheilukentän juoksuradalla. Lähtö tapahtuu lähtötelineistä. Alkusileä on 45 m pitkä, aitoja on yhteensä 10 kappaletta, aitavälien pituus on 35 m ja loppusileä on 40 m. Biomekaniikka. Hyvässä pikajuoksussa lantio on ylhäällä ja edessä. Jalka painetaan kehon alle päkiä edellä, ja askelkontakti on pyyhkäisevä kuopaisu. Pikajuoksun askel kontakti- ja lentovaiheineen voidaan jakaa neljään osaan: 1) etummaiseen lentovaiheeseen, 2) jarrutusvaiheeseen, 3) työntövaiheeseen ja 4) takimmaiseen lentovaiheeseen. Juoksunopeus on askelpituuden ja askeltiheyden tulo. 400 m aitajuoksussa askelkontakti kestää keskimäärin…
Precise Determination of the Unperturbed 8B Neutrino Spectrum
2012
The measurement was performed at the Kernfysisch Versneller Instituut (KVI) at the University of Groningen, The Netherlands.; A measurement of the final state distribution of the 8B $\beta$ decay, obtained by implanting a 8B beam in a double-sided silicon strip detector, is reported here. The present spectrum is consistent with a recent independent precise measurement performed by our collaboration at the IGISOL facility, Jyvâskylä [O. S. Kirsebom et al., Phys. Rev. C 83, 065802 (2011)]. It shows discrepancies with previously measured spectra, leading to differences in the derived neutrino spectrum. Thanks to a low detection threshold, the neutrino spectrum is for the first time directly ex…
Nutrient sensing: What can we learn from different tastes about the nutrient contents in today's foods?
2019
Abstract Tastes are often described as having a nutrient-signaling function eliciting expectations about the food and its nutrient content. The objectives of this work was to investigate correlations between taste intensity and nutrient content, to evaluate the impact of competing tastes on these relationships, and to know if the content in certain nutrients could be inferred from a combination of tastes. The Food Taste Database (Martin et al., 2014) and a French Food Composition table (ANSES-Ciqual) were used to obtain a dataset combining sensory and nutritional information for 365 foods. Our results confirm the existence of several taste-nutrient relationships previously suggested by othe…
Taikoja ja tenhoa Oxfordissa: raportti Living in a Magical World: Inner Lives -konferenssista ja Spellbound-näyttelystä
2018
Oxfordissa pidettiin 17.–19. syyskuuta kuluvan vuoden merkittävin magian, esoteeristen alojen ja taikauskon tutkimuksen kansainvälinen konferenssi Living in a Magical World: Inner Lives, 1300–1900. Samaan aikaan Oxfordin Ashmolean Museumissa pyörii yhteistyössä konferenssijärjestäjien kanssa kuratoitu näyttely Spellbound. Magic, Ritual, Witchcraft (31.8.2018 – 6.1.2019), jossa on esillä laaja valikoima magian ja taikauskon historiaa keskiajalta 1900-luvulle. Lyhyt reportaasi arvioi sekä konferenssin että näyttelyn antia.