Search results for "SD"
showing 10 items of 20459 documents
Characterization of the "viable but nonculturable" (VBNC) state in the wine spoilage yeast Brettanomyces.
2012
Although the viable but not culturable (VBNC) state has been studied in detail in bacteria, it has been suggested that maintenance of viability with loss of culturability also exists in eukaryotic cells, such as in the wine spoilage yeast Brettanomyces. To provide conclusive evidence for the existence of a VBNC state in this yeast, we investigated its capacity to become viable and nonculturable after sulfite stress, and its ability to recover culturability after stressor removal. Sulfite addition induced loss of culturability but maintenance of viability. Increasing the medium pH to decrease the concentration of toxic SO(2) allowed yeast cells to become culturable again, thus demonstrating …
A model of degassing for Stromboli volcano
2010
International audience; A better understanding of degassing processes at open-vent basaltic volcanoes requires collection of new datasets of H2O–CO2–SO2 volcanic gas plume compositions, which acquisition has long been hampered by technical limitations. Here, we use the MultiGAS technique to provide the best-documented record of gas plume discharges from Stromboli volcano to date. We show that Stromboli's gases are dominated by H2O (48–98 mol%; mean, 80%), and by CO2 (2–50 mol%; mean, 17%) and SO2 (0.2–14 mol%; mean, 3%). The significant temporal variability in our dataset reflects the dynamic nature of degassing process during Strombolian activity; which we explore by interpreting our gas m…
Anticipatory Postural Adjustments and kinematic arm features when postural stability is manipulated
2018
International audience; Beyond the classical paradigm that presents the Anticipatory Postural Adjustments (APAs) as a manner to create forces that counteract disturbances arising from the moving segment during a pointing task, there is a controversial discussion about the role APAs to facilitate the movement and perform a task accurately. In addition, arm kinematics features are classically used to infer the content of motor planning for the execution and the control of arm movements, The present study aimed to disentangle the conflicting role of APAs during an arm-pointing task in which the subjects reach a central diode that suddenly turns on, while their postural stability was manipulate…
Bērnu vēlēšanu tiesību ierobežojums vecuma cenza ietvaros
2020
Bakalaura darba mērķis ir izpētīt bērnu vēlēšanu tiesības, kuru realizācija vecuma cenza ietvaros ir liegta bērniem. Darbā apskatīts vēlēšanu tiesību ierobežojums bērniem vecuma cenza ietvaros un nepieciešamība pēc tā izmaiņām. Lai labāk izprastu šī ierobežojuma pamatotību, nepieciešamību pēc tā izmaiņām, pretargumentus tā pamatotībai, pētīta dažādu tiesu prakse, juridiskās prakses materiāli, dažādu valstu vēlēšanu tiesību sistēmas, politologu un juristu veiktie pētījumi, darba autora izveidotā aptauja. Rezultāti liecina, ka vēlēšanu tiesību ierobežojums bērniem tādā veidā, kādā tas ir uz darba uzrakstīšanas brīdi, mūsdienās ir novecojis, nav pamatots un neatbilst faktiskai situācijai un uz…
Sabīnes Košeļevas personības un stāstu krājuma "Vientulības ministrija" apguve literatūras mācību stundās 11. klasē
2020
Diplomdarba “Sabīnes Košeļevas personības un stāstu krājuma “Vientulības ministrija” apguve literatūras mācību stundās 11. klasē” mērķis ir izstrādāt metodiskās sistēmas variantu, kas 11. klasē palīdzētu apgūt jaunās autores Sabīnes Košeļevas personību un stāstu krājumu, kas veicinātu izpratni par cilvēku savstarpējām attiecībām un dažādu faktoru ietekmi uz tām. Darba saturu veido ievads, piecas nodaļas ar apakšnodaļām, secinājumi un pielikumi. Pirmajā nodaļā apskatīta literatūras mācību priekšmeta specifika un vērtīborientācijas veidošana mācību procesā. Otrajā nodaļā izzināta Sabīnes Košeļevas personība un daiļrade. Trešajā nodaļā aprakstīta skolotājas sagatavošanās darbam ar skolēniem, t…
Dyvalocca : un projet pour l'étude des nuages bas de saison sèche sur la façade atlantique de l'Afrique centrale et de leur impact bioclimatique sur …
2020
Low-level clouds are key components of the climate but are not well represented in weather and climate models. Recently it has been shown that an extensive low-level cloud cover develops during the June-September main dry season in western equatorial Africa, from the coastal plains of Gabon and Congo-Brazzaville to the inland plateaus downstream of the low-mountain crests. Such a cloudy main dry season is unique in the moist Tropics and is likely to explain the presence of the densest and evergreen forests of Central Africa as evapotranspiration is low and the quality of light is high. The ANR-DFG funded “DYVALOCCA” project will conduct from 2020 to 2022 a field campaign, raise existing in-…
On the convergence of zero-point vibrational corrections to nuclear shieldings and shielding anisotropies towards the complete basis set limit in wat…
2016
The method and basis set dependence of zero-point vibrational corrections (ZPVCs) to nuclear magnetic resonance shielding constants and anisotropies has been investigated using water as a test system. A systematic comparison has been made using the Hartree–Fock, second-order Møller–Plesset perturbation theory (MP2), coupled cluster singles and doubles (CCSD), coupled cluster singles and doubles with perturbative triples corrections (CCSD(T)) and Kohn–Sham density functional theory with the B3LYP exchange-correlation functional methods in combination with the second-order vibrational perturbation theory (VPT2) approach for the vibrational corrections. As basis sets, the correlation consisten…
Atmospheric circulation modulates the spatial variability of temperature in the Atlantic-Arctic region
2019
International audience; The Arctic region has experienced significant warming during the past two decades with major implications on the cryosphere. The causes of Arctic amplification are still an open question within the scientific community, attracting recent interest. The goal of this study is to quantify the contribution of atmospheric circulation on temperature variability in the Atlantic–Arctic region at decadal to intra‐annual timescales from 1951 to 2014. Daily 20th Century reanalyses geopotential height anomalies at 500 hPa were clustered into different weather regimes to assess their contribution to observed temperature variability. The results show that in winter, 25% of the warm…
Effect of soil management and weed controlm on the diversity and establishment of arbuscular mycorrhizal symbiosis colonisation in Mediterranean clim…
2006
International audience
Pleasure or health: Do children have to choose?
2017
International audience; Pleasure from eating is known to be a strong predictor of children’s food choices. Yet, children’s food preferences generally do not align with dietary recommendations, children rate energy-dense foods as the most liked and vegetables the least liked. In order to incite children to adopt a healthy diet, parents, caregivers, and national campaigns put forward nutritional arguments. However, there is limited research regarding the impact of the level of nutritional concern on children’s food choices, especially compared to pleasure-oriented goals. This talk is an overview of the research work I have conducted during my PhD, and explores the relationships between childr…