Search results for "RPA"
showing 10 items of 609 documents
Magnetite Nanoparticles Prepared By Spark Erosion
2016
Abstract In the present research, we study a possibility of using the electric spark erosion method as an alternative to the method of chemical co-precipitation for preparation of magnetic nanoparticles. Initiation of high frequency electric discharge between coarse iron particles under a layer of distilled water allows obtaining pure magnetite nanoparticles.
Factors influencing serum 25-hydroxivitamin D levels and other bone metabolism parameters in healthy older women
2016
Objective: Older women have frequently low serum 25-hydroxivitamin D (25[OH]D) concentrations, high parathormone (PTH) levels and low bone mineral density (BMD) values. Endogenous synthesis, dietary habits, sunlight exposure and fat-mass-mediated storage may influence 25(OH)D levels and bone metabolism, but the relevance of these factors in the elderly has yet to be fully elucidated. We aimed to investigate the influence of dietary vitamin D intake and fat mass on serum 25(OH)D levels and bone metabolism in older women. Design: Cross-sectional. Setting: Community. Participants: 218 fit older women attending a biweekly mild fitness program. Measurements: Dietary habits was investigated throu…
The TRPA1 Channel in the Cardiovascular System: Promising Features and Challenges.
2019
The transient receptor potential ankyrin 1 (TRPA1) channel is a calcium-permeable nonselective cation channel in the plasma membrane that belongs to the transient receptor potential (TRP) channel superfamily. Recent studies have suggested that the TRPA1 channel plays an essential role in the development and progression of several cardiovascular conditions, such as atherosclerosis, heart failure, myocardial ischemia–reperfusion injury, myocardial fibrosis, arrhythmia, vasodilation, and hypertension. Activation of the TRPA1 channel has a protective effect against the development of atherosclerosis. Furthermore, TRPA1 channel activation elicits peripheral vasodilation and induces a biphasic bl…
Denboratik kausara: -nez gero kausazko lokailuaren garapenaz
2019
LABURPENA Lan honetan -nez gero atzizki multzoaren garapena dugu aztergai, lehen testuetatik hasi eta gaurdaino. Denbora lokailuetatik sortu diren beste kausazko lokailu asko bezala, -nez gero batez ere mintza-ekintzak eta antzekoak justifikatzeko erabiltzen da. Hala ere, kausa neutroagoak adierazteko ere erabiltzen da. Gaztelaniaz ez bezala, menpeko perpausaren kokagunea ez da aldatu azken mendeotan eta funtzio informatiboan ere ez dugu aldakuntza handirik ikusten. Sumatzen dugun garapen nagusia da beharbada edukizko kausazko neutroetan maizago erabiltzeko joera. Oro har, -nez gero kausazko menderagailuak, gazt. ya que-rekin baino, antz handiagoa du fr. puisque eta ing. since lokailuekin. …
Probabilistic cross-validation estimators for Gaussian process regression
2018
Gaussian Processes (GPs) are state-of-the-art tools for regression. Inference of GP hyperparameters is typically done by maximizing the marginal log-likelihood (ML). If the data truly follows the GP model, using the ML approach is optimal and computationally efficient. Unfortunately very often this is not case and suboptimal results are obtained in terms of prediction error. Alternative procedures such as cross-validation (CV) schemes are often employed instead, but they usually incur in high computational costs. We propose a probabilistic version of CV (PCV) based on two different model pieces in order to reduce the dependence on a specific model choice. PCV presents the benefits from both…
Evidence for the production of three massive vector bosons with the ATLAS detector
2019
A search for the production of three massive vector bosons in proton–proton collisions is performed using data at TeV recorded with the ATLAS detector at the Large Hadron Collider in the years 2015–2017, corresponding to an integrated luminosity of 79.8 fb−1. Events with two same-sign leptons ℓ (electrons or muons) and at least two reconstructed jets are selected to search for . Events with three leptons without any same-flavour opposite-sign lepton pairs are used to search for , while events with three leptons and at least one same-flavour opposite-sign lepton pair and one or more reconstructed jets are used to search for . Finally, events with four leptons are analysed to search for and .…
Constraints on off-shell Higgs boson production and the Higgs boson total width in ZZ → 4ℓ and ZZ → 2ℓ2ν final states with the ATLAS detector
2018
A measurement of off-shell Higgs boson production in the and decay channels, where ℓ stands for either an electron or a muon, is performed using data from proton–proton collisions at a centre-of-mass energy of TeV. The data were collected by the ATLAS experiment in 2015 and 2016 at the Large Hadron Collider, and they correspond to an integrated luminosity of . An observed (expected) upper limit on the off-shell Higgs signal strength, defined as the event yield normalised to the Standard Model prediction, of 3.8 (3.4) is obtained at 95% confidence level (CL). Assuming the ratio of the Higgs boson couplings to the Standard Model predictions is independent of the momentum transfer of the Higgs…
La Sala Parpalló en el Centre Cultural La Beneficència (1995-1999)
2020
During the period 1995-1999, the Sala Parpalló was located in the Beneficència Cultural Center of Valencia, sharing the place with the spaces of the Museum of Prehistory, the Museum of Ethnology and the IVEI. In the investigation it exposed a technical file for each of the 57 self-produced exhibitions carried out in the period and a selection of the studies that accompanied them: the files are displayed chronologically according to the procedures used. The work concludes with the analysis of the objectives that were mainly all the programming: 1) Sala Parpalló as an integrated project; 2) Studies and exhibitions around the Valencian Cultural Imaginary; 3) Analysis of the postmodern crisis; …
Effect of mycorrhizal inoculation on metal accumulation by poplar leaves at phytomanaged sites
2017
Abstract Phytotechnologies for the management of lands contaminated with potentially toxic elements (PTEs) are considered as gentle alternatives to conventional remediation techniques. During the last few years, phytotechnologies have progressively shifted to phytomanagement, a concept that includes the valorization of the plant biomass produced on the contaminated site. This study aimed at evaluating the mid-term effect of ecto- and endomycorrhizal inoculation on the reduction of PTE mobility in soils and foliar accumulation by two poplar clones, Skado ( Populus trichocarpa x P. maximowiczii ) and I-214 ( P. deltoides x P. nigra ), dedicated to bioenergy purposes. The effects of inoculatio…
Latviešu tautas tērpu brunču ritmi vizuālās mākslas apguvē 5. klasē
2018
Darba autore piedāvā izmantot latviešu tautas tērpa brunču ritmus vizuālās mākslas apguvei 5.klasē. Šim nolūkam izstrādāta 4 uzdevumu kopa 7 mācību stundām. Lai izveidotu šo uzdevumu kopu, autore apkopoja teorētisko literatūru par latviešu tautastērpa brunču līniju un krāsu ritmiem un to atšķirībām dažādos novados, pētīja pusaudžu vecumposma īpatnības un pedagoģiskos priekšnosacījumus mācību satura izveidei, veica pedagoģiskā izmēģinājuma darbību skolā, apkopoja skolēnu darbu rezultātus, veica to analīzi un izdarīja secinājumus. Nacionālā identitāte un interese par tradicionālo kultūru ir nozīmīgs faktors spēcīgas, inteliģentas personības veidošanā, un agrīnajā pusaudžu vecumposmā praktiska…