Browsing Artículos by Title
Now showing items 5669-5688 of 10785
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Kinetics of NH3 Desorption and Diffusion on Pt: Implications for the Ostwald Process.
(American Chemical Society, 2021-10-21)We report accurate time-resolved measurements of NH3 desorption from Pt(111) and Pt(332) and use these results to determine elementary rate constants for desorption from steps, from (111) terrace sites and for diffusion ... -
Kinetics of the Aqueous Phase Copolymerization of MAA and PEGMA Macromonomer: Influence of Monomer Concentration and Side Chain Length of PEGMA
(MDPI, 2017-04-20)An in situ nuclear magnetic resonance spectroscopy (NMR) technique is used to monitor the aqueous-phase copolymerization kinetics of methacrylic acid (MAA) and poly(ethylene glycol) methyl ether methacrylate (PEGMA) ... -
Kinship practices in Early Iron Age South-east Europe: genetic and isotopic analysis of burials from the Dolge njive barrow cemetery, Dolenjska, Slovenia
(Cambridge University Press, 2023-04)The burial of multiple individuals within a single funerary monument invites speculation about the relationships between the deceased: were they chosen on the basis of status, gender or relatedness, for example? Here, the ... -
Kinship practices in the early state El Argar society from Bronze Age Iberia
(Nature, 2022)The Early Bronze Age in Europe is characterized by social and genetic transformations, starting in the early 3rd millennium BCE. New settlement and funerary structures, artifacts and techniques indicate times of change ... -
Kitamura Electrophilic Fluorination Using HF as a Source of Fluorine
(MDPI, 2020-04-30)This review article focused on the innovative procedure for electrophilic fluorination using HF and in situ generation of the required electrophilic species derived from hypervalent iodine compounds. The areas of synthetic ... -
KLaF4:Nd3+ doped transparent glass-ceramics processed by spark plasma sintering
(Elsevier, 2022-02-15)[EN] Transparent oxyfluoride glass-ceramics (GCs) containing KLaF4 nanocrystals (NCs) doped with Nd3+ were prepared by Spark Plasma Sintering (SPS). Glass powder pellets were sintered under a vacuum atmosphere, optimizing ... -
Klein paradox for bosons, wave packets and negative tunnelling times
(Nature, 2020-11-05)We analyse a little known aspect of the Klein paradox. A Klein-Gordon boson appears to be able to cross a supercritical rectangular barrier without being reflected, while spending there a negative amount of time. The ... -
Klimari buruzko negoziazioak, Kyotoko Protokoloa ordezkatuko duen akordio baterako: Kopenhageko porrotetik Parisko Akordiora
(UEU, 2017-11-30)Kyotoko Protokoloa ordezkatuko duen akordio loteslea lortzeko negoziazioak 2007an hasi ziren. 2009ko Kopenhageko Konferentziaren porrotaren ondoren, negoziazioak bertan behera geratu ziren, eta ez zen ia aurrerapenik ... -
Knock-down of phosphoenolpyruvate carboxylase 3 negatively impacts growth, productivity, and responses to salt stress in sorghum (Sorghum bicolor L.)
(Wiley, 2022-07)Phosphoenolpyruvate carboxylase (PEPC) is a carboxylating enzyme with important roles in plant metabolism. Most studies in C-4 plants have focused on photosynthetic PEPC, but less is known about non-photosynthetic PEPC ... -
Knock-on damage in bilayer graphene: Indications for a catalytic pathway
(American Physical Society, 2013-12-05)[EN] We study by high-resolution transmission electron microscopy the structural response of bilayer graphene to electron irradiation with energies below the knock-on damage threshold of graphene. We observe that one type ... -
Knowledge about COVID-19 and vaccine acceptability among priority groups defined for vaccination: A cross-sectional study in Araba/Alava, Spain, before the vaccination against SARS-CoV-2
(Elsevier, 2022-08)Background: The acceptability of COVID-19 vaccine varies depending on the time, place, type of vaccine and information available at the time. Knowledge of attitudes and practices towards COVID-19 among the population at ... -
Knowledge Sharing and Transfer in an Open Innovation Context: Mapping Scientific Evolution
(MDPI, 2020-12-10)The essence of innovation lies in knowledge, which is why open innovation opens the door to knowledge transfer with agents outside the organization. In order to comprehend the joint scientific trajectory of these two areas ... -
Knowledge, preferences of post-explant management and opinions towards reuse of patients with cardiac implantable electronic devices.
(Heart Rhythm Society / Elsevier, 2023-03-28)The high cost of cardiac implantable electronic devices (CIEDs) is the most significant barrier to the lack of treatment in low- and middle-income countries (LMICs). The literature suggests that reusing CIEDs is safe and ... -
Koaderno gorria: aitortza baten bidaia
(Euskaltzaindia, 2012-11-30)[EU] Artikulu honetan Koaderno gorria nobelako pertsonaia literario femeninoak aztertzen dira, eta baita horien artean sorturiko harremansarea ere. Kontuan hartuko ditugun alder-diak honako hauek izango dira: ... -
Kohesio anaforikoa. Adinaren eta testu generoaren araberako azterketa
(Universidad del País Vasco, Euskal Herriko Unibertsitatea, 2003)[EN] The main focus of this paper is the cohesion of the theme. First of all, placing anaphoric cohesion within the theoretical framework developed by Bronckart (1985, 1996), we need to distinguish between cohesion, ... -
Kohesioa ikasleek idatzitako iritzi gutunetan. Zenbait testu aztergai
(Sociedad de Estudios Vascos, Eusko Ikaskuntza, 2005)[EUS]Argudiatzeko orduan izen kohesiorako mekanismoak nola erabiltzen diren aztertzen du lan honek. Horretarako 12 eta 14 urteko ikasleek iritzia emateko idazten dituzten gutunak hartzen dira kontuan, bi alderdi hauei ... -
Komunikazio-antsietatea euskara bigarren hizkuntza dutenengan
(Gobierno de Navarra, 2017-07)Artikulu honetan, Euskal Autonomia Erkidegoan H1 gaztelania duten hiztunen euskararekiko komunikazio-antsietateari buruzko ikerketa bat aurkezten da. Artikuluaren xedea da euskara bigarren hizkuntza duten hiztun helduen ... -
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Korrika, running in collective effervescence through the Basque Country: A model of collective processes and their positive psychological effects
(Frontiers Media, 2023-02)The neo-Durkheimnian model suggests that feedback and emotional communion between participants during a collective gathering (i.e., perceived emotional synchrony: PES) is one of the key mechanisms of collective processes. ... -
Kraft and organosolv lignin-activated carbon composites for supercapacitor electrode materials
(Elsevier, 2024-03)Lignin-activated carbon (AC) composites were employed as electrode active materials to develop more environmentally friendly Supercapacitor (SC) materials with enhanced properties. This way, the hydroquinone/quinone moieties ...