Search results for "RVA"
showing 10 items of 11064 documents
'No hay libro, por malo que sea, que no tenga alguna cosa buena': la difusión de las novelle de Sebastiano Erizzo y Niccolò Granucci en la España del…
2019
En este artículo se ofrece un primer panorama acerca de la difusión y repercusión de las novelas de Sebastiano Erizzo y Niccolò Granucci en el Siglo de Oro, en particular de dos de sus obras principales, Le sei giornate (1567) y La piacevol notte et lieto giorno (1574). Las características de los ejemplares localizados y los datos recabados en torno a la circulación de ambas obras por tierras españolas permiten suponer que sus novelas, cuyo carácter moralista probablemente favoreciese su difusión, ejercieron un cierto influjo en la literatura áurea. Esta circunstancia invita a volver los ojos hacia las novelas de Sebastiano Erizzo y Niccolò Granucci, hasta ahora poco atendidas en el ámbito …
Normalitāte un ārkārtējība filosofiskā skatījumā
2022
Collecting and preserving plant DNA for huanglongbing diagnosis in citrus samples from China
2016
Accurate and sensitive detection of Citrus Huanglongbing associated ‘Ca. Liberibacter’species, not currently reported in the European and Mediterranean area, is an imperative need to define certification programs, to prevent introduction of the bacteria and/or their vectors in the unaffected areas, and to delineate efficient management strategies in those areas where the disease has spread. In this study, we compared different citrus sample preparation procedures for PCR based detection methods of ‘Candidatus Liberibacter asiaticus’, in order to find out the best a way to transport and preserve samples of Shatangju mandarin and fingered citron obtained during a survey in citrus orchards in …
Vēsturiskās pilsētas ainavas pieeja kultūras mantojuma saglabāšanai Kuldīgā
2015
Kuldīgas vēsturiskajā centrā kultūras mantojums sastopams visplašākajā tā izpratnē. Jau desmit gadu pašvaldība praktizē plānveidīgas kultūras mantojuma pārvaldības aktivitātes, kas pamanītas un atzinīgi novērtētas ne tikai Latvijā, bet arī starptautiski. Tomēr pilsētvide ir dzīva un mainīga, demonstrējot spēju tapt pielāgotai sabiedrības vajadzībām un kalpot tai. Arī kultūras mantojuma aizsardzībai un saglabāšanai tādai vajadzētu būt – visaptverošai, ar ilgtspējīgu vēsturiskās pilsētvides pārvaldību un integrētai vispārējā pilsētas attīstības ietvarā. Šī pētījuma mērķis ir izstrādāt priekšlikumus Kuldīgas kultūras mantojuma pārvaldības pilnveidošanai, balstoties teorētiskajās atziņās par vē…
Sporta komandas pārvaldības lietotne
2021
Kvalifikācijas darba mērķis ir izstrādāt sporta komandas pārvaldības lietotni, kuru var izmantot gan treneri, gan sportisti, lai atvieglotu darbu ar komandu individuālajos sporta veidos. Lietotne ir paredzēta, lai treneri varētu viegli izveidot treniņus sportistiem, kā arī piefiksēt datus priekš vēstures, lai varētu pēc laika atskatīties uz paveikto. Lietotnes izstrādē tika izmantota ASP.NET MVC Core 3.0 tehnoloģija un ietvari jQuery, Bootstrap, jQueryUI, KnockoutJS, un valodas C#, HTML5, JavaScript, CSS.
Restricted compositions and permutations: from old to new Gray codes
2011
Any Gray code for a set of combinatorial objects defines a total order relation on this set: x is less than y if and only if y occurs after x in the Gray code list. Let @? denote the order relation induced by the classical Gray code for the product set (the natural extension of the Binary Reflected Gray Code to k-ary tuples). The restriction of @? to the set of compositions and bounded compositions gives known Gray codes for those sets. Here we show that @? restricted to the set of bounded compositions of an interval yields still a Gray code. An n-composition of an interval is an n-tuple of integers whose sum lies between two integers; and the set of bounded n-compositions of an interval si…
Tailoring the anomalous Hall effect of SrRuO$_3$ thin films by strain: a first principles study
2021
Motivated by the recently observed unconventional Hall effect in ultra-thin films of ferromagnetic SrRuO$_3$ (SRO) we investigate the effect of strain-induced oxygen octahedral distortion in the electronic structure and anomalous Hall response of the SRO ultra-thin films by virtue of density functional theory calculations. Our findings reveal that the ferromagnetic SRO films grown on SrTiO$_3$ (in-plane strain of $-$0.47$\%$) have an orthorhombic (both tilting and rotation) distorted structure and with an increasing amount of substrate-induced compressive strain the octahedral tilting angle is found to be suppressed gradually, with SRO films grown on NdGaO$_3$ (in-plane strain of $-$1.7$\%$…
Quantum dynamics of 16O in collision with ortho- and para-17O17O
2017
Abstract We report full quantum dynamical observables, such as integral and differential cross sections and rate constants, for the 16 O + 17 O 17 O reactive collision process. We particularly emphasize the effect coming from the nonzero nuclear spin of 17 O, leading to two nuclear spin isomers of 34 O 2 , ortho- and para- 34 O 2 which can be studied independently and behave differently. A comparison with the 16 O + 18 O 18 O collision is given. We find that processes involving 17 O 17 O are always faster than with 18 O 18 O.
Electrochemical Fluorocyclization of N-Allylcarboxamides to 2-Oxazolines by Hypervalent Iodine Mediator
2018
A resource saving protocol for the synthesis of 5-fluoromethyl-2-oxazolines by using electrochemistry has been realized. Thereby, a hypervalent iodine species I(III) is generated by anodic oxidation in the presence of Et3N·5HF and mediates the cyclization of N-allylcarboxamide to 5-fluoromethyl-2-oxazoline. This method allows application to various substrates furnishing the 2-oxazolines with yields up to 68%. The protocol is easy to conduct under constant current conditions offering a sustainable alternative over conventional reagent-based pathways.
Fluorocyclization of N-Propargylamides to Oxazoles by Electrochemically Generated ArIF2
2019
A sustainable synthesis of 5-fluoromethyl-2-oxazoles by use of electrochemistry has been demonstrated. Hypervalent ArIF2 is generated by direct electrochemical oxidation of iodoarene ArI in Et3N·5HF and mediates the fluorocyclization of N-propargylamides to 5-fluoromethyl-2-oxazoles. The stoichiometry in ArI turned out to be a key parameter in controlling the product selectivity. This electrochemical protocol provides access to fluorinated oxazoles starting from simply available N-propargylamides with yields up to 65% and offers a green alternative over conventional reagent-based approaches.