Search results for "ABA"

Aspazijas personības un daiļrades apguve 11. klasē

2019

Diplomdarba „Aspazijas personības un daiļrades apguve 11. klasē” mērķis ir izveidot metodiskās sistēmas variantu, kas veicinātu skolēnu interesi par literatūru un rosinātu pētīt Aspazijas daiļradē rodamās idejas. Darbam ir piecas nodaļas ar apakšnodaļām, ievads, secinājumi un pielikumi. Pirmajā nodaļā iepazīta Aspazijas personība un tās ietekme uz dzejnieces daiļradi, kā arī Aspazijas dzejas un drāmas specifika, uzsverot skolēniem noderīgo informāciju. Otrajā nodaļā ir apzināta teorētiskā literatūra par literatūru kā mācību priekšmetu un tā specifiku. Trešajā nodaļā ir aprakstīta skolotāja sagatavošanās darbam klasē, iekļaujot skolēnu vecumposma īpatnības, pētījumā iesaistīto skolēnu rakstu…

Waiting for Fatima to become Sophie

2018

L’analyse se focalise sur l’« attente », comme temps de la narration du roman Al-kāfira de ‘Alī Badr et moyen de dénonciation de la mentalité misogyne imposée par les mutašaddidīn musallaḥīn qui contrôlent le village où Fāṭima-Sophie a passé son enfance et son adolescence. Dans ce climat de répression politique et d’oppression sociale, la représentation littéraire de l’attente devient métaphore d’une condition existentielle et d’une identité à la fois individuelle et collective.

Realidad y estilo en "trabajos y días"

1970

Reinforcement learning approach to nonequilibrium quantum thermodynamics

2021

We use a reinforcement learning approach to reduce entropy production in a closed quantum system brought out of equilibrium. Our strategy makes use of an external control Hamiltonian and a policy gradient technique. Our approach bears no dependence on the quantitative tool chosen to characterize the degree of thermodynamic irreversibility induced by the dynamical process being considered, require little knowledge of the dynamics itself and does not need the tracking of the quantum state of the system during the evolution, thus embodying an experimentally non-demanding approach to the control of non-equilibrium quantum thermodynamics. We successfully apply our methods to the case of single- …

La sonrisa del éxito: figuraciones de una subjetividad exigida

2014

El presente artículo analiza cómo se afianza en la escena social la corporalidad del liderazgo. Para ello, aborda imágenes y narrativas que circulan en los entramados simbólicos de la cultura del bienestar, que también se denomina como cultura activa. El cuerpo del liderazgo se ofrece al público mediante estrategias positivas y negativas. Éstas, en la medida que encumbran el estilo de vida activo, demonizan aquellas prácticas que no responden a los valores sanitarios y productivos promulgados por el ethos empresarial emergente. Se concluye que la encarnación de una subjetividad emprendedora se impone paulatinamente como parámetro de integración de un individuo en los diagramas económicos y …

Parasite–copepod interactions in Svalbard: diversity, host specificity, and seasonal patterns

2022

AbstractCopepods of the genera Calanus and Pseudocalanus are important components of Arctic marine ecosystems. Despite the key roles of these zooplankters, little is known about the organisms they interact with most intimately, their parasites and symbionts. We applied metabarcode sequencing to uncover eukaryotic parasites present within these two copepod genera from three areas around the high Arctic archipelago of Svalbard. Ten distinct parasite groups were observed: four different Apostome ciliates, four different dinoflagellates (Chytriodinium sp., Ellobiopsis sp., Thalassomyces sp., and Hematodinium sp.), a Paradinium sp., and a trematode. Apostome ciliates closely related to Pseudocol…

Gel combustion synthesis and magnetic properties of CoFe2O4, ZnFe2O4, and MgFe2O4 using 6-aminohexanoic acid as a new fuel

2020

Abstract For the first time, 6-aminohexanoic acid is used as an alternative fuel in the synthesis of the spinel ferrites with compositions CoFe2O4, ZnFe2O4 and MgFe2O4 using gel combustion synthesis with different oxidizer-to-fuel (O/F) ratios. The gel precursors were studied by differential thermal analysis and thermogravimetry (DTA/TG), which showed that the ignition temperature depends on the gel precursor, being around 230 °C, 130 °C and 275 °C for CoFe2O4, ZnFe2O4, and MgFe2O4, respectively. These results showed than the 6-aminohexanoic acid has an ignition temperature lower than the urea and the citric acid when were used in the synthesis of the spinel ferrites by gel combustion. More…

Interface evolution during magnetic pulse welding under extremely high strain rate collision: mechanisms, thermomechanical kinetics and consequences

2020

Abstract Magnetic pulse welding enables to produce perplexing interfacial morphologies due to the complex material response during the high strain rate collision. Thus, a thermomechanical model is used in this study to investigate the formation mechanism of the wake, vortex, swirling and mesoscale cavities with the increase of the impact intensity at the interface. The formation of these interfacial features are difficult to characterize by insitu methods, thus the origin of phenomena still remain a subject of open discussion. Our studies identify the governing mechanisms and the associated thermomechanical kinetics, which are responsible for the formation mechanism of interfacial features.…

Laser control in open molecular systems: STIRAP and Optimal Control

2007

We examine the effect of dissipation on the laser control of a process that transforms a state into a superposed state. We consider a two-dimensional double well of a single potential energy surface. In the context of reactivity, the objective of the control is the localization in a given well, for instance the creation of an enantiomeric form whereas for quantum gates, this control corresponds to one of the transformation of the Hadamard gate. The environment is either modelled by coupling few harmonic oscillators (up to five) to the system or by an effective interaction with an Ohmic bath. In the discrete case, dynamics is carried out exactly by using the coupled harmonic adiabatic channe…

A quantum dynamics study of the benzopyran ring opening guided by laser pulses

2014

Abstract The ring-opening photoisomerization of benzopyran, which occurs via a photochemical route involving a conical intersection, has been studied with quantum dynamics calculations using the multi-configuration time-dependent Hartree method (MCTDH). We introduce a mechanistic strategy to control the conversion of benzopyran to merocyanine with laser pulses. We use a six-dimensional model developed in a previous work for the potential energy surfaces (PES) based on an extension of the vibronic-coupling Hamiltonian model (diabatization method by ansatz), which depends on the most active degrees of freedom. The main objective of these quantum dynamics simulations is to provide a set of str…