Search results for "Intrinsic"
showing 10 items of 386 documents
De la performance musicale dans la Guyane traditionnelle : expression cognitive singulière d?une musique-verbe
2021
Guianese culture and traditional music, here evoked, are various. It is more a transcultural process that, along centuries, gave an original result born in the Americas, in Guiana in this case. It is a form of refoundation, of recreation of cultures and new human beings generally called Creoles. The musical performance, that I study here, is the echo of social and cultural space of this reformulation of thought, life, and conception of the world. It is, as well, a mean of transposition and transformation of the values issued of diverse sources and categories. It is in no way a second-rate cultural practice, as it is the place where were born philosophies and actions for common life as well …
Vērtēšana kā skolēna iekšējās motivācijas stimuls sākumskolā
2021
Ērika Ieviņa bakalaura darbs “Vērtēšana kā skolēna iekšējās motivācijas stimuls sākumskolā” ir izstrādāts Latvijas Universitātes Pedagoģijas, psiholoģijas un mākslas fakultātes studiju programmā “Skolotājs” apakšprogrammā “Sākumskolas skolotājas ar tiesībām mācīt vienu priekšmetu pamatskolā”. Darba vadītāja asociētā profesore Dr.paed Ilze Briška. Pētījuma mērķis – noskaidrot, kā vērtēšana ietekmē skolēna iekšējo motivāciju sākumskolā. Teorētiskajā daļa - pētīti un analizētas dažādu psihologu un pedagogu atziņas par motivāciju un iekšējās motivācijas veidošanos sākumskolas skolēniem, kā arī dažādi vērtēšanas principi un metodiskie paņēmieni sākumskolas mācību procesā. Empīriskajā daļa - apra…
The predatory mirid Dicyphus maroccanus as a new potential biological control agent in tomato crops
2014
The first record of the omnivorous predator Dicyphus maroccanus Wagner (Hemiptera: Miridae) inhabiting tomato crops in the Valencia region (East Coast of Spain) was in 2009. Since then, D. maroccanus has often been found preying on the eggs of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in this area. To evaluate this predator’s potential as a biological control agent, its life-history traits in the presence and absence of prey [(eggs of Ephestia kuehniella Zeller (Lepidoptera: Pyralidae)] on tomato plants were studied under laboratory conditions. Immature stages that preyed on eggs of E. kuehniella developed successfully. However, no nymph completed development on the plant without t…
Ripostigli di bronzi nella Sicilia di età arcaica. Contesti di rinvenimento, funzioni e aspetti ponderali
2012
The contribution analyzes the structure, composition and contexts of the archaic age bronze hoards found in the colonial and anellenic sites of Sicily. The particular frequency of hoards in sacred areas is evident, where they are consecrated to the chthonic divinities due to their intrinsic value, linked to their metallic nature and their notion of weight.
Brīvās rotaļas izmantošana sākumskolas skolēniem pašvadītas mācīšanās sekmēšanai
2022
Diplomdarba nosaukums: “Brīvās rotaļas izmantošana sākumskolas skolēniem pašvadītas mācīšanās sekmēšanai”. Darba mērķis: teorētiski izpētīt un analizēt literatūru, lai empīriski pierādītu brīvās rotaļas izmantošanas nozīmīgumu pašvadītas mācīšanās prasmes attīstīšanai sākumskolas skolēniem. Izstrādāt ieteikumus brīvās rotaļas integrēšanai mācību procesā. Darba uzdevumi: 1.Izpētīt pedagoģijas un psiholoģijas zinātnieku atziņas par pašvadītu mācīšanos, 2.Noskaidrot brīvās rotaļas jēdzienu, veidus, izmantojot pedagoģisko, psiholoģisko, neirobioloģisko, zinātnisko literatūru un analizēt tās ietekmi uz pašvadītu mācīšanos un izmantošanas iespējām sākumskolā. 3.Integrēt brīvās rotaļas stundas māc…
Intervención psicológica en natación adaptada desde la perspectiva del coaching motivacional
2016
Este artículo presenta la intervención psicológica realizada con una mujer deportista de 19 años que presenta una discapacidad física y cuyo objetivo principal es el de acabar una travesía a nado en mar abierto. Para ayudarla en el logro de su meta, se realizan siete sesiones con una frecuencia de una vez a la semana tomando como punto de partida el modelo de coaching motivacional “La Jirafa de Cantón”, donde el psicólogo genera un entorno facilitador para que el cliente descubra y encuentre sus propias soluciones. En cuanto a la evaluación de su eficacia, se utiliza un diseño test-retest con los siguientes instrumentos: “Escala de Autoestima” de Rosenberg (1965), “Escala de Bienestar Psico…
Synthesis and characterization of well-defined poly(tert-butyl acrylate) star polymers
2009
Abstract Star polymers with different numbers and lengths of poly(tert-butyl acrylate) (PTBA) arms were obtained via atom transfer radical polymerization. Aliphatic alcohols with different number of hydroxyl groups varying from 3 to 6 and calix[4]arenes based on pyrogallol with 12 and 16 phenol groups were transformed to bromoester derivatives to prepare multifunctional ATRP initiators used as the cores of the stars. The star polymers were characterized by GPC with refractive index, multiangle laser light scattering and viscosimetric detectors. The molar masses of the stars reached 70,000 g/mol and the molar mass dispersities did not exceed 1.2. To elucidate the compact structure of the sta…
Polyelectrolytes: Intrinsic Viscosities in the Absence and in the Presence of Salt
2008
Intrinsic viscosities were determined at 25 °C for 10 samples of narrowly distributed sodium polystyrene sulfonate (the molecular weights M ranging from 0.9 to 1000 kg/mol) in pure water and in aqueous solutions containing 0.9 wt % NaCl from the slope of ln ηrel versus polymer concentration. In the middle range of M, the [η] values are in the former case almost 2 orders of magnitude larger than in the latter case. In the absence of salt, the plot of log [η] as a function of log M exhibits a sigmoidal shape, which can be approximated within the interval 3 < M (in kg mol-1) < 30 by log[η] = −0.17 + 2.1 log M. In the presence of salt, the following relation holds true in the entire regime: lo…
Viscometric study of mixtures of neutral and charged polymers in aqueous solution
1997
The viscosity behaviour of aqueous mixtures formed by a polyelectrolyte (A) and a neutral polymer (B) such as polystyrene sulfonate (PSS)-polyvinylpyrrolidone (PVP) and polylysine (PLL)-PVP has been studied at 25°C. The intrinsic viscosity and viscosity interaction parameter of each polymer in water have been determined and have served us to estimate the compatibility of the different mixtures according to two different methodologies: (i) mixtures of two polymers in water as solvent and (ii) mixtures of either polymer A OFB in a solvent formed by either polymer B or A in water ("polymer solvent method"). By comparing the experimental and theoretical viscosity data it is clearly seen that: m…
Consequences of linking charged and uncharged monomers to binary copolymers studied in dilute solution. Part II: Non-additivity effects in the viscom…
2017
Abstract Copolymers of ethylene oxide (EO) and N,N-dimethyl aminoethyl methacrylate (R) or [2-(methacryloyloxy)ethyl] trimethylammonium iodide (R+) were studied in dilute solution: P ( EO p – b – R n ) ( I ) , P(Rn(1−f) – ran – R+n f) ( II ) , and P ( EO p – b – R n + ) ( III ) ; n and p give the numbers of monomers and f is the degree of charging. For II (variable f) and III (variable n) the effects of charging on the intrinsic viscosities [η] are well described by Boltzmann sigmoids. The deviation of [ η ] from [ η ] add (calculated from the corresponding homopolymer data, assuming additivity of the individual contributions) are quantified by σ = [ η ] / [ η ] add - 1 measuring the segreg…