Search results for " Reflection"

Miradas urbanas del profesorado iberoamericano desde la cultura visual

2018

We are interested in knowing if there is a proper view of the teaching staff towards the urban reality. We start with verbal and visual descriptions, through images and texts. The research has been developed in Santiago de Chile, Valencia, Lima, Medellin, Montevideo and Buenos Aires, and combines direct participatory actions with personal interviews. The methodology follows a mixed method and is based on a case study that is complemented by research based on the arts. We concluded that there is a particular view of the teaching group towards their own city, which is full of critical reflection. This is a topic that has been little addressed and needs more attention.

Gestión del cuerpo y planificación urbana: Desplazamiento de significado en la reivención de cuepos y ciudades

2020

Contemporary cities have administrations increasingly marked by urban planning guidelines that are guided by business and marketing and, to attract investments and tourists, implement strategies that aim to homogenize, spectacularize and control urban space. However, other experiences in the city potentially build new meaning to it, which would escape those strategically planned, creating alternative possibilities of uses, diverging from the way thar are predicted and proposed by the governmental power in their urban marketing strategies. The article discusses how the occupation of urban spaces by transvestites for prostitution may imply reflections on the role of norms of gender in the (re…

Exploring the material mediation of dialogic space : A qualitative analysis of professional learning in initial teacher education based on reflective…

2019

This study addresses the crucial relationship between theory and practice as a key feature of professional learning in initial teacher education. The context for the study is an EU-funded intensive programme drawing on different dimensions of insideness and outsideness and artsbased pedagogies in response to the diversity of education today. The data for the study comes from self-selected pages from preservice teacher participants’ reflective sketchbooks. As a methodological approach that unifies the sensuous and cognitive this study suggests that reflective sketchbooks document the dialogic encounters of students whilst also providing a material space that can itself become a form of dialo…

A crustal seismic profile across Sicily (Italy): preliminary results

2008

Transformative Authorship Through Critical Dialogue : Concepts, Theory, and Practice

2021

This conceptual article deals with components and concepts of transformative learning, emphasizing the organization-level perspective on critical reflection. The discussion leans on the concept of transformative authorship and it is argued that it enables authoring processes through which professionals can recognize and recreate their routinized work practices. The aim of the research is to explore how professional experiences are integrated with reflexive, theoretical knowledge through critical dialogue. The authoring process of transformative authorship is illustrated with two complementary case studies from postgraduate health care education. In both cases, the learning tasks were desig…

Digital signal processing applied to noisy acoustic data.

2007

Frequently we deal with analog data from noisy acoustic measurements which need a preprocessing prior to the extraction of the information embedded. Data deterioration may be due to several reasons, for example: data recording on obsolete and technological poor support; bad signal conditioning (poor signal-to-noise ratio, non linearity and/or timevariance of the system under test). Sometimes information to be extracted from data is not conventional so it needs a dedicated processing. In this paper a novel audio data processing method from the autors experience in ancient open-air theatres research is shown.

ESR study of thianthrenium radical cation within acid zeolites

1997

Abstract Thianthrene (E ox = 1.47 V vs NHE) has been adsorbed into a series of zeolites beta (s) and ZSM-5 in the NH 4 + or H + forms, having different particle size and Si/Al ratio. The resulting population of generated thianthrenium radical cation was determined by a combination of diffuse reflectance and ESR spectroscopies. From the results obtained it can be concluded: i) the process takes predominantly place in the interior of the voids (XPS measurements and lack of influence of the particle size); ii) ZSM-5 is more efficient than zeolite s; iii) no strong acid sites are required (both NH 4 + and H + forms produced very similar spin concentrations); iv) the zeolite framework acts isola…

The [Fe(etz)6](BF4)2 Spin-Crossover System—Part One: High-Spin ⇌ Low-Spin Transition in Two Lattice Sites

1996

The [Fe(etz),](BF,), spin-cross-over system (etz = 1-ethyl-1 H-tetrazole) crystallizes in space group P1, with the following lattice constants at 298 K: a 10.419(3), b=15.709(1), c = 18.890(2) A = = 71.223(9), =77.986(10), and = 84.62(1)° V = 2862.0(9) A3 and Z = 3. Two nonequivalent lattice sites, one without (site A) and one with (site B) inversion symmetry, are observed. The population of the two sites nA:nB is 2:l. Iron(II) on site A undergoes a thermal low-spin (LS) high-spin (HS) transition with T1/2I, = 105 K. whereas that on site B remains in the high-spin state down to cryogenic temperatures. Application of external pressure of up to 1200 bar between 200 and 60 K does not cause for…

Steering of a Sub-GeV electron beam through planar channeling enhanced by rechanneling

2014

We report the observation of efficient steering of a 855 MeV electron beam at MAMI (MAinzer MIkrotron) facilities by means of planar channeling and volume reflection in a bent silicon crystal. A $30.5\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ thick plate of (211) oriented Si was bent to cause quasimosaic deformation of the (111) crystallographic planes, which were used for coherent interaction with the electron beam. The experimental results are analogous to those recorded some years ago at energy higher than 100 GeV, which is the only comparable study to date. Monte Carlo simulations demonstrated that rechanneling plays a considerable role in a particle's dynamics and hinders the spoiling…

Analysis of Caffeine, Sweeteners, and Other Additives in Beverages by Vibrational Spectroscopy

2001

This chapter presents a review of the scientific literature on the use of vibrational spectroscopy, near-infrared (NIR), mid-infrared (mid-IR), and Raman, for the analysis of caffeine, sweeteners, and other additives in beverages and related products. Direct analysis procedures of coffee and tea, for both classification according to precedence or variety and quantitative determination of caffeine, are available. For beverage analysis, caffeine has been determined by direct attenuated total reflection (ATR) measurement or by transmission spectroscopy in the mid-IR region after extraction with chloroform. Different strategies have been employed for the analysis of sweeteners in beverages and …