Autobiographical understandings: The evolution of a teaching self

In this study the author uses autobiographical method to explore specific questions about teacher development: How is a teacher identity constructed; What constitutes the teaching self? In addition this study seeks to consider the potential uses of autobiography as a tool in teacher education. Part One, A Quiver of Truths, is an autobiographical text in which the author explores issues of her own development as a teacher to reveal its broad roots in a wide expanse of life experiences, specifically the familial, cultural, and historical influences as well as broader issues of human development. Any attempt to make meaning out of experience draws one into an impulse to order one\u27s life. This study attends to the particular work of bringing that meaning to written language. The author composes the story of her life from a particular location marked by a multitude of factors including race, gender, class, development. Reflections on the act of writing are interwoven into the text making the work of autobiography itself an additional subject of the text. In writing this story the author attempts to make visible the story of her writing. Part Two, Notes and Further Ruminations extends the theorizing function of autobiography as well as provides more explicit discussion on the narrative strategies and structures employed by the author. The notes are meant to further explore the complexity of autobiographical work by discussing both the potentials and limitations involved in constructing a written story of one\u27s life. Readers are invited to both witness and participate in the autobiographical act. While the novelty of a traditional study lies in the reported findings, the novelty of this work is in the reading and the writing. It lies in the act of perception, both the writer\u27s and the reader\u27s

Interpretative interactivity : narrative and devices

El presente trabajo tiene como objetivo aportar reflexiones a los cambios y mutaciones producidos por las nuevas Tecnologías de la Comunicación y el Conocimiento (TIC), en los productos paradigmáticos de la “comunicación intencional", desde una mirada que abarca las transformaciones de los relatos y las competencias de un nuevo modelo de destinatario. Antes de la aparición de las tecnologías de reproducción y comunicación pública, (anteriormente llamada “comunicación de masas"), existieron dispositivos, fuera del circuito de la cultura escrita, que apelaban a emisores y destinatarios con competencias que excedían la interpretación del escrito.This work has as objective to contribute ideas to the changes and mutations produced by new communication technologies and knowledge (ICT), products of “intentional communication" paradigm, from a viewpoint that includes the transformation of the stories and skills of a new recipient Before the advent of technologies of reproduction and public communication, (formerly called “mass communication"), there were devices outside the circuit of the written culture that appealed to senders and recipients with powers exceeding the interpretation of written.Fil: Portalupi, María Cristina. Universidad Nacional de Cuyo. Facultad de Artes y Diseñ

Drenagem precoce de abscesso tubo-ovariano guiada por ultrassonografia ou terapia conservadora : análise comparativa entre desfechos

Introdução: Os abscessos tubo-ovarianos (ATOS) são importantes causas de morbidade feminina. O tratamento habitual é baseado em antibioticoterapia isolada ou associada a abordagem invasiva. No entanto, os procedimentos invasivos guiados por imagem, representam uma possibilidade de manejo desta patologia. Objetivo: Realizar uma análise comparativa entre o prognóstico de pacientes tratadas com tratamento clínico padrão (antibioticoterapia) versus pacientes que foram submetidas a drenagem primária guiada por ultrassonografia, associada também a antibioticoterapia, analisando o tempo de permanência hospitalar e os desfechos de morbimortalidade, como melhora clínica e laboratorial, complicações, necessidade de (re)intervenção, reinternação e morte. Método: Foi realizado um estudo observacional de coorte retrospectiva, através da revisão de prontuários de pacientes com diagnósticos de Doença Inflamatória Pélvica (DIP) e ATO, conforme CID, registrados entre os meses de janeiro de 2017 a julho de 2022 no Hospital Fêmina. O grupo de controle foi representado pelas pacientes que receberam apenas tratamento com antibioticoterapia endovenosa. Já no grupo dos casos estão pacientes que além da antibioticoterapia padrão foram submetidas a punção guiada por ultrassonografia transvaginal. Os dados foram digitados em planilha Excel e exportados para o programa SPSS v. 20.0. Valores de P <0,05 foram considerados indicativos de significância estatística. Resultados: Dos 113 pacientes do estudo, 50 (44%) mulheres foram tratadas isoladamente com antibióticos, 21 (18%) foram submetidos a drenagem precoce em menos de 72 horas da admissão e 42 (37%) submetidas a drenagem guiada após esse período. Não houve diferença estatisticamente significativa no tempo de permanência hospitalar entre os grupos simultaneamente, sendo em média de 6,4 dias nos controles e de 5,1 dias no grupo de drenagem precoce, e de 9,6 dias no grupo de drenagens tardias de (p=0,290). Houve redução de em média 2,9 dias de permanência hospitalar ((IC 95% (-4,8 a -0,9) (p=0,04)) no grupo da drenagem precoce (<72 horas) em relação aos controles. A melhora clínica precoce (p= 0,012) e a queda esperada da PCR (p= 0,033) foram mais frequentes nas pacientes submetidas à drenagem. O tempo de permanência hospitalar aumenta com o diâmetro do abscesso: 0,4 ((IC 95% 0,1 – 0,7) (p= 0,05)) dias a cada centímetro, independentemente das outras variáveis. Conclusão: A drenagem guiada por ultrassom de abscessos é uma técnica de sucesso, com mínimas complicações relacionadas ao procedimento, acelerando a melhora clínica e laboratorial das pacientes e reduzindo o tempo de internação quando realizada precocemente, idealmente em até 72 horas da admissão.Introduction: Tubo-ovarian abscesses (ATOS) are important causes of increased female morbidity. The usual treatment is based on antibiotic therapy or a surgical approach. However, invasive image-guided procedures are an alternative treatment for this pathology. Objective: To perform a comparative analysis between the morbidity outcomes and the prognosis of patients treated with standard clinical treatment (broad spectrum antibiotic therapy) versus patients treated with early ultrasound-guided drainage, also associated with antibiotic therapy. Method: A longitudinal study was carried out, with a concurrent design through the review of medical records of patients with diagnoses of DIP and ACT, according to the ICD, registered between the months of January 2017 to December 2021 at Hospital Femina. The standard group included patients who received only treatment with intravenous antibiotic therapy. In the control group, there were patients who, in addition to standard antibiotic therapy, underwent transvaginal ultrasound-guided puncture. The data will be entered into an Excel spreadsheet and later exported to the SPSS v program. 20.0. Two-sided P values <0.05 were considered indications of statistical significance. Results: Of the 113 patients in the study, 50 (44%) women were treated alone with antibiotics, 21 (18%) underwent early drainage within 72 hours of admission, and 42 (37%) underwent guided drainage after this period. There was no statistically significant difference in the length of hospital stay between the groups simultaneously, with an average of 6.4 days in the controls and 5.1 days in the early drainage group, and 9.6 days in the late drainage group (p=0.290). There was an average reduction of 2.9 days of hospital stay ((CI 95% (-4.8 to -0.9) (p=0.04)) in the early drainage group (<72 hours) compared to controls. Early clinical improvement (p= 0.012) and expected drop in CRP (p= 0.033) were more frequent in patients who underwent drainage. Length of hospital stay increases with abscess diameter: 0.4 ((95% CI 0.1 – 0.7) (p= 0.05)) days per centimeter, regardless of other variables. Conclusion: Ultrasound-guided drainage of abscesses is a highly successful technique, with minimal procedure-related complications, with brief clinical and laboratory improvement of the patients, as well as a reduction in the length of hospital stay provided it is performed early, ideally within 72 hours of admission

Effect of hole-shape irregularities on photonic crystal waveguides

The effect of irregular hole shape on the spectrum and radiation losses of a photonic crystal waveguide is studied using Bloch-mode expansion. Deviations from a perfectly circular hole are characterized by a radius fluctuation amplitude and correlation angle. It is found that the parameter which determines the magnitude of the effect of disorder is the standard deviation of the hole areas. Hence, for a fixed amplitude of the radius fluctuation around the hole, those effects are strongly dependent on the correlation angle of the irregular shape. This result suggests routes to potentially improve the quality of photonic crystal structures.Comment: 3 pages, 3 figure

Highly indistinguishable single photons from incoherently and coherently excited GaAs quantum dots

Semiconductor quantum dots are converging towards the demanding requirements of photonic quantum technologies. Among different systems, quantum dots with dimensions exceeding the free-exciton Bohr radius are appealing because of their high oscillator strengths. While this property has received much attention in the context of cavity quantum electrodynamics, little is known about the degree of indistinguishability of single photons consecutively emitted by such dots and on the proper excitation schemes to achieve high indistinguishability. A prominent example is represented by GaAs quantum dots obtained by local droplet etching, which recently outperformed other systems as triggered sources of entangled photon pairs. On these dots, we compare different single-photon excitation mechanisms, and we find (i) a "phonon bottleneck" and poor indistinguishability for conventional excitation via excited states and (ii) photon indistinguishablilities above 90% for both strictly resonant and for incoherent acoustic- and optical-phonon-assisted excitation. Among the excitation schemes, optical phonon-assisted excitation enables straightforward laser rejection without a compromise on the source brightness together with a high photon indistinguishability

Cavity-Enhanced Two-Photon Interference using Remote Quantum Dot Sources

Quantum dots in cavities have been shown to be very bright sources of indistinguishable single photons. Yet the quantum interference between two bright quantum dot sources, a critical step for photon based quantum computation, has never been investigated. Here we report on such a measurement, taking advantage of a deterministic fabrication of the devices. We show that cavity quantum electrodynamics can efficiently improve the quantum interference between remote quantum dot sources: poorly indistinguishable photons can still interfere with good contrast with high quality photons emitted by a source in the strong Purcell regime. Our measurements and calculations show that cavity quantum electrodynamics is a powerful tool for interconnecting several devices.Comment: 5 pages, 4 figures (Supp. Mat. attached