Antisymmetric distribution of permanent refractive index change in β-BaB2O4 crystal under exposure of femtosecond pulses

We have observed unusual asymmetrical refractive index change as a result of femtosecond laser inscription in a crystal without center of inversion. Profile of the refractive index change exhibits sign turn within the domain of femtosecond pulse exposure

Multistep Parametric Processes in Nonlinear Optics

We present a comprehensive overview of different types of parametric interactions in nonlinear optics which are associated with simultaneous phase-matching of several optical processes in quadratic nonlinear media, the so-called multistep parametric interactions. We discuss a number of possibilities of double and multiple phase-matching in engineered structures with the sign-varying second-order nonlinear susceptibility, including (i) uniform and non-uniform quasi-phase-matched (QPM) periodic optical superlattices, (ii) phase-reversed and periodically chirped QPM structures, and (iii) uniform QPM structures in non-collinear geometry, including recently fabricated two-dimensional nonlinear quadratic photonic crystals. We also summarize the most important experimental results on the multi-frequency generation due to multistep parametric processes, and overview the physics and basic properties of multi-color optical parametric solitons generated by these parametric interactions.Comment: To be published in Progress in Optic

Intervenção educacional em adolescentes com suspeita de SARS-CoV-2 em Guantánamo

Introduction: COVID-19 does not distinguish between age, race or sex. Children and young people constitute a sector of the population that does not escape this reality. Objective: to design an educational intervention aimed at raising awareness and preparedness about COVID-19 in adolescents aged 15 to 18 years, admitted to Facultad de Ciencias Médicas de Guantánamo isolation center for suspected cases of SARS-CoV-2. Method: between January 2021 and March 2021, an experimental study of an educational intervention type was carried out. The population was made up of adolescents admitted in the center, all included in the aforementioned age range. A total of 97 intentionally selected adolescents were included in the study. Inquires about the level of information they had on the subject were made, before and after applying the educational intervention. Results: before the implementation of the educational intervention, 50.5% of the adolescents expressed having an insufficient level of information regarding COVID-19, and this proportion decreased to 21.6% after applying it; which meant a 57.2% reduction in adolescents with theoretical deficiencies regarding the subject. The percentage that increased their preparation was 36.9% (p <0.05), which indicated the advantage of implementing the educational intervention.Conclusions: the educational intervention aimed at adolescents suspected of SARS-Cov-2 infection makes it possible to improve knowledge regarding COVID-19.Introducción: la COVID-19 no distingue entre edad, raza y sexo; los niños y jóvenes constituyen un sector de la población que no escapa a esta realidad. Objetivo: diseñar una intervención educativa dirigida a elevar el conocimiento y preparación sobre COVID-19 en adolescentes de 15 a 18 años ingresados en el centro de aislamiento de la Facultad de Ciencias Médicas de Guantánamo para casos sospechosos por el SARS-CoV-2. Método: entre enero de 2021 y marzo de 2021 se realizó un estudio experimental de tipo intervención educativa. El universo estuvo constituido por los adolescentes ingresados incluidos en el rango de edad antes señalado. Fueron incluidos en el estudio 97 adolescentes seleccionados de modo intencional. Se indagó sobre el nivel de información que poseían sobre el tema antes y después de aplicar la intervención educativa. Resultados: antes de la implementación de la intervención educativa el 50,5 % de los adolescentes expresó tener un nivel de información insuficiente respecto a la COVID-19, y esta proporción disminuyó a un 21,6 % luego de aplicarla; lo que significó una reducción en un 57,2 % en los adolescentes con carencias teóricas respecto al tema. El porcentaje que incrementó su preparación fue de un 36,9 % (p < 0,05), lo que indicó la ventaja de implementar la intervención educativa. Conclusiones: la intervención educativa dirigida a los adolescentes ingresados con sospecha de SARS-CoV-2 posibilita mejorar los conocimientos respecto a la COVID-19.Introdução: COVID-19 não faz distinção entre idade, raça e sexo; As crianças e os jovens constituem um setor da população que não foge a esta realidade. Objetivo: desenhar uma intervenção educativa com o objetivo de aumentar o conhecimento e o preparo sobre o COVID-19 em adolescentes de 15 a 18 anos internados no centro de isolamento da Facultad de Ciencias Médicas de Guantánamo por casos suspeitos de SARS-CoV-2. Método: entre janeiro de 2021 e março de 2021, foi realizado um estudo experimental do tipo intervenção educativa. O universo foi constituído por adolescentes internados, incluídos na referida faixa etária. 97 adolescentes selecionados intencionalmente foram incluídos no estudo. Eles indagaram sobre o nível de informação que possuíam sobre o assunto antes e após a aplicação da intervenção educativa. Resultados: antes da implementação da intervenção educativa, 50,5% dos adolescentes manifestaram nível insuficiente de informação sobre o COVID-19, e essa proporção diminuiu para 21,6% após a aplicação; o que significou uma redução de 57,2% nos adolescentes com deficiência teórica sobre o assunto. O percentual que aumentou o preparo foi de 36,9% (p <0,05), o que indicou a vantagem da implementação da intervenção educativa. Conclusões: a intervenção educativa direcionada a adolescentes internados com suspeita de SARS-CoV-2 possibilita aprimorar o conhecimento sobre o COVID-19

DMRN+16: Digital Music Research Network One-day Workshop 2021

DMRN+16: Digital Music Research Network One-day Workshop 2021 Queen Mary University of London Tuesday 21st December 2021 Keynote speakers Keynote 1. Prof. Sophie Scott -Director, Institute of Cognitive Neuroscience, UCL. Title: "Sound on the brain - insights from functional neuroimaging and neuroanatomy" Abstract In this talk I will use functional imaging and models of primate neuroanatomy to explore how sound is processed in the human brain. I will demonstrate that sound is represented cortically in different parallel streams. I will expand this to show how this can impact on the concept of auditory perception, which arguably incorporates multiple kinds of distinct perceptual processes. I will address the roles that subcortical processes play in this, and also the contributions from hemispheric asymmetries. Keynote 2: Prof. Gus Xia - Assistant Professor at NYU Shanghai Title: "Learning interpretable music representations: from human stupidity to artificial intelligence" Abstract Gus has been leading the Music X Lab in developing intelligent systems that help people better compose and learn music. In this talk, he will show us the importance of music representation for both humans and machines, and how to learn better music representations via the design of inductive bias. Once we got interpretable music representations, the potential applications are limitless

Combining Cellulose and Cyclodextrins: Fascinating Designs for Materials and Pharmaceutics

Cellulose and cyclodextrins possess unique properties that can be tailored, combined, and used in a considerable number of applications, including textiles, coatings, sensors, and drug delivery systems. Successfully structuring and applying cellulose and cyclodextrins conjugates requires a deep understanding of the relation between structural, and soft matter behavior, materials, energy, and function. This review focuses on the key advances in developing materials based on these conjugates. Relevant aspects regarding structural variations, methods of synthesis, processing and functionalization, and corresponding supramolecular properties are presented. The use of cellulose/cyclodextrin conjugates as intelligent platforms for applications in materials science and pharmaceutical technology is also outlined, focusing on drug delivery, textiles, and sensors

MEDIA EDUCATION IN SEXUAL EDUCATION OF PRESCHOOL CHILDREN IN GERMANY

Розглянуто проблему статевого виховання та статевої соціалізації дітей дошкільного віку у Німеччині. Розкрито специфіку використання засобів медіа-освіти у просвітницькій роботі із статевого виховання у дошкільних навчальних закладах Німеччини. Запропоновано медіа-пакети для педагогічного персоналу із інформаційним наповненням, що містить матеріали для вихователів та матеріали для дітей з багатьма креативними ідеями для ігор, за допомогою яких діти можуть пізнавати тіло та ознайомлюватися із сексуальністю відповідно до віку.The article is devoted the problem of sexual education and sexual socialization of children of preschool age in Germany. It is exposed the specific of the use offacilities ofmediaeducation in elucidative work fram sen ual education in preschool educational establishments of Germany