bluuebunny/crossref_metadata_2025 huggingface dataset:
Análise das representações midiáticas da Educação Física escolar pelo jornal Zero Hora
Authors: Sebastiany Eduardo Gabriel , Sanfelice Gustavo Roese , Lopes Rodrigo Alberto
Published: November 2024

Este artigo buscou analisar as representações midiáticas da Educação Física escolar sob as lentes do jornal Zero Hora através de uma análise de conteúdo. Para isso, foram selecionadas 18 notícias do período de 01 de janeiro de 2016 até 30 de junho de 2022 que se enquadraram em cinco categorias teóricas, quantificadas pelo seu destaque no jornal. Foram elas: Organização educacional com 12 inferências; Espaço de prática com 16 inferências; Práticas esportivas com 17 inferências; Pandemia com 30 inferências; e Manifestações corporais não hegemônicas com 31 inferências. Apesar da categoria com maior destaque ser de práticas não hegemônicas, os elementos presentes nas notícias não evidenciam os conteúdos da Educação Física presentes nas propostas. Majoritariamente, as demais notícias partem do pressuposto que Educação Física, aptidões físicas e saúde são sinônimos, alinhando as falas do jornal com a expectativa social acerca da disciplina. Desta forma, verificou-se que o Zero Hora é um jornal conservador que só deve trazer mudanças em seu discurso sobre a Educação Física escolar quando as percepções da cultura corporal do movimento já estiverem presentes no imaginário social.
Situação de aprendizagem na formação docente
Authors: Amaro Rosana , Baxto Welinton , Soares Jitone Leônidas , Feres Alfredo
Published: November 2024

Este artigo tem por objetivo pesquisar a disciplina de estágio supervisionado na perspectiva da Educação Física e a aplicação das Tecnologias Digitais da Informação e Comunicação, na prática docente. Buscou-se contextualizar a Educação Física na área de linguagens, e para tanto, recorreu-se aos seus antecedentes curriculares. Assim, refletiu-se sobre a cultura digital num olhar da Base Nacional Comum Curricular. Apoiou-se na abordagem metodológica qualitativa e exploratório-descritivo. Os achados da pesquisa, em grande medida, constituíram-se na proposta das estratégias didáticas e práticas em duas disciplinas de estágio supervisionado do curso de Licenciatura em Educação Física da Universidade de Brasília, na ocasião do Ensino Remoto Emergencial, no contexto da pandemia do COVID-19. Os achados demonstraram que as estratégias didáticas e práticas pedagógicas foram experiências inovadoras. Por outro, evidenciaram a necessidade do desenvolvimento de competência digital, na prática dos futuros docentes, na perspectiva da Educação Física e a aplicação das Tecnologias Digitais da Informação e Comunicação.
Mídias, tecnologias e Educação Física
Authors: Miranda Lyana Virgínia Thédiga de
Published: November 2024

Em formato de ensaio, o presente texto objetiva uma aproximação dos estudos de mídias e tecnologias da Educação Física (EF) a preceitos do Novo Materialismo (NM), com o foco na vertente Feminista (NMF). Para tanto, expõe e discute algumas das principais características desse campo emergente, propondo-as como inspirações para a pesquisa e a prática em EF na cultura digital. O ensaio se organiza em duas grandes seções. A primeira sugere um breve debate sobre os estudos de EF, mídias, tecnologias e comunicação, aproximando tais campos aos preceitos do NM e no interesse da cultura digital. A segunda apresenta o NMF e elenca duas perspectivas importantes relacionadas a essa corrente: os pressupostos do pensamento relacional e a importância metodológica dos mapeamentos. Por fim, o ensaio aponta que, ao ser tomado não como um conjunto teórico, mas como dispositivo de sensibilização, o NMF abre oportunidades de considerar as práticas didáticas e de pesquisa na EF, com as tecnologias e mídias, corporal e socialmente situadas. Além disso, assinala a necessidade de mais pesquisas e debates sobre o NMF na EF.
ENTREVISTA – Mauro Betti, por Alan Q Costa
Authors: Betti Mauro , Costa Alan Queiroz da
Published: November 2024

Entrevista realizada com o Prof. Dr. Mauro Betti (UNESP), por Alan Q Costa (UPE), em julho de 2023, para compor o Dossiê “Educação Física e Linguagens: mídias, tecnologias e cultura digital na escola.
Mídias e tecnologias como “linguagens”
Authors: Costa Alan Queiroz da , Mezzaroba Cristiano , Zylberberg Tatiana Passos
Published: November 2024

A partir das mídias e/ou Tecnologias de Informação e Comunicação (TICs) que os membros do comitê científico (2021-2023) do Grupo de Trabalho Temático de Comunicação e Mídia (GTT2) do Colégio Brasileiro de Ciências do Esporte (CBCE) mais se envolveram em seus estudos, apontam-se algumas reflexões para a Educação Física (EF) no contexto educacional. Tendo como metodologia uma abordagem qualitativa descritiva de pesquisa a partir de Zylberberg et al. (2022), valorizamos as práticas pedagógicas nas quais os professores(as) de EF podem, junto com os estudantes, engendrar experiências mais significativas, colaborativas e interdisciplinares em meio a cultura digital. Conforme a Base Nacional Comum Curricular (2017), os professores(as) podem explorar diferentes recursos, como vídeos, fotografias, textos escritos, áudios e imagens, para estimular a expressão corporal, a criatividade, a reflexão crítica e a compreensão de conceitos relacionados à EF, enquanto linguagem, em relação à cultura corporal de movimento. Além disso, as mídias e TICs também proporcionam novas formas de interação e comunicação, permitindo o compartilhamento de experiências, a colaboração e a construção coletiva de conhecimento. Diante desse cenário, será essencial utilizar a mídia e TICs de forma crítica e reflexiva, para promover uma formação atualizada frente os desafios do mundo contemporâneo.
Estratégias de mediação de escrita no Ensino Médio em busca de espaços para as subjetividades
Authors: Favero Netto Daniela , Fortes Boeira Isabella
Published: November 2024

Este artigo analisa estratégias de mediação de escrita em um processo de ensino-aprendizagem com espaços para as subjetividades em turmas de segundo ano do Ensino Médio de uma escola federal de Porto Alegre. A pesquisa buscou diferenciar uma escrita burocrática (GRIGOLETTO, 2011) de uma com espaço para as subjetividades, ou seja, destituída da contenção imposta por modelos estabelecidos. Como fundamentação teórica, adotamos a concepção bakhtiniana de linguagem e de escrita como práticas sociais indissociáveis do contexto sócio-histórico (BAKHTIN, 2011). De cunho qualitativo-interpretativo, a pesquisa se caracteriza como uma pesquisa-ação (THIOLLENT, 2009). A mediação de escrita fundamentou-se nas seguintes qualidades discursivas: unidade temática, concretude e questionamento (GUEDES, 2009). Os dados utilizados para a análise foram os textos dos estudantes, os bilhetes orientadores de reescrita (MANGABEIRA; DA COSTA; SIMÕES, 2012) e os registros em diários de campo (GIL, 2008), e os resultados foram cotejados com os dados de uma pesquisa anterior realizada em situação de ensino remoto. A leitura em voz alta dos textos produzidos e os espaços de aula destinados à elaboração dos textos possibilitaram a descoberta de novas estratégias no ambiente presencial, quais sejam: a interlocução imediata e a resolução de dúvidas sobre o bilhete orientador.
A constituição da área de Artes Visuais do CAp/UFRGS: movimentos de uma investigação
Authors: Storck Karine
Published: November 2024

O presente artigo apresenta resultados parciais de uma investigação em desenvolvimento no Programa de Pós-Graduação em Educação da Universidade Federal do Rio Grande do Sul (PPGEdu/UFRGS) que, dentre seus objetivos principais, intenciona compreender a constituição do ensino de Artes Visuais no Colégio de Aplicação da UFRGS (CAp/UFRGS). Com o uso de fontes diversas, como a documentação disponível nos arquivos da instituição; um acervo fotográfico disponibilizado por uma docente da área; textos e relatos ou depoimentos já publicados por docentes que integraram esta área de ensino no CAp/UFRGS, o trabalho de investigação que se apresenta pretende também organizar e disponibilizar registros acerca do histórico do ensino das Artes Visuais na instituição. Como lentes que ainda principiam tal análise, anuncia-se uma aproximação com a perspectiva foucaultiana para os estudos em educação, a qual implica a desnaturalização dos modos de ensino ali praticados e o ensaio de possibilidades para pensar-se no ensino de Artes Visuais a partir do tempo e urgências do presente.
EJA do Cap/UFRGS: lugar de retorno, resgate, recomeço e reconhecimento
Authors: Pavei Katiuci
Published: November 2024

Neste texto, iremos relatar uma proposta de projeto de ensino-extensão, configurada pela disciplina eletiva Imagens da EJA alfabetização e produção visual e pela ação de extensão Imagens e Retratos da EJA, realizada junto às alunas e aos alunos da modalidade Educação de Jovens e Adultos (EJA) do Colégio de Aplicação (CAp) da Universidade Federal do Rio Grande do Sul (UFRGS). O objetivo geral é auxiliar no processo de ampliação da visibilidade social da EJA do CAp e das/os estudantes participantes, por meio de produção de visualidades imagéticas. Para tanto, a equipe promotora é interdisciplinar e realiza oficinas de leitura de imagem, sensibilização do olhar, introdução e prática fotográfica. O grupo estudantil desenvolveu funções de direção e execução de fotografia, de curadoria, de expositoras/es e de apresentadoras/es de suas criações. O projeto promoveu momentos de socialização das fotos e de experiências à comunidade escolar e à comunidade em geral, através de exposições físicas e virtuais, participação em atividades em espaços educacionais e culturais e criação de um repositório digital e publicações no Instagram (@imagens_e_retratos_eja). Também apresentaremos uma narrativa visual criada de forma colaborativa entre a professora e estudantes em homenagem ao 70° aniversário do colégio.
Alternativas para el manejo integral de aguas subterráneas en las zonas de expansión occidental de la ciudad de Pereira
Authors: Paredes Cuervo Diego , Lasso Rosero Julián Enrique , Zuleta Lemus Derly del Socorro , Gómez Benítez Melissa Andrea
Published: November 2024

El presente texto contiene los resultados del proyecto de investigación titulado “Alternativas para el manejo de aguas subterráneas en las zonas de expansión occidental de la ciudad de Pereira, Colombia”, financiado por la Universidad Tecnológica de Pereira -UTP- en el marco de la convocatoria interna del año 2010, el cual fue desarrollado por el Grupo de Investigación en Agua y Saneamiento -GIAS-de la Facultad de Ciencias Ambientales durante los años 2012 y 2013. La investigación se llevó a cabo en torno a la disponibilidad, calidad y explotación del recurso hídrico subterráneo y su afectación tanto en calidad como cantidad, por los procesos urbanísticos que se puedan desarrollar en zonas identificadas como estratégicas para la recarga de acuíferos y representa un reto de gran importancia para la academia y las instituciones encargadas de orientar el desarrollo del territorio con criterios de sostenibilidad económica y ambiental. En este contexto, los resultados de investigación del presente proyecto sirven de soporte técnico para la revisión y ajuste de las decisiones de planeamiento y desarrollo urbano previsto sobre zonas de gran valor ambiental, teniendo en cuenta que existen acuíferos y zonas de recarga e infiltración. El texto presenta la revisión conceptual sobre aguas subterráneas, los resultados del análisis de las condiciones hidrológicas, la determinación de la oferta y la demanda hídrica subterránea y estima una posible influencia negativa sobre este recurso por presiones socioeconómicas y el incremento de las densidades poblacionales. Finalmente, identifica y prioriza las estrategias ecotecnológicas que permitan mitigar el impacto de la urbanización sobre los recursos hídricos subterráneos, incorporando criterios técnicos, económicos y ambientales.
Simulated retinal thermal damage for repetitively pulsed lasers with rectangular shaped irradiance profiles
Authors: Kotzur Sebastian , Wahl Siegfried , Frederiksen Annette
Published: November 2024

Laser radiation in the visible and near infrared wavelength region is imaged on the retina by the human eye. In case of excessive radiation irreversible retinal damage can be caused. For emission durations longer than several microseconds, the light-tissue interaction can be described using a thermal model and the injury threshold values can be simulated by solving the Arrhenius equation with the temporal temperature behavior within the retinal pigment epithelium. A three-dimensional computer model which is validated against experimentally measured thermal injury thresholds, is used to predict thresholds for rectangular irradiance profiles.
Temperature calculation on retina irradiated by pulsed scanning LiDAR
Authors: Wang Yunfeng , Meng Ying
Published: November 2024

In recent years, LiDARs as a type of vehicle sensors, have played a crucial role in the field of autonomous driving. LiDARs generally emit infrared pulsed laser and accomplish 3D reconstruction of the surrounding environment by detecting the received echo signal. LiDAR systems are often complex in architecture and scanning characteristics, which can be regarded as scanning pulsed laser source in normal operation, and their emitted laser pulses are separated temporally and spatially. As MPEs (Maximum Permissible Exposure) values in IEC 60825 standard are based on experimental threshold data from stationary laser source with certain pulse duration, there may be potential mismatch when applying the thresholds to scanning pulsed emission. For example, cooling may take into effect due to spatial pulses distribution. In this case, overly strict evaluation methods, which cannot reflect real biological damage mechanism for scanning systems, will be probably employed to limit emission level of the products, thus restricting their performance and even hindering the development of the industry in turn. The main problem is there is still a lack of experimental in-vivo data for scanning laser sources, experts in this area are calling for more research. Meanwhile, thermal simulation has been proved to be a reliable analysis method in previous studies, and it would be possible to conduct basic research to investigate damage mechanism for scanning pulsed laser. Therefore, in this paper, impacts of scanning parameters from LiDAR model, including beam divergence, beam repetitive pulse frequency, angular resolution, frame rate, on temperature rise and heat dissipation on the irradiated retina were discussed. The main goal of this work is to present basic findings and propose ideas to further investigate on retinal hazards of scanning pulsed emission using thermal simulation methods.
Laser show safety for smaller shows: The ILDA category a laser show standard
Authors: Murphy Patrick
Published: November 2024

The International Laser Display Association has developed a “Category A Standard” for laser shows that ILDA considers to be generally recognized as safe under the conditions of the laser show's intended use. ILDA considers the chance of injury (hazardous effect or adverse biological change) from a laser show performed according to the Category A requirements, to be vanishingly small.

There are three main goals: Providing comprehensive, easy-to-understand guidance for persons doing small-scale indoor laser shows.Working towards ANSI adoption of similar requirements, which in turn may lead to……FDA being able to relax variance requirements for shows that meet Category A-type requirements. Specifically, it may be possible for FDA to allow Category A-type shows to not need to apply for an FDA variance in advance. This makes it easier to do shows, while FDA still retains control over the safety of these shows. (If a show violates the Category A requirements, FDA can issue various punishments and fines just as they do today.)

Category A requirements include: A limit on laser power (currently 6 watts in the draft version); no unterminated beams; all termination points must be visible to the Laser Operator and/or Laser Spotter(s); no human exposure to light from Class 3B or 4 lasers; continuous monitoring of all beam paths, locations and termination points during laser operation; advance consideration of potential problems and how to mitigate them; keeping a log of laser usage; required training for the Category A Laser Safety Officer and Laser Operator; and required training or instruction for Laser Spotters and Laser Personnel. The Category A Laser Safety Officer shall take an in-person or online laser safety course and shall pass a test prior to operating a Category A Laser Show.

If a laser show conforms to the ILDA Category A Laser Show Standard, ILDA will not object to the show, regardless of whether it meets governmental reporting requirements such as having a variance.

Also discussed is an option for FDA to require all shows to be video recorded, with the video kept for 1 year. If there is a problem with a show or an operator, FDA can “pull the tapes” to review the footage. If a show operator does not have video, that is evidence of violating the Category A-type requirements and a fine or other punishment can be issued. In this way, the video is like an always-available inspector.
Not just lasers - LEDs are now hazardous
Authors: Leon Nathaniel , Wohlstein Scott
Published: November 2024

High Brightness LEDs (and other incoherent Photonic sources) are becoming a substitute for lasers because of lower regulatory restrictions for many applications. This is most true in applications where coherency is not a specific operational requirement. Some LEDs that have higher drive currents put out thousands, if not tens of thousands of lumens. Some use super-radiance or super-luminescent architecture and are able to illuminate large areas efficiently with small light fixtures, These LEDs are not wholly incoherent since they have a relatively narrow band of wavelengths, typically in the tens of nanometers instead of less than 10 nanometers associated with most lasers. The hazards of measured irradiances more than 10 mW/cm^2 include temporary flash blindness, chronic fatigue, and the possibility of sunburn damage when operating in the UV range.

This paper presents real-world applications that LSOs and other photonics safety professionals need to consider when working with high-output Photonics-based devices and systems, establishing the proper engineering controls, administrative controls, and personal protective equipment, and bringing awareness to the increasing level of integration and use.
Use and misuse of lasers at protests
Authors: Murphy Patrick
Published: November 2024

Laser pointers, and more powerful handheld lasers, have been used at protests as early as 2008. In the past few years usage has escalated dramatically, with lasers at protests in Chile, Hong Kong and the United States making worldwide news.

Uses include intentionally interfering with law enforcement officers and cameras, and to visually draw attention in a manner similar to waving signs and banners.

Usage to interfere has resulted in numerous claims of eye injury to law enforcement officers. Many of these claims appear to reference flashblindness/afterimage type temporary effects. There have been a few claims of officers with serious and/or permanent eye injury but these have not been substantiated.

To counter the eye injury potential, and the vision-blocking effects, police can use protective visor strips or eyewear. This has been shown to reduce the use of lasers against officers.

Restrictions or a ban on laser pointer possession or use by the general public probably will not help, at least in the near term. For example, restrictions in Australia and New Zealand intended to bring down the rate of aiming lasers at aircraft did not work; the rates in both countries actually went up for years after the bans.

With respect to all types of eye injuries at protests, there have been hundreds of cases where protesters had serious eye injuries and blindings due to law enforcement use of rubber bullets and lead pellets -- far outstripping the few claimed cases of serious eye injuries to officers caused by lasers.
Laser scanning applications and measurement conditions
Authors: Piok Thomas , Walser Andreas M. , Hinderling Jürg
Published: November 2024

Traditional metrology devices using laser-based electronic distance meters were designed for single point measurements and scanning of stationary scenes. Newer devices are not mainly built for stationary use anymore. They are usually moved across the scenes like automotive LiDAR sensors. These mobile scanning systems often incorporate multiple laser beams or flash illumination combined with image-based detectors. The differences in design and in the application the devices are made for are illustrated showing some representative Leica Geosystems / Hexagon products.

One important part within the product safety evaluation of these LiDAR systems is the laser safety standard IEC-60825 series. The accessible emission (AE) and the accessible emission limit (AEL) have to be evaluated. Those values are paired and linked together with the measurement conditions defined by the standard with the measurement apertures and the minimum evaluation distance. Especially for unregularly pulsed systems including extended source, one will end up with a complex analysis to find the most restrictive ratio between the accessible emission and the accessible emission limit which might not be at the minimum evaluation distance. In the current edition 3.0 of the IEC-60825-1 standard, the influence of measurement condition 1 for mobile scanning devices does not have to be considered for a laser source with a time-varying origin compared to a stationary frame. In this proceeding, possible limitations of this exception of measurement condition 1 are discussed.
Physicians requiring laser privileges in a hospital setting
Authors: Carvajal Luis
Published: November 2024

Objective: This presentation will focus on the Physicians requiring privileges to use lasers should first meet all institutional standards with respect to Board certification, specialty training, ethical character, good standing and judgment and have Laser Interventional privileges in the specialty before requesting laser privileges. Hospital privileges are and must remain the responsibility of the Medical Executive Committee and the Hospital Laser Safety Officer. The American Society for Laser Medicine and Surgery (ASLMS) Standards of Training for Physicians for the Use of Lasers in Medicine and Surgery recommends that an applicant for hospital or other institutional privileges should be familiar with the pertinent literature and should have completed a basic training program devoted to the principles of lasers, instrumentation, physiological effects and safety requirements. The initial program should include clinical applications of various wavelengths in the particular specialty field and hands-on practical sessions with lasers and their appropriate surgical or therapeutic delivery systems. A list of recommendations to comply with the ANSI Z136.3 – 2018 Standard, TJC standards, and CMS regulations will be discussed to help Health Care Facilities ensure that the laser user providers who use lasers at their facilities have the documented training and experience with the specific laser systems and applications before granting laser use privileges.
Interdisciplinary safety terms and principles for the industrial LSO
Authors: Paura Randy , Contrata Barbara Sams
Published: November 2024

The industrial laser safety officer does not work in isolation, but as part of a team that contributes through various disciplines to put into effect a facility's safety program for the safe use of lasers. To achieve regulatory compliance for the build of systems utilizing lasers and their safe use efficiently and successfully, the responsible LSO must understand a core level of safety terms that are in use by other disciplines, such as electrical controls, which may not necessarily be adequately defined in laser user safety standards.

Drawing from specific public domain sources widely accepted in the manufacturing sector, this paper and supporting technical guide provides the industrial LSO with a robust cross-section of core safety terms, enabling effective communication of principles and concepts to achieve the safety goals identified for a specific project or the safety policy in general of their organization. The guide has also been benchmarked against noted industrial consensus standards to ensure the information presented is complimentary and does not conflict.

The target audience for this technical guide is the international industrial/manufacturing community; the two main domains from which the various reference guides, documents, and standards are drawn from, are:

North America: USA: ANSI B11 Series, NFPA 79, OSHACanada: CCOHS, CSA, OHSA

Europe, International: IEC, ISO, EU-OSHAUN: WHO, ILO

All reference materials are noted, providing the LSO a convenient means to locate additional supporting information.

The baseline for this work is the “ISO/IEC Guide 51:2014 Safety aspects — Guidelines for their inclusion in standards” [1], which is directly and indirectly employed by the various ANSI, IEC, and ISO technical safety standards identified in the Appendix of this paper and the technical guide.

The goal of this technical guide is to facilitate succinct communication among industrial safety professionals and non-professionals in their pursuit to achieve Light Applied Safely, Efficiently and Reliably [2] in their place of work.
A review of the experimental data supporting the pulse correction factor, CP
Authors: Lund David
Published: November 2024

Laser safety guidelines are best based on experimental ED50 data obtained through dose-response measurements of laser-induced injury to ocular tissue and an understanding of the laser-tissue interaction mechanisms leading to injury. The form of CP, the pulse correction factor for repetitive-pulse exposure, has been based largely on data obtained by in-vivo exposure of NHP retina to collimated laser beams in studies performed from 35 to 50 years ago. In the past 20 years these data have been augmented by extended-source in-vivo exposures to NHP retina and by ex-vivo exposures to Bovine or Porcine retinal explants. This paper presents a review of these experimental data with the goal of improving understanding of the nature of CP.
Evaluation of potential eye hazard associated with viewing of continuous wave and pulsed light emissions from small exit pupil’s laser illuminated projectors
Authors: Strzelecki Wlodzimierz , Ilev Ilko
Published: November 2024

Laser Illuminated Projectors (LIPs) are laser products developed to project display images without the use of scanning with collimated laser beams. However, since LIPs produce extended source light emissions with increased optical radiant values, the LIP safety classification and evaluation is performed in compliance with the international lamp safety standard IEC 62471-5:2015 Photobiological safety of lamps and lamp systems - Image projectors. This standard specifies a measurement distance of 1 m for determination of Risk Groups (RGs). The existing literature [1,2] provides a justification for this less restrictive distance based on a perfectly uniform image profile, a Continuous Wave (CW) emission pattern, an 11 mrad angle of acceptance, and an exit pupil sources not smaller than 11 mrad for RG2 Risk Group. The present study examines in detail retinal thermal hazard for RG2 LIPs for CW for angular subtense of exit pupils in the range of 5 mrad ≤ α ≤ 11 mrad, which is addressed by the Table 1 in the CDRH Laser Notice 57 [3]. Furthermore, a comprehensive comparison analysis between pulse emissions criteria for LIPs with angular subtense of exit pupils smaller than 11 mrad for measurement distances 20 cm and 1 m is presented. Based on the performed multivariable eye hazard analysis, the study provides also a rational for potential revisions of IEC 62471-5 to address deficiencies identified in the presented standard measurements and classification procedures related to CW and pulsed light emissions from small exit pupil’s laser illuminated projectors.
Simulation of maximum dazzle exposure and nominal ocular dazzle distance model in virtual reality (VR)
Authors: Lovell Julie , McLin Leon , Kinerk Wesley , Rickman Mike , Hart Maximillian , Smith Peter , Garcia Paul , Arizpe Joseph , Hoffman Aaron
Published: November 2024

Laser pointers have become ubiquitous and laser exposure of pilots is now commonplace. The Air Force has plans for pilot training using VR. Our lab has developed models for Maximum Dazzle Exposure and Nominal Ocular Dazzle Distance based on human-use experiments measuring the visual effects of laser dazzle on human performance. The virtual laser dazzle effects/models are being validated against the human-use experiments by replicating the laboratory task and laser dazzle effect in VR. We have created a VR simulation of the experimental laboratory and task, along with virtual laser dazzle effects. The next step is to create validated virtual laser dazzle in a VR flight simulator. Since using real lasers is not practical in most situations, training, education, and development of tactics in response to laser exposure may be conducted in VR in the future. This presentation will review laser dazzle effects and the incorporation of laser dazzle in the VR world.
Use of backscatter radiation from the laser process to provide proactive laser safety guarding and provide process feedback control
Authors: Tyrer John , Jones Lewis , Wheatley Trevor
Published: November 2024

We report the use of backscatter sensors used to provide proactive laser safety protection as well as providing real-time process control potential in a laser welding process. Rather than use a single optical channel we have used multiple backscatter detectors each with a narrow bandwidth filter to examine the behaviour of backscatter in different spectral regions giving information concerning the state and stability of the laser process. As well as describing the stability of the laser process the backscatter also provides quantitative information concerning the absorption of the laser beam by the industrial process. Any rapid departure from this expected process condition can also be fed back to a laser safety management system to form the basis of a proactive control strategy to detect the onset of beam delivery failure and the possibility of an errant beam condition.

The proactive safety approach described here has significant technical and commercial advantages with regard to producing compact localised guarding systems which only need to provide protection from the errant laser by shutting down the process prior to the full laser beam escaping from its intended location. The protection system now need only provide protection from the laser using a time-based which is based on the shutdown response time of the sensor/management system. Here we seek to investigate the potential benefits and cost saving of the active sensing of the beam to reduce the unnecessary burden of excessive guarding as well as providing a useful laser welding process control system. Laser power sensor information defining the output at the laser aperture combined with backscatter detection from the irradiated component means that the laser safety management system is tracking the performance of the industrial process. Any significant departure from the expected outputs indicates a likely fault condition and the laser can be shut down immediately. Here we wish to define the next level of protection strategy as being proactive control stopping a hazardous situation from developing. Here we will provide results from a fibre laser welding installation using suitable multispectral backscatter detection for process control and a further laser safety management system which provides the necessary proactive laser safety control. This may have useful applications for the expanding use of handheld fibre laser processing systems which currently are proving difficult to adequately control with existing passive or active/reactive guarding strategies.
A retrospective review of incidents involving lasers across a large academic health system
Authors: Villalon Veronica , Robinson Nicole
Published: November 2024

A supportive safety climate where staff feel comfortable reporting incidents, including near-miss, enables safety and risk mitigation teams to investigate, identify root cause and ensure procedures are in place to help prevent the same from happening moving forward. At UCSF, the STOP for Safety framework has been developed to emphasize how individual actions and behaviors can play a role in preventing harm and promoting safety. A retrospective review of incidents involving lasers will be presented along with steps taken to promote a safe Environment of Care.
Bevezetés: a kutatási projekt és előzményei
Authors: Mester Zsolt
Published: November 2024

The initial hypothesis of our project was that the management of lithic raw material sources by prehistoric communities was influenced by natural, economic and cultural factors, and this complex interaction can best be examined in a time scale where significant climatic-environmental and economic-cultural changes took place. This problem is based on the palaeoethnological approach of the French lithic research and our previous experiences. At the early Upper Paleolithic site of Andornaktálya 1 (Bükk Mountains, Hungary), we found that Silesian flint (from Southern Poland) and obsidian (from Eastern Slovakia) were treated in the same way as local raw materials. Our field observations in Poland, Slovakia, Ukraine and Hungary have convinced us of how important it is to distinguish lithic raw material sources according to procurement, and what role geomorphological processes play in changing access.
A CONTRIBUIÇÃO DA ENFERMAGEM NO ENFRENTAMENTO DO TRABALHO INFANTIL
Authors: Corrêa Stéfany Caetano , Oliveira Nathália França de , Bezerra Sandrina Souza
Published: November 2024

O presente estudo se dedicou examinar a implementação das políticas, destinadas a atenção de crianças e adolescentes em situação de trabalho infantil apontando a relevância do papel da enfermagem e a colaboração interdisciplinar na abordagem, identificação e combate desse problema de exploração de crianças e adolescentes. O percurso metodológico do referido artigo consiste em um estudo descritivo, com abordagem qualitativa, de revisão narrativa como forma de desenhar os saberes científicos produzidos em dado assunto, materializando papéis pertinentes nas literaturas sobre o tema. Objetivou-se analisar as políticas de saúde na atenção integral de crianças e adolescentes em condição de trabalho, com destaque no papel do profissional de enfermagem na prevenção e luta contra o trabalho infantil, assim como também dos desafios na colaboração interdisciplinar para o enfrentamento do labor infantojuvenil. Resultados reforçam e destacam a necessidade do fortalecimento do conjunto de ações dentre os diversos setores e profissionais, visando a eficiência e eficácia na promoção das políticas de saúde, de prevenção e eliminação da mão-de-obra infantil, além da carência de ampliação no investimento em políticas públicas de saúde específicas.
Profundizando la democracia:
Authors: Eberhardt María Laura
Published: November 2024

Tema: El presente artículo realiza un estudio comparado desde la teoría y un análisis comentado, reflexivo, amplificador y crítico acerca del trabajo de Roberto Gargarella sobre la democracia inclusiva y los mecanismos participativos conocidos como: "mini-públicos", loterías y constituciones elaboradas por la ciudadanía. Objetivo: Se busca analizar en profundidad dicha obra, a fin de difundir y resaltar sus hallazgos, expresar los interrogantes que se abren a partir de su lectura, discutirlo desde otras perspectivas y añadir reflexiones sobre su propuesta de profundización democrática desde la incorporación de nuevos espacios institucionales para la deliberación inclusiva. Método: La metodología empleada es el estudio de caso en profundidad y el análisis comparado entre el caso y la teoría. Originalidad: Desde un profundo interés por la temática abordada por Gargarella en su trabajo, se aportan novedosas impresiones, interrogantes y proyecciones que el trabajo suscita cuando es abordado desde otras perspectivas teóricas y analíticas. Conclusiones: La obra de Gargarella aporta; no sin abrir paso a interrogantes, discusiones y polémicas; un importante estudio de una serie de experiencias concretas a partir de las cuáles, supone, es posible avanzar en el camino de, por un lado, facilitar la práctica del debate y la reflexión cívica, y, por el otro, habilitar la participación de toda la ciudadanía en los asuntos públicos.
CSER ON SUSTAINABILITY OF FINANCIAL PERFORMANCE: PERSPECTIVE ON INNOVATION AND FINANCIAL CONSTRAINTS
Authors: Rahmadhani Sari , Astohar Astohar , Praptitotini Mirna Dyah , Fadhila Zati Riska , Lestari Ida Ayu
Published: November 2024

Regulations around the world place a lot of emphasis on responsible investment policies and regulations, but not all companies accurately estimate environmental costs and benefits. The purpose of this study is to analyze the strategy of achieving financial performance that is taken into account from the corporate social and environmental responsibility (CSER) factor, which involves innovation and financial constraints of the company. This study uses a sample of companies in the basic and chemical sectors listed on the Indonesia Stock Exchange from 2019 to 2023. Although the results of the track analysis test show that CSER has no effect on sustainable financial performance, the findings prove the role of innovation that connects CSER to sustainable financial performance. The interaction of CSER and financial constraints weakens the relationship between CSER in improving sustainable financial performance. So that this study can be a strategy for industrial companies to carry out regulations that are environmentally and socially responsible through the development of innovations in accordance with technological developments and controlling the financial constraints faced.
HALAL FOOD SUPPLY CHAIN MANAGEMENT IN SMALL AND MEDIUM ENTERPRISES IN SURABAYA
Authors: Wahyuni Susi Tri , Pudjowati Juliani
Published: November 2024

This study aims to explore the implementation of Halal Food Supply Chain Management (HFSCM) in Small and Medium Enterprises (SMEs) in Surabaya to enhance efficiency and competitiveness. This research utilizes a qualitative approach with a case study method, where data are collected through semi-structured interviews, direct observations, and document analysis. The results show that the adoption of digital technology, government support, and collaboration between SMEs, certification bodies, and the government have a positive impact on the success of HFSCM implementation. However, SMEs still face challenges, such as limited access to modern technology and insufficient training. To overcome these challenges, the study recommends increasing digitalization, providing ongoing training, offering government subsidies and incentives, and strengthening cross-sector collaboration to ensure the sustainability and effectiveness of the halal supply chain. With these steps, SMEs in Surabaya are expected to compete both in the local and international markets.
Firefighters and mental health during COVID-19: A Malaysian study
Authors: Samuel Carlos , Che Mat Aliya Maisarah , Samsudin Khairilmizal , Kamarudin Ainul Husna , Azhari Mohd Wildan
Published: November 2024

The COVID-19 pandemic had an adverse impact on the mental health of frontline workers including firefighters. To better understand this occurrence, this cross-sectional study evaluated the prevalence of depression, anxiety, and stress among 105 operational team and elite team firefighters in Kota Bharu, Kelantan State, Malaysia before and after the pandemic. The Depression, Anxiety and Stress Scale-21 (DASS-21), a validated self-reporting survey tool, was used to assess symptoms of depression, anxiety, and stress among the survey respondents. Findings revealed that firefighters had an increased level of anxiety and depression during the post-pandemic period compared to the pre-pandemic period. However, there was a decrease in the stress levels (20%) reported by study participants. Respondents belonging to the operational team had a higher reported level of depression, anxiety, and stress than those from the elite team. This may be attributed the operational team being more exposed to the risk of COVID-19 infection on account of their routine and more voluminous workload. The findings of this study suggest that firefighters, in general, are at an increased risk of mental health problems as a result of the COVID-19 pandemic. Knowing this, it is important to consider these findings when addressing the prevention and management of mental health among firefighters. This includes providing additional support and devoting more resources to those who are most at risk for experiencing symptoms of mental health such as firefighters performing functions aligned with that of an operational team.
Adaptive sampling method for network traffic security monitoring based on queuing theory
Authors: Sosnowski Maciej , Wiśniewski Piotr
Published: November 2024

Present network monitoring systems need to cope with the ever-increasing amount of traffic in modern high-speed networks. These systems often perform sophisticated deep packet inspection (DPI) for anomaly detection, denial-of-service attacks detection and mitigation, intrusion detection and prevention, etc. Since DPI is resource-intensive, the monitoring devices are often not able to analyze all incoming traffic at link speeds. Consequently, sampling is employed to reduce the traffic volume and thus limit packet losses caused by resource exhaustion. Classical sampling methods select packets based on a fixed limiting parameter, regardless of the computational resource utilization of the monitoring device. This paper proposes a novel sampling approach for network traffic security monitoring that is based on an analytical model of the monitoring device. The model allows for testing adaptive sampling strategies that adjust the instantaneous sampling rate according to the input queue occupancy. The queue occupancy is used to drive the adaptation as it indicates the current relationship between available computational resources and the input traffic volume. Consequently, our approach maximizes the DPI ratio while simultaneously ensuring that the probability of packet loss due to resource exhaustion remains negligible. Analytical and simulation results are presented to demonstrate the impact of the proposed method on system parameters, along with a comparative studies.
Cross-Antenna Polyphase Interleaving and Inversion scheme to reduce the PAPR of MIMO-FBMC/OQAM system
Authors: Laabidi Mounira , Boualleguee Ridha
Published: November 2024

Filter Bank Multi-Carrier with Offset Quadrature Amplitude symbol mapping called as FBMC/OQAM is presented as a potential successor of Orthogonal Frequency Division Multiplexing OFDM. Combined with Multiple-Input Multiple- Output (MIMO), MIMO-FBMC/OQAM is a promising modulation scheme for high performance broadband wireless communications. However, one major drawback of MIMO-FBMC/OQAM is the high peak-to-average power ratio (PAPR) of the output signals. Latinovic et al. Proposed a PAPR reduction method called Polyphase Interleaving and Inversion (PII) for MIMOOFDM systems under the use of the space-frequency block coding (SFBC) [1]. In this investigation, we suggest two schemes called Cross Antenna Polyphase Interleaving and Inversion 1 and 2 (CAPII1/(CAPII2) PAPR reduction schemes for Space Frequency Block Coding MIMO-FBMC systems which consequently utilizes additional degrees of freedom by employing multiple antennas and generating more patterns leading to more signal candidates to transmit, while requiring a limited amount of side information. The simulation results show that both the proposed CAPII schemes experience remarkable gain in PAPR.
Extended Authentication Based on Geometric Patterns and Transformations
Authors: Krokosz Tomasz , Rykowski Jarogniew
Published: November 2024

Authentication by key is successfully applied in many cases. However, this simple approach raises several problems during contextual authentication, when the final decision depends not only on the knowledge of the key but also on some other independent parameters such as time, distance, values fetched from nearby internet of things (IoT) devices, etc. Such contextual parameters are usually considered an independent phase of the whole authentication process. In this paper, we propose a new method of extended authentication because, instead of using just keys, we also applied some mathematical formulas describing the context to be evaluated as a single cryptographic process.
Engineering and society – prospective remarks, with a focus on Portugal
Authors: De Castro Paulo Tavares
Published: November 2024

Engineering researchers and students dedicate most of their working time to the details of the fields they are advancing or studying. Since excessive focus on details may lead to loss of contact with the wider societal context, it is advisable to create opportunities for their exposure to ‘the wider picture’; the topics chosen for this presentation are of transversal interest and expected to provide food-for-thought for those willing to venture outside the strict borders of their discipline.
But first a disclaimer: I am not a professional forecaster neither a crystal ball reader, but just a Mechanical Engineer with a career of 40+ years as a researcher / professor in a field transversal to several disciplines and specialties – fracture and fatigue of materials and structures. As with every other researcher, early in my career I was mainly asked to participate in activities and panels within the boundaries of my own research but, as time went by, the scope of my activities was progressively enlarged, namely with membership of the board of Agência de Inovação - AdI (precursor of the present ANI) and involvement in several EU activities in fields as aeronautics, civil engineering, transportation but also innovation and higher education management.
Awareness of the past and curiosity about the future motivated my growing interest in the interplay between society and engineering – the societal context within which engineering takes place. Although many topics addressed here are general, details reflect the nationality and interests of the writer (Portuguese). The talk at EJIL 2022 briefly touches the following topics: Portugal, macroeconomics, inequality, innovation, skills, education, R&D, sustainability, future, and geopolitics.
PENGARUH FUNDAMENTAL MAKROEKONOMI DAN PERJANJIAN INDONESIAN-JAPAN ECONOMIC PARTNERSIP AGREEMENT TERHADAP INVESTASI JEPANG KE INDONESIA
Authors: Suarjaya I Made Wahyu , Karmini Ni Luh
Published: November 2024

Menurut BKPM selama 15 tahun Jepang menjadi investor terbesar kedua di Indonesia. Tujuan penelitian ini untuk mengetahui pengaruh fundamental makroekonomi yang terdiri atas inflasi di Indonesia, ekspor Indonesia ke Jepang, impor Indonesia dari Jepang, kurs dolar AS, serta perjanjian IJEPA terhadap investasi Jepang ke Indonesia. Analisis data pada penelitian ini menggunakan Analisis Regresi Linear Berganda. Sampel data dalam penelitian ini menggunakan data sekunder berupa data tahunan pada periode 1990-2022. Hasil analisis penelitian ini menyatakan bahwasannya variabel X secara simultan berpengaruh signifikan terhadap variabel investasi Jepang ke Indonesia. Impor dan kurs dolar AS berpengaruh positif dan signifikan terhadap investasi Jepang ke Indonesia, ekspor berpengaruh negatif dan signifikan terhadap investasi Jepang ke Indonesia, akan tetapi inflasi dan perjanjian IJEPA tidak berpengaruh signifikan terhadap investasi Jepang ke Indonesia. Implikasi dari penelitian ini adalah perlunya menjaga stabilitas fundamental makroekonomi dan optimalisasi perjanjian IJEPA dikarenakan memiliki dampak yang signfikan terhadap FDI. Serta, perlunya kajian kembali terkait isi dan bauran kebijakan yang menguntungkan IJEPA terhadap FDI.