bluuebunny/crossref_metadata_2025 huggingface dataset:
Appropriate Image Selection With Virtual Reality in Vestibular Rehabilitation: Cross-sectional Study
Authors: Ersin Kerem , Gürlek Emre , Güler Hakan , Kalaycık Ertugay Çiğdem , Şerbetçioğlu Mustafa Bülent
Published: April 2023

Background

While vestibular rehabilitation with virtual reality (VR) is becoming more popular every day, the disadvantages of this method are not yet clear.

Objective

The aim of this study is to examine the effect of the image to be used in vestibular rehabilitation with VR on the systems that provide body posture.

Methods

The study was carried out with 36 participants (18 women and 18 men) aged 18 to 30 years. To assess balance control components separately, a sensory organization test was administered to the participants in the presence of stressful and relaxing environment images with VR technology. The State-Trait Anxiety Inventory survey was also used to measure the stress values in the created environments.

Results

The State-Trait Anxiety Inventory survey revealed that while stressful videos significantly increased stress, relaxing videos reduced stress. Among measurements obtained in the presence of VR, significant decreases were observed mostly in the visual system data. A significant increase in vestibular system data (P=.01) was observed with a decrease in visual system data (P<.001) when the relaxing image was presented. Additionally, there was a significant difference in the somatosensory (P=.001), composite (P=.002), and visual system (P<.001) data in the presence of stressful videos.

Conclusions

Although the use of a VR system for vestibular rehabilitation is relatively new, no extant studies have examined how the image type used in VR can affect the integration of visual system data. Therefore, this study is unique in terms of showing the effects of the stress created by the change in the type of the image used in VR. When VR technology is used for therapeutic vestibular rehabilitation for patients whose balance disorder is due to the vestibular system, stress-free videos should be used. However, the use of stressful videos in VR technology will be beneficial in the rehabilitation of those with balance disorders due to the somatosensory system.
Consumers’ Needs for Laboratory Results Portals: Questionnaire Study
Authors: Monkman Helen , Griffith Janessa , MacDonald Leah , Lesselroth Blake
Published: April 2023

Background

Over the last decade, there has been an increase in the number of health care consumers (ie, patients, citizens, and laypeople) with access to their laboratory results through portals. However, many portals are not designed with the consumer in mind, which can limit communication effectiveness and consumer empowerment.

Objective

We aimed to study design facilitators and barriers affecting consumer use of a laboratory results portal. We sought to identify modifiable design attributes to inform future interface specifications and improve patient safety.

Methods

A web-based questionnaire with open- and closed-ended items was distributed to consumers in British Columbia, Canada. Open-ended items with affinity diagramming and closed-ended questions with descriptive statistics were analyzed.

Results

Participants (N=30) preferred reviewing their laboratory results through portals rather than waiting to see their provider. However, respondents were critical of the interface design (ie, interface usability, information completeness, and display clarity). Scores suggest there are display issues impacting communication that require urgent attention.

Conclusions

There are modifiable usability, content, and display issues associated with laboratory results portals that, if addressed, could arguably improve communication effectiveness, patient empowerment, and health care safety.
Adaptation of ACTivate Your Wellbeing, a Digital Health and Well-being Program for Young Persons: Co-design Approach (Preprint)
Authors: Brown Menna , Lord Emily , John Ann
Published: April 2023

BACKGROUND

ACTivate your wellbeing is a digital health and well-being program designed to support and encourage positive lifestyle behavior change. The website includes 5 lifestyle behavior change modules and a 12-week well-being intervention based on acceptance and commitment therapy. It was timely to adapt the resource for a new audience in the wake of the COVID-19 pandemic. Young persons’ mental health needs have increased substantially, and lifestyle behaviors play a critical role in both mental and physical health statuses.

OBJECTIVE

This study aimed to adapt an existing health and well-being website for use by young persons aged 16 to 24 years.

METHODS

A 3-staged participatory, co-design approach was adopted. The participants reviewed the existing program and provided feedback (stage 1) before cocreating new content (stage 2). Finally, the updated program underwent formative evaluation (stage 3). Two groups were created: one had access for 3 weeks and the other could self-select their study duration. The options were 3 weeks, 60 days, or 90 days. Outcome measures were the Warwick and Edinburgh Mental Well-being Scale, 4-item Patient Health Questionnaire, and Acceptance and Action Questionnaire version 2.

RESULTS

Stage 1 identified that the website was appealing to the new audience (19/24, 79%), and the 3 web-based focus group discussions explored data from the written review in more depth to identify and clarify the main areas for update and adaptation. Overall, 3 themes were developed, and the data informed the creation of 6 tasks for use in 5 web-based co-design workshops. Stage 2 led to the cocreation of 36 outputs, including a new name, new content, scenarios, images, and a new user dashboard, which included streaks and an updated color scheme. After the website update program was completed, 40 participants registered to use the website for formative evaluation (stage 3). Data analysis revealed differences in engagement, completion, and mean well-being after intervention between the 2 groups. The completion rate was 68% in the 3-week duration group, and well-being scores improved after intervention.

CONCLUSIONS

Young persons engaged actively with the participatory design process. The participants discussed the updates they desired during the web-based discussions, which worked well via Zoom (Zoom Video Communications Inc) when small groups were used. The participants easily cocreated new content during the web-based co-design workshops. The web-based format enabled a range of participants to take part, share their ideas, search for images, and design digital content creatively together. The Zoom software enabled screen sharing and collaborative whiteboard use, which helped the cocreation process. The formative evaluation suggested that younger users who engage more with the website for a shorter duration may benefit more.
Sensa Mobile App for Managing Stress, Anxiety, and Depression Symptoms: Pilot Cohort Study (Preprint)
Authors: Valinskas Sarunas , Nakrys Marius , Aleknavicius Kasparas , Jonusas Justinas
Published: April 2023

BACKGROUND

An increase in depression, anxiety, and stress symptoms worldwide, attributed to the COVID-19 pandemic, has been reported. If not treated, it may negatively affect a person's everyday life by altering physical and social well-being and productivity and increasing expenditure on health care. Cognitive behavioral therapy (CBT)–based interventions are gaining popularity as a means to reduce stress and alleviate anxiety and depression symptoms. Moreover, CBT delivered through a mobile app has the same elements as traditional CBT training (eg, guided discovery). However, unlike conventional training, users of mobile apps are allowed to tailor their own experience at their own speed and schedule.

OBJECTIVE

This study aims to analyze Sensa users’ retrospective data and explore the dose-duration effect to find the optimal usage time when the user showed results.

METHODS

The study cohort comprised 381 consecutive community-based nonclinical users who started using Sensa between October 2021 and March 2022. All users included in the study took the Depression Anxiety Stress Scale-21 (DASS-21) assessment at least 2 times. Other parameters from the database containing all self-reported data were gender, number of active days, total time of use, and age. The primary outcome of the study was a change in the DASS-21 score. Statistical analyses were performed using GraphPad Prism (version 9, GraphPad Software). In addition, a logistic regression model was created to predict how the obtained independent parameters influenced the DASS-21 score.

RESULTS

The main finding of our study was that the majority of participants who started using Sensa were experiencing depression, anxiety, and stress symptoms (92.13%, 80.05%, and 87.93%, respectively). There was a statistically significant decrease of the DASS-21 subdomain scores after the use of the application (anxiety: mean 7.25, SD 4.03 vs mean 6.12, SD 4.00; P=.001; depression: mean 11.05, SD 4.26 vs mean 9.01, SD 4.77; P=.001; stress: mean 11.42, SD 3.44 vs mean 9.96, SD 3.65; P<.001). Finally, the logistic regression model showed that users who were using the app for more than 24 days and had at least 12 active days during that time had 3.463 (95% CI 1.142-11.93) and 2.644 (95% CI 1.024-7.127) times higher chances to reduce their DASS-21 subdomain scores of depression and anxiety, respectively.

CONCLUSIONS

Using the Sensa mobile app was related to decreased depression, anxiety, and stress symptoms.
Appropriate Image Selection With Virtual Reality in Vestibular Rehabilitation: Cross-sectional Study (Preprint)
Authors: Ersin Kerem , Gürlek Emre , Güler Hakan , Kalaycık Ertugay Çiğdem , Şerbetçioğlu Mustafa Bülent
Published: April 2023

BACKGROUND

While vestibular rehabilitation with virtual reality (VR) is becoming more popular every day, the disadvantages of this method are not yet clear.

OBJECTIVE

The aim of this study is to examine the effect of the image to be used in vestibular rehabilitation with VR on the systems that provide body posture.

METHODS

The study was carried out with 36 participants (18 women and 18 men) aged 18 to 30 years. To assess balance control components separately, a sensory organization test was administered to the participants in the presence of stressful and relaxing environment images with VR technology. The State-Trait Anxiety Inventory survey was also used to measure the stress values in the created environments.

RESULTS

The State-Trait Anxiety Inventory survey revealed that while stressful videos significantly increased stress, relaxing videos reduced stress. Among measurements obtained in the presence of VR, significant decreases were observed mostly in the visual system data. A significant increase in vestibular system data (P=.01) was observed with a decrease in visual system data (P<.001) when the relaxing image was presented. Additionally, there was a significant difference in the somatosensory (P=.001), composite (P=.002), and visual system (P<.001) data in the presence of stressful videos.

CONCLUSIONS

Although the use of a VR system for vestibular rehabilitation is relatively new, no extant studies have examined how the image type used in VR can affect the integration of visual system data. Therefore, this study is unique in terms of showing the effects of the stress created by the change in the type of the image used in VR. When VR technology is used for therapeutic vestibular rehabilitation for patients whose balance disorder is due to the vestibular system, stress-free videos should be used. However, the use of stressful videos in VR technology will be beneficial in the rehabilitation of those with balance disorders due to the somatosensory system.
Older Adults’ Experiences With Participation and eHealth in Care Coordination: Qualitative Interview Study in a Primary Care Setting (Preprint)
Authors: Hunsbedt Fjellså Hilde Marie , Husebø Anne Marie Lunde , Braut Harald , Mikkelsen Aslaug , Storm Marianne
Published: April 2023

BACKGROUND

Owing to the demographic changes in the elderly population worldwide, delivering coordinated care at home to multimorbid older adults is of great importance. Older adults living with multiple chronic conditions need information to manage and coordinate their care. eHealth can be effective for gaining sufficient information, communicating, and self-managing chronic conditions. However, incorporating older adults’ health preferences and ensuring active involvement remain challenging. More knowledge is needed to ensure successful participation and eHealth use in care coordination.

OBJECTIVE

This study aimed to explore multimorbid older adults’ experiences with participation and eHealth in care coordination with general practitioners (GPs) and district nurses (DNs).

METHODS

The study had a qualitative explorative approach. Data collection included semistructured interviews with 20 older adults with multimorbidity receiving primary care services from their GPs and DNs. The participants were included by their GPs or nurses at a local intermunicipal acute inpatient care unit. The data analysis was guided by systematic text condensation.

RESULTS

We identified 2 categories: (1) older adults in charge of and using eHealth in care coordination, and (2) older adults with a loss of control in care coordination. The first category describes how communication with GPs and DNs can facilitate participation, the importance of managing own medication, and how eHealth can support older adults’ information needs. The second category focuses on older adults who depend on guidance and help from their GPs and DNs to manage their health, describing how a lack of capacity and system support to be involved makes these adults lose control of their care coordination.

CONCLUSIONS

Being in charge of care coordination is important for older multimorbid adults. The results show that older adults are willing to use eHealth to be informed and to seek information, which ensures high levels of participation in care coordination. Future research should investigate how older adults can be involved in electronic information sharing with health care providers.
Increasing older adults’ social connectedness: Development and implementation of an online intervention (Preprint)
Authors: Zarling Amie , Kim Joseph , Russell Daniel , Cutrona Carolyn
Published: April 2023

UNSTRUCTURED

In this article, we will provide a rationale for an Acceptance & Commitment Therapy (ACT) approach to loneliness among older adults, drawing upon theories from the literature on adult development and aging, emotion regulation, and loneliness. We will provide a brief description of the ACT model of treatment and review the literature on investigations of ACT-related processes among older adults. Finally, important adaptations that need to be considered when using ACT with older adults will be discussed along with recommendations for future research regarding this approach to addressing loneliness among older adults.
МИКРОДИСПЛЕИ Si-­OLED ОТ КОМПАНИИ TOP DISPLAY OPTOELECTRONICS
Authors: Павленко А.
Published: April 2023

Основное преимущество микродисплеев – возможность экспонировать полноформатное изображение в микроформате без потери качества. Это требование актуально для окулярных и проекционных оптических систем различного типа: видоискателей; прицелов; приборов ночного видения; очков VR; пикопроекторов; микрохирургического оборудования и т. п.
Detection of Toxoplasmosis in Association with Autoimmune Thyroid Disease During Pregnancy in Duhok, Iraq
Authors: Murad Manal Adil , Eassa Souzan Hussain
Published: April 2023

Toxoplasma gondii is a protozoan parasite that is widely distributed in the human population and is responsible for corresponding global morbidity. Specifically, T. gondii causes toxoplasmosis, leading to miscarriage, stillbirth, and neural disorders. This parasite attacks different human organs and glands, such as the thyroid gland, and causes various corresponding health issues. Recently, studies have established a link between T. gondii and autoimmune thyroid diseases (AITD), which contributes to preterm delivery, miscarriage, low birth weight, and death. Therefore, the aim of this study was to detect the prevalence of toxoplasmosis and its association with AITD among pregnant women. A total of 180 blood samples were collected from pregnant women and examined using an enzyme-linked immunosorbent assay (ELISA). The patients were within the age range of 15–50 years old, and lived in Duhok City, Iraq; samples and clinical information was collected from August 2021 to February 2022. The corresponding blood samples were tested for anti-Toxoplasma IgG antibody, Toxoplasma IgG avidity, FT3, FT4, and TSH hormones, and TPO, Tg, and TSHR antibodies. Overall, our results showed that out of 180 pregnant women, 110 (61.1%) were seropositive for anti-Toxoplasma IgG antibody; specifically, 25 (22.7%) and 85 (77.3%) had recent and past infections, respectively. Approximately 54.4% (98) of the pregnant women had thyroid disorders; further, 22 (12.2%), 13 (7.2%), and 8 (4.4%) women had TPO, Tg, and TSHR antibodies, respectively. A total of 43 (23.8%) patients screened positive for AITD. Out of the 110 Toxoplasma IgG–positive women, 35 (31.8%) had AITD. The older women, rural residents, restaurant food consumers, and women with cat contact had relatively high infection rates. Toxoplasma seropositive women had more elevated autoantibodies than seronegative ones. In conclusion, this study demonstrated a high rate of toxoplasmosis and a corresponding association with thyroid hormones changes and AITD in pregnant women in Duhok, Iraq. Further, it is necessary to reduce overall infection rates through effective health and educational programs. Therefore, it is essential to measure Toxoplasma antibodies, screen for thyroid hormones and autoantibodies, and encourage gynecologist visits to reduce the risks to mothers and fetuses.
Severe hypoglycemia: Is it important to take into account the albuminuria value?
Authors: Rico-Fontalvo Jorge , Daza-Arnedo Rodrigo , Bohorquez-Rivero Jose , Restom-Arrieta Jose
Published: April 2023

The authors conclude that in patients with DM2, more advanced CKD was associated with greater insulin use, proposing different explanations of this relationship, however, we consider that in addition to these findings, within the study there are no patients using Dipeptidyl Peptidase-4 Inhibitors (DPP4i), probably by that time they were not being used yet. Therefore, patients with advanced CKD only had insulin as the only option, which explains a greater frequency of its use in this group of patients.
Análisis de cumplimiento y factores de reporte ambiental en empresas chilenas y peruanas
Authors: Hernández Pajares Julio
Published: April 2023

El desempeño e información ambiental son una práctica en las organizaciones con mayor impacto de sostenibilidad e influencia institucional. Esta investigación busca analizar el nivel de cumplimiento de los indicadores de desempeño ambiental de acuerdo con la Globla Reporting Initiative (GRI) y su relación con el tamaño, sector y cotización para empresas chilenas y peruanas que han publicado sus reportes voluntarios el año 2017. Esta investigación cuantitativa tiene un alcance descriptivo y relacional, aplica un análisis de contenido de los reportes para describir las variables y su relación. Los resultados señalan un mayor cumplimiento de indicadores de gestión de energía, agua, emisiones y residuos. El sector empresarial, tamaño y país de las empresas se relacionan con el nivel de cumplimiento.
Acción pública en contexto de crisis: Los fallos del estado en contexto covid–19
Authors: Yévenes Subiabre Ariel
Published: April 2023

En el presente ensayo se exploran ámbitos relacionados a las condiciones que han de darse para que las sociedades se conduzcan hacia decisiones que propicien asignaciones eficientes de recursos y alcanzar un escenario de bienestar, contextualizando estos análisis al escenario señalado de la Crisis COVID-19 en Chile.

Así, se analizan coyunturas que revelan la existencia de fallos de Estado que, analizados en contexto de la simultanea existencia de fallos de mercado, actúan como limitantes del bienestar social, proponiendo para ello instancias de articulación público privada para la construcción colectiva del bienestar social, en equilibrio público y privado, como también la importancia de fortalecer la descentralización, para propiciar la flexibilidad, agilidad y pertinencia de las políticas en el nivel territorial local.
Estimación del impacto de la Universidad del Bío-Bío sobre la producción de la Región del Biobío
Authors: Rowland López Fernando
Published: April 2023

La Universidad del Bío-Bío es una institución de educación superior chilena, de carácter estatal. No hay un estudio que mida el aporte económico que haga la Universidad del Bío-Bío y sus diferentes personas relacionadas en la Región del Biobío. Por ello, utilizando una aproximación de la matriz insumo-producto de la Región del Biobíopara el año 2012 estimo el aporte que hacen al producto de la Región del Biobíola Universidad y las personas relacionadas a ella. Encuentro que la Universidad aporta a la producción de la región tanto directa como indirectamente, totalizando para el año 2020 $483.049.705.595, con lo cual luego hacemos una serie de propuestas para las autoridades de la Universidad y de la educación de la región.
Actividad económica y empleo post pandemia
Authors: Méndez Briones Luis
Published: April 2023

Superada la fase más aguda de la pandemia, los países a lo largo del mundo están preocupados en cómo superar los daños económicos y las consecuencias en el empleo. La crisis nos dejó tres males que en conjunto son difíciles de superar, inflación, recesión y caídas en el empleo.

Ante el escenario descrito las economías van tratando de reactivarse, Estados Unidos y la zona europea con mejor éxito, China con mayores dificultades y aún con brotes de Covid no controlados. En América Latina con luces y sombras. Al respecto CEPAL pronostica a Chile como una de las economías de menor crecimiento para el año 2023.En tal escenario cabe la preguntarse cómo afectará el descenso de la actividad económica en el mercado de trabajo en los meses venideros? ¿Es posible hacer una estimación de su impacto en las tasas de ocupación y desempleo?
Barren plateaus in quantum tensor network optimization
Authors: Cervero Martín Enrique , Plekhanov Kirill , Lubasch Michael
Published: April 2023

We analyze the barren plateau phenomenon in the variational optimization of quantum circuits inspired by matrix product states (qMPS), tree tensor networks (qTTN), and the multiscale entanglement renormalization ansatz (qMERA). We consider as the cost function the expectation value of a Hamiltonian that is a sum of local terms. For randomly chosen variational parameters we show that the variance of the cost function gradient decreases exponentially with the distance of a Hamiltonian term from the canonical centre in the quantum tensor network. Therefore, as a function of qubit count, for qMPS most gradient variances decrease exponentially and for qTTN as well as qMERA they decrease polynomially. We also show that the calculation of these gradients is exponentially more efficient on a classical computer than on a quantum computer.
The role of cohomology in quantum computation with magic states
Authors: Raussendorf Robert , Okay Cihan , Zurel Michael , Feldmann Polina
Published: April 2023

A web of cohomological facts relates quantum error correction, measurement-based quantum computation, symmetry protected topological order and contextuality. Here we extend this web to quantum computation with magic states. In this computational scheme, the negativity of certain quasiprobability functions is an indicator for quantumness. However, when constructing quasiprobability functions to which this statement applies, a marked difference arises between the cases of even and odd local Hilbert space dimension. At a technical level, establishing negativity as an indicator of quantumness in quantum computation with magic states relies on two properties of the Wigner function: their covariance with respect to the Clifford group and positive representation of Pauli measurements. In odd dimension, Gross' Wigner function – an adaptation of the original Wigner function to odd-finite-dimensional Hilbert spaces – possesses these properties. In even dimension, Gross' Wigner function doesn't exist. Here we discuss the broader class of Wigner functions that, like Gross', are obtained from operator bases. We find that such Clifford-covariant Wigner functions do not exist in any even dimension, and furthermore, Pauli measurements cannot be positively represented by them in any even dimension whenever the number of qudits is n≥2. We establish that the obstructions to the existence of such Wigner functions are cohomological.
POR UM CANAL DE EDUCAÇÃO AMBIENTAL CRÍTICA PARA INICIANTES: A CONSTRUÇÃO DE UM PRODUTO EDUCACIONAL SOBRE VÍDEOS QUE TEM CONFLITO SOCIOAMBIENTAL COMO MOTE
Authors: Carvalho Cristiano Ramos de , Bomfim Alexandre Maia
Published: April 2023

A internet como um veículo de alcance em massa, se constitui como uma importante aliada em processos de divulgação de conhecimento. Para isso, dentre os diversos recursos existentes na internet, este artigo contará sobre o canal de Youtube “Educação Ambiental Crítica para Iniciantes”. Este tem por finalidade divulgar trabalhos sobre a Educação Ambiental Crítica (EA-Crítica) realizados por graduados e pós-graduados nas universidades. Por intermédio de entrevistas, pesquisadores da área de EA-Crítica demonstram seus trabalhos e influenciam professores e alunos a pensarem a Educação Ambiental de uma maneira mais humana e vinculada as dinâmicas da sociedade. O canal foi criado e juntamente com ele, dois vídeos. Um deles abordando a maneira como a EA-Crítica vem sendo trabalhada em sala de aula, pela experiência de pesquisadores da área, e o outro, utilizou-se de um conflito socioambiental na Baixada Fluminense, como uma maneira de inserir alunos do 1º ano do Ensino médio de uma escola localizada no Bairro do Centro no Município do Rio de Janeiro. A estratégia metodológica baseou-se na construção do canal do Youtube, fazendo com que professores e alunos compreendessem como abordar EA-Crítica na escola. Os vídeos criados e inseridos no canal são os primeiros de outros que serão colocados posteriormente.PALAVRAS-CHAVE: Educação Ambiental Crítica; Vídeos; Canal do Youtube.
DE ONDE VEM O DIA E A NOITE? UTILIZANDO O SOFTWARE STELLARIUM NO ENSINO DE ASTRONOMIA PARA OS ANOS INICIAIS DO ENSINO FUNDAMENTAL
Authors: Garratini Samara , Bordin Giulio Domenico , Bezerra Jr Arandi Ginane , Florczak Marcos Antonio
Published: April 2023

Este trabalho apresenta resultados de um projeto de pesquisa, relacionado a um mestrado profissional, que tem por objetivo o ensino de astronomia nas séries iniciais do Ensino Fundamental. Para isso, foram elaboradas sequências didáticas, baseadas no software Stellarium, para abordagem de conteúdos sugeridos pelos documentos oficiais, com ênfase na Base Nacional Comum Curricular (BNCC). Os dados da pesquisa consistem na coleta e análise de desenhos apresentados pelos alunos, referentes aos conteúdos estudados. Os resultados indicam a possibilidade de trabalhar conceitos de astronomia utilizando o Stellarium, a partir de uma metodologia baseada nos três momentos pedagógicos, de modo a que os alunos apresentem uma compreensão dos fenômenos básicos referentes à observação do céu e ao movimento dos astros.PALAVRAS-CHAVE: Ensino de Astronomia; TIC; Stellarium.
KOMBI DA CRIATIVIDADE! UM PASSEIO PELO INCENTIVO À FORMAÇÃO INICIAL DE PROFESSORES DE QUÍMICA COM FOCO NO DESENVOLVIMENTO DOS PENSAMENTOS DIVERGENTE E CONVERGENTE
Authors: Kundlatsch Aline , Zornoff Flávia , Fernandes Pauline H. , Cleophas Maria das Graças
Published: April 2023

A presente pesquisa exploratória, de natureza qualitativa do tipo participante, objetivou analisar a mobilização de habilidades e personalidades criativas por licenciandos em Química a partir de uma atividade envolvendo o pensamento divergente e convergente. A atividade foi desenvolvida em quatro momentos: i) apresentação das ministrantes e dos objetivos da atividade; ii) apresentação dos objetos e da justificativa de escolha pelo licenciandos; iii) desenvolvimento de tarefas com base nos fundamentos do pensamento divergente e convergente pelos licenciandos em grupo; e iv) diálogo final entre os participantes e as ministrantes da atividade proposta. Os dados, constituídos por meio da observação participante associada às notas de campo, questionários e análise documental, foram analisados à luz da Análise de Conteúdo por meio de duas categorias definidas previamente: habilidades criativas e características de personalidade criativa. Em nossos achados, constatamos indícios de que a atividade mobilizou as operações de pensamento divergente (fluência, flexibilidade, elaboração e originalidade) e de pensamento convergente (avaliação) bem como características de personalidade criativa.
RESOLUÇÃO E PROBLEMAS E EXPERIMENTAÇÃO IMPLEMENTADAS NO ENSINO DE CIÊNCIAS
Authors: Borba Fabiane Inês Menezes de Oliveira , Goi Mara Elisângela Jappe
Published: April 2023

Neste artigo são apresentados e discutidos parte dos resultados de uma pesquisa de mestrado que foi implementada a metodologia de Resolução de Problemas e a Experimentação no Ensino de Ciências em uma turma do 9º Ano do Ensino Fundamental da rede pública de ensino. Partindo de um problema inicial “Como a aprendizagem pode ser favorecida através da articulação das metodologias de Resolução de Problemas e Experimentação?” Procura-se responder os seguintes objetivos: verificar se a aprendizagem pode ser favorecida através da articulação das metodologias de Resolução de Problemas e Experimentação, buscando, assim, o aprimoramento dos processos de ensino e de aprendizagem e melhor compreensão dos conteúdos envolvidos; desenvolver habilidades cognitivas como construção de estratégias na Resolução de Problemas que se apresentarem na melhoria da compreensão dos conceitos científicos. Para atingir os objetivos propostos foram empregadas estratégias de Resolução de Problemas aliadas à Experimentação, no sentido de fomentar a pesquisa, leitura, investigação, construção coletiva de conhecimento e explicação de resultados obtidos. Neste manuscrito apresenta-se um recorte da dissertação, analisando os dados de dois questionários Likert. Para a análise foi empregada a ferramenta de análise de conteúdo de Bardin. Como resultado aponta-se que o uso de metodologias ativas pode garantir vantagens no aprendizado e pode auxiliar a capacidade do aluno de investigar e pesquisar.
Indirect Effect of Organizational Climate and Work Discipline on Employee Performance PT. Karya Lima Sahabat with Competence as a Mediator
Authors: Latunreng Wahyuddin , Hermawan Eric , Vikaliana Resista
Published: April 2023

For the purposes of investigating the performance of employees of PT. This time, the work of Lima Sahabat uses the independent variables of organizational climate, work discipline and competence. The investigation was carried out based on the indirect effect of organizational climate and work discipline on the performance of employees of PT. Karya Lima Sahabat with competence as a mediator. This indirect effect can be determined by determining the direct effect of organizational climate, work discipline and competence partially on the performance of employees of PT. Karya Lima Sahabat. The direct influence of organizational climate and work discipline partially on competence. The method used in this study is a quantitative method with a descriptive research type that describes the phenomenon being studied. For this purpose, questionnaires were distributed to 82 respondents who were employees of PT. Karya Lima Sahabat. Since the population is less than 100, a full sample is taken which is the same as the population. The regression equation work was carried out after the research data was tested with validity, reliability, normality, multicollinearity and heteroscedasticity tests. For simple regression the significant and positive effect is determined by the t-test, if tcount>ttable the regression equation is positive and significant. Whereas for multiple regression it is done by F-test, if Fcount>Ftable the multiple regression equation is significant and positive. The results of the study found that for all direct and indirect effects were significant and positive. The influence of organizational climate variables, work discipline and competence partially on the performance of employees of PT. Karya Lima Sahabat in percent is 23.3%, 25.7% and 27.0%. This effect value is true because all Fcount>Ftable(24,332, 27,715 and 29,604 > 3,57). The effect of organizational climate and work discipline partially on competency in percent is 35.3% and 63.7% of this effect is true because all Fcount>Ftable (43.552 and 140.415> 3.57).
Trust in exchange relations as social capital: Exploratory study of informal freight transport
Authors: Chafai Mouaad
Published: April 2023

As the philosopher Aristotle ascertained 2400 years past, human beings are by nature social creatures. Trust is a social norm that promotes the foundation of relationships among individuals, groups, and other components of a society. It is a by-product of religion, tradition, shared historical experience, and other types of cultural norms. Without trust, a country’s economy cannot perform well, because transaction costs would be too high. Through this study, we attempt to explore the reasons behind the dynamics of informal freight transport in Morocco under the paradox of the total absence of contracts and the increasing regulatory constraints of the sector. For this purpose, both individual interviews of the various informal transporters, and the interpretation methodology were used. The results reveal that the exchange relations of informal freight transport in Morocco, a priori non-contractual, are governed by a “social algorithm” based on interpersonal trust, in lieu of “blind” or “calculative” trust (Williamson, 1973), and which “the Daman” plays the role of a guarantor of the community order (Lkelma, Niya, etc.) rather than the judicial order (contracts, formality, etc.) (Fukuyama, 1995; Balambo & Livolsi, 2010).
A tri-loop low-dropout regulator with fast transient response based on flipped voltage follower
Authors: Wang Yi , Xu Yao hua , Lin Zeyuan , Bai Tao , Bai Na , Ma Junwu
Published: April 2023

This paper introduces a low-dropout regulator (LDO) with a quick
transient response to the load and no off-chip capacitance. The LDO in
this work powers digital modules in system-on-chip (SoC). It has low
output voltage variation and fast recovery time during load changes.
This paper proposed a novel tri-loop regulation method. The basic loop
is a conventional feedback loop for LDO to ensure output voltage
accuracy. The transient-enhanced loop is an improved design based on the
flipped voltage follower (FVF) that compensates for the effect of
removing off-chip capacitance on circuit stability. The introduced
Miller capacitor is used to form the AC-coupled loop, further ensuring
pole separation. It is worth mentioning that this paper introduces 2
FVFs for building basic loop and transient-enhanced loop. In addition, a
bandgap reference (BGR) with a self-starting circuit is designed in this
paper. The LDO described in this paper operates at 5V. The LDO is based
on a 0.18 um CMOS process. The dropping and rising voltages are merely
24.5 mV and 25 mV when the load current (I )
fluctuates between 1 and 50 mA. And the corresponding settling times are
2.5 us and 1.9 us respectively. The LDO described in this paper has an
output of 1.8 V and the load regulation (LDR) is as low as 6.68 uV/mA.
CHRONIC MYELOID LEUKEMIA IN CHILDREN AND YOUNG ADULTS IN TUNISIA
Authors: Kasdallah Manel , Ouahchi Ines , Mansouri Amira , Belloumi Dorra , Menif Samia
Published: April 2023

Chronic myeloid leukemia (CML) in childhood is rare accounting
for less than 10 % of all cases of CML and less than 3% of all
pediatric leukemia.
We conducted a retrospective study of
children and young adults (CYA) with CML diagnosed in Tunisia from June
2003 through December 2022. Diagnosis of CML was confirmed by RT-PCR for
all patients. Data were analyzed regarding epidemiological
characteristics, clinical presentations, molecular findings, treatment
response and side effects of Tyrosine kinase inhibitors (TKI).
Of the 1876 patients diagnosed with CML during this period 61
(3.25%) were under 18 years. 37 were male and 24 were female. The
chronic phase (CP) was the most common phase of CML seen in 43 patients.
While 9 patients were in accelerated phase (AP) and 9 had inaugural
blast crisis. Mean white blood cell count were 232 x10
/L. All patients were positive for bcr-abl
transcript : 32 patients had b2a2, 25 had b3a2. They were given oral
TKI. Only 5 patients underwent hematopoietic stem cell transplantation.
51 achieved complete hematologic remission on imatinib. 27 patients
achieved major molecular remission and 13 are currently maintaining a
bcr-abl ratio under 0.01% which corresponds to MR
,6
patients progressed under TKI within 7 months.
This
retrospective study represents the first series of CYA with CML in
Africa. Our data are comparable with the literature findings regarding
epidemiological characteristic, clinical presentations, and response to
TKI.
Mathematical Fundamentals of Spherical Kinematics of Plate Tectonics in Terms of Quaternions dedicated to Xavier Le Pichon on the occasion of the 50th anniversary of publication of “Plate Tectonics” (1973) with Jean Francheteau and Jean Bonnin
Authors: Schaeben Helmut , Kroner Uwe , Stephan Tobias
Published: April 2023

To be a quantitative and testable tectonic model, plate tectonics
requires spherical geometry and spherical kinematics in terms of finite
rotations conveniently parametrized by their angle and axis and
described by unit quaternions. In treatises on ’Plate Tectonics’
infinitesimal, instantaneous, and finite rotations, absolute and
relative rotations are said to be applied to model the motion of
tectonic plates. Even though these terms are strictly defined in
mathematics, they are often casually used in geosciences. Here their
definitions are recalled and clarified as well as the terms rotation,
orientation, and location on the sphere. For instance, infinitesimal
rotations refer to a mathematical limit, when the angle of rotation
converges to zero. Their rules do not apply to finite rotations, no
matter how small their finite angles of rotation are. Mathematical
approaches applying appropriate and feasible assumptions to model
spherical motion of tectonic plates over geological times of hundreds of
millions of years are derived including (i) sequences of incremental
finite rotations, (ii) sequences of accumulating successive
concatenations of finite rotations, (iii) continuous rotations in terms
of fully transient quaternions. The incremental and the accumulating
approach provide complementary views. While the relative Euler pole
appears to migrate in the latter, it appears fixed in the former. Path,
mean and instantaneous velocity of the migrating Euler pole are derived
as well as the angular and trajectoral velocity of the rotational motion
about it. The approaches are illustrated by a geological example with
actual data and a numerical yet geologically inspired example with
artificial data. The former revisits the three plates scenario with
stationary axes of two “absolute” rotations implying transient
“relative” rotations about a migrating Euler pole and employs a proper
plate circuit argument to determine them numerically without resuming to
approximations. The latter applies an involved interplay of incremental
and accumulating modeling inducing split-join cycles to approximate
sinusoidal trajectories as reported to record plates’ motion during the
Gondwana breakup.
The Impact of post COVID-19 syndrome in adolescents: A pilot study.
Authors: Y Marc El Khoury , Khoury Jane El , M May Skoury
Published: April 2023

Background: Post COVID-19 syndrome has emerged as a long-term
complication in adults and children, its effect on adolescents’
performance in school is not well studied. Methods: This is a
survey of children in grades 10-12 looking into the
physical/psychological impact of prolonged post COVID-19 symptoms on
school performance. Results: 32/54 students with a mean age of
16 years old had COVID-19. Two were hospitalized, 10 had symptoms
lasting more than 4 weeks. Commonly reported chronic symptoms were
fatigue and cough. Seven students quit sports, 8 had decrease in their
academic performance. Adolescents with a family history of long haulers
and those being infected more than once where more likely to develop
prolonged symptoms, quit sports and perform poorly in school. 3/14
(21%) reported not seeking help. Conclusion: Post COVID-19
syndrome is associated with decline in physical and mental performance
in school yet only 79% of adolescents will talk about it.
Technology support in exploring and identifying valuable elements of Kuldīga and Sēlpils Castles
Authors: Lapins Arturs
Published: April 2023

An upstanding archaeology study is an analytical study that involves a visual inspection of the site, with measurements and probing for various features. The information is compared to the visual and historical documentation relating to the site. Compiling the data obtained from historical sources, morphological materials, and stratigraphic probing, an integrated analysis of the tectonic and formal aspects of the site can be conducted. The research carried out at the site makes it possible to fill in gaps in archival materials and to provide additional details of lost historical architecture, its location, and the processes of building and rebuilding.
An architectural artistic study is conducted to determine the features of cultural, historical, and artistic value in the historic buildings. This is followed by a reasoned decision on the future development, status, and conservation options for the site.
Dataset for Water Body Detection Using Satellite SAR Images
Authors: Lee SeungJae , Oh Han
Published: April 2023

Satellite synthetic aperture radar (SAR) generates valid image information in all-weather. Thus, it can be effectively used for near real-time monitoring and damage analysis of flood areas which always involve overcast skies. Water body detection (WBD) using SAR images can be implemented by various techniques which discriminate electromagnetic characteristics between water and non-water areas. Especially, semantic segmentation exploiting artificial intelligence techniques can be used to develop a high-performance WBD model. To this end, Korea Aerospace Research Institute has built an WBD dataset using KOMPSAT-5 images. The dataset is currently available through the website, aihub.or.kr.
The Spatial Maps of Paddy Rice Yield over Northeast Asia Using COMS Geostationary Satellite and Reanalysis Meteorological Data
Authors: Jeong Seungtaek , Ko Jonghan , Yeom Jong-Min
Published: April 2023

This study estimated rice yield maps for Northeast Asia by using the Communication, Ocean and Meteorological satellite (COMS), Terra satellite, and Regional Data Assimilation and Prediction System (RDAPS) of the numerical model. The rice yield is highly useful in the study for crop information monitoring according to climate change as well as agriculture information, industry, and economy. This study produced rice yield maps for Northeast Asia including Korea, North Korea, Japan, and three northeastern provinces of China (Heilongjiang, Jilin, and Liaoning) from 2011 to 2017. The estimated spatial resolution of the rice yield maps in Northeast Asia is 500 m. The spatial observation range is 25 ° N ~ 47 ° N and 115 ° E ~ 145 ° E. In order to estimate rice yield, Remote Sensing-integrated Crop Model was employed in this study. The inputs of the RSCM are vegetation indices from Geostationary Ocean Color Imager (GOCI) of the COMS, solar radiation from Meteorological Imager of the COMS, Land Surface Water Index from the MODerate Resolution Imaging Spectroradiometer, and the temperature from the RDAPS were considered as input data. In particular, this study applied the Bidirectional Reflectance Distribution Function to the GOCI time-series images to calculate more improved vegetation indices by minimizing the directional error generated in the satellite observation location. These indices were very effective in the simulation of the rice yield.
A Preliminary Study to Determine the Hydrogen and Oxygen Isotopic Compositions of Natural and Bottled Water using High Sensitivity Isotope Ratio Mass Spectrometry
Authors: Song Hyeongseok , Jo Hui Je , Yang Dongwoo
Published: April 2023

In this study, we introduce the stable isotopic results of water using a recently installed high sensitivity isotope ratio mass spectrometry (HS-IRMS) system at the Korea Institute of Geoscience and Mineral Resources (KIGAM). As a result of analytical method validation through an international proficiency test, the 2020 WICO (Water Isotope Inter-Comparison), organized by the International Atomic Energy Agency, the KIGAM IRMS laboratory showed satisfactory performance. Furthermore, stable isotopic compositions of bottled water samples from South Korea were measured using the HS-IRMS with a high temperature conversion elemental analyzer, and this method was re-validated and confirmed by a comparison with stable isotope results obtained using an equilibrium method.
Expand and Renewal of Analyzed Satellite Image and Service
Authors: Yoon Young-Woong , Park Che-Won , Gong Sung-Hyun , Baek Won-Kyung , Jung Hyung-Sup
Published: April 2023

In this study, additional satellite analysis data in 2019, 2020, and 2021 were generated using Landsat-8 and Sentinel-2 satellite images. We additionally employed 19 types of satellite analysis methods, and generated totally 57 cases of satellite analysis data for three years. In addition, 34 types of satellite analysis data were updated using 2021 satellite data. In conclusion, a total of 91 cases of satellite analysis data were generated. The coverage of the study is the entire South Korea. The spatial resolution and the coordinate system were 30 m and UTM-K (EPSG: 5179) respectively. The products are provided as the entire South Korean and regional data, respectively. In addition, it is provided in three data types: ASCII, ArcGIS Grid, and GeoTIFF as same as last distribution. All satellite image analysis data can be downloaded free of charge from the Environmental Big Data website (www.bigdata-environment.kr), an environmental business big data platform.
Sea Surface CO2 Measurements on the R/V ISABU in the Northwestern Pacific in October 2019
Authors: Kang Nayeon , Cho Sosul , Lee Seon-Eun
Published: April 2023

The ocean takes up anthropogenic carbon dioxide (CO2) emitted into the atmosphere. The oceanic CO2 uptake shows seasonal and regional differences depending on numerous factors. We investigated distributions of atmospheric and sea surface CO2 in the Northwestern Pacific using the continuous underway pCO2 measuring system equipped on the Research Vessel ISABU of Korea Institute of Ocean Science and Technology. During the cruise, 3,597 data of seawater CO2 were obtained with sea surface temperature (SST), sea surface salinity (SSS), and GPS information for 13 days from October 4 to 17, 2019. Through the differences in CO2 concentrations between seawater and the atmosphere, we confirmed that CO2 concentrations of the sea surface were lower than those of the atmosphere in most of the surveyed areas. Higher SST and lower SSS were observed in the lower latitude area than 17°N in Philippine Sea, but latitudinal variation of CO2 concentration was not significant.
GEO-KOMPSAT-2A/2B AMI/GOCI-II/GEMS Data & Products
Authors: Huh Sungsik , Jin Kyoung-Wook
Published: April 2023

Two geostationary satellites developed by the Korea Aerospace Research Institute and currently in operation are the GEO-KOMPSAT-2A (GK-2A) and the GEO-KOMPSAT-2B (GK-2B). The main instruments mounted on these satellites are the Advanced Meteorological Imager (AMI), the Geostationary Ocean Color Imager (GOCI-II) and the Geostationary Environment Monitoring Spectrometer (GEMS). This paper briefly introduced the GK-2A and GK-2B programs including measurement principles and elements of the instruments. Moreover, the data formats, operational products, and applications are summarized.