bluuebunny/crossref_metadata_2025 huggingface dataset:
The Structural Relationships Between Parental Relationship, Friend Attachment, and Self-esteem that Affect Adolescent Internet Overdependence
Authors:   The Korean Society of Culture and Convergence, Lee Donguk
Published: January 2023

The purpose of this study is to examine the influence relationship and structure between parental relationship, friend attachment, and self-esteem on the Internet overdependence of adolescents, and to confirm the mediating effect of self-esteem. This study data was analyzed through a structural equation model using SPSS 26.0 and AMOS 28.0. First, it was found that adolescents' parental relationship and friend attachment had a positive effect on self-esteem, and that self-esteem had a negative effect on Internet overdependence. Second, parental relationship did not affect Internet overdependence, but had a negative effect on Internet overdependence by using self-esteem as a fully mediating effect. Third, friend attachment did not directly affect Internet overdependence, but had a negative effect on Internet overdependence by using self-esteem as a fully mediating effect. The results of this study can serve as basic data for establishing educational policies and developing programs that can prevent youth Internet overdependence.
The Effect of the Principal's Leadership Type on the Play Support Effectiveness of Early Childhood Teacher : Focused on the Mediating Effect of Early Childhood Teacher's Empowerment
Authors:   The Korean Society of Culture and Convergence, Kim Junghyun , Kim Hyesoon
Published: January 2023

This study attempted to investigate the mediating effect of early childhood teacher's empowerment in the effect of the principal's leadership type on the play support effectiveness of early childhood teachers. The subjects of this study included a total of 209 early childhood teachers. The collected data were frequency analysis, reliability analysis, descriptive statistical analysis, correlation analysis, and path analysis using SPSS 26.0 and AMOS 26.0 programs. As a major result, first, there was a significant positive correlation between the director's leadership, the empowerment of early childhood teachers, and the effectiveness of play support. Second, the director's directive leadership had a direct negative effect on early childhood teachers' sense of play support efficacy. Persuasive leadership had a direct effect on early childhood teachers' play support efficacy and an indirect effect through empowerment. Delegated leadership showed an indirect effect on early childhood teachers' sense of play support efficacy through the mediation of early childhood teachers' empowerment. In other words, the partial mediating effect of empowerment was shown in the effect of the director's persuasive leadership on the early childhood teacher's play support efficacy, and the full mediating effect of empowerment was shown in the effect of the delegated leadership on the early childhood teacher's play support efficacy. In conclusion, these results suggest that in order to increase the play support effectiveness of early childhood teachers, an approach effort is needed to understand that the role of early childhood teacher's empowerment varies for each type of leadership of the principal.
A Gender-based Approach to the Multilayer Story Structure and Character of the Drama
Authors:   The Korean Society of Culture and Convergence, Kim Arum
Published: January 2023

The  series is a disaster narrative text. Previous studies have a limitation in that they could not broadly approach the dynamics between characters in  because they focused only on a specific character called 'zombie'. Therefore, the starting point of this article is that existing research is reducing the interpretation spectrum of . Therefore, this article paid attention to the fact that  has a multi-layered narrative structure. The aspect of the plot was examined. And it was confirmed that the roles of female characters are limited compared to male characters. Through this article, it is hoped that by examining the narrative structure of  centered on characters, it will be possible to expand the scope of the existing interpretation of .
A Study on the Resolution of Psychological States According to Preference of Nail Art Users
Authors:   The Korean Society of Culture and Convergence, Park Sohyun , Kwon Kihan
Published: January 2023

The purpose of this article is to find out if there are psychological changes other than cosmetic reasons in choosing a preferred color and shape by visiting a recent nail art store. In previous studies, there were many studies that favored people according to their psychological state, but this study, on the other hand, intends to measure changes in psychological state according to their preferences. Through this, this study aims to find out whether the preference of nail art is acting as a psychological relief medium. As a result of this study, if psychological resolution does not occur, it can not deviate from the main purpose of simple cosmetic. Conversely, if psychological resolution occurs, it means that nail art has an additional function of cosmetic and psychological resolution. In the future, it will be possible to present a standard for diversifying products by suggesting colors and shapes that are helpful for psychological resolution.
Analysis and Implications of Trends in Lifelong Education Policies at Home and Abroad after COVID-19
Authors:   The Korean Society of Culture and Convergence, Shim Mija , Kim Chaejeong
Published: January 2023

The purpose of this study is to examine the overall trend of lifelong education after COVID-19 and major policies for lifelong education at home and abroad. we analyzed the cases of core policies and changes in lifelong education in Germany, the United States, the United Kingdom, and Japan. And the purpose of lifelong education in Korea and changes in the COVID situation were analyzed. Based on the research results, some suggestions for revitalizing lifelong education are as follows. First, it is inevitable to establish an online education system and infrastructure to support quality lifelong learning in response to the rapidly changing educational environment. Second, local fence activities for community lifelong education innovation should be activated and a lifelong learning ecosystem based on the network should be established. Third, customized programs for each life cycle emphasized in the lifelong education policy and support for free online education and training programs for the unemployed in preparation for an increase in the unemployment rate are also needed. Fourth, it is necessary to expand and operate public online lifelong learning to bridge the digital informatization gap and participate in lifelong learning for the socially vulnerable.
FARKLI YÜZEY İŞLEMLERİ UYGULANAN GÜNCEL CAD/CAM RESTORATİF MATERYALLERİ İLE REZİN SİMAN ARASINDAKİ BAĞLANMA DAYANIMININ İNCELENMESİ
Authors: TATAR Numan
Published: January 2023

Diş hekimliğinde hastaya uygulanan restorasyonların hasta ağzında uzun süre desimante olmadan kalması restorasyonun başarısı açısından önemli kriterler arasında yer almaktadır. Bu sebeple çalışmamızın amacı fırınlama işlemine gerek kalmadan hekim tarafından da masa başı parlatılabilen güncel CAD/CAM bloklarına uygulanan farklı yüzey işlemlerinin rezin siman ile olan bağlantısının incelenmesidir. Vita Enamic (V), Lava Ultimate (L) ve PEEK(P) bloklardan, kontrol (VC, LC, PC), HF asit (VHF, LHF, PHF), 50 µm Al2O3 tozu (VAl, Lal, PAl), 30 µm Silika kaplı Al2O3 tozu (VSi, LSi, PSi) yüzey işlemleri ile 2 mm kalınlığında 15’er adet (n=15) numune üretildi. Rezin siman uygulanan örneklere termal siklus ile yaşlandırma işlemi uygulandı. Sonrasında örneklere üniversal test cihazı ile makaslama bağlanma dayanımı testi uygulandı. Bağlanma kuvveti sonuçları istatistik programında değerlendirildi. Elde edilen bulgular incelendiği zaman uygulanan tüm yüzey işlemlerinin bağlanma değerlerini arttırdığı görülmüştür.Tüm gruplardaki en yüksek bağlanma değerlerinin silika kaplı Al2O3 tozu uygulanan numunelerde olduğu (VSi 17.2750±1.89167; LSi 18.0815±1.66664; PSi 14.8151±1.57730) görüldü. Lava Ultimate ve Vita Emamic gruplarına uygulanan HF asit’in bağlanma değerlerinin istatiksel olarak PEEK’e uygulanan HF asit grubundan yüksek olduğu görüldü (p˂0.05). Çalışmanın sonucunda CAD/CAM bloklarına uygulanan tüm yüzey işlemlerinin bağlantı değerlerini arttırdığı, en başarılı bağlantı değerinin silika kaplı Al2O3 tozu ile kumlama yüzey işleminde olduğu gözlemlenmiştir.
ЩОДО ВСТАНОВЛЕННЯ СУБ’ЄКТИВНИХ ОЗНАК КОЛАБОРАЦІЙНОЇ ДІЯЛЬНОСТІ (УЗАГАЛЬНЕННЯ МАТЕРІАЛІВ СУДОВОЇ ПРАКТИКИ)
Authors: Зайцев О. В. , Бодейко В. А.
Published: January 2023

Стаття присвячена аналізу суб’єктивних ознак складу кримінального правопорушення, передбаченого ст. 111-1 КК України, через аналіз вироків, що набрали законної сили (станом на 01 листопада 2022 року). Відповідно до відомостей Єдиного державного реєстру судових рішень, набули законної сили 89 обвинувальних вироків за ч. 1 ст. 111-1 КК України (93,7 %) та за ч. 4 ст. 111-1 КК України – 6 (6,3 %). Акцентована увага на формі вини при вчиненні колабораційних дій з урахуванням тесту диспозиції ст. 111-1 КК України, кримінальної правової доктрини та судової практики. Обґрунтовано необхідність встановлення виключно прямого умислу, про що необхідно вказувати у процесуальних документах. Зроблено висновок про фактичне ігнорування судами з’ясування мотиву та мети вчинення колабораційної діяльності. При тому встановлено, що мотиви та мета вчинюваних суб’єктами дій не мають корисливої спрямованості, а визначаються запереченням самого існування української державності й прагненням винної особи сприяти режиму окупації на території України. Приділено увагу ознакам суб’єкта колабораційної діяльності, звернуто увагу на необхідність доповнення ч. 4 ст. 111-1 КК України вказівкою на громадянство України в особи, що вчиняє цей злочин. З урахуванням матеріалів судової практики, надано характеристику колаборантів, з огляду на їхню стать, рід занять та наявність судимості. Встановлено, що в переважній більшості випадків суб’єктами кримінальних правопорушень, відповідальність за які передбачена чч. 1, 4 ст. 111-1 КК України, є чоловіки, що не мають офіційного місця працевлаштування. Задля досягнення мети покарання запропоновано змінити безальтернативну санкцію ч. 1 ст. 111-1 КК України.
ПРОЦЕСУАЛЬНІ ПЕРЕПОНИ ЗАСТОСУВАННЯ ПРИМУСОВОГО ЗАХОДУ МЕДИЧНОГО ХАРАКТЕРУ ЩОДО ОБМЕЖЕНО ОСУДНОГО
Authors: Навроцька В. В.
Published: January 2023

У статті констатовано, що вітчизняне законодавство в частині регламентації застосування примусових заходів медичного характеру відносно особи, яка вчинила кримінальне правопорушення в стані обмеженої осудності, є достатньо суперечливим. Зазначено, що по завершенні досудового розслідування стосовно обмежено осудного має бути складено обвинувальний акт згідно із загальними правилами, передбаченими Кримінальним процесуальним кодексом України. Обґрунтовано невідповідність чинного законодавства до тверджень окремих дослідників і практичних працівників з приводу того, що в такому процесуальному документі має бути вказівка на те, що на момент вчинення правопорушення особа не могла повною мірою усвідомлювати значення своїх дій та /чи керувати ними, а також з приводу того, що повинні бути посилання на докази (експертний висновок), які цей факт підтверджують. Зазначено, що лише констатація в обвинувальному акті того, що особа із психічним розладом вчинила кримінальне правопорушення, ще не означає, що до неї автоматично слід застосовувати примусовий захід медичного характеру. Указано, що під час надсилання до суду матеріалів кримінального провадження щодо обмежено осудної особи, прокурор за потреби повинен прямо клопотати перед судом про застосування до неї і покарання, і надання амбулаторної психіатричної допомоги в примусовому порядку (а не лише натякати на таку можливість). Причому клопотання про застосування примусового заходу медичного характеру цілком може бути однією зі складових обвинувального акту (а не подаватися самостійно, у вигляді окремого документа).
ПОНЯТТЯ ТА СУТНІСТЬ ЕЛЕКТРОННИХ (ЦИФРОВИХ) СЛІДІВ КРИМІНАЛЬНОГО ПРАВОПОРУШЕННЯ
Authors: Коваленко А. В.
Published: January 2023

Cтаття присвячена з’ясуванню сутності та формулюванню поняття електронних (цифрових) слідів кримінального правопорушення. Акцентовано, що розкриття й розслідування кримінальних правопорушень, учинених з використанням комп’ютерної техніки, потребує встановлення та фіксування дій, здійснених правопорушником та іншими особами з подібними приладами. Операції правопорушника з комп’ютерною технікою можливо відслідкувати за змінами комп’ютерних даних, що утворюються в пам’яті електронно-обчислювальних машин, котрі, своєю чергою, можна вважати специфічними електронними (цифровими) слідами кримінального правопорушення. Встановлено, що механізм утворення таких слідів пов’язаний зі зміною магнітно-електричних властивостей речовин у запам’ятовуючому пристрої електронно-обчислювального приладу внаслідок виконання заздалегідь закладених алгоритмів та введених користувачем команд. Електронні (цифрові) сліди кримінального правопорушення визначено як комп’ютерні дані, що утворилися або зазнали змін у запам’ятовувальних пристроях електронно-обчислювальної техніки внаслідок дій користувачів, пов’язаних із вчиненням кримінального правопорушення. На думку автора, названі сліди несуть інформацію про стан та результати роботи певної комп’ютерної системи; не можуть бути безпосередньо сприйняті органами відчуття людини та завжди потребують інтерпретації (перетворення у прийнятну для людини форму) з використанням комп’ютерної техніки; супроводжуються метаданими, тобто додатковою інформацією, що характеризує основні комп’ютерні дані; відповідають загальним ознакам документа в його криміналістичному розумінні; містять інформацію, структуровану й закодовану відповідно до певного формату; інформація, яку несуть такі сліди, у більшості випадків може бути повністю відтворена шляхом відображення (копіювання) відповідних комп’ютерних даних; електронні (цифрові) сліди не мають жорсткої прив’язки до носія комп’ютерних даних.
Do direito à negação: os desafios do acesso e permanência de estudantes na Educação de Jovens e Adultos
Authors: Carvalho Julita Lopes , Pinto Janille da Costa , Cunha Júnior Adenilson Souza
Published: January 2023

O artigo apresenta algumas reflexões sobre a evasão e a reprovação escolar de estudantes da Educação de Jovens e Adultos (EJA) da rede municipal de ensino de Itapetinga (BA). O objetivo do estudo foi o de compreender a realidade dessas ocorrências em 3 unidades escolares que ofertam essa modalidade de ensino, bem como conhecer os desafios e perspectivas que se colocam para efetivar uma educação significativa para esses sujeitos. O percurso metodológico da pesquisa foi orientado pela abordagem qualitativa-descritiva. Os dados produzidos foram interpretados e analisados com base em referencias teóricos como: Haddad e Di Pierro (2000), Santos (2003), Arroyo (2018), Oliveira (2018) e a legislação educacional vigente. Consideramos que os problemas enfrentados pelas instituições de ensino da EJA necessitam de uma efetiva intervenção política e pedagógica, com vistas à efetivação de um ensino que promova o cumprimento pleno dos direitos a educação de qualidade assegurados por leis aos sujeitos da EJA garantindo além do acesso, a sua permanência nas escolas.
The impact of health disorders on automated sensor measures and feed intake in lactating Holstein dairy cattle
Authors: Siberski-Cooper Cori J. , Mayes Mary S. , Gorden Patrick J. , Hayman Kristen , Hardie Lydia , Shonka-Martin Brittany N. , Koltes Dawn A. , Healey Mary , Goetz Brady M. , Baumgard Lance H. , Koltes James E.
Published: January 2023

Animal health and feed intake are closely interrelated, with the latter being an important indicator of an animal’s health status. Automated sensors for dairy cattle have been developed to detect changes in indicators of health, such as decreased rumination or activity. Previous studies have identified associations between sensor measurements and feed intake. Thus, the objective of this study was to determine if health disorders impact the associations identified between sensors and dry matter intake (DMI), and to measure the impact of health disorders on DMI. A total of 934 cows with health disorders (lameness, mastitis, and other), of which 57, 94, and 333 cows had observations for a rumen bolus and one of two ear tags, were analyzed to determine how health disorders impact the association of sensors with DMI. Eleven sensor measurements were collected across the three sensors, including total and point-in-time activity, rumination time, inner-ear temperature, rumen pH and rumen temperature. Associations of health disorders and sensor measures with DMI were evaluated when accounting for systematic effects (i.e., contemporary group, parity, and days in milk) and energy sinks accounted for in determination of feed efficiency (e.g., milk production, body weight and composition). In order to determine if inclusion of health disorders or sensor measures improved model fit, model AICs were assessed. Health disorders were significantly associated with all sensor measurements (P< 0.0001), with the direction of association dependent on sensor measure and health disorder. Moreover, DMI decreased with all health disorders, with larger impacts observed in animals in third and higher lactations. Numerous sensor measurements were associated with DMI, including when DMI was adjusted for energy sink variables and health. Inclusion of rumen bolus temperature, rumination or activity with health data reduced model AIC when evaluating DMI as the dependent variable. Some sensor measures, including measurements of activity, temperature and rumination, accounted for additional variation in feed intake when adjusted for health disorders. Results from the study indicate that feed intake and sensor measures are impacted by health disorders. These findings may have implications for use of sensors in genetic evaluations and precision feeding of dairy cattle.
Electrospun self-emulsifying core-shell nanofibers for effective delivery of paclitaxel
Authors: Ge Ruiliang , Ji Yuexin , Ding Yanfei , Huang Chang , He Hua , Yu Deng-Guang
Published: January 2023

The poor solubility of numerous drugs pose a long-existing challenge to the researchers in the fields of pharmaceutics, bioengineering and biotechnology. Many “top-down” and “bottom-up” nano fabrication methods have been exploited to provide solutions for this issue. In this study, a combination strategy of top-down process (electrospinning) and bottom-up (self-emulsifying) was demonstrated to be useful for enhancing the dissolution of a typical poorly water-soluble anticancer model drug (paclitaxel, PTX). With polyvinylpyrrolidone (PVP K90) as the filament-forming matrix and drug carrier, polyoxyethylene castor oil (PCO) as emulsifier, and triglyceride (TG) as oil phase, Both a single-fluid blending process and a coaxial process were utilized to prepare medicated nanofibers. Scanning electron microscope and transmission electron microscope (TEM) results clearly demonstrated the morphology and inner structures of the nanofibers. The lipid nanoparticles of emulsions after self-emulsification were also assessed through TEM. The encapsulation efficiency (EE) and in vitro dissolution tests demonstrated that the cores-shell nanofibers could provide a better self-emulsifying process int terms of a higher EE and a better drug sustained release profile. Meanwhile, an increase of sheath fluid rate could benefit an even better results, suggesting a clear process-property-performance relationship. The protocols reported here pave anew way for effective oral delivery of poorly water-soluble drug.
Processing renewable and waste-based feedstocks with fluid catalytic cracking: Impact on catalytic performance and considerations for improved catalyst design
Authors: Mastry Melissa Clough , Dorazio Lucas , Fu James C. , Gómez Juan Pedro , Sedano Sergio , Ail Snehesh S. , Castaldi Marco J. , Yilmaz Bilge
Published: January 2023

Refiners around the globe are either considering or are actively replacing a portion of their crude oil inputs originating from fossil sources with alternative sources, including recycled materials (plastics, urban waste, mixed solid waste) and renewable materials (bio-mass waste, vegetable oils). In this paper, we explore such replacement, specifically focusing on the fluid catalytic cracking (FCC) operation. Five pyrolysis oils, obtained from municipal solid waste (MSW) and biogenic material (olive stones/pits), were fully characterized and tested at 10% loading against a standard fluid catalytic cracking (FCC) vacuum gasoil (VGO) feed in a bench scale reactor using an industrially available fluid catalytic cracking catalyst based on ultrastable Y zeolite to simulate fluid catalytic cracking co-processing. Despite having unique feed properties, including high Conradson carbon (e.g., up to 19.41 wt%), water (e.g., up to 5.7 wt%), and contaminants (e.g., up to 227 ppm Cl) in some cases, the five pyrolysis oils gave similar yield patterns as vacuum gasoil. Gasoline was slightly (ca. 1 wt%) higher in all cases and LPG slightly (ca. 1 wt%) lower. Olefinicity in the LPG streams were unchanged, bottoms and light cycle oil (LCO) showed no significant changes, while dry gas was slightly (up to −0.2 wt%) lower. Coke selectivity was also unchanged (maximum −7.7 wt%, relatively), suggesting minimal to no heat balance concerns when co-processing in an industrial fluid catalytic cracking unit. The results demonstrate the applicability of municipal solid waste and biogenic originating pyrolysis oils into a refinery. A catalyst design concept is explored, based on higher rare Earth oxide exchange and/or utilization of ZSM-5 zeolite, that would further minimize the impacts of replacing fossil oils with pyrolysis oils, namely one that shifts the 1% higher gasoline into LPG.
Association of IFN-γ +874 A/T SNP and hypermethylation of the -53 CpG site with tuberculosis susceptibility
Authors: Álvarez Guadalupe Inés , Hernández Del Pino Rodrigo Emanuel , Barbero Angela María , Estermann Martín Andrés , Celano Josefina , Musella Rosa María , Palmero Domingo Juan , García Verónica Edith , Pasquinelli Virginia
Published: January 2023

Introduction

Tuberculosis (TB) is now the 2nd leading infectious killer after COVID-19 and the 13th leading cause of death worldwide. Moreover, TB is a lethal combination for HIV-patients. Th1 responses and particularly IFN-γ are crucial for immune protection against Mycobacterium tuberculosis infection. Many gene variants for IFNG that confer susceptibility to TB have been described in multiple ethnic populations. Likewise, some epigenetic modifications have been evaluated, being CpG methylation the major epigenetic mark that makes chromatin inaccessible to transcription factors, thus avoiding the initiation of IFNG transcription.

Methods

We evaluated both genetic and epigenetic changes involved in IFN-γ production and TB susceptibility in Argentine population. Amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) was performed for the IFN-γ +874 A/T polymorphism (rs2430561) genotyping in 199 healthy donors (HD) and 173 tuberculosis (TB) patients. IFN-γ levels from M. tuberculosis-stimulated PBMCs were measured by ELISA. The methylation status at the -53 CpG site of the IFNG promoter in individuals with latent infection (LTBI), TB and HD was determine by pyrosequencing.

Results

Using a case-control study, we found that A allele and, consequently, AA genotype were overrepresented in patients with active disease. Moreover, HD carrying T allele (AT or TT genotype) evidenced an augmented IFN-γ secretion compared to TB patients. Codominance was the genetic model that best fits our results according to the Akaike information criterion (AIC). In addition, increased methylation levels at the -53 CpG site in the IFN-γ promoter were observed in whole blood of patients with active TB compared to LTBI individuals.

Discussion

IFN-γ is regulated by genetic variants and epigenetic modifications during TB. Besides, AA genotype of the rs2430561 single nucleotide polymorphism could be considered as a potential TB susceptibility genetic biomarker in Argentina and the methylation of the -53 CpG site could result in a useful predictor of TB reactivation.
Spatial variation of strong ground motions in a heterogeneous soil site based on observation records from a dense array
Authors: Yang Qianli , Yu Ruifang , Jiang Peng , Chen Kexu
Published: January 2023

The difference in local sediment thickness and soil properties has a significant impact on the spatial variation mechanism of seismic ground motion in the engineering scale. Due to the scarcity of observation data of dense arrays, the existing theoretical studies are mostly developed by numerical simulation methods, including human factors and a large number of assumptions. In view of this, based on the multistation observation records of the Luxian MS 6.0 earthquake and Yibin MS 5.1 earthquake obtained using a Zigong dense array, the study quantitatively analyzes the spatial characteristics of ground motion in heterogeneous soil sites by integrating a theoretical model with numerical analysis. In this study, many popular approaches including root-mean-square acceleration, horizontal-to-vertical spectral ratio (HVSR) of microtremor and strong motion records, and lagged coherency are comprehensively utilized to make the conclusion accurate and reliable. The results show that local soil conditions could affect the attenuation of coherence function with distance. The station-pairs with similar HVSR characteristics generally present a higher coherence level when the difference of the interstation distance is less than 100 m. In addition, the coherency function between stations will be greatly reduced when the H/V spectral ratio characteristics differ greatly, which is also obvious in the low-frequency part below 5 Hz. Finally, a lagged coherency model that considers the influence of heterogeneous soil is constructed in this study. The model has a definite physical meaning and can better represent the spatial variation of ground motion at nonbedrock sites.
Automatic batch recognition of rock deformation areas based on image segmentation methods
Authors: Yuan Canming , Nie Wen , Li Qihang , Geng Jiabo , Dai Bibo , Gao Jiewang
Published: January 2023

Image recording and analysis is an important but time-consuming method for understanding the rock mechanics mechanism. In this paper, a method for automatic batch identification of rock deformation areas is proposed. We crop the original image to remove irrelevant background. And we use adaptive threshold segmentation, region growth segmentation and global threshold segmentation and combine the characteristics of the image to identify the rock deformation area. Finally, we use image morphology processing to make the recognition result more accurate. For validation, 359 images of the rock samples of the uniaxial compression test were quickly identified. The identification time was approximately 5′56.83′. The average relative error of the method in the X and Y directions is 10.88% and 8.60%, respectively. In addition, using the identification results and the stress-strain curve, it was found that the water content and initial crack length of rock increase, and the compressive strength decreases; the effect of the initial fracture inclination on the compressive strength of the rock is not obvious.
Initial teacher training: Validation of a competence reference framework for the training of mentor teachers/cooperating teachers
Authors: Baco Christophe , Derobertmasure Antoine , Bocquillon Marie , Demeuse Marc
Published: January 2023

Throughout the world, cooperating teachers are crucial for initial teacher training. This article proposes a double validation of a competence reference framework for the training of cooperating teachers. This validation is based on the one hand, on international literature and, on the other hand, on the analysis of the answers of 854 French-speaking Belgian cooperating teachers to a questionnaire on the ideal level of proficiency in the tasks inherent to their function. The results indicate a strong convergence between the proposed competence reference framework, the literature review and the opinion of the 854 cooperating teachers. This strong convergence shows the relevance of the proposed competence reference framework for the training of cooperating teachers in French-speaking Belgium and elsewhere.
Weaving the fabric of shared experience: Immigrant and refugee students engaged in visual Testimonio
Authors: Myers Aimée
Published: January 2023

Testimonio, collective narratives situated within our sociopolitical sphere, is a powerful tool that empowers students and moves them toward a space of collective agency. When multimodalities are added to this process, students can further expand their expression and agency. This article hopes to support educators who want to embed a visual testimonio pedagogy in their own classrooms by exploring ways a secondary teacher sought to develop a critical literacy curriculum with her immigrant students. This article explores the current social discourse on immigrant and migrant students, discusses the foundations of visual testimonio, and offers three tangible examples of classroom activities.
Acute effect of propranolol on resting energy expenditure in hyperthyroid patients
Authors: Senn Jaël Rut , Löliger Rahel Catherina , Fischer Jonas Gabriel William , Bur Fabienne , Maushart Claudia Irene , Betz Matthias Johannes
Published: January 2023

Objective

Hyperthyroidism is a common endocrine disorder which leads to higher resting energy expenditure (REE). Increased activity of brown adipose tissue (BAT) contributes to elevated REE in hyperthyroid patients. For rapid control of hyperthyroid symptoms, the non-selective β-blocker propranolol is widely used. While, long-term treatment with propranolol reduces REE it is currently unclear whether it can also acutely diminish REE.

Design

In the present prospective interventional trial we investigated the effect of propranolol on REE in hyperthyroid patients.

Methods

Nineteen patients with overt primary hyperthyroidism were recruited from the endocrine outpatient clinic. REE was measured by indirect calorimetry before and after an acute dose of 80mg propranolol and during a control period, respectively. Additionally, skin temperature was recorded at eleven predefined locations during each study visit, vital signes and heart rate (HR) were measured before and after administration of propranolol.

Results

Mean REE decreased slightly after acute administration of 80mg propranolol (p= 0.03) from 1639 ± 307 kcal/24h to 1594 ± 283 kcal/24h. During the control visit REE did not change significantly. HR correlated significantly with the level of free T3 (R2 = 0.38, p=0.029) free T4 (R2 = 0.39, p=0.026). HR decreased 81 ± 12 bpm to 67 ± 7.6 bpm 90 minutes after oral administration of propranolol (p<0.0001). Skin temperature did not change after propranolol intake.

Conclusions

In hyperthyroid patients a single dose of propranolol reduced heart rate substantially but REE diminished only marginally probably due to reduced myocardial energy consumption. Our data speak against a relevant contribution of BAT to the higher REE in hyperthyroidism.

Clinical trial registration

ClinicalTrials.gov, identifier (NCT03379181).
Association of childhood and adolescence obesity with incidence and mortality of adulthood cancers. A systematic review and meta-analysis
Authors: Mohammadian Khonsari Nami , Shahrestanaki Ehsan , Ehsani Amir , Asadi Sara , Sokoty Leily , Mohammadpoor Nami Sahar , Hakak-Zargar Benyamin , Qorbani Mostafa
Published: January 2023

Background

Prevalence and subsequent conditions of childhood and adolescent obesity are increasing. It has been seen that obesity in youth is associated with adulthood cancer. This systematic review and meta-analysis aimed to determine the pooled association of childhood obesity with cancers in adulthood.

Methods

In this systematic review, international electronic databases such as Scopus, PubMed, Web of Science, and EMBASE were searched using relevant keywords until February 2022. All Cohort studies assessing the association of childhood and adolescent obesity (under 18 years old) with the incidence and mortality of all types of cancers were included. Two independent reviewers screened and carried out the quality assessment of included studies. Between-studies heterogeneity was assessed using the I squared and Cochran’s Q tests. Random/fixed-effect meta-analyses were used to pool the appropriate effect sizes (Hazard ratios (HR)).

Results

Overall, 46 studies were found to be relevant and were included in this study. Based on the random-effects model meta-analysis, childhood obesity increased the hazard of cancer incidence and mortality in adulthood by 33% (HR: 1.33, 95%CI (1.25, 1.41)) and by 28% (HR: 1.28, 95%CI (1.13, 1.42)), respectively. In the subgroups meta-analysis, the HR of childhood obesity and adulthood cancer incidence mortality in women was higher than in men (HR=1.39, 95%CI (1.25, 1.53) vs HR= 1.20, 95%CI (1.07, 1.32)) and (HR= 1.40, 95%CI (1.10, 1.69) vs HR=1.20, 95%CI (1.04, 1.36)) respectively.

Conclusion

This study found that obesity in childhood and adolescence is associated with a significant increase in the incidence and mortality of cancers in adulthood. Prevention of childhood obesity, in addition to its short-term beneficial effects, can reduce the burden of cancer in adulthood. The data sets of this study are present in the Tables of the current manuscript. Moreover this study was registered online in PROSPERO (registration code: CRD42022331958).

Systemic review registration

https://www.crd.york.ac.uk/Prospero/, identifier CRD42022331958.
RAAS inhibitors are associated with a better chance of surviving of inpatients with Covid-19 without a diagnosis of diabetes mellitus, compared with similar patients who did not require antihypertensive therapy or were treated with other antihypertensives
Authors: Khalangot Mykola , Sheichenko Nadiia , Gurianov Vitaly , Zakharchenko Tamara , Kravchenko Victor , Tronko Mykola
Published: January 2023

Purpose

The effect of renin-angiotensin-aldosterone system (RAAS) inhibitors in combination with COVID-19 and diabetes mellitus (DM) remains unknown. We assessed the risk of death in COVID-19 inpatients based on the presence or absence of DM, arterial hypertension (AH) and the use of RAAS inhibitors or other antihypertensives.

Methods

The results of treatment of all adult PCR-confirmed COVID-19 inpatients (n = 1097, women 63.9%) from 02/12/2020 to 07/01/2022 are presented. The presence of DM at the time of admission and the category of antihypertensive drugs during hospital stay were noted. Leaving the hospital due to recovery or death was considered as a treatment outcome. Multivariable logistic regression analysis was used to assess the risk of death. Patients with COVID-19 without AH were considered the reference group.

Results

DM was known in 150 of 1,097 patients with COVID-19 (13.7%). Mortality among DM inpatients was higher: 20.0% vs. 12.4% respectively (p=0.014). Male gender, age, fasting plasma glucose (FPG) and antihypertensives were independently associated with the risk of dying in patients without DM. In DM group such independent association was confirmed for FPG and treatment of AH. We found a reduction in the risk of death for COVID-19 inpatients without DM, who received RAAS inhibitors compared with the corresponding risk of normotensive inpatients, who did not receive antihypertensives: OR 0.22 (95% CI 0.07–0.72) adjusted for age, gender and FPG.

Conclusion

This result raises a question about the study of RAAS inhibitors effect in patients with Covid-19 without AH.
Prediction of MAFLD and NAFLD using different screening indexes: A cross-sectional study in U.S. adults
Authors: Peng Hongye , Pan Liang , Ran Simiao , Wang Miyuan , Huang Shuxia , Zhao Mo , Cao Zhengmin , Yao Ziang , Xu Lei , Yang Qing , Lv Wenliang
Published: January 2023

Introduction

Metabolic dysfunction-associated fatty liver disease (MAFLD), formerly known as non-alcoholic fatty liver disease (NAFLD), has become the most common chronic liver disease worldwide. We aimed to explore the gender-related association between nine indexes (BMI/WC/VAI/LAP/WHtR/TyG/TyG-BMI/TyG-WC/TyG-WHtR) and MAFLD/NAFLD and examine their diagnostic utility for these conditions.

Methods

Eligible participants were screened from the 2017-2018 cycle data of National Health and Nutrition Examination Survey (NHANES). Logistic regression and receiver operating characteristic (ROC) curve were used to assess the predictive performance of 9 indexes for MAFLD/NAFLD.

Results

Among the 809 eligible individuals, 478 had MAFLD and 499 had NAFLD. After adjusting for gender, age, ethnicity, FIPR and education level, positive associations with the risk of MAFLD/NAFLD were found for all the nine indexes. For female, TyG-WHtR presented the best performance in identifying MAFLD/NAFLD, with AUC of 0.845 (95% CI = 0.806-0.879) and 0.831 (95% CI = 0.791-0.867) respectively. For male, TyG-WC presented the best performance in identifying MAFLD/NAFLD, with AUC of 0.900 (95% CI = 0.867-0.927) and 0.855 (95% CI = 0.817-0.888) respectively.

Conclusion

BMI/WC/VAI/LAP/WHtR/TyG/TyG-BMI/TyG-WC/TyG-WHtR are important indexes to identify the risk of MAFLD and NAFLD.
Robust hybrid estimator for the state of charge of a lithium-ion battery
Authors: Awelewa Ayokunle , Omiloli Koto , Samuel Isaac , Olajube Ayobami , Popoola Olawale
Published: January 2023

The use of batteries for diverse energy storage applications is increasing, primarily because of their high energy density, and lithium-ion batteries (LiBs) are of particular significance in this regard. However, designing estimators that are robust to compute the state of charge (SOC) of these batteries in the presence of disturbance signals arising from different battery types remains a challenge. Hence, this paper presents a hybrid estimator that combines the extended Kalman filter (EKF) and sliding mode observer (SMO) via a switching function and tracking closed loop to achieve the qualities of noise cancellation and disturbance rejection. Hybridization was carried out in such a way that the inactive observer tracks the output of the used observer, simultaneously feeding back a zero-sum signal to the input gain of the used observer. The results obtained show that noise filtering is preserved at a convergence time of .01 s. Also, the state of charge estimation interval improves greatly from a range of [1, .93] and [.94, .84] obtained from the extended Kalman filter and sliding mode observer, respectively, to a range of [1, 0], in spite of the added disturbance signals from a lithium–nickel (INR 18650) battery type.
Optimization strategy and control technology of four-port SOP for distribution network with PV and BESS
Authors: Zhao Xingjian , Gao Xiongying , Zhou Xin , Gao Feng
Published: January 2023

This paper proposes a four-port soft open point (FSOP) with photovoltaic (PV) and battery energy storage systems (BESS) and its optimization strategy and control technology. Combining PV output, BESS characteristics, peak and valley electric charges, transformer operation efficiency, and soft open point (SOP) characteristics, the operation criteria under different operating conditions are formulated to improve the economy of the distribution network. In this paper, the power distribution optimization algorithm is established based on the transformer consumption characteristic model and the equal consumption incremental rate criterion to improve the power utilization rate and the system’s economy. The system doesn’t require an additional central controller and transmits control signals through the DC link of FSOP to realize the coordinated operation of all ports. The simulation results show that the system and the optimization strategy can realize the system’s coordinated operation and improve the distribution network’s economy.
An advanced short-circuit protection scheme for a bipolar DC microgrid
Authors: Kant Kamal , Ansari Salauddin , Gupta Om Hari
Published: January 2023

In order to provide quick and accurate fault detection in a DC microgrid, a new protection strategy is developed in this study. It is based on the multi-resolution analysis of travelling waves. The multi-resolution analysis of travelling waves is carried out using discrete wavelet transform (DWT). The dyadic filter bank theory is used to obtain the DWT coefficient of the voltage travelling wave. The energy of the DWT coefficient is then determined, and the fault will be identified if this energy content exceeds the predetermined threshold value. Initially, the efficacy of the proposed algorithm is verified on a 500 V ring-type bipolar DC microgrid test model, which is developed with MATLAB/Simulink environment. Then the results obtained were later validated with the real-time simulator Opal-RT. The various simulation results indicate that the proposed algorithm can successfully be implemented in both modes, i.e., grid-integrated and islanded. It can also provide protection against high resistance fault (HRF) up to 900 Ω in grid-integrated mode, and up to 1,300 Ω in islanded mode. The operating time of the proposed algorithm is also quite fast, i.e., 0.64 m.
Fast reconfiguration method of low-carbon distribution network based on convolutional neural network
Authors: Yu Yixiao , Yang Ming , Zhang Yumin , Ye Pingfeng , Ji Xingquan , Li Jingrui
Published: January 2023

The existing meta-heuristic distribution network reconfiguration (DNR) algorithm has excellent optimization ability through iteration. However, it is difficult to realize the large-scale fast calculation and online real-time response of DNR solution. In order to improve the security and low-carbon economy of distribution network, this paper proposes a fast reconfiguration method of distribution network based on convolutional neural network (CNN). Taking IEEE 33 system and 185 node system as examples, the effectiveness of the proposed method is verified. The reasons why the proposed method can achieve better results are as follows: By mining the historical data of distribution network, the corresponding relationship between load mode (LM) and its optimal topology is established. For a load mode in actual operation, the reconfiguration scheme can be quickly obtained according to the established corresponding relationship. Thus, iterative calculation is avoided and computational efficiency is improved. A multi-branch CNN model is established based on the distribution network structure, and an inception module is introduced into CNN to improve the ability of CNN to extract data features. This model can reduce the dependence on the specific distribution network structure and is easy to expand.
Integration of shapley additive explanations with random forest model for quantitative precipitation estimation of mesoscale convective systems
Authors: He Zheyu , Yang Yuanjian , Fang Runzhuo , Zhou Shaohui , Zhao Wenchuan , Bai Yingjie , Li Junsheng , Wang Bo
Published: January 2023

Mesoscale convective cloud systems have a small horizontal scale and a short lifetime, which brings great challenges to quantitative precipitation estimation (QPE) by satellite remote sensing. Combining machine learning models and geostationary satellite spectral information is an effective method for the QPE of mesoscale convective cloud, while the interpretability of machine learning model outputs remains unclear. In this study, based on Himawari-8 data, high-density automatic weather station observations, and reanalysis data over the North China Plain, a random forest (RF) machine learning model of satellite-based QPE was established and verified. The interpretation of the output of the RF model of satellite-based QPE was further explored by using the Shapley Additive Explanations (SHAP) algorithm. Results showed that the correlation coefficient between the predicted and observed precipitation intensity of the RF model was .64, with a root-mean-square error of .27 mm/h. The importance ranking obtained by SHAP model is completely consistent with the outputs of random forest importance function. This SHAP method can display the importance ranking of global features with positive/negative contribution values (e.g., current precipitation, column water vapor/black body temperature, cloud base height), and can visualize the marginal contribution values of local features under interaction. Therefore, combining the RF and SHAP methods provides a valuable way to interpret the output of machine learning models for satellite-based QPE, as well as an important basis for the selection of input variables for satellite-based QPE.
Research on the coopetition relationship and the development of city-industry integration of urban agglomeration under the effect of HSR
Authors: Tang Zhaoping , Bi Haosen , Sun Jianping , Xu Yun , Wang Zhenyu
Published: January 2023

High-speed rail has influenced the evolution of coopetition relationships among regional cities and promoted city-industry integration development within urban agglomerations. Still, the specific impact it brings needs further study. This paper aims to assess how opening high-speed railways affect the economic development and pattern of urban agglomerations along the route under the perspective of city-industry integration, and the mechanism of action of urban agglomerations’ coopetition relationships. The study is based on panel data from prefecture-level cities in Jiangxi Province, China, from 2014 to 2018. Through constructing an evaluation model of the degree of city-industry integration and an improved city economic linkage gravity model, we study the changes in the amount of economic linkage and affiliation of cities in Jiangxi Province after the opening of high-speed rail, which can analyze the changes in the structure and interconnectedness of each urban agglomeration. At the same time, an econometric model of the coopetition relationship of urban agglomerations is proposed to study the impact of high-speed rail on the economic cooperation of cities along the route in combination with the city-industry integration. The results show that 1) there are pronounced differences in the level of city-industry integration development of cities along the high-speed railway in Jiangxi Province, and the phenomenon is significantly improved by the improvement of inter-city economic links after the opening of the high-speed railway; 2) When cities enhance their fixed investment (FI) and labor force growth (LG), it has a significant promotion effect on their development, but will have a suppressing effect on other cities’ city-industry integration, while when enhancing industrial concentration and human capital mobility, it can make the city-industry integration development of each city achieve a win-win situation; 3) The opening of high-speed rail enhances the economic ties of cities along the route and the radiation capacity of the original central cities, which is conducive to the formation of new central cities while improving the weak economic ties between urban agglomerations due to their geographical locations. This study proposes some conclusions and suggestions to provide research support for theories related to city-industry integration and policies related to urban agglomeration competition and cooperation under the high-speed rail effect.