bluuebunny/crossref_metadata_2025 huggingface dataset:
A systematic analysis of wide band gap semiconductor used in power electronics
Authors: Lu Shengbo
Published: May 2024

In recent years, the field of power electronics has witnessed a significant shift towards the adoption of wide bandgap (WBG) materials, marking a pivotal change in the design and efficiency of electronic devices. This paper presents a comprehensive systematic analysis of wide bandgap materials and their semiconductor applications in power electronics. Initially, the paper provides essential background information, elucidating the emerging importance of WBG materials in modern electronics. It then delves into various types of wide bandgap semiconductors, examining their fundamental operating principles and theoretical underpinnings. Subsequent sections of the paper highlight the advantages of using wide bandgap semiconductors, including their superior performance and efficiency benefits. The discussion extends to practical implementations, showcasing several existing applications of wide bandgap semiconductors in diverse power electronics scenarios. Additionally, this paper critically addresses the prevailing challenges and obstacles encountered in the application and manufacturing processes of these materials. Moreover, it offers insightful predictions about the future trajectory and potential advancements in wide bandgap device technology. The paper culminates with a concise conclusion summarizing the impact and prospects of wide bandgap devices in the realm of power electronics.
Advancements in CMOS image sensors for enhanced vehicle assistance technologies
Authors: Hu Yitao
Published: May 2024

The burgeoning adoption of new energy vehicles has precipitated a surge in advanced vehicular assistant technologies, encompassing systems such as assisted driving and parking. The efficacy of these technologies hinges critically on the selection of suitable image sensors, which are integral to fulfilling the stringent image quality requisites necessary for the implementation of these technologies. Predominantly, these assistant systems are reliant on sophisticated image processing techniques, necessitating high-quality images as a fundamental input for efficacious analysis and recognition. Currently, the Complementary Metal-Oxide-Semiconductor (CMOS) image sensor is predominantly employed in vehicular systems, a choice underpinned by its advantageous attributes such as resistance to interference, cost-effectiveness, and high degree of integration. This paper aims to elucidate the developmental trajectory and fundamental principles of CMOS technology and its application in image sensors. It delves into an analysis of the salient features of CMOS image sensors, especially in their application to parking assistance, autonomous driving support, and fatigue detection systems. Conclusively, the paper offers an exhaustive overview of the current state of CMOS image sensor development, alongside a projection of future trends and an exploration of the challenges that must be surmounted to advance this field further.
Automatic speech recognition technology: History, applications and improvements
Authors: Liang Qiyu
Published: May 2024

In todays world, automatic speech recognition(ASR) has been an important part of artificial intelligence. It has been recognized as an extremely difficult highly challenging high-tech topic. It mainly converts the vocabulary content in human speech into computer-readable input, which is generally understandable text content, and may also be binary encoding or character sequences. Since the 1950s, ASR has been continuously developing from simple systems for pronunciation of 10 English numbers to the rise of multiple frameworks and different neural networks. The process of ASR is constantly becoming diversified and specialized. Based on the analysis of existing literature, this article will briefly describe the history of speech recognition technology, the current development status of speech recognition, various applications in daily life and advanced areas, and methods for improvements. It indicates that nowadays automatic technology has become an essential part in peoples daily lives. Simple methods for eliminating echoes and noise to improve system performance and user experience are also an important part that should be considered in the use of ASR.
Comprehensive analysis on topologies for limiting leakage current in transformerless inverter
Authors: Li Hao
Published: May 2024

With the evolution of science and technology, human beings' demand for electric energy has increased rapidly. Traditional power generation methods such as using fossil fuel will result in serious greenhouse gases emitting, which leads to an intensification of the global greenhouse effect. Using clean energy to replace traditional power generation methods becomes urgent. As a reliable energy source, sunlight could continuously provide energy for human beings and Solar energy has accounted for a large proportion of new energy. Solar energy is converted into Direct Current (DC) by solar panels and the power transmitted from the power grid to factories and houses requires Alternating Current (AC), in this condition, inverters that could convert DC to AC are important components in photovoltaic (PV) systems. As the development of inverter technology gradually matures, inverters begin to develop with the characteristics of small, low-cost, and transformerless. This article introduces a common technical problem encountered in developing transformerless inverters-the generation of leakage current. Several different transformerless inverter topologies are compared to find reliable methods to limit leakage current, and some suggestions are raised for the future development of transformerless inverters.
Loss analysis and reduction strategy of GaN devices in high frequency buck converter
Authors: Wang Bingyao , Wu Hupeng , Pan Yufei , Li Hui , Li Guoqiang
Published: May 2024

In this paper, the loss analysis and reduction strategy of gallium nitride (GaN) devices in high frequency buck converter are studied. To solve this problem, this paper adopts the methods of establishing the loss model of GaN device, putting forward the guiding principle of reducing the loss theoretically and verifying the experiment.The main achievements of this paper include: Firstly, through analyzing the loss mechanism of GaN devices, it is found that the factors affecting the loss of GaN devices include switching frequency, current waveform, temperature, etc. Secondly, the loss model of GaN device is established, which can quantitatively analyze the loss of GaN device. Then, the guiding principles of reducing the loss are put forward theoretically, including optimizing the current path, choosing the appropriate switching frequency, adopting the correct driving technology, and carrying out the effective temperature management and thermal design. Finally, the effectiveness and feasibility of these strategies are verified by experiments.
Wine quality grade data analysis and prediction based on multiple machine learning algorithms
Authors: Zeng Chunzhang , Fang Jiaying , Yang Qi , Xiang Chunling , Zhao Zheming , Lei Yijian
Published: May 2024

With the continuous development of the wine industry, the study of wine grades has received more and more attention. Wine grade is one of the important indicators for assessing the quality of wine, which can reflect the characteristics of wine in terms of taste, aroma, colour and lustre, and can also guide consumers to make purchases. Therefore, the study of predicting wine grades is of great practical significance. In this paper, we first preprocess the data set, find out the outliers through box-and-line diagram and use the mean value to replace the outliers; secondly, we use Pearson correlation analysis to explore the correlation between the indicators of wine and the quality grade of grapes; lastly, by analysing the evaluation indexes of wine, we establish three machine learning models to predict the quality grade of wine. The experimental results show that the prediction accuracy of the three machine learning models for wine quality grade reaches about 60%, among which the random forest model has the best prediction effect, reaching 66.8%; the XGBoost model also has a better prediction effect, with an accuracy of 60.1%, and the decision tree model has a worse prediction effect, with an accuracy of 59.5%. By plotting the confusion matrix of predicted-actual values, it can be seen that the model performs better in predicting high grade wines but worse in predicting low grade wines. This study has certain reference value for the development of wine industry and consumers' purchase.
Design exploration of the status detection system for car-mounted catenary tension compensation device
Authors: Wang Xiaojing , Ouyang Caixiao
Published: May 2024

The tension compensation device is a critical component for maintaining constant parameters of the contact wire, such as tension, catenary height, and sag, in the overhead contact system. Its operational status directly affects the normal operation of the entire contact wire system. This paper provides a comprehensive review of existing tension compensation device state detection techniques and analyzes their shortcomings. By comparing with existing methods for monitoring cable tension, a vehicle-mounted contact wire tension compensation device state detection system based on the three-point bending method is proposed. This system can simultaneously monitor the operational status of the device at the line side and anchor section, issuing real-time warnings in case of abnormal device states and possessing significant application value. This study provides a reliable tool for railway operators to monitor the devices status and take timely maintenance and adjustment measures to ensure the normal operation of the contact wire system
Synergizing power electronics and laser detection: A future-oriented technological convergence
Authors: Cang Tianyu , Liu Chenyi , Tao Haiming
Published: May 2024

This study represents a pioneering exploration into the emerging intersection of power electronics and laser detection technologies, a field that holds tremendous promise for revolutionizing a wide range of applications from renewable energy to autonomous vehicles, by leveraging their unique synergies to drive unprecedented advancements in efficiency and precision. It begins with an exploration of the individual advancements in both fields, emphasizing the strides made in efficiency enhancements, control mechanisms, and range improvements. The discussion then transitions to the integration of these technologies, showcasing their combined system efficiencies and applications in contexts such as renewable energy systems, LIDAR in autonomous vehicles, and industrial laser cutting. Notable advancements, such as the use of advanced semiconductor materials and innovative control strategies, are examined. The paper also addresses the challenges faced by these technologies, including environmental susceptibility and complexity, while proposing future prospects. The conclusion synthesizes these insights, underscoring the pivotal role of this technological convergence in shaping the future of electrical engineering and photonics.
Navigating the future of urban environments: A comprehensive analysis of contemporary urban planning
Authors: Feng Yifan , Wang Zekun
Published: May 2024

This article presents an in-depth exploration of the evolving landscape of urban planning, delving into its historical roots, contemporary practices, and future prospects. It begins by tracing the historical evolution of urban planning, highlighting the transition from the industrial revolution's response to urbanization challenges to the post-WWII era's shift towards sustainable planning. The discussion then progresses to contemporary urban design principles, emphasizing human-centric design, the integration of nature, and the importance of urban resilience in the face of climate change. Furthermore, the article examines the future trends and challenges in urban planning, focusing on the rise of smart cities, the critical role of community engagement, and strategies for sustainable urban expansion. This comprehensive analysis aims to provide a nuanced understanding of the complex interplay between urban development, environmental sustainability, and technological innovation, offering insights into creating more livable, resilient, and inclusive urban spaces.
Design and component simulation study of a hydraulic razor clam seedling dispensing device
Authors: Xiong Yuke , Luan Yuhang , Liu Zibo , Yuan Xiang , Wang Yubao , Zhang Hanbing
Published: May 2024

Razor clams are a type of economically farmed shellfish widely cultivated in China's coastal areas. Currently, seedling dispersion is still done manually, which requires high labor intensity and incurs high costs. To address this issue, this paper designs a hydraulic razor clam seedling dispensing device and conducts simulation studies using Fluent software to investigate the effects of flow rate ratio q, area ratio m, and the diffusion angle of the diffusion tube on the pressure ratio h and efficiency . With the goal of optimizing seedling dispersion efficiency, the optimal parameters for the jet pump were determined. Under the conditions of a flow rate ratio of 0.03, an area ratio of 2, and a diffusion angle of 8, the simulated seedling dispersion efficiency was found to be 9.60%. A test bench was set up, and bench tests were conducted. The results showed that the actual measured efficiency of the device was 10.40%, with a deviation between the simulated and actual values of 8.33%. The simulation model established in this paper is essentially consistent with actual conditions, providing a reference for the design and improvement of hydraulic seedling dispensing devices.
Analysis of Costs Associated With Increased Length of Stay After Total Joint Arthroplasty at a Single Private Practice
Authors: Kohring Adam S. , Lutz Rex , Parikh Nihir , Hobbs John , Bridges Tiffany N. , Krueger Chad A.
Published: May 2024

Introduction:

As the demand for total hip arthroplasty (THA) and total knee arthroplasty (TKA) increases, so does the financial burden of these services. Despite efforts to optimize spending and bundled care payments, THA and TKA costs still need to be assessed. Our study explores the relationship between perioperative costs and length of stay (LOS) for THA and TKA.

Methods:

A total of 614 patients undergoing THA or TKA at a single private practice with LOS from zero to 3 days were identified. All patients were insured by private or Medicare Advantage insurance from a single provider. Primary outcomes included total costs and their relationship with LOS, classified into surgeon reimbursement, facility costs, and anesthesia costs. Secondary outcomes included readmission rates and discharge disposition. Analyses involved Student t-test, analysis of variance, and chi-square tests.

Results:

Longer LOS was associated with increased total, facility, and anesthesia costs. Costs for THA patients were stable except for reduced surgeon reimbursement with longer LOS. Patients undergoing TKA experienced an increase in facility costs with longer LOS. Total facility and anesthesia costs increased with LOS for Medicare Advantage patients, but surgeon reimbursement remained stable. Privately insured patients experienced higher total and facility costs but stable surgeon reimbursement and anesthesia costs regardless of LOS.

Conclusion:

Our study shows an increase in total cost with longer LOS, especially pronounced in privately insured patients. A notable reduction was observed in the surgeon reimbursement for Medicare Advantage patients with extended LOS. These findings underscore the need for efficient surgical practices and postoperative care strategies to optimize hospital stays and control costs.
Hybrid Power Generation: Experimental Investigation of PCM and TEG Integration with Photovoltaic Systems
Authors: Bandrehalli Chandrashekaraiah Manjesh , Nagappan Beemkumar , Devarajan Yuvarajan
Published: May 2024

Global warming and escalating energy consumption have presented pressing issues, catalyzing a pivotal shift towards environmental development worldwide. In recent years, the installed capacity of solar photovoltaic (PV) cells, particularly crystalline silicon cells, has experienced a significant surge. Among the myriad studies aimed at enhancing the efficiency of PV cells' power generation, one prominent avenue involves reducing the internal temperature of these cells. The primary objectives of the present study revolved around augmenting power generation and improving photocell efficiency. This was pursued through the strategic blending of nanoparticles with phase change material (PCM), with variations in insertion percentages to modulate the heat absorption capacity of the PV panel. Additionally, the study sought to evaluate the impact of integrating Thermoelectric Generator (TEG) modules and a water-based nano-fluid cooling system beneath the TEG setup. These measures aimed to effectively monitor the conversion of waste heat into electrical energy. Consequently, the proposed orientation of PV panels – involving PCM adjustment via alteration of insertion percentages, coupled with TEG integration and water-based nano-fluid cooling technology – holds significant promise for enhancing efficiency and mitigating solar cell degradation.
Interventies Gericht op het Voorkomen en Verminderen van de Betrokkenheid van Jongeren bij Georganiseerde Criminaliteit
Authors: Boertien Erin , Nguyen Quang , Van Deuren Sjoukje , Eichelsheim Veroni , Blokland Arjan
Published: May 2024

Vanwege de zorgen omtrent de betrokkenheid van jongeren bij de georganiseerde criminaliteit, is er steeds meer aandacht voor interventies die die betrokkenheid proberen tegen te gaan of te verminderen. Het doel van de huidige studie is om via een systematische literatuurstudie de kennis over interventies gericht op het voorkomen of verminderen van de betrokkenheid van jongeren bij georganiseerde criminaliteit te vergroten. In deze studie worden de risico- en beschermende factoren waarop de interventies waren gericht, de effectiviteit en/of werkzame elementen van de interventies en de ervaren uitdagingen tijdens het realiseren van de interventies onderzocht. Voor de systematische literatuurstudie zijn zes databases geraadpleegd (op 24 oktober 2022). Na twee uitgebreide screeningsrondes, komen er twee studies naar voren die voldoen aan de inclusiecriteria en daarmee een interventie beschrijven die op een niet-repressieve wijze individuele betrokkenheid bij georganiseerde criminaliteit probeert te verminderen. Het hebben van een positief rolmodel, het hebben van werk, scholing en de weerbaarheid van de familie bleken de voornaamste beschermende factoren waarop deze interventies waren gericht. Ondanks dat de auteurs werkzame elementen en uitdagingen benoemen kunnen er, vanwege het kwalitatieve ontwerp van beide studies, geen uitspraken worden gedaan over de effectiviteit van interventies gericht op het voorkomen of verminderen van betrokkenheid bij georganiseerde criminaliteit. Terwijl er in de praktijk, zowel op nationaal als internationaal niveau, veel tijd en geld wordt geïnvesteerd in interventies gericht op het voorkomen of verminderen van georganiseerde criminaliteit, is er momenteel een gebrek aan wetenschappelijke onderbouwing van de effectiviteit hiervan. De resultaten onderstrepen daarmee het belang van kwantitatief experimenteel onderzoek – gecombineerd met valide kwalitatieve onderzoeksmethoden – en vormen een startpunt voor toekomstige onderzoeksinitiatieven.
IoT Malware: A Comprehensive Survey of Threats, Vulnerabilities, and Mitigation Strategies
Authors: Muhammad Shairoze Malik
Published: May 2024

The proliferation of the Internet of Things (IoT) has ushered in a new era of connectivity and convenience, linking a vast array of devices from household appliances to industrial machinery. However, this interconnectivity also introduces significant security vulnerabilities, making IoT systems attractive targets for malicious actors. This comprehensive survey delves into the multifaceted world of IoT malware, exploring the evolving landscape of threats that plague these systems. We methodically analyze various types of IoT malware, identifying common attack vectors and the intrinsic vulnerabilities that IoT devices often possess. These vulnerabilities range from inadequate security protocols to the use of default credentials and unpatched software. Furthermore, the paper highlights real-world instances where IoT devices have been compromised, leading to significant disruptions and breaches of privacy. In addressing these challenges, we outline an array of mitigation strategies. These strategies include but are not limited to, enhanced encryption methods, regular firmware updates, network segmentation, and the adoption of robust authentication mechanisms. We also discuss the role of machine learning and artificial intelligence in predicting and preventing IoT malware attacks. Moreover, our survey extends to the regulatory and ethical considerations surrounding IoT security, advocating for a more proactive approach in standard-setting and compliance enforcement. The findings of this study aim to serve as a foundational resource for researchers, cybersecurity professionals, and policymakers, emphasizing the need for a collective and informed effort in fortifying the IoT ecosystem against the ever-growing threat of malware.
İHALENİN FESHİ TALEPLERİNDE HUKUKÎ YARAR
Authors: Kartal Bünyamin
Published: May 2024

Mahkemeden hukukî koruma talebinde bulunan kimsenin hukukî koruma istemekte bir menfaati bulunmalıdır. Hukukî yarar olarak ifade edilen bu menfaat, ihalenin feshi talepleri için de geçerlidir. Buna rağmen kanun koyucu İİK m. 134/11’de ihalenin feshi talebinde bulunan kimsenin hukukî yararını ispat etmesi gerekliliğini ayrıca düzenlemiştir. İİK m. 134/2, ihalenin feshini talep edebilecek kimseleri sınırlı olarak saymıştır. Bir kimsenin ihalenin feshini isteyebilecek kimselerden olması her durumda ihalenin feshini istemekte hukukî yararı olduğu anlamına gelmemektedir. Genellikle ihalenin feshini isteme yetkisi ile hukukî yarar meselesi birbiri ile karıştırılmaktadır. İhalenin feshi taleplerinde hukukî yarar, Kanunda sınırlı olarak sayılan ilgililer ve her ihalenin feshi sebebi için somut olayın koşulları dikkate alınarak ayrı ayrı değerlendirilmelidir. Bu doğrultuda çalışmamızda menfaatin zarar görmesinden ne anlaşılması gerektiği, karşılaştırmalı hukukta ihalenin feshi taleplerinde hukukî yarar şartı ve Türk hukukunda kimler için hangi koşullarda ihalenin feshini istemekte hukukî yarar bulunduğu ve Yargıtay’ın 07.11.2023 tarihli içtihat değişikliği incelenmiştir.
Legacy of New Wave
Authors: Wang Wan Jui
Published: May 2024

This article delves into the influence of transnationalism on Taiwan New Cinema, focusing on the works of female director Chiang Hsiu-Chiung, particularly her Japanese language film, and the femme-centric drama The Furthest End Awaits (2014). It is discussing a film within the context of global art cinema, particularly highlighting its significance in attracting audiences interested in art-house films. The film seems to be positioned as part of the legacy of the new wave in Taiwan cinema, suggesting that it shares thematic, stylistic, or historical connections with the innovative and influential filmmaking movement that emerged in Taiwan. Moreover, Chiang’s film explores contemporary kinship within the framework of global art cinema, asserting that Taiwan New Cinema has established itself as a significant presence in the arthouse film festival circuit since the 1980s.
One of the defining characteristics of Taiwan New Cinema is its utilization of long takes, deliberate spatial and depth composition, incorporation of documentary elements depicting everyday life, and the dialectical interplay between sound and visuals. These techniques contribute to the films’ self-reflexivity and liminality, enhancing their artistic and narrative depth. Moreover, the article investigates how Chiang’s films empower women, reflecting the influence of transnational feminism in East Asia. Through a structural analysis, it highlights the reversal of roles between the main characters, Misaki and Eriko, and the establishment of connections with a broader network of women. This portrayal affirms a sense of sisterhood and mutual support, enriching the narrative with engaging interpersonal dynamics. Furthermore, the article explores how the dynamics of space within the films contribute to the representation of sisterhood, intersecting with themes of trauma, memory, and embodiment. By examining these elements, the article offers insights into the complex interplay between transnationalism, feminism, and cinematic representation within Taiwan New Cinema.
Literary Transediting as a Collaborative Process Between the Author and Translator
Authors: Jeon Min-Chul , Jumaniyazova Shoira
Published: May 2024

Translation shifts, which can be categorized as either “obligatory” or “optional” have been studied extensively in translation studies. When such shifts occur at the macro-level, that is above the sentence level, a translation can then be said to have transitioned into what Stetting (1989, p. 374) described as “transediting”. Where transediting in journalism has received a considerable amount of attention in translation studies, examples of transedited literature are comparatively rare, and research on such transedited works is proportionate. This article analyzes the translation of the award-winning Uzbek novel The Eternal Wanderer as a notable example of a transedited work. Written by Isajon Sulton, a prolific Uzbek novelist, and translated by Christopher Fort, The Eternal Wanderer represents an example of a transedited work that is the product of a collaborative effort between author and translator. The novel is rich in its references to Islam as well as the native language, history, and culture of Uzbekistan, none of which are readily accessible for a Western audience that is not deeply acquainted with these things. As such, the translator, in his introduction to the book, notes that he worked with the author to edit as much as five to ten percent of the novel. The product of such a collaborative effort presents a unique opportunity for textual analysis in order to gain insights into literary transediting. A paratextual and qualitative content analysis was conducted to reveal the types and levels of optional shifts present in the translation in order to determine the extent of transediting and the motivations that underpinned each instance of transediting. The findings of the article indicate that at the word/phrase and sentence level, the translator opted to use shifts such as annotations, modifications, additions, and deletions to address disparate cultural and linguistic norms. At the paragraph and chapter level, large segments were deleted as part of the translator’s strategy to adapt the source material and produce a translation that is more accessible for its intended audience.
Systemic vs. in-irrigation tranexamic acid in percutaneous nephrolithotomy
Authors: Hinojosa-Gonzalez David E. , Somani Bhaskar , Olvera-Posada Daniel , Segall Michal , Villanueva-Congote Juliana , H. Eisner Brian
Published: May 2024

Introduction: Percutaneous nephrolithotomy (PCNL) is the gold-standard treatment for large renal stones. One potentially significant complication of PCNL is blood loss, which can result in transfusion requirement and poorer stone-free outcomes. Tranexamic acid (TXA) has emerged as a promising intervention, administered systemically (TXA-S) or as part of irrigation fluid (TXA-I) in endourology. This study aimed to comprehensively analyze existing evidence regarding the applications of TXA in PCNL through a Bayesian network meta-analysis, offering insights into its efficacy and comparative effectiveness.
Methods: In February 2022, a PRISMA-compliant systematic review (PROSPERO registration number CRD42021270593) was performed to identify randomized controlled clinical trials (RCT) on TXA as either systemic therapy or in irrigation fluid. Studies in other languages other than English and Spanish were not considered. A Bayesian network was built using results from identified studies to create models that were later run through Markov Chain Monte Carlo sampling through 200000 iterations.
Results: Eight RCTs compared TXA-S vs. placebo, one TXA-I vs. placebo, and one TXA-I vs. TXA-S. TXA-I had lower risk of transfusion (relative risk [RR], 0.63 [0.47,0.84], SUCRA 0.950) than TXA-S (RR 0.79 [0.65,0.95], SUCRA 0.545). TXA-I had a lower risk of complications (RR 0.38 [0.21,0.67], SUCRA=0.957) compared to TXA-S (RR 0.55 [0.39, 0.78], SUCRA 0.539). TXA-I had a lower postoperative decrease in hemoglobin (MD -1.2 [1.3, 1.0], SUCRA 0.849) compared to TXA-S (MD-0.97 [-1.0, -0.93], SUCRA 0.646]).
Conclusions: TXA, regardless of the route of administration, is an effective intervention in decreasing bleeding, postoperative complications, and risk of transfusion when compared with placebo. Further studies directly comparing TXA-S to TXA-I would be useful to determine the optimal route of delivery.
Correlation between Management Knowledge and Commitment with Board Performance of The Student Education and Training Center
Authors: Mawardinur Mawardinur , Keliat Pedomanta , Fadhil Rasyid Alfarisyi
Published: May 2024

This study aims to determine the relationship between management knowledge and commitment to the performance of the management of the Student Education and Training Center (PPLP) in Indonesia. In addition, this study also aims to determine the relationship between management knowledge and commitment together on the performance of PPLP administrators in Indonesia. This research was conducted in North Sumatra from February to June 2022. The research method used is descriptive method with correlation. The sampling technique using proportional random samples totaling 40 people. The analysis technique used is regression technique. The results of this study concluded that: (1) There is a significant relationship between management knowledge and the performance of PPLP administrators in North Sumatra by showing thit = 43.28> ttab 1.68, (2) There is a significant relationship between commitment and the performance of PPLP administrators in North Sumatra by showing thit = 79.3> ttab 1.81, (3) There is a significant relationship together between Management Knowledge and Commitment with the performance of PPLP administrators in North Sumatra by showing thit = 4.94> ttab 1.81.
Pc1 hydromagnetic emissions of chevron type
Authors: Alexandrovich Parkhomov Vladimir , Battuulai Tsegmed , Victorovich Dovbnya Boris , Yurievich Khomutov Sergey , Grigorieivich Eselevich Victor , Yurievich Glinskyi Igor
Published: May 2024

The article presents the results of studying novel bursts of ULF emissions within 0.5–2.5 Hz (Pc1 geomagnetic pulsations) with a simultaneous increase (~0.01 Hz/min) and decrease in frequency (~0.01 Hz/min) lagging by ~5÷10 min from the initial mean frequency (~0.6 Hz). From their formal resemblance with the stripes on military officer uniforms, these emissions are called Pc1 chevrons. The bursts were observed during strong short-term geomagnetic disturbances (~1 hour): substorms with high gradient of ionospheric currents+ intensification (dD/dt or dH/dt ~1–1.3 nT/s).
We present the main parameters and couplings of these emissions with substorm geophysical phenomena of 11.02.1985, 06.04.1997 and 18.07.2013 events. Polar satellite observations of auroras are compared with LANL-91, 94 and THEMIS-A observations of charged particle fluxes. Possible mechanisms generating oscillations are also discussed.
Custos de implantação de tanques de recirculação de água para aquicultura
Authors: Silva Josenildo de Sousa e , Cunha Angélica de Oliveira Portela , Brito Carla Suzy Freire de , Barbosa José Milton
Published: May 2024

O Brasil possui grande potencial para a aquicultura em sistema de recirculação de água (RAS), pois nesta técnica ocorre a redução dos impactos ambientais através do uso e reaproveitamento da água de cultivo, se mostrando um sistema mais sustentável e aplicável às regiões semiáridas brasileiras, principalmente no de cultivo tilápias no Nordeste. Assim, este estudo teve por objetivo avaliar os custos de implantação de três tipos de tanques circulares: (1) PVC flexível, (2) PEAD e (3) Ferrocimento, em RAS, no cultivo de tilápia, o que é de suma importância, pois os tanques de cultivo representaram o maior custo de um sistema de produção aquícola em sistemas de recirculação, correspondendo a 24,6% o tanque de Ferrocimento, 31,9% PVC flexível e 34,7% de PEAD. Considerando que todos os tanques apresentam viabilidade técnica, independente do material utilizado na sua construção, os tanques de Ferrocimento apresentam menor investimento inicial na sua implantação, sendo, portanto, o mais adequado para aquicultura familiar.
Conteúdos e estratégias metodológicas em ensino de astronomia nos cursos de formação continuada: um enfoque dos professores do ensino básico
Authors: Voelzke Marcos Rincon , Spinardi José Ivan
Published: May 2024

O estudo em questão consistiu em uma pesquisa qualitativa que envolveu a participação de 18 professores do Ensino Básico na cidade de São Paulo. Esses professores atuam especificamente na disciplina de Astronomia e têm adotado metodologias ativas em sua prática pedagógica, especialmente durante o período da pandemia de COVID-19. O objetivo principal da pesquisa foi investigar as aspirações desses professores em relação aos cursos de formação continuada em Astronomia, os quais visam tanto aprofundar seus conhecimentos de conteúdo quanto desenvolver estratégias metodológicas relevantes para sua atuação em sala de aula. O estudo foi apresentado no XXIV Simpósio Nacional de Ensino de Física (SNEF), um evento acadêmico organizado pela Universidade Federal do ABC. O simpósio ocorreu de forma remota, entre os dias 19 e 30 de julho de 2021, congregando educadores e pesquisadores da área de Ensino de Física de todo o país. Durante o evento, foram discutidos diversos temas relacionados ao ensino de Física e áreas correlatas, proporcionando um espaço importante para a troca de experiências e conhecimentos entre os participantes. Os resultados da pesquisa revelaram alguns desafios enfrentados pelas universidades no que diz respeito à oferta de cursos de formação continuada em Astronomia. Foram observados que os currículos desses cursos nem sempre estão alinhados com as demandas e necessidades do Ensino Básico. Em muitos casos, os conteúdos de Astronomia abordados nas ementas das disciplinas são inseridos em contextos mais amplos, englobando uma variedade de assuntos distintos. Essa abordagem sugere uma possível superficialidade na forma como a Astronomia é tratada nos cursos de formação de professores. Diante desse cenário, os professores participantes da pesquisa expressaram a necessidade de uma abordagem mais aprofundada e contextualizada da Astronomia nos cursos de formação continuada. Eles destacaram a importância de conteúdos específicos e estratégias metodológicas que os auxiliem a melhorar sua prática pedagógica e a promover um ensino mais significativo e engajador para seus alunos. Além disso, ressaltaram a importância de espaços como o SNEF, onde podem compartilhar experiências, discutir desafios e buscar soluções para melhorar a qualidade do ensino de Física e Astronomia nas escolas brasileiras.
Diretrizes para implementação de um observatório para emergências de saúde pública
Authors: Puggi Dominic da Veiga , Príncipe Alex Santos , Machado Bruna Aparecida Souza , Winkler Ingrid , Ferreira Cristiano Vasconcellos
Published: May 2024

Os primeiros anos da década de 2020 ressaltaram a vulnerabilidade das respostas do governo e a confiança do público nas autoridades políticas, científicas e médicas. Tem sido observado que uma infodemia tem acompanhado as epidemias modernas. Para lidar com a apreensão do público, é necessária uma atitude decisiva, multidisciplinar, interdisciplinar e integrada, que requer análises profissionais completas. Neste sentido, uma ferramenta importante para informar planos de ação, intervenções governamentais e tomada de decisões durante futuras emergências de saúde pública são os observatórios de saúde pública. Este artigo tem como objetivo apresentar um conjunto de diretrizes para implementação de observatórios de emergência de saúde pública.  Para isto foram estudados observatórios no setor de saúde pública e urbana e tecnologias relevantes para uma referência cruzada. As diretrizes propostas são aderentes aos padrões internacionais de melhores práticas e, ao mesmo tempo, considera os contextos nacionais. Este artigo também pretende tratar do papel essencial da tecnologia e da colaboração no estabelecimento e manutenção de um observatório de saúde. Foram observadas uma falta de dados concretos e atualizados durante a realização da pesquisa analisando observatórios e os efeitos da desinformação na confiança pública.
Extratos de Apeiba tibourbou (Aubl.) No controle de atta sexdens L. (Hymenoptera: formicidae)
Authors: Costa Daniela Domicia da Silva , Melo Roseline da Silva , Gonçalves Pamela Porfirio , Carvalho Fabricio Waith Barros de , Lima Mayram Cardoso , Garlet Juliana
Published: May 2024

As formigas saúvas, gênero Atta Fabricius, 1804, (Hymenoptera: Formicidae) são conhecidas no setor agrícola e florestal por causarem grandes prejuízos econômicos. Devido a seletividade deste grupo de insetos os meios de controles são limitados, restringindo-se principalmente a produtos químicos sintéticos. A busca por soluções que causem menos impactos ao meio ambiente tem sido alvo de muitos pesquisadores, e o uso de produtos fitossanitários de origem vegetal no manejo de insetos-praga é um grande aliado. Assim espécies vegetais têm sido estudadas como Apeiba tibourbou (Aubl.). O presente estudo tem como objetivo avaliar a sobrevivência de operárias de Atta sexdens L. submetidas as diferentes concentrações dos extratos hidroalcóolicos de folhas e casca de Apeiba tibourbou. As coletas das operárias de Atta sexdens foram realizadas em um formigueiro adulto, em laboratório foram colocadas 10 operarias por repetição, onde foi realizada aplicação tópica do extrato (0,2ml) nas concentrações de 0, 2,5, 5,0, 7,0 e 10%. Para conservação dos indivíduos em cada vidro foi adicionado um chumaço de algodão hidrófilo com água destilada e um cubo (1cm3) de dieta. Os extratos hidroalcóolicos de folhas e casca de Apeiba tibourbou apresentam atividade inseticida em teste de laboratórios em operarias de Atta sexdens. Alcançando mortalidade de 50% das operárias submetidas aos extratos de casca em menor período quando se comparado aos resultados obtidos com os extratos de folhas. A diminuição da taxa de sobrevivência é gradativa com o aumento do tempo de exposição aos extratos hidroalcóolicos de Apeiba tibourbou se mostrando uma espécie promissora para o controle de Atta sexdens.
A Resolução CNJ 492/2023 e seu potencial de neutralização das desigualdades de gênero
Authors: Melo Elisângela Leite , Francischetto Gilsilene Passon Picoretti
Published: May 2024

A pesquisa busca identificar de que formas a violência de gênero é reproduzida pelas normas jurídicas e por sua interpretação pelo Sistema de Justiça. Busca também identificar se há ferramentas que possam ser utilizadas para reduzir esse impacto. Diante da constatação preliminar de que a desigualdade de gênero permeia a rotina diária das mulheres, negando-lhes condições dignas de trabalho ou necessárias para disputar espaços de poder, analisa-se, a partir do método dedutivo, utilizando-se de uma pesquisa bibliográfica e documental, de que forma os estereótipos de gênero e papéis sociais atribuídos às mulheres embasam as decisões judiciais, contribuindo para a manutenção da desigualdade de gênero na atualidade. Examinam-se as diferentes formas de violência experimentadas pelas diferentes mulheres. Analisam-se algumas normas do Código Civil de 1916 e do Código Penal de 1940, assim como a Resolução CNJ 492/2023. Conclui-se pela importância do reconhecimento, pelo Conselho Nacional de Justiça, da existência de normas jurídica atuais que promovam a desigualdade de gênero e da sua reprodução pelo Poder Judiciário. Conclui-se também que a Resolução CNJ 492/2023 é uma importante ferramenta a ser utilizada no enfrentamento da desigualdade de gênero.
A legitimidade da representação não-eleitoral nas instituições participativas: limites e possibilidades
Authors: Santos Cristiane Osório dos , Guimarães Jairo de Carvalho
Published: May 2024

O Orçamento Participativo foi ícone da ampliação da participação política nas decisões públicas; entretanto, não demorou para que se percebesse que a participação iria prescindir da escolha de representantes da sociedade, sem o mecanismo do voto tal como está estruturado na representação eleitoral. Nesse caso, como garantir legitimidade dos representantes não-eleitorais nas instituições participativas sem autorização e accountability da representação eleitoral? Este artigo realizou uma pesquisa bibliográfica em três autores expoentes da literatura e, para Avritzer (2007), Gurza Lavalle e Zaremberg (2014), e Miguel (2014, 2017a) existem autorização, accountability e legitimidade na representação não-eleitoral; entretanto, estas não consubstanciam todos os seus mecanismos em um único momento como no voto; mas existem em momentos difusos e processos dialógicos. Como autorização e a accountability na literatura analisada acontecem em um continuum, caberia identificar em quais momentos elas são mais evidentes e condizentes com o potencial inclusivo de captar a vontade dos representados.
A influência da gestão da cadeia de suprimentos na formação do preço da gasolina
Authors: Santos Carlos Cesar , Monterio Sérgio Pereira , Campão Ciro André de Lima
Published: May 2024

Comercializar qualquer tipo de produto é um desafio para as organizações. Uma das etapas mais complexas, e que exige dos gestores conhecimento aprofundado, trata-se da precificação dos itens comercializados. E em se tratando da gasolina, produto com baixa lucratividade e alta complexidade na formação do preço, este processo se torna mais difícil. O objetivo deste trabalho, é analisar na percepção dos empresários quais elementos internos e externos da Supply Chain Management (Gestão da Cadeia de Suprimentos) que mais influenciaram no preço da gasolina do ano de 2019 comparado ao ano de 2022. Para isso foi realizada uma pesquisa exploratória nos postos de gasolina das cidades compreendidas entre os municípios de Dom Eliseu e Bom jesus do Tocantins, no Pará. Na revisão da literatura, dissertou-se sobre a logística e o SCM, logística integrada, sobre o transporte e quais os impostos, tanto federal, estadual como municipal que possuem maiores influências na formação do preço da gasolina. Constatou-se que na visão dos gestores o preço final de seu produto, baseia-se principalmente nos custos próprios, em detrimento da concorrência, que deixou de influir de forma mais relevante, na precificação. Destaca-se que esse estudo buscou verificar as mudanças percentuais em relação a percepção dos gestores, não se aprofundando nas causas que as fundamentaram.
Competências socioafetivas e inovação: uma discussão no contexto da educação a distância
Authors: Schorn Gabriella Thais , Oliveira Ariane Wisnieski de , Sampaio Deyse Cristina Frizzo , Silva Débora Luiza da , Akazaki Jacqueline Mayumi , Machado Leticia Sophia Rocha , Longhi Magalí Teresinha , Behar Patricia Alejandra
Published: May 2024

O objetivo deste artigo foi identificar a possível relação das competências socioafetivas (CSA) e a inovação na Educação a Distância (EaD). As CSA analisadas foram: abertura ao novo, autogestão, empatia, engajamento e resiliência. A metodologia utilizada foi de natureza aplicada e de abordagem qualitativa, com objetivo exploratório. O público-alvo foram 28 professores que atuam na EaD. O instrumento para coleta de dados consistiu em um questionário disponibilizado de maneira on-line, contendo perguntas abertas e fechadas. A finalidade dessa abordagem foi a de identificar o perfil dos respondentes e destacar aspectos referentes à relação entre as competências socioafetivas e a inovação na EaD. Conforme os resultados do estudo, os docentes participantes consideraram as CSA como sendo importantes e perceberam a relação com a inovação no âmbito educacional. A investigação verificou que, ainda que o acesso às tecnologias digitais seja necessário e importante, as competências socioafetivas agem como força propulsora para o desenvolvimento das inovações.
Experiences of families of adolescents in a bond-strengthening program
Authors: Gomes Ludmilla Reis Silva , Souza Marcela Tavares de , Souza Morgana Praxedes de , Dias Marcelo Couto , Pessalacia Juliana Dias Reis
Published: May 2024

Adolescence is a time of significant changes and health risks, highlighting the importance of family and bond-strengthening programs, such as the Strengthening Families Program 10–14 (SFP10-14), to prevent risky behaviors. Objective: to analyze the experiences of families of adolescents participating in a program to strengthen family bonds (SFP10-14). Method: a qualitative exploratory study with an interpretative approach was performed, using generic qualitative research as a methodological reference, where 19 parents and 15 adolescents participating in the program were interviewed, focusing on the thematic analysis of their experiences, and the data were analyzed through thematic categorization. Results: From the participants’ speeches, four thematic categories emerged: Perception of parental roles; Conversation and assertive communication; Strengthening family bonds; and Influence of religious practices on children’s education. Final considerations: The use of the SFP 10-14 is effective in strengthening family bonds and preventing risky behaviors among adolescents, suggesting the inclusion of this instrument in public policies and preventive programs focused on this population.
Práticas de gestores(as) para aquisição de conhecimento e da promoção da segurança do paciente em organizações hospitalares durante a pandemia de COVID19
Authors: Silva Maria do Espirito Santo da , Fernandes Josicélia Dumet , Cordeiro Ana Lúcia Arcanjo Oliveira , Bezerra Ana Lúcia Queiroz , Rados Gregório Jean Varvakis , Silva Rosana Maria de Oliveira , Silva Keile Kemyly Assis da
Published: May 2024

A aquisição do conhecimento é a etapa inicial do processo de Gestão do Conhecimento (GC). A GC retrata as formas de aquisição de conhecimento no cotidiano das práticas laborais de saúde no contexto das organizações hospitalares no intuito de promover melhorias na capacitação profissional e qualidade assistencial. Trata-se de um estudo de abordagem qualitativa de cunho analítico e exploratório, realizado em oito hospitais da Bahia. A coleta foi realizada no período de maio de 2022 a fevereiro de 2023. As entrevistas foram gravadas e transcritas na íntegra, as informações foram organizadas e codificadas através da análise do conteúdo de Bardin utilizando o software WebQDA. Participaram do estudo 17 enfermeiros, uma médica, um fisioterapeuta e um farmacêutico. A partir do processo de análise dos conteúdos das falas dos participantes sobre a forma de aquisição do conhecimento, emergiram as seguintes categorias: Capacitação profissional; Conhecimento gerado por materiais científicos; Leitura de materiais técnicos; Interação entre colaboradores.
SMPTE at the 2024 NAB Show
Authors: Poole Russell
Published: May 2024

The NAB Show is one of the biggest media technology events in the world. Tech companies from all over the world come to this event to share technology, insights, and solutions. SMPTE was one of those organizations and hosted many educational sessions that shined a light on innovative solutions and revelations happening in the industry.