bluuebunny/crossref_metadata_2025 huggingface dataset:
The aesthetics of speedrunning: Performances in neo-baroque space
Authors: Reed Emilie
Published: October 2022

Speedrunning describes activities related to the development and performance of strategies to complete games quickly, and is a valuable source of historical and technical information, while producing specialized aesthetic explorations of a videogame’s environment. Most research on speedrunning emphasizes its metagaming or documentary function. However, speedrunning also changes the aesthetic experience of gameplay, both for players and in spectated performance. Aesthetic investigation informed by art historical perspectives, such as Angela Ndalianis’ theory of the Neo-Baroque and H.S. Becker’s study of Art World formations, offers new insights into the experience of speedrunning and how discontinuous and disjointed simulated space is experienced and appreciated as aesthetic phenomena by players and spectators. While Nidalianis has applied her theory to videogames, among other types of contemporary entertainment, further investigating speedrunning performances through this lens extends her analysis and problematizes the idea of a videogame as a singular aesthetic work, instead drawing attention to alternative aesthetic experiences videogames can offer.
Students’ Voices about Education Quality of a Bachelor Program in Pandemic Times
Authors: Ávila Martin Karen Dayanna , Rodríguez Granados Ingrid Johanna
Published: October 2022

During 2020, a series of quarantines that interrupted face-to-face education were experienced. This study aims at examining aspects that impacted the quality of education of a group of five preservice teachers, who moved from face-to-face to virtual learning. We followed a qualitative narrative research design and the participants’ narratives and logs were compiled as data collection instruments. We concluded that methodology, strategies and levels of well-being and health impacted the participants’ educational quality during the onset of the pandemic, and opportunities for the bachelor program to foster better learning-teaching processes were identified.
Key words: education, pandemics, quality, story, virtual learning.
História, visualidade e imaginário social
Authors: Becker Beatriz
Published: October 2022

As primeiras narrativas não ficcionais com imagens em movimento sobre acontecimentos históricos construídas no Brasil foram permeadas pela relação entre política e ideologia. A análise de 106 cinejornais produzidos na Era Vargas reunidos no canal do Arquivo Nacional no YouTube revela como a utilização da visualidade e do som nessas formas pioneiras de composição da realidade no regime estadonovista afetaram a conformação da gramática dos telejornais a partir da década de 1950. Este trabalho sinaliza que as fronteiras entre gêneros discursivos que operam traduções do real são tênues e porosas desde a construção dos primeiros textos audiovisuais informativos no país.
Gênero narrativo e distopia no filme Divino amor
Authors: Silva Eduardo Miranda
Published: October 2022

O artigo propõe uma leitura do filme Divino amor, de 2019, com direção de Gabriel Mascaro, em dois eixos a partir de um método que articula análise fílmica a questões teóricas levantadas sobre pontos concernentes à obra. O primeiro diz respeito a um retorno do gênero narrativo no cinema fora do circuito mais comercial. No caso do filme de Mascaro, opera-se na chave da ficção científica. O segundo eixo salienta aspectos distópicos que dialogam com a realidade e com narrativas ficcionais, documentais e científicas da contemporaneidade. No aspecto visual, estabelecemos relações entre um enredo que aborda a valorização do conservadorismo cristão em um mundo permeado por uma tecnologia avançada no cotidiano dos personagens. Nesse sentido, suscitamos aqui o “vaporwave”, estética retrô-futurista surgida no contexto da música eletrônica e crítica ao capitalismo, mas que foi posteriormente capturada na internet por movimentos político-partidários da extrema-direita no mundo.
Usos da memória como recurso de contextualização no jornalismo digital
Authors: Bruck Mozahir Salomão , Pimenta Ana Paula Fernandes , Marques Carolina Lopes
Published: October 2022

O presente artigo tem o objetivo de discutir aspectos da produção do chamado jornalismo contextual articulado à noção de memória, a fim de compreender como esta é acionada na construção dos conteúdos jornalísticos que buscam oferecer, em uma perspectiva de contextualização, melhores circunstâncias de compreensão dos fatos e informações abordados. Para tal, toma-se como objetos de análise reportagens dos portais Nexo Jornal e do UOL Tab. Um primeiro entendimento propiciado por tal abordagem é de que a memória pode se fazer presente no jornalismo de diferentes modos, destacando aqui como esta, no acionamento de fatos e circunstâncias do passado, pode jogar luzes no presente da vida cotidiana. O jornalismo, por assim dizer, se vale da memória ao mesmo tempo em que contribui para configurá-la.
book and the reader from a Media Ecology perspective
Authors: Martins Vanessa Coutinho
Published: October 2022

In this exclusive interview, Dr. Robert K. Logan talks about the past, present, and future of the book and the reader from a Media Ecology perspective. He describes the influences that the internet, the World Wide Web and social media exert on readers and consequently on the formats of books. The interview is focused on his book The future of the library: from electronic media to digital media, which was originally co-authored with Marshall McLuhan in the late 1970s. The work on the book was halted because of McLuhan’s death in 1980 but Logan, in 2016, returned to the project retaining what he and McLuhan wrote but updated it with information concerning the impact of digital media on the library.
Chamada Pública voltada à Prevenção e ao Combate ao vírus Zika no Brasil
Authors: Rocha de Queiroz Kelly , Calabró Luciana , Gheno Ediane Maria
Published: October 2022

O artigo avalia a produção e a colaboração científica (coautoria) dos coordenadores dos projetos de pesquisa financiados pela Chamada Pública voltada à Prevenção e ao Combate ao vírus Zika. Trata-se de um estudo bibliométrico/cientométrico que analisou um total de 315 documentos sobre o vírus Zika indexados na Web of Science de autoria de 53 coordenadores beneficiados pela referida Chamada Pública. Os resultados indicaram que a maioria das produções científicas mais citadas foi publicada em periódicos de elevado Fator de Impacto e que houve uma expressiva colaboração científica entre países, especialmente com os Estados Unidos e com países europeus. Percebeu-se que esses estudos científicos também abordaram temáticas relacionadas com outros arbovírus e com as implicações à saúde da população ocasionada pela infecção decorrente do vírus Zika. A pesquisa conclui que o investimento nas referidas pesquisas científicas contribuiu para a geração de novos conhecimentos acerca do vírus Zika, atendendo assim ao objetivo principal da Chamada Pública, além da inserção e da visibilidade internacional da produção científica dos pesquisadores beneficiados com o financiamento.
Apropriação
Authors: Borges Ellen Valotta Elias , Almeida Júnior Oswaldo Francisco de
Published: October 2022

Embora o conceito de apropriação da informação seja indispensável para compreender o processo de construção e significação da informação, observa-se uma grande ausência de trabalhos científicos na área da Ciência da Informação que discutem a temática de modo mais aprofundado. Poucos trabalhos se voltam para compreender o processo, os elementos e os resultados da apropriação. Diante do exposto, este trabalho objetiva apresentar o conceito de apropriação da informação mediante uma perspectiva processual e ideológica que possui como base o signo ideológico e a teoria dialógica de Bakhtin. Apresenta-se, então, o conceito de apropriação da informação como um processo de construção que resulta na materialização da informação. Desse modo, o foco deste estudo se instaura na compreensão dos elementos que compõem esse processo e na relação estabelecida entre eles, buscando, assim, levantar discussões em torno da informação materializada. Parte-se do pressuposto de que a materialização acontece pela relação entre as partículas de protoinformação, as manifestações informacionais e a consciência informativa. A inter-relação constante entre esses três elementos é um fenômeno complexo que sempre acontece na relação com o outro, portanto, é ideológico e dialógico. Em síntese, a construção da informação depende das relações estabelecidas entre os sujeitos sociais podendo ser representada por uma materialidade física ou não-física, exteriorizadas ou simplesmente mantidas no discurso interior.
The Actual Conditions in Fingerprinting against the Unnatural Dead Bodies and the Improvement Direction for Nonproliferation of Infectious Diseases
Authors:   The Korean Academy of Scientific Criminal Investigation, Chun Jung Hwan , Park kyunglock
Published: October 2022

Fingerprinting powder and brush, that are used to collect fingerprints from those unnaturally killed, are likely to cause the spread of infections disease after they are applied to the source of infection. Therefore, it is necessary to research and develop new material that is less harmful to human bodies and not likely to spread in the air. Other fingerprinting tools that are unsuitable for disinfection can bring environmental pollution when disposed, and they are not for one-time use due to the high cost. Bacteria are collected from the brush, that are used to take fingerprints from the deceased, and cultured on even surfaced media, and they are confirmed to be bacillus circulans, staphylococcus aureus and staphylococcus epidermidis. The padded part of newly improved ‘fingerprint stamp’, which directly touches dead body can be sterilized, and the fingerprint stamp can also prevent the leakage of remaining infectious viruses for it is covered with protective lid. The fingerprints taken with improved ‘fingerprint stamp’ is confirmed to be in accordance with the data stored in AFIS, and the quality score of fingerprints taken with ‘fingerprint stamp’ is turned out to be the same as the one taken with powder technique
ALL THAT GLITTERS IS NOT GOLD: BEYOND ONLINE HOTEL REVIEWS
Authors: First Komen Ivana , Vujičić Maja
Published: October 2022

Purpose - The purpose of this study was to uncover potential thematic mismatches between textual comments in online hotel reviews, on the one hand, and rating categories in those reviews, consumer experience scales, and marketing tools, on the other; and to draw attention to challenges that these mismatches pose for hotel managers and researchers. Design/Methodology/Approach - An in-depth, qualitative, contextual content analysis of online reviews was conducted. Findings - Thematic mismatches were found for all three comparisons. The textual comments are broader in topic than the rating categories of the platform studied. Conversely, textual comments are thematically narrower than the studied consumer experience scales and marketing tools. These mismatches can lead to suboptimal decision-making by hotel managers especially when they are pressured by a large and increasing number of reviews. Originality of the research - Past research has not drawn attention to the thematic mismatches between textual comments in online customer reviews and other sources of information available to hotel managers, nor has it discussed the challenges hotel managers may face when relying heavily on online customer comments. The findings also provide input for researchers to rethink how best to measure consumers’ hotel experience.
Streptavidin-Modified Iron Oxide Hybrid Nanozymes for Magnetic Enrichment and Bioelectrocatalytic Sensing of Circulating Tumor RNA
Authors: Koo Kevin M.
Published: October 2022

Iron oxide nanozymes are a form of nanomaterial with both superparamagnetic and enzyme-mimicking properties. Given the multifunctional nature of iron oxide nanozymes, it is attractive for creating iron oxide hybrid nanozymes through biomolecular modifications to imbue with auxillary properties. Such iron oxide hybrid nanozymes can be useful for rapid and cost-effective analysis of circulating tumor nucleic acids (ctNAs) in patient liquid biopsies during minimal residual disease (MRD) monitoring of cancer recurrence. Herein, the use of streptavidin-modified iron oxide hybrid nanozymes is reported for magnetic enrichment and bioelectrocatalytic sensing of three prostate cancer (PCa) ctRNA biomarkers with high detection specificity and sensitivity (10 copies) over an ultrabroad dynamic range (five orders of magnitude). Furthermore, the feasibility of ctRNA analysis for pre- and post-cancer treatment MRD monitoring is demonstrated using PCa urinary liquid biopsy samples.
Physical and Chemical Characteristics of Dew and Rain in North-west Africa with Focus on Morocco: Past and Future Evolution (2005 – 2100)
Authors: Muselli Marc , Lekouch Imad , Beysens Daniel
Published: October 2022

In the context of global warming and reduction in fresh water availability is presented a study of the evolution of dew, rain and evapotranspiration in the NW of Africa. The time periods are concerned with the years 2005-2020, using existing data, and years 2020-2100, using the low and high emissions representative concentration pathway scenarios RCP 2.6/8.5 from the Cordex database. A continuous decrease in rain precipitation is observed, on order of -14 mm/decade for the more credible scenario RCP 8.5. The amplitude is maximum on the coast and on the foothills of Atlas. A clear decrease in dew yields is also observed along a NW/SE axis, strongly correlated with a corresponding decrease in relative humidity (up to 7%). Chemical dew and rain data in the representative site of Mirleft correspond to the major cations Na+ > Ca2+ > Mg2+ > K+, similar to a local spring water. Concentrations in rain are about two times less than in dew water. Ionic concentrations are compatible with WHO standards. The seasonal variations of the ionic concentrations in dew and rain follow a volume dilution dependence. The expected diminution in dew and rain volumes according to the RCPs 2.6 and 8.5 should increase the dew and rain ionic concentrations in the future.
Plastic Spinal Motor Circuits in Health and Disease
Authors: Windhorst Uwe , Dibaj Payam
Published: October 2022

In former times, the spinal cord was considered a hard-wired network for spinal reflexes and a conduit for long-range connections. This view has changed dramatically over the past few decades. It is now recognized as a plastic device whose structures and functions adapt to changing circumstances. While such changes also occur under physiological conditions, the most dramatic alterations take place during or after various pathological events. It is astonishing what mechanisms the musculo-skeletal system has evolved to come to grips with the damages. Many of these changes are maladaptive, but some appear to help adapt to the new conditions. Although myriads of studies, using manifold methods, have been devoted to elucidating the underlying mechanisms, in humans and animal models, the etiology and pathophysiology of various diseases are still little understood, due to a number of reasons. We will here try to summarize some results and remaining problems in a selection of diseases, in particular spinal muscular atrophy (SMA), amyotrophic laterals sclerosis (ALS), and predominantly spinal cord injury (SCI) with occasional relations to stroke. Especially the changes in SCI (and stroke) depend on the cause, site and extent of the afflicted damage and are therefore multifarious. At the end, we will briefly summarize results indicating that operant, classical and instrumental conditioning can be used to produce plastic changes in healthy people, with potentials for applications to patients with spinal cord injury. In order not to overload the article, we will not delve deeply into sub-cellular processes.
High Specificity Test Algorithm for Bovine Tuberculosis Diagnosis in African Buffalo (Syncerus caffer) Herds
Authors: Clarke Charlene , Bernitz Netanya , Goosen Wynand Johan , Miller Michele Ann
Published: October 2022

Ante-mortem bovine tuberculosis (bTB) tests for buffaloes include the single comparative intradermal tuberculin test (SCITT), interferon-gamma (IFN-γ) release assay (IGRA) and IFN-γ-inducible protein 10 release assay (IPRA). Although parallel test interpretation increases detection of Mycobacterium bovis-infected buffaloes, these algorithms may not be suitable for screening buffaloes in historically bTB-free herds. In this study, the specificities of three assays were determined using M. bovis unexposed herds, and a high specificity diagnostic algorithm developed. Serial test interpretation using the IGRA and IPRA showed significantly greater specificity (98.3%) than individual tests or parallel testing (73%). When the SCITT was added, the algorithm had a 100% specificity. Since the cytokine assays had imperfect specificity, potential cross-reactivity with nontuberculous mycobacteria (NTM) was investigated. No association was found between NTM presence (in oronasal swab cultures) and positive cytokine assay results. As a proof-of-principle, serial testing was applied to high-value buffaloes (n=153) in a historically bTB-free herd. Buffaloes positive on a single test (n=28) were regarded as test negative. Four buffaloes were positive on IGRA and IPRA, and M. bovis infection was confirmed following culling. These results demonstrate the value of using IGRA and IPRA in series to screen buffalo herds with no previous history of M. bovis infection.
Study of the Carbochlorination Process with Cacl2 and Water Leaching for the Extraction of Li, Co, and Ni From Spent Lithium-Ion Batteries
Authors: González Yarivith C. , Alcaraz Lorena , Alguacil Francisco J. , Barbosa Lucía , González Jorge , López Félix A. A.
Published: October 2022

The abundant use of lithium-ion batteries (LIBs) in a wide variety of electric devices and vehicles will generate a large number of depleted batteries, which contain several valuable metals such as Li, Co, Mn, and Ni present in the structure of the cathode material (LiMO2). The present work investigates chemical, technological, and environmental aspects in the treatment of such wastes, development of a methodology for the extraction of lithium, cobalt, nickel, manganese, and graphite by a carbochlorination pyrometallurgical process. Mixtures of cathode and anode materials (called black mass, mixed oxides of Li, Co, Ni, Mn, and graphite) from different LIBs, carbon black (as reducing agent), and CaCl2 (as chlorinating agent) were used. Non-isothermal thermogravimetric tests up to 850°C and isothermal tests at 700°C of the mixtures in an inert atmosphere were carried out. It was experimentally observed that the LiMO2-C-CaCl2 reaction takes place at 700°C. LiCl, Ni, and Co were obtained as final products, and to a lesser extent, CoO, NiO, and MnO2. CaCO3 was also obtained as a by-product. The obtained results show that carbochlorination is an efficient and effective alternative route for the extraction and recovery of metals from different LIBs, focused on the sustainability and circular economy
Health Promotion on Instagram. Descriptive-Correlational Study and Predictive Factors of Influencers’ Content
Authors: Picazo-Sánchez Laura , Domínguez-Martín Rosa , García-Marín David
Published: October 2022

The pandemic has accentuated the power that influencers have to influence their followers. Various scientific approaches highlight the lack of moral and ethical responsibility of these creators when disseminating content under highly sensitive tags such as health. This article presents a correlational statistical study of 443 Instagram accounts with more than one million followers belonging to health-related categories. This study aims to describe the content of these profiles and their authors and to determine whether they promote health as accounts that disseminate health-related content, identifying predictive factors of their content topics. In addition, it aims to portray their followers and establish correlations between the gender of the self-described health influencers, the characteristics of their audience and the messages that these prescribers share. Health promotion is not the predominant narrative among these influencers, who tend to promote beauty and normative bodies over health matters. A correlation is observed between posting health content, the gender of the influencers and the average age of their audiences. The study concludes with a discussion on the role of public media education and the improvement of ethical protocols on social networks to limit the impact of misleading and false content on sensitive topics, increasing the influence of real health prescribers.
Parasitic Effects on Electrical Bioimpedance Systems: Critical Review
Authors: Bertemes-Filho Pedro , Marcondes David William Cordeiro , Paterno Aleksander Sade
Published: October 2022

Parasitic capacitance represents the main error source in measurement systems based on electrical impedance spectroscopy. The capacitive nature of electrodes’ impedance in tetrapolar configuration can give origin to phase errors when electrodes are coupled to parasitic capacitances. Nevertheless, reactive charges in tissue excitation systems are susceptible to instability. Based on such a scenario, mitigating capacitive effects associated with the electrode is a requirement in order to reduce errors in the measurement system. A literature review about the main compensation techniques for parasitic capacitance was carried out. The selected studies were categorized into three groups: (i) compensation in electronic instrumentation; (ii) compensation in measurement processing, and (iii) compensation by negative impedance converters. The three analyzed methods emerged as effective against fixed capacitance. No method seemed capable of mitigating the effects of electrodes’ capacitance, that changes in the frequency spectrum. The analysis has revealed the need for a method to compensate varying capacitances, since electrodes’ impedance is unknown.
Immediate Effects of Instrument-assisted Soft Tissue Mobilization on Hydration Content in Lumbar Myofascial Tissues: A Quasi-Experiment
Authors: Brandl Andreas , Egner Christoph , Schwarze Monique , Reer Rüdiger , Schmidt Tobias , Schleip Robert
Published: October 2022

Background: Instrument-assisted soft tissue mobilization (IASTM) is thought to alter fluid dynamics in human soft tissue. The aim of this study was to investigate the influence of IASTM on the thoracolumbar fascia (TLF) on the water content of the lumbar myofascial tissue. Methods: 21 healthy volunteers were treated with IASTM. Before and after the procedure and 5 and 10 minutes later, lumbar bioimpedance was measured by bioimpedance analysis (BIA) and TLF stiffness by indentometry. Tissue temperature was recorded at the measurement time points using an infrared thermometer. Results: Bioimpedance increased significantly from 58.3 to 60.4 Ω (p < 0.001) at 10-minute follow-up after the treatment. Temperature increased significantly from 36.3 to 36.6° Celsius from 5 to 10 minutes after treatment (p = 0.029), while lumbar myofascial stiffness did not change significantly (p = 0.84). Conclusions: After the IASTM intervention, there was a significant increase in bioimpedance, likely due to a decrease in water content in myofascial lumbar tissue. Further studies in a randomized control trial design are needed to extrapolate the results in healthy subjects to a symptomatic population as well and to confirm the reliability of BIA in myofascial tissue.
Synthesis, Properties and Spatial Structure of 4-[(3,5-dimethyl-1,2-oxazol-4-yl)sulfonyl]cytisine
Authors: Ibrayev Marat K. , Nurkenov Оralgazy A. , Rakhimberlinova Zhanara B. , Takibayeva Altynaray T. , Turdybekov Dastan M. , Seilkhanov Tulegen M. , Issabayeva Meruyert B. , Kelmyalene Assel A.
Published: October 2022

This article has been studied the synthesis of a new derivative of the known alkaloid cytisine contained in the seeds of plants of Cytisus laburnum L. and Thermopsis lanceolata R.Br., both of the Lugiminosae family. The new compound has been obtained from two biologically active compounds such as isoxazole and cytisine. It has been demonstrated that the reaction led to the single-stage method under very mild conditions to obtain some 4-[(3,5-dimethyl-1,2-oxazole-4-yl)sulfonyl]amides. This class of compounds is promising to obtain the new biologically active compounds. This article has examined in detail a structure with using the 1H and 13C NMR and two-dimensional NMR spectroscopy of COSY (1H-1H), HMQC (1H-13C) and NMVS (1H-13C). As a result, the homo- and heteronuclear spin-spin couplings should be established. The X-ray diffraction analysis has determined the spatial structure of a new derivative based on cytisine alkaloid. Thus, its hemorheological activity has been studied.
A RoBERTa Approach for Automated Processing of Sustainability Reports
Authors: Angin Merih , Taşdemir Beyza , Yılmaz Cenk Arda , Demiralp Gökcan , Atay Mert , Angin Pelin , Dikmener Gökhan
Published: October 2022

There is a strong need and demand from the United Nations, public institutions, and private sector for classifying government publications, policy briefs, academic literature, and corporate social responsibility reports according to their relevance to the Sustainable Development Goals (SDGs). It is well understood that the SDGs play a major role in the strategic objectives of various entities. However, linking projects and activities to the SDGs has not always been straightforward or possible with existing methodologies. Natural language processing (NLP) techniques offer a new avenue to identify linkages for SDGs from text data. This research examines various machine learning approaches optimized for NLP-based text classification tasks for their success in classifying reports according to their relevance to the SDGs. Extensive experiments have been performed with the recently released Open Source SDG (OSDG) Community Dataset, which contains texts with their related SDG label as validated by the community volunteers. Results demonstrate that especially RoBERTa achieves very high performance in the attempted task, which is promising for automated processing of large collections of sustainability reports for detection of relevance to SDGs.
Seaweed Extracts as Bio-stimulants for Rice Plant (Oryza sativa) – a Review
Authors: Abd Tahar Siti Zaleha , How Siew Eng , Lum Mok Sam , Surugau Noumie
Published: October 2022

Rice is considered as the most important crop for most of the world population. Utilization of seaweed as bio-stimulant can be an alternative way to enhance rice plant growth and productivity, as well as a strategic move to reduce the use of inorganic fertilizer that is harmful to the environment. Seaweed and its derivative products have been widely used as bio-stimulant in the agricultural industry because of their potential use in increasing plant growth and productivity. Auxins, gibberellins, and cytokinin are some of growth regulators found in seaweed extract, as well as macro and micronutrients required for plant growth and development. Several studies have found that seaweed extract has a variety of favorable effects as a plant growth promoter, including early seed germination and establishment, improved nutritional quality, increased yield and crop performance, and increased tolerance to environmental stress. The purpose of this paper is to give a comprehensive overview of the impacts of several seaweed species on seed germination, crop development and production, enhancement of rice plants (Oryza sativa) nutritional quality and the modes of action of seaweed extract includes the chemical components that might be causing plant physiological changes.
Iridium-based Electrocatalysts for Acidic Oxygen Evolution Reaction: Engineering Strategies to Enhance the Activity and Stability
Authors: Xu Hongzhe , Han Yun , Li Qin , Yan Xuecheng
Published: October 2022

Proton exchange membrane water electrolyzers (PEMWEs) for water electrolysis have received tremendous attention due to their immediate response, high proton conductivity, low ohmic losses and gas crossover rate. However, design high activity, economical and long-term durable electrocatalysts in an acidic environment is still the bottleneck to realize the large-scale commercialization of PEMWEs. Iridium-based materials represent one of the most promising classes of oxygen evolution reaction (OER) catalysts due to their intrinsic stability in acid media over ruthenium-based counterparts. However, only a few innovative approaches have been developed to synthesizing iridium-based catalysts (IBCs) in the past decade, mainly due to achieving high activity may deteriorate the stability of IBCs. Accordingly, various engineering strategies of optimizing IBCs have been proposed to address this issue, including doping engineering, morphology engineering, crystal phase engineering and support engineering. Herein, a critical overview focusing on various synthesis and modulation strategies of IBCs is presented, based on an in-depth understanding of the relationship between electronic structures, charge redistribution and activity as well as stability of the electrocatalysts. In addition, the unprecedented achievements in PEMWEs are summarized. The reaction mechanisms and future perspectives are critically discussed to inspire more rational design of IBCs toward practical applications.
Treatment of a Lisfranc Injury in a 7-Year-Old Boy
Authors: Kraft Denver B. , Howard Jason J.
Published: October 2022

Case:

This is a case of a 7-year-old boy with a Lisfranc injury identified on weight-bearing films who was treated successfully with closed reduction with a clamp and smooth pin fixation. This patient returned to sports without pain or radiographic signs of arthritis at 1 year.

Conclusion:

Lisfranc fractures and ligamentous injuries are rare and can occur in skeletally immature children. They have high potential for long-term disability if not properly diagnosed and treated. Although there is no consensus on optimal management of pediatric Lisfranc injuries, restoration of an anatomic Lisfranc joint with smooth pins and immobilization for 6 weeks is a viable treatment option.
Comparative Evaluation on the Coupled Fracture Characteristics for Longmaxi Anisotropic Shale
Authors: Dong Guangjian , Chen Yingjie , Fu Jianhong , Guo Zhaoxue , Han Qiang , Noor Abdun , Talha Muhammad
Published: October 2022

The shale fracture characteristics are important for realizing the complex hydraulic fracture network, predicting wellbore fracture pressure, and optimizing wellbore trajectory and the rock fragmentation efficiency. Through a three-point bending test of notched semicircular specimens of Longmaxi shale, the coupled relationship of mode-I fracture toughness (Kic), peak fracture force (Pmax), energy release rate (GI), applied work (W), and loading rate was studied by using kernel density analysis method. The results showed that the dynamic characteristics of force-displacement curve exhibited obvious loading angle dependence, including two types of the “deformation accumulation-brittleness” and “deformation accumulation-brittleness-plasticity.” The Kic and GI increased linearly with Pmax increasing. With the increasing of the loading angle, the dispersion degree of Pmax, Kic, GI, and W all increased. The GI increased nonlinearly with the increasing of Kic. With the increasing of the loading rate, the Kic basically increased linearly. The dynamic Kic under static and quasistatic conditions had strong anisotropy. At the high loading rate, the anisotropy index gradually decreased as the loading rate increasing. The results have significant implications for the design of hydraulic fracturing and the exact fracture control of Longmaxi shale.
Machine Learning Engine for Real-Time ESP Failure Detection and Diagnostics
Authors: Lastra Rafael Adolfo , Xiao Jinjiang
Published: October 2022

Failures of electric submersible pumps (ESPs) are common occurrences in the oil industry, resulting in production disruption that amounts to thousands and in some cases millions of barrels of lost or deferred oil production annually. Timely detection of ESP developing problems will enhance the capability to timely and proactively attend and fix operational ESP issues that may cause ESP shutdowns. Early warning automated surveillance systems will significantly minimize production losses associated with ESP downtime.

Traditional ESP surveillance systems provide alarms when ESP performance signals drift out of a preset range (i.e., low pressure, high current, high temperature); however, finding the root cause of the problem requires time, engineering expertise and sometimes the use of specialized tools to properly diagnose the underlying abnormal condition. After years of experience, highly trained ESP surveillance engineers are able to diagnose ESP problems by cross-referencing performance signals and finding patterns like slope increase, signal stability, unexpected step changes, etc. Pattern recognition is one of the most common applications of artificial intelligence (AI) and machine learning algorithms, which can be naturally trained to automatically detect patterns and irregularities in ESP data.

This paper presents an account of the development and testing of an ESP surveillance system based on AI with the ability to automatically detect and correctly diagnose ESP problems in the early stages of development.
Long Encapsulated MLE Tube for Dual ESP
Authors: Bashmal Omar Mohammed , Mahmoud Akram Mohammed
Published: October 2022

Increase the Electrical Submersible Pump (ESP) run life is the main goal of any operator company specially in offshore fields where the expense of ESP replacement, including workover costs and deferred production are high. Early ESP failure in harsh fields has led to look for reliable system in each of ESP parts including the Motor Lead Extension (MLE).

Encapsulated MLE has been developed in the last 3 years and has proven to extend the run life over the stander MLE. The successful results had led the operators to ask to develop the encapsulated MLE to be deployed in Dual ESP completion. The lower ESP in Dual completion requires a total of 350-400 ft of encapsulated MLE where the existing one is only 185 ft from the Motor to the packer.

Increasing the length to double comes with many of engineering constrains and other factors in manufacturing process and handling for such a long metal tubes which require a lot of research and development.

Eventually, all those challenges have been resolved and overcome and product is ready for installation very soon.

Also, installation procedure has been developed to insure safe handling and address all the risks. utilizing the encapsulated MLE in dual ESP completion in both upper and Lowe system will result in substantial cost saving and double the benefit from the dual ESP system specially in harsh offshore wells.

This paper demonstrates in detail the development of the MLE, seal and motor in different phases to improve the sealing design. In addition to the manufacturing process and testing before release the product to field along with the installation, and handling procedure in a dual ESP system.
Physical Testing of a High-Speed Helico-Axial Pump for High-GVF Operation
Authors: Ejim Chidirim Enoch , Xiao Jinjiang , Lee Woon Yung , Zabala Wilson Andres
Published: October 2022

High-speed rotordynamic pump operation for downhole or surface production is required and also beneficial to handle very high gas volume fraction (GVF) flows. Operating speeds of these pumps can be in excess of twice those of conventional pumps. This study presents results of a high-speed helico-axial pump (HAP) operating satisfactorily at intake GVFs up to 97%. The findings increase capabilities of field engineers and operators to boost and maximize production from high gas-content wells.

The HAP tested had a housing outer diameter of 4.00-inch and operated at a rotational speed of 6000 revolutions per minutes (RPM). Air and water were the test fluids with the water volume flow rate held constant at 63 and 143 barrels per day (BPD), while the air volume flow rate at pump intake was varied from 550 to 3480 BPD, respectively. Intake pressures varied from 14 to 76 psig, with average temperature through the HAP of 20°C. The corresponding discharge pressures and pressure boosts were recorded for each test point of observed stable pump operation.

The results showed that the HAP had stable operation during the tests for intake GVF range from 85% to 97%. Pump discharge pressures for this range of high intake GVF varied from 21 to 89 psig. The corresponding boost pressures across the HAP all had positive magnitudes indicating that at such high- speeds, the HAP was still able to add energy to the fluid even with the high gas content at intake. Analysis at fixed intake pressure with varying GVFs showed that the pressure boost decreased with increasing intake GVF. For instance, at 33 psig intake pressure, an 11% increase in intake GVF from 85% to about 95%, decreased the HAP pressure boost by about 21%. In conclusion, running a HAP at high speeds with suitable component features can result in stable pump operation and enhanced pressure boosting in high- GVF flows. The findings from this test indicates the HAP potentially has a wide operating envelope and can be optimized and scaled up to meet field production requirements.

This study mainly highlights the importance of operating HAPs at high speeds of up to 6000 RPM. The wider operating envelope of the HAP provides a potential application to handle more gas in the field. This architecture opens up opportunities for field operators, and engineering personnel to maximize hydrocarbon production from their very high-gas content field assets, thereby increasing the economic bottom-line for the stakeholders.
Success Story of Retrieval and Reinstallation of the First New Technology Rigless Cable Deployed ESP System
Authors: Winarno Mulad B , Eissa Mohammad A , Mutairi Khaled M
Published: October 2022

The technologies for rigless electric submersible pump (ESP) deployment were introduced in the oil industry to reduce expenditure during ESP replacement. Most of the technology is used to avoid rig utilization, which will reduce significant cost and safety risk during operations. At the same time, production restoration will be faster since some wellsite job preparation, such as for flowline strip-out and re-manifold, can be eliminated.

The new cable rigless deployed ESP system was successfully deployed and put on stream for the first time worldwide. The system has a unique concept and components, which consist of a specially designed cable hanger and coiled tubing. The cable hanger design offers cable isolation while providing a nonrestricted flow through the flow path built into the body of spool. The coiled tubing was manufactured to have resistance to H2S and CO2 as well as for isolating the cable from any corrosive fluid from the well.

Part of the technology assessment was to ensure the system should be able to retrieve and redeploy riglessly. A rigless job successfully retrieved and reinstalled the ESP after the pump had been on operation for more than 2 years. The most challenging operation is the killing procedure since the operation deals with high fluid losses while the gas from the well can be released at any time. Job preparation is key for success during retrieval activities, which involve a special study to find the proper kill fluid selection to control the well during activities. The kill fluid should be able to pump through the ESP, which is nondamaging for the formation and provides adequate weight to control the pressure and fluid losses.

This paper will share the experience from concept, design, field implementation planning and technical challenges, and lessons learned during preparation and installation.
A Study on the Influence of Social Structural Factors on Crime Phenomena: Application of panel regression analysis using panel data by city and province
Authors:   Korean Association of Public Safety and Criminal Justice, Kwon Joon-Sung
Published: October 2022

As crime began to be viewed as a social structural problem, away from the perspective of limited in individual propensity, criminology of perspective began to develop to prevent crime at the social level. In the case of these social structural characteristics, they change according to time and environment, and the influencing factors disappear or are newly revealed, so research needs to be continuously conducted according to the temporal and spatial flow. Despite the characteristics of social phenomena that require simultaneous consideration of spatio-temporal characteristics, domestic crime research tends to focus on spatial characteristics. Of course, in recent years, a method of explaining a crime phenomenon by simultaneously considering spatio-temporal characteristics has been attempted, but it is still insufficient. Therefore, this study aims to examine the effect of social disintegration factors on crime occurrence by securing data related to the social structure of the KOSIS and data on crime statistics of the National Police Agency from 2015 to 2020. Furthermore, juvenile crimes often show different influencing factors from adult crimes due to their timing characteristics, so we tried to examine their characteristics compared to all crimes.
As a result of the study, it was confirmed that housing instability, ethnic heterogeneity, and female householder ratio in Korea affect crime, and in the case of juvenile crime, there was no effect of social dissolution factors, and the ratio of row/multi-family houses had a significant effect.
The Overlap between Repeat Victimization and Repeat Offending: Focusing on Time Spent on the Computer and Antisocial Propensity
Authors:   Korean Association of Public Safety and Criminal Justice, Park Yeoju
Published: October 2022

The current study aims to 1) identify similarities and differences among the inexperienced, repeat victim, repeat offending, and repeat overlap groups, 2) explore the impact of computer use on each group, and 3) account for the moderating effect of antisocial propensity on the impact of computer use on each group. Using the first two years of the Korean Youth Panel Survey, adolescents were classified as the ‘inexperienced' (n=618), ‘repeat-victimization' (n=777), 'repeat-offending’ (n=522), and ‘repeat-overlap group’ (n=1,101) groups.
The results showed that the inexperienced group was similar to the repeat-victimization groups, and the repeat-offending group was similar to the repeat-overlap group in terms of time spent on the computer, indicating the connection between computer use and offending. The overlap group was much higher than other groups in terms of computer use, antisocial propensity, and the sources of stress. Multinomial logistic regression analysis revealed that victimization experience was the predictor of repeat victimization, repeat offending, and repeat overlap. Past perpetrators of crime and time spent on the computer were predictors of repeat-offending and repeat-overlap. Also, the time spent on the computer has a greater effect on repeat-offending and repeat-overlap groups with a high antisocial propensity, revealing a moderating effect. Policy implications to prevent repeat victimization and repeat offending are suggested.
The Effect of Adult Cyber Space Usage Time on the Experience of Cyber Violence: The Mediating Effect of Contact Experience with Harmful Content Moderated by Problematic Attitude to Cyber Violence
Authors:   Korean Association of Public Safety and Criminal Justice, Park Ju ae , Cho Young il
Published: October 2022

Cyber Violence in adults is considered a serious social problem, and this study was conducted with the aim of suggesting effective measures to reduce adult cyber violence. In this study, the mediating effect of the harmful content contact experience controlled by the problematic attitude toward cyber violence was verified in the relationship between cyber space usage time and online violence experience for adults. To this end, secondary data analysis was conducted using the ‘2020 Cyber Violence Survey’ conducted by the Korea Intelligence Information Society Promotion Agency. As a result of the study, first, adult cyber space usage time had a significant positive (+) influence on cyber violence experience. Second, the experience of contacting harmful content positively mediated the relationship. Third, the problematic attitude of adults toward cyber violence adjusted the relationship between the experience of contacting harmful content and the experience of cyber violence. Fourth, the problematic attitude toward cyber violence significantly adjusted the influence of adults' use of cyberspace on cyber violence experience by mediating the contact experience of harmful content. Specifically, in the adult group with a high problematic attitude toward cyber violence, the cyber violence decreased as the time to use cyber space increased. The results of this study emphasize the importance of problematic attitudes toward cyber violence and contacting harmful content in understanding cyber violence in adults. Therefore, it is necessary to provide a real-name system for using harmful content and a warning notice to reduce contact with harmful content by adults. In addition, it is necessary to reduce the supply of harmful contents by blocking and reporting unauthorized harmful contents using big data or AI. Finally, cyber violence education programs for adults should be in place so that adults can have a problematic attitude toward cyber violence It is expected that this will be an effective countermeasure to the growing problem of adult cyber violence.
Associations between Cyber Ethics Eduction of Youth and Cyber Violence in South Korea
Authors:   Korean Association of Public Safety and Criminal Justice, Lee Joo Young , Cho Youn Oh
Published: October 2022

The purpose of this study is to empirically reveal the relationship between cyber ethic education and cyber-violence for teenagers. Recently, the government has provided various youth cyber ethic education, and it has not been sufficiently verified whether these efforts have actually led to the prevention of cyber-violence. Therefore, this study focused on confirming the relationship between cyber ethic education and youth cyber-violence using data from 'Survey on Cyber Violence and Adolescents' collected by Korean Institute of criminology and justice. As a study using secondary data, this data includes a total of 5,358 youth data. As a result of examining the data by independent sample t-test and multiple regression analysis, it was found that adolescents who experienced cyber ethic education had significantly lower scores (average) of cyber-violence than general youth groups who did not. However, as a result of conducting multiple regression analysis after controlling mental and psychological factors, social and relational factors, technical factors, and demographic factors corresponding to youth cyber-violence factors, it was confirmed that the cyber ethic education experience did not significantly affect the cyber-violence. In conclusion, a new level of cyber violence prevention activities and education is needed that consider non-educational factors such as poor companions and interrelationships between peer groups, along with a re-examination of cyber ethic education in the future.