bluuebunny/crossref_metadata_2025 huggingface dataset:
Neglected Anterior Dislocation of Hip Managed with Total Hip Arthroplasty Using Dual Approach: A Case Report and Review of Literature
Authors:   Department of Orthopaedics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India., Mishra Dipun , Jain Mantu ,   Department of Orthopaedics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India., Tripathy Sujit Kumar ,   Department of Orthopaedics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India., Singh Amit Kumar ,   Department of Orthopaedics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India., Kumar Avinish ,   Department of Orthopaedics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.
Published: August 2024

Introduction: Traumatic hip dislocations frequently result from road traffic accidents and are prevalent in developing nations. Untreated dislocations either due to ignorance or lack of proper treatment become more challenging to manage and have an increased likelihood of developing avascular necrosis (AVN). Over time, closed methods of reduction become impractical, and if the waiting period surpasses 3 months, open reduction likewise becomes unworkable. Anterior dislocations are less common than posterior dislocations, accounting for a frequency of 7–13% of all hip dislocations. Neglected anterior hip dislocations are extremely rare, and therefore, there is a paucity of information about the management of these dislocations and associated injuries. The available treatment options for these particular situations are total hip arthroplasty (THA), Girdlestone surgery, or hip arthrodesis. Case Report: We describe the case of a 49-year-old male who presented to our hospital with a neglected anterior dislocation of the hip. The patient disclosed a history of hip trauma 8 months ago, initially receiving conservative management. However, due to persistent pain and functional limitations, he sought further medical attention. A physical examination, radiographic evaluation, and computed tomography (CT) scan confirmed the diagnosis. The patient underwent THA using dual anterior and posterior approaches, followed by a comprehensive rehabilitation program. Conclusion: Anterior dislocation of the hip is a relatively rare condition, and its neglected presentation is even rarer. This case highlights the importance of prompt diagnosis and early intervention in neglected anterior hip dislocations to minimize complications and optimize patient outcomes. Keywords:Neglected, Anterior dislocation, Total hip arthroplasty
Minimally Invasive Resection of a Lumbar Spine Vertebral Osteoid Osteoma: A Case Report
Authors:   Department of Orthopaedic Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, United States of America,, Cleary Liam M , Hendrix Christopher G ,   Department of Orthopaedic Surgery, Institute for Orthopaedics and Neurosciences, Carilion Clinic, Roanoke, Virginia, United States of America., Goheer Haseeb E ,   Department of Orthopaedic Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, United States of America,, Schmitt Mark W ,   Department of Orthopaedic Surgery, Institute for Orthopaedics and Neurosciences, Carilion Clinic, Roanoke, Virginia, United States of America., Carmouche Jonathan J ,   Department of Orthopaedic Surgery, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, United States of America, Department of Orthopaedic Surgery, Institute for Orthopaedics and Neurosciences, Carilion Clinic, Roanoke, Virginia, United States of America.
Published: August 2024

Introduction: Open surgical resection involves extended recovery and soft-tissue damage, prompting the development and increasing adoption of less invasive techniques. While Mast Quadrant tubular retractors have been used in spine fusion and endoscopic procedures, their application in minimally invasive tumor resections has not been widely discussed. This report showcases the use of a Mast Quadrant tubular retractor for the minimally invasive resection of a lumbar vertebral body osteoid osteoma. Case Report: A 38-year-old Caucasian man, suffering from six years of lumbar pain and refractory osteoid osteoma, underwent resection using a minimally invasive lateral approach with a Mast Quadrant tubular retractor. This came after the failure of less invasive treatment modalities, including facet injections and radiofrequency facet ablation. Conclusion: Vertebral body osteoid osteomas can be resected with no recurrence using a tubular retractor to spare paravertebral muscles and the morbidity of open resection, allowing patients an earlier return to work and activity. Keywords: Osteoid osteoma, minimally invasive, spine, tumor, tubular retractor, lumbar, case report, vertebral body.
Mechanical Failure of SIGMA Total Condylar-III Revision Total Knee System Modular Femoral Component Due to Bolt Screw Breakage – Our Experience in Overcoming Broken Component Incarceration
Authors:   Department of Orthopaedics, Breach Candy, Cumballa Hill, Mumbai, Maharashtra, India,, Patel Harsh , George George K ,   Department of Orthopaedics, Breach Candy, Cumballa Hill, Mumbai, Maharashtra, India,, Taha Zyad Ayman ,   Department of Orthopaedics, University Hospital of Florence, Italy., Mullaji Arun ,   Department of Orthopaedics, Breach Candy, Cumballa Hill, Mumbai, Maharashtra, India,
Published: August 2024

Introduction: The rising use of modular implants in revision total knee arthroplasty offers surgeons greater flexibility in addressing bone defects and achieving uniform gaps compared to monoblock counterparts. However, this enhanced functionality brings specific complications such as loosening and breakage at component coupling sites, leading to challenges due to mechanical failures and suboptimal fixation. Extracting broken components during revision surgery poses a significant challenge, prompting innovative techniques to facilitate extraction. Case Report: We present a rare case of modular femoral component mechanical failure in a 69-year-old male, manifesting as left knee instability and acute pain while walking 4 years following revision of total knee replacement due to infection. Radiographs revealed mechanical failure of the Sigma Total Condylar-III Revision prosthesis bolt, with intra-operative extraction efforts complicated by a lodged broken bolt. Despite initial challenges, successful extraction was achieved using mosquito forceps and a universal nail extractor. Conclusion: This case highlights the importance of documenting rare instances of mechanical failure in modular implants, emphasizing the need to understand prevalence rates and various surgical techniques for implant extraction. Our experience underscores the utility of the universal nail extractor as a valuable tool in managing difficult implant removal during revision surgery. Surgeons must remain vigilant and innovative in addressing challenges encountered during modular implant revisions. Keywords: Modular implants, revision total knee arthroplasty, mechanical failure, and implant extraction.
Atypical Presentation of Multiple Myeloma Affecting Appendicular Skeleton Associated with Pathological Neck of Femur and Proximal Humerus Fractures – A Case Report
Authors:   Department of Orthopaedics, TNMC and BYL Nair Charitable Hospital, Mumbai, Maharashtra, India., Avhad Tanmay Anil , Bhangde Saurabh ,   Department of Orthopaedics, TNMC and BYL Nair Charitable Hospital, Mumbai, Maharashtra, India.
Published: August 2024

Introduction: The increasing incidence of atraumatic neck of femur (NOF) fractures, often linked to age-related bone weakening, is a notable clinical trend. This case report highlights a 72-year-old male presenting with NOF and proximal humerus fractures post-trivial fall, revealing lytic lesions suggestive of multiple myeloma (MM). Despite inconclusive skeletal and metabolic evaluations, a comprehensive surgical approach confirmed MM, emphasizing the importance of thorough diagnostic and therapeutic management in complex cases. Case Report: A 72-year-old male presented with a trivial fall resulting in hip and shoulder trauma, revealing right transcervical NOF and proximal humerus fractures on X-rays, alongside multiple lytic lesions suggesting MM. Despite inconclusive metabolic evaluations, conservative management was pursued for the humerus fracture, while a complex surgical approach involving curettage and cemented bipolar hemiarthroplasty was undertaken for the femur fracture, confirming MM on histopathology. Conclusion: Evaluating atypical MM manifestations in the appendicular skeleton requires comprehensive assessment and diagnostic procedures to influence outcomes and improve quality of life. Managing suspected pathological fractures involves detailed evaluation and surgical planning, highlighting the importance of collaboration among different specialties. Keywords: Multiple myeloma, hematology, femur fracture, humerus fracture, pathological fracture.
Candida parapsilosis in Late Prosthetic Joint Infections Among Immunocompetent Patients: A Case Series
Authors:   Department of Orthopaedic Surgery, Believers Church Medical College Hospital, Pathanamthitta, Kerala, India., George James C , Chittaranjan B Samuel ,   Department of Orthopaedic Surgery, Believers Church Medical College Hospital, Pathanamthitta, Kerala, India., Babu Subin ,   Department of Orthopaedic Surgery, Believers Church Medical College Hospital, Pathanamthitta, Kerala, India., George Koshy ,   Department of Orthopaedic Surgery, Believers Church Medical College Hospital, Pathanamthitta, Kerala, India.
Published: August 2024

Introduction: Fungal prosthetic joint infections (PJIs) are very rare in immunocompetent patients. PJI can present either early, delayed, or as late chronic infections. Diagnosis of fungal PJI presenting late is challenging due to the difficulty in isolation as well as the clinical presentation very similar to an aseptic loosening. There are no clear guidelines regarding the management of these patients. Case series: We present five cases of Candida parapsilosis PJI presenting as late chronic infections. All five patients were culture-negative preoperatively, immunocompetent, and with good soft-tissue condition. There were three infected knee prostheses and two infected hip hemiarthroplasty. All of them were treated with extensive debridement, meticulous sampling, and extended culture. We treated all of them with long-term antifungals without any disease reactivation or recurrence till the last follow-up. Conclusion: Fungal infection should be suspected in immunocompetent patients presenting early with features of aseptic loosening but without typical signs of periprosthetic infection. Revision with long-term suppressive therapy can give good results in these patients. Keywords: Candida, paraspilosis, revision, hemiarthroplasty, fluconazole, culture-negative infection, knee arthroplasty.
Collective co-production of health and care services – a systematic review of research from the United Kingdom, Germany and Norway
Authors: Trætteberg Håkon Solbu , Ervik Rune
Published: August 2024

This article reviews all published English-language articles concerning collective co-production of welfare services in the United Kingdom, Germany and Norway, which are countries representing different welfare regimes. The review identifies facilitators for collective co-production and inductively identifies four themes that are important for successful collective co-production: (1) the motivation individuals have for engaging in collective co-production, (2) the institutional contextual conditions for co-production, (3) the relational conditions for co-production, and (4) the facilitation of different effects of co-production. No studies have investigated why public sector entities or voluntary sector organisations choose to engage in co-production, and we lack studies that compare sectors with different institutional settings.
Political Landscapes and Rival Cultural Landscapes in Spanish Louisiana: Antoine Sarrasin and la Cyprière
Authors: Evans Tessa
Published: August 2024

abstract: This article examines the life of Antoine Sarrasin—an important yet understudied figure in early American history—and his role in organizing the 1795 Pointe Coupée rebellion to abolish slavery in Spanish Louisiana. Proposing the idea of rival cultural landscapes created by freed and enslaved people that deliberately challenged the political landscapes shaped by their Spanish rulers, this article traces the creation of a particular Black geographic experience and analyzes how Sarrasin creatively utilized a common feature of Spanish plantations—the cypress swamp ( la cyprière )—to secretly plan an elaborate, multiracial rebellion influenced by his knowledge of Atlantic revolutionary activity. His intimate understanding of the cypress swamps reveals a historical familiarity and mastery of the natural world that many enslaved and free people of African descent created during the eighteenth and nineteenth centuries. This article contributes to current interdisciplinary scholarship that maps Black geographic experiences throughout the diaspora and recovers routes and paths that enslaved and free people of African descent “invisibly” marked on the landscape to contest White geographic domination. Though many others acted similarly to Sarrasin, their stories have been lost to the modern archive. Finding ways to creatively and critically engage with the archive to recover the stories of those like Sarrasin is one way we can tell a more inclusive history of early America.
From Irrigation to Hydropower: The Political Economy of a Multipurpose Reservoir in Interwar South India
Authors: Ramesh Aditya
Published: August 2024

Abstract: In the aftermath of World War I, the government of India developed a new systematic policy for harnessing rivers to produce hydropower. The policy, created amid shortages of chemical products relying on electrolysis imported largely from Germany, handed over the actual task of surveying for hydropower potential and building plants to provincial or state-level administrative bodies. This article focuses on one of India's first multipurpose reservoirs, a reservoir for irrigation and production of hydroelectricity that was built on the Cauvery River in southern India during the interwar era. It unfolds in three parts. First, it maps the complex landscape of water in southern India, its transformation under colonialism for the purpose of enhancing irrigation, and the government of India's commitment, after World War I, to using rivers for the new purpose of producing hydroelectricity. Second, the article explores the visions of newly appointed hydropower engineers in the interwar era, who envisioned a hydroelectricity-powered economy that would render agriculture, industry, and cities more productive. Third, it shows that in the making of colonial India's first multipurpose dam, its canal irrigation function came into conflict with its function of producing hydropower. In doing so, the article highlights how native landholders were able to limit the production of hydroelectricity by mobilizing arguments around traditions of cultivation, agrarian revenue, the seasonality of irrigation, and agricultural science.
The Unsituated Comedy
Authors: Gray Jonathan , Gershon Daphne
Published: August 2024

ABSTRACT: This article examines how multiple American situation comedies from the past decade are considerably less situated, with settings, characters, narratives, and humor characterized by a sense of fluidity and movement. As we detail this new subgenre, which we dub the unsituated comedy , we outline the situation of situation comedy, tracing its central role in the construction of the traditional sitcom, and how the emergence of unsituatedness can trouble some of the assumptions and ideological conventions commonly associated with American TV comedy series.
Reckoning with a Feminist Experimental Film Collective: Khaidu in 1970s South Korea
Authors: Kim Hieyoon
Published: August 2024

ABSTRACT: Combining analyses of films and published and unpublished sources as well as filmmakers’ memories, this article claims a space for the first South Korean women’s film collective, Khaidu, and discusses its contribution to feminist experimental cinema in global film history. By tracing the collective’s objective and its realization, the article concludes that Khaidu articulated previously unheard ideas about cinema and feminism into practice and launched new forms of activism.
Mitochondrial DNA Variation in Southern Tunisian Populations
Authors: Capocasa Marco , Battaggia Cinzia , Cancellieri Emanuele , Lisi Alessandro , Polimanti Mattia , Boukhchim Nouri , Bisol Giovanni Destro , di Lernia Savino , Anagnostou Paolo
Published: August 2024

abstract: Due to its complex history of migrations and colonization of African, European, and Asian people, the Tunisian territory is an ideal area to study the effects of cultural change on the genetic structure of human populations. This study investigated genetic variation in the mitochondrial DNA of Tunisian populations to detect the possible impact of recent historical events on their gene pool. Two Arab and three Berber communities were analyzed using a comparison data set of 45 other populations comprising African, Arabian, Asian, European, and Near Eastern groups. Results were compared with those produced using a large panel of autosomal single-nucleotide polymorphisms. We observed a slight but important difference between the populations that inhabit the southern and central-northern areas of Tunisia. Furthermore, robust signatures of genetic isolation were detected in two Berber populations (Nouvelle Zraoua and Tamezret) and in the R’Baya people, a seminomadic Arab group. This investigation suggests that the genetic structure of investigated southern Tunisian populations retains signatures of historical events that occurred between the 7th and 17th centuries, particularly the trans-Saharan slave trade and the emigration of Berbers in remote areas of the south during the Arab conquest.
Space-time description of atoms part II: Structure of photon and intrinsic structure of leptons and quarks
Authors: Trencevski Kostadin
Published: August 2024

This paper gives a model of the photon. It is small particle which belongs to two harmonic oscillators. The distances toward the centers of the harmonic oscillators are of type $r\cos (wt)$ and $r\sin (wt)$,
where $r=\lambda /\pi$,
while the velocities toward the centers are $c\sin (wt)$ and $-c\cos (wt)$. The small particle moves with velocity $c$ on a circle with radius $r/2$, whose endpoints are the centers of the oscillators.
The mass of the photon is non-zero according to itself as observer determined by $m=h\nu /c^2$. We are not able to measure that mass because the photon is displaced in time.
This time displacement is calculated, and also the relative speed of time with respect to our speed of time.
The speed of the photon is calculated to be $c$ as non-inertial velocity, and the angular momentum is calculated that is $\pm \hbar$. The electromagnetic field of the photons is derived.
Besides the electromagnetic field there appear the scalar (Tesla) waves.
The electron, positron, muon, tau and quarks consist of 4 photons and one neutrino or anti-neutrino, and their electromagnetic fields are consequences of the electromagnetic fields of the photons.
The intrinsic angular momentum of the electron is derived to be $\pm \hbar /2$, observed by the electron. The group of symmetries of the charge leptons and quarks is determined.
The gluons are introduced and also the Higgs particle, which consists of 8 gluons, 16 photons, 2 neutrinos and 2 anti-neutrinos.
Functional Link ANN based Models for fast QoT estimation on Multiband Optical Networks
Authors: Khare Prasunika , Costa Nelson , Napoli Antonio , Pedro João , Ruiz Marc , Velasco Luis
Published: August 2024

The adoption of multiband (MB) technology is critical to assure that the existing optical fiber infrastructure capacity can be fully exploited in a cost-effective way. In addition, the emergence of digital twin (DT) with smart and automated applications will enable more efficient use and planning of the network resources (e.g., optical transceivers, spectrum). For this last proposition to be achieved, fast and accurate lightpath quality-of-transmission (QoT) estimation is critical. To avoid using complex and time-consuming analytical methods (e.g., Split Step Fourier Method), we propose two novel machine-learning (ML) models for QoT prediction on MB C+L+S optical networks. The models are based on functional link artificial neural network (FLANN) structures which are known for their simplicity and ability to model linear and non-linear patterns, such as the ones introduced by impairments from fiber transmission. These models can be trained directly with in-phase and quadrature (IQ) constellation data or with the respective gaussian-based features. Using an optical link with variable span count, both FLANN models are benchmarked by deep neural network (DNN) based OCATA model and shown to be highly accurate in QoT estimation. In addition, the proposed models are able to significantly reduce the training time in comparison with the conventional split step methods and even DNN based OCATA, making them more adequate for applications with large data pools, such as a MB optical network.
Approach in inputs & outputs selection of Data Envelopment Analysis (DEA) efficiency measurement in hospitals: A systematic review
Authors: Zubir M. Zulfakhar , Noor A. Azimatun , Mohd Rizal A. M. , Harith A. Aziz , Abas M. Ihsanuddin , Zakaria Zuriyati , A. Bakar Anwar Fazal
Published: August 2024

The efficiency and productivity evaluation process commonly employs Data Envelopment Analysis (DEA) as a performance tool in numerous fields, such as the healthcare industry (hospitals). Therefore, this review examined various hospital-based DEA articles involving input and output variable selection approaches and the recent DEA developments. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology was utilised to extract 89 English articles containing empirical data between 2014 and 2022 from various databases (Web of Science, Scopus, PubMed, ScienceDirect, Springer Link, and Google Scholar). Furthermore, the DEA model parameters were determined using information from previous studies, while the approaches were identified narratively. This review grouped the approaches into four sections: literature review, data availability, systematic method, and expert judgement. An independent single strategy or a combination with other methods was then applied to these approaches. Consequently, the focus of this review on various methodologies employed in hospitals could limit its findings. Alternative approaches or techniques could be utilised to determine the input and output variables for a DEA analysis in a distinct area or based on different perspectives. The DEA application trend was also significantly similar to that of previous studies. Meanwhile, insufficient data was observed to support the usability of any DEA model in terms of fitting all model parameters. Therefore, several recommendations and methodological principles for DEA were proposed after analysing the existing literature.
Illumination Intelligent Adaptation and Analysis Framework: A comprehensive solution for enhancing nighttime driving fatigue monitoring
Authors: Tian Zenghui , Albakry Nur Safinas , Du Yinghui
Published: August 2024

Nighttime driving presents a critical challenge to road safety due to insufficient lighting and increased risk of driver fatigue. Existing methods for monitoring driver fatigue, mainly focusing on behavioral analysis and biometric monitoring, face significant challenges under low-light conditions. Their effectiveness, especially in dynamic lighting environments, is limited by their dependency on specific environmental conditions and active driver participation, leading to reduced accuracy and practicality in real-world scenarios. This study introduces a novel ‘Illumination Intelligent Adaptation and Analysis Framework (IIAAF)’, aimed at addressing these limitations and enhancing the accuracy and practicality of driver fatigue monitoring under nighttime low-light conditions. The IIAAF framework employs a multidimensional technology integration, including comprehensive body posture analysis and facial fatigue feature detection, per-pixel dynamic illumination adjustment technology, and a light variation feature learning system based on Convolutional Neural Networks (CNN) and time-series analysis. Through this integrated approach, the framework is capable of accurately capturing subtle fatigue signals in nighttime driving environments and adapting in real-time to rapid changes in lighting conditions. Experimental results on two independent datasets indicate that the IIAAF framework significantly improves the accuracy of fatigue detection under nighttime low-light conditions. This breakthrough not only enhances the effectiveness of driving assistance systems but also provides reliable scientific support for reducing the risk of accidents caused by fatigued driving. These research findings have significant theoretical and practical implications for advancing intelligent driving assistance technology and improving nighttime road safety.
A protocol for the longitudinal investigation of cancer related fatigue in head and neck cancer with an emphasis on the role of physical activity
Authors: Narasimhan Prahalad , Levy Andrew R. , Rogers Simon N. , Schache Andrew G. , Patterson Joanne M. , Williams Nefyn H. , Brooker Rachel C. , Midgley Adrian W.
Published: August 2024

Background and aim

Cancer related fatigue significantly impairs the ability to undertake sustained physical activity across the domains of daily living, work and recreation. The purpose of this study is to monitor cancer related fatigue and the factors affected or caused by it for 12 months in head and neck cancer patients following their diagnosis. Their perceptions of how fatigue might affect their activity levels in addition to identifying avenues to improve engagement with physical activity will be also explored.

Methods

A single centre longitudinal mixed-methods study will be conducted. Forty head and neck cancer patients will be recruited over 6 months following the confirmation of their treatment plan, after which fatigue and physical activity will be assessed at four time points over 12 months. Additionally, other factors which influence fatigue such as body composition, blood counts, systemic inflammation levels, haemoglobin concentration, thyroid function, sleep quality, cardiorespiratory fitness and upper and lower extremity strength will be measured to understand how the multifactorial problem of fatigue may evolve over time and influence physical activity levels. Semi-structured interviews will be conducted after treatment completion and at end of twelve months which will analyse the participants fatigue experiences, understand how their perceived fatigue may have impacted physical activity and report the factors which may improve engagement with physical activity during cancer. Quantitative data will be analysed and reported using standard descriptive statistics and post-hoc pairwise comparisons. The changes in outcome measures across time will be analysed using the MIXED procedure in SPSS software. Statistical significance will be accepted at p<0.05. Qualitative data will be analysed using the Interpretative Phenomenological Approach using the NVivo software.

Discussion

The results from this study may help inform the planning and delivery of appropriately timed interventions for the management of cancer related fatigue.
Cracking the data journalism code in Latin America: Activism, transparency and democracy fuel the adoption of technology
Authors: Magaña María Isabel , García-Perdomo Víctor
Published: August 2024

The impacts and transformation of data journalism have been widely studied in the Global North but remain understudied in the Global South despite the growth of such practice in regions like Africa and Latin America. This study bridges that gap by exploring how adopting data, software and coding have redefined journalistic values and practices in top-tier units in Latin America. Drawing from the social construction of technology, this mixed-methods research combines insights from fourteen in-depth interviews with journalists from leading data teams and a content analysis of 210 of their pieces. Findings reveal that the primary motivation for adopting data journalism is a profound commitment to democracy in a historically challenging context, evidenced by an emphasis on transparency and collaboration that pushes the boundaries between reporting and activism. While journalists exhibit an alignment in values and motivation, the organizational influence of their media affects how those values manifest in their end products. This research contributes to the data journalism discourse and champions the need to incorporate perspectives from the Global South to enrich and de-westernize academic literature.
Epistemologia Genética na Relação Período-Luminosidade de Henrietta Leavitt
Authors: Almeida Silvério Bárbara , Sitko Camila Maria , Polizel Alexandre Luiz
Published: August 2024

A Epistemologia Genética avalia os processos de aprendizagem que toda pessoa passa ao apreender um novo conceito, a qual usualmente se associa ao desenvolvimento infantil, mas não se limita a este. Neste trabalho, como forma de exemplificar tal processo para além do desenvolvimento da criança, propõe-se apresentar um estudo de caso, sob a ótica da Epistemologia Genética de Piaget, acerca dos processos de aprendizagem pelos quais Henrietta Leavitt passou ao desenvolver a Relação Período-Luminosidade das estrelas variáveis cefeidas. Dessa forma, ao passo em que se trabalha o desenvolvimento de tal relação, evidencia-se também a participação de uma mulher na construção da Astronomia. Foi realizada uma pesquisa qualitativa de cunho exploratório, a partir das bases documentais-bibliográficas escritas pela astrônoma. Foram analisados dois trabalhos escritos por ela, partindo de dois movimentos: apresentação descritiva do caso da astrônoma e desenvolvimento da compreensão da Relação Período-Luminosidade (RPL) das estrelas variáveis cefeidas, seguido da apresentação de uma analítica hermenêutico-conceitual ancorada nos conceitos piagetianos. Com as análises realizadas, foi possível identificar as fases do conhecimento segundo Piaget, mostrando uma técnica possível de ser utilizada da Epistemologia Genética para além do desenvolvimento infantil.
Spaceengine como ferramenta didática para o ensino de Astronomia:
Authors: Almeida Uiliam , Claudino Ferreira Roberto , Maria Hetkowski Tânia , Lemos Moreira Mariana , Oliveira Souza Ernande , Da Silva Cruz Maria Eduarda
Published: August 2024

O presente trabalho propôs uma Sequência Didática voltada ao 9° do Ensino Fundamental na área de ciências dentro do tema da Astronomia. Para desenvolve – lá adotamos como ferramenta didática principal o software astronômico SpaceEngine. Apresentamos a proposta no II Seminário Virtual de Astronomia da UESB, participaram como convidados docentes, discentes de várias universidades e estudantes do ensino médio. As habilidades da BNCC foram o ponto de partida para construção da sequência didática. Na apresentação mostramos como se executaria a dinâmica da proposta com a apresentação da parte operacional e didática da exploração do SpaceEngine aplicado ao conteúdo em tela.  Por fim, foi fornecido um questionário on-line para a coleta de dados. Os resultados analisados nesse artigo expressam as respostas de 22 estudantes de licenciatura e nelas indicam que a maioria dos participantes usariam a sequência didática em sua originalidade o que mostra que o objetivo da pesquisa foi alcançado de forma satisfatória. O trabalho gerou inúmeras possibilidades de ampliação e melhorias sugeridas pelos participantes convidados do evento.
Hydroponic nutrient solution to cultivate of parsley and cerbiatta lettuce
Authors: Oliveira Roberta Camargos , Ferraz Almeida Risely , Eduardo Santos José , Queiroz Luz José Magno
Published: August 2024

Species that provide phytonutrients and bioactive compounds, such as parsley and lettuce, have gained prominence in a scenario of searches and concerns about maintaining health. Cultivation systems that enhance production in quantity and quality are essential. In this context, the objective of this study was to evaluate the development of parsley and lettuce under nutrient solution concentrations and plant position in the hydroponic system. The experiment was carried out in a randomized block design with five replications, in a 4 x 3 factorial scheme using four nutrient solution concentrations (50, 75, 100 and 125%) and three positions of the plants in the hydroponic profiles (initial, intermediate and final). Results showed that rates between 75 and 100% of nutrient solution presented higher production of cerbiatta lettuce and parsley in the hydroponic production. Channel position did not influence the cerbiatta lettuce production, but it influences the production parsley. Based on results conclude that is necessary different management to production of cerbiatta lettuce and parsley in hydroponic solution.
Investigating the biological activity and biofilm inhibition of purified Pichia kudriavzevii killer toxin (PkKt) against pathogenic bacterial as a promising substance for food preservation
Authors: Noor Naji Hasan , Shatha Ali Shafiq , Zaid AkramThabit
Published: August 2024

Killer toxins (PkKT) produced by yeasts exhibit antimicrobial effects against pathogenic bacteria and fungi. This study aimed to extract, purify, and characterize the killer toxin from Pichia kudriavzevii killer toxin (PkKT) and evaluate its antimicrobial and anti-biofilm potential. PkKT was produced as a killer toxins and was purified through ammonium sulfate precipitation, ion exchange chromatography, and gel filtration. The purified PkKT showed a molecular weight of 36 kDa. Antimicrobial testing revealed significant inhibition against Staphylococcus aureus, Streptococcus pyogenes, Pseudomonas aeruginosa, Klebsiella pneumoniae, Listeria monocytogenes, Acinetobacter baumannii, Escherichia coli, and Candida albicans using well diffusion assays. The minimum inhibitory concentration (MIC) ranged from 16-128 ?g/mL, while the sub-MIC was determined to be 8-64 ?g/mL depending on the pathogen. At sub-MIC levels, PkKT exhibited a 66-89% reduction of biofilm formation in all tested species. S. aureus, S. pyogenes, and A. baumannii showed the highest MIC of 128 and 64 ?g/mL sub-MIC, while E. coli and K. pneumoniae were most susceptible with MIC of 16 ?g/mL and sub-MIC of 8 ?g/mL. In conclusion, the purified PkKT toxin displayed broad-spectrum antimicrobial and anti-biofilm activities against common healthcare-associated pathogens. These findings reveal the potential of PkKT as a therapeutic agent to prevent or treat biofilm-associated infections.
Singularities of spherical surface in R4
Authors: Liu Haiming , Hua Yuefeng , Li Wanzhen
Published: August 2024

In this article, we mainly study the geometric properties of spherical surface of a curve on a hypersurface

Σ

\Sigma

in four-dimensional Euclidean space. We define a family of tangent height functions of a curve on

Σ

\Sigma

as the main tool for research and combine the relevant knowledge of singularity theory. It is shown that there are three types of singularities of spherical surface, that is, in the local sense, the spherical surface is respectively diffeomorphic to the cuspidal edge, the swallowtail, and the cuspidal beaks. In addition, we give two examples of the spherical surface.
“Ia na escola alemã e de um dia pro outro fechou. E nós não sabíamos falar o português”: refletindo sobre as políticas linguísticas em contexto de língua minoritária
Authors: Pereira Fritzen Maristela
Published: August 2024

Pretende-se neste trabalho discutir as políticas linguísticas nacionais e locais, tendo como foco de análise o cenário sociolinguístico do Vale do Itajaí, SC. Busca-se chamar a atenção para o contexto intercultural da região, a fim de problematizar a educação que tem sido oferecida a crianças vindas de grupos de línguas minoritárias. Primeiramente será apresentada uma breve contextualização histórica da escolarização no município de Blumenau, SC. Em seguida, serão discutidos movimentos recentes de implementação de uma proposta de política linguística que teve início no município em 2002 e um dos seus projetos, o Projeto Escolas Bilíngues. Na sequência, será feita uma análise do Projeto à luz dos modelos e concepções de educação bilíngue (FREEMAN, 1998; HAMEL, 1989). Por fim, serão lançados alguns desafios para a escolarização em contextos de línguas de imigração, como forma de contribuir para o debate em torno das políticas linguísticas.
Modelos Conexionistas e o Debate Nativista
Authors: Behme Christina
Published: August 2024

Há mais de 50 anos, Noam Chomsky propôs que a aquisição da linguagem fosse um domínio específico e dependente de conhecimento inato. Esse artigo apresenta modelos computacionais de aquisição de linguagem que desafiam essa proposta. Modelos iniciais (e.g.Elman, 1991) mostraram que mecanismos não específicos à linguagem são capazes de simular aspectos da aquisição de linguagem. Modelos mais recentes, utilizando como input amostras de fala dirigida a crianças, têm tido sucesso em simular a performance de crianças em processo de aprendizagem da linguagem no que diz respeito tanto aos êxitos quanto às limitações delas (e.g., processamento de recursões de níveis mais altos). Além disso, muitos modelos computacionais atuais incorporam diretamente insights de modelos anteriores e de experiências realizadas com crianças. O trabalho com computadores tem apresentado o potencial de fornecer um modelo de aprendizagem de linguagem que não depende de mecanismos de domínio específico e sugere que a máxima chomskyana tenha de ser reavaliada.
Crenças e necessidades em relação à escrita em japonês: nos casos dos estudantes universitários brasileiros e portugueses
Authors: Mukai Yûki
Published: August 2024

Este estudo de cunho interpretativista e comparativo investiga as crenças e necessidades dos estudantes universitários brasileiros e portugueses de língua japonesa em relação à escrita. Os objetivos da pesquisa foram: a) investigar e identificar as crenças e necessidades dos participantes em relação à escrita; b) a partir destas, compreender as condutas atuais desses participantes; c) comparar e verificar as semelhanças e divergências entre as crenças, comportamentos e necessidades desses dois grupos. Para isso, baseamo-nos nos conceitos de crenças (ALVAREZ, 2007; BARCELOS, 2001, 2003a, 2004, 2006, 2007; CONCEIÇÃO, 2004; HORWITZ, 1987; KALAJA, 1995; MUKAI; CONCEIÇÃO, 2012; NONEMACHER, 2004; PAJARES, 1992; WENDEN, 1999; WOODS, 2003); processo de escrita (FLOWER; HAYES, 1981; SASAKI; HIROSE, 1996); escrita da língua japonesa (BASSETTI, 2006; FUKASAWA et al., 2001; YUI, 2005). A metodologia de investigação utilizada foi a pesquisa qualitativa e sua natureza foi um estudo de caso comparativo. Os participantes desta pesquisa foram 20 estudantes de japonês do nível básico, sendo 10 brasileiros (PB) da Universidade de Brasília e 10 portugueses (PP) da Universidade do Minho.
Caracterizando o bom aprendiz em língua materna
Authors: José Menegassi Renilson
Published: August 2024

Conhecer as características de um bom aprendiz em língua materna possibilita ao professor ampliar seus conhecimentos sobre o processo ensino-aprendizagem, alterar suas práticas teórica e pedagógica e auxiliar outros aprendizes. Para responder à questão “Quais as características de um bom aprendiz em língua materna?”, foi conduzida, em 1995, pesquisa no curso de Letras da UEM-PR, utilizando-se um de seus acadêmicos como sujeito de investigação. Os objetivos eram descobrir as características do bom aprendiz e refletir sobre suas implicações no ensino e aprendizagem de língua materna. O trabalho teve por suporte teórico a literatura pertinente à Lingüística Aplicada. Os resultados demonstraram a existência de quinze características, além das oito propostas pela literatura.
Learner rights and language teaching
Authors: Hammerly Hector
Published: August 2024

Baseado, em parte, nas propostas de outros pesquisadores, este trabalho debate a questão das necessidades e direitos dos alunos à aprendizagem de uma língua estrangeira. Esses direitos são vistos como inerentes ao ser humano e incluem cinco categorias: (1) direito a uma escolha curricular (incluindo o direito de escolhar uma língua ou determinadas habilidades de uma língua); (2) direito às condições que levam ao sucesso (incluindo professores e programas qualificados); (3) direito a ser assistido durante o curso (incluindo orientação sistemática, avaliação adequada e acesso a recursos lingüísticos); (4) direito a um ensino equilibrado e esclarecido (baseado num ecleticismo inteligente); (5) e direito à continuidade para a manutenção da língua (evitando interrupções nos estudos).
Você, o senhor, ou o quê?
Authors: Amarante de Mendonça Mendes Eliana
Published: August 2024

O estudo aborda a questão do uso das formas de tratamento em língua portuguesa. Os dados foram coletados em 25 horas de gravação de intervenções feitas em 10 mesas redondas e os debates subseqüentes, em que foram registradas 283 ocorrências de pronomes de tratamento. Os resultados mostraram que 78,1% dos pronomes de tratamento utilizados são você/vocês. Os dados do corpus indicaram, portanto, uma preferência expressiva pelo uso de tratamento informal, não tendo sido possível constatar que outros fatores determinem de forma marcada o uso dos pronomes de tratamento no português brasileiro.
As vozes e os efeitos de sentido da “prática” no discurso de professoras sobre sua formação
Authors: Bernadete Fernandes de Oliveira Maria
Published: August 2024

Desvendar a concepção de prática pedagógica e o conhecimento necessário à sua realização nas manifestações discursivas de professores constitui o objeto de investigação deste trabalho. Apoiamonos na teoria da enunciação, em sua vertente bakhtiniana, e na Escola Francesa de Análise do Discurso. Foram analisados relatos de experiências, do tipo memorial, produzidos por professoras licenciadas para o ensino de Primeiro Grau. A análise documental revela que a voz dominante nos discursos é aquela que atribui ao conhecimento da situação extra-escolar dos alunos uma importância relevante para uma prática pedagógica adequada. Evidencia-se também que a “voz” do conhecimento específico sobre as disciplinas que ministram é silenciada, ou pelo menos esquecida.
Padrões de oralidade presentes na explicação de textos na sala de aula
Authors: Auxiliadora Bezerra Maria
Published: August 2024

A língua falada e a escrita são consideradas como um continuum, em cujas extremidades encontramos os textos típicos de cada uma dessas modalidades, incluindo uma escala gradativa de formalismo. Assim, parece não serem as modalidades de língua, mas os tipos de textos e suas situações que determinam esse formalismo gradativo; daí a presença de traços informais em um discurso formal poder causar estranhamento. Este artigo objetiva mostrar como características da oralidade informal permeiam o discurso do professor de português no evento comunicativo de explicação de textos formais. Essas características, embora possam significar uma proximidade entre professor e aluno, podem também sinalizar uma falta de domínio da norma culta por parte do professor e, conseqüentemente, mais uma dificuldade para o ensino do texto escrito padrão.
O processo de elaboração de textos: interpretando o “passar a limpo”
Authors: Maria Hessel Silveira Rosa
Published: August 2024

Situando-se na vertente da análise dos processos de elaboração textual, o trabalho focaliza textos produzidos por alunos da 3a. série do 2o. grau, em uma situação de testagem de modelo de Concurso Vestibular, confrontando rascunhos e versões finais dos mesmos. Detém-se especificamente na análise das mudanças ocorridas entre a última forma do rascunho e o texto passado a limpo, constatando as várias dimensões envolvidas nas alterações e concluindo pela estreiteza de uma análise que, em primeiro lugar, veja o “passar a limpo” como mera tarefa de “higienização” do texto, e, em segundo lugar, conceba a escrita de textos pelos alunos como inteiramente determinada pelas imagens do professor corretor e da instituição escolar. Acena-se para a urgência da complexificação da análise do processo e para as contribuições que esse tipo de estudo possa trazer para a mesma.
A influência do "feedback" do professor nas revisões de seus alunos
Authors: Dellagnelo Adriana de Carvalho Kuerten
Published: August 2024

A partir de uma visão processual da escrita, instrutores de escritura, na intenção de ajudar seus alunos-escritores a fazer revisões eficientes, vêm os encorajando a escrever múltiplas versões de seus textos, bem como vêm tentando diferentes formas de responder a estes textos. Entretanto, o ‘feedback’ fornecido pelo professor parece ser uma forma bastante adotada por profissionais desta área. Dada a sua fundamental importância, o presente estudo visa propor um modelo analíti co para a correção de textos, composto por um conjunto de regras, referentes a conteúdo, forma, organização textual, gramática e aspectos mecânicos, as quais servem como parâmetro de análise para instrutores. O modelo proposto foi adotado em um grupo de 17 alunos universitários cursando a sexta fase do Curso de Letras-Inglês da UFSC. Os textos foram escritos em L2 (inglês). A produção textual constou de dois momentos: escritura de uma primeira versão e revisão da mesma com base no ‘feedback’ da professora. Trata-se, portanto, de 68 textos (34 pares). Os resultados revelam uma atitude positiva dos estudantes perante o uso da estratégia na medida em que estes responderam (ou pelo menos se esforçaram para responder) à maioria dos problemas apontados pela professora, introduzindo, assim, mudanças positivas nos textos revisados. As conclusões deste estudo nos levam a crer que o conjunto de regras ora sugerido possa contribuir para uma melhor capacitação de produção textual. Acredita-se que o modelo proposto possa ser utilizado em textos escritos em L1.
Marcação de tópico pela reordenação de constituintes no texto dissertativo
Authors: Teresinha Py Elichirigoity Maria
Published: August 2024

O artigo relata o resultado de investigação sobre o uso da reordenação dos constituintes e suas funções na construção de textos argumentativos que obtiveram as melhores notas no vestibular de 95/2 da Universidade Católica de Pelotas. Realiza um estudo quantitativo e, ao verificar a utilização, os tipos e a localização de estruturas diferentes de SVO no parágrafo e no texto, sugere a necessidade de uma retomada da estilística sintática e da retórica antiga, levando em conta as descobertas da pragmática do discurso em uma abordagem funcionalista, para a orientação da construção de textos autênticos na escola.
O sujeito do samba-enredo
Authors: Maria Nitsche Ortiz Elsa
Published: August 2024

O trabalho analisa, sob a perspectiva da análise do discurso, as estratégias lingüísticas usadas pelo sujeito do samba-enredo na tentativa de sua própria opacificação para burlar a censura imposta pelo regime da ditadura no Brasil, no período de 1964 a 1989. O sujeito do samba-enredo é definido não como um indivíduo que ocupa uma forma vazia da formação discursiva a que está assujeitado, mas como uma voz anônima e coletiva da própria formação ideológica carnavalesca. Partindo de um perspectiva foucaultiana, o trabalho esquematiza os lugares enunciativos ocupados pelo sujeito do samba-enredo, através dos quais ele se apresenta e constrói concomitantemente a representação do outro, de acordo com as referências espaço-temporais em que os sambaenredo atuam: o Carnaval, o Cotidiano e o Passado.