bluuebunny/crossref_metadata_2025 huggingface dataset:
Professeur·es sans profession
Authors: Ahmed Loubna Baba
Published: November 2024

Cet article porte sur les enseignant·es de Krump et l’élaboration de leurs propres normes d’enseignement au sein de la sous-culture. Comme d’autres danses dites « urbaines », la transmission du Krump intervient de manière informelle et non-académique. La communauté a construit son propre système de formation et de représentations du ou de la krumper enseignant·e. L’organe de la fam apparaît ainsi comme un substitut de l’école de danse. Au centre de cette structure hiérarchique se trouve la figure d’un·e big formateur·ice, à laquelle s’attache des imaginaires pédagogiques, esthétiques et relationnels spécifiques. Le propos de l’article s’appuie sur les témoignages de krumpers recueillis dans les communautés d’Île-de-France et de Berlin selon une méthode anthropologique.
The Development of Adult Education
Authors: Fındık Leyla Yılmaz
Published: November 2024

The concept of andragogy, first introduced by German educator Alexander Kapp in 1833, was later popularized by American educator Malcolm Knowles in the mid-20th century. Andragogy is defined as a learner-centered approach in adult education, where adults are viewed as autonomous and responsible for their own learning. This approach leverages the experiences of adult learners, integrating them into the educational process to enhance relevance and engagement. Adult education is typically problem-centered, focusing on knowledge and skills with immediate practical applications in personal and professional contexts. As a fundamental aspect of lifelong learning, adult education supports continuous development throughout an individual's life. It is delivered across various settings, including formal institutions, workplaces, and community organizations, and encompasses a wide range of subjects from basic literacy to advanced professional training. Adult education is designed to meet the diverse needs of adult learners.
Adult Learning Theories
Authors: Fındık Leyla Yılmaz
Published: November 2024

Learning theory encompasses conceptual frameworks that elucidate how individuals acquire, process, and retain knowledge and skills. These theories provide models for understanding not only learning mechanisms but also inform the development of educational practices for adult learners. They incorporate various perspectives, including cognitive, behavioral, and constructivist approaches, each offering distinct insights into the learning process. Adult learning theories have evolved in response to the recognition that adult learners possess distinct characteristics, needs, and motivations compared to younger learners. This evolution has been driven by an emphasis on autonomy, experience, and the practical application of learning. Andragogy emphasizes self-directed learning, the significance of life experiences, and the necessity for learning to be relevant and immediately applicable to adult learners. Experiential Learning Theory posits that adults learn most effectively through experience, involving a cyclical process of action, reflection, conceptualization, and experimentation.
Understanding Adult Education Through Learning Theory and Equity in Higher Education
Authors: Chasokela Doris , Mpofu Irene , Phuthi Nduduzo
Published: November 2024

Adult learners in higher education encounter unique barriers that can hinder their success. It is essential to examine adult education through the lenses of learning theory and equity. This chapter focuses on how frameworks like Transformative Learning Theory can assist educators and policymakers in identifying and overcoming obstacles faced by adult learners. Drawing on current Zimbabwean research and real-world examples, it discusses the impact of accessibility, diversity, and inclusion on adult learners' experiences. The chapter emphasizes how these learning theories can inform pedagogical strategies to promote equity and success, regardless of their backgrounds. Additionally, it explores emerging trends in adult education, including online learning, micro-credentialing, and workplace learning. By understanding these theories and trends, stakeholders can create a more inclusive educational environment that empowers adult learners to thrive, ultimately highlighting the need for a comprehensive approach to enhance learning outcomes for all students.
Optimizing Hot Forging of 38MnSiVS5 Steel: A Multi-Objective Approach with Grey-Fuzzy Method
Authors: Equbal Md. Israr , Kumari Archana , Ohdar Rajkumar
Published: November 2024

The present research focuses on the hot forging of 38MnSiVS5 micro-alloyed steel, examining the impact of key process variables, such as working temperature, deformation percentage and rate of cooling on mechanical properties, notably the ultimate tensile strength and impact energy. To optimize the process, Taguchi's parametric design, utilizing an orthogonal array in combination with grey relational analysis and fuzzy logic analysis, has been implemented. By applying grey-fuzzy logic analysis, the optimization of complex multiple responses is streamlined into a single grey-fuzzy reasoning grade. The study employs the Grey fuzzy logic method to concurrently optimize both responses. The grey-fuzzy reasoning grade serves as a performance index, aiding in the determination of the optimal process parameter settings for both the ultimate tensile strength and impact energy responses simultaneously.
Antifeedant Nanosuspension Formula of Tithonia diversifolia Leaf Extract by Emulsion Inverse Method to Control Crocidolomia pavonana Cabbage Pest Insect
Authors: Hermawan Wawan , Melanie Melanie , Maulidah Zulfa , Malini Desak Made , Miranti Mia , Madihah Madihah
Published: November 2024

The leaf extract from Tithonia diversifolia is recognized for its ability to deter feeding in various Lepidoptera insect pests, including the larvae of Crocidolomia pavonana. Presently, transformation efforts from conventional formulations into nano-based formulations for biopesticides exhibit enhanced effectiveness and efficiency. Utilizing a low-energy process, an inversion emulsion facilitates the dispersion of the extract suspension in an organic solvent into a water-immiscible solvent using a suitable surfactant. The forming nano-size droplets in water (t1, t2, t3, t4) are influenced by the ratio of surfactant and organic suspension (Water: Tween 80: Organic suspension). The emulsification method successfully formulated T. diversifolia leaf extract, into dispersed nano-size and submicron suspensions in water. The t3 formula exhibits the smallest nano-size dispersed in water (D=23.6 ± 39.6 nm; polydispersity index IP=0.702) and enhanced wettability, evident in the lower contact angle of the droplet on the cabbage leaf surface (49.4°) compare with the control group. The Phytochemicals confirmed by IR-spectra analysis identified the phenols, alkaloids, and steroids constituents of leaf extract, which are known to have antifeedant properties. The enhanced antifeedant properties of T. diversifolia nanosuspension against C. pavonana third-instar larvae demonstrated by the antifeedant test results showing that t3 is the most successful deterrent larvae feeding activity compared to the control (P<0.05), due to the highest total antifeedant coefficient (74.27%) in a category medium antifeedant activity, while the non-emulsification displayed the lowest antifeedant coefficient (25.36%) in a category as low antifeedant activity. T. diversifolia leaf extract with a nano-based formula succeeded resulting in dispersed nano-size and submicron suspension in aqueous media, thereby reducing surface tension and enhancing wettability on the leaf surface during application. The improved dispersion of antifeedant nanosuspension on the leaf surface results in more effective delivery to target insects.
Challenges in the use of natural flavorings and labeling compliance in meat preparations in the Umbria region (central Italy)
Authors: Di Bella Sara , Branciari Raffaella , Scoppetta Fausto , Leo Antonella , Haouet Naceur M. , Scoccia Eleonora , Framboas Marisa , Mercuri Maria Lucia , Roila Rossana , Ranucci David , Valiani Andrea
Published: November 2024

There is an increasing trend among food business operators to use natural flavorings in meat preparation to reduce microbial spoilage and extend the shelf life. The objective of this study was to evaluate the prevalence of the use of natural flavoring mixtures in meat preparation, the possible presence of additives in natural flavorings, and the assessment of any transfer of additives contained in natural flavorings into experimentally prepared beef burgers. Based on a preliminary survey conducted as part of the study, approximately 87% of establishments used natural flavoring mixtures in meat preparation. The same natural mixtures used by local industries were added to minced meat in order to produce experimental hamburgers. Citric acid was found in both natural flavoring mixtures ranging from 1760 mg/kg to 92,731 mg/kg and experimental burgers ranging from 57 mg/kg to 2248 mg/kg. Ascorbic acid was present in all natural flavoring mixtures from 260 mg/kg to 98,858 mg/kg but was recovered in three burgers up to 1075 mg/kg. Acetic acid was found in three flavoring mixtures (range 23,539-77,421 mg/kg) and transferred to three treated burgers (range 3063-3202 mg/kg). Nitrite was never found in hamburgers and only once in a natural flavoring mixture at a dose of 26 mg/kg, whereas nitrate was found in some natural flavoring mixtures up to 788 mg/kg but never in hamburgers. The study has raised some critical issues about the appropriate and conscious use of natural flavorings and the possible inadequate meat preparation labeling in the Umbria region.
Le cartelle veneziane del Museo di Storia Naturale di Milano
Authors: Teruzzi Giorgio
Published: November 2024

Centottanta anni fa, il 7 maggio 1838, veniva accolta dall’autorità municipale di Milano la donazione delle collezioni di Giuseppe De Cristoforis e Giorgio Jan che comprendevano minerali, fossili, campioni di zoologia e botanica, oltre a strumenti e libri. Era nato il Museo di Storia Naturale di Milano, ieri come oggi, il museo dei milanesi.
Il Giappone nelle collezioni storiche del Museo di Storia Naturale di Milano
Authors: Azuma Mami
Published: November 2024

Nel 2016 Italia e Giappone si apprestavano a festeggiare con una serie di eventi il 150° anniversario del “Trattato di amicizia e commercio”, firmato nel 1866.Essendo il Giappone paese d’origine della mia famiglia, l’interesse verso questa celebrazione ha destato subito il mio interesse, sia personale che professionale, sperando di trovare delle iniziative del Museo di Storia Naturale di Milano (MSNM) che potessero essere inserite nel calendario ufficiale degli eventi, coordinato dall’Ambasciata del Giappone a Roma.La presentazione della serie di campioni di legni giapponesi (Fig. 1) di Amerigo Hofmann1 sarebbe stato senza dubbio uno degli esempi della presenza di materiale proveniente dal Giappone nelle nostre collezioni museali. Altri argomenti proponibili dalla Sezione di Botanica, per sottolineare l’interesse verso la cultura giapponese, potevano essere facilmente individuati nell’ikebana2 e nella cerimonia del tè3, temi e dimostrazioni pratiche che però molte associazioni presenti e attive in tutta Italia da molti anni, in particolare a Milano, avrebbero sviluppato con la dovuta professionalità. [Continua]
Managing zoonotic infectious diseases in Africa: The key role approach
Authors: Latif Abdalla A.
Published: November 2024

No abstract available.
Genesis 15:1–6 and child adoption in Awkunanaw, Enugu state, Nigeria
Authors: Ugwuewo Chisom S. , Obiorah Mary J. , Chukwuma Onyekachi G.
Published: November 2024

Adoption is a global phenomenon, and many childless couples choose adoption because they cannot have children biologically. Over the years, legally approved orphanages have been a beacon of hope for prospective adoptive parents. However, in contemporary times, many childless couples have employed both legal and illegal means to have children. As a result, baby-making industries have become a lucrative business because it is a fast means for childless couples to have children. In the contemporary Awkunanaw, this practice has devalued socio-cultural practices and made the Awkunanaw society and her dwellers vulnerable to social vices. This study investigates the importance of adopting a child from a known background other than a strange one. Genesis 15: 1–6 tells of God’s covenant with Abram in which God promised him a great reward. Amid the divine promises of greatness and protection, Abram was worried about his state of childlessness. The part of the pericope which relates to this study is that Abram adopted an heir from a known background. The exegetical research methods employed in studying Genesis 15:1–6 include a narrative method and sociological approach to the study of the Old Testament. The data obtained through interviews and secondary sources were analysed using the phenomenological method. The study aims to advocate that Awkunanaw parents who patronise baby-making industries should desist from such practice as it contributes to the prevalence of social vices in the community.Intradisciplinary and/or interdisciplinary implications: The article studies adoption in Awkunanaw, Enugu state, Nigeria, in the light of Abraham’s narrative in Genesis 15:1–6. In Awkunanaw culture, adoption from an unknown background is abhorred. The article submits that adopting children from unknown backgrounds is precarious for the social development and peace of the Awkunanaw community. Hence, the study is a contribution to Old Testament discourses on religion and society. Its related disciplines are sociology, biblical interpretation and practical theology.
Higher order $\mathcal{S}^{p}$-differentiability: The unitary case
Authors: Chattopadhyay Arup , Coine Clément , Giri Saikat , Pradhan Chandan
Published: November 2024

Consider the set of unitary operators on a complex separable Hilbert space

\mathcal{H}

, denoted as

\mathcal{U}(\mathcal{H})

. Consider

1<p<\infty

. We establish that a function

f

defined on the unit circle

\mathbb{T}

is

n

times continuously Fréchet

\mathcal{S}^{p}

-differentiable at every point in

\mathcal{U}(\mathcal{H})

if and only if

f\in C^{n}(\mathbb{T})

. Take a function

U \colon\R\rightarrow\mathcal{U}(\mathcal{H})

such that the function

t\in\R\mapsto U(t)-U(0)

takes values in

\mathcal{S}^{p}

and is

n

times continuously

\mathcal{S}^{p}

-differentiable on

\R

. Consequently, for

f\in C^{n}(\mathbb{T})

, we prove that

f

is

n

times continuously Gâteaux

\mathcal{S}^{p}

-differentiable at

U(t)

. We provide explicit expressions for both types of derivatives of

f

in terms of multiple operator integrals. In the domain of unitary operators, these results closely follow the

n

-th order successes for self-adjoint operators achieved by the second author, Le Merdy, Skripka, and Sukochev. Furthermore, as for application, we derive a formula and

\mathcal{S}^{p}

-estimates for operator Taylor remainders for a broader class of functions. Our results extend those of Peller, Potapov, Skripka, Sukochev, and Tomskova.
Boutroux Ansatz for the Degenerate Third Painlevé Transcendents
Authors: Shimomura Shun
Published: November 2024

For a general solution of the degenerate third Painlevé equation we show the Boutroux ansatz near the point at infinity. It admits an asymptotic representation in terms of the Weierstrass pe-function in cheese-like strips along generic directions. The expression is obtained by using isomonodromy deformation of a linear system governed by the degenerate third Painlevé equation.
Sharp Fourier extension for functions with localized support on the circle
Authors: Becker Lars
Published: November 2024

A well-known conjecture states that constant functions are extremizers of the

L^{2} \to L^{6}

Tomas–Stein extension inequality for the circle. We prove that functions supported in a

\sqrt{6}/80

-neighborhood of a pair of antipodal points on

S^{1}

satisfy the conjectured sharp inequality. In the process, we make progress on a program formulated by Carneiro, Foschi, Oliveira e Silva and Thiele to prove the sharp inequality for all functions.
Forgings, Titanium Alloys Heat-Treated, Finished-Part Properties: Short-Traverse Tensile, Fracture Toughness, and Longitudinal Time-Dependent-Tension
Authors:   AMS G Titanium and Refractory Metals Committee
Published: November 2024

This specification establishes requirements for titanium forgings of any shape or form from which finished parts are to be made (see 2.4.4, 8.3, and 8.6).
Steel Bars, Forgings, Mechanical Tubing and Forging Stock 4.1Cr - 4.2Mo - 1.0V (0.80 - 0.85C) (M-50) Premium Aircraft-Quality for Bearing Applications, Double Vacuum Melted
Authors:   AMS E Carbon and Low Alloy Steels Committee
Published: November 2024

This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Teaching Daily Conversational Language to Toddlers at PAUD Tunas Mekar in Melatiwangi Village, Bandung
Authors: Sandi S Renda , Lianingsih Nestia
Published: November 2024

Language is a tool of social interaction or communication because humans are basically social creatures. Humans have spoken since birth, although only in the form of vague or unclear sounds, but still in the form of signs or symbols that emit sounds, therefore it is called baby speech. Children first learn a language by speaking simple spellings until they can speak it well, which is called mother tongue or first language. In general, parents often do not have a good way of control in the process of fostering their children to be able to speak and speak, thus making children easily close themselves and have difficulty communicating with speakers. The purpose of this article is to find out early childhood language acquisition at the phonological, semantic, and syntactic levels through psycholinguistic research using qualitative methods using data collection techniques that underlie language acquisition: Several hypotheses, such as 1) conscience hypothesis, 2) tabularasa hypothesis, 3) cognitive universality hypothesis. Whether or not a child is good at language, raises the question of how important the role of parents is in child development, and how it can be controlled to minimize language problems faced by children.
Sobrevalorização cambial e a ascensão e queda do modelo de industrialização de Moçambique
Authors: Fuel Tomás Heródoto
Published: November 2024

Está empiricamente comprovado que a sobrevalorização cambial não é favorável ao desenvolvimento econômico entendido como mudança estrutural ou industrialização nacional. Este artigo analisa a influência da administração do câmbio no modelo de industrialização adotado por Moçambique com base na teoria novo-desenvolvimentista e no método histórico-dedutivo. Da teoria destacou-se a centralidade na análise da gestão do câmbio, enquanto o método é apropriado por analisar a regularidades dos fenômenos e, a partir destas fazer inferências. Estas ferramentas foram úteis para analisar os contrastes de Moçambique: um país rico em recursos naturais, com tendência de sobrevalorização cambial, surtos de industrialização seguido de recessão econômica e desindustrialização. Concluimos que os fatores explicativos remetem à confluência de fatores internos e externos que são, a concessão de incentivos fiscais, a ascensão dos BRICS e o reforço da cooperação Sul-Sul.
Palavras-chave: Moçambique; industrialização; sobrevalorização cambial
Revisitando a Elasticidade da Concessão do Crédito Livre às Pessoas Físicas no Consumo das Famílias: Evidências Empíricas no Período 2011 a 2023
Authors: Gadelha Sérgio Ricardo de Brito , Lopes Iago Guimarães
Published: November 2024

Este estudo tem por objetivo geral estimar a elasticidade de longo prazo da concessão do crédito livre às pessoas físicas no consumo das famílias. Utilizando dados trimestrais para o período compreendido entre o segundo trimestre de 2011 para o segundo trimestre de 2023 em relação às variáveis concessão de crédito às pessoas físicas, consumo das famílias e massa salarial real, os resultados obtidos a partir da estimação de um modelo econométrico dinâmico indicam que essa elasticidade é 0,2778, de modo que um aumento de 1% na concessão de créditos livres às pessoas físicas resulta em um aumento de 0,28% no consumo das famílias, aproximadamente.
Racionalidade e Vieses: Por que o investidor avesso ao risco não faz boas escolhas?
Authors: Massafera Felipe
Published: November 2024

Este trabalho traz uma discussão sobre a racionalização da escolha de investimentos para o investidor representativo brasileiro de perfil conservador. Em contraponto, discutiu-se os vieses das finanças comportamentais que limitam os investidores de tomarem decisões de investimento eficientes. Para isso, utilizou-se da análise de dados sobre as escolhas dos investidores brasileiros em 2021 e da comparação da série de rentabilidade dos ativos Caderneta de Poupança com ativos indexados à Selic e ao CDI para o período entre 2015 e 2022. Como resultado, observou-se que a Caderneta de Poupança, que teve rentabilidade real negativa no período, não foi um investimento eficiente em relação ao trade-off entre risco e retorno. Além disso, existem vieses comportamentais que afastam o investidor de tomar decisões de investimento racionais. Conclui-se que para aprimorar a escolha de investimento, faz-se necessário o estudo tanto da teoria tradicional financeira quanto do estudo das finanças comportamentais, mesmo que estas tenham abordagens opostas sobre o modo de escolha do indivíduo.
Effects of Covid-19 on the coffee sector in Manhuaçu - MG, Brazil: an economic analysis
Authors: Faria de Abreu Campos Rafael , Da Silva Lopes Igor
Published: November 2024

This study investigates the impact of the Covid-19 pandemic on the coffee cultivation sector in Manhuaçu - MG, Brazil. Specifically, it examines how the pandemic affected the coffee industry's planting and harvesting processes, transportation, and communication. Through a mixed-methods approach, combining qualitative and quantitative analysis, data were collected via a survey of coffee workers and producers. The results indicate that the coffee sector experienced both adverse effects and some positive outcomes during the pandemic, particularly due to increased coffee prices. Shifts in transportation, technology adoption, and financial challenges amidst the pandemic are revealed. Despite logistical hurdles and reduced field labor due to sanitary measures, the coffee sector retains significance in the local economy. Overall, the pandemic significantly impacted the regional economy. The study underscores the importance of understanding evolving economic dynamics amid the pandemic and proposes avenues for future research to explore trends in coffee cultivation beyond the pandemic period.
Descriminalização do aborto no Brasil: custos estimados para o Sistema Único de Saúde (SUS)
Authors: Baptista Rodrigues Ana Helena
Published: November 2024

No Brasil, o aborto a pedido da mulher é considerado crime, sendo permitido apenas em casos de estupro, risco de morte materna ou feto anencéfalo. No entanto, estimativas do Ministério da Saúde apontam para cerca de um milhão de procedimentos ilegais por ano no Brasil, o que demonstra a ineficácia de sua criminalização. Diante da possibilidade de o Supremo Tribunal Federal (STF) revogar os artigos que criminalizam o aborto no Código Penal, este trabalho estimou em US$ 102,8 milhões por ano os gastos que o Sistema Único de Saúde (SUS) teria caso o aborto fosse descriminalizado e oferecido gratuitamente. Esse valor representa uma redução de aproximadamente US$ 90 milhões por ano na perda monetária de manter o aborto ilegal no país.
A implantação das contas nacionais no Brasil: Uma réplica ao artigo “Para uma história das contas nacionais no Brasil"
Authors: Ramos Roberto Luis Olinto , Considera Claudio Monteiro
Published: November 2024

Este artigo comenta sobre afirmações realizadas no artigo “Para uma história das contas nacionais no Brasil” de autoria do Dr. Luiz Eduardo Simões de Souza e publicado na Revista Economia e Política Pública V.9, n.2 de 2021. E apresenta, completamente, a implantação dos sistemas de contas nacionais do Brasil desde sua primeira edição pela Fundação Getúlio Vargas até a versão atual compilada e disseminada pelo Instituto Brasileiro de Geografia e Estatística.
Marine Characteristic Changes Associated with Typhoon Soulik Observed Using Wave and Underwater Gliders
Authors: Jong-Wu Hyeon  , Dae-Hyeong Ji  , Seom-Kyu Jung  , Sung-Hyub Ko
Published: November 2024

To assess the impact of Typhoon Soulik on the marine environment, unmanned platforms, specifically wave and underwater gliders, are used for surveys in the East Sea. From August 20 to 30, 2018, the wave glider collected meteorological data, while the underwater glider conducts CTD measurements within the typhoon’s impact zone. The data are compared with marine buoy data from the Korea Meteorological Administration and forecast model outputs using RMSE and correlation coefficients to evaluate the characteristics of each data source. The unmanned platform effectively capture the marine environmental changes during the typhoon passage, and the forecast model results show relatively lower RMSE and correlation with the observed data. The study also determines the time required for conditions to revert to pre-typhoon states. This research demonstrates the potential of unmanned platform data for enhancing marine surveys and forecast model accuracy.
Exploring the role of task-based language learning in an interdisciplinary approach
Authors: BURDUJAN Radu
Published: November 2024

This paper examines the significance of Task-Based Learning (TBL) as a versatile pedagogical approach applicable across various disciplines, including language education, Zoology, and Art. It elucidates how TBL integrates real-world tasks into the curriculum, fostering active learning, critical thinking, and collaboration among students. Drawing on interdisciplinary principles, the paper presents a task-based lesson plan incorporating stages tailored for language courses and extracurricular activities. Through pre-visit preparation, during-visit execution, and post-visit reflection, students engage in authentic tasks that bridge multiple subjects, thereby enhancing language proficiency and deepening understanding of diverse topics. The paper highlights the importance of TBL in promoting holistic learning experiences that transcend traditional disciplinary boundaries, preparing students for the complexities of the modern world.
Interdisciplinary models, methods and applications of mathematics in sciences
Authors: AMIHĂLĂCHIOAE Aniela
Published: November 2024

This article aims to exemplify some practical ways of using mathematics in various disciplines and to modify or reorganize the teaching part so that it also capitalizes on the practical side in several other fields.
(Un)Know Thy “Self”: Interconnected Consciousness and Different Ways of Knowing
Authors: Waterman Laurel , Cooper Karyn
Published: November 2024

This paper draws on preliminary data from a qualitative study in curriculum and pedagogy, “Stories of Teaching about Consciousness: An Inquiry into Worldviews and Wellbeing.” An emerging theme is the concept of the self and how it entwines with perspectives on consciousness. Analyzing consciousness and the self through The Five Contexts framework reveals assumptions at the heart of research and education that often go unquestioned. We wonder, what might alternative perspectives on consciousness and the self offer to researchers and educators? The study aims to inform a larger project of “consciousness education,” defined as education about perspectives on the source and nature of consciousness and their implications for ways of being, knowing, teaching, and learning. The broader inquiry uses narrative methods to collect and interpret stories of teaching experiences from eight scholars from different cultural and philosophical perspectives, including Indigenous, Eastern, and Western. This paper uses The Five Contexts (autobiographical, historical, political, postmodern, and philosophical) as an analytical framework to interpret theory and data related to the concept of the self from different perspectives. This five-context analysis reveals the modern concept of the individual, material self as a theoretical construct that emerged from the cosmological context of the European Renaissance, influenced the historical development of Western science and education, and continued to be reproduced for political purposes. Different cultural, philosophical, and scientific perspectives on consciousness, both ancient and recent, challenge this theoretical construct. Instead, they offer an understanding of consciousness and the self as interconnected and existing beyond the material. Researchers and educators may benefit by becoming aware of their assumptions about consciousness and the self, and of the different perspectives that challenge their assumptions. Such awareness may open possibilities for ways of knowing that transcend the disconnected “self” and foster a more profound sense of interconnectedness.
PROCEDURE FOR REMOVING ELEMENTAL SULFUR FROM THE OIL OF POWER TRANSFORMERS - REDUCING THE RISK OF POWER TRANSFORMERS FAILURES
Authors:   Univerzitet u Beogradu, Elektrotehnički Institut Nikola Tesla, Tehnološko-Metalurškom Fakultetu, Kolarski Dejan , Vasović Valentina ,   Univerzitet u Beogradu, Elektrotehnički Institut Nikola Tesla, Janković Jelena ,   Univerzitet u Beogradu, Elektrotehnički Institut Nikola Tesla, Mihajlović Draginja ,   Univerzitet u Beogradu, Elektrotehnički Institut Nikola Tesla, Bošnjaković Jovana ,   Univerzitet u Beogradu, Elektrotehnički Institut Nikola Tesla
Published: November 2024

During the past years, there has been an increase in the number of power transformer failures worldwide linked by the presence of corrosive sulfur compounds in mineral insulating oil, leading to the formation of deposits of highly conductive copper sulfide or silver sulfide. In oils in operation, a highly reactive elemental sulfur, in a form of eight atom molecule of sulfur, S8, with a strong affinity for silver can be detected which present a significant threat to the contacts of the on load tap changer (OLTC). The high-temperature reactivation process of adsorbents during or after the regeneration process of mineral insulating oils leads to the contamination of insulating oil with elemental sulfur. The paper presents an innovative low-temperature process for the efficient removal of S8 from mineral insulating oil, based on the application of a small amount of iron particles coated with copper on its surface as a key component of the reagent mixture which is dispersed in polyethylene glycol. Intensive mixing of the reagent mixture with mineral insulating oil at temperatures below 100°C enables the complete removal of S8 from the oil. High process efficiency, the removal of S8 from the initial 15 mg/kg to levels below the detection limit, is achieved by using a small amount of the reagent mixture relative to the oil mass (<0.2 wt.%), in laboratory conditions and on a pilot scale experiments. Applying this process and subsequent treatment with adsorbents, insulating oils with improved physical, chemical and electrical characteristics are obtained, suitable for further use in power transformers. This procedure reduces potential environmental and economic risks associated with power transformer failures. The next phase will involve further process optimization and industrial plant implementation.
RECONSTRUCTION OF 6,3 KV SWITCHGEAR OF DELIVERY OF COAL (2GD) IN THERMAL POWERPLANT KOSTOLAC A
Authors:   AD EPS, TE-KO “Kostolac”, Srbija, Simeunović Zlatko , Nikolić Jelena ,   AD EPS, TE-KO “Kostolac”, Srbija, Žukovski Dejan ,   AD EPS, TE-KO “Kostolac”, Srbija, Stanisavljević Miloš ,   AD EPS, TE-KO “Kostolac”, Srbija
Published: November 2024

As part of the TPP Kostolac A, since the first synchronization of its unit A1 in 1967, coal delivery system has been operating, the task of which is to receive, store and deliver coal for the operation of TPPs in Kostolac. With the construction of unit A2 in 1980, an increased consumption of coal occurred, as well as a demand for more stable and reliable operation of the units, which led to the construction of a 6.3 kV switchgear in 2002. After its exploitation and continuous operation, the reconstruction and modernization of the 6.3 kV switchgear was carried out in 2023. There were no more spare parts for the equipment that was in operation, and a large number of manipulations led to more frequent electrical equipment failures. At the time of its reconstruction, most of the equipment in the switchgear was more than 21 years old. Maintenance and exploitation were based on the experience of the staff. Old vacuum circuit breakers with damaged contacts and worn-out motor-spring drives have been replaced by new vacuum power block circuit breakers that have a shorter execution time, higher tripping current and less need for maintenance. Microprocessor protections of the older generation have been replaced by protections of the latest generation that are more reliable, faster, more transparent, more efficient, more suitable for subsequent analysis of archived data and with more functions. Two spare fully equipped cubicles have been installed, which increased reliability and left a reserve for the needs of the technological process. A control system was installed and integrated into the existing SCADA system on the electrical control panel and full remote control of the switchgear was introduced. The reconstruction of the coal delivery facility resulted in simpler manipulation, easier maintenance, remote monitoring and control, and most importantly, the level of reliability of the supplied equipment has been raised.
POWER QUALITY AT THE POINT OF CONNECTTION OF SOLAR POWER PLANTS TO THE DISTRIBUTION SYSTEM
Authors:   Elektrodistribucija Srbije doo Beograd, Ogranak ED Aranđelovac, Srbija, Zlatković Nenad , Đekić Bojan ,   Elektrodistribucija Srbije doo Beograd, Ogranak ED Aranđelovac, Srbija, Krušković Nikola ,   Elektrodistribucija Srbije doo Beograd, Ogranak ED Aranđelovac, Srbija
Published: November 2024

The paper presents an analysis of the power quality, through the voltage quality at the point of connection of solar power plants to the distribution system of the DSO Elektrodistribucija Aranđelovac. The measurements were carried out with power quality analyzer of high accuracy class in accordance with norm IEC 61000-4-30. The analyzis of the obtained results was performed in accordance with norm SRPS EN 50160 and in accordance with the requirements of the Distribution System Operator (DSO). In addition to the undoubted benefits brought by the installation of solar power plants, the aim of the work is to assess of solar power plants on the power quality, through the voltage qualuty at the point of common coupling (PCC).
A METHOD FOR ESTIMATION OF INFLUENCE OF CONNECTING NEW LOADS TO DISTRIBUTION GRID ON FLICKER VALUE
Authors:   Avalon Partners d.o.o, Srbija, Laketić Nikola , Đikić Vladimir ,   EMS A.D., Srbija, Krnajski Vladimir ,   EMS A.D., Srbija, Tatalović Aleksandar ,   Avalon Partners d.o.o, Srbija
Published: November 2024

The paper presents an innovative method for estimating the flicker value caused by the operation of one or more prospective sources of flicker in the distribution and transmission network. The method is based on the calculation of the time profile of the rms voltage value using load model in high time resolution and a transmission or distribution network model. The method determines the voltage profile in a large number of quasi-stationary points, with a high time resolution of 20 ms, which is why this method has a high accuracy in terms of flicker. The paper presents the results of applying the method to connection of a specific consumer - an Electric Arc Furnace. The method was first applied for the estimation of flicker due to the operation of the electric arc furnace, and then for the estimation of the operation of the furnace together with the STATCOM device. Voltage quality measurements on a real consumer showed the accuracy of the method for both cases. The verification results show the high accuracy of the proposed estimation method. The proposed method can also be used to isolate the influence of a specific consumer on the increase in flicker value at the connection point. The method can be easily extended to calculate the impact of the injection of other types of disturbances (higher harmonics, voltage variations,...) for a wide range of different types of consumers.
Local Community Participation Seasonal Flood Disaster in Sidoarjo Regency, East Java
Authors: Idham  , Mukhtar Dzulkifli Bin
Published: November 2024

Irrigation in Sidoarjo Regency Drainage System Complex area of carrier channels to irrigation of the drainage (AFVOUR) in the display of water level regulators. High water surface in the channel causes slow flow of rain water catchment to a puddle. Conditions are exacerbated by backwater in the river channel in the area near the coast when the tide, causing floods to not be directly receding. Synergy has a combination of integration of various elements (for example, stakeholders) optimizing something better, legitimacy is considered to equalize perception hoping that actions are carried out in the desired action entity, appropriate according to value norms. Case Study Case data applies certain cases are generalized. Case study data is possible to be used to explore, examine comprehensiveness of a research object. Analysis of data using atlas, The weakness of the government's supervisor handles industrial waste into the River Peraul in Sidoarjo Regency, Urban Sprawl Social Impact Urbanization in big cities, controlling urbanization Increases development using the approach to touch the needs of the community needed Village, equity, spread of village remote development, the level of participation and understanding  of  the  community  provides  feedback  related  to  the  concept of handling routine flood disasters every year. Seasonal flood disaster control in Sidoarjo Regency by involving local communities is an important approach by direct supervision by local communities, counseling on good water management practices, emergency response training, community based infrastructure development, coordinating between the government, local communities, form of concrete participation Local community in Sidoarjo Regency.
Plasma Filtration
Authors: Tan HK , Hart G
Published: November 2024

Therapeutic plasma exchange (TPE) or plasmapheresis involves the separation of plasma from whole blood. In so doing, plasma-borne humoral disease mediators are removed from the body. This can attenuate the course and severity of the underlying disease. Diseases that can be treated with TPE are classified into the following categories: (1) endocrinological, (2) neurological, (3) renal/rheumatological, and (4) haematological. TPE is adjuvant in most of these settings. Disease-specific pharmacological treatment remains the cornerstone of treatment in many of these conditions. Plasma separation can be achieved with either (1) centrifugation (CF) or (2) membrane plasma filtration (PF). The latter is the focus of this review. It can be performed using either a continuous renal replacement therapy (CRRT) or haemodialysis (HD) machine. Standard plasma filtration has also been modified to incorporate sorbent technology which obviates the need for plasma volume replacement fluids. Larger clinical issues such as timing of initiation and intensity of therapy are examined.
Inflammatory Tumour of the Retroperitoneum – A Case Report
Authors: Mali VP , Tan HC , Loh D , Prabhakaran KLE
Published: November 2024

Introduction: Neoplastic growths of myofibroblasts occurring on a background of plasma cell and lymphocytic proliferation have been designated as inflammatory myofibroblastic tumours (IMTs). These unusual tumours were first described in pulmonary location in adults. Though extrapulmonary masses have been reported in children; retroperitoneal growths are exceedingly rare. We report a case of retroperitoneal IMT that presented with constitutional symptoms without any palpable abdominal mass.

Clinical Picture: A previously well 12-year-old boy presented with fever, right-sided flank pain and weight loss of 1-month duration. There were no foci of infection. The erythrocyte sedimentation rate (ESR) was raised; the white cell count was normal. An abdominal computed tomography (CT) scan revealed a right suprarenal tumour measuring 3.5 cm without any calcification. The urinary catecholamines and vanilmandelic acid were normal.

Treatment: A laparotomy with complete excision of the tumour was performed. Final histology revealed an inflammatory myofibroblastic tumour without any correlates of aggressive behaviour. Outcome: Postoperatively, the constitutional symptoms of fever, weight loss and raised ESR normalised. Follow-up CT was normal and further treatment was not necessary.

Conclusion: Although rare, IMTs should be considered in any abdominal solid tumour with associated constitutional and laboratory features of an inflammatory response. Complete surgical excision is effective treatment for biologically benign tumours.
Fetus-in-fetu in the Pelvis: Report of a Case and Literature Review
Authors: Chua JHY , Chui CH , Sai Prasad TR , Jacobsen AS , Meenakshi A , Hwang WS
Published: November 2024

Introduction: Fetus-in-fetu is an extremely rare condition in which a malformed fetus is found in the body of its twin. To our knowledge, fewer than 100 cases have been reported. Wide variations of presentation have been described, although its embryo-pathogenesis and differentiation from a teratoma have not been well established.

Clinical Picture: We describe a male neonate with a fetoid-like mass in his pelvis associated with bilateral undescended testes. The mass was detected on prenatal ultrasound scans. The diagnosis of fetus-in-fetu was considered prenatally and confirmed on a computed tomography scan after birth.

Outcome: The mass was successfully excised. Histological examination, accompanied by a review of the literature, confirmed that the mass had features consistent with a fetus-in-fetu.

Conclusions: Although an extremely rare clinical entity, fetus-in-fetu can be diagnosed prior to surgery with current imaging modalities. When it arises in the retroperitoneum of a male infant, it can hinder the descent of the testes. Complete excision is curative.
Making $ense of Growth Hormone Therapy for Normal Short Children
Authors: Loke KY
Published: November 2024

The advent of recombinant growth hormone 20 years ago, which led to increased, albeit expensive, supplies of growth hormone (GH) in the market, has resulted in new treatments for short children. Apart from the 3 traditional indications to improve stature, namely (1) children with growth hormone deficiency, (2) Turner syndrome and (3) chronic renal failure, additional indications approved by the US Food and Drug Administration include children who are born small for gestational age, Prader Willi syndrome, and children with idiopathic short stature (ISS).
15th Seah Cheng Siang Memorial Lecture: Liver Transplantation – Lessons Learnt and Future Horizons
Authors: Williams R
Published: November 2024

The first clinical successes with liver transplantation by Starzl in 1967 were based on studies showing that in man, organ allografts could induce self-tolerance with the aid of immunosuppression. Overall survival figures were poor until 1983, when cyclosporine was introduced into immunosuppressive regimes, and with the introduction of tacrolimus, results improved even further. With figures for 1-year survival now up to 90%, more attention is being directed to quality of life and the side effects of immunosuppression. Nephrotoxicity along with hypertension and diabetes are of major concern, and a significant number of long-term liver transplant patients are now facing end-stage renal failure. In the majority of conditions transplanted there is also a significant chance of disease recurrence in the graft. Owing to the shortage of cadaver organs, split liver and domino techniques are increasingly utilised. Living donor liver transplantation has also come to the fore, and to minimise potential harm to the donor, new techniques are being developed which will allow greater use of left lobe grafts.
Continuing Professional Development – Supporting the Delivery of Quality Healthcare
Authors: Starke I , Wade W
Published: November 2024

Patients and the general public have a right to expect that doctors remain up to date and are professionally competent. The ultimate aim of continuing professional development (CPD) is to contribute to high-quality patient care. The General Medical Council in the UK has published guidance in relation to standards for CPD, appraisal and revalidation. Doctors in the UK participate in an annual appraisal, the outcome of which is the development of the Personal Development Plan. This paper describes a framework for effective CPD and includes methods of self-assessment of clinical practice. Contributions to effective CPD come from 3 sources – doctors, CPD providers and accrediting bodies. The CPD system of recording credits currently in use by the Royal Colleges of Physicians in the UK is also described.
Should General Physicians or Subspecialists Undertake Acute Medical Care in Public Hospitals?
Authors: Chee YC
Published: November 2024

Acute medical care in public hospitals may be handled differently in different countries. As general physicians in Singapore are trained to deal with undifferentiated clinical problems and run most of the admitting wards, they are suited to take care of patients with acute medical problems. The exceptions to this rule are made for patients accurately diagnosed with stroke and acute coronary syndrome, who have better clinical outcomes if admitted directly to stroke units and coronary care units respectively. In the diagnostic workup, general physicians are trained to practise probabilistic medicine, and thus to order more focused investigations to rule in or rule out certain diagnoses. The subspecialist is more inclined to exclude possible diagnoses in his or her field. Once there is a clear-cut diagnosis, for primary care, it is up to the patient to decide if his primary doctor should be a generalist or subspecialist. An important role for the general physicians who manage patients with multiple diseases is constant medication review to shorten the list of drugs.
Citation on Dr Chew Chin Hin for Admission to Honorary Fellowship, College of Physicians Singapore on 2 July 2005
Authors: Chee YC
Published: November 2024

Dr Chew Chin Hin, 74 years young this year, is a man for all seasons. His father, the late Dr Benjamin Chew, had himself a distinguished career and contributed much to medicine in Singapore. Anna, his wife, too is a medical doctor, courted from the days in Hong Kong University where he graduated MBBS in1955, did his surgical house job at Queen Mary’s, then returned to Singapore as house physician under Professor Gordon Ransome before proceeding to physician training. Fifty years on in this centennial year of the Medical School, he remains closely associated with the University Department of Medicine. In 1961, he passed the membership exam, climbed the local ranks through Senior Registrar to Consultant and was made foundation Head of Medical Unit IV, Tan Tock Seng Hospital (TTSH) (which, upon restructuring in 1992, became the present Department of Rheumatology, Allergy and Immunology).