bluuebunny/crossref_metadata_2025 huggingface dataset:
STUDY OF SUSTAINABLE ODOP HANDLOOM AND HANDICRAFTS PRODUCTS IN VARANASI
Authors: Nagrath Seema , Grover Sonia
Published: June 2024

One of the few decades-old civilizations that are still in existence where craftsmen and weavers have vital roles in India in creating exquisite unique arts, crafts, and products that are indigenous to its artisans and karigars. The innovative charm, application, demand, philosophy, relevance, and character of this industry are what make it extraordinary.One District One Product (ODOP), the state government's vision, is regarded as a groundbreaking attempt towards acknowledging the genuine potential of a district based on the strengths of a district and national priorities. indigenous knowledge of its crafts person, rural entrepreneurship, employability for their livelihood, and showcasing each district on a global platform to fuel economic growth and preserve their sustainable textiles and crafts forms. This initiative would also help in preserving and developing local crafts and skills in terms of artistic packaging and branding. The production of exclusive gifts and souvenirs would get a direct connection with boosting tourism.We have attempted to highlight the SWOT (strengths, weaknesses, opportunities, and threats) that rural craftsmen must contend with in this essay. Researchers, organizations, and the government sector may utilize this SWOT to help this region grow to support and promote weavers and other craftspeople. The insight of this paper focuses on the commercial and ecological tools equipment and other resources used by the aboriginal artisans. The ambition of this paper aims to provide an understanding of the potential handloom and crafts commercial sectors in Varanasi, Uttar Pradesh, where an increasing number of ODOP producers and craftsmen have affiliated themselves with e-commerce platforms and benefit from it as they can sell their products directly to the consumers thus eliminating the role of middlemen. This paper will help the preservation of craft people’s resources and its move towards sustainability and revival through modernization and publicity. The sector holds great potential and can generate numerous jobs for weavers and artisans.
Structure of mangrove ecosystem in Lubuk Damar Coast, Seruway, Aceh Tamiang
Authors: Darmarini Ananingtyas S , Wardiatno Yusli , Partono Tri , Soewardi Kadarwan , Samosir Agustinus Mangaratua , Zainuri M
Published: June 2024

Mangrove is an important ecosystem in coastal areas because it is the basis for the formation of food webs and has direct and indirect impacts on aquatic and terrestrial ecosystems. The purpose of this research is to determine the community structure of mangrove vegetation of Lubuk Damar, Seruway, Aceh Tamiang. The study was conducted in August 2017. The method used a quadratic transect that was pulled straight from the coastline to the mainland. The results found 10 types of mangrove vegetation consisting of A. alba, B. parviflora, B. sexangula, Soneratia alba, R. apiculata, Acrostichum aureum, Aegiceras floridum, E. agallocha, X. granatum, and Acanthus ilicifolius. Mangrove species with the highest percentage are in the A. floridum species. Important value index the tree phase in the range of 4.75 to 117.91. Lubuk Damar mangrove vegetation is in the damaged category. However, the number of saplings and seedlings was found to have a high density so that the ecosystem has the potential to regenerate naturally.
ANÁLISE DE ALTERAÇÕES EPIGENÉTICAS EM PACIENTES INFECTADOS PELO VÍRUS DA IMUNODEFICIÊNCIA HUMANA
Authors: Oliveira Caren Nunes de , Verber Letícia da Cunha , Mattevi Vanessa Sune
Published: June 2024

Introdução: A introdução da terapia antirretroviral combinada (TARV) possibilitou o aumento da expectativa de vida de pacientes infectados pelo vírus da imunodeficiência humana (HIV). Entretanto, o ad
UM DESAFIO PARA AS ORGANIZAÇÕES
Authors: Amaral Melissa Ribeiro do , Willerding Inara Antunes , Lapolli Édis mafra
Published: June 2024

É essencial que as organizações adotem uma abordagem
de gestão focada nas pessoas, em que o capital humano é visto como um elemento-chave para a transformação, enfatizando a importância de valorizar as características dos indivíduos, cultivando um ambiente de trabalho inclusivo. O objetivo dessa estratégia de gestão é fomentar um desenvolvimento contínuo voltado para felicidade, bem-estar, equidade e melhoria da qualidade de vida, tanto no âmbito pessoal quanto no profissional. Tal gestão busca erradicar desequilíbrios e injustiças sociais, contribuindo para a construção de uma organização mais saudável e sustentável.
Noções Básicas do Software Maxima no Ensino de Ciências
Authors: Braga Alessandra Nascimento , Silva Júnior Carlos Alberto Brito da , Braga Aline Nascimento , Araújo Josiney Farias de , Silva Joedila Felipe da
Published: June 2024

Este material no formato de ebook foi projetado para tornar o ensino de Física atraente, envolvente, interativo e acessível a todos os níveis de escolaridade, em especial, alunos, professores (atuantes, em formação inicial e/ou continuada), e instituições de ensino. Trata-se de uma abordagem sobre o uso da Computação Algébrica (CA) no ensino de Ciências Físicas e fornece propostas de aprendizagem para cálculos, gráficos e animações por meio de atividades interativas com o software (ou App) Maxima escrito na linguagem Commom Lisp e usa o Gnuplot para plotagem com o intuito de fazer uso desta ferramenta tecnológica poderosa na sala de aula para auxiliar o professor e/ou aluno. Todos os trabalhos realizados e informes relacionados ao projeto “Construção do Saber Científico e Tecnológico na Amazônia: O Uso da CA para o Ensino de Ciências" que forem produzidos pela bolsista/autora 1 deste ebook serão devidamente disponibilizados em uma página de divulgação científica no Instagram pelo link abaixo é só clicar no ícone:O ebook conta ainda com conteúdos interativos que o deixa ainda mais divertido, tornando o acesso mais dinamico e acessivel que incentiva o leitor a buscar o conhecimento científico (matemático) sobre o tema abordado.
O Impacto da Segurança Pública no Turismo
Authors: ASTOLPHI YURI SALVAN
Published: June 2024

Este artigo examina a relação entre segurança pública e turismo. A segurança pública desempenha um papel crucial no desenvolvimento e na sustentabilidade do setor do turismo. Uma análise aprofundada dos fatores que afetam a segurança e a
percepção de segurança dos turistas é essencial para o crescimento saudável do turismo em qualquer destino. Este estudo enfoca a importância da segurança pública para o turismo, destacando sua influência no fluxo de turistas, na economia local e na reputação do destino. A metodologia inclui uma revisão de literatura, análise de dados estatísticos e estudos de caso. Os resultados mostram que um ambiente seguro é um fator determinante na escolha de destinos turísticos.
Concluímos que investir em segurança pública não só beneficia a comunidade local, mas também impulsiona o crescimento e o desenvolvimento do turismo.
Queering Jewish Studies
Authors: Hájková Anna , Krasuska Karolina , Balling J. Rafael , Drinkwater Gregg , Gajowy Aleksandra , Snyder Carli , Strassfeld Max , Yarfitz Mir
Published: June 2024

Abstract: This forum brings together eight scholars of various disciplines who take stock of queer perspectives on Jewish Studies, introduce new lines of research, and show the many ways in which queering Jewish Studies energizes the field. The authors also discuss the particular promise of Jewish trans studies as well as the nexus of queers and Jews in the age of rising populism. Overall, the forum serves as a primer for those interested in how to teach or do queer Jewish Studies.
Spinoza vs. the Kahal: The Zionist Critique of Spinoza’s Politics
Authors: Cooper Julie E.
Published: June 2024

Abstract: The 1920s and 30s witnessed an explosion of interest in Spinoza among Zionist intellectuals. The reflexive equation of nation and state has led scholars to conclude that Zionists were drawn to Spinoza because he justified state sovereignty. This assumption is mistaken. Eastern European Zionists rejected Spinoza’s sovereignty-centered political thought—precisely because it denies political standing to non-sovereign bodies such as the kahal. Drawing on diasporic history, Spinoza’s Zionist critics elaborated a distinctive political vision that prized national autonomy but did not equate self-rule with sovereign power. I foreground Zionist repudiation of Spinozist sovereignty to challenge reigning assumptions about the ideological sources of non-sovereign politics. Theorists influenced by German Jewish thought have predicated the cultivation of non-sovereign political imagination on a disavowal of nationalism. This opposition—between diaspora and nation, between nationalism and non-sovereignty—is false. In eastern Europe, nationalist figurations of galut (exile) have long inspired non-sovereign, non-Spinozist political imaginaries.
“Don’t Give Up Your Ration Card”: Beggars, Noise, and the Purpose of Music in the Warsaw Ghetto
Authors: Riegel Jules
Published: June 2024

Abstract: From its 1940 establishment to the Great Deportation of 1942, accounts from the Warsaw Ghetto testify to the misery of beggars within its walls, who drew attention to their plight using songs, cries, shouts, and other sounds. Diaries, reports, and song texts from the ghetto, alongside memoirs and testimonies, reveal beggars’ struggles—as well as non-beggars’ often hostile reactions to their songs and other sounds. Drawing on scholarship in sensory history and cultural histories of the Holocaust, this article reveals that these reactions perpetuated established critiques of shund (artistic “trash”) and tapped into longstanding anxieties about the Jewish community’s status as modern, civilized, and European. However, certain beggars’ songs overcame listeners’ hostility by directly confronting inequality and ghetto authorities’ abuses of power. Beggars and their music were intrinsic to the Warsaw Ghetto’s soundscape, and the debates they engendered reveal how Polish Jews imagined their community’s future, even amid its destruction .
Pengaruh Tingkat Pendidikan, Umur dan Jenis Pekerjaan Terhadap Pemahaman Zakat Sebagai Pengurang Pajak Penghasilan
Authors: Fialita Lulu Luth
Published: June 2024

Penelitian ini bertujuan untuk mengetahui pengaruh tingkat pendidikan, umur dan jenis pekerjaan terhadap pemahaman zakat sebagai pengurang pajak penghasilan di Kantor Pelayanan Pajak Pratama kota Serang.   Penelitian ini dilakukan dengan menggunakan metode Asosiatif. Populasi dalam penelitian ini adalah wajib pajak orang pribadi yang terdaftar di Kantor Pelayanan Pajak Pratama kota Serang dengan sampel 100 wajib pajak orang pribadi dengan menggunakan metode Solvin. Penelitian ini dilakukan pada bulan Juli s.d. Desember  2018.  Data dikumpulkan dengan metode kuesioner, dan analisis data yang digunakan adalah uji instrumen data,  uji asumsi klasik, analisis regresi berganda, koefesien determinasi, uji hipotesis yang menggunakan SPSS v.23 for Windows.
            Berdasarkan hasil penelitian dapat disimpulkan bahwa, terdapat pengaruh signifikan antara tingkat pendidikaan terhadap pemahaman zakat sebagai pengurang pajak penghasilan, terdapat pengaruh signifikan antara umur terhadap pemahaman zakat sebagai pengurang pajak penghasilan, dan terdapat pengaruh signifikan antara jenis pekerjaan terhadap pemahaman zakat sebagai pengurang pajak penghasilan, serta terdapat pengaruh signifikan secara simultan antara tingkat pendidikan, umur dan jenis pekerjaan terhadap pemahaman zakat sebagai pengurang pajak penghasilan.
Pengaruh Pajak, Debt Covenant dan Tunneling Incentive terhadap Keputusan perusahaan melakukan Transfer Pricing
Authors: Alawiyah Nurul , Umdiana Nana , Suprihatin Neneng Sri
Published: June 2024

Penelitian ini bertujuan untuk mengetahui pengaruh pajak, debt covenant dan tunneling  incentive terhadap keputusan transfer pricing (Studi Empiris pada Perusahaan Manufaktur Sektor Industri Dasar dan Kimia yang Terdaftar di Bursa Efek Indonesia Periode 2012-2017) yang berjumlah 9 perusahaan dengan menggunakan purposive sampling. Teknik analisis yang digunakan pada penelitian ini adalah dengan menggunakan regresi logistik. Data pada penelitian ini diolah dengan menggunakan program SPSS versi 23. 
Hasil dari penelitian ini menunjukkan bahwa: pajak tidak berpengaruh terhadap keputusan perusahaan untuk melakukan transfer pricing. Sedangkan debt covenant dan tunneling incentive, berpengaruh terhadap keputusan perusahaan untuk melakukan transfer pricing.
Kata Kunci: Transfer Pricing, Pajak, Debt Covenant, Tunneling Incentives
Pengaruh Kinerja Keuangan Dan Good Corporate Governance (GCG) Terhadap Penghindaran Pajak Pada Perusahaan Industri Perbankan
Authors: Pratama Mitha Putri , Burhanudin  , Kodriyah
Published: June 2024

Penelitian ini bertujuan untuk menguji dan menganalisis pengaruh kinerja keuangan dan Good Corporate Governance (GCG) baik secara parsial dan simultan terhadap penghindaran pajak pada perusahaan perbankan yang terdaftar di BEI tahun 2016-2021. Jenis penelitian kuantitatif, data yang digunakan adalah data sekunder. Penelitian ini mengobservasi sebanyak 10 perusahaan perbankan yang terdaftar di bursa efek tahun 2016-2020 dengan pengambilan sampel yang digunakan adalah purposive sampling. Metode pengumpulan data dalam penelitian ini adalah studi Pustaka dan akses internet. Metode analisis data yang digunakan adalah analisis regresi berganda. Hasil uji regresi yang dilakukan membuktikan bahwa secara parsial kinerja keuangan diukur menggunakan Return on Assets (ROA) berpengaruh signifikan terhadap penghindaran pajak, Good Corporate Governance diukur menggunakan komisaris independen berpengaruh signifikan terhadap penghindaran pajak. Secara simultan kinerja keuangan diukur menggunakan Return on Assets (ROA) dan Good Corporate Governance diukur menggunakan komisaris independen secara simultan berpengaruh signifikan terhadap penghindaran pajak pada perusahaan Perbankan yang terdaftar di BEI Periode 2016-2021.
The Effect of Administration of Lavender and Lemon Aromatherapy on Emesis Gravidarum
Authors: Dinengsih Sri , Utami Dinda Ferizka
Published: June 2024

The incidence of hyperemesis gravidarum in Indonesia in 2015 was 1.5-3% of pregnant women Prolonged and poorly treated nausea and vomiting can affect nutritional disorders, dehydration, weakness, weight loss, and electrolyte imbalances, if not treated immediately this nausea and vomiting can interfere with daily life, or better known as hyperemesis gravidarum. This study is to determine the effect of giving lavender and lemon aromatherapy on emesis gravidarum in TPMB R in 2022. This study used a type of quasi experiment with a two group pretest-postest design. The population in this study were first and second trimester pregnant women at TPMB R with a total sample of 53 respondents. The sample of this study amounted to 30 people with purposive sampling technique, namely sampling based on exclusion and inclusion criteria. Bivariate analysis using the Paired T test. The average value of the level of emesis gravidarum before being given lavender aromatherapy (10.07) and the average level of emesis gravidarum after being given lavender aromatherapy (5.67) with a difference in the level of Emesis Gravidarum (4.40). The average level of Emesis Gravidarum before being given lemon aromatherapy (11.47) and the average level of emesis gravidarum after being given lemon aromatherapy (6.27) with a difference in emesis gravidarum (5.20). There is an effect of giving Levender Aromatherapy on Emesis Gravidarum (p-Value 0.001) and there is an effect of giving lemon aromatherapy on Emesis Gravidarum (p-Value 0.000). There is no difference between giving lavender aromatherapy and lemon aromatherapy on Emesis Gravidarum because both have the same effectiveness. It is hoped that lavender aromatherapy and lemon aromatherapy can be used as alternative treatments to reduce nausea and vomiting in pregnant women that can be done at home.
The Effectiveness of Early Mobilization on Post Sectio Caesarea Wound Healing
Authors: Anggraeni Widya , Idayanti Titiek , Fauziyah Rahma
Published: June 2024

Most mothers with post partumsectiocesaria feel worried if her body is moved in certain positions will affect post surgery wound that still hasn't fully recouered, also due to the pain that is felt after anesthesia effects is disapparing 1.. The purpose of this study was to determine the effectiveness of early mobilization wound healing post sectiocaesaria. The type of this research is analytic cross-sectional. Variabel in this research is mobilization as the independent variable and wound healing post sectiocaesarea as the dependent variable. The population of this research that is the entire women post sectiocaesarea on midwifery room Â as many as 85 mother. The results showed thatâ€™s from 31 respondents did proper mobilization well as many as of 28 respondents (55%) who ware healing fast and 3 respondents (9.7%) are healing slowly. T test test results obtained results of Ï = 0.00, Î± = 0.05. Then the Mean Î±. Ï < H0 was rejected and the H1 was accepted so there are influences of early mobilization with wound healing.Discuss: There is a relationship between early mobilization and wound healing. In order to improve the quality of health care health professionals are expected to improve their skills mainly in wound care of post sectiocaesarea either through seminars or training to provide a better service.
Keywords : mobilization, wound healing, sectiocaesarea
The Effect of Soy Milk on Increasing Hemoglobin (Hb) Levels in Pregnant Women
Authors: Rohmah Hajar Nur Fathur
Published: June 2024

Anemia is a condition in which hemoglobin (Hb) levels in the blood are below normal. However, the compliance of pregnant women with the consumption of iron tablets for 90 days is very low at 38%, citing unpleasant side effects (UNICEF, 2019). Alternative food sources that contain high iron are dates and soybeans. Date palm fruit contains carbohydrates, fiber, calcium, vitamins, potassium, iron which serves to replace lost energy. Based on a preliminary survey conducted by researchers in Bantarjaya Village by conducting hemoglobin tests on 5 pregnant women, it was found that 3 pregnant women had anemia and 2 pregnant woman was not anemic. The purpose of this study was to determine the effect of giving date soy milk on increasing hemoglobin (HB) levels in pregnant women in Bantarjaya Village, Bekasi Regency in 2023. The research method was carried out using quantitative research methods with a Quasi-Experimental approach using Wilcoxon statistical tests (Abnormally Distributed). The population in this study was all pregnant women in Bantarjaya Village which was 29 people. The sample in this study was pregnant women in Bantarjaya Village using total sampling technique. Data collection by questionnaire. Data analysis is univariate and bivariate analysis. The results showed that of 29 pregnant women, HB levels during the pretest, the most in mothers who were not anemic, which was 62.1% compared to mothers who had anemia 37.9%. After being given date soy milk (post test), mothers who experienced no anemia increased to 29 people (100%). Meanwhile, mothers who had anemia reduced to 0%. The results of statistical tests are known to Asymp. Sig is 0.000 (P < 0.05), hence it can be concluded that the hypothesis is accepted. This means that there is a difference between the Pretest and Posttest results, so it can also be concluded that there is an influence on the provision of date soy milk on increasing HB levels in pregnant women in Bantarjaya Village, Pebayuran District, Bekasi Regency in 2023. There needs to be a role from health workers, health cadres, local village leaders and the Health Office to increase the knowledge of pregnant women, especially about anemia and how to prevent it.
A Ghost is Disturbing Africa: The Evolution of Black Consciousness from Masks to Ghosts in Contemporary African Cinema
Authors: Gökçek Yusuf Ziya , Yılmaz Muzaffer Musab
Published: June 2024

From 1960s to the present, colonial, postcolonial, social problems and migration have been among the dominant themes of Sub-Saharan African cinema. Today, among the sub-Saharan African filmmakers who grew up in the diaspora and shot their first films in their continent, there are those who use the sixty-year-old theme of African cinema by associating the place and characters with the ghost theme in their films. Mati Diop who was born in Senegal, living in France and Mario Bastos who was born in Angola but professionally trained in USA transform their cities into a dystopian universe through the ghost phenomenon and establish national allegories through their films Atlantique (2019) and Air Conditioner (2020). Although the relationship between time and space in these films is arranged in accordance with realistic codes, the extraordinariness of the narratives makes the current political and social inequality visible. It is also seen that African filmmakers who grew up in the diaspora did not put political inequality into a single cinematic genre, they try to hybridize it. In the study, the descriptive analysis method was used within the notion of Jacques Derrida's hauntology concept to analyse whether there is a parallelism between the political discourse of films and film type, which are hybridization strategies directors apply. It has been seen that the films show situations such as income injustice and inequality in the post-colonial period based on basic principles borrowed from science fiction and horror cinema.
New Computations for RMSEA and CFI following FIML and TS Estimation with Missing Data
Authors: Zhang Xijuan , Savalei Victoria
Published: June 2024

The full-information maximum likelihood (FIML) is a popular estimation method for missing data in structural equation modelling (SEM). However, previous research has shown that SEM approximate fit indices (AFIs) such as the root mean square error of approximation (RMSEA) and the comparative fit index (CFI) can be distorted relative to their complete data counterparts when they are computed following the FIML estimation. The main goal of the current paper is to propose and examine an alternative approach for computing AFIs following the FIML estimation, which we refer to as the FIML-corrected or FIML-C approach. The secondary goal of the paper is to examine another existing estimation method, the two-stage (TS) approach, for computing AFIs in the presence of missing data. Both FIML-C and TS approaches remove the bias due to missing data, so that the resulting incomplete data AFIs estimate the same population values as their complete data counterparts. For both approaches, we also propose a series of small sample corrections to improve the estimates of AFIs. In two simulation studies, we found that the FIML-C and TS approaches, when implemented with small sample corrections, estimated the {population-complete-data} AFIs with little bias across a variety of conditions, although the FIML-C approach can fail in a small number of conditions with a high percentage of missing data and a high degree of model misspecification. In contrast, the FIML AFIs as currently computed often performed poorly. We recommend FIML-C and TS approaches for computing AFIs in SEM.
Literature review on the effect of psychosocial factors on product judgements and willingness to buy foreign products: Case study in Vietnam
Authors: Lan Trần Thị Ngọc , Trung Tran Thanh
Published: June 2024

The aim of this research is to show a theoretical review of studies on psychosocial factors affecting the evaluation and willingness to purchase foreign goods in the past; Identify research gap related to evaluation and willingness to consume foreign goods; Propose a conceptual framework for Vietnamese consumers' willingness to consume foreign goods. The results of this research show that psychosocial factors affecting the willingness to consume foreign goods of consumers in previous studies are classified into six groups of factors: consumer affinity, consumer animosity, consumer ethnocentrism, patriotism, consumer cosmopolitanism, and product judgments. Besides, this study is to help local business managers identify a few factors affecting the willingness of Vietnamese consumers to buy foreign products and understand them. Clearly understand the level and direction of impact of each factor. On that basis, it is possible to make marketing policies to help improve the competitiveness of enterprises in the domestic market compared to products imported. Based on social identity theory, cognitive dissonance theory, realistic group conflict theory, and related studies, the research topic has built a research model of psychological factors. Social impact on the evaluation and willingness to consume foreign products.
The migration of hydrogen in sedimentary basins
Authors: Lodhia Bhavik , Peeters Luk
Published: June 2024

Understanding the mechanisms of large-scale, subsurface hydrogen migration is essential for natural hydrogen exploration and for hydrogen storage assessment. The unique properties of hydrogen make that the timescales of hydrogen migration within geological basins vary from thousands of years to days. Within the shallow Earth, diffusive and advective transport mechanisms are dependent on a wide range of parameters including geological structure, microbial activity, and subsurface environmental factors, e.g., salinity, temperature, and pressure. In this study, we review the nature and timescale of hydrogen migration in geological basins. We also review the mechanisms and timescales of hydrogen migration within diffusive, advective and biologically moderated systems within the shallow Earth. We calculate maximum vertical velocity, vmax, for several key rock types, including sandstone and micrite and discuss the importance of capillary pressure in controlling the mode of hydrogen migration in sedimentary rocks. Finally, We discuss the potential application of causal analyses methods to constrain complex processes in hydrogen systems and assess the challenges of conventional reservoir modelling for hydrogen migration.
Associated factors of the post-stroke disturbance
Authors: rezapour
Published: June 2024

Stroke survivors often suffer from negative emotions that affect their quality of life and their families. However, the factors that are associated with stroke are not well understood, as they are complex and variable. We argue that it is important to study the complex associations of stroke, especially when patients or their families have limited awareness of their conditions. We found that factors such as difficulty communicating, feeling nervous, anxious, tired, depressed are positively associated with a higher likelihood of stroke. However, these associations are not simple, but depend on other factors. For example, trouble concentrating makes the association between difficulty communicating and higher likelihood of stroke stronger, or family income reduces the association between feeling nervous and likelihood of stroke. We also found that higher level of education is negatively associated with likelihood of stroke, but it interacts with subjective health and pain management. By accounting for the complexity of associations between stroke and various factors, we were able to gain a better understanding of the real relationship between stroke and those factors.
Preparing The Heart for Duty: Virtual Reality Biofeedback in an Arousing Action Game Improves in-action Voluntary Heart Rate Variability Control in Experienced Police
Authors: Michela Abele , van Peer Jacobien , Oostenveld Robert , Dorrestijn Wendy , Smit Annika , Granic Isabela , Roelofs Karin , Klumpers Floris
Published: June 2024

Adequate control over evolutionary engrained bodily stress reactions is essential to avoid23 disproportionate responses during highly arousing situations in police. This regulation can be trained24 via heart rate variability (HRV)-biofeedback, a widely used intervention aiming to improve stress25 regulation, but typically conducted under passive, low arousing conditions. We integrated closed26 loop HRV-biofeedback in a newly designed engaging Virtual Reality (VR) action game containing the27 behavioral elements typically compromised under stress. Specifically, we aimed to train in-action28 physiological self-control under high arousal to allow improved transfer to real-life. A pre-registered29 (https://osf.io/cdsbx) quasi-randomized controlled trial in 109 Dutch police trainers demonstrated30 highly significant increases in HRV (32% average), through the engaging and gamified closed loop31 biofeedback. This ability to voluntarily upregulate in-action HRV transferred to game sessions32 without biofeedback (near transfer). Critically, we could additionally demonstrate transfer to a33 professional shooting performance assessment outside VR (far transfer). These results suggest that34 real time-biofeedback in stressful and active action contexts can help train professionals such as35 police in real-life stress regulation
Integrating Approaches to the Role of Metaphor in the Evolutionary Dynamics of Language
Authors: Pleyer Michael , Kuleshova Svetlana , Placiński Marek
Published: June 2024

Metaphor occupies a central role not only in language use, but also in language change and evolution. Specifically, semantic extension motivated by metaphor plays an important role in extending the lexicon of languages. It is this process that enables the emergence of one of the key properties of modern languages, namely that they are open-ended, systematic, polysemous, structured semiotic systems. Here, we review results from three approaches whose integration presents an important cornerstone for an interdisciplinary account of the role of metaphor in the evolutionary dynamics of language: (1) Historical linguistics and diachronic semantics (2) Computational approaches and natural language processing, and (3) Experimental semiotics. Research in historical linguistics has shown that metaphor is a major mechanism of semantic change. Diachronic semantic analyses have not only mapped detailed historical trajectories of semantic extension motivated by metaphor, but also identified common metaphoric pathways of change as well as shared cognitive principles underlying them. Computational approaches and natural language processing have used findings and data from historical linguistics in attempts to automate the detection of metaphoric semantic change and to build data-driven models of the principles underlying it. Experimental semiotics is a paradigm in which participants have to create novel communication systems in the absence of language. It represents a paradigm that can investigate cultural linguistic evolution and the emergence of metaphors and metaphorical extensions under controlled laboratory settings to shed light on the interactional and cognitive principles involved in it. Combining results from these approaches represents an important first step towards an interdisciplinary, integrative account of the role of metaphor, and processes of polysemous meaning extension more generally, in the evolutionary dynamics of language.
Development of Standard Formulations for Porcelain Production from Ohiya Clay
Authors: Imagwuike Ibeh M. , Ndukaa Nwankwojike B. , Anthony Obi I. , Chibundo Nwadinobi P. , Augustine Lewachi A.
Published: June 2024

Optimal designs for producing standard porcelains from Ohiya clay were developed in this study to scale up industrial utilization of this alumina-silicate dominated natural clay reserve. This involved experimental evaluation, modeling and optimization of the effects of firing temperature and varying Ohiya clay-feldspar-silica mix on the properties of porcelains produced from it using desirability optimization methodology. Apparent porosity, linear shrinkage, apparent density, water absorption rate, cold compressive strength and modulus of rupture constitutes the porcelains’ properties evaluated. Results revealed 42:32:20, 42:33:17, 41:32:27 as standard formulation of the clay, feldspar and silica into low/high voltage insulators, tiles and tableware respectively while 1250/1300°C, 1000°C and 1300°C constitute their respective optimal firing temperatures. Six hundred and twenty-five naira (₦625), three hundred and twenty-two naira(₦322), three hundred and fourty seven(₦347) wereused for producing an 11 kV electric insulator, 400×400 mm floor tile and serving dish based on these standard design respectively against their respective market prices of one thousand naira (₦1000), three hundred and fifty naira (₦350), four hundred and twenty naira (₦420) This implies 60%, 9% and 21% profit boost from the developed porcelain designs. Hence, adoption of the models/optimal formulations developed in study for porcelains’ production from ohiya clay is recommended for proficient exploitation of this natural resource.
Differential Transform Method Approach to the Study of an MHD Flow of a Third Grade Fluid with Reynolds’ Model Viscosity and Joule Heating
Authors: Iyoko M. O. , Olajuwon B. I.
Published: June 2024

In this research, the Differential Transform Method (DTM) approach was utilized to analyze a third-grade fluid, a non-Newtonian substance, flowing within a circular duct subjected to magnetic force and joule heating, while incorporating Reynolds' model viscosity. When both the joule heating parameter (J) and the magnetic parameter (M) are zero (J = M = 0), the midpoint temperature (θ(0)) results demonstrate that DTM converges faster compared to the Adomian decomposition method (ADM), with a difference of about 10−2 between the two methods. Graphical representations of the fluid's velocity and temperature reveal that an increase in magnetic force decreases both velocity and temperature, whereas higher values of the joule heating factor lead to an increase in flow velocity and a reduction in the fluid's temperature at the midpoint of the duct.
Modeling of Energy Requirement for Tillage Operations in a Sandy Loam Soil
Authors: Oyelade O. A. , Oni K. C.
Published: June 2024

Tillage, the mechanical manipulation of soil, demands a huge amount of energy in order to accomplish various tasks during field operation. Field tests and evaluation were conducted on 40 different tractor makes and models with matching implements on a sandy loam soil between 2005 and 2011 by the officials of the National Centre for Agricultural Mechanization (NCAM), Ilorin, Nigeria. Implements used for the trials were tractor mounted disc plough and off-set disc harrow. Each tractor was operated on an area of 0.25 hectare (25 m × 100 m) in a randomized complete block design (RCBD). Parameters measured include travel speed, actual and total time of operation, field efficiency, field capacities (effective and theoretical), depth and width of cut, average soil moisture content, average soil bulk density and average soil cone index in order to determine the energy requirement for each tractor-implement combination. Two models for predicting energy requirement during ploughing and harrowing operations were developed using 36 tractor test data. The multiple linear regression method was used for developing the two models. The remaining 4 tractor test data were used for cross-validation. The resulting model equations for ploughing and harrowing operations gave R-squared values of 0.859 and 0.776, respectively. Results obtained from the predicted energy requirement values when compared to that of the observed energy requirement values for both ploughing and harrowing operations gave correlation coefficient values of 0.927 and 0.881, respectively. Cross-validation results for the models developed for energy requirement during ploughing and harrowing operations gave test error values of 4672.3 J m-3 and 2721.1 J m-3, respectively.
Structural Optimization of Simple Span Bridge by Adding Truss Structure
Authors: Koirala Robin , Acharya Ananta , Chitrakar Sailesh
Published: June 2024

A truss is a structure that involves members assembled into connecting triangles so that the overall connection behaves as a single object. Its application is in industrial and building construction. This paper presents a study about optimizing a simple span bridge in terms of stress, the factor of safety, and maximum displacement by adding different structures. A simple span bridge having a span length of 12m was modeled using SolidWorks’s finite element analysis approach. A uniform initial load of 5000N was applied to the beams in all cases to determine safety factors, which helps determine the maximum allowable force, the maximum displacement, and the ultimate yield stress. The result shows that a simple span bridge has an efficiency score, the maximum displacement of 24.17, and 749.9 mm, respectively. Upon design modification by adding Howe truss structure, floor beams, and lateral bracing, a considerable increase in efficiency score was observed with reduced displacement. Among all cases, the optimized bridge has an efficiency score and maximum displacement of 83.69 and 63.08 mm, respectively. This paper aims to find the optimized structure to its full capacity for the given material.
Numerical Investigation of Pelton Turbine with Experimental Validation
Authors: Bijukchhe Pawan Lal , Chitrakar Sailesh , Chaulagain Nabin Raj , Timilsina Prabin
Published: June 2024

Computational Fluid Dynamics (CFD) has been established as a prominent tool for the effective analysis and optimization of hydro-turbines. Various CFD codes, both commercial type and open-source type, are being used in the industry for flow simulation and optimization. For impulse turbines like Pelton, the numerical simulation requires solving of various complex phenomena like multi-phase fluid interaction, multi-reference frame study, jet-bucket interaction and free-surface transient flows. A number of simplifications has to be made in terms of the geometry and flow physics for solving the flow problem in reasonable time and less computational cost.
The aim of this research is to use OpenFOAM to develop a numerical model for flow analysis of Pelton turbine with an existing bucket geometry, and compare the results with experimental data. A numerical model consisting of three buckets was studied, out of which the torque produced in the middle bucket during a transient flow was observed and results were compared with the experimental data from project carried out in Norwegian University of Science and Technology. The jet of water hitting the bucket is modelled as a cylinder with a constant diameter corresponding to a defined opening of the spear valve. The snappyHexMesh utility of OpenFOAM was used for meshing the geometry and interFoam solver with laminar turbulence model was used to simulate the flow over buckets. The results obtained have shown a good concurrence with the actual values from the experiment.
A Review of Solar Assisted Radiant Heating System: Experimentation and Simulation Approach
Authors: Acharya Ananta , Koirala Robin , Banjankar Chirag , Khanal Shuvas , Baral Bivek
Published: June 2024

The rate of energy consumption on the household level for heating and cooling is increasing annually. Due to economic growth and improved living standard, there is a sense of urgency of heating and cooling system for thermal comfort. Considering the thermal comfort, energy consumption, and impact on the environment, researchers and engineers need to focus on innovative heating and cooling solutions. The radiant heating system, which is popular among the Nordic countries, can be a promising future heating solution for Nepali buildings. This paper provides a brief overview of the solar-assisted floor heating system (SAFHS), experimentation, and simulation approach. Three types of paper included for review, the first type- experimental investigation on the floor heating system (FHS), the second type- simulation using ANSYS, and the third type- numerical analysis using TRNSYS. Out of forty-two papers selected for the study. The maximum papers used an experimental approach (11 articles) or TRNSYS (13 documents) to conduct temperature measurement, performance analysis, economic analysis, and estimate the solar fraction. ANSYS Fluent for the simulation of heat flux out of the system (9 papers), temperature field (11 articles), and the thermal comfort analysis (9 documents). 13 articles performed experiments combined with simulation under a standard protocol to validate the model. Both tools provide accurate results with an error below 10 %. The experimental study should be under the standard protocol, while TRNSYS should study the energy performance analysis, economic analysis, etc. The ANSYS Fluent simulates the thermal performance, temperature field, velocity field and conducts thermal comfort analysis. Based on the review, future research should be on taking combined advantages using the coupled-simulation approach.
Mathematical Modelling of the Transmission Dynamics of Malaria Infection with Optimal Control
Authors: Latifat M. Erinle-Ibrahim , Oluwatobi Idowu K. , Abigail I. Sulola
Published: June 2024

In this study, we formed a mathematical model for the transmission of malaria infection in other to explore the transmission dynamics and optimal control. We considered the Sh , Eh , Ih , Rh , Sv , Ev , Iv  model with optimal control considering the effect of two optimal controls (Use of bed net and Treatment). The positivity and boundedness, reproduction number, stability and optimal control analysis were carried out accordingly. Numerical simulations were done. We further discovered the conditions necessary for the stability of both disease-free equilibrium (DFE) and endemic equilibrium. The DFE is asymptotically stable. Also, the endemic equilibrium is stable. The numerical simulation also shows the effective use of bed net and Treatment on the curve. Finally, we deduce that the use of bed nets and treatment over a long period can eventually help to flatten the curve of infection. However, this control intervention has no significant impact on the mosquito population.
Design and Numerical Analysis of a Horizontal Axis Wind Turbine
Authors: Pradhan Shrayas , Chitrakar Sailesh
Published: June 2024

In this paper, mathematical design of a 20 kW horizontal axis wind turbine is conducted along with computational analysis to verify the performance of the designed blade. Blade Element Momentum (BEM) theory is used for the design of blades, empirical BEM relations for geometry calculations for twist distribution and chord distribution are included. The computational analysis on the performance of the geometric design is done using both BEM and Computational Fluid Dynamics (CFD) through Qblade BEM code and ANSYS CFX tool respectively. The rotational periodicity based domain is used for CFD computation and k- ϵ turbulence model is considered. The analysis is done in variable speed conditions (constant tip speed ratio of 6) for wind speed range 2-12 m/s, and change of pitch angles from 1 to 4°. The optimum pitch is obtained as 3° from CFD analysis. The results of torque, Cp/Power, velocity streamlines, and pressure contours are obtained from CFD. Torque curve obtained from BEM and CFD analysis over wind speeds 2-12 m/s showed good agreement, supporting the HAWT geometric design. A maximum Cp of 0.399 was obtained at 12 m/s.
Influence of Sawdust Particles Reinforcement on Physical and Mechanical Properties of High-Density Polyethylene (HDPE) Matrix Composites
Authors: Kuforiji Catherine , Durowaye Stephen , Kassim Kehinde , Lawal Ganiyu
Published: June 2024

The influence of sawdust particles reinforcement on the physical and mechanical characteristics of high-density polyethylene (HDPE) matrix composites was studied for application as sustainable wood plastic composites (WPCs) for housing. The WPCs developed by compression moulding method were characterised. The results revealed web-like structures/cross-linking in the microstructure of the samples, which is a characteristic of polymers. The microstructure revealed a good dispersion of sawdust particles and compatibilizer in the HDPE matrix and bonding, which enhanced the properties of the composites. The control sample C exhibited water absorption of 0.22 % whereas sample S8 having 1.1 to 1.4 mm sawdust particles, 30 wt. % of sawdust particles content, and 3 wt. % of compatibilizer exhibited the least water absorption of 0.14 %. The unreinforced HDPE control sample exhibited a tensile strength of 12.53 MPa while sample S7 with the smallest size (less than 1 mm) and 30 wt. % of sawdust particles content, and 7 wt. % of compatibilizer exhibited the highest tensile strength of 16.22 MPa. This is 29.5 % higher than that of the control sample. The control sample exhibited a flexural strength of 10.2 MPa while sample S7 exhibited the highest flexural strength of 14.85 MPa, which is 45.6 % higher than that of the control sample. The control sample exhibited a hardness value of 13.93 HV while sample S7 exhibited the highest hardness value of 19.17 HV, which is 37.6 % greater than that of the control sample. Samples S5, S7, S8, and S9, which contained high content of sawdust particles demonstrated impact energy values of 34.27, 33.14, 35.17, and 36.46 J respectively. The unreinforced control sample demonstrated a low wear rate value of 0.35 g/Nm. However, sample 7 demonstrated the least wear rate of 0.23 g/Nm, which is 34.3 % lower than that of the control sample. In view of these characteristics, the composites especially sample 7, has the potentials for application as a sustainable building material.
On the Interaction of the Human Immune System with Foreign Body: Mathematical Modeling Approach
Authors: Loyinmi Adedapo Chris , Gbodogbe Sunday Oluwafemi , Idowu Kabir Oluwatobi
Published: June 2024

In this study, we present a simple but novel mathematical model to show the interaction of the five immunological cells in the lymphocyte family – the cytotoxic-Lymphocytes (T), B-cell antibody, killer T – cell (K), the helper T – cell (H) and the Regulatory T – cell (R) –with foreign bodies with or without treatment. The feasibility of the model and important parameters of invasion in mathematical epidemiology: the reproductive number, free and infection persistence equilibrium, local and global stability among others were established. Results confirm the effectiveness of booster (vaccination or drugs) of these cells (of the immune system as recovery of infected cells is quicker and sustainable with vaccinations that boost these body cells. By this study drug producers are better informed about the effectiveness of the boosting components of vaccination and drugs they produce and health workers have good insight and handful understanding of the efficacy of drugs and vaccines administered in the treatment of virus infection.