bluuebunny/crossref_metadata_2025 huggingface dataset:
"A Word for Nature": A Reflection on a Contemplative Teacher-Training Course in the Desert
Authors: Baryosef-Paz Netta , Assaf Nirit
Published: January 2024

This paper reflects on an interdisciplinary, environmental, and contemplative course the authors taught at Kibbutzim College of Education in Tel Aviv. Entitled "I am in Nature," the course was co-taught by an ecologist and a literary scholar. It included a two-day base camping and hiking experience in the Negev Desert and three on-campus meetings. The students read Nature Writing and Ecopoetry, practiced guided mindfulness meditations in the field, and kept contemplative-writing journals. In this community voices piece, we offer an innovative pedagogy for higher education that centers on the integration of the learner’s mind, body, and heart through interdisciplinary, contemplative, and holistic approaches and ways of being.
Enhancing Current Density and Specific Capacitance of Nata de Coco, TEMPO, and MXene Composites through Boiling Time Variations
Authors: Yunus Syukri , Umah Kuntum Khairah , Abral Hairul , Ogah Ogah Anselm , Aulia Aulia
Published: January 2024

This research aimed to enhance the current density and specific capacitance of electronic device materials to replace traditional metal materials. Composite materials that include Nata de Coco, TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl), and MXene achieve this improvement. Composite materials that include Nata de Coco, TEMPO, and MXene accomplish this improvement. Initial testing has shown that these materials initially demonstrated lower electrical properties, particularly in current density and specific capacitance, than conventional metals. To enhance their electrical properties, we employed a boiling method with variations in boiling time. The time intervals chosen were 30, 300, and 480 minutes. In the manufacturing process, Nata de Coco, previously oxidized by TEMPO, was boiled in an MXene solution at a temperature of 70°C. We tested the electrical properties of the resulting composite film, focusing on current density and specific capacitance. The measured current density values, corresponding to the different boiling times, were as follows: 0.000239 A/cm² for 30 minutes, 0.000307 A/cm² for 300 minutes, and 0.000320 A/cm² for 480 minutes. The specific capacitance values were 1.7005 F/g for 30 minutes, 1.9707 F/g for 300 minutes, and 2.0364 F/g for 480 minutes. The percentage increase in current density and specific capacitance values from 30 minutes to 300 minutes of boiling was 22% and 13.7%, respectively. For boiling from 300 to 480 minutes, the increase was 4.06% for current density and 3.22% for specific capacitance. These findings suggest that longer boiling times result in improved electrical properties.
Subsequently, characteristic tests were performed, including XRD (X-ray diffraction) and SEM (Scanning Electron Microscope) analyses. The XRD results indicated that longer boiling times caused a rightward shift of the diffraction peak with a narrower peak width, signifying increased crystallinity. The highest X-ray intensity was observed in the composite boiled for 480 minutes, with a power of 847.23 counts per second (cps) and a two-theta angle of 21.31°. Additionally, the smallest crystal size was achieved with a 480-minute boiling time, measuring 138.2851 Å. In the SEM analysis, it was evident that longer boiling times led to a higher fraction of MXene within the composite film.
Antimicrobial resistance patterns of urinary tract infection organisms isolated from pregnant women’s urinary samples at lancet clinical laboratories in Zimbabwe, 2021
Authors: Mahamane Salissou Maibouge Tanko
Published: January 2024

Worldwide, bacterial infections are a main cause of morbidity and mortality, mainly in low-income countries. The world emergence of antimicrobial resistance negatively impact the management of infectious diseases. Nationwide, there is an increasing concern over antimicrobial resistance (AMR) recently evaluated to contribute for more than 700,000 deaths per year across the globe. The key objective of this present study is to characterise the antimicrobial resistance patterns of urinary tract organisms isolated from pregnant women’s urinary samples analysed at Lancet Clinical Laboratories in Zimbabwe from January to December 2021. This was a laboratory based, cross sectional study conducted among pregnant women’s samples analysed at the laboratory. Microbiology results logbook and patients’ clinical data were used to evaluate basic descriptive statistics (proportions and mean) of participants engaged in this study. We describe the characteristics of variables of respondents where categorical variables were portrayed in the form of numbers and percentages in table, figures format. The prevalence of UTI was 60% with the main isolated bacteria being Escherichia coli (28.10%), Staphylococcus aureus (9.18%) and Kleibseilla pneumoniae (10.27%). There was association between gestational ages with UTI. The prevalence of AMR was 54%. The highest resistant drugs being Ampicillin (60%), Vancomycin (45%) and Penicillin (40%), the least resistant were chloramphenicol (15%), ciprofloxacin (23%) and nitrofurantoin (25%). The prevalence of AMR was high with regards   to AMR prevalence rates in a study conducted in Zimbabwe Bulawayo. This is mainly due to the misuse of drugs therefore re-enforcement of prescription-only policies is crucial.
Molecular phylogenetic analysis of the taxa belonging to the genus Carlina L.(Asteraceae) in Turkey
Authors: SANÖN Berna
Published: January 2024

Asteraceae, is a cosmopolitan family in terms of natural chemistry, flowering morphology, and adaptation to habitat. Even if there are numerous taxonomic and new molecular phylogenetic studies, the ancestors of the Asteraceae family are not well defined. Study material under consideration, Carlina L., is a member of the tribe Cardueae which belong to Cichorioideaea subfamily of the Asteraceae. The genus Carlina is represented by C. lanata, C. vulgaris, C. tragacanthifolia, C. biebersteinii, C. intermedia, C. oligocephala, C. involucrata subsp. libanotica, C. corymbosa, C.graeca in The Flora of Turkey. In this study, molecular phylogenetic analysis of the genus Carlina, which has a natural distribution in Turkey, has been made. The DNA isolation was performed using phenol- chloroform- isoamylalcohol. ITS (Internal Transcribed Region) of the nuclear ribosomal DNA (nrDNA) and the trnL-F (Transfer RNA coding) region of the chloroplast DNA sequences were used as molecular markers. Carlina was selected as ingroup taxon and Cardopatium, Atractylis and Carthamus were outgroup taxa. Taxa belonging to the genus Carlina distributed in Turkey were analyzed phylogenetically using Branch-and-Bound algorithm with maximum parsimony criterion. Data set analysis using 952 best parsimony trees was made. One tree topology was the most reliable and clads have strongly Bootstrap support.
Mimari tasarım eğitiminde 21. yüzyıldaki değişimin bibliyometrik analiz yöntemi üzerinden incelenmesi
Authors: DEMİRCAN Derya , PALABIYIK Serkan
Published: January 2024

Mimarlık eğitiminde teorinin medya ile birlikte geliştiği açıktır. Her ortam varsayımlarını, fırsatlarını, olanaklarını ve zorluklarını beraberinde getirmektedir. Bilgisayar teknolojilerinin gelişimi ile dijital araçların mimaride kullanımı oldukça yaygınlaşmış, fakat hem öğrenciler hem de öğreticiler tarafından yanlış anlaşıldığından ve uygun şekilde kullanılmadığından, mimari pedagojide boşluklara yol açmıştır. Bu çalışmada mimarlıkta sayısal tasarım ile ortaya konulan potansiyellerin farkındalığı ve sayısal tasarımın mimari tasarım eğitimine adaptasyonu noktasında kullanılan/önerilen pedagojik yöntemler üzerine yapılan araştırmalara odaklanılmaktadır. Çalışma kapsamında birçok farklı akademik disiplin için kapsamlı ve çoklu veri tabanlarına erişim sağlayan “Web of Science” örneklem alanı olarak belirlenmiştir. Örneklem alandaki yayılımın ve kullanımın araştırılması sürecinde, belirli bir alanda yayımlanan kitap, makale ve diğer yayınları nicel olarak analiz etmek için kullanılan istatistiksel yöntemlerden biri olan bibliyometrik haritalama yöntemi kullanılmış ve elde edilen verilere ait bibliyometrik ağların görselleştirilmesinde; "VOSviewer" yazılım aracı kullanılmıştır. Sonuçlar sayısal teknolojilerin bu alanda yapılan çalışmalarda yaygın olarak kullanıldığını, ancak tasarım yöntemi ile sayısal araç/ların bir arada etkili bir şekilde kullanıldığı pedagojik yöntemlerle ilgili araştırmaların sınırlı sayıda olduğunu göstermektedir. Ayrıca çalışmadan elde edilen veriler ve sonuçlar günümüz eğitimcilerine, tasarım pedagojisi ile ilgili daha geniş bir etki alanı açmanın potansiyel ve olanaklarını keşfetmeleri için bir perspektif sunmaktadır. Bu nedenle çalışma, mimari tasarım eğitiminde mimari tasarım stüdyolarının planlanmasına yönelik ileriye dönük yapılacak çalışmalara katkıda bulunmaktadır.
AISI 1040 Çeliğinde yapısal yapışma bağı dayanımının statik ve dinamik zorlama şartları altında incelenmesi
Authors: OĞUZ Yaprak Nisa , GEDİKLİ Mustafa Burak , TOKTAŞ Gülcan , ORAL Ali
Published: January 2024

Bu çalışmada; rüzgar türbin kulelerinin iç yüzeylerinde merdiven bağlantı elemanı olarak kullanılan braketlerin adezyon özelliklerinin incelenmesi amaçlanmıştır. Bunun için AISI 1040 çeliği parçalar akrilik tipi yapısal bir yapıştırıcı ile birleştirilerek numuneler hazırlanmıştır. Yapışma bağlantılarının statik (kayma ve eğilme) ve dinamik (yorulma) mekanik özellikleri belirlenmiştir. Yorulma deneylerinin gerçekleştirilebilmesi için mevcut bir yay yorulma cihazının tasarımında değişiklikler yapılmıştır. Modelleme ve analiz programları yardımıyla cihazın tasarım doğrulama çalışmaları ve mekanik deney sonuçlarının analizleri yapılmıştır. Dinamik analizlerde cihazın iki kritik parçasında (biyel kolu ve ana parça) güvenlik faktörlerinin tasarım gereksinimleri için uygun olduğu görülmüştür. Statik ve dinamik deneyler sonucunda hatasız yapışma gerçekleşen numunelerde kohezyon tipi homojen ayrılma gözlenmiştir. Statik eşdeğer gerilme değerinin %50’si kadar değişken gerilme ve altındaki gerilmelerde yapışma bağının sonsuz ömre sahip olduğu görülmüştür.
Effects of Orbit Raising and Deorbiting in Source-Sink Evolutionary Models
Authors: Gusmini Davide , D’Ambrosio Andrea , Servadio Simone , Siew Peng M. , Di Lizia Pierluigi , Linares Richard
Published: January 2024

The sustainability of the low-Earth-orbit (LEO) environment is threatened by the growing number of anthropogenic space objects planned to be launched in the coming years. This paper investigates the evolution of objects residing in LEO through the MIT Orbital Capacity Assessment Tool (MOCAT), an evolutionary multishell, multispecies source-sink model. The proposed novelty considers the flow of objects crossing multiple shells during orbit raising and deorbiting maneuvers, modeled through the secular variation of the semimajor axis under a low-thrust continuous applied control. To this aim, a higher-fidelity MOCAT version, including active satellites, derelicts, debris, and rocket bodies, has been developed and used. The results demonstrate that incorporating orbit transfer fluxes into the model results in a higher number of collisions, which leads to a greater quantity of debris and poses a greater threat to the safety of LEO.
Structural Integrity of Welded Joints: An Investigation of the FPSO Module Stools
Authors: Pereira Marcos , Santos Tiago Felipe de Abreu , De Lima Nathalia Bezerra
Published: January 2024

The main goal of the present work is the investigation of a construction and integration of topside modules for an FPSO in Brazil. Most of the topside module structure manufacturing was subcontracted to a third-party company in Europe. During assembling work undergoing at the construction site, several structural details nonconformities were reported by the EPC Group quality control team, e.g., misalignment of stiffeners at the diamond plate and stool connections, geometry irregularities, and unexpected thickness changes on the connection of diamond plates with the correspondent I beam flanges of the pancakes, unexpected bevel buttering to correct joint imperfections which presented several weld flaws in it. Topside structures are subjected to cyclic loading during operation, hence, subjected to fatigue loading. The latter is of concern since the structural integrity of the welded joints must be met for the entire life of the FPSO. The EPC Group required an independent appraisal of the welded joints and structural details nonconformities. They also requested an Engineering Critical Assessment (ECA) on critical joints to be carried out to determine if there might be any flaws compromising the structural integrity of the topsides. Finally, ECA recommended mitigation actions, which could contribute to new topside module integrations for FPSO in Brazil.
Previsão de um Produto estratégico de uma Indústria Farmacêutica em Pernambuco
Authors: Albuquerque Emídio Cavalcanti de , Oliveira Fabiana Silva de , Barbosa Filho Genival Soares , Morais Gicevalter Couto Simões de , Cavalcanti Juliano Antônio Canto
Published: January 2024

A Indústria Farmacêutica  sofreu influência do mercado, políticas regulatórias e crises de saúde pública que a impulsionou a se adaptar aos novos cenários e desafios, para sobrevivência e alavancar negócios. O estudo analisa  os dados históricos de movimentação de um produto estratégico, de uma indústria farmacêutica do Estado. Com esta análise pretende-se responder a questão - Como desenvolver instrumentos para realizar Análises  prescritivas e preditivas da movimentação do produto e valor de vendas deste produto para fins de suporte à tomada de decisões estratégicas?  Para responder a problemática tem-se os objetivos: No âmbito geral,  realizar uma análise prescritiva  e preditiva do produto a partir da base de dados históricos de vendas. Em específico,  desenvolver insights para verificar produto carro chefe da empresa, e performance de vendas, bem como prever valor de vendas por criação de modelos de predição para série temporais. O estudo trouxe como resultado uma predição aceitável de um produto específico para as partes interessadas gerando discussões sobre o resultado e novas propostas para aplicar a mesma estratégia para cenários diferentes.
Machine Learning Models to Identify Anomalies in the Production of Flat Glass
Authors: Da Silva Lima Pedro Gabriel , Maciel Alexandre Magno Andrade , Resnick Noam Eyal , Terceiro Neto Aristóteles , Leite Dênis
Published: January 2024

This work presents an innovative proposal for the prediction of defects in industrial glass refining processes. Although it is a complex process with several points that can cause defects, the current approach of specialists is only reactive, that is, they can only act after the damage has been caused. This study proposes the use of data collected from the industrial processes of a real company as a case study to create prediction models, in order to identify a possible failure before it occurs. The objective is to use multiple linear regression as a model and allow specialists to take preventive corrective measures, avoiding damage and reducing production costs.
Aplicação de Aprendizado de Máquinas para Detecção de URLs Phishing
Authors: Resnick Noam Eyal , Bastos-Filho Carmelo José Albanez
Published: January 2024

Ataques de phishing são um dos ciberataques mais comuns e difíceis de mitigar de forma automatizada. Nos últimos anos, foram propostas uma série de técnicas de detecção e mitigação automatizadas com sucessos variados. Devido ao grande volume de phishing criado diariamente e um tempo de vida médio baixo, é necessária uma técnica de classificação de phishing que consiga atuar de forma rápida e automática. Nesse projeto, propõe-se utilizar técnicas de aprendizado de máquina para realizar essa classificação. Foram coletados mais de 50.000 urls, com mais de 20.000 pertencentes a páginas web que continham um ataque phishing. A partir dessas urls, foi construído um conjunto de dados contendo 15 atributos para o treinamento, validação e testes de modelos de inteligência computacional. Foi realizado um trabalho em três etapas: construção do conjunto de dados, treino de modelos de classificação, e avaliação do desempenho dos modelos treinados. Foram treinados modelos de classificação utilizando os algoritmos Random Forest, XGBoost e Rede Neural Artificial. As métricas utilizadas para avaliar o desempenho dos modelos foram acurácia, precisão e revocação. Os resultados experimentais mostraram o melhor desempenho do modelo de classificação utilizando Floresta Aleatória nas métricas de acurácia, precisão, revocação e F1 Score.
Otimização de Tempo de Ciclo por Predição
Authors: Pinheiro Brandão Laislla Carolina , Gonçalves Afrânio Augusto Gomes , Dantas Bruno De Magalhaes , Teixeira Tiago Augusto , Maciel Alexandre M.A.
Published: January 2024

O desenvolvimento de um agente de priorização e a análise estatística desempenham papéis fundamentais na busca por otimizar o tempo de ciclo e melhorar a eficiência produtiva, possibilitando antecipar melhor desvios no tempo de ciclo e a levantar oportunidades de intervenção com antecedência. Analisando o problema de tempo de ciclo por uma abordagem de séries temporais, foram desenvolvidos modelos de predição que permitissem prever o valor de tempo de ciclo em um instante futuro. Três abordagens foram implementadas neste estudo, tendo como base os trabalhos relacionados: um modelo ARIMA, um modelo híbrido consistindo de ARIMA + MLP, e uma rede recorrente LSTM. Os resultados sugerem que as três abordagens possuem bons resultados quando aplicados à série de tempo de ciclo e resultados mais precisos são encontrados quando são combinados modelos que modelam os componentes lineares e não lineares das séries temporais.
Sistema de Recomendação de Hidrômetro e Análise Preditiva de Perdas em Redes de Telemetria
Authors: Guerra Mário Stela , De Albuquerque Gabriel Correia , Lundgren Antônio Victor Alencar , Fernandes Bruno José Torres , Maciel Alexandre Magno Andrade , Bastos Filho Carmelo José Albanez
Published: January 2024

Os sistemas de recomendação são importantes ferramentas que ajudamna avaliação de dados telemétricos a partir da identificação de padrões e tendências. Neste trabalho, os autores apresentam a análise realizada nos dados da rede hídrica de um município da região sul brasileira para a detecção de padrões e criação de um sistema de recomendação de hidrômetros, baseado no perfil do usuário. Para tanto, houve de ser estruturado um estudo correlacional entre características de consumo epropriedades dos aparelhos de medição, de modo a traçar quais atributos de maior influência no gasto de água. Após a exploração descritiva dos dados foi verificado que tanto o tipo, quanto o modelo do hidrômetro e idade do aparelho poderiam interferir nos resultados de medição do usuário e comportamento do consumo. Dessa forma, foi possível utilizar os resultados da análise para a criação de um sistema capaz de identificar e gerar comprovações visuais dos cruzamentos entre as características desejadas.
Avaliação de Produtividade e Saúde Vegetal em Mangueira a partir de Dados de Luminosidade de Abertura de Copa
Authors: Paiva Heber Do N. , Silva Jorge L. B. da , Teles Kaandro Do N. , Lima Júnior Claudemiro , Maciel Alexandre M. A. , Bastos-Filho Carmelo
Published: January 2024

O Vale do São Francisco é central na produção e exportação de manga no Brasil, sendo crucial para a economia local. A mangicultura, em conjunto com a viticultura, lidera a atividade econômica na região. A desfolha é vital para promover o arejamento das plantas, reduzindo pragas e doenças, mas a falta de parâmetros definidos torna sua avaliação subjetiva. A pesquisa visa correlacionar dados de luminosidade das mangueiras com a qualidade dos frutos, buscando determinar um nível ideal de luminosidade. Plantas foram divididas em parcelas, e 100 frutos de cada foram avaliados. A análise de dados, realizada em Python, incluiu gráficos de correlação, árvores de decisão e matrizes de confusão. Resultados promissores mostram forte correlação entre maior luminosidade e frutos de melhor qualidade destinados à exportação, apesar de alguns danos observados. A árvore de decisão classificou eficazmente frutos, identificando os de melhor qualidade com menor incidência de pragas e doenças. A matriz de confusão teve desempenho satisfatório na previsão de lotes com maior volume de frutos exportados. Conclui-se que maior luminosidade e abertura da copa estão associadas a melhor qualidade dos frutos. O estudo sugere a possibilidade de estabelecer um valor ideal de luminosidade para otimizar a produção de mangas de alta qualidade com pesquisas adicionais.
PENGARUH KOMPOS KULIT DURIAN DAN NPK ORGANIK TERHADAP PRODUKSI TANAMAN PARE (Momordica charantia L.)
Authors: Okriyanto  , Siti Zahrah  , Saripah Ulpah
Published: January 2024

The Effect of Compost Durian Peel and Organic NPK on the Production of Bitter Gourd (Momordica charantia L)”. The purpose of this study was to determine the interaction effect as well as the main effect of durian rind compost and organic NPK on bitter melon production. The research was carried out on the agricultural land of the Food Crops Seed Center, Kuantan Singingi Regency, Jalan Perintis Kemerdekaan KM 2, Pulau Godang Village, Kuantan Tengah District, Kuantan Singingi Regency. The study was conducted for 4 months, from December to March 2023. This study used a factorial Completely Randomized Design consisting of 2 factors, namely the first factor of durian peel compost (K) consisting of 4 treatment levels, namely 0, 1, 2 and 3 kg per plot. The second factor was the dose of Organic NPK (N) which consisted of 4 treatment levels, namely 0, 5, 10 and 15 gram plants. Parameters observed were flowering age, harvesting age, number of fruit per plant, fruit weight per plant, fruit weight per fruit, largest fruit diameter, longest fruit length and number of remaining fruit. Observational data were analyzed statistically and continued with the BNJ test at the 5% level. The results showed that the interaction of durian rind compost and Organic NPK significantly affected the parameters of flowering age, harvesting age, number of fruits per plant, fruit weight per plant, fruit weight per fruit and longest fruit length. The best treatment was a dose of 3 kg of durian peel compost per plot and 15 grams of organic NPK per plant. The main effect of real durian peel compost on all observation parameters. The best treatment is durian peel compost at a dose of 3 kg per plot. The main effect of real organic NPK on all observation parameters. The best treatment is Organic NPK with a dose of 15 grams per plant.
IDENTIFIKASI KERAGAMAN FENOTIP KARAKTER KUALITATIF DAN KUANTITATIF KELAPA SAWIT (Elaeis guineensis Jacq.) ASAL ANGOLA
Authors: Achmad Fathoni  , Siti Zahrah  , Fathurrahman
Published: January 2024

The research entitled identification the phenotypic variance of qualitative and quantitative characters of oil palm (Elaeis guineensis Jacq.) origin of Angola. The objective of the study was to determine the specific characteristics of the oil palm population of dura and tenera Angolan germplasm on phenotypical characterization whether qualitatively and quantitatively as well. The research was conducted in seeds garden of the oil palm seeds company in Siak Hulu of Kampar District. The genetic material used in this study was oil palm germplasm as much as 1996 oil palms in 15.50 hectars. The Angola accession population consisted of 80 Dura accessions with 1,309 oil palms and 26 Tenera Accessions with 687 oil palms. The analytical method used is the Coefficient of Phenotypic Variation (KKF) and Principal Component Analysis (PCA). The results show that the main component of the quantitative variable can explain the variation of the Angolan oil palm population by 79.76% with parameters such as oil to bunch (%), oil to fruit (%), dry mesocarpto fruit (%), relative leaf area (m²), wet mesocarp to fruit, frond length, palm height, number of leaves, periole width (cm), and petiole cross-section (cm²). The proportion of low KKF with a high O/B average is found in AGO001, AGO086, AGO101, and AGO 106.
Early childhood educators' beliefs on increasing fundamental motor skills by playing games in a physical education context: The contradictory belief
Authors: Friskawati Gita Febria , Ma’mun Amung , Mahendra Agus
Published: January 2024

The development of fundamental motor skills (FMS) is crucial and should begin in early childhood. As of now, several early childhood educators in Indonesia, particularly in West Java, think that incorporating playground games into the classroom curriculum is the best course of action for raising children’s FMS. This study aimed to present statistics on FMS findings for early childhood who have incorporated physical activity into the curriculum and to demonstrate that these results are still in conflict with teachers’ beliefs. Ex post facto research was applied to one of the early childhood education pilot programs in West Java, Indonesia, including a total of 30 kids. This school’s long-standing intervention involves giving children 30 minutes of structured playtime and 30 minutes of unstructured playtime at the start of each learning period. The Test of Gross Motor Development-2 (TGMD-2) was used to measure FMS. The study’s findings showed that both boys’ and girls’ FMS in both locomotor and manipulating components of the movement were very lacking and inversely proportional to teachers’ belief who believe that this activity will improve children’s motor skills. It is recommended that physical education specialists accompany both structured and unstructured play programs conducted on school playgrounds so that the early childhood education curriculum's programs are properly validated to raise children's FMS following Developmentally Appropriate Practice (DAP).
Public Speaking Untuk Master of Ceremony
Authors: Kristina Dina
Published: January 2024

emua orang dapat berbicara, tetapi tidak semua orang termasuk mahasiswa memiliki keterampilan untuk berbicara di depan umum (public speaking). Salah satu contoh kegiatan public speaking yang menuntut skill komunikasi secara verbal dan nonverbal yaitu pada profesi pembawa acara atau yang lebih dikenal masyarakat umum dengan kata MC (master of ceremony). Dalam menjalankan tugasnya, seorang MC pada dasarnya akan berbicara di depan khalayak umum dan pada praktiknya seorang MC tidak hanya sekedar berbicara dan membacakan acara akan tetapi harus mampu berbicara yang berkesan dan bermakna. Penelitian ini adalah untuk mengetahui bagaimana peran public speaking untuk master of ceremony (MC) dalam meningkatkan skill komunikasi verbal dan nonverbal pada mahasiswa. Metodologi penelitian yang digunakan adalah kualitatif dengan teori fenomenologi. Subjek penelitian adalah mahasiswa yang tergabung dalam komunitas MC (Master of Ceremony) di Fakultas Ilmu Komunikasi Universitas Bhayangkara Jakarta Raya. Berdasarkan hasil penelitian, public speaking memegang peranan penting dalam meningkatkan skill komunikasi dan menanggulangi ragam gejala kecemasan komunikasi baik secara verbal maupun nonverbal pada mahasiswa komunitas Master of Ceremony (MC) di Fakultas Ilmu Komunikasi Universitas Bhayangkara Jakarta Raya.
Heritable, mutable, and selectable spatial patterns from bistable chemical reaction networks in weakly-coupled reactor arrays
Authors: Peng Zhen , Plum Alex M. , Adam Zachary R.
Published: January 2024

The origins of genetic information processing remain a mystery in prebiotic chemistry research. Genetic systems encode information as digital sequences of nucleotide residues and require multiple interdependent and complex components that were likely to have been established late in the prebiotic evolutionary process. Candidate predecessor systems are potentially insightful for examining how genetic systems could have been scaffolded by alternatives that were simpler, yet capable of performing comparable functions. Some researchers have proposed that relative concentrations of simple chemical species (i.e., chemical compositions) could encode heritable information in an analog manner. While conceptually plausible, it is difficult to explain how most forms of analog inheritance (which can be highly sensitive to interference) could underpin emergent characteristics that are necessary for adaptive evolution afforded by high-fidelity, polymer-based digital inheritance. Here, by simulating bistable reaction systems with two simple autocatalytic cycles in lattices of connected flow reactors, we show that without linear polymers, it is still possible to encode spatial configurations of discrete states of chemical compositions that are heritable and mutable. Different configurations can have differing likelihoods of propagating to new environments, which means that they can respond to at least some types of selective processes. Taken together, these spatial configurations are heritable, mutable, and selectable (HMS). They are similar to analog inheritance because they depend on chemical compositions, and they are similar to digital inheritance because they consist of spatially distributed, discretized units. Although such discrete HMS spatial configurations are far less heritable, more mutable, and less selectable than nucleotide-sequence-based digital inheritance, they represent a possible bridge between analog and digital inheritance in complex chemical systems.
Unveiling the Synthesis, Spectral Characterizations, and Electrochemical Potential of Novel (E)-Furan-2-yl Acrylohydrazides: An Exploration in Molecular Design
Authors: Penayori Marie-Aimée Coulibaly , Coulibaly Souleymane , N'Dri Sieny Roger , Evrard Ablo , Brise Kassi Amian , Drissa Sissouma , Adjou Ané
Published: January 2024

In this study, we present the synthesis of novel derivatives of 3-furan-2-yl acrylohydrazide using a meticulous three-step reaction sequence. The synthesis ends up in the condensation of (E)-3-(furan-2-yl) acrylohydrazine (3) with diverse benzaldehyde and acetophenone derivatives. Comprehensive characterization of the synthesized compounds was achieved through 1D NMR spectroscopic analyses (1H and 13C NMR), 2D NMR spectroscopy (HSQC, NOESY), and high-resolution mass spectrometry (HRMS). The investigation of 1H NMR data at room temperature in deuterated dimethyl sulfoxide (DMSO-d6) unveiled the existence of (E)-3-(furan-2-yl) acrylohydrazide derivatives (4a-h) in a conformational equilibrium, manifesting as a mixture of synperiplanar E (sp E) and antiperiplanar E (ap E), or synperiplanar Z (sp Z) and antiperiplanar Z (ap Z). Notably, compounds 4a and 4b predominantly adopted the sp E conformer (Ec=c sp EC=N), while compounds 4c and 4d favored the antiperiplanar conformation. For the remaining compounds (4e-h), both conformers were nearly equimolar, with a marginal preference for the anti over the syn conformer. Interestingly, compounds 4f and 4h exhibited a prevalence of the apZ conformer (Ec=c ap ZC=N), while compound 4e featured the apE conformer (Ec=c ap EC=N). UV-visible absorption spectra for the N-acylhydrazones (4a-h) indicated absorption within the 570-635 nm range. Furthermore, cyclic voltammetry results demonstrated the capacity of the synthesized (E)-3-(furan-2-yl) acrylohydrazide derivatives (4a-h) to undergo quasi-reversible oxidation and reduction processes on a platinum electrode. These findings contribute valuable insights into the conformational dynamics and electrochemical behavior of this class of compounds, holding significance for applications in diverse scientific and technological domains.
A quantitative active template click reaction (AT-CuAAC) for the synthesis of mechanically interlocked nanohoops
Authors: May James , Fehr Julia , Lorenz Jacob , Zakharov Lev , Jasti Ramesh
Published: January 2024

Mechanically interlocked molecules (MIMs) represent an exciting yet underexplored area of research in the context of carbon nanoscience. Recently, work from our group and others has shown that small carbon nanotube fragments—[n]cycloparaphenylenes ([n]CPPs) and related nanohoop macrocycles—may be integrated into mechanically interlocked architectures by leveraging supramolecular interactions, covalent tethers, or metal-ion templates. Still, available synthetic methods are typically difficult and low yielding and general methods that allow for the creation of a wide variety of these structures are limited. Here we report an efficient route to interlocked nanohoop structures via active template Cu-catalyzed azide-alkyne cycloaddition (AT-CuAAC) reaction. With the appropriate choice of substituents, a macrocyclic precursor to 2,2’-bipyridyl embedded [9]CPP (bipy[9]CPP) participates in the AT-CuAAC reaction to provide [2]rotaxanes in near-quantitative yield, which can then be converted to the fully pi-conjugated catenane structures. Through this approach two nanohoop[2]catenanes are synthesized which consist of a bipy[9]CPP catenated with either Tz[10]CPP or Tz[12]CPP (where Tz denotes a 1,2,3-triazole moiety replacing one phenylene ring in the [n]CPP backbone).
IMPACT OF ICTS USAGE ON SMALLHOLDER FARMER’S ADAPTATION STRATEGIES: A STRUCTURAL EQUATION MODELING STUDY IN NIGER STATE
Authors: Nabara Isah Shehu , Yakubu Mohammad , Shehu Umar Abubakar
Published: January 2024

The study was conducted in Kontagora Local Government Area of Niger State between June and August 2021. The purpose of this study was to determine how ICTs affected smallholder farmers’ adaption strategies. 240 respondents were chosen at random using a multiple-stage random sampling procedure for the study. The levels were determined using frequency and percentages of summated scores by categorization into high moderate and low using range. The impacts of ICTs on adaptation strategies were determined using structural equation modeling (IBM SPSS Amos 20). The study revealed high-level adaptation strategies (M=3.69) and a moderate level of ICTs (M=3.51). The research also showed how ICTs affect adaptive strategies. The impact of radio (β= 0.355, CR = 4.145, P =.001), mobile (β=.322, CR= 4.111, P=.000), television, (β=.211, CR=3.717, P=.000) on adaptation strategies were positive and statistically significant. The results recommends that planned interventions be carried out to coordinate ICT/telecommunications agencies with those in charge of adaptation policy and planning, notably National Adaptation Plans, for more efficient planning and implementation.
ONLINE NEWS STORIES ON THE 2022 PRESIDENTIAL CANDIDATES
Authors: L. Pasia Yolanda
Published: January 2024

News being factual and trustworthy is one of the most reliable information. Facts must be interpreted carefully to influence or inform readers rightly and not be victimized by false information. With the presence of COVID 19 pandemic, online news has extended the reach of news making it accessible to many users. Certainly, online news becomes an important news source for many people specifically those who are not fully engaged in watching television. However, with this greater reach comes greater responsibility to report fair and truthful information since it penetrates in the marketplace of ideas. This study used qualitative approach through content analysis to analyze the online news stories. It analyzed news stories posted by the top three online news websites of GMANews.com, ABSCBNnews.com and inquirer.net for three months. Findings show that GMA News, ABS-CBN News Online and inquirer, net news stories are presidential candidates programs and platforms, campaign activities, accomplishments of presidential candidates, poll survey results and trending interviews of candidates. It also discovered that posting news stories not only inform target audience but also educate, spread awareness, and invite formation of opinion. It also divulged that these three sources deliver credible information and practice fair reportage. An action plan is proposed to help voters be oriented and knowledgeable on newsworthiness and news credibility.
REMOVAL OF CHROMIUM FROM TANNERY WASTEWATER USING MODIFIED CORN COBS
Authors: Madu Ijanu Emmanuel , Miko Aisha , Adeleye Adeniyi Olarewaju , Tukur Mohammed Ahijo , Amoo Afeez Oladeji , Idris Mohammed
Published: January 2024

Chromium (Cr) is a major pollutant found in tannery effluent is detrimental to human health and the ecosystem. The present research aimed to remove Cr from tannery wastewater using corn-cobs as adsorbent. The tannery wastewater was collected from one of the tannery industries in Kano, Nigeria. APHA 2012 method was employed in establishing the physicochemical properties of the sampled wastewater. Using the batch method, effect of adsorbent dosage, pH and contact time on the adsorption of Cr by corn-cob was determined. Results show that the percentage removal of Cr from the wastewater ranging from 67% to 87% was obtained by using the adsorbent. However, the contact time (0, 10 and 20 minutes) of the adsorbent had significant (p<0.05) difference on the concentrations (65.60, 37.65 and 25.38 mg/L) of Cr removed from the sampled tannery wastewater respectively. In conclusion, corn-cob has shown be an efficient adsorbent in the removal of Cr from wastewater.
DRINKING WATER PREFERENCE AND MICROBIOLOGICAL CONTENTS OF SELECTED, LOCALLY CONSUMED SACHET WATER AT SINKOR, LIBERIA
Authors: Flomo Peter O. , Adepoju Adeyinka Olufemi , Femi-Adepoju Grace Abiola , Joe-Wia Faeflen Sarwee
Published: January 2024

This research assesses the microbiological quality and reasons for brand preference among consumers of sachet water samples in Sinkor area, Monrovia, Liberia. The study looked at the bacterial profile of sachet water in Sinkor, Monrovia, and considers factors that determined individuals’ preference of each water brand. A survey consisting of questionnaires was administered to 102 respondents in order to determine the several parameters, while the bacteriological quality assessments of sachet water samples were determined by the Most Probable Number (MPN), and pH value was determined by the pH meter. Five mostly patronized water brands were involved. Results showed that the order of factors considered before choosing a brand is in the following order: good taste> clean appearance>good packaging> odorlessness while they detested water brands based on same factors in the following order: bad odor> bad taste>possession of color or particles > rough packaging>lacks expiry date on the container. In addition to these, microbiological profile revealed that all of the sachet water samples analyzed fulfill WHO requirements. Monitoring bodies in charge of drinking water in the study area must be encouraged to maintain standards.
APPLICATION OF GROUND MAGNETIC METHOD FOR DELINEATION SUBSURFACE STRUCTURAL CONTROL ON SULPHIDE ORE DEPOSIT IN BENUE TROUGH; A CASE STUDY OF IKENYI IZZI
Authors: Akpa Chibuike , , N. Nnabo Paulinus , Arisi Obasi Chidiebere Chukwu Ania Ikenna , Obasi Philip Njoku , Nworie David Chibuzor
Published: January 2024

The sulphide ore mineralization occurrence in the area is structurally controlled. However, wrong structural delineation has led to some recorded mine failures and revenue loss faced by investors and government. Therefore, subsurface structural mapping is crucial for the successful and reliable delineation of sulphide ore enrichment zone within the area. To this effect ground magnetic method was used to appraise the structural elements associated with the sulphide mineralization in Ikenyi Izzi area, part of Southern Benue Trough. The total magnetic field intensity (TMI) was recorded, corrected, and separated into regional and residual magnetic fields. The TMI varies from 33259.7–33329.7nT with an average field value of 33299.4nT. Whereas residual susceptibility value ranges from -36.3–25.7nT with significant magnetic closures which correspond to the areas of low and high susceptibility values. Three dominant structural geometries was identified in the area; NE-SW>NW-SE>N-S with few E-W structures. The NE-SW and some N-S structures characterized areas of high magnetic anomaly closures and are associated with the regional trends of the igneous intrusive rocks, whereas NW-SE structures host the ore deposit (Trending ≥N300°) and dominantly associated with areas of low magnetic anomaly zones. The cross-cutting relationship of the NE-SW, N-S and NW-SE structures infers a close association of the intrusions and mineralization, which was validated by ground truthing. The residual susceptibility values of 1 to 10nT and ≥ 10nT were inferred as shale and intrusive rocks respectively. The implication of this study denotes that missing appropriate structural elements delineation could lead to abortive mines target.
QUANTIFYING RIVERBANK EROSION AND ASSOCIATED LAND COVER CHANGES ACROSS THE COASTAL UPAZILA OF HIZLA, BANGLADESH: AN INTEGRATED APPROACH USING GIS AND MACHINE LEARNING
Authors: Laboni Mst , Ashikur Rahman Shaikh , Khan Sony Sonia , Risalat Rafiq Muhammad
Published: January 2024

Riverbank migration is a common phenomenon in the floodplains of Bangladesh. The continuous changes in river morphology affect its surrounding land-use patterns which pose threats to the life and property of people living near the rivers. The present study utilized thirty-one (1989-2020) years of satellite data to track the erosion-accretion and its influence on land-use and land-cover (LULC) change of Hizla Upazila using GIS-based Modified Normalized Difference Water Index (MNDWI) and Google Earth Engine (GEE) respectively. Statistical analysis revealed the average erosion rate (5.03 km2) is lower than accretion (5.72 km2), resulting in a net land gain of 24.93 Km2. The spatial distribution of erosional activity suggests that the central and western parts of Hizla Upazila are mostly affected, compared to the eastern part, where new deltas are forming. This phenomenon is attributed to the westward movement of the Lower Meghna River (LMR), making the central and western parts of Hizla more vulnerable. The pattern of land-use change manifests that nearby settlements and vegetation are primarily at risk due to channel migration. A significant decrease in total water area (2.1%) and an increase in bare land area (5.1%) between 1997-2010 indicates substantial deposition. Concurrently, there was a decrease in the total settlement (1.53 km2) and vegetation area (9.8 Km2), indicating natural hazards like floods and high-intensity rainfall. The overall kappa accuracy for LULC is over 85% demonstrating its suitability for forecasting. The outcomes of this study will aid the local community, policymakers, and researchers in mitigating risk and ensuring sustainability.
"First find your peasant ..."
Authors: Vale Brenda , Shaw Yvonne
Published: January 2024

Within the context of Edwardian architecture, this paper concerns the interior of dwellings in the 1900s and in particular the furnishings and objects inspired by the Arts and Crafts movement that people might have chosen to have in their homes. The Arts and Crafts section of the 1906 International Exhibition in Christchurch included work by the Haslemere Peasant Arts Society and Haslemere Peasant Industries from England. This paper explores how this movement began, and speculates why its works were part of an exhibition that included works by well-known Arts and Crafts protagonists, such as Morris, Ashbee and Voysey. It looks at the figures involved in the Haslemere ventures, including Godfrey Blount, and the response in the New Zealand press to his ideas that at least 90% of workers should want less rather than more wages, and as a result be involved in working on the land (Blount "Religion and Riches" pp 91-93). The paper also speculates about the life of the peasant and the romanticised view taken of peasants by proponents of the Arts and Crafts movement. It also discusses whether the Arts and Crafts would have flourished, both in New Zealand and Britain, without societies with a middle-class wealthy enough to adorn their homes with its artefacts, or indeed wealthy enough to bankroll it.
Knowledge Level of Alzheimer’s Disease among Adults Attending Primary Healthcare Centers in the Kingdom of Bahrain
Authors: Alammadi Fajer , Almosawi Zahra , Alabbasi Nusaiba , Janahi Maryam
Published: January 2024

Background: With the increasing number of older population in Bahrain, multiple neurodegenerative diseases are arising, including Alzheimer’s disease (AD). Complications related to AD progression and morbidities have introduced new challenges to the patient and the caregiver. Objective: The aim of this study was to assess the knowledge of AD among adults. Methods: A cross-sectional study was conducted in primary care centers using two tools randomly distributed to adults attending the centers. The two tools used were a questionnaire measuring AD awareness and a validated Alzheimer’s disease Knowledge Scale (ADKS), which measures knowledge across seven categories. Results: A total of 620 respondents were included in the study. Most were Bahraini (88.9%) middleaged adults (25-39 years). Only 13.2 % of the participants had a family history of a relative with AD. Of the 620 participants, 431 scored more than 50%. The mean of the overall knowledge score was 57.6%, with a standard deviation of 11.8. The results showed that females were significantly more knowledgeable about AD, with a p-value of 0.04. Conclusion: Our study results identified gaps in knowledge about Alzheimer's disease. Advocacy for health promotion is necessary to raise awareness about the disease. Keywords: Alzheimer’s disease, Dementia, Knowledge, Primary Healthcare, Bahrain
The Impact of Covid-19 Pandemic on the Education and Wellbeing of the Residents in the Family Practice Residency Program in the Ministry of Health in Bahrain
Authors: Altamimi Maryam , Alghaiss Zainab , Alawi Maryam
Published: January 2024

Background: The global spread of SARS-CoV-2 profoundly affected physicians, especially the trainees in residency programs, in terms of psychological, social well-being, and educational aspects. However, the extent of its impact and how it compromises their quality of life and care has not been established well. Objectives: The aim of our study is to assess the impact of SARS-CoV-2 on psychological, social wellbeing and education among the trainees in residency training programs in the Ministry of Health in the Kingdom of Bahrain. Methods: A cross-sectional study was conducted on 89 trainee residents in February 2022 using the perceived stress questionnaire distributed over social media platforms to be answered online. The questionnaire was composed of 4 parts: demographics, the impact of the COVID-19 virus on psychological well-being, training, and education. A p-value cut-off point of <0.05 at a 95% Confidence Interval (CI) was used to determine statistical significance. Result: Of the 89 questionnaires distributed, 85 trainees responded (95.5%). Residents who covered COVID-19 centers for more than four months had a higher impact on their training than those who covered less than two months. Female trainees were more affected than males. However, there was no significant difference among genders regarding the level of stress and psychological well-being. Conclusion: The adoption of new strategies in the training department for the trainees is recommended to decrease the adverse psychological effects and to prevent any compromise in the training in future pandemics. Keywords: COVID-19, SARS-CoV-2, Pandemic, Trainees, Family Practice, Psychological wellbeing, Residency
Commonality in Tail Risk Premia around the World
Authors: Lee Kuan-Hui , Wang Shu-Feng
Published: January 2024

This study examines tail risk premia for 44 countries from 1990 to 2015 and provides evidence on the existence of common and systematic components in the variation of tail risk premia across countries. Specifically, we found that individual countries’ tail risk premia significantly comove with U.S., regional, and global tail risk premia. The first five principal components explain all variation in the premia, with the first principal component alone explaining over 30% of the variation. The comovement, or commonality, is stronger for developed market countries and more open countries. We also provide evidence that premia are affected by the U.S. economic environment and global stock market volatility, leading to a common variation in tail risk premia around the world.