bluuebunny/crossref_metadata_2025 huggingface dataset:
Rozkład ciśnienia w ośrodku porowatym podczas zjawiska kolmatacji przebiegającego zgodnie z pierwszą kinetyką bez linearyzacji wyrażenia określającego porowatość rozważanego ośrodka w funkcji położenia i czasu
Authors: FILIPEK Wiktor , BRODA Krzysztof
Published: December 2023

Zjawisko kolmatacji występuje w przyrodzie wszędzie tam, gdzie dochodzi w ośrodkach porowatych do przepływów cieczy niosącychzawieszone cząstki stałe. Nawet „najczystsza” woda dopływająca do studni po pewnym czasie spowoduje jej zakolmatowanie, a tymsamym spadek jej wydajności, co jest zjawiskiem negatywnym.Badania prowadzone w naszym ośrodku od lat 60-tych ubiegłego wieku [1,4-14] doprowadziły do opracowania matematycznegoopisu zjawiska kolmatacji [4-8,13,14] oraz przeprowadzenia szeregu eksperymentów ją weryfikujących [9-14]. Uzyskane wynikiwykorzystano również podczas prób uszczelnienia górotworu wokół wyrobiska górniczego [12].W niniejszym artykule podjęto próbę określenia obszaru К w przypadku przebiegu zjawiska kolmatacji zachodzącego zgodniez kinetyką pierwszą, oraz podania zależności opisujących rozkład ciśnienia h(x,t) dla przepływu bez kolmatacji i z kolmatacją bezlinearyzacji wyrażenia ε(x,t)-3 w otoczeniu εo gdzie ε określa porowatość ośrodka w funkcji położenia i czasu.Określenie obszaru К pozwala nam na jednoznaczne wyprowadzenie dokładnego rozkładu ciśnienia h(x,t) podczas przepływuz kolmatacją przez ośrodek porowaty bez linearyzacji, a następnie porównania rozwiązań układu równań kolmatacji metodąlinearyzacji i metodą dokładną przy wykorzystaniu bezwymiarowej postaci funkcji ξ.W trakcie prowadzenia badań eksperymentalnych próba dopasowania rzeczywistego zjawiska do opracowanego modelumatematycznego obarczona była dużą niepewnością wynikającą prawdopodobnie z zastosowania linearyzacji członu ε(x,t)-3.W artykule autorzy wyjaśniają co generuje odstępstwo metody przybliżonej od dokładnego rozwiązania oraz zwracają uwagę, żedokładne rozwiązanie bardziej oddaje sens fizyczny matematycznego modelu opisu zjawiska oraz zdefiniowanych współczynnikówkolmatacji a w szczególności parametru αo.
Some Remarks on Asʿad al-Yānyawī’s Translation of Physics
Authors: Baga Mehmet Sami
Published: December 2023

Osmanlı düşünce tarihinin gerek İslam düşüncesiyle olan organik sürekliliği gerekse de Batı dünyasında ortaya çıkan “yeni” düşünce akımlarıyla ilişkisi henüz sağlam bir zeminde ele alınıp incelenememiştir. Özellikle Batıda meydana
gelen gelişmelerle Osmanlı âliminin kurduğu ya da kuramadığı irtibat çeşitli ön yargılı ve yüzeysel değerlendirmelerle ele alınmaktadır. Bu hususun anlamlı bir zeminde tartışılmasına katkı sağlayacak kritik noktalardan biri de
Lale Devrinde kurulan tercüme heyetinin bir üyesi olarak Yanyalı Esad Efendi’nin Ioannis Kuttinius’un Aristoteles’in Fizika’sını kısmen şerh ve kısmen de özetlediği eserini et-Taʿlîmü’s̱-s̱âlis̱ adıyla Arapçaya tercüme ve şerh
etmesidir. Bu çalışmada, Batıda yeni fizik anlayışının yaygınlaşmaya başladığı düşünülen bir dönemde çevirmek için neden Aristoteles fiziğine dair bu eserin seçildiği, çevirinin salt bir aktarımdan öte yeni bir yorum içerip içermediği
gibi hususlar çerçevesinde, eserin İbn Rüşdcü yorumları öne çıkaran bazı tespitler paylaşılacaktır. Modern literatürdeki bazı okumaların eleştirisini de içeren bu tespitler, büyük oranda eserin mukaddimesi üzerinden yapılacaktır.
The Behaviors of the Stocks of the Five Top-Grossing Pharmaceutical Companies Traded in the World Stock Exchanges in the Covid-19 Pandemic
Authors: TURAN Günay , Yavuzarslan Kıymet
Published: December 2023

Yeni tip koronavirüsün (COVID-19), II.Dünya Savaşından bu yana insanlık tarihinin karşılaştığı en büyük küresel sağlık felaketi olduğu düşünülmektedir. Virüs, 2019 yılı Aralık ayının sonunda Çin’in, Hubei eyaletinin Vuhan şehrinde
ortaya çıktıktan kısa bir süre sonra tüm dünyaya bulaşmıştır. Virüs, gündelik hayatın seyrini etkilemiş ve sosyo-kültürel pek çok alandaki faaliyetler belirli bir süre durdurulmuştur. Dünya Sağlık Örgütü tarafından pandemi sürecinin
ilan edilmesiyle birlikte finansal piyasalar yara almış, en güçlü ülkelerin ekonomileri zayıflamış, uluslararası ticarette kayıplar yaşanmıştır. Bu kısa zaman diliminde, uluslararası borsalarda ciddi düşüşler yaşanmış, şirketlerin
hisse senedi fiyatları düşmüş, dalgalanan borsa, sadece şirketleri ve yatırımcıları sarsmakla kalmamış, aynı zamanda tüketici üzerinde de geleceğe ilişkin kaygılar yaratmıştır. Dünya genelinde ekonomik anlamda meydana gelen bu
olumsuz etkilerin ne kadar süreceği ise belirsizliğini korumaktadır. Tüm dünyayı etkisi altına alan virüsün hızla yayılması endişeleri daha da artırmış, COVID-19’dan korunmada en etkili yöntem olan antikor üretimi için “aşı” çalışmalarının
ivme kazanmasına neden olmuştur. İlk COVID-19 aşısının bulunduğuna ilişkin haberler 2019-2020 yılları arası dönemlerde dalgalı olan piyasa hissiyatında güçlü bir etki yaratmış, borsa endekslerinde ciddi oynaklığa sebep olmuştur.
Bu çalışmada; COVID-19 salgının ortaya çıkması ile dünya borsaları üzerindeki etkilerinin belirlenmesi ve aşısının bulunma sürecinde ulusal kanallarda yayınlanan aşı haberlerinin (breaking news,) ilaç şirketlerinin hisse performanslarına
etkisi değerlendirilmiştir. Çalışmada; COVID-19 salgını ile ilgili yayınlanan haberlerden sonra ortaya çıkan belirsizlik ve risklerin Dünya Borsalarını olumsuz etkilemesi ve piyasada sebep olduğu oynaklığın ilaç firmalarının hisse
senetleri performansına yansıması incelenmiştir. Sonuç olarak; Dünya borsalarında en çok gelir getiren belirli ilaç firmalarının COVID-19 ile ilgili yaptıkları aşı ve ilaç çalışmaları haberleri sonrası, hisse performansları grafikler
yardımıyla değerlendirildiğinde; olumlu gelişmelerin ilaç sektörü hisse senetlerini değerlendirdiği, olumsuz haberlerin ise hisse senedi performansını olumsuz yönde etkilediği ortaya çıkmıştır.
Ways For Food Products Market Development: In Case Of Uzbekistan
Authors: Yusupov Makhamadamin
Published: December 2023

In this paper has been discussed the theoretical and methodological foundations of food security, systematizes the tasks of a state with a socially oriented economy to maintain a given level of food security; directions for solving
the food problem are proposed.
The effect of halal labels on muslim consumer decisions in buying cough medicine
Authors: Shabrina Nadhilah Nur , Ali Khalifah Muhammad , Mahanani Yekti
Published: December 2023

As a country with a majority Muslim population, Indonesia requires halal certification for all products that enter, distribute, and trade in Indonesia's territory, including medicines with several halal critical points. This study aims to identify Muslim consumers' characteristics and analyze the factors that influence Muslim consumers' decision to purchase cough medicine in DKI Jakarta. This research was conducted in DKI Jakarta with a total sample of 100 respondents. The methods used are descriptive analysis and Structural Equation Modeling Partial Least Square (SEM-PLS). This study found that the decision of DKI Jakarta Muslim consumers to buy cough medicine was significantly affected by halal labels, personal factors, and product quality. However, the influence of social and psychological factors had an insignificant effect on Muslim consumers' decision to buy cough medicine.
Halal enzymatic cosmetic ingredients: the role of enzymes in ingredients selection
Authors: Dwicesaria Maheswari Alfira , Safithri Mega , Andrianto Dimas , Purwanto Ukhradiya Magharaniq Safira
Published: December 2023

The large Muslim population in the world lead to an increasing demand for halal products. One of the halal products that is still difficult to determine is cosmetic products. The cosmetics industry is still dominated by non-halal products. One of the active ingredients that is currently popular is the use of enzymes. Many enzymes that isolated from living organisms come from pigs or halal animals that are not slaughtered according to the Islamic law. Ensuring that enzymes used in cosmetics are derived from halal sources is mandatory for achieving halal certification. Cosmetic enzymes generated from microorganisms through fermentation can be considered halal if the raw materials and growth medium are halal-compliant. Compliance with regional and international standards, such as the Indonesian Ulema Council's Fatwa and the Malaysian Cosmetic and Personal Care Standard, is crucial for halal cosmetics. This article aims to provide a comprehensive review of the role of enzymes in the selection of Halal-compliant cosmetic ingredients. The source of the enzymes employed is one approach to assess the halalness of cosmetic products. The utilization of halal enzymes is necessary to give Muslims assurance while using a cosmetic product. Enzymes that are considered halal are enzymes that sourced from plants.
How Profitability Moderates the Impact of Enterprise Risk Management, Intellectual Capital, and Sustainability Reporting on Firm Value?
Authors: Suratman Sasa Saefulrohman , Ridwan Mochammad , Alghifari Erik Syawal , Handoyo Ilham Adi
Published: December 2023

This research tries to test the influence of enterprise risk management, intellectual capital, and sustainability reports on firm value, with a moderating effect on profitability. Data from 16 food and beverage sub-sector companies listed on the IDX has been taken from 2021 to 2022 and analysed using a panel data regression approach and model robustness testing using the robust least squares analysis method. The research results show the positive effect of enterprise risk management and intellectual capital on firm value, as well as the negative effect of sustainability reports on firm value. The moderation results show that the interaction of profitability weakens the positive effect of enterprise risk management and intellectual capital on firm value. The results also reveal that profitability strengthens the negative influence of sustainability reports on firm value. This paper discusses the implications of this research for existing literature, practitioners, and policymakers.
Conveying The Negative Health Consequences of Smoking For The Development of School-Based Social Marketing Programs: An Experimental Study
Authors: Fitrianto Mohammad Eko , Dharmmesta Basu Swastha , Purwanto Bernardinus Maria
Published: December 2023

Cigarette products certainly have a negative impact on health, especially for teenagers. Although there is a growing body of literature on the positive social influence of peers as a preventative measure, it is unclear how they react when convinced of the truth of its negative impact on health. This experimental study aims to examine the impact of negative health consequences on adolescents' emotions and behavior. Through an online invitation and randomization process, 78 high school students from South Sumatra Province, Indonesia were eligible to participate in the online experimental study. We compared two groups (experimental vs. control) to examine the impact of negative health consequences on their emotions (empathy) and behavior (prosocial behavior). Our findings show that, as compared to adolescents in the non-convincing health message condition (n=40), adolescents in the convincing negative health message condition (n=38) had higher empathy (sign=0.005) and prosocial behavior (sign=0.028) to assist their smoking peers. Our findings provide a valuable information to sustainability development in the future through reducing underage smokers. We suggest that the use of convincing method to develop a school-based social marketing program for handling adolescent smoking problem
Imaginação, atividades criadoras e escrita
Authors: Branco Costa Antunes de Oliveira Maria Carolina , Nunes Henrique Silva Daniele
Published: December 2023

O artigo apresenta uma revisão sistemática da literatura acerca da temática da imaginação e das atividades criadoras da criança com foco nos processos iniciais de elaboração da escrita, ancorando-se em estudos da Psicologia Histórico-Cultural. Foram considerados artigos, teses e dissertações elaborados entre 2012 e 2022, encontrados em: Banco de Teses e Dissertações da CAPES, Periódicos Eletrônicos em Psicologia (PePSIC) e Scientific Eletronic Library Online (SciELO). A revisão se justificou pela necessidade de analisar a produção científica recente na perspectiva teórico-metodológica em questão, de problematizá-la e de inserir o leitor na rede argumentativa que coloca em perspectiva temas caros à Educação e à Psicologia: desenvolvimento, imaginação e escrita. A busca foi organizada em quatro estágios: i) Identificação (leitura de títulos); ii) Triagem (leitura de resumos); iii) Elegibilidade (leitura dos trabalhos completos) e iv) Inclusão. Os resultados apontaram para o baixo índice de produções bibliográficas que abordam a temática que, embora tenha ganhado maior expressão nos últimos anos, ainda permanecem nucleadas, com discussão conceitual tímida quando considerada a importância do debate. Na conclusão dos dados, pode-se observar que a grande maioria dos estudos não discute a apropriação da escrita como um modo de elaboração criadora, articulada à imaginação, aos processos de simbolização e ao desenvolvimento cultural na infância. Essa lacuna traz implicações para o campo de investigação sobre a alfabetização e restringe uma compreensão mais aprofundada sobre o que é ler e escrever, o que por sua vez, impacta na formulação adequada das políticas públicas voltadas para esse fim.
Currículo e alfabetização
Authors: Bortot Camila Maria , Souza Kellcia Rezende
Published: December 2023

O presente artigo tem por objetivo analisar as contradições inerentes às mudanças curriculares recentes para a alfabetização brasileira em tempos neoconservadores. Metodologicamente, a pesquisa constitui-se bibliográfica e documental na medida em que se busca a compreensão da produção do conhecimento científico acerca de determinados recortes da realidade investigada. Tem por fontes documentos nacionais que organizaram o currículo para a alfabetização nos últimos anos, tomando como documentos principais: as Diretrizes Curriculares Nacionais da Educação Básica (BRASIL, 2013), a Base Nacional Comum Curricular (BNCC) (BRASIL, 2017) e a Política Nacional de Alfabetização (PNA) (BRASIL, 2019). A partir de um exame histórico-contextual, demonstramos que as tendências da legislação atual materializam o controle acirrado sobre os currículos, à falta de autonomia dos docentes, à padronização e homogeneização do trabalho pedagógico e o reducionismo da alfabetização ao método fônico de uma política pautada em evidências científicas. Essas evidências, por sua vez, são pautadas na neurociência, que desconsidera o conhecimento produzido historicamente em diferentes facetas, em prol da homogeneização de um ensino mecânico e padronizado. Esses elementos rompem, de forma intencional, com políticas anteriores que consideravam a pluralidade escolar, a autonomia docente e a multiplicidade teórico-metodológica.
Pedagogia diferenciada como instrumento político-pedagógico da inclusão
Authors: E Lopes de Lima Pedro Lucas Costa
Published: December 2023

É necessário a compreensão de uma nova forma de organização escolar, que propicie o trabalho pedagógico personalizado, inclusivo e em consonância com a realidade heterogênea presente em todos os grupos sociais. Através do Programa educacional individualizado existe uma mudança de paradigma na mediação escolar, no planejamento docente, na avaliação do aprendizado e no processo didático, tais revoluções são benéficas para todos os estudantes, independentemente de suas condições funcionais típicas ou atípicas. O modelo de atendimento educacional quebra o paradigma medicamentoso da educação especial e imprime uma identidade educativa que corrobora com os processos escolares. Espera-se, assim, a partir desse estudo teórico contribuir para uma reflexão sobre as práticas dos professores e equacionar caminhos para a sua eventual mudança.
Trajetórias históricas da educação no Piauí
Authors: Costa dos Santos José Marcelo , Do Amparo Borges Ferro Maria
Published: December 2023

O presente texto apresenta algumas das trajetórias históricas da educação piauiense, no sentido de mostrar aspectos  relativos aos processos e movimentos socais e políticos que marcaram a construção do sistema educacional no estado em questão, do século XVIII ao século XX. O objetivo geral é analisar trajetórias históricas da educação no Piauí, mediante apanhados bibliográficos. Especificamente, buscamos: apresentar aspectos históricos da educação brasileira, com foco no contexto piauiense; discorrer sobre movimentos e políticas de implantação do sistema educacional no Piauí; caracterizar os principais momentos históricos da educação nesse estado. Trata-se de uma pesquisa de abordagem qualitativa, desenvolvida por meio de estudo teórico, do tipo bibliográfico, com base em consultas às obras de autores como: Brito (1996), Ferro (1996), Sousa Neto (2013), Villela (2008; 2000), dentre outros. O estudo mostrou que a questão da educação escolar no Piauí ocorreu a passos lentos e se processou a partir de dilemas, controvérsias e paradoxos entre o instituído e o executado, sendo marcada pela escassez de professores e falta de estrutura nas escolas, além de ineficazes tentativas de implantação da instrução escolar, tornando-se uma questão entre séculos.
Educação e rap no Brasil
Authors: Siqueira de Barros João Matheus , Luiz Tavares Breitner
Published: December 2023

A temática educacional é pesquisada de múltiplas formas em território internacional e nacional. Entretanto, com um viés interdisciplinar, o presente trabalho buscou analisar as produções acadêmicas brasileiras que correlacionam a música, em específico o rap, com o ensino, a fim de dar início à pesquisa de dissertação que pretende trabalhar o ensino de história utilizando-se do rap como ferramenta de ensino. A metodologia utilizada para mapear as produções foi de revisão sistemática, a partir do mapeamento na base de dados “Scopus”. Com isso, observaram-se aspectos comuns e específicos nos trabalhos, o uso de músicas antigas, consideradas clássicos do rap, além da necessidade de uma historicização mais abrangente sobre esse gênero musical. Por fim, concluiu-se, através do resultado de trabalhos empíricos, que o rap pode ser uma importante ferramenta no processo de ensino-aprendizagem.
Exploring Mr. Keating’s Teaching Style on Students’ Interest in Dead Poets.Society.Film
Authors: Zhafran Muhammad Naufal Razan , Fitriana Eka , Saputra Agus
Published: December 2023

It is important for teachers to employ an effective teaching style that can inspire and motivate the students to learn more in the class. As Saswandi (2014) said learning may occur effectively if it is motivated by a strong interest and a strong interest can be developed by the teacher's style of instruction. Nowadays, a teacher can use films containing educational information and values as a reference to develop their teaching styles, such as the Dead Poet Society film. Therefore, to help teachers identify an effective teaching style, this study analyzed Mr. Keating's teaching style which left a good impact on the students’ interests portrayed in Dead Poets Society film directed by Peter Weir. This study was a descriptive qualitative study and the primary data were gathered from the dialogues and scripts of the Dead Poet Society. For collecting the data, note-taking was utilized. The analysis and findings revealed that there were five types of teaching styles identified from the film; expert teaching style, personal model teaching style facilitator teaching style, and delegator teaching style. Whereas these teaching styles affected the students’ individual interests, situational interests, and topic interests.
Enhancing Pronunciation, Grammar & Fluency (PGF) Proficiency Despite Pandemic (EPP) through Flexy Supplementary Teaching and Learning Development Sheets
Authors: Baesa-Alfelor Xenia S. , Ocampo Darrel M.
Published: December 2023

This study determined the effectiveness of the innovations, interventions and strategies through Flexy Supplementary PGF Teaching and Learning Development Sheets in times of pandemic along with pronunciation, grammar and fluency. The subjects were 30 STEM students experimentally studied using validated written-administered language proficiency test, backed up by virtual meet-ups and observation.  Statistical treatment used were weighted mean and Pearson-R. Findings revealed that the students’ language proficiency before the interventions conducted did not meet the expectations with 72.67%, Beginning Proficiency Level. Along pronunciation, 36.67% were Developing Proficiency and (100%) were both beginners in both grammar, and in fluency (66.67%).  After the interventions conducted, the students’ language proficiency level along pronunciation, grammar and fluency is 87.40 or approaching proficiency level

Statistics showed that the r- value of 0.8658 squared to 0.75 means strong effect of the implemented interventions, innovations, and strategies in enhancing the language proficiency of students. It further implies that the flexy supplementary development kit is effective program to students in times of massive impact of Covid-19 pandemic through online and offline platforms and teachers’ flexy mode in the delivery of the language programs in STEM track.
The Use of Local Language Constraint-Based in the Pronunciation of Standard English: A Study at Sasaknese Learners of West Nusa Tenggara
Authors: Arafiq  , Ahmadi Nur , Aziz Atri Dewi , Munandar La Ode Alfin Haris
Published: December 2023

This study aims to determine the effect of a pronunciation learning model based on phonological constraints of regional languages ​​in pronouncing standard English for Sasak speaking students in West Nusa Tenggara. This research is a quantitative-descriptive designs with an experimental method. The object of this research is the sound of the English language produced by students of Sasak speakers at the English Study Program, FKIP University of Mataram. The research data was obtained using tests (pre-test and post-test). This study used a sample of 15 students who are native Sasak speakers. The instrument used is a pronunciation test which is given before (pretest) and after (posttest) learning is carried out. The test results are then analyzed using simple statistics that can be used to explain the changes before learning and after learning. The results of the analysis are then explained formally by using symbols and pictures and informally by using narration so that the findings of this study can be understood as well as possible. The results of this study indicate that learning pronunciation based on local language phonological constraints is effective in increasing students' awareness in anticipating the influence of local language sounds (mother tongue) in producing English.
Pengaruh Marketing Mix terhadap Keputusan Pembelian pada Konsumen Maju Jaya Parfume di Sumatera Utara
Authors: Putra Musdiansyah , Nasution Yenni Samri Juliati , Aslami Nuri
Published: December 2023

The aim of this research is to assess the impact of various marketing elements, such as product, price, location, promotion, employees, processes, and physical evidence, on consumer purchasing decisions in Parfum Maju Jaya. The research method employed is quantitative, generating numerical data processed using the SPSS software. The study population encompasses all consumers of Parfum Maju Jaya, totaling 2,340 per year, with a sample size of 99 respondents. Sampling is conducted through saturated sampling using purposive sampling, with inclusion criteria specifying consumers aged 17 and above who have made at least one purchase from Maju Jaya Parfume. The research findings indicate a positive and significant influence of the product, price, location, promotion, employees, processes, and physical evidence variables on consumer purchasing decisions in Maju Jaya Parfume. Based on statistical tests, the calculated F-value is 34.747, surpassing the tabulated F-value of 2.10, with a significance level of 0.000 (less than 0.05). Therefore, it can be concluded that this model effectively explains the influence of independent variables on the dependent variable.
Analisis Likuiditas dan Profitabilitas untuk Meningkatkan Kinerja pada Bumdes di Kecamatan Gending Probolinggo
Authors: Karimah Luklukatul , Zulkifli Makhmud
Published: December 2023

The Village-Owned Enterprises (BUMDes) emerge as a crucial solution in supporting economic growth at the village level. Key factors such as liquidity and profitability play a significant role in enhancing the performance of BUMDes. This research employs the method of liquidity ratio analysis, particularly the Current Ratio, to evaluate BUMDes' ability to meet short-term obligations. Profitability analysis focuses on gross profit ratio, net profit ratio, and margin to measure operational efficiency and profitability of BUMDes. Data from the financial reports of BUMDes over four periods were analyzed using a quantitative descriptive method, involving primary data from the researcher's observations and secondary data from relevant literature. The research findings reveal several points. Firstly, BUMDes "KDS Jaya" in Pesisir Village and BUMDes "Jaya Makmur" in Sumberkerang Village experienced fluctuations in the Current Ratio, indicating unstable liquidity performance. Secondly, BUMDes "Unggul Jaya" in Sebaung Village, BUMDes "Sumber Rejeki Pemuda" in Brumbungan Lor Village, and BUMDes "Sumber Rejeki" in Klaseman Village showed an increase in the Current Ratio, signifying good liquidity conditions. Return of Equity analysis indicates that BUMDes "KDS Jaya," "Sumber Rejeki Pemuda," and "Sumber Rejeki" experienced a decline over two periods, indicating less efficient performance. BUMDes "Jaya Makmur" experienced a decline for one period and an increase for two periods, while BUMDes "Unggul Jaya" experienced a decline over two periods and an increase for one period, indicating a relatively good level of efficiency. Recommendations to enhance support programs include the implementation of effective strategies, strengthening financial management, continuous education and training for business actors, and a focus on product innovation and marketing strategies to remain competitive in the dynamic market.
Analisis SWOT dalam Menentukan Strategi Pemasaran pada UMKM Bakso Lava Ummu Akbar Tanjung Morawa
Authors: Utami Annisa Dwi , Nawawi Zuhrinal M , Syarbaini Ahmad Muhaisin B.
Published: December 2023

One business sector that requires a profound understanding of market preferences is the culinary industry. However, its sustainability necessitates strategic planning to outperform competition in product marketing. The development of such strategies can be realized by comprehending the company's situation through four key factors: Strengths, Weaknesses, Opportunities, and Threats, commonly known as SWOT analysis. This research aims to identify various strengths, weaknesses, opportunities, and threats, determining optimal strategies for the company's future. The applied research method is qualitative with a descriptive approach, utilizing IFE matrix analysis, EFE matrix analysis, and SWOT matrix diagrams. Questionnaires were distributed to 36 respondents, comprising Bakso Lava Ummu Akbar employees. Based on IFE and EFE matrix analyses, total scores were obtained, with 2.7 for Strengths, 0.95 for Weaknesses, 2.4 for Opportunities, and 1.49 for Threats. The SWOT matrix diagram mapping indicates Bakso Lava Ummu Akbar residing in Quadrant I, with a positive score difference (1.75; 0.91). Therefore, it can be concluded that Bakso Lava Ummu Akbar is advised to implement a Strengths-Opportunities strategy to achieve company objectives swiftly and accurately.
Hipoparatiroid: Deteksi Awal dan Cara Penegakan Diagnosis
Authors: Shafa Rizqina Alya , Anjani Dewa Ayu Vania Novista , Wibisana I Komang Gede Andhika , Rahmadini Nasyada Fadhila , Anggraini Pratiwi , Akhyar Raditya Bayu Farizil , Apriyani Reny , Atari Sicillia Putri , Susani Yoga Pamungkas
Published: December 2023

Hypoparathyroidism is an endocrine disorder characterized by low or even absent production of parathyroid hormone (PTH). The most common cause of hypoparathyroidism is injury to the parathyroid gland or accidental removal during thyroid surgery. The diagnosis of hypoparathyroidism is made by assessing clinical symptoms, physical examination and laboratory tests. The author wants to know more about how to detect early and diagnose hypoparathyroidism. Hypoparathyroidism is an endocrine disorder characterized by low or absent production of parathyroid hormone (PTH). The most common cause of hypoparathyroidism is injury to the parathyroid glands or unintentional removal during thyroid surgery. The diagnosis of hypoparathyroidism is established through the assessment of clinical symptoms, physical examination, and laboratory tests. The author aims to explore further the early detection and diagnostic approaches for hypoparathyroidism.
Potensi Cemaran Kandungan Minyak Lemak (Oil and Grease) Limbah Cair PT. Perikanan Sejahtera dan PT. Tuban Kretek Maju Di Kabupaten Tuban, Jawa Timur
Authors: Farid Akhmad , Aprillina Eka Nadia
Published: December 2023

Wastewater from the result of industrial activities such as PT. Perikanan Sejahtera dan PT. Tuban Kretek Maju, with the characteristics of the numbr pf supporting and main parameters that still meet the waste water quality standards. Waste water is processed and treated fisrt before being discharged directly into receiving water bodies so that ut does not have an adverse impact on the aquatic environment. Sampling test samples of wastewater were taken directly from the IPAL outlets of each PT. This study aims to determine the potential for water pollution drom oil and grease content at two PT. different. The research method is observation and active participation method. Determination of potential quality of domestic wastewater in accordance with the Regulation of the Minister of Enviromental of the Republic of Indonesia No. 5 of 2014. The pH value is determined based on (SNI 6989.11:2019), the temperature value is determined based on (06-6989.23:2005) and the fatty oil value is determined by the gravimetry method according to (SNI 6989.10:2011). The results the research on the pH value of the samples of PT. Perikanan Sejahtera dan PT. Tuban Kretek Maju is 7,80 and 7,67, the temperature value is 31,0 and 32,6. Meanwhile, the values for oil and fat content were 1.850 mg/L and 1.800 mg/LOil and fat figures are not too significant, showing too much difference in the test samples. Waste water from each PT. does not have a large potential to cause pollution of the water environment in the parameters of oil and grease.
Potensi Ekstrak Spirulina sp. Sebagai Imunostimulan Pada Bidang Akuakultur
Authors: Muahiddah Nuri , Affandi Rangga Idris
Published: December 2023

Aquaculture is an important industry that plays a role in meeting the world's animal protein needs. One of the main challenges in aquaculture is maintaining the health of cultivated aquatic organisms. Spirulina, a type of nutrient-rich blue-green microalgae, has garnered attention as a natural immunostimulant capable of enhancing the immune system of aquatic organisms. This article explains the immunostimulant properties of spirulina, including the bioactive compounds it contains, such as polysaccharides, proteins, photosynthetic pigments, and lipopolysaccharides. These compounds can boost the production of immune cells and phagocytic activity, which can help aquatic organisms combat pathogens. Furthermore, the article discusses the potential benefits of using spirulina extract in aquaculture, including increased resistance to diseases, faster growth, and improved nutritional quality of aquatic organisms. However, there are also challenges to address, such as determining the appropriate dosage and optimal application methods. This article contributes to the understanding of how spirulina extract can be utilized to enhance the health and productivity of aquatic organisms in aquaculture. With further research and the development of improved application methods, the potential of spirulina extract as an immunostimulant in aquaculture can be more fully realized, helping to meet the increasing global demand for protein.
Understanding Enabling Factors for Community-Led Coral Reef Health Monitoring and Early Warning System through Participatory Action Research
Authors: Hidayati Eni , Himawan Mahardika Rizqi , Jefri Edwin
Published: December 2023

Coral reefs are under pressure from climate change and various factors, putting them at risk of a decline in resilience. This heightened vulnerability increases the likelihood of reaching a tipping point with the next shock or stressor. Identifying early warning indicators for tipping points is crucial for proactive coral reef management. Therefore, this study aims to comprehend the coral reef health parameters considered important and feasible for collection by local stakeholders, as well as identify factors facilitating the implementation of a community-based monitoring and early warning system in a fishers-dominated community. The approach used was Participatory Action Research. The results reveal twelve priority parameters deemed necessary by the local community and feasible for collection by local stakeholders, including the local community, university, and non-governmental organization. The identified parameters are: coral bleaching, visibility, temperature, pH, dissolved oxygen, salinity, current, coral percent cover, fish community, macroalgal canopy cover and composition, benthic composition, and plankton. Interpretive structural model and MICMAC analysis show nine enabling factors supporting the development of a community-led coral reef health monitoring and early warning system. These factors include team motivation, training and team capacity, connection with government, connection with university, facilitation by NGOs, supporting regulations, operational funds, access to equipment, and operation and maintenance of equipment. Team motivation stands out as the most influential factor, with strong driving power and dependence, making it crucial to manage as actions on it will have ripple effects on other factors.
Comparison of the effects of the three methods of massage, selected yoga exercises and massage-yoga combination on the depression in elderly women
Authors: Piri Elham , Ghasemi Behnam , Shafizadeh Ali
Published: December 2023

Introduction: The present study aims to compare the effects of massage, selected yoga exercises and massage-yoga combination methods on symptoms of depression. Materials and Methods: According to the research criteria, 60 available samples were selected and randomly divided into three experimental groups and single control one. The Beck Depression Inventory was completed by the examinees before the intervention, two months after its beginning and one month after ending. Each experimental group received one of the massage interventions, selected yoga exercises and massage-yoga combination for eight weeks, three sessions per week and for a period of 40 minutes per session. The data were analyzed using 4 (group) × 3 (measurement) factorial analysis of variance method (ANOVA) and Bonferroni post hoc test was employed to compare the intragroup differences in the measurement steps and intergroup ones. The significance level of alpha was considered to be 0.05. Results: The results showed that there was a significant difference in the level of depression within the three experimental groups of massage (0.001), yoga (0.00) and combination (0.00). There was also a significant difference between the four groups in the depression variable (0.001). But the combined exercise program of massage and yoga had the most effect in improving the symptoms of depression. Conclusion: The results of this research showed that all three methods of massage intervention, selected yoga exercises and the combination of massage and yoga led to the improvement of depression symptom. However, there was a significant difference between the three approaches and the massage-yoga combinative exercise program was found to have the greatest effect on functioning of people with depression.
Modelling the Dynamics of Multi-strain COVID-19 Transmission
Authors:   Department of Mathematics, University of Jos, Nigeria., Ndam Joel N. , Agba Stephen T. ,   Department of Mathematics and Computer Science, Federal University of Health Sciences, Otukpo, Nigeria
Published: December 2023

It is on record that rolling out COVID-19 vaccines has been one of the fastest for any vaccine production worldwide. Despite this prompt action taken to mitigate the transmission of COVID-19, the disease persists. One of the reasons for the persistence of the disease is that the vaccines do not confer immunity against the infections. Moreover, the virus-causing COVID-19 mutates, rendering the vaccines less effective on the new strains of the disease. This research addresses the multi-strains transmission dynamics and herd immunity threshold of the disease. Local stability analysis of the disease-free steady state reveals that the pandemic can be contained when the basic reproduction number, R 0 is brought below unity. The results of numerical simulations also agree with the theoretical results. The herd immunity thresholds for some of the vaccines against COVID-19 were computed to guide the management of the disease. This model can be applied to any strain of the disease.
Measurable Taylor’s theorem: an elementary proof
Authors:   Bank of Italy, Regional Economic Research, Milan, Italy., Viggiano Gianluca
Published: December 2023

The Taylor expansion is a widely used and powerful tool in all branches of Mathematics, both pure and applied. In Probability and Mathematical Statistics, however, a stronger version of Taylor’s classical theorem is often needed, but only tacitly assumed. In this note, we provide an elementary proof of this measurable Taylor’s theorem, which guarantees that the interpolating point in the Lagrange form of the remainder can be chosen to depend measurably on the independent variable.
On a class of \(p\)-valent functions with negative coefficients defined by opoola differential operator
Authors:   Department of Mathematics , Gombe State University , P.M.B. 127, Gombe , Nigeria., Sambo Bitrus , Opoola Timothy Oloyede ,   Department of Mathematics , University of Ilorin , P.M.B. 1515 , Ilorin , Nigeria.
Published: December 2023

Using Opoola differential operator, we defined a subclass \(S^{n}_{p}(\lambda,\alpha,\gamma,\delta)\ ) of the class of multivalent or \(p\)-valent functions.Several properties of the class were studied, such as coefficient inequalities,Hadamard product, radii of close-to-convex, star-likeness, convexity, extreme points, the integral mean inequalities for the fractional derivatives, and further growth and distortion theorem are given using fractional calculus techniques.
Stabilities of non-standard Euler-Maruyama scheme’s for Vasicek and geometric brownian motion models
Authors:   Département de Mathématiques et Informatique (RDC), Faculté des Sciences, Université de Lubumbashi, Democratic Republic of the Congo., Christopher Badibi O. , I Ramadhani ,   Département de Mathématiques, Informatique et Statistiques(RDC), Faculté des Sciences et Technologies, Université de Kinshasa, Democratic Republic of the Congo., Apollinaire Ndondo M. ,   Département de Mathématiques et Informatique (RDC), Faculté des Sciences, Université de Lubumbashi, Democratic Republic of the Congo., Didier Kumwimba S. Didier ,   Département de Mathématiques et Informatique (RDC), Faculté des Sciences, Université de Lubumbashi, Democratic Republic of the Congo.
Published: December 2023

Stochastic differential equations (SDEs) are a powerful tool for modeling certain random trajectories of diffusion phenomena in the physical, ecological, economic, and management sciences. However, except in some cases, it is generally impossible to find an explicit solution to these equations. In this case, the numerical approach is the only favorable possibility to find an approximative solution. In this paper, we present the mean and mean-square stability of the Non-standard Euler-Maruyama numerical scheme using the Vasicek and geometric Brownian motion models.
Solution of generalized Abel’s integral equation using orthogonal polynomials
Authors:   Department of Mathematics/Statistics/Computer Science, Faculty of Science, Federal University of Agriculture Makurdi, Benue State, Nigeria., John Mamman Ojima , Terhemen Aboiyar ,   Department of Mathematics/Statistics/Computer Science, Faculty of Science, Federal University of Agriculture Makurdi, Benue State, Nigeria., Tertsegha Tivde ,   Department of Mathematics/Statistics/Computer Science, Faculty of Science, Federal University of Agriculture Makurdi, Benue State, Nigeria.
Published: December 2023

This research presents the solution of the generalized version of Abel’s integral equation, which was computed considering the first and second kinds. First, Abel’s integral equation and its generalization were described using fractional calculus, and the properties of Orthogonal polynomials were also described. We then developed a technique of solution for the generalized Abel’s integral equation using infinite series of orthogonal polynomials and utilized the numerical method to approximate the generalized Abel’s integral equation of the first and second kind, respectively. The Riemann-Liouville fractional operator was used in these examples. Our technique was implemented in MAPLE 17 through some illustrative examples. Absolute errors were estimated. In addition, the occurred errors between using orthogonal polynomials for solving Abel’s integral equations of order \(0\ <\ \alpha \ <\ 1\) and the exact solutions show that the orthogonal polynomials used were highly effective, reliable and can be used independently in situations where the exact solution is unknown which the numerical experiments confirmed.
Forecasting the democratic republic of the Congo macroeconomic data with the Bayesian vector autoregressive models
Authors:   Central Bank of Congo, University of Kinshasa, Democratic Republic of the Congo., Mambo Lewis N. K. , Musa Victor G. ,   Central Bank of Congo, University of Kinshasa, Democratic Republic of the Congo., Kalonda Gabriel M. ,   Central Bank of Congo, University of Kinshasa, Democratic Republic of the Congo.
Published: December 2023

The purpose of this paper is to emphasize the role of the Bayesian Vector Autoregressive models (VAR) in macroeconomic analysis and forecasting. To help the policy-makers to do better, the Bayesian VAR models are considered more robust and valuable because they put in the model the mathematician’s beliefs or priors and the data. By using BVAR(1), we get the main results: (i)the best out sample point forecasts; (ii) the exchange rate shock contributes more to inflation; (iii) the inflation shock has high effects on exchange rate innovation. These results are due to the dollarization of this small open economy.
Global asymptotic stability of constant equilibrium point in attraction-repulsion chemotaxis model with logistic source term
Authors:   Department of Mathematics and Computer, College of Education, Alsalam University, Alfula, Sudan, Mohammed Abdelhakam Hassan ,   College of Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, P.R. China., Almurad Ali. B. B. ,   Department of Mathematics and Computer, College of Education, Alsalam University, Alfula, Sudan.
Published: December 2023

This paper deals with nonnegative solutions of the Neumann initial-boundary value problem for an attraction-repulsion chemotaxis model with logistic source term of Equation 1 in bounded convex domains \(\Omega\subset\mathbb{R}^{n},~ n\geq1\), with smooth boundary. It is shown that if the ratio \(\frac{\mu}{\chi \alpha-\xi \gamma}\) is sufficiently large, then the unique nontrivial spatially homogeneous equilibrium given by \((u_{1},u_{2},u_{3})=(1,~\frac{\alpha}{\beta},~\frac{\gamma}{\eta})\) is globally asymptotically stable in the sense that for any choice of suitably regular nonnegative initial data \((u_{10},u_{20},u_{30})\) such that \(u_{10}\not\equiv0\), the above problem possesses uniquely determined global classical solution \((u_{1},u_{2},u_{3})\) with \((u_{1},u_{2},u_{3})|_{t=0}=(u_{10},u_{20},u_{30})\) which satisfies $$\|u_{1}(\cdot,t)-1\|_{L^{\infty}(\Omega)}\rightarrow{0},~~ \|u_{2}(\cdot,t)-\frac{\alpha}{\beta}\|_{L^{\infty}(\Omega)}\rightarrow{0},~~ \|u_{3}(\cdot,t)-\frac{\gamma}{\eta}\|_{L^{\infty}(\Omega)}\rightarrow{0}.$$ \(\mathrm{as}~t\rightarrow{\infty}\).
Identification of parameters in parabolic partial differential equation from final observations using deep learning
Authors:   Laboratoire de Mathématiques Appliquées et Informatique (MAI) Université Cadi Ayyad, Marrakech, Morocco, Atif Khalid , Essouf El-Hassan ,   Laboratoire de Mathématiques Informatique et Sciences de ´lingenieur (MISI) Université Hassan 1, Settat 26000, ´ Morocco, Rizki Khadija ,   Laboratoire de Mathématiques Informatique et Sciences de ´lingenieur (MISI) Université Hassan 1, Settat 26000, ´ Morocco
Published: December 2023

In this work, we propose a deep learning approach for identifying parameters (initial condition, a coefficient in the diffusion term and source function) in parabolic partial differential equations (PDEs) from scattered final observations in space and noisy a priori knowledge. In Particular, we approximate the unknown solution and parameters by four deep neural networks trained to satisfy the differential operator, boundary conditions, a priori knowledge and observations. The proposed algorithm is mesh-free, which is key since meshes become infeasible in higher dimensions due to the number of grid points explosion. Instead of forming a mesh, the neural networks are trained on batches of randomly sampled time and space points. This work is devoted to the identification of several parameters of PDEs at the same time. The classical methods require a total a priori knowledge which is not feasible. While they cannot solve this inverse problem given such partial data, the deep learning method allows them to resolve it using minimal a priori knowledge.
A class of power series based modified newton method with high precision for solving nonlinear models
Authors:   Department of Mathematics, Delta State University of Science and Tech., Ozoro, Delta State, Nigeria, Ogbereyivwe Oghovese , Umar Salisu Shehu ,   Department of Statistics, Federal Polytechnic Auchi, Edo State, Nigeria
Published: December 2023

This manuscript proposed high-precision methods for obtaining solutions for nonlinear models. The method uses the Newton method as its predictor and an iterative function that involves the perturbed Newton method with the quotient of two power series as the corrector function. The theoretical analysis of convergence indicates that the methods class is of convergence order four, requiring three functions evaluation per cycle. The computation performance comparison with some existing methods shows that the developed methods class has perfect precision.
On norms of derivations implemented by self-adjoint operators
Authors:   Department of Mathematics and Actuarial Science, Kisii University, P.O BOX 408-40200, KISII, KENYA, Karieko Obogi Robert
Published: December 2023

In this paper, we concentrate on norms of derivations implemented by self-adjoint operators. We determine the upper and lower norm estimates of derivations implemented by self-adjoint operators.The results show that the knowledge of self-adjoint governs the quantum chemical system in which the eigenvalue and eigenvector of a self-adjoint operator represents the ground state energy and the ground state wave function of the system respectively.
An Introduction to the Construction of Subfusion Frames
Authors:   Department of Mathematics, Shiraz Branch, Islamic Azad University, Shiraz, Iran., Rahimi E. , Amiri Z. ,   Department of Mathematics, Vali-e-Asr University, Rafsanjan, Iran.
Published: December 2023

Fusion frames and subfusion frames are generalizations of frames in the Hilbert spaces. In this paper, we study subfusion frames and the relations between the fusion frames and subfusion frame operators. Also, we introduce new construction of subfusion frames. In particular, we study atomic resolution of the identity on the Hilbert spaces and derive new results.