bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluation of water hardness treatment methods using sodium hydroxide and their impact on water quality
Authors: Kheira Bouamer , Khaled Mansouri , Hamed Boukhari
Published: December 2024

Hard water is an environmental and technical challenge caused by high concentrations of calcium (Ca²⁺) and magnesium (Mg²⁺) ions, leading to scale formation that affects the efficiency of household and industrial appliances and increases maintenance and treatment costs. Additionally, hard water can pose health risks and reduce its quality for daily use. This study aims to evaluate the effectiveness of different doses of sodium hydroxide (NaOH) in treating water hardness and improving water quality by reducing total hardness (TH) and adjusting the physicochemical properties of water. Three main dosages were tested: the first dosage (5 g/L of NaOH), which assessed the basic effectiveness of sodium hydroxide; the second dosage (2.5 g/L of NaOH and 2.5 g/L of Na₂CO₃ with HCl and acid), aimed at balancing hardness reduction with mineral retention; and the optimized dosages (10, 20, and 30 mg/L of NaOH), which proved to be the most effective and balanced. The optimized doses successfully reduced total hardness to levels compliant with Algerian standards while maintaining calcium and magnesium concentrations within acceptable ranges. Furthermore, electrical conductivity (EC) remained within safe limits without significant increases, ensuring the water did not become oversaturated with dissolved salts. The slight increase in sodium (Na⁺) concentration also remained within permissible levels, enhancing the water's suitability for drinking and other uses. Based on these results, the optimized NaOH dosages are the optimal solution for water hardness treatment, achieving a balance between reducing hardness and ensuring water quality in compliance with local standards.
O papel da telemedicina no acompanhamento de pacientes crônicos: benefícios e limitações na prática clínica
Authors: Morais Bryan Quirino , Santos Alan França dos , Araujo Philipe de Pina , França Vinicius Rodrigues , Vezzani Mariana Fassa , Araújo Maria Fernanda Silvério Spindola de , Oliveira Luiz Carlos Alves de , Fideles Júlia Souza , Duarte Aline Paula , Neves Rafaela Matias Caitano , Sales Ana Beatriz Coelho , Castro Gabriela Gonçalves , Bizinoto Vitor Hugo Porto , Lima Ernesto Carvalho , Almeida Luisa Gabriela Português
Published: December 2024

A telemedicina é uma ferramenta inovadora na gestão de doenças crônicas, oferecendo acesso ampliado aos cuidados, melhor adesão ao tratamento e monitoramento contínuo. Ela permite intervenções precoces, reduz hospitalizações e otimiza custos, além de possuir tecnologias como telemonitoramento que ajudam a coletar dados em tempo real e apoiam pacientes em áreas remotas. No entanto, enfrentam desafios como barreiras tecnológicas, desigualdade de acesso, usabilidade para idosos e limitações em diagnósticos físicos, exigindo avanços em infraestrutura, políticas públicas e capacitação profissional. Dessa forma, com o crescente corpo de literatura sobre o papel da telemedicina no acompanhamento de pacientes com doenças crônicas, foi possível a realização de uma revisão integrativa de literatura por meio da plataforma pubmed, com seleção e análise criteriosa dos artigos, a fim de analisar as evidências atuais sobre os benefícios e limitações da telemedicina na prática clínica dos pacientes crônicos. Nesta revisão foi identificado que a telemedicina é uma ferramenta transformadora na gestão de doenças crônicas, ampliando o acesso à saúde, especialmente em áreas remotas, e promovendo maior adesão ao tratamento por meio de monitoramento remoto e suporte personalizado. Seus benefícios incluem detecção precoce de complicações, redução de hospitalizações e melhoria na qualidade de vida dos pacientes, influenciadas por fatores como infraestrutura tecnológica e adesão. Contudo, permanecem desafios, como barreiras tecnológicas, limitações na relação médico-paciente e questões éticas. Portanto, superar essas limitações é essencial para garantir benefícios acessíveis e sustentáveis ​​a longo prazo.
Hepatoprotective and antioxidant effects of ethanolic extract of Cucumis melo L against CCl4-induced oxidative damage in rats
Authors: Djidel Saliha , Bouaziz Amel , Barghout Nihed , Bentahar Assia , Saoudi Soulef , Tadrent Wafa , Bettihi Sarra , Khennouf Seddik , Dahamna Saliha
Published: December 2024

The study aimed to assess the effect of crude melon fruits extract (Cucumis melo L.) on the plasma antioxidant capacity and oxidative stress markers in liver tissue of CCl4 -hepatoxicity in mice. The administration of melon extract at doses of 200 and 600 mg/kg during 7 days caused significant elevation of plasma antioxidant capacity using DPPH (36.66 ± 2.53, (46.80 ± 1.708%). However, the administration of extract did not exhibit a significant reducing power (0.545 ± 0.023 and 0.581 ± 0.051) at two doses, respectively compared with control (0.446 ± 0.021). Evaluation of MDA levels revealed that the doses of 200 and 600 mg/kg reduced the lipid peroxidation in liver (21.54 ± 3.519 and 26.62 ± 6.681 nmol/g tissue respectively) compared with control group (126.2 ± 17.9 nmol/g tissue). Furthermore, a significant impact on protein levels in the liver was observed at a dose of 600mg/kg with a value of 18.61 ± 1.885 mg/ml. The catalase activity displayed an important elevation with 583.8 ± 34.56 U/tissue at the dose of 600mg/kg. Additionally, there was a significant increase in glutathione levels (9.335 ± 0.2980 μmol/g tissues and 9.476 ± 0.3349 μmol/g tissue) at both doses respectively. The findings of this study highlight melons as a source of natural antioxidants with significant biological functions.
Recuperação neurológica após tratamento cirúrgico de fratura-luxação traumática da coluna torácica - relato de caso
Authors: Façanha Filho Fernando Antônio Mendes , Vasconcelos Paulo Henrique Carvalho , Nascimento Lucas Silveira do
Published: December 2024

Introdução: Fraturas-luxações da coluna torácica são lesões graves, geralmente associadas a traumas de alta energia, como acidentes de trânsito. A localização mais comum desse tipo de lesão é no nível T12-L1, devido à sua posição de transição entre a coluna torácica rígida e a coluna lombar mais flexível A recuperação neurológica depende de fatores como o tipo de fratura e a duração da compressão medular. Objetivo: Relatar recuperação neurológica após tratamento cirúrgico de fratura-luxação torácica. Descrição do caso: Paciente masculino, 29 anos, sofreu atropelamento, apresentando fratura-luxação T5-T6 (AO tipo C, ASIA B). Após estabilização, foi submetido a artrodese posterior com fixação de T2-T8. No pós-operatório, houve melhora progressiva do quadro neurológico. Resultados: Após 5 meses paciente teve recuperação completa, sendo classificado como ASIA E. Conclusão: O tratamento cirúrgico precoce com realinhamento vertebral favorece a recuperação neurológica, mesmo em lesões inicialmente graves. Mais estudos  são  necessários  para melhor entendimento do potencial de recuperação neurológica nesse perfil de pacientes.
From kuru to BSE: a comprehensive review of prion diseases
Authors: Ioca Junior Claudio Alberto , Goyen Leandro Garin , Peres Gabriel Borges , Santos Rafael Augusto de Souza , Luz Pedro Casadei Ramos da , Silva Thiago Carvalho Da , Messias Thiago Silva , Silva Kaique Cesar De Paula
Published: December 2024

Prions are protein molecules that naturally occur in neural membranes (PrP). These components challenge our understanding due to their multiple functions, which are not yet fully unraveled. Structural changes can convert these molecules into a pathogenic form, known as PrPSc, causing insoluble aggregates that lead to neurodegenerative diseases, such as Creutzfeldt-Jakob disease, Fatal Familial Insomnia, and Gerstmann-Sträussler-Scheinker disease. These diseases have a long incubation period, approximately 30 years, without early detection by common diagnostic tests, highlighting the complexity of prion diseases. Once symptoms appear, prion diseases progress rapidly and are fatal, with an average life expectancy of just one year. Diagnosis is challenging; after symptom onset, a series of differential diagnoses is necessary, including electroencephalography, magnetic resonance imaging, computed tomography, and cerebrospinal fluid analysis, to exclude other degenerative diseases such as Alzheimer’s. Due to the rapid and devastating progression of symptoms, treatment is palliative, focused on providing comfort to the individual.
Assessment of the phytochemical composition, antioxidant, anti-inflammatory and antihemolytic activities of Artemisia campestris L. from the region of Tiaret, Algeria
Authors: Bouziane Amel , Taïbi Khaled , Aït Abderrahim Leila , Mouttah Dalila
Published: December 2024

The medicinal plants have been a cornerstone of traditional medicine practices across diverse cultures worldwide for centuries. The present research aims to evaluate the phytochemical compounds along with the associated antioxidant, anti-inflammatory and anti-hemolytic activities of the aqueous and methanolic extracts of Artemisia campestris L. belonging to two environmental conditions in Algeria. The obtained results revealed that both aqueous and methanolic extracts are rich in phenolic compounds holding numerous biological activities including antioxidant, anti-inflammatory and anti-hemolytic effects. The phenolic and flavonoid contents were both significantly higher in the aqueous extract of A. campestris in comparison with the methanolic extract. Besides, they were higher in A. campestris extracts belonging to the region of Ain Dheb when comparing to the region of Faidja. The antioxidant activity was also higher in the aqueous extracts (DPPH IC50 of 143.57 µg/mL and 137.17 µg/mL respectively for Ain Dheb and Faidja). The inhibition rates of proteins denaturation by A. campestris extracts reach 87.7% and 86.1% for the aqueous extracts and to 83.8% and 81.6% for the methanolic extracts respectively in Ain Dheb and Faidja at 300 µg/mL. However, the inhibition rates of hemolysis ranged between 81.2% and 78.7% for the aqueous extracts and 74.3% and 71.3% for the methanolic extracts respectively in Ain Dheb and Faidja. Overall, A. campestris could constitute a valuable natural source of antioxidant, anti-inflammatory and anti-hemolytic agent. This study validates the traditional uses and uncover its potential as a source of natural therapeutic agents for the development of novel, plant-based pharmaceuticals.
The influence of fiberglass posts on the mechanical behavior of dental fractures in endodontically treated teeth
Authors: Noronha Thiago Pompeu
Published: December 2024

The aim of this study was to evaluate the fracture resistance of endodontically treated premolars. Six extracted intact mandibular premolars were divided into 3 groups (n=2). All teeth had (MOD) mesio - occlusal -distal preparation + endodontic treatment + composite resin restoration (CR), and one of the groups received glass fiber post + CR. The specimens were loaded on a cusp slope until fracture and then had the values measured. In spite of is known that the loss of dental structure and the presence of fiber post restoration reduced fracture resistance in the tooth-restoration complex, there was no statistically significant difference between the groups in this study.
CAR-T CELL THERAPY FOR CHRONIC LYMPHOCYTIC LEUKEMIA: A PROMISING IMMUNOTHERAPY APPROACH
Authors: KHAN ZA , ABAID T , KHAN J , AHMAD W , USMAN M , BABAR A , NAEEM M
Published: December 2024

Chronic Lymphocytic Leukemia (CLL) is a prevalent hematological malignancy with limited curative options, necessitating innovative and effective therapeutic approaches. Chimeric Antigen Receptor (CAR) T cell therapy has emerged as a transformative treatment modality, leveraging genetically modified T cells for targeted antitumor activity. This study explores the advancements in CAR T cell therapy for CLL, emphasizing its clinical potential, key manufacturing processes, structural design, therapeutic mechanisms, safety considerations, and strategies for optimizing efficacy. A comprehensive analysis of current literature and clinical data was conducted to examine CAR T cell manufacturing processes, including T cell source selection, activation, genetic modification, and expansion. Detailed evaluation of CAR T cell structural components and generational developments provided insights into their design and functionality. Additionally, therapeutic mechanisms, antigen selection strategies, and toxicity management approaches were critically reviewed. Key findings highlight the iterative advancements across four generations of CAR T cells, enhancing their antitumor efficacy, targeting specificity, and safety profile. Optimal target antigen selection and refinement of structural components, such as the ectodomain, transmembrane domain, and endodomain, significantly contributed to improved functionality. While CAR T cell therapy demonstrated robust antitumor activity in CLL, associated toxicities remain a challenge. Ongoing efforts focus on mitigating adverse events and optimizing clinical outcomes. CAR T cell therapy represents a promising paradigm shift in CLL treatment, combining precision targeting with potent antitumor effects. Continued advancements in design, manufacturing, and safety strategies underscore its transformative potential to improve patient outcomes and revolutionize CLL therapeutics. Further clinical trials and research are warranted to fully realize its therapeutic promise.
Manufacturing and evaluating a machine for cutting and raking alfalfa and barley harvest into rows
Authors: Ahad Assad yaser  , Majed S. Himoud3‎ ‎  , Assad yousif khudher ‎
Published: December 2024

A machine was manufactured to belt -rake the fodder harvest with a moving finger bar . The harvest collecting machine was installed with a two-wheeled sickle mower, thus the machine group becomes a four-wheeled vehicle that performs two functions at the same time (cutting and harvesting the harvest). The study aims to reduce the effort, time, and fuel consumption required to cut the fodder crop and assemble it into rows in preparation for its subsequent transportation or treatment with silage making machines or hay. A two-factor factorial experiment with a completely randomized block design was conducted to evaluate the combined instrument. The forward speed of the compound machine has three levels: 1.19, 2.67, and 3.42 km/h, and the type of crop has two levels: barley and alfalfa. The results showed a direct relationship between the forward speed and the productivity of the machine, as it reached 0.215 ha/h with the third speed. The efficiency of harvesting and collecting the harvest reached 100% in the barley crop for all forward speeds, while the third speed failed to rake the alfalfa harvest. The cutting efficiency of the sickle mower was not affected, which was 99% when the combined  machine was connected to it in cutting barley and jet crops, and the level of cutting height remained stable, as the cutting deviation reached only 1 cm, while the combine machine affected the increase in the slip rate of the combined machine
A Review of Artificial Intelligence for Sentiment Analysis in Social Media Data
Authors:   Department of Electrical Engineering, Thapar University, Patiala, Punjab, India, Manish Manish ,   Department of Computer Sciences, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia, Alhussan Amel Ali
Published: December 2024

Social media sentiment analysis has benefited from the miracle of artificial intelligence (AI), mainly how it can handle large, conflated data sets and distill valuable insights. In this review, the authors consider the positive impact of AI in business, health care, politics, and social justice, including marketing, mental health screening, misinformation, and multilingualism. Using ML and NLP, artificial intelligence technologies empower real-time analysis of the social trends and behaviors that affect decision-making and social interactions. However, many challenges are still reflected in data imbalance, ethical concerns relating to privacy and consent, and difficulties in processing dynamic content and several modalities, languages, and emotional states. Such limitations call for interdisciplinary collaboration and comprehensible ethical guidelines, including the FAIR principles for bettering data stewardship and ensuring no biases in AI systems. When developed as scalable, context-aware, and equitable systems, opinion mining may help solve social dilemmas and build an inclusive digital environment. Based on current trends, challenges, and suggested future directions, this review underlines the need for ethical, interdisciplinary, and culturally sensitive approaches to unlock the proper potential of AI in SA and social media sentiments.
Metaheuristic Optimization for Scheduling in Cloud Computing Environments: A Review
Authors:   Department of Electrical Engineering, Shoubra Faculty of Engineering, Benha University, Egypt, Rokaia Rokaia
Published: December 2024

This review reviews metaheuristic optimization algorithms for solving various important issues in cloud computing, such as scheduling, resource provisioning and energy consumption. Specifically, PSO, GA, and DRL are application area-specific intelligent scheduling algorithms that offer high scalability, flexibility, and efficiency in solving NP-hard problems, thereby improving system performance and QoS. The following are some of the key strengths in the study: The energy utilization and the cost utilization as key strengths are presented; the weaknesses are programs and things such as scalability and integration issues that arise when using hybrid systems. The focus for the future lies in combining machine-learning techniques, improving the further development of hybrid approaches, and testing them in real cloud systems to cope with the increasing sophistication of distributed systems. This paper provides an outline of metaheuristic optimization with an emphasis on how this area can contribute to enhancements and further developments in the capacity, recyclability, and dependability of cloud computing.
A Review of Hybrid Machine Learning and Metaheuristics for Vehicle Routing Problems
Authors:   Operations Research Department, Faculty of Graduate Studies for Statistical Research, Cairo University, Giza 12613, Egypt, Ali Ali
Published: December 2024

Vehicle Routing Problem (VRP) variants and modifications are significant problems in combinatorial programming and logistics. They relate to efficient and optimal transport routing for customer demand fulfillment while monitoring operational costs. Traditional methods have been exact algorithms, heuristics, and metaheuristics; however, it has yet to be known to cater to the scalability, computational, efficiency, and adaptability challenges posed by dynamic and large-scale VRPs. Recent advances have shown enormous promise in combining this with learning approaches in hybrid forms: ML and metaheuristic and optimization techniques to overcome them. Such hybrid approaches now promise even better quality solutions, computational speeds, and real-world applicability for two actual ML methods: deep reinforcement learning and meta-learning. The present study surveys the current state of the art of hybrid methods applying to VRPs to find strengths, weaknesses, and directions that future research could intensify to enhance efficiency, scalability, and applicability to transportation and logistics systems.
Analgesic Self-Medication among Medical Students in Omar Al-Mukhtar University
Authors: Hajer Omar  , Mahmoud Elderbi
Published: December 2024

Analgesic self-medication is a fairly common behavior around the world, it is affected by many factors, such as; family, society, drug availability, self-care orientation, level of medical education, and illness awareness. The excessive as well as inappropriate consumption of analgesic gives rise to many problems such as peptic ulcer and nephropathy. This issue is more worsen in developing countries or places where the analgesic can be purchased without prescription such as in Libya. This research was performed to evaluate the possible reasons, prevalence, awareness as well as knowledge about consumption of analgesics without a prescription between the medical students in faculty of medicine, Omar Al-Mukhtar University. This is study was carried out during the period from7/2/2022 to 15/3/2022 in Omar Al-Mukhtar University, Al-Bayda city in Libya targeting 340 medical student who received electronic and handed questionnaires. Our study showed that 66.17% of participants were female and 33.53% were male. The prevalence of students use analgesics without prescription was (70.62%) and 53.41% of the students knew that self-medication with analgesics may affect their health negatively, (3.26%) of them had side effects and (57.27%) of them have been checked the expiry date before using analgesic. The main source of analgesics was a recommendation of a pharmacist (38.49%). The most analgesic used for self-medication was Acetaminophen (41.08%) followed by Ketoprofen (19.92%). The common causes for consuming analgesic without prescription were Headache (24.90%) followed by Dysmenorrhea (18. 26 %) and toothache (12.45%). 47.22% of the students was previous experience of using a particular analgesic. The study revealed that the prevalence of using analgesic between medical students is relatively inflated. It is mandatory to educate health sciences students about misusing and risks of self-administration as well as further researches are needed to investigate the prevalence of consumption of analgesics without a prescription between university undergraduates.
Faaliyet Raporlarının Okunabilirliği ile Marka Değeri Arasındaki İlişki
Authors: Çinko Levent , Bayyiğit Sıdıka Sibel , Merter Abdullah Kürşat , Çerez Sedat , Alataş Gökhan
Published: December 2024

Amaç: Bu çalışma, faaliyet raporlarının okunabilirliğinin marka değeri üzerindeki etkisini incelemektedir. Gereç ve Yöntem: Araştırmada, 2012-2021 yılları arasında Brand Finance tarafından yayımlanan "Türkiye'nin En Değerli 100 Markası" raporlarında yer alan finansal olmayan 40 şirketin verilerinden elde edilen 285 gözlem kullanılmıştır. Okunabilirlik, faaliyet raporlarının sayfa, kelime ve karakter sayılarının doğal logaritmalarının aralık standardizasyonu ile ölçülmüş; marka değeri ise Brand Finance verilerinin doğal logaritması alınarak hesaplanmıştır. Veri analizi için panel veri regresyon yöntemi kullanılmış ve Driscoll-Kraay dirençli standart hata tahmincisi uygulanarak model tahmin edilmiştir. Bulgular: Bulgular, faaliyet raporlarının okunabilirliğinin marka değeri üzerinde pozitif ve istatistiksel olarak anlamlı bir etkiye sahip olduğunu göstermektedir. Diğer bir ifadeyle, raporların daha sade ve anlaşılır hazırlanması, marka değerini artırmaktadır Sonuç: Bu bulgu, raporların daha karmaşık ve anlaşılması güç hale geldikçe şirketlerin marka değerinin azaldığını ortaya koymaktadır. Çalışma, kurumsal iletişim ve finansal raporlama literatürüne katkı sağlamakta ve şirketlere faaliyet raporlarının sade ve anlaşılır bir dilde hazırlanmasını önermektedir. Bu sayede, kurumsal iletişim stratejilerinin etkinliği artırılarak marka değeri yükseltilebilir.
School Heads’ Strategies, Innovation, And Resiliency in the Implementation of Inclusive Education
Authors:   aiza.palma001@deped.gov.ph https://orcid.org/0009-0002-3310-8766 Guimaras State University Buenavista, Guimaras, Philippines, Palma Aiza
Published: December 2024

This study investigates the strategies, innovations, and resilience of school heads in the Schools Division of Iloilo in implementing inclusive education. Utilizing a descriptive-survey research design, the study involved 295 school heads selected through stratified random sampling. The findings indicate that collaboration among educators, particularly between general and special education staff, is a key strategy for fostering inclusive classrooms. Despite demographic variations, there were no significant differences in strategies based on gender, civil status, educational attainment, or school size. School heads across all categories demonstrated high levels of innovation and resilience, with a particular focus on future-oriented skills, technology integration, and crisis management. Additionally, the study found moderate positive correlations between the strategies, innovations, and resilience of school heads, suggesting that these factors collectively enhance the effectiveness of inclusive education. The results underscore the importance of a consistent, collaborative approach to inclusive education across different geographic regions and demographic groups.

Keywords: Inclusive education, school leadership, resilience, innovation, collaboration, educational strategies, Iloilo, descriptive-survey, school heads
School Heads’ Leadership Effectiveness, Professional Commitment, and Workplace Culture
Authors:   mervajane.labindao@gmail.com https://orcid.org/0009-0009-1648-2503 Guimaras State University Buenavista, Guimaras, Philippines, S. Labindao Merva Jane
Published: December 2024

This study investigates the leadership effectiveness, professional commitment, and workplace culture among elementary school heads in the Schools Division of Antique, Philippines, during the school year 2023-2024. Utilizing a descriptive-correlational research design, the study surveyed 365 randomly selected teachers to assess these constructs and their relationships. Findings revealed that school heads generally demonstrate very high levels of leadership effectiveness and professional commitment and a very good workplace culture, with significant variations observed when classified by school size. Additionally, the study identified significant relationships among the three constructs, highlighting the importance of professional development to enhance school management and educational outcomes.

Keywords: leadership effectiveness, professional commitment, workplace culture, school management, educational outcomes
Parental Support Management Initiatives and Teachers’ Implementation of Deped Order 83 (Prohibiting the Use of Cellular Phones)
Authors:   jeivy.gayoso@deped.gov.ph https://orcid.org/0009-0002-5834-8416 Guimaras State University Buenavista, Guimaras, Philippines, D. Gayoso Jeivy
Published: December 2024

The purpose of this study is to evaluate the impact of parental support, management initiatives, and teachers’ implementation of DepEd Order 83, which prohibits the use of cellular phones during class hours. The study aims to understand how these factors contribute to the effective enforcement of the policy and its implications for classroom discipline and student behavior. In the context of growing concerns about the negative effects of mobile phone use in schools, this research is important for identifying the role that parental involvement and school management play in ensuring policy compliance. This research seeks to contribute to improving educational environments by minimizing distractions caused by mobile phones. The study employed a descriptive-correlational research design, surveying 350 teachers from the Schools Division of Capiz. A researcher-made questionnaire was used to gather data on parental support, management initiatives, and the extent of teachers’ implementation of DepEd Order 83. Statistical methods, including frequency counts, ANOVA, T-tests, and Pearson’s r, were used to analyze the data. The results revealed that both parental support and school management initiatives are generally strong, and teachers’ compliance with the policy is high. However, no significant differences were observed across demographic groups such as age, length of service, and educational attainment. These findings indicate a need for continuous reinforcement of the policy through improved strategies and better resource allocation. The study concludes that strengthening the collaboration between parents, school management, and teachers is essential for enhancing the policy’s effectiveness. Recommendations include providing ongoing training for teachers on classroom management and encouraging creative strategies for enforcing mobile phone restrictions.

Keywords: Parental support, management initiatives, teacher implementation, DepEd Order 83, cellular phones, classroom management
Influence of the Ratio of Water and Organic Solvents on the Antioxidative Activity and Content of Bioactive Components in Artemisia annua L. and Artemisia absinthium L. Extracts
Authors: Horozić Emir , Dedić Jasmina , Huseinović Edina
Published: December 2024

Bitter and sweet wormwoods are traditional plant species in the Asteraceae (Compositae). Their use in traditional medicine has long been known. Numerous preparations of bitter and sweet wormwood (teas, tinctures) are used in the treatment of diseases of the digestive system. The content of bioactive components (polyphenols and flavonoids) and antioxidant activity of Artemisia absinthium L. (bitter wormwood) and Artemisia annua L. (sweet wormwood) were examined in this paper. Extract's series were prepared by mixing selected organic solvents (methanol, ethanol and acetone) and water in different volume ratios for both analyzed species. Antioxidant activity was tested using FRAP and DPPH methods. Extracts of sweet wormwood contain more bioactive components and have a higher antioxidant capacity compared to extracts of bitter wormwood. In terms of extraction efficiency, the mixture of acetone and water (20:30 v/v) proved to be the most efficient. Regarding pure organic solvents, the most effective for the bioactive components isolation is ethanol, while acetone showed the weakest extraction power.
Novo nalazište bijelog vimenjaka (Platanthera bifolia (L.) L. C. Rich.) u Bosni i Hercegovini
Authors: Hasanbegović Anis , Pintarić Dario , Murtić Senad , Bašić Fejzo
Published: December 2024

Bijeli vimenjak je rijetka vrsta naših šuma. Tokom dvogodišnjih terenskih istraživanja (2021-2023) flore okoline Sarajeva, na lokalitetu Donjih Miševića konstatovan je niz populacija ove vrste. Vrsta je nađena u nekadašnjoj hrastovo grabovoj šumi na kojoj je zasađen bijeli bor. Dati su svi dostupni geološki, pedološki i ekološki parametri. Nadmorska visina je izmjerena pomoću GPS uređaja „Magelan eXplorist 500“. Nagib terena je utvrđen sa klinometrom iz kompasa „Recta DP 6 GLOBAL“. Takođe, utvrđeno je da u "Herbarijumu Zemaljskog muzeja BiH (SARA)" ne postoji nijedan herbarizovan primjerak pa će se dio materijala herbarizovati i pohraniti u isti.
Rewinding of 3 Phase Induction Motor Double Speed
Authors: Linda Sartika  , Prasetia Abdul Muis Prasetia , Boby Setiawan  , Tri Widodo
Published: December 2024

A double-speed motor is a type of asynchronous AC motor designed with two or more windings. The presence of two separate windings causes three-phase double-speed motors to have a significantly larger physical size compared to three-phase single-speed motors of the same power rating. Numerous studies have investigated the impact of the rewinding process on the efficiency of single-speed induction motors. However, limited attention has been given to double-speed induction motors. Addressing this research gap, the present study focuses on two primary objectives: first, to analyze the impact of rewinding on the performance characteristics of double-speed induction motors; and second, to evaluate the operational performance of these motors after undergoing the rewinding process. In this study, the rewinding process utilized copper wire with a diameter of 0.50 mm, wound using a mold to create a total of 52 windings. Performance testing revealed the following results: under no-load conditions with slow rotation, the motor exhibited a current of 1.3 A, a frequency of 50.45 Hz, a power factor (cos φ) of 0.86, and a speed of 1515 RPM. When a load was applied under fast rotation, the motor demonstrated a current of 1.9 A, a frequency of 50.29 Hz, a power factor (cos φ) of 0.997, and a speed of 2949 RPM. The experimental results showed minimal variation in current and frequency between loaded and unloaded conditions, with significant differences primarily observed in rotational speed between slow and fast modes. This behavior is characteristic of double-speed motors, which are capable of operating at two distinct speeds. In fast rotation mode, the speed can reach approximately twice that of slow rotation, highlighting the design's capability to adapt to varying operational demands.
Analysis of Malang University Student Achievement Grouping Using the K-Means Clustering Method
Authors: Alfarera Moh. Aqil Mukhtar , Fatah Zaehol
Published: December 2024

With the increasing number of students and variations in achievement, managing achievement data in higher education has become more complex, so manual methods are insufficient. K-means clustering was chosen because of its ability to group data based on specific attributes, which makes it easier to identify patterns and trends. This research aims to prove K-Means' effectiveness in analyzing achievement data and adding to the literature regarding the application of data mining in education. The dataset includes student achievement indexes from various study programs at the University of Malang from 2018 to 2022. The data is processed to group student achievements efficiently. The clustering model was built using one of the algorithms in the clustering method, namely K-Means. This research produced the best cluster with a total of 3 clusters. The process was conducted to determine the best grouping by testing six cluster models. The best cluster was selected using the Davies Bouldin index test. Based on research with the results, these three groups can be categorized as cluster 0 in the low category with a value of 100, cluster 1 in the high category with a value of 4.100, and cluster 2 in the middle category with a value of 1.900.
Antiplasmodial activities of selected artemisinin-based combination therapy (ACT) drugs co-administered with beer in Plasmodium berghei-infected albino rats.
Authors: Soniran Olajoju , Dr. Segun Solomon Ogundapo  , Dr.Joseph Bagi Suleiman
Published: December 2024

Alcoholic beverages, particularly beer, are widely consumed in Nigeria despite its contribution to most disability, deaths, and some non-communicable diseases. Based on unpublished reports, some individuals consume alcoholic beverages while treating malaria, which raises concerns about potential interactions between alcohol and antimalaria drugs. However, there is paucity of information on the effect of alcoholic beverage consumption on the management of malaria. Hence, this study investigated the effect of alcoholic beverage co-administered with Artemisinin-based Combination Therapy (ACT) drugs on parasitaemia in an established malaria infection of albino rats infected intraperitoneally with Chloroquine-sensitive Plasmodium berghei. Different groups of the experimental animals (except the positive and negative controls) were orally administered 0.5mL of beer (5.2% alcohol) either 1 hour before, concurrently, or 1 hour after malaria treatment with 0.2 mL of selected ACT medicines. All experimental animals (except the negative control) were treated with only one of the ACTs: artemether + lumefantrine (AL), dihydroartemisinin + piperazine (DP), and artesunate + amodiaquine (AA) for three days. Parasitaemia was determined from Giemsa-stained thin blood films of experimental animals viewed under the light microscope using standard methods. Result showed that parasitaemia reduced significantly (p<0.05) in the positive control groups treated with ACT compared to other experimental groups (beer-administered and negative control). Parasitaemia also reduced significantly (p<0.05) in the beer-administered groups treated with ACT compared to the negative control. In the group of infected animals administered beer without antimalarial treatment, parasitaemia reduced significantly (p<0.05) compared to the negative control only. These findings suggest possible drug-alcohol interactions that has the potential to reduce the therapeutic efficacy of ACTs.
Thrift Business Network Analysis at Happy Thrift Stuff
Authors: Heriana Nana , Marselina Resya Dwi , Adha Santi Nurul , Nur S Alna Azzahra
Published: December 2024

This study aims to comprehend and examine the functioning of the thrift business network at Happythrifstuff. The data collection methods utilized in this study encompass interviews and documentation. The research methodology is a descriptive qualitative approach, which entails collecting, organizing, and presenting data obtained during the study to achieve precise and thorough information. The data suggest that the thrift business network at Happythrifstuff acquires items from Bandung (Gede Bage), which are obtained from distributors in Batam (Sumatra), with the leading suppliers in Korea and Japan. The analysis indicates that the thrift company is well-suited for students or individuals who want to establish an enterprise with relatively small cash and the potential for profitable earnings. This is apparent from the original capital expenditure of 40 goods amounting to Rp. 5,740,000, resulting in Rp profit revenue. 1,148,000 from the sale of 40 products. This essay aims to inspire individuals to engage in the second-hand goods industry, to create cash, and to assist in fulfilling everyday necessities.
Analisis Kinerja Keuangan Berdasarkan Rasio Arus Kas pada PT Primarindo Asia Infrastructure, Tbk. Tahun 2015 – 2019 Yang Terdaftar di Bursa Efek Indonesia
Authors: Karmana Dedi , Nasution Sakti Muda , Fudsy Mira Ismirani
Published: December 2024

This study aims to determine how the financial performance based on the cash flow ratio at PT Primarindo Asia Infrastructure, Tbk. 2015 – 2019 Listed on the Indonesia Stock Exchange. The research method used is a quantitative method where after all the required data has been collected, the next step is to analyze the collected data to be understood and processed in the form of explanations. After analyzing and discussing the problem, the authors conclude that the cash flow ratio shows poor financial performance, because the average ratio decreases and is below 1. There are only 2 ratios that are considered good, namely the operating cash flow ratio to interest and cash flow ratio operations to capital expenditures.
Pengaruh Sistem Informasi Akuntansi Penggajian Terhadap Pengendalian Internal Penggajian
Authors: Septiani Anisa , Yusup Maulana , Suzanto Boy , Komara Anton Tirta
Published: December 2024

This study aims to determine the effect of payroll accounting information systems on payroll internal control. This study uses a quantitative approach with a survey approach to employees directly related to the accounting information system at a motorcycle spare part dealer in Badung City with 30 respondents. Using a simple linear regression analysis technique to determine the magnitude of the influence used the influence of the payroll accounting information system on payroll internal control. The calculation results show a positive influence of the payroll accounting information system on internal control of payroll with a total effect of 66.4%. The remaining 33.6% can influence by other factors not examined in the study.
Implementation of SAK-EMKM
Authors: Patmawati Nurhani , Astriani Devi , Arimurti Trias
Published: December 2024

The objective of this study is to examine the impact of socialization, accounting comprehension, and readiness of micro, small, and medium enterprises (MSMEs) on the implementation of financial statement preparation based on the Indonesian Financial Accounting Standards for Micro, Small, and Medium Enterprises (SAK-EMKM). The research method is categorized as quantitative research. The study utilizes primary data in the form of a questionnaire. The study focused on the population of Micro, Small, and Medium Enterprises (MSMEs) that actively took part in the UMKM Juara program in the Karawang Regency during the year 2022. The sampling technique employed was saturation sampling, wherein the whole population under study was sampled. The utilized specimen had a value of 132. The findings indicated that partial socialization positively and significantly influences the implementation of financial statement preparation based on SAK-EMKM.
On the other hand, an understanding of accounting has little impact on implementing financial statement preparation based on SAK-EMKM. Additionally, MSME readiness significantly affects the implementation of financial statement preparation based on SAK-EMKM. The concurrent processes of socialization, comprehension of accounting principles, and preparedness of MSMEs have a favorable and substantial impact on the execution of financial statement preparation based on SAK-EMKM.
Analisis Deskriptif Budaya Organisasi di Lingkungan Dosen Tetap PTS Swasta Wilayah Sumatera Selatan
Authors: Helmi Muhammad
Published: December 2024

The background of this research departs from the phenomenon of the demands of the times, which require the world of higher education to produce superior and competitive human resources in the economic field. This condition cannot be fulfilled solely by relying on State Universities. Therefore, the role of private universities is crucial. One of the private universities that can meet this need in the College of Economics. This higher education path is expected to meet the demands for reliable human resources in the economic field, both in the academic world and in the practical world. This condition cannot separate from the role of lecturers in meeting these demands. This study aimed to determine the organizational culture of permanent lecturers in the South Sumatra region. The population in this study were private university lecturers in the South Sumatra region. The research method uses a descriptive survey using descriptive analysis. The number of research samples was 185 respondents/permanent lecturers. The study results illustrate that organizational culture is not good, with two indicators having the lowest value. The indicators in question are doing work carefully and doing work carefully. For this reason, it is necessary to improve indicators by doing work carefully and doing work carefully.
Pengaruh Promosi Dan Saluran Distribusi Terhadap Keputusan Pembelian
Authors: Sopiani Sipa , Larashati Irena , Juhana Dudung , Manik Ester
Published: December 2024

The decline in sales of fashion products in one of the department stores in Cimahi City is the background of this research. So the authors want to know whether there is an influence of promotion and distribution channels on purchasing decisions on fashion products at one of the department stores in Cimahi City. Researchers surveyed customers who had made fashion products that became the object of study. The research method used is path analysis because this research, in addition to getting an overview of purchasing decisions associated with promotions and distribution channels, also gets an overview of the pattern of relationships and the influence of the research variables determined. The study results show a positive relationship between promotion (X1) and distribution channel (X2), 0.826. There is a positive and significant effect of promotion (X1) on purchasing decisions (Y) that is equal to 40.67%; there is a positive and significant influence of distribution channels (X2) on purchasing decisions (Y) of 32.53%. Therefore, there is a positive and significant influence of promotion (X1) and distribution channel (X2) on purchasing decisions (Y) together, which is 73.2%, and the rest by other factors or also called epsilon by 26.8%. These studies stated that improving purchasing decisions can be done by increasing promotion and location.
Business Network Analysis of Gurilem Crackers MSMEs In Cililin Sub-District, West Bandung Regency
Authors: Sutisna Andi , Marselina Resya Dwi , Putri Pramia Andriana
Published: December 2024

In order to mitigate the elevated unemployment rate in Indonesia, the community must investigate other business prospects, such as small and medium-sized enterprises (SMEs), exemplified by Gurilem Crackers. Gurilem Crackers, a small and medium-sized enterprise (SME), possesses a robust and established infrastructure encompassing business networks, production methods, marketing strategies, and financial resources. These elements contribute to the improvement of firm productivity and market competitiveness. The data gathering method employed is descriptive qualitative, including interviews and observations. This study examines the business network, production processes, marketing tactics, and finances of Gurilem Crackers SME, which Mang Teten owns in the Bongas hamlet. The research findings suggest that Mang Teten's company utilizes business networking by collaborating with Gurilem cracker suppliers, employs essential production tools, relies exclusively on word of mouth for Gurilem Cracker marketing, and achieves a monthly profit of Rp—1,236,000.00 with a profit margin of 8.9%.
Employee Performance: The Impact of Reward and Incentive
Authors: Romy Elly
Published: December 2024

This study sought to ascertain the impact of rewards and incentives for top-performing employees on employee morale at Manufacturing Company. The study population consisted of 180 employees at Manufacturing Company. The sample was selected using the random sampling approach. The sample size in this study consisted of 45 employees. This research falls under the category of quantitative research. Quantitative research focuses on measurable research objects and uses numerical or ratio-based variables to address specific problem formulations or test stated hypotheses. The multiple regression analysis yielded the equation Y = 5,263 + 0,422X1 + 0,447X2 + e, indicating that rewards and incentives had a statistically significant positive impact on staff morale. Concurrently, the outcomes of the test (t) or partial test indicate that awards favorably and favorably impact staff morale. Where is the value of tcount 3.286 visible? The t-table value of 2.01808 and the significance value of 0.002 indicate that the influence of the incentive variable on employee morale is positive and substantial. The t-count value of 3.693 further supports this finding. Similarly, the t-table value of 2.01808 and the significance value of 0.001 indicate a significant effect of the incentive variable on employee morale, with α set at 0.05. The coefficient of determination was determined to be 0.681. The independent variables, reward, and incentives, account for 68.1% of the variation in the employee morale variable. The remaining 31.9% is attributed to other variables not included in the model.
Pengaruh Kualitas Pelayanan Dan Kualitas Produk Terhadap Kepuasan Konsumen
Authors: Pratama Yudi , Heryanto Imam , Dwiyanisa Ashila , Megawati Imelda
Published: December 2024

This study examines the importance of service quality and product quality on consumer satisfaction. The survey was conducted on 150 customers at a bicycle retail company in the city of Bandung. This research uses path analysis technique to determine the effect of quality of service and product quality on consumer satisfaction, either partially or simultaneously. The results showed that service quality had the most substantial influence on consumer satisfaction, with the value of the importance of the effect being 32.5%. Product Quality has the second most substantial influence on Consumer Satisfaction, with a value of 24.9%. The results of the calculation of the coefficient of determination (R2) expressed in percentages describe the contribution of all independent variables, namely Service Quality (X1) and Product Quality (X2) in determining Customer Satisfaction (Y) of 57.4% and the amount of epsilon is = 0.426 or of 42.6% influenced by other factors not examined in this study.