bluuebunny/crossref_metadata_2025 huggingface dataset:
Metoda oceny wpływu zmiennego zapotrzebowania odbiorców węgla na efektywność funkcjonowania kopalń
Authors: FUKSA Dariusz
Published: August 2023

Zaprezentowana w artykule metoda oparta jest na symulacji Monte Carlo i obejmuje badanie wpływu wahań losowych zapotrzebowania na efektywność kopalń oraz ich grup (spółek). Dla losowych wahań zapotrzebowania przyjęto rozkład normalny, a przedstawione warianty analizy uwzględniają:• przyjęcie wartości oczekiwanej i dyspersji według danych retrospektywnych;• przyjęcie najbardziej prawdopodobnego błędu prognozy wynikającego z formuł predykcyjnych;• uwzględnienie skorelowanych zmian zapotrzebowania.

Uzyskane wyniki przedstawiono w postaci histogramów stopnia dźwigni operacyjnej. Pozwalają one przewidywać, jak będzie kształtował się stopień dźwigni operacyjnej kopalń, jak również umożliwia oszacować, w którym kierunku zmiany te będą postępować i z jakim prawdopodobieństwem. Opracowana i zweryfikowana na realnych przykładach analiza wrażliwości stanowi przydatny element racjonalizacji procesów decyzyjnych.
Przyjazna dla środowiska przeróbka surowców mineralnych – przegląd referatów zaprezentowanych podczas konferencji naukowo-technicznej KOMEKO 2023
Authors: MALEC Małgorzata , STAŃCZAK Lilianna
Published: August 2023

Artykuł stanowi przegląd wybranych referatów zaprezentowanych podczas konferencji KOMEKO 2023, zorganizowanej w Szczyrku przez Instytut Techniki Górniczej KOMAG w dniach od 27 do 29 marca br. Ich tematyka dotyczyła m.in. innowacyjnych rozwiązań technicznych i technologicznych w zakresie przeróbki mechanicznej surowców mineralnych, racjonalnego gospodarowania odpadami zgodnie z wymaganiami Zielonego Ładu, wytwarzania wodoru i kompozytów geopolimerowych z odpadów pogórniczych, wzbogacanie odpadów oraz kruszyw zawierających pierwiastki ziem rzadkich czy też recyklingu odpadów zawierających lit. Dużym zainteresowaniem uczestników konferencji KOMEKO 2023 cieszył się panel dyskusyjny poświęcony zautomatyzowanemu, zeroodpadowemu zakładowi przeróbczemu. Szczególną uwagę zwrócono na temat zagospodarowania odpadów wydobywczych w Polsce w świetle wyzwań europejskiej gospodarki o obiegu zamkniętym oraz na temat bezpieczeństwa eksploatacji maszyn i urządzeń przeróbczych w aspekcie wdrażania innowacyjnych rozwiązań. Konferencja naukowo-techniczna KOMEKO 2023 stanowiła forum interesującej wymiany wiedzy i doświadczeń zawodowych między naukowcami, producentami maszyn i urządzeń przeróbczych, a ich użytkownikami reprezentującymi sektor producentów surowców mineralnych. O sukcesie konferencji świadczą ożywione i owocne dyskusje między wszystkimi interesariuszami procesu przeróbki surowców mineralnych.
Monitoring zasięgu wód powierzchniowych nieczynnego zbiornika poflotacyjnego jako element oceny jego bezpieczeństwa
Authors: JAŚKOWSKI Wojciech
Published: August 2023

Składowisko odpadów poflotacyjnych stanowi jeden z ważnych elementów w procesie produkcji miedzi. Nieodłącznym elementem eksploatacji składowiska jest ściśle z nią związane, prowadzone systematycznie badania i obserwacje kontrolne. Głównie są to geodezyjne pomiary deformacji obwałowań i powierzchni terenu na przedpolu składowiska, hydrologiczne obserwacje stanów wód w korpusie obwałowania i bliskim jego przedpolu. W artykule przedstawiono metody i wyniki monitoringu geodezyjnego nieczynnego już składowiska odpadów wydobywczych Gilów oraz technologie stosowane w monitorowaniu zasięgu zalewiska nadosadowego.
Wykorzystanie modelowania i symulacji stochastycznej do optymalizacji procesów wydobywczych
Authors: SNOPKOWSKI Ryszard , SUKIENNIK Marta , NAPIERAJ Aneta
Published: August 2023

Celem artykułu jest analiza możliwości i korzyści, jakie daje użycie metody modelowania i symulacji stochastycznej w optymalizacji procesów produkcyjnych. W artykule przedstawiono ogólną charakterystykę modelowania i symulacji oraz zaprezentowano przykłady modeli stochastycznych wybranych procesów produkcyjnych realizowanych w kopalniach węgla kamiennego w Polsce. Przedstawiona analiza pozwoliła na sformułowanie wniosku, że metoda modelowania i symulacji stochastycznej jest jedną z metod, którą warto stosować jako narzędzie wspomagające optymalizację procesów. Jej najważniejszą cechą jest umożliwianie analizy procesu, które bez względu na zakres czasowy trwania, mogą być weryfikowane w ciągu kilku minut. W konsekwencji można przeanalizować wiele wariantów działania przed właściwym wprowadzeniem ich do realizacji w warunkach rzeczywistych.
Analysis of Students' Learning Interest in the Implementation of the 5 E Cycle Model on Chemical Equilibrium Material
Authors: Ernawati Yuyun , Sugiyarto K. H. , Wiyarsi Antuni , Ikhsan Jaslin
Published: August 2023

This study aims to analyze students' learning interests in the application of the 5E cycle model to chemical equilibrium material at SMA Negeri 1 Seyegan. The research design used in this study was pre-experimental with a one-shot case study. The research sample consisted of all class X MIPA 1 students, with a total of 27 students. The sampling technique used was purposive sampling. Data collection techniques are carried out with an eye toward measuring student learning interest. The type of data analysis used is descriptive, calculating the proportion of the overall score at the level of interest in learning. The result of the study is that the level of interest in studying at SMA Negeri 1 Seyegan is in the moderate-high category.
Mobile Learning Research Trends in Indonesia: A Systematic Literature Review
Authors: Nugroho Ichwan Restu , Wilujeng Insih , Prasetyo Zuhdan Kun
Published: August 2023

The existence of mobile devices and advances in technology has made mobile learning one of the learning trends in schools ranging from elementary to high school and even college in Indonesia. This content analysis research aims to systematically analyze trends in the development of mobile learning in Indonesia based on analysis of articles found in international and national journals. Based on the search results obtained 61 articles. Article analysis uses the Paper Classification Form (PCF) instrument which has been tested for validity and reliability. Based on the results of the analysis, the most widely used research method for mobile learning is Quasi-Experiment (44%) by testing the results of Research and Development (82%) of mobile learning products. Most mobile learning is for high school students (57%). Android Mobile Learning Apps (52%) are the most widely used mobile learning products in research. Learning outcomes (19%) are the most dominant bond variables related to mobile learning. This result can be used as a reference for research on the development of mobile learning media using the Android platform in science learning in schools.
Meta-Analysis of the Influence of the STEM-Integrated Learning Model on Science Learning on 21st Century Skills
Authors: Asrizal  , Usmeldi  , Azriyanti Riza
Published: August 2023

One of the skills that students must have 21st century skills. In order for students to understand and master the skills of learning materials, especially science learning, it is necessary to apply the STEM integrated learning model. Meta-analytic research is needed on the effect of the STEM integrated learning model on science learning on 21st century skills based on different previous research findings. The purpose of this research is to see how much influence the STEM integrated learning model has on science learning on 21st century skills in terms of educational level, learning models, and types of 21st century skills. The research method used is a meta-analysis of 22 articles in national and international journals. Coding is a data collection technique, and for effect size analysis it is used for data analysis techniques. The research results obtained, namely with variations in educational levels, learning models, and 21st century skills, state that the application of STEM integrated learning models in science learning has a high influence on 21st century skills. The conclusion from this meta-analysis research is that there is a high influence from the application of the model STEM integrated learning in science learning towards 21st century skills.
Effectiveness of Google Sites-Assisted Learning Media on Vibration, Waves, and Sound Materials
Authors: Abdjul Tirtawaty
Published: August 2023

This study aims to determine the effectiveness of learning media assisted by google sites on vibration, wave, and sound materials. This research is a Research and Development (R&D) research using the 4-D model which was carried out at SMP Negeri 3 Gorontalo for a limited test with a number of students as many as 20 people and a wide-scale test carried out at SMP Muhamadiyah Batudaa with a total of 40 students. Data collection techniques were obtained through observation, questionnaires and tests. Data analysis used descriptive qualitative analysis. The results showed that the google sites-assisted learning media developed had met the effective criteria of learning media. Judging from the results of the observation of student activities in the limited trial of 83% (Good) and the extended trial of 85% (Good), while the N-Gain value of student learning outcomes including preetest and posttest in the limited trial obtained a value of 0.60 (Medium) and extended trial of 0.62 (Medium). The conclusion obtained is that google sites learning media is effective for use in the learning process at school.
Antidiabetic Molecular Mechanisms of Active Compounds from Several Orchids
Authors: Yulianti Evy , Mercuriani Ixora Sartika , Sugiyarto Lili , Huang Tzou-Chi
Published: August 2023

Hyperglycemia condition that leads to diabetes causes various complications. Various active compounds from plants have been studied for their antidiabetic abilities. One of them is the orchid plant. Besides being used as decoration, orchids contain several active compounds that have been proven to be used in medicine, including diabetes. This article discusses the antidiabetic mechanism of several active compounds obtained from orchids. Publication regarding orchid plant for diabetes were found in databases such as PubMed, Google Scholar, Wiley, Science Direct, Medline, Scopus, and Springer. Keywords used in this study were “orchid”, “diabetes”, “hyperglycemia”, “compound” and “herbal”. Out of the 447 collected articles (published in the period between 2011 and 2022), 416 were excluded due to non-relevant studies. There were 31 eligible studies included in this article. In conclusion, the antidiabetic mechanisms of the orchid extracts were as antioxidant, anti-inflammatory and anti-glycation agents, increasing insulin action, influencing lipid metabolism, and inhibiting α‑amylase and α‑glucosidase activity.
Stacking Analysis on the Application of the RADEC Model to the Creativity of Fifth Grade Elementary School Students on Water Cycle Material
Authors: Nurliana Nurliana , Sukmawati Wati
Published: August 2023

This study uses stacking analysis to analyze the application of the RADEC model (Read, Answer, Discuss, Explain, Create) to students' creativity in the water cycle material. This research is quantitative experimental research. The research subjects were fifth-grade elementary school students for the 2022/2023 school year, totaling 21 students. The research instrument was a creative attitude scale of 22 statements given before and after learning. The data obtained will be processed using the RASCH model through stacking analysis with the Winstep application. The results showed a change in students' creativity after the RADEC model was applied by 24% in the very good category and 76% in the fairly good category. This study's results prove that applying the RADEC model can increase students' creativity in the water cycle material.
Implementation of Android-Based Learning Media on Temperature and Heat Materials to Enhance Student Motivation and Learning Outcomes in Senior High Schools
Authors: Ntobuo Nova Elysia , Amali Lanto Ningrayati , Amali Lanto Mohamad Kamil , Katili Nancy
Published: August 2023

This study aims to enhance the motivation and learning outcomes of high school students at SMA Negeri 7 Gorontalo for the 2022/2023 Academic Year through implementing android-based learning media on temperature and heat materials. The research method is a quasi-experimental design with a one-group pretest-posttest research design. The research sample consisted of 3 classes: class X IPA 2 as the experiment class and class X IPA 3, and X IPA 4 as a replica class. This research begins with preparing learning tools to implement learning media based on Android material on temperature and heat. The results of the validation show that the learning tools are valid and can be used in the learning process. Implementing the learning process in this study is in the very good category. It can increase student motivation and learning outcomes, where the N-Gain scores for the experimental and replica classes are in the high category.
Pdf-Based Digital Comic Innovation Class V Human Respiratory System Material
Authors: Rahayuningsih Hasanah Febriyanni , Setiawan Deni
Published: August 2023

This research is motivated by the limitations of learning media in science learning content, so students need help understanding the material. This study aims to examine the feasibility and test the effectiveness of PDF-based digital comic media material on the human respiratory system. This type of research is Research and Development (R&D) with the Borg and Gall development model. The subjects of this study were fifth-grade students at SD Negeri 2 Pagersari with 36 students. Data collection techniques using observation, interviews, documentation, questionnaires, and tests. Data analysis techniques use product feasibility and initial and final data analysis (t-test and N-gain test). The research results show that; (1) it is appropriate to use the percentage of material experts and media experts who get percentages of 87% and 100%, as well as teacher and student responses of 97% and 93%; (2) it is effective in increasing student learning outcomes with the results of the t-test showing a significance value (Sig.) of the variable results of the Pretest and Posttest in class V SD Negeri 2 Pagersari is 0.001, so H0 is rejected. At the same time, the results of the N-gain test analysis showed 64.526 with the medium criteria category. This study concludes that PDF-based digital comic media has proven to be feasible and effective as a learning medium and can improve science learning outcomes on the material of the human respiratory system for class V SD Negeri 2 Pagersari.
Thinning on the Growth of Red Jabon Trees (Anthocephallus Macrophyllus) in the Industrial Plantation Forest Area
Authors: Sandalayuk Daud , Masrukhin  , Djabar Murni , Ruruh Alexander , Ernikawati
Published: August 2023

This study aims to observe the growth of red jabon (Anthocephalus macrophyllus) plants at various thinning intensities. Red jabon is a native Indonesian plant species that have the potential to develop forest plantations and reforestation ex-mining land. The research measured stem diameter and plant height at each thinning intensity. The study results are expected to provide information on the potential of red jabon cultivation and become a recommendation for red jabon wood farmers to improve the quality of company and farmer income. This research is expected to contribute to the development of thinning activities in improving the quality of red jabon tree stands, as well as providing a better understanding of this plant's cultivation and potential benefits. The thinning intensity applied 6 months the growth of Red Jabon trees in the Industrial Plantation Forest Area of PT. Global Citra Lestari showed a significant effect on stem diameter increment, 40% intensity treatment has a promising potential to enhance both stem diameter and height growth.
Development of an E-Book Based on STEM-Integrated Creative Problem Solving on Environmental Change Material to Improve Students’ Critical Thinking and Creative Thinking
Authors: Sukma Izza Melati , Marianti Aditya , Ellianawati
Published: August 2023

Critical and creative thinking skills are very important in the 21st century. The creative problem-solving learning model and the STEM approach are suitable for training critical and creative thinking skills in learning. This study aims to: 1) analyze the need for an e-book based on creative problem solving integrated with STEM, hereinafter referred to as BOTIPOSTEM and 2) analyze the eligibility of BOTIPOSTEM. This type of research is research and development (R&D) using the ADDIE model. Research data were obtained through interviews, questionnaires, validation sheets, and readability sheets. The data were analyzed descriptively quantitatively and using Aiken's V. The results showed that: 1) the development of BOTIPOSTEM is in the very needed category based on the teacher's response; 2) BOTIPOSTEM obtained an average Aiken score of 0.96 by material experts and 0.92 by media experts, the percentage of readability obtained an average score of 96% by teachers and 93% by students. Data analysis shows that BOTIPOSTEM has a high level of validity and readability. Thus it can be concluded that BOTIPOSTEM is very much needed and eligible to used in learning to train students' critical and creative thinking skills at school.
Learning System with Digital Literacy Based on Guided Inquiry Integrated Flipped Classroom Using Discord Application on Colloid
Authors: Handri Silvi , Mawardi Mawardi , Aini Syamsi , Nizar Umar Kalmar
Published: August 2023

This research aims to produce an integrated flipped classroom learning system based on guided inquiry using Discord application on colloid material for first year students using the Plomp development model developed by Tjeerd Plomp. The research instrument used a validation sheet filled in by 5 UNP chemistry lecturers, an interview sheet for assessment at the one-to-one evaluation stage which contained several questions with answers in the form of explanations from 3 students, a practicality sheet filled out by 9 students then content validity and constructs were analyzed using Aiken's V scale, and practicality was analyzed using practical percent. The results of the analysis of the content and construct validity data obtained were stated to be valid with a value of V = 0.84 and 0.91, as well as the results of the practicality test data analysis obtained a P value (%) of 93 in the very practical category. So that an integrated learning system is produced, flipped classroom based on guided inquiry using the Discord application on colloidal material which is used as an alternative method in the learning process in lectures.
Methanol Extract Alstonia scholaris L. R. Br as Hepatoprotective Mice (Mus musculus) Infected with Plasmodium berghei ANKA Strains
Authors: Kaihena Martha , Nindatu Maria , Ukratalo Abdul Mahid
Published: August 2023

Alstonia scholaris L. R. Br is one of the traditional plants that contain natural antioxidant compounds which are thought to be able to repair damage to the liver cells of mice (Mus musculus) infected with Plasmodium berghei strain ANKA. This study aimed to determine the effect of methanol extract of Alstonia scholaris L. R. Br stem bark on levels of SGPT enzymes and liver cells of mice (Mus musculus) infected with Plasmodium berghei strain ANKA. Mice with a body weight of 20-30 g were infected with Plasmodium berghei as much as 0.1 ml per head and left until the percentage of parasitemia reached 1-5%. Then mice (Mus musculus) were given methanol extract of Alstonia scholaris L. R. Br stem bark at doses of 1, 10, 100, and 200 mg/kg BW for 4 consecutive days. After that, surgery was performed to take blood to observe SGPT enzyme levels and mice liver cells to be prepared with Hematoxylin Eosin (HE) staining. The results of ANOVA showed that the methanol extract of Alstonia scholaris L. R. Br stems bark doses of 1 mg/kg BW, 10 mg/kg BW, 100 mg/kg BW and 200 mg/kg BW could reduce SGPT enzyme levels and repair damage to the liver cells of mice infected with Plasmodium berghei ANKA strains
Mathematical Connection Communication Learning Model and Information Technology for Students
Authors: Hardi Hardi
Published: August 2023

One of the successes of student learning outcomes depends on the way of communication between students and teachers using information technology media, combined with learning mathematical connections through communication will produce new innovations. The purpose of this research is to find out the Mathematical Connection Communication Learning Model and Information Technology for Students. This research method Analysis method of this research was analyzed using a quantitative method approach where the analysis used was descriptive statistics and hypothesis testing with partial least squares (PLS). The sources of information were 30 students majoring in mathematics. The results of this study increase the value of the Mathematical Connection Communication Learning Model and the Use of Information Technology will increase Student Learning Outcomes both in terms of comprehensive understanding abilities, critical and analytical thinking skills and the ability to be creative and innovative
Dificuldades de aprendizagem em Trigonometria no Triângulo Retângulo, segundo os professores
Authors: SILVA CLAUDIO LIMA DA , SILVA ANA KELY MARTINS DA , Santos Maria de Lourdes Silva
Published: August 2023

Este trabalho apresenta os resultados de uma pesquisa que buscou responder a seguinte
problemática: quais dificuldades apresentadas pelos alunos do 2º ano do Ensino Médio na
aprendizagem de trigonometria no triângulo retângulo, segundo os professores? Para tanto, teve
como objetivo realizar um diagnóstico do processo de ensino e aprendizagem de trigonometria
no triângulo retângulo, no 2º ano do Ensino Médio, a partir da opinião de professores de
matemática. As informações foram produzidas nos meses de abril e maio de 2022, por meio da
consulta a 53 da rede pública de ensino do Estado do Pará, mediante a aplicação de um
questionário via google forms. A análise das informações produzidas ocorreu de forma
qualitativa, a partir das respostas produzidas pelos professores e por meio da construção tabelas
relativas a cada uma das questões do instrumento. Os resultados indicam que, segundo a
amostra de professores as maiores dificuldades dos alunos nas aulas de matemáticas são
inerentes a compreensão dos conceitos matemáticos e a resolução de problemas. Constatamos
que maioria dos assuntos relacionados ao conteúdo em tela apresentam uma dissociação da
realidade do aluno, e que os professores raramente abordam o contexto histórico dos conteúdos.
Concluímos que se faz necessário algumas mudanças na prática docente, visando superar as
práticas tradicionais de ensino; e mudança na concepção de avaliação da aprendizagem,
buscando superar o seu aspecto classificatório.
Palavras-chave: Dificuldades de aprendizagem. Ensino de Matemática. Trigonometria no
Triângulo Retângulo.
EDUCAÇÃO E TRANSFORMAÇÃO EM TEMPO DE CONTEMPORANEIDADE
Authors: Pereira Alvaro Itauna Schalcher , Pereira Alvimar de Jesus Schalcher , Mason Ana Paula Uliana , Pinheiro Brenda da Silva , Lima Carla da Conceição de , Acker Carmine Inês , Guedes Clecilma Monteiro , Sousa Danilo Sales de , Xavier Drielly de Brito , Andrade Emanuel Adeilton de Oliveira , Silva Gabriel Martins , Oliveira Giulia Loreto Lovo de , Jordão Gustavo Rodrigues , Costa Iracema Silva dos Santos , Guimarães João Pedro Quaresma , Santos José Carlos dos , Dutra Jose Weliton Aguiar , Simão Leandro Batista , Bonifácio Ligiane Pessoa dos Santos , Costa Luciana Campos da , Silva Manassés dos Santos , Rubem Marcella Soares , Andrade Maria Aldení de Oliveira , Fontes Maurício de Moraes , Legal Mirtha Lucia , Lima Reinaldo Feio , Tristoni Rejane Hauch Pinto , Andrade Roniely Araújo Balacol , Souza Sílvia Cristina Ribeiro de , Rocha Thais Rios da , Barreira Vilma , Miliolli Vitória Gabrielle
Published: August 2023

A educação é um dos principais pilares para o desenvolvimento social e econômico de uma nação. É por meio dela que se promove o acesso ao conhecimento e oportunidades para todas as pessoas, independentemente de sua origem ou condição social. A tecnologia, por sua vez, vem transformando a forma como aprendemos e ensinamos, permitindo uma maior inclusão de pessoas em diferentes níveis educacionais.
LABORATÓRIO IMPROVISADO: UM RECURSO ADICIONAL PARA O ENSINO DE QUÍMICA EM SALA DE AULA.
Authors: MOREIRA LUCIVALDO COSTA
Published: August 2023

Não é de se estranhar que nossos alunos estão cada vez mais envolvidos tecnologicamente, munidos de diversos recursos digitais, o que representa uma significativa atratividade, conectando tudo e todos, numa explosão de informações que precisa cada vez mais ser tratadas para que se transformem no conhecimento propriamente dito. É perceptível que algumas metodologias de ensino tão perdendo “terreno”, onde o discente, inconscientemente, devido sua atitude e desinteresse, tem exigido novas formas de conhecer, formas essas providas de praticidade, inovações atreladas ao contexto moderno, buscando uma educação mais dinâmica e abrangente, em consonância com as novas tendências de uma educação integradora. Neste contexto, necessita-se reformulações na prática pedagógica, outras formas de construção do saber científico, daí, busca-se por meio deste trabalho mostrar um outro horizonte, com um embasamento mais prático, técnico, improvisado, articulado e realista, abandonando as velhas práticas pedagógicas tradicionais centralizadoras. Tem-se por finalidade a apresentação e discussão da forma como a Experimentação no Ensino de Química têm sido aplicadas nas aulas, as dificuldades na implantação como metodologia de ensino, bem como as vantagens e desvantagens de seu uso, dependendo do tipo de abordagem, da formação de docentes e outros fatores.
Solvibility of the Kahn-Hillard model in Quasi-Sobolev space
Authors: Jawad Kadhim Tahir
Published: August 2023

In this paper, a theoretical investigation of the Kahn-Hillard Model In Quasi-Sobolev Space is fulfilled by constructing a smooth space of a Kahn-Hillard Model in a bounded domain with a smooth boundary.
Acute appendicitis in children: A series of 75 cases in the pediatric surgery unit in the general surgery department at Ignace Deen National Hospital
Authors: Guirassy Mariama II  , Diawara Mohamed Albert  , Keita Doubany Mariame  , Camara Mama Aissata  , Toure Balla Moussa  , Camara Soriba Naby
Published: August 2023

Introduction: Acute appendicitis is an acute inflammation of the vermicular appendix. The objective of this study was to describe the clinical and therapeutic aspects of acute appendicitis in children in the pediatric surgery unit in the general surgery department. Material and methods: This was a descriptive prospective study lasting one year from January 1, 2022 to December 31, 2022 carried out in the pediatric surgery unit in the general surgery department at the hospital. National Ignatius Deen. Results: We collected 75 cases, i.e. a frequency of 37.5% compared to all the digestive surgical pathologies operated on. The most affected age group was 11-15 years or 46.66%. The female sex was predominant at 60% with a sex ratio of 0.78. Abdominal pain localized to the FID was observed in all patients, i.e. 100%. The treatment was essentially surgical under general anesthesia with the main approach: an incision at the Mac Burney point. The latero-caecal position was the most observed at 76%. The postoperative course was simple in 86.67% of patients and complicated in 13.33% of patients. Conclusion: Acute appendicitis is a frequent reason for consultation in the pediatric surgery unit.
A review on recent advantages and evaluation of microparticles and their applications
Authors: Vinayak A. Katekar  , Prafful P. Kothari  , Aarti A. Nahar  , Pooja A. Salve  , Harsha H. Shendurkar  , Shruti A. Adhau
Published: August 2023

Microparticles are free spherical dust between 1 and 1000 microns made of synthetic, non-biodegradable, and non-biodegradable polymers. There are two types of microparticles: microcapsules and micro matrix. The main types of microparticles are magnetic microparticles, polymer microparticles, bio-adhesive microparticles, biodegradable polymer microparticles, synthetic polymer microparticles, floating microparticles, and radioactive microparticles. The advantage of microcarriers over nanoparticles is that they do not cross the 100 nm interstitium during lymphatic transport and therefore act locally. Toxic substances can be solidified in the form of micro-encapsulated and dried particles. Moreover, methods to characterize numerous physicochemical parameters like drug release, thermal properties, and particle size are introduced, along with new tests like in vitro leaching tests and floating tests.
Molecular identification of Pseudomonas aeruginosa and antibiotic resistance testing
Authors: Enoc Nicolás Varela-Rodríguez  , Jackeline Lizzeta Arvizu-Gómez  , Abril Bernardette Martínez-Rizo  , Christian González-Reyes
Published: August 2023

Pseudomonas aeruginosa is a Gram-negative bacillus considered an opportunistic pathogen, usually associated with nosocomial infections in immunocompromised patients. Among the infections caused, the most frequent are urinary tract infections, wound infections, pneumonia, and bacteremia. It has intrinsic and acquired resistance to antibiotics, due to the low permeability of its outer membrane, the overexpression of efflux pumps, and the production of enzymes that degrade the antibiotic. In this study, 61 samples of P. aeruginosa collected from the General Hospital “Dr. Aquiles Calles Ramírez" from the city of Tepic, which were phenotypically identified using the Vitek2 automated system. Subsequently, they were molecularly identified with the polymerase chain reaction technique, targeting the gyrB gene that codes for the B subunit of DNA gyrase. In 60 of the samples, amplification of the gyrB gene was obtained and only one, no amplification was observed. The results showed that infections caused by P. aeruginosa are more frequent in male patients, in age range of 41-60 years. Urine culture being the origin of the sample that most predominated. The sensitivity-resistance analysis to antibiotics showed that most of the strains are resistant to β-lactams, except for meropenem, which presented a high sensitivity in most of the strains, as well as in the case of ciprofloxacin, amikacin, and gentamicin.
Prevalence and colonization of fungi in dried food (garri) obtained from Ikere-Ekiti
Authors: J. A. OYEBODE  , W. A. OYELADE  , O. A. JEJE
Published: August 2023

Garri is consumed by several millions of people in the West African sub-region and in Nigeria in particular, regardless of ethnicity and socio-economic class. However, production and handling methods have not been standardized resulting in garri product with varying mycological contamination. The objective of this study was to assess the mycological safety and mycological contamination of garri marketed in Ikere-Ekiti, Ekiti State. A total of eight (8) samples of garri displayed in the open at Ikere-Ekiti markets were used for this study. The samples were collected with sterile polythene bags adopting standard procedures and transported to the laboratory for analysis. The result of this study clearly showed fungal contamination resulting from its display in the open market, Aspergillus spp. and Mucor sp. had the highest frequency of occurrence and Aspergillus spp. was the fungi most frequently isolated. Other fungi species isolated in the garri samples were Absidia spp., Botrytis spp., Penicillium spp. and Rhizopus spp. Since this product harbor arrays of fungi, strategy to antagonize their growth and survival in this commodity in order to neutralize the potential of these organisms serving as agents of food borne diseases should be adopted.
Chemical composition and antioxidant activity of Physalis angulata AH-ZE
Authors: Ahmed Zughair Jalab  , Zeina Thamer A AL-RUFAYE
Published: August 2023

Physalis angulata AH-ZE1 form the family Solanaceae. Physalis angulata is considered a plant medically effective for the treatment of many diseases. The ability of Physalis to remove the reactive oxygen species ROS, strengthen the body's antioxidant system constitutes its defense mechanism. The results of the Gas Chromatography–Mass Spectrometry ( GC-MS) analysis showed that the sample Physalis angulata isolate AH-ZE1 contained twenty-four effective compounds that have a lot of medicinal efficacy. Antioxidant content of 94% at the concentration of 140 µg / ml of the extract, and the lowest percentage of antioxidant 42% at the concentration of 20 µg / ml is as a result of the high percentage of phenolic compounds in the plant extract, which is directly proportional to the percentage of antioxidants.
Socio-demographic profiles and nurse practice environment among Filipino Staff Nurses
Authors: Fritz Gerald V. Jabonete  , Donna Mae C. Fontanilla  , Arleen E. Monterde  , Cristina T. Rebollido  , Kristine P. Vidad  , Paul O. Dayandayan  , Amparo I. Lim  , Mila C. Herrera  , Alvin M. Hernandez  , Jessica M. Dela Cruz  , Melba C. Palcon  , Marijane V. Anacito  , Henry A. Apolinar
Published: August 2023

Background: COVID-19 is an unprecedented health crisis that has strongly shaken the whole world. There is a paucity of studies comparing the perception of the nurse practice environment in the Philippines. Aim: To determine Filipino nurses' practice environment and compare the respondents' perceptions according to socio-demographic profiles. Design: This study utilized a descriptive-comparative design, using the Practice Environment Survey- Nurse Work Index (PES-NWI). Results: Staff nurses perceived the most favorable perception of Nurse Manager Ability, Leadership, and Support of Nurses (x=3.3, SD=0.63), while, staffing and resources adequacy (x=2.8, SD=.71) were viewed as less favorable. The participants agree they experienced a favorable nurse practice environment (x=3.1, SD=0.59). There is no significant difference in the perception of the practice environment when grouped according to age (H=3.87, p =0.14), sex (U = 9855.50, z = -1.54, p =.125), civil status (H =.31, p =.96). educational attainment (H =2.58, p =.275) and committee involvement (U = 5913.50, z= -1.54, p =.123). A significant difference was observed when grouped according to the length of nursing practice (H =11.48, p =.043), nurse level (U = 10358.00, z= -2.52, p =.012), and area of assignment (H = 25.62, p =.002). Conclusion: The study demonstrates that the practice environment of Filipino nurses varied accordingly. Length of nursing practice, nurse level, and area of assignment impact nurses' perceptions of their practice environment. Recommendation: It is recommended to optimize the practice environment by providing continuous education and training programs, policies and work environments, and ensuring adequate staffing levels.
Root canal sealer extrusion: When to use surgical and non-surgical treatment approach
Authors: Putu Mariati Kaman Dewi
Published: August 2023

Extrusion of root canal sealers may cause irritation to the periapical tissues and lead to pain, swelling and paresthesia. An extensive search of the endodontic literature was made to identify publications related to extrusion of root canal sealer and the management in surgical and non-surgical approach. This review aims to gain an understanding of the management of root canal sealer extrusion. In conclusion, cases of root canal sealer extrusion can be treated both surgical and non-surgical. Surgical treatment should be decided on only in association with clinical symptoms or with radiographic evidence of increasing periapical lesion. Wait and see and anti-inflammatory treatment considered to be the best choice in treating extruded root canal sealer with no apical symptoms.
Challenges to employees in the context of digital transformation
Authors: Yen Thi Doan
Published: August 2023

With the foundation of digital technology and the integration of smart technologies to optimize production processes and methods, digital transformation is opening up many opportunities but also many challenges for Vietnam's workforce. Vietnam is facing with many challenges in the process of promoting digital transformation due to the arising of unprecedented new relationships, dealing with the consequences when traditional relationships may be disrupted. That changes the organizational structure, internal relationships as well as gives rise to new relationships between actors in the economy. On the other hand, while human resources for digital transformation have not been able to respond to changes in market demand, there is a risk of losing traditional jobs when workers do not receive advanced training in time to keep up with the requirement on the skills in the digital nation. The article focuses on analyzing and clarifying challenges for employees in the context of digital transformation. Thereby, the article mentioned solutions to support employees to adapt to the change that the digital transformation context creates.
Magnetic attachment for complete overdenture: A case report
Authors: Utari Kresnoadi  , Muhammad Genadi Askandar  , Pramesti Prirastika
Published: August 2023

Background: Overdenture is a partial or complete denture that has support from natural tooth roots that have been treated with endodontic treatment. Retain the remaining teeth prevent resorption of alveolar ridge. An overdenture with a magnetic attachment can be used to increase the retention of the denture. The magnets transfer the occlusal load to the bone through the periodontal ligament of retained roots that are attached with remaining root structure Objectives: This case report is aimed to report the step-by-step treatment of complete denture mandibula and complete overdenture maxilla with magnetic attachment retained design Case Report: A 62-year-old female visited the Prosthodontic Clinic of Dentistry Faculty, Airlangga University with a chief complaint of difficulty in eating. Clinical examination shown partial edentulous in the mandibula. The remaining teeth were 18, 14, 23, 25 and 43. Case management: After thorough observation from the clinical presentation and radiographic, magnetic attachment was planned on 14 in order to retain the remaining tooth and improving retention and stabilization of the maxillary denture. Conclusion: Magnetic maxilla overdenture is able to provide support, stability and retention.
Lecturer’s transformational leadership and student’s attitude outcome: Organizational effectiveness in higher education context
Authors: I Gusti Ayu Manuati Dewi  , Ni Wayan Sri Suprapti  , Putu Saroyini Piartrini  , Ni Made Dwi Puspitawati
Published: August 2023

Higher education institutions are the witness of organizational perception shifting from "student" to "customer". Therefore, an effective lecturer's leadership is critically needed. This study aims at analyzing the role of a lecturer's transformational leadership and class climate in influencing student’s attitude in the higher education context. The samples of this study were 150 students in the big five faculty at Udayana University, Bali, Indonesia, namely the Faculty of Humanities, Medicine, Engineering, Law, and Economics and Business determined by quota sampling. The data collection method used was a self-administered questionnaire. The technique of analysis implemented for testing the hypotheses was Structural Equation Modeling-Partial Least Square (SEM-PLS). The findings show that for direct effect, transformational leadership of the lecture has a positive and significant effect on objective commitment, learning motivation, and learning satisfaction of students; class climate has a positive and significant influence on learning satisfaction of students; and learning motivation has a positive and significant effect on student's objective commitment. Meanwhile, learning motivation has no impact on learning satisfaction. The results of the indirect effect show that learning motivation partially mediate the effect of lecturer’s transformational leadership on student’s objective commitment. Meanwhile, the learning motivation of students does not emerge as a mediator of the effect of transformational leadership on learning satisfaction. It is for the lecturers to develop and improve student learning motivation through their leadership which furtherly affects students' objective commitment in the endeavor to achieve high academic performance.
Situation of lecturers’ income structure of financially autonomous public universities in Vietnam
Authors: Hong Thi Nguyen  , Hong Nhung Thi Ngo  , Thieu Van Pham
Published: August 2023

Salary and income is always a matter of great significance to universities and to the lecturer themselves. Improving and raising the income of lecturers is important, but ensuring the satisfaction of lecturers' income is even more meaningful when motivating lecturers to work. In order to ensure that the teaching staff of universities are always stable and have high working efficiency, the Rectors of public universities need to pay special attention to the salary and income structure. Currently, public universities are gradually implementing the policy of autonomy and self-responsibility, including financial autonomy. This means that public universities must be proactive in generating revenue, mobilizing various sources, and ensuring a reasonable salary and income for faculty and staff. On the basis of finding out the feelings of 345 lecturers working at financially autonomous public universities in Vietnam, the article has reflected the current situation of income structure, satisfaction with the income structure of lecturers. Thereby, the article has mentioned some recommendations for public universities to improve the income structure for lecturers.
Formulation and evaluation of valsartan solid dispersion for improvement of dissolution profile
Authors: Prapti Desai  , Nitin Deshmukh  , Apeksha Rajguru  , Rohini Khedkar  , Rahul Jadhav
Published: August 2023

In terms of physicochemical factors, solubility is the most crucial to medication absorption and therapeutic efficacy. Bioavailability is low because the medicine is poorly soluble in water and is absorbed poorly in aqueous GIT fluid. In this research, a solid dispersion version of the hypertension drug valsartan was developed to improve its bioavailability and blood pressure-lowering effects. The solubility of Valsartan is improved by using the solid dispersion (kneading method) technique using Soluplus as a carrier (also act as taste masking agent). They were distinguished from one another based on studies examining solubility, in vitro dissolution, dissolving efficiency, and stability. X-ray diffraction, FT-IR spectroscopy, and differential scanning Calorimetry were used to investigate the solid state properties of dispersions (XRD). A 1:1 medication-to-polymer solid dispersion showed 97.77% drug release after 30 minutes. FTIR, DSC, and XRD analyses of solid dispersions all corroborated their formation. A DSC study shown that under accelerated climate settings, kneaded solid dispersion remained stable for 30 days longer than other solid dispersions.
Pharmaceutical medicine traceability: An overview of global compliance
Authors: Girish Babu Botta
Published: August 2023

Every human being has a fundamental right to access to healthcare. It is the duty of the government to provide its citizens with high-quality infrastructure and healthcare services. Government agencies and the healthcare sector have been working to reduce the negative effects that bogus drugs have on people's health for the past few decades. According to the World Health Organization, 4 out of 10 medicines in emerging and underdeveloped nations are either fraudulent or may be contaminated. The international economy suffers from counterfeit drug costs in the billions of dollars, and organizations are forced to spend less on research and development (R&D). The biggest difficulty facing the government and regulatory agencies is preventing the entry of fake medications into the supply chain. The government and regulatory bodies are currently creating strict regulations to forbid criminals and medicine counterfeiters from selling phony drugs in markets. To offer patients with safe and effective medications, the healthcare business needs strict laws and secure systems. The FDA has released a 10-year implementation roadmap for drug traceability in the US. The Healthcare Distribution Alliance (HDA) has additionally specified that the product packaging hierarchy print multiple barcodes and human readable data. The FDA is taking part in a pilot initiative with major prescription medicine producers and wholesalers to deploy blockchain technology in an open-source, interoperable digital network for ensuring the transfer of digital traceability data between licensed business partners.
Palavras que sangram
Authors: Silva Carlos Wender Sousa , Geraldes Elen Cristina
Published: August 2023

Este artigo pretende discutir alguns dos desdobramentos e respostas da literatura brasileira contemporânea diante da realidade feminicida brasileira. Neste sentido, a partir do romance Mulheres empilhadas (2019), de Patrícia Melo, é discutido de que maneira a misoginia e o machismo podem se traduzir em violência contra a mulher. Para isso, parte-se da noção de homo violens (DANDOUN, 1998) e de um protótipo do termo violência (MICHAUD, 1989) como tentativa de explicar alguns dos desencadeamentos dessa categoria. A partir de Pierre Bourdieu (2019), aponta-se a assimetria da relação entre homens e mulheres como um dos elementos fundamentais à produção de violências contra a mulher e como a violência simbólica não deve ser compreendida em oposição à violência concreta. Analisa-se, então, alguns elementos da estrutura sociopolítica e histórica patriarcal brasileira responsáveis pelas diversas manifestações de violência contra a mulher que perpassam os espaços público e privado. Consequentemente, discute-se de que forma essa estrutura de silenciamento e de opressão do corpo e da voz feminina se dá nessa narrativa literária. O objetivo deste artigo é, assim, abordar algumas das possibilidades de leitura a respeito dessa temática e apontar a literatura contemporânea como uma abertura para compreender esse quadro de violência sistêmica contra a mulher.
[Recebido em: 18 abr. 2023 – Aceito em: 10 jun. 2023]
Dona Sol
Authors: Siqueira Ana Marcia Alves
Published: August 2023

A novela Fascinação, de Hélia Correia, questiona a permanência da opressão social e religiosa relativa ao comportamento feminino a partir do diálogo com as histórias sobre a Dama Pé de Cabra, personagem singular e fabulosa do relato linhagista medieval acerca de D. Diogo Lopes de Haro, registrado no Livro de Linhagens do Conde D. Pedro (1344), e também do conto homônimo de Alexandre Herculano, publicado na coletânea Lendas e Narrativas em 1851. A sensível história da filha da Dama e de D. Diogo, D. Sol, criatura híbrida fruto de um entrelugar produzido pelo sincretismo religioso, possibilita que a narradora coloque em debate questões instigantes sobre a condição feminina ainda presentes no contexto contemporâneo: a opressão exercida pelas expectativas sociais e interdições morais, o fascínio despertado pelo desejo e pela transgressão, assim como os desafios advindos da condição de diferente. Esta análise alia-se à perspectiva das relações dialógicas entre textos e contextos para delinear preocupações estéticas, simbólicas e socioculturais, apoiando-se em estudos de Praz (1996) sobre o fascínio despertado pela beleza nomeada meduseia em razão do perigo subversivo atribuído a estas figuras femininas, de Bourdieu (2007) acerca da opressão simbólica exercida pela sociedade sobre os indivíduos, de Hutcheon (1991) relativos à atribuição de voz aos excluídos em narrativas contemporâneas e de Reis (2019) a respeito da refiguração de personagens.
[Recebido em: 24 mar. 2023 – Aceito em: 10 jun. 2023]