Mathematical Sciences Research Articles

UNO's Sustainable Development Goals in academic courses: a pilot analysis on the programs of an Italian university.

Universities are critical in educating tomorrow's citizens and achieving the Sustainable Development Goals of the United Nations Organization. The aim of this study was to investigate the integration of these goals in the curricula of an Italian university. Cross-sectional study. In February 2021, as part of the annual Syllabus preparation for each course, the teaching staffs at the University of Udine (Italy) were asked to complete an additional section in which they could indicate up to three Sustainable Development Goals for their courses. Descriptive statistics, Chi-square test and logistic regression were performed to determine whether the professors' sex, age, or department affected the likelihood of mentioning Sustainable Development Goals. In 723 courses, 360/1040 professors 59% male, mean age 53 years (range 30-73), mentioned one (29%), two (23%), or three (31%) Sustainable Development Goals. No Sustainable Development Goals were mentioned in 16% of courses, the majority of which were from the Mathematical, Computer and Physical Sciences Department (58%). The top six Sustainable Development Goals quoted were: Good health and well-being (35%), Responsible consumption and production (22%), Quality education (17%), Industry, innovation and infrastructure (13%), Gender equality (13%), Decent work and economic growth (13%). The least frequently mentioned Goal was Life below water (1%). Women (p<0.0001) and senior professors (p=0.0148) were more likely to consider at least one of the Sustainable Development Goals, while Mathematical, Computer and Physical Sciences Department showed a negative correlation (p<0.0001). Gaps were identified with respect to specific Sustainable Development Goals, but discrepancies between departments may indicate deficits in respondent awareness. A transparent description of the Sustainable Development Goals in courses is recommended, to increase students' and university's engagement in sustainability.

Physicochemical Analysis Using Gas Chromatogrphy Mass Spectrophotometer (GCMS) on the Quality of Citronella Oil (Cymbopogon nardus L.)

Indonesia is known as a country that has biological forests which can be used as a source of essential oils. The levels of chemical compounds that make up citronella oil are not fixed and depend on several factors such as distillation. Distillation using traditional methods is a production process that has been identical for generations used by farmers, usually this distillation uses wood fuel and takes 5 hours. Meanwhile, distillation with electrical energy only takes 4-5 hours. This research was conducted at the Laboratory of Chemical Analysis, Faculty of Mathematics and Natural Sciences, Syiah Kuala University, Banda Aceh. This research was conducted from January 2023 to June 2023. The results showed that distillation using the traditional method had 15 chemical compounds and consisted of 3 active ingredients, namely citronellal (42.48%), geraniol (17.60%) and citronellol ( 13.67%) while the results of the distillation by the electric method have 21 compounds and also consist of 3 active ingredient components, namely citronellal (40.87%), geraniol (16.53%) and citronellol (17.68%).

Preface

The 4th Edition of the International Altamira Materials and Devices Encounter (EMDA 4) was successfully held in hybrid format, on November 16th and 17th, 2023 with 196 participants on-site at CICATA Altamira, and ca. 180 participants online. The Scientific Program included 13 invited conferences from around the globe, with researchers from Malaysia, India, Azerbaijan, Romania, United Kingdom, Morocco, USA, Honduras, Mexico, Colombia giving their talks in four sessions (Semiconductors, Modelling, Materials and Engineering and Physical Sciences).Six Workshops were imparted: Elemental Analysis by X-ray Fluorescence, Production of Biobatteries from Plants, Creation of Metamaterials by 3D Printing, Introduction to AI for Materials Science, Electrochemical Methods of Analysis, ANSYS Mechanic Introductory Training. Graduate and undergraduate students benefited from these Workshops, which were also transmitted by YouTube live as well as the rest of the activities of the Conference.https://youtube.com/playlist?list=PL9d20U28c14xN3a1uvGW8-Tbrulu8-HOD&si=-X2PIPFe5gMoh32XA hybrid poster session with 46 posters showing the groundbreaking results of researchers and students was done. The submissions provided the public with a broad view of physics, semiconductors, materials, batteries, engineering applications, mathematical and computational science methods, novel concepts, ideas, and tools. The best posters were judged by a multidisciplinary jury, in two categories: Materials and Devices. The list of winners is depicted in this book.There were 43 conference paper submissions, and after a strict, double-blinded peer review process, 23 papers were selected by the Editor to be published in this volume. A total of 11 reviewers participated in this conference, who provided their professional and objective feedback to the authors to ensure the quality of the manuscripts according to the IOP Editorial’s Guidelines. The accepted papers are grouped into three general topics, i.e. Engineering Applications, Batteries/Supercapacitors and Semiconductors.The papers entitled “nS1-xSex alloy deposition by RF magnetron co-sputtering for potential photoelectrochemical applications”, “Wide-angle microwave attenuation response of a multilevel metastructure based on rGO/Fe3O4/PPy: an in-silicon study”, “Wastewater treatment from graphene oxide synthesis process”, “Physicochemical characterization of urban dust in Southern Tamaulipas using X-ray fluorescence”, “Delignification and characterization of Tule (Typha Dominguensis) for its potential use in the production of green concrete”, won the best materials poster and the paper entitled “Open Source electronic system with OLED screen monitoring of Plant Based Batteries”, “One-bit register based on 180nm CMOS technology”, “Optoelectronic system for measuring sugar content in citrus fruit” won the best devices poster after being reviewed by the session’s jury at the conference.A special acknowledgement is given to Instituto Politecnico Nacional through its Secretaria de Investigacion y Posgrado, from which financial support was possible to waive the fees for this event including the fees for paper publication, which was of capital importance because the highest participation was from graduate and undergraduate students.The kind sponsorship of SCM, SATELSA, and Soporte Analitico Especializado for the Conference banners and specific logistic needs, is kindly granted.Acknowledgements are also given to the Conference Staff, composed of CICATA Altamira and UV students who were the success factor of the Conference.The Organizers also grant the support from CICATA Altamira for the use of their facilities and the all the event logistics, as well as to the effort of the Scientific Program and Technical Committees, who did a great job preparing the event, contacting the Lecturers, confectioning the Program, reviewing the posters and the papers and making valuable suggestions for the authors to improve their work. We also would like to express our gratitude to the external reviewers, who kept the quality of the submitted papers and qualified the presented posters.Finally, on behalf of the Organizing Committees, we would like to express our sincere gratitude to all participants and speakers who contribute to make this event a great success.Looking forward to seeing you in 2025!Organizing Committee of EMDA 4th 2023List of Organizing Comittee, Conference Chair, Program Chair, Program Co-chairs, Steering Committee, Support Committee/Conference Staff and Organizations are available in this pdf.

Параметрическая таксономия учебных текстов

The article is aimed at considering the issue of the discursive text typology and developing a parametric model of the elementary school texts for the ontological domain by employing a corpus-based approach and methods of linguistic statistics. The research corpus of over 90,000 tokens comprises texts of 13 textbooks acknowledged in the 2 nd grade of Russian schools. The applied multifactor discriminant analysis enabled identification and validation of typological characteristics of the texts under study, offering the formula for referring educational texts to a subject domain on Philology, Mathematics, and Natural Sciences. The discriminant analysis results confirmed the hypothesis that each type of text corresponds to a parametric model, which includes six constants: the average number of words in a sentence, the average number of nouns, the average number of verbs and the average number of adjectives per sentence, local noun overlap, global argument overlap. The assessment of linguistic parameters was performed by an automatic Russian text analyzer RuLingva. The classification accuracy of the parametric model was identified as 80%, which ensures its high reliability and allows for the data obtained to be employed in linguistic expertise, as well as for in automated linguistic profiling of texts. The prospect of the research implies installation of the model in RuLingva and development of similar models for texts of other subject domains.

Development of Smart Servers for Informatics Education Program Using NDLC Method

The development of processor technology, especially Multicore Processors, has had a significant impact in various fields, including the field of higher education, one of which is the need for Virtual Private Servers for information management and their potential as a storage space for web development products. This research aims to create a Virtual Private Server in the Informatics Education program at the Faculty of Mathematics and Natural Sciences of Hamzanwadi University. It uses the Research &amp; Development (R&amp;D) method with the Network Development Life Cycle (NDLC) approach, involving six stages: Analysis, Design, Prototype Simulation, Implementation, Monitoring, and Management. Data were obtained through interviews and questionnaires, then analyzed descriptively qualitatively. The research resulted in a Virtual Private Server using Proxmox VE 7.4, Ubuntu 18.04.5 operating system, remote access via OpenSSH-Server, Control Panel AAPanel 6.8.30, Nginx 1.21.4 web server, MySQL 5.7.34 database management system, PHP 7.4, PhpMyAdmin 5.0 for web access to the database, and PureFTPd 1.1.49 as the FTP Server. Expert evaluations in the field of IT yielded a rating of 83% with the category "Highly Suitable," indicating that the Virtual Private Server product is suitable for use as a storage facility for web-based development products in the Informatics Education program at the Faculty of Mathematics and Natural Sciences, Hamzanwadi University

Integration of Mathematics Learning Strategies with The Cultivation of Islamic Teaching Values in The Context of Applicable Jurisprudence

This article aims to describe the application of several mathematical sciences in the study of jurisprudence which are included in mathematics learning strategies. This is based on the problems seen in classroom learning that the delivery of mathematics is only the delivery of theory or formulas. Even though it is sometimes linked to everyday contexts, it is still lacking in linking it to religion, especially to the science of jurisprudence which is included in the field of Islamic science. Some of the fiqh studies presented here are considered to be often related to everyday life. In detail, you can use a similar analogy. The method used is literature study research, which is sourced from related documents that are in accordance with the study. The results of this paper show that mathematics is indeed used in fiqh, so it can be used in mathematics learning strategies. Stages that can be included are mention of Allah's name, use of terms, visual illustrations, examples, insertion of verses/hadith, history, and topic networks. The study of jurisprudence that is connected to mathematics is the problem of Thaharah, prayer, Zakat, Fasting, Hajj and Faraid. All of these studies use basic knowledge in mathematics which is easy to apply.

Profile of Students' Critical Thinking Skills in 3D Module Learning Material on Gas Kinetic Theory with Inquiry Model

The increasingly difficult educational challenges and needs in today's modern world require interactive learning. The research was conducted to know students' critical thinking skills (CTS) in the kinetic gas theory material. Another goal is, as an initial observation, to develop learning methods with guided inquiry learning models assisted by android-based 3D modules in kinetic gas theory material. The research population was all class XI students at Tuban 2 Public High School in 2022/2023 as majoring in Mathematics and Natural Sciences. The research was conducted in 5 classes with the same distribution of questions and questionnaires. As secondary data, the researcher added several articles relevant to the research. The results of this study using several questions on kinetic gas theory material for class X1 were that students needed to be more able to answer each question with indicators of critical thinking. The student's obstacle in answering the questions lies in the need for more understanding of kinetic gas theory material and the not yet maximal use of the method in the current teaching and learning process. The resulting inquiry learning in the future will change the CTS of Tuban 2 Public High School students in the kinetic gas theory.

MAKER CULTURE AND MATHEMATICS CLUB – A SUCCESSFUL EXPERIENCE IN THE CLASSROOM

Introduction: The science of Mathematics, one of the oldest areas of knowledge, has the philosophy of bringing together abstract and concrete knowledge to build new know-how. This science studies numbers, magnitudes, shapes and possibilities, and maker culture emerges as a notable instrument for the student to establish the inseparable connection between theory and practice. Justification: maker culture is linked to constructivism despite learning by doing. The student learns with creativity, in teaching, in execution, in the art of continuing to learn throughout his life. The center of teaching-learning is the student who stars and writes his or her own story. Therefore, the implementation of the mathematics club in the public school was essential for achieving the objective: central to this study, which is to analyze the results of the implementation of a mathematics club through maker culture, in a state school with high school students. Medium in the second half of 2023. Methodology: The action project, mathematics club, focused on active methodologies, through maker culture (method). Entitled: maker culture and mathematics club – A pedagogical possibility for teaching and learning mathematics in high school, was developed within classrooms. Its methodology focused on observation and execution of different stages and with a qualitative focus it was possible to work on Results: more than numbers. Observation of the project, the experience as a teacher, resulted in theoretical-methodological gains and the students were able to develop a taste for learning Mathematics. Conclusion: With the Mathematics Club, maker culture can be shown as a pedagogical possibility for teaching and learning mathematics. All activities that focus on active methods allow for interactive and collaborative learning, especially with the use of digital technologies.

Karakteristik Pola Pertumbuhan Bakteri Termofilik Isolat MS-12 dari Sumber Air Padas Mudiak Sapan

The growth pattern of thermophilic bacteria can be observed through turbidity testing, representing each growth phase: lag, exponential, stationary, and death phases. To evaluate and understand the growth pattern of thermophilic bacteria, particularly MS-12 isolate from the Mudiak Sapan (MS) hot springs, it can be analyzed through Optical Density (OD) testing using a UV-Vis spectrophotometer (600 nm). The OD test is commonly employed to determine the turbidity level in a solution by measuring the light passing through the solution, proportional to the number of cells or particles within it. The testing method used in this study is descriptive with two replications. The research was conducted at the Microbiology Laboratory, Faculty of Mathematics and Natural Sciences, Padang State University on December 9, 2023. Bacteria were incubated for 12 hours at a temperature of 50ºC, and their growth was measured using a UV-Vis spectrophotometer with a wavelength of 600 nm. Turbidity measurements were taken every 2 hours during the 12-hour incubation period. The growth pattern of MS-12 bacterial isolate, as observed from the measurements, can be considered favorable. At the 2-hour measurement in the second hour, bacterial growth averaged at 0.1535 (lag phase). Measurements from the 3rd to the 8th hour reached an average of 0.8105 (exponential phase). The 9th and 10th hours exhibited a stationary phase, while the measurements in the last 2 hours indicated a death phase, signifying a decline in the bacterial growth pattern.

Pengaruh Penambahan Kombinasi Benzyl Amino Purine dan Pepton Terhadap Pertumbuhan Planlet Anggrek Cattleya sp.

Orchidaceae is one type of ornamental plant which is a leading commodity. Cattleya sp. are a potential type of orchid in terms of productivity and high economic value. Conventional Cattleya sp. cultivation is considered less effective because the number of tillers produced is very limited. Therefore an alternative Cattleya sp. cultivation is needed using plant tissue culture techniques or in vitro. The research objective is to determine the effect of the addition of the combination of BAP and peptone on the growth of orchid plantlets Cattleya sp. This experiment was conducted in the Plant Tissue Culture Laboratory of the Faculty of Mathematics and Natural Science Universitas Negeri Malang from August to November 2016. This study used a completely randomized design. The treatment was in the form of ½ MS medium added with a combination of Benzyl Amino Purine (BAP) and Peptone. The explant used was the protocorm of Cattleya sp. 1 month old with a size of ± 0.5 cm. Protocorm was inoculated as much as 10 protocorm on media treatment. The results showed that Peptone can affected the growth of Cattleya sp. plantlets. The ½ MS treatment with the addition of peptone produced the highest number of leaves and the highest plantlet height, while the ½ MS treatment without the addition of BAP and peptone produced the highest number of roots.

Partnerships for Research Innovation in the Mathematical Sciences (NSF)

Partnerships for Research Innovation in the Mathematical Sciences (NSF)

“A Schooling in Goodness”

This article considers and in the main argues for Plato’s views on education, particularly as expounded in Republic and Laws. Plato sees education primarily in terms of an induction into goodness, rather than part of the pursuit of wealth or worldly reputation. Along with his contemporaries in ancient Greece, Plato recognized that the foundations of education will be found in gymnastic and music. The reasons for this are explained and defended, taking music to include the broad work of the muses of history and the other arts as well as music in the narrow sense. A Platonic childhood education will cover all the seven liberal arts, with what we might call philosophy and theology coming later on. This view is by and large defended, though Plato’s bias towards the mathematical sciences at the expense of the empirical is criticised.

Г.Г. Дядченко и история математического образования КБР в 90-х годах XX века

The article describes the main biography milestones of Grigory Grigoryevich Dyadchenko, Candidate of Physical and Mathematical Sciences, Associate Professor, Scientific Secretary of the Institute of Informatics and Problems of Regional Management of the Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences, who made a significant contribution to the development of the system of general and additional education in Kabardino-Balkaria. Grigory Grigoryevich Dyadchenko is known not only as a lecturer at the Kabardino-Balkarian State University named after H.M. Berbekov, Kabardino-Balkarian Agro-Reclamation Institute (now Kabardino-Balkarian State Agricultural University named after V.M. Kokov), the Institute for Advanced Training of the Ministry of Education and Science of the KabardinoBalkarian Republic (later Institute of Advanced Training of KBSU), the Kabardino-Balkarian Institute of Business and the head of the school mathematical circles, whose students succeeded at the regional and federal levels in scientific and practical conferences for school children, but also at the All-Russian level as a specialist in the methodology of studying the stochastic line at school, as the main developer of the educational subject "Patterns of the surrounding world" in the experimental model of the school "Ecology and dialectics".

Improving Attitude toward Engagement in a Biology Course of Mathematics and Computer Science Students through the Active Learning Integration Approach: A Case Study in a Thai Science High School

Improving Attitude toward Engagement in a Biology Course of Mathematics and Computer Science Students through the Active Learning Integration Approach: A Case Study in a Thai Science High School

Between Pluralism and Objectivism: Reconsidering Ernst Cassirer's Teleology of Culture

abstract: This paper revisits debates on a tension in Cassirer's philosophy of culture. On the one hand, Cassirer describes a plurality of symbolic forms and claims that each needs to be assessed by its own internal standards of validity. On the other hand, he ranks the symbolic forms in terms of a developmental hierarchy and states that one form, mathematical natural science, constitutes the highest achievement of culture. In my paper, I do not seek to resolve this tension. Rather, I aim to arrive at a better understanding of how it arises, and of the different options that it presents for understanding the development of culture. I discuss three recent attempts at resolving the tension, put forward by Sebastian Luft, Samatha Matherne, and Simon Truwant, respectively. Based on a reconstruction of Cassirer's system of symbolic forms that centralizes the concept of function, I show that the most promising of these attempts, formulated by Truwant, is not successful. I then turn to Cassirer's philosophy of the cultural sciences, the implications of which for the present problem have not yet been sufficiently explored. I argue that in this context, Cassirer develops the contours of an alternative to the function-based view of cultural development. I conclude that this alternative does not resolve the tension either, but that it allows for a reconceptualization of the teleology of culture as open.

Negotiating Inherent Asymmetries of Co-Design: A Case of Integrative Elementary Mathematics and Computer Science Instruction

Collaborative design, or “co-design”, is a term that has gained popularity in educational research and design communities, including those working with K-12 educators. While more groups are identifying with and pursuing co-design, much remains to be understood about how to structure the work within given different constraints, circumstances, and resources available to different parties. We propose understanding co-design as having inherent asymmetries and that structuring co-design work patterns involves negotiation of those asymmetries. Through a case of an elementary computer science and math integration research-practice partnership, we share ways that those asymmetries are both intentionally softened and leveraged at different times.

The Potential of Cigarette Butt Extract Against Bemisia Tabaci in Tomato

Innovation used cigarette butt extract added papaya leaves and banana stem against Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) become alternative reduce synthetic pesticide application in horticultural plant. The liquid do not produce residues on plant or soil. The aim of the research is to determine the effectiveness of cigarette butt, papaya leaves and banana stems in controlling B. tabaci on tomato. The research was conducted at the Basic Chemistry Laboratory, Faculty of Mathematics and Natural Sciences, Hasanuddin University to prepare cigarette butt, nicotine maceration and nutrient content tests. Field trials were conducted at the experimental site of the Department of Plant Pests and Diseases, Faculty of Agriculture, Hasanuddin University from September to December 2022. Five types of treatment applied on tomato plants: P0 (control), P1 (cigarette butt extract + papaya leaves), P2 (cigarette butt extract), P3 (banana stem waste) and P4 (cigarette butt extract + banana stem + papaya leaves). The result showed different results of each treatment. The highest B. tabaci attacked intensity at P0 (100%) and P3 (100%) while the lowest at P4 (33.3%). The highest growth height of tomato plant showed in P4 (33.3 cm) and the lowest in P3 (28.8 cm). The highest number of tomato leaves in P4 (49.7 leaves) and the lowest in P3 (36.3 leaves). The result indicated combine extract of cigarette butts, banana stem and papaya leaves increasing plant health and able reduce the attack intensity of B. tabaci.

TRANSCENDENTALISM, NATURALISM AND ONTOLOGY

The opposition between transcendentalism and naturalism plays a key role in discussions about consciousness at the confluence of phenomenology and analytical philosophy. Associated with it is a whole range of research programs. However, the opposition between transcendentalism and naturalism in these programs is, as a rule, operational and not thematic in nature and presupposes that 1) Transcendentalism and naturalism as traditions are initially alien to each other; 2) The domain of their opposition is ontology. The article attempts to problematize these premises based on one historical circumstance. Turning to the texts of Kant, the founder of transcendental philosophy, I intend to show that transcendentalism, which was first substantiated in them, is a version of naturalistic ontology, that is, a peculiarly interpreted naturalism that identifies nature with its natural scientific model and excludes constituting subjectivity from ontology. It is built not on the naturalization of phenomenology, but on the transcendentalization of natural science. Reinterpreting the experimental method in the spirit of the Copernican turn, Kant substantiates the apodictic nature and lack of alternative to the ontology of nature by turning nature into a correlate of consciousness and strictly limiting the principles of mathematical natural science to the boundaries of the phenomenal world. As a result, the true theme of philosophy—the thing in itself and transcendental subjectivity itself—is taken beyond the boundaries of ontology. The thematization of the naturalistic origins of transcendentalism and the removal of transcendental consciousness beyond the boundaries of ontology, carried out within its framework, thus reveals the problematic nature of these premises. The article also demonstrates that, despite significant differences in the understanding of transcendental philosophy and ontology between Kant and Husserl, the identified motives—the naturalistic nature of the ontological foundation and the meta-ontological character of transcendental subjectivity—remain of fundamental importance for the founder of phenomenology. This allows us to conclude that ontology is not the original domain of confrontation between transcendentalism and naturalism and to substantiate the compatibilist thesis according to which transcendentalism is compatible with ontological naturalism.

Performance parameters of standard salt concentration sensitivity and linearity in Refractometers and Genesys 30 Spectrometer UV-Vis

The performance parameters of the sensitivity and linearity of the UV-vis Refractometer and Spectrometer in the standard salt solution test are very simple to do on a simple and inexpensive sample basis. The accuracy of measuring instruments is very important, and the process of checking measuring instruments through trials of salt content is one of the techniques in this study to determine the performance parameters of science laboratory equipment, especially in the use of refractometers and Genesys 30 spectrometer UV-vis. Both of these instruments are available in the Laboratory of the Faculty of Mathematics and Natural Sciences with different specifications in order to select an instrument that has high accuracy based on the characterization of the performance parameters of the Science laboratory equipment with indicators of higher sensitivity and linearity. The output of this research is to provide tool recommendations with high accuracy. Experimental results on samples of five different concentrations of salt solutions showed that the sensitivity and linearity of the spectrometer UV-vis were higher than those of the refractometer, so it can be concluded that to test the concentration of salt content in certain samples, it is better to use a spectrometer UV-vis.

Utilizing website for analytical and inorganic Chemistry laboratory services

Improving the quality of laboratory services in the Industrial Revolution 4.0 era, one of which is by utilizing information and communication technology or in this study it is called digitization. Digitization is the process of converting information available on paper to a digital format, digitization can be in the form of a website. Utilization of this website will make it easier for students to access the information needed quickly and easily. So far, inventories in analytical and inorganic chemistry laboratories have only been carried out by entering data in a book, and only some of the data has been entered into a simple Excel so it is too complicated and the risk of losing files is very large. Therefore, the use of a centralized website system needs to be done. This study intends to identify the stages involved in creating a website dedicated to the Laboratory of Analytical and Inorganic Chemistry within the Chemistry Department, Faculty of Mathematics and Natural Science at Universitas Negeri Surabaya. Additionally, it aims to assess user reactions to the website. The research methodology employed is the 4D approach, encompassing the Define, Design, Develop, and Disseminate phases. The initiation of the website design process entails the incorporation of various features to enhance its visual appeal. These elements are then used as a basis for coding both the website’s menu and content.