bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling of strategic decision-making in the innovative development of business structures
Authors: SAMAIBEKOVA Zeinegul K.
Published: August 2024

Subject. The article addresses the process of modeling strategic decision- making in the context of innovative development of business structures.
Objectives. The focus is on development and implementation of economic and mathematical models to optimize the process of strategic decision-making in the innovative development of business structures.
Methods. The study draws on economic and mathematical methods and scenario modeling. This combination enables companies not only to adapt to changes, but also to actively shape their future in conditions of constant development and changes in the business environment.
Results. I developed economic and mathematical models and methods, created simulation models that allow analyzing and predicting the effectiveness of strategic decisions in a dynamic environment. The novelty of the work lies in an integrated approach to modeling strategic decision-making using economic, mathematical, and simulation models, which makes it possible to improve the quality of resource management, predict results and minimize risks.
Conclusions. The integration of models and systems supports the adoption of scientifically sound management decisions that take into account the complexity of business processes and changes in the external environment.
Strategizing the processes of innovative library development in the digital economy
Authors: CHAADAEV Vitalii K. , NIKITINA Natal'ya V. , KORETSKII Aleksandr S.
Published: August 2024

Subject. The article discusses the need to form a model of library functioning, which, in addition to storage, can act as an infrastructure providing information support for the development of the national economy.
Objectives. The study aims to develop theoretical and methodological provisions for the formation and implementation of a strategy for advanced development of the library sector in the innovation economy.
Methods. The theoretical and methodological basis of the research was the scientific works by foreign and domestic scientists, leading consulting companies in the field of management theory, theory of strategizing and innovation management.
Results. We examined principles of strategizing the development of the library as a center of digital competencies to promote innovative services for readers, authors, society, government and business.
Conclusions. The integration of modern technologies into library activities, ensuring the relationship between the physical and virtual world, will bring the library to a completely new level of relationships with readers, and significantly increase the efficiency of information use.
Assessing the quality indicators of the management of the Territorial Compulsory Health Insurance Fund (the Orenburg Oblast case)
Authors: TROYANSKAYA Mariya A. , BIKBAU Alina E.
Published: August 2024

Subject. The article deals with the assessment of quality indicators of the territorial compulsory health insurance fund management, using the Orenburg Oblast case.
Objectives. The purpose is to identify problems affecting the quality of fund management and consider possible solutions.
Methods. The study draws on methods of systematization, analysis, and comparison.
Results. We assessed the management quality of the Territorial Compulsory Medical Insurance Fund of the Orenburg Oblast by analyzing a set of indicators, like the accuracy of budget preparation, proportion and structure of budget funds used for other than intended purposes, proportion of insured persons, proportion of working and non-working population, number of complaints received by the fund and their structures, and others.
Conclusions. Improving the quality of management of territorial compulsory health insurance funds in the Russian Federation is an integral part of strategy for healthcare system development, which, in turn, should ensure effective use of financial resources, improve accessibility and quality of medical care for the population, increase trust and satisfaction of citizens with the compulsory health insurance system.
The impact of oil industry indicators on the economic well-being of the Russian population
Authors: TREGUB Ilona V. , MYLTUSOVA Nadezhda V.
Published: August 2024

Subject. The article investigates factors of the oil industry that affect the economic well-being of the Russian population.
Objectives. The purpose is to examine possible impact of oil industry indicators on the well-being of the Russian population and develop an econometric model to predict the dynamics of living standards of Russians.
Methods. We applied correlation and regression analysis to develop an econometric model within the framework of this study. On its basis , we selected factors of the oil industry that affect the level of economic well-being of the Russian population. The study rested on statistical data from open sources for the period from 2000 to 2023.
Results. The paper identifies factors of economic activity of the industry that affect Russia’s GDP per capita. We developed an econometric model to determine the magnitude of the impact of oil industry indicators on the well-being of the country's population.
Conclusions. The price of oil and the level of demand for it on the international market, as well as investments in the development of new oil fields, are significant factors that have a significant impact on the well-being of the population.
Approaches to controlling the work of the company and top management by the owner
Authors: BOGDANOVA Tat'yana A. , KARLIK Mikhail A.
Published: August 2024

Subject. The article addresses control and evaluation of company's operations by the owner.
Objectives. The focus is on systematization of indicators for evaluating and controlling the company's performance, its investment attractiveness, and the work of top managers, from the position of an investor and CEO.
Methods. The study employs general scientific methods, like analysis, comparison, systematization, graphical and tabular methods of data presentation.
Results. We considered various approaches to evaluating the company's activities: from final indicators of value through financial and non-financial meters to actions aimed at improving relevant indicators, highlighted and formulated advantages and disadvantages of each approach. The paper determines features and possibilities of their use, taking into account the specifics of the context and goals of the investor in relation to a particular company.
Conclusions. The tools and indicators for monitoring the activities of the company and its top managers should be selected depending on the specifics of the investor, his share in the business, natural proximity to the operating activities of the enterprise, knowledge of the industry and business, and desire to devote significant time to control.
Analyzing the factors influencing the green bond market's development
Authors: KONNIKOV Evgenii A. , GUTMAN Svetlana S. , EGOROVA Maiya M.
Published: August 2024

Subject. This article examines the particularities of the green bond issuance in various countries, as well as the issues of forecasting the impact of macroeconomic and socio-economic indicators on the development of the green finance market.
Objectives. The article aims to determine the factors influencing the green bonds issuance through building regression models.
Methods. For the study, we used the methods of comparative analysis, synthesis, regression analysis, decision tree, and machine learning algorithms, namely random forest and gradient boosting.
Results. The article defines the fundamental links between the indicators of the size of the economy and the green bond issuance, assesses the quality of the constructed models under the accepted limitations of the study, and describes the degree of influence of the selected factors on the green bond market.
Conclusions and Relevance. The selected market is characterized by linear patterns, which are highly likely to be predicted by regression models. Logical connections are less accurate in describing the existing green bond market. The results of the study can be used by investors and financial analysts to make decisions in the field of green finance.
Establishing the relationship between the returns of stock markets of the BRICS countries
Authors: SALMANOV Oleg N.
Published: August 2024

Subject. The context of this article is aimed at studying volatility and integration between the stock markets of the BRICS countries.
Objectives. The aim is to examine cause-and-effect relationships of stock markets of the BRICS countries.
Methods. The data was analyzed using GARCH models to test volatility, and an autoregressive distributed lag (ARDL) model was used to identify the relationship between the BRICS stock market. The residuals of the ARDL cointegration model were tested by the CUSUM test, the Breusch-Godfrey LM Test for serial correlation, and the Breusch-Pagan-Godfrey test for residual homoscedasticity. To check for the presence of cointegration, the Engle-Granger cointegration tests, as well as the Johansen test and the Granger test are performed in the valuation view.
Results. The GARCH model shows that the stock markets of the BRICS countries are volatile. The ARDL test confirms the relationship between the stock markets of the BRICS countries. The results of the Engle–Granger, Johansen, and Granger causality tests and bounds testing in the ARDL model show the presence of cointegration between the stock markets of the BRICS countries.
Conclusions. As a huge economic power, the BRICS group of countries can change the economic climate of the world, if they are highly financially integrated. However, there is very little detailed study of the BRICS stock market to determine volatility and relationships. This article establishes the volatility of the stock market and the relationship between the return of the stock market of the BRICS countries.
Risk and yield analysis of structured products for retail investors
Authors: KHUTOROVA Natal'ya A. , TIKHNENKO Dmitrii O.
Published: August 2024

Subject. This article analyzes the risks and yield of structured bonds on the Russian stock market.
Objectives. The article aims to develop proposals aimed at limiting the risks of investors in transactions with structured bonds.
Methods. For the study, we used logical, comparative and statistical analyses, as well as scientific publications of domestic and foreign authors.
Results. The article confirms the hypothesis of a decrease in the efficiency of investments in structured bonds in the context of the tightening of the monetary policy of the Central Bank of the Russian Federation due to a sharp increase in risks while maintaining profitability, which reduces the attractiveness of these instruments. The article proves the need to develop a set of measures to tighten the conditions for the investor's admission to structured instruments, as well as the introduction of a number of requirements for issuers and brokers.
Conclusions and Relevance. The article concludes that it is necessary to provide more complete information about the product, including risk notification. The results can be used by private investors, as well as management companies and investment funds when modeling investment portfolios.
Implementation Of Computer Programming Mathematical Algorithm On A Server With The Debian Linux Operating System Via Virtualbox As Supporting The Admission Of New Students In Vocational Schools
Authors: Sina Ibnu , Santoso Nugroho Adhi , Ahmadi
Published: August 2024

In a network connected to the internet, a server computer or computer program is needed that can act as another computer to make requests for content from the internet or intranet. Apart from that, the server computer acts as a gateway to the internet world for each client. Thus, local networks that are connected to other networks or the internet are not directly connected to external networks or the internet, but must pass through a gateway, which acts as a boundary between the local network and the external network. The internet connection is shared among all computers through a component that functions as a proxy server. As is known, algorithm is a syllable that originally originated from mathematics and programming which originated from a computer or cellular network. Therefore, its use can be linked to one of the roles in the operating system where there is a programming algorithm. The purpose of this research is for researchers to carry out the process of learning about work methods and activities in an agency in the field directly. Researchers can get to know the actual work atmosphere so that they can build a good work ethic as well as an effort to broaden their work horizons, and increase their insight and knowledge of information technology in general. general, and especially in server implementations with programming algorithms. Mikrotik in this research is an operating system used to turn a computer into a reliable network router, including various features created for IP networks and wireless networks, suitable for use by Internet Service Providers (ISP) and hostspot providers. In this research, the proxy was installed built in to the router. Bina Islam Mandiri Kersana Vocational School is also one of the Vocational High Schools leading to the National Standard School. Therefore, human resources are also expected to support this goal. To obtain superior human resources, the new student admissions system has begun to set appropriate criteria and is also prepared as fully as possible.
"CHANCIFY" PWA (Progressive Web App) Learning Application to Enhance Motivation and Support Critical Thinking Skills
Authors: Eka Farida Fasha Eka Fasha , Hafiz Multazam Azhar  , Khurotul Aeni
Published: August 2024

Abstract
The development of technology in the 21st century has brought significant changes across various sectors, including education. Education must continuously adapt to remain relevant by leveraging technology, such as developing technology-based learning applications. The "Chancify" PWA (Progressive Web App) was developed to enhance student learning motivation and support students' critical thinking skills. This application provides comprehensive materials, practice questions, quick calculation features, interactive quizzes, and a chat feature to support learning. This research used a development research method, which included stages of preliminary study, planning, validation, final product review, and dissemination. Validation results showed that the application is valid with a score of 84.72% from media experts and 92.5% from subject matter experts. The practicality of the application was rated at 82.75% by users, indicating that the application is practical and valid. Motivation survey results showed a significant increase in students' learning motivation. The findings of this study are expected to improve the quality of education and student achievement.
The Use of Differentiated Instruction Strategies To Achieve Mastery Of Mathematical Communication Skills on Circular Material
Authors: Ariwibowo M. Dwi
Published: August 2024

This study aims to determine the completeness of students' mathematical communication skills by using differentiated instruction strategies. This research is a type of pre-experimental research with a one-shot case study research design. This research was conducted on students in grade VIII of SMP Negeri 3 Adiwerna in the academic year 2023/2024. With a population of 320 students in class VIII, class 8-E was chosen as the experimental class with a sample size of 32 students. The results of hypothesis testing with the T-test and Proportion Test show that learning with differentiated instruction strategies has achieved mastery.
Self-Efficacy of Class X Students on The Material of The Three-Variable Linear Equation System
Authors: Wahyuningsih Widya Pri
Published: August 2024

This study aims to determine the level of self-efficacy of students in the material of the Three-Variable Linear Equation System (SPLTV). The method used in this study is descriptive research with a qualitative approach. The subjects in this study are students of class X of Al-Irsyad High School, Tegal City, which totals 31 students. The data collection technique in this study is in the form of providing a questionnaire using the Likert Scale. The results of this study show that students have high self-efficacy in the material of the Three-Variable Linear Equation System (SPLTV) as seen from the answers to the statements in the questionnaire
Pintu Air Otomatis Pencegah Rob Berbasis Arduino
Authors: Ujianto Nur Tulus
Published: August 2024

Prototype sistem buka-tutup pintu air otomatis untuk mencegah air rob berbasis Arduino Uno merupakan suatu alat yang dirancang untuk membantu mengatasi masalah banjir yang disebabkan oleh curah hujan yang tinggi. Sistem ini menggunakan sensor air dan motor servo untuk membuka dan menutup pintu air secara otomatis. Sensor air digunakan untuk mendeteksi tinggi rendahnya permukaan air, dan saat air mencapai batas tertentu, motor servo akan diaktifkan untuk membuka pintu air sehingga air dapat mengalir keluar. Setelah air turun ke level yang aman, motor servo akan kembali menutup pintu air. Sistem ini menggunakan mikrokontroler Arduino Uno sebagai otak utama yang mengendalikan operasi sensor air dan motor servo. Selain itu, sistem ini dilengkapi dengan monitor LCD untuk menampilkan informasi tinggi air dan status sistem. Dengan adanya sistem ini diharapkan dapat membantu mencegah terjadinya banjir dan kerusakan yang disebabkan oleh air rob. Selain itu, sistem ini juga dapat membantu memudahkan proses pengaturan pintu air secara otomatis tanpa harus dilakukan secara manual.
Kombinasi Postur Kerja pada Pewarnaan Batik Colet dengan Analisa Rula (Rapid Upper Limb Assessment)
Authors: Siswiyanti Siswiyanti
Published: August 2024

Tujuan dalam penelitian ini yaitu untuk menganalisa kombinasi postur tubuh pekerja pada pewarnaan batik colet menggunakan metode RULA (Rapid Upper Limb Assessment) sehinggga dapat mengantisipasi cidera dan rasa sakit. Metode RULA (Rapid Upper Limb Assessment) merupakan metode ergonomi yang digunakan untuk menginvestigasi dan mengevaluasi posisi kerja dari tubuh bagian atas. Hasil penelitian yang telah dilakukan pada 3 kombinasi pewarnaan colet pada jangkauan tangan dekat, tengah dan jauh yaitu : posisi postur menggunakan meja rendah dengan posisi tubuh setengah berdiri didapatkan skor akhir ketiganya adalah 7. Posisi postur menggunakan meja tinggi dengan posisi tubuh berdiri didapatkan skor akhir adalah 4, 3 dan 7, dan postur yang terbaik untuk mengantisipasi cidera dan rasa sakit yaitu pada posisi postur kerja menggunakan meja rendah dengan posisi tubuh duduk dengan skor akhir adalah 3,6 dan 5. Postur kerja pewarnaan colet terbaik menggunakan Meja Rendah dan duduk (jangkauan tangan pendek) memiliki tingkat resiko sedang dengan tindakan Perlu investigasi lebih lanjut, mungkin diperlukan adanya perubahan untuk perbaikan sikap kerja
Pengaruh Pemanfaatan Polimer Hdpe Terhadap Nilai Stabilitas Sebagai Subtitusi Aspal Pada Perkerasan Asphalt Concrete-Wearing Course (AC-WC)
Authors: Budi Santosa Teguh , Weimintoro Weimintoro
Published: August 2024

Plastik atau polimer digunakan untuk campuran aspal sebagai larutan daur ulang dengan nilai fungsional yang ditingkatkan. Plastik yang akan digunakan adalah berjenis High Density Polyethylene (HDPE) yang banyak digunakan di kehidupan masyarakat. Dengan metode pencampuran basah, polimer HDPE disubstitusi dengan 4 variasi. Metode ini dilakukan guna mengetahui kadar terbaik berbagai campuran Plastik HDPE sesuai dengan Spesifikasi Ditjen Bina Marga Revisi 2 Tahun 2018.  Dari seluruh hasil pengujian karakteristik Marshall, penambahan berbagai plastik HDPE sangat mempengaruhi naik turunnya hasil pengujian. Secara umum hasil yang paling mendekati sampel normal adalah variasi 4%. Pada kadar 4% nilai stabilitas sisa dapat memenuhi spesifikasi karena penambahan plastik HDPE pada aspal dapat mempengaruhi daya rekat benda uji dimana ketika  direndam mampu mempertahankan bentuk dan kualitasnya.
Analisis Kekuatan Connecting Rod Dengan Penambahan Ukuran Dimensi
Authors: Bin Khanif Masnurojak
Published: August 2024

Penelitian ini bertujuan untuk mengetahui tingkat perubahan kekuatan uji stang piston khususnya pada kendaraan jenis motor astrea yang memiliki bahan almunium 6061. Dengan perubahan desain berupa penambahan dimensi menggunakan simulasi dengan aplikasi autodesk inventor 2023. Penelitian ini dilakukan dengan membuat desain stang piston yang berbeda dengan mempertimbangkan titik lelah dari logam non ferro almunium tersebut kemudian dilakukan pengujian menggunakan software inventor dengan pengujian tekan pada stang piston dimana data yang diperboleh dari hasil pengujian ini kemudian dianalisis menggunakan metode statis dengan membandingkan hasil simulasi dari desain original dan desain variasi stang piston untuk mendapatkan hasil perbandingan sehingga didapatkan nilai-nilai yang baru.
Analisa Pengendalian Kualitas Menggunakan Metode Gugus Kendali Mutu Untuk Mengurangi Produk Cacat Di PT Gaya Teknik Logam
Authors: Zulfah Zulfah , Luthfianto Saufik , Sugiono M. Cipto , Siswiyanti Siswiyanti , Hidayat Tofik , Nurwildani M. Fajar
Published: August 2024

PT Gaya Teknik Logam merupakan industri kecil menengah (IKM) yang bergerak dibidang manufaktur logam dengan produk yang dihasilkan yaitu berupa komponen otomotif. Salah satu jenis produk yang dihasilkan yaitu komponen standar tengah sepeda motor. Demi  menjaga kepercayaan  konsumen  untuk  menghasilkan  produk yang  berkualitas,  perusahaan  telah menerapkan  manajemen  mutu  yang  baik  dan sesuai  dengan  pedoman  standar  mutu  yang berlaku. Dalam  kegiatan  produksinya, perusahaan  selalu  berupaya  agar  menghasilkan produk  yang  baik  dan  menekan kerusakan produk, akan tetapi, kenyataan dilapangan seperti yang terjadi pada proses stamping banyak    ditemukan    produk    yang    dihasilkan    tidak    sesuai    dengan standar     yang     telah ditetapkan. Penelitian ini bertujuan mengetahui bagaimana pelaksanaan pengendalian kualitas menggunakan metode Gugus Kendali Mutu (GKM) dalam upaya mengendalikan tingkat kerusakan produk di perusahaan. Permasalahan yang ada diselesaikan menggunakan seven tools yaitu check sheet, diagram pareto, p- chart, diagram sebab-akibat. Terdapat empat jenis cacat yang ditemukan pada proses stamping yaitu profil tidak sempurna, hasil piercing tidak centre, dakon dan scratch. Cacat profil tidak sempurna memiliki kontribusi terbesar dalam cacat produk yang terjadi pada komponen standar tengah sepeda motor yaitu mencapai 56,1%. Beberapa faktor penyebab produk cacat pada proses stamping yaitu faktor manusia, metode, mesin dan lingkungan. Jumlah cacat sebelum dilakukan perbaikan mencapai 3.073 pcs dari total produksi 259.622 pcs. Sedangkan setelah perbaikan mengalami penurunan dari total produksi sebesar 272.892 pcs mengalami kecacatan sebesar 451 pcs. Setelah dilakukan perbaikan terhadap faktor-faktor penyebab masalah, kerusakan produk pada proses stamping mengalami penurunan sebesar 85,3%.
Rancang Bangun Sistem Monitoring Suhu, Kelembaban, Dan Gerak Pada Cold Storage Berbasis Internet Of Things (IoT) Menggunakan Wemos D1 R2
Authors: Binardi Teguh , Syam Yusuf , Harahap Doly Andrian , Hakim Abdullah Farid
Published: August 2024

Cold storage digunakan untuk menjaga dan menurunkan temperatur produk beserta kelembabannya agar kualitas produk tetap terjaga sampai pada waktunya dikirim ke konsumen. Pengontrolan temperatur pada cold storage menggunakan thermostat. Thermostat adalah suatu perangkat yang dapat memutuskan dan menyambungkan arus listrik pada saat mendeteksi perubahan suhu di lingkungan sekitarnya sesuai dengan pengaturan suhu yang ditentukan. Tujuan penulisan karya ilmiah ini adalah bertujuan untuk menciptakan suatu alat yang dapat memonitoring suhu, kelembaban, dan pendeteksi pergerakan didalam suatu ruangan khususnya ruang cold storage dimana bisa dimonitor via android, didalam rancangan alat ini penulis menggunakan sensor DHT22, sensor PIR HC SR501, dan mikrokontroler Wemos D1 R2 yang sudah berbasis ESP8266 yang bisa terkoneksi dengan WiFi, dimana arduino akan program melalui aplikasi Arduino IDE untuk menghasilkan suatu perintah pada komponen lainnya. Kegiatan praktik akhir yang dilaksanakan sejak tanggal 20 Februari 2023 –  20 Mei 2023 yang berlokasi di CV. Jaladra Teknik Bantul – D.I. Yogyakarta. Pengambilan data dan pengujian alat dilakukan di PT. ILM Mutiara Bahari yang cold storage-nya merupakan projek dari CV. Jaladra Teknik, hasil dari pengujian menunjukkan bahwa alat dapat berfungsi dengan baik dengan catatan jika panel mikrokontroler diletakkan di luar cold storage dan hanya sensor DHT22 dan sensor PIR HC SR501 yang diletakkan di dalam cold storage dimana pada alat akan mengirimkan data hasil pengujian di aplikasi blynk dan dicatat pada google sheet yang telah dirancang. Kesimpulan dari penelitian ini sudah berhasil merancang dan membuat sistem monitoring suhu cold storage berbasis IoT.
Usulan Perbaikan Kualitas Produk Cakram Kopling Menggunakan Metode Statistical Quality Control dan Fault Tree Analysis di PT. Exedy Manufacturing Indonesia
Authors: Purilistianto Hadi Nurafif
Published: August 2024

Exedy Manufacturing Indonesia adalah perusahaan industri otomotif yang memproduksi Clutch Assy Roda 4 - Roda 2 Kopling / Kopling, E. Spring, RLS Plate Sepeda Motor. Kapasitas produksi rata-rata mereka adalah 1.103 unit kampas kopling per hari. Perusahaan ini memiliki standar kecacatan produk yang tidak boleh melebihi 3%, namun saat ini rata-rata tingkat kecacatan produk mencapai 10%. Terdapat tiga produk cacat dengan jumlah tertinggi, terdiri dari 609 unit consumable blade, 533 unit ukuran kecil, dan 571 unit permukaan tidak rata. Hal ini berarti pengendalian kualitas yang dilakukan oleh perusahaan masih belum optimal dan perlu dilakukan perbaikan. Penelitian ini bertujuan untuk mengetahui jumlah dan penyebab cacat serta perbaikan kualitas dengan menggunakan metode statistical quality control (SQC) dan fault tree analysis (FTA). Dari hasil SQC menunjukkan bahwa 4 data melebihi batas kendali atas sehingga perlu dilakukan perbaikan. Hasil dari metode FTA menunjukkan terdapat 10 kejadian dasar dalam penentuan cut set yaitu kualitas material yang kurang baik, kurangnya pengalaman, prosedur kerja yang kurang baik, kelelahan, kurangnya keterampilan, tergesa-gesa, suhu udara, penerangan yang kurang baik, area yang tidak rapi, dan kinerja mesin yang menyusut. Kemudian dilakukan usulan perbaikan untuk memperbaiki faktor-faktor yang mempengaruhi penyebab terjadinya cacat tersebut.
Perbandingan Kuat Tekan Beton Menggunakan Air Pencampur Air Payau Dan Air Pencampur Air Biasa
Authors: Alokabel Koilal
Published: August 2024

Kekeringan disebabkan oleh perubahan iklim yang menyebabkan kekurangan air. Oleh karena itu, penggunaan air bersih harus efektif dan efisien dalam kondisi normal dalam jangka waktu pekerjaan konstruksi. Umumnya, Air bersih banyak digunakan untuk pekerjaan sipil seperti campuran beton, perawatan beton hingga penyelesaian pekerjaan struktur. Penelitian tentang penyediaan air untuk campuran beton selain air tawar seperti air laut dan air payau telah dilakukan dalam beberapa tahun terakhir. Penelitian ini dikembangkan untuk mereduksi air tawar menggunakan air payau pada campuran beton dan dibandingkan dengan beton air tawar. Selain air payau, komposisi agregat kasar, semen, dan semen rasio air mirip dengan beton air tawar. Rancangan campuran beton fc’ 30 MPa dari benda uji yang diuji berdasarkan umur beton yaitu 7 hari, 14 hari dan 28 hari. Hasil penelitian menyimpulkan bahwa kuat tekan beton air payau lebih tinggi 9,09% pada umur 7 hari; 11,52% pada umur 14 hari dan 8,16% pada umur 28 hari dibandingkan air tawar.
MEDIA PEMBELAJARAN BERBASIS PLATFORM SOSIAL VIDEO PENDEK DAN IMPLEMENTASINYA DALAM MATA KULIAH BAHASA INDONESIA
Authors: Dan Meilan Arsanti Aida Azizah, Evi Chamalah,
Published: August 2024

Sebagai pendidik harus dapat memilah strategi yang tepat agar tercapai tujuan pembelajaran sesuai sasaran dan juga sesuai dengan kebutuhan dan kondisi mahasiswa. Melalui penelitian ini, penulis mengimplementasikan media pembelajaran pada mata kuliah Bahasa Indonesia dengan menggunakan media yang sedang viral dan digemari oleh mahasiswa yaitu platform sosial video pendek. Penelitian ini dilakukan dengan tujuan untuk mendeskripsikan pembelajaran MKWU Bahasa Indonesia Program Studi Pendidikan Matematika FKIP Unissula menggunakan media platform sosial video pendek. Sering kita ketahui bahwa mahasiswa Program Studi Pendidikan Matematika identik belajar menggunakan teori dan rumus matematika. Menyikapi hal ini peneliti berupaya memberikan model pembelajaran dengan inovasi baru yang belum pernah digunakan sebelumnya. Jenis penelitian ini adalah penelitian qualitative-descriptive research.
PERBEDAAN PEMBELAJARAN SINEKTIK DENGAN KONVENSIONAL TERHADAP KEMAMPUAN MENULIS PUISI SISWA SMAN 1 WANASARI KABUPATEN BREBES
Authors: , Ghufroni, dan Hany Uswatun Nisa Renastasya Larastanti
Published: August 2024

Penelitian ini secara umum bertujuan untuk mengetahui tingkat keberhasilan dan kemampuan siswa praktik menulis puisi melalui penerapan model sinektik. Secara khusus penelitian ini bertujuan untuk mengetahui pengaruh penerapan model pembelajaran sinektik terhadap kemampuan menulis puisi siswa kelas X SMAN 1 Wanasari. Penelitian dilakukan dengan metode eksperimen dengan desain control group pretest-posttest design. Penelitian dilakukan pada siswa kelas X di SMAN 1 Wanasari Brebes. Populasi penelitian sebanyak 6 kelas dengan jumlah siswa sebanyak 216 siswa. Sampel penelitian diambil sebanyak 2 kelas dengan teknik kluster random sampling. Data diperoleh dengan test yang terdiri dari pretest dan postest. Analisis data menggunakan rumus uji-t dengan uji prasyarat meliputi uji normalitas dan uji homogenitas. Berdasarkan hasil analisis dan pembahasan, penelitian ini menyimpulkan bahwa ada pengaruh model pembelajaran sinektik terhadap kemampuan menulis puisi  siswa kelas X SMAN 1 Wanasari  Kabupaten Brebes.
UNSUR INTRINSIK DALAM NASKAH DRAMA KARLAK KARYA ALIN AMBARWATI DAN IMPLIKASINYA DALAM PEMBELAJARAN BAHASA INDONESIA DAN SASTRA DI SMA
Authors: Afsun Aulia Nirmala, dan Syamsul Anwar Tria Jaya,
Published: August 2024

Abstrak
Karya sastra adalah sesuatu pemikiran yang di ungkapkan penulis yang dituangkan melaluiu tulisan dengan bahasa sastra, banyak sekali jenis karya sastra salah satu contohnya adalah naskah drama. Naskah drama adalah sebuah teks karangan penulis yang menceritakan tentang suatu kejadian yang di dalamnya berisi dialog-dialog dan beberapa tokoh yang ada di dalam cerita tersebut. Tujuan dari penelitian ini adalah untuk mendeskripsikan unsur intrinsik yang terdapat dalam naskah drama Karlak karya Alin Ambarwati. Penelitian ini menggunakan pendekatan deskriptif kualitatif. Sumber data penelitian ini adalah naskah Karlak karya Alin Ambarwati yang berupa prolog, dialog-dialog tokoh pada naskah drama yang mengandung unsur-unsur intrinsik. Berdasarkan uraian bab-bab sebelumnya dapat disimpulkan sebagai berikut. Unsur intrinsik dalam naskah drama Karlak Karya Alin Ambarwati meliputi tokoh, alur, latar, tema, bahasa, sudut pandang, amanat dan petunjuk teknis. Terdapat 8 tokoh yaitu : Waridi, Lastri, Darmi, Mimi, Dirjo, Dulloh, Badar, Juleha. Tema dalam naskah drama Karlak Karya Alin Ambarwati adalah status sosial. Latar dalam naskah drama Karlak Karya Alin Ambarwati diagi menjadi 3, yaitu latar waktu : pada pagi dan siang hari. Latar tempat : disebuah dermaga pelabuhan. Dan latar suasana : menegangkan. Alur dalam naskah drama Karlak Karya Alin Ambarwati tergolong bentuk alur Maju, karena diceritakan scara runtut dari awal hingga akhir. Bahasa dalam naskah drama Karlak Karya Alin Ambarwati adalah menggunakan bahasa indonesia dengan sedikit tambahan bahasa daerah tegal. Dialog yang digunakan berbahasa Indonesia. Untuk memberikan kesan Tegal, Alin Ambarwati menambahkan kata dari bahasa Tegal. Amanat yang dapat diambil dalam drama ini yaitu jangan menyebar fitnah karena bukan hanya diri sendiri yang dirugikan melainkan orang lain juga. Terdapat petunjuk teknis yang dapat digunakan untuk mendukung pementasan
Kata Kunci  : Unsur Intrinsik, Naskah Drama, Implikasi
Role of Melatonin in Attenuation of Vascular Angiotensin 1-7 Reactivity Via Calcium Channels and Endothelial Derived Relaxing Factors in Induced Diabetic Aortic Rats
Authors: Mahmood Nazar M.Shareef , Mahmud Almas MR , Maulood Ismail M
Published: August 2024

Melatonin (MEL) appears to have a regulatory role in vascular tone through enhancing endothelial-derived relaxing factors (EDRFs) and modulation of calcium (Ca2+) influx in both vascular smooth muscle cells (VSMCs) and vascular endothelial cells (VECs). While, such effects on angiotensin 1-7 (Ang 1-7) vasoreactivity in the vascular endothelial dysfunction (VED) remained unclear. Therefore, the current study investigates the vasculoprotective action of MEL on Ang 1-7 dose response curve (DRC) via Ca2+ channels and EDRFs in streptozotocin (STZ)–induced diabetes mellitus (DM) in male albino rats’ isolated aorta. The present study included four experiments. Experiment I, included measurement of tunical intima-media thickness and the histological examination in non-DM, STZ-induced DM and STZ-induced DM treated with MEL. Experiment II included the measurement of the isometric tension using Ang 1-7 DRC with or without NG-nitro-L-arginine methyl ester (L-NAME), a nitric oxide (NO) inhibitor in the studied groups. Experiment III included the measurement of the isometric tension using Ang 1-7 DRC with or without indomethacin (IND), a non-selective cyclooxygenase (COX) inhibitor in the studied groups. Experiment IV included the measurement of the isometric tension using Ang 1-7 DRC with or without nifedipine (NIF), a voltage-dependent L-type Ca2+ channels blocker in the studied groups. The present study found that, MEL demonstrated protective effects against vascular stress through multiple mechanisms. These actions collectively contributed to the maintenance of vascular health, preservation of endothelial function, and prevention of vascular diseases. Also it modulated vascular response to Ang 1-7 by either antioxidant properties or Ca2+ vasomotion.
Green Synthesis of Zinc Oxide Nanoparticles from Lyngbya sp. and Their Antibacterial Activity
Authors: Al-Shammary M. A. , Al –Mayaly I. K.
Published: August 2024

In this study, the antibacterial activity of zinc oxide (ZNo NPs) was evaluated. ZnO NPs are considered as one of the many multifunctional inorganic nanoparticles with potent antibacterial properties. ZnO NPs were synthesized from the Lyngbya sp. extract.Following the green synthesis method,several other methods were used to characterize the biologically produced ZnO nanoparticles, including X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), atomic force microscopy (AFM), and UV–visible spectrophotometry (UV-Vis).The AFM results showed 52.09 nm diameter as an averagesize of ZnO NPs, while the shapes of NPs were irregular as revealed through the FE-SEM image.Also, using UV-visible a cut-off phenomenon of the biological synthesized ZnO was found to be around 265 nm. The antibacterial activity of ZnO NPs at 0.05, 0.025, 0.0125, 0.0062, 0.0031 and 0.0015 gm/mlconcentrations  were also tested on both Escherichia coli (Gram-negative bacteria) and Staphylococcus aureus (Gram-positive bacteria). The results demonstrated the inhibitory effects of ZnO NPs on S. aureus at0.05,0.025,0.0125, and 0.0062 gm /ml with inhibition zone of 10 ,9 ,8 and 6 mm respectively.While the E. coli results showed a growth inhibition at 0.05, 0.025, 0.0125 and 0.0062 gm/ml concentration treatments of ZnO NPs, represented by 22, 20, 18 and 10 mm of inhibition zone respectively.
Hydrochemical study and Water quality of Tigris Channel at Al- Taji area, Northern Baghdad
Authors: Abbood Ayat K. , Abdullah Enaam J , Al-Paruany Kamal B
Published: August 2024

The water quality of the Tigris Channel at Al-Taji area were studied in both periods (August, and March, 2022).  Eight samples were collected from Tigris channels to investigate water quality and parameters such as electrical conductivity (EC), total dissolved solids (TDS), Temperature (T), hydrogen number (pH), Total Hardness (T.H), as well as significant cations (Ca2+, Mg 2+, Na+, and K+), significant anions (CO32-, HCO3 -, Cl- and SO42-) and Heavy metals (Cd, Pb, Fe, Zn, Ni and Cr). The results show that the maximum value of EC is 1182 (µS/cm) in Ch3 in the dry period, while the lowest value of EC is1105 (µS/cm) in Ch1 in the wet period. The hydrochemical formula of water samples in both periods is CaCl. In this study, the dominating cation is Ca2+, followed by Na+, Mg2+, and K+, whereas the dominant anion is Cl-, followed by SO42-, HCO3-, and CO3-. According to Piper's illustration, all water samples that fall in class (e) are arranged together for both periods (wet and dry) "Earth alkaline water with a higher percentage of alkali and a sulfate and chloride predominance." Finally, the WQI is rated excellent for the wet Tigris channel and good water for the dry Tigris channel.
Quasi Subordination Properties of Bi-Univalent Functions By Using Generalized Srivastava-Attiya Operator
Authors: Hameed Firas N. , Shehab Nihad H.
Published: August 2024

In this paper, we conduct an investigation into a novel subclass of bi-univalent functions within the unit disk. The introduced subclass incorporates the generalized Srivastava-Attiya operator and satisfies specific quasi-subordination conditions. Through this study, the researchers determine the coefficient estimates  and  for functions within these subclasses and unveil new results by applying the operator to this particular subclass. The implications of these findings extend to complex analysis, number theory, and other branches of mathematics. Overall, this research significantly contributes to the theory of quasi-subordination of bi-univalent functions and enhances the understanding of the diverse applications of the Generalized Srivastava-Attiya Operator.
The Effect of Solar Irradiance on Innovative‎ Autoclave Operated by Solar Energy
Authors: Saleh Nada S. , Hussain Hazim H.
Published: August 2024

An autoclave is a device for sterilizing medical and surgical tools in hospitals and healthcare centers. The lack of electric power supply in some hospitals and rural health centers, in addition to pollution caused by fossil fuels, reinforces the need to search for other energy sources to operate the autoclave. Solar autoclaves can be utilized as an alternative choice in such circumstances. This work describes the effectiveness of the solar-powered autoclave, which is used for wet sterilization. The device is designed from a parabolic dish reflector covered with mirrors that reflect solar radiation toward the center of a focus for heating a vessel. It was found that the highest value of the average energy efficiency was 19 % and the average exergy efficiency was 2 % at 9:00 am and the lowest value of the average energy efficiency was 1.5% and the average exergy efficiency was 0.4 % at 12:00 noon. The effectiveness was tested against (pseudomonas aeruginosa) bacteria, where the highest values of steam temperatures for sterilization were recorded between 121 °C to 122 °C. It was also found that the sterilization efficiency was 100 % under steam pressure of 1.18 bar for every 30 minutes of the sterilization cycle for the periods 11:00 am to 11:30 am, 11:30 am to 12:00 noon, and 12:00 noon to 12:30 pm).
Antioxidant and Hepatoprotective Effects of Chitosan on High Fructose Induced Liver Damage in Albino Rats
Authors: AL-Kurdy Masar J. , Kazaal Meraim A.
Published: August 2024

Chitosan is a biodegradable natural polymer with many advantages such as nontoxicity, biocompatibility, and biodegradability. The current study aimed to evaluate the role of chitosan in reducing or regulating liver disorders caused by high fructose.concentration. The study was performed on thirty-two Wistar male rats, weighing between 195-200gms. These rats divided into four groups: control group which was kept on distill water, group 2 (G2) dosed with 40% fructose, group 3 (G3) dosed with 250 mg/kg of chitosan and group 4 (G4) dosed with 40% fructose and 250 mg/kg chitosan. After four weeks  of study the blood samples were taken by heart puncturing and then all animals were sacrificed and  specimens from liver were taken  and homogenized for Alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase activity (ALP), and superoxide dismutase (SOD) determination. Liver tissues blocks were  prepared by paraffin method stained using hematoxylin and eosin (H&E) stain. Highest concentration of ALT, AST, ALP, and SOD was detected in group G2  while serum albumin level decreased in rats in that group. We also found clear histological disorders in the liver of rats of this group. A reduction in the liver damage in G4, as the role of chitosan (G3) in improving liver function was proven by converging the level of the studied indicators from its counterpart in the control group. It can be concluded that chitosan is a successful protective agent for liver function: as it reduced hepatic impairment resulting from the use of fructose.
Assessment of Sediment Quality of Some Heavy Metals in the Con Lu Bay Area, Giao Thuy District, Nam Dinh Province
Authors: Thanh Dinh Xuan , Thuy Duong Nguyen , Van Huong Nguyen , Dinh Thai Nguyen , Thi Dung Tran , Hong Quan Nguyen
Published: August 2024

Abstract: Surface sediments were sampled in the Con Lu bay area to assess the levels of elemental enrichment, pollution, and ecological risks based on sediment grain sizes and heavy metal concentrations. Our results show that sediments in the bay-mouth area contain coarser and better sorting grain sizes than those in the center of the bay. The mean concentrations of heavy metals were ordered from the highest to the lowest as follows: Zn > Pb > Cu > As > Cd. The levels of geo-accumulation of metals, estimated using the reference background of the global average shale, are low for As, Cd, Cu, Zn, but are moderate to strong for Pb. The average values of metal enrichment factor (EF) are greater than 1.5, indicating the probable influence of anthropogenic activities. The contents of almost all heavy metals (i.e., As, Cd, Cu, Zn) in the sediment samples are lower than their regulation thresholds in the QCVN 43:2017/BTNMT, but Pb concentrations of samples in the bay mouth are ~ 6.5% higher than its regulation threshold. However, the assessment indexes including metal enrichment factor (EF), pollution load index (PLI), and potential ecological risk index (PER) are moderate, implying a sign of pollution and low ecological risk for surface sediments. Therefore, there is a need of early planning to limit the emission of heavy metals in the Con Lu Bay, where aquaculture activities and fishing boats have been concentrated.
Hydrothermal Carbonization of Soybean Milk Residue (Okara) for Nutrient and Energy Recovery
Authors: Thi An Hang Nguyen , Thi Thuy Giang Cao
Published: August 2024

Turning agricultural waste and by-products into benefits has always been an environmental and economical goal, especially in soymilk and tofu industries. This study explores the nutrients and energy recovery from soybean milk residue (okara) utilizing hydrothermal carbonization (HTC). The research focused on: i) The optimization of the HTC process; ii) The humic acid and nutrient recovery from HTC liquor; and iii) The effects of HTC conditions on the fuel properties of hydrochars. We found that, at optimal conditions, 90.5% phosphorus and 70.8% nitrogen in the pristine okara were extracted into HTC solution. These led to the recovery of 82% humid acid and 99.9% phosphorus from HTC solution, respectively. Additionally, nitrogen in HTC liquor was recovered as (NH4)2SO4 solution of 1026.7 mg N/L. The attained hydrochar exhibited a higher heating value (HHV) (23.04 MJ/kg), equivalent to or greater than hydrochars derived from the raw okara (15.03 MJ/kg) and other agro-wastes (16.20 - 22.30 MJ/kg). This study proves that acid-supported HTC is a promising method for the simultaneous recovery of nutrients and energy from okara, opening the way for its successful valorization.
Exploring the Therapeutic Landscape: A Systematic Review on the Anti-inflammatory Effects of Probiotics in Colitis-associated Colorectal Cancer
Authors: Suswita Rini
Published: August 2024

Background: Cancer is the second-leading cause of mortality worldwide. The inflammatory process has a well-known correlation with colorectal cancer, with chronic inflammation leading to malignancy. Long-term colitis disease has a 2-3-fold higher risk of colorectal cancer. Inflammation is involved in the development and progression of colitis-associated colorectal cancer (CAC), with molecular mediators and cytokines contributing to carcinogenesis. A diet of dairy products, such as probiotics, has been linked to a decrease in the incidence of colorectal cancer. Probiotics, known for their ability to modulate gut microbiota and immune responses, could potentially disrupt the inflammatory microenvironment implicated in the progression of colorectal cancer. Methods: We searched three databases: PubMed, ScienceDirect, and Wiley Online Library, using the respective keywords. A total of 248 studies were screened for eligibility, and nine studies eventually met the criteria and were reviewed. The SYRCLE RoB Tools were used to assess the risk of bias in the included studies.Results: The present evidence showed that treatment with probiotics was considered to be able to ameliorate the inflammation occurring in the CAC progression, as reflected in the severity of clinical signs, the expression of inflammatory markers, and the regulation of some pathways.
Perbandingan antara CT Score dan Saturasi Oksigen pada Pasien COVID-19 di Rumah Sakit UKI Tahun 2021
Authors: Elizabeth Patricia Roulin
Published: August 2024

Coronavirus disease 2019 (COVID-19) is an infectious disease that has causedpandemic effects on world demographics. It is caused by severe acute respiratorysyndrome coronavirus 2 (SARS-CoV 2). COVID-19 can attack various organs,especially the lungs. The first time a COVID-19 case was discovered in Indonesiawas announced on March 2, 2020. The number of casesspread rapidly in Indonesia.The objective of this study is to findout the comparison of CT scores and oxygensaturation of COVID-19 patients at UKI Hospital in East Jakarta. This study usesa cross-sectional design using medical records and data analysis using Mann–Whitney. Based on the result of the study, high CT-Score causes low OxygenSaturation, Furthermore, there is a relationship between CT Score and oxygensaturation of COVID- 19 patients at UKI Hospital in East Jakarta with a p-valueof 0.05.
Deteksi Resistensi Piretroid Secara Bioassay dan Mutasi Gen kdr pada Aedes aegypti dan Aedes albopictus
Authors: Diandra K. Puti Reno , Hasmiwati Hasmiwati , Indra Beni , Rusjdi Selfi Renita , Harahap Wirsma Arif , Masnadi Nice Rachmawati
Published: August 2024

Objective: The aim of this study is to detect the insecticide resistance by bioassay test and to detect the kdr mutation in Aedes aegypti and Aedes albopictus.Methods: This study was a narrative review that evaluated various articles related to detection of pyrethroid resistance by bioassay and mutation of the kdr gene in Ae. aegypti and Ae. albopictus sourced from PubMed, Google Scholar, and ProQuest database.Results: The results of the study review show that almost the entire population of Ae. aegypti and Ae. albopictus is already resistant to pyrethroid insecticide based on the bioassay detection using the WHO Susceptibility Test and CDC Bottle Assay protocols, and several variations of the kdr gene allele have been found, especially the V1016G, F1534C, and S989P genesConclusion: Ae. aegypti is resistant to pyrethroid insecticides, especially to deltamethrin and permethrin groups, Ae. albopictus are generally still in the susceptible status, and mutations in kdr gene are mostly found in the population of Ae. aegypti. The genotypes of the kdr that experienced many mutations are V1016G, F1534C, and S989P.