bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisa Potensi Penggunaan PLTS On Grid di Kota Makasar
Authors: Patabang Simon , Sampebatu Limbran , Kamolan Aries
Published: July 2023

Makassar is the center of government and business center in the province of South Sulawesi. The people of Makassar has a very high dependence on the use of electrical energy to meet their daily needs, both at home and at offices. The use of electrical energy which is quite high will cause an increase in customer bills every month. Therefore, this problem needs to be reduced by utilizing alternative energy sources. PLTS on grid is one of the solutions to reduce dependence on electrical energy from PLN. This research was carried out using a load simulation method based on the level of solar radiation in Makassar City at an installed power of 4500 VA. By using PLTS on grid the customer has two sources of electrical energy, from solar power and PLN line. The main source of electrical energy during the day is from on grid solar power and at night is from PLN line. If the power from the on grid solar power the day is insufficient to serve the load needs, PLN will automatically responsible for the electric power of the load. The simulation results show that the use of on-grid PLTS saves PLN's electricity consumption by 34.78% to 89.53%. These results illustrate that the potential for using on grid solar panels in the city of Makassar is very large
Analisis Perbaikan Jatuh Tegangan Pada Sistem Transmisi 150kV Gardu Induk Cerme Menggunakan Aplikasi Digsilent
Authors: Raka Trialviano Bagus  , Irawan Denny
Published: July 2023

The electrical quality, especially voltage fluctuations, is very important to remain stable in supplying voltage to consumers. PT. PLN (Persero) has a minimum voltage limit of -5% and a maximum of +10% which is regulated in the Minister of Energy and Mineral Resources no. 3 of 2007 in the transmission system. However, the 150 KV transmission system often experiences voltage drops caused by conductors that are too long and inappropriate loads, so that in maintaining good transmission quality, a reliable system is needed. One of them is GI Cerme which has a double busbar type, which separates the two Java-Bali transmission sub-systems and is connected to supplies from West Surabaya GI and Lamongan GI. Even so, the Lamongan-Cerme network with a length of 26.77KMS and transformer load causes a voltage drop, in the case that occurred in April 2023 at GI Cerme at peak load it experienced a voltage drop of up to 137 KV, so it is necessary to overcome the voltage drop problem the transmission system was repaired at GI Cerme. Through the digsilent application, it is possible to simulate better system planning at GI Cerme so that the voltage can be repaired according to standards.
THE NECESSITY OF SPEAKING ENGLISH IN HOSPITALITY
Authors: Nabila Zayanti Silvi , Rosmiyati Evi , Kartikasari Dewi
Published: July 2023

This study aimed to explore the speaking proficiency of students in the hospitality field and identify the specific requirements they have for speaking English. The research design employed for this study was qualitative, utilizing a case study approach. To gather data regarding the students' speaking proficiency and their requirements for speaking English in the hospitality field, the researcher employed open-ended questions during data collection with the participants. Thematic analysis, using a coding system, was used to analyze the data and identify patterns related to the students' speaking proficiency and their necessities for speaking English in the hospitality field. The findings of this study revealed that the students' speaking proficiency in the hospitality field served three main purposes: (1) meeting content-related needs, (2) utilizing appropriate learning media, and (3) addressing specific topics. Additionally, the study identified that the necessities of hospitality students in speaking English were focused on facilitating the learning process and optimizing their ability to speak English in the context of the hospitality field.
THE EFFECT OF MAP LIBS TECHNIQUE ON STUDENTS’ ENGLISH LEARNING ACHIEVEMENT IN LEARNING PERSONAL PRONOUN
Authors: Veto Mortini Asti , Jaya Aswadi , Akbar Zam M. Ali
Published: July 2023

The objectives of this study are to find out whether or not; (1) There is a significant effect of Mad Libs technique on Students’ Learning Achievement in Learning Personal Pronouns (2) There is a significant contribution of the Mad Libs technique on Students’ Learning Achievement in Learning Personal pronouns? This research used factorial experimental designs.  These designs are essentially modifications of either the posttest-only control group or pretest-posttest control group designs. The sample was the students of PGRI University of Palembang. Two classes were chosen in which first class was experimental with male students was applied and the second was the second experimental group trained by Mad Libs with female students. The results showed that the First, Mad Libs technique affected the students’ learning achievement in learning Personal Pronoun at PGRI University. The result of t independent test was the mean of the experimental group was higher than the mean of the control group. It could be concluded; the experimental group and control group were significantly different and the Mad Libs technique was effective to use in improving students’ achievement in learning personal pronouns.  Second, there was an interaction effect of the Mad Libs technique and students’ learning achievement toward achievement in learning personal pronouns.
AUDIO LINGUAL METHOD TO TEACH SPEAKING AND LISTENING SKILLS IN ENGLISH FOR NURSING COURSE
Authors: Arroyyani Risa
Published: July 2023

The objective of this study was to create instructional techniques for teaching topics in the English for Nursing: Elementary Course using the Audio Lingual Method (ALM). The focus of the study was on developing speaking and listening skills, and the methodology used was design-based research. The study began by designing instructional materials that incorporated ALM techniques and then identifying the elements to evaluate the activities. After careful consideration, four ALM techniques were selected: repetition drill, chain drill, substitution drill, and backward build-up. These techniques were applied to three out of the eight topics covered in the English for Nursing course, specifically Parts of the Human Body, Names of Departments in the Hospital, and Nurses' Duties in Wards.
THE ROLE OF EDUCATIONAL PHILOSOPHY AS THE FOUNDATION FOR TEACHER STRENGTHENING IN SCHOOLS
Authors: Khairani Fadhilah , Handayani Tuti , Effendi Darwin , Puspita Yenny
Published: July 2023

Education is one of the most important things in life, where there is a process of seeking information so that those who initially don't know become familiar with it, and those who don't understand become familiar with it. To educate people and make them knowledgeable, humans known as teachers or educators are needed. This study uses the library research method, which aims to collect information relevant to the problem or topic being studied. The information obtained comes from research reports, scientific books, scientific essays, theses and dissertations, statutes, regulations, yearbooks, encyclopedias, and other written sources, both printed and from other electronic sources. Overall, the authors can conclude that philosophy plays an important role as a basis for strengthening teaching in schools. Educational philosophy can provide guidance to teachers in carrying out their roles and obligations as educators who are encouraged and imitated in teaching and learning activities in schools, especially in the classroom.
THE EFFECTIVENESS OF USING TEACHING AIDS ON STUDENT LEARNING OUTCOMES IN INCREASING INTERACTION IN LEARNING
Authors: Ariani Kunci , Marleni Marleni
Published: July 2023

Learning English is generally hindered by the limited use of visual aids. As a result, students' understanding of the English language is not fully achieved, and the learning process becomes less active due to a lack of interaction between teachers and students. Therefore, it is necessary to incorporate teaching aids to enhance student learning outcomes after using unit teaching aids. This research employed an experimental method with a Pretest-Posttest Control Design. The study was conducted in Class V at SDN 69 Palembang, where the VA class served as the control group and the VB class as the experimental group. Data on understanding the concept of measurement were collected from the results of pre and post-tests administered to both groups. The data analysis revealed that the average score of understanding in the control group during the initial test was 54.38%, which increased to 71.04% by the end of the test. On the other hand, the average score in the experimental class during the initial test was 52.95%, which improved to 80.23% by the end of the test. Therefore, the effective use of unit teaching aids benefited the Class V students at SDN 69 Palembang.
БОРГОВА БЕЗПЕКА УКРАЇНИ: КЛЮЧОВІ ІМПЕРАТИВИ ВОЄННОГО СТАНУ
Authors: СТЕЦЕНКО Богдан , БУРЯЧЕНКО Андрій , ЗАХОЖАЙ Костянтин , ПРІСНЯК Сергій
Published: July 2023

Стаття присвячена дослідженню практичних засад управління державним боргом та формуванню підходів до  боргової безпеки України в умовах воєнного стану. Артикульовано, що з початком відкритої агресії проти нашої держави в лютому 2022 року, катастрофічно знизилися ключові макроекономічні показники, а здатність держави наповнювати державний бюджет суттєво скоротилася. Поряд з цим, з метою виконання державних функцій у сфері національної безпеки та оборони виникла потреба у різкому збільшенні фінансування цих напрямів. Фактично, у 2022-2023 рр. постало питання про фінансову спроможність України не тільки фінансувати оборонні статті державного бюджету, але й на мінімально можливому рівні спрямовувати ресурси на інші напрямки. Аналіз даних засвідчив, що виконання цих завдань було б неможливим без допомоги зовнішніх донорів. Разом з тим, треба визнати, що проблеми у сфері боргової безпеки України виникли задовго до 2022 року. Дисбаланси політики у сфері публічних фінансів змушували  постійно використовувати боргове фінансування, що в кінцевому варіанті призвело до формування численних загроз та ризиків. Враховуючи надзвичайно потужну підтримку України серед країн-лідерів глобальної економіки, можна припустити, що зазначений рівень фінансової підтримки буде збережено. Проте, немає підстав стверджувати, що час та обсяги зовнішнього фінансування будуть нескінченними. Навіть в умовах воєнного стану державі потрібно реалізувати комплекс заходів, які б дали можливість зменшити рівень боргового тиску на державний бюджет. А в поствоєнному періоді зазначені задачі матимуть першочергове значення. Зазначені кроки у сфері боргової безпеки мають опиратися на досвід інших держав та використовувати сучасні сучасні технології державного боргового менеджменту.
Comparison of the Effect of Variable Helix Angle Geometry Tools on CNC Vertical Milling Machines on Chatter using a microcontroller Based on SLD
Authors: Simon Christof Geraldi , Hardinsi Festo Andre , Paliling Formanto
Published: July 2023

Vibrations that often occur in the production process using CNC milling machines are very important to take into account. These vibrations can cause dimensional changes and affect the level of quality produced, so the effect of chatter vibrations on production becomes a major problem in the milling process. Vibration values are determined using SLD graphs experimentally, analytically and semi-analytically. The material used in this study is SS 304, MPU 6050 which is connected to Arduino Uno using LabVIEW 2019 student edition software in the form of FFT charts. Data collection using experimental methods, tool geometry parameters are tool geometry VHA 35/38 degrees and VHA 36/38 (Degrees), Spindle Speed 2000,2500,3000 (RPM), Depth Of Cut 0.4, 0.7, 1 (mm), and Feed Rate 100, 125 and 150 (mm/s). The results of the SLD study used a variable helix angle of 35/38 degrees at a feed rate variation of 100 mm / minute chatter at cut depths of 1, 0.7 and 0.7 mm, at a feed rate variation of 125 mm / minute chatter at a cut depth of 0.7, 1 and 0.7 mm. At feed rates of 150 mm/min at cut depths of 1, 1, and 0.7 mm with spindle speeds equal to 2000.2500 and 3000 RPM. While VHA results of 36/38 degrees at a feed rate of 100 mm / minute experienced chatter at cut depths of 0.7.1 and 1 mm, at feed rates of 125 mm / minute chatter at cut depths of 1.1 and 0.7 mm. At a feed rate variation of 150 mm/min chatter at cut depths of 1.1, and 0.7 mm with the same spindle speeds of 2000.2500 and 3000 RPM.Keywords : Chatter, VHA, SLD, microcontrolle, FFT
Laws of Taxation for Multicellular Organisms: The Economics of Sleep
Authors: Tozzi Arturo
Published: July 2023

In macro-public finance, the Ramsey rule (RR) concerns variable taxation to maximize social welfare and economic efficiency in a purely competitive monopolistic system. To extract tax revenue with the least loss of utility to the representative individual, RR dictates that optimal, proportionate taxes should be such as to diminish in the same proportion the production of each commodity taxed. The sources of supply that are inelastic, i.e., necessities/utilities, must be taxed more. We hypothesize that Ramsey’s economical approach might provide a general mechanism to investigate far-flung biological issues, such as prey/predator dynamics, food restriction in ecological niches, or local changes in blood flow in rival or complementary organs of multicellular organisms. In particular, RR suggests a quantifiable relationship between the physiological decrease in cortical spike frequency occurring during sleep and energy consumption. Since small decreases in spike frequency during sleep are correlated with large decreases in the amount of consumed ATP, the brain could be considered an inelastic commodity that can be “taxed” more than other organs, allowing the whole organism to spare energy. Shedding light on the energy budget of the central nervous system, RR improves our knowledge of cerebral perfusion during sensory-evoked responses and tissue hypoxia caused by decreased blood flow, suggesting that energy from outside can be provided to counteract brain ischemia. In sum, the economical approach provided by Ramsey stands for a useful methodological tool that could be used in biological contexts to investigate the dynamical correlations among different organs in multicellular organisms.
Cloud-based geospatial services for building capacity and safeguarding heritage in climatically marginal landscapes
Authors: Lim Jonathan S. , Matas Gonzalo Linares , Smith Rachel , Gleason Sean , Church Lynn Marie
Published: July 2023

Our world is changing rapidly, and nowhere is this transition more pronounced than in the climatic extremes of our planet. For the people who call these places home, the myriad threats facing their rich cultural landscapes in the context of the current climate change crisis—rising sea levels, fluvial erosion, drought, sand dune encroachment—are becoming a source of great social anxiety. Furthermore, these environmental pressures are compounded by population growth and urban development.

Using two contrasting study regions, the Yukon-Kuskokwim Delta in Alaska, USA and Mauritania, we explore how free cloud-based geospatial services such as Google Earth Engine (GEE) might be used to build capacity for communities in the Arctic and the Sahel. We present five analytical remote sensing tools built in GEE, each one designed to address specific and urgent environmental concerns in the regions in question.
The antibacterial activity of Allium sativum, Thymus vulgaris, Origanum vulgare, Curcuma longa, Rosmarinus officinalis, and Cinnamomum species against various antibiotic-resistant strains of bacteria: A Literature Review
Authors: Martin Brett , Le Ian T. , Braff Daniel
Published: July 2023

OBJECTIVE. The purpose of this narrative review was to evaluate the antimicrobial activity of garlic (_Allium sativum_), thyme (_Thymus vulgaris_), oregano (_Origanum vulgare_), turmeric (_Curcuma longa_), rosemary (_Rosmarinus officinalis_) and cinnamon (_Cinnamomum _species) for the treatment of antibiotic-resistant strains of _Staphylococcus aureus, Streptococcus pneumoniae, Pseudomonas aeruginosa, Escherichia coli_, _Campylobacter jejuni, _and _Salmonella typhimurium_.

METHODS. The scientific electronic database PubMed was utilized to review the current literature. The inclusion criteria consisted of academic journal articles that were available as free full-text studies published between 2007-2018.

RESULTS. In total, 2,923 articles were found and 71 of those met the preset criteria. The literature review provided evidence that garlic (_Allium sativum_), thyme (_Thymus vulgaris_), oregano (_Origanum vulgare_), turmeric (_Curcuma longa_), rosemary (_Rosmarinus officinalis_) and cinnamon (_Cinnamomum _species) may be effective for the suppression of growth of antibiotic-resistant strains of _Staphylococcus aureus, Streptococcus pneumoniae, Pseudomonas aeruginosa, Escherichia coli_, _Campylobacter jejuni, _and _Salmonella typhimurium_.

CONCLUSION. Antibiotic-resistant strains of bacteria are a major issue in the healthcare field. Natural plant-based products may provide a benefit as an adjunct therapy or monotherapy for certain strains of bacteria that are antibiotic resistant.
The “Bird of Paradise”: Heller and Márkus
Authors: Grumley John
Published: July 2023

Agnes Heller and György Márkus became two of the leaders of what became known as the “Budapest School” in the early 1960’s. This group was finally forced to leave Hungary and became political refugees in Australia. Their friendship survived the strains that attended their very different personalities and the difficulties of post-Budapest School lives and work. Even when they came separated across the world they kept in close contact and continued to share their work. In the following, I consider Agnes Heller’s final critique of Márkus’s work and assess its strengths and weaknesses. The difference between Heller and Márkus reveals the philosophy is not the “Owl of Minerva” but a “Bird of Paradise” permanently in flight and change.
From Victory to War: a Case of History Education and History of Education in Nigeria, 1982-2022
Authors: Akanbi Grace
Published: July 2023

The root of all knowledge is history, and to have a deeper understanding of any field of study, you must know its history, and that is the extent of usefulness of history. Therefore, a lack of awareness of the history of a nation by its citizens may spell doom, even for the unborn generation. History education was not taught or learned for 36 years in Nigeria’s primary schools between 1982 and 2018, and it was optional at the senior secondary schools. However, some intellectuals fought and won the battle to reinstate its teaching at the basic levels of education. Unfortunately, the recently introduced Core Curriculum and Minimum Academic Standards (CCMAS) for the Nigerian University System by the National University Commission (NUC) subsumed the history of education into a general course titledIntroduction to Teaching and Foundations of Education, EDU 101. Why should another field in history be subsumed when the government just reinstated history education in the curriculum? It is from victory to war again, which is the focus of this study. The researcher did a comparative status of history education in other nations and looked at the content of the history of education as a compulsory course, comparing it with the CCMAS content. Recommendations are made for inclusive participation in curriculum revision and reinstating the history of education as a mandatory course for all students.
PERANCANGAN PEMBANGKIT LISTRIK TENAGA SURYA UNTUK PENERANGAN JALAN UMUM (PJU) DI DUSUN KARANG TENGAH DESA JATISARI KABUPATEN LUMAJANG
Authors: Rachmanita Risse Entikaria
Published: July 2023

Permasalahan yang terjadi di Dusun Karang Tengah Desa Jatisari Kecamatan Tempeh Kabupaten Luamajang adalah kurangnya fasilitas penerangan jalan umum menuju perkebunan petani. Minimnya fasilitas umum berberdampak pada ketentraman dan kenyamanan hidup masyarakat, Kegiatan penelitian di dusun karang tengah dilaksanakan untuk menyelesaikan permasalahan yang terjadi dilingkungan tersebut. Salah satu solusi penyelesaian masalah adalah dengan peningkatan fasilitas umum berupa lampu penerangan jalan umum (PJU) berbasis solar system. Pengaplikasian teknologi solar system karena potensi tenaga surya di Dusun Karang Tengah Desa Jatisari Kecamatan Tempeh Kabupaten Lumajang cukup tinggi yaitu sekitar 1000-1300 W/m2 dan juga sebagai upaya memaksimalkan energi baru terbarukan (EBT). Langkah-langkah kerja meliputi observasi, perencanaan, penerapan dan pengujian. Komponen utama lampu PJU berbasis solar system adalah lampu AC, Modul surya, Solar Change Control dan Batrai. Berdasarkan perencanaan diperlukan lampu AC 20 Watt Baterai 65 Ah-12 V, Modul surya 100 Wp dan Change control 10 A untuk pemakaian selama 8 jam. Hasil akhir kegiatan penelitian ini adalah lampu PJU berbasis solar system telah mampu diterapkan di lingkungan Dusun Karang Tengah Desa Jatisari Kecamatan Tempeh Kabupaten Lumajang.
PENGARUH PENGATURAN FILL DENSITY TERHADAP SIFAT MEKANIS POLYLACTIC ACID HASIL TEKNOLOGI FUSED DEPOSITITION MODELLING
Authors: Prihadianto Braam Delfian , Darmo Suryo , Krisnaputra Radhian
Published: July 2023

Along with advances in science and technology in creative industry, the production process no longer relies on manual creativity, but develops and expands the application of technology to simplify and accelerate the production process. One example of the creative industry sector that applies technological developments is the miniature industry. A new technology that is starting to be in demand among miniature manufacturers is the Fused Depositition Modeling (FDM) technology. It is a method using solid base rapid prototyping technology with an extrusion process and is a solution to the above problems. Polylactic Acid (PLA) is one of the materials used by miniature manufacturers, because this material is included in the aliphatic polyester group which is made from α-hydroxy acid and has degraded properties, making this material relatively safer for health and the environment. The research focuses on the mechanical properties of FDM technology with PLA filament materials, especially tensile and bending strength. This study used an experimental method with reference to the FDM machining parameters with a variation of the fill density from 0.1 to 1.0. Based on the results of experiments and tests that have been done, the tensile strength values are 29.063 - 36.215 MPa and the bending strengths are between 42.520 - 80.315 MPa. Therefore based on the test results it can be concluded that the fill density parameter affects the tensile and bending strengths produced by FDM technology with PLA material.
Rancang Bangun Dual Axis Sun Tracker Menggunakan Motor DC Power Window CSD60-B
Authors: Nugroho Bagus Eko , Prasetiyo Erwan Eko , Marausna Gaguk
Published: July 2023

Sun tracker technology is one of the mechatronic devices to optimize the electrical energy rays from the sun's rays by directing the solar panel plane to follow the sun's direction. This research aims to design and manufacture an effective dual axis sun tracker so as to maximize the absorption of solar energy. The benefits of the research provide a design concept and a mechanical prototype of a dual axis sun tracker with a capacity of 200 Wp which is able to detect light sources using a CSD60-B DC motor in the driving system. The research method using the Conceptual Design method is a research method used in product manufacture with product development and analysis produced systematically and regularly. The results of the research on the design of a dual axis sun tracker using a DC motor CSD60-B resulted in a mechanical structural design with 3 main components, namely horizontal plane components, vertical plane components, and legs components as well as the effectiveness of the motor work applied in the product prototype. specification of horizontal plane dimensions with a length of 1494 mm, a width of 1024 mm, with the use of a shaft diameter of 57 mm and a pillow block UCP212-26 as a support for the work of the axis, a vertical plane component with a length of 1200 mm with the use of a transmission shaft of 60 mm and 2 units of pillow block UCF212 as a support for the work of the shaft, and components of the legs which have a length of 1508 mm, a width of 1008 mm, and a height of 548 mm. The effectiveness of the motor work obtained in the application in the drive system for the horizontal plane component is 123.16% and 89.38% in the vertical plane component.
Uji Eksperimen Konfigurasi Lup pada Termoelektrik Generator Tipe TEG SP1848-27145 SA untuk Alat Penerangan Jalan
Authors: Fahriani Vera Pangni , Sahril Muhamad , Setiawan Reza , Pertiwi Suciani Rahma
Published: July 2023

Majunya perkembangan zaman membuat kebutuhan akan energi listrik semakin meningkat. Berbagai usaha telah dilakukan untuk mencari sumber energi listrik terbarukan, salah satunya dengan pembangkit energi listrik kapasitas mikro yang memanfaatkan energi panas dari cahaya matahari. Pemanfaatan energi panas sebagai pembangkit energi listrik dapat dilakukan dengan menggunakan elemen Termoleketrik Generator (TEG). Penelitian ini bertujuan untuk mengetahui karakteristik dan unjuk kerja dari termoelektrik generator sebagai pembangkit listrik. Penelitian ini menggunakan 8 buah termoelektrik dan 12 buah termoelektrik tipe TEG SP1848-27145 SA serta menggunakan lup (lensa kaca pembesar) untuk mengumpulkan sinar matahari ke arah plat sehingga terdapat titik fokus yang dapat meningkatkan suhu pada plat yang langsung mengenai sisi panas dari elemen termoelektrik. Frekuensi pengambilan data dilakukan tiga kali pada setiap pengujian dengan eror pengambilan data kurang lebih 5%.  Hasil dari pengujian tertinggi menunjukan bahwa dengan 12 buah modul termoelektrik generator yang disusun secara seri serta dengan menggunakan lup, dapat menghasilkan tegangan keluaran sebesar 1,54 V dengan perbedaan temperatur (∆T) sebesar 25°C. Sehingga diperoleh besaran daya sebesar 0,437 W.
Perancangan dan Implementasi Metode Kontrol Fuzzy Logic Mamdani pada Sistem Kontrol TDS dan pH Hidroponik
Authors: Hamdani Muhammad Willy
Published: July 2023

Selama ini petugas harus melakukan pengecekan secara manual perubahan kuliatas air yang terjadi pada nilai–nilai setiap parameter nutrisi. Pengecekan secara manual dianggap kurang efektif karena petugas harus melakukannya secara berkala . pada penelitian kali ini, merancang dan memimplementasikan sebuah alat Pengkondisian Nilai Kadar TDS dan pH pada Sistem Hidroponik. Alat ini, dapat mrngkondisikan kualitas air berupa nilai TDS pada sistem hidroponik. Alat ini menggunakan metode kontrol fuzzy logic Mamdani yang dapat mengkontrol peristaltic pump yang dikendalika oleh mikrokontroller Arduino Mega 2560  untuk menyalurkan larutan nutrisi dengan dosis yang tepat. Sehingga, mengurangi nilai error dalam melakukan pengkondisian nilai nutrisi. Metode yang digunakan dalam penelitian ini yaitu metode kuantitatif, deskriptif dan evaluatif. Tahap pertama penelitian ini adalah studi kasus lalu dilakukan pengumpulan data. Sistem perancangan dilakukan secara software dan hardware yang nantinya perancangan tersebut akan diimplementasikan untuk pembuatan alat pengkondisian kadar nutrisi pada sistem hidroponik. Selanjutnya dilakukan pembuatan alat pengkondisian kadar nutrisi pada sistem hidroponik, untuk dilakukan uji coba. Hasil yang didapatkan bahwa alat dapat bekerja dengan baik serta sistem SHYSY yang dapat melakukan pengkondisian sesuai dengan rancangan yang telah dibuat, sehingga dapat meningkatkan efisiensi waktu dan mengurangi human error.
DESAIN DAN SIMULASI PENGATURAN SUHU VENDING MACHINE MAKANAN MENGGUNAKAN ADAPTIVE NEURO FUZZY INFERENCE SYSTEM(ANFIS)
Authors: Asyrafi Muhammad Fauqi , Effendi Moh. Zaenal , Wahjono Endro
Published: July 2023

The current temperature control system has developed rapidly and has been used in various fields, one of which is the food industry. As we know in the presentation of food, temperature is a very influential thing in the taste of the food. With the development of technology, the way humans sell is now more modern, one of which is selling with vending machines. It is very important to pay attention to the selection of the method in setting the right vending machine temperature to avoid reduced enjoyment in consuming the products sold due to changes in the temperature that has been determined. Therefore, in this study, the Anfis method is proposed for temperature regulation in vending machines. From the simulation results from the simulation results, the Anfis control can accelerate the temperature in reaching the set point and can also maintain the temperature to the set point
Maximum Power Point Tracking Berbasis Fuzzy Logic Control Pada Heater Mini Sauna di Masa Pandemi
Authors: Dewi Rahmatiana
Published: July 2023

Pada masa pandemi, kesehatan itu penting. Mandi uap dengan rebusan rempah di sauna dipercaya dapat meningkatkan kekebalan tubuh dan memperlancar pernapasan. Namun pada umumnya heater di sauna memiliki daya yang sangat besar dan masih menggunakan sumber dari PLN, sehingga penggunaannya dapat menimbulkan biaya listrik yang cukup tinggi. Untuk menekan biaya yang tinggi dapat dimanfaatkan energi alternatif yaitu energi surya. Dengan keluaran PV yang tidak linier sehingga tidak dapat menghasilkan daya yang maksimal, maka dapat menggunakan metode yang disebut maximum power point tracking (MPPT) yang digunakan untuk mencari titik daya maksimum sehingga akan meningkatkan efisiensi daya keluaran pada PV. Oleh karena itu, akan dibuat alat optimasi daya (MPPT) dengan menggunakan metode kendali logika fuzzy untuk mengendalikan DC-DC Cuk Converter. MPPT kontrol logika fuzzy disimulasikan menggunakan MATLAB dengan 2 kondisi yaitu menggunakan 3 fungsi keanggotaan dan 7 fungsi keanggotaan. Didapat hasil bahwa penggunaan 3 Mf hanya dapat meningkat sebesar 97,5% sedangkan penggunaan 7 Mf meningkatkan nilai daya maksimum sebesar 99% pada iradiasi 1000 W/m2, yang mana menghasilkan daya keluaran mendekati daya maksimum pada spesifikasi pada PV.
PERANCANGAN INFRASTRUKTUR DAN IMPLEMENTASI WEB SERVER UNTUK WEBSITE SEKOLAH SEBAGAI MEDIA INFORMASI DAN KOMUNIKASI DI SMP PJHI BALIKPAPAN
Authors: Ihsan Ihsan , Lesmideyarti Dwi , Hidayati Qory , Nugroho Tri Retno
Published: July 2023

This research activity in collaboration with partners is carried out with the background of wanting to implement relevant science to solve problems that occur in the community. The world of education, from elementary school to university levels, is required to be able to adapt to rapidly developing technological advances, especially in the field of information. Various ways are carried out by an agency to address the global issue of the 4.0 revolution, where information systems are needed, especially junior high schools that do not yet have a web server as a cloud-based database storage medium and school website facilities as a medium of information to the public. Various information can be provided through the school's website, including school profiles, learning activities, teacher and student achievements and New Student Admissions (PPDB). In this research activity, the implementing team designed a web server and school website using the UML (Unified Modeling Language) and PHP (PHP Hypertext Preprocessor) programming language. The problems faced by partners are the location of the school which is less strategic and the number of applicants is getting smaller every year in the Batakan area of East Balikpapan, does not have informative media for various aspects of interest, the existence of an online PPDB policy from the Education Office to suppress the increase in cases of covid19, limited human resources in the internet and information systems, as well as school quality assurance, namely accreditation. To overcome these problems, SMP PJHI Balikpapan must have its own web server and website. The benefits of online PPDB activities can be carried out so that parents do not need to go to school during registration, and can facilitate the achievement of school accreditation, so as to increase the credibility of the school. The research activities carried out by the team consisted of establishing communication with partners, designing and implementing school servers and websites, providing training on the use of websites, implementing websites in schools.
Peningkatan Efisiensi SEPIC Converter dengan MPPT Incremental Conductance pada Panel Surya
Authors: Akisa Rofi Amrullah
Published: July 2023

SEPIC Converter merupakan salah satu topologi DC-DC Converter. Spesifikasi SEPIC Converter mempunyai ripple arus dan tegangan masukan yang kecil, polaritas tegangan keluaran yang sama dengan masukannya. Perubahan intensitas cahaya matahari dapat mempengaruhi daya yang dihasilkan oleh SEPIC Converter. Maka diperlukan suatu metode kontrol pada SEPIC Converter untuk daya yang optimal. Untuk mengatasi masalah tersebut, digunakan sistem MPPT (Maximum Power Point Tracking) dengan algoritma Incremental Conductance (IC). Keluaran algoritma ini berupa duty cycle yang digunakan untuk switching converter. Algoritma IC dipilih karena memiliki kelebihan yaitu mempunyai daya keluaran, kecepatan tracker MPP (Maximum Power Point) lebih tinggi dibanding menggunakan algoritma P&O (Perturb & Observe). Sistem ini diuji dengan panel surya 100 Wp. Dari hasil pengujian sistem menggunakan MPPT didapatkan daya keluaran tertinggi berada pada saat intensitas cahaya sebesar 120000 Lux yaitu 36,9W dengan efisiensi sebesar 87%
A new polymer synthesis: structural characterization, antimicrobial and antiproliferative activity
Authors: ÇANKAYA Nevin
Published: July 2023

In this study, homo-polymerization of N-(4-nitrophenyl) acrylamide (NPA) monomer was performed and firstly poly(NPA) homopolymer was synthesized in the literature. The structure of synthesized homopolymer was chemically characterized by FT-IR, 1H-NMR and 13C-NMR spectroscopic techniques and elemental analysis. Thermal behavior was investigated with DSC, and TGA/DTA/DTG simultaneous system. Biologically, antimicrobial activity (E. coli, S. aureus, B. megaterium, E. aeroginosa, C. tropicalis) test research was performed. Followed the cytotoxic effect of polymer was investigated using XTT assay on HeLa cells.
The Relationship Between Maternal Obesity with Pregnancy-Associated Hypothyroidism, Fetal Health, and Pregnancy Outcomes
Authors:   Associate Professor, School of Nursing, Al-Balqa Applied University, Salt, Jordan, Al Hadid Lourance , Al-Rajabi Omymah Z. ,   Instructor, Rufaida Al-Aslamiah College of Nursing, Al-Balqa Applied University, Jordan, Barmawi Marwa Al ,   Associate Professor, Faculty of Nursing, Al-Zaytoonah University of Jordan (ZUJ), Amman, Jordan, AL-Sagarat Ahmad Yahya ,   Associate Professor of Mental Health Nursing, Community and Mental Health Nursing Department, Faculty of Nursing, Mutah University, AL-Karak, Jordan
Published: July 2023

Introduction: The prevalence of obesity is increasing worldwide, especially among pregnant women. Maternal obesity is a serious risk factor during pregnancy associated with pregnancyrelated complications for the mother and her child. Objective: This study aimed to estimate the prevalence of Jordanian pregnant women who are overweight or obese. The relationship between high body mass index and selected obstetrical conditions was also investigated. Materials and Methods: A descriptive, correlational, cross-sectional design was used on a purposive convenience sample of 411 pregnant women in Jordan. Results were obtained through structured interviews, antenatal routine lab tests, physical measurements (height and weight), body mass index (BMI), thyroid function tests (free thyroxine [FT4] and 2e [TSH]), and Edinburgh postnatal depression scale. Descriptive statistics, including means, standard deviation, and inferential statistics, such as Pearson correlation, t-test, and ANOVA, were used to describe and examine the relationship among the study variables. Results: Based on the results, 58.4% of the participants had one to four pregnancies, and 54.5% had at least one abortion. Based on their weight before pregnancy, there was a high frequency of overweight (29.7%) and obesity (25%) among pregnant women. High maternal BMI for the mother is correlated significantly with pregnancy complications and offspring neurocognitive impairments. Additionally, maternal obesity is a risk factor for hypothyroidism. BMI was correlated with hypothyroidism (r=0.141, P=0.004), fetal distress (r=0.217, P=0.0001), postnatal depression (r=0.161, P=0.0001), and preterm labor (r=0.115, P=0.020). The thyroid function tests and thyroid stimulating hormone levels were correlated with maternal and fetal conditions, such as infertility, fetal death, hemorrhage, and cerebral palsy among children. Conclusion: High BMI associated with old age is a critical factor related to many maternal and infant health conditions. Repeated pregnancy failures, fetal health conditions, and maternal complications, including hypothyroidism, can be associated with maternal obesity. Healthcare providers should raise awareness among mothers and care providers on the serious conditions associated with obesity.
Evaluation of Safety from the Perspective of Patients Hospitalized in Medical and Surgical Wards
Authors:   Assistant Professor, Nursing Care Research Center, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran., Ehsani Maryam , Ashghali Farahani Mansoureh ,   Professor, Nursing Care Research Center, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran, Haghani Shima ,   Biostatistics (MSc), Nursing Care Research Center, Iran University of Medical Sciences, Tehran, Iran., Marandi Fatemeh ,   Nursing (MSc), Nursing care research center, school of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
Published: July 2023

Introduction: Patient feedback on safety-related factors provides valuable preventative information to manage safety and improve hospital care quality. Objective: This study aims to determine the perspective of hospitalized patients toward safety. These patients were admitted to the medical and surgical wards in two hospitals in Tehran, Iran. Materials and Methods: This research is a descriptive-analytical study. A total of 290 patients hospitalized in the medical and surgical wards of two hospitals in Tehran were recruited between April and November 2020. They were selected using a stratified sampling method with proportional allocation. Participants were requested to evaluate and report the safety factors using the patient measure of safety questionnaire. The obtained data were analyzed using the independent t-test, variance analysis, and Pearson correlation coefficient. Results: Fifty-three percent of the participants in this study were male, with a mean age of 50.75±17.36 years. Approximately one-fourth of the patients had cancer, with 35.1% suffering for 1 to 6 months. The patients’ most and least favorite perspectives mean scores were toward dignity and respect (3.80±1.07) and access to resources (3.31±0.66), respectively. Moreover, patients’ views on safety were related to their disease type (P=0.021).
Plight and Protection of Oroqen Mosuku
Authors: Wei Caiming
Published: July 2023

As a form of Oroqen oral literature, Mosukun is a cultural treasure of the Oroqen people and an intangible treasure of the Chinese nation. However, due to multifaceted factors, Mosukun is confronted with plights of protection and inheritance. The objective of the study is to explore the phenomena and causes of the plights which Oroqen Mosukun has faced by applying the method of Desk Research as well as providing some advice to improve the situation. The results of the study revealed that dilemmas of passing on Mosukun include the impact of modernity, the lack of inheritors and the alteration of the expression language etc. Under the analysis above, corresponding solutions are proposed for optimization. Adopting modern technology to preserve, expanding the inheritance groups, and cultivating groups of receivers are the available ways to improve the inheritance dilemmas of Oroqen Mosukun and form the continuity of culture.
The Spatial Position of Xi Jinping’s Thought on Ecological Rule of Law: From the Perspective of Marxist Space Theory
Authors: Guo Zhenxue , Wu Caixia
Published: July 2023

Space theory is an important part of Marxism. It is the source of the continuation, inheritance, and development of the space theory of New Marxism in the second half of the 20th century. The Marxist space theory adheres to the people-centered space position, which has had an undeniable impact on the post-Marxist party’s ruling philosophy, ruling guidance, and ruling strategy. There has formed a profound, extensive, and practical ecological rule of law, namely Xi Jinping’s thoughts on the ecological rule of law, in the great practice of leading the construction of ecological civilization in China in the new era since the 18th National Congress of the Communist Party of China. The idea of Xi Jinping’s thought of the ecological rule of law adheres to the people-centered space position, attaches great importance to building high-quality ecological space for the people, practically guarantees the equal enjoyment of high-quality ecological space by the people according to law, and advocates the construction of high-quality ecological space for all mankind.
Effect of Open Heart Surgery on Lung Complications with their Incidence and Fate – a Single Center Study
Authors: Ahmed Tawfiq , Rahim AM Asif , Hossain AHM Iftekher , Islam M Shahidul , Shahidullah AYM
Published: July 2023

This prospective study was designed to determine the incidence of pulmonary complications after open cardiac surgery as well as to identity predisposing factors of these complications at NICVD, Dhaka, Bangladesh. The cumulative incidence of pulmonary complications after open heart surgery was 16.85% (15of 89) with a mortality rate of 33.33% (5 of 15) and the overall mortality among all patients was 5.62% (5 of 89). Pulmonary complications occurred in 15.9% of patients with coronary artery revascularization, 11.53% in patients with valvular replacement and 26.31% in patients with congenital heart disease. ARDS occurred in 2.25% of patients with a mortality rate of about 100%,, pneumonia in 5.62%, atelectasis in 2.25%, pleural effusion in 5.62% and pneumothorax in 3.37%. The most predisposing factors were massive blood transfusion, re-exploration for control of post-operative bleeding, cardiopulmonary resuscitation and prolonged length stay in the intensive care unit.

Bangladesh Heart Journal 2023; 38(1): 8-12
Prediction of Short-Term Outcome after Primary Percutaneous Coronary Intervention by CADILLAC Risk Score
Authors: Kabir Md Khairul , Arefin Md Minhaj , Islam Md Shafiqul , Jahan Jafrin , Dutta Bijoy , Hasan Md Zahid , Hosen Md Imam , Shadly Tausif Amim , Bhuiyan Md Nazmul Hoque , Azam MG
Published: July 2023

Introduction: The CADILLAC risk score (CRS) has been developed and validated in the context of primary PCI as a reperfusion strategy for accurate risk stratification. Patients with low CRS have better outcome than those with intermediate to high CRS. However, further studies are needed to validate this score in our population.

Aim of the study: The present study was conducted to predict the short-term outcome after primary percutaneous coronary intervention (pPCI) by CRS. Method: This prospective observational study was conducted at the National Institute of Cardiovascular Diseases (NICVD), Dhaka, Bangladesh from March, 2019 to August, 2020, on 62 patients with two equally divided groups based on CRS: Group I with score 0-2 and Group II with e” 3. The score was calculated by summation of points gathered from each component of the score. Bleeding events, vascular access site complication, heart failure, cardiogenic shock, significant arrhythmia, major adverse cardiovascular and cerebrovascular events (MACCE), were observed during hospital stay and at 30- day follow up.

Result: Mean CRS of the groups were 0.45±0.85 and 4.71±1.74 respectively. Overall adverse outcome, both in-hospital and 30-day, were significantly higher in group II (12.9%vs.35%, p=0.003 and 0vs.22.6%, p=0.001 respectively). Heart failure (22.6%vs.6.5%, p=0.04; 19.4%vs.0, p=0.01) and MACCE (19.3%vs.3.2%, P=0.04; 16.1vs.0%, p=0.02) were significant during hospital stay and at 30-day follow up. Bleeding events (12.9%vs.0, p=0.03) and significant arrhythmia (6.5%vs.0, p=0.04) were significant during hospital stay. Length of hospital stay was also significantly shorter in group I (d”3days: 74.2%vs.35.5%; p= 0.01). The components of CRS except post-PCI TIMI (Thrombolysis in myocardial infarction) flow, intermediate to high CRS, male gender, diabetes mellitus, hypertension, were significant in univariate regression analysis. Moderate to high CRS (in-hospital and 30-day), left ventricular ejection fraction< 40% (inhospital), triple vessel disease (30-day) were significant in multivariate analysis. ROC curve analysis showed, area under the curve for CRS was 0.745 (95% CI: 0.616- 0.874; p=0.001). CRSe”3 predicted in-hospital outcome after pPCI with sensitivity and specificity of 35.5% and 87%, respectively.

Conclusion: In the setting of pPCI, low CRS is associated with better in-hospital outcome in comparison to intermediate to high CRS. Also, in comparison to intermediate to high CRS, low CRS is associated with better 30-day outcome after pPCI, However, for prediction of adverse short-term outcome after pPCI, CRS has got relatively low sensitivity and high specificity.

Bangladesh Heart Journal 2023; 38(1): 32-37