bluuebunny/crossref_metadata_2025 huggingface dataset:
Влияние основных конструктивных параметров сетчатого композитного адаптера космического аппарата на первую собственную частоту колебаний
Authors:   Государственный научно-исследовательский институт конструкционных материалов на основе графита «НИИграфит», Москва, Россия, Еременко А. А. , Азаров А. В. ,   Московский государственный технический университет им. Н.Э. Баумана, Москва, Россия
Published: August 2024

В настоящее время сетчатые композитные конструкции широко применяются в ракетно-космической технике в качестве переходных отсеков, стержневых элементов космических аппаратов, корпусов спутников, адаптеров полезной нагрузки и пр. Для всех перечисленных конструкций критически важным параметром, наравне с жесткостными и прочностными характеристиками, является минимальная собственная частота колебаний. В процессе выведения полезного груза на орбиту на ракету-носитель и полезный груз действуют динамические нагрузки, вследствие чего система испытывает колебания, при совпадении частоты которых с собственной частотой конструкции (системы) наблюдается явление резонанса, резко повышающее вероятность разрушения конструкции. Применение унифицированных базовых конструкций (платформ космических аппаратов) позволяет значительно сократить сроки разработки нового изделия, увеличить надежность (применяется уже отработанная на предыдущих изделиях платформа) и уменьшить стоимость доставки груза на орбиту. В работе исследовано влияние основных конструктивных параметров адаптера (высоты адаптера, высоты сечений ребер и угол наклона спиральных ребер) на первую собственную частоту. Значения собственных частот были получены с использованием метода конечных элементов, реализованного в коммерческом ПО «FEMAP with NX Nastran». Построена математическая модель, прогнозирующая способность которой была подтверждена расчетом методом конечных элементов. Используя полученную модель, можно определить оптимальные конструктивные параметры адаптера для достижения максимальной собственной частоты, а также спрогнозировать первую собственную частоту при любых параметрах адаптера из расчетной области. Представлена методика поиска оптимальных параметров для платформ космических аппаратов (силовой корпус и адаптер), позволяющая удовлетворить заданные требования к собственной частоте платформы.
Application of modern mathematical apparatus for determining the dynamic properties of vehicles
Authors: Taran I , Zhamanbayev B , Klymenko I , Beketov Y
Published: August 2024

Purpose. Study of hydraulic-mechanical transmissions in the process of braking a mining diesel locomotive and determining their efficiency. Methodology. The paper uses the technique of matrix analysis of transmissions by Prof. V.B. Samorodov, based on the division of the kinematic scheme into structural elements. The method was chosen as the basic method due to its universality and the possibility of implementation with the help of computer technology. The developed mathematical models of the vehicle braking process take into account the possibility of a smooth change (decrease and increase) of the transmission ratio and the torque applied to the executive bodies. Findings. The advantages and disadvantages of the use of hydromechanical stepless transmissions in the braking modes of the diesel locomotive are determined. It was mathematically proven that such transmissions are efficient, it is limited by methods of implementing braking. The results of the modelling allow to justify the braking control strategies of the locomotive equipped with a hydromechanical transmission. Originality. The technique of matrix mathematical modelling of transmissions that work as part of mining and transport machines has got further development. The developed mathematical model of the braking process of a mine diesel locomotive with HMT allowed to study the change in the kinematic and power parameters of the transmission in different operating conditions of diesel locomotives – movement on traction and transport ranges, on descent and ascent, at different initial braking speeds for all possible ways of implementing the process braking. The obtained results made it possible to substantiate the braking control strategies depending on the initial speed and traction power of the mining diesel locomotive. Practical value. The obtained results testify to the operational efficiency of the considered transmissions due to correctly selected strategies of braking control, which exclude the possibility of the occurrence of emergency modes of operation, failure, and reduction of the service life of the transmission elements. The practical value of the paper is confirmed by the social effect due to the improvement of labour safety in locomotive transport.
Features of the assessment of occupational risks under hazardous working conditions
Authors: Golinko V. I , Zabelina V. A
Published: August 2024

Purpose. To improve the process of assessing occupational risks caused by hazardous working conditions, taking into account the exposure of hazardous factors, as a quantitative characteristic of the intensity and duration of the hazardous factor, and the available results of certification of workplaces in terms of working conditions. Methodology. Theoretical studies are based on the use of the basic provisions of probability theory, methods of mathematical modeling, statistical processing of indicators of occupational morbidity and methods of risk assessment by constructing a matrix of consequences/likelihood according to the ISO 31010:2013 standard. Findings. A matrix of consequences/likelihood for assessing the overall occupational risk to the health of employees caused by hazardous working conditions is proposed, which includes five indicators characterizing the severity of the consequences, and five indicators characterizing the probability of an event (qualitative and score ones). The peculiarity of the matrix is that the probability score directly reflects the multiplicity of exceeding the permissible values of hazardous production factors established by regulatory legal acts which characterize working conditions. Originality. A new approach to determining the seriousness of the consequences of hazardous production factors has been proposed, which consists in taking into account the regularities of occurrence of occupational and work-caused morbidity of workers and the existing mechanisms for its prevention. The relationship between the prevalence of certain types of occupational morbidity of workers and specific working conditions (exposure to factors of the production environment) has been established. Practical value. The results of the study allow employees of safety departments to assess the overall occupational risk to the health of employees, caused by hazardous working conditions, directly on the basis of the available cards of working conditions obtained as a result of certification of workplaces on working condition. Based on the results of the assessment, it is possible to determine the permissible time of the employee’s work in hazardous working conditions, for which the permissible value of the risk of occupational disease is not exceeded.
The right to a safe environment: economic and legal guarantees of provision in Ukraine
Authors: Yarmol L , Baik O , Bernaziuk O , Stetsyuk N , Ilkiv N
Published: August 2024

Purpose. Analysis of the theoretical and applied principles and economic and legal status of ensuring guarantees of the right to a favorable environment (GRFE), identification of legal norms in this area that require clarification and development of recommendations for their improvement. Methodology. The research used the dialectical methods to identify the need to change the conceptual legal basis of the GRFE. The hermeneutic method was used to establish normative links between the right to a safe environment and other human rights; formal and legal method – for provision of an additional GRFE instrument appeal to the International Criminal Court in the matter of environmental crimes in wartime. The systemic-structural method was applied to propose delictual legal links between the norms of environmental law and the norms of other branches of law, where the mechanisms for ensuring the GRFE are formed. The method of analysis and synthesis was to establish the fact that the possibility of implementation of the GRFE should be a component not only of environmental, but also of national security of the state. Findings. It is proposed to strengthen the imperative character of the legislative GRFE norms; establish regulatory links between the right to a safe environment and other human rights; to establish delictual legal links between the norms of environmental law and the norms of other branches of law, where the mechanisms for ensuring the GRFE are being formed; to strengthen the effectiveness of legal norms in this area. Legal measures are suggested to strengthen the GRFE and mechanisms which ensure the ability of citizens to realize the right to a favorable environment. It is noted that the possibility to implement the GHBD should be a component not only of environmental, but also of national security of the state. Originality. It is proposed to change the conceptual legal basis of the GRFE, directing it to the maintenance of natural balance, as a prerequisite for ensuring the quality of life. Practical value. The legal norms related to the GRFE, which can lead to legal conflicts, have been identified and ways of solving these problems have been proposed.
Assessment of Suitable Growth Condition of Salvinia spp. for Sustainability of Floating Agriculture to Mitigate Climate Change Challenges on Crop Cultivation
Authors: Sultana Nargis , Mitra Shawon , Das Subroto Kumar
Published: August 2024

Floating agriculture is an indigenous cultivation practice in the southern waterlogged areas of Bangladesh. Water hyacinth and other macrophytes were utilized in this agricultural method to prepare the floating bed. Among the numerous macrophytes used as mulch in floating beds, Salvinia spp. is a common species. To meet the local farmer's demand, it is necessary to improve the growth rates of these macrophytes so that they can be available year-round for preparing floating beds. For this purpose, an experiment was conducted to assess the growth conditions of Salvinia spp. under various nutritional media. Salvinia molesta and Salvinia cucullata were cultivated in four healthy media to carry out the experiment. The experimental design used in the present investigation was a split-plot arrangement in a Randomized Block Design (RBD), where four nutrients (NO3-; PO43-; NH4+ and Urea) were assigned to the main plots, while five different concentrations of nutrient (0, 1, 5, 10 and 15 mM) were given to the sub-plots. Salvinia spp. growth was examined in terms of morphological and physiological responses and the distribution of nutrients. The highest relative growth rate (RGR) and biomass production (g DW) were found in the medium with one mM and five mM PO43- in the case of S. molesta and one mM NH4+ in the case of S. cucullata. It was also observed that the plant growth rate became suppressed when this macrophyte grew above the 5mM of nutrient concentration, and this suppressed condition turned into a toxic state when the organic nutrient concentration reached a concentration of 15 mM or above. In the case of Urea, this harmful condition starts with a concentration of 5 mM or more for S. molesta and any concentration for S. cucullata.Nonetheless, very few variations were found in how various plant tissues and species absorbed mineral concentrations. The overall findings from this experiment indicate that both PO43- and NH4+ concentrations of 1 mM and 5 mM are comparatively more suitable than NO3- and Urea for the growth and multiplication of Salvinia spp. However, more research is required in addition to varying the quantities of phosphate and ammonium to make a definitive choice.
J. of Sci. and Tech. Res. 5(1): 53-62, 2023
ANALISIS KEMAMPUAN LITERASI NUMERASI MELALUI SOAL HOTS DI SMA AL-MUNADIR KUALA MANDOR B
Authors: Surahmah Surahmah , Suriyana Suriyana , Novianti Metia
Published: August 2024

Penelitian ini mempunyai tujuan guna memahami kemampuan literasi numerasi peserta didik melalui soal HOTS di SMA Al-Munadir Kuala Mandor B. Metodologi penelitian yang dipakai ialah deskriptif dengan pendekatan kualitatif. Subjek studi ini, siswa kelas XI B yang berjumlah 20 orang. Pemilihan subjek dalam penelitian ini didapati dari skor perolehan tes dengan kategori tinggi, sedang, serta rendah, yang kemudian dipilih satu orang perwakilan dari setiap kategori. Tehnik penghimpunan informasi yang dipakai studi ini adalah tes serta wawancara. Perolehan studi ini ialah (1) Kemampuan literasi numerasi peserta didik di SMA Al-Munadir Kuala Mandor B masuk pada kategori rendah dengan prolehan rata-rata yaitu 55,2. (2) Kategori kemampuan literasi numerasi tinggi sebesar 10%, dengan kemampuan literasi numerasi baik karena memenuhi indikator literasi numerasi yakni, kemampuan menganalisis informasi yang dikemukakan dalam banyak rupa, kemampuan menggunakan simbol-simbol yang diperlukan dalam menyelesaikan masalah, kemampuan mengambil keputusan. (3) Kategori kemampuan literasi numerasi sedang sebesar 25%, dengan kemampuan literasi numerasi cukup baik karena memenuhi indikator literasi numerasi yakni: mampu menganalisis data yang dikemukakan dalam banyak rupa, kemampuan menggunakan simbol-simbol yang diperlukan dalam menyelesaikan masalah, kemampuan mengambil keputusan. (4) Subjek kategori kemampuan literasi numerasi rendah sebesar 65%, dengan kemampuan literasi numerasi yang kurang karena hanya memenuhi indikator literasi numerasi mampu menganalisis informasi dalam berbagai bentuk, berdasarkan indikator HOTS analisis dan evaluasi.
PENGEMBANGAN E-MODUL BERBASIS PJBL BERBANTUAN VIDEO ANIMASI UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF SISWA SMP
Authors: Fitriana Endang , Ramalisa Yelli , Pasaribu Feri Tiona
Published: August 2024

Jenis penelitian yang digunakan adalah penelitian pengembangan yang bertujuan untuk mengembangkan E-modul Berbasis PJBL dengan berbantuan video animasi dan mengetahui kualitas E-modul Berbasis PJBL dengan berbantuan video animasi untuk meningkatkan kemampuan berpikir kreatif siswa SMP. Metode penelitian yang digunakan adalah metode penelitian dan pengembangan. Model pengembangan yang digunakan menggunakan model ADDIE (analysis, design, development, implementation, evaluation). Penelitian ini dilaksanakan di SMP Negeri 14 Kota Jambi pada kelas VII H. Objek yang menjadi pusat dalam penelitian ini yaitu E-modul Berbasis PJBL dengan berbantuan video animasi untuk meningkatkan kemampuan berpikir kreatif siswa SMP. Teknik pengumpulan data pada penelitian ini menggunakan observasi, angket, tes kemampuan berpikir kreatif, dan dokumentasi. Teknik analisis data yang digunakan yaitu deskriptif kualitatif dan kuantitatif. Hasil penelitian yang diperoleh bahwa E-modul yang didesain menggunakan aplikasi Canva, isi materi perbandingan senilai dan berbalik nilai pada e-modul berbasis tahapan Project Based Learning (PjBL) yaitu menentukan pertanyaan mendasar, mendesain perencanaan proyek, menyusun jadwal proyek, memonitor siswa dan kemajuan proyek, menguji hasil, dan mengevaluasi pengalaman. Selain itu didalamnya juga mengandung tahapan indikator kemampuan berpikir kreatif matematis yang terdiri dari kelancaran (fluency), keluwesan (flexibility), orisinalitas (originality) dan detail (elaboration). E-modul yang didesain termasuk dalam kriteria valid, praktis, dan efektif untuk digunakan dalam pembelajaran. Hasil validasi tim ahli dari segi materi yaitu 87% (sangat valid) dan dari segi desain adalah 88% (sangat valid). Hasil angket kepraktisan oleh guru adalah 86% (sangat praktis) dan kepraktisan peserta didik adalah 87% (sangat praktis). Dan hasil angket respons keefektifan e-modul oleh peserta didik sebesar 85% (sangat efektif).
E-MODUL TRIGONOMETRI BERBASIS PENDEKATA N PROBLEM SOLVING UNTUK SISWA SMA
Authors: Mega Ningsih Mega , Sri Wahyuni Sri
Published: August 2024

Penelitia n ini bertujua n untu k mengetahui pengembanga n da n respo n peserta didi k terhadap hasil pengembanga n E-Modul Matematika denga n Smart Apps Creator Berbasis Pendekata n Problem Solving Pada Siswa SMA. Jenis penelitia n ini merupaka n penelitia n pengembanga n atau Researc h and Development (RD) denga n mengikuti tahap-tahap model pengembanga n Borg and Gall yang terdiri dari potensi da n masala h, pengumpula n data, desai n produ k, validasi desai n, revisi desai n, uji coba produ k da n revisi produ k. Subje k dalam penelitia n ini adala h siswa kelas X SMA Plus Bina Mandiri. Instrume n pengumpula n data menggunaka n validasi ahli da n angket respo n peserta didi k. Hasil dari penelitia n ini diperole h persentase rata-rata ahli media da n ahli materi sebesar 86% denga n kriteria “sangat laya k”. Respo n peserta didi k terhadap kemenarika n E-Modul Matematika denga n Smart Apps Creator Berbasis Pendekata n Problem Solving pada saat uji coba memperole h jawaba n “menari k” denga n nilai rata-rata persentase sebesar 79%. Maka dapat disimpulka n bahwa Pengembanga n E-Modul Matematika denga n Smart Apps Creator Berbasis Pendekata n Problem Solving suda h laya k da n menari k untu k digunaka n  dalam pembelajara n.
Factors that Influence the Satisfaction of Health Service Recipients in Hospitals: Systematic Literature Review
Authors: Astuti Eka Rati
Published: August 2024

One of the challenges in hospital health services is patient dissatisfaction. Patient satisfaction relates to their feelings about the health services received compared to their expectations. Improving the quality of hospital services is crucial for enhancing patient satisfaction.This study aims to find out the factors that can influence the satisfaction of health service recipients in hospitals. The literature review method was used for journals related to client satisfaction factors and health services in hospitals limited to the years 2019-2024. This research method includes 7 international journals, 4 international journals indexed by Scopus, and 5 national journals, 4 journals certified by Sinta (S3:1 S4: 3). Based on the results of the review, it was found that satisfaction with health services in hospitals was influenced by the following factors: physical evidence (2 journals), reliability (2 journals), responsiveness (2 journals), health insurance (2 journals), empathy (2 journals), religion (1 journal), respondent satisfaction (1 journal), assessment of health services (1 journal), health services (1 journal), limiting the number of patients (1 journal), and standard prevention (1 journal). In conclusion, factors that influence the satisfaction of health service recipients in hospitals include physicality, reliability, responsiveness, health insurance, and empathy.
An Overview Of Temperature And Quality Of Packed Red Cell (PRC) Components Based On Distance And Delivery Time
Authors: Panggayuh Ardi , Sudiwati Ni Luh Putu Eka , Ariani Nia Lukita , Nadhifah Azizatun , Rif'ati Septi Laily
Published: August 2024

The Indonesian Red Cross is responsible for the distribution of blood products to hospital blood banks. The daily blood distribution route will vary due to the fact that the number of blood requests and the number of hospital blood banks vary on a daily basis. The implementation of a cold chain system is one method of optimizing blood distribution and transportation activities. The objective of this investigation is to evaluate the temperature and quality of PRC components in relation to their delivery time and distance. This research method is quantitative-descriptive. The population of this study consisted of all blood that was donated to the hospital blood bank in Sidoarjo Regency between October and November 2022. The blood sample used in this study was collected from the UDD PMI Sidoarjo Regency. The sampling technique of accidental sampling would be employed to visually identify the quality of PRC and temperature. The results of this study indicated that 460 PRC bags were delivered to three hospital blood banks in the UDD PMI Sidoarjo Regency. The PRC did not experience lysis, and 50 bags (10.86%) of the 460 PRC bags experienced a temperature change of over 10 °C. Conclusion: The temperature of the dropped PRC components is influenced by the delivery time and distance. The SOP must be strictly adhered to by all officers who distribute and transport blood to guarantee that the quality of the blood remains in good condition.
Mapping Quranic Exegesis in West Java: Influential Figures and Linguistic Insights
Authors: Munir Moh. Sirojul , Anwar Hoirul
Published: August 2024

This article delves into an exploration of Tafsir Al-Quran works by influential scholars from the West of Java. Unlike traditional geographic delineations, this study does not restrict its focus to the administrative boundaries of West Java as a province but extends to broader regions in the western part of the island. The investigation employs a qualitative research methodology, primarily engaging in library research which involves the comprehensive collection and analysis of data from authoritative books on the subject. Moreover, the study is enriched by a manuscript study approach, where ancient and contemporary Tafsir texts authored by scholars from this region are examined in detail. Through this meticulous research, the study has uncovered numerous Tafsir works, each bearing the unique interpretative style of its author. The findings highlight the intellectual and theological contributions of these scholars, emphasizing the diversity and richness of Islamic scholarship in western Java. One of the distinctive features of these Tafsir works is their linguistic variety. The texts are found in Arabic, which is widely used in Islamic scholarly writings, as well as in Sundanese and Indonesian, which reflects the local linguistic and cultural integration into Islamic scholarship.The study not only sheds light on the specific Tafsir works and the scholars behind them but also paints a broader picture of the religious and cultural landscape in western Java. This approach provides valuable insights into how regional characteristics influence religious interpretation and contribute to the broader discourse in Islamic studies. The research is pivotal for scholars interested in regional Islamic studies, comparative religion, and the interplay between language, culture, and religious scholarship.
The Influence of Environmental Hygiene Factors and Water Consumption on Diarrhea: A Literature Review
Authors: Ramlah Muhammad Rudi Asyari , Wahyuningsih Nur Endah , Hanani Yusniar
Published: August 2024

Diarrhea is a major cause of morbidity and mortality in all age groups and regions in the world. Environmental factors and drinking water are risk factors for diarrhea. it is important to examine the influence of environmental hygiene factors and drinking water on the incidence of diarrhea. Therefore, this study presents information regarding the influence of environmental cleanliness and drinking water on diarrhea by reviewing empirical studies in previous and current research. In order to identify the influence of environmental cleanliness and drinking water factors on the incidence of diarrhea, a review of literature collected from the PubMed, Scopus, Google Scholar databases in English and Indonesian was carried out. Literature taken from the last 10 years, namely from 2014 to 2024 and in the form of full text publications. Environmental sanitation factors and good drinking water play an important role in determining how susceptible a person is to gastroenteritis or diarrhea. The availability of clean drinking water is the most important factor in preventing diarrhea. Lack of clean water has emerged as one of the main factors causing diarrhea. Access to proper and clean drinking water is obtained from protected drinking water sources, including tap water (taps), public hydrants, public taps, water terminals, rainwater reservoirs or protected springs and wells, drilled wells/pumps that are at least a distance away 10 meters from waste disposal facilities can prevent diarrhea.
RIGID PAVEMENT DESIGN FOR THE JAWAR ROAD SURABAYA CITY WITH MANUAL DESIGN OF ROAD PAVEMENT 2017
Authors: Putra Kurnia Hadi , Ingsih Ita Suhermin , Firmansyah Rizky
Published: August 2024

One type of highway pavement is currently being widely used in rigid pavement. Rigid pavement applied to the Jawar road Surabaya section, which connects the city of Surabaya and the city of Gresik, intended to improve the quality of roads in the West Surabaya industrial area, which is integrated with the North Gresik area and increases the economy's pace around the location. This planning uses the 2017 Road Pavement Design Manual Method with a focus on the thickness of the pavement. With a design life of 40 years and using a continuous pavement system with reinforcement, the capacity of this road is calculated based on the LHR survey carried out on this road segment, resulting in a vehicle load of 3.4 x 107ESA5. Based on the results of the analysis, the pavement thickness was 29.5 cm with the addition of 10cm thin concrete and 15cm drainage layer, longitudinal reinforcement Ã˜12 â€“ 200, transverse reinforcement Ã˜8 â€“ 150, dowels Ã˜28 â€“ 300, and tie bars Ã˜16 â€“ 300.
INFILTRATION WELLS ECO-DRAINAGE PLANNING AS A FLOOD PREVENTION EFFORT IN BINANGUN SUB-DISTRICT, BLITAR REGENCY
Authors: Fanani Zainal , Risma Dwi Atmajayani  , Nindya Yusniartanti
Published: August 2024

The existence of land use change and loss of water catchment areas causes environmental ecosystems to be disrupted. Previously, green land has changed its function to become a development area which causes an increase in the volume of surface water when it rains because the water is not reabsorbed by the soil. In October 2022, there was a flood in the Binangun sub-district which was caused by the overflow of the drainage canals and rivers due to the large volume of surface water that entered. As an effort to deal with the flooding problem that occurs, planning infiltration wells is an effective solution to reduce the volume of surface water in the Binangun sub-district. Infiltration well planning was carried out with hydrological analysis and design discharge with a rational calculation method. From the analysis, it was found that the planned debit value was 284.61m3/s. The soil permeability value was obtained from the Falling Head soil sample test. The permeability test results of the falling head method obtained soil permeability values ​​in 3 regions namely, North = 0.003094m/s, Middle = 0.002827m/s, South = 0.001525m/s. The planning results showed that the dimensions of the infiltration wells for the Southern region are R=0.5m, L=1.5m, and H=6m with the assumption that the number of design wells is 333 which can reduce the planned discharge in the Binangun sub-district area by 35%.
Keywords: Infiltration Wells; Floods; Drainage Planning.
HIGH QUALITY ECONOMICAL CONCRETE WITH VARYING COMPOSITIONS OF RECYCLED AGGREGATE AS A SUBSTITUTION OF COARSE AGGREGATE
Authors: Rahma Nindya Ayu Hapsari  , Haryadi Bambang , Sutarto Agung , Istianti Monica Ayu , Panduwijaya Joan Rafif , Lanjarsari Aulia Putri
Published: August 2024

The high level of infrastructure development at present forces old buildings to undergo repairs or even demolition to make way for new buildings that are more suitable and representative. The resulting demolition waste is usually discarded, becoming solid waste. The solution to the above problem is recycling the concrete waste as an alternative aggregate to replace some or all of the natural aggregates in the concrete mixture. Concrete with recycled aggregates is made with several composition variations of replacement to natural coarse aggregates, which is 0%, 25%, 35%, 45%, and 50%. The concrete will be tested for compressive strength at 28 days from the concrete mixture preparation. The research results showed that the highest compressive strength was found in the variation with a 25% replacement of natural coarse aggregates, which was 50.1 MPa, and the optimum compressive strength value is obtained at the variation of 23.51% recycled coarse aggregate substitution.
Keywords: Recycled Aggregate; Innovation; Eco-Green Concrete; Concrete Compressive Strength; Sikament NN.
ANALYSIS OF OCCUPATIONAL SAFETY AND HEALTH (K3) RISK IN THE CONSTRUCTION OF SAMPANG SOUTH RING ROAD (JLS) USING HAZID HIRA AND HAZOP METHODS
Authors: Mukti Hazin , Zabadi Fairus
Published: August 2024

Occupational Health and Safety (K3) is all engineering activities to support construction work in realizing the fulfillment of security, safety, health and sustainability standards that ensure construction engineering safety, workforce safety and health, public safety and environmental safety. The method used is HIRA, HAZID and HAZOP. In HIRA, there are 4 dominant risk variables that may occur during the construction of the South Ring Road (JLS) Sampang, namely: (X4.4), (X5.3), (X6.1), and (X6.2). To determine whether or not the variable data used using the HAZID method is to use a preliminary questionnaire which is distributed before the main questionnaire. the correlation value of each variable is obtained or it is called r count, then the r count can be compared with r table. To determine the risk response and recommendations that may occur using the HAZOP method is to use literature studies from previous journals as well as occupational safety and health standards. Thus, 19 recommendations for controlling the 4 dominant risks that may occur in the South Ring Road (JLS) Sampang project are obtained.
SPATIAL ANALYSIS IN CONSERVATION SITU IN BANTEN PROVINCE: CASE STUDY OF SITU KADUPAYUNG, PANDEGLANG REGENCY, BANTEN
Authors: Taufik Isvan , Sudrajat Endang , Gemilang Meysa Cahya
Published: August 2024

Spatial planning analysis is a way to identify the location and area of a site based on spatial structure and spatial patterns. The research aims to discuss Spatial Analysis of Site Conservation in Banten Province: Case Study of Situ Kadupayung, Pandeglang Regency, Banten. The research method uses survey methods and uses Geographic Information System (GIS) analysis, as well as site area and contour analysis methods. The research results show that the area based on the KIB in Situ Kadupayung is 40,000 m². From the results of GPS RTK measurefments, it is known that the area of Situ Kadupayung is 34,462 m2 / 3.44 Ha. The difference between the measurement results and the goods inventory card (KIB) data at Situ Kadupayung is -5.538 m² / -0.55 Ha. There are 2 (two) factors that can cause large differences between Goods Inventory Card (KIB) data, namely 1) Internal Factors: Measurement techniques used (methods and tools); Errors in inputting measurement results data; 2) External Factors: Natural Factors, namely sedimentation, and Non-Natural Factors (Society).
Keywords: Spatial Analysis; Conservation Situ; Banten Province
RECHARGE WELLS MODEL BASED ON SHAPE FACTORS FOR FLOOD MANAGEMENT IN KLOJEN DISTRICT, MALANG CITY
Authors: Rokhmawati Azizah , Fachrurozi Ilhamsyah  , Bambang Suprapto
Published: August 2024

Urban flood areas hit various regions in Indonesia, such as what happened in Malang City. Flooding occurred in several areas of Klojen District, including Wilis Street, LetJen Suprapto Street in Samaan Village, Bareng Raya Street II in Bareng Village, Retawu Street, and Pulosari Street. This research uses a recharge well model based on shape factors to discuss flood mitigation. Data analysis includes existing floods, conditions of the study area, and an applied model adjusted to soil permeability in the research area. They were mapping the area (A) and coefficient C using ArcGIS 10.8 2023 software. The model applied is an infiltration well design constructed from a concrete buis at the top and soil pores at the bottom. The design rainfall calculation results are 592.112 mm/day. The results of the analysis show that there are a total of 30 channels from Samaan Village, Bareng Village, and Gading Kasri Village, whose channel capacity is unable, causing flooding. The geometric factor value of 3.14 m has a planned water inflow discharge of 1.7626 m3/second. Klojen sub-district requires 66 recharge wells to overcome the flooding. The application for constructing infiltration wells was carried out only in the Gading Kasri sub-district area, namely 11 infiltration wells. The infiltration well is planned to use a concrete buis with dimensions of 50x100 m, height L as deep as 2 m, bottom of porus in 1 m, and total depth of channel H is 3 m.
Keywords: Recharge Wells; Shape Factors; Flood Management; Klojen Sub District.
ANALYSIS OF TRANSPORTATION MODE CHOICE IN MALANG CITY USING MULTINOMIAL LOGISTICS METHOD
Authors: Madu Sonia  , Meriana Wahyu Nugroho  , Titin Sundari  , Rahma Ramadhani
Published: August 2024

In every urban area, especially in the Malang area, modes of transportation are increasingly diverse, ranging from private vehicles, public transportation, to online-based transportation. This research aims to determine the choice of transportation mode using the multinominal logistics method. With this type of quantitative research and data sources through surveys conducted in 5 sub-districts of Malang City using the multinominal logistics method. The research results showed that 11% of respondents went from home to another place for work using private transportation, 3% of respondents were still students. 88% of working respondents and housewives chose public transportation, 97% of whom were still students. 9% of respondents who work and are housewives use online vehicles while 0% are still students.
Keywords: Daily Activities; Household; Multinomial Logistic Regression; Mode Choice; Spatial.
PENGARUH RISIKO KREDIT DAN LIKUIDITAS TERHADAP PROFITABILITAS BANK DENGAN TINGKAT KECUKUPAN MODAL SEBAGAI VARIABEL MODERATING
Authors: Lestaluhu Ramwati F , Siaila Steven
Published: August 2024

Abstract:This study discusses the effect of credit risk and liquidity on profitability by using the capital adequacy ratio as a moderating variable for banks listed on the Indonesian Stock Exchange. The population in this study amounted to 46 banking companies listed on the IDX. By using the purposive sampling method, the number of samples obtained and used was 24 companies with an observation period of 5 years from 2017-2021. The analytical method used is quantitative analysis. The results of this study indicate that credit risk has no significant effect on Profitability, Liquidity has no significant effect on Profitability and the moderating variable Capital Adequacy Level is not able to moderate the effect of Credit and Liquidity Risk on Profitability.Keywords: Credit Risk, Liquidity, Capital Adequacy Level, Profitability Abstrak:Penelitian ini membahas mengenai pengaruh Risiko Kredit dan Likuiditas terhadap Profitabililtas dengan menggunakan Tingkat Kecukupan Modal sebagai variable moderasi pada Bank yang listed di Bursa Efek Indonesia. Populasi dalam penelitian ini berjumlah 46 perusahaan perbankan yang tercatat di BEI. Dengan menggunakan metode purposive sampling, jumlah sampel yang didapatkan dan digunakan yaitu 24 perusahaan dengan periode pengamatan selama 5 tahun dari tahun 2017-2021. Metode analisis yang digunakan yaitu analisis kuantitatif. Hasil penelitian ini menunjukkan Risiko kredit berpengaruh tidak signifikan terahadap Profitabilitas, Likuiditas berpengaruh tidak signifikan terhadap Profitabilitas dan variable moderasi Tingkat Kecukupan Modal tidak mampu memoderasi pengaruh Risiko Kredit dan Likuiditas terhadap Profitabilitas.Kata kunci: Risiko Kredit, Likuiditas, Tingkat Kecukupan Modal, Profitabilitas
The Role of Teachers in Implementing 'Merdeka' (Freedom) Curriculum in Indonesia: A Case in an Indonesian Islamic Primary School
Authors: Ahillah Ade Irma , Shaefah Milkhahtus , Ghufron M Ali
Published: August 2024

This study aims to describe and analyze phenomena, events, social activities, attitudes, beliefs, perceptions, and thoughts of individuals and groups regarding the role of teachers in implementing a freedom curriculum. This study uses a phenomenological approach. This type of research is qualitative research that sees and hears more closely and in detail the individual's explanations and understanding of his experiences. The phenomenological approach is based on researchers' interest in examining the phenomena experienced by key informants more deeply. The research was conducted at MINU Buaran. The informants in this study were teachers and heads of madrasas. Data collection is carried out by several techniques, namely observation, interviews, and documentation studies. The results of this study concluded that implementing a freedom curriculum is a key factor in the world of education that must be ready and able to follow the development of science and technology, especially those related to education. It is undoubtedly not easy to create an atmosphere of learning effectively and maximally if you look at the role of the teacher, which is increasingly complex and the students' reaction when receiving learning is also one of the important factors demi manifested high achievements in learning. This is what makes a freedom curriculum to learn.
Kompetensi Profesional Guru sebagai Penunjang Prestasi Siswa: Studi Kasus di SMPIT Ruhama Tangerang Selatan
Authors: Suprianto Ahmad
Published: August 2024

This article aims to elaborate on the extent of the teacher's professional role in shaping student success towards achievement. The research objects in this research are class VIII students of SMPIT Ruhama South Tangerang in the field of Islamic Religious Education (PAI) subjects. This research uses the library research method with a descriptive analytical approach. Class VIII students as the main data were then carried out in-depth analysis of the data obtained through observation and interviews and compared with data related to the results of previous research. This article concludes that professional teachers have an important role in delivering achieving students, it's just that these professionals need media tools to support teaching.
Nasikh dan Mansukh dengan berbagai Permasalahannya dalam Studi Al-Qur’an
Authors: Happyana Luat
Published: August 2024

This article tries to examine the theme of Nasikh and Mansukh with various problems in the study of the Koran. The approach taken in this discussion is a qualitative approach using literature study. The conclusion from this research on Nasikh and Mansukh is that Nasikh can be interpreted as remover, substitute, changer or transferr. Meanwhile, mansukh is defined as something that is removed, replaced, changed or moved. The Nasikh component consists of a statement indicating that the existing law has been canceled, there must be a Naskh, there must be a Mansukh and there must be someone who is legally burdened with it. In the Naskh, conditions are required, namely that the law that was Mansukh is Sharia law, the argument for the abolition of this law is the Sharia book which came later from the book that was Mansukh, and the law of the book that is deleted or removed is not bound or limited by a certain time.
Key words: nasikh, mansukh, ulumul qur'an
DEVELOPMENT OF ELECTRONIC MODULES FOR DERIVATIVES OF ALGEBRAIC FUNCTIONS TO FACILITATE MATHEMATICAL COMPREHENSION ABILITY OF CLASS XI SENIOR HIGH SCHOOL STUDENTS
Authors: Orista Dwi , Armis
Published: August 2024

This study aims to produce an electronic module for derivatives of algebraic functions to facilitate the mathematical comprehension ability of class XI senior high school students who have met the requirements for validity and practicality. The development model used is the ADDIE model, which includes analysis, design, development, implementation, and evaluation. The sample in this assessment is class XII MAN 2 students in Pekanbaru City. Two data collection instruments for the electronic module development are a validation sheet to see the electronic module's validity level and a student response questionnaire to see the electronic module's practicality level. Based on the validation results from three experts, it was obtained that the electronic module has an average score of 3.47 with a very valid category. The trials conducted on students were carried out twice, namely small group trials and then large group trials. Based on the results of a small group trial of students, it was obtained that the electronic module had an average score of 3.67 with a very practical category. Based on the results of a large group trial of students, it was obtained that the electronic module had a score of 3.78 with a very practical category. Therefore, it is concluded that the electronic module of derived material of algebraic functions developed has met the requirements of validity and practicality to facilitate the mathematical comprehension ability of class XI SMA / MA students.
Psychological Analysis of Elsa’s Character in Novel “My Grandmother Asked Me to Tell You She’s Sorry” by Fredrik Backman
Authors: Gultom Yessy Frietama , Retnomurti Ayu Bandu , Kurniawaty Julia Bea
Published: August 2024

The objectives of this study are to describe the psychological aspects of the character's story and identify the many forms of psychology exhibited by the main character in the novel "My Grandmother Asked Me to Tell You She's Sorry" authored by Fredrik Backman. The research methodology employed is descriptive qualitative. The present study employs the theoretical framework proposed by Soto and John (2017, p. 8). The research findings indicate that the traits of Openness account for 5 (25% of the total) and are exemplified by Elsa's covert departure from her apartment to accompany her grandmother. Similarly, the traits of Conscientiousness also contribute to 5 (25% of the total), exemplified by Elsa's unwavering determination to complete the task assigned by her grandmother. Lastly, the traits of Neuroticism account for 5 (25% of the total) and are evidenced by Elsa feeling pressured by bullying from some of her classmates when she holds a different opinion from one of them. Data findings indicate that Agreeableness is characteristic of 3 (15%) of the participants. For instance, Elsa demonstrates conflict and disagreement with her mother after being summoned by the Principal for attacking one of her friends. On the other hand, Extraversion is characteristic of 2 (10%) of the participants. For instance, Elsa isolates herself from having many friends at school and prefers to confide in her grandmother.
FAKTOR REVOLUSI PERILAKU KONSUMEN ERA DIGITAL : SEBUAH TINJAUAN LITERATUR
Authors: Adha Suhroji
Published: August 2024

Penelitian ini bertujuan untuk mempelajari lebih lanjut tentang bagaimana perilaku konsumen membuat keputusan dengan memanfaatkan berbagai fenomena era digital untuk mendapatkan wawasan baru. Namun demikian, tinjauan literatur digunakan sebagai metode penelitian. Kemajuan teknologi telah berdampak tidak hanya pada bisnis tetapi juga pada semua aspek kehidupan. Perilaku konsumen telah berubah sebagai akibat dari era digital.  Faktor yang berpengaruh signifikan terhadap perilaku konsumen antara lain : Budaya, harus beradaptasi dengan kemajuan teknologi karena konsumen berbelanja berbeda secara online dan offline. Psikologi memiliki dampak yang lebih besar pada perilaku konsumen di era digital, khususnya pada persepsi, motivasi, pembelajaran, keyakinan, dan sikap. Teknologi digital atau perangkat seluler telah mempengaruhi perilaku konsumen di era digital untuk lima tahap pengambilan keputusan yaitu pengenalan kebutuhan, pencarian informasi, evaluasi alternatif, pembelian, dan pasca pembelian.
Kontribusi Kemampuan Berpikir Kritis terhadap Kemampuan Literasi Sains Siswa SMA Al-Azhar Syifa Budi Pekanbaru II
Authors: Maila Anantasya , Aviani Yolivia Irna
Published: August 2024

Tujuan dari penelitian ini adalah untuk menyelidiki kontribusi kemampuan berpikir kritis dan literasi sains di antara siswa yang terdaftar di SMA Al-Azhar Syifa Budi Pekanbaru II. Penelitian ini melibatkan 140 siswa yang saat ini terdaftar di sekolah tersebut dan dilakukan dengan menggunakan metodologi total sampling. Tingkat berpikir kritis dan literasi sains siswa dinilai dengan menggunakan tes pilihan ganda secara online, dan data yang dikumpulkan dianalisis menggunakan SPSS versi 25.0 dengan analisis regresi linier sederhana. Hasil dari penelitian tersebut mengungkapkan bahwa kemampuan berpikir kritis memiliki dampak yang signifikan terhadap kemampuan literasi sains siswa dengan tingkat 5%. Selain itu, penelitian ini menemukan bahwa kemampuan berpikir kritis dan literasi sains siswa tergolong tinggi. Ini menunjukkan bahwa kemampuan berpikir kritis memainkan peran penting dalam meningkatkan kemampuan literasi sains. Penelitian ini dapat menjadi acuan untuk meningkatkan kualitas pendidikan sains tidak hanya di sekolah yang diteliti, tetapi juga di sekolah-sekolah lain yang setingkat di masa mendatang.
Kata Kunci: Kemampuan berpikir kritis, kemampuan literasi sains, siswa SMA
 
Abstract
The purpose of this study was to investigate the contribution of critical thinking ability and science literacy among students enrolled in SMA Al-Azhar Syifa Budi Pekanbaru II. The study involved 140 students currently enrolled in the school and was conducted using total sampling methodology. Students' critical thinking and science literacy levels were assessed using an online multiple-choice test, and the collected data were analyzed using SPSS version 25.0 with simple linear regression analysis. The results of the study revealed that critical thinking ability had a significant impact on students' science literacy ability at the 5% level. In addition, the study found that students' critical thinking ability and science literacy were high. This suggests that critical thinking ability plays an important role in improving science literacy. This study can serve as a reference to improve the quality of science education not only in the school studied but also in other schools of the same level in the future.
Keywords: Critical thinking skill, science literacy skill, senior high school students
Peran Ibu Pemberdayaan Kesejahteraan Keluarga (PKK) dalam menangani Praktik Pola Asuh Anak
Authors: Salsabilla Sekar , Afrizal Stevany
Published: August 2024

Pemberdayaan kesejahteraan keluarga (PKK) menjadi garda terdepan dalam meningkatkan kualitas kesejahteraan keluarga. Dengan adanya PKK masyarakat dapat menerima pengetahuan dan motivasi dalam membina keluarga yang lebih unggul. Salah satu program PKK yang dibuat oleh desa Cibinong adalah menangani pola asuh anak sebagai bentuk tata laksana keluarga. Penerapan pola asuh anak yang belum sesuai dengan zaman dan banyak masyarakat yang meremehkan pola asuh anak di desa Cibinong,  menjadi fokus utama dalam penelitian ini. Tujuan dalam penelitian ini adalah untuk mengamati bagaimana peran PKK dalam menangani praktik pola asuh anak di desa Cibinong dengan mengaitkannya dengan perspektif teori Peran Biddle.  Penelitian yang dilakukan yaitu dengan menggunakan metode observasi, wawancara, dokumentasi, serta studi literatur yang bersumber dari jurnal, artikel, skripsi, buku dan lain sebagainya. Berdasarkan hasil penelitian peran PKK dalam menangani pola asuh anak di desa Cibinong cukup memberikan pengaruh yang cukup baik kepada masyarakat. sehingga dalam hal ini PKK berperan dalam mendukung implementasi pola asuh yang baik dengan memberikan dukungan dan bimbingan kepada keluarga dalam pengasuhan anak.
Peran Instagram dalam Perilaku Komunikasi Secara Langsung di Kalangan Mahasiswa Untirta
Authors: Hermsen Sheila , Afrizal Stevany
Published: August 2024

Sebagai platform komunikasi yang popular di kalangan remaja, Instagram menjadi salah satu media sosial yang paling sering digunakan di kalangan mahasiswa. Penelitian ini bertujuan untuk mengeksplorasi peran Instagram dalam perilaku komunikasi langsung di kalangan mahasiswa Universitas Sultan Ageng Tirtayasa (Untirta) menggunakan metode kualitatif. Pengumpulan data dilakukan dengan metode studi kepustakaan dan wawancara dengan sasaran mahasiswa Untirta pengguna Instagram dari berbagai fakultas. Temuan penelitian ini mengungkapkan bahwa Instagram sebagai salah satu platform popular di Indonesia, memiliki peran penting dalam memelihara hubungan individu yang terpisah secara geografis, dengan kata lain Instagram dapat mendekatkan yang jauh. Namun, di sisi lain, penggunaan Instagram yang berlebihan atau tidak bijak berpotensi menurunkan interaksi langsung dengan orang-orang di sekitar kita.