bluuebunny/crossref_metadata_2025 huggingface dataset:
Relationship of Carboxyhemoglobin (CoHb) And Hemoglobin (Hb) Levels In Active Smokers In Gresik Regency
Authors: Nur Azizah Roudhotin , Puspitasari Ayu , Lestari Indah
Published: March 2024

Smoking habits negatively affect the body to cause death. This is because cigarettes contain many harmful chemicals. The purpose of this study was to analyze the relationship between carboxyhemoglobin levels and hemoglobin levels in active smokers in Gresik Regency using the Conway dish method which was read with a spectrophotometer. This research was conducted in March-June 2023 at the Toxicology and Hematology Laboratory, Department of Technology, Medical Laboratory, Poltekkes, Ministry of Health, Surabaya using an analytical observational research type. The test material used is whole blood, with research variables of COHb and Hb levels. The results of the analysis showed an average COHB and Hb of 0.89% and 14.6 g / dl with a significance value of 0.304 using the Spearman correlation test. With the limitations of the variables studied, it can be concluded that there is no relationship between COHb and Hemoglobin in active smokers in Gresik Regency.
(10,10)-THRESHOLD SECRET-SHARING SCHEME USING EQUIVALENCE CLASSES OF INTEGERS MODULO A PRIME
Authors: Aidanwosa Aiwanose P. , Abdulkareem Abdulafeez O.
Published: March 2024

Introduction: The quest for increasing the security of data in secret-sharing schemes has attracted much attention in the world of cryptography. Several methods have been applied, and the application of the new technique, (n,n)-threshold secretsharing scheme based on equivalence classes, will be a perfect solution. Aims: The aim is to explore and construct strong knowledge in the theory and structure of the secret-sharing scheme on (n,n)- threshold secret-sharing scheme based on equivalence classes; (𝑋) = (𝑦 𝜖 𝑋: (𝑥, 𝑦)𝜖 ℝ) And achieve the following objectives: i. To investigate an (𝑛, 𝑛)-threshold secret-sharing scheme based on the equivalence classes of the prime over ℤ. ii. Investigation of the accuracy of such a scheme. Materials and Methods: The study uses the set of integers modulo a prime and modulo arithmetic on the set of integers. Results: The statistics on the coalition, security analysis, and information-theoretic efficiency are also discussed. Conclusion: The secret sharing scheme on (10,10)-threshold secret-sharing scheme based on equivalence classes of integers modulo a prime is perfect in terms of only qualified coalitions can obtain the secret and it is reliable by means of security. We have used the property of these classes to provide the reconstruction algorithms, and access structures and calculated the number of minimal coalitions of the scheme. This new system is ideal in that the size of the secret is equal to the size of the share.
Radon Assessment in Water Samples in a University Community in Osogbo Osun State
Authors: Olaoye M. A , Muniru E.O , Jegede O.A , Olagbaju P.O , Adegbola R.B , Mustapha A.O
Published: March 2024

Introduction: Radon is a radioactive gas and one of the leading causes of cancer at high concentrations globally. Inhalation or ingestion of radon-contaminated water through drinking, cooking, or bathing has reportedly increased human health risks. Measuring radon levels in water helps assess the potential health risks associated with ingestion and inhalation. Aims: In this study, the assessment of radon activity in water in some selected places within a university community in Osogbo, Osun State, Nigeria, was carried out. Materials and Methods: Fifteen (15) water (groundwater and borehole water) samples were collected, and the radon concentration was measured using a DURRIDGE RAD7 H2O accessory radon detector. Results: The results of the radon activity ranged from 6.3 ± 1.7 Bq/L to 60.8 ± 5.6 Bq/L with a mean of 21.33 ± 2.95 Bq/L. Nine (9) out of the fifteen (15) water samples measured were observed to be higher than EPA’s maximum contaminant level of 11.1 Bq/L, while the other six (6) water samples were within the range. The annual effective dose values lie within 3 -10 mSv/yr., reported by the International Commission on Radiological Protection. Conclusion: Water within the university community in Oshogbo, Osun State, is recommended for regular radon monitoring due to the high radon concentration above the Nigerian Standard for Drinking Water Quality. To Keywords: radon, Osogbo, water, RAD7 H2O
Determination of Polycyclic Aromatic Hydrocarbons in the Water of Ijegun-Egba Community of Lagos State, Nigeria
Authors: Tovide Oluwakemi , Eterigho Obaro Bernard , Adewale Peter Sanjo
Published: March 2024

Introduction: Polycyclic Aromatic Hydrocarbons (PAHs) are common pollutants in water that have been reported to cause severe health effects in humans and harm the ecosystem. Aims: This study examined the concentrations of PAHs in different water sources used for domestic purposes in Ijegun- Egba community. Materials and Methods: Twenty-four (24) groundwater samples were collected from four sites in Ijegun-Egba. The Physicochemical parameters were determined using standard methods and PAHs were determined through Gas chromatography-flame – Flame ionization detector. Results: The appearance, odour, and temperature were within the limits of World Health Organisation (WHO). Conductivity levels were within the WHO limit (2,500µS/cm) in well water (1,400µS/cm) and borehole water (1,470 µS/cm) except for river water (4,432.5 µS/cm) which was above WHO recommended limit (2,500µS/cm). pH was within limits in all sites studied except for borehole water (pH =4.0). Among the 16 PAHs, Naphthalene (NAPH) was generally the most abundant PAH (23.89% to Σ16PAHs). There was a significant difference (at < 0.005) in the level of PAHs in the four sources of water. Conclusion: River water has the highest level of PAHs. This points to the activities of the tank farms and suggests that petrol and oil deposits find themselves either through percolation, soil runoffs, or erosion into the water bodies. The Lagos State Environmental Protection Agency should continue to monitor the activities of oil tankers in Ijegun community oil deports. Truck stations should be built outside the community and the residents should avoid the use of water from rivers in Ijegun community.
PENGARUH PENGAWASAN DAN MOTIVASI TERHADAP KINERJA PEGAWAI INSPEKTORAT KABUPATEN TASIKMALAYA
Authors: Setia Rachmanda Yudi , Febiyani Lestari Dheri
Published: March 2024

The aims of this research are: 1). To find out about the supervisory measures implemented by the Tasikmalaya Regency Inspectorate. 2). To find out the motivation of Tasikmalaya Regency Inspectorate employees. 3). To find out the performance of Tasikmalaya Regency Inspectorate employees. 4). To determine the effect of supervision and motivation on the performance of Tasikmalaya Regency Inspectorate employees.
The research method used is descriptive and verification methods. Data collection techniques were carried out through field research and literature study. The data analysis technique is carried out through Correlation Coefficient analysis to find the "r" value and Coefficient of Determination (KD) analysis to calculate the magnitude of the influence of supervision and motivation on employee performance. Meanwhile, to test the hypothesis, the "t" test is used.
             The research results show that supervision, work motivation and employee performance at the Tasikmalaya Regency Inspectorate are in the very good category. The influence of supervision and work motivation on employee performance at the Tasikmalaya Regency Inspectorate is 67.40% and is supported by the calculated value (8.2592) > t table (2.015), so Ho is rejected and Ha is accepted. This means that supervision and work motivation have a significant influence on employee performance.
Keywords: Supervision, Motivation, and Performance
ANALISIS BREAK EVEN POINT SEBAGAI DASAR PERENCANAAN LABA PRODUK BOLU PISANG BLONDE PETAK PADA TOKO ROTI NEKO-NEKO BAKERY & CAKE CABANG PEMATANG SIANTAR
Authors: Siregar Liper , Ervina Nelly , Purnama Sari Eka , Eka Putri Debi , Nilam Cahyariani Vivi
Published: March 2024

The objectives of this research are to determine out the picture of total sales, fixed costs, variable costs, selling prices, and break even points as a basis for profit planning for banana blonde sponge products plots and to find out the break even point analysis as a basis for profit planning for banana blonde plot sponge products. The research design used in this research is field research and literature research. The analytical techniques used in this study are quantitative descriptive analysis and inductive analysis. The types of data used are qualitative data and quantitative data. The data sources used in this study are primary data and secondary data. Data collection techniques are carried out by documentation and interview methods. The results of the research can be concluded as follows Break even point of banana blonde sponge product plots from 2017 to 2021 in units and the rupiah has increased. The level of margin of safety for banana blonde plot products from 2017 to 2021 has increased.
Keywords: Break Even Point Analysis, Profit Planning
A relação entre a infecção por Covid-19 e a infertilidade masculina: uma revisão bibliográfica.
Authors: Lima Caio , Leonel de Farias Silva Ana Beatriz , Rodrigues Dias Amanda Lorena , Da Silva Layla Alves , Melo Santos Gabriela Karoline , Zaia Virgínia Maria
Published: March 2024

Introdução: O surgimento da nova cepa do SARS-CoV (coronavírus) deu início à pandemia dessa doença que, inicialmente, fora considerada uma condição que atacava o sistema respiratório humano. Todavia, estudos recentes mostram que o impacto do vírus é multissistêmico, atingindo diversos órgãos humanos, incluindo os testículos, fato que suscita a discussão do impacto da infecção pelo vírus na fertilidade masculina. Objetivo: Estabelecer a relação entre a infecção pelo corona vírus e a infertilidade masculina. Metodologia: Estudo de revisão bibliográfica qualitativa, conduzido de seguinte maneira: delimitação do tema e da questão de pesquisa, busca na literatura, seleção dos materiais compatíveis com o objetivo, a partir de uma análise crítica, leitura e extração das principais informações, interpretação dos resultados e construção da revisão de forma escrita. Para a seleção da literatura, foram buscados em bases de dados artigos sobre “A Relação entre a COVID-19 e infertilidade masculina” e “Relação entre SARS-CoV-2 e a infertilidade masculina”, além das palavras chave “COVID-19”, “Infertilidade” e “Sistema genital masculino”. Foram escolhidos os artigos mais atuais e mais compatíveis com o objetivo do artigo. Resultados e Discussão: Entre os artigos encontrados, foram selecionados 11, os quais revelaram a presença da enzima ECA2 nos testículos, causando algumas modificações no âmbito da reprodução masculina, manifestando-se por diminuições nas concentrações de hormônios, além de comprometimento na qualidade seminal, do funcionamento de células específicas e de suas funções, evidenciado pela redução da concentração, mobilidade e retenção de espermatozoides, além de inflamações (orquite) e disfunção erétil. Conclusão: Tudo isso evidencia a necessidade de maiores avaliações do tema e da elaboração de tratamentos que visem reverter os impactos do vírus na fertilidade masculina.
Foreword
Authors: Naidoo Kammila
Published: March 2024

I was delighted to open the conference on ‘Violence Against Children’ organized by the Department of Religion Studies, at the Universityof Johannesburg, in partnership with the New Testament Society of Southern Africa (NTSSA). I am extremely pleased that a special issue on the topic has been produced so briskly. Although there is currently much work being done on violence, there is insufficient interdisciplinary and collaborative work on how violence configures the lives of children in Southern African countries. One does not hear of conferences on children or children’s rights as often as one might hear about initiatives on other compelling topics. This coming together of scholars to reflect on the experiences and lived realities of children – and, on the theme of childrenand violence – is exciting and timely.
Currently, there are more than 2 billion children in the world, with the highest proportion living in sub-Saharan Africa. By the middle of this century, more than 40 percent of children younger than 5 years will be resident here. It is often pointed out that a child’s life chances are shaped by the place of birth, year of birth, and privileges of the natal familial context – in this regard, class, race, nationality, regionality, and gender are some of the key predictors of a child’s future. Many countries face entrenched inequalities and disparities, thus economic, sociopolitical,cultural, religious, and communal factors often have considerable and defining impacts on a child’s future well-being and success. Interventionsto create equality of opportunities and mitigate inherited disadvantages have been considerable. Despite government and civil society efforts, thesituation of children today remains dire. This is distressing to note for all who work in this field and who acknowledge that a country’s future stability, growth, and development, are inextricably linked to the ways in which this youngest cohort is treated, catered for, inspired, and afforded economic, social, and educational opportunities.
Honouring Children
Authors: Kpalam Ebenezer Tetteh
Published: March 2024

The views held about the humanity of children influence faith praxis with regard to children. Recognizing the full humanity of children will help pose questions that will lead to critical reflections on theories and practices thatunderpin the lived realities of neglect, abuse and violence against children. It is said that a faulty anthropology produces a faulty theology, and a faulty theology produces a skewed anthropology. It is argued that views of children that harm them in daily life could be connected with views of Godas authoritative, hierarchal, powerful and strong, a God who punishes and disciplines. There is, therefore, the need to explicate a Christian view ofchildren that honours the dignity and humanity of children and could result in faith practices that are liberating. The Trinity could serve as a framework for a theological anthropology of children. The paper explores insights from key scholars such as Miroslav Volf (1998), Jürgen Moltmann (1991) and Catherine LaCugna (1991) on a relational view of the Trinity to glean resources that could influence a theological understanding of the personhood of children: resources which recognise the full humanity of children and honour their dignity, and interdependence as well as mutuality in faith communities and society. The paper posits that a relational view of the Trinity could provide a sounder foundation for a deeply relational and non-hierarchical Christian view of children that arehonouring, and therefore, promotes faith praxis that is liberating and encourages flourishing.
“Ikwekwe yinja1 (a Boy is a Dog)”
Authors: Ngqeza Zukile
Published: March 2024

In contemporary society, the status of children as fully human is often contested and/or not accepted. The idea that children are not fully human has resulted in a plethora of abuses, including the denial of children’s rights, voices, and agency both in biblical texts and in contemporary society. Notwithstanding, scholars like Marcia Bunge acknowledge that in the Judeo-Christian bible “infants and children are also whole and complete human beings made in the image of God” (2012:65). Many times, the ways in which children are treated in biblical texts (in so far as adults make decisions without their (children) approval, e.g., Abraham’s decision to sacrifice Isaac, Jephthah’s decision to kill her daughter in honour of his agreement with Yahweh, the killing of the boy children during the time of Pharoah and King Herod exhibit the idea that children are not fully human. Since Christians rely on the Bible for inspiration and conduct in both private and public life, it is necessary to study the ways in which children were treated in biblical times. Until recently, biblical scholars did not have much of a deliberate focus on studying children and how they are treated in the Bible.
Engaging the Mechanisms of Faith?
Authors: Palm Selina , Eyber Carola
Published: March 2024

Violence against children is shaped by social norms which are frequently underpinned by faith-related beliefs and values. There isrenewed global recognition of the role of religions in legitimating or challenging harmful attitudes and practices, and this highlights the relevance and influence of faith communities in child protection. Faith communities may also have a unique role to play by engaging spiritual capital and faith mechanisms for positive change. These approaches go beyond an instrumentalised yet importantrole in service provision alone, to also transform harmful beliefs and offer positive alternatives grounded in faith mandates. This article draws on insights from a 2019 scoping study that explored positive and negative beliefs across multiple faith traditions that shape the perpetration, justification, or engagement to end violence against children. The study included three research components: a literature review, a case study submission process, and key informant interviews with experts on child violence working with diverse faith communities. Its findings show many ways in which religion’s spiritual capital can either help place children at society’s centre or can support harmful hierarchies of power that enable violence against children and seek to resist positive change.
Support Services Provided by a Child and Youth Care Centre (CYCC) to Adolescent Witnesses of Domestic Violence
Authors: Rasool Shahana , Swart Suzanne
Published: March 2024

Objective: This article presents the results of a case study conducted at a Child and Youth Care Centre (CYCC) in Pretoria, South Africa, on social service practitioners’ (SSP) views of the support services provided by a CYCC to adolescent witnesses of domestic violence. These support services are explored in terms of four inter-dependent levels including the micro, meso, exo and macro levels of the Ecological Theory, as described by Bronfenbrenner (1979).Method: For this study, a qualitative holistic case study design was adopted. This single case study design was chosen as information was gathered from various sources in only one CYCC. Information was triangulated by using various sources of data, that is interviews with SSPs and the children, as well as the policies of the CYCC regarding services offered for children who have witnessed domestic violence.Results: This study revealed that there are no specialised services at the identified CYCC to support adolescent witnesses of domestic violence. The services that are available seem to be generic and aimed at addressing problem behaviours in children and adolescents, rather than providing proactive, therapeutic support to deal with trauma such as witnessing physical and verbal domestic violence in their home of origin.
PACWIMA and the Transformation of Fijian Women in the Maritime Sector
Authors: Ningrum Surya Ningsi Pratiwi
Published: March 2024

The Pacific Women in Maritime Organization (PACWIMA) is a regional organization in the Pacific focused on empowering women to enhance their participation in the maritime sector. This regional organization serves as an international response to crucial issues such as gender inequality and sexual harassment, which contribute to the limited involvement of women in the maritime sector. Island nations like Fiji, heavily reliant on the maritime sector as a primary driver of national progress, also face these challenges. Through this research, we can gain insights into PACWIMA's role in addressing gender issues in Fiji's maritime sector and its contribution to promoting increased female participation. The study employs a qualitative research method with a case study framework and utilizes a feminist perspective, particularly liberal feminism, to analyze gender issues in this context. The findings indicate that PACWIMA can enhance women's roles in Fiji's maritime sector and mitigate gender-related problems within the industry. Beyond promoting gender equality in the maritime sector, PACWIMA also contributes to national economic stability by actively involving women as economic actors in the maritime sector.
Understanding Acharya’s Concept on Norms Localization: A Lesson Learned from Localization of Transnational Norms on Banning Female Genital Mutilation (FGM) in Gorontalo, Indonesia
Authors: Putri Safriska Desna
Published: March 2024

This paper is a critical review of Amitav Acharya's concept related to the process of global norm adaptation. Acharya wrote that norm internalization leads to three possible outcomes, i.e., the norms being accepted (norm displacement), adapted and modified (localization), or rejected (resistance rejection). This paper will analyze the localization of transnational norms to the domestic sphere, both the process, and its result. To understand Acharya's concept, the authors use a case study of global norm localization on anti Female Genital Mutilation (FGM) in Gorontalo, Indonesia. In Gorontalo, the global norm of FGM was initially accepted by the people and was implemented  as government policies. However, later on there was rejection by the people which pressured for the modification of the regulation. According to Acharya, this was made possible by the role of key actor of norm adaptation, which are the local agents.This paper tries to answer the question "How is the process of localization of transnational norms in the case study of female genital mutilation in Gorontalo, Indonesia?" which then contributes to the identification of the different factors that facilitate local agents to successfully modify the transnational norms imposed to the local settings.
The Contributions of Nahdlatul Ulama to World Peace: A Taxonomy Literature Review
Authors: Hamid Imron Rosyadi , Muhammad Iqbal Fajri Aji Said
Published: March 2024

Entering a century after its establishment, it goes without saying that Nahdlatul Ulama (NU) has significantly contributed to World Peace through its engagements in societies, ranging from the promotion of moderate values to addressing conflicts in many countries. However, some empirical phenomena, especially when it was carried out by a faith-based entity, often get portrayed differently in academic settings. How do NU’s contributions to World Peace get incorporated into academic discourse? Using the taxonomy method, this article aims to analyze the contributions of NU to World Peace in the existing academic literature. It maps the consensus and ongoing debate on how NU exert its influence for peace and divides the literature into four taxonomical themes; (1) norm dissemination;(2) international diplomacy and peace-brokering; (3) education practices, and; (4) political practices. This paper concludes that NU’s contributions are widely recognized in academic discourse, but some gaps still need to be addressed in further research
A ANALISIS POLA SEBARAN SPBU DI KOTA DENPASAR
Authors: Suciptawati Ni Luh Putu , Dipa I Putu Gede Prada , Pradantya Putra Nyoman Gede Mas
Published: March 2024

The existence of public fuel filling stations (SPBU) is crucial in big cities so that vehicle mobility in the city can run smoothly. Denpasar City with an area of ​​127.78 km2 consisting of four sub-districts has 49 gas stations. Until now, the distribution pattern of gas stations in the city of Denpasar is not yet known. This study aims to determine the pattern of distribution of gas stations in Denpasar city. To obtain data, the distance between one gas stations and the nearest gas stations are measured using GPS. By using the nearest neighbor method, it is found that the distribution pattern of gas stations in Denpasar city are random. The random distribution pattern shows that all sub-districts in Denpasar city have gas stations but not evenly distributed. With this result, it is hoped that if anyone wants to build a gas station, it is advisable to build it in an area where there is no gas station close by
Implementasi Model Persediaan Q Probabilistik Dalam Perencanaan Dan Pengendalian Persediaan Bahan Baku Produksi Teh Botol Sosro
Authors: Br Tarigan Julia Lowrensa
Published: March 2024

Abstract

PT. Sinar Sosro is a beverage manufacturing company. One of the products of PT. Sinar Sosro, which is known and much sought after by the general public, is Teh Botol Sosro. The uncertain demand for Teh Botol Sosro causes the supply system to be uncontrolled, so that market demand is not met. To overcome this problem, the author uses the Holt-Winters Exponential Smoothing method which aims to predict the need for raw materials for tea and sugar in order to meet production needs in the future, and to minimize raw material inventory costs, the Continuous Review System method is used. Based on the results of calculations using Holt-Winters Exponential Smoothing, the demand for tea is 45,612.88 kg and sugar is 651,538.81 kg in one year of use. And based on the results of calculations using the continuous review system method, the total cost of tea supplies is Rp. 2,813,404,544 where kg and kg. And also obtained the total cost of sugar supplies Rp. 7,253,604,988 where kg and  kg. So that the company can save about 6.35% and 4.44% of the total cost of supplying raw materials for tea and granulated sugar based on company policy.

Keywords: Holt-Winters Exponential Smoothing, Continuous Review System

 

Abstrak

PT. Sinar Sosro merupakan perusahaan manufaktur produksi minuman. Salah satu produk PT. Sinar Sosro yang dikenal dan banyak diminati oleh masyarakat umum adalah Teh Botol Sosro. Permintaan akan Teh Botol Sosro yang tidak pasti menyebabkan tidak terkendalinya sistem persediaan, sehingga permintaan pasar tidak terpenuhi. Untuk mengatasi problematika tersebut, penulis menggunakan metode Holt-Winters Exponential Smoothing yang bertujuan untuk memprediksi kebutuhan bahan baku teh dan gula agar terpenuhinya kebutuhan produksi dimasa yang akan datang, dan untuk meminimumkan biaya persediaan bahan baku digunakan metode Continous Review System. Berdasarkan hasil perhitungan menggunakan Holt-Winters Exponential Smoothing diperoleh permintaan teh sebanyak 45.612,88 kg dan gula pasir sebanyak 651.538,81 kg dalam satu tahun pemakaian. Dan berdasarkan hasil perhitungan menggunakan metode continuous review system diperoleh total biaya persediaan teh Rp. 2.813.404.544 dimana kg dan kg. Dan diperoleh juga total biaya persediaan gula Rp. 7.253.604.988 dimana kg dan  kg. Sehingga perusahaan dapat menghemat sekitar 6,35% dan 4,44% dari total biaya persediaan bahan baku teh dan gula pasir berdasarkan kebijakan perusahaan.

Kata Kunci: Holt-Winters Exponential Smoothing, Continuous Review System
Upaya Pereduksian Emisi Karbon Dioksida (CO2) di Indonesia melalui Analisis Integrasi Power-to-Gas dengan PLTU Batubara
Authors: Zaky Rauzan Fikri Muhammad , Sari Dessy Agustina
Published: March 2024

Sektor pembangkit listrik sebagai punggung utama energi nasional masih didominasi oleh bahan bakar fosil khususnya batubara. Emisi gas karbon dioksida (CO2) yang dihasilkan dari proses pembakaran batubara menimbulkan banyak dampak buruk pada bidang lingkungan dan kesehatan masyarakat. Sebagai upaya reduksi emisi CO2 yang dihasilkan, Power-to-Gas (PtG) menawarkan solusi yang efektif guna mengatasi masalah emisi dengan mengubahnya menjadi energi. Sistem PtG terdiri dari proses carbon capture (penangkapan karbon), elektrolisis dan metanasi. Melalui sistem PtG, emisi CO2 dari PLTU (Pembangkit Listrik Tenaga Uap) dapat diubah menjadi gas metana (CH4) dalam bentuk syngas (gas sintesis). Metode pada studi ini adalah memetakan sebaran PLTU Indonesia di tahun 2021, memperkirakan emisi CO2 dan mereduksinya melalui carbon capture, serta menghitung estimasi produksi syngas. Estimasi emisi CO2 dari PLTU mencapai 62,5 juta ton dan mampu direduksi hingga 28,15 juta ton melalui pengintegrasian sistem PtG. Perolehan syngas diperkirakan mencapai 0,255 TSCF (Triliun Standard Cubic Feet) atau setara dengan 0,614% dari total cadangan gas alam Indonesia. Integrasi sistem PtG dengan PLTU batubara di Indonesia memiliki prospek yang menjanjikan dan memberikan peluang kajian lebih lanjut untuk mengenai pengembangannya.

 

The electricity generation sector, which is the backbone of national energy, is still dominated by fossil fuels, especially coal. The carbon dioxide (CO2) emissions resulting from the combustion of coal have many adverse effects on the environment and public health. To reduce CO2 emissions, Power-to-Gas (PtG) offers an effective solution to convert them into energy. The PtG system consists of carbon capture, electrolysis, and methanation processes. This system can convert CO2 emissions from coal-fired power plants into methane gas (CH4) in the form of syngas. The methodology used in this study involves mapping the distribution of Indonesian coal-fired power plants in 2021, estimating their CO2 emissions, reducing them through carbon capture, and calculating the estimated syngas production. The estimated CO2 emissions from the PLTU reach 62.5 million tonnes and can be reduced by up to 28.15 million tonnes through the integration of PtG systems. The acquisition of syngas is estimated to reach 0.255 TSCF (Trillion Standard Cubic Feet), or equivalent to 0.614% of Indonesia's total natural gas reserves. The integration of PtG systems with coal-fired power plants in Indonesia has promising prospects and provides opportunities for further study on its development.
Evaluasi Menara Distilasi melalui Program Aspen Hysys
Authors: Miledhiya Syabrina Alfisyahri , Sari Dessy Agustina
Published: March 2024

PT XXX merupakan pabrik produksi asam formiat pertama dan satu-satunya di Asia Tenggara. Proses produksi yang berlangsung di dalam pabrik terdiri dari dua tahap utama, yaitu tahap pembuatan metil format dan tahap pembentukan asam formiat. Bahan baku utama yang digunakan dalam proses produksi ini diantaranya gas karbon monoksida (CO), metanol (CH3OH), katalis yang berupa kalium metoksida (KOCH3), dan air (H2O). Asam formiat merupakan salah satu bahan kimia yang dapat digunakan untuk kepentingan industri seperti dalam industri karet yaitu sebagai bahan koagulan karet alam dalam industri farmasi,terutama desinfektan obat-obatan dan dipakai sebagai sebagai zat pengawetan dalam industri tekstil digunakan dalam proses drying dan finishing sebagai conditioner, dalam industri kulit digunakan untuk menetralisasi kapur,juga juga digunakan untuk mengasamkan makanan ternak. Maka dari itu diadakannya perbandingan antara simulasi Aspen Hysys dengan perhitungan manual agar mengetahui mana yang paling optimal dan setelah dilakukan keduanya didapatkanlah masih yang berbeda dari hasil keduanya dan yang paling optimal adalah menggunakan perhitungan manual atau menggunakan persamaan neraca massa.

 

PT XXX is the first and only formic acid production plant in Southeast Asia. The production process that takes place at the plant consists of two main stages, namely the methyl formate production stage and the formic acid production stage. The main raw materials used in this production process are carbon monoxide (CO) gas, methanol (CH3OH), a catalyst in the form of potassium methoxide (KOCH3), and water (H2O). Formic acid is one of the chemicals that can be used for industrial purposes, e.g., in the rubber industry, as a natural rubber coagulant; in the pharmaceutical industry, especially for disinfecting drugs; as a preservative; in the textile industry, as a conditioner in the drying and finishing process; in the leather industry, to neutralize lime; and also to acidify animal feed. Therefore, a comparison was made between the Aspen Hysys simulation and the manual calculations to find out which was the most optimal, and after doing both, it was found that there were still different results from both, and the most optimal was to use the manual calculations or to use the mass balance equation.
Analisa Kebisingan Pada Alat Berat Wheel Loader Wa-350 Berdasarkan Perbandingan Jarak 50, 100, 150 Cm Dan Kapasitas
Authors: Sihombing Suriady , Nababan Wilson Sabastian , Tampubolon Miduk , Turnip Cris Stevan
Published: March 2024

Wheel loader is a tool that facilitates work by using hydraulic energy. Wheel loader testing is carried out by looking for noise data arising in the combustion chamber. There are several stages that must be done, namely the first step is to prepare a sound level meter as a noise detection device for heavy equipment, wheel loader, then take measurements with several variations in the distance between the combustion chamber and the sound level meter. In the next step we can find out the noise level read at the sound level meter with ideal, medium, and maximum rotation on the WA-350 wheel loader. So that the Noise Threshold Value according to Permenaker No. per-51 / MEN / 1999, ACGIH, 2008 and SNI 16-7063-2004 is 85 dB. So the noise produced by the Wheel Loader above the NAB Permenaker 104.7dB can cause tingling, unwell, hearing saturation, stomach pain, and circulatory problems. It is recommended that workers are required to use earmuffs or ear muffs.
Analisa Pengaruh Pendingin Terhadap Struktur Mikro Dan Sifat Mekanik Pada Baja ST 60
Authors: Siagian Parulian , Nababan Wilson Sabastian , Manurung Charles S.P , Lumbangaol Partahi , Siagian Lestina , Manurung Wany Chytra
Published: March 2024

The field of industry that produces human needs is growing rapidly. Encouraging increased productivity with iron metal-based machine components. Using quality materials, and certified. This research uses ST 60 steel with a carbon content of 0.48%.. The research process that will be carried out is Heat treatment is needed to minimize failure, change the structure, and form the desired properties, the rapid cooling process to produce a comparison of hardness in material variations, hardness testing to determine the hardness of a material, and observation of microstructure to observe the type of microstructure formed after heat treatment and without heat treatment. After testing, the heat treatment process greatly affects changes in the mechanical properties of the material, as evidenced by the increase in hardness values which initially before the heat treatment process amounted to 194.6 Kgrf / to 255.53 Kgrf / with SAE 40 lubricant cooling media, 220.43 Kgrf / with 50% lubricant cooling media with 50% water mixture, and 300, 7 Kgrf/ with long life coolant media and it is proven that in each material given heat treatment the hardness value has increased as well, before heat treatment the hardness value in ST 60 steel is only 194.6 Kgrf/, experiencing an increase in mechanical properties, namely work with SAE 40 lubricant cooling media with a value of 255.53 Kgrf/, 50% lubricant cooling media with 50% water mixture worth 220.43 Kgrf/ and long life coolant of 300.7 Kgrf/.
Preferred Oral Corrective Feedback through Existing Internalized Language Prejudice of Students in the Philippines
Authors: Yaneza Monica Louise , Miralles Claire Rose , Morales Jv Andrew , Cao Geneva , Cruz John Louie , Orga Ma. Ericca , Reodava Kurt Christian
Published: March 2024

Following the 2022 Program for International Student Assessment (PISA) test results, it was found out that the Philippines ranked 76th in reading comprehension among 81 PISA-participating countries. Students from the Philippines are still among the least proficient in the world in reading comprehension. With the country performing below the standards and criterion set by the organization, the researchers investigate internalized language prejudice as learners’ primary obstruction in acquiring the English language. Provided that the Oral Corrective Feedback (OCF) is essential for students’ learning process and performing separate functions in acquiring the English language, this paper aims to figure out their preferred OCF in acquiring the language. Furthermore, the proponents of the study delve into the reasons of the selected students when given an OCF in connection and relevance with how internalized language prejudice, stereotypes, and preconceived notions come into play in terms of the effectiveness of the English language learning and teaching. Lastly, the paper used  mixed methods in gathering data: quantitative through an online survey form and qualitative through Focus Group Discussions (FGD).
Phonological Awareness of English among Saudi Learners: An Examination of the Role of Lexical Status and Intra-syllabic Phonological Unit
Authors: Alasmari Amal
Published: March 2024

This study explores phonological awareness ability in the second language. Although some studies have examined L2 phonological awareness, most of these studies have not provided sufficient details on the type of stimulus items employed in these studies nor considered the possible effect of some linguistic factors on the results. Thus, the study aims to explore the impact of the lexical status of the item on phonological awareness in L2. In addition, the study examines the preferred intra-syllabic phonological unit in L2 among Saudi university students. Specifically, the study examines the effect of the lexical status (word vs non-word) and the intra-syllabic phonological unit (onset-rime vs. body-coda) on the phonological awareness of English. The participants were 48 university students majoring in English language. Two phonological awareness tasks were administered to test phonological awareness at the intra-syllabic and phonotactic levels. The tasks were an intra-syllabic segmentation task and a lexical decision task. The results showed significant effects of both linguistic factors on the participants’ L2 phonological awareness. The lexical status of the test item had a significant effect on the participants’ performance in the task. The participants performed significantly better in identifying real-words than non-words, which reflects an advanced phonotactic awareness. Finally, the results revealed that the body-coda unit is the preferred intra-syllabic structure for Saudi learners. Therefore, the study provides evidence that the onset-rime hypothesis is not universal and is at least not applicable to Saudi Arabic speakers. The study offers theoretical and practical implications for the acquisition and teaching of L2.
IMPLEMENTASI KEBIJAKAN PUBLIK KANTOR PERTANAHAN KABUPATEN PATI ATAS PENGECEKAN SERTIFIKAT TANAH BERBASIS ONLINE
Authors: Berliani Lintang , Antoro Aji Fajar Suryo
Published: March 2024

Public services are activities carried out by state officials, including the National Land Agency. BPN has one of the policies in providing online certificate checking services by the PPAT/Applicant. However, in terms of implementation, there were obstacles, both technical and non-technical. The purpose of this study was to find out and analyze the implementation of public policy at the Pati District Land Office for checking online-based land rights certificates. This research is a normative-empirical research, with a descriptive-analytic nature by conducting library research and interviewing employees who work at the Pati District Land Office. The result of this study is that checking online certificates is guaranteed to be valid according to Ministerial Regulation ATR BPN No. 5 of 2017, either through the BPN website or the "Sentuh Tanahku" application, both carried out by the PPAT/Petitioner. This service is carried out to realize good governance and the general principles of good governance. Technical obstacles, namely websites that have errors or down causing the checking process to be hampered, as well as non-technical obstacles from external PPAT/Applicant parties who make mistakes when uploading documents. Pati District Land Office has made efforts to overcome this by conducting outreach and education on online certificate checking to external parties as well as optimizing the performance of Pati District Land Office employees so that this public service policy runs optimally.
 
Keywords: Implementation of Public Policy; Land Office; Certificate Checking.
IMPLEMENTASI PERATURAN DISPENSASI NIKAH BERDASARKAN UNDANG-UNDANG NO 16 TAHUN 2019 TENTANG PERNIKAHAN DI KECAMATAN KEMUNING KOTA PALEMBANG
Authors: Nirvananda Della , Isabella Isabella , Amaliatulwalidain Amaliatulwalidain
Published: March 2024

The research aims to find out how the implementation of marriage regulations, Marriage Law no.  16 of 2019 in Kemuning District, Palembang City.  The research method used is a descriptive method with a qualitative approach.  Data collection techniques used include observation, interview and documentation methods, as well as sampling techniques, namely, with individuals and groups who may have information about the subject being studied.  Qualitative descriptive method was used as a research method.  As data collection methods, observation, survey and documentation methods were used, as well as sampling methods, namely, people who knew the subject of investigation in Kemuning District, Palembang City.  Furthermore, the results of the analysis and field results of this research use Van Metter and Van Horn's theory which includes 6 indicators, namely size and policy, resources, implementation characteristics, implementation attitude, communication between organizations, economic, social and political environment. This indicates that the government itself has not implemented it effectively.  good and optimal Decree Law No. 16 of 2019 concerning Marriage in Kemuning District, Palembang City.  The unfavorable social, economic and political environment causes the implementation of Law No. 16 concerning Marriage to not run smoothly and optimally.  Based on the research conducted, it was found that the implementation of the marriage dispensation by the Office of Religious Affairs (KUA) in Kemuning District, Palembang City has not run well and optimally because the local government has not been optimal and the social, economic and political environment has not run well and optimally.
 
Keywords: Implementation; Marriage; Dispensation
PENERAPAN ASAS-ASAS BUDAYA ORGANISASI UNTUK MENCEGAH TINDAKAN FRAUD PADA KARYAWAN PT. BANK RIAU KEPRI SYARIAH CABANG PEKANBARU
Authors: Erfiyanti Fina , Andri Seno , Zulkarnaini Zulkarnaini
Published: March 2024

Fraud cases in financial institutions in Indonesia have increased. Currently, the banking sector is experiencing intense competition and facing internal problems, including fraud. Banks are institutions that depend on public trust in their operations because banks are considered agents of trust. Therefore, building public trust is very important for banks so that people are interested in using banking services. In the context of PT. Bank Riau Kepri Syariah, they also integrate organizational cultural values as moral guidance in behavior, actions and decision making. These values become a reference for all PT members. Bank Riau Kepri Syariah in assessing whether the actions taken are good or bad, right or wrong. The aim of this research is to analyze how the Principles of Organizational Culture are implemented in preventing fraud among PT employees. Bank Riau Kepri Syariah Pekanbaru Branch uses descriptive qualitative methods with an ethnographic approach which aims to explore behavior that occurs naturally in a culture or a certain social group to understand a particular culture from the perspective of the perpetrator. Data collection techniques in this research are based on the results of interviews, observation and documentation. The results of this research indicate that the application of PT's Cultural Values. Bank Riau Kepri Syariah Pekanbaru Branch has been well organized.
 
Keywords: Organizational Culture; Fraud; Bank.
PERAN BAPPEBTI DALAM PENGAWASAN PERDAGANGAN BERJANGKA DI PROVINSI LAMPUNG
Authors: Fitriana Indah , Moelyono Achmad
Published: March 2024

Futures trading is an alternative financial investment for individuals and businesses. The party responsible for monitoring/supervising futures trading is the Commodity Futures Trading Supervisory Agency (BAPPEBTI). The purpose of the study is to find out how the role of BAPPEBTI when supervising futures trading. This study uses qualitative descriptive research, which is a method used to describe or analyze research results but not to draw conclusions.  The subject of this study is a futures company in Lampung province. The data collection techniques used are narrative interview techniques, documentation, and data analysis. Based on the results of the study, it can be concluded that BAPPEBTI plays a role in preventive supervision carried out by means of technical training, namely in the context of developing and coaching all futures trading. The role of BAPPEBTI is to carry out repressive supervision, especially when canceling decisions of subordinate bodies that are contrary to laws and regulations. The monitoring is carried out through inspection and supervision based on standard operating procedures in order to further improve the compliance of each futures trading company. BAPPEBTI is expected to provide more intense supervision and more active direction to futures companies.
 
Keywords: Role; Supervision; Trade.
STRATEGI PEMERINTAH SURABAYA MEWUJUDKAN KOTA LITERASI
Authors: Solehuddin Solehuddin , Rahmadanik Dida
Published: March 2024

Literacy, when taken literally, refers to a person's capacity to read and write. People who can read and write are often referred to as literate, while those who are illiterate are referred to as illiterate. Descriptive research methods are used by the author in making this scientific article. The results of the research show that Surabaya, as the first literacy city in Indonesia, has implemented various strategies and initiatives to encourage interest in reading and turn reading into a tradition in society. The literacy program in Surabaya provides positive benefits for the community, by increasing interest in reading, participating in conversations, and developing reading habits. a well-organized literacy movement program has been implemented in the city of Surabaya since 2014, according to a compilation of research articles about the government's goal to make Surabaya a city of literacy. The government's approach to a series of literacy initiatives in Surabaya City seems to have succeeded at the habituation and development stage). Internal and external factors can be used to demonstrate this. Internal factors include lack of interest and motivation in reading for Surabaya residents and inadequate library room infrastructure, which includes incomplete books, outdated books, sloppy bookkeeping, and lack of funds that have not been utilized optimally. The external factor itself comes from family support, which fully supports the existence of literacy programs in this city which aims to foster literacy culture and support for the literacy program of Surabaya City in assisting the implementation of literacy programs. Therefore, it can be claimed that the government's strategy to create a literacy city in Surabaya City is weak or has not been fully realized.
Keywords: Strategy; Government; Literacy