bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Vermicompost Application on Yield and Nutrient Concentration of Oily Rose
Authors: Kural Fatih , Coşkan Ali
Published: September 2023

In the study, the impact of employing vermicompost to boost oil rose (Rosa damascena Mill.), a native of Isparta province, to improve yield and nutrient content, was explored. Four different doses (V0: 0 kg ha-1, V1: 1000 kg ha-1, V2: 2000 kg ha-1, and V3: 3000 kg ha-1) of vermicompost were tested in the field conditions at 3 replicates. Vermicompost was applied to the canopy projection area and incorporated into the soil. Flower harvest was started on April 30, 2018, and throughout 20 days, the blooming flowers were collected and weighed daily basis. Following the harvest, leaf samples were collected from the plants, and the concentrations of certain macro and micronutrients were assessed.The study's findings demonstrated that applying vermicompost boosted the yield of oily rose blooms. The greatest yield value was determined to be 5850 kg ha-1 at a vermicompost dose of 2000 kg ha-1, which was 660 kg ha-1 greater than the control application. It was observed that vermicompost treatments had no significant influence on plant nutrient concentrations.  This condition is assumed to be related to the removal of minerals from the plant during harvest. The findings indicate that the usage of vermicompost can contribute in the production of oil roses, and a dose of 2000 kg ha-1 can be suggested. This research establishes the feasibility of employing vermicompost in oil rose cultivation and sets the framework for future research.
MITIGATING FINANCIAL AND DATA PRIVACY RISKS: EVALUATING LEGAL RIGHTS AND RESPONSIBILITIES IN ONLINE SOCIAL GATHERINGS IN INDONESIA
Authors: Wardani Yulia Kusuma , Tobing Torkis Lumban , Ariyanti Putri , Sonata Depri Liber , Rusmawati Dianne Eka
Published: September 2023

The advancement of technology has emerged new behavior, including online social gatherings that serve as an alternative to traditional face-to-face interactions. These gatherings involve agreements and arrangements between organizers and participants conducted via online communication platforms, resulting in virtual agreements. While offering benefits such as convenience and accessibility, online social gatherings also present risks, including data privacy violations and financial threats. This study underscores the importance of understanding and managing these risks and highlights the need for robust legal protections for participants. The paper aims to explore the mechanisms of online social gatherings, assess their potential risks, and analyze the legal protections available to members in Indonesia. Employing empirical juridical research methods with a descriptive approach, the study involves reviewing relevant literature, laws, and regulations, and conducting interviews. The findings indicate that online social gathering agreements can be classified as innominate, standard, and reciprocal agreements. Nonetheless, practical challenges arise, particularly concerning privacy breaches and fraud. Indonesia has established legal provisions and litigation processes to address these risks and protect participants. Balancing the benefits and risks of online social gatherings is crucial to ensuring their continued positive impact on society.
The Constitutional Law Implications and Polemics of Extending the Village Head's Term of Office: A Critical Analysis
Authors: Irawan Anang Dony , Rosida Ida Ayu , Permatadani Ega
Published: September 2023

Village administration is pivotal to national economic development and resilience, a role formally recognized with the enactment of Law Number 6 of 2014 concerning Villages. Prior to this legislation, the recognition of village governance was primarily based on Article 18B paragraph (2) of the 1945 Constitution of the Republic of Indonesia. This article investigates the mechanisms for community participation in the amendment of laws and regulations concerning villages and scrutinizes the controversy over extending the village head’s term of office from the perspective of Indonesian constitutional law. Utilizing a normative juridical approach combined with statute and library research methods, this research involves the systematic collection, review, and analysis of relevant data and sources. This research aims to contribute to the understanding of village governance within Indonesia’s democratic framework, contrasting it with the more authoritarian systems seen in communist regimes, and highlights the implications of the Village Law on village authority and the tenure of village heads.
Formulasi Self-Nanoemulsifying Drug Delivery System (SNEDDS) yang Memanfaatkan Tanaman Obat: Narrative Review
Authors: Asita Nur , Zubair Muhammad Sulaiman , Syukri Yandi
Published: September 2023

Pemanfaatan tanaman obat sebagai terapi pengobatan memiliki hambatan untuk sampai ke target aksi karena rendahnya kelarutan dan bioavaibilitas zat aktif dalam air. Self-Nanoemulsifying Drug Delivery System (SNEDDS) merupakan salah satu metode yang dikembangkan untuk meningkatkan kelarutan dan bioavaibilitas zat aktif termasuk ekstrak dari tanaman. Studi literatur ini bertujuan untuk mengkaji formula SNEDDS yang memanfaatkan tanaman obat dengan mengulas informasi yang dikumpulkan dari original article yang relevan. Penelusuran referensi dilakukan pada website seperti Google Scholar, Pub-Med dan ScienceDirect. Beberapa tanaman obat yang diformulasikan menjadi sediaan SNEDDS yaitu sirsak, grapefruits, beetroot, kunyit, propolis, daun salam, sarang semut, daun papaya, buah parijoto, pegagan, temulawak, kelor, ketepeng dan manggis menghasilkan karakteristik yang baik. Sediaan SNEDDS dari tanaman herbal tersebut memiliki nilai transmitan dari rentang 72,74% hingga 100%, waktu emulsifikasi pada sediaan kurang dari 5 menit, zeta potensial -0,2 mV hingga -56 mV. Nilai polydispersity index kurang dari 0,4 dan ukuran partikel yang kurang dari 100 nm. SNEDDS memiliki kemampuan untuk memperbaiki bioavaibilitas dan kelarutan dari senyawa sehingga menghasilkan aktivitas farmakologis yang lebih baik dibandingkan dengan pemberian ekstrak, fraksi maupun senyawa aktif yang tanpa menggunakan sistem penghantaran. Kemampuan SNEDDS dalam meningkatkan bioavaibilitas serta kelarutan senyawa dalam air yang menyebabkan aktivitas farmakologis menjadi semakin tinggi. Formulasi SNEDDS dapat meningkatkan aktivitas senyawa pada tanaman obat hal ini ditandai dengan peningkatan bioavaibilitas obat sehingga SNEDDS dapat menjadi alternatif untuk meningkatkan efisiensi penyembuhan suatu penyakit
Edukasi Penerapan Higiene dan Sanitasi pada Pelaku Usaha Makanan
Authors: Firdani Fea , Chotimah Diva Khusnul , Putri Dwina Aulia , Kusuma Intan Sahara , Mantovani Muhammad Farhan , Azzahra Putri Aulia
Published: September 2023

Along with the times, the human need for food served outside the home is increasing. So that individuals or companies provide more and more food products or businesses. Food safety is a significant thing to note. The behaviour of food handlers in processing and serving food has an essential role in protecting the food from contamination that can affect the health of the people who consume processed food products. This community service activity aims to provide education regarding hygiene and sanitation to food business actors. The training was conducted in October - November 2022 at 40 food businesses in Mata Air Village, South Padang District, Padang City. The implementation method started with field observations, which aim to determine the condition of the hygiene implementation of business actors, followed by providing education to business actors using poster media that contains the application of hygiene and sanitation in handling food and providing personal protective equipment for business actors that can be used to support the implementation of food handling hygiene in the place of business. The results of community service activities found that 97.5% of business premises did not meet hygiene and sanitation requirements. This inspection was seen from personal hygiene and sanitation in the place of business. Education on the application of personal hygiene and sanitation to business actors was carried out door to door to every restaurant business place by using posters containing information regarding the application of food handling hygiene and pasted on every food business place in the village to increase the knowledge of food handlers. Educational media and personal protective equipment are expected to increase restaurant business workers' knowledge and compliance in implementing personal hygiene in processing and serving food.
MALLOW APPS: Aplikasi Berbasis Android untuk Pencegahan dan Monitoring Gangguan Depresi
Authors: Wikaningtyas Pratiwi , Muhammad Hubbi Nashrullah , Ayuningtyas Dhyan Kusuma , Lucianus Spoudy , Wibowo Maria Ines
Published: September 2023

Depression is often defined as a mental condition characterized by severe despondency and dejection, typically also with feelings of inadequacy and guilt, often accompanied by a lack of energy and disturbance of appetite and sleep. Its mortality rate is 800 thousand deaths worldwide. This project aims to make a gamified Android-based application to prevent and treat depression titled Mallow apps. The stages of this project were planning, designing, prototyping, usability testing and satisfaction, and publishing. Figma was the primary tool used for designing and prototyping. The prototype’s functionality was measured by success rate and ease of use. User satisfaction was measured by using a SERVQUAL-based questionnaire. Mallow has several features: medication and appointment reminders, drug information, depression self-test, education specifying depression, and a mood board, a collage art therapy. The functionality test showed a success rate of 88.9% and an easiness rating of 4.4 on a scale of one to five in the latest Mallow version. The satisfaction evaluation showed an expectation score of 4.63 and a perception score of 4.42 on a scale from 1 to 5. It is possible to use Mallow Apps for widespread.
Pendidikan Kesehatan dengan Permainan Edukasi Monopoli Kesehatan Reproduksi (E-Mon Kespro) pada Remaja di Panti Asuhan Putri Muhammadiyah Tanjung Purwokerto
Authors: Aniarti Reni Purwo , Mu’minah Ikhwah , Kurniati Citra Hadi
Published: September 2023

Adolescence, as individuals in the age group 10-19 years, is marked by physical, emotional, cognitive, and behavioural changes. Behaviours characteristic of adolescence, such as alcoholism, use of narcotics, smoking, and high-risk sexual behaviour, are associated with risk to sexual and reproductive health. Unwanted pregnancies and sexually transmitted diseases can lead to serious common reproductive health concerns for adolescents. Lack of information is a significant factor behind poor adolescent knowledge, attitudes, and risk behaviours. This activity aims to discover adolescents' knowledge of Monopoly game-based learning on reproductive health. Activity in 42 adolescents undergoing health education monopoly game-based learning on reproductive health in July 2022 at Panti Asuhan Putri Muhammadiyah Tanjung Purwokerto. The questionnaire consisted of characteristic data filled by adolescent students such as age, body mass index, early age of menarche, cycle menstruation, and knowledge of adolescents about sexual and reproductive health before intervention measured. The pre-test results found that 42.86% of knowledge on reproductive health was poor. Innovative health education can be used to improve the sexual health education of adolescents. The methods can potentially contribute socially, particularly in improving sexual health behaviour and adolescent knowledge of sexual and reproductive health problems.
Anomaly Detection for Agile Satellite Attitude Control System Using Hybrid Deep-Learning Technique
Authors: Mohamed Moamen Ibrahim , Badran Khaled Mahmoud , Hussien Ahmed Esmat
Published: September 2023

Agile low-Earth-orbit (LEO) observation satellites need a robust attitude control and determination system. It is a critical satellite subsystem, which stabilizes the satellite to different desired orientations during its mission using different actuators. The detection of satellite misorientation is a highly challenging problem because it requires continuous monitoring of data from hundreds of satellite sensors to guarantee healthy operability. In this paper, the authors propose a data-driven deep-learning framework for detecting satellite misorientation by analyzing attitude control subsystem telemetry data. The proposed approach combines a hybrid predictive deep-learning model that consists of long short-term memory and convolutional neural networks in two parallel paths to predict telemetry data and a robust isolation forest classifier for anomaly detection purposes that can classify output residuals as normal or anomalous. The hybrid model was optimized by the particle swarm optimization algorithm to ensure faster fitness function convergence with optimal model hyperparameters. The suggested data-driven model was validated using real telemetry datasets, including real anomalous case studies. The experimental results proved the suggested approach’s superiority for identifying satellite misorientation as well as helping satellite operators monitor the system’s health and deduce the causes of anomalies to aid in decision-making.
A Study on the Properties of Sodium Dodecyl Sulfate Surfactant-Assisted Zinc Oxide Thin Films Doped with Molybdenum
Authors: Nkele Agnes Chinecherem , Okeudo David C. , Obitte B. C. N. , Ezema Fabian I.
Published: September 2023

In this article, we focused on studying the characteristics of sodium dodecyl sulfate-assisted zinc oxide materials synthesised using molybdenum as a dopant at varying concentrations of 0 M, 0.3 M and 0.5 M. The structural, morphological, elemental and optical characterisations of the synthesised films were studied using scanning electron microscopy, X-ray diffractometry, energy dispersive X-ray spectroscopy, and an ultraviolet-visible spectrophotometer. Nanorod morphology yielded a hexagonal wurtzite structure from the morphological and structural results. Plots from energy dispersive X-rays confirmed the presence of basic elemental constituents: zinc, oxygen and molybdenum. The optical results gave high absorbance and reduced reflectance trends for the doped samples towards lower wavelength regions. The undoped, 0.3 M and 0.5 M molybdenum-doped zinc oxide films recorded energy band gap values of 3.70 eV, 3.84 eV and 3.97 eV respectively. The prepared zinc oxide films would be useful in solar cell and optoelectronic devices.
Benchmarking machine-readable vectors of chemical re- actions on computed activation barriers
Authors: van Gerwen Puck , Briling Ksenia R. , Calvino Alonso Yannick , Franke Malte , Corminboeuf Clemence
Published: September 2023

In recent years, there has been a surge of interest in predicting computed activation barriers, to enable the acceleration of the automated exploration of reaction networks. Consequently, various predictive approaches have emerged, ranging from graph-based models to methods based on the three-dimensional structure of reactants and products. In tandem, many representations have been developed to predict experimental targets, which may hold promise for barrier prediction as well. Here, we bring together all of these efforts and benchmark various methods (CGR, SLATMd , B2R2l , MFPs, DRFP and RXNFP) for the prediction of computed activation barriers on three diverse datasets
LipoGold Tags: Hybrid Lipid-AuNP Clusters as Highly Efficient SERS substrates for Biomedical Applications
Authors: Cardellini Jacopo , Dallari Caterina , Riccio Lorenzo , Calamai Martino , Pavone Francesco Saverio , Credi Caterina , Montis Costanza , Berti Debora
Published: September 2023

Although Surface Enhanced Raman Scattering (SERS) is widely applied for ultrasensitive in-vitro and in-vivo diagnostics and imaging, the preparation of SERS tags – i.e. metallic nanoparticles (NPs) or NP clusters functionalized with Raman-active molecules (RRs)- typically involves very complex synthetic approaches, often leading to low colloidal stability and poor reproducibility. To overcome these hurdles and promote the widespread use of SERS, novel approaches for the synthesis of efficient and reproducible SERS probes are still needed. Here, we introduce "LipoGold Tags", an innovative and extremely simple platform where gold nanoparticles (AuNPs) clusters are formed by exploiting the self-assembly of AuNPs on the lipid membrane of synthetic vesicles. We show that citrate-stabilized AuNPs spontaneously associate with the membrane of synthetic vesicles forming controlled clusters. Raman-active molecules embedded in the lipid bilayer experience a high enhancement of the electromagnetic field due to the AuNP plasmon coupling, increasing their Raman signals of several orders of magnitude. We optimize SERS enhancement by systematic exploration of RRs and lipid vesicle concentrations and provide a robust structural characterization through techniques like Cryogenic Electron Microscopy (Cryo-EM) and Dynamic Light Scattering (DLS). We further explore the versatility of this approach by functionalizing LipoGold tags with specific targeting antibodies. Validation through Fluorescence Correlation Spectroscopy (FCS) and a tailored sandwich assay confirm efficacy in cell cultures, demonstrating signal and specificity maintenance. Overall, the presented synthetic approach demonstrated major advantages over more traditional methods and may represent a breakthrough in the production of SERS probes with high efficiency and versatility.
The versatility of Cholesky decomposition in electronic structure theory
Authors: Pedersen Thomas B. , Lehtola Susi , Galván Ignacio Fdez. , Lindh Roland
Published: September 2023

The resolution-of-the-identity (RI) or density fitting (DF) approximation for the electron repulsion integrals (ERIs) has become a standard component of accelerated and reduced-scaling implementations of first-principles Gaussian- type orbital electronic-structure methods. The Cholesky decomposition (CD) of the ERIs has also become increasingly deployed across quantum chemistry packages in the last decade, even though its early applications were mostly limited to high-accuracy methods such as coupled-cluster theory and multi-configurational approaches. Starting with a summary of the basic theory underpinning both the CD and RI/DF approximations, thus underlining the extremely close relation of the CD and RI/DF techniques, we provide a brief and largely chronological review of the evolution of the CD approach from its birth in 1977 to its current state. In addition to being a purely numerical procedure for handling ERIs, thus providing robust and computationally efficient approximations to the exact ERIs that have been found increasingly useful on modern computer platforms, CD also offers highly accurate approaches for generating auxiliary basis sets for the RI/DF approximation on the fly, as the two approaches have a deep mathematical connection. In this review, we aim to provide a concise reference of the main techniques employed in various CD approaches in electronic structure theory, to exemplify the connection between the CD and RI/DF approaches, and to clarify the state of the art to guide new implementations of CD approaches across electronic structure programs.
Gas Separating Metal-Organic Framework Membrane Films on Large Area 3D-Printed Tubular Ceramic Scaffolds
Authors: Rana Surjyakanta , Sajzew Roman , Smirnova Oksana , Slowik Josef B. , Komal Ayisha , Velázquez José J. , Wyrwa Ralf , Galusek Dušan , Voigt Ingolf , Wondraczek Lothar , Knebel Alexander
Published: September 2023

Polycrystalline metal-organic framework (MOF) membrane films prepared on ceramic supports can separate gases with high energy efficiency. They generally exhibit very high permeance and selectivity but suffer from cost issues through the required ceramic supports. Increasing the area and reducing the ceramic component to a minimum could be a strategy to enabling neat membrane of MOFs. In a rapid prototyping approach using 3D-printed porous scaffolds with a double helical channel geometry, we dramatically increase the active membrane area-to-volume ratio. Following stereolithographic printing and de-binding of a ceramic slurry, an adapted sintering protocol was employed to sinter commercially available alumina slurries into porous scaffolds. The 3D-printed scaffolds were optimized at a porosity of 40%, with satisfying mechanical stability. Furthermore, synthetic procedures yielding omnidirectional, homogeneous coatings on the outside and inside of the tubular scaffolds were developed. Membrane films of ZIF-8 and HKUST-1 covering a huge 50 cm² membrane area were produced in this way by applying a counter-diffusion methodology. Gas separation performance was evaluated for H2, CO2, N2 and CH4, in single-gas measurements and on their binary gas mixtures.
Improved Configurational Sampling Protocol for Large Atmospheric Molecular Clusters
Authors: Wu Haide , Engsvang Morten , Knattrup Yosef , Kubečka Jakub , Elm Jonas
Published: September 2023

The nucleation process leading to the formation of new atmospheric particles plays a crucial role in aerosol research. Quantum chemical (QC) calculations can be used to model the early stages of aerosol formation, where atmospheric vapor molecules interact and form stable molecular clusters. However, QC calculations heavily depend on the chosen computational method, and when dealing with large systems, striking a balance between accuracy and computational cost becomes essential. We benchmarked the binding energies and structures and found the B97-3c method to be a good com- promise between accuracy and computational cost for studying large cluster systems. Further, we carefully assessed configurational sampling procedures for targeting large atmospheric molecular clusters containing up to 30 molecules (approx. 2 nm in diameter) and propose a funneling approach with highly improved accuracy. We find that several parallel ABCluster explorations lead to better guesses for the cluster global energy minimum structures than one long exploration. This methodology allows us to bridge computational studies of molecular clusters, which typically reach only around 1 nm with experimental studies, that often measure particles larger than 2 nm. By employing this workflow, we searched for low-energy configurations of large sulfuric acid–ammonia and sulfuric acid–dimethylamine clusters. We find that the binding free energies of clusters containing dimethylamine are unequivocally more stable than the ammonia-containing clusters. Our improved configurational sampling protocol can in the future be applied to study the growth and dynamics of large clusters of arbitrary compositions.
Anion Effect in Electrochemical CO2 Reduction: Enhanced Selectivity Enabled Through Anion Modulation
Authors: Yoo Ji Mun , Lukatskaya Maria
Published: September 2023

Electrochemical CO2 reduction reaction (eCO2RR) offers a pathway to produce valuable chemical fuels from CO2 molecules. However, its efficiency in aqueous electrolytes is hindered by the concurrent H2 evolution reaction (HER), which takes place at similar potentials. While recent studies have highlighted critical role of cation selection to improve efficiency of eCO2RR, targeted studies elucidating anion effect on eCO2RR activity and selectivity are lacking. Herein, we present a systematic investigation of the anion-dependent eCO2RR selectivity and activity on gold catalyst using in situ Differential Electrochemical Mass Spectrometry (DEMS) among wide range of anions. Our results reveal that by replacing bicarbonate with carboxylate anions, HER is largely suppressed. Furthermore, we show that propionate and acetate can promote eCO2RR on par with bicarbonate, unlike other studied anions that display largely increased eCO2RR overpotential. Notably, propionate benefits from both suppressed HER and eCO2RR kinetics comparable to bicarbonate: reaching impressive Faradaic Efficiency close to 100% while displaying high CO production rates that are comparable to bicarbonate. These insights underscore the vital role of anion selection in achieving highly efficient eCO2RR in aqueous electrolytes.
Rapid Automated Iterative Small Molecule Synthesis
Authors: Wang Wesley , Angello Nicholas , Blair Daniel , Medine Kameron , Tyrikos-Ergas Theodore , Laporte Antonio , Burke Martin
Published: September 2023

Automated iterative small molecule synthesis has the potential to advance and democratize the discovery of new medicines, materials, and many other classes of functional chemical matter. But to date this approach has been limited by a requirement of about one day of time per C-C bond forming step. Here, we report a nextgeneration small molecule synthesizer which operates at an order of magnitude faster than prior systems through improvements in both chemistry and engineering. These findings move the field of small molecule synthesis a step closer to democratizing its core discovery engine.
Visible light-driven dearomatization of tryptamine-derived isocyanides through aggregation-based charge transfer
Authors: Wu Minghui , Saya Jordy M. , Han Peiliang , Walia Rajat , Pradhan Bapi , Honing Maarten , Orru Romano V. A. , Ranjan Prabhat
Published: September 2023

Aggregation-based charge transfer has emerged as an attractive concept in organic chemistry. In this work, we have demonstrated the ability of tryptamine-derived isocyanides to form aggregates, which enable a single electron transfer step to generate carbon-based-radical intermediates. The developed protocol is operationally simple, robust and demonstrates a novel approach to generate constrained spirocyclic scaffolds. Mechanistic and computational studies have elucidated key aspects associated with radical generation and photophysical properties of tryptamine-derived isocyanides.
Molecular mechanisms underlying totipotency
Authors: Ishiuchi Takashi , Sakamoto Mizuki
Published: September 2023

Numerous efforts to understand pluripotency in mammals, using pluripotent stem cells in culture, have enabled the generation of artificially induced pluripotent stem cells, which serve as a valuable source for regenerative medicine and the creation of disease models. In contrast to these tremendous successes in the pluripotency field in the past few decades, our understanding of totipotency, which is highlighted by its broader plasticity than pluripotency, is still limited. This is largely attributable to the scarcity of available materials and the lack of in vitro models. However, recent technological advances have unveiled molecular features that characterize totipotent cells. Single-cell or low-input sequencing technologies allow the dissection of pre- and post-fertilization developmental processes at the molecular level with high resolution. In this review, we describe some of the key findings in understanding totipotency and discuss how totipotency is acquired at the beginning of life.
PENEMPATAN LOKASI OPTIMAL STATIC VAR COMPENSATOR (SVC) UNTUK MINIMISASI RUGI DAYA MENGGUNAKAN METODE PARTICLE SWARM OPTIMIZATION (PSO)
Authors: Mulyana Defa
Published: September 2023

Suatu sistem yang baik seharusnya memiliki nilai tegangan yang tidak melebihi batas toleransi dengan kerugian daya yang minimal. Kualitas tegangan sangat dipengaruhi oleh ketersediaan sumber daya reaktif pada sistem. Profil tegangan dan  rugi-rugi daya adalah dua parameter yang sangat perlu dijaga dalam sistem tenaga listrik (STL). Kompensasi daya reaktif adalah cara dalam mengatasi persoalan tegangan dan rugi-rugi daya dengan cara menginjeksi daya reaktif STL menggunakan device kontrol pada saluran tranmisi yang disebut dengan Flexible Alternating Current Tranmission System (FACTS) salah satunya Static VAR Compensator (SVC). SVC terdiri dari komponen Thyristor Controlled Reactor (TCR), Thyristor Switched Capasitor (TSC) dan Filter Capasitor (FC). Filter harmonisa terhubung paralel dengan TCR yang berfungsi untuk mengatasi harmonisa yang dihasilkan oleh TCR. Disamping itu, permasalahan penempatan kompensasi daya reaktif  yang optimal adalah menjadi perhatian pada makalah ini. Metode Particle Swarm Optimization (PSO) digunkan untuk mencari lokasi yang tepat. Analisa aliran daya menggunakan Electric Transient Analysis Progam (ETAP). Dengan menempatkan SVC pada Bus 17 mampu mengurangi rugi-rugi daya aktif dari 0,155 MW menjadi 0,140 MW turun sebesar 0,15 MW setara dengan 10 kW dan untuk rugi-rugi daya reaktif dari 0,107 MVAR menjadi 0,097 MVAR turun sebesar 0,1 MVAR setara dengan 10 kVAR.
ANALISIS DAN SIMULASI DESAIN PENAMBAHAN PENYULANG PADA GARDU INDUK KEBASEN – TEGAL
Authors: Pramanasari Ni Putu , Solichan Achmad , Assaffat Luqman
Published: September 2023

Pusat pembangkit yang terlalu jauh dari beban menyebabkan kerugian pada saat penyaluran energi listrik. Seperti yang terjadi pada penyulang KSN11 dan penyulang KSN12 pada Gardu Induk Kebasen yang mengalami drop tegangan dan rugi daya ketika penyaluran energi menuju konsumen. Nilai tegangan ujung pada penyulang KSN11 adalah sebesar 18,60 kV dengan persentase beban 51% dan nilai tegangan ujung pada penyulang KSN12 adalah sebesar 17,75 kV dengan persentase beban 60%. Metode penelitian ini menggunakan simulasi ETAP 12.6 dengan melakukan pemecahan beban.  Hasil penelitian ini menunjukan bahwa nilai persentase drop tegangan untuk Penyulang KSN11 mengalami penurunan sebesar 1,62 %, untuk penyulang KSN12 mengalami penurunan sebesar 4,12% sedangkan untuk penyulang KSN20 mengalami kenaikan sebesar 3,08%.  Dan untuk nilai rugi rugi daya total juga mengalami penurunan sebesar 564,84 kW untuk penyulang KSN11, penyulang KSN12, dan penyulang KSN20.
SMART METER DAN PENGONTROL PENGGUNAAN ENERGI LISTRIK BERDASARKAN SMART RELAY DENGAN KOMUNIKASI ETHERNET DAN WIRELESS
Authors: PUJIANTO MOCH CAHYO CAHYO , Winarno Istiyo , Winarno Istiyo , Rahmatullah Daeng , Rahmatullah Daeng
Published: September 2023

Akhir-akhir ini pemerintah memberikan petunjuk arah bagi masyarakat untuk bijak menggunakan energi listrik yang disupply oleh Perusahan Listrik Negara (PLN). Hal itu karena pertumbuhan pelanggan listrik lebih cepat dibandingkan dengan pembangunan pembangkit listrik tenaga listrik di indonesia . Namun untuk menerapkan penggunaan energi listrik pada Kilowatt jam ( kWh ) rumah dengan angka yang sulit berhubungan dengan orang awam dan keterbatasa tersebut maka kami akan membuat sebuah prototipe “smart meter dan pengontrolan penggunaan energi listrik berdasakan smart relay dengan komunikasi Ethernet dan wireless”. Dengan menggunakan data arus dan tegangan yang di olah menggunakan fungsi matematika untuk mendapatkan satuan daya listrik. Dibandingkan dengan menggunakan mikro controller sekelas arduino ketahanan dan kontinuitas smart relay yang lebih terjamin, Keunggulan prototipe ini mudah diterapkan karena dalam bentuk angka, menampilkan penggunaan energi listrik dan dapat mengendalikan (on / off) peralatan listrik yang dapat diakses dari layar smart relay dan komputer pribadi dengan komunikasi ethernet dan nirkabel. Pada alat smart meter ini tidak mempertimbangkan phi, perhitungan perhitungan perkalian antara data hasil tegangan dan arus listrik beban .
The Connection Between Work Motivation and Work Stress with Work Engagement for Bakti Timah Medika Employees
Authors: Muchtadin Muchtadin , Emmelya Sundary Zelvy
Published: September 2023

This research aims to determine the strength of the relationship between motivation and work stress with work involvement individually or simultaneously. The quantitative approach used in research. The sampling used is the saturated sample method. A total of 270 people filled out the questionnaire with a response rate of 17.21% of the total population. The data analysis method used quantitative descriptive analysis, simple correlation, and multiple correlation. Normality and linearity tests were used before hypothesis testing. The finding in this study is that work motivation is positively and strongly correlated with work engagement. Job stressor has a negative and weak correlation with work engagement. Motivation and work stress are simultaneously positively connected with work engagement. The company is expected to provide motivation, increase the benefits provided and provide freedom in managing work schedules and ways of working so that employees feel more comfortable with their work. Further researchers can use factors that mediate the link between job stress and job engagement to explain the weak relationship found in this study. The next researcher can compare work motivation, job stress and job involvement
Penelitian ini bertujuan untuk mengetahui kekuatan hubungan motivasi dan juga stres bekerja dengan work engagement secara masing-masing maupun simultan. Pendekatan kuantitatif dipakai dalam penelitian. Pengambilan sampel yang dipakai ialah metode sampel jenuh. Sebanyak 270 orang yang mengisi kuesioner dengan tingkat respon 17,21% dari total populasi. Metode analisis data memakai analisis deskriptif kuantitatif, korelasi sederhana dan korelasi berganda. Uji normalitas dan linearitas dipakai sebelum pengujian hipotesis. Temuan dalam penelitian ini ialah motivasi kerja berkorelasi positif dan kuat dengan work engagement. Stres kerja berkorelasi negatif dan lemah dengan work engagement. Motivasi dan stres kerja secara berbarengan berkorelasi positif dengan work engagement. Pihak perusahaan diharapkan memberikan pelatihan motivasi, meningkatkan tunjangan yang diberikan serta memberikan kebebasan dalam mengatur jadwal kerja dan cara bekerja agar karyawan lebih merasa terikat dengan pekerjaannya. Peneliti selanjutnya dapat menggunakan faktor yang memediasi hubungan antara stres kerja dengan work engagement guna menjelaskan lemahnya hubungan yang ditemukan dalam penelitian ini. Peneliti selanjutnya bisa juga membandingkan tingkat motivasi kerja, stres kerja dan work engagement pada karyawan yang memiliki posisi pekerjaan yang berbeda.
Mindfulness-Based Cognitive Therapy (MBCT) Effectivity to Increase Positive Self Perception on Fatherless Adolescents
Authors: Pasca Rina Amherstia , Pratikno Herlan , Rizal Muchammad , Martin Ricky Alejandro
Published: September 2023

Adolescence is said to be an unusual and challenging transitional period. Various kinds of problems involving youth groups are increasing day by day. Fatherlessness, or the loss of the father's role, is one of the problems. These various problems cause adolescents to tend to have negative self-perceptions. Therefore, positive self-perception among adolescents needs to be improved. This study aims to determine the effectiveness of MBCT to increase positive self-perception in fatherless adolescents. Participants in this study consisted of six adolescents who experienced fatherlessness and would receive the MBCT intervention. The research instrument consisted of the self-perception scale, adapted from Robbins. The data analysis technique in this study used the Mann-Whitney U Test with the help of SPSS. The results of the hypothesis test obtained a score of z = -2.491 with a significance of p = 0.013. This means that there is a significant difference in increasing self-perception among fatherless adolescents. The results of the effect size test are known based on Rank-biserial totaling 0.861. This means that there is a great influence of Mindfulness-Based Cognitive Therapy on increasing positive self-perceptions in fatherless adolescents. Then adolescents, so it is concluded that Mindfulness-Based Cognitive Therapy is effective in increasing fatherless adolescents' self-perceptions.
Penelitian ini bertujuan untuk mengetahui kekuatan hubungan motivasi dan juga stres bekerja dengan work engagement secara masing-masing maupun simultan. Pendekatan kuantitatif dipakai dalam penelitian. Pengambilan sampel yang dipakai ialah metode sampel jenuh. Sebanyak 270 orang yang mengisi kuesioner dengan tingkat respon 17,21% dari total populasi. Metode analisis data memakai analisis deskriptif kuantitatif, korelasi sederhana dan korelasi berganda. Uji normalitas dan linearitas dipakai sebelum pengujian hipotesis. Temuan dalam penelitian ini ialah motivasi kerja berkorelasi positif dan kuat dengan work engagement. Stres kerja berkorelasi negatif dan lemah dengan work engagement. Motivasi dan stres kerja secara berbarengan berkorelasi positif dengan work engagement. Pihak perusahaan diharapkan memberikan pelatihan motivasi, meningkatkan tunjangan yang diberikan serta memberikan kebebasan dalam mengatur jadwal kerja dan cara bekerja agar karyawan lebih merasa terikat dengan pekerjaannya. Peneliti selanjutnya dapat menggunakan faktor yang memediasi hubungan antara stres kerja dengan work engagement guna menjelaskan lemahnya hubungan yang ditemukan dalam penelitian ini. Peneliti selanjutnya bisa juga membandingkan tingkat motivasi kerja, stres kerja dan work engagement pada karyawan yang memiliki posisi pekerjaan yang berbeda.
Improving Emotional Regulation Through Role Awareness Training Among Youth Athletes
Authors: Oktafiani Wafiq Alfina , Jannah Miftakhul
Published: September 2023

Creating outstanding athletes requires preparation from adolescence so that they can make long-term achievements. However, adolescent athletes are faced with two situations, namely puberty and dual roles that make their responsibilities heavier. This leads to disruption of emotional regulation which is important for adolescent athletes to have. One effort to improve emotional regulation in adolescent athletes is through role awareness training. This study aims to determine the effect of role awareness training on emotional regulation in adolescent athletes. This study uses a quantitative experimental method with a pretest-posttest control group design with the research subject, namely adolescent athletes who live in the training center of the National Potential Young Athletes Center (SLOMPN) as many as 24 people with an age range of 13-15 years old. Emotion regulation was measured using the IERQ4S instrument with a reliability value of .824.  The results of this study indicate a difference in the significance value in the experimental group which is 0.01 (0.01 <0.05). While in the control group, it is 0.05 (0.85>0.05). Increased emotion regulation through role awareness training is influenced by intrinsic and extrinsic factors. The results of this study provide advice to future researchers to examine other types of awareness training.
 
Pada proses mencetak atlet yang berprestasi diperlukan persiapan sejak remaja agar mereka dapat mencetak prestasi secara jangka panjang. Namun, atlet remaja dihadapkan pada dua situasi, yaitu pubertas dan peran ganda yang membuat tanggung jawab mereka menjadi lebih berat. Hal ini menimbulkan terganggunya regulasi emosi yang penting untuk dimiliki oleh atlet remaja. Salah satu upaya untuk meningkatkan regulasi emosi pada atlet remaja adalah melalui role awareness training. Penelitian ini bertujuan untuk mengetahui adanya pengaruh role awareness training terhadap regulasi emosi pada atlet remaja. Penelitian ini menggunakan metode kuantitatif eksperimen dengan desain pretest-posttest control group design dengan subjek penelitian yaitu atlet remaja yang menetap di training center Sentra Olahragawan Muda Potensial Nasional (SLOMPN) sebanyak 24 orang dengan rentang usia 13-15 tahun. Regulasi emosi diukur dengan menggunakan instrumen IERQ4S dengan nilai reliabilitas .824.  Hasil penelitian ini menunjukkan adanya perbedaan nilai signifikansi pada kelompok ekperimen yaitu 0.01 (0.01<0.05). Sedangkan pada kelompok kontrol yaitu 0.05 (0.85>0.05). Peningkatan regulasi emosi melalui role awareness training dipengaruhi oleh adanya faktor intrinsik dan ekstrinsik. Hasil penelitian ini memberikan saran kepada peneliti selanjutnya untuk mengkaji terkait jenis awareness training yang lainnya.
ANALISIS PENYADAPAN PADA TELEGRAM DENGAN NETWORK FORENSIC
Authors: Citra Dewi Nadiya , Sutabri Tata , Putrawansyah Ferry
Published: September 2023

Telegram adalah ebuah aplikasi layanan pesan instan multiplatform berbasis cloud yang bersifat gratis dan nirlabadan mampu bersaing dengan aplikasi whatsapp (WA). Telegram mampu meningkatkan berbagai fitur yang belum dikembangkan WA dari berbagai posisi. Diantarnya pengiriman file besar yang mampu dikirim melalui telegram. Fitur ini tentunya dapat mempermudah pertukaran informasi maupun data. Telegram juga memberikan celah keamanan yang melibatkan kedua device yakni smartphone dan computer. Penanganan tindak kejahatan yang melibatkan piranti digital perlu ditekan sehingga dapat membantu proses peradilan akan efek yang ditimbulkanya. INvestigasi forensic digital turut berperan serta terhadap penindakan penyalahgunaan fitur layanan pesan instan telegram diantaranya Langkah investigasi penanganan kasus penyadapan percakapan telegram melalui serangkaian tahapan baku sesuai proses dan prosedur forensika digital. Eksplorasi barang bukti (Digital evidence) percakapan telegram akan menjadi acuan akan tindak kejahatan penyadapan telekomunikasi yang selanjutnya akan dilakukan report investigation forensics yang melibatkan barang bukti smartphone dan computer korban. Mobile Forensic Analysis dan Investigation pada smartphone Android dan aplikasi ganda berbasis web browser. Database QR Code membutuhkan autentikasi terhadap smartphone hanya sekali setiap saat login pertama kali sehingga dibutuhkan kewaspadaan penggunanya seperti penggunaan pattern lock pada smartphone dan login user password pada komputer penggunanya. Proses akuisisi langsung terhadap smartphone korban dan analisis web browser pada komputer.
POTENTIAL CUSTOMER ANALYSIS USING K-MEANS WITH ELBOW METHOD
Authors: Marisa Fitri , Wardhani Arie Restu , Purnomowati Wiwin , Vitianingsih Anik Vega , Maukar Anastasia L , Puspitarini Erri Wahyu
Published: September 2023

This study aims to obtain cluster data of potential customers using the K-Means clustering approach supported by the elbow method to determine the correct number of clusters. The data sample that was processed was 100 customer data from a minimarket containing three criteria (gender, age, and purchase retention). The number of initial clusters is determined as 5 and then processed by calculating K-Means. The calculation of the SSE value in the K-Means process produces the lowest SSE value, and the sharpest elbow angle graph visualization is in cluster 4. So, it can be stated that the best number of clusters in this K-Means calculation is four (4) which are used as material for further analysis. Then the analysis results of four (4) clusters state that potential customers are those with high purchase retention, consisting of female customers who dominate in the three (3) clusters. Most potential female customers are customers with an age range above 35 years. Meanwhile, customers with less potential are spread across each cluster with varied gender and age but are not dominant. Thus, this knowledge can be used as a consideration for the management in determining the right promotion strategy.
Sound Atmospheres of Ben Youssef Madrasa in Marrakech (Morocco)
Authors: ZİANİ Abdelouahab , BELAKEHAL Azeddine
Published: September 2023

This study investigates architectural acoustics in heritage building that is the Ben Youssef Madrasa in Marrakech (Morocco). It aims to characterize the sound atmospheres in this place of learning and community life of el-Tolba (plural of el-Tãleb: student). For this purpose, the study is divided into three parts. The first is the literature review in which we present the definitions of the key concepts, some research on the sound atmospheres in heritage buildings, the different materials and methods used. The objective of this part is to have an overview of the topic of atmospheres. The second consists of architectural conformation reading which is devoted to the identification of the architectural and spatial devices participating in the creation of these sound atmospheres. Special attention was given to the prayer hall as a place of teaching and prayer. The third part focuses on the quantitative characterization of the acoustic environment through computer simulation. The prayer hall and the central courtyard were chosen for the simulation which was done through the Ecotect V5.50. The simulation analysis is limited to three criteria: the uniformity of the sound in the prayer hall, the sound behavior and the degree of the presence of reverberation. The results show that the builders of the madrasa paid attention to the architectural acoustics. Several strategies and devices were adopted to have sound atmospheres appropriate to this building.
Pengaruh Social Presence terhadap Kemampuan Problem Solving dalam Kelompok pada Mahasiswa Universitas X
Authors: Nabilah Reghina Hasna , Putri Angesti Najwa Maritza , Illahi Exa Ilham , Fitri Eva Laelatul , Yudiana Whisnu
Published: September 2023

Penelitian ini bertujuan untuk  mengetahui pengaruh dari social presence yang muncul dari aktivitas mengaktifkan atau menonaktifkan kamera pada video conference terhadap kemampuan problem solving dalam kelompok. Penelitian ini menggunakan metode eksperimen dengan instrumen yang dipakai adalah Social Presence Scale serta puzzle Tower of Hanoi dengan mengukur reaction time, latensi, dan jumlah gerakan dari kelompok responden (N=79). Hasil analisis mengindikasikan bahwa tidak terdapat perbedaan yang signifikan pada social presence, reaction time, latensi, dan jumlah gerakan antara kelompok yang mengaktifkan kamera dan kelompok yang tidak mengaktifkan kamera (p>0.1). Hal ini bisa jadi disebabkan oleh adanya perbedaan dalam kecenderungan aktif berpendapat, adanya dominasi individual, dan perbedaan pengetahuan akan masalah. Implikasi dari penelitian ini akan dibahas lebih lanjut di dalam artikel.
Peran Academic Buoyancy terhadap Engagement dalam Aktivitas Belajar Jarak Jauh di Perguruan Tinggi
Authors: Brigitha Veronica , Rohinsa Meilani
Published: September 2023

Pandemi Covid-19 membuat banyak aktivitas perlu melakukan penyesuaian, tidak terkecuali di bidang pendidikan. Situasi belajar jarak jauh sangat membutuhkan peserta didik yang dapat terlibat secara aktif dalam pembelajaran, kreatif dalam mencari berbagai sumber pembelajaran dan mandiri belajar. Perilaku ini dalam ilmu psikologi dikenal istilah Engagement. Di sisi lain, kegiatan pembelajaran jarak jauh dihayati peserta didik sebagai suatu tantangan tersendiri bahkan tidak jarang dirasa sebagai suatu kendala akademik. Diperlukan kemampuan untuk mengatasinya atau yang dikenal dengan istilah Academic buoyancy. Penelitian ini bertujuan untuk melihat bagaimana peran Academic buoyancy terhadap Engagement. Partisipan dalam penelitian ini sebanyak 252 mahasiswa yang berusia 18-22 tahun. Alat ukur dalam penelitian ini adalah Engagement Questionnaire dan Academic Buoyancy Scale. Hasil penelitian ini menunjukkan bahwa Academic buoyancy memiliki peran yang signifikan terhadap munculnya  Engagement mahasiswa dalam aktivitas belajar terutama di saat menjalankan pembelajaran jarak jauh. Hasil penelitian ini mengimplikasikan pentingnya mahasiswa dilatih untuk memiliki kemampuan mengatasi rintangan akademik agar lebih terlibat dalam aktivitas belajar.