bluuebunny/crossref_metadata_2025 huggingface dataset:
A review on Transforming plastic wastes into fuel
Authors: Manickavelan K. , Ahmed S. , Mithun K. , Sathish P. , Rajasekaran R. , Sellappan N.
Published: February 2022

The application of plastics in various sectors led to its increased production globally and this demand, in turn, caused an overflow of plastic waste in landfills, illegal dumping in the sea, and environmental pollution. To overcome this issue, several alternatives for managing plastic wastes have been developed and among them, reuse, recycling, and energy recovery methods are highly acknowledged methods. Nonetheless, recycling methods come with certain disadvantages like mixing and segregation of wastes, high labour costs associated with segregation and processing, by-product disposal, and its usage. Researchers have shifted their focus to energy recovery systems because of these drawbacks. Extensive research in this area led to the development of converting waste plastics into liquid fuel through the process called pyrolysis. The pyrolysis process can thermally degrade plastics in the absence of oxygenproducing oil and monomers. The temperature has the most impact on the pyrolysis process and depending on the types of plastic wastes, the pyrolysis temperature varies between 300 – 800 oC. The oil yield due to the variation in temperature varies between 45 – 95 wt.% and the calorific value of the oil has been observed to be in the range of 9679 – 11428.5 kCal/kg, which is similar to the other commercial fuels. Also, the review indicates that it is possible to extract up to 84% of fuel from 1-kg plastic at 360 oC. As a result, following refining/blending with conventional fuels, pyrolysis oil can be utilised as an alternate source of energy and transportation fuel. Apart from the temperature, the other influencing factors include, the reactor design and its size, pressure, heating rate, residence time and feedstock composition. The pyrolysis process was examined in terms of plastic types and primary process factors that impacted the end result, such as oil, gaseous, and char. Temperatures, reactor types, residence duration, pressure, catalysts, and other critical factors were examined in this work. Furthermore, the study examines technological problems and current advances.
Optimal Control of the Coronavirus Pandemic with Impacts of Implemented Control Measures
Authors: Yusuf Tunde Tajudeen , Abidemi Afeez , Afolabi Ayodeji Sunday , Dansu Emmanuel Jesuyon
Published: February 2022

This paper considers the current global issue of containing the coronavirus pandemic as an optimal control problem. The goal is to determine the most advantageous levels of effectiveness of the various control and preventive measures that should be attained in order to cost effectively drive the epidemic towards eradication within a relatively short time. Thus, the problem objective functional is constructed such that it minimizes the prevalence as well as the cost of implementing the various control measures subject to a model for the disease transmission dynamics which incorporates the existing controls. The optimality system of the model is derived based on Pontryagin's maximum principle while the resulting system is solved numerically using the Runge-Kutta fourth order scheme with forward-backward sweep approach. Findings from our results show that the new cases and the prevalence of the disease can be remarkably reduced in a cost effective way, if the specified optimal levels of effectiveness of the various preventive and control measures are upheld continuously for at least a month. Moreover, the results also show that the disease can be eventually eradicated if these effectiveness levels are sustained over a reasonable length of time.
Juxtaposing Vertically Transmitted Infections (VTIs) and the Spread of HIV/AIDS in a Typically Infection Prevalent Region in Nigeria
Authors: Iseh Matthew , Usoro Anthony , Ekong Nsisong , Ukpe Idara
Published: February 2022

In this paper, we investigate by putting side by side the rate at which Human Immuno-deficiency Virus/ Acquired Immune Deficiency Syndrome HIV/AIDS spreads through Vertical Transmission (VT) in a typically infection prevalent region. Also, we model this relationship and present the enormity and the likelihood of mother-to-child infections given Age, Weight, and Dosage of Drugs taken by the pregnant women. Binary logistics regression is the approach employed in the analysis of this work. The method is necessary given the dichotomous nature of the variableunder investigation, in this case, the status of the newborns. The result from the Binary logistic regression shows that the probability that a child will be infected given that the mother is positive is 0.098235 approx  0:1, and this is unlikely to happen given the small probability. This result is in line with the proportion of Event count which is aprox 0:1. Other complimentary test results also agree that given the biomarkers (Age, weight and drug doses of the mothers) used in the study, the possibility of a newborn acquiring the deadly disease is very minimal. The study revealed that, given these biomarkers, the chances of newborns being infected with HIV/AIDS through VT is very minimal. Hence, there is need for donors and interventionists agencies to redirect attention and interventions to other modes of transmissions.
Modeling and Forecasting the Third wave of Covid-19 Incidence Rate in Nigeria Using Vector Autoregressive Model Approach
Authors: Odekina Gabriel O. , Adedotun Adedayo F. , Imaga Ogbu F.
Published: February 2022

Modeling the onset of a pandemic is important for forming inferences and putting measures in place. In this study, we used the Vector autoregressive model to model and forecast the number of confirmed covid-19 cases and deaths in Nigeria, taking into account the relationship that exists between both multivariate variables. Before using the Vector Autoregressive model, a co-integration test was performed. An autocorrelation test and a heteroscedasticity test were also performed, and it was discovered that there is no autocorrelation at lags 3 and 4, as well as no heteroscedasticity. According to the findings of the study, the number of covid-19 cases and deaths is on the rise. To forecast the number of cases and deaths, a Vector Autoregressive model with lag 4 was used. The projection likewise shows a steady increase in the number of deaths over time, but a minor drop in the number of confirmed Covid-19 cases.
Women in Urban Local Government in Bangladesh: A Study on Narayanganj City Corporation
Authors: Ferdous Jannatul , Islam Md. Nahidul
Published: February 2022

Women's equal participation in politics is critical to women's advancement. This determination, however, is not to be made uniformly across the globe. Yet, in contemporary periods, it has witnessed a significant shift in women's political participation globally. The purpose of this paper is to gain a better understanding of women's overall participation, their socioeconomic status, and their valuable role in urban policy formulation and implementation in Bangladesh. In this analysis, primary and secondary data are integrated. Primary sources are referenced to substantiate theories and arguments asserted in the secondary literature, which are based on the case study of Narayanganj City Corporation. It is completed with the assistance of theories and contentions gleaned from secondary sources. Additionally, this study concludes with an examination of Bangladeshi women's position in the decision-making process. Another pressing need is to broaden the participation of women in political culture at the grassroots level. In urban areas, the City Corporation must interact with various government, autonomous, and semi-autonomous bodies. The situation of female ward councillors has deteriorated to the point where there is some ambiguity. Women's involvement in politics has been limited by a decline in financial capital and family support. Women can appeal to low-level politics thanks to a patriarchal viewpoint. In Bangladesh, women continue to struggle for equal rights and face political challenges. Societal norms enforce gender stereotypes. Religious restrictions are the most severe concern among Bangladesh's status issues, which have a complicated structure. Women are not politically socialized enough to participate in the political life of their country. The City Corporation's institutional rules and responsibilities are of little concern to women, and the existing regulations are insufficient. Therefore, the paper can reveal the actual scenario of women's representation and obstacles in the urban level of Bangladesh.
The Quality of Service of Vehicle Plate Online Registration in Cambodia: Assessment and Perspective of Online Customers
Authors: Ngich Lor Mouy
Published: February 2022

Limited evidence is presented for the evaluation of a particular online service, especially in developing countries. Cambodia introduced an online vehicle plate registration in 2017. Since then, there have not been any research studies on the quality of this public online service after the implementation. This research has two main aims: (1) to describe the quality of online vehicle plate registration and (2) to present citizens' perspectives who have experienced this online service provided by the Ministry of Public Works and Transport (MoPWT). The research employs a mix-method combining online questionnaires (100) and in-depth interviews (10) to answer the research questions regarding website design, reliability, citizen support, trust, and accessibility. The average score for all components and overall service quality is 2, suggesting that people perceive the service as having low quality. The results strengthen the influence of reliability and citizen support on the people’s perception of service quality as claimed by researchers. However, it contradicts the previous research in that website design though not well appreciated does not have much influence on the quality of service as claimed. The research also indicates some issues with the online system. Building more trust, providing better citizen support in time, and finally reducing the chances of corruption are components of services quality that should be improved to increase the number of people using the online service and increase citizen satisfaction.Online Service; Service Quality; Customers; Cambodia; Perspective; Citizen Support; Reliability
The Transformation of Regional Government Policies in Maintaining Economic and Health Stability in the New Normal Era
Authors: Rimapradesi Yulia , Fajrina Siti
Published: February 2022

It has been more than one year that the Covid-19 pandemic has hit Indonesia. In the face of this pandemic, governments from the national and district levels have responded with policies that limit social activities, resulting in decreased mobility in the community to prevent the transmission of Covid-19. This ultimately has an impact on economic growth. In addition, policies in the health sector are also the main thing, starting from the handling of Covid19 patients at the beginning of the pandemic to the provision of vaccines in the New Normal era. The focus of this writing will look at the transformation of local government policies in the New Normal era of two districts in Indonesia, namely South Bengkulu (Bengkulu) and Pidie (Aceh) to maintain economic stability and health in their regions. By using a policy implementation approach and qualitative descriptive analysis methods, this article aims to understand how local government policies transform in the pandemic era. This study concludes that the policy transformation of the local government of Bengkulu Selatan and Pidie districts in maintaining economic stability and the district generally follows the rules from the central government, but is adjusted to the situation and conditions of the district, such as the Covid-19 transmission rate and the budget owned by each region respectively.
Review Study on Smart Nanomaterials and their Applications
Authors: Ankit Kumar Mishra , Janani KaviPriya V.S , Eldho Jose , Anjali Mohan , Masetty Akshay
Published: March 2022

Smart nano materials are becoming increasingly popular in several fields of research. Some of the reasons for a lot of study in this field include the unique properties of these materials to adapt and respond to their environment, as well as increased qualities when combined with other materials. We have highlighted some of the most interesting
nanomaterials in this review paper, including carbon-based nanomaterials such as nanodiamonds, metal-based nanoparticles such like gold, silver, and aluminium nanoparticles, and electrospun nanofibers. The characteristics and uses of these chosen materials were described along the review. In addition, some of the most notable characteristics or qualities of each material are addressed, as well as their purposes. This collaborative research will aid in a briefing on the key characteristics of certain frequently utilized nanoparticles as well as their application areas.
Uji Waktu Alir Granul Pati Sukun Dengan Metode Granulasi Basah
Authors: N.F Ririn , Dewi R Yuniarti , Balfas Rifqi Ferry
Published: March 2022

Buah sukun dapat dimanfaatkan menjadi dengan daya simpan yang baik yaitu menjadi pati sukun. Dalam formulasi tablet, pati digunakan sebagai bahan pengisi, pengikat, dan penghancur. Granul pati sukun dinyatakan baik jika granul pati sukun diuji waktu alirnya. Penelitian ini bertujuan untuk mengetahui waktu alir granul pati sukun. Granul dinyatakan baik jika dalam 100gram granul waktu alirnya kurang dari 10 detik. Penelitian ini diawali dengan pembuatan pati sukun, tahap kedua dilanjutkan dengan pembuatan granul pati sukun. Tahap berikutnya dilakukan uji waktu alir terhadap pati sukun yaitu dengan mengambil 100gram granul, dimasukan ke dalam corong tertutup, selanjutnya buka penutupnya kemudian alirkan granul, hitung waktunya menggunakan stopwatch. Hasil uji waktu alirnya adalah uji pertama 7.70 detik, uji kedua 7.40 detik, uji ketiga 6.82 detik. hasil tersebut menunjukkan granul pati sukun memiliki waktu alir yang baik karena kurang dari 10 detik. Dari hasil penelitian uji waktu alir granul pati sukun dengan metode granulasi basah dapat disimpulkan bahwa waktu alir granul pati sukun menunjukkan hasil baik
ACADEMIC INTRINSIC MOTIVATION AND LEARNING ENGAGEMENT IN MATURE STUDENTS IN PRIVATE HIGHER EDUCATION INSTITUTIONS IN THE SOUTH OF ENGLAND
Authors: Javed Ruqaiya , Qureshi Fayyaz Hussain , Khawaja Sarwar
Published: March 2022

The non-traditional experience for mature students can sometimes be challenging as they connect to the college/university later in life. A new avenue for career growth achieved through higher education can be advantageous for those at a career transition phase. The present research aimed to study the academic intrinsic motivation and learning engagement of mature students in private higher education institutions. The contemporary literature has found a higher intrinsic motivation for learning in mature students than the regular traditional students. Also, student engagement is correlated to success factors such as increased retention, high impact and lifelong learning, social and personal growth and development and student wellbeing. A survey research design was employed to collect primary data (N=300) from full-time undergraduate mature students studying in the private higher education institutions in the South of England, aged 21 years and above. The data was analysed using SPSS version 26.0 and AMOS version 23.0. The bivariate analysis results showed a positive correlation between intrinsic academic motivation and different learning engagements. The non-traditional students who were intrinsically motivated tend to participate more in academic-related activities in private higher education to experience efficacious learning. Furthermore, the result of exploratory factor analysis yielded a three-factor solution for the 15-item study motivation questionnaire with a reliability of 0.93. The result of confirmatory factor analysis confirmed the hypothesised three-factor model structure of the 15-item university student engagement inventory on mature students with a reliability of 0.85. Hence, both scales confirmed high psychometric properties. The academic needs of mature students must be considered. Colleges/universities should organise non-traditional programmes to enhance their motivation for personal and professional growth through higher studies later in life.
 

 Article visualizations:
HYBIRD CRYPTOSYSTEM ALGORITMA HILL CIPHER DAN ALGORITMA ELGAMAL PADA KEAMANAN CITRA
Authors:   STMIK Kaputama, Ramadani Suci
Published: February 2022

Perkembangan Teknologi pada saat ini memungkinkan setiap orang untuk saling bertukar informasi tanpa ada batasan waktu dan jarak. Kemungkinan yang akan terjadi adanya kebocoran data pada saat proses pertukaran informasi yang dilakukan, oleh karena itu dalam pengiriman data khususnya citra, aspek keamanan, kerahasiaan dan efesiensi penyimpanan data sangat diperlukan. Jika informasi penting tersebut jatuh ke tangan orang yang salah, maka akan menyebabkan hal yang tidak diinginkan, contohnya manipulasi gambar dengan bentuk yang negatif dan dapat merugikan pemilik gambar. Salah satu metode yang digunakan untuk menjaga keamanan data tersebut adalah kriptografi dengan menggunakan salah satu teknik yaitu Elgamal. Kekuatan algoritma ini terletak pada sulitnya menghitung algoritma diskrit pada bilangan bulat prima yang didalamnya dilakukan operasi pekalian. Dalam penelitian ini, penulis menggabungkan antara Hill Cipher untuk melakukan penyandian enkripsi citra dan Algoritma Elgamal untuk mendekripsi kunci dari Hill Cipher. Citra pertama kali dienkripsi menggunakan Hill Cipher, kemudian kunci Hill Cipher tersebut dienkripsi dengan menggunakan Algoritma Elgamal. Implementasi sistem menggunakan bahasa pemograman Visual Basic Net 2010. Hasil implementasi dengan citra awal dienkrip memiliki waktu 4282.85 Milidetik dengan hasil gambar yang beracak-acak sedangkan citra yang sudah dienkrip akan kembali di deskripsikan yang memiliki waktu 20442.84 Milidetik dengan hasil citra kembali ke awal.
RANCANG BANGUN SISTEM INFORMASI AKUNTANSI PADA CV. MANIK GALIH BERBASIS WEBSITE
Authors:   STMIK STIKOM Indonesia, Dewi Ni Putu Dita Ariani Sukma , Asana I Made Dwi Putra , Handika I Putu Susila
Published: February 2022

Manik Galih merupakan sebuah perusahaan dagang yang bergerak di bidang industri mebel serta alat-alat elektrikal. Perusahaan ini didirikan pada tanggal 11 Februari 2014 oleh Komang Sri Ari Lestari. CV. Manik Galih berlokasi di Jl. Muding Indah Gg. Ratnasari No 10, Kelurahan Kerobokan Kaja, Kecamatan Kuta Utara, Kabupaten Badung. Permasalahan yang dihadapi pada CV. Manik Galih yaitu saat melakukan pencatatan transaksi keuangan, transaksi tersebut dibuat dalam sheet yang tidak beraturan, ketidakberaturan yang dimaksud adalah tidak sesuainya penempatan antara transaksi pada jurnal harian dengan akun-akun yang dibuat dalam buku besar yang mempengaruhi keakuratan data transaksi, sehingga pembuatan laporan neraca menjadi tidak seimbang (balance). Metode yang digunakan untuk membuat sistem informasi akuntansi pada CV. Manik Galih adalah metode wawancara, dokumentasi dan studi pustaka. Manfaat dan tujuan dari penelitian ini adalah membantu dalam mengelola data penjualan, pembelian serta menghasilkan laporan keuangan yang akurat dan tidak membutuhkan waktu yang lama. Hasil dari penelitian ini adalah menghasilkan sebuah program sistem informasi akuntansi berbasis website yang diharapkan dapat menjawab permasalahan yang dihadapai oleh CV. Manik Galih. Hasil pengujian dengan blackbox testing sistem informasi akuntansi pada CV. Manik Galih dinyatakan telah sesuai dengan fungsinya.
PENYEMBUNYIAN PESAN CHYPER KEDALAM GAMBAR BERWARNA
Authors:   Universitas Potensi Utama, Tambunan Frinto , Purba Eviyanti Novita
Published: February 2022

Pertukaran informasi menjadi hal yang sangat penting di era kemajuan saat ini. Hal ini didukung dengan teknologi informasi dan komunikasi yang terus berkembang pesat. Akan tetapi kemudahan mendapatkan informasi juga memberikan ancaman. Masalah keamanan dan kerahasiaan data merupakan salah satu aspek penting dari suatu informasi. Dengan berkembangnya teknik pengambilan informasi secara ilegal, banyak orang yang mencoba untuk mengakses informasi yang bukan haknya. Oleh karena itu diperlukan suatu sistem pengamanan data yang bertujuan untuk meningkatkan keamanan dan melindungi data sehingga tidak dimengerti oleh pihak yang tidak berwenang, Dengan menggabungkan metode kriptografi dan metode steganogrfi diharapkan mampu memenuhi kebutuhan akan keamanan dan melindungi data. Setelah dilakukan penelitian ini baik secara matematis dan implementasi kedalam aplikasi didapatkan sebuah hasil yang dapat di pertanggung jawabkan dimana hasil dari data asli yang di ubah ke bentuk lain melalui metode kriptografi kemudian hasilnya disisipkan kedalam sebuah gambar. Dari hasil pengamatan yang dilakukan terhadap hasil dari gambar ternyata kapasitas gambar tidaklah signifikan bertambah. Dengan kata lain penyisipan data kedalam gambar terlihat sempurna.
SIMULASI DESAIN DAN ANALISIS ALAT PENDETEKSI SUHU MENGGUNAKAN PROTEUS
Authors:   Universitas Raharja, Hafidianto Ahmad Charis Elyasa , Nugraha Ardi , Adani Muhammad Naufal
Published: February 2022

Pengukuran suhu ruangan berdasarkan suhu yang ada pada ruang kelas atau ruang lainya di beberapa tempat memiliki kendala dalam beberapa kasus. Alat yang digunakan untuk mengukur suhu seperti termometer mengalami kerusakan seperti termometer tidak berfungsi kembali, terutama pada cairan di dalam termometer tersebut. Dalam menangani masalah tersebut, kami dalam membuat alat ini melakukan beberapa tahap observasi, analisis, perancangan dan desain dengan menggunakan proteus yang disarankan oleh dosen kami. Keberadaan alat kami memiliki tujuan untuk menciptakan pengukuran suhu ruangan yang lebih akurat dan efektif, dalam prosesnya tidak memerlukan waktu lama untuk memuat dan mendeteksi suhu sekitar.
DESAIN PEMBUATAN PENGAMAN PINTU MENGGUNAKAN ARDUINO DAN KEYPAD
Authors:   Universitas Raharja, Firdaus Deden Surya , Al Fansah Yogi
Published: February 2022

Keamanan merupakan sesuatu yang sangat penting bagi setiap orang. Sistem yang dapat menambah keamanan sangat dibutuhkan banyak orang. Berbagai cara seseorang dalam memenuhi kebutuhan keamanan rumah, salah satunya dengan memakai teknologi pada sistem keamanan pada pintu. Penggunaan anak kunci pada sekarang ini sangat mudah dilumpuhkan oleh tindak kejahatan. Penggunaan anak kunci pada sistem juga dinilai kurang efektif karena anak kunci mudah hilang dalam pemakaiannya. Dalam penelitian ini dirancang sebuah sistem pengamanan pintu bertujuan untuk menggantikan pekerjaan secara manual menjadi otomatis. Pengamanan dan cara pengembangan sistem pengontrolan pintu pada rumah ini menggunakan mikrokontroler sebagai pengendali proses. Manfaat yang didapat dari system yang dibuat adalah dapat mempermudah pekerjaan manusia dalam mengontrol keamanan rumah secara otomatis. Sistem yang dibuat ini mempunyai kemampuan dalam mengamankan ruangan pada pintu masuk. Langkah-langkah yang harus dilakukan untuk dapat memasuki rumah adalah dengan menggunakan password melalui papan tombol. Bila password benar maka ruangan akan dapat dimasuki dan sistem pendeteksi dinonaktifkan.
RANCANGAN SISTEM INFORMASI LOGISTIK KEBENCANAAN Studi Kasus Badan Penanggulangan Bencana Daerah Jawa Barat
Authors:   Politeknik Pos Indonesia, Ummal Alfaidzah , Wicaksana Djaka Dito
Published: February 2022

Badan Penanggulangan Bencana Daerah sebagai instansi yang bergerak terhadap penanggulangan bencana alam memiliki departemen yang mengoordinir bantuan logistik para korban bencana alam yaitu Bagian Logistik Kebencanaan yang bertanggung jawab terhadap semua bantuan logistik baik yang ada di gudang maupun yang akan disalurkan kepada korban bencana. Dalam penelitian ini pengamatan proses bisnis dilakukan di Badan Penanggulangan Bencana Daerah Jawa barat mengalami bisnis proses mulai dari pendataan kebutuhan bantuan logistik, koordinir bantuan logistik yang ada di gudang, pendistribusian bantuan logistik sampai ke posko bencana sampai pada tahapan pelaporan. Pada saat melakukan pendataan kebutuhan, pencatatan barang bantuan logistik yang ada digudang dan pelaporan dari pihak instansi masih menggunakan sistem lembar kerja yang memungkinkan terjadi nya kesalahan dalam proses transaksi. Serta sistem pendistribusian bantuan logistik ke posko bencana yang masih kurang efisien karna kurangnya analisis terhadap tingkat kebutuhan para korban bencana. Berdasarkan kebutuhan ini, diperlukan desain aplikasi Sistem Informasi Logistik Kebencanaan di Badan Penanggulangan Bencana Daerah Jawa Barat yang memiliki kemampuan fungsional untuk mengelola data kebutuhan bantuan logistik, mengelola bantuan logistik yang ada di gudang, serta memudahkan dalam analisis pendistribusian bantuan logistik. Dalam tahapan analisis pemodelan menggunakan Business Process Modeling Notation (BPMN), sedangkan tahapan perancangan menggunakan Unified Modeling Language (UML). Desain aplikasi ini akan menjadi pedoman dalam mengimplementasikan perangkat lunak pada penelitian selanjutnya.
PERANCANGAN DESAIN USER INTERFACE DAN USER EXPERIENCE PADA APLIKASI JASA PENGANGKUTAN SAMPAH TRASH CARE
Authors:   Universitas Methodist Indonesia, Saragih Rijois I. E. , Pangaribuan Risda R. , Naomi Tiurma C. , Sitepu Gorbyno , Siregar Desty , Sibarani Yanti L. , Ginting Wiwi , Pinem Enda M.
Published: February 2022

Seiring perkembangan zaman, produksi sampah setiap hari semakin meningkat. Ini disebabkan karena, bertambahnya jumlah produk, jumlah penduduk dan pola konsumsi masyarakat. Selain itu, kurangnya tingkat kesadaran masyarakat untuk membuang sampah pada tempatnya yang dapat mengakibatkan tingginya tingkat pencemaran lingkungan. Contohnya, di Kota Medan yang menghasilkan timbulan sampah setiap harinya sebesar 2.000 ton/hari. Kota Medan merupakan kota yang mendapatkan dampak dari tidak adanya pengelolaan sampah yang baik. Hal yang harus dilakukan untuk mengatasi peningkatan volume sampah tersebut adalah dengan cara mengurangi volume sampah dari sumbernya melalui pengelolaan sampah. Hadirnya android dapat memudahkan kegiatan sehari – hari seperti adanya aplikasi Trash Care yang dapat membantu dalam menanggulangi sampah. Penelitian ini berfokus pada perancangan desain user interface (UI) dan user experience (UX) aplikasi Trash Care yang berdasarkan pada kemudahan, efisiensi, dan kegunaan untuk pengguna. Penelitian ini menggunakan metode UCD dalam menjelaskan alur Aplikasi Trash Care dan metode pengumpulan datanya dengan menggunakan dokumentasi. Hasil dari penelitian ini adalah berupa desain interface aplikasi yang disesuaikan dengan kebutuhan pengguna. Adanya desain user interface aplikasi mobile ini diharapkan dapat meningkatkan minat pengguna dalam membuang sampah dan dapat menambah pengetahuan masyarakat dalam membedakan sampah organik dan anorganik.
PENENTUAN HARGA POKOK PRODUKSI JAMUR DENGAN METODE FULL COSTING PADA CELEBES MUSHROOM FARM
Authors:   STMIK AKBA, Mashud Mashud , Askar Askar , Yuliana Yuliana
Published: February 2022

Companies in determining the selling price must calculate the cost of production accurately. Celebes Mushroom Farm in calculating the cost of production is done by counting manually. This research was conducted to make an application that can provide information about the overall costs incurred by Celebes Mushroom Farm in producing mushrooms. The cost calculation used the Full Costing method with Delphi 7.0 as the programming language and MySQ used in the database. Data collection by interviewing and observing techniques at Celebes Mushroom Farm and by library research. From the results of the design of the application of the cost of production, can record and calculate the cost of raw materials, labor, and fixed and variable factory overhead by computerized. And the implementation of the calculation of the cost of production using the full costing method shows that this application can calculate the cost of production accurately.
PENERAPAN ALGORITMA SAFE-LEVEL-SMOTE UNTUK PENINGKATAN NILAI G-MEAN DALAM KLASIFIKASI DATA TIDAK SEIMBANG
Authors:   Universitas Methodist Indonesia, Peranginangin Resianta , Harianja Eva Julia Gunawati , Jaya Indra Kelana , Rumahorbo Benget
Published: February 2022

Klasifikasi data yang tidak seimbang merupakan masalah yang krusial pada bidang machine learning dan data mining. Ketidakseimbangan data memberikan dampak yang buruk pada hasil klasifikasi dimana kelas minoritas sering disalah klasifikasikan sebagai kelas mayoritas. Dimana kelompok kelas minoritas (minority) adalah kelompok kelas yang memiliki data lebih sedikit, dan kelompok kelas mayoritas (mayority) adalah kelompok kelas yang memiliki jumlah data lebih banyak. Data tidak seimbang adalah suatu kondisi dimana jumlah contoh dari salah satu kelas jauh lebih banyak dari kelas yang lain. Alasan buruknya kinerja metode klasifikasi biasa yang digunakan pada data tidak seimbang adalah bahwa tujuan metode klasifikasi dalam meminimumkan galat secara keseluruhan tidak dapat tercapai karena kelas minoritas hanya sedikit memberikan kontribusi, selain itu keputusan akhir yang dihasilkan tidak tepat karena terjadinya bias. Hal ini disebabkan oleh salah satu kelas mendominasi dalam hal jumlah. Dalam penelitian ini akan berfokus pada peningkatan nilai G-Mean dari dataset yang digunakan, dengan menerapkan algoritma Safe-Level-Smote. Dari hasil ujicoba yang dilakukan terhadap dua dataset yakni Abalon dan Vowel, untuk skema Smote + k-NN nilai G-Mean yang didapat yakni 0,47 untuk dataset Abalon dan 0.94 untuk dataset Vowel. Seletah dilakukan ujicoba terhadap dataset yang sama menggunakan skema Safe-Level-Smote menggunakan algoritma klasifikasi k-NN didapat hasil G-Mean 0,59 untuk dataset Abalon dan 1.00 Untuk dataset Vowel, rerata dari kenaikan nilai G-Mean terhadap algoritma Smote sebesar 12,68%. Hal ini membuktikan bahwasanya algoritma Safe-Level-Smote dapat meningkatkan nilai G-Mean pada klasifikasi data tidak seimbang menggunakan algoritma klasifikasi k-Nearst Neighbors.
PERANCANGAN ALAT PENDETEKSI CO2 MENGGUNAKAN SENSOR MQ-2 BERBASIS INTERNET OF THING
Authors:   Politeknik Aceh Selatan, Amsar Amsar , Khairuman Khairuman , Marlina Marlina
Published: February 2022

Salah satu gas yang sangat berbahaya bagi kesehatan manusia adalah Gas CO2, untuk mengetahui kadar di tempat tertentu mengandung CO2 tanpa menggunakan alat bantu pendeteksi akan sulit dilakukan, karena Gas CO2 tersebut merupakan zat yang tidak dapat dilihat langsung oleh mata manusia, maka dalam penelitian ini dirancang sebuah alat pendeteksi CO2 yang dapat memberikan notifikasi kadar CO2 ke telegram berbasis Internet Of Things (IOT). Dalam peneltian ini alat yang digunakan untuk pengukuran kadar CO2 dengan menggunakan sensor MQ-2 untuk mendeteksi kadar dari karbon dioksida, sehingga kadar CO2 yang terdeteksi oleh sensor selanjutnya dikirim melalui jaringan IOT berbasis notifikasi via telegram, notifikasi pada telegram sebagai media pemberi inforamsi pada alat yang dibangun ini dengan lima kategori yaitu: baik, sedang, tidak sehat, sangat tidak sehat dan berbahaya, adapun hasil dari rentang diperoleh jika sensor MQ-2 mendeteksi karbon dioksida dengan rentang 0-50 ppm, maka kondisi udara baik, apabila sensor mendeteksi karbondioksida dengan rentang 51-100 ppm, maka kondisi udara sedang, apabila sensor mendeteksi karbondioksida dengan rentang 101-199 ppm, maka kondisi udara tidak sehat, apabila sensor mendeteksi karbondioksida dengan rentang 200-299 ppm, maka kondisi udara sangat tidak sehat, dan apabila sensor mendeteksi karbondioksida dengan rentang 300 ppm, maka notifikasi ke telegram berbahaya.
PENGARUH KNOWLEDGE MANAGEMENT SYSTEM UNTUK JENJANG JABATAN AKADEMIK DENGAN MODEL SECI
Authors:   STMIK Widuri, Pusparini Nur Nawaningtyas , Budiyantara Agus , Lusa Sofian
Published: February 2022

Berdasarkan Undang-Undang Republik Indonesia Nomor 37 Tahun 2009 Pasal 8 yang menyebutkan bahwa seorang dosen memiliki beban kerja paling sedikit 12 (duabelas) sks dan paling banyak 16 (enambelas) sks pada setiap semester sesuai dengan kualifikasi akademiknya. Saat ini STMIK Widuri sudah melakukan proses sharing knowledge antar dosen untuk membantu pengurusan jenjang jabatan akademik. Namun dalam pelaksanaannya ditemukan permasalahan. Pertama, dosen tidak aktif melaporkan kegiatan Tri Dharma sehingga jumlah dosen yang memiliki jabatan akademik hanya sebesar 41,60 persen. Hal ini dikarenakan minimnya informasi yang dimiliki dosen terkait tata cara untuk pengurusan jenjang jabatan akademik. Kedua, belum tersedianya media yang memfasilitasi dosen dalam hal berbagi pengetahuan dan pengalaman untuk pengurusan jabatan akademik menjadi terhambat dan lebih lama yang berarti proses untuk kenaikan karirnya membutuhkan kurun waktu yang lebih lama. Untuk itu peneliti mengajukan sebuah prototipe Knowledge Management System (KMS) dengan metode SECI dan pengumpulan data didapat melalui wawancara, obserbasi dan studi pustaka. Pengujian perangkat lunak menggunakan User Acceptance Test (UAT). Sedangkan untuk hasil dari penelitian ini menghasilkan prototipe KMS berbasis web dengan hasil pengujian mendapatkan presentase 76% yang artinya sistem dapat diterima dan sesuai dengan yang diharapkan.
EVALUASI CLUSTER SOCIAL MEDIA DATA IN TOURISM DOMAIN MENGGUNAKAN K-MEANS CLUSTERING
Authors:   Universitas Methodist Indonesia, Nainggolan Rena , Tobing Fenina Adline Twince ,   Universitas Multimedia Nusantara, Simarmata Emma Rosinta ,   Universitas Methodist Indonesia, Peranginangin Resianta ,   Universitas Methodist Indonesia
Published: February 2022

Clustering adalah salah satu teknik Data Mining. Clustering bekerja dengan cara menggabungkan sejumlah data atau objek kedalam satu klaster, dengan tujuan setiap data dalam satu klaster tersebut akan mempunyai data yang semirip mungkin dan berbeda dengan data atai objek yang berada pada kelompok lain. K-Means Clustering memiliki kemampuan untuk melakukan komputasi yang relatif cepat dan efisien dalam mengabungkan data dalam jumlah yang cukup besar. Dalam penelitian ini, peneliti akan menggunakan metode K-mean clustering yang diterapkan pada data mining pada Online Reviews pada data TripAdvisor. Implementasi proses K-Means Clustring menggunakan Weka, Atribut yang digunakan adalah galeri seni, klub dansa, bar jus, restoran, museum, resor, taman atau tempat piknik, pantai, teater, dan lembaga keagamaan. Menghasilkan jumlah cluster 4 (k=4) dengan cluster pertama sebanyak 178 (18%) reviews traveler, cluster kedua 243 (25%) reviews traveler, cluster ketiga 228 (23%) reviews traveler, cluster keempat 331(34%) reviews traveler.
PENERAPAN CUSTOMER RELATIONSHIP MANAGEMENT PADA SISTEM INFORMASI PEMESANAN DAN PENJUALAN PADA TOKO BUKU GAPURA BERBASIS WEB
Authors:   Universitas Methodist Indonesia, Tambunan Cosmas , Manalu Darwis Robinson , Naibaho Jimmy Febrianus
Published: February 2022

The use of technology in the application of Customer Relationship Management (CRM) becomes very important to build relationships between customers as well as providing information provided to customers. The benefits of implementing CRM are to help keep existing customers and to gain new customers. In this study, the authors implement CRM in an information system E-commerce on Bookstore Gapura. Where currently there is no E-commission information system available in Gapura Bookstore. The method used in this design is using Data Flow Diagram (DFD). This application is also created by using PHP programming language using MySQL. This application facilitates Bookstore Gapura in providing information and promotion, so that information is delivered more efficiently and clear to the consumer.
SISTEM PAKAR MENDETEKSI PENYAKIT PADA TANAMAN SAYUR SAWI DENGAN METODE BAYES
Authors:   STMIK Pelita Nusantara, Nainggolan Friska , Hutahaean Harvei Desman , Gea Asaziduhu ,   Universitas Methodist Indonesia
Published: February 2022

Mustard vegetables are classified as leaf vegetables from the Cruciferae family which have high economic value and are very popular among the people. Mustard vegetables are often used by people as processed ingredients in various types of cuisine. In general, Vegetable Vegetables are planted in the lowlands to the highlands, and harvest is done at the age of 30 - 60 days after planting, depending on the variety. Expert systems are systems that try to adopt human knowledge to computers so that computers can solve problems as usual by experts. Bayes method is one of the methods found in expert systems that can calculate or process the probability values of each symptom. The expert system detects mustard plant disease has 5 types of diseases found in mustard vegetable plants, namely seedlings, leaf rot, clubroot, leaf spot, Alternaria rot.
ALGORITMA BLOWFISH UNTUK MENINGKATKAN KEAMANAN DATABASE MYSQL
Authors:   Universitas Methodist Indonesia, Simanullang Harlen Gilbert , Silalahi Arina Prima
Published: February 2022

The limitations of humans to maintain the security and confidentiality of stored data can have a bad impact if it is used by unauthorized parties. One way to secure shipping is to convert data into one that is not understood by encoding and insertion using cryptographic techniques. Cryptography is the study of system security, where the system needs to be secured from interference or threats from irresponsible parties. One of the cryptographic algorithms is the Blowfish Algorithm. The Blowfish algorithm is a modern cryptographic algorithm symmetrical key-shaped block cipher. The Blowfish algorithm is quite simple but strong enough because it has a long keyspace, making it difficult to attack. Encryption is done by using a certain key, so as to produce ciphertext (files that have been encrypted or encoded) that cannot be read or understood. The ciphertext can be restored as if it was decrypted using the same key when encrypting the file. The key length used can affect the security of the algorithm. The decryption flow is almost the same as the Blowfish Algorithm encryption, except in the P-array (P1, P2, ..., P18) done by invading. Information of a system is certainly stored in a database that is always possible to attack but using cryptography then the problem can be overcome. By using the Blowfish algorithm, information security in a MySQL database can be improved.
IMPLEMENTASI SISTEM PENDUKUNG KEPUTUSAN DENGAN METODE AHP DALAM MENENTUKAN TINGKAT KEPUASAN PELANGGAN (STUDI KASUS DINAS KOPERASI, USAHA KECIL DAN MENENGAH KABUPATEN DELI SERDANG)
Authors:   STMIK Pelita Nusantara, Simanjuntak Laphita Sari , Sagala Jijon Raphita
Published: February 2022

In order to increase customer satisfaction at Deli Serdang SME Corner, a study was conducted on the level of customer satisfaction in Deli Serdang SME Corner. To find out the extent to which UKM UKM's capabilities provide satisfaction through product, service, financial, shipping, and company conditions, marketing research information from the results of marketing research is needed to find out the attitudes and behavior of customers towards what is most influential in making decisions at SME Corner customers Office of Cooperatives, Small and Medium Enterprises in Deli Serdang Regency. This research starts from the stage of analyzing existing systems that are obtained from direct interviews with related parties and observations. While the design method uses the Unified Modeling language (UML) to describe system design. In this case, to calculate the level of customer satisfaction, the AHP (Analytical Hierarchy Process) method is used. Using a decision-making system can provide convenience for Deli Serdang's UKM Corner to determine customer satisfaction in improving the quality to determine the level of customer satisfaction that is applied using PHP and MySQL Database programming .. The system was developed using a software engineering approach, including analysis, design and implementation . At the analysis stage, process analysis, input analysis, output analysis, ongoing system weakness analysis and needs analysis are carried out.
SISTEM INFORMASI PERSEDIAAN DONOR DARAH BERBASIS SUPPLY CHAIN MANAGEMENT DI PALANG MERAH INDONESIA (PMI) MEDAN
Authors:   Universitas Methodist Indonesia, Nababan Rut Natalina , Rumapea Humuntal , Sarkis Indra M.
Published: February 2022

Palang Merah Indonesia (PMI) is an independent and neutral organization in Indonesia whose activities are in the social field of humanity. PMI Medan City is overwhelmed by managing data on blood receipts from various places, this causes delays in the information that should be informed to the public, the delay in disseminating information about blood stocks can have an impact on the difficulty of getting information on certain types of blood needs. The blood supply in PMI will later be distributed to the hospital. Many hospitals often have difficulty getting information or lack public knowledge about how to obtain information about the availability of bloodstock at PMI. Therefore we need an information system that can provide information quickly, well, and accurately. To overcome this, a system will be developed that uses the concept of Supply Chain Management to control the blood supply in PMI. This system can control the blood donation process both during donation, the donation process, and finally for whom the blood is donated so that the bloodstock information process can be maintained and will not lack.
DASHBOARD MANAGEMENT PENJUALAN DAN PEMBELIAN PADA TANGKAHAN IKAN
Authors:   Universitas Methodist Indonesia, Silalahi Arina Prima , Simanullang Harlen Gilbert ,   Universitas Methodist Indonesia
Published: February 2022

Technology has an important role in the implementation of human activities at this time, including in business activities. Today's technology is widely used to manage business activities with various forms of display/templates that are easy to use. Dashboards are used to display data concisely. Reports can be viewed quickly through a summary of the data displayed on the dashboard. So much data processing makes business activities that still carry out manual recording and see the report data sequence is felt to be less effective. Utilization of technology is highly needed by owners of small businesses when facing business management constraints such as a long time to manage data, loss of sales data, purchases and reports recapitulation errors. Besides, the need for fast and accurate data and information access is also needed to support and monitor business management. Based on these problems, a solution is needed to manage the overall sales and purchasing data, and display reports quickly and accurately by carrying out a study entitled "Dashboard Management of Sales and Purchases of Fish in Fish Spots".
PENERAPAN DATA MINING UNTUK PEMESANAN PEMESANAN PERCETAKAN BAHAN AJAR DENGAN ALGORITMA APRIORI (STUDI KASUS PERCETAKAN WENDY)
Authors:   STMIK Pelita Nusantara, Hutabarat Nurmawaty , Sagala Jijon Raphita
Published: February 2022

Wendy's printing is one of the printing presses in collaboration with the University of Santo Thomas, especially in the field of computer science, the printing of Wendy is located on the faithful road of the UNIKA campus intersection. Print leaders and employees sometimes have difficulty finding out how much teaching material has been printed in one transaction so that the leader of Wendy's printing press is still manual/speculating in teaching material. The application of data mining for ordering the teaching of teaching materials at the computer science faculty of the University of Saint Thomas is designed to produce this rule can produce rules/rules of association that can be seen and analyzed the results, so that the printing leader can see a frequency of teaching materials that often occur in each transaction. Therefore, analysis and testing are carried out, it is hoped that it can provide information about the transaction patterns of teaching materials that often appear. So that it can help the owner in making decisions to order and print teaching materials.
PERANCANGAN APLIKASI BROWSER PENCARIAN KEYWORD DENGAN MEMANFAATKAN FITUR SEARCH DI BERBAGAI WEBSITE MENGGUNAKAN METODE QUERY HASH JOIN PADA PERANGKAT ANDROID
Authors:   Universitas Methodist Indonesia, Sinuhaji Ari Kartanto , Rumapea Yolanda Y. P. , Manalu Darwis Robinson
Published: February 2022

The internet is a medium of information that is very fast and efficient in disseminating information that can not be separated by distance and time. To search for data through the website, sometimes the user forgets the address of the website to search for data so that the data sought is difficult to obtain and if finally obtained, it takes a long time to find the data. Therefore a system is built that will facilitate the user in searching data without having to fill in the URL address of the search website, users can choose which websites will be used as a source of data search. Applications that are built using the hash join method where this method alone can be used to join tables containing website data in a database so that the user can display the desired data based on the input entered into the application. The results of the searches obtained are contents that contain texts in the form of titles or contents of web pages that match the keywords that users enter when searching from selected websites. This content can be in the form of web pages, which can then be accessed directly within the application.
THE PSYCHOSOMATIC RELATIONSHIP BETWEEN COMBAT STRESS AND INJURIES (MONITORING RESULTS REPORT)
Authors: Hovhannisyan H. R. , Tarjumanyan S. V. , Barseghyan A. A.
Published: March 2022

The study was conducted in real conditions while assisting military medical staff. Our psychological team working on a voluntary basis participated in the rehabilitation and psychological assessment of thousands of soldiers during the 44-day war and in the post-war period. In this work, we have made an attempt to address the assessment of soldiers’ psychological conditions due to combat stress and post-stress conditions, depending on the nature of the trauma (injury or mental disorder). Accounting all these conditions allows us to more effectively and accurately assess soldiers’ mental and physical health, to clarify the vectors of psycho-rehabilitation work, to predict further psychological shifts. The study revealed significant patterns of inverse correlation between physical injury and mental disorders, as well as some connections between the personal component and mental disorder.
Verbal fluency and whole-brain functional connectivity of the left inferior frontal gyrus in schizophrenia patients with different long-term outcomes
Authors:   Mental Health Research Center, Panikratova Yana R. , Abdullina Ekaterina G. ,   Mental Health Research Center, Tikhonov Denis V. , Golubev Sergey A. , Kaleda Vasily G. , Lebedeva Irina S.
Published: March 2022

The analysis of heterogeneity in cognition and brain functioning in patients with schizophrenia seems promising for a deeper understanding of the disorder as well as treatment individualization. As language production and its executive control are disturbed in schizophrenia but may be heterogeneous in severity across patients and related to outcome, we aimed to compare the neuropsychological and neuroimaging measures related to these processes in patients with long-term schizophrenia spectrum disorders (mean illness duration of 20.3 ± 6.0 years) characterized by diverse clinical and functional statuses. Forty-four male patients and 18 age-comparable healthy males participated in the study. The participants performed four verbal fluency tasks (VF) and underwent resting-state fMRI. K-means clustering based on PANSS subscales and the PSP total score allocated patients to subgroups with better (S1; n = 15) and worse (S2; n = 29) outcomes. Between-group differences in VF performance and the whole-brain functional connectivity (FC) of the two seeds (the inferior frontal gyrus and the supplementary motor cortex) in the left hemisphere were analyzed. S1 demonstrated better performance in the letter and non-structured VF conditions compared to S2, and S1 did not differ from the healthy controls. Furthermore, S1 had higher FC between the left inferior frontal gyrus and a region in the left postcentral/precentral gyri and superior parietal lobule compared to S2 and the healthy controls. The latter finding merits attention in the context of resilience mechanisms in schizophrenia patients with more benign outcome