bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ecological and human health risk of heavy metals in Nubui River: a case of rural remote communities
Authors: Norvivor Forgive Awo , Azizi Shohreh , Fuku Xolile , Atibu Emmanuel K. , Idris Azeez Olayiwola , Sibali Linda , Maaza Malik , Kamika Ilunga 
Published: June 2024

IntroductionThe Nubui River is a primary source of water for drinking purposes and other domestic activities in the rural communities dotted along its riparian zone, with agriculture being the major activity occurring in this important ecotone. The river has become a potential sink for agrochemical residue, including heavy metals, and has apparent aesthetic water quality issues, with associated health consequences. This study, therefore, assessed the health risks of heavy metals within the rural populations in the catchment areas, who have limited sources of improved water supply.MethodsThe concentration of iron (Fe), lead (Pb), cadmium (Cd), mercury (Hg), and zinc (Zn) was assessed on cumulatively 275 water samples, using a Perkin Elmer PINAAcle 900 T atomic absorption spectrophotometer for 11 months. A cross-sectional survey was conducted amongst 338 community members, following field observations on utilisation types, aesthetic appeal, and perceived quality of water from the Nubui River. To determine the potential human and ecological risks of heavy metals, the hazard quotient, chronic daily intake, contamination factor, and health pollution indices of heavy metals were computed. STATA version 16 was used to analyse the survey results.ResultsDescriptive statistics of average concentrations of heavy metals in surface water at all sampling stations showed the pattern Hg &lt; Pb &lt; Cd &lt; Zn &lt; Fe, with relatively low concentrations, between 0.001 and 0.004 mg/L for Hg, 0.0011 and 0.0019 mg/L for Pb, 0.0461 and 0.0739 mg/L for Zn, and 0.2409 and 0.377 mg/L for Fe. The findings, however, showed relatively high cadmium levels between 0.0215 mg/L and 0.0383 mg/L in two of five sampling stations in comparison with the World Health Organisation (WHO) drinking water guideline values in some months. Hazard quotient values indicate that the population is safe from the non-carcinogenic health risks of exposure to heavy metals through oral routes. The contamination factor and heavy metal pollution indices for cadmium exceed recommended guideline values of 1 and 100, respectively. Meanwhile, 73.1% of community members evidently preferred the Nubui River for various domestic activities with 86.1% of them utilising it for drinking purposes. This occurrence results in exposure to associated health risks.
Grass-livestock interaction: a critical review of current research progress
Authors: Zhu Xiaoyu , Tan Dongfei , Li Yutong , Shao Changliang , Yan Ruirui , Zhou Wenneng , Xin Xiaoping 
Published: June 2024

IntroductionGrass-livestock interaction is of great value in maintaining ecological balance, regional economic development, and the sustainability of grassland husbandry, which has gained attention in recent years in both academia and practice, however, study on grass-livestock interaction possesses cognitive bias and gaps.MethodsThis study clarified the latest research progress and development trend in the grass-livestock interaction field by illuminating publication trend, cooperative network, keyword co-occurrence relationship, keyword clustering during 2000 to 2022 based on the Web of Science core database.ResultsThe results indicated that the annual number of publications in the grass-livestock interaction field showed a globally increasing with interdisciplinary and international collaboration, and the United States of America ranked firstly, followed by Brazil, England, Australia, China. Agricultural Research Service, the U.S. Department of Agricultures was the organization with the highest number of publications, and Rangeland Ecology &amp; Management, Agriculture, Ecosystems &amp; Environment, Grass and Forage Science were the top three journals. Furthermore, in terms of the temporal evolution, the research targeting the grass-livestock interaction mainly went through three stages: initial exploration period (2000–2011), to the period of rapid development (2012–2016) to transitional development period (2017–2022), and the notable existing keywords was Management, Livestock, Cattle, Vegetation, Growth, Soil. In terms of the structural composition, four broad divisions including mechanism of human activities, grassland resource monitoring and management, grassland livestock competition/adaptability, grassland land/soil research were identified. The results provide positive and objective insights into that grassland sustainability and grazing control through strengthening cross-disciplinary and cross-regional cooperation, and applying of standard methods based on evaluation system in the grass-livestock interaction field.DiscussionThe overall contribution of the work is provision of novel insight into the intellectual structure and temporal progression of grass-livestock interaction research at a macroscopic scale and the directions in which the field is headed currently.
Bulk photovoltaic effect in ferroelectrics
Authors: Matsuo Hiroki , Noguchi Yuji 
Published: June 2024

Abstract
The bulk photovoltaic (PV) effect in ferroelectric materials has attracted worldwide attention for novel optoelectronic applications utilizing above-bandgap photovoltages, light-polarization-dependent photocurrents, photocurrent generation by terahertz light, etc. One of the drawbacks is its weak photoresponse under visible-light irradiation, and thereby the development of visible-light-active ferroelectrics has been an important issue. In this review, firstly, we introduce the history, mechanisms, and physical features of the bulk PV effect. Secondly, we summarize the properties of representative ferroelectric oxides and two-dimensional nanomaterials. Moreover, we describe a material design for enhancing the visible-light photoresponse based on bandgap tuning and gap-state engineering. Finally, we discuss future prospects of ferroelectric PV devices with a high conversion efficiency.
Fabrication and characterization of monocrystalline-based composite Pb(Zr, Ti)O3 thin film patterned with a polycrystalline crack stopper structure
Authors: Yoshida Shinya , Katsumata Yu , Tanaka Shuji 
Published: June 2024

Abstract
This paper presents a novel form of Pb(Zr,Ti)O3 (PZT) thin film with a structure in which monocrystalline (Mono) PZT is sectioned with narrow mesh-like polycrystalline (Poly) PZT. The motivation is to overcome the inherent brittleness of piezoelectric Mono thin films. The design assumes that the Poly pattern will stop crack propagation within the Mono area. As a proof of concept, a Mono-Poly PZT composite thin film with a 20 μm-pitch and 2 μm-wide Poly pattern was sputter-deposited on a patterned underlayer on a Si substrate. Its piezoelectric properties were close to those of pure Mono PZT thin films, while its dielectric constant was significantly lower than those of pure Poly PZT thin films. Indentation tests confirmed the Poly patterns effectively stops crack propagation, which is likely to improve the mechanical durability of the overall film.
Analisis Perencanaan Strategis Sistem dan Teknologi Informasi PT. SAC Nusantara Menggunakan Metode Ward and Peppard
Authors: Maulina Anggi , Yusnitasari Tristyanti 
Published: June 2024

<p><em>The lack of utilization of Information systems/Information technology (IS/IT) at PT SAC Nusantara is causing several problems, including the need to transfer data through storage media, excess material in the logistics section, inefficiency in monitoring project progress, reliance on manual Microsoft Office reports, and frequent data input errors leading to inaccurate data. In order to improve business processes and increase competitiveness, it is crucial to develop IS/IT strategic planning to identify the key factors for IS/IT development. This research utilized the Ward and Peppard method along with Value Chain tools to map out the activities involved in business processes. Additionally, Porter's Five Force and PEST were used to analyze the political, economic, social, and technological environments. SWOT analysis was employed to identify opportunities and mitigate threats, while the McFarlan Portfolio was used to classify IS applications based on their contribution to the organization. The research resulted in a strategic planning design for IS/IT, including IS business strategy, IT strategy, IS/IT management strategy, future application portfolio, and a three-year implementation plan.</em></p><p><strong><em>Keywords</em></strong><em>: Strategic Planning of System and Technology Information; Ward and Peppard; Value Chain; Porter’s Five Force; SWOT</em></p><p align="center"><strong>Abstrak</strong></p><p>Kurangnya pemanfaatan SI/TI (Sistem Informasi/Teknologi Informasi) di PT SAC Nusantara menyebabkan permasalahan yaitu transfer data masih melalui media penyimpanan, bagian logistik sering mengalami kelebihan material, kurangnya efisiensi monitoring progres proyek, penyajian laporan masih menggunakan <em>Microsoft Office</em> dan sering terjadi kesalahan input data sehingga data kurang akurat yang dapat menghambat manajemen dalam pengambilan keputusan. Untuk memperbaiki proses bisnis dan meningkatkan daya saing, perlu adanya perencanaan strategis SI/TI agar perusahaan mengetahui faktor penting dalam mengembangkan SI/TI. Penelitian ini menggunakan metode <em>Ward and Peppard</em> dan menggunakan <em>tools Value Chain</em> untuk memetakan aktivitas yang terlibat dalam proses bisnis, <em>Porter's Five Force</em> dan PEST untuk mengetahui lingkungan politik, ekonomi, sosial, teknologi yang berpengaruh, SWOT untuk melihat peluang dan secepat mungkin meminimalisir ancaman, Portofolio <em>McFarlan</em> untuk memetakan aplikasi SI berdasarkan kontribusinya terhadap organisasi. Penelitian ini menghasilkan rancangan perencanaan strategis SI/TI berupa strategi bisnis SI, strategi TI, strategi manajemen SI/TI, <em>future application</em> portofolio dan rencana implementasi dalam tiga tahun mendatang.</p><p> </p>
Analisis Kepuasan Pengguna SIMAK Menggunakan Metode Service Quality (Studi Kasus: STIMIK Sepuluh Nopember Papua)
Authors: Khoe Jorghen Okfrylan , Tatuhey Emy L. , Pawan Elvis 
Published: June 2024

<p><em>The Academic System (SIMAK) is a system used by universities, especially STIMIK Sepuluh Nopember Jayapura. SIMAK is used to record all academic activities, thereby assisting the campus in conducting management, be it student data collection, lecturer data collection, course data collection, schedule data collection, student KRS data collection, and other data related to the academic process. Since it was implemented in 2010, SIMAK has never evaluated the level of user satisfaction, so the campus does not yet know the level of user satisfaction with SIMAK. Therefore, the purpose of this study is to analyze the level of user satisfaction with the services provided by SIMAK. The method in this study is Service Quality (SERVQUAL) by using five dimensions and 21 variables. The results of this study indicate that all dimensions are negative, which means that the value of expectations is higher than the value of perception. In addition, of the 21 variables used, 4 variables have positive values, including clear website information (T2), easy-to-understand language (T4), speed/response in information (RES1), and response speed in meeting new facilities and technologies (RES2).</em></p><p><strong><em>Keywords</em></strong><em>: Service Quality; Satisfaction Level; Academic System</em></p><p><em> </em></p><p align="center"><strong>Abstrak</strong></p><p>Sistem Akademik (SIMAK) merupakan sebuah sistem yang digunakan oleh perguruan tinggi khususnya STIMIK Sepuluh Nopember Jayapura. SIMAK digunakan dalam mendata seluruh kegiatan akademik, sehingga membantu pihak kampus dalam melakukan manajemen, baik itu pendataan mahasiswa, pendataan dosen, pendataan matakuliah, pendataan jadwal, pendataan KRS mahasiswa dan pendataan lainnya yang berhubungan dengan proses akademik. Sejak diimplementasikan pada tahun 2010, SIMAK belum pernah dilakukan evaluasi terhadap tingkat kepuasan pengguna, sehingga pihak kampus belum mengetahui tingkat kepuasan pengguna terhadap SIMAK. Oleh sebab itu, tujuan dari penelitian ini adalah untuk melakukan analisa terhadap tingkat kepuasan pengguna terhadap layanan yang diberikan oleh SIMAK. Metode dalam penelitian ini adalah <em>Service Quality</em> (SERVQUAL) dengan menggunakan lima dimensi dan 21 variabel. Hasil dari penelitian ini menunjukkan bahwa, seluruh dimensi bernilai negative, yang artinya bahwa nilai dari harapan lebih tinggi dari nilai persepsi. Selain itu dari 21 variabel yang digunakan 4 variabel bernilai positif diantaranya adalah Informasi website jelas (T2), Bahasa yang mudah dipahami (T4), Kecepatan/respon dalam informasi (RES1), dan Kecepatan respon dalam memenuhi fasilitas dan teknologi baru (RES2).</p><p><strong><em>Kata kunci</em></strong><strong><em>:</em></strong><em> Service Quality; Tingkat Kepuasan; Sistem Akademik </em></p>
Sistem Pakar Pemilihan Jenis Cat Jotun untuk Tembok Luar Rumah Menggunakan Metode Certainty Factor
Authors: Patrick Ohoiwutun Abraham Victor , H. Kiswanto Rahmat , Sutejo Heru 
Published: June 2024

<p><em>The use of accurate information technology in the form of an expert system to improve service is urgently needed in the paint industry. As we all know, paint serves to provide protection and beautify. Paint has various types, so choosing the right type of paint will give maximum results. The purpose of this research is to implement an expert system for selecting the Jotun Paint Type for the outer walls of the house. The expert system method for solving wall paint selection problems is the Certainty Factor method, which uses 11 house conditions that provide 6 Jotun paint-type solutions for the outer walls of the house. The results of this study are an expert system for selecting Jotun paint types with an accuracy rate of 100%. These results were obtained through testing using ten rules, and all the rules gave the appropriate results.</em></p><p><strong><em>Keywords</em></strong><em>: Selection of Cats; Certainty Factor; Expert system</em></p><p align="center"><em> </em></p><p align="center"><strong>Abstrak</strong></p><p>Penggunaan teknologi informasi yang akurat dalam bentuk sistem pakar untuk peningkatan pelayanan sangat dibutuhkan dalam industri cat. Seperti yang kita tahu bersama, cat berfungsi untuk memberikan perlindungan, dan memperindah. Cat memiliki berbagai macam jenis, sehingga pemilihan jenis cat yang tepat akan memberikan hasil yang lebih maksimal. Tujuan dari penelitian ini adalah untuk mengimplementasikan sistem pakar untuk pemilihan Jenis Cat Jotun untuk tembok luar rumah. Metode sistem pakar untuk menyelesaikan permasalahan pemilihan cat tembok adalah metode <em>Certainty Factor</em>, yang menggunakan 11 Kondisi rumah yang memberikan 6 solusi jenis cat Jotun untuk tembok luar rumah. Hasil dari penelitian ini adalah sebuah sistem pakar pemilihan jenis cat Jotun dengan tingkat keakuratan sebesar 100%. Hasil tersebut diperoleh melalui pengujian dengan menggunakan sepuluh aturan, dan keseluruhan aturan memberikan hasil yang sesuai.</p><p><strong>Kata kunci</strong><strong>:</strong><em> Pemilihan Cat; Certainty Factor; Sistem Pakar </em></p>
Mobile Application Design for Smart Tourism with Augmented Reality Using User-Centered Design Method
Authors: Kirana Elika Thea 
Published: June 2024

<p align="center"><strong><em>Abstract</em></strong></p><p><em>Indonesia has many beautiful and attractive tourist destinations. However, limited information about these locations has made tourists less interested in exploring the cities. Traditional methods of providing information about tourist sites, such as print media, have proven to be less effective in providing information. To address this issue, it is necessary to utilize information technology. One way to do this is by designing a tourism app with Augmented Reality (AR) using the User-Centered Design (UCD) method. UCD is a method that involves the user in every step of the process. Users will be involved in every process, from the design of the application to the final product. Users will be given a questionnaire related to the design until it gets the required interface design. In this study, an average score of 4.16 was obtained, which show the application design can provide complete travel information of user needs.</em><em></em></p><p><strong><em>Keywords</em></strong><strong><em>:</em></strong><em> Tourism; Indonesia; User-Centered Design; Interface Design; Augmented Reality Application </em></p><p align="center"><em> </em></p><p align="center"><strong>Abstrak</strong></p><p>Indonesia mempunyai wisata yang indah dan menarik, namun karena terbatasnya informasi, wisatawan menjadi kurang tertarik untuk mengetahui apa saja yang ada di kota tersebut. Penyampaian informasi mengenai lokasi wisata dengan menggunakan media cetak, brosur dan spanduk di tempat wisata kurang efektif dalam memberikan informasi. Karena kemajuan teknologi sudah sangat pesat, maka diperlukan suatu cara untuk memanfaatkan teknologi informasi. Melalui perancangan aplikasi pariwisata dengan <em>Augmented Reality</em> (AR) menggunakan metode <em>User-Centered Design</em> (UCD). UCD adalah metode yang melibatkan pengguna dalam setiap langkah proses. Dari perancangan aplikasi yang dibuat, pengguna akan terus terlibat dalam setiap prosesnya. Pengguna akan diberikan kuisioner terkait perancangan, jika perancangan belum sempurna, proses UCD akan diulangi hingga mendapatkan desain antarmuka yang dibutuhkan sehingga dapat memenuhi kebutuhan informasi lokasi pengguna. Dari penelitian ini, didapatkanlah rata-rata skor 4.16 yang menunjukan rancangan aplikasi ini dapat dengan mudah digunakan oleh pengguna.</p><p><strong><em>Kata Kunci</em></strong><em>: </em><em>Pariwisata; Indonesia; User Centered Design; Augmented Reality Application</em><em></em></p>
Perbandingan Metode Exponential Smoothing dan ARIMA untuk Prediksi Jumlah Mahasiswa Baru (Studi Kasus di FTI UKSW)
Authors: Paga Efraim , Nugroho Adi 
Published: June 2024

<p><em>Many methods can be used to predict the number of new students admitted to the Computer Science program at the Faculty of Information Technology, Universitas Kristen Satya Wacana. However, it is essential to determine the most accurate method for prediction. This research aims to compare the Single Exponential Smoothing (SES) method and ARIMA to forecast the number of new students in the Computer Science program at Universitas Kristen Satya Wacana for the next three years. The accuracy of the forecast results is tested by comparing the values of MSE, MAE, and MAP. The data used for forecasting are the registration data of new students in the Computer Science program from 2003 to 2022. The research results indicate that the ARIMA method is a more suitable choice for predicting the number of new students in the next three years due to its lower values of MSE, MAE, and MAPE. Using the ARIMA method, the predicted number of new students is 341 in 2023, 334 in 2024, and 330 in 2025.</em></p><p><strong><em>Keywords</em></strong><em>: </em><em>P</em><em>rediction; Single Exponential Smoothing; ARIMA</em></p><p align="center"><strong> </strong></p><p align="center"><strong>Abstrak</strong></p><p>Banyak metode yang bisa digunakan untuk melakukan prediksi jumlah mahasiswa baru yang diterima pada program studi Teknik Informatika Fakultas Teknologi Informasi Universitas Kristen Satya Wacana, namun perlu menentukan metode mana yang paling akurat dalam melakukan prediksi. Penelitian ini bertujuan membandingkan Metode <em>Single Exponential Smoothing</em> dan ARIMA untuk memprediksi jumlah mahasiswa baru pada program studi Teknik Informatika Universitas Kristen Satya Wacana tiga tahun mendatang. Pengujian akurasi hasil peramalan dilakukan dengan membandingkan nilai MSE, MAE, dan MAP. Data yang digunakan untuk peramalan adalah data pendaftaran mahasiswa baru program studi Teknik Informatika tahun 2003 sampai tahun 2022. Hasil penelitian menunjukkan bahwa metode ARIMA merupakan pilihan yang lebih sesuai untuk meramalkan jumlah mahasiswa baru dalam tiga tahun ke depan karena nilai MSE, MAE, dan MAPE yang lebih rendah. Dengan menggunakan metode ARIMA, jumlah mahasiswa baru yang diprediksi adalah 341 orang pada tahun 2023, 334 orang pada tahun 2024, dan 330 orang pada tahun 2025.</p><p><strong>Kata kunci: </strong>Prediksi; <em>Single Exponential Smoothing; </em>ARIMA</p>
Perbandingan Model Arsitektur CNN Dengan Metode Transfer Learning Untuk Klasifikasi Spesies Ikan Laut
Authors: Anugrah Ilham , Siregar Alda Cendekia , Octariadi Barry Ceasar 
Published: June 2024

<p class="CenterText">Fish are cold-blooded animals that are widely utilized by humans. Fish are a diverse group of poikilothermic vertebrates with over 27,000 species worldwide. The large number of fish species poses a challenge in distinguishing between them. This study aims to implement and compare three popular Convolutional Neural Network (CNN) architectures, namely Xception, Nasnet, and MobileNet V3L, in the task of classifying marine fish species. The research results show that all three CNN architectures perform exceptionally well in classifying marine fish species. The MobileNet V3L architecture achieves the highest level of accuracy with a value of 99% for all evaluation metrics. The Xception architecture achieves an overall accuracy of 97%, while the NasNet architecture achieves an overall accuracy of 92%. Overall, the comparison indicates that the MobileNet V3L architecture is the best architecture in this study.</p><p class="CenterText" align="left"><strong>Keyword:</strong> Convolutional Neural Network; Transfer Learning; Sea Fish Classification</p><p class="CenterText" align="left"> </p><h3 align="center">Abstrak</h3><p>Ikan merupan hewan berdarah dingin yang banyak di manfaatkan oleh manusia. Ikan adalah kelompok <em>vertebrata poikilotermik</em> yang beraneka ragam dengan jumlah spesies lebih dari 27.000 di seluruh dunia. Banyaknya jumlah spesies ikan menjadi satu masalah dalam membedekan jenis ikan. Penelitian inibertujuan untuk menerapkan dan membandingkan tiga arsitektur <em>Convolutional Neural Network</em> (CNN) yang populer, yaitu <em>Xception, Nasnet, dan MobileNet V3L</em>, dalam tugas klasifikasi spesies ikan laut. Hasil penelitian menunjukkan bahwa semua tiga arsitektur CNN memiliki performa yang sangat baik dalam klasifikasi spesies ikan laut. Arsitektur <em>MobileNet V3L</em> mencapai tingkat akurasi tertinggi dengan nilai sebesar 99% untuk semua metrik evaluasi. untuk arsitektur <em>Xception</em> menghasilkan akurasi keseluruhan 97% dan arsitektur <em>NasNet </em>menghasilkan akurasi keseluruhan 92%. Secara keseluruhan perbandingan dapat dikatakan bahwa arsitektur <em>Mobilenet V3L</em> adalah arsitektur terbaik dalam penelitian ini.</p><p><strong>Kata kunci</strong><strong>:</strong><em> </em>Convolutional Neural Network; Transfer Learning; Klasifikasi Ikan Laut</p>