Jurnal Online Universitas Katolik Parahyangan / Parahyangan Catholic University Journal
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PENGARUH NANO-MATERIAL DAN BIOPOLIMER TERHADAP KARAKTERISTIK TANAH LUNAK UNTUK DESAIN PERKERASAN JALAN
No full textAbstract
The effect of soft soil modification using nano-materials and biopolymers on road pavement design is discussed in this paper. The nano-materials and biopolymers used in this research are nano-lime and nano-silica, with the biopolymer in the form of chitosan from shrimp shells. First, soil mixed with nano-materials with 1-5 matrix variations and 4 variations of biopolymer mixture (0.05%, 0.1%, 0.15%, and 0.2%) were tested in the laboratory to determine the effect of nano-materials and biopolymers on soft soil characteristics, which are expressed by the Atterberg Limit and California Bearing Ratio. Next, the data obtained was used to design road pavement. This study shows that the addition of nano-materials and biopolymers improves soil characteristics, both at the Atterberg Limit and the California Bearing Ratio of the soil. This soil improvement can reduce the thickness of the road pavement by 18.18%.
Keywords: soft soil; nano-materials; biopolymers; road pavement; road
Abstrak
Pengaruh modifikasi tanah lunak menggunakan nano-material dan biopolimer terhadap desain perkerasan jalan dibahas pada tulisan ini. Nano-material dan biopolimer yang digunakan pada penilitian ini adalah nano-kapur dan nano-silika, dengan biopolimer berupa chitosan dari kulit udang. Pertama, tanah campuran nano-material dengan variasi matriks 1-5 dan 4 variasi campuran biopolimer (0,05%, 0,1%, 0,15%, dan 0,2%) diuji di labora-torium untuk mengetahui pengaruh nano-material dan biopolimer terhadap karakteristik tanah lunak, yang dinya-takan dengan Atterberg Limit dan California Bearing Ratio. Selanjutnya, data yang diperoleh digunakan untuk merancang perkerasan jalan. Penelitian ini menunjukkan bahwa penambahan nano-material dan biopolimer memperbaiki karakteristik tanah, baik pada Atterberg Limit maupun pada California Bearing Ratio tanah tersebut. Perbaikan tanah ini dapat mengurangi tebal perkerasan jalan sebesar 18,18%.
Kata-kata kunci: tanah lunak; nano-material; biopolimer; perkerasan jalan; jala
KERUSAKAN RUAS JALAN BANGGOI–BULA KABUPATEN SERAM BAGIAN TIMUR
No full textAbstract
The condition of the Banggoi-Bula Road, in Eastern Seram Regency, is experiencing sinking damage, longitu-dinal cracks, and crocodile cracks. The aim of this research is to analyze the type and level of damage, design culverts, and determine the thickness of the pavement on the Banggoi-Bula Road Section. Determining the type of damage was carried out using the Pavement Condition Index method, culvert design using hydrological analysis, while determining the thickness of flexible pavement was carried out using the Pavement Design Manual 2017 method. After reviewing the condition of the road pavement surface that occurred on the Banggoi-Bula Road Section, it was concluded that the road damage conditions observed were at a moderate to very poor level. The culverts on this road section are designed to be 1.5 m wide and 1.8 m high. From the results of the road pavement analysis, the pavement design for the Banggoi-Bula Road Section was obtained, using a flexible type of pavement, with an AC-WC surface layer thickness of 40 mm, an AC-BC layer thickness of 60 mm, and the thickness of the class A foundation layer is 400 mm. Keywords: road; road damage; Pavement Condition Index; flexible pavement; culverts
Abstrak
Kondisi jalan pada Ruas Jalan Banggoi-Bula di Kabupaten Seram Bagian Timur mengalami kerusakan amblas, retak memanjang, dan retak kulit buaya. Tujuan penelitian ini adalah menganalisis jenis dan tingkat kerusakan, merancang gorong-gorong, dan menentukan tebal perkerasan pada Ruas Jalan Banggoi-Bula tersebut. Penentuan jenis-jenis kerusakan dilakukan dengan menggunakan metode Pavement Condition Index, perancangan gorong-gorong menggunakan analisis hidrologi, sedangkan penentuan tebal perkerasan lentur dilakukan dengan meng-gunakan metode Manual Desain Perkerasan 2017. Setelah melakukan tinjauan kondisi permukaan perkerasan jalan yang terjadi pada Ruas Jalan Banggoi-Bula, disimpulkan bahwa kondisi kerusakan di jalan yang diamati berada pada Tingkat Kerusakan sedang sampai dengan sangat buruk. Gorong-gorong di ruas jalan ini dirancang dengan lebar 1,5 m dan tinggi 1,8 m. Dari hasil analisis terhadap perkerasan jalan, didapat suatu desain perke-rasan untuk Ruas Jalan Banggoi-Bula, menggunakan jenis perkerasan lentur, dengan tebal lapis permukaan AC-WC 40 mm, tebal lapis AC-BC 60 mm, dan tebal lapis fondasi kelas A 400 mm.
Kata-kata kunci: jalan; kerusakan jalan; Pavement Condition Index; perkerasan lentur; gorong-goron
PENGARUH ARSITEKTUR ERA MAJAPAHIT PADA PENINGGALAN ARSITEKTUR ISLAM DI BANTEN DITINJAU BERDASARKAN TATA RUANG, SOSOK, DAN ORNAMEN
No full textAbstract - The Sultanate of Banten was one of the starting points for the spread of Islam in Java. Its location on the North Coast and its close relationship with Pasundan and Cirebon open up opportunities for influence from various parties to enter Banten. Given that the Sultanate of Banten (Islamic in nature) was established in the era of the Hindu-Buddhist transition to Islam in Java, it is possible that there is still Hindu-Buddhist influence, especially Majapahit as the last major empire that existed before Islam in Banten civilization, especially in terms of architecture and urban planning. This study discusses descriptive and qualitatively how the architectural elements in the heritage of Islamic architecture in Banten are influenced by the architecture of the Majapahit era and which were brought indirectly by Cirebon. The analysis carried out is based on spatial planning, figures, and ornaments as benchmarks that can be seen physically on the existing relics. Objects in Banten will be aligned with comparison objects from Majapahit, Cirebon, and also the Sendang Duwur Mosque complex. The results of the study indicate that the influence of Majapahit is still legible in Banten. This shows the syncretism that occurs between Hinduism and Islam, Sundanese and Javanese. This research is limited to the presence or absence of Majapahit elements in Banten architecture, so further research is needed to examine the interpretation of meaning and architectural evolution that occurs between figure and ornament, the proportion of Majapahit attributes to Banten.
Keywords: Transition, Majapahit, Influence, Architecture, Islam, BantenAbstrak - Kesultanan Banten merupakan salah satu titik awal penyebaran Islam di Jawa. Letaknya di Pantai Utara dan hubungannya yang dekat dengan Pasundan serta Cirebon membuka peluang masuknya pengaruh dari berbagai pihak di Banten. Mengingat bahwa Kesultanan Banten (bercorak Islam) berdiri pada era transisi Hindu-Buddha menuju Islam di Jawa, maka ada kemungkinan masih terdapat pengaruh Hindu Buddha khususnya Majapahit sebagai kerajaan besar terakhir yang ada sebelum Islam pada peradaban Banten, terutama secara sosok arsitektur dan tata kota nya. Penelitian ini membahas secara deskriptif kualitatif bagaimana elemen-elemen arsitektur yang ada pada peninggalan arsitektur Islam di Banten dipengaruhi oleh arsitektur era Majapahit dan yang dibawa secara tidak langsung oleh Cirebon. Analisis yang dilakukan adalah berdasarkan tata ruang, sosok, dan ornamen sebagai tolok ukur yang dapat dilihat secara fisik pada peninggalan yang ada. Objek yang ada di Banten akan disejajarkan dengan objek pembanding dari Majapahit, Cirebon, dan juga kompleks Masjid Sendang Duwur. Hasil penelitian menunjukan adanya pengaruh dari Majapahit yang masih terbaca di Banten. Hal ini menunjukan adanya sinkretisme yang terjadi antara Hindu dengan Islam, Sunda dengan Jawa. Penelitian ini dibatasi pada ada atau tidaknya unsur Majapahit pada arsitektur Banten, sehingga diperlukan penelitian lebih lanjut untuk meneliti tafsir makna dan evolusi arsitektur yang terjadi antara sosok dan ornamen, proporsi atribut Majapahit menuju Banten.
Kata Kunci: Transisi, Majapahit, Pengaruh, Arsitektur, Islam, Bante
Mengintegrasikan Prinsip Pembangunan Berkelanjutan dalam Pembelajaran Matematika untuk Merangsang Keterampilan Berkelanjutan pada Generasi Mendatang
No full textThis research constitutes a literature review employing a qualitative approach, analyzing scholarly articles, books, and other documents related to sustainable development. This article aims to summarize and analyze previous studies concerning sustainable development in the context of mathematics education, as well as strategies that can be employed to integrate the principles of sustainable education. Integrating the principles of sustainable development into education, including mathematics education, is crucial in fostering a more environmentally responsible society and promoting sustainability across all sectors. However, its implementation remains limited. Educators face various challenges, including a lack of time, resources, and understanding of sustainable education, along with a dearth of supportive teaching materials. The principles of sustainable development can serve as a framework for developing curricula and teaching practices that are more sustainable. Educators can select mathematical problems related to environmental or social issues, discuss relevant mathematical concepts in connection with these problems, and help students comprehend the impact of mathematical decisions on the environment and society. Integrating the principles of sustainable development into mathematics education not only aids in producing a generation with sustainable skills but also motivates students to learn mathematics in more engaging and meaningful ways. A learning approach centered around sustainable development can be an effective way to prepare students for a sustainable future. The article also underscores the necessity for curriculum development, training, and professional advancement for educators.Penelitian ini merupakan tinjauan pustaka yang menggunakan pendekatan kualitatif, menganalisis artikel ilmiah, buku, dan dokumen lain yang terkait dengan pembangunan berkelanjutan. Artikel ini bertujuan untuk merangkum dan menganalisis penelitian sebelumnya mengenai pembangunan berkelanjutan dalam konteks pendidikan matematika, serta strategi yang dapat digunakan untuk mengintegrasikan prinsip-prinsip pendidikan berkelanjutan. Mengintegrasikan prinsip-prinsip pembangunan berkelanjutan ke dalam pendidikan, termasuk pendidikan matematika, sangat penting dalam membentuk masyarakat yang lebih bertanggung jawab terhadap lingkungan dan mempromosikan keberlanjutan di semua sektor. Namun, implementasinya masih terbatas. Pendidik menghadapi berbagai tantangan, termasuk kurangnya waktu, sumber daya, dan pemahaman tentang pendidikan berkelanjutan, serta kekurangan bahan ajar yang mendukung pendekatan ini. Prinsip-prinsip pembangunan berkelanjutan dapat menjadi kerangka kerja untuk mengembangkan kurikulum dan praktik pengajaran yang lebih berkelanjutan. Pendidik dapat memilih masalah matematika yang terkait dengan isu-isu lingkungan atau sosial, membahas konsep matematika yang relevan dalam kaitannya dengan masalah-masalah ini, dan membantu siswa memahami dampak keputusan matematika terhadap lingkungan dan masyarakat. Mengintegrasikan prinsip-prinsip pembangunan berkelanjutan ke dalam pendidikan matematika tidak hanya membantu menciptakan generasi dengan keterampilan berkelanjutan tetapi juga memotivasi siswa untuk belajar matematika dengan cara yang lebih menarik dan bermakna. Pendekatan pembelajaran yang berpusat pada pembangunan berkelanjutan dapat menjadi cara efektif untuk mempersiapkan siswa untuk masa depan yang berkelanjutan. Artikel ini juga menekankan pentingnya pengembangan kurikulum, pelatihan, dan pengembangan profesional bagi pendidik
Analisis Pengaruh E-Service Quality, E-Word Of Mouth, serta Promotion dan Ads Terhadap Loyalitas Konsumen di Marketplace
No full textThe trend of digital-based transactions continues to increase along with the implementation of social restrictions during the pandemic, even it becomes a new habit for the millennial generation after the pandemic ends. In Southeast Asia, Indonesia was the first rank for the retail sales through e-commerce in 2021. The competition among e-commerce, especially the marketplaces in Indonesia has become very tight. Customer satisfaction, trust and loyalty are the important indicators for improving marketplace performance. In this research, there are three main factors that are further investigated for their influence on customer satisfaction, trust, and loyalty namely e-service quality, e-word of mouth along with promotion and ads. The research was conducted on 162 Tokopedia user with the majority of the millennial generation. Hypothesis testing was carried out using the partial least square structural equation (PLS-SEM) technique. The results of this study indicate that e-service quality has a significant effect on loyalty through satisfaction and trust, promotion and ads has a significant effect on loyalty through satisfaction, and e-word of mouth has no significant effect on satisfaction, trust and consumer loyalty. To get consumer loyalty, the marketplace can improve e-service quality which has the most significant effect followed by promotion and ads.Tren transaksi berbasis digital terus meningkat seiring dengan berlakunya pembatasan sosial selama masa pandemi, bahkan menjadi kebiasaan baru masyarakat khususnya generasi milenial setelah masa pandemi berakhir. Di Asia Tenggara, Indonesia menduduki peringkat pertama sebagai penjualan retail melalui e-commerce terbanyak pada tahun 2021. Persaingan antar e-commerce khususnya marketplace di Indonesia menjadi sangat ketat. Kepuasan, kepercayaan dan loyalitas konsumen menjadi indikator penting untuk dapat meningkatkan performa marketplace. Pada penelitian ini terdapat tiga faktor utama yang diteliti lebih lanjut pengaruhnya terhadap kepuasan, kepercayaan dan loyalitas konsumen yaitu e-service quality, e-word of mouth serta promotion dan ads. Penelitian dilakukan terhadap 162 responden pengguna Tokopedia dengan mayoritas generasi milenial. Pengujian hipotesis dilakukan menggunakan teknik partial least square structural equation (PLS-SEM). Hasil penelitian ini menunjukkan e-service quality berpengaruh signifikan terhadap loyalitas melalui kepuasan dan kepercayaan, promotion dan ads berpengaruh signifikan terhadap loyalitas melalui kepuasan, dan e-word of mouth tidak memiliki pengaruh yang signifikan terhadap kepuasan, kepercayaan dan loyalitas konsumen. Untuk mendapatkan loyalitas konsumen, marketplace dapat meningkatkan e-service quality dimana memiliki pengaruh paling signifikan diikuti oleh promotion dan ads
The Creative Tension between the Universal Church and the Local Church
No full textThe universal dimension of the Church does not always go hand in hand with the fact that it has to manifest itself in a local community, that is to say, a local Church presided by a bishop. History has witnessed that sometimes there were tensions between the two. The solutions offered are oftentimes one-sided. One may become either a staunch defender of universality or a radical proponent of the local Church. However, neither of these two positions are fruitful for the growth of the Church worldwide among the faithful: while holding one dimension, one can easily overlook the other. Ecclesiology might have to explore different approaches that can relate these positions, bearing in mind the needs of the local Church and the fatihful. What is needed in dealing with the tension is creativity. The tension may never be resolved without being creative in exploring new ways of constructing local theologies
Book & Film Reviews
No full textBook & Film Reviews is a column in "MELINTAS" containing reviews of books and films published recently that bring different interpretation and inspiration to the fields of philosophy and religion
The Effectiveness of Improvisational Music Therapy on Emotion Regulation of Children with Autism Spectrum Disorder: Randomised Controlled Trial
No full textChildren with Autism Spectrum Disorder (ASD) show deficits in social interaction and social communication. There are some physical and psychological problems. Some children with autism spectrum disorder exhibit difficulties in expressing their emotions. However, emotions play a crucial role in social interaction and communication. Various music therapy methods have been developed to support emotional expression in this population, one of which is improvisational music therapy. This study was aimed to know the effectiveness of improvisational music therapy for children who were diagnosed with autism spectrum disorder in terms of emotion regulation. The design of this research is a quantitative method using randomised controlled trials (RCT). Pre- and post-tests were used in this study. The tool of this research is the Difficulties in Emotion Regulation Scale (DERS). The result of this RCT maps the effectiveness of improvisational music therapy for emotion regulation. Improvisational music therapy can be used by children to express their emotions freely. This study demonstrates that participants were able to regulate their emotions and exhibited significant positive changes in perception building. The findings suggest that improvisational music therapy can be a valuable intervention for other populations experiencing difficulties with emotional regulation and a means to find connections between the mind and the events in the real world
POTENSI PARTISIPASI MAHASISWA UNIVERSITAS KATOLIK PARAHYANGAN UNTUK IMPLEMENTASI PARKIR DENGAN HARGA DINAMIS
No full textTransportation on campus is crucial for daily activities, yet challenges like limited parking, traffic jams, and inefficient private vehicle use persist. This study aims to analyze the potential of implementing a dynamic pricing approach in managing campus transportation, considering variable parking rates during peak hours. This research employs binary logistic regression to understand user preferences for commuting to campus. Data from respondents\u27 preferences are collected to develop the model, considering factors like parking fees, mileage, transportation costs, and other preferences. The study reveals that the on-arrival parking rate and discount attributes significantly influence the respondents\u27 decisions. Moreover, respondents\u27 income or pocket money and comfort level with parking positions also impact their choices.
ABSTRAK
Transportasi di lingkungan kampus memiliki peran penting dalam kegiatan sehari-hari. Namun, masalah seperti keterbatasan parkir, kemacetan, dan efisiensi penggunaan kendaraan pribadi sering terjadi. Penelitian ini bertujuan untuk melakukan analisis potensi penerapan tarif dinamis dalam mengelola transportasi kampus, dengan mempertimbangkan harga parkir yang berubah sesuai jam sibuk. Skema tarif dinamis mencakup diskon parkir, tarif parkir flat, dan hari dengan tarif khusus. Metode regresi logistik biner digunakan untuk mempelajari preferensi pengguna dalam memilih transportasi ke kampus. Data preferensi dari responden digunakan untuk mengembangkan model regresi logistik biner, yang mempertimbangkan biaya parkir, jarak tempuh, biaya transportasi, dan preferensi lainnya. Hasil penelitian menunjukkan bahwa atribut yang signifikan mempengaruhi keputusan responden adalah tarif parkir saat datang dan diskon parkir. Karakteristik responden yang berpengaruh adalah pemasukan atau uang saku, serta tingkat kenyamanan posisi parkir
ANALISIS SISTEM DISTRIBUSI PERGERAKAN KOMODITAS PERIKANAN DI WILAYAH NUSA TENGGARA BARAT
No full textIn the era of globalization and rapid population growth, the demand for fishery products continues to increase. With its vast and diverse marine waters, Indonesia offers abundant potential fisheries resources. One region in Indonesia characterized by extensive coastlines and a fertile marine ecosystem is the West Nusa Tenggara Province (NTB). This research analyzes commodity movement in the fishery sector based on internal zone commodities in NTB. The study employs various analyses for the transportation balance model based on regional internal zone commodity product production, considering factors that influence the process. The research results indicate two optimal land transportation routes with the shortest total distance. Route 1 (Central Lombok-West Lombok-Mataram City-East Lombok-Central Lombok) was identified using the nearest neighbor method, and Route 2 (Sumbawa-West Sumbawa-Dompu-Bima-Sumbawa) was determined using the nearest insertion method.
ABSTRAK
Di era globalisasi dan pertumbuhan populasi yang cepat, permintaan produk perikanan terus meningkat. Indonesia memiliki wilayah perairan yang luas dan beragam, yang menawarkan potensi sumber daya perikanan yang melimpah. Salah satu wilayah Indonesia yang memiliki pesisir luas dan kondisi ekosistem laut yang subur adalah Provinsi Nusa Tenggara Barat (NTB). Tujuan penelitian ini adalah untuk melakukan analisis pergerakan komoditas, untuk sektor komoditas ikan berbasis zona internal di NTB. Penelitian ini menggunakan beberapa analisis untuk model keseimbangan pergerakan transportasi barang berdasarkan produksi komoditas produk bangkitan zona internal regional, dengan menimbang faktor apa saja yang mempengaruhi. Hasil penelitian menunjukkan terdapat 2 rute moda darat untuk rute pengiriman paling optimal dengan total jarak terkecil. Rute-rute tersebut adalah rute 1 (Lombok Tengah–Lombok Barat-Kota Mataram-Lombok Timur-Lombok Tengah) dengan menggunakan metode nearest neighbor, dan rute 2 (Sumbawa-Sumbawa Barat-Dompu-Bima-Sumbawa), dengan menggunakan metode nearest insertion