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STUDI TENTANG POTENSI SERAT NANO PVA/AGNO3 SEBAGAI MATERIAL ANTI BAKTERI MELALUI PROSES ELEKTROSPINNING UNTUK APLIKASI MEDIS Hendra Hendra
Arena Tekstil Vol 38, No 1 (2023)
Publisher : Balai Besar Tekstil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31266/at.v38i1.8087

Abstract

PVA atau Polyvinil Alcohol adalah polymer yang larut dalam air serta memiliki kekuatan dan modulus yang tinggi. PVA merupakan polymer yang sangat menarik sehingga banyak peneliti-peneliti yang menggunakan PVA untuk pembuatan serat-serat nano melalui proses elektrospinning. Pada tulisan ini, PVA yang dilarutkan dalam air, selanjutnya dibuat menjadi serat-serat nano dengan menggunakan teknik elektrospinning. Parameter proses saat pembuatan serat seperti konsentrasi larutan, jarak antara ujung jarum dengan kolektor, kecepatan penyuapan larutan, dan tegangan listrik divariasikan sehingga diperoleh informasi diameter tertentu dari serat sehingga cocok untuk diaplikasikan untuk produk-produk tertentu seperti halnya filtrasi. Diameter dari serat-serat nano yang dibuat dengan berbagai macam variasi parameter tersebut selanjutnya diinvestigasi dengan menggunakan Scanning Electron Microscope. Hasil menunjukkan, dengan menambah tegangan listrik dari 30 Kv sampai 38 Kv, diameter serat menurun saat parameter yang lain dijaga secara konstan. Akan tetapi, ditemukan bahwa diameter serat-serat nano terlihat meningkat saat konsentrasi larutan ditingkatkan dari 5% sampai ke 15%. Fenomena menurunnya diameter serat-serat nano terlihat juga saat kecepatan penyuapan larutan ditingkatkan dari 0,4 ml/jam sampai ke 1,2 ml/jam. Merujuk pada perubahan jarak antara ujung jarum dengan kolektor, terlihat bahwa diameter serat-serat nano menurun ketika jarak diubah dari 5 cm ke 10 cm, akan tetapi pada saat jarak jarum dan kolektor ditingkatkan menjadi 15 cm, diameter serat-serat nano terlihat meningkat. Selanjutnya, kami perluas penelitian ini dengan menambahkan anti bakteri AgNO3 pada larutan PVA untuk mengetahui efek dari konsentrasi AgNO3 dalam larutan terhadap diameter serat-serat nano serta dampaknya terhadap aktivitas bakteri. Hasil menunjukkan bahwa konestrasi AgNO3 pada larutan menunjukkan diameter yang lebih besar, dan kemampuan yang lebih tinggi dalam meredam aktivitas bakteri. Penemuan ini akan sangat bermanfaat untuk pembuatan material yang dapat dipalikasikan untuk bidang medis seperti material pembalut luka.
Crypto Asset dan Regulasi Pajak: Tinjauan Hukum Keuangan Digital Komariyah, Fitri; Hendra
JOURNAL OF ECONOMICS, BUSINESS, MANAGEMENT, ACCOUNTING AND SOCIAL SCIENCES Vol. 3 No. 4 (2025): MAY 2025
Publisher : PUTRA JAWA PUBLISHER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63200/jebmass.v3i4.205

Abstract

Aset kripto telah berkembang menjadi instrumen keuangan digital yang signifikan dalam arsitektur keuangan global, menimbulkan tantangan hukum dan fiskal bagi banyak negara, termasuk Indonesia. Ketidakpastian regulasi dan kompleksitas karakteristik teknologi blockchain mendorong perlunya kerangka hukum yang adaptif dan responsif terhadap dinamika ekonomi digital. OECD (2020) menekankan pentingnya transparansi pajak atas aset digital lintas negara guna mencegah penghindaran dan pengelakan pajak. Di sisi lain, Zetzsche, Buckley, dan Arner (2020) menggarisbawahi bahwa kegagalan dalam merumuskan regulasi yang tepat dapat menciptakan celah hukum dan risiko sistemik bagi stabilitas fiskal. Penelitian ini bertujuan untuk meninjau aspek hukum perpajakan atas aset kripto dari perspektif hukum keuangan digital, dengan menggunakan pendekatan yuridis normatif dan analisis komparatif. Hasil analisis menunjukkan bahwa meskipun Indonesia telah mengatur pajak atas transaksi aset kripto, ketidakterpaduan antar lembaga dan ketertinggalan regulasi teknologi menjadi kendala dalam pelaksanaannya. Oleh karena itu, dibutuhkan reformulasi kebijakan yang selaras dengan prinsip good governance dan standar internasional.
PENGARUH HARGA DAN BRAND IMAGE TERHADAP MINAT MENGINAP DI BOBOCABIN Christabella Eilin Setyawan; Basilius Agung Eka Saputra Assa; Nabila Salsabila Samodro; Hendra
JURNAL ILMIAH EDUNOMIKA Vol. 9 No. 3 (2025): EDUNOMIKA
Publisher : ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/jie.v9i3.18146

Abstract

This research aims to determine the influence of price and brand image on consumer interest in staying at Bobocabin. The study uses a quantitative approach with data collected through structured questionnaires from respondents aged 17–50 years. The results of multiple linear regression analysis show that both price and brand image have a positive and significant effect on the intention to stay at Bobocabin. The coefficient of determination (R²) is 0.808, indicating that 80.8% of the variation in stay intention can be explained by price and brand image. These findings suggest that competitive pricing and a strong brand image are key factors in attracting consumer interest. Keywords : Price, Brand Image, Interest in staying, Bobocabin
KAJIAN BENTUK, FUNGSI DAN KREATIVITAS RUMAH RAJUT SYAFIR KOTO LAWEH Hendra; Harissman; Nofrial; Ferawati; Zam, Riswel
Gorga : Jurnal Seni Rupa Vol. 12 No. 2 (2023): Gorga : Jurnal Seni Rupa
Publisher : Fakultas Bahasa dan Seni Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak Kerajinan rajut tangan “Rumah Rajut Syafir”, merupakan sentra kerajinan rajut yang berada di Nagari Koto Laweh Kecamatan X Koto Kabupaten Tanah Datar. Usaha yang dirintis tahun 2016 dan menghasilkan beragam produk rajutan. Produk yang dihasilkan memiliki keberagaman bentuk dan fungsi. Penelitian ini bertujuan untuk mengetahui pengaruh dari keberadaan Rumah Rajut Syafir bagi perkembangan kriya rajut Sumatera Barat. Seiring dengan perkembangan zaman dan perubahan selera masyarakat, Rumah Rajut Syafir juga selalu berupaya untuk meningkatkan kualitas dan kuantitas produk yang dihasilkannya. Untuk mengulas lebih jauh mengenai produk yang dihasilkan, maka digunakan pendekatan dengan menggunakan teori bentuk dan fungsi sehingga dapat dianalisa mengenai keberagaman bentuk dan fungsi produk. Data diperoleh dengan pendekatan kualitatif untuk mendapatkan beragam informasi terkait bentuk dan fungsi produk yang dihasilkan. Produk yang dihasilkan berupa aksesoris sederhana seperti gelang, boneka kecil, tempat tisu dan lainnya. Namun seiring berjalannya waktu, produk yang dihasilkan juga semakin beragam seperti jaket rajut, tas rajut dengan motif khas Minangkabau dan hiasan dinding dan hal ini tentunya merupakan  respon rumah Rajut Syafir terhadap selera pasar. Untuk menganalisis produk yang dihasilkan maka digunakan teori bentuk Clive bell dan teori fungsi yang dikemukakan oleh Feldman. Hasil dari analisis data di lapangan dapat dilihat bagaimana karakter bentuk, fungsi dan kreativitas dari pengrajin di rumah Rajut Syafir. Dari analisis tersebut dapat disimpulkan bahwa kerajinan Rajut Syafir bertransformasi menghasilkan produk yang menyesuaikan dengan kebutuhan masyarakat.   Kata Kunci:  Rajut Syafir, Bentuk, Fungsi, Kreativitas   Abstract The hand-knitting craft "Shafir Knitting Home" located in Nagari Koto Laweh, X Koto District Tanah Datar. This craftbusiness was started in 2016 and produces a variety of knitted products. The products that made have a variety of shapes and functions. This study aims to influence the existence of the Syafir Knitting House for the development of West Sumatra knitting crafts. Along with the times and changes in people's tastes, Syafir's Knitting House also always strives to improve the quality and quantity of the products it produces. To review more about the products produced, an approach is used using the theory of form and function so that it can be analyzed regarding the diversity of product forms and functions. The data was obtained using a qualitative approach to obtain a variety of information regarding the shape and function of the products produced. The products produced are in the form of simple accessories such as bracelets, small dolls, tissue holders and others. However, as time goes by, the products produced are also increasingly diverse, such as knitted jackets, knitted bags with Minangkabau motifs and wall hangings and this is of course Syafir's Knitting house's response to market tastes. To analyze the product that produced, Clive Bell's form theory and function theory proposed by Feldman are used. The results of the data analysis in the field can be seen how the character forms, functions and creativity of the craftsmen at Syafir's Knitting house. From this analysis it can be concluded that Syafir's knitting craft is transformed into products that adapt to the needs of the community.             Keywords: Syafir knitting, shape, function, creativity
Analisis Miskonsepsi Materi Termodinamika Dengan Menggunakan Four Tier Diagnostik Pada Kelas X SMA Negri 1 Sinunukan Tahun Ajaran 2023/2024 hendra; Eni Sumanti Nasution; Kasmawati
JURNAL PENDIDIKAN ILMU PENGETAHUAN ALAM Vol. 2 No. 1 (2024): Jurnal Pendidikan Ilmu Pengetahuan Alam (November 2024)
Publisher : Universitas Gara Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/fisika.v2i1.1519

Abstract

This study aims to identify students misconceptionson the concept of thermodynamics by using four-tier diagnostic test with google formulir. This research was condusted at SMA Negeri 1 Sinunukan in the even semester of the 2023/2024 school year. The method used is descriptive method. The subjects of this research were students of class X IPA in SMA Negri 1 Sinunukan who had studied the concept of thermodynamics with a sample of 135 students by selecting samples using apurposive sample technique. The research instrument was a four-tier diagnostic test instrument compiled based on the independent curiculum. The research data was processed based on a combination of student answer on the four- tier diagnostic test. The results showed that overall misconception was 71%,understanding concepts was 15%, and not understanding concepts was 14%.
The Role of Internet of Things in Smart Business Decision-Making: A Narrative Review Liantifa, Melifia; Hendra; Sekianti, Atik
Novatio : Journal of Management Technology and Innovation Vol. 3 No. 2 (2025): April 2025
Publisher : Indonesian Scientific Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61978/novatio.v3i2.1024

Abstract

The Internet of Things (IoT) has emerged as a critical driver of smart business decision-making, enabling organizations to enhance efficiency, transparency, and responsiveness across industries. This narrative review examines the integration of IoT into business systems, focusing on its contributions to Enterprise Resource Planning (ERP), marketing strategies, sustainability leadership, smart environments, and sector-specific applications in agriculture, education, and healthcare. Literature was systematically collected from Scopus, Web of Science, and Google Scholar, using targeted keywords and Boolean operators. Inclusion criteria prioritized peer-reviewed studies that examined IoT in relation to business decision-making, resulting in a dataset of empirical and conceptual research published between 2018 and 2024. Findings reveal that IoT enhances decision-making accuracy through ERP integration, strengthens marketing strategies by enabling real-time consumer insights, and supports sustainability leadership by advancing Environmental, Social, and Governance (ESG) practices. In addition, IoT facilitates the development of smart environments that leverage big data and artificial intelligence for predictive analytics. Sectoral evidence confirms IoT’s effectiveness in improving agricultural productivity, optimizing educational management, and enabling remote healthcare monitoring. Nonetheless, critical systemic challenges persist, particularly cybersecurity threats such as data breaches, lack of common interoperability standards across IoT platforms, and infrastructural readiness gaps in regions with limited digital capacity. These barriers highlight the need for supportive policies, investment in digital infrastructure, and organizational cultures receptive to technological change. Future research should focus on empirical validation of IoT’s impact on managerial decision quality and explore cross-sectoral comparisons to enrich theoretical and practical understanding. By addressing these challenges, IoT can fulfill its promise as a transformative enabler of sustainable and innovative business strategies.
Efektivitas Penggunaan Media Kartu Warna Terhadap Keterampilan Menulis Pantun Siswa Sekolah Dasar Hendra; Bahrun; Munir
Jurnal Ilmu Pendidikan Dasar Indonesia Vol 2 No 1 (2022): DESEMBER
Publisher : Pusat Pengembangan Pendidikan dan Bakat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/judikdas.v2i1.832

Abstract

This study aims to find out how the effectiveness of Wana Card media on students' rhyme writing skills in Indonesian language learning class V of SD Negeri Tille. This type of research is a quantitative experiment (pre-experimental). This design uses an experimental class given a learning model. After being given the treatment, a final test was given. The normality testing criteria is sig value > 0.05, the data is normally distributed, if sig < 0.05, the data is not normally distributed. From the test results, the Pretest value is 0.007 > 0.05 and the Post-test value is 0.07 > 0.05. From these tests, it can be concluded that the Pretest value is greater than 0.05 and the Post-test value is greater than 0.05. The homogeneity test results obtained Sig value α = 0.198, this means that the Sig value is greater than α (0.198 > 0.05) so that it can be concluded that the two groups are homogeneous. the hypothesis results obtained Sig (2.Tailed) = 0.000 meaning that H0 is rejected because Sig (2.Tailed) < α or (0.000 < 0.05). H1 is accepted because Sig (Tailed) > α or (0.198 > 0.05). In the T test analysis, Sig < table or (0.198 < 1.267).
The Rejection of Rohingya Refugees in Aceh: A Scientific Analysis from Human Rights and Public Policy Perspectives Athoillah, Syafiq; Hendra
Al Mabhats : Jurnal Penelitian Sosial Agama Vol 9 No 2 (2024): Al Mabhats : Jurnal Penelitian Sosial Agama
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat IAIN Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47766/almabhats.v9i2.3392

Abstract

This scientific analysis critically examines the polemic surrounding the rejection of Rohingya refugees in Aceh, Indonesia. Drawing from the fields of human rights and public policy, the study explores the reasons behind the rejection, including concerns about the behaviour and attitudes of Rohingya people in refugee camps. The analysis provides a comprehensive examination of the issue, considering the ethical implications and socioeconomic considerations from a scientific standpoint. This study aims to Aceh's policy on refugees and asylum seekers, focusing on the legal framework and the country's approach as a transit nation. The analysis includes an exploration of Indonesia's handling of refugees, provisions for interception and rescue, and the absence of long-term resettlement options. The article also discusses the implications of Indonesia's stance on the Rohingya crisis and the sustainability of Aceh's hospitality towards refugees. The article raises questions about the future prospects for greater hospitality and the granting of rights to refugees in Indonesia and neighbouring countries. The research results also show Approaching the rejection of Rohingya refugees in Aceh through a scientific lens allows policymakers to navigate this issue effectively. By integrating human rights principles, ethical considerations, and socioeconomic factors, policies can be formulated to protect refugees' rights while promoting the well-being of the host community
Analisis Miskonsepsi Materi Termodinamika Dengan Menggunakan Four Tier Diagnostik Pada Kelas X SMA Negri 1 Sinunukan Tahun Ajaran 2023/2024 hendra; Eni Sumanti Nasution; Kasmawati
JURNAL PENDIDIKAN ILMU PENGETAHUAN ALAM Vol. 2 No. 1 (2024): Jurnal Pendidikan Ilmu Pengetahuan Alam (November 2024)
Publisher : Universitas Gara Nusantara Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64168/fisika.v2i1.1519

Abstract

This study aims to identify students misconceptionson the concept of thermodynamics by using four-tier diagnostic test with google formulir. This research was condusted at SMA Negeri 1 Sinunukan in the even semester of the 2023/2024 school year. The method used is descriptive method. The subjects of this research were students of class X IPA in SMA Negri 1 Sinunukan who had studied the concept of thermodynamics with a sample of 135 students by selecting samples using apurposive sample technique. The research instrument was a four-tier diagnostic test instrument compiled based on the independent curiculum. The research data was processed based on a combination of student answer on the four- tier diagnostic test. The results showed that overall misconception was 71%,understanding concepts was 15%, and not understanding concepts was 14%.
ANALISIS TINGKAT KEPUASAN PELANGGAN TERHADAP KUALITAS PELAYANAN PADA TOKO PLASTIK RIZKA DI TENGGARONG Yanti, Meli; Wijayanti, Silvana; Hendra
I-Con Media مجلد 8 عدد 1 (2025): I-Con Media
Publisher : SEKOLAH TINGGI ILMU EKONOMI TENGGARONG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61509/luxICM81101

Abstract

Customer satisfaction is an important thing in business place satisfaction becauseif customers feel dissatisfied it will make consumers disloyal to that place ofbusiness. The writing of this final assignment uses five dimensions which includethe dimensions of direct evidence (tangibility), reliability, responsiveness,assurance and empathy to determine the level of consumer satisfaction with theservice at the Risca Plastic Shop. The problems that occur in this business placeare regarding customer satisfaction in the aspects of cleanliness and tidiness, thelocation of the business place and employees in providing orders according toconsumer wishes. This can be seen from the interview results which show that thereare still respondents who feel quite satisfied. The author suggests that businessowners pay more attention to the cleanliness of their business premises by creatinga special warehouse to store supplies and making signboards to make it easier forconsumers to find their business premises. And create a policy to increaseemployees so they don't ask questions when handling their work.Keywords: Consumer Satisfaction, Service Quality and Buying Decision