ITB Journal
Not a member yet
5999 research outputs found
Sort by
BRAND IDENTITY ANALYSIS OF FACEBOOK META LOGO. INC. AND M-SENSE MIGRAINE USING SEMIOTICS AND VISUAL COGNITIVE
Full text linkLogo has a significant role in building brand identity. Nevertheless, the understanding of visual identity from one brand to another often experiences visual cognitive differences. This affects the identity of a brand due to a lack of knowledge of visual information such as the case of M-sense Migraine and Meta Facebook. In this study, researcher used the descriptive analysis as a method with semiotics and visual cogntive approach. The results explained that there is misinterpretation of visual information related to Meta logos and M-sense. The lack of knowledge of the audience towards both brands which ultimately creates confusion in the minds of the audience and undermines an exclusivity elements in building brand identity.Logo memiliki peran penting dalam membangun identitas merek. Meski demikian, pemahaman identitas visual antara merek satu dengan merek lainnya seringkali mengalami perbedaan kognitif visual. Hal ini berdampak pada identitas suatu brand akibat kurangnya pengetahuan terhadap informasi visual seperti pada kasus M-sense Migraine dan Meta Facebook. Dalam studi ini, peneliti menggunakan metode analisis deskriptif dengan pendekatan semiotika dan kognitif visual. Hasil penelitian menjelaskan bahwa terdapat kesalahan interpretasi informasi visual terkait Meta logo dan M-sense. Kurangnya pengetahuan khalayak terhadap kedua merek tersebut yang pada akhirnya menimbulkan kebingungan di benak khalayak dan menggerogoti unsur eksklusivitas dalam membangun identitas merek
An Algorithm to Construct a Tridiagonal Matrix Factored by Bidiagonal Matrices with Prescribed Eigenvalues and Specified Entries
Full text linkThis paper presents an algorithm to construct a tridiagonal matrix factored by bidiagonal matrices with prescribed eigenvalues and specified matrix entries. The proposed algorithm addresses inverse eigenvalue problems (IEPs) constrained by LR decomposition. Using techniques from discrete soliton theory, we derive recurrence relations that connect matrix entries and eigenvalues. The algorithm systematically computes unknown entries in the matrix from given spectrum data and partial matrix information. Several examples, including cases with real, complex, and multiple eigenvalues, demonstrate the efficiency of the proposed algorithm. Additionally, we provide conditions under which the algorithm successfully solves the IEP
Gaya Bahasa Repetisi Dalam Tindak Tutur Asertif Pada Wacana Debat Keempat Calon Wakil Presiden Indonesia 2024
Full text linkThis study investigates the role of repetition as a linguistic strategy in assertive speech acts within the debate discourse of the fourth vice-presidential candidates leading up to the 2024 election. Specifically, it examines the thematic relationships between repetitive figures of speech and assertive speech acts used by the first, second, and third vice-presidential candidates, utilizing NVivo 12 Plus for data visualization. Adopting a qualitative descriptive method, the study identifies instances of repetition in assertive speech acts, categorizing them into two primary functions: "stating" (three instances) and "explaining" (three instances). A pragmatic analysis reveals that repetition occurs at both the word and phrase levels, primarily serving to reinforce emphasis and strengthen the speaker's stance in political discourse. Moreover, NVivo 12 Plus analysis illustrates a hierarchical structure linking figures of speech, assertive speech acts, and their communicative functions. These findings underscore the strategic role of repetition as a persuasive tool in political debates, demonstrating its effectiveness in reinforcing arguments and enhancing audience recall. The study offers practical insights into political communication strategies, particularly for speechwriters, debate analysts, and politicians seeking to optimize message clarity and impact.Penelitian ini menyelidiki peran repetisi sebagai strategi linguistik dalam tindak tutur asertif dalam wacana debat empat calon wakil presiden menjelang Pemilu 2024. Secara khusus, penelitian ini menganalisis hubungan tematik antara majas repetisi dan tindak tutur asertif yang digunakan oleh calon wakil presiden pertama, kedua, dan ketiga, dengan memanfaatkan NVivo 12 Plus untuk visualisasi data. Dengan menggunakan metode deskriptif kualitatif, penelitian ini mengidentifikasi kemunculan repetisi dalam tindak tutur asertif yang dikategorikan ke dalam dua fungsi utama: "menyatakan" (tiga kali kemunculan) dan "menjelaskan" (tiga kali kemunculan). Analisis pragmatik menunjukkan bahwa repetisi terjadi pada tingkat kata dan frasa, terutama berfungsi untuk memperkuat penekanan dan mempertegas sikap penutur dalam wacana politik. Selain itu, analisis menggunakan NVivo 12 Plus mengungkapkan adanya struktur hierarkis yang menghubungkan majas repetisi, tindak tutur asertif, dan fungsi komunikatifnya. Temuan ini menegaskan peran strategis repetisi sebagai alat persuasif dalam debat politik, yang menunjukkan efektivitasnya dalam memperkuat argumen dan meningkatkan daya ingat audiens. Studi ini memberikan wawasan praktis tentang strategi komunikasi politik, khususnya bagi penulis pidato, analis debat, dan politisi yang ingin mengoptimalkan kejelasan serta dampak pesan mereka
Implementasi L ogika Fuzzy dan IoT untuk Pemantauan dan Optimalisasi Pengoperasian Lampu dan Pendingin Udara
Full text linkGenerally, the operation of lights and Air Conditioners (AC) in a room is still done manually and is not adjusted to actual needs or conditions. This can cause a waste of electrical energy, which increases electricity costs. This research aims to design a room light and temperature control system to optimize the operation of lights and air conditioners in accordance with SNI 6197:2011 concerning lighting standards and SNI T-14-1993-037 concerning thermal standards. The operation of the lamp is based on three light conditions, namely, dark, medium, and bright. The operation of the AC with three membership sets of temperature, namely, down, medium, and up, is the result of processing the Sugeno fuzzy logic method based on three membership sets of room temperature, namely, cold, normal, and hot, and also based on three membership sets of the number of people, namely, few, medium, and many. This system consists of an SHT20 temperature sensor, TSL2561 light sensor, HC-SR501 motion sensor, E3JK-S4M2 photoelectric sensor, and PZEM-004T electrical sensor as well as ESP32 microcontroller as the controller of TL light actuator and air conditioners actuator. The results of testing for two days at the PPNS Robotics and Artificial Intelligence Laboratory show that the designed system can reduce the use of electrical energy by 14.2 kWh, equivalent to Rp.7.512,44,- from 32.5 kWh, equivalent to Rp.33,950,- to 18.3 kWh, equivalent to Rp.26,438,-.Secara umum, pengoperasian lampu dan pendingin udara (AC / Air Conditioner) pada suatu ruangan masih dilakukan secara manual yang tidak disesuaikan dengan kebutuhan atau kondisi sebenarnya (aktual). Hal ini dapat menyebabkan pemborosan energi listrik yang berdampak pada peningkatan biaya listrik. Penelitian ini bertujuan untuk merancang sistem pengontrolan cahaya dan suhu ruangan untuk optimalisasi pengoperasian lampu dan pendingin udara sesuai dengan SNI 6197:2011 tentang standar pencahayaan dan SNI T-14-1993-037 tentang standar termal. Pengoperasian lampu berdasarkan tiga kondisi cahaya yaitu, gelap, sedang, dan terang. Pengoperasian pendingin udara dengan tiga himpunan keanggotaan suhu pendingin udara yaitu, turun, sedang, dan naik merupakan hasil pengolahan metode logika fuzzy Sugeno berdasarkan tiga himpunan keanggotaan suhu ruangan yaitu, dingin, normal, dan panas serta juga berdasarkan tiga himpunan keanggotaan jumlah orang yaitu, sedikit, sedang, dan banyak. Sistem ini terdiri dari sensor suhu SHT20, sensor cahaya TSL2561, sensor gerak HC-SR501, sensor fotoelektrik E3JK-S4M2 dan sensor listrik PZEM-004T serta mikrokontroler ESP32 sebagai pengontrol aktuator lampu TL dan aktuator pendingin udara. Dari hasil pengujian selama dua hari di Laboratorium Robotika dan Kecerdasan Buatan PPNS menunjukkan bahwa sistem yang dirancang mampu mengurangi penggunaan energi listrik sebesar 14.2 kWh setara Rp.7.512,44,- dari 32,5 kWh setara Rp.33.950,- menjadi 18,3 kWh setara Rp.26.438,-
Linear Mixed Model for Oil Palm Parents Selection
Full text linkThe objective of plant breeding is to obtain superior seeds. These seeds originated from parents that can pass their superior traits to their progeny. The observed characteristics of the progeny (phenotype) determined the traits of these seeds. Therefore, we performed a progeny analysis. In this analysis, the data samples were collected from Riau in Sumatera and Kumai in Kalimantan (two locations). The main objective is to find superior parents from these two locations. The superiority of the selected parents lies not only in passing high production traits but also in adaptability (fit) to the diversity or variability of the environment or locations. This analysis calculates the General Combining Ability (GCA) values for both male and female parents using the Linear Mixed Model (LMM). The experimental design, as the source of data, was an alpha lattice design, so the LMM contains locations, replicas, blocks, male and female parents, and the progeny factors. The analyzed phenotype is Fresh Fruit Bunches of third-year production. Since the data sets of the two locations were nonintersect, the model uses the coefficient of parentage (additive relationship matrix) to link both. The results of the GCA analysis showed that selected female parents were 137, 155, 126, 147, and 159 (Dura), and 101, 113, 109, and 117 for male parents. They are among the parents with highly productive progenies. There are also new potential crossings not currently available on the plantation - for example, the crossing 137 x 101 with the additive genetic value of 35.37
Discrete Mathematical Model of Fast Food Consumption: Control Approach
Full text linkWe investigate a discrete-time model, PLSCQ, to describe interactions among fast food consumer categories, among five population categories: potential consumers (P), moderate consumers (L), excessive consumers (S), obese individuals (C), and individuals who have ceased fast food consumption (Q). We seek for an optimal strategy that minimizes the excessive consumer and obese populations while maximizing the number of individuals who stop or recover. We incorporate three control measures, representing media and education for potential consumers, healthy eating campaigns for excessive consumers, and treatment for obese patients. Employing the discrete-time Pontryagin maximum principle, we derive optimal controls and numerically solve the system in Matlab, verifying the strategy’s effectiveness through simulation results
Does Achievement Motivation Cause Rowers to Burnout?
Full text linkIn rowing, athletes face high pressure due to intensive training, intense competition, and expectations from coaches and the environment. Achievement motivation is a significant factor in achieving optimal performance, but excessive pressure can increase the risk of burnout. In the field, many athletes experience physical and emotional exhaustion due to the drive to achieve without good stress management. This study aims to understand the role of achievement motivation, which is generally considered positive but also has the potential to trigger burnout. The method used is quantitative descriptive with an ex-post facto approach, involving active rowing athletes in Bandung City. The research instrument was a closed questionnaire with a scale of achievement motivation and burnout. The results of the study showed a significant relationship between the two. The higher the motivation to celebrate, the lower the risk of burnout, while low motivation increases the risk. In conclusion, a balanced approach is needed in building athlete motivation, by considering psychological factors and training load management. Coaches and support teams are advised to implement burnout prevention strategies, such as optimal recovery programs, psychological assistance, and creating a training environment that supports the mental well-being of athletes
STRATEGI DALAM MENINGKATKAN LAMA MENGINAP DAN TINGKAT HUNIAN KAMAR HOTEL BINTANG DAN NON BINTANG DI KOTA PADANG
Full text linkPenelitian ini bertujuan untuk menganalisis strategi yang diterapkan oleh hotel bintang dan non-bintang di Kota Padang dalam meningkatkan lama menginap dan tingkat hunian kamar (occupancy rate). Metode yang digunakan adalah pendekatan kualitatif deskriptif dengan teknik analisis SWOT berdasarkan data sekunder seperti situs resmi hotel, ulasan pelanggan, media sosial, dan laporan dari instansi pariwisata setempat. Hasil penelitian menunjukkan bahwa hotel bintang mengandalkan fasilitas lengkap, promosi digital, serta kerja sama dengan Online Travel Agent (OTA) dan sektor MICE, sementara hotel non-bintang lebih menekankan pada harga terjangkau, pelayanan personal, dan kolaborasi dengan komunitas lokal. Analisis SWOT mengungkapkan bahwa kedua jenis hotel memiliki kekuatan dan kelemahan masing-masing, namun memiliki peluang untuk berkembang melalui inovasi strategi pelayanan dan digitalisasi. Penelitian ini memberikan kontribusi dalam memahami dinamika manajemen perhotelan lokal serta memberikan saran strategis untuk meningkatkan daya saing hotel di tengah pertumbuhan sektor pariwisata di Kota Padang
FORMULASI DAN UJI AKTIVITAS ANTIBAKTERI SEDIAAN DEODORAN SPRAY EKSTRAK ETANOL DAUN KUPU-KUPU (Bauhinia purpurea L) TERHADAP Staphylococcus epidermidis DAN Pseudomonas aeruginosa
Full text linkBody odor affects a person's social relationships, unpleasant odors are caused by bacteria that appear on parts of the body that are from sweat. One of the cosmetic products that is believed to prevent body odor is deodorant. Deodorant spray has more hygiene because it is used without direct contact with the skin. An important component in deodorant sprays formulation is antimicrobial agents. Long-term use of synthetic antimicrobials can lead to resistance, so it must to use natural antimicrobials. Butterfly leaves (Bauhinia purpurea L) can be a natural antimicrobial agent, because contain secondary metabolites such as flavonoids, phenols, alkaloids and saponins that can inhibit bacterial growth. This research began with phytochemical screening, making deodorant spray F0 (without extract), F1 (10% ), F2 (15% t), and F3 (20%) extract, evaluation and testing of antibacterial activity against Staphylococcus epidermidis dan Pseudomonas aeruginosa. The data analyzed with SPSS using One Way ANNOVA method. The results of this study showed that the pH value decrease along with the increase in the concentration of the extract in the preparation, but it was still within the normal pH range of 4.5-6.5. The results of the irritation test did not show an irritation and the preparation was preferred by the panelists. The antibacterial activity of deodorant spray against both bacteria has a strong inhibitory power, there are F0 (0 mm), F1 (12.92 mm), F2 (13.82 mm), and F3 (16.85 mm) against Staphylococcus epidermidis, and F0 (0 mm), F1 (12.57 mm), F2 (13.47 mm), and F3 (15.32 mm). Bau badan mempengaruhi hubungan sosial seseorang, aroma yang tidak sedap disebabkan oleh bakteri yang muncul pada bagian tubuh yang lembab akibat keringat. Salah satu produk kosmetik yang dipercaya dapat mengatasi bau badan adalah deodoran. Deodoran bentuk spray memiliki higienitas yang lebih terjaga karena penggunaan yang tidak berkontak langsung dengan kulit. Komponen penting dalam formulasi deodoran spray adalah zat antimikroba. Penggunaan antimikroba sintetik jangka panjang dapat menyebabkan resistensi, sehingga perlu digunakan antimikroba alami. Daun kupu-kupu (Bauhinia purpurea L) dapat menjadi agen antimikroba alami, karena memiliki kandungan metabolit sekunder seperti flavonoid, fenol, alkaloid dan saponin yang dapat menghambat pertumbuhan bakteri. Penelitian ini diawali dengan skrining fitokimia, pembuatan deodoran spray F0 (tanpa ekstrak), F1 (ekstrak 10%), F2 (ekstrak 15%), dan F3(ekstrak 20%), evaluasi sediaan serta pengujian aktivitas antibakteri terhadap Staphylococcus epidermidis dan Pseudomonas aeruginosa. Data yang diperoleh dianalisis menggunakan SPSS dengan metode One Way ANNOVA. Hasil penelitian ini menunjukkan bahwa nilai pH terus menurun seiring dengan meningkatnya konsentrasi ekstrak pada sediaan, namun masih dalam rentang pH normal kulit yaitu 4,5-6,5. Hasil uji iritasi tidak menunjukkan reaksi iritasi dan sediaan disukai panelis. Aktivitas antibakteri sediaan deodoran spray terhadap kedua bakteri memiliki daya hambat yang dikategorikan kuat, yaitu F0 (0 mm), F1 (12,92 mm), F2 (13,82 mm), dan F3 (16,85 mm) terhadap Staphylococcus epidermidis, dan F0 (0 mm), F1 (12,57 mm), F2 (13,47 mm), dan F3 (15,32 mm)