eJournal Unika Atma Jaya (Universitas Katolik Indonesia)
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PENGARUH PENGETAHUAN, RISK-RETURN, DAN BANDWAGON EFFECT MEMPENGARUHI MINAT INVESTASI CRYPTOCURRENCY PADA MAHASISWA
No full textThis research examined the influence of knowledge, risk-return, and bandwagon effect on accounting students' cryptocurrency investment interest. The population in this study were active accounting students at Jenderal Soedirman University. The sampling method was purposive sampling. From 277 samples that met the criteria. 122 questionnaires can be used in the next research stage. The results of the study show that investment interest by Generation Z represented by accounting students who have taken financial technology courses is influenced by knowledge, risk-return, and the bandwagon effect. This finding provides evidence that learning about cryptocurrencies makes the younger generation not only have sufficient knowledge but also understand the risk-return of crypto investment instruments which are generally considered to be very uncertain in their performance. Likewise, the bandwagon effect is indeed a common thing among Generation Z to be interested in cryptocurrencies. Although the research results cannot be generalized, it can be concluded that generation Z who have received education about cryptocurrencies already understand the risks behind their investment choices
Deep Learning-Based Brain Tumor Classification Using Convolutional Neural Network
Full text linkAn essential noninvasive medical diagnostic technique is magnetic resonance imaging (MRI), which is particularly useful for identifying brain cancers. While earlier algorithms proved effective on smaller MRI datasets, their performance suffered on bigger datasets. This study addresses the need for a swift and reliable brain tumor classification system capable of sustaining optimal performance across comprehensive MRI datasets. The convolutional neural network is implemented using the Keras library, incorporating the ResNet50 architecture as a pre-trained model. The ResNet50 model is fine-tuned for the specific brain tumor classification task, with a Global Average Pooling layer, dropout, and a final dense layer with softmax activation. Data augmentation techniques are employed to enhance the model’s robustness, including rotation, width and height shifts, and horizontal flips. The training process involves optimizing the model using the Adam optimizer with a learning rate of 0.0001. Early stopping, learning rate reduction on plateau, and model checkpointing are implemented as callbacks to ensure efficient training and prevent overfitting. The proposed model achieves a remarkable accuracy of 99.28 percent after 15 epochs. The classification task involves distinguishing among four classes: glioma, meningioma, pituitary, and no tumor
Skrining Fitokimia, Kapasitas Antioksidan, dan Efek Sitotoksik Ekstrak Metanol Daun Kari (Murraya koenigii L.)
No full textPendahuluan: Kanker merupakan kelainan genetik dan metabolik yang menjadi tantangan yang besar pada abad ke-21 ini. Dewasa ini terbukti bahwa Reactive Oxygen Species (ROS) dapat memicu karsinogenesis melalui beberapa jalur ongkogenik atau mutasi ongkogenik pada DNA. Oleh sebab itu diperlukan antioksidan yang dapat meregulasi jumlah ROS dalam sel kanker. Selain itu, hampir semua aktivitas fitokimia bekerja dalam beberapa jalur pensinyalan sel dan dapat berpotensi menghambat progresi keganasan. Salah satu fitokimia yang dapat memicu apoptosis adalah alkaloid karbazol yang terdapat pada daun kari (Murraya koenigii L.). Penelitian ini dilakukan untuk mengetahui kandungan fitokimia, kapasitas antioksidan, dan sitotoksisitas ekstrak metanol daun kari.
Metode: Penelitian ini menggunakan ekstrak metanol daun kari yang diperoleh dengan metode perkolasi. Ekstrak kemudian dilakukan pengujian secara invitro untuk mengetahui kandungan fitokimia dan kapasitas antioksidan dengan metode 3-ethylbenzothiazoline-6-sulfonic acid (ABTS). Selain itu, dilakukan juga pengujian dengan bioassay pada uji sitotoksisitas metode Brine Shrimp Lethality Test (BSLT).
Hasil: Ekstrak metanol daun kari mengandung alkaloid, antosianin, koumarin, flavonoid, kuinon, saponin, steroid, tanin, dan terpenoid, dengan kapasitas antioksidan yang dinyatakan dalam IC50 sebesar 30,70 μg/mL, sedikit lebih lemah dibandingkan Trolox sebesar 16,46 µg/mL. Sedangkan uji sitotoksisitas pada ekstrak metanol daun kari didapatkan LC50 sebesar 235,34 µg/mL.
Simpulan: Ekstrak metanol daun kari memiliki beragam fitokimia dengan aktivitas antioksidan yang sangat kuat (> 150 µg/mL) dan tergolong toksik (31 – 1000 µg/mL) sehingga bersifat sitotoksik terhadap sel yang sedang membelah sehingga memiliki potensi sebagai antikanker.Pendahuluan: Kanker merupakan kelainan genetik dan metabolik yang menjadi tantangan yang besar pada abad ke-21 ini. Dewasa ini terbukti bahwa ROS dapat memicu karsinogenesis melalui beberapa jalur ongkogenik atau mutasi ongkogenik pada DNA. Oleh sebab itu diperlukan antioksidan yang dapat meregulasi jumlah ROS dalam sel kanker. Selain itu hampir semua aktivitas fitokimia bekerja dalam beberapa jalur pensinyalan sel dan dapat memicu berhentinya siklus sel dan/atau induksi deferensiasi dan apotosis sehingga berpotensi menghambat progresi keganasan. Salah satu fitokimia yang dapat memicu apoptosis adalah alkaloid karbazol yang terdapat pada daun kari (Murraya koenigii L.). Penelitian ini dilakukan untuk mengetahui kandungan fitokimia, kapasitas antioksidan, dan sitotoksisitas ekstrak metanol daun kari.
Metode: Penelitian ini menggunakan ekstrak metanol daun kari yang diperoleh dengan metode perkolasi. Ekstrak kemudian dilakukan pengujian secara invitro untuk mengetahui kandungan fitokimia dan kapasitas antioksidan dengan metode ABTS. Selain itu, dilakukan juga pengujian dengan bioassay pada uji sitotoksisitas metode BSLT.
Hasil: Ekstrak metanol daun kari mengandung alkaloid, antosianin, koumarin, flavonoid, kuinon, saponin, steroid, tanin, dan terpenoid, dengan kapasitas antioksidan yang dinyatakan dalam IC50 sebesar 30,70 μg/mL, sedikit lebih lemah dibandingkan Trolox sebesar 16,46 µg/mL. Sedangkan uji sitotoksisitas pada ekstrak metanol daun kari didapatkan LC50 sebesar 235,34 µg/mL.
Simpulan: Ekstrak metanol daun kari memiliki beragam fitokimia dengan aktivitas antioksidan yang sangat kuat (> 150 µg/mL) dan tergolong toksik (31 – 1000 µg/mL) sehingga bersifat antimitosis
Analisis Penggunaan Earbuds atau Earphone di Telinga Saat Berkendara Roda Dua
Full text linkUsing earphones or earbuds while driving positively and negatively impacts the driver. Congestion is a condition that causes motorists to use these hearing aids. However, the use of hearing aids while driving can threaten the safety of drivers and other drivers. The Bumi Serpong Damai (BSD) area is an area with many motorcyclists, so it can be a reference for motorists to pay attention to the dangers of using earphones while driving. Using earphones while driving, motorcyclists often do not focus on road conditions. Moreover, motorists can be indifferent to signs and other motorists. Therefore, a study was conducted on the use of hearing aids by two-wheeled riders in the BSD area to reveal the underlying problems associated with the use of hearing aids when driving. This study was conducted through the distribution of questionnaires and data processing using the chi-square test and logistic regression. This study aimed to determine motorcyclists’ level of awareness about the dangers of using earphones while driving. The result showed that a relationship exists between the frequency of use and driving comfort; the dominant factor affected by using hearing aids while driving is a reduction in emotions due to traffic jams. This study recommends that the government address traffic congestion due to its strong impact on driver emotions. For motorcyclists, it is advised to keep the earphone volume low to maintain focus on traffic signs and surrounding sounds
PELUANG BISNIS PENGEMBANGAN USAHA KATERING MENJADI “DAPUR BERSAMA” BAGI PENGHUNI KOMPLEK PERUMAHAN
Full text linkThe restructuring of the Makan Nyoo Catering business is an urgent need to change the image of the business with traditional management, while also being a rebranding step that opens up significant growth opportunities. Professional business management in various management fields, by utilizing information technology and digitalization, will encourage the business's growth into a business like a soup kitchen for customers, by providing daily side dishes with menus that still prioritize clean, healthy, quality food containing vitamins and daily nutrition for customers. For the owner and employees, this business can be a source of sufficient income in the long term
Relationship between Knowledge and Attitude toward BSE Behavior for Early Breast Cancer Detection among Atma Jaya Hospital Nurses
Full text linkIntroduction : Breast cancer is a frequently occurring type of cancer in Indonesia, with symptoms of rapid and invasive growth of abnormal cells. Deaths due to this cancer can be reduced by avoiding risk factors and early detection, such as through breast self-examination (BSE). Assessing knowledge, attitudes, and behavior regarding BSE is important for early detection, especially for nurses as health workers. This study assessed the relationship between knowledge and attitudes towards BSE behavior among Atma Jaya Hospital nurses.
Methods: This is an analytical observational study employing a cross-sectional design, involving 105 samples selected through purposive sampling according to established inclusion and exclusion criteria. The variables in this study include knowledge, attitude, and behavior regarding breast self-examination (BSE). Data were collected through the distribution of questionnaires to respondents and will be statistically analyzed using the Chi-Square test (x2) with a significance level (a) = 5%, and the analysis will be conducted using STATA software.
Results: Based on the data analysis, there is no correlation between knowledge and attitude toward the practice of breast self-examination (BSE), with p-values of 0.623 and 0.994.
Conclusion: There is no significant relationship between Knowledge and Attitude towards BSE Behavior.
Keywords: BSE Attitude - BSE Behavior - BSE Knowledg
A COMPARATIVE ANALYSIS OF POETRY TRANSLATION USING THREE AI TOOLS
Full text linkAI tools today enable faster and easier translation. However, because some AI technologies are not designed specifically for translation tasks, especially literary translation, such as poetry translation, they may not always provide appropriate translations. AI systems may not translate well if they are not properly prompted. This study analyses the translation of Indonesian poetry 'Hujan bulan Juni' by a renowned Indonesian poet, namely Sapardi Djoko Damono, into English by three AI tools: QuillBot, Google Translate, and Chat GPT. The purpose of this study is to find out the translation differences in terms of structure and diction and to discover which AI tools offer the best translation that can keep the aesthetics of the poetry in the target language. The data is the poetry titled ’Hujan Bulan Juni’ which is downloaded from the internet. This poem consists of twelve lines, forming six complete sentences. The poetry is then submitted to the three AI tools to be translated into English. The three translations were then compared in terms of the word choice and the structures used in the target text translations. The title 'Hujan bulan Juni' is translated as 'June Rain' by QuillBot, ‘the rain of June' by Google Translate, and 'the rain in June' by ChatGPT. These samples show that each tool has a certain preference and technique when structuring the translations even though the meaning might be similar. Results show that in terms of translating poetry, QuillBot gives the most natural translation, followed by ChatGPT and finally Google Translate, particularly in the choice of words and structure. For instance, QuillBot translates rintik rindu’ into ‘drops of longing,’ while GT and ChatGPT render it just as ‘longing.’ QuillBot maintains its faithfulness to the source text, making it more natural in the target text. However, the AI translators cannot fully create an aesthetic translation of poetry, as the target language translation still feels like a word-for-word translation. GT, for example, translates ‘arif’ and ‘bijak’ as ‘wise’, which does not convey the subtle difference of the source texts. The findings of this study imply that AI can be a valuable tool in improving productivity in translating poetry or other kinds of literary works. The findings also suggest that AI-generated machine translations offer significant potential for literary translation, yet human touch is still needed to create more aesthetic target language translation. Therefore, a hybrid approach that combines AI efficiency and human expertise is still needed in practicing, studying or teachin
INTERAKSI ELEMEN MULTIMODAL DALAM TANDA DAN PAPAN NAMA SEBAGAI REPRESENTASI BUDAYA DI LOKAWISATA BATURRADEN
Full text linkPenelitian ini mengkaji interaksi elemen visual dan verbal dalam mengonstruksi makna pada tanda dan papan nama di kawasan Lokawisata Baturraden, sebuah destinasi wisata populer di Jawa Tengah yang menghadapi tantangan komunikasi lintas budaya. Di era globalisasi, kebutuhan akan komunikasi visual yang efektif menjadi krusial, terutama di destinasi wisata yang menerima pengunjung dari beragam latar belakang budaya. Lokawisata Baturraden, dengan keunikan atraksi wisata dan nilai budaya lokalnya, menjadi lokasi ideal untuk mengkaji kompleksitas komunikasi multimodal dalam konteks pariwisata. Penelitian ini bertujuan untuk: (1) menganalisis struktur semantik multimodal pada tanda dan papan nama; (2) mengeksplorasi efektivitas komunikasi lintas budaya yang difasilitasi elemen tersebut; dan (3) mengidentifikasi bagaimana nilai budaya lokal direpresentasikan dalam elemen visual di kawasan wisata. Penelitian ini menggunakan pendekatan kualitatif dengan metode semiotika multimodal, yang memungkinkan analisis mendalam terhadap berbagai aspek komunikasi visual. Pengumpulan data dilakukan melalui observasi langsung dan dokumentasi visual berupa foto dan video terhadap 50 sampel tanda dan papan nama yang tersebar di area strategis. Analisis data menggunakan kerangka teori multimodal Halliday dan semiotika budaya Lotman, dengan fokus pada interaksi berbagai mode komunikasi—seperti teks, gambar, warna, dan tata letak—serta konteks sosial-budaya yang melingkupinya. Proses analisis melibatkan identifikasi elemen visual dan verbal, analisis hubungan antarmodal, dan interpretasi makna dalam konteks budaya lokal. Hasil penelitian menunjukkan adanya pola semantik multimodal yang khas dalam desain tanda dan papan nama di Baturraden, ditandai dengan kombinasi bahasa lokal dan universal. Strategi komunikasi visual yang diterapkan terbukti cukup efektif menjembatani pengunjung lintas budaya, meski masih ditemukan beberapa kendala pemahaman pada simbol tertentu. Lebih lanjut, nilai-nilai budaya lokal berhasil diintegrasikan secara harmonis dalam desain komunikasi visual melalui penggunaan motif, warna, dan simbol tradisional. Penelitian ini memberikan kontribusi teoretis dengan memperkaya kajian semantik multimodal dalam konteks pariwisata, serta kontribusi praktis berupa temuan yang dapat menjadi panduan bagi pengelola destinasi wisata dalam merancang komunikasi visual yang inklusif dan bermakna
DISPARITY OF THE ENGLISH FORMAL AND INFORMAL LANGUAGE ON THE STUDENTS’ SPOKEN TEXT : A SOCIOPRAGMATIC PERCEPTIONS
Full text linkRecent phenomena have been identified among students at the university level, such as the tendency to use an informal language style, which has become a normal and common one, even though the context situation requires a very formal context. The students prefer to use a casual and informal style over a formal one. This is, of course, not appropriate since in formal contexts and situations, a formal language including nonverbal elements is used.
The study analyzes the disparity in the use of formal and informal English language, including the nonverbal elements used by the students of the English department in their fourth semester of the academic year 2024-2025 with the number of seventy seven students as the subjects of the study. The objectives of this study are to describe the perceived characteristics of English formal language used by the students in their formal spoken language, as well as the nonverbal elements from the point of Sociopragmatic views, thus explaining the factors of the difficulties the students face. Along with the descriptions of the formality, an implementation of some strategies through theoretical concepts on Pragmatics and Sociolinguistics is also conducted.
The method used in this study is a descriptive qualitative design with some process phases applied, starting with conducting a direct observation in the classroom during the lecture of Advanced Interpretation taking place. Then it is also followed by a deep interview with the students and some lecturers in order to gain some preliminary data about the use of English formal language expressions. The data sources are the classroom activities, especially classroom presentations, discussions, and Q & A sessions during the lecture. The data are all the verbal and nonverbal English language showing formality. After that, there is an exposure to some theoretical concepts on Pragmatics and Sociolinguistics. The strategic explanations will be introduced to the students so that they can identify the most challenging factors that make them feel discomfort and unwilling to use the formal English language and nonverbal elements in very formal contexts and situations. By conducting the study there are some significant contributions such as the use of English formal expressions and dictions is used, the nonverbal elements such as the good tone of speaking, intonation, pause, eye contact, body gestures are also used, thus they contribute to enhance students' ability to use the formal English language and nonverbal elements in a formal situation.  
NAMING F&B BUSINESS IN MARGONDA DEPOK: WORD FORMATION STUDY
Full text linkThe linguistic landscape of public spaces in Depok, particularly along Margonda Street as the central of Depok city, reflects considerable language diversity. Language, functioning as signage, is utilized across various public domains, including streets, open areas, public facilities, and commercial establishments such as coffee shops and food courts. This study specifically investigates the naming practices of food and beverage (F&B) businesses in the Margonda area of Depok. The primary aim is to analyze the linguistic units and word-formation processes employed in these commercial names. One illustrative example is the brand name Hypnotea, which is formed through blending, combining the words hypnotize and tea. This process demonstrates how morphological strategies contribute to the creation of concise and memorable brand identities. This research adopts a qualitative descriptive approach, employing observational methods to collect data without direct interference from the researchers. A total of 10 F&B brand names were examined, revealing two principal types of linguistic units: single words and phrases. The analysis identified several word-formation processes, including blending, borrowing, clipping, onomatopoeia, and reduplication. Among these, reduplication emerged as the most frequently occurring process, accounting for approximately 40% of the data. The findings suggest that effective brand naming strategies tend to use formal and timeless lexical choices, which are more likely to achieve long-term recognition and appeal. In contrast, names based on informal language, slang, or gimmicks may lack lasting impact. The study concludes by recommending future research on other sectors within the F&B industry, such as noodle brands, to further enhance the understanding of linguistic practices in commercial naming within urban Indonesian contexts