Journal Widya Mandala Catholic University Surabaya / Jurnal Universitas Katolik Widya Mandala Surabaya
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TESTING THE MARKET EFFICIENCY WHEN INTEREST RATES CHANGE: CASE IN INDONESIA
Get PDFUntil the end of September 2023, the interest rate policy in the Republic of Indonesia shifted from 3.50% to 5.75%. The objective of this study is to examine whether changes in interest rates have an impact on the market efficiency in Indonesia. The daily market returns of Indonesia Stock Exchange (IDX) indices from January 3rd, 2022, until October 9th, 2023 are employed. To examine the market efficiency in weak form, this study conducts the normality test by the Kolmogorov-Smirnov test, the unit root problem test by Augmented Dickey-Fuller test, and the variance ratio test. This study finds that most market indices experienced a decline in returns and were less volatile when interest rates shifted to higher levels. This study also finds that most market indices tend to remain efficient in weak form at both low and high interest rates. The finding implies that those indices tend not to be influenced by policy changes in interest rates. However, the findings also show that several market indices experience changes in conditions when interest rates shift. As the studies on the relationship between changes in interest rates and market efficiency are scarce, the novelty of this study is the use of event windows to get specific impact of changes in interest rates on market efficiency
PEMANFAATAN LIDAH BUAYA SEBAGAI EDIBLE COATING DALAM MENINGKATKAN DAYA SIMPAN BUAH
Get PDFMakanan dapat dengan mudah rusak oleh kontaminasi mikroba, kimia, ataupun fisik. Pada buah, kerusakan dapat disebabkan oleh uap air yang keluar dari buah ke lingkungan. Setiap kerusakan yang terjadi dapat memperpendek umur simpan buah. Untuk mengatasi masalah tersebut, diperlukan kemasan yang dapat menghambat perpindahan massa dari buah ke lingkungan yang bersifat biodegradable, sehingga dapat terurai secara hayati dan tidak mencemari lingkungan. Tujuan dari mini review ini adalah mengulas pemanfaatan lidah buaya sebagai edible coating dalam meningkatkan daya simpan buah. Berdasarkan referensi yang didapat, edible coating lidah buaya dapat menjadi penghalang perpindahan uap air, antara lain pada buah pepaya, jeruk, berry, dan tomat dengan atmosfer disekitarnya, memperlambat laju transpirasi, respirasi, dan proses oksidasi. Pemanfaatan edible coating lidah buaya dapat memperpanjang umur simpan dan mempertahankan kualitas beberapa buah
The perception of students towards ChatGPT in the University of Bengkulu: A descriptive study
Get PDFThe rapid advancement of AI technologies, particularly ChatGPT, is reshaping the educational landscape. Understanding how students perceive these technologies is crucial for their effective integration into academic environments. This study aims to investigate students' perceptions of ChatGPT's role in supporting academic tasks, such as learning, research, and assignments at the University of Bengkulu. A descriptive survey design was employed, utilizing structured questionnaires based on the Technology Acceptance Model (TAM). Responses from 75 students across various faculties were analyzed using descriptive statistics and ANOVA to explore perceptions regarding ChatGPT’s usefulness, ease of use, and ethical considerations. The results indicate that students view ChatGPT as moderately useful, particularly for saving time on assignments and research tasks. However, there are ethical concerns, notably about plagiarism, and a demand for better training on the ethical use of AI. ChatGPT is perceived as a valuable tool in enhancing academic efficiency, but there is a need for comprehensive training to address ethical challenges in its use
Pengaruh Penyuluhan Kesehatan Terhadap Tingkat Pengetahuan (Tahu) Remaja Tentang Penyakit Menular Seksual (PMS)
Get PDFPenyuluhan kesehatan adalah kegiatan penyampaian informasi yang digunakan untuk menambah pengetahuan melalui teknik belajar sehingga dapat mengubah perilaku individu, kelompok atau masyarakat. Fenomena yang terjadi di SMA Negeri Umbulsari Jember yakni beberapa remaja tidak dapat menjawab pertanyaan tentang penyakit menular seksual (PMS) saat dilakukan wawancara. Tujuan penelitian ini adalah mengidentifikasi pengaruh penyuluhan kesehatan terhadap tingkat pengetahuan (tahu) remaja tentang penyakit menular seksual di SMA Negeri Umbulsari Jember. Variabel penelitian adalah tingkat pengetahuan. Desain penelitian yang digunakan adalah pra exsperimental design dengan rancangan One Group Pra Test Post Test Design dan menggunakan teknik simple random sampling sebanyak 88 responden. Hasil penelitian didapatkan bahwa tingkat pengetahuan responden sebelum dilakukan penyuluhan lebih dari 50% (51,14%) responden memiliki tingkat pengetahuan kurang. Tingkat pengetahuan sesudah dilakukan penyuluhan mayoritas 94,32% responden memiliki tingkat pengetahuan baik. Hasil uji Wilcoxon dengan tingkat signifikan α = 0,05 didapatkan hasil P = 0,000, harga p < α maka ada pengaruh penyuluhan kesehatan terhadap tingkat pengetahuan (tahu) remaja tentang PMS. Kegiatan penyuluhan menggunakan media audiovisual dapat mengubah tingkat pengetahuan remaja
KARAKTER MUTU DAN ORGANOLEPTIK NUGGET IKAN PATIN (Pangasius sp.) DENGAN SUBSTITUSI JAMUR TIRAM PUTIH (Pleurotus florida)
Get PDFABSTRACTCatfish (Pangasius sp.) is very good for diversifying food products such as fish nuggets. Animal food products have a low fiber content. Vegetables high in fiber such as white oyster mushrooms can be substituted for fish nuggets. This study aims to optimize quality characteristics, organoleptic values and determine the Nutritional Recommended Dietary Allowance (RDA) produced from catfish (Pangasius sp.) nuggets with white oyster mushroom (Pleurotus florida) substitution. This study used a Completely Randomized Design (CRD). The treatment in this study was the substitution of white oyster mushrooms with a percentage of 0%, 15%, 30% and 45%. The results showed that there were significant differences (p<0,05) between treatments. Catfish nuggets with 15% white oyster mushroom substitution were the best treatment by fulfilling SNI 01-7758-2013 regarding fish nugget standards
Hubungan Stres Dengan Tekanan Darah Pada Lansia
Get PDFAge-related increases in blood pressure are normal, but persistently high blood pressure can harm the heart, blood vessels, and other organs. Stress triggers hypertension by activating the sympathetic nervous system, causing blood pressure to increase erratically. Correlational analytic with cross sectional approach was used as the design of this research. The independent variable of this study is stress while the dependent variable is blood pressure. The population in this study were all the elderly at Griya Wherda Jambangan Surabaya. The sampling technique used was purposive sampling so that 30 elderly people were selected as respondents. The stress measuring tool used the Perceived Stress Scale (PSS-10) and the respondent's blood pressure measurement used sphygmomanometer. The results of the Pearson correlation test between stress and systolic blood pressure in the elderly obtained a value of r = 0.036, p = 0.851 while stress and diastolic blood pressure in the elderly obtained a value of r = 0.131, p = 0.489. These results prove that there is no relationship between stress and blood pressure in the elderly. Increased blood pressure is not only caused by stress but there are other factors that also affect both internal and external factors of the elderly
PARENTING PATTERNS AND STUNTING EVENT RATE IN RANDUAGUNG VILLAGE, KEBOMAS DISTRICT, GRESIK REGENCY
Get PDFBackground: The high number of stunting cases in Randuagung Village, Kebomas District in Gresik Regency requires a case analysis to determine the risk factors for stunting, as well as the relationship between parenting and the risk of stunting in Randuagung Village in an effort to properly overcome this stunting cases.Purpose: The purpose of this study was to analyze the association between parenting in children and the incidence of stunting in Randuagung Village, Kebomas District in Gresik Regency.Method: This research is an analytical study with a case control research design which is a form of observational study that has the aim of analyzing the association between the incidence of stunting (dependent variable) and the type of parenting (independent variable) in Randuagung Village, Kebomas District in Gresik Regency.Result: The results of a study of 85 respondents conducted in April 2022 concluded that there was an association between parenting in children and the incidence of stunting in Randuagung Village, Kebomas District, Gresik Regency. Conclusion: There is an association between parenting in children and the incidence of stunting in Randuagung Village, Kebomas District, Gresik Regency
SELF-MANAGEMENT DIET AND RANDOM PLASMA GLUCOSE CONTROL OF PATIENT WITH TYPE 2 DIABETES MELLITUS AT PUSKESMAS ALUN-ALUN GRESIK
Get PDFBackground: Diabetes Mellitus (DM) is a non-communicable metabolic disease characterized by the pancreas not being able to produce insulin and a decrease in insulin receptor sensitivity. Epidemiological data show the prevalence of type 2 diabetes mellitus is high in Indonesia and estimated to increase by more than 2.5 times in 2030 compared to 2020. Several factors play an important role in the development and management of diabetes cases, including the management of a good independent diet. People with DM who do not pay attention to their diet can trigger complications and disability. Objective: This study aims to determine the correlation between independent diet management and blood sugar control in patients with type 2 diabetes mellitus. Methods: This study used an observational analytic method with a cross sectional design. The sampling technique was consecutive sampling. Self-management assessment of diet used the Self-Management Diabetic Diet Questionnaire (SMBDQ) which has been adjusted and tested for validity and reliability. Blood sugar measured using a glucometer. Data processing was conducted using Kendall's tau C with a significance level of 95% (α=0.05). Results: There was 79 respondents. There was a correlation with a significance value (P= 0.002) with a low correlation (τ=0.255) between independent diet management and current blood sugar control in patients with type 2 diabetes mellitus. Conclusion: Independent diet management has a significant correlation with blood sugar control in patients type 2 diabetes mellitus. Keywords: Diabetes mellitus, independent diet management, Random Plasma Glucose, Self-Management Diabetic Diet Questionnaire
Integration of Rough Cut Capacity Planning (RCCP) and Capacity Constraint Resources (CCR) to Minimize the Risk of Uncertainty in Fulfilling Production Material Supply
Get PDFManaging the production capability of a company is undoubtedly the main concentration in the manufacturing industry. Industries must consider the materials and resources supplied for making a master production schedule. The lack of material supply from a supplier results in the inefficiency of the production process. The supply disruption of raw materials results in problems for the rest of the stages in the production process. As a result, companies experience difficulties in meeting the predetermined target. This research used an integration of RCCP and CCR to solve the problem. Optimization of CCR implies the TOC (theory of constraint) principle by reducing the percentage of overload until reaching a balanced (optimal) condition. This research aims to balance and optimize the ongoing production process. It took place in a manufacturing company that produces building materials serving the market in Indonesia. The results show that during the observation period, the current production system has experienced system overload for about 70% of the production period. The results of the RCCP analysis provide recommendations for improving the master production schedule to increase the effectiveness of the production system
DISRUPSI SEBAGAI PROBLEM SUBJEK, PERSONA, DAN KOMUNITAS
Get PDFAbstrak Manusia kini hidup dalam era disrupsi yang mengguncang seluruh sendi kehidupannya. Kemajuan teknologi informasi menjadi salah satu faktor penentu disrupsi. Di satu sisi, guncangan itu menantang manusia untuk beradaptasi secara cepat dengan segala perubahan yang ada. Di sisi lain, disrupsi ini menggerus, meninggalkan, menyingkirkan, dan mengabaikan manusia-manusia yang dianggap tak mumpuni mengikuti arus perubahan zaman. Disrupsi ini bisa menjadi locus philosophicus untuk memperdalam makna hakiki kemanusiaan. Pokok-pokok pemikiran personalistik Karol Wojtyla (1920-2005), seorang filsuf, teolog, dan paus dari Polandia, dapat dijadikan pisau analisis untuk membedah dan menjawab tantangan disrupsi. Beranjak dari analisis atas tindakan, Wojtyla melihat bahwa teknologi beserta dampaknya yang luas bagi kehidupan manusia tak pernah boleh diabaikan, disingkirkan atau diperalat. Manusia sebagai persona adalah subjek dari tindakan. Melalui tindakannya, ia mengejawantahkan ke-persona-annya sebagai pribadi dan bagian dari komunitas manusia yang berdinamika mencapai tujuan-tujuan hidup pribadi dan bersama. Dalam refleksinya itu, ia mengungkapkan bahwa partisipasi adalah kunci bagi persona mewujudkan komunitas yang manusiawi, bebas dari berbagai bentuk alienasi, bahkan alienasi yang menjauhkan manusia dari dirinya sendiri, dari komunitasnya, dan dari berbagai arus perubahan zaman. Kata kunci: Personalisme, Praxis, Partisipasi, Alienasi, Solidaritas, Komunitas Abstract Humans nowadays live in an era of disruption that shakes all aspects of their lives. Advances in information technology is one of the determining factors for disruption. On the one hand, these shocks challenge humans to adapt quickly and unconditionally to all the changes that exist. On the other hand, this disruption erodes, leaves, removes, and ignores human beings who are considered incapable of keeping up with the changing times. This disruption can become a locus philosophicus to deepen the true meaning of humanity. The personalistic principles of Karol Wojtyla (1920-2005), a philosopher, theologian, and pope from Poland, can be used as an analytical method to dissect and answer the challenges of disruption. Moving on from an analysis of actions, Wojtyla sees that technology and its broad impact on human life must never be ignored, pushed aside, or used. Man as a person is the subject of action. Through his actions, he manifests his personality as a person and part of a dynamic human community to achieve personal and collective life goals. In his reflections, he revealed that participation is the key for the person to create a humane community, free from various forms of alienation, even alienation that distances humans from themselves, from their community, and from various currents of changing times. Keywords: Personalism, Praxis, Participation, Alienation, Solidarity, Communit