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This paper examines portfolio optimization using both the Markowitz Model (MM) and the Index Model (IM), with a focus on the S&P 500 Index and 21 of its OEX constituent stocks over a 20-year sample period. Daily prices were converted into monthly returns, resulting in over 200 months of data. Using...

With heavy research and study pressure, the postgraduate is likely to get depression. This paper presents the survey result of 500 postgraduates who studied in Zhejiang province based on BDI-II(Beck Depression Inventory). Survey result shows the depression ratio of Zhejiang is 15.6%. Further comparisons...

A novel weak capacitance measurement system is proposed to measure the gas-solid two-phase flows. The system is mainly consist of capacitance sensor, Micro-programmed Control Unit (MCU), Direct Digital Synthesizer (DDS), operational amplifier, analogue multiplier and low-pass filter. Since the stray...

The regional power system of the Sverdlovsk region with an annual electricity consumption of over 40 billion kWh per year is one of the largest in Russia. There are powerful mining, metallurgical and machine-building enterprises on the territory of the region which require large volumes of cheap thermal...

Circular economy business model has attracted attention in last decade regarding the increasing of environmental awareness and sustainability. However, the scientific and research content of the concept is so shallow and disorganized that it is still a collection of vague ideas separated from several...

This paper gives a balanced view of the opportunities of robo-advisory platforms to exert financial performance and, ultimately, a potential effect on the economics of a financial gap in the field of personal finance. Though the use of these fintech tools is touted as leading to increased equity in accessing...

This study aims to determine the effect of adding the Silicon Carbide (SiC) to aluminum scrap on impact strength and microstructure using powder metallurgy (sintering) method. The materials used in this research are aluminum scrap and silicon carbide (SiC). There are three variations of the mixture,...

The Island of Wanci consists of unproductive lands whose area continuously increases, and therefore, integrated planning is required. A 4-month soil suitability evaluation for plantation crops was carried out in the District of South Wangi-Wangi using a structured survey method with an inter grid distance...

About 80% of the total amount of waste produced is generally organic waste, which is only seen as residual and has no economic value. Currently, the problem of organic waste is a problem that must be addressed immediately, and Black Soldier Fly is one of the solutions. This study aims to determine the...

The government through the Ministry of Education and Culture (Kemendikbud) has made a decision to suspend teaching and learning activities in schools. The learning process that starts face to face directly in the classroom turns into distance learning /brave. However, the government decided to reopen...

Low Temperature Detection System on cow cement flask base on RTD-coil coupled by transducer 4-WCB has been made. Four kinds of sensor was prepared, that’s are coils from copper material with diameter 1 mm and set number of winding from 200 up to 500. Four-WCB circuit was chosen as transducer to facilitate...

The article is devoted to the study of the functioning of the ethnic press in the multinational Republic of Sakha (Yakutia), in which representatives of more than 130 nationalities live. In particular, on the basis of the concepts “ethnos” and “ethnic journalism” that have developed in modern science,...

The world sees a fall in adolescents’ physical activities, with this also leading to health problems. Physical education needs to change as a result. This paper studies a health-promoting physical education (OHPPE) model which fully develops youth physical literacy. Physical literacy, the motivation,...

Lighting is very important for teaching, learning, and more activities in the classroom. In SMP Firdaus Bandung, there are several classrooms in which the form of lighting is natural lighting. However, the lighting is less effective and does not up to lighting standards. In fact, the purpose of adequate...

There is a Chinese "musical living fossil", "Qujiaying ancient music" in Gu'an County, Langfang City. Qujiaying ancient music has a history of more than 500 years and is an artistic treasure in China's excellent traditional cultural heritage. This paper elaborates Qujiaying ancient music from three aspects...

Salmonella typhimurium, Eschericia coli, Pseudomonas fluorescense, and Aspergillus niger are common contaminants in food. Microbial contamination in food may lead to food spoilage and foodborne diseases. The development of new antimicrobial agent, especially from natural resources is needed to prevent...

The article explores the inevitability of audit digitization in the rapidly evolving technological economy. It examines the integration of artificial intelligence and process automation into auditing activities, enabling the automation of repetitive tasks, enhancing data examination, and improving the...

Social media has become one of the primary sources of data which available for policy analysts and policymakers. As the evidence, active Twitter users are sending 500 million tweets per day containing thoughts, opinions, pictures, and other information. Social media offers new challenges related to how...

An earthquake swarm in January 2021 triggered research related to adjacent geological structures, mainly inferred Menanga fault having predicted in the previous studies. This study is focused on investigating the fault and volcanic -related activity in terms of magnetic field anomalies due to sensitivity...

Manganese oxide (MnOx) thin films were successfully prepared on a glass substrate by thermal oxidation of sputtered manganese (Mn) film in the air. The different oxidation temperatures range of 200 to 500 ℃ were used to evaluate the phase evolution, crystalline behavior, optical and photocatalytic properties...

Manganese oxide (MnOx) thin films were successfully prepared on a glass substrate by thermal oxidation of sputtered manganese (Mn) film in the air. The different oxidation temperatures range of 200 to 500 ℃ were used to evaluate the phase evolution, crystalline behavior, optical and photocatalytic properties...

This research aimed to establish the relationship models between the length and width of Alabio duck (Anas platyrhynchos Borneo) eggs and the weight of eggshells, albumen, and yolk. Data were collected from 500 eggs and were further examined using Pearson’s correlation and regression analysis. The results...

Soil erosion is a very serious ecological problem and remains a highly contentious issue in Nanling National Nature Reserve, China. This paper assessed the spatial relationships between soil erosion risk and the environmental factors affecting soil erosion. Such research is significant for monitoring...

Fengxiang wood-engraving New Year pictures began in the Tang and Song Dynasties and flourished in the Ming and Qing Dynasties. They have a history of more than 500 years. Fengxiang wood-engraving New Year pictures are rooted in the farming culture, and are closely related to the traditional festival...

Nutmeg plant is one of the spice commodities that had been known from the ancient world. In an effort to revive the dignity of spice crops, nutmeg also promise encourage to be developed. This study aims to analyze the effect of cow manure and KCl to change soil properties and growth of nutmeg in inceptisol...

Along with developing the Mobile Learning System, Mobile Learning requires adequate facilities, such as a server as a storage medium and as a provider of an API-based web service, especially when there are more and more Mobile Learning users. And to ensure the quality of the web service, a system test...

This study explains the internal phonological and lexical innovations in Gane language. An internal innovation refers to transformation or difference of a language in aspect of phonology and lexicon which is not shared, especially, with other languages within a language group or family. For this purpose,...

The Er (erbium) ions at energies of 200 - 500 keV and dose of 2×1015 ions/cm2 were implanted into the optical waveguide material SOI (Silicon - on - insulator) at room temperature ( RT ) under the angles of 0°, 45° and 60°, respectively. The range distribution of 200 - 500 keV, 2×1015 ions/cm2 Er ions...

The Indonesian wedding industry is currently a very big business. Every year, more than two million people get married in Indonesia. The average invitation for each wedding party is around 500 people. While the funds needed are around Rp 300 million, almost five times the average annual opinion of Indonesians....

Flow in the wake of a coronary artery stenosis induces a bruit in the 300–1500 Hz range that can be heard at the chest wall. It has been hypothesised that this sound is caused by turbulence-induced shear waves which travel through the soft tissue of the thorax. This contribution describes a computational...

Background: Local pulse wave velocity (c) is widely used as an index of local carotid arterial stiffness. In middle-aged type1 and type2 diabetic patients, arterial stiffness is higher than in healthy people, but much less data are available for young subjects. Our aim was to quantify the changes in...

Muslim growth around the world is perhaps the most striking and Sharia is more popular and becoming the lifestyle of Muslim people today. Developed tourism for Muslim tourists services in hotels, restaurants and travel tours are really potential. The study was conducted to provide the author a better...

This work presents SIGNBRIDGE, a browser executed system for real-time recognition of sign gestures using MediaPipe Holistic landmarks combined with a lightweight ONNXRuntime encoder. The model was prepared using the publicly available iSign CSLRT dataset hosted on Hugging Face, containing roughly 7,050...

Annona muricata (soursop) is a plant belonging to the Annonaceae family. It’s a medicinal herb that’s been used for centuries as a natural cure for a number of diseases. Several investigations in animals showed that the bark and leaves of the plant possessed antihypertensive, vasodilator, anti-spasmodic,...

This exploratory study delves into the critical role of financial literacy in influencing SME performance from a sustainable economic resilience perspective in emerging markets. Drawing on the knowledge-based view (KBV), theory of planned behavior, and resource-based theory, financial literacy is theorized...

We test whether ensemble machine-learning models can pro-duce economically meaningful forecasts for daily S&P 500 returns over January 2000–May 2024 (6,266 trading days; CRSP). Eight technical predictors are engineered to capture momentum and volatility structure. A Random Forest (200 trees) and...

Background: Monitoring Intracranial Pressure (ICP) is key for appropriate clinical treatment of patients with conditions potentially causing raised ICP. The adequacy of using Heart Rate (HR), aortic Blood Pressure (aBP) and carotid Blood Flow (cBF) to estimate ICP magnitude (pulse and mean) and waveform...

SMS Spam is an unsolicited or unwanted text message by a user that is sent to a mobile device. At this time, increasingly criminal acts can annoy recipients by spreading unsolicited or unwanted spam SMS, including promotions, fraud, pornographic messages, and others. Therefore, the classification of...

This research aims to determine the influence of biological Agensia Corynebacterium on growth and yield of paddy crops (Oryza sativa L.) The varieties of Inpari 13 were held in Cianjur regency with a height of 500 m above sea level from January to April in 2015. Environmental Design uses random Group...

Using platelet derived growth factor B chain (PDGF-BB) as the model analyte, a structure-switching hairpin probe based electrochemical biosensing strategy for highly sensitive detection of protein is proposed in this work. Aptamer probe hybridized with the immobilized hairpin structured signal probe...

Digital rock physics combines imaging and numerical techniques to study the mechanical properties of granular materials without extensive physical experiments. This paper introduces a workflow for processing X-Ray Computed Tomography (CT) data and using it in numerical simulations, demonstrated through...

This paper analyzes systemic vulnerabilities in stablecoins through a comparative event study of the May 2022 TerraUSD (UST) collapse and the March 2023 USDC–Silicon Valley Bank (SVB) de-pegging. Peg deviation, trading volume, and volatility measures are combined with DeFi total value locked (TVL) and...

Diversification strategy takes a more important part in business management, with the deepening development of the market economy, most international companies began to use the diversified strategy. According to relevant statistics, more than 94% of the world 500 enterprises implemented diversified business...

Cipangopaludina chinensis which is a kind of benthic invertebrates was taken as experimental invertebrate. In the condition of the Roxithromycin, the activity of APND and GST abstracted from the liver and kidney tissues of Cipangopaludina chinensis to investigate the effect of Roxithromycin on the biochemical...

With the development of the Internet and the increasing maturity of computer programming technology, the use of computer programming combined with mathematical models, which can assess the risk and return of financial markets, thus predicting the future market direction became a popular topic of interest....

In the use of energy, it is necessary to pay attention to the impact on the environment. Environmental impacts due to energy use such as climate change and global warming. It is necessary to develop renewable energy that does not damage the environment and ecosystem. Indonesia itself has many sources...

Slope stability study of Over Burden (OB) dump needs to be carried out for maintaining them at the steepest possible angle without any danger from the stability point of view. One of the most important input parameters for stability analysis is the shear strength i.e., cohesion and angle of internal...

The R-101 reactor is one of the units in the Catalytic Condensation Unit (CCU), XXX Refinery. This reactor functions to reprocess the mixed C4 feed originating from the RCC Complex processing to have a higher selling value such as propylene and LPG. In this reactor, there is a polymerization reaction...

Mastitis is still a serious problem in dairy cows industry because mastitis cause farmers will decrease milk production. This paper described the Calcium Silicate (CaSi) powder application as dairy cow bedding and their impact to dairy cow health. Indirect somatic cell count test (IPB-1 test) has applied...

Obesity leads to an increased risk of dyslipidemia, which is characterized by a decrease in High Density Lipoprotein (HDL) cholesterol levels. HDL is influenced, among other things, by the intake of foods containing fiber such as resistant starch and antioxidants such as flavonoids and vitamin C. Cavendish...