E-Commerce Product Demand Modelling Using Machine Learning Algorithm Case Study of Rice Trading Products in PT XYZ

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E-commerce XYZ is an Indonesian commerce company that have 3 types of products in its B2C business line: trading, consignment, and marketplace. From January 2021 until October 2022, the company’s trading rice category product sales generated a negative profit. Even though for the last several years e-commerce has been focused on growth instead of profitability, the current economic environment is forcing e-commerce companies to focus on profitability as well. For trading products, maximum profit can be achieved in two ways: selling products with a very high margin but with less quantities or selling in large quantities but with a sub-optimal margin. Hence, the company needs to find a demand function model that can be used to generate maximum profit. To find the best model, the researcher first created a baseline model by using median for every product group which is already grouped based on their Unit of Measurement. Next, to find the best model, the researcher will create a demand function using 4 other models. It is found that Gradient Boosted is the best algorithm to model the demand function. Although this model successfully models a demand function for a product category in e-commerce, business context still needs to be added before this model can be implemented in real life as well as finding other features that might affect the demand function.

Social Media and Some Notes When Using

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The world currently exists, moves and develops as a “flat world”, which is both unified, contradictory, cooperative and struggling. Participating in that process is the great role of the mass media, which is now the power of multimedia and, more specifically, social media. Thanks to the exploitation and application of outstanding achievements of information technology, social media exists on digital platforms with many faces. However, besides the outstanding advantages compared to other types of multimedia communication, social media also has disadvantages that users need to be aware of when using. The article is going to investigate the relationship between social media and social networks. Besides, a number of advantages and disadvantages of social media are also indicated clearly, which serves as the basis for the author to propose certain measures to improve the social network environment as well as reduce inconvenience to users. In the article, the Code of Conduct on social networks promulgated by the Ministry of Information and Communications of Vietnam is analyzed to help users to be aware of ethical standards of behavior on social networks as well as maintain and develop personal freedom, business freedom, and non-discriminatory service providers at home and abroad, contributing to building a safe and healthy social network in Vietnam.

The Effect of Shade and NPK Fertilization on Growth and Yield of Asystasia gangetica as a Forage

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Asystasia gangetica is a weed usually found in oil palm plantations, which is used as a source of forage and cultivated at a known effective shade level and optimal fertilizer dosage. Therefore, this study was carried out at a place without shade (NS) and 75% of shading net (S) at the Experimental Field of the Faculty of Agriculture, Universitas Mulawarman, Samarinda, Indonesia. The seedlings used were planted and fertilized with NPK at doses of 0 g, 1.6 g, and 3.2 g per polybag. The results showed that the level of shade affected plant height, several branches, yield of dry matter shoot, the content of chlorophyll a, b, and a/b content, CP, CF, EE, NFE, and ash, but not on chlorophyll a+b. The dosage of NPK fertilizer affected plant height, the number of branches, yield of dry matter, chlorophyll a, b, and a+b content, CP, CF, EE, NFE, and ash content, while chlorophyll a/b ratio was not influenced. The interaction between shade level and NPK fertilizer dose only occurred in the number of branches, chlorophyll a, b, and b+c content, CP, CF, EE, and ash content, but not on chlorophyll a/b ratio and NFE content. The flowering rate was faster in NS plants, where those with NPK fertilizer dose of 0.32 g/polybag gave the highest yield, except for CP and ash content which had the highest yields on S plants with 0.32 g NPK/polybag.

Virtual Reality and Language Learning in Hospitality: An Investigation of Students’ Perceptions

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This research investigates the perceptions of students within the hospitality management program at Politeknik Negeri Lampung (Polinela) regarding the utilization of Virtual Reality (VR)-based learning in English for Hospitality, a specialized branch of English for Specific Purposes (ESP). With a qualitative approach, the study aims to uncover students’ perspectives on both the challenges encountered and the aspects appreciated in the context of VR-based language learning. The participants, comprising 23 individuals, responded to open-ended questions that aimed to delve into their experiences. The findings shed light on the feasibility and effectiveness of VR-based learning, with the majority of participants reporting minimal difficulties. Appreciation for the immersive learning experience, novelty, realism, and engagement factors were evident in their responses. This research contributes to the understanding of incorporating innovative technologies like VR in ESP contexts, highlighting the need to address technical challenges and optimize language support for a diverse learner population. The outcomes offer insights into the potential of VR-based learning to enhance language acquisition within specific vocational domains.

Diabetes Mellitus: A Leading Cause of Death Worldwide

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Diabetes mellitus, or commonly known as diabetes, is a metabolic disorder characterized by chronic hyperglycemia which results in insulin resistance, impaired insulin synthesis, or sometimes both. Diabetes affects roughly 400 million people worldwide and the majority being those who are from middle to low income countries. With 1.5 million diabetes related deaths worldwide each year, this literature review aims to give information about the 2 types of diabetes and also highlighting the appropriate preventative measures. Type 1 diabetes refers to the lack of insulin production and type 2 diabetes refers to lower production of insulin and increased insulin resistance; both will result in hyperglycemia in diabetic patients. Furthermore, this literature review also aims to explore and describe the pathogenesis and treatments of the 2 types of diabetes.

Highways the Death Door of Wild Life: A Comprehensive Study in Indian Thar Desert

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Highways play a crucial role in economic development of any country. Besides this, highways are also one of the causal agents of wild life destruction. The present investigation was based on the study of mortality rate in some selected wild animal groups in road accidents viz., Mammals, Birds and Reptiles on the national and state highways passing through the Indian Thar Desert, and the survey of biodiversity of roadside fauna and flora. The survey was also focused on the effects of highways on the population density and biodiversity of the area. Among the selected animal groups Mongoose, Squirrel, Wild Boar, Hedgehog, Chinkara, Desert fox, Nilgai, Greater Coucal (Crow Pheasant), Sparrow, Partridge, Babbler, White eared and Red Vented Bulbul, Peacock, Desert Monitor, Garden Lizzard, Skinks, Cobra, Vipers etc. were found killed in the road accidents. Maximum mortality rate in the road accidents during the survey was observed in Mongoose, Greater Coucal and Desert monitor (Varanus) throughout the study period. It was experienced that unavailability of safe passes across the highways, negligence driving and over speed of the vehicles were the major causes of wild life destruction on the highways.  Maximum mortality rate of wild animals was found in July to November in each calendar year and minimum was during the month December to February. By the present investigation it was suggested that making transverse tunnels across the highways at regular interval, warning signboards about the wild life abundance regions, awareness among the drivers for wildlife protection and covering the road sides with net fencing in wild life abundant areas may reduce some degree of wildlife destruction in road accidents.

The Effectiveness Compulsory Road Traffic Accident Fund Contribution (SWKDLLJ) Application Based on Usability to Motorized Vehicles Driver

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Implementation of Mandatory Road Traffic Accident Fund Contribution is very necessary and is a manifestation of the responsibility of the state in implementing policies as a social and welfare state so that these policies can be felt by all Indonesian citizens in accordance with the national ideology, namely Pancasila as a way of life. In this paper examines the effectiveness of the application of mandatory contributions to road traffic accident funds based on their use for motorized vehicle drivers. This research method has the character of “Normological-Norms Wishenchaft” in studying philosophical, juridical, and sociological facts about the regulation of the effectiveness of SWDKLLJ implementation. The results of this research are expected to the government or related stakeholders to be able to explain in detail the meaning and use of the SWDKLLJ policy which is interpreted as a Traffic Accident Compulsory Contribution Fund so that there is no confusion or ambiguity in the implementation of its application, so that public vehicle owners in the sense of entrepreneurs and private vehicle owners understand well the procedure in terms of benefits and usability to claim when experiencing an accident.

Consumer Preferences of Ginger, Curcumin, and Cinnamon-Based Instant Herbal Beverages during Covid-19 Pandemic

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The demand for functional beverage products has increased during the COVID-19 pandemic. Due to competition in the market, manufacturers need to innovate on product attributes. One of herbal beverages innovation is instant beverages made from ginger, curcumin, and cinnamon. This product also enriched with sugar, lemongrass and others natural ingredients. The new formulation of this beverages encourage the need for study on the level of consumer preferences for products. Thus, this study aimed to analyze the order of attributes of instant herbal beverages based on the level of consumer interest and the combination of attribute levels of the product according to consumer preferences. The results of consumer preferences were known through conjoint analysis of respondents in Yogyakarta Province, Indonesia. In this study, four attributes were used, namely packaging, taste, color, and price. The results showed that the order of attributes based on the importance values according to consumer preferences for the products were price (35.54%), taste (30.03%), color (18.39%), and packaging (16.04%). While the results of the combination of attribute levels that were most preferred by consumers are canned packaging, very strong taste, bright color, and price IDR 75,000.

The demand for functional beverage products has risen dramatically during the COVID-19 pandemic. As a result of market competitiveness, producers must innovate on product attributes. Instant beverages prepared from ginger, curcumin, and cinnamon are one herbal beverage innovation produced by one of herbal company in Yogyakarta.

Business Escalation Strategy Using Time Series Forecasting for Hotel X in Yogyakarta

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Yogyakarta is one of the cities attracting significant foreign and local tourist attention with its beautiful city, culture, education, and traditional cuisine which prospered the hospitality industry in the city. However, since the pandemic Covid-19 hit the global economy in 2020, Hotel X Yogyakarta was also affected. The total occupancy room per year fell ten times lower than usual during the pandemic which jeopardized the business stability. Starting from preliminary interviews and SWOT analysis, this research aims to figure out what strategy needs to be implemented in Hotel X Yogyakarta to escalate the business and stabilize the occupancy room by using a quantitative methodology from a marketing and business analytic perspective. All data provided in this research is based on the internal data and information from the hotel, systematically calculated with Time Series Forecasting Theory using ARMA and ARIMA to provide a comprehensive forecasting result for business escalation strategy that is proposed to be implemented in Hotel X Yogyakarta.

Tuning Mechanical Properties of the Composite Nanofibers by Changing the Composition of the Polymer Solution

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Composite nanofibers are suitable candidates for applications in biomedical engineering. The relationship and the balance between the structural-volumetric characteristics and the mechanical behavior of the nanofibrous composites have been proved but, in this study, we studied the pattern of such relationships between random and aligned nanofibrous composites made up of PLGA and fibrin. After evaluating the fibers’ morphology and the mats’ porosity, the relationship between these two features and the tensile strength of the mats was investigated. All mats exhibited relatively homogeneous fibers with higher fiber diameters for random fibers than the oriented ones (0.23 to 1.65 µm and 0.34 to 0.58 µm, respectively) and the diameter of the fibers decreased by fibrin percentage. The porosity proportions of the mats were in the range of 78.4% to 81.4% and random mats depicted higher porosity and interconnected pores. The mechanical features of the mats were compatible with natural tissues and the mechanical characteristics of the aligned mats were higher. In aligned mats, fibrin decreased the diameter of the fibers and the porosity proportion, limited the fiber’s thickness distribution, and increased the interconnectivity of the pores and all these factors led to lowering the tensile strength and the stiffness of the aligned mats. On the other hand, the porosity features of the random mats did not significantly change by fibrin, but fibrin lowered the diameter of the fibers and limited the fiber’s thickness distribution, and these two factors decreased the tensile strength and stiffness of the random mats.