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Nusantara Science and Technology Proceedings
Published by Future Science
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Arjuna Subject : Ilmu Ekonomi, Ekonometrika dan Keuangan (semua kategori) - Ilmu Ekonomi, Ekonometrika dan Keuangan (Lain-Lain)
Articles 1,542 Documents
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Pathogenicity of Entomopathogenic Nematodes (NEP) Results of In Vitro Propagation Using Egg Yolk Media Against Mustard Caterpillar Plutella xylostella Mohamad Hipti; Wiludjeng Widajati; Sri Wiyatiningsih; Ramadhani Mahendra Kusuma
Nusantara Science and Technology Proceedings Sains dan Teknologi Pertanian Modern
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2021.1509

Abstract

Decreased mustard plant production is inseparable from the presence of plant pests and disease, one of which is Plutella xylostella. This pest can reduce the yield by 30-40%, even in some cases found to experience crop failure. Generally, in the community, controlling pests is using chemical pesticides. However, excessive use of chemical pesticides harms the environment and triggers health problems in humans, So, biological control is needed. One of them is an entomopathogenic nematode (NEP). Advantages Nematodes are environmentally friendly and are fast in crippling their host, but the multiplication of entomopathogenic nematodes encounters many obstacles, so research on these alternatives is needed. This research was carried out to determine the pathogenicity of entomopathogenic Nematodes cultured from the egg yolk media on Plutella xylostella larvae, then developed as an effective biocontrol. The pathogenicity test for Plutella xylostella larvae was performed using nine treatments placed in a factorial Completely Randomized Design (CRD) with each treatment repeated three times. The study indicate that the four bacterial isolates had the same ability to kill Plutella xylostella larvae during four days of observation, with the greatest percentage of 100 percent and the lowest percentage of 76.7 percent.
Biosensors in Perspective in the New Normal Era: Ultrasonic as an Innovative Early Detection of Fruit Flies Infestation on Sweet Arum Mango Wiwin Windriyanti; Mira Eka Nursandi
Nusantara Science and Technology Proceedings Sains dan Teknologi Pertanian Modern
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2021.1510

Abstract

The attack of fruit fly larvae in the flesh of the sweet arum mango can be detected without opening the fruit by a detection method using ultrasonic waves. The characteristics of ultrasonic waves used are attenuation coefficient, speed and zero moment power (Mo). In whole mango, the attenuation coefficient is 36.45 Np/M with ultrasonic wave speed 518.19 m/sec and zero moment power (Mo) 4.58. In its application, the estimation of the damage of the sweet arum mango with ultrasonic waves at the limit of attenuation coefficient of 34.76 Np/M, zero moment power (Mo) 5.60. The estimated attenuation coefficient of more than 34.76 Np/M mango fruit was declared intact, while the attenuation coefficient 34.76 Np/M was thought to have been attacked by fruit fly larvae. At the value of zero moment power (Mo) > 5.6 mangoes are declared intact, but if the Mo is 5.60, it is declared to have been attacked by fruit fly larvae in it. The use of the ultrasonic sensor HC-SR04 is effective in detecting the attack of fruit fly larvae (Bactrocera dorsalis) in the flesh of the sweet arum mango at a distance of 6 cm with a warning sound indicator on the LCD. If the output voltage value on the LCD shows > 30 mV, the buzzer will sound which indicates that the fruit inside has softened due to being attacked by fruit fly larvae or due to impact, on the contrary if the output voltage value is 30 mV and the buzzel does not sound, it indicates the mango is still healthy and intact.
Nirs Technology (Near Infrared Reflectance Spectroscopy) for Detecting Soil Fertility Case Study in Aceh Province: Review Siti Mechram; Bambang Rahadi; Zaenal Kusuma; Soemarno
Nusantara Science and Technology Proceedings Sains dan Teknologi Pertanian Modern
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2021.1511

Abstract

Assessment of soil fertility status can be done through a soil test approach, but the main problem is the difficulty of predicting the nutrient content in the soil. This requires laboratory testing and takes several times, while the nutrient requirements must be known immediately so that plants can grow ideally. In the last few decades, researchers have been trying to find alternative methods that are fast, innovative, effective, environmentally friendly, and non-destructive to predict nutrient concentrations. One of the technologies that are currently developing rapidly and has the potential to be used to detect/predict the nutrient content is near-infrared reflectance (NIR). Many studies have been conducted and reported related to the application of close-range infrastructure technology, especially for speed and soil quality. This paper discusses several reviews of research in Aceh Province related to the application of NIRS Technology to detect soil fertility. The NIR technique is an analytical technique that is fast and does not damage the sample of the material to be tested. Information on chemicals based on biological reactions after exposure to NIR radiation. Near-infrared light is available in the wavelength range up to 780 nm to 2500 nm or above visible light. When a ray coming from a light source A falls on a biological object, there will be an interaction between the object and the light. The object's location will respond in the form of reflection, absorbance and transmission. The reflection response can be in the form of direct reflection (specular reflectance) which means that light is reflected back by objects, pseudo reflection (diffuse reflectance) where light is first and then reflected. This research about NIR technology, it can solve problems, especially regarding the improvement and evaluation of soil fertility by predicting the right model to measure the nutrient content of the soil.
Stages of Early Adolescent Smoking Behavior Development in Tegal City, Indonesia: A Qualitative Study Agus Susanto; Hartono; Ismi Dwi Astuti Nurhaeni; Drajat Tri Kartono
Nusantara Science and Technology Proceedings The 3rd International Conference on Vocational Innovation and Applied Sciences (ICVIAS) 2021
Publisher : Future Science

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Abstract

Early adolescent smoking behavior is a complex activity, which is formed through several stages. Not all teenagers who take the initiative to smoke will end up as active smokers. Many factors influence the formation of adolescent smoking behavior. The study aims to explore the stages of early teenagers' cigarette encounters until becoming a smoker in Tegal City, Province of Central Java, Indonesia. The researcher has done in-depth qualitative interviews with thirty-five participants. Study participants are male smoker adolescents. Data analysis used themes. The researcher broke the finding down into four stages. The four stages are to encounter cigarettes, try smoking, consider being a smoker, and enjoy smoking. Most teenagers learn from parents and peers about cigarettes. The reason for most adolescents' attempts was that older playmates threatened them. Peers and parents are crucial factors in shaping early adolescent smoking behavior. To stop smoking behavior, both parties must be actively interested in health promotion activities. The results of the study can be used as a reference in the preparation of adolescent smoking behavior prevention programs based on the condition of adolescents.
E-Siskamling to go to Smart Village: Analysis and design Saffana Assani; Hermanto
Nusantara Science and Technology Proceedings The 3rd International Conference on Vocational Innovation and Applied Sciences (ICVIAS) 2021
Publisher : Future Science

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Abstract

The implementation of siskamling activities carried out by rotating patrols by residents is a form of system in maintaining community security. In the management of scheduling and delivery of information on the patrol schedule in the siskamling, it is still done manually, so it requires a variety of handicapping tools, a place to store recording tools, inflexible management times, and various means of delivering information. The manual system is also vulnerable to further problems, such as losing patrol schedule records, large record storage areas because records are piling up, and patrol schedule information that does not reach residents because the information media used is not easy to access. This study aims to produce an application that can facilitate the activities of managing the security guard patrol schedule and become a medium for conveying patrol schedule information to residents. The application is also one of the implementations of efforts to become a smart village. The application that will be developed in this research is called E-Siskamling (electronic siskamling). E-Siskamling will be developed using the SDLC (system development live cycle) methodology. This methodology has six development phases, namely feasibility study, investigation, analysis, design, implementation, as well as review and maintenance. This paper will describe the analysis and design of the application, which is part of the iteration phase. The analysis phase is carried out by making a document of the functional and non-functional requirements analysis of the system. For the design includes system design and database design. The system design uses the Unified Modeling Language (UML) and the database design uses a conceptual model design called CDM and a physical model design called PDM. The results of this study are in the form of analysis (functional and non functional analysis documents) and design (UML, CDM, anf PDM) documents. The conclusion in this initial research is that the analysis and design documents are feasible to be used for the next stage, namely application development.
The Effect of Covid-19 Pandemic on Increasing Rice Tiwul Business Income Using System Dynamic Approach Titus Kristanto; Dewi Rahmawati; Ayu Endah Wahyuni; Muhammad Nasrullah; Reza Arindra Fadillah; Amanda Amalia
Nusantara Science and Technology Proceedings The 3rd International Conference on Vocational Innovation and Applied Sciences (ICVIAS) 2021
Publisher : Future Science

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Abstract

In industry 4.0, the development of the food business is growing rapidly with the support of technology. His food business is tiwul rice. The establishment of the Nasi Tiwul SBR business began in March 2020 (coinciding with the beginning of the Covid-19 pandemic in Indonesia). The problem that occurs in Nasi Tiwul SBR is increasing the in-come of tiwul rice during the Covid-19 pandemic. The approach taken in this research is to use a dynamic system approach. The purpose of using a dynamic system approach is to provide feedback on the behavior of the systems involved in the research, especially the owner of the tiwul rice business. The result of this research is to increase the business income of tiwul rice and increase the market share of tiwul rice products.
Analysis of the Selling Price Determination of Tofu and Tempeh During the COVID-19 Pandemic in Usaha Dagang Solo Asri Amin Rais; Lusianus Heronimus Sinyo Kelen
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series A
Publisher : Future Science

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Abstract

Determination of the selling price is important in marketing products, especially during the COVID-19 pandemic which made almost all economic sectors weaken and made business sales, both large and micro, small and medium, to decline. One of the sectors affected by COVID-19 is food production (such as tofu and tempeh businesses). The purpose of this study is to analyze the value or determination of the selling price of tofu and tempeh products during the COVID-19 pandemic. Specifically, data on Usaha Dagang (UD) Solo Asri in the form of costs incurred in one-time production of tofu and tempeh during the COVID-19 pandemic. This business was chosen because it is the largest tofu and tempeh business in Kabupaten Sumba Timur. The method used in analyzing the data in this study is the method of determining the price using cost plus pricing with a full costing approach. The data used in this study is primary data where the researcher conducts direct interviews.This technique was chosen because UD Solo Asri does not have financial reports, so an interview approach is needed to obtain data. From the results of data processing, it can be concluded that the selling price for each product with an expected profit of 10 percent during the COVID-19 pandemic is Rp275 per 3 pieces for tofu and RP7.476 per 7 packs of tempeh.
Marketing Strategy Analysis Generating of Traffic and Sales Conversion in Shopee (Case Studies at Roemah Aisya Store) Novitasari; Hastuti Redyanita
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series A
Publisher : Future Science

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Abstract

Due to Covid-19 Pandemic, People finally make a business and fulfill their needs from home, one of them is to utilize the marketplace. Shopee as the highest marketplace has step-up its number of sellers, viewers, and transactions. More sellers in Shopee make the high seller competition climate. One of the sellers in Shopee, Roemah Aisya store, is going through this competition. There are more “braver” sellers that influence the turnover of Roemah Aisya. It declines in the year-end sales. The reasons for the declining turnover of Roemah Aisya are low traffic and sales conversion as well as it hasn’t applied accurate marketing strategies in the middle of pandemic and tight competition in Shopee. This research aims to give sale strategic solutions for the problems faced by Roemah Aisyah. This research uses a qualitative descriptive method by analyzing Roemah Aisya sales and strategic marketing that can produce traffic and sale conversion. The result of research explains that the unstable of Roemah Aisya sales is caused by low traffic and sale conversation. Roemah Aisya hasn’t optimized features and services in Shopee yet. These implications of research for the management field can give the marketing strategic plan and policy choice. It’s expected that the research result can give the information contribution especially for Roemah Aisya and MSMEs in general, that is marketing strategy generating traffic and sales contribution in Shopee. Besides that this research result can contribute some suggestions for digital business policymakers.
Knowledge of Student Study Service on Caricaceae in Their Neighborhoods Ainun Nikmati Laily; Purnomo; Budi Setiadi Daryono; Aziz Purwantoro
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series A
Publisher : Future Science

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Abstract

Indonesia is one of the countries with abundant and diverse natural resources so that it is known as mega biodiversity. The high biodiversity in Indonesia is partly due to its geographic location as a tropical country. Meanwhile, plants belonging to the Caricaceae are one of the groups of plants that are very easy to find, affordable prices, and can be grown in most areas in Indonesia. During the coronavirus (COVID-19) pandemic, the student study service from home (Indonesian: Kuliah Kerja Nyata – Virtual Dari Rumah - or KKN-VDR) requires college students to explore the potential of their place of residence, so knowledge about Caricaceae needs to be explored and studied to find out its potential use. This study aims to determine college students' knowledge of Caricaceae around where they live. This study uses a survey method. The results showed that the knowledge of student study service on the Caricaceae in several aspects had not yet reached what was desired. Thus it is necessary to conduct a joint evaluation to encourage the Indonesian student to be more critical in recognizing the potential of natural resources so that they can make the best use of them for welfare, especially Caricaceae.
Utilization of Modified Imperata Grass with Cu Nanoparticles as Methylene Blue Adsorbent Syaikhina Abdul Wakhid; Jauharuddin Luthfi Al Jabbar; Siti Rodiah
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series B
Publisher : Future Science

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Abstract

Imperata grass microcrystalline cellulose modified with Cu nanoparticles is one of the alternative adsorbents for the reduction of the concentration of methylene blue (MB) dye. The effectiveness of this developed adsorbent in the adsorption process of MB dye was studied. Cu nanoparticles were employed to modify the synthesized cellulose microcrystalline imperata grass. The modified Cu-cellulose adsorbent was successfully produced with brown color and Fourier Transform Infra-Red (FT-IR) identified the presence of OH, CH, and CO peaks. X-ray diffraction (XRD) analysis also confirmed that the produced adsorbent was in microcrystalline phase with a crystal size of 4.402 nm The microcrystalline cellulose-Cu nanoparticles used showed potential as an MB adsorbent, where the MB removal percentage (% A) was 59.574%.

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