Judul: Perancangan Model Bisnis 'LaHaunt' Wadah Penjualan dan Investasi Produk Pertanian dengan Pendekatan Gamification Dynamics
Abstrak: LaHaunt merupakan inovasi penerapan gamifikasi pada aplikasi marketplace dan media investasi pertanian untuk meningkatkan ketertarikan dan keterlibatan pengguna millennials dan gen z. Penelitian ini bertujuan untuk mengidentifikasi permasalahan calon pengguna, merancang model gamifikasi dan bisnis “LaHaunt”, dan merancang prototype yang sesuai. Penelitian ini melibatkan 38 responden di Jabodetabek, sejak Januari hingga Mei 2021, menggunakan metode design thinking, gamification model canvas, system usability scale, dan analisis model ACCORD. Hasil penelitian ini berupa LaHaunt yang dapat menyelesaikan empat kategori permasalahan pengguna, meliputi kelengkapan produk, layanan pemesanan, pemrosesan pesanan, dan layanan investasi. LaHaunt menerapkan model bisnis strategis, yang terintegrasi dengan gamifikasi sistematis mencakup dinamika emotions dan relationships. Solusi berupa prototype LaHaunt dirancang sesuai dengan preferensi pengguna, dan terverifikasi pada uji persepsi kegunaan., LaHaunt is an innovative gamification application in the marketplace application and agriculture investment platform to increase the interest and engagement of millennial and gen z users. This study aims to identify the problem of potential users, design a gamification model and business model for LaHaunt, and design a suitable prototype. This study involved 38 respondents in Greater Jakarta from January to May 2021. This study was conducted using the design thinking methods, gamification model canvas, system usability scale, and ACCORD model analysis. The result showed that LaHaunt could solve four categories of users’ problems, including product completeness, ordering services, order processing, and investment services. LaHaunt applied a strategic business model which is integrated with systematic gamification that included emotions and relationships dynamics. The prototype of LaHaunt was designed based on user preferences and verified on perceived usability test.
Keyword: ACCORD model analysis, Agriculture app, Design thinking, Gamification, Gamification model canvas

Judul: “Designing the FWCHANGER Application as the Solutions of Food Waste Issues using Social Business Model
Abstrak: The issue of food waste is increasingly gaining attention in various countries due to its detrimental impact on the environment, economy, and society. One of the favored options for managing this waste is through recycling, which is now combined with the concept of "from trash to cash" through digital platforms. This research aims to identify the obstacles faced by households in managing food waste, design a prototype food waste management application as a solution to overcome the problem of food waste in the household, and develop an appropriate and verified business model to solve the problem of food waste in the household. This study employed customer discovery with a descriptive qualitative approach, using non-probability sampling techniques in the form of purposive sampling by distribute the survey online from June 2023 to August 2023. The results of that study indicated that respondents faced five main issues related to food waste, namely a lack of knowledge, limited information about waste disposal service providers, time constraints, difficulties in dealing with easily perishable waste, and laziness. In addressing those issues, FWCHANGER had developed several solutions by integrating features tailored to the preferences of respondents. The adopted business model, the social lean canvas, was successfully verified through three crucial components: product-market fit, customer outreach approach, and the company's profit strategy., Isu food waste atau sampah makanan yang semakin menjadi perhatian di berbagai negara karena dampaknya yang merugikan terhadap lingkungan, ekonomi, dan sosial. Salah satu opsi yang diminati untuk mengelola sampah ini adalah dengan metode daur ulang (recycle), yang kini dikombinasikan dengan konsep "from trash to cash" melalui digital platform. Penelitian ini bertujuan untuk mengidentifikasi kendala yang dihadapi rumah tangga dalam mengelola food waste, merancang prototype aplikasi pengelolaan food waste sebagai solusi dalam mengatasi permasalahan limbah food waste dalam rumah tangga, dan menyusun model bisnis yang tepat dan terverifikasi untuk memecahkan permasalahan limbah food waste dalam rumah tangga. Metode yang digunakan dalam penelitian ini adalah customer discovery dengan pendekatan deskriptif kualitatif, dengan menggunakan teknik non-probability sampling berupa purposive sampling dengan menyebarkan survei secara online yang berlangsung pada Juni 2023 hingga Agustus 2023. Hasil dari studi ini mengindikasikan bahwa ada lima isu utama yang dihadapi oleh responden terkait food waste yaitu kurangnya pengetahuan, informasi terbatas tentang penyedia jasa penyaluran, keterbatasan waktu, kesulitan menghadapi sampah yang mudah busuk, dan rasa malas. Dalam mengatasi hal tersebut, FWCHANGER telah mengembangkan beberapa solusi dengan mengintegrasikan fitur-fitur yang disesuaikan sesuai dengan preferensi para responden. Model bisnis yang diadopsi, yaitu social lean canvas, telah berhasil diverifikasi melalui tiga komponen penting, yakni kesesuaian produk dengan pasar, pendekatan dalam menjangkau pelanggan, serta strategi perusahaan menghasilkan keuntungan.
Keyword: customer discovery, digital platform, social lean canvas, sustainable living

Judul: Thermal Characteristics and Dynamics of Tropical Cyclone over Western North Pacific Ocean: A Case Study of Typhoon Songda (Chedeng) 2011
Abstrak: The frequent occasion of Tropical Cyclone (TC) over Western North Pacific (WNP) Ocean lies from 10˚N to 26˚N and 121˚E to 170˚E. Sources of TC development come from warm ocean temperature where latent heat is released during condensation processes and subsequently concentrated in the boundary layer. Relative humidity at 850-700 hPa is responsible to produce the most intense storm. Meanwhile, weak vertical wind shear between 850-200 hPa is one of the dynamical factors that lead to the development of TC. Pressure level of 850-200 hPa is chosen to minimize the thermodynamic effect in the lower troposphere. Typhoon Songda (Chedeng in the Philippines) or TSC lasted from May 18th to 30th, 2011 and strengthened into powerful Super Typhoon stage between May 24th and 27th. Long curving track and the exhibition of all sequences of TC life cycle, TSC is then considered as an ideal case of TC. The objective of the study with case of TSC is to investigate the role of thermal characteristics and dynamics on TC intensity. The research is carried out by using Advanced Research of Weather Research and Forecasting model (WRF ARW model) version 3.3. Two domains are employed in the model. The first domain situate from 02˚N to 40˚N and 118˚E to 149˚E and cover spatial resolution () of 33.1 km. The second domain situate from 09˚N to 27˚N and 119˚E to 132˚E with of 11 km. Timestep of the model () is 120 seconds. The model is supported by the following physical parameterization, i.e., Yonsei University Scheme (YSU) in the boundary layer, Kain-Fritsch scheme (KF) in the cumulus, and WRF Single-Moment 3-class scheme in the microphysics. Initial meteorological condition prior to the formation of the cyclone is generated using WRF ARW standard-release model. Sensitivity of the model output is obtained from a selected single-parameter change scenarios, namely, 10 % to 20 % decrease and increase of wind shear initial data at 850-200 hPa, and by 10 % to 20 % decrease of relative humidity initial data at 850-700 hPa. The result showed that the negative correlations between wind shear and intensity are found in wind shear scenarios. Wind shears of 10 ms-1 which lead to strengthening of the wind intensity in the early period of Typhoon development are found in wind shear scenarios. The effect of wind shear changes on wind intensity is statistically significant in the 20 % wind shear scenarios. During mature stage, weak wind intensity occurred when wind shear increase as given in the WRF standard-release and the 20 % decreasing scenario. Different situation is found in the 20 % increasing scenario where wind shear tend to weak and lead to strong wind intensity at this stage. Meanwhile, the reduction of moisture supply at 850-700 hPa resulting from 20 % decreasing relative humidity play a major role in the weakening of wind intensity and reduces mechanical energy of the cycle process as much as 300 J kg-1.
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