Jamu is a traditional herbal drink from Indonesia that has been inherited from generation to generation. Jamu drinks have a variety of recipes since their ingredients are derived from a combination of typical Indonesian spices that can be obtained in local markets. Previously, jamu was frequently associated with a bitter taste, but due to improvements and innovations, it may now adapt to the preferences of the younger generation. Moreover, modification of a recipe's look involving different hues may cause consumers to speculate about its taste. This study examines taste perception from the Indonesian traditional herbal drinks "jamu" color for the younger generation by using photo products image. The research method was conducted through experimentation by using a questionnaire and forum discussion in 2 phases on 111 visual communication students with an average age of 21.7 years. Results: white, red, blue, and yellow colors were preferred by the majority of participants, followed by orange and brownish-red colors, which were still mostly acceptable. However, brown and green were perceived as the colors that participants disliked the most. Based on the result of this experiment, it can be concluded that human perception of color and taste can also be applied to traditional herbal medicine; this result supports the innovative exploration of jamu recipes that can adapt to the tastes of the younger generation. The result of this study shows that perception is influenced by previous experience; several times, the data showed significantly that colors such as milk or common fruit juice would be perceived the same as the taste of jamu. Furthermore, these findings strengthen various previous studies that the color will be able to make humans perceive its taste; although sometimes the perception is wrong, it can be used as an important reference for industries. In addition, the results of this study also show that the perception of color can be done without the need to see the product directly.
COVID-19 has many symptoms and one of the serious symptoms are heart problems and the increase in body temperature. Checking the heart rate and body temperature can still be useful to be included in our daily live to prevent further spread of the virus. We proposed a solution to let the user do a COVID-19 self-detection by using Magic Mirror with IoT-based technology. This Magic Mirror uses two sensors (heart rate and temperature sensor) to measure user's heart rate and body temperature. If the user is suspected of having COVID-19, an alert will be displayed on the Magic Mirror or smartphone to let the user take further necessary action.
About 90% of the information needed for driving is received visually by the driver. Only a little information is received with hearing (horns and shock markers) and a sense of touch (tactile markers and rough roads). Most of the information they get is visual. The two most common equipment used by technicians to give information is signs and markers consisting of signs, colors, and words. Traffic signs are elements defined as a special set of code labels intended for traffic users, which are in a vertical field for traffic areas. It is a basic means of communication between authorities and road users. Standards and guidelines suggest the use of words and color codes that are appropriate for conveying the different intensity of hazards. Red, yellow, and blue indicates a decrease in the intensity of the danger. Likewise, danger, warning, and attention show the danger in decreasing intensity even though some studies find no significant differences in the hazard assessment of warning and attention words. Signs and color codes used in our study are capable of giving meaningful meaning, warning, attention, thinking, and notification. For colors, it will be red, yellow, green, white, blue, green, and orange. We will evaluate perceptions of implied danger and language effects.
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