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The aims of this study were 1) to determine the level of preference for the taste, aroma, texture and color of chocolate lava cake made from sorghum flour and cassava flour; and 2) knowing the composition of the chocolate lava cake ingredients based on sorghum flour and cassava flour which is the most preferred by the panelists. The methods used consist of library methods, experiments and hedonic tests. Result of the research to be explained descriptively. The results showed that the most preferred product by the panelists was 50% sorghum flour and 50% cassava flour. The average value of the product preference level is 4.73±0.81 (very like) for taste, 4.20±0.66 (very like) for aroma, 4.47±0.63 (very like) for texture and 4.73±0.58 (very much like) for color. The composition of chocolate lava cake is classified into the composition of the ingredients for the cake and the cake filling. The composition of the cake ingredients consists of 450 g dark cooking chocolate, 200 g brown sugar, 170 g olive oil, 50 g cocoa powder, 30 g sorghum flour, 30 g cassava flour, 20 g milk powder, 4 eggs, and ½  tsp baking powder. The composition of the cake filling ingredients consists of 200 g dark cooking chocolate and 15 g olive oil. It can be concluded, the selected product can be an alternative to healthy food products.

Online shopping is the process of purchasing goods / services by consumers to realtime sellers, without services, and through the internet. The development of online business in Indonesia is now very rapid, one of them by shopping online. Online stores or we often call e-commerce is a form of change that is presented by the internet in terms of innovation in shopping by providing various facilities in the transaction process. The aim of the writer is to determine the best e-commerce, therefore the author uses the SAW (Simple Additive Weighting) method because the method is able to make a more precise assessment because it is based on the value of criteria and preference weights that have been determined, besides that the SAW method also can select the best alternative from a number of alternatives because there is a ranking process after determining the weights for each attribute.

The capital market is one of the alternative sources of long-term funding among various other alternatives for companies that need funds for the sustainability of the company. The capital market has an important role for the economy of a country because the capital market performs a function, namely as a means for business funding or as a means for companies to obtain funds from the investor community.   For this reason, it is necessary to expand research that is supported by a basic theory, so the problem of factors capable of predicting changes in stock prices is proposed, where there are two variables that are thought to have an effect on changes in stock prices in this study. The two variables are asset structure and firm size. In addition, based on various previous research results, it was found that there were gaps or inconsistencies in the research results (gap research) conducted by researchers. On this basis, the title adopted from this research is "The Effect of Asset Structure and Company Size on Share Prices in Pharmaceutical Sub-Sector Companies on the Indonesia Stock Exchange".

Dates milk tempe is an alternative drink for health, which is made from tempe extract with natural sweetener honey and enriched with dates, so it is safe and healthy for consumption by all ages. The research objectives were to determine: 1) the organoleptic quality of date palm tempe milk; 2) community acceptance of date palm tempe milk; 3) determine the content of carbohydrates, protein and fat. The research method of making date palm milk is carried out in accordance with the procedure for making tempe milk. Organoleptic tests to determine acceptance were carried out on 30 semi-trained and untrained panelists. The nutritional content of date palm tempeh is calculated using the Gizipro application. The results showed that date palm milk has sensory characteristics of sweet and savory taste, aroma of soybean tempeh and dates, thick texture and dark brown color. Contains 5.31 g carbohydrates; 0.11 g protein; 0.14 g fat; and 2.14 mg of calcium. It has low carbohydrates, low fat content compared to tempeh milk, so it can be drunk by all ages and can prevent degenerative diseases.

The waste processing and renewable energy are being the issues in the industrial 4.0 era. Kitchen and organic trash in the rural areas will become a disaster if there is no solutions. On the other hand, kitchen and organic waste have a positive side, that they can be converted into biogas which can be converted into electricity. On the Minister of Energy and Mineral Resources Regulation Number 27 of 2014, supports the development of biogas and will buy electricity from the biogas conversion. The potential for biogas that obtained by the organic trash per 1000 people is 7619.8 liters of biogas, it meas that the energy contained is still abundant and the production can still be increased if processed with a modern digester system. This research produces a tool in the form of a portable digester that named GenBIoT (IoT-based Biogas Generator) which can be used by the public to produce biogas that  used by home industries or general factories. This research used the research method that similar to System Development Life Cycle (SDLC), this tool is built with several stages starting from planning analysis, designing, functional testing, data analysis and reporting of the results or implementing this tool that can be used as an alternative, as a cheap and easy source energy. This tool is based on the Internet of Things so that this tool can be monitored regarding gas pressure in the reactor, biogas volume and it will detect if there is a biogas leak so it will displayed on the system. To produce the maximum biogas composition, 50% of cow dung is required, 40% of kitchen trash and 10% of water with a ratio of 5: 4: 1 so it will produce 40 kg of biogas with a volume of methane gas (VGM) 0.11 m3 of biogas for cow dung. and 0.04 m3. The third experiment becomes the basis of future biogas production with energy produced from biogas per day of 716.39 Wh

Surakarta is one of the cities in Central Java which is known as the city of batik and a tourist destination area which is supported by tourist attractions in the form of various historical sites that have integrated with the culture of the local community. The arrival of tourists to various tourist destinations in Surakarta in addition to enjoying existing tourist objects is also to get souvenirs that have local uniqueness. Apart from hunting batik for souvenirs, many also hunt for distinctive T-shirts, especially for young tourists, because they are inspired like traveling to Bali and Jogja. To provide a new alternative in the form of t-shirts with designs that have local uniqueness, it is planned to partner with CV. Asta Saka Semesta which produces t-shirts, convection, and merchandising. Service methods in the form of training and assistance in making innovative designs for tourist souvenirs; lectures to increase knowledge about survival strategies in business; expansion of marketing through participation in exhibitions; documentation of product samples and procurement of shelves for product documentation that has been produced. The results are 5 innovative designs, namely the design of a tourist attraction patterned t-shirt combined with classic batik motifs, as well as the production process for tourist souvenirs, 2 t-shirt designers have increased their knowledge and skills in making designs to meet the needs of tourists.

The low standard of values ​​for natural science shows that Indonesia is still lagging behind other countries. This can be seen from the data from the results of the PISA survey conducted by the OECD in 2003 which states that the standard for Natural Sciences in Indonesia is 360.16, while the standard for Natural Sciences (IPA) in the world is 484.84. This data shows that the average score of Natural Sciences subjects is still very low. There are many factors that underlie the low value of IPA in Indonesia. one of them is the assumption that this subject is difficult. In addition, students also find this subject boring and uninteresting. Therefore, this study intends to develop alternative media for fifth grade students to help them learn science, namely in the form of an RPG game that can be played via a computer.