http://ajstd.org/index.php/ajstd/issue/feed ASEAN Journal on Science and Technology for Development 2022-04-28T00:00:00+07:00 Widodo ajstd.journal@gmail.com Open Journal Systems <h2>About the <em>ASEAN Journal on Science &amp; Technology for Development</em></h2> <p style="font-weight: 300; font-size: 1.01rem;">Jointly published by the ASEAN Committee on Science and Technology and the Ministry of Research, Technology, and Higher Education of the Republic of Indonesia, the <em>ASEAN Journal on Science &amp; Technology for Development</em> (print ISSN 0217-5460; online ISSN 2224-9028) is a peer-reviewed open access journal focusing on the publication of articles that make positive, tangible contributions to science and technology in the ASEAN region. Its main aim is to promote and Google Scholar, ID Scopus, ResearchGate, Orcid), accelerate the discovery and ultimate ASEAN-wide application of scientific and technological innovations, the consequence of which should be greater prosperity for the people of Southeast Asia.</p> <p style="font-weight: 300; font-size: 1.01rem;">AJSTD covers a wide range of technology-related subjects in the context of ASEAN, including biotechnology, non-conventional energy research, materials science and technology, marine sciences, meteorology and geophysics, food science and technology, microelectronics and information technology, space applications, science and technology policy, and infrastructure and resources development.</p> <h2>About The ASEAN Committee on Science and Technology</h2> <p style="font-weight: 300; font-size: 1.01rem;">The ASEAN Committee on Science and Technology was established to strengthen and enhance the capability of ASEAN in science and technology so that it can promote economic development and help achieve a high quality of life for its people. Its terms and reference are:</p> <ul class="asean-terms" style="font-weight: 300; font-size: 1.01rem;"> <li class="show">To generate and promote development of scientific and technological expertise and manpower in the ASEAN region;</li> <li class="show">To facilite and accelerate the transfer of scientific and technological development among ASEAN countries and from more advanced regions of the world to the ASEAN region;</li> <li class="show">To provide support and assistance in the development and application of research discoveries and technological practices of endogenous origin for the common good, and in the more effective use of natural resources available in the ASEAN region and in general; and</li> <li class="show">To provide scientific and technological support towards the implementation of existing and future ASEAN projects.</li> </ul> <p style="font-weight: 300; font-size: 1.01rem;">Further information about the activities of ASEAN COST can be <a class="border-hover" href="http://astnet.asean.org/index.php?option=com_content&amp;view=categories&amp;id=8&amp;Itemid=130" target="_blank" rel="noopener">found on its website</a>.</p> http://ajstd.org/index.php/ajstd/article/view/735 Regulatory Amendments of The Strategic Policy for The Job Creation in Indonesia: Research and Innovation Aspect 2021-12-10T08:56:36+07:00 Prakoso Bhairawa Putera prak001@lipi.go.id Ida Widianingsih ida.widianingsih@unpad.ac.id Sinta Ningrum sinta.ningrum@unpad.ac.id Suryanto suryanto@unpad.ac.id Yan Rianto yan.rianto@lipi.go.id <p>The Job Creation Law, enacted in Indonesia in November 2020, has provided a new understanding of the sectors, such as investment and business activities, employment, and ease of conducting business, that are directly related to various aspects of regulatory adjustment. Research and innovation related to regulatory adjustments have received growing attention in recent years. This article thus attempts to reveal regulatory amendments from the strategic policy of job creation, particularly in terms of research and innovation, grouped into four topics: 1) conducting research and innovation activities; 2) supporting human resources and expertise; 3) stipulating policy support for facilitation, licensing, and taxation; and 4) endorsing the institutional implications of research and innovation in the regions.</p> 2022-04-28T00:00:00+07:00 Copyright (c) 2022 The Author(s) http://ajstd.org/index.php/ajstd/article/view/740 Grand Design for Merapi Irrigation Channel System Using Watershed and River Region Approaches based on Community Development in Yogyakarta, Indonesia 2021-10-19T00:16:55+07:00 Slamet Suprayogi ssuprayogi@ugm.ac.id Totok Gunawan tgunawan@ugm.ac.id Sigit Heru Murti sigit.heru.m@ugm.ac.id Wikan Jaya Prihantarto wikanjaya@fis.unp.ac.id Masrur Alatas masruralatas@gmail.com <p>This paper proposes a grand design for Merapi Irrigation Channel, an irrigation channel system spanning from Turi to Cangkringan District in Yogyakarta, Indonesia. This design is based on Geographic Information System research to assess the feasibility of the system from two aspects, namely geophysics using site selection approaches (watershed and river region) and community aspirations, analyze potential water resource availability to support its sustainability, and construct a grand design. Primary data acquired from IKONOS image interpretation were used to collect geophysical and ?eld data for parameter mapping, and spatial data were modeled using Geographic Information System technology to determine paths, directions, and routes. Community aspirations were obtained by structured interviews with key informants and focus group discussions with community groups in village units. Results showed that the land carrying capacity geophysically allowed Krasak–Bedog Rivers as the permanent discharge of 123.78 m<sup>3</sup>/s of water, which is consistent with community aspirations for high irrigation water discharge in traversed districts. Overall, 19 rivers and 9 arti?cial retentions in the channel system respectively produced maximum discharges of 123.78 and 12 m<sup>3</sup>/s. The grand design included the construction of a 41 km long Merapi Channel from Turi (speci?cally Wonokerto Village) at 500 masl to Cangkringan (Glagaharjo) at 450 masl.</p> 2022-04-28T00:00:00+07:00 Copyright (c) 2022 The Author(s) http://ajstd.org/index.php/ajstd/article/view/759 Isolation and Characterization of Potential Lactic Acid Producing Bacteria from Fermented Fruit Juice 2022-03-15T09:44:41+07:00 Wah Wah Than wahwahthan7@gmail.com Saw Sandar Maw masawsandarmaw@gmail.com Reemon Htun reemonh@gmail.com <p>Lactobacillus species are used as probiotics to inhibit human pathogens because of their ability to produce antimicrobial substances. However, when different kinds of antibiotics are used, the antibiotic resistance of drug-resistant bacteria increases. In this study, lactic acid-producing bacteria with antimicrobial activity were isolated and used as probiotics to inhibit six human pathogens, namely Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, Bacillus cereus, Salmonella typhi, and Shigella boydii. Nine bacterial isolates were obtained from the crude juice of sugar cane (Saccharum officinarum), strawberry (Fragaria ananassa), and fruit pulp of palm (Borassus flabellifer). Among them, three bacterial isolates (S1, SC, and PP) produced acid and clear zones around the colonies on Glucose Yeast Extract media supplemented with calcium carbonate (GYC). These three bacterial strains were then identified on the basis of colony morphology and using different biochemical tests. 16s rRNA sequencing identified the indigenous lactic acid-producing bacteria S1 as Lactobacillus plantarum and both isolates (SC and PP) as Leuconostoc mesenteroides. L. plantarum (S1) showed the best inhibition zone (12 mm) on pathogens S. aureus, P. aeruginosa, and E. coli. Therefore, these lactic acid-producing bacteria isolated from various fermented fruit juices in Myanmar shows potential for development as probiotics.</p> 2022-04-28T00:00:00+07:00 Copyright (c) 2022 The Author(s) http://ajstd.org/index.php/ajstd/article/view/715 Coastal Vulnerability Assessment for Community Resilience on Abrasion: Case of Bugel Coast, Kulon Progo Regency, Indonesia 2021-10-12T07:52:03+07:00 Cahyadi Ramadhan cahyadi.ramadhan@mail.ugm.ac.id Dina Ruslanjari dienarus@ugm.ac.id Diana Puspitasari dianapuspitasari15@mail.ugm.ac.id Gading Dita Indasari gadingdita97@mail.ugm.ac.id Naufal Sandro Naufal.sandro@mail.ugm.ac.id <p>The coastal boundary can be optimized for settlement and agriculture site based on a spatial plan for Kulon Progo Regency 2012–2032 within a minimum distance of 100m from the coastline. The location of ring 1 local transmigration settlement on the Bugel Coast is less than 100 m. The increasing trend in coastal erosion caused by climate change is a major contributing factor to the reduction of coastal borders. Thus, rapid assessment of coastal erosion vulnerability is necessary to determine an effective coastal management response. This paper aims to analyze the coastal erosion level using vulnerability assessment, geomorphology of coastal areas, and community resilience impact. The methods used in the mapping of coastal segments are smartline and coastal vulnerability index (CVI). The Smartline method is depicted with a line that runs along the coast with information on geomorphological conditions, whereas the CVI method will give weight to each physical parameter of coastal erosion vulnerability. Results showed that the average area of Bugel Coast decreased by 4,794.94 m<sup>2</sup> /year and retreated by 4.36 m/year until the borders become closer to one another, thereby threatening the settlement area. The coastal erosion vulnerability was dominated by a moderate level of 325.14 m (30.48%) to a high level of 322.31 m (30.22%) of the total study areas. This result indicated the huge risk of coastal erosion. Therefore, effective community adaptation and mitigation strategies should be considered to reduce the degradation of coastal border resources and ensure the sustainability of local life, such as the combination of structural and non-structural mitigations that prioritize the sustainability of coastal ecosystems.</p> 2022-04-28T00:00:00+07:00 Copyright (c) 2022 The Author(s) http://ajstd.org/index.php/ajstd/article/view/747 Deepening Knowledge of Nutrient Dynamics in Coastal Waters 2022-03-16T10:29:53+07:00 Hanny Meirinawati hanny.meirinawati@gmail.com A'an Johan Wahyudi aanj001@lipi.go.id <p>Nutrients are important compounds in waterbodies that regulate primary productivity and phytoplankton growth, the basis of food webs. Increased nutrient concentration has become a serious concern because it causes eutrophication and threatens the sustainability of ecosystems. Eutrophication is the process of nutrient enrichment in water bodies that affects their productivity and decreases water quality. Although information about nutrient distribution, limiting nutrients, and nutrient budgets is important for coastal water management, studies of wide-scale nutrient dynamics in Indonesian waters remain limited. To provide comprehensive data on nutrients, this review summarized the concentrations and compositions of nutrients in coastal waters, compared the limiting nutrients in various coastal waters based on the Redfield ratio, and described the factors affecting nutrient budgets using the database in ScienceDirect and Google Scholar. Curation was performed to summarize the nutrient dynamics in coastal waters. Results showed that nutrient concentration differed in each region due to many factors. Anthropogenic inputs greatly affected nutrients in tropical areas, such as Jakarta Bay (Indonesia). Understanding the quality and characteristics of water can help in managing waterbodies. This study provided knowledge related to nutrient dynamics in Indonesian waters and global biogeochemistry.</p> 2022-04-28T00:00:00+07:00 Copyright (c) 2022 The Author(s)