bluuebunny/crossref_metadata_2025 huggingface dataset:
Cannabis increases susceptibility to false memory
Authors: Kloft Lilian , Otgaar Henry , Blokland Arjan , Monds Lauren A. , Toennes Stefan W. , Loftus Elizabeth F. , Ramaekers Johannes G.
Published: February 2020

With the growing global acceptance of cannabis and its widespread use by eyewitnesses and suspects in legal cases, understanding the popular drug’s ramifications for memory is a pressing need. In a double-blind, randomized, placebo-controlled trial, we examined the acute and delayed effects of Δ9-tetrahydrocannabinol (THC) intoxication on susceptibility to false memory in 64 healthy volunteers. Memory was tested immediately (encoding and retrieval under drug influence) and 1 wk later (retrieval sober). We used three different methods (associative word lists and two misinformation tasks using virtual reality). Across all methods, we found evidence for enhanced false-memory effects in intoxicated participants. Specifically, intoxicated participants showed higher false recognition in the associative word-list task both at immediate and delayed test than controls. This yes bias became increasingly strong with decreasing levels of association between studied and test items. In a misinformation task, intoxicated participants were more susceptible to false-memory creation using a virtual-reality eyewitness scenario and virtual-reality perpetrator scenario. False-memory effects were mostly restricted to the acute-intoxication phase. Cannabis seems to increase false-memory proneness, with decreasing strength of association between an event and a test item, as assessed by different false-memory paradigms. Our findings have implications for how and when the police should interview suspects and eyewitnesses.
Effects of bilingualism on statistical learning in preschoolers
Authors: Verhagen Josje , Bree Elise de
Published: February 2020

Earlier work indicates that bilingualism may positively affect statistical learning, but leaves open whether a bilingual benefit is (1) found during learning rather than in a post-hoc test following a learning phase and (2) explained by enhanced verbal short-term memory skill in the bilinguals. Forty-one bilingual and 56 monolingual preschoolers completed a serial reaction time task and a nonword repetition task (NWR). Linear mixed-effect regressions indicated that the bilinguals showed a stronger decrease in reaction times over the regular blocks of the task than the monolinguals. No group differences in accuracy-based measures were found. NWR performance, which did not differ between the groups, did not account for the attested effect of bilingualism. These results provide partial support for effects of bilingualism on statistical learning, which appear during learning and are not due to enhanced verbal short-term memory. Taken together, these findings add to a growing body of research on effects of bilingualism on statistical learning, and constitute a first step towards investigating the factors which may underlie such effects.
Plural marking patterns of nouns and their associates in the world’s languages
Authors: Chen Rong
Published: February 2020

Plural marking reaches most corners of languages. When a noun occurs with another linguistic element, which is
called associate in this paper, plural marking on the two-component structure has four logically possible patterns: doubly
unmarked, noun-marked, associate-marked and doubly marked. These four patterns do not distribute homogeneously in the world’s
languages, because they are motivated by two competing motivations iconicity and economy. Some patterns are preferred over others,
and this preference is consistently found in languages across the world. In other words, there exists a universal distribution of the four
plural marking patterns. Furthermore, holding the view that plural marking on associates expresses plurality of nouns, I propose a
hypothetical universal which uses the number of pluralized associates to predict plural marking on nouns. A data set collected from a sample of 100 languages is used to test the hypothetical universal, by employing the machine learning algorithm logistic regression.
Engaging citizen translators in disasters
Authors: O’Mathúna Dónal P. , Escartín Carla Parra , Roche Proinsias , Marlowe Jay
Published: February 2020

Crisis situations, including disasters, require urgent decisions, often without sufficient resources, including
decisions about translating and interpreting. We argue that using citizen translators (i.e., translators without professional
translator training) in such contexts can be ethically justified when their preparation incorporates virtue ethics. Translation
potentially improves access to crucial safety information, and delivering such information is critical. We acknowledge several
ethical challenges with citizen translation based on our experience in humanitarian contexts, relevant literature, and discussions
with stakeholders engaged with our research consortium. Recourse to citizen translators has limitations, but we advance mitigation
measures through training to address the ethical challenges of providing translation services to linguistically diverse groups in
crisis. We propose virtue ethics as a framework for citizen translators to develop ethical decision-making skills and virtues. We
suggest virtue ethics training to prepare citizen translators for ethical challenges in the field.
Self-care as an ethical responsibility
Authors: Costa Beverley , Lázaro Gutiérrez Raquel , Rausch Tom
Published: February 2020

This article presents a pilot research project which examined the effectiveness of remote, formal support, provided by Colleagues Across Borders, for volunteer interpreters in an immigration detention support NGO. We consider the occupational stress and susceptibility to vicarious traumatization and burnout for interpreters working in sensitive (e.g., refugee) contexts. It is argued that it is an ethical responsibility to keep oneself fit and well-prepared to perform interpreting assignments to the highest standards. The project offered an intervention of remote support for non-professional interpreters in a detention center who needed professional advice and emotional relief. Analysis of pre- and post-intervention focus groups and questionnaires indicates an improvement in self-care, resilience, confidence, and effectiveness after three support sessions, suggesting that a remote yet personal support program can mitigate the effects of vicarious trauma and burnout for non-professional and professional interpreters working in ethically challenging refugee contexts.
Cell-intrinsic adrenergic signaling controls the adaptive NK cell response to viral infection
Authors: Diaz-Salazar Carlos , Bou-Puerto Regina , Mujal Adriana M. , Lau Colleen M. , von Hoesslin Madlaina , Zehn Dietmar , Sun Joseph C.
Published: February 2020

Natural killer (NK) cells are innate lymphocytes that exhibit adaptive features, such as clonal expansion and memory, during viral infection. Although activating receptor engagement and proinflammatory cytokines are required to drive NK cell clonal expansion, additional stimulatory signals controlling their proliferation remain to be discovered. Here, we describe one such signal that is provided by the adrenergic nervous system, and demonstrate that cell-intrinsic adrenergic signaling is required for optimal adaptive NK cell responses. Early during mouse cytomegalovirus (MCMV) infection, NK cells up-regulated Adrb2 (which encodes the β2-adrenergic receptor), a process dependent on IL-12 and STAT4 signaling. NK cell–specific deletion of Adrb2 resulted in impaired NK cell expansion and memory during MCMV challenge, in part due to a diminished proliferative capacity. As a result, NK cell-intrinsic adrenergic signaling was required for protection against MCMV. Taken together, we propose a novel role for the adrenergic nervous system in regulating circulating lymphocyte responses to viral infection.
β2-adrenergic signals downregulate the innate immune response and reduce host resistance to viral infection
Authors: Wieduwild Elisabeth , Girard-Madoux Mathilde J. , Quatrini Linda , Laprie Caroline , Chasson Lionel , Rossignol Rafaëlle , Bernat Claire , Guia Sophie , Ugolini Sophie
Published: February 2020

In humans, psychological stress has been associated with a higher risk of infectious illness. However, the mechanisms by which the stress pathway interferes with host response to pathogens remain unclear. We demonstrate here a role for the β2-adrenergic receptor (β2-AR), which binds the stress mediators adrenaline and noradrenaline, in modulating host response to mouse cytomegalovirus (MCMV) infection. Mice treated with a β2-AR agonist were more susceptible to MCMV infection. By contrast, β2-AR deficiency resulted in a better clearance of the virus, less tissue damage, and greater resistance to MCMV. Mechanistically, we found a correlation between higher levels of IFN-γ production by liver natural killer (NK) cells and stronger resistance to MCMV. However, the control of NK cell IFN-γ production was not cell intrinsic, revealing a cell-extrinsic downregulation of the antiviral NK cell response by adrenergic neuroendocrine signals. This pathway reduces host immune defense, suggesting that the blockade of the β2-AR signaling could be used to increase resistance to infectious diseases.
The technique of green belt bamboo constructions for highway noise effect reductions
Authors: Yasin I , Widaryanto LH , Sutrisno W
Published: February 2020

Noise affects human health and behavior. Significantly noise results in a decrease in quality of life. The World Health Organization states that noise pollution is the third most dangerous type of environmental pollution. Noise is seriously problematic in the health of the urban environment in the world. The city of Yogyakarta as a center of education in Indonesia has experienced a very large growth in urban numbers from various provinces in Indonesia. Noise testing is carried out in residential areas as well as being an education area in Yogyakarta. The tool used MU.04 / SLM / 04 (Sound Level Meter) shows a value of 62.1 dBA from the normal limit of 55 dBA. These results indicate that noise is disturbing. So it is necessary to do noise reduction along the crowded roads of vehicles with natural vegetation. Natural vegetation that is fast growing and capable of significantly reducing noise is bamboo. Bamboo vegetation can bind more carbon than tree plants. The green belt vegetation of bamboo plants will create a more comfortable, shady and beautiful environment in the city of Yogyakarta.
The motion control of three-phase motor using wireless communication: design and experimental works
Authors: Khairudin M , Kurnianto A , Yatmono S , Pramono H S , Ismara K I , Rohman J N
Published: February 2020

This study presents an investigation on the motion control of 3 phase motor using wireless communication. The wireless communication network used is Bluetooth which supports Arduino Uno, so that the motor rotation can be controlled via a smartphone. Control system is used to adjust 3 phase motor rotation. The method used in the development of 3 phase motor rotation control system are analysis of needs, control system design, development of systems, testing and performance measurement, and improvement the system. The results of this study indicate that the 3 phase motor rotation control system can work according to the design. When Bluetooth HC-06 module receives a signal from a smartphone via Bluetooth Electronics, then the signal is sent to Arduino Uno and forwarded to DC Relay and proceed to Omron MKP3-I Relay. When using 3.0 version of bluetooth, the farthest distance that can be received by the Bluetooth HC-06 module without an obstacle is 21 m, whereas if there is an obstacle, the signal can only be received in 16 m. Meanwhile, when using 4.1 version bluetooth, the farthest distance that can be received by the Bluetooth HC-06 module without an obstacle is 26 m, whereas if there is an obstacle, the signal can only be received in 19 m.
Water level control system using silicon controlled rectifier
Authors: Khairudin M , Parwantiningsih N , Panji E , Prayoga R
Published: February 2020

The purpose of this paper is to analyse a circuit of system water level control system using a Silicon Controlled Rectifier (SCR) as an active component. WLC circuit is composed of the SCR that is connected to the NPN transistor 2, the relay is connected with a lamp 5 watt / 220 volt electric motor as a simulator. Detection of water uses a sensor that consists of three sensors namely S1, S2, and S3 in the water tank. The experimental results indicate that when water touches the S3 then lights on / simulator motor works with Vbe transistor1 voltage at 0.4 volts, the voltage at the Vbe transistor2 0 volts and the voltage on the SCR Vak of 0.4 volts. The lamp to simulate an electric motor simulator will be off if S1 touched the water with transistor1 Vbe voltage at 0.4 volts, the voltage at the Vbe transistor2 of 1.8 volts and the voltage on the SCR Vak 0.75 volts.
Implementation of the simple additive weighting method in determining policy recommendations for higher education study programs based on alumni perceptions
Authors: Iswara H W W , Jati H
Published: February 2020

This study aims to develop a quality web-based Alumni Information System and make a reference for higher education study programs in the form of policy recommendation features with the Simple Additive Weighting method in the Information System. The feature is made so that the policies taken can be in accordance with the priority scale of their main problems. The result of this research and development is a product in the form of a quality web-based Alumni Information System and features policy recommendations for study programs.. This is proven by fulfilling the eligibility assessment criteria of the software version of the ISO 25010 model, which includes 5 aspects, namely functional suitability, reliability, performance efficiency, maintainability, and usability in this system. The policy recommendation features produced also have a high degree of accuracy, because the results bear a 96% similarity with the actual accreditation score.
The quality of vehicle exhaust gas emission in Sleman, Indonesia in 2019
Authors: Iskandar R , Sutiman  , Sukoco  , Arifin Z , Adkha N F , Rohman J N
Published: February 2020

Human uses vehicles for mobilization from one place to another but there is using vehicle such as exhaust gas emission. This study aimed to identify the quality of vehicle exhaust gas emission in Sleman, Indonesia in 2019. The study was descriptive quantitative research. The data of vehicle exhaust emission and vehicle specification were gathered by means of using gas analyzer, opacity meter, and observation. The data resource was 133 vehicles that use gasoline engine and diesel engine. The data analysis was comparison between the result of testing and regulation of vehicle exhaust gas emission in Special Region of Yogyakarta in 2010. The result of this study showed that rate of amounts of CO, HC, and Particulate Matter in Sleman, Indonesia in 2019 is less than regulation, although there were 13 of 133 vehicles that did not pass the test. Vehicle owners who do not pass the emission test are advised to carry out regular maintenance and use fuel according to ratio of the vehicle compression.
Workload measurement of batik workers at UKM batik jumputan Yogyakarta using RULA and NASA-TLX
Authors: Widiastuti R , Nurhayati E , Wardani D P , Sutanta E
Published: February 2020

A workload that exceeds the ability of workers or vice versa can cause a problem for workers. In this paper, we present a measurement of the physical and mental workload of workers at UKM Batik Jumputan Ibu Sejahtera Yogyakarta, and it has a purpose to find problems that occur so that recommendation for further improvement and problem-solving can be proposed. The physical workload measured by using RULA (Rapid Upper Limb Assessment) method, while the mental workload is measured by using NASA-TLX (NASA Task Load Index). This study succeeded in revealing the problems occur on workers such as there are differences in the level of worker risk which is caused by differences in age and differences in worker perceptions towards the dimensions of workload, and some workers experience high or very high levels of risk which is caused by improper work postures. Recommendations that can be done to solve the case are adding or replacing workers, increasing the workability of workers, adding work aids, changing work methods, and increasing workers’ understanding so that they can fill out questionnaires accurately.
Study of the virtual reality education and digitalization in China
Authors: Sun S Y , Peng L H
Published: February 2020

Human society has entered the era of information digitization. The rise and spread of electronic technology, digital media, the Internet, blockchain, Augmented Reality/Virtual and Reality, etc. affect all aspects of human society. At the end of the 20th century, the development and achievements of information technology constituted an important background for the existence of education, and promoted the development of online teaching, network examination, and other aspects, which made a big difference. However, digital technology has not been applied in primary education and secondary education. The existing teaching method is still taught in the form of textbooks and manual drawings. This research focuses on the application of digital technology in primary, secondary and advanced teaching in the digital age. This study conducts research and analysis on local schools and students through observation, experimental and comparative research methods, and compares the differences between ordinary teaching and digital teaching.Taking virtual reality technology as an example, breaking the impression that traditional teaching gives people can effectively implement diversified learning, cultivate students’ practical ability and innovative ability, also can improve their independent learning ability.
Development of teaching factory learning models in vocational schools
Authors: Diwangkoro E , Soenarto
Published: February 2020

Vocational education has an important role in the effort to create a workforce that has competencies that are in accordance with the characteristics of the needs of the industrial world. The learning process that emphasizes mastery of specific competencies requires an appropriate learning model. Teaching factory model is one of the solutions to prepare students to have competencies that are in accordance with the needs of industrial competence. Learning teaching factory developed can be integrated into the production unit organized by the school. This study is a literature study that reviews the development of teaching factory models in vocational schools. The results of the discussion concluded that teaching factory development was the main point where the process included the formation of management, production processes, marketing processes, and evaluation processes. Teaching factory developed is integrated with the production unit for the implementation of students practices.
Living within a One Planet reality: the contribution of personal Footprint calculators
Authors: Collins Andrea , Galli Alessandro , Hipwood Tara , Murthy Adeline
Published: February 2020

During the last 50 years, humanity’s Ecological Footprint has increased by nearly 190% indicating a growing unbalance in the human-environment relationship, coupled with major environmental and social changes. Our ability to live within the planet’s biological limits requires not only a major re-think in how we produce and distribute ‘things’, but also a shift in consumption activities. Footprint calculators can provide a framing that communicates the extent to which an individual’s daily activities are compatible with our One Planet context. This paper presents the findings from the first international study to assess the value of personal Footprint calculators in guiding individuals towards sustainable consumption choices. It focuses specifically on Global Footprint Network’s personal Footprint calculator, and aims to understand the profile of calculator users and assess the contribution of calculators to increasing individual awareness and encouraging sustainable choices. Our survey of 4245 respondents show that 75% of users resided in 10 countries, 54% were aged 18–34 years and had largely used the calculator within an educational context (62%). The calculator was considered a valuable tool for knowledge generation by 91% of users, and 78% found it useful to motivate action. However, only 23% indicated the calculator provided them with the necessary information to make actual changes to their life and reduce their personal Footprint. The paper discusses how and why this personal Footprint calculator has been effective in enhancing individuals’ understanding of the environmental impact of their actions, framing the scale of the problem and empowering users to understand the impacts of different lifestyle choices. Those individual-level and system-level changes needed to generate global sustainability outcomes are also discussed. Similar to other calculators, a gap is also identified in terms of this calculator facilitating individuals to convert new knowledge into action.
Greenhouse gas fluxes from reservoirs determined by watershed lithology, morphometry, and anthropogenic pressure
Authors: León-Palmero Elizabeth , Morales-Baquero Rafael , Reche Isabel
Published: February 2020

Human population growth has increased the demand for water and clean energy, leading to the massive construction of reservoirs. Reservoirs can emit greenhouse gases (GHG) affecting the atmospheric radiative budget. The radiative forcing due to CO2, CH4, and N2O emissions and the relative contribution of each GHG in terms of CO2 equivalents to the total forcing is practically unknown. We determined simultaneously the CO2, CH4, and N2O fluxes in reservoirs from diverse watersheds and under variable human pressure to cover the vast idiosyncrasy of temperate Mediterranean reservoirs. We obtained that GHG fluxes ranged more than three orders of magnitude. The reservoirs were sources of CO2 and N2O when the watershed lithology was mostly calcareous, and the crops and the urban areas dominated the landscape. By contrast, reservoirs were sinks of CO2 and N2O when the watershed lithology was predominantly siliceous, and the landscape had more than 40% of forestal coverage. All reservoirs were sources of CH4, and emissions were determined mostly by reservoir mean depth and water temperature. The radiative forcing was substantially higher during the stratification than during the mixing. During the stratification the radiative forcings ranged from 125 mg CO2 equivalents m−2 d−1 to 31 884 mg CO2 equivalents m−2 d−1 and were dominated by the CH4 emissions; whereas during the mixing the radiative forcings ranged from 29 mg CO2 equivalents m−2 d−1 to 722 mg CO2 equivalents m−2 d−1 and were dominated by CO2 emissions. The N2O contribution to the radiative forcing was minor except in one reservoir with a landscape dominated by crops and urban areas. Future construction of reservoirs should consider that siliceous bedrocks, forestal landscapes, and deep canyons could minimize their radiative forcings.
Combinatorial mappings of exclusion processes
Authors: Wood Anthony J , Blythe Richard A , Evans Martin R
Published: February 2020

We review various combinatorial interpretations and mappings of stationary-state probabilities of the totally asymmetric, partially asymmetric and symmetric simple exclusion processes (TASEP, PASEP, SSEP respectively). In these steady states, the statistical weight of a configuration is determined from a matrix product, which can be written explicitly in terms of generalised ladder operators. This lends a natural association to the enumeration of random walks with certain properties.

Specifically, there is a one-to-many mapping of steady-state configurations to a larger state space of discrete paths, which themselves map to an even larger state space of number permutations. It is often the case that the configuration weights in the extended space are of a relatively simple form (e.g. a Boltzmann-like distribution). Meanwhile, various physical properties of the nonequilibrium steady state—such as the entropy—can be interpreted in terms of how this larger state space has been partitioned.

These mappings sometimes allow physical results to be derived very simply, and conversely the physical approach allows some new combinatorial problems to be solved. This work brings together results and observations scattered in the combinatorics and statistical physics literature, and also presents new results. The review is pitched at statistical physicists who, though not professional combinatorialists, are competent and enthusiastic amateurs.
Uncertainty in classical systems (with a local, non-stochastic, non-chaotic origin)
Authors: Jeffrey Mike R
Published: February 2020

Decisions made by two (or more) independent players in a dynamical system can result in an indeterminable, yet non-stochastic, outcome. The mechanism can be presented as a thought experiment in which two pilots attempt to steer a spacecraft but, in stabilizing its pitch and yaw, lose all knowledge of its forward motion. It is useful to think of this pilots’ dilemma as a classical analogue of Schrödinger’s ‘cat in a box’ thought experiment. In both, the outcome of a life or death scenario is indeterminate until it is directly observed, but in place of the probabilistic radioactive source in Schrödinger’s problem, the discontinuous action of the pilots’ decisions create the classical indeterminacy. We discuss the wider implications of the phenomenon, such as predicting indeterminate scenarios in optimal transport or other network problems. The behaviour only becomes apparent when a system’s dynamics is sufficiently taken into account.
Utilization of Plastic Bottles Waste in Asphalt Concrete Mixture
Authors: Machsus Machsus , Basuki Rachmad , Mawardi Amalia Firdaus , Khoiri Mohamad , Sukobar  , Firdausi Moh. Firli
Published: February 2020

This paper deals with the innovation of road construction materials by the use of polyethylene terephthalate (PET) as asphalt mixtures. The PET was obtained from plastic bottles waste. The purpose of this research is to investigate the effects of the PET on Marshall parameters on asphalt concrete pavement. The wet method is used in this research. It means that PET plastic material is directly mixed into asphalt when the asphalt is heated, then aggregates are added. In this research, asphalt with penetration of 60/70 is used. Its optimum asphalt content (OAC) is 5.7 percent while The percentages of the added PET are 3 percent, 4 percent, 5 percent, 6 percent, and 7 percent of the asphalt by weight. The results show that the addition of PET plastic waste into the mixture has a significant positive effect on the Marshall parameters of asphalt concrete pavement. The addition of PET waste has been able to increase the value of other Marshall parameters, including Voids in Mix (VIM), Voids in Mineral Aggregates (VMA), Voids Filled with Asphalt (VFA), Flow, and Marshall Quotient (MQ). This research result will contribute to a significant outcome in emerging a sustainable material for road infrastructure.
Designing for Fire Safety and Ventilation in Warm Humid Climate, Case Study: Library Building of Universitas Atma Jaya Yogyakarta, Indonesia
Authors: Prasetya Ade
Published: February 2020

Fire safety is imperative for public buildings. Previous studies suggested that fire responsive building should limit the provision of oxygen to avoid hazardous flashover. However, due to warm humid climate, most Indonesian low-rise buildings are designed to maximize natural ventilation by constructing open stairs instead of fully enclosed stairwells. Therefore, those facts incite questions on how fire safety issues should be addressed in warm humid climate buildings. In response, this research employs a case study of five stories Library of Universitas Atma Jaya Yogyakarta, Indonesia. Furthermore, this paper introduces FDS+Evac to predict the behavior of fire spread toward occupants during egress. Research combines the mandates of fire safety along with natural ventilation by deploying two separate conditions: a) under fire incident, and b) daily (normal) condition. Under fire incident, the experiment measures egress safety indicators; degree of visibility, air temperature, and FED (Fractional Effective Dose), whereas for daily condition air velocity and its distribution are accounted. Experiments are conducted by devising three concepts: 1) existing, 2) passive protections; hung walls, enclosed stairwell, and smoke cavities, and 3) active protections; exhaust fans, air curtains, and sprinklers. Result shows that smoke, high temperature, and poor visibility are best solved by providing air cavities, whereas toxicity is reduced by increasing ventilation rate. Moreover, natural ventilation is satisfied since existing openings are unchanged.
Impact of Online Taxi Bikes Presence on Margonda Street, Depok
Authors: Rachman Heidy Octaviani , Chotib  , Kurniawan Kemas Ridwan
Published: February 2020

The online taxi bike gives some convenience to customers since its first launch. The demand for using online taxi bike from the public is quite high. Unfortunately, the high demand is not accompanied by the adaptation of urban space. Streets and circulation nodes begin to be filled with online taxi bikes which are hanging or waiting for passengers. This activity causes congestion and misuse of urban infrastructure. This development must be maintained by the government so that the presence of online taxi bike can run optimally without harming any parties. This study will examine how significant the impact of the presence of online taxi bike in urban areas is related to the use of space and urban infrastructure. This study uses qualitative method and is done by observing several strategic points in the city which were synthesized through the map. The research is complemented by literature studies and enriches the latest information through the city news. The results prove that the existence of online taxi bike can reach the blank spot of the city and complete the public access to the destination. Nevertheless, its existence can lead to conflict, especially with other public transportation services. On the passenger’s point of view, the presence of online taxi bike makes the trip easier. To reduce potential conflict, the meeting between online taxi bike community and conventional taxi bike can be arranged by the government.
Detecting Informal Settlement Development In Penjaringan Sub-District, North Jakarta, Indonesia
Authors: Putri  , Siti Delima Amanda RA , Chotib
Published: February 2020

Housing in urban areas has increased dramatically along with massive population growth and increasing urbanization flow. The pace of urbanization, according to the Indonesia Population Projection 2010 - 2035, Statistics Indonesia (2013) in the next 25 years will increase by an average of 72.5%. One of the urban problems by that circumstance is informal settlement. Jakarta government has created a policy about Kampung and Community arrangement implementation in Jakarta particularly for specific district. This research will concern the district in Penjaringan-North Jakarta with the main purpose of spatial analysis changing of informal settlements in 2013, 2016, and 2018, and an explanation of alteration the number of informal settlements by interview. The research used a qualitative approach. An overview of the fieldwork and interview process is included in relation to the discussions of reliability and validity. The quantitative process will be used by ArcGIS application with informal settlement. Satellite imagery is used to support this research. The images used include Spot 6 and Spot 7 imagery with three different years namely 2013, 2016, and 2018. The findings indicate that informal settlement has evolved gradually with major changes in North Jakarta.
The Use and Production of Space in the Provincial Office Area in Padang City
Authors: Gusnadi Muhammad Kevin , Setiadi Hafid
Published: February 2020

The use and production of space in the provincial government office area on Khatib Sulaiman Road Padang is are carried out by interested parties. The provincial government office area also shows non-conformity between spatial functions and zoning ordinance in Padang City. The method used in this study was a case study analysis with qualitative analysis technique by reducing data and triangulation technique. Data sources in this study were primary data and secondary data. The primary data were obtained from the results of direct interviews and interviews that were published in print media. Meanwhile, the secondary data in this study were obtained form statutory regulations, local regulations, minutes of meetings, and academic scripts. The results of this study indicated that the use of space in the provincial government office area on Khatib Sulaiman Road conducted by the Padang City Government was by granting permissions for the construction of modern and largest shopping center of Transmart, for investors in land tenure and economic benefits, as well as for surrounding communities to use public space for their economic activities. The use of space was not in accordance with the zoning ordinance in Padang City. This condition also had an impact on the socio-economy aspect in the surrounding areas.
Review of the Methods Required in Measuring the Sustainability of Infrastructure Projects
Authors: Wibowo R A , Utomo C
Published: February 2020

Rapid growth in an area is indicated by the increasing of the population proportion, thereby the need of good infrastructure increases. The sustainable infrastructure is a crucial part of the nation development with considering the economic, social, and environment aspects and works to balance all these three aspects. Therefore, the rapid development is expected to contribute in the increasing of economic growth and social welfare without damaging the surrounding environment. Recently, a lot of researches has been discussing about sustainable infrastructure using various methods, it is important to conduct a study of what methods are used in previous researches. By knowing these various methods, it is expected to provide method recommendations for further research in the field of sustainable infrastructure. This paper aims to find out what methods are used to determine the level of sustainability in infrastructure projects. The method used is the literature review of 20 relevant international papers from year of 2007 to 2019. Based on previous researches, the result of this study indicates that there are variety of methods used to determine the level of infrastructure projects’ sustainability. This paper shows AHP is the most widely used because it has some advantages.
Resilience Of Flood Disasters In The Wanggu Watershed, Kendari City
Authors: Saleh Tri Rano M. , Setiadi Hafid
Published: February 2020

Floods are disasters that often hit cities in Indonesia. Even in certain cities, flooding is a recurring disaster. Kendari City is a service and trade city in Southeast Sulawesi Province which has a vulnerability to repeated flood disasters in urban areas including 10 Districts, which are still included in the Wanggu River Basin. This urban area experiences the phenomenon of urbanization, namely population growth and high land use change and land ownership transfer. The development of residential areas as a consequence of population growth, is also a cumulative factor triggering the flood disaster in the Wanggu River Basin. This study aims to determine the development of the expansion of flood areas in the Wanggu watershed in a time series (period 2007 - 2017) and how they impact the development of Kendari City. This research will also investigate the impact of land use change and the impact of urban population growth on the expansion of flood disasters. The method used is the collection of qualitative and quantitative data, observation, and verification in the field, to map analysis using High Resolution Satellite Imagery to determine changes in land use in the Wanggu watershed area. The expected outcome of this research is the mapping of areas that are vulnerable to the risk of flooding, especially in urban areas to the resilience strategy chosen as one of the city’s resilience efforts against disasters.
The Contribution of Islamic Development Bank (IDB) in Improving Educational Infrastructures in Indonesia: A Sustainable Development Goals (SDGs) Perspective
Authors: Hannase Mulawarman , Arifah Fatwa , Annas Suwardi
Published: February 2020

Islamic Development Bank (IDB) was largely known but in the context of its role in infrastructure development in Indonesia it has not been comprehensively socialized in various elements of Indonesian society. This article aims to explore the IDB contribution to the development of Educational infrastructures and its impact to the quality of human resources in Indonesia. This research is based on the fact that for a long time, IDB has provided a huge contribution to the various educational institutions in Indonesia, especially the university campuses. Sustainable Development Goals (SDGs) theories approach is adopted to explore more deeply the extent to which educational infrastructure plays a role in social and environmental life in Indonesia. This research is a qualitative study and the data used are field data obtained from infrastructure projects that have been built by IDB in Indonesia. The findings of this study are that the role of IDB is significant in improving Indonesia’s infrastructure and sustainable development. This significant role should be understood to the extent of its effectiveness and how it can contribute to the sustainable development of Indonesia.
Canyon effects in urban configurations: tropical context study
Authors: Yola Lin
Published: February 2020

The increase of the Urban Heat Island (UHI) is a continuing phenomenon in dense cities. Technically, the building of heat gain generated from modified solar radiation in tropical urban spaces requires the scientific solution. The investigation on the behavior of urban microclimate, especially solar radiation in the urban canyon, was comprehensively investigated by early urban energy studies. However, the solar radiation trapping effect as the behavior of solar radiation in different type of urban configurations is still unclear. This study, therefore, aims to investigate the impact of urban configurations on the solar radiation performance in Kuala Lumpur tropical context. By using ENVI-met V3.1, this study simulates four urban configurations situated in two scenarios of canyon directions; East-West and South-North. The results recorded that the short wave and long wave solar radiation varies in a different type of urban configurations. It concludes that besides the Sky View Factor (SVF) and Height to Width (H/W) aspect ratio, the direction of urban canyon towards the exposure of the source of solar radiation significantly influences the solar radiation trapping effect. This finding will be a significant reference to strategies for the urban configuration to improve the microclimate in the urban spaces and mitigating climate change.
A study of water quality modelling with the artificial neural network method in Surabaya river
Authors: Haribowo Riyanto , Dermawan Very , Fitrina Halita
Published: February 2020

Decreasing river water quality due to the environmental conditions around the river can cause changes in the value of river benefits and endanger the environment. Thus, it becomes necessary to improve river water quality management by monitoring water quality. The purpose of this study is to model predictions of water quality conditions. The method is by analysing the parameters of water quality (BOD, COD, DO, pH, temperature) influenced by rainfall, catchment area, and land use. Data analysis was performed by the artificial neural network (ANN) method, using the Matlab R2014b software. In the process of network development, the most effective model was obtained with a variation of 75% training data with 5 hidden layers and a maximum epoch of 2000. From the results of the model, the relative errors (RE) for BOD, COD, DO, pH, and temperature were found to be 7.80%, 6.33%, 6.83%, 1.92% and 1.05% respectively, with an overall average of 4.79%. Because this RE value is quite small and less than 5%, it can be concluded that the artificial neural network method is quite effective for monitoring water quality conditions in the study area.
Assessment on the efficiency of sediment flushing due to different timings (a case study of Mrica reservoir, central Java, Indonesia)
Authors: Legono Djoko , Hidayat Fahmi , Sisinggih Dian , Tri Juwono Pitojo
Published: February 2020

The issue of the sedimentation problem of reservoirs has been growing significantly during the last two decades, particularly in areas where human activity increases pressure on the land. However, some researchers believe that such situation is also (partly) affected by the significant shift in hydro-meteorological conditions, accompanied with higher rainfall erosivity and hence an increase in land erosion. Various efforts have been suggested to control the erosion process, whether by sediment control at the catchment area or placing a ground sill and/or check dam in the stream. However, additional activities to remove sediment from reservoirs through sluicing, flushing, and dredging are often still necessary. This paper deals with the evaluation of the effectiveness of flushing at different timings. The results showed that the uncertainty of the sedimentation process and the hydrograph inflow characteristics are dominant factors affecting the problems. A further recommendation is to determine the procedure for establishing reliable advance timing that is considered most efficient for carrying out the flushing activities.
The Influence of Various Materials to the Void Ratio of Pervious Concrete
Authors: Arifi Eva , Nur Cahya Evi , Setyowulan Desy
Published: February 2020

Pervious concrete is an alternative to reduce surface runoff in urban areas. To examine effect of different materials on the void ratio of pervious concrete is studied in order to evaluate the efficiency of pervious concrete solving surface runoff problems. Various materials have been used in mix proportion of pervious concrete. Different size of aggregate, the use of supplementary material for cement, recycled aggregate as an alternative to replacing natural coarse aggregate, and fiber usage were utilized in a series of experiment to evaluate the value of void ratio that greatly affects the effectiveness of pervious concrete to cope surface runoff in urban areas. The result shows that the size of aggregate strongly affected the void ratio of pervious concrete, while the effect of the use of supplementary material for cement in pervious concrete to its void ratio was not significant. However, pervious concrete made of recycled aggregate proved to have a higher void ratio compared to pervious concrete using natural coarse aggregate. When utilizing fiber in mix proportion of pervious concrete, the higher rate of fiber reduced its void ratio.
Analysis using the F. J. Mock Method for calculation of water balance in the Upper Konto Sub-Watershed
Authors: Chandrasasi Dian , Montarcih Limantara Lily , Wulan Juni Riska
Published: February 2020

A study of water balance in the Upper Konto sub-watershed was carried out to determine the potential for water availability and its use in the multisector water needs. Rainfall was converted into discharge using the F. J. Mock method, compared with the observed discharge, and calibrated with the Relative Error, Root-Mean-Square Error (RMSE), Nash-Sutcliffe Efficiency (NSE), and Correlation Coefficient (R). The potential for water availability was calculated based on an 80% dependable flow using the Weibull probability method with an amount of 22.41 m3/sec, equivalent to 706.622 million m3/year. The amount of water demand within a period of 25 years in scenario 1 (calculated based on data and increasing according to the growth rate) is 95.090 million m3/year, while in scenario 2 (based on the assumption that domestic, non-domestic, and industry demand increased while fishery, agriculture, and livestock demand remained constant) is 93.419 million m3/year. The results of the water balance analysis showed that the potential for water availability is sufficient for all multisector water needs, or indicates a surplus condition for 25 years (2017-2042).
Indicators of Index for Polder Services use Partial Least Square and Personal Component Analysis Method
Authors: Noviadriana Dina , Andawayanti Ussy , Juwono Pitojo T. , Sisinggih Dian
Published: February 2020

Every year downstream area such DKI Jakarta city suffers from flood and it could disturb the economic life. High sea level, increasing number of rains, land subsidence, and conversion land use into built up area around upstream caused some damage flood in downstream area. To minimize the impact, the government of DKI Jakarta Province already constructed 36 polders system since 1973 and 11 polders planned to construct. Some of those polders have retention pond and other components to support the system. Those built up polders needs routine maintenance according to its budget in order to keep its function. Guideline to allocate budget for each polder’s yearly maintenance not yet available. This research analyses indicators that give impacts to polder’s services by using PLS and PCA Method, which based on 160 samples of questionnaire and result of site survey. As an object of this research, 8 polders in DKI Jakarta which have retention pond, pumps, water gate and trash rack are chosen. They are Polder Grogol, Polder Teluk Gong, Polder Melati, Polder West Setiabudi, Polder Pulomas, Polder Tomang, Polder North Sunter and Polder South Sunter. As a result, there are 23 indicators that affected in service index of polder system.
In situ permeability and shape factor of flat-base recharge wells using variations of porous walls
Authors: Rachmawati Azizah , Suhardjono  , Andawayanti Ussy , Tri Juwono Pitojo
Published: February 2020

Shape factors of recharge wells that have existed in various forms can be seen in terms of the absorption and the value. The development of existing recharge wells considers their various shapes and values. The condition factor 5b, according to Dachler (1936) and Sunjoto (2002), needs to be examined. The shape factor is the coefficient of dimension planning, which takes into account the perimeter, area, volume, and water level of the recharge well. The permeability coefficient is very important. An experiment on the field involved three recharge well models in a flat base impregnation, testing the porous wall (L) and well radius (R). The aim of this research is to investigate the shape factor values of the three recharge well models whose upper walls are made of concrete pipes with diameters of 0.6 m, 0.8 m, and 1.0 m. The height of the porous wall varies from 0.3 m, 0.7 m, to 1.0 m. In this study, the results showed that the shape factor simultaneously influenced the height of the porous wall (F = 22.49 > F table = 5.59; P < 0.05). However, there is a positive correlation between the change in the shape factor and the height of the porous wall on a flat base for the recharge wells (R2 = 0.79).