bluuebunny/crossref_metadata_2025_split huggingface dataset:
Quantum codes from neural networks
Authors: Bausch Johannes , Leditzky Felix 
Published: January 2020

Abstract
We examine the usefulness of applying neural networks as a variational state ansatz for many-body quantum systems in the context of quantum information-processing tasks. In the neural network state ansatz, the complex amplitude function of a quantum state is computed by a neural network. The resulting multipartite entanglement structure captured by this ansatz has proven rich enough to describe the ground states and unitary dynamics of various physical systems of interest. In the present paper, we initiate the study of neural network states in quantum information-processing tasks. We demonstrate that neural network states are capable of efficiently representing quantum codes for quantum information transmission and quantum error correction, supplying further evidence for the usefulness of neural network states to describe multipartite entanglement. In particular, we show the following main results: (a) neural network states yield quantum codes with a high coherent information for two important quantum channels, the generalized amplitude damping channel and the dephrasure channel. These codes outperform all other known codes for these channels, and cannot be found using a direct parametrization of the quantum state. (b) For the depolarizing channel, the neural network state ansatz reliably finds the best known codes given by repetition codes. (c) Neural network states can be used to represent absolutely maximally entangled states, a special type of quantum error-correcting codes. In all three cases, the neural network state ansatz provides an efficient and versatile means as a variational parametrization of these highly entangled states.
Magnetic phases of orbital bipartite optical lattices
Authors: Saugmann Pil , Larson Jonas 
Published: January 2020

Abstract
In the Hamburg cold atom experiment with orbital states in an optical lattice, s- and p-orbital atomic states hybridize between neighboring sites. In this work we show how this alternation of sites hosting s- and p-orbital states gives rise to a plethora of different magnetic phases, quantum and classical. We focus on phases whose properties derive from frustration originating from a competition between nearest and next nearest neighboring exchange interactions. The physics of the Mott insulating phase with unit filling is described by an effective spin-1/2 Hamiltonian showing great similarities with the J
1–J
2 model. Based on the knowledge of the J
1–J
2 model, supported by numerical simulations, we discuss the possibility of a quantum spin liquid phase in the present optical lattice system. In the superfluid regime we consider the parameter regime where the s-orbital states can be adiabatically eliminated to give an effective model for the p-orbital atoms. At the mean-field level we derive a generalized classical XY model, and show that it may support maximum frustration. When quantum fluctuations can be disregarded, the ground state should be a spin glass.
Correction factors for primary beta dosimetry
Authors: Behrens R 
Published: January 2020

Abstract
Several correction factors for primary beta dosimetry in radiation protection have been determined by means of measurements and simulations for both the well-known Böhm primary standard extrapolation chamber developed at PTB (which has been commercially available for a long time) and a new primary standard extrapolation chamber also developed at PTB. The correction factors k
el for electrostatic attraction of the entrance window due to the collecting voltage and k
sat for ionisation collection losses due to ionic recombination have been measured. The following correction factors have been determined by simulations for normal (0°) as well as oblique (15°, 30°, 45° and 60°) radiation incidence: k
ba for backscatter from the collecting electrode, k
pe for perturbation by the chamber’s side walls, and k
ra, k
ac and k
di for inhomogeneity inside the collecting volume. The latter three have been combined to k
ih. Six more correction factors adopted from the literature are described to complete the necessary corrections. A comparison with values given in ISO 6980-2:2004 (for 0°), all determined at that time by means of measurements, is shown as well as the application of the new factors to measured data. The newly determined correction factors are ready to be implemented in an updated version of ISO 6980-2.
Why do people ignore the ‘plastic bag diet’ campaign? an Indonesian consumers perspective
Authors: Wijaya B S , Agustini P M , Hanathasia M , Putri D M , Sutawidjaya A H 
Published: January 2020

Abstract
As an effort to minimize the climate change impact, reducing plastic waste is urgently needed. Unfortunately, so far this effort has not yielded maximal results, even though the ‘plastic bag diet’ campaign has been intensified. This paper interrogates the reason why Indonesian consumers/shoppers disregarded and did not even care about the campaign. Using Focus Group Discussion, the authors discussed with two groups of different shoppers, namely the regular shoppers and non-regular shoppers. The discussion is divided into three topics. First, the habit of using plastic shopping bags. Second, awareness of avoiding the use of plastic shopping bags. Third, the possibility to adopt an eco-friendly lifestyle. The results show that both regular and non-regular shopper groups do not mind paying 200IDR for plastic shopping bags because it is financially not detrimental, and they are reluctant to bring their shopping bags. Besides being troublesome, some of the participants also considered it old-fashioned. However, non-regular shoppers tend to have an awareness of environmental preservation better than regular shoppers. Therefore, we conclude several factors that cause consumers to ignore ‘plastic bag diet’ campaign, including functional, social, cultural, and structural reasons.
Biotic resistance and rhizobacteria on the growth and yield of selected red onion (Allium ascalonicum L.) variety
Authors: Maryani Y , Rogomulyo R , Widiatmi S , Widata S 
Published: January 2020

Abstract
Red onion has high nutrient and economic value. Onion can grow in both dry and wet season. Currently, we face climate drawbacks such as long rainy seasons and a short dry season due to climate change. This research aims to study the affects of rhizobacteria on the three red onion yield varieties. The research was conducted in Balecatur, Gamping, Sleman, Yogyakarta, Indonesia. The research used a Split Plot Design. The main factor was red onion variety, namely Bima, Biru and Thailand. The sub-factor was Rhizobacteria with a concentration of 0%, 0.75% and 1.5%. The data were analyzed using variance analysis with 5% significance level. The results showed that rhizobacteria increases the growth rate and tolerance index in red onion. Rhizobacteria does not increase yield and red onion yield index. Biru variety was as good as Thailand variety in terms of the number of bulb per plant, weight bulb per plant and yield. Thailand and Biru varieties are suitable in rainy season. Bima variety has the lowest number of bulb per plant, weight bulb per plant, growth rate, yield and yield index.
The application of Refuse Derived Fuel (FDR) from commercial solid wastes to reduce CO2 emissions in the cement industry: a preliminary study
Authors: Kristanto G A , Rachmansyah E 
Published: January 2020

Abstract
One of the issues faced by several cities in Indonesia is the management of their increasing generation of solid wastes. One of the largest waste generators include the commercial area, such as malls, restaurants, office buildings, motels, and others, which need to manage their wastes via more sustainable routes such as the application of these wastes as refuse derived fuel to mitigate the climate change causing by fossil fuel. This study aims to analyse the potential use of wastes generated from commercial areas such as refuse-derived fuel (RDF) in the cement industry for reducing CO2 emissions. Five variants of RDFs were developed on the basis of commercial solid waste compositions. Results revealed that RDF variation 3 comprising 20% paper and 80% plastics exhibits the highest energy of 6272 kcal/kg. As preliminary study, cement industry Y is investigated as an example. During the simulation of the clinker production, RDF variation 3 is combined with petroleum coke, coal, fuel oil, or natural gas. Compared to other fuels, the combination of petroleum coke and RDF variation 3 exhibits the best CO2 reduction of 2, 155.3 106 Kt CO2/year, with the total annual clinker production of 12.64 million tons. These findings should aid policy and decision makers of waste management service provision and industry to design financially viable management systems based on resource recovery options.
Rapid assessment of river watershed health and vulnerability level for restoration strategy: a study of river systems in Indramayu, West Java, Indonesia
Authors: Setyoasri Y P , Prastica R M S 
Published: January 2020

Abstract
Climate change triggers a vulnerable level of a watershed. The assessment of watershed was conducted in rivers in Indramayu. Indramayu has terrible water quality due to several factors. The research aims to state the vulnerability level of Indramayu sub-watershed. The research analyzed several locations: Cimanuk sub-river and Muara Kali Prajagumiwang. The river health and vulnerability were assessed according to physical, land use, and water quality indicators in rivers. The other indicators are proposed according to the previous studies to enrich the future study result. The study finds out the possible future indicators: watershed landscape, hydrology, stream geomorphology, aquatic habitat, and biological conditions. The research uses a watershed vulnerability sequential analysis to obtain the result. The study analyzes the parameter, problems, and triggering factors from the sites. The assessment of stream corridor involves the rare species, sensitive fishes, macro-invertebrates availability, fish movement, normalization, water quality, river-land interaction, water spring, and geomorphology. The research concludes that rivers in Indramayu indicate fair and restorable impacted sub-watershed characteristics. This condition indicates that the streams have bad water quality, but they still could support a sustainable environment if it restored.
Agronomic and social strategies on food crop production for climate change adaptation at Palu Valley, Central Sulawesi, Indonesia
Authors: Rahayu H S P , Suwitra I K 
Published: January 2020

Abstract
Climate change has become a threat to the agricultural sector, especially at the farmer level. Adaptation to climate change is now gaining wide attention; however, farmers still have the low adaptive capacity and do not have the essential technology for adaptation to climate change. Such adaptation to climate change is necessary to reduce the risk of losses in the agriculture sector. The study aims to know the perception and adaptation strategies to climate change on farmer level especially in food crop production, then correlated it with government recommendation strategies. A survey had been conducted to farmers in Palu Valley, Central Sulawesi, and a descriptive analysis approach is employed in this research. The findings show that there are challenging issues such as the socialization of meteorological information, a planting calendar application, the dissemination of essential technologies for climate change, and also social aspects such as insurance and indigenous knowledge. A number of recommendations were proposed to ensure the more efficient and beneficial use of technology recommendations in coping with climate change in food crop production. 1) Improving farmer’s knowledge by spreading climate change technologies dissemination. 2) Providing user-oriented features to increase farmer awareness and responses. 3) Enabling different institutions and stakeholders for programs cooperation in coping with climate change challenges.
Understanding the concept of community empowerment in Argorejo Village Sedayu Bantul Regency Indonesia
Authors: Indardi  
Published: January 2020

Abstract
This study aims to describe the meaning of community empowerment concept of mushroom farmers. The study was conducted in Lestari Makmur farmer group using a qualitative paradigm approach, with qualitative descriptive method. The information is obtained through in-depth interviews using a question guide. Eight informants, the leader and members of the farmer group involved in the cultivation of the mushroom were interviewed. The finding showed that there was a diversity in understanding the meaning of the concept of community empowerment among the mushroom faarmers. Farmers understand community empowerment concept with their own perceptions. The group leader tends to interpret community empowerment comprehensively (Comprehensive Meaning), and group members interpret the concept of community empowerment in a more diverse manner (Comprehensive Meaning, Partial Meaning, and Empty Meaning). Community empowerment through mushroom cultivation while providing solutions to deal with global climate change through the business of agriculture using microclimateIt is suggested to conduct socialization about the concept of community empowerment by competent parties (espeacially the government) when starting the activities of community empowerment in a farmer group.
Effects of mulch on growth and yield of garlic bulbils at various fertilizing doses
Authors: Dinda W P , Triharyanto E , Samanhudi  
Published: January 2020

Abstract
Climate change hurts garlic cultivation. Appropriate technology needs to be created to get good quality tubers, one of them using bulbils. Bulbils are tubers formed from other parts of a plant. In garlic, bulbil grows at the stem, with very small embryo size hence it is necessary to control the environmental conditions in the nurseries. The study aimed to examine the garlic cultivation model using tubers with mulch treatment and a combination of fertilization. Sealing and mulching were conducted to avoid direct solar heat and to control the soil microclimate, respectively. The study used a split-plot design consisting of main plots with mulching and without mulching. The sub-plots were by applying the combination of organic and inorganic fertilizers at several levels, namely: Farmer Recommendation/P1 (50% Organic + 100% Inorganic), P2 (75% Organic + 25% Inorganic), P3 (50% Organic + 50% Inorganic), P4 (25% Organic + 75% Inorganic) and P5 (100% Organic). The results showed there are interactions between mulching and a combination of fertilizers on plant height and root length. Mulch application can stabilize soil temperature and provide better results on growth and yield, but the combination treatment of fertilization has no significant effects on growth variables and yields.
Correlation of agronomic and leaf traits to rice yield among Huanghuazhan variety derived lines
Authors: Susanto U , Barokah U , Ali J 
Published: January 2020

Abstract
Green Super Rice Project had identified the Huanghuazhan as a high yielding rice variety which relatively adaptable to global climate change since it is stable either under optimum or limited input condition. Correlation of agronomic and leaf treats is important to determine yield, which is needed even under global climate change condition. This study aimed to dissect the correlation among agronomic and leaf traits of the lines to the yield. The lines had been imported to Indonesia and tested under irrigated condition during dry season of 2013 in ICRR experimental station in Sukamandi, Subang, West Java, Indonesia. The results showed HHZ 8- SAL12-Y2-DT1 had a higher yield (8.70-ton ha-1) than Huanghuazhan (7.01-ton ha-1), hence prospective for further testing. Correlation analysis, however, showed out of 21 traits being observed, only filled grain/panicle having significant correlation with yield. Leaf traits such as length, thickness, and angle of flag leaf, second, and third leaf showed insignificant correlation to yield. Some agronomic traits seem to compensate each other in supporting maximum yield capacity. Developing rice plant with high filled grain per panicle with bigger grain size without reducing productive tiller number may become the ideal ideotype for high yielding rice variety.
Potential development of oyster mushrooms in the lowlands of Bantul Regency, Special Region of Yogyakarta, Indonesia
Authors: Istiyanti E , Fivintari F R , Syaftiana M 
Published: January 2020

Abstract
Oyster mushroom cultivation is best done in the highlands, while Bantul Regency is included in the lowlands with an altitude of 0 - 500 meters above sea level with an average annual temperature of 300 C. Climate change is causing the development of oyster mushrooms farming in the lowlands requires special treatment in the production process. This study aims to analyze the costs, income, profits, and feasibility of oyster mushroom farming in Bantul Regency. The determination of the location of the study was done purposively. The respondents were determined using the census method according to bag logs ownership. A total of 21 farmer respondents were classified into three groups, namely Group 1 (farmers own < 1, 000 bag logs), Group 2 (1, 001-3, 000 bag logs), and Group 3 (> 3, 000 bag logs). The feasibility of oyster mushroom farming was analyzed using Revenue Cost Ratio (R/C), capital and labour productivity, respectively. The results showed farmers in group 3 had the largest revenue, income and profit. Oyster mushroom farming is feasible because the R/C >1, capital productivity > capital interest, and labor productivity > labor wages. Bantul Regency has the potential to develop oyster mushrooms even though it is located in the lowlands.
Estimation of greenhouse gas emissions from solid waste management and wastewater treatment in the Nizam Zachman Fishery Port, Jakarta, Indonesia
Authors: Kristanto G A , Pratama M A , Rahmawati D F 
Published: January 2020

Abstract
Nizam Zachman is a modern fishery port located in Muara Baru, Jakarta, Indonesia. Some of its facilities include a temporary collection of solid waste and wastewater treatment plants, emitting greenhouse gases that lead us to climate change by warming up the global temperature. In this study, greenhouse gas emissions are estimated from these two facilities by using the IPCC Tier 1 method and emission factor calculation. By estimating greenhouse gas in this area, it will give knowledge and convicing to make greenport as a consideration of the strategy to reduce greenhouse gas emission, starting from waste and wastewater management. Solid waste treatment comprises open dumping, recycling, and transportation of wastes to the temporary landfill in this area. With a total waste of 5, 411.4 tons/year, greenhouse gas emissions from open dumping and transportation are estimated to be 14, 340.2 and 22.3 tons CO2eq/year, respectively. Meanwhile, recycling activities contribute to 143 tons CO2 eq/year of greenhouse gas emissions. In addition, the estimated greenhouse gas emissions include emissions from wastewater treatment, discharge of industrial wastewater to waterways via the drainage system, and domestic wastewater treatment by using a septic tank. In addition, greenhouse gas emissions from wastewater treatment, drainage system, and septic tanks are estimated to be 2, 830; 108.7; and 3.2 tons CO2 eq/year, respectively. Based on the estimation, solid waste treatment generates 83% of the total greenhouse gas emissions, while wastewater treatment generates only 17% of the total emissions. Herein, composting, increase of recycling, and utilization of methane are recommended to reduce the greenhouse gas emissions from waste management.
Rice tolerance variation to long-term stagnant flooding and germination ability under an-aerobic environment
Authors: Rumanti I A , Sitaresmi T , Nugraha Y 
Published: January 2020

Abstract
Erratic and unpredicted weather due to climate change cause flood in agriculture production area especially when it has poor drainage system. Flood during early season of crop establishment will induce anaerobic germination (AG) in the area where farmers practiced a direct seeding method, and the flood can be prolonged as a stagnant flooding (SF) stress if the water could not recede. AG and SF stress not only will affect the crop establishment but also reduce grain yield. The study on selection of tolerant lines to AG and SF based on phenotypic performance was conducted. We identified a total of 22 rice lines had ability to germinate under low oxygen after initial screening under 10 cm of flooding for 2 weeks. The survival rate was 82.5 – 100% with seedling growth rate about 0.9 – 1.5 cm per day. Eight lines had better performance and out yield the best check of SF. SF was increased the plant height, but reduce the panicle length and unfilled grain per panicle. Aerenchyma areas of tolerant variety were bigger than a sensitive variety. The results of study will increase the chance to developing of flood tolerant rice varieties to anticipate the climate change.
Blue economy policy for sustainable fisheries in Indonesia
Authors: Sari D A A , Muslimah S 
Published: January 2020

Abstract
Climate change has detrimental impacts on the ocean such as ocean acidification, the occurrence of extreme weather, increasing frequency of storms, and sea level and temperature rise, which will threaten the marine ecosystem existence and threaten the marine economic potential. Indonesia, with 6.4 million km2 area of waters, hold enormous fisheries potential wealth and enormous potential economic value. Data from the Marine and Fisheries Ministry notes that the marine economic potential reaches IDR 3000 trillion and there only IDR 291.8 trillion of the total potency that already gained. Sustainable fisheries development must be in accordance with the development principles that benefit the present generation but still pay attention to sustainability for future generations. Blue economy policies and programs become the right and effective approach for marine development to encourage optimal and sustainable utilization and exploitation of fisheries resources. This research is a legal research by using statute approach to relevant legal materials. This study aims to integrate the blue economy principle in to marine and fisheries policies and reconstruct the existing policies. The result of this study is a proposed model of blue economy-based policy to get a sustainable national marine and fisheries management.
Socio-economic vulnerability and losses of flood in Lampung, Indonesia
Authors: Chayyani N R , Gravitiani E , Suryanto  
Published: January 2020

Abstract
This study aims to determine the distribution of flood locations and the level of socio-economic vulnerability of the community and total losses due to flood disasters in Lampung, Indonesia. Climate change causes extreme weather. Thus, the rainfall increases from the previous year. This study utilizes the Livelihood Vulnerability Index (LVI) and Livelihood Vulnerability Index - the Intergovernmental Panel on Climate Change (LVI-IPCC) to determine socio-economic vulnerability. The losses due to flood were analyzed by the ECLAC method (the Economic Commission for Latin America Caribbean). The level of vulnerability of the Lampung community to flood is expected to be classified as high based on the LVI and LVI-IPCC scales. The community suffered economic losses due to flood that occurred in Lampung.