bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial dynamics of higher order rock-paper-scissors and generalisations
Authors: Griffin Christopher , Feng Li , Wu Rongling 
Published: April 2024

Abstract
We introduce and study the spatial replicator equation with higher order interactions and both infinite (spatially homogeneous) populations and finite (spatially inhomogeneous) populations. We show that in the special case of three strategies (rock–paper–scissors) higher order interaction terms allow travelling waves to emerge in non-declining finite populations. We show that these travelling waves arise from diffusion stabilisation of an unstable interior equilibrium point that is present in the aspatial dynamics. Based on these observations and prior results, we offer two conjectures whose proofs would fully generalise our results to all odd cyclic games, both with and without higher order interactions, assuming a spatial replicator dynamic. Intriguingly, these generalisations for

N
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5

strategies seem to require declining populations, as we show in our discussion.
Study of liquid smoke toxicity cocoa shell with different purification methods
Authors: Budaraga I K , Putra D P 
Published: April 2024

Abstract
Cocoa shell is an underutilized agricultural trash. Cocoa shells can be used to make liquid smoke and cocoa charcoal as basic materials. The charcoal made from cocoa pod husks can be used as a dye adsorbent. The study will look at the effects of different purification and filtering procedures on the toxicity of liquid smoke from cocoa husks in order to determine which purification process is best for making liquid smoke from cocoa husks that is not harmful. The results demonstrated that several procedures for purifying and filtering liquid smoke from cocoa peels were non-toxic. Cocoa shell is an underutilized waste from plantations. Cocoa shells can be used as raw materials in the manufacture of liquid smoke and cocoa charcoal. The burning of cocoa pod husks charcoal can be used as a dye adsorbent. The research intends to observe the different purification and filtering methods on the liquid smoke toxicity from cocoa husks to find out which purification method is more appropriate for liquid smoke from cocoa husks so that it is not toxic. The results showed that the purification and filtering of liquid smoke from cocoa peels using various methods were non-toxic. The best approach with the highest LD50 value is zeolite purification, which has an LD50 value of 3019.95 ppm. The activated charcoal technique, activated charcoal + zeolite method, and distillation method were then used, with LD50 values of 2,951.21 ppm, 2,398.83 ppm, and 1,412.54 ppm, respectively.
Lethal competition on joint predators during suppressing brown planthopper population
Authors: Syahrawati M , Hidayat R , Arneti  , Hidrayani  
Published: April 2024

Abstract
Joint predator is one technique to control brown planthopper (Nilaparvata lugens) in the rice field by combining two or more predator species having a positive interaction. This study aims to determine the effect of joint predator density (Pardosa pseudoannulata and Phidippus sp) on competition and its predatory rate in suppressing the N.lugens population. The study used a completely randomized design (CRD) by combining P. pseudoannulata or Pp (1,2,3 individuals) and Phidippus sp or Ps (1,2,3 individuals) to become Pp1Ps1, Pp1Ps2, Pp1Ps3, Pp2Ps1, Pp2Ps2, Pp2Ps3, Pp3Ps1, Pp3Ps2, Pp3Ps3. The parameters observed were predation rate, bodyweight, mortality of both predators, and competition model. The results showed that the composition difference between P. pseudoannulata and Phidippus sp affected on competition model and the predation. The predation rate of joint predators at different densities ranged from 40.4 – 47.0 individuals of N.lugens (80.8-94.0%) in one-day observation, and they consumed all prey until the third day’s observation. The highest predation rate occurred for Pp3Ps3, but it was assumed it was not safe because of cannibalism and lethal competition. The Pp1Ps2 composition of joint predators was classified as safe, with 0 and 0.2 individuals’ mortalities and followed by draw competition between two predators.
The Diversity of Local Rice Varieties with Specific West Sumatra Flavor Based on Agronomic Characteristics and Yield Components
Authors: Sumilah  , Syarif A , Swasti E 
Published: April 2024

Abstract
Unlike in other provinces in Indonesia, West Sumatran people prefer a specific nonsticky or pera-flavor of rice. The availability of pera-flavor rice varieties is very limited. Because of that, local rice germplasms of West Sumatra can be alternative to overcome the variety’s limitation. The research aimed to determine the diversity of West Sumatra’s local lowland rice varieties with specific preferences of West Sumatra’s people based on their agronomic characteristics and yield components. The research was conducted in farmers’ field at Air Tajun village in Lubuk Alung district and Toboh Gadang Barat village in Sintuk Toboh Gadang district, Padang Pariaman Regency, West Sumatra Province, Indonesia, from April to June 2018. A randomized complete block design with six treatments and four replications was used in this research. The treatments consisted of six of West Sumatra’s local rice varieties, i.e. Putiah Papanai, Lubuak Nyarai, Cantik Manih, Kuriak Putiah, Randah Kuning and Padi Merah. Observations were made on their agronomic characteristics and yield components. Data were analyzed using analysis of variance followed by LSD test at a 5% significance level. Results showed that the Putiah Papanai variety had relatively more productive tillers with an average of 20.8 stems and higher productivity (7.28 tons/ha) compared to other varieties.
Getting more pieces of Mosaics on West Sumatran Spiders (Araneidae): Inventory from Mount Marapi in West Sumatra
Authors: Mairawita  , Herwina H , Dahelmi  , Diniyati F , Janra M N 
Published: April 2024

Abstract
The field survey had been regulated from September until December 2019 by deploying an array of hand collection, sieving, sweeping and beating techniques applied simultaneously along three pairs of 120 m transect positioned at both sides of mountain hiking tracks. This exploration aimed to survey and inquiry the diversity of spiders (Araneidae) in Mount Marapi, West Sumatra Province. There were 25 spider individuals collected in this study; they were then identified and classified into 15 species which associated with 8 genera. Gasteracatha was a genus with the most species found (3 species, 9 individual), followed by Argiope (3 species, 7 individual) and Cyclosa (3 species, 5 individuals). Without minimizing the role of other collecting techniques, the hand collection technique was seemed to be more effective in doing the inventory on either spider individuals or species than the beating, sweeping or sieving techniques. The latter technique yielded the least result in this study.
Effects of urea types combination with alternate wetting and drying irrigation on rice yield in the Vietnam Mekong Delta
Authors: Duong Nha V 
Published: April 2024

Abstract
A field experiment was arranged with a split-plot design with three replications, two irrigation methods including continuous flooding (CF) and Alternate Wet Drying (AWD) combination with three amounts of two fertilizers, nitrogen White Urea and Black Urea. Actual yield, yield components, leaf N content, and chlorophyll index were investigated. The results showed that AWD application saved 9.5% of freshwater. Compared with FC, OM18 did not respond to AWD combination with white and black urea. Applying 100 or 120N of both nitrogen types gave better performances in panicles, filled grain, and yield under both FC and AWD. Regarding OM 18 yield, 100N (Black Urea)– 80 P2O5 – 60K2O in CF gave the best yield (8.0 tons/ha), but this treatment showed non-significant differences from 120N(Black Urea) – 80 P2O5– 60K2O in AWD as well as 120N (Black Urea) – 80 P2O5 – 60K2O in CF (7.2 tons/ha). OM 18 responded to Black Urea better than White Urea under AWD and FC. OM 18 showed the best yield in 100N(Black Urea) – 80 P2O5 – 60K2O under CF. AWD application saved up to 9.5% freshwater.
Invasive ant (Hymenoptera: Formicidae) Paratrechina longicornis along elevational gradients on Mount Marapi, West Sumatera
Authors: Mairawita  , Sakdiah H T S , Herwina H , Janra M N 
Published: April 2024

Abstract
The diversity of ants along elevational gradients has become a topic in many scientific types of research, while the information regarding patterns of, and processes that shapes, ant community structure across different elevations is still considerably lacking. Therefore, the study about ants (Hymenoptera: Formicidae) at Mount Marapi, Agam Regency, West Sumatra, was conducted at three elevations (low elevation at 0-1200 m, mid-elevation at 1200-2100m and high elevation at 2100-3000 m) and by applying Quadra Protocol (honey bait trapping, soil sampling, leaf litter sifting and hand collecting). It focused on Paratrechina longicornis, renowned as an invasive species. A total of 144 individuals from this species were collected; 13 individuals from low elevation, 144 individuals from mid-elevation and 127 individuals from the high elevation. Paratrechina longicornis, also named as ‘longhorn crazy ant’, became the only species observed to be present along the whole study transects. Its ability to adapt to many artificial environments could explain its success as an invasive species. P. longicornis distributions at the elevational gradients of Mount Marapi were discussed in this paper.
Detection of pyroclastic material and deformation of the lava dome in Mt. Sinabung with multi-temporal analysis (2010-2020)
Authors: Hidayat F R , Ginting F I , Agustian  , Fiantis D 
Published: April 2024

Abstract
The persistent eruptions of Mt. Sinabung resulted in the lava dome’s deformation and blanketed the surrounding area with pyroclastic material. This research focused on determining the changes in Mt. Sinabung during the prolonged eruptions from 2010-2020. A total of 22 volcanic ash samples were collected following a 1x1 km grid interval spread over from the East to South slope of Mt. Sinabung. The studied area is the most affected by the volcanic eruption. Digital elevation models from the shuttle radar topographic mission and sentinel-1 were utilized to monitor deformations of the lava dome and the distribution of pyroclastic material on Mt. Sinabung. Sentinel Application Platform and Google Earth Engine were used as the main tools in multi-temporal digital elevation model (DEM) data processing. The eruption of Mt. Sinabung from 2010 to 2020 changed the height from 2,460 m to 2,404.3 m and created a new crater (5.35 ha). The lava dome volume from 2010 to 2020 is about 2,308,041 m3 and has collapsed to produce pyroclastic material which deposits to the surrounding area of Mt. Sinabung during the eruption. The distribution of pyroclastic material increased from 2010 to 2019, covered up an area of 103.27 ha (2010), 846.48 ha (2013), 1,029.74 ha (2016), 1,235.97 ha (2017) and 1,463.62 ha (2019). The thickness of the pyroclastic material deposits at Mt. Sinabung until 2020 varied from 13,24 cm to 219 cm. The findings from this study can be used as a reference for observing topographic changes due to volcanic activities and drawing a mitigation and contingency plan for a volcanic disaster program in the active volcanic region of Indonesia.
The normalized difference vegetation index value of volcanic paddy soils of Mt. Talang using Landsat 8 image
Authors: Amelia S , Agtalarik A , Yasin S , Fiantis D 
Published: April 2024

Abstract
Accurate and up-to date information on the spatial distribution of paddy fields in volcanic soils is important. The volcanic soil in West Sumatra covers an area about 602.500 ha. Soils of volcanic origin are considered fertile and productive soils. They are widely used to grow annual and perennial crops. Paddy cultivation in volcanic soils is commonly practiced in West Sumatra. Remote sensing data can be used to observe the condition of rice plants in volcanic soils from by calculating the vegetation index value through the NDVI (Normalized Difference Vegetation Index). This study aims to determine the vegetation index of paddy grows in Mt. Talang by using Landsat 8 satellite imagery and correlate the index value with the total carbon and fractions content. Soil samples were collected using the 1x1 km interval grid method from 5099,78 ha of volcanic paddy fields. Soil samples were collected undisturbed and disturbed condition. The undisturbed soil samples were used to analyze bulk density (BD). The disturbed soil samples were dried and sieved with a 2-mm sieve and then analyzed for soil pH (H20 and KCl), Organic C, Labile C, and Very Labile C. All of soil samples have low bulk density (0.76-0.89 Mg/m3). Soil pH is considered neutral (6.50 to 6.93). The average vegetation index value was high, with a maximum value of 0.60 and a minimum value of 0.39. The results of the regression analysis showed that there was no relationship between NDVI and soil chemical properties. Determination of the vegetation index during the growing period of paddy is very useful to improve the accuracy of paddy identification sites at the regional scale and to predict the potential paddy production in due time.
Family resilience of smallholder farmers in Indonesia’s oil palm plantation
Authors: Pradipta L , Romdiati H , Setiawan B , Vibriyanti D , Seftiani S , Oktafiani I 
Published: April 2024

Abstract
Problems about family are still analyzed in general and do not specifically look at the livelihood aspect. Whereas from the social sciences lensed, livelihood is the main factor that significantly contributes to the resilience of family. One of the family issues which became a major problem in Indonesia is family resilience in the oil palm plantation context. Families in the plantation sector always have tremendous challenges either from internal, external, or structural layers. At the internal level, families have to bear with psychological and physical issues which may trigger them to become more vulnerable. From an external level, the work ambiance in palm plantations, as well as price fluctuation and access to financial capital, may threaten the families who work and live surrounding palm plantations. Furthermore, from a structural level, families have to deal with biased and unfair regulations which undeniably make them much poorer and more suffered. This study aimed to analyze the vivid condition of smallholder families in the oil palm plantation context and how they deal with those challenges. Besides, this study also aimed to formulate some strategies to make them become a resilient family. This study used qualitative methods, by conducting FGDs and in-depth interviews with smallholder farmers of oil palm plantations as key informants in two different plantation areas in Indonesia; Lampung and Kalimantan.
Factors affecting consumers’ preferences in purchasing organic vegetables using a theory of planned behavior
Authors: Aprilia A , Dewi H E , Pariasa I I , Hardana A E 
Published: April 2024

Abstract
Organic food consumption has increased, and health and environmental concerns are becoming particularly crucial for policymakers and individual consumers. Meanwhile, consumers are increasingly demanding sustainable practices for organic food production. This research aims to investigate the impact of sustainability and health values on consumer purchase intention and behaviour in selecting organic vegetables. In so doing, consumers of organic vegetables in East Java, Indonesia were chosen as respondents in this research by using the development of a theory of planned behavior. A structured questionnaire presented in Google form was used to survey 116 research respondents online, and the data was analyzed using Partial Least Squares - Structural Equation Modeling. The respondents’ determination has been adjusted to the minimum requirement for the amount of data used in the analysis by taking into account the minimum R-squares and power statistics. The results indicate that the value of sustainability and health effects on purchase intention through mediating consumer attitudes. Attitudes, subjective norms, and perceived behavioural control, on the other hand, influence purchasing behaviour by negotiating purchase intention. The findings of this research are expected to strengthen the development of marketing strategies for organically processed products, especially vegetables, to gain potential consumers.
The development of an environmental resilience index for Selangor, Malaysia
Authors: Asmawi M Z , Yussof S H S Z , Ibrahim I , M Rani W N M W 
Published: April 2024

Abstract
Over the years, rapid urbanisation aided by advanced technologies and population increment has significantly altered the natural environment into concrete jungles resulting in adverse environmental degradation. In order to mould a sustainable, resilient and green future, global efforts and directives have been introduced, such as the 17 Sustainable Development Goals, low-carbon cities, and others at international and local levels. Nevertheless, grassroots initiatives and actions are crucial in producing results. Presently, there is no mechanism to measure the relevant environmental components into a comprehensive system indicating Malaysia’s level of environmental resilience. Though the local governments have to report their development performance via MURNINET, a system developed by PLANMalaysia, this system does not include environmental resilience. As such, this study on the Environmental Resilience Index (ERI) was embarked on, proposing five environmental components that can be used by local authorities to assess environmental resilience. ERI covers environmental resources, built environment, climate conditions, natural disasters and environmental issues. On the other hand, this paper shares an ERI pilot analysis of the environmental resources of the study area, Selangor, Malaysia, consisting of 9 districts. The data used to analyse are majorly secondary data from official reports of responsible technical departments and agencies in Malaysia to ensure the validity and reliability of data. The output of this analysis was generated using ArcGIS software as it relates to the weightage of different components and sub-components. The results show that most districts in Selangor have an ERI level of moderate level, while three districts, namely Sabak Bernam, Sepang and Petaling, are categorised as having low ERI levels.
Gender roles and ethnicity in agricultural water management: a case study of Tinh Bien District, An Giang Province, Vietnam
Authors: Thai L H P , Duong N V , Pham V H T , Blake D J H 
Published: April 2024

Abstract
Women form a crucial part of Vietnam’s agricultural labor force and contribute to national economic development. Still, often the nature of their contribution is inadequately recognized by broad sectors of society. Due to entrenched gender roles and norms, women’s influence over agricultural activity decision-making at the household and institutional levels is limited and poorly acknowledged. This paper explores women’s participation at a household and local level in agricultural water resources management. This research draws upon field studies conducted in Tinh Bien district, An Giang province, Vietnam, a predominantly wetlands environment but with some prominent low hills that present different challenges for water management. The study employed focus group discussion, in-depth interviews, and participant observations to gather data at households and higher levels of governance. The findings highlight that despite being central to socio-economic production across multiple aspects of water wetlands management, women’s voices are overlooked for inclusion within management institutions. It was noted that Khmer minority women tend to be better represented at the household level than Kinh women, but both Khmer and Kinh women’s decision-making power over wetlands and water management at higher institutional levels is still limited.
Impact of innovative leadership in achieving sustainable development goals: a study conducted among selected small-scale industry units in Kerala, India
Authors: Gayathri H , Kumari Thriveni 
Published: April 2024

Abstract
The ability of a leader to inspire prodigious action in himself and those around him during periods of idea generation and innovation is known as innovation leadership. Innovative leaders may encourage those around them to make their big aspirations and creative ideas a reality. They are creative visionaries with huge dreams and innovative ideas. With sustainable development, business objectives can be achieved without compromising the resources required for future generations. It only concentrates on the expansion of resources to meet future needs over the long term. It is crucial to strike a balance between these two ideas because without sound leadership direction, social, human, and cultural progress cannot occur. This study attempts to provide a clear picture of the effects of innovative leadership on the achievement of sustainable development goals and the performance of the organisation. The sample units for this research are selected registered small-scale manufacturing entities from the Indian State of Kerala. This study shows a strong correlation between inventive leadership, long-term viability, and corporate success. Future studies in the field of innovative leadership will use this study as a model.
Study of sustainable solid waste management system of Carocok Beach Painan tourism area using Life Cycle Assessment (LCA) method
Authors: Aziz R , Ruslinda Y , Hukmi R 
Published: April 2024

Abstract
This study aims to assess the environmental impact and compare two scenarios of the solid waste management system of the Carocok Beach Tourism Area using the Life Cycle Assessment method. System boundaries include operational and technical aspects of waste management, the energy required, and emissions generated. The functional unit is 30.546 kg/day of waste treated. Scenario 1 is the existing conditions using a city-scale approach with a 1% reduction of waste at the source by scavengers, using a collection of motorized pedicabs, applying transportation to landfills by arm roll truck, and processing Integrated Solid Waste Treatment Plant by composting and landfilling with controlled landfill operation. Scenario 2 is the planning system with different phases of waste processing at the Recycling Center by composting and recycling with plastic chopping machines, producing handicrafts, and practices of sanitary landfill on landfilling. The impact assessment method uses the CML-IA method. The impact categories studied are Global Warming Potential (GWP), Acidification Potential (AP), and Eutrophication Potential (EP). Scenario 2 showed the best scenario because it has a smaller impact value for the three impact categories. However, to become a more sustainable management system, some improvement options recommended include a substitution of collection and vehicle fuel and waste processing using the Takakura method.