bluuebunny/crossref_metadata_2025 huggingface dataset:
A conceptual framework for including “safety in design” in engineering training and design practise
Authors: Shi Weifang , Chang-Richards Alice , Guo Brian H.W.
Published: December 2022

Despite significant efforts taken to reduce hazards on the construction site, statistics across the globe suggest that construction-related fatalities remain high. While prevention through design gains momentum to eliminate latent health & safety hazards at the upfront design stage, designers often lack experience in recognising hazards that occur later on during the construction or operational stage. To fill this gap, this paper develops a conceptual framework to better communicate safety in design (SiD) to designers, thus raising their awareness of SiD and building their capability when considering appropriate design features. The conceptual framework embrace visualization, knowledge sharing, highly engagement and embedded-in questionnaire technologies. This research is part of a doctoral study, and it is hoped to lay a conceptual foundation for ongoing research that aims to enable designers to embrace SiD in their training and practice in the future.
Reality Capture for Historic BIM (HBIM) Development of the Old Polk County Courthouse in Bartow, Florida, USA
Authors: Foreman G , Liu J
Published: December 2022

Nestled in the historic district of the small Central Florida town of Bartow, the Old Polk County Courthouse (OPCC) served the citizens of Polk County from 1909 to 1987. Eventually replaced by a high-rise courthouse to accommodate population growth, the OPCC underwent major restorations between 1993 and 1996 and now serves as the Polk County History Center, which houses a historical museum and genealogical library. Due to its historical value within local and regional contexts, it was deemed important to archive the courthouse in a manner that can be utilized from a practical standpoint of preservation, operations, and maintenance and an academic standpoint for research of early 20th century buildings in the southeastern U.S. A research project has been done to use Historic Building Information Modeling (HBIM) technology to digitally preserve and reconstruct the OPCC building. The findings of this project can be implemented to help digitally document and recreate other historic structures. This paper presents the work flow and technologies that were utilized to capture data for developing HBIM models of the OPCC, including conventional field surveys, LiDAR scanning, photogrammetry, and 360-degree photography.
Evaluating the Challenges of Data Management in COBie Datasheet and Mitigation Measures
Authors: Kumar Vishal , Lin Teo Evelyn Ai
Published: December 2022

BIM to FM has gained considerable attention. Nevertheless, BIM adoption for FM is still low. Issues such as lack of standardized process to develop FM data during design and construction stages, Standardized data format for data transfer, and fragmented databases are highlighted in multiple BIM-FM research. COBie defines when, how, and what data needs to be captured for FM purposes. However, previous research combined with explorative studies highlighted several challenges with handling the COBie datasheet, especially its widely used spreadsheet format. This study aims to identify the issues associated with COBie handling (especially its spreadsheet format) and propose a COBie Dataset Management System framework (CDMS) to help solve these issues. In developing the proposed CDMS framework, a critical review of the published articles related to the COBie datasheet has been conducted. An exploratory study using a BIM Model was conducted along with the literature review to understand the key challenges highlighted in the reviewed articles. Based on the identified key issues, underlying reasons were recognized, and key ideas for the framework have been developed, potentially solving these key challenges. The research finding will help develop COBie-centric applications and enhance the entire COBie data capturing workflow.
A Cost Model for Additive Manufacturing in Construction
Authors: Re Daniele , Biccari Carla Di , Corallo Angelo
Published: December 2022

The construction industry faces several challenges every day, which are pushing this sector to start a process of innovation. In this contest, Additive Manufacturing (AM) represents an innovation and digitalization opportunity; on this basis, this work will focus on an assessment of AM as an enabling technology for this industry, especially from a cost perspective. In particular, since there is not yet a suitable cost model for AM in construction, a cost model will be developed to assess whether it is cost effective to use 3D printing in the building industry. The results obtained from the application of the cost model on a case study are very promising as they open up new avenues for considering 3D printing as a valid alternative to traditional construction methods.
Success factors to large-scale adoption of wearable technology for musculoskeletal disorders (MSDs) prevention: a case study
Authors: Yin Q , Obonyo E , Eskandrani A , Zhao J
Published: December 2022

Wearable technology has been playing an increasingly essential role in the construction domain, especially for safety and health related research. Musculoskeletal disorders (MSDs) are one of the most prevalent health problems among construction workers due to the physical demanding feature of the construction work. To solve this problem, wearable sensing technology has been applied for MSDs prevention. However, the large-scale adoption of wearables has encountered challenges and barriers. This study firstly reviewed recent literature on the factors influencing wearable technology adoption and designed a survey based on the review to further investigate adoption barriers and strategies using our proposed MSDs prevention system as a case study. The results demonstrate that the discomfort and fatigue caused by wearing devices for a long period of time is the main concerns hindering wearable adoption in our case. Construction managers expressed concerns on the indirect costs of implementation and workers expressed their concern on the invasion of privacy. To address these concerns, strategies to promote wearable adoption identified in literature such as worker training and education and providing personalized features were discussed. This study provides insight into the factors contributing to the large-scale adoption of wearable technology for MSDs prevention from the application perspective.
Multiple system integration in local government asset management: A New Zealand case study
Authors: Jiang J , Henning T F P , Zou Y
Published: December 2022

Local government in New Zealand invests in numerous Asset Management Information Systems (AMIS) in order to support their infrastructure asset operations and management decision-making. However, the silo nature of the organisational operations and proprietary constraints of AMIS have created an environment of dispersed information and systems with little or no regard to interoperability or data sharing. Adopting multiple standalone systems creates difficulties for accessing, analysing and maintaining the asset, thus compromising management efficiency and effectiveness. Consequently, there is a great desire to bring the various AMIS systems together using a Multiple System Integration (MSI) approach. This study intends to examine the MSI concept by exploring more open-sourced systems such as GIS, which is widely used in local government’s asset planning and management. In addition, being the key driver behind the technology advancement in the construction industry, BIM has created innovative applications and widened the research domains in areas such as BIM and GIS integration studies. However, the multiple system approach to further integrate the existing AMIS, is missing from both the current industry practices and academic studies. Using a case study of a BIM implementation project carried out by a local government, this research illustrates and validates the integration of BIM/GIS with the lifecycle planning specific AMIS. The novel MSI approach provides a paradigm as a solution to improve the siloed operation manner. The approach will also set the foundation for future studies in local government’s digital transformation and in the field of developing true asset Digital Twins.
AI-driven safety checks for ladders used on construction sites
Authors: Hire S , Ranjan A , Ruikar K , Sandbhor S
Published: December 2022

Construction plays an integral part in the social and economic development of countries worldwide. Construction site safety is a crucial concern in both developed and developing countries. Because the preponderance of safety practices is mitigation-oriented rather than prevention-oriented, the construction industry has poor safety and health conditions. Falls are the primary cause of accidents involving roof and ladder falls on site. With the ability of Artificial Intelligence (AI) based techniques, the safety of ladders can be effectively managed, and the rate of accidents can be reduced. This study presents the AI-driven safety checking for a ladder in the pre-use stage. The checks are performed in Python programming language and various libraries such as math, Numpy, and Opencv. The AI-driven safety checking can decide for ‘fitness for the use of the ladder in terms of its structural rigidity before use. Compared to conventional safety practice, this process is less time-consuming, an inspection can be done throughout the project lifecycle, data can be stored and shared virtually, and needless to say, the ladder-related hazards can be reduced.
Impact Assessment Model for Low Cost (Shoestring) Digitalisation in Small Construction Organizations
Authors: Yilmaz Gokcen , Mukherjee Anandarup , Aguayo Jaime Macias , McFarlane Duncan
Published: December 2022

Adopting low-cost (shoestring) digital solutions in organisations should be followed by assessing the business and digitalisation impact. Evaluating the impact of low-cost (shoestring) digital solutions on improving business and digitisation benefits becomes essential for small organisations. This paper introduces an impact assessment model for digital shoestring solutions developed through the digital shoestring program. The proposed model assesses the impact of the low-cost digital solutions on 1) the business and 2) the digitalisation benefits after their installation. The model’s suitability is tested through a single exploratory case study performed with a small construction supplier. The case study highlighted that some digital solutions in the digital shoestring solutions catalogue affect only a part of the business benefits. The case study results also showed that the digitalisation benefits are not comprehensive enough to assess the digitalisation level achieved. Motivated by the case study results and inputs from literature, we propose an updated and novel impact assessment model that can be used uniformly across industries and adheres to multiple commonly accepted IoT reference architectures. This model will output the levels of digitalisation achieved and provides a comparative score of the achieved business impact for the digital solutions deployed at small organisations.
Climate risk perception among women farmers in Kwara North, Nigeria
Authors: Aliyu H K A , Sheriffdeen M
Published: December 2022

Past academic debates have identified the need to mainstream indigenous knowledge and gender perspectives in relation to climate risk analysis, perceptions of vulnerability, experiences, and coping mechanisms. The justification for this is that gender often dictates who gains and who loses in environmental disasters and because women make up almost 80% of the agricultural workforce in the tropics and are increasingly vulnerable to climate change, they have learned to adapt to climate variability and their adaptation over time has been through indigenous knowledge practices. Through questionnaires, Focus Group Discussions and observations, this study attempts to understand how women farmers perceive climate risk in rural parts of Nigeria. The women farmers’ perception of climate change was viewed from different angles, ranging from causes, weather events, rainfall to temperature. Our result indicates that the women farmers’ understanding of local forcing of climate change (i.e. local actions that contribute to climate variability) is low and it varies across the five Local Government Areas (LGAs) in the study area. Women farmers perceive climate change as a problem that could have a long-lasting effect on their livelihood systems.
Citizen science: Realizing a participatory rain data management for flood disasters early warning systems and building disaster awareness from a very young age
Authors: Nugroho H Y S H , Savitri E , Wahyuningrum N , Sudiana N , Indrajaya Y , Christanto N
Published: December 2022

According to official data from the National Disaster Management Agency (BNPB), in 2021, flooding was Indonesia’s most frequent and destructive disaster. Thus, better disaster management, including early warning systems (EWS) and disaster mitigation based on accurate rainfall data, is essential. This paper was written based on preliminary research on the development of citizen science in Wonosobo and Banjarnegara regencies, Central Java, which aims to develop a very early warning system (VEWS) and community-based rainfall data management. Modified rain gauges are installed in elementary schools in the upstream Serayu watershed. Students, in turn, do data recording. This effort ensures continuity of observation, the introduction of science and technology, and increased literacy about floods and landslides and their mitigation. From the initial research, it can be stated that the integration of the citizen science model into compulsory subjects for elementary school children is very prospective for accelerating students’ understanding of subjects related to natural sciences. A citizen science approach that is carried out correctly is able to produce accurate rainfall data continuously. These two things are enabling factors for the effective and efficient implementation of the VEWS flood disaster in the upstream watershed.
Geophytes cultivation dilemma in Indonesia: Climate change disaster mitigation, investment, and impact on the environment
Authors: Pieter L A G , Utomo M M B , Sudomo A , Siagian C M
Published: December 2022

Climate change affects farming activities, leading to a greater impact on food security. Indonesia has the potential for a wide variety of geophytes that can be utilized for food security. However, geophytes are underutilized crops, and our staple food is still dominated by rice. This study aims to explore the potential and obstacles in geophytes development for strengthening food resilience in Indonesia. The methods used in this research were surveying and interviewing 30 “porang” and “beneng” taro farmers between January 2022 to April 2022 to determine the potential of tuber development and its market regarding climate change. The research was carried out in Ciamis and Tasikmalaya Regency, West Java, Indonesia. The result shows that geophytes are low maintenance which helps in reducing GHG emissions. Unlike grains, geophytes are commonly shade-tolerant, more tolerant to drought stress, and resilient on marginal land. However, the difficulties in the geophytes crops development are the unstable prices, and the market sometimes is still very segmented and obscure. Meanwhile, to start planting geophytes on a large scale has an environmental problem and a significant investment risk for farmers, especially farmers with limited land and capital. Therefore, enrichment of geophytes planting under the state land stands may be an option for mitigating climate change and overcoming food security.
Mapping of Scientific Tourism Objects and Attractions in Bogor City
Authors: Ilhami W T , Arifin H S , Pramudya B , Kosmaryandi N
Published: December 2022

Bogor City is one of the popular urban tourism destinations in West Java Province, Indonesia. This city has a history that is closely related to the development of science and technology, especially the life sciences. Bogor City is a habitat for the growth of various centers of knowledge. The development of science in Bogor city is the starting point for the development of scientific institutions, both research and education, especially in the field of agriculture in a broad sense. Until now, it is not known how significant the potential of Bogor City as a scientific tourism destination is. This paper aims to publish the results of mapping scientific tourism objects and attractions in Bogor City. The research method used is descriptive quantitative questionnaires and spatial mapping through Geographic Information Systems (GIS). The results showed that the potential for scientific tourism in Bogor City could be divided into five classifications, i.e., historical and cultural tourism, educational tourism, research tourism, scientific adventure tourism, and Meeting, Incentive, Conference, and Exhibition (MICE) tourism. The diversity of scientific tourism potential can become a new tourism concept trend to be developed in the city of Bogor in particular and other areas in Indonesia in the future.
Variable sustainability of domestic wastewater management in informal self-help housing, Case Study Bogor City
Authors: Darmastuti L , Rustiadi E , Fauzi A , Purwanto YJ
Published: December 2022

The purpose of this study is to identify sustainability variables in domestic wastewater management in informal self-help housing in Bogor City. The analysis tool used is MICMAC analysis, which can identify variables of influences and dependences, mapped in a graph to explain the relationships between variables, and know the causal chain of a system. The identified variables are derived from books, journals, regulations issued by the government, field observations, in-depth interviews with stakeholders, focuss group discussion. The result of the MICMAC analysis is 1) very influential variables as key variables include: variables of the role of government and social capital; 2) relay variables or variables that are influential but highly dependent, including variables of community participation and empowerment, knowledge and education, sharing community resources, financial assistance, non-financial assistance, provision/ construction of facilities and infrastructure, operation and maintenance of facilities and infrastructure, community institutions, management collaboration, policy reform, budget support, regulations for providing incentives/disincentives and rewards/sanctions that are implemented; 3) depending variables or result variables are variable of spatial and building planning; 4) excluded variables or variables whose influence is relatively small on the system are variables of culture and customs, alternative financing, land provision and legal aspects of land, partnerships between government, private, community and volunteer organizations and asset security.
Management strategy for marine tourism in Bunaken National Park North Sulawesi Province
Authors: Kamagi J W A , Sitorus S R P , Arifin H S , Hardjomidjojo H
Published: December 2022

Bunaken National Park is well-known as one of the special interest tourist destinations with diving activities as its main attraction. Bunaken National Park is also famous for its unique underwater landscape in the form of coral reef walls. Some of the marine tourism attractions in Bunaken National Park are diving, snorkeling, underwater photography, Bottom Glass Boat (catamaran), dolphin watching, and dugong watching. In its management, Bunaken Park has several problems, such as the potential for tourist attractions that are not optimal, mass tourism, litter and the illegal capture of protected marine animals. This study aims to obtain a marine tourism management strategy and its priorities. The analysis method used is interpretative structural modeling using experts as data sources. The experts used as data sources are 2 people from academics and 1 person from the former manager of the Bunaken National Park (DPTNB). The strategies obtained are visitor management strategies, environmental quality improvement strategies and community empowerment strategies. To realize this strategy, program implementation is strengthening regulations and permits, Waste Management, Destination development, community empowerment and stakeholder cooperation.
The development of environmental case handling policy in Indonesian court
Authors: Syahr Z H A , Putra S G M S R
Published: December 2022

The lawsuit of the environmental dispute has long been discussed along with the phenomenon of environmental destruction. The actions that have an impact on environmental damage must be accounted for through a strict legal process. The Supreme Court issued a policy in 2011 related to the certification of environmental judges. This policy has been implemented for a long time and is in line with the development of issues of environmental change. Therefore, the objective of this research is to evaluate the certification policy of environmental judges so that they have competence in the development of environmental issues in the community. The research method used is qualitative with a normative approach. Data collection is carried out by reviewing laws and regulations and also collecting data on environmental cases that register in court over the last three years. Then analyzed descriptively to describe what policies need to be made to support the resolution of the current environmental issues. The result obtained is that the environmental judge certification policy must be supported by a renewal of the curriculum and training model. Then, there is the potential for having an environmental court due to the various types of violations against environmental management and preservation.
Cloud-free mosaic for high-resolution satellite to support natural resources and disaster monitoring
Authors: Brahmantara R P , Ulfa K , Rahayu M I , Prabowo Y , Hestrio Y F , Sartika  , Kustiyo  , Candra D S , Novresiandi D A
Published: December 2022

High-resolution satellite imageries have been widely used for many applications, including monitoring natural resources and disasters. Unfortunately, the existence of the cloud interferes with these activities. The small coverage of high-resolution satellite imageries is also needed to be extended to a larger coverage for monitoring large areas. A method for generating the cloud-free tile-based mosaic for high-resolution satellite images is proposed in this paper to address the issues, namely Mosaic Tile-Based (MTB). The basic idea of this method is to take advantage of the cloud cover information from multi-temporal high-resolution satellite images to select the best image with the minimum cloud cover. SPOT-6 and SPOT-7 pan-sharpened images are used to test the method’s reliability. First, each image is re-shaped becomes tiles and keeps the information of its acquisition date. Each tile image is then calculated and assessed based on its cloud cover. Tile image selection is conducted in the next step to select the best tile with the lowest percentage of the cloud cover. In the last step, a mosaic of each best tile is conducted to produce a cloud-free mosaic. As a result, the mosaic product has a minimum cloud cover and larger coverage. The proposed method has beneficial as it keeps the original acquisition date on each tile and is faster for image processing activities. Thus, this method can be used as an alternative method for generating cloud-free mosaic for high-resolution satellite images to support natural resources and disaster monitoring.
Shallow water habitats monitoring using simulated PRISMA hyperspectral data and Depth Invariant Index – the case of coral reef in Maldives
Authors: Chan Jonathan Cheung-Wai
Published: December 2022

Environmental crises have negative impact to marine ecosystems. Coral reefs which offer great wealth of habitats are considered one of the most vulnerable. Remote sensing approaches can be utilized for monitoring, but scattering and absorption under water pose serious challenges to passive sensors. While hyperspectral data are often considered more effective than multispectral data, they are often unavailable. In this study, we describe preliminary effort to combine depth invariant index (DII) and simulated hyperspectral data for habitat classification in shallow water. Initial observations suggest incorporating DII in classification generate more homogenous patches in similar estimated depths, which potentially improves classification accuracies. Pre-processing procedure and the generation of DII are implemented using Sen2Coral Toolbox in SNAP, which are useful. Further studies with groundtruth measurement are needed to establish more conclusive discussions.
Estimating soil moisture condition of paddy fields by using optical remote sensing imagery
Authors: Sholihah Rizqi I’anatus , Karyati Nur Etika , Trisasongko Bambang H , Panuju Dyah R , Iman La Ode S , Nadalia Desi
Published: December 2022

Soil moisture is essential in monitoring agricultural lands, particularly in Jember, East Java which serves as one of Indonesian rice-producing regions. Scarcity of information related to the environment crucial to rice planting is evident. This includes detailed growth phase and soil moisture, where their estimation could be done through exploiting remote sensing data. This study aims to estimate soil moisture condition on paddy fields in selected study areas by applying Landsat 8 OLI/TIRS data, acquired in 2021. Thermal band of Landsat 8 was utilized to derive the Soil Moisture Index (SMI). This study also investigated the variation of vegetation index (studied using NDVI) and land surface temperature (LST) as parameters related to soil moisture conditions. Paddy fields in the study area were dominated by moderate soil moisture levels, with average SMI of 0.47, NDVI=0.45, and about 22°C temperature. The SMI ranged from 0.21 to 0.65. The low SMI values indicate low vegetation density and high surface temperature in paddy lands. This research suggested that SMI from Landsat 8 could serve as an efficient approach in monitoring soil moisture condition and understanding its correlation to surface temperature and vegetation condition in agricultural areas, particularly paddy fields.
Innovation of Electromagnetic Power Generator as Energy Sources for Sustainable Citronella Oil Processing
Authors: Iswahyudi  , Kusmana C , Karlinasari L , Pertiwi S , Mulatsih S
Published: December 2022

By planting citronella, the community has historically and culturally promoted citronella oil production for decades (Cymbopogon nardus L). The most common energy sources for distillation are distillation waste and firewood. The completion energy distillation of citronella oil is becoming more challenging as it becomes more difficult to obtain firewood and the price increases. This limitation renders citronella oil production untenable. For the distillation process, alternative energy sources with the attributes of Consolidated, Continue, Controllable, Clean, and Affordable are introduced, in this case, an electromagnetic power generator energy source. The research was carried out at Sirna Jaya Village, Gunung Halu District, West Bandung Province. The Electromagnetic Power Generator consists of three major components: 1. Starter for beginning rotation; 2. Electromagnet Guider for controlling the repulsion force between comparable magnetic poles, which is subsequently transferred to kinetic energy; and 3. Generator for producing electrical energy. It has been demonstrated that the power generator innovation can create 1500 watts of electrical energy and be scaled up. It has been demonstrated that the Electromagnetic Power Generator is a valuable energy source for processing citronella oil.
Cadmium (Cd) Heavy Metal Content in Central Java Shallot Production Center
Authors: Zu’amah H , Handayani C O , Dewi T
Published: December 2022

Central Java is one of the centers of shallot production in Indonesia. The number of anthropogenic activities in the area causes the accumulation of heavy metal contamination in the soil. This study aimed to determine the heavy metal content of Cadmium (Cd) in three regencies of shallot production centers in Central Java. The study was conducted in three regencies of shallot production centers in Central Java: Pati, Demak, and Brebes Regency. Soil samples were taken by the purposive sampling method. The highest Cd content was found in Brebes Regency at 3.53 mg kg-1, and the lowest was in Pati Regency with a value of 1.10 mg kg-1. The value of the geoaccumulation index shows the presence of Cd contamination from anthropogenic activities. In Pati and Demak Recency contaminated with Cd with moderate to heavy status, Brebes Regency showed Cd contamination as serious. The high content of Cd in the Brebes Regency with severe contamination status is thought to be due to the intensity of cultivation and the increased use of agrochemicals, fertilizers, and pesticides.
Changes in soil chemical properties due to the application of young coconut waste biochar and goat manure fertilizer on tomato (Solanum lycopersicum l.) cultivation land
Authors: Warzukni W , Zaitun Z , Jauharlina J
Published: December 2022

This study aims to determine the effect of young coconut waste biochar and goat manure application on the chemical properties of the entisol. The Biochar Research Station, Universitas Syiah Kuala, conducted the research. This study used a factorial randomized block design consisting of two factors. The first factor was the dose of young coconut waste biochar (0, 5, and 10 t ha-1), and the second was the dose of goat manure (0, 5, 10, and 15 t ha-1). Parameters observed in this study were soil chemical properties analysis of entisol (pH, organic C, total N, available P, and exchangeable K). The results showed that the young coconut waste biochar application could affect the soil’s chemical properties, especially the soil exchangeable K. Young coconut waste biochar application can increase the exchangeable soil K in tomato cultivation land. The application of goat manure did not affect the soil’s chemical properties in tomato cultivation land.
Biodiversity catastrophic: Overexploitation of the endemic fauna in East Nusa Tenggara, Indonesia
Authors: Hidayat O , Pramatana F
Published: December 2022

As the southernmost province, East Nusa Tenggara (NTT) encompasses the eastern part of the Lesser Sunda Archipelago. It has a unique landscape with more than 500 small islands providing habitat for many endemic species. Local communities depend significantly on natural resources. Due to uncontrolled poaching, the population of several native faunas has drastically decreased, such as the Yellow-crested cockatoo (Cacatua sulphurea), Sumba cockatoo (Cacatua citrinocristata), and Roti Island snake-necked turtle (Chelodina mccordi). All those species were common in the past. Cockatoos are even considered a pest for local crops like corn and sorghum. Roti Island snake-necked turtle is often found in the village’s paddy fields or irrigation canals. Unfortunately, they are listed on the red list International Union for Conservation of Nature (IUCN) Red List as critically endangered. We reviewed and compiled data from scientific papers, technical reports, unpublished reports, birding reports, and online sources. We also collected data on opportunistic surveys for searching the species from 2010 to 2021. The study showed that the yellow-crested cockatoo could not be found in many areas. The Sumba cockatoo population is now scattered in fragmented forests, and the Roti Island snake-necked turtle is highly likely to be extinct in the wild.
The evaluation of agroforestry development in marginal land area of Gunungkidul, Indonesia
Authors: Widiyanto A , Fauziyah E , Suhartono
Published: December 2022

Forests are expected to provide social and economic benefits to the community, in addition to the ecological benefits. The production forest in Gunungkidul which is managed by the Yogyakarta Forest Management Unit (FMU) is dominated by teak (Tectona grandis) and cajuput (Melaleuca cajuput) as the main crop. Gunungkidul is dominated by marginal land with low nutrients, low pH, and low organic matter. Agroforestry is known as a promising option in land use systems considering multi-strata canopy combinations and multi-products. This study aimed to compare two types of agroforestry with two main crops; teak and cajuput tree concerning cultivation, economy, and social benefits. The method used was in-depth interviews with the forest community and FMU Yogyakarta. The number of respondents was 60 forest farmers, from which 30 farmers each for the two agroforestry patterns, and the staff of FMU Yogyakarta consisted of 2 people from the management staff and 2 people from the field staff. The main data were forest farmer activities in state forests, including income and expenses during cultivation. In addition, the data includes perceptions and data regarding the advantages of the community forests (CF) program from the aspects of the economy, social (preference), and cultivation. The results showed that economically, cajuput tree-based agroforestry activities contributed more income than teak-based agroforestry. In the cultivation aspect, farmers prefer cajuput stands because they have wider open land. Likewise, FMU considers cajuput tree cultivation easier and the risk of theft (i.e. illegal cutting) smaller. However, teak agroforestry is more environmentally friendly than cajuput, for example, teak litter can be a source of natural organic fertilizer. Therefore, it is necessary to find a technical solution to deal with this difference of interests to secure the success of agroforestry implementation such as suitable spacing, the combination of cropping patterns, and intensive cultivation.
Population status of the critically endangered tree Vatica venulosa (Dipterocarpaceae) in lowland riparian forests of East Kalimantan
Authors: Primananda E , Rinandio D S , Robiansyah I
Published: December 2022

Vatica venulosa is a threatened tree from the family Dipterocarpaceae. Due to degradation and conversion of its habitat in lowland riparian forests, this species is classified as Critically Endangered by the International Union for Conservation of Nature (IUCN) Red List. We carried out surveys for V. venulosa in Kutai Kartanegara, East Kalimantan, to depict the current population status of the species in the region. We surveyed 14 forested areas along Belayan River in Kutai Kartanegara. From these 14 locations, we only successfully identified V. venulosa at one location, namely in Long Beleh Village, Kembang Janggut District. A total of 71 individuals of which 84.5% classified in the 0-5 cm diameter class, were found. We also found nine individuals in the mature stage, i.e., producing flowers and fruits. The main threat to V. venulosa is habitat conversion into large-scale oil palm plantations. Protection of the forest fragment in Long Beleh is highly recommended in order to protect the species from local extinction.
Multi-stakeholder partnership in the context of responsible shrimp farming in Indonesia: a systematic review
Authors: Umbas Anytha P , Fauzi A , Purnomo H , Kolopaking L M , Syaiful Reza A
Published: December 2022

Shrimp farming is an aquaculture activity with complex environmental and social issues that must be solved in cooperation with relevant stakeholders. This study aims to review the concept of multi-stakeholder partnership in the context of shrimp farming. In this study, a qualitative literature review was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyse (PRISMA) framework within the scientific literature. Based on the defined inclusion and exclusion criteria, 4 of 17 studies published between 2010 and 2020 were selected to review further, referring to the concept of multi-stakeholder partnership in aquaculture, taking into account social-ecological system framework management. Our review revealed that multi-stakeholder partnerships allegedly become the problem solver since the complex problem can be neither understood nor addressed by only a single organization or actor involved in shrimp farming. Multi-stakeholder partnership, in which government – business – public (including farmers) are involved, will have an essential meaning in solving complex problems in shrimp farming through sharing in planning, decision making, and activities goals among them.
The impact of drying time and storage room on the viability of trema (Trema orientalis Linn. Blume) seed
Authors: Nugraheni Y M M A , Yuniarti N
Published: December 2022

During drying and storage, trema seeds undergo a process of seed deterioration. Seed deterioration is a decrease in the quality of seed viability which can cause overall changes in the seed, both physiologically and chemically. The aim of this research was to analyze the impact of drying time and storage technique on the deterioration of trema seed, both physiological and chemical, and to get the best (optimum) drying time and storage technique for trema seeds. The experimental design used in this research was completely randomized with 2 factors, namely: the drying time factor (0, 24, 48, 72, 96, 120 hours) and the storage technique factor (room temperature, refrigerator, and air conditioner). The results showed that the drying time and storage technique had a significant impact on the moisture content, germination percentage, germination speed, and biochemical content (fat, carbohydrate, protein) both before and after storage. Besides that, seed drying time had an effect on the physiological and biochemical properties of trema seed at various levels of drying time and storage technique (the declining value of water and germination, increased levels of fat, decreased levels of protein and carbohydrates). In addition, seeds that were stored in an air conditioner are more viable.
Effect of bionanomaterials and Shorea balangeran compost application on the growth of peat rice (Oryza sativa L.) in peatland
Authors: Madani H N , Wijayanto N , Hartoyo A P P , Octaviani E A , Natalia E , Solikhin A
Published: December 2022

Peatlands are acidic with low fertility. Conversely, shallow peat can become a food source for local communities, thus requiring soil amendment to improve productivity and sustainable use. One of the ways is by applying bionanomaterials (BNMs) derived from oil palm empty fruit bunch (OPEFB) and oil palm trunk (OPT) as well as Shorea balangeran compost as an indigenous shallow peat species. This study aims to analyze the effect of BNMs on rice germination in a laboratory (in vitro) and rice growth in the greenhouse (in vivo). The experimental design used a completely random design of 2 factors, namely rice varieties and BNMs (activated, non-activated OPEFB, OPT lignocellulose, and non-activated OPT, respectively, at doses of 1%, 3%, 5%, 7%) (in vitro) as well as rice varieties and ameliorant (BNMs, compost) (in vivo). The results showed that BNMs affected average sprout height and germination rates on a laboratory scale. BNMs derived from an activated OPEFB rate of 5% produce the highest percentage of plant life (49.2%) (in vivo). Meanwhile, S. balangeran compost affects the percent of plant life (45.8%). The combination of BNMs and compost application can be applied to peat rice to increase productivity and maintain peatlands’ fertility.
Excitons and trions in WSSe monolayers
Authors: Pucko Katarzyna Olkowska , Blundo Elena , Zawadzka Natalia , Cianci Salvatore , Vaclavkova Diana , Kapuściński Piotr , Jana Dipankar , Pettinari Giorgio , Felici Marco , Nogajewski Karol , Bartoš Miroslav , Watanabe Kenji , Taniguchi Takashi , Faugeras Clement , Potemski Marek , Babiński Adam , Polimeni Antonio , Molas Maciej R
Published: December 2022

The possibility of almost linear tuning of the band gap and of the electrical and optical properties in monolayers (MLs) of semiconducting transition metal dichalcogenide (S-TMD) alloys opens up the way to fabricate materials with on-demand characteristics. By making use of photoluminescence spectroscopy, we investigate optical properties of WSSe MLs with a S/Se ratio of 57/43 deposited on SiO2/Si substrate and encapsulated in hexagonal BN flakes. Similarly to the ‘parent’ WS2 and WSe2 MLs, we assign the WSSe MLs to the ML family with the dark ground exciton state. We find that, in addition to the neutral bright A exciton line, three observed emission lines are associated with negatively charged excitons. The application of in-plane and out-of-plane magnetic fields allows us to assign undeniably the bright and dark (spin- and momentum-forbidden) negative trions as well as the phonon replica of the dark spin-forbidden complex. Furthermore, the existence of the single photon emitters in the WSSe ML is also demonstrated, thus prompting the opportunity to enlarge the wavelength range for potential future quantum applications of S-TMDs.
Electricity access in Uganda’s slums: multi-stakeholder perspectives from Kampala
Authors: Yaguma Penlope , Parikh Priti , Mulugetta Yacob
Published: December 2022

Uganda’s rapid urbanisation poses service delivery challenges, particularly to the poorest neighbourhoods which are home to over half of the urban population. Only 63% of urban households have access to grid-electricity, and access deficits are most felt in slums despite their proximity to the grid. This study investigated the electricity access challenge in Uganda’s slums and the socio-political issues that shape access, from the perspective of multiple stakeholders. Using mixed methods, eight semi-structured interviews were conducted with key stakeholders and surveys (N = 35) conducted in Nakulabye slum, Kampala. The supply-side barriers identified were low consumption loads in households which makes electricity provision financially unviable for the utility, insecure land tenure and inadequate housing which present practical and safety barriers. High costs and tariffs constrain access, as does poor quality and unreliable supply, and inadequate infrastructure. Regardless, households use electricity beyond simply lighting and phone charging, and a variety of businesses in the slum rely on electricity. The interviews revealed tensions in the priorities of different stakeholder groups, with the regulator striving to balance the interests of the utility, policymakers, and end-users. Wider issues emerged as the politicization of service delivery, limited data and capacity of city councils, and influences from external actors and events. Understanding local contexts is crucial, because prevailing policy regimes and socio-political environments either stifle or foster electricity access for low-income groups. The energy injustices and access deficits were acknowledged by all respondents, but there were differences in opinion regarding the root causes of the challenge, which could have negative implications for solution-finding efforts. Generally, the extent of the challenges faced is unknown outside the slum communities, and future work could explore the lived experiences of electricity access, to inform equitable electricity provision.
Constructing hierarchical porous structure in microsized silicon/carbon nanotubes composite anode with LiF-rich solid-electrolyte interfaces for highly stable lithium-ion batteries
Authors: Liang Meiying , Liu Ji , O’Shea Ailis , Nicolosi Valeria
Published: December 2022

Lithium-ion batteries (LIBs) with silicon microparticle anodes provide a high capacity, low cost, low environmental impact, and ease of production. However, the rapid capacity degradation and low Coulombic efficiency (CE) are impediments to their further development and commercialization, which are mainly caused by large volume variation and unstable solid–electrolyte interface (SEI) of silicon. To break this bottleneck, here, we demonstrate that designing silicon microparticles with nanoporous structure (PSi) and confining the PSi in the carbon nanotube (CNT) segregated network can effectively suppress the volume expansion of silicon, enabling the fabrication of high-performance electrodes. The rate capability and cycling performance of the electrode are further improved by creating a hierarchical open porous structure for the PSi-CNT composite anodes via freeze drying. In addition, the mixTHF electrolyte was employed to get a thin and uniform SEI, which can reduce the breakage of SEI during cycling and improve the CE and stability of the LIBs. As a result, the PSi-CNT composite anode delivers a high specific capacity of 3210.1 mAh g−1at 1/15 °C rate and an initial Coulombic efficiency of 87.3%. After 100 cycles, the capacity could be maintained at over 2000 mAh g−1with 99.5% CE. In addition, hierarchical porous structured PSi-CNT composites exhibit excellent rate performance, the specific capacity could reach 2264.5 mAh g−1at 5 °C rate. The work suggests several effective solutions that could be used to facilitate the future commercialization of silicon anodes.
The Mordell-Weil theorem for certain 𝑡-modules
Authors: Kuan Yen-Liang
Published: December 2022

Poonen proved an analogue for Drinfeld modules of the Mordell-Weil theorem. We shall generalize his results to the case of

t
t

-modules which have the height property. Moreover, we also prove a Mordell–Weil theorem for certain

t
t

-modules which lack the height property. In particular, let

A
A

be the polynomial ring in one variable

θ
\theta

over the finite field

F

q

\mathbb {F}_q

with the quotient field

K
K

. Let

(
E
,
ϕ
)

(E, \phi )

be an iterated extension of the tensor powers of the Carlitz module defined over

K
K

. We show that the

F

q

[
t
]

\mathbb {F}_q[t]

-module

E
(
K
)

E(K)

is isomorphic to the direct sum of its torsion module, which is finite, with a free

F

q

[
t
]

\mathbb {F}_q[t]

-module of rank

ℵ
0

\aleph _0

.
1-Point functions for symmetrized Heisenberg and symmetrized lattice vertex operator algebras
Authors: Mason Geoffrey , Mertens Michael
Published: December 2022

We obtain explicit formulas for the

1
1

-point functions of all states in the symmetrized Heisenberg algebra

M
+

M^+

and symmetrized lattice vertex operator algebras

V
L
+

V_L^+

. For this we employ a new

Z

2

\mathbf {Z}_2

-twisted variant of so-called Zhu recursion.
Main Causal Agents of Occupational Asthma in France, Reported to the National Network for Occupational Disease Vigilance and Prevention (RNV3P) 2001–2018
Authors: Lucas D , Robin C , Vongmany N , Dewitte J D , Loddé B , Pougnet R , Larabi L ,   RNV3P members
Published: December 2022

Objectives

The definition of work-related Asthma (WRA) has changed in recent years and new etiologies and agents have been identified. The aim of this study is to describe the main causal agents of WRA in France in the period 2001–2018 in the main work sectors.

Methods

Data were collected from the French national network of occupational health surveillance and prevention [Réseau National de Vigilance et de Prévention des Pathologies Professionnelles (RNV3P)], Data between 2001 and 2018 with at least a probable or certain association with one occupational agent, were included.

Results

Work sectors with more cases OF WRA included personal service activities (10.6%), food industry (10.2%) and healthcare activities (7.6%). WRA cases were most frequently related to flour (10%), quaternary ammoniums compounds (5.3%), isocyanates (5.1%) and cleaning products (4.8%).

Conclusion

Occupational exposure to specific agents capable of causing WRA is still present, and four agents represent more than 25% of the cases. Actions to prevent respiratory exposure are still relevant.