bluuebunny/crossref_metadata_2025 huggingface dataset:
Servitised property and personality: theorising servitisation through the personality theory of property
Authors: Ouyang Jie
Published: February 2024

This Article aims to elucidate servitisation through the lens of Hegel’s personality theory, which justifies property based on its role in shaping our identity. The growing prominence of servitisation enables us to interact with and derive benefits from things not only through ownership but also through contractual access. In this light, it is submitted that the personality justification offers a helpful theoretical framework to inform a clearer conception of servitisation, which in turn sheds illuminating light on its effective legal shaping and regulation. Through the lens of personality theory, I argue that long-term servitisation is functionally equivalent to formal property in promoting the actualisation of personhood, while the short-term counterpart supports the experimentation of personality. The relational nature of Hegelian property is reinforced in servitisation. Accordingly, a functional approach to property lends itself to the proper regulation of servitisation, where contracts could be employed to set out the governance framework for servitised property. Legal regulation on servitisation should play both protective and facilitative roles in the servitised economy.
The British Occupation and the Making of Democracy in Italy and Germany, 1943–1949
Authors: Erlichman Camilo , Corduwener Pepijn
Published: February 2024

Over the past two decades, historians have become increasingly fascinated by the question of what enabled the emergence of a stable model of democracy in post-war Western Europe, characterized by the persistence of pre-war elites and top-down forms of decision-making. This article reveals the importance of the British occupations during and after the Second World War in fostering this model of democracy. It does so by comparing and weaving together British occupation strategies in Germany and Italy between 1943 and 1949. Based on a novel examination of archival sources, it demonstrates that British ruling strategies influenced the form of democracy that emerged in these two states. As such, the article reveals the centrality of ‘indirect rule’ practices and their multifaceted impact. Building on imperial precedents, the occupations were primarily run through pre-existing local elites who commanded authority and influence amongst the population. The article argues that this choice explains why the British produced, first, functioning occupation regimes and, subsequently, contributed to the emergence of remarkably stable democracies. At the same time, however, this ruling strategy aided the creation of political regimes that were elite-led and that strongly limited popular participation, leaving many democratic aspirations unfulfilled.
The Interview: John Trevor-Allen
Authors: Breslin Mike
Published: February 2024

John Trevor-Allen, the outgoing President of CILIP – the Chartered Institute of Library and Information Professionals – talks to LIM editors Mike and Jas Breslin about his own career as a librarian, the challenges facing the profession and why every librarian is also a superhero. Well, sort of …
If You Build it, They Will Come: Collection Management of Construction Contracts
Authors: O'Malley Debra
Published: February 2024

Working with construction contracts can be a real challenge for information professionals due to the confusing way in which they are often named, the sheer number of editions and amendments, the differing terminology that's employed and many other factors. Here Debra O'Malley, Senior Information Services Officer at Pinsent Masons, threads her way through the labyrinth of construction law while providing an overview of the vast range of contracts available and where they can be found.
Mercury Mobility in Epibenthic Waters of a Deltaic Environment
Authors: Cossa Daniel , Dang Duc Huy , Thomas Bastien
Published: February 2024

Mercury (Hg) cycling at the sediment‐water interfaces (SWI) encompasses multiple homogeneous and heterogeneous biogeochemical reactions whose result is not yet elucidated. Estuarine SWIs, where the organic matter mineralization is active, constitute experimental sites particularly suitable for scrutinizing Hg speciation and mobilization. Here, we present high‐resolution vertical concentration profiles of Hg species, including inorganic divalent Hg () and monomethyl Hg (MMHg) in solid and dissolved (<0.22 μm) phases, on both sides of the SWI of the proximal part of the Rhône prodelta (northwestern Mediterranean Sea) using sediment cores and dialyzers implemented for a 67‐day‐long period. Concentrations of the dissolved species were <0.10 nM in the sediment pore waters but reached up to 0.58 nM in the epibenthic water zone, a concentration level that is ∼200 times higher than that of the water column. Conversely, MMHg concentrations were low (<0.5 pM) above the SWI and increased to up to 4.6 pM in the sulfate‐reducing zones of the sediment. The dynamic of the Hg species interconversions was explored using one‐dimensional transport‐reaction equations. This model allowed us to constrain the depth intervals where various species are produced or consumed and to approximate the reaction rates. We conclude that the epibenthic zone of the Rhône prodelta is a location of intense mobilization of inorganic HgII associated with organic matter mineralization and MMHg distribution in pore water is controlled by microbiological in situ reactions, but sedimentary MMHg does not diffuse in the overlying water column.
The value of genomic testing in severe childhood speech disorders
Authors: Meng Yan , Best Stephanie , Amor David J. , Braden Ruth , Morgan Angela T. , Goranitis Ilias
Published: February 2024

With increasing gene discoveries for severe speech disorders, genomic testing can alter the diagnostic and clinical paradigms, enabling better life outcomes for children and their families. However, evidence on the value of the outcomes generated is lacking, impeding optimal translation into health care. This study aims to estimate the value and uptake of genomic testing for severe childhood speech disorders. A discrete choice experiment was undertaken to elicit preferences for genomic testing from the perspective of the Australian public (n = 951) and parents of children experiencing severe speech disorder (n = 56). Choice attributes associated with genomic testing were identified through focus groups. A Bayesian D-efficient design was used to develop choice scenarios and choice data were analyzed using a panel error component mixed logit model and a latent class model. Statistically significant preferences were identified across all seven attributes. The mean monetary value of the benefits of genomic testing relative to standard diagnostic care in Australia was estimated at AU$7489 (US$5021) and AU$4452 (US$2985) from the perspectives of the Australian public and families with lived experience of severe speech disorders, with a corresponding test uptake of 94.2% and 99.6%. To ensure fair prioritization of genomics, decision-makers need to consider the wide range of risks and benefits associated with genomic information.
Gas migration characteristics in vehicle tank under different ventilation conditions
Authors: Wang Yinqing , Yang Chunli , Liu Yan , Li Xiangchun
Published: February 2024

In recent years, due to the frequent occurrence of accidents in confined space operations, horizontal ammonia tank trucks with higher accident frequencies were selected for numerical simulation research through comparative analysis. The ammonia concentration variation characteristics of horizontal ammonia tank cars were simulated under four conditions: natural ventilation with 0° incoming air, natural ventilation with 45° incoming air, mechanical ventilation with extraction, and mechanical ventilation with compression. The results indicate that natural ventilation requires 48 h to reduce the ammonia concentration to a safe range for operation, while mechanical ventilation reduces the ammonia concentration to infinity and approaches zero within 30 min according to regulations, making the working environment safer; Set up monitoring points inside the tank to monitor the gas disturbance inside the tank at different wind speeds. Based on the ammonia concentration cloud map and the monitoring point wind speed, it can be concluded that local ammonia accumulation is more likely to occur on both sides of the tank due to poor ventilation. Comparing and analyzing the simulated values with theoretical calculations and experiments, it was found that there are differences in the degree of gas change but the overall trend is the same. This indicates that ventilation simulation and the determination of ammonia migration characteristics have practical significance for guiding on-site operations.
Geospatial modelling of farmer–herder interactions maps cultural geography of Bronze and Iron Age Tibet, 3600–2200 BP
Authors: Chen Xinzhou , Lü Hongliang , Liu Xinyi , Frachetti Michael D.
Published: February 2024

Tibetan cultures reflect deeply rooted, regional interactions and diverse subsistence practices across varied high-altitude environments of the Tibetan Plateau. Yet, it remains unclear how these cultural relationships and social interactions took shape through time and how they were influenced by ecologically oriented behavioral strategies (e.g. mobility) emerging in prehistory. Recent applications of network analysis provide novel tools to quantitatively measure shared forms of material culture, but there have been fewer attempts to couple social network analysis with fine-grained geospatial modelling of prehistoric human mobility in Tibet. In this study, we developed an integrated high-resolution geospatial model and network analysis that simulates and correlates subsistence-based mobility and ceramic-based cultural material connectivity across the Tibetan Plateau. Our analysis suggests that (1) ecologically driven patterns of subsistence-based mobility correspond geographically with Bronze and Iron Ages settlement patterns across the Tibetan Plateau; (2) diverse material interaction networks among communities within western and central Tibet and trans-Himalayan connectivity across the broader Inner Asian Mountain Corridor can be linked to modeled differences in regional networks of subsistence mobility. This research provides ecological and archaeological insights into how subsistence-oriented mobility and interaction may have shaped documented patterns of social and material connectivity among regional Bronze and Iron Age communities of the Tibetan Plateau, prompting a reconsideration of Tibet's long-term cultural geography.
Sarcopenia prediction using shear-wave elastography, grayscale ultrasonography, and clinical information with machine learning fusion techniques: feature-level fusion vs. score-level fusion
Authors: Yi Jisook , Hahn Seok , Oh Kangrok , Lee Young Han
Published: February 2024

This study aimed to develop and evaluate a sarcopenia prediction model by fusing numerical features from shear-wave elastography (SWE) and gray-scale ultrasonography (GSU) examinations, using the rectus femoris muscle (RF) and categorical/numerical features related to clinical information. Both cohorts (development, 70 healthy subjects; evaluation, 81 patients) underwent ultrasonography (SWE and GSU) and computed tomography. Sarcopenia was determined using skeletal muscle index calculated from the computed tomography. Clinical and ultrasonography measurements were used to predict sarcopenia based on a linear regression model with the least absolute shrinkage and selection operator (LASSO) regularization. Furthermore, clinical and ultrasonography features were combined at the feature and score levels to improve sarcopenia prediction performance. The accuracies of LASSO were 70.57 ± 5.00–81.54 ± 4.83 (clinical) and 69.00 ± 4.52–69.73 ± 5.47 (ultrasonography). Feature-level fusion of clinical and ultrasonography (accuracy, 70.29 ± 6.63 and 83.55 ± 4.32) showed similar performance with clinical features. Score-level fusion by AdaBoost showed the best performance (accuracy, 73.43 ± 6.57–83.17 ± 5.51) in the development and evaluation cohorts, respectively. This study might suggest the potential of machine learning fusion techniques to enhance the accuracy of sarcopenia prediction models and improve clinical decision-making in patients with sarcopenia.
Binding behavior of receptor binding domain of the SARS-CoV-2 virus and ivermectin
Authors: Gossen Kasidy R. , Zhang Meiyi , Nikolov Zivko L. , Fernando Sandun D. , King Maria D.
Published: February 2024

The COVID-19 pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), sparked an international debate on effective ways to prevent and treat the virus. Specifically, there were many varying opinions on the use of ivermectin (IVM) throughout the world, with minimal research to support either side. IVM is an FDA-approved antiparasitic drug that was discovered in the 1970s and was found to show antiviral activity. The objective of this study is to examine the binding behavior and rates of association and dissociation between SARS-CoV-2 receptor binding domain (RBD), IVM, and their combination using aminopropylsilane (APS) biosensors as surrogates for the hydrophobic interaction between the viral protein and human angiotensin-converting enzyme 2 (ACE2) receptors to determine the potential of IVM as a repurposed drug for SARS-CoV-2 prevention and treatment. The IVM, RBD, and combination binding kinetics were analyzed using biolayer interferometry (BLI) and validated with multiple in silico techniques including protein–ligand docking, molecular dynamics simulation, molecular mechanics-generalized Born surface area (MM-GBSA), and principal component analysis (PCA). Our results suggest that with increasing IVM concentrations the association rate with the hydrophobic biosensor increases with a simultaneous decrease in dissociation. Significant kinetic changes to RBD, when combined with IVM, were found only at a concentration a thousand times the approved dosage with minimal changes found over a 35-min time period. Our study suggests that IVM is not an effective preventative or treatment method at the currently approved dosage.
Demographic and clinical characteristics of patients with zinc deficiency: analysis of a nationwide Japanese medical claims database
Authors: Yokokawa Hirohide , Morita Yusuke , Hamada Izumi , Ohta Yuji , Fukui Nobuyuki , Makino Nao , Ohata Emi , Naito Toshio
Published: February 2024

Zinc deficiency, affecting more than 2 billion people globally, poses a significant public health burden due to its numerous unfavorable effects, such as impaired immune function, taste and smell disorders, pneumonia, growth retardation, visual impairment, and skin disorders. Despite its critical role, extensive large-scale studies investigating the correlation between patient characteristics and zinc deficiency still need to be completed. We conducted a retrospective, cross-sectional observational study using a nationwide Japanese claims database from January 2019 to December 2021. The study population included 13,100 patients with available serum zinc concentration data, excluding individuals under 20 and those assessed for zinc concentrations after being prescribed zinc-containing medication. Significant associations with zinc deficiency were noted among older adults, males, and inpatients. Multivariate analysis, adjusting for age and sex, indicated significant associations with comorbidities, including pneumonitis due to solids and liquids with an adjusted Odds Ratio (aOR) of 2.959; decubitus ulcer and pressure area (aOR 2.403), sarcopenia (aOR 2.217), COVID-19 (aOR 1.889), and chronic kidney disease (aOR 1.835). Significant association with medications, including spironolactone (aOR 2.523), systemic antibacterials (aOR 2.419), furosemide (aOR 2.138), antianemic preparations (aOR 2.027), and thyroid hormones (aOR 1.864) were also found. These results may aid clinicians in identifying patients at risk of zinc deficiency, potentially improving care outcomes.
Effects of mouthwash on periodontal pathogens and glycemic control in patients with type 2 diabetes mellitus
Authors: Matayoshi Saaya , Tojo Fumikazu , Suehiro Yuto , Okuda Makoto , Takagi Misato , Ochiai Marin , Kadono Maika , Mikasa Yusuke , Okawa Rena , Nomura Ryota , Itoh Yoshito , Itoh Naoto , Nakano Kazuhiko
Published: February 2024

Periodontitis is known to be associated with type 2 diabetes mellitus (T2DM), and gargling with mouthwash is known to reduce the incidence of periodontitis by inhibiting periodontal pathogens. However, the effects of mouthwash on oral and systemic conditions in patients with T2DM remain unknown. In this study, we investigated the effects of gargling with mouthwash on the number of red complex species, including Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia, and HbA1c levels in patients with T2DM. Patients were instructed to gargle with water for 6 months, followed by gargling with mouthwash containing chlorhexidine gluconate for the subsequent 6 months. At each clinic visit, saliva was collected and bacterial DNA was extracted to detect red complex species using the polymerase chain reaction technique. The HbA1c level was determined using a blood sample. The number of red complex species significantly decreased in younger or male patients who gargled with mouthwash. Furthermore, HbA1c levels significantly decreased in younger patients or patients with higher HbA1c levels who gargled with mouthwash. These results suggest that gargling with mouthwash reduces the number of red complex species and improves the hyperglycemic status in patients with T2DM, especially younger patients.
On the nonlinearity of the foreperiod effect
Authors: Houshmand Chatroudi Amirmahmoud , Mioni Giovanna , Yotsumoto Yuko
Published: February 2024

One of the frequently employed tasks within the implicit timing paradigm is the foreperiod task. The foreperiod is the time interval spanning from the presentation of a warning signal to the appearance of a target stimulus, during which reaction time trajectory follows time uncertainty. While the typical approach in analyzing foreperiod effects is based on linear approximations, the uncertainty in the estimation of time, expressed by the Weber fraction, implies a nonlinear trend. In the present study, we analyzed the variable foreperiod reaction times from a relatively large sample (n = 109). We found that the linear regression on reaction times and log-transformed reaction times poorly fitted the foreperiod data. However, a nonlinear regression based on an exponential decay function with three distinctive parameters provided the best fit. We discussed the inferential hazards of a simplistic linear approach and demonstrated how a nonlinear formulation can create new opportunities for studies in implicit timing research, which were previously impossible.
Citizen science approach to assessing patient perception of MRI with flexible radiofrequency coils
Authors: Nohava Lena , Czerny Raphaela , Tik Martin , Wurzer Dagmar , Laistler Elmar , Frass-Kriegl Roberta
Published: February 2024

Magnetic Resonance Imaging (MRI) is a major medical imaging modality, which is non-invasive and provides unique soft tissue contrast without ionizing radiation. The successful completion of MRI exams critically depends on patient compliance, and, thus patient comfort. The design, appearance and usability of local MRI radiofrequency (RF) coils potentially influences the patients’ perception of the exam. However, systematic investigations and empirical evidence for these aspects are missing. A questionnaire specifically evaluating the impact of RF coils on patient comfort in MRI would be a valuable addition to clinical studies comparing the performance of novel flexible RF coils with standard rigid coils. This paper describes the development of such a questionnaire in the scope of a citizen science (CS) initiative conducted with a group of students at the upper secondary school level. In this work, the CS initiative is presented in the format of a case report and its impact on scientific projects and the students’ education is outlined. The resulting questionnaire is made available in German and English so as to be directly applicable by researchers working on the clinical evaluation of novel RF coils or the comfort evaluation of specific hardware setups in general.
Biomaterials for Water Purification: Dyes, Heavy Metals, and Pharmaceuticals
Authors: Adimule Vinayak , Manhas Nidhi , Rajendrachari Shashanka
Published: February 2024

In this chapter, the emphasis is on biowaste materials generally characterized by various functional groups, such as carboxyl, amine, and hydroxyl, that are used for the removal of heavy metals. The chapter discusses chitosan-based polymeric membranes for water purification, where chitosan-containing polymeric nanocomposites are used for water purification systems, as well as for adsorption of Cu(ii) and Zn(ii) ions in water and for biosorption of organic dyes. It is essential that adsorbent membranes used are effective in the removal of toxic metals, heavy metals, drugs, and dyes. For example, phosphate cellulose as biomaterial under different pH conditions can be used for effective removal of the drug ranitidine from water. The use of biowaste as an adsorbent to effectively remove toxic heavy metals, dyes, and drugs is challenging due to their nature with respect to adsorption, recovery, effectiveness, and recyclability. Biowastes obtained from agriculture, in particular, have been utilized as effective biosorbents in the water purification process. Biosorption is effective for removal of heavy metals from waste water compared with conventional methods. However, chitosan-based polymeric materials possess a high adsorption efficiency compared to biowaste materials, for the effective removal of heavy metals, various drugs, dyes, etc. This chapter also focuses on the mechanisms of adsorption of chitosan-based polymeric materials and biowaste products for effective removal of various heavy metals, drugs, and dyes, and their involvement in high adsorption efficiency, stability, and low cost.
Structural diversity in the membrane-bound hIAPP dimer correlated with distinct membrane disruption mechanisms
Authors: Qiao Qin , Wei Guanghong , Song Zhijian
Published: February 2024

Free energy landscape of membrane-bound hIAPP dimer indicates its diverse structural ensemble.
Serum antibody screening using glycan arrays
Authors: Marglous Samantha , Brown Claire E. , Padler-Karavani Vered , Cummings Richard D. , Gildersleeve Jeffrey C.
Published: February 2024

Glycan microarrays provide a high-throughput platform to rapidly interrogate serum anti-glycan antibodies, identify new biomarkers for a variety of conditions, and analyze the immune system's response to vaccines and other treatments.
Enhanced average power factor and ZT value in PbSe thermoelectric material with dual interstitial doping
Authors: Xu Liqing , Wang Xiaoying , Wang Yang , Gao Zhibin , Ding Xiangdong , Xiao Yu
Published: February 2024

High PFave of 24.18 μW cm−1 K−2 and ZTave of 1.01 at 300–773 K have been achieved in n-type Pb1.02Se–0.2%Cu thermoelectric through dual Pb and Cu interstitial doping, and it exceeds other Se/S-based (Te free) n-type thermoelectric materials.
Dynamic behavior of floating magnetic liquid marbles under steady and pulse-width-modulated magnetic fields
Authors: Dayyani Hossein , Mohseni Alireza , Bijarchi Mohamad Ali
Published: February 2024

The manipulation of biocompatible magnetic liquid marbles, formed by wrapping magnetic nanoparticles around water droplets, on the water surface under the steady and variable magnetic fields.
Extracting lignin from sugarcane bagasse for methylene blue and hexavalent chromium adsorption in textile wastewater: a facile, green, and sustainable approach
Authors: Nguyen-Thi Nhu Y. , Nguyen Cuong Quoc , Le Dang Quang , De Tran Quang , Do-Thi Tuyet Nhung , Vu Thanh Luong Huynh
Published: February 2024

This study presents the process of extracting lignin from sugarcane bagasse collected in the Mekong Delta, Vietnam by the alkali method.
Water-chain mediated proton conductivity in mechanically flexible redox-active organic single crystals
Authors: Hossain Munshi Sahid , Ghosh Meena , Mondal Amit , P Ajmal , Saha Monochura , Reddy C. Malla , Kurungot Sreekumar , Bandyopadhyay Subhajit
Published: February 2024

Investigating the electrochemical features of proton-conducting flexible organic crystalline materials is crucial for the development of efficient energy storage and conversion devices.
Nickel single atom mediated phosphate functionalization of moss derived biochar effectively enhances electrochemical uranium extraction from seawater
Authors: Feng Huachuan , Dong Huanhuan , He Pan , He Junhui , Hu Enmin , Qian Zishu , Li Jin , Li Jiejie , Zhu Wenkun , Chen Tao
Published: February 2024

Electrochemical uranium extraction is considered a promising approach to obtain uranium resources from seawater.
Electrogenerated chemiluminescence imaging of plasmon-induced electrochemical reactions at single nanocatalysts
Authors: Tao Qian-Qian , Xu Cong-Hui , Zhao Wei , Chen Hong-Yuan , Xu Jing-Juan
Published: February 2024

Plasmon-induced electrochemical reactions at single plasmonic nanocatalysts were explored.
Synergetic impact of high-entropy microdoping modification in Na3V2(PO4)3
Authors: Kang Yahao , Lin Xitao , Tong Shuai , Zhu Wenlong , Wang Yang , Jia Min , Zhang Xiaoyu
Published: February 2024

High entropy Na3V1.9(Ca,Mg,Cr,Ti,Mn)0.1(PO4)3 doped with a trace amount of polyanions was successfully synthesized, which exhibited excellent electrochemical performance even at a 10C rate. A V4+/V5+ redox reaction was also achieved, which promoted the commercial application.
Photoinduced selective perfluoroalkylation of terminal alkynes via electron donor–acceptor complexes
Authors: Shi Xiaolin , Yu Bo , Zhou Xin , Yang Yong
Published: February 2024

An efficient photocatalytic method was developed for selective perfluoroalkylation of terminal alkynes via in-situ generated EDA complexes derived from a thymol anion and perfluoroalkyl iodides.
A survey on blockchain deployment for biometric systems
Authors: Sharma Surbhi , Dwivedi Rudresh
Published: February 2024

Blockchain technology has become an emerging area in recent years due to its capacity to improve the security, dependability, and resilience of distributed systems. Research based on this technique has impacted several firms, including banking, healthcare, data processing, remote sensing, and many others. The key characteristics of blockchain technology that make it appealing are data immutability, transparency, privacy, decentralization, and distributed ledgers. However, there is a chance of a privacy breach with sensitive biometric data. The purpose of this investigation is to examine blockchain‐based biometric applications research. It begins by determining the myriad ways that biometrics and blockchain may work together, including the storage and protection of biometric templates, identity management, and biometric authentication systems. Different biometric applications with respect to blockchain technology are also identified, along with the types of biometric data taken into account, features and capabilities of blockchain technology exploited, and blockchain technology frameworks employed. Finally, the authors seek to investigate blockchain concepts in the biometric domain by evaluating their pros and cons and summarizing the methods developed on blockchain for diverse biometric applications. Additionally, the applications of blockchain‐based biometric systems are highlighted before moving on to open research questions and potential future research areas.
An efficient quantum algorithm for ensemble classification using bagging
Authors: Macaluso Antonio , Clissa Luca , Lodi Stefano , Sartori Claudio
Published: February 2024

Ensemble methods aggregate predictions from multiple models, typically demonstrating improved accuracy and reduced variance compared to individual classifiers. However, they often come with significant memory usage and computational time requirements. A novel quantum algorithm that leverages quantum superposition, entanglement, and interference to construct an ensemble of classification models using bagging as an aggregation strategy is introduced. Through the generation of numerous quantum trajectories in superposition, the authors achieve B transformations of the training set with only operations, allowing an exponential enlargement of the ensemble size while linearly increasing the depth of the corresponding circuit. Moreover, when assessing the algorithm's overall cost, the authors demonstrate that the training of a single weak classifier contributes additively to the overall time complexity, as opposed to the multiplicative impact commonly observed in classical ensemble methods. To illustrate the efficacy of the authors’ approach, experiments on reduced real‐world datasets utilising the IBM qiskit environment to demonstrate the functionality and performance of the proposed algorithm are introduced.
Microclimatic perception and preference among market vendors in Jakarta, Indonesia
Authors: Ufaira Rifda Marwa , Bermanda Brianna Salsabila , Nastiti Anindrya , Kusumah Siska Widya Dewi , Amir Sulfikar
Published: February 2024

The Sustainable Development Goals (SDGs) call for liveable, sustainable cities and decent jobs. The lack of attention to outdoor space design has a significant impact on the livability of the urban outdoor environment. As tropical areas have experienced a one-degree Celsius increase in the last four decades, working outdoors can become unbearably distressing due to thermal discomfort. This study links SDGs 11 and 8 by focusing on thermal comfort and heat exposure among outdoor informal workers —the street vendors working in outdoor markets. The cohorts in our study are vulnerable to extreme heat due to their working conditions, and the informality of their work presents additional susceptibility to severe heat exposure due to the lack of physical and social protection. We conducted a cross-sectional survey to measure microclimatic perceptions, such as Thermal Sensation Vote (TSV) and preference, Humidity Sensation Vote (HSV) and preference, Wind Sensation Vote (WSV) and preference, Sun Sensation Vote (SSV), and preference, as well as overall comfort vote (OCV). The results are useful in providing a preliminary illustration of Jakarta’s microclimatic perceptions and thermal comfort from the perspective of vulnerable populations. We then discuss the impacts of thermal comfort on the city’s liveability.
E-learning and sustainable user: The model of academic performance in e-learning
Authors: Susanti Leni , Karim Nur Azmi , Ramdhani Yudi
Published: February 2024

Sustainability issues and the significance of academic performance in e-learning are intricately linked. E-learning can support the environmental issue (paperless), and sustainable learning system. Academic excellence produces individuals who are prepared to advocate for positive, long-lasting change in industry and society. Investigating issues pertaining to academic achievement, a study was undertaken to analyze academic performance models with the assistance of e-learning satisfaction. Utilizing a quantitative survey design, information was gathered from 663 students and analyzed with SmartPLS. The examination and evaluation are conducted in accordance with research hypotheses. The findings of the study indicate that satisfaction with e-learning is affected by perceived relatedness, competence, and levity, with playfulness having the greatest impact. Satisfaction with e-learning is crucial to establishing a productive learning environment in this instance. Additionally, academic achievement in e-learning is positively correlated with e-learning satisfaction, suggesting that students can attain higher levels of academic success through a gratifying learning experience. Hence, e-learning assumes a critical function in bolstering sustainable industrial progress while offering substantial advantages to both learners and society at large.
Study on the use of water and feed resources on beef cattle and dairy farms in Bandung Regency, West Java
Authors: Firdayati Mayrina , Notodarmojo Peni Astrini , Oginawati Katharina
Published: February 2024

Optimal utilization of limited resources, such as water and feed in beef and dairy cattle farms, is considered important. Considering that Indonesia aim to boost production to meet increasing demands, the lack of information of resource usage in this industry impedes the formulation of effective strategies for increasing production responsibly. Therefore, this study aims to bridge the information gap to enable sustainable development in the form of water and feed productivity analysis in beef and dairy farms. We interviewed farm owners and measured water use and feed consumption from various cattle farms in Bandung Regency. We found that beef cattle are more efficient in converting feed into produce (0.59 kg beef/kg feed) than dairy cattle (0.335 kg milk/ kg feed). However, beef cattle have lower water productivity (0.0297 kg beef/L) than dairy cattle (0.08 kg milk/L) excluding the water requirement for growing feed. In the case of adding water usage for growing grass feed with, the water productivity significantly reduced to 0.0023 kg beef/L and 0.0031 kg milk/L. Based on calculations, additional water intake is needed for beef and milk production, especially for growing cattle feed that cannot be met solely through rainwater and reuse of greywater.
Combination of activated carbon/ultrafiltration as pre-treatment for seawater reverse osmosis plants
Authors: Budiningsih Shafira , Laksono Sucipta , Adityosulindro Sandyanto , Suciningsih Larasati
Published: February 2024

Seawater Reverse Osmosis (SWRO) is a common technology to treat seawater to comply high freshwater demand. Currently, the main issue of seawater/brackish water as the potential sources for drinking water is vulnerable to organic pollutants. An effective pre-treatment is crucial to maintain the efficiency of SWRO for sustainable operation. Optimization of the process could be performed by a hybrid membrane combination using commercial Activated Carbon (AC) with based material coconut shell/coal and Ultrafiltration membrane (UF). For hybrid process, the activated carbon was continuously dosed into the pilot scale filtration employing PES Hollow Fiber membrane with active area of 4 m² and average pore size of 10 nm that represents a real operation filtration process (i.e., filtration flux, filtration time, backwashing, and cleaning in place), and was performed until 8 filtration cycle sequence. This study investigated membrane performance with combination technique PAC/UF and GAC/UF in Pilot scale experiments within resistance membrane and retention membrane. Combination of Activated Carbon/Ultrafiltration showed synergistic effects in the removal of organic content for COD 40%-96%, UV-VIS 43%-92% and Turbidity 73%-99%. High removal of organics pollutants (COD, UV-VIS and Turbidity) was attributed to small average pore distribution of Activated Carbon (<10 µm) that increase adsorption process. Moreover, hybrid Activated Carbon/UF adsorption kinetics can reduce filtration times to achieved optimal retention. Related to membrane performance, hybrid AC/UF resulted in less permeability declines almost double in first two filtration cycle and slightly less permeability decline until fifth cycle in comparison with single UF process. Better membrane performance can furtherly be explained from less irreversible fouling in case of AC/UF. Combination AC/UF enhanced the control of Irreversible fouling and resulted in better filtration performance as well as higher organic substance removal. Therefore, hybrid AC/UF could be seen as an effective system as pretreatment for SWRO.
Water availibility of Karo Lake, Obi Island, South Halmahera
Authors: Nuraprianisandi Siska , Abfertiawan Muhammad Sonny , Gultom Tonny H. , Gunardi Petrus , Syahroni Muharwan
Published: February 2024

Lake Karo is one of the largest water sources on Obi Island. Obi Island has a large potential for water resources that can be used optimally by the local communities. This hydrological analysis purposed to calculate the water availability in Karo Lake. Water availability is the amount of water that is estimated to continue to exist in a location with a certain amount and within a certain period of time. Water availability is calculated by dependable discharge using the Mock method. The basis for the calculation of the Mock method is to calculate the rain that falls on the water catchment area, some will be lost as evapotranspiration, some will immediately become surface runoff and some will absorb into the ground (infiltration). The analysis used climate data, topography, and the area of the water catchment area in the watershed. In order to obtain an accurate dependable discharge calculation, it is necessary to have long-term rainfall monitoring data. The data used in the calculation of the Mock method is monthly rainfall data for the last 20 years from Rainfall Station data around the study location. The results of Digital Elevation Model data processing, the catchment area in the Lake Karo watershed is 65.11 km2. Based on the results of calculations using Mock method, the water availability in Lake Karo is always available year-round with a dependable discharge of Q80 is 1.8 m3/second. The water availability can be used for any purpose of the local communities.
The development of inflow discharge for the karian multipurpose reservoir in the pursuit of reservoir management optimization
Authors: Mulyawati Ira , Siti Salami Indah Rachmatiah , Marselina Mariana , Sabar Arwin
Published: February 2024

Climate change and land cover modifications result in alterations in hydrological regimes. The demand for water and electrical energy continually rises along with population growth. Consequently, optimizing the Karian Multipurpose Reservoir (Hydroelectric Exploitation) operation requires considering hydrological regime changes. The Karian multipurpose reservoir is designed to meet water needs in Banten Province. The strategic policy for the Reservoir is to provide raw water at a rate of 14.6 m3/s. Of this, 9.1 m3/s is diverted to Tangerang Regency, and 5.5 m3/s is directed to Serang City through Ciujung River. Before being released into the Ciujung River, a flow of 5.5 m3/s is channeled through turbines to generate 1.8 MW of electricity. This study compares two models for estimating discharge to support Karian Reservoir management: (1) The Rainfall Conversion Ratio (CR) and Catchment Area, and (2) The Continuous model. The Rainfall CR and Catchment Area has a correlation value of 0.523 with CR KOICA, Absolute Relative Error (ARE) of 0.54, and Root Mean Square Error (RMSE) of 10.61. Meanwhile, the continuous model has a correlation value of 0.877 with CR KOICA, ARE of 0.18, and RMSE of 3.64. The results indicate the continuous model is the most effective in estimating input discharge.
Soil residue ecotoxicology from biosurfactant extraction for oily soil decontamination process
Authors: Lely Fitriyani , Edwan Kardena , Sukandar
Published: February 2024

Solvent extraction as part of oily soil decontamination process has been including rhamnolipid biosurfactant to be part for seeking its possibility for further implementation. Result of some researchers reported prospect of its implementation due to removal efficiency. This study reported post treatment process assessment to soil residue that remained after the completion of decontamination process. Soil toxicity examined involving Total Petroleum Hydrocarbon (TPH) concentration, Hydrocarbon Structure by using Gas Chromatography-Flame-Ionization Detection (GC-FID), Hydrocarbon bond identification by using Fourier Transform Infra-Red Spectroscopy (FTIR), Toxicity Characteristics Leaching Procedure (TCLP) analysis, Metal and Oxide Metal Content of the residual soil. Germination Index as biological indicator also involved as part of the study to give early indication of impact on residual treated soil. Germination index selected mung bean (Phaseolus radiatus) as object of study. Result showed that at residual soil TPH content could be reduced until 0.78%, there are simplification of hydrocarbon structure after treatment process included weakened of hydrocarbon bonding and concentration observed by FTIR. TCLP result showed residual soil was benign to the environment and Germination Index indicated improvement of mung beans germination after decontamination process.
Prospects of implementing the Extended Producer Responsibility (EPR) concept for used laptops in Bandung City, Indonesia
Authors: Chaerul Mochammad , Indrapta Haris Faza
Published: February 2024

Currently, laptop becomes an electronic product that is widely used by the public. Similar with other electronic products, a laptop potentially becomes a used product or waste if it no longer has the desired technical specifications and/or have passed their service life. The management of used laptop in Indonesia is currently not carried out institutionally and relies more on the informal sector, including unofficial shops or service points for further handling. This paper aims to determine the potential of implementing the concept of Extended Producer Responsibility (EPR) for the management of used laptops preffered by consumers and used laptop shops in the city of Bandung. Questionnaires were obtained from respondents consisting of 80 households and 83 used laptop shops and/or service points. There were 3 types of treatment that are dominantly carried out by respondents of consumers to their used laptops, namely : just keep them at home (46%), give them to other people (27%) and sell them to traders/service points (18%). Although 60% of the respondents did not know about EPR, it found that 81% of them were willing to pay more when buying a new laptop for handling used laptops and 90% were willing to follow the take back scheme as an alternative to implementing the EPR concept. Similar results were also obtained from respondents of used laptop shops/service places. 83% of the respondents did not know about EPR, 86% of them were willing to participate if the EPR concept was implemented, including through a willingness to pay a higher price for laptops to distributors (65%) and were willing to paticipate a take back scheme (82%). Although the results above show positive prospects for the EPR concept to be implemented, other stakeholders should be involved while proposing the most suitable scheme of the EPR concept.
Assessment of waste management practices and waste banks in urban areas of Indonesia: A case study of East Jakarta and Depok City
Authors: Dahlan Astryd Viandila , Putri Kezia Reniel , Tsaqib Abiyyu , Renata Zaneta Rahel
Published: February 2024

The rapid population growth in major cities in Indonesia, including East Jakarta and Depok City, has resulted in increased consumption patterns that have an impact on the quantity and quality of generated waste. These communities’ current waste management practices are inadequate, encompassing sorting, collection, and processing—evaluating existing waste management conditions involve sampling, observation, interviews, and questionnaires. In Pancoran Mas, the average waste generation was found to be 0.24 kg per person per day, with food waste comprising 51% and plastic waste 18%. Pulo Gebang exhibited similar results, with a waste generation rate of 0.22 kg per person per day, consisting of organic waste accounting for 46.7% and plastic waste at 19%. However, both districts have established Waste Banks, namely Hasvil (HWB) and Sekar Wangi (SWB) in Pancoran Mas and Pulo Gebang. The waste bank data revealed that HWB had a waste generation rate of 0.08 kg per person per day, while SWB had a rate of 0.12 kg per person per day, predominantly paper waste. HWB successfully reduced individual waste going to landfills by 33% for approximately 120 people, whereas SWB achieved a reduction of 52% for around 80 people.
The effect of human activities on Bali’s Silent Day (Nyepi) in 2022
Authors: Nuryanto Danang Eko , Permana Donaldi Sukma , Hidayanto Nurdeka , Rizal Jose , Heriyanto Eko , Harapan Ferdika Amsal , Fajariana Yuaning , Komalasari Kurnia Endah
Published: February 2024

During Nyepi, all activities are eliminated, including public services, such as closing access to land, sea, and air transportation routes that transit to Bali for one day. In 2022, the BMKG Research and Development Center observed air quality in Nyepi. The measurement aims to determine the relative reduction level of greenhouse gas (GHG) and particulate emissions on Nyepi Day compared to before and after. Greenhouse gases and particulates were measured for seven days, February 28 - March 6, 2022. The measurement locations were over 3 points: Denpasar Regional Office III, Karangasem Geophysics Post, and Jembrana Climatology Station. The results of this field measurement show that daily human activities significantly influence the concentration of pollutant gases and particulates in the air. During Nyepi Day, air concentration improves when all human actions are reduced. This is marked by a decrease in the air’s concentration of pollutant gases (CO, NO2) and dust particles. The reduction in the concentration of pollutant gases and dust particles did vary at each observation location; this was due to the sensitivity of the equipment, the character of each observation location, and the placement of measuring devices. Urban areas filled with community activities have experienced the greatest improvement in air quality compared to suburban areas. Order of measuring instruments close to the location of pollutant sources, even in suburban areas, will decrease the concentration of pollutant gases, similar to that in urban areas. The difference between PM25 data during Nyepi 2022 and the average PM25 for 2020 - 2022 shows a decrease in PM25 concentrations of around 47%, with the highest drop at night.
Hybrid wind turbine diagnostic system - a brief overview
Authors: Borowski Sylwester , Szubartowski Mirosław , Hujo Lubomir
Published: February 2024

The paper presents a short review of systems for diagnostics and forecasting the condition of wind turbines. Systems based on the analysis of data such as vibrations were indicated. Then, the SCADA system as a diagnostic tool was discussed. The article indicates the need to create a hybrid system based on SCADA that can predict the condition of wind turbine blades.
Analysis of the possibility of using electric vehicles in a transport company
Authors: Wilczarska Joanna , Prusiewicz Adrian , Kuliś Ewa , Martinez Jose Miguel
Published: February 2024

The article analyses the possibility of stopping electric vehicles in a transport company. Courier companies use electric vehicles to make short-distance deliveries in urban areas. Public transport is also contributing to the popularity of electric vehicles, which reduce harmful emissions in cities.