bluuebunny/crossref_metadata_2025 huggingface dataset:
Public Health Framework for Smart Cities within the Comprehensive Approach to Sustainability in Europe: Case Study of Diabetes
Authors: Lapão Luís Velez , Correia Jorge César , Jevtic Marija
Published: February 2023

European cities should address the climate change challenges, improving quality of life and reducing costs. They need potential smart and digital approaches. Public health (PH) has recognized climate change as a major challenge. The development of urban policies should be guided by evidence-based PH practices. The environmental health determinants and the climate crisis now represent a clear PH threat. The core of the Smart City is sustainability, and its basic condition is active PH. The inclusion of public health into the pillars of the Smart City concept to contribute toward mitigating PH crises, such as the COVID-19 pandemic, is a framework for action. Design Science Research Methodology (DSRM) is used to elicit a Smart Public Health City (SPHEC) framework. A set of PH and smart city experts participated in the DSRM process, using diabetes as a case study. The European Green Deal served as a blueprint for this transformational change toward a healthier and more sustainable city. The SPHEC framework was defined by elucidating clearly the several dimensions of the PH functions within a digital city, via the identification of a set of digital PH services that are required to support the SPHEC framework. This allows for an assessment of the actual benefits that are obtained with the digital health services, and provides evidence for guiding decision-making. The role of digital PH services emerges from the analysis of the SPHEC framework, through the development of proper digital health services within the smart city, strengthening capacity and resilience in future climate emergencies, and motivating policy makers to take this challenge more seriously.
Revisiting Leadership in Schools: Investigating the Adoption of the Dubai Inclusive Education Policy Framework
Authors: Massouti Ayman , Shaya Nessrin , Abukhait Rawan
Published: February 2023

This study examined the prevalent leadership practices in the implementation of the Dubai Inclusion Education Policy Framework (DIEPF), which paves the way for elaborating on key nuances relating to the prospects and challenges of meeting the United Arab Emirates’ (UAE) federal requirement of educating all students, including students identified as experiencing special educational needs and disabilities (SEND) in a common learning environment. A qualitative phenomenological research design was employed, where data was collected through semi-structured interviews with a group of individuals who assumed a senior leading role in SEND departments, led inclusive practices at the school level, or were experts in special education studies in the UAE. The final sample consisted of 21 interviewees, of which 11 are heads of SEND departments, 6 are senior executive leaders at the designation of principal or vice principal, and 4 are experts in special education employed in reputable higher education institutions in the UAE. The analysis resulted in identifying five themes as critical key factors in inclusive education implementation and several sub-theme components. As an additional dimension, an emergent theme was derived, expanding the theoretical boundaries of the DIEPF. Finally, theoretical and managerial implications for effective inclusive practices in school settings are offered.
GlasSphalt: A Borosilicate Based Sustainable Engineering Material for Asphalt Pavements
Authors: Hamid Ahsen , Ahmad Naveed , Zaidi Bilal , Khalid Raja Abubakar , Hafeez Imran , Hussain Jawad , Khitab Anwar , Kırgız Mehmet Serkan
Published: February 2023

Large quantities of waste glass generated around the world are a source of environmental pollution and burden on landfill capacities. This glass can be brought in use by incorporating it in asphalt pavements as a replacement for aggregate particles. This research aims at evaluation of various structural, functional and durability parameters of asphalt containing waste borosilicate glass (BSG). Optimum binder content and volumetric characters were accessed using Marshall mix design method, wheel tracking test was used to evaluate the rutting resistance, and four-point beam fatigue test was used to measure the resistance against fatigue cracking. Deformation characteristics were studied using dynamic modulus test, and British pendulum test and aggregate polishing value test were used to study the skid resistance. Finally, moisture damage was evaluated using rolling bottle test. The results revealed that increasing BSG content reduces the optimum binder content requirements of final mixes. Maximum stability, maximum dynamic modulus, and rut resistance were observed at 10% dosage of BSG. Beam fatigue test results showed that BSG negatively affects the fatigue resistance of asphalt. However, this negative effect was insignificant for 5% dosage and slightly significant for 10% dosage, beyond which, considerable reduction in fatigue life was observed. Moisture damage studies showed that BSG had less affinity to adhere to bitumen, particularly when using dosage greater than 10% by weight. On one hand, skid resistance test showed that with the increasing quantity of BSG, skid resistance increased.
Strengthening Stakeholder Partnership in Plastics Waste Management Based on Circular Economy Paradigm
Authors: Prabawati Anindita , Frimawaty Evi , Haryanto Joko T.
Published: February 2023

Indonesia became the second-largest global marine plastics contributor, with annual plastic marine debris estimated at 0.48–1.29 million metric tons per year. In Jakarta’s coastal area, 59% of the marine litter is plastics. The circular economy is a new paradigm adopted in plastic waste management in Indonesia, and research in this area continues to grow. This circular economy paradigm requires sufficient collaboration among stakeholders in plastic waste management. However, the data on Indonesia’s best partnership scheme for plastic waste management is still lacking. This study aims to fill the gap by examining the most feasible partnership scheme that brings the most effective plastics waste handling and economic benefit. This study used a quantitative questionnaire followed by an interview to provide information about stakeholders’ participation in plastic waste management in Central Jakarta. A stakeholder analysis was employed to assess the best partnership scheme. The result finds that the public-government partnership is the most feasible and sustainable partnership to be implemented in Central Jakarta, Indonesia. Collaboration between the public and government could enlarge service coverage in managing plastic waste based on the circular economy paradigm. Strengthening the public-government scheme contributes positively to the plastics collection rate, recycling rate, benefit-sharing, and positive perspective among stakeholders.
A Probabilistic Hill-Climbing Algorithm for the Single-Source Transportation Problem
Authors: Pongchairerks Pisut
Published: February 2023

This paper proposes a probabilistic hill-climbing algorithm, called PH, for the single-source transportation problem (STP). PH is a tree search algorithm in which each node contains an assignment problem (AP) transformed from the STP being solved. The transformation converts each source’s product units into product lots; a product lot equals multiple product units. The AP aims to find the optimal assignment of product lots to destinations to minimize the total assignment cost. PH uses the Hungarian method to find the optimal solution of the AP in every node, which is a solution of the STP. For the AP of the root node (as the initial current node), the number of each source’s product lots is set to be small enough to guarantee the generation of a feasible solution for the STP. To generate every subsequent level, the current node is branched into multiple child nodes, in which the number of child nodes equals the number of sources in the STP. The AP of each child node is modified from the AP of the current node by adding one more product lot into a specific different source. Consequently, each child node provides a solution that is better than or the same as the current node’s solution; however, some child nodes’ solutions may be infeasible for the STP due to the insufficiency of a source’s capacity. If all of the child nodes cannot find a better feasible solution than the current node’s solution, PH stops its procedure. To diversify the search, PH selects one of the child nodes as the new current node in a probabilistic way, instead of always selecting the best child node. The experiment’s results in this paper reveal the performance of the three variants of PH.
How Smart Technologies Affect the Decision-Making and Control System of Food and Beverage Companies—A Case Study
Authors: Lavorato Domenica , Piedepalumbo Palmira
Published: February 2023

In order to cope with the current competitive scenario, more and more companies are increasingly challenged to redefine their current decision-making and control models in favour of lean, efficient and digitalised models. Recent advances in digital technologies offer new opportunities for management to digitise and automate decision-making and control processes, with numerous benefits, including in terms of sustainability. In many industries, especially in food and beverage sector, the implementation of smart technologies could play an important role and have a positive impact on business processes, making them sustainable. The literature on the use of smart technologies in food and beverage companies focuses on the impact that such technologies have on performance measurement and sustainability, but there is a lack of explanation of the impact of smart technologies on decision-making and control systems. This work aims to fill the gap in the literature by investigating, through a case study, the impact of smart technologies on the decision-making and control systems of food and beverage companies. The case study showed that the use of smart technologies in food and beverage companies has an impact both on control systems, which generate a range of information relevant to management control, and on decision-making systems, which support management in making optimal strategic decisions for the company.
The Impact of Spontaneous and Induced Restoration on the Hydromorphological Conditions and Macrophytes, Example of Flinta River
Authors: Zaborowski Stanisław , Kałuża Tomasz , Jusik Szymon
Published: February 2023

Highly modified riverbeds are not able to spontaneously reproduce natural processes. The restoration of natural river systems is an important challenge to modern river engineering. Various procedures and solutions, both technical and non-technical, are applied in this process. This involves looking for simple solutions that are close to nature and that interfere with river ecosystems to a minimal extent. One of these solutions is deflectors, which constitute a type of simplified spur. This study presents the results of the research on the transformations of hydromorphology and macrophytes on selected sections of the Flinta River, which represents the most common type of river in the Central European Lowlands (a small river with a sandy substrate). Two neighbouring sections of the watercourse were selected. The first one has not been subject to any regulatory measures for over 30 years and is undergoing spontaneous restoration, while the second one was significantly altered (straightened, cleared of hydrophytes, and desilted) ten years ago. Three deflectors were introduced in this section in the years 2017–2018. Research conducted on both sections enabled the determination of the possibility of initiating renaturalisation processes by way of implementing simple solutions in the form of low-cost wooden deflectors. It also provided the basis for the assessment of the impact the measures taken had on the hydromorphological status of the watercourse and on macrophytes. Based on the studies conducted, it was possible to determine the size, dynamic, and scope of the changes taking place in the river under various conditions of its transformation, including those resulting from anthropopressure.
Multi-Objective Optimization-Based Approach for Optimal Allocation of Distributed Generation Considering Techno-Economic and Environmental Indices
Authors: Sultan Muhammad Shahroz , Kazmi Syed Ali Abbas , Altamimi Abdullah , Khan Zafar A. , Shin Dong Ryeol
Published: February 2023

Distribution networks have entered a new era with the broad adoption of the distributed generation (DG) allocation as a practical solution for addressing power losses, voltage variation, and voltage stability. The primary goal is to enhance techno-economic and environmental characteristics while meeting the limitations of the system. In order to allocate DGs in active distribution networks (ADNs) efficiently, this study demonstrates two optimization methods inspired by nature: ant lion optimization (ALO) and multiverse optimization (MVO). Various multi-criteria decision-making (MCDM) methods are used to find the best possible solution among the different alternatives. On the IEEE 33- and 69-bus active distribution networks, the proposed ALO was shown to be effective and produces the highest loss reduction in the IEEE 33- and 69-bus systems at 94.43% and 97.16%, respectively, and the maximum voltage stability index (VSI) was 0.9805 p.u and 0.9937 p.u, respectively; moreover, the minimum voltage deviation (VD) and annual energy loss cost for the given test systems was 0.00019 p.u and 3353.3 PKR, which shows that the suggested method can produce higher quality results as compared to other methods presented in the literature. Therefore, the proposed ALO is a very efficient, effective, and appealing solution to the optimal allocation of the distributed generation (OADG) problem.
A Study on Teachers’ Continuance Intention to Use Technology in English Instruction in Western China Junior Secondary Schools
Authors: Xie Yi , Boudouaia Azzeddine , Xu Jinfen , AL-Qadri Abdo Hasan , Khattala Asma , Li Yan , Aung Ya Min
Published: February 2023

This study aimed to investigate the factors that affect the continuance intention to use technology among English teachers in China, mainly by examining the direct effects of help seeking, interest, effort regulation, growth mindset, facilitating conditions, perceived usefulness, and perceived ease of use on continuance intention (CI), and the indirect effects the above factors have on continuance intention through self-efficacy. The study sample comprised 459 English language teachers from junior secondary schools in different regions in Western China. A questionnaire that involved the above variables was used, and it was validated using exploratory factor analysis and confirmatory factor analysis. The results revealed significant direct effects of help seeking, effort regulation, growth mindset, facilitating conditions, perceived usefulness, and perceived ease of use on the continuance intention to use technology. However, the results showed that interest did not have a direct effect on the continuance intention to use technology. The findings also demonstrated that growth mindset, interest, effort regulation, help seeking, and perceived usefulness did not indirectly affect the continuance intention to use technology through self-efficacy. Nevertheless, the findings indicated that facilitating conditions and perceived ease of use did have an indirect effect on the continuance intention to use technology through self-efficacy. In light of these findings, some suggestions and recommendations were presented.
Power Quality Detection and Categorization Algorithm Actuated by Multiple Signal Processing Techniques and Rule-Based Decision Tree
Authors: Singh Surendra , Sharma Avdhesh , Garg Akhil Ranjan , Mahela Om Prakash , Khan Baseem , Boulkaibet Ilyes , Neji Bilel , Ali Ahmed , Brito Ballester Julien
Published: February 2023

This paper introduces a power quality (PQ) detection and categorization algorithm actuated by multiple signal processing techniques and rule-based decision tree (RBDT). This is aimed to recognize PQ events of simple nature and higher order multiplicity with less computational time using hybridization of the signal processing techniques. A voltage waveform with a PQ event (PQE) is processed using the Stockwell transform (ST) to compute the Stockwell PQ detection index (SPDI). The voltage waveform is also processed using the Hilbert transform (HT) to compute the Hilbert PQ detection index (HPDI). A voltage waveform is also decomposed using the Discrete Wavelet transform (DWT) to compute the classification feature index (CFI) [CFI1 to CFI4]. A combined PQ detection index (CPDI) is computed by multiplication of the SPDI, the HPDI and CFI1 to CFI4. Incidence of a PQE on a voltage signal is located with the help of a location PQ disturbance index (LPDI) which is computed by differentiating the CPDI with respect to time. CFI5, CFI6 and CFI7 are computed from the SPDI, the HPDI and the CPDI, respectively. Categorization of PQ events is performed using CFI1 to CFI7 by the rule-based decision tree (RBDT) with the help of simple decision rules. We conclude that the proposed algorithm is effective to identify the PQE with an accuracy of 98.58% in a noise-free environment and 97.62% in the presence of 20 dB SNR (signal-to-noise ratio) noise. Ten simple nature PQEs and eight combined PQ events (CPQEs) with multiplicity of two, three and four are effectively detected and categorized using the algorithm. The algorithm is also tested to detect a sag PQ event due to a line-to-ground (LG) fault incident on a practical distribution utility network. The performance of the investigated method is compared with a DWT-based technique in terms of accuracy of classification with and without noise, maximum computational time of PQ detection and multiplicity of PQE which can be effectively detected. A simulation is performed using the MATLAB software. MATLAB codes are used for modelling the PQE disturbances and the proposed algorithm using mathematical formulations.
Strategies to Strengthen Integrated Solid Waste Management in Small Municipalities
Authors: Bernache-Pérez Gerardo , De Medina-Salas Lorena , Castillo-González Eduardo , Giraldi-Díaz Mario Rafael
Published: February 2023

Many developing countries have problems associated with waste management; therefore, this research aims to propose strategies for waste management in small municipalities (less than 50,000 inhabitants), pointing out the importance of involving the stakeholders responsible for improving each phase of this process. The methodology consisted of carrying out a diagnosis to show the current situation at the national, state, and municipal levels, as well as several strategies. The results revealed that in Mexico the waste management system consists of a collection and final disposal model, while waste recovery and treatment are incipient. To strengthen integrated waste management in small municipalities, the strategies proposed in this research consider higher budgets by the federal government to enable an infrastructure for collection, treatment, and final disposal, allowing waste valorization. Other strategies consist of improving coordination between the different stakeholders involved, based on actions by federal, state, and municipal authorities to promote the participation of the social, service, productive, and educational sectors, through public policies, as well as formal incorporation of scavengers and the formation of inter-municipal associations responsible for waste management. Among the conclusions, it is highlighted that the implementation of these strategies will favor the transition towards a circular economy model for small municipalities.
Bibliometric Analysis and Benchmarking of Life Cycle Assessment of Higher Education Institutions
Authors: Deda Denner , Gervásio Helena , Quina Margarida J.
Published: February 2023

Higher Education Institutions (HEI), such as Universities and Institutes worldwide, are making efforts and setting goals to assess and minimise their environmental impacts, and to become more sustainable. Life Cycle Assessment (LCA) has been considered a powerful approach to deal with environmental impacts of products and services. Thus, in this paper, a bibliometric analysis was carried out to benchmark the sustainability of HEI in terms of key areas, impacts, and barriers. Results indicate that, although some HEI are concerned with sustainability, LCA has not been systematically adopted in their assessments, and the main focus is on the calculation of carbon emissions. The lack of available internal information and managing commitment are the main barriers to adopting LCA in HEI. In the few cases where LCA was considered, it was observed that differences in scopes, functional units, intensities, and data reliability hamper comparisons, and lead to biased conclusions. In the end of the paper, the results of some Portuguese HEI are provided and discussed, showing the need for a better understanding of environmental assessment results.
Effects of the 2011 Mw 9.0 Tohoku-Oki Earthquake on the Locking Characteristics and Seismic Risk of the Yishu Fault Zone in China
Authors: Du Cunpeng , Yin Haitao , Yu Shengwen , Yang Le , Jia Yuan
Published: February 2023

To ascertain the 2011 Tohoku-Oki Mw 9.0 earthquake’s impact on the stability of the Yishu fault zone, this study inverts the fault locking degree and slip rate defect distribution of the Yishu fault zone using GPS horizontal velocity field data covering the period from 1999 to 2009 and from April 2011 to 2019. This is based on the block negative dislocation model. Combined with the b value and strain field characteristics, the properties of deformation of the Yishu fault zone before and after the earthquake are comprehensively analyzed. The results show that before the 2011 Tohoku-Oki Mw 9.0 earthquake, the locking degree and depth of the northern segment of the Yishu fault zone were higher, while the locking depth of the southern segment of the fault was shallower. The 2011 Tohoku-Oki earthquake produced different coseismic effects on the southern and northern sections of the Yishu fault zone. The extension on the southern section and compression on the northern section caused the strain release in the southern sections of the Yishu fault zone following the earthquake. After it, the regional locking degree of the southern section of the Yishu fault zone was relieved. However, the locking degree of the northern segment of the fault zone was still high and the depth was deep, at about 26 km. In addition, the northern section of the Yishu fault zone was a section with an abnormally low b value and small earthquakes in the northern segment are sparse at present. The coseismic compression of the northern section caused by the 2011 Tohoku-Oki earthquake is conducive to its locking and easily accumulates stress, so it is necessary to pay attention to its seismic risk.
Heavy Metals and Their Ecological Risk Assessment in Surface Sediments of the Changjiang River Estuary and Contiguous East China Sea
Authors: Wang Qianwen , Huang Xiaoli , Zhang Yu’na
Published: February 2023

Marine heavy metal pollution has been an important global environmental issue in recent years. Concentrations of nine heavy metals (Pb, Cr, Ni, Cu, Zn, Co, Cd, As, and Hg) from marine sediments (2015, n = 38) in the Changjiang River Estuary and contiguous East China Sea were determined. The total contents of nine heavy metals ranged from 134.0 μg/g to 357.8 μg/g, with Cr as the most abundant component. Pearson correlation coefficient matrix of the heavy metals, granularity, and total organic carbon (TOC) in the samples were determined, and a preliminary ecological risk assessment was conducted in three aspects. According to the investigation, heavy metals were commonly found in samples and affected by terrestrial inputs to a large extent. Their concentration distributions were significantly affected by granularity as well as TOC. Preliminary ecological risk assessment showed that Cd and Hg were identified as the dominant heavy metals in the sediment samples from the study areas and showed a strong ecological risk. Overall, the situation of heavy metal pollution in the sediments of the Changjiang River Estuary and contiguous East China Sea was not optimistic in 2015, and it is worthy of further investigation into whether the environmental condition has improved with the strengthening of governmental environmental protection.
On the Solutions of the Fractional-Order Sawada–Kotera–Ito Equation and Modeling Nonlinear Structures in Fluid Mediums
Authors: Yasmin Humaira , Abu Hammad Ma’mon , Shah Rasool , Alotaibi Badriah M. , Ismaeel Sherif. M. E. , El-Tantawy Samir A.
Published: February 2023

This study investigates the wave solutions of the time-fractional Sawada–Kotera–Ito equation (SKIE) that arise in shallow water and many other fluid mediums by utilizing some of the most flexible and high-precision methods. The SKIE is a nonlinear integrable partial differential equation (PDE) with significant applications in shallow water dynamics and fluid mechanics. However, the traditional numerical methods used for analyzing this equation are often plagued by difficulties in handling the fractional derivatives (FDs), which lead to finding other techniques to overcome these difficulties. To address this challenge, the Adomian decomposition (AD) transform method (ADTM) and homotopy perturbation transform method (HPTM) are employed to obtain exact and numerical solutions for the time-fractional SKIE. The ADTM involves decomposing the fractional equation into a series of polynomials and solving each component iteratively. The HPTM is a modified perturbation method that uses a continuous deformation of a known solution to the desired solution. The results show that both methods can produce accurate and stable solutions for the time-fractional SKIE. In addition, we compare the numerical solutions obtained from both methods and demonstrate the superiority of the HPTM in terms of efficiency and accuracy. The study provides valuable insights into the wave solutions of shallow water dynamics and nonlinear waves in plasma, and has important implications for the study of fractional partial differential equations (FPDEs). In conclusion, the method offers effective and efficient solutions for the time-fractional SKIE and demonstrates their usefulness in solving nonlinear integrable PDEs.
Numerical Analysis of the Time-Fractional Boussinesq Equation in Gradient Unconfined Aquifers with the Mittag-Leffler Derivative
Authors: Mukhtar Safyan
Published: February 2023

In this study, two numerical methods—the variational iteration transform method (VITM) and the Adomian decomposition (ADM) method—were used to solve the second- and fourth-order fractional Boussinesq equations. Both methods are helpful in approximating non-linear problems effectively, easily, and accurately. The fractional Atangana–Baleanu operator and ZZ transform were utilized to derive solutions for the equation. Two examples are discussed to validate the methods and solutions. The results demonstrate that both the VITM and ADM methods are effective in obtaining accurate and reliable solutions for the time-fractional Boussinesq equation.
Fractional Weighted Midpoint-Type Inequalities for s-Convex Functions
Authors: Nasri Nassima , Aissaoui Fatima , Bouhali Keltoum , Frioui Assia , Meftah Badreddine , Zennir Khaled , Radwan Taha
Published: February 2023

In the present paper, we first prove a new integral identity. Using that identity, we establish some fractional weighted midpoint-type inequalities for functions whose first derivatives are extended s-convex. Some special cases are discussed. Finally, to prove the effectiveness of our main results, we provide some applications to numerical integration as well as special means.
Gravitational Refraction of Compact Objects with Quadrupoles
Authors: Beissen Nurzada , Utepova Daniya , Abishev Medeu , Quevedo Hernando , Khassanov Manas , Toktarbay Saken
Published: February 2023

We use the material medium approach to derive the refractive index that can be associated with the gravitational field of a compact object with a quadrupole moment. We consider both a static deformation and a stationary rotation of the gravitational source as the source of the quadrupole. We show that up to the first order in the quadrupole, the refractive indices of both configurations are equivalent such that from the point of view of refraction, a mimicking effect can occur. This also holds at the level of the deflection angle. We argue that it is possible to use the refractive indices and the parameters of the trajectories of light rays that propagate in a gravitational field to determine the physical parameters of the source.
Initial CT Imaging Predicts Mortality in Severe Traumatic Brain Injuries in Pediatric Population—A Systematic Review and Meta-Analysis
Authors: Goubran Doris , Batoo Divjeet , Linton Janice , Shankar Jai
Published: February 2023

The purpose of this systematic review was to analyze evidence based on existing studies on the ability of initial CT imaging to predict mortality in severe traumatic brain injuries (TBIs) in pediatric patients. An experienced librarian searched for all existing studies based on the inclusion and exclusion criteria. The studies were screened by two blinded reviewers. Of the 3277 studies included in the search, data on prevalence of imaging findings and mortality rate could only be extracted from 22 studies. A few of those studies had patient-specific data relating specific imaging findings to outcome, allowing the data analysis, calculation of the area under the curve (AUC) and receiver operating characteristic (ROC), and generation of a forest plot for each finding. The data were extracted to calculate the sensitivity (SN), specificity (SP), positive predictive value (PPV), negative predicted value (NPV), AUC, and ROC for extradural hematoma (EDH), subdural hematoma (SDH), traumatic subarachnoid hemorrhage (tSAH), skull fractures, and edema. There were a total of 2219 patients, 747 females and 1461 males. Of the total, 564 patients died and 1651 survived; 293 patients had SDH, 76 had EDH, 347 had tSAH, 244 had skull fractures, and 416 had edema. The studies included had high bias and lower grade of evidence. Out of the different CT scan findings, brain edema had the highest SN, PPV, NPV, and AUC. EDH had the highest SP to predict in-hospital mortality.
Ecotoxicological Differences of Antimony (III) and Antimony (V) on Earthworms Eisenia fetida (Savingy)
Authors: Bai Jing , Lu Dan , Chen Linyu , Liu Weiying , Zheng Yu , Xiang Guohong , Meng Guiyuan , Lin Zhong , Duan Renyan
Published: February 2023

In this study, we assessed the acute and chronic toxic effects of Sb (III) and Sb (V) on Eisenia fetida (Savingy) (E. fetida) by applying the filter paper contact method, aged soil treatment, and avoidance test experiment. In the acute filter paper contact test, the LC50 values for Sb (III) were 2581 mg/L (24 h), 1427 mg/L (48 h), and 666 mg/L (72 h), which were lower than Sb (V). In the chronic aged soil exposure experiment, when the Sb (III)-contaminated soil was aged 10 d, 30 d, and 60 d after exposure for 7 d, the LC50 value of E. fetida was 370, 613, and >4800 mg/kg, respectively. Compared to Sb (V) spiked soils aged only for 10 d, the concentrations causing 50% mortality significantly increased by 7.17-fold after 14 days of exposure in soil aged for 60 d. The results show that Sb (III) and Sb (V) could cause death and directly affect the avoidance behavior of E. fetida; yet, the toxicity of Sb (III) was higher than that of Sb (V). Consistent with the decrease in water-soluble Sb, the toxicity of Sb to E. fetida was greatly reduced with time. Therefore, in order to avoid overestimating the ecological risk of Sb with varying oxidative states, it is important to consider the forms and bioavailability of Sb. This study accumulated and supplemented the toxicity data, and provided a more comprehensive basis for the ecological risk assessment of Sb.
Evidence for a Novel Gammaherpesvirus as the Putative Agent of Malignant Catarrhal Fever Disease in Roan Antelopes (Hippotragus equinus)
Authors: Kaiser Franziska Karola , de le Roi Madeleine , Mirolo Monica , Jesse Sonja Tatjana , Puff Christina , Bohner Julia , Ludlow Martin , Baumgärtner Wolfgang , Osterhaus Albert
Published: February 2023

Upon the sudden death of two captive roan antelopes (Hippotragus equinus) that had suffered from clinical signs reminiscent of malignant catarrhal fever (MCF) in a German zoo, next generation sequencing of organ samples provided evidence of the presence of a novel gammaherpesvirus species. It shares 82.40% nucleotide identity with its so far closest relative Alcelaphine herpesvirus 1 (AlHV-1) at the polymerase gene level. The main histopathological finding consisted of lympho-histiocytic vasculitis of the pituitary rete mirabile. The MCF-like clinical presentation and pathology, combined with the detection of a nucleotide sequence related to that of AlHV-1, indicates a spillover event of a novel member of the genus Macavirus of the Gammaherpesvirinae, probably from a contact species within the zoo. We propose the name Alcelaphine herpesvirus 3 (AlHV-3) for this newly identified virus.
A New Decision Support Tool for Evaluating the Impact of Stormwater Management Systems on Urban Runoff Pollution
Authors: Vinck Evi , De Bock Birgit , Wambecq Tom , Liekens Els , Delgado Rosalia
Published: February 2023

Stormwater runoff is often discharged untreated into receiving waters, a process that is widely recognized as a threat to water quality. To protect water bodies, tools are needed to assess the risk of urban runoff pollution. In this work, a new tool is presented that can be used to model the concentration of the most frequent pollutants in urban runoff, i.e., Zn, Cu, Pb, PAH(1)6, TN, and TP, based not only on the surface type but also on other inputs such as the amount of traffic or the building type. The tool also includes a simple model to evaluate the impact of different SUDS types. The water quality model was evaluated by measurement campaigns in separate sewer systems of a few small catchments in Flanders. The model was able to reproduce the observed time-dependent spread in concentrations in a satisfactory manner. Furthermore, the model also allowed for the attribution of differences in heavy metal concentrations in catchments very similar to the building types. These are clear improvements compared to previous model approaches.
Multi-Annual Dynamics of a Coastal Groundwater System with Soil-Aquifer Treatment and Its Impact on the Fate of Trace Organic Compounds
Authors: Guillemoto Quentin , Picot-Colbeaux Géraldine , Valdes Danièle , Devau Nicolas , Thierion Charlotte , Idier Déborah , Mathurin Frédéric A. , Pettenati Marie , Mouchel Jean-Marie , Kloppmann Wolfram
Published: February 2023

The combination of managed aquifer recharge (MAR) with soil-aquifer treatment (SAT) has clear advantages for the future sustainable quality and quantity management of groundwater, especially when using treated wastewater. We built a Marthe flow and transport model of an MAR–SAT system located in a near-shore sand aquifer, for quantifying the influence of environmental factors (climate, tides, and operational conditions) on the coastal hydrosystem with regard to the fate of trace organic compounds (TrOCs). The simulations show the impact of these factors on flow rates and dilution, and thus, on the potential reactivity of TrOCs. The dilution of secondary treated wastewater (STWW) is variable, depending on the operations (feeding from infiltration ponds) and on shore proximity (dilution by saltwater). We show that, close to the ponds and during infiltration, the attenuation of TrOC concentrations can be explained by reactivity. At the natural outlet of the aquifer, the simulated average residence times ranged from about 70 to 500 days, depending upon seasonal dynamics. It is important to study TrOCs at site scale in order to anticipate the effect of natural variations on the SAT and on the fate of TrOCs.
Strategi Pariwisata Terintegrasi Berbasis Sentralitas Spasial Pada Desa Wisata Di Kabupaten Sleman
Authors: Darmawan Hariyadi Darmawan , Daeng Noerdjamal  , Fiona Yonanda Putri  , Huriyah Dzikriyatul Ainunnajah  , Maulidina Ihza Almayda  , Riki Subianto
Published: February 2023

Tourism village is one of Indonesia's tourism development priorities program, but its development is often faced several issues, one of its issues is the offer of similar tourist attractions between tourism villages. Likewise, the issues faced by Sleman Regency in the development of its tourism village. Thus, it is necessary to have an integrated tourism strategy to create a cooperation network between tourism villages. The purpose of this study is to identify and interpret connectivity and relationships between tourism villages, followed by formulating an integrated tourism strategy based on spatial centrality in tourism villages in Sleman Regency. The method used is a quantitative research method with a survey approach through checklists and interviews. The data analysis technique uses spatial network construction analysis of gravity models and Geographic Information System (GIS). The results of this study indicate the operationalization framework of an integrated tourism strategy based on seven aspects of the significance of integrated tourism according to Oliver and Jenkins (2001) and a hierarchy of classification of tourism village roles based on spatial centrality.
Penggunaan Tepung Karagenan Sebagai Pengganti Pektin Dalam Pembuatan Selai Buah
Authors: Luthfi Tristy Firlyanie
Published: February 2023

Penelitian ini merupakan kontribusi terhadap pemanfaatan rumput laut yang diolah menjadi  tepung karagenan sebagai pengganti pektin untuk pembuatan selai buah. Tujuan dari penelitian ini adalah untuk membuktikan bahwa tepung karagenan yang berasal dari tumbuhan rumput laut memiliki fungsi yang sama dengan pektin dan dapat menjadi bahan pengganti dalam pembuatan selai buah. Pada penelitian ini, penulis akan menggunakan metode eksperimental yakni metode percobaan dan observasi sistematis terhadap objek eksperimen, hanya beberapa faktor saja yang diamati dan dikenakan perlakuan-perlakuan tertentu dengan kondisi-kondisi yang dapat dikontrol sehingga penulis bisa mengamati proses eksperimennya. Jenis selai buah yang digunakan adalah selai nanas karena nanas merupakan buah yang paling umum digunakan dalam pembuatan selai buah. Hasil dari penelitian ini adalah tepung karagenan memiliki fungsi yang sama dengan pektin untuk proses pengentalan pada selai buah dan untuk uji organoleptic (rasa, tekstur, aroma dan warna), selai buah yang menggunakan 50% tepung karagenan memiliki selisih rata-rata yang kecil dibandingkan dengan selai yang menggunakan 100% pektin.
Threats Of The Covid-19 Pandemic On Existence Of Hospitality Business In Maintaining Business Continuity Management (BCM)
Authors: Maulina Lien , Sukmadi
Published: February 2023

ABSTRACTThe spread of the corona virus (covid-19) is still a hot issue in the international world, including Indonesia. This outbreak has affected economic activity in Indonesia with a very significant impact, especially on one of the foreign exchange earners in Indonesia, namely the tourism sector. Ministry of Tourism and Creative Economy, the number of tourists coming to Indonesia is not only reduced but almost non-existent, including tourist visits to the hotel industry. All cross-sectoral and industrial organizations in dealing with the Covid-19 pandemic have made changes in their operations in business as usual conditions, where every activity in the workplace apart from their respective homes, both in offices, factories and other locations. Based on these problems, the purpose of this study is to identify and analyze the threat of the COVID-19 pandemic on the existence of the hospitality business in maintaining business continuity management (BCM). The research method used is a descriptive qualitative method based on secondary data in the form of journals related to research problems, research results and library references regarding data and information related to the threat of the covid 19 pandemic. Data collection techniques use documentation. Data analysis is done through content analysis. The results showed that the Covid-19 pandemic was an event in which the existence of the external environment was relatively uncontrollable or outside the company's control. The direct impact that affects business entities relates to conventional business activities in marketing, finance, human resources and operations. For hoteliers, it is necessary to adjust quickly in the midst of the Covid-19 pandemic and strive to develop product and service innovations in accordance with market demand trends accompanied by transformations in online application services as well as providing and displaying the applied health protocol and certification carried out by the Ministry of Tourism and Creative Economy.Keywords: Covid-19 Pandemic, Hospitality Business, Business Continuity Management (BMC)
Voluntourism (Volunteer Tourism) Dynamics: Tourist Experience That Might Save the Bali Starlings
Authors: Agoes Adrian , Indah Nur Agustiani
Published: February 2023

The FNPF, a non-profit organization, has made a one-of-a-kind initiative to save Bali starlings. The FNPF has incorporated volunteer tourism (voluntourism) into their Bali starling conservation project. The foundation has established a Bali starling conservation facility on the small island of Nusa Penida, Bali. Their activities are ranging from accommodating volunteer tourists from other countries to work and assisting in conservation activities. This paper intends to examine whether this voluntourism activity has a significant impact on the conservation of Bali starlings. Due to pandemic condition, this study had been conducted from a distance interview with the head of the Bali starling conservation activity in Nusa Penida. He also helped collecting data from the volunteers. According to the study's findings, volunteer tourism has an influence on Bali starling conservation. Despite the fact that the influence is indirect, it is considerably significant. As a result, voluntourism will continue to be implemented in Nusa Penida's Bali starling conservation efforts.
Strategi Pengembangan Pariwisata Berkelanjutan di Desa Lambangjaya
Authors: Dewi Susianty Natalia , Dienaputra Reiza , Rakhman Cecep Ucu
Published: February 2023

Penelitian ini dilakukan untuk mengkaji potensi wisata dan strategi pengembangan wisata di Desa Lambangjaya. Perbedaan penelitian ini dengan penelitian lainnya adalah lokasi penelitian yang diangkat merupakan lokasi penelitian yang belum pernah ditinjau dalam aspek pariwisata. Tujuan penelitian ini adalah untuk mengetahui potensi yang dimiliki Desa Lambangjaya sebagai daya tarik pariwisata, serta strategi pengembangan pariwisata secara berkelanjutan. Penelitian ini merupakan penelitian deskriptif kualitatif yang memaparkan keadaan pariwisata di Desa Lambangjaya menggunakan analisis SWOT dengan mengkaji faktor internal dan eksternal. Teknik pengumpulan data meliputi observasi, wawancara dan studi kepustakaan. Hasil penelitian ini menunjukkan bahwa Desa Lambangjaya memiliki potensi pariwisata berbasis alam, budaya dan masyarakat. Strategi pengembangan Desa Lambangjaya yaitu menjaga kelestarian dan memanfaatkan potensi desa untuk dijadikan daya tarik wisata guna memikat kunjungan wisatawan. Stategi pengembangan Desa Lambangjaya lainnya juga dilihat dari aspek 3A (Atraksi, Aksesibilitas dan Amenitas); SDM, Masyarakat dan Industri; serta strategi pemasaran BAS (Branding, Advertising dan Selling).
Keterlibatan Masyarakat dalam Mendukung Program Desa Wisata
Authors: Suherlan Herlan , Adriani Yanthi , Pah Daniel , Fauziyyah Inas , Evangelin Bunga , Wibowo Livia , Hanafi Mokhamad , Rahmatika Choirunnisa
Published: February 2023

Kurang aktifnya Kelompok Sadar Wisata (Pokdarwis) menjadi suatu permasalahan yang terjadi pada beberapa desa wisata. Hal ini dapat mengakibatkan kurangnya keterlibatan masyarakat dan kurang maksimalnya manfaat yang didapatkan dalam mengelola desa wisata. Penelitian ini bertujuan untuk mengidentifikasi produk wisata di desa wisata serta sejauh mana keterlibatan masyarakatnya dalam mendukung kegiatan pariwisata. Metode penelitian yang digunakan yaitu kualitatif deskriptif dengan fokus pada keterlibatan masyarakat dalam mendukung program desa wisata. Analisis yang digunakan untuk mengolah data hasil temuan adalah analisis Tourism Area Life Cycle (TALC) dan pemetaan pemangku kepentingan (stakeholders). Penelitian ini menunjukkan informasi seputar produk wisata serta keterlibatan masyarakat dalam mengolah produk yang sudah dimiliki, agar dapat mendukung jalannya desa wisata. Didapati juga kedudukan masyarakat dan Pokdarwis sebagai pemangku kepentingan berada pada posisi subjects yang mana memiliki kepentingan tinggi tetapi pengaruhnya rendah. Penelitian ini memberikan implikasi untuk meningkatkan keterlibatqan masyarakat dalam aktivitas pariwisata.
Peningkatan Kualitas Sdm Pariwisata Melalui Pendidikan Terintegrasi: Kolaborasi Perguruan Tinggi Vokasi Dengan Industri Pariwisata
Authors: Saepudin Deden , Didin Nurdin  , Ilham Fajri  , Dadi Indra Permana
Published: February 2023

The quality of tourism human resources is closely related to the quality of tourism education institutions. A good tourism educational institution will also produce good graduates, as candidates for quality tourism human resources. Thus efforts to improve tourism human resources begin with efforts to improve the quality of tourism education. This study analyzes how education is managed in tourism vocational higher education institutions, especialy at the NHI Bandung Tourism Academy and at Nusantara Jaya Depok Tourism Academy. The research method uses a qualitative approach with observation techniques, documentation studies and in-depth interviews with stakeholders. It consists of directors, heads of study programs, lecturers, practice instructors, heads of internal quality assurance, and students at the two institutions that are the locus of research. The results of the study show that to produce graduates who are ready to work and have experience working in the industry, tourism higher institutions must collaborate with the hospitality industry in implementing integrated practical learning (work based learning). This form of collaboration is realized by involving industrial practitioners in a number of activities, including: 1) Curriculum development and alignment; 2) Formation of a Steering Committee; 3) Teaching practitioner program; 4) Implementaion on the job training; 5) Sending students to part-time work program (casual); and 6) Guest lecture from industry practitioners. The implications of this collaboration will improve the quality of graduates which will ultimately contribute to improving the quality of tourism human resources.