bluuebunny/crossref_metadata_2025 huggingface dataset:
Supporting the Clean Electrification for Remote Islands: The Case of the Greek Tilos Island
Authors: Kaldellis John K.
Published: March 2021

Many islands around the world present considerable energy supply problems, while their energy mixture is controlled by oil products. Meanwhile, several of these isolated islands enjoy excellent RES potential that support actions to maximize RES integration. In order to ameliorate energy supply security and energy autonomy of the Aegean Archipelagos Greek islands, an integrated solution is deployed based on the exploitation of the existing RES potential in conjunction with the application of an appropriate energy storage scheme, as well as complementary smart-grid elements. The proposed solution has been applied for the Greek Tilos island in the framework of the Tilos-Horizon 2020 program. In this context, the implementation of the integrated Tilos energy solution under the current local legislative frame is a great success story introducing several important innovative characteristics in the European market, like the combined operation of a wind turbine and a PV installation, the application of new technology battery energy storage, the installation of a DSM network/platform and the development of a large number of reliable forecasting algorithms. The innovative integrated solution is a real-world working operating example offering knowledge and proving that the solution deployed could be equally well applied in various other remote islands throughout the European territory with very promising results.
How We Heal: Genealogical Narratives of Healing among San Lázaro Devotees
Authors: Penagos Elaine
Published: March 2021

Healing is the basis of belief in San Lázaro, a popular saint among Cubans, Cuban-Americans, and other Latinx peoples. Stories about healing, received through faith in San Lázaro, are typically passed on through family members, rendering them genealogical narratives of healing. In this photo essay, the author draws on her maternal grandmother’s devotion to San Lázaro and explores how other devotees of this saint create genealogical narratives of healing that are passed down from generation to generation. These genealogical narratives of healing function as testaments to the efficaciousness of San Lázaro’s healing abilities and act as familial avenues through which younger generations inherit belief in the saint. Using interview excerpts and ethnographic observations conducted at Rincón de San Lázaro church in Hialeah, Florida, the author locates registers of lo cotidiano, the everyday practices of the mundane required for daily functions and survival, and employs arts-based methods such as photography, narrative inquiry, and thematic poetic coding to show how the stories that believers tell about San Lázaro, and their experiences of healing through faith in the saint, constitute both genealogical narratives of healing and genealogical healing narratives where testimonies become a type of narrative medicine.
Interventions to Ameliorate the Psychosocial Effects of the COVID-19 Pandemic on Children—A Systematic Review
Authors: Boldt Katharina , Coenen Michaela , Movsisyan Ani , Voss Stephan , Rehfuess Eva , Kunzler Angela M. , Lieb Klaus , Jung-Sievers Caroline
Published: March 2021

The aim of this study was to identify interventions targeting children and their caregivers to reduce psychosocial problems in the course of the COVID-19 pandemic and comparable outbreaks. The review was performed using systematic literature searches in MEDLINE, Embase, PsycINFO and COVID-19-specific databases, including the CDC COVID-19 Research Database, the World Health Organisation (WHO) Global Database on COVID-19 Research and the Cochrane COVID-19 Study Register, ClinicalTrials.gov, the EU Clinical Trials Register and the German Clinical Trials Register (DRKS) up to 25th September 2020. The search yielded 6657 unique citations. After title/abstract and full text screening, 11 study protocols reporting on trials planned in China, the US, Canada, the UK, and Hungary during the COVID-19 pandemic were included. Four interventions targeted children ≥10 years directly, seven system-based interventions targeted the parents and caregivers of younger children and adolescents. Outcome measures encompassed mainly anxiety and depressive symptoms, different dimensions of stress or psychosocial well-being, and quality of supportive relationships. In conclusion, this systematic review revealed a paucity of studies on psychosocial interventions for children during the COVID-19 pandemic. Further research should be encouraged in light of the expected demand for child mental health management.
Predicting the Appearance of Hypotension during Hemodialysis Sessions Using Machine Learning Classifiers
Authors: Gómez-Pulido Juan A. , Gómez-Pulido José M. , Rodríguez-Puyol Diego , Polo-Luque María-Luz , Vargas-Lombardo Miguel
Published: March 2021

A patient suffering from advanced chronic renal disease undergoes several dialysis sessions on different dates. Several clinical parameters are monitored during the different hours of any of these sessions. These parameters, together with the information provided by other parameters of analytical nature, can be very useful to determine the probability that a patient may suffer from hypotension during the session, which should be specially watched since it represents a proven factor of possible mortality. However, the analytical information is not always available to the healthcare personnel, or it is far in time, so the clinical parameters monitored during the session become key to the prevention of hypotension. This article presents an investigation to predict the appearance of hypotension during a dialysis session, using predictive models trained from a large dialysis database, which contains the clinical information of 98,015 sessions corresponding to 758 patients. The prediction model takes into account up to 22 clinical parameters measured five times during the session, as well as the gender and age of the patient. This model was trained by means of machine learning classifiers, providing a success in the prediction higher than 80%.
Effects of Post-Exertional Malaise on Markers of Arterial Stiffness in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Authors: Bond Joshua , Nielsen Tessa , Hodges Lynette
Published: March 2021

Background: Evidence is emerging that individuals with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) may suffer from chronic vascular dysfunction as a result of illness-related oxidative stress and vascular inflammation. The study aimed to examine the impact of maximal-intensity aerobic exercise on vascular function 48 and 72 h into recovery. Methods: ME/CFS (n = 11) with gender and age-matched controls (n = 11) were randomly assigned to either a 48 h or 72 h protocol. Each participant had measures of brachial blood pressure, augmentation index (AIx75, standardized to 75 bpm) and carotid-radial pulse wave velocity (crPWV) taken. This was followed by a maximal incremental cycle exercise test. Resting measures were repeated 48 or 72 h later (depending on group allocation). Results: No significant differences were found when ME/CFS were directly compared to controls at baseline. During recovery, the 48 h control group experienced a significant 7.2% reduction in AIx75 from baseline measures (p < 0.05), while the matched ME/CFS experienced no change in AIx75. The 72 h ME/CFS group experienced a non-significant increase of 1.4% from baseline measures. The 48 h and 72 h ME/CFS groups both experienced non-significant improvements in crPWV (0.56 ms−1 and 1.55 ms−1, respectively). Conclusions: The findings suggest that those with ME/CFS may not experience exercise-induced vasodilation due to chronic vascular damage, which may be a contributor to the onset of post-exertional malaise (PEM).
Health Risk Assessment for Exposure to Nitrate in Drinking Water in Central Java, Indonesia
Authors: Lowe Callum , Kurscheid Johanna , Lal Aparna , Sadler Ross , Kelly Matthew , Stewart Donald , Laksono Budi , Amaral Salvador , Gray Darren
Published: March 2021

Since 2005, over 30 epidemiological studies have evaluated the association between nitrate in drinking water and adverse health outcomes. Conditions that lead to nitrate pollution in water, such as open defecation, the proximity of septic tanks to water sources, and the use of inorganic fertilizer, are rampant in Indonesia, which has experienced little research evaluating nitrate in drinking water. We conducted a health risk assessment for exposure to nitrate in drinking water and evaluated the nitrate concentration in key water sources in two villages of rural Central Java, Indonesia. The nitrate concentrations in the drinking water ranged from 3.55 mg/L to 26.75 mg/L as NO3−. Daily nitrate intake estimates, calculated at 50% and 95% exposure to the maximum nitrate concentration of the drinking water in both villages, were above the levels associated with birth defects, colorectal cancer, and thyroid conditions observed in other studies. There was a large variation in nitrate concentrations between and within the villages at different water sources. Further research into whether these health outcomes exist in rural Central Java, Indonesia will be required to better understand this risk.
Multi-Scenario Analysis of Habitat Quality in the Yellow River Delta by Coupling FLUS with InVEST Model
Authors: Ding Qinglong , Chen Yang , Bu Lingtong , Ye Yanmei
Published: March 2021

The past decades were witnessing unprecedented habitat degradation across the globe. It thus is of great significance to investigate the impacts of land use change on habitat quality in the context of rapid urbanization, particularly in developing countries. However, rare studies were conducted to predict the spatiotemporal distribution of habitat quality under multiple future land use scenarios. In this paper, we established a framework by coupling the future land use simulation (FLUS) model with the Intergrated Valuation of Environmental Services and Tradeoffs (InVEST) model. We then analyzed the habitat quality change in Dongying City in 2030 under four scenarios: business as usual (BAU), fast cultivated land expansion scenario (FCLE), ecological security scenario (ES) and sustainable development scenario (SD). We found that the land use change in Dongying City, driven by urbanization and agricultural reclamation, was mainly characterized by the transfer of cultivated land, construction land and unused land; the area of unused land was significantly reduced. While the habitat quality in Dongying City showed a degradative trend from 2009 to 2017, it will be improved from 2017 to 2030 under four scenarios. The high-quality habitat will be mainly distributed in the Yellow River Estuary and coastal areas, and the areas with low-quality habitat will be concentrated in the central and southern regions. Multi-scenario analysis shows that the SD will have the highest habitat quality, while the BAU scenario will have the lowest. It is interesting that the ES scenario fails to have the highest capacity to protect habitat quality, which may be related to the excessive saline alkali land. Appropriate reclamation of the unused land is conducive to cultivated land protection and food security, but also improving the habitat quality and giving play to the versatility and multidimensional value of the agricultural landscape. This shows that the SD of comprehensive coordination of urban development, agricultural development and ecological protection is an effective way to maintain the habitat quality and biodiversity.
Functional Upper Airway Space Endoscopy: A Prognostic Indicator in Obstructive Sleep Apnea Treatment with Mandibular Advancement Devices
Authors: Gasparini Giulio , Saponaro Gianmarco , Todaro Mattia , Ciasca Gabriele , Cigni Lorenzo , Doneddu Piero , Azzuni Camillo , Foresta Enrico , De Angelis Paolo , Barbera Giorgio , Parcianello Roberta Gaia , Hreniuc Horia Vasile , Moro Alessandro
Published: March 2021

Purpose: The use of a mandibular advancement device (MAD) in the treatment of obstructive sleep apnea (OSA) is a consolidated therapy. This study aimed to evaluate the predictive value of awake upper airways (UA) functional endoscopy in identifying the outcome of MAD therapy. Methods: This observational prospective study included 30 adult OSA patients, all patients underwent pre-treatment awake UA functional endoscopy, during the exam subjects were instructed to advance their mandible maximally, and they were divided into three different groups according to the response of the soft tissue, group A (expansion), group B (stretch), group C (unchanged). The results of this test were used in combination with other noninvasive indexes to predict the treatment outcome in terms of apnea-hypopnea index (AHI) reduction. Results: We found that a substantial AHI reduction occurred in group A and group B while e slight AHI reduction was measured in group C. Conclusion: Based on our experience the awake UA endoscopy is a valid prognostic exam for discriminating responder and non-responder patients; in addition our results indicate the possibility of predicting a range of post-treatment AHI index values.
Monitoring Training and Recovery during a Period of Increased Intensity or Volume in Recreational Endurance Athletes
Authors: Nuuttila Olli-Pekka , Nummela Ari , Häkkinen Keijo , Seipäjärvi Santtu , Kyröläinen Heikki
Published: March 2021

The purpose of the study was to examine the effects of progressively increased training intensity or volume on the nocturnal heart rate (HR) and heart rate variability (HRV), countermovement jump, perceived recovery, and heart rate-running speed index (HR-RS index). Another aim was to analyze how observed patterns during the training period in these monitoring variables were associated with the changes in endurance performance. Thirty recreationally trained participants performed a 10-week control period of regular training and a 10-week training period of either increased training intensity (INT, n = 13) or volume (VOL, n = 17). Changes in endurance performance were assessed by an incremental treadmill test. Both groups improved their maximal speed on the treadmill (INT 3.4 ± 3.2%, p < 0.001; VOL 2.1 ± 1.8%, p = 0.006). In the monitoring variables, only between-group difference (p = 0.013) was found in nocturnal HR, which decreased in INT (p = 0.016). In addition, perceived recovery decreased in VOL (p = 0.021) and tended to decrease in INT (p = 0.056). When all participants were divided into low-responders and responders in maximal running performance, the increase in the HR-RS index at the end of the training period was greater in responders (p = 0.005). In conclusion, current training periods of increased intensity or volume improved endurance performance to a similar extent. Countermovement jump and HRV remained unaffected, despite a slight decrease in perceived recovery. Long-term monitoring of the HR-RS index may help to predict positive adaptations, while interpretation of other recovery-related markers may need a more individualized approach.
Special Issue: Selected Papers from Experimental Stress Analysis 2020
Authors: Kunčická Lenka , Halama Radim , Fusek Martin
Published: March 2021

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Thermal Decomposition Behavior of Prussian Blue in Various Conditions
Authors: Parajuli Durga , Tanaka Hisashi , Sakurai Koji , Hakuta Yukiya , Kawamoto Tohru
Published: March 2021

Prussian blue analogs (PBA) are widely studied for radioactive cesium decontamination. However, there are fewer works related to their post use storage. Considering the oxidative stabilization of the material after the selective uptake of Cs, the thermogravimetric properties in powder and bead form, with various Cs and other alkali metal ions adsorbed, and various heating rates were studied. TG-DTA taken in dry air condition shows an exothermic decomposition at ~270 °C. This temperature varied with the heating rate, mass, and the proportion of adsorbed ions. The best condition for complete oxidation of Prussian blue (PB) is found to be a gradual oxidative decomposition by heating in the temperature range of 200–220 °C until the total mass is decreased by >35%. After this, the temperature could be safely increased to >300 °C for the complete oxidative decomposition of PB that formed iron oxide and salt of the adsorbed Cs. A pilot scale test conducted using the radioactive Cs adsorbed Prussian blue microbeads (PB-b) confirmed that no Cs was released in the effluent air during the process.
Impact of COVID-19 Pandemic on Patients with Immune Thrombocytopaenia
Authors: Román María-Teresa Álvarez , Jiménez Yuste Víctor , García Barcenilla Sara , Ramírez López Andrés , Monzón Manzano Elena , de la Cruz Benito Beatriz , Butta Paula Acuña , Rivas Pollmar María Isabel , Trelles Martínez Roberto , González Zorrilla Elena , Martín Salces Mónica , Cebanu Tamara , Butta Nora V.
Published: March 2021

Background and Objectives: The aim of this study was to determine the impact of the COVID-19 pandemic on the lives of patients with immune thrombocytopaenia (ITP) treated at our hospital. Materials and Methods: The study was conducted in the Community of Madrid, which has the highest number of COVID-19 cases in Spain. We included 143 adult patients with ITP (130 with chronic ITP, 8 with persistent ITP, and 5 with newly diagnosed ITP). We conducted a telephone survey to collect the data and created a registry. Materials and Methods: Overall, 24 patients presented symptoms suggestive of COVID-19, which was confirmed by RT-PCR in 8 cases. The cumulative incidence of confirmed SARS-CoV-2 infection was higher in the patients with ITP than in the Madrid population. There were no differences in the disease incidence or clinical course of infection in the patients treated with immunosuppressants. Almost all of the patients reported adherence to the prescribed treatment, although 49.2% of the hospital visits were either cancelled or postponed, 17.2% because of the patients’ fear of coming to the centre. Nearly half of the cohort was considered vulnerable, and 17% had been granted a dependency or disability benefit. Conclusions: COVID-19 had a major impact on the psychosocial, occupational, and quality of care of patients with ITP.
Vitamin D and Stress Fractures in Sport: Preventive and Therapeutic Measures—A Narrative Review
Authors: Knechtle Beat , Jastrzębski Zbigniew , Hill Lee , Nikolaidis Pantelis T.
Published: March 2021

There are numerous risk factors for stress fractures that have been identified in literature. Among different risk factors, a prolonged lack of vitamin D (25(OH)D) can lead to stress fractures in athletes since 25(OH)D insufficiency is associated with an increased incidence of a fracture. A 25(OH)D value of <75.8 nmol/L is a risk factor for a stress fracture. 25(OH)D deficiency is, however, only one of several potential risk factors. Well-documented risk factors for a stress fracture include female sex, white ethnicity, older age, taller stature, lower aerobic fitness, prior physical inactivity, greater amounts of current physical training, thinner bones, 25(OH)D deficiency, iron deficiency, menstrual disturbances, and inadequate intake of 25(OH)D and/or calcium. Stress fractures are not uncommon in athletes and affect around 20% of all competitors. Most athletes with a stress fracture are under 25 years of age. Stress fractures can affect every sporty person, from weekend athletes to top athletes. Stress fractures are common in certain sports disciplines such as basketball, baseball, athletics, rowing, soccer, aerobics, and classical ballet. The lower extremity is increasingly affected for stress fractures with the locations of the tibia, metatarsalia and pelvis. Regarding prevention and therapy, 25(OH)D seems to play an important role. Athletes should have an evaluation of 25(OH)D -dependent calcium homeostasis based on laboratory tests of 25-OH-D3, calcium, creatinine, and parathyroid hormone. In case of a deficiency of 25(OH)D, normal blood levels of ≥30 ng/mL may be restored by optimizing the athlete’s lifestyle and, if appropriate, an oral substitution of 25(OH)D. Very recent studies suggested that the prevalence of stress fractures decreased when athletes are supplemented daily with 800 IU 25(OH)D and 2000 mg calcium. Recommendations of daily 25(OH)D intake may go up to 2000 IU of 25(OH)D per day.
The Activation Relationship to Father and the Attachment Relationship to Mother in Children with Externalizing Behaviors and Receiving Psychiatric Care
Authors: Paquette Daniel , Cyr Chantal , Gaumon Sébastien , St-André Martin , Émond-Nakamura Mutsuko , Boisjoly Louise , Stikarovska Irena , Bisaillon Claud , Puentes-Neuman Guadalupe
Published: March 2021

The activation relationship refers to the emotional bond a child develops with a parent that helps ensure the regulation of risk-taking during child exploration of the surrounding environment. As a complement to Bowlby’s attachment theory, activation relationship theory provides a greater understanding of the impact of fathering on child development, focusing primarily on parental stimulation of risk-taking and control during child exploration. The overarching objective of this article is to better understand the association between children’s relationship quality with both parents, via the activation to father and the attachment to mother relationships, and child externalizing behaviors in a clinical sample. Fifty two-parent families (40 boys and 10 girls) were recruited at random from a population of children receiving treatment at the perinatal and early childhood psychiatry clinic. Results with 44 children (with complete cases) showed that overactivated preschoolers displayed more externalizing behaviors than did children with either an activated or an under-activated relationship with their father. Results also showed that children with a disorganized-controlling caregiving attachment to their mother marginally presented with higher levels of externalizing behavior.
Cantilever-Based Sensor Utilizing a Diffractive Optical Element with High Sensitivity to Relative Humidity
Authors: Grogan Catherine , McGovern Faolan Radford , Staines Rory , Amarandei George , Naydenova Izabela
Published: March 2021

High-sensitivity and simple, low-cost readout are desirable features for sensors independent of the application area. Micro-cantilever sensors use the deflection induced by the analyte presence to achieve high-sensitivity but possess complex electronic readouts. Current holographic sensors probe the analyte presence by measuring changes in their optical properties, have a simpler low-cost readout, but their sensitivity can be further improved. Here, the two working principles were combined to obtain a new hybrid sensor with enhanced sensitivity. The diffractive element, a holographically patterned thin photopolymer layer, was placed on a polymer (polydimethylsiloxane) layer forming a bi-layer macro-cantilever. The different responses of the layers to analyte presence lead to cantilever deflection. The sensitivity and detection limits were evaluated by measuring the variation in cantilever deflection and diffraction efficiency with relative humidity. It was observed that the sensitivity is tunable by controlling the spatial frequency of the photopolymer gratings and the cantilever thickness. The sensor deflection was also visible to the naked eye, making it a simple, user-friendly device. The hybrid sensor diffraction efficiency response to the target analyte had an increased sensitivity (10-fold when compared with the cantilever or holographic modes operating independently), requiring a minimum upturn in the readout complexity.
Modeling Regulation of Economic Sustainability in Energy Systems with Diversified Resources
Authors: Alabugin Anatoly , Aliukov Sergei
Published: March 2021

The imperfection of theoretical and methodological approaches to regulate the jump process transition when combining differentiated energy resources is a pressing issue. The goal of this paper is to develop a theory and a method to regulate the integration-balancing processes of combining diversified resources. The concept of combining integration and balancing models has been substantiated by methods of transforming multidimensional space and approximating generalized functions that represent jump-like processes. Theoretical and operational-regulatory models of economic sustainability have been developed, substantiating new concepts, patterns, properties, dependencies and indicators of the dynamics of the processes of combination; the optimality conditions for the number of approximations of generalized functions, interpreting the effects of control functions of combining resources, are thus determined. New methods for solving problems have been developed: the organization of the energy technology complex of facilities for enhanced resource diversification and the Sustainable Development Center, improving the quality of managing dynamic processes in terms of combining and diversifying resources. Emphasis is placed on four elements: theoretical and methodological approaches to regulate the jump process transition when combining differentiated energy resources is a pressing issue; the goal of this paper is to develop a theory and a method to regulate the integration-balancing processes of combining diversified resources; the concept of combining integration and balancing models has been substantiated by methods of transforming multidimensional space and approximating generalized functions that represent jump-like processes.
Odontogenic Maxillary Sinusitis: Therapeutic Management of Cases with Oroantral Fistulae
Authors: Yun Yasutaka , Yagi Masao , Sakagami Tomofumi , Sawada Shunsuke , Kojima Yuka , Nakatani Tomoe , Kawachi Risaki , Suzuki Kensuke , Murata Hideyuki , Kanda Akira , Asako Mikiya , Iwai Hiroshi
Published: March 2021

Odontogenic maxillary sinusitis (OMS) is a disease in which inflammation from the teeth extend into the maxillary sinus, causing symptoms of unilateral sinusitis. OMS can recur, with some being resistant to antibiotics. In intractable cases, exodontia and endoscopic sinus surgery (ESS) are necessary treatments. Here we report our analysis on the indications for surgical intervention in cases diagnosed with and treated as OMS. We retrospectively examined 186 patients who were diagnosed with sinusitis on a computed tomography (CT) scan. For cases diagnosed with OMS, the site of the causative tooth and the presence or absence of oroantral fistula to the maxillary sinus was examined. In addition, we analyzed the therapeutic efficacy of the initial treatment of antibiotics, and what the indications were for ESS. Among the patients examined, OMS was diagnosed in 44 cases (23.6%). In 14 out of 20 cases that underwent a post-medical treatment CT scan, OMS found to be treatment-resistant. Of these 14 cases, 12 (88%) had oroantral fistulae to the maxillary sinus. In all cases where exodontia, fistula closure surgery, and endoscopic sinus surgery (ESS) were performed, the fistula disappeared and the shadow of inflammation in the paranasal sinus improved. In OMS with oroantral fistula, ESS, exodontia, and fistula closure should be recommended over medication such as macrolide therapy.
Use of Dynamic Mechanical Analysis (DMA) for Characterizing Interfacial Interactions in Filled Polymers
Authors: Bashir Muhammad Ahsan
Published: March 2021

Dynamic mechanical analysis (DMA) provides reliable information about the viscoelastic behavior of neat and filled polymers. The properties of filled polymers are relevant to different industries as protective organic coatings, composites etc. Interfacial interactions in filled polymers play an important role in determining their bulk properties and performance during service life. In this brief review article, studies that used DMA to characterize the interfacial interactions in filled polymers have been reviewed. The available open literature provides a mixed opinion about the influence of interfacial interactions on the glass transition temperature of filled polymers. Nevertheless, it appears that in the case of strong interfacial interactions between the filler particles and the polymeric matrix, the peak value of tan δ is reduced in comparison to that of a filled polymer where these interactions are weak.
Two-Stage Stochastic Program for Supply Chain Network Design under Facility Disruptions
Authors: Kungwalsong Kanokporn , Cheng Chen-Yang , Yuangyai Chumpol , Janjarassuk Udom
Published: March 2021

A supply chain disruption is an unanticipated event that disrupts the flow of materials in a supply chain. Any given supply chain disruption could have a significant negative impact on the entire supply chain. Supply chain network designs usually consider two stage of decision process in a business environment. The first stage deals with strategic levels, such as to determine facility locations and their capacity, while the second stage considers in a tactical level, such as production quantity, delivery routing. Each stage’s decision could affect the other stage’s result, and it could not be determined individual. However, supply chain network designs often fail to account for supply chain disruptions. In this paper, this paper proposed a two-stage stochastic programming model for a four-echelon global supply chain network design problem considering possible disruptions at facilities. A modified simulated annealing (SA) algorithm is developed to determine the strategic decision at the first stage. The comparison of traditional supply chain network decision framework shows that under disruption, the stochastic solutions outperform the traditional one. This study demonstrates the managerial viability of the proposed model in designing a supply chain network in which disruptive events are proactively accounted for.
An Evaluation of Massive Land Interventions for the Relocation of Capital Cities
Authors: Hackbarth Tom X. , de Vries Walter T.
Published: March 2021

Across the world, capital cities are being relocated. Such practices have existed almost as long as capitals themselves. Against the background of the relocation of Indonesia’s seat of government from Jakarta to East Kalimantan, it is clear that such processes will continue to take place in the future. Especially if one considers the reasons for the move: climate change is leading to an increasing inhabitability of the Indonesian capital. Therefore, it is important to understand the processes behind such megaprojects and their impacts on the surroundings in order to build new capitals sustainably. Hence, this paper deals with examples from the past seven decades and examines them from different perspectives, such as the underlying politics and economy, planning approaches, reasons for relocation, as well as cultural and ecological backgrounds. With an analytical methodology based on eight aspects of responsible land management interventions (the 8R-framework), it is possible to assess the degree to which these moves are responsible. Combined with a literature review of past documented evidence, we derived 8R-matrices, inferred recurring issues and constructed a database containing multiple aspects of capital relocations. This database allowed simple SQL-coding, which enabled describing commonalities among the different land interventions for the capital relocations. These results help to connect occurring sets of problems to particular political, economic and planning backgrounds and to identify different frameworks within which most new capitals are situated. These new insights make future capital relocations better manageable and can support the process of capital relocation in Indonesia.
Research on Inversion Mechanism of Chlorophyll—A Concentration in Water Bodies Using a Convolutional Neural Network Model
Authors: Xue Yun , Zhu Lei , Zou Bin , Wen Yi-min , Long Yue-hong , Zhou Song-lin
Published: March 2021

For Case-II water bodies with relatively complex water qualities, it is challenging to establish a chlorophyll-a concentration (Chl-a concentration) inversion model with strong applicability and high accuracy. Convolutional Neural Network (CNN) shows excellent performance in image target recognition and natural language processing. However, there little research exists on the inversion of Chl-a concentration in water using convolutional neural networks. Taking China’s Dongting Lake as an example, 90 water samples and their spectra were collected in this study. Using eight combinations as independent variables and Chl-a concentration as the dependent variable, a CNN model was constructed to invert Chl-a concentration. The results showed that: (1) The CNN model of the original spectrum has a worse inversion effect than the CNN model of the preprocessed spectrum. The determination coefficient (RP2) of the predicted sample is increased from 0.79 to 0.88, and the root mean square error (RMSEP) of the predicted sample is reduced from 0.61 to 0.49, indicating that preprocessing can significantly improve the inversion effect of the model.; (2) among the combined models, the CNN model with Baseline1_SC (strong correlation factor of 500–750 nm baseline) has the best effect, with RP2 reaching 0.90 and RMSEP only 0.45. The average inversion effect of the eight CNN models is better. The average RP2 reaches 0.86 and the RMSEP is only 0.52, indicating the feasibility of applying CNN to Chl-a concentration inversion modeling; (3) the performance of the CNN model (Baseline1_SC (RP2 = 0.90, RMSEP = 0.45)) was far better than the traditional model of the same combination, i.e., the linear regression model (RP2 = 0.61, RMSEP = 0.72) and partial least squares regression model (Baseline1_SC (RP2 = 0.58. RMSEP = 0.95)), indicating the superiority of the convolutional neural network inversion modeling of water body Chl-a concentration.
An Approach to Reliability, Availability and Maintainability Analysis of a Plug-In Electric Vehicle
Authors: Talukdar Bipul Kumar , Deka Bimal Chandra
Published: March 2021

Electric vehicle technologies have seen rapid development in recent years. However, Reliability, Availability, and Maintainability (RAM) related concerns still have restricted large-scale commercial utilization of these vehicles. This paper presents an approach to carry out a quantitative RAM analysis of a plug-in electric vehicle. A mathematical model is developed in the Markov Framework incorporating the reliability characteristics of all significant electrical components of the vehicle system, namely battery, motor, drive, controllers, charging unit, and energy management unit. The study shows that the vehicle’s survivability can be increased by improving its components’ restoration rates. The paper also investigates the role of a charging station on the availability of the vehicle. It illustrates how the grid power supply’s reliability influences the operational effectiveness of a plug-in electric vehicle. The concepts that are presented in the article can support further study on the reliability design and maintenance of a plug-in electric vehicle.
Perancangan Sistem Pendaftaran Audiens Seminar Proposal di Institut Agama Islam Negeri (IAIN) Bukittinggi
Authors: Darmawan M R , Musril H A
Published: March 2021

Problems with the implementation of the proposal seminar contained in Institut Agama Islam Negeri Bukittinggi are still not effective and efficient because in processing the proposal seminar implementation data is still done manually resulting in an audience attending the proposal seminar has the opportunity to commit fraud, excessive audience numbers, and hinder the process of checking the authenticity of sign cards attending proposal seminars by students present as audiences. With these problems, the author aims to design a seminar audience registration system that can assist students in finding a proposal seminar schedule, choosing a proposal seminar schedule to be followed, printing a signed card to attend the proposal seminar, and assisting the head of the study program in managing schedule data and print audience absences. The type of research used is Research and Development (R&D in which the sequence of activities carried out systematically makes it easier to design a seminar audience registration system. With the seminar audience registration system, it makes it easy to manage the proposal seminar schedule, makes it easy to access anywhere with internet, and the implementation of proposal seminars becomes more effective and efficient because the system used is based on databases and online.
Analisis dan Perancangan Sistem Informasi Akuntansi Pengelolaan Tabungan Siswa pada SD Ar-Raudah Bandarlampung
Authors: Damayanti Damayanti , Sulistiani H , Umpu E F G S
Published: March 2021

Application of information technology in an organization is very important to facilitate and accelerate the management of activities that occur. This is the basis for the development of accounting information systems for managing student savings at SD Ar-Raudah Bandarlampung. Management of student savings is still done manually so that calculation errors often occur, filling in data when reporting savings and less responsive when searching for data. In addition, administrative staff also needs a long time to produce savings reports per student and overall savings report. The purpose of developing student savings information system is to facilitate administration staff in making reports and to minimize errors in recording student savings.
Reduced survival of Black-throated Diver Gavia arctica chicks - an effect of changes in the abundance of fish, light conditions or exposure to mercury in the breeding lakes?
Authors: Eriksson Mats O G
Published: March 2021

The breeding success of Black-throated Diver Gavia arctica in Sweden has been monitored in the period 1994– 2014. The production of young was in balance with the annual mortality, without any temporal trend. However, the percentage of broods with 2–3 chicks decreased significantly, indicating reduced survival of the unfledged chicks. Three plausible causes were investigated: abundance of fish, impaired water visibility, and exposure to methylmercury. There is no indication of any changes in abundance of the main prey fish, such as Perch Perca fluviatilis. Impaired light conditions have been recorded in lakes in South Sweden, but not in the central and northern parts, so increased difficulties in localising prey fish might have been a contributing factor but cannot fully explain any reduction in chick survival. Exposure to methylmercury, however, deserves further study. For Perch, which is the main prey in most breeding lakes, the average mercury levels in muscle tissue exceeds levels for proposed screening benchmarks, with reference to risk of behavioural aberrations or impaired reproduction in Common Loon Gavia immer in North America.
Häckningsframgång hos svarthakedopping Podiceps auritus i Västergötland, sydvästra Sverige
Authors: Karlsson Thomas
Published: March 2021

Breeding success of the Horned Grebe Podiceps auritus was controlled during 2005–2011 at 41 breeding sites with a median size of 1.07 ha in Västergötland, southwest Sweden. The number of pairs varied between 39 and 51. The production of young was 0.99 per pair and year. In natural water bodies there were 1.23 chicks per pair and year and 68% of the breeding pairs got one or more chicks per pair and year. In artificial water bodies the corresponding values were 0.92 and 50%. Breeding sites with one pair produced 1.29 young per pair and year, compared to 0.85 young where two or more pairs were breeding at the same site, a difference of 0.44 young. There was a similar difference (0.48 young) for artificial water bodies holding one pair or more than one pair, respectively, in contrast to natural water bodies for which the difference was small. There were no indications that the number of young was higher at breeding sites with Mew Gulls or Black-Headed Gulls.
The establishment of a breeding population of Smew Mergellus albellus in an atypical habitat on the Atlantic coast of Norway
Authors: Østnes Jan E , Kroglund Rolf T
Published: March 2021

In recent years, the Smew Mergellus albellus has established a breeding population of minimum 15 pairs on the coastal islands in Vikna municipality (65°N, 11°E) in Central Norway. As a result, the current breeding distribution of Smew extends throughout northern Eurasia, from the Atlantic Ocean to the Pacific Ocean. The habitat in Vikna is quite different from that of the coniferous taiga zone, and the population is probably ground-nesting. We suggest that the westward range expansion, and the ability to adapt to another habitat than the coniferous taiga zone, can make the Smew better able to cope with future impacts of global climatic change than predicted by present models.
Deterministic Approach to Achieve Full-Polarization Cloak
Authors: Xu He-Xiu , Wang Yanzhao , Wang Chaohui , Wang Mingzhao , Wang Shaojie , Ding Fei , Huang Yongjun , Zhang Xiaokuan , Liu Haiwen , Ling Xiaohui , Huang Wei
Published: March 2021

Achieving full-polarization (

σ

) invisibility on an arbitrary three-dimensional (3D) platform is a long-held knotty issue yet extremely promising in real-world stealth applications. However, state-of-the-art invisibility cloaks typically work under a specific polarization because the anisotropy and orientation-selective resonant nature of artificial materials made the

σ

-immune operation elusive and terribly challenging. Here, we report a deterministic approach to engineer a metasurface skin cloak working under an arbitrary polarization state by theoretically synergizing two cloaking phase patterns required, respectively, at spin-up (

σ
+

) and spin-down (

σ
−

) states. Therein, the wavefront of any light impinging on the cloak can be well preserved since it is a superposition of

σ
+

and

σ
−

wave. To demonstrate the effectiveness and applicability, several proof-of-concept metasurface cloaks are designed to wrap over a 3D triangle platform at microwave frequency. Results show that our cloaks are essentially capable of restoring the amplitude and phase of reflected beams as if light was incident on a flat mirror or an arbitrarily predesigned shape under full polarization states with a desirable bandwidth of ~17.9%, conceiving or deceiving an arbitrary object placed inside. Our approach, deterministic and robust in terms of accurate theoretical design, reconciles the milestone dilemma in stealth discipline and opens up an avenue for the extreme capability of ultrathin 3D cloaking of an arbitrary shape, paving up the road for real-world applications.
Effects of continuous irrigation at room temperature or +4ºC on the cyclic fatigue resistance of K3XF instruments
Authors: Arslan Hakan , Doğanay Yıldız Ezgi , Taş Gizem , Karataş Ertuğrul , Tepecik Ebru
Published: March 2021

Background. The present study aimed to evaluate the impact of continuous irrigation with saline solution at room temperature or +4°C on the cyclic fatigue resistance of K3XF files. Methods. Forty-eight new K3XF files (#30, .04 taper) were randomly assigned to three groups: control group (no irrigation), continuous irrigation with saline solution at room temperature, and continuous irrigation with saline solution at +4°C. The instruments were tested in an artificial, stainless steel root canal with a double curvature at body temperature (37±1°C). Time to fracture was converted to the number of cycles to fracture (NCF). The lengths of the fractured fragments were recorded. Kruskal–Wallis H test and one-way ANOVA were used to analyze data. Results. K3XF files’ cyclic fatigue resistance was significantly higher in the continuous irrigation groups than in the control group. Continuous irrigation with saline solution at +4°C resulted in higher cyclic fatigue resistance than continuous irrigation with saline solution at room temperature. There were no significant differences between the groups in terms of the fractured fragments’ length. Conclusion. Within this study’s limitations, continuous irrigation with saline solution increased the NCF of NiTi instruments; decreasing the saline solution’s temperature increased this effect.
From the Object to the Embodiment of Alienation: The Predicament of the Protagonist in Arun Josh’s Novel, The Foreigner
Authors: Tulasi M
Published: March 2021

Arun Joshi is an outstanding Indian English Novelist who has dealt with the inner crises of the modern man living in the present day world. The Foreigner (1968) is his novel that concerns itself with the human relations and its various aspects. The present paper deals with the Protagonist of the novel, Sindi Oberai. The whole story revolves around his feelings and experiences. The novel’s central thematic concerns are attachment, detachment, loss of faith, loneliness, identity crisis, and anxiety, all of which are artistically explored in the protagonist’s life. Oberai, the central character, comes back to Delhi, after experiencing life and love in America, and at last persuaded by a humble office worker in India.Although the effects of alienation in Oberai’s life are analyzed by the earlier critics, the present paper attempts to trace the roots of that alienation. Most commonly children bloom in their childhood with tender care, support and guidance of their parents. The lack of parental love and the life of orphanage greatly affect one’s personality, and the paper argues that here lies the source of Oberai’s alienated life. As the title suggests explicitly, the paper claims that the protagonist starts his life as an object of alienation, but as he grows up, he himself becomes the embodiment of alienation, through the process of internalization, and some other characters in the novel have to face the bitter consequences of his alienated personality.The protagonist Sindi Oberai is an orphan, who is deprived of the parental love. He is trapped in his own loneliness, and develops a kind of chronic detachment. The bitter experiences of his childhood and his environment in which he was brought up were internalized by him and eventually he becomes an unwitting embodiment of the alienation which devastated his childhood initially. Sindhi is deprived of family nourishment and becomes a wandering alien. He is exposed to various cultures of people but he is not attached to any of these cultures. The paper analyses the loss of parents’ true love and affection as the formative cause of Oberai’s alienated personality.
Remediasi Miskonsepsi Siswa pada Konsep Asam dan Basa dengan Menggunakan Strategi Konflik Kognitif di Kelas XII MIA MAN 1 Kota Gorontalo
Authors: Solang Sriwanda Van , Salimi Yuszda K , Pikoli Masrid
Published: March 2021

Penelitian ini bertujuan untuk meremediasi miskonsepsi siswa dengan menggunakan strategi konflik kognitif. Desain penelitian ini yaitu one group pretest posttest. Sampel pada penelitian ini berjumlah 95 siswa yang terbagi dalam tiga kelas. Data pada penelitian ini berupa data kuantitatif dan kualitatif. Tes pemahaman konsep yang diberikan berupa three-tier diagnostic test yang sudah di uji validatas dan relibilitas. Tes yang digunakan sudah dinyatakan valid oleh tim validator dengan kategori timggi (baik) realibilitas r = 0,88 (kategori tinggi) . Analisis data menggunakan uji Wilcoxon signed-rank test dengan taraf signifikasi α= 0,05 untuk melihat pergeeran miskonsepsi, uji Liliefors umuk menguji keterlaksanaan sintak. Penentuan kategori tingkat pemahaman siswa untuk mengidentifikasi konsepsi siswa digunakan pilihan ganda tiga tingkat (three- tier diagnostic test) yang dilengkapi dengan Certainty of Response Index (CRI). Certainty Of Response (CRI). Hasil uji Wilcoxon signed-rank test menunjukkan bahwa pada taraf signifikansi α= 0,05 memberikan hasil pada ketiga kelas secara individu masing-masing berada pada nilai 0,000 dan secara klasikal berada pada nilai 0,002; 0,002 dan 0,002. Ini menunjukkan bahwa α -value yang diperoleh lebih kecil dari 0,05 sehingga H0 ditolak dan H1 diterima. Artinya, strategi konflik dapat mereduksi miskonsepsi siswa pada konsep larutan asam basa.