bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Cybersickness Caused by Head-Mounted Display–Based Virtual Reality on Physiological Responses: Cross-sectional Study
Authors: Kim Yoon Sang , Won JuHye , Jang Seong-Wook , Ko Junho 
Published: October 2022

Background
Although more people are experiencing cybersickness due to the popularization of virtual reality (VR), no official standard for the cause and reduction of cybersickness exists to date. One of the main reasons is that an objective method to assess cybersickness has not been established. To resolve this, research on evaluating cybersickness with physiological responses that can be measured in real time is required. Since research on deriving physiological responses that can assess cybersickness is at an early stage, further studies examining various physiological responses are needed.

Objective
This study analyzed the effects of cybersickness caused by head-mounted display–based VR on physiological responses.

Methods
We developed content that provided users with a first-person view of an aircraft that moved (with translation and combined rotation) over a city via a predetermined trajectory. In the experiment, cybersickness and the physiological responses of participants were measured. Cybersickness was assessed by the Simulator Sickness Questionnaire (SSQ). The measured physiological responses were heart rate, blood pressure, body temperature, and cortisol level.

Results
Our measurement confirmed that all SSQ scores increased significantly (all Ps<.05) when participants experienced cybersickness. Heart rate and cortisol level increased significantly (P=.01 and P=.001, respectively). Body temperature also increased, but there was no statistically significant difference (P=.02). Systolic blood pressure and diastolic blood pressure decreased significantly (P=.001).

Conclusions
Based on the results of our analysis, the following conclusions were drawn: (1) cybersickness causes significant disorientation, and research on this topic should focus on factors that affect disorientation; and (2) the physiological responses that are suitable for measuring cybersickness are heart rate and cortisol level.
ASSESSMENT OF TOTAL INTRAVENOUS ANAESTHESIA BY PROPOFOL AND INHALATIONAL ANAESTHESIA WITH ISOFLURANE FOR CONTROLLED HYPOTENSION IN FUNCTIONAL ENDOSCOPIC SINUS SURGERY
Authors: Mylapuram Venkata Ganesh , POOSARLA VENKATA SURYA LAVANYA , Kaki Lavanya 
Published: October 2022

Objective: The key objective of the study is to compare the Propofol-based total intravenous anaesthesia (TIVA) with Isoflurane-based inhalational anaesthesia for controlled hypotension during functional endoscopic sinus surgery (FESS). Materials and Methods: This is a prospective randomized, controlled single-blinded clinical study. The study involved 40 patients posted for elective FESS surgery, selected randomly from the ENT department. Anesthesia was induced with Inj. Midazolam 2 mg, Inj. Fentanyl 2 µg/kg, Inj. Propofol 2 mg/kg, Inj. Vecuronium 0.1 mg /kg and ventilated using oxygen, air, and Isoflurane (FiO2 of 0.5) in isofurane group patients. Injections of 2 mg of midazolam, 2 µg/kg of fentanyl, 2 mg/kg propofol, and 0.1 mg /kg vecuronium, as well as oxygen and air for ventilation, were used to induce anaesthesia (FIO2 of 0.5) in TIVA group patients. Fromme boezaart scale was used as an evaluation scale for surgical site bleeding. Results: The average blood loss in the isoflurane group was 134.25 ± 4.65ml and in the propofol group was 66.95 ± 4.28ml. The quality of the surgical field in the propofol group is (3.13 ± 0.9), and the isoflurane group is (3.13 ± 0.8). The results are significant. Conclusion: Total intravenous anesthesia using propofol provides notable advantages over the traditionally used inhalational anesthetic technique using isoflurane in surgical field conditions and intraoperative blood loss.
Comparison of periodontal status and failure rates with different retainer bonding methods and adhesives: a randomized clinical trial
Authors: Çokakoğlu Serpil , Kızıldağ Alper 
Published: October 2022

ABSTRACT

Objectives
This single-center, randomized clinical trial evaluated and compared retainer bonding among different methods and adhesives in terms of periodontal status and failure rates.

Materials and Methods
A total of 100 patients from the orthodontic department of Pamukkale University were randomly assigned to the following 4 groups: group 1, direct bonding (DB) with two-step adhesive; group 2, DB with one-step adhesive; group 3, indirect bonding (IDB) with two-step adhesive; and group 4, IDB with one-step adhesive. Eligibility criteria included good finishing results and oral hygiene, no periodontal or systemic problems, and no missing anterior teeth or restorations. Randomization was carried out using computer-generated random numbers with allocation concealment by opaque, sealed envelopes. The main outcomes were plaque index (PI), gingival index (GI), and calculus index (CI) recorded at bonding, 6 months (T1), and 12 months (T2) after bonding. A secondary outcome was failure rate. The periodontal outcome assessor was blinded. Data were analyzed using the Mann-Whitney U-test, Kruskal-Wallis test, and chi-square test.

Results
PI and GI increased with time in all study groups, but there were no significant differences among groups at any time point. A small amount of calculus was observed in all study groups, with the increase in CI for group 3 significantly greater at the T2-T1 time interval (P &lt; .05). There were no significant differences between groups for 12-month failure rates.

Conclusions
The one-step retainer adhesive was similar in terms of periodontal status and failure rate. Therefore, a one-step adhesive can be used during bonding, regardless of technique.
Test and Evaluation of the Factors Affecting on the Freshly Harvested Peanut Threshing Machine Performance
Authors: Abdi Jafar , Golmohammadi Abdollah , Shahgholi Gholamhossein , Fanaei Adel Rezvanivand , Szymanek Mariusz , Tanas Wojciech 
Published: October 2022

Abstract
Peanut is an important produce in the global food chain because of their high-quality oil and protein content. Due to the significant value of its production in Iran, a threshing machine was developed for high-quality harvesting, to reduce harvesting costs and labor effort. In the course of a number of field experiments to evaluate the performance of the machine, the rotational speed of the thresher was adopted at three levels of 150, 200, and 300 rpm. Other experimental factors included the distance of the concave from the thresher (2, 6, and 8 cm) and the product feeding rate of 750, 850, and 950 kg·h−1. Regarding the measurements, the threshing efficiency, the separation rate, and the percentage of the crushed product were calculated and evaluated. The results revealed that as the rotational speed of the thresher, the increment feeding rate of the product and the distance between the thresher and the concave grate increased, the thresher efficiency decreased. The maximum threshing efficiency of 95% was obtained at a rotational speed of 150 rpm and a distance of 2 cm. Also, with increasing the rotational speed of 300 rpm and a distance of 8 cm, the threshing efficiency decreased to 75%. The separation rate decreased intensely as the distance between the thresher and the concave increased. In addition, the separation rate decreases with increasing rotational speed of the thresher. At a rotational speed of 150 rpm and a distance of 2 cm, the separation rate was 96%, but the separation rate decreased to 76% as rotational speed increased to 300 rpm and distance increased to 8 cm. With increasing rotational speed and feeding rate, the percentage of crushed pods increased. The maximum of 16% was obtained at a rotational speed of 300 rpm, a feeding rate of 950 kg·h−1 and a distance of 2 cm.
Selection of the Heat Transfer Coefficient Using Swarming Algorithms
Authors: Gawrońska Elżbieta , Dyja Robert , Zych Maria , Domek Grzegorz 
Published: October 2022

Abstract
The article presents the use of swarming algorithms in selecting the heat transfer coefficient, taking into account the boundary condition of the IV types. Numerical calculations were made using the proprietary TalyFEM program and classic form of swarming algorithms. A function was also used for the calculations, which, during the calculation, determined the error of the approximate solution and was minimalised using a pair of individually employed algorithms, namely artificial bee colony (ABC) and ant colony optimisation (ACO). The tests were carried out to select the heat transfer coefficient from one range. Describing the geometry for a mesh of 408 fine elements with 214 nodes, the research carried out presents two squares (one on top of the other) separated by a heat transfer layer with a κ coefficient. A type III boundary condition was established on the right and left of both edges. The upper and lower edges were isolated, and a type IV boundary condition with imperfect contact was established between the squares. Calculations were made for ABC and ACO, respectively, for populations equal to 20, 40 and 60 individuals and 2, 6 and 12 iterations. In addition, in each case, 0%, 1%, 2% and 5% noise of the reference values were also considered. The obtained results are satisfactory and very close to the reference values of the κ parameter. The obtained results demonstrate the possibility of using artificial intelligence (AI) algorithms to reconstruct the IV type boundary condition value during heat conduction modelling.
Global Warming Potential Considerations for Gaseous Sf6 Alternatives Along the Switchgear Lifetime
Authors: Ye Xiangyang , Mantilla Javier D. 
Published: October 2022

Abstract
Next-generation environmentally friendly switchgear will not use SF6. Currently, all of the main manufacturers in the world are developing products using alternatives based on CO2 as a background gas. The use of FluoroNitriles, 3M™ Novec™ 4710, C4F7N (C4FN) is addressed by different producers under different trademark names. In most cases, Oxygen is added for health and/or functional reasons. In terms of potential climate impact, considering only the GWP of the single gas mixture components is insufficient. In order to better evaluate and understand the advantages the different alternatives offer in comparison to SF6, the GWP calculations of the gas mixtures over a defined timeframe are much more complete. Additionally, not only the GWP of the gas mixtures in new condition is to be considered, but also their evolution through the switchgear lifetime. Arcing, created in all switching and interrupting test duties of HVCB will cause reversible and irreversible chemical reactions that produce new compounds with different dielectric, arc quenching, and environmental properties as the original molecule. Based on thermodynamic calculations, CFD simulations, and gas analysis of samples of alternatives that have been subjected to arcing, this work studies the effect the byproducts of the different mixtures have in terms of climate impact, dielectrics, and arc quenching. This paper offers different scenarios of electrical and gas degradation, from very uncommon events e.g., T100s to very common ones e.g., switching of nominal and/or capacitive currents. The influence of the always evolving gas mixtures along the lifetime of the equipment is evaluated and compared in terms of performance and the climate impact.
Analysis and Tests of the Impact of Permanent Magnets on Current Interruption in a Medium Voltage Rotary Load Break Switch
Authors: Delić Sead , Smajkić Amer , Dullni Edgar , Santamaria Sergio , Uzelac Nenad , Kapetanović Mirsad 
Published: October 2022

Abstract
The breaking capacity of a medium voltage (MV) rotary SF6 load break switch (LBS) can be improved by incorporating permanent magnets into the stationary contacts. The magnetic field is intended to blow the switching arc root towards a recessed space at the stationary contacts thereby preventing reignition of the arc after current zero. Making and breaking tests of load current 630 A were performed comparing the switching performance of load break switches equipped without a permanent magnet, with a ferrite and with a neodymium magnet. The impact of different polarity arrangements of the magnets in the three phases is also considered and analysed. In order to understand the arc behaviour caused by the effect of permanent magnet, arcing times and arc voltage were measured and evaluated. The results show that the arc voltage depends on the direction of the electromagnetic force, which is determined by the phase current direction but also by the polarity of the magnets. When the force is directed towards the recessed space at the stationary contacts, the arc voltage is notably higher than in the case where the arc is blown in the opposite direction. The higher arc voltage is a reliable indication that the length of the arc is increased, which significantly reduces the risk of both thermal and dielectric breakdowns after the first current zero. The consequences are noticed first in the reduction of the number of missed current zeroes and second in shorter minimum arcing times. An adverse arrangement of the magnet polarity in the three phases increases the number of missed current zeroes.
Economic Development Model and Effective Path of Green Industry
Authors: Tian Wen , Zhang Xin 
Published: October 2022

Abstract
Major crises such as greenhouse effect and resource depletion remind people that environmental protection is imminent. However, the economic growth is always accompanied by the destruction of the environment, so the development of green industry economy is very necessary for the balance between the two. However, many of today’s green industry economic development is still in the theoretical stage, and there are no substantive measures. Therefore, this paper aims to build a reasonable development evaluation model for the green industry economy, and use the results of the model to explore the sustainable development of the green industry economy. In view of this, in the stage of proposing the model, this paper refers to a large number of literature and field investigation, and selects 30 suitable evaluation indexes. The experimental results of the green industrial economy in Sichuan Province with the designed model show that the comprehensive evaluation index of green economic development has increased steadily. It reached 0.8255 in 2016, which is in line with the actual situation. This shows that the model in this paper has a good fitting effect, and can provide guidance for the economic development model and effective path of green industry.
Analysis of the Influence of Soil Fertility Factors on High-Yielding Cultivation Techniques
Authors: Li Xiong , Xu Xiaodi , Yang Linxian , Tian Liang , Wang Yining , Hou Jiaqi , Han Yan , Xing Xinwen , Cao Li 
Published: October 2022

Abstract
Soil is the material base of soil fertility. It can not only fix the root system but also provide nutrients, water, and other necessary conditions for crops to promote growth of crops. As a characteristic agricultural product in the Yanbian area, the production of ‘Pingguoli’ is related to the development of the agricultural economy in the Yanbian area. To solve the agricultural problems caused by excessive fertilisation in ‘Pingguoli’ orchards in the Yanbian area and to study the correlation between rare elements and soil properties. Based on the collection of regional natural economic background and soil data in the study area, four treatments were set up: The soil and ‘Pingguoli’ samples were collected, and the total amount of rare earth elements in the soil samples and the related indexes of ‘Pingguoli’ fruit were detected. Soil is the material basis of soil fertility, and soil management determines crop growth. CF1 treatment could increase ‘Pingguoli’ yield and significantly improve fruit quality. The rate of fruit softening and bad fruit decreased significantly after storage. Reduction of fertilisation can improve quality and save cost, among which CF1 has the best effect and can obtain more benefits when applied in production. Implications: Through experiments, agricultural workers can be more deeply aware of the importance of soil to crops; reducing fertilisation can lead to better crop yield and quality while achieving greater benefits, and consumers can get healthier food.
Reproductive phenology of the spider Micrommata ligurina (C.L. Koch, 1845) (Araneae; Sparassidae) across an elevational gradient in Northeast Algeria
Authors: Bensouilah Soufyane , Bensakhri Zinette , Zebsa Rabah , Amari Hichem , Youcefi Abdeldjalil , Zouaimia Abdelheq , Mahdjoub Hayet , Chorfi Amira , Atoussi Sadek , Sadine Salah Eddine , Houhamdi Moussa 
Published: October 2022

Abstract
Decreased ambient temperature and shorter reproductive seasons are the two main obstacles that ectotherms face at higher elevations. Studies have shown that some life history traits such as phenological windows of activity, duration, and fitness components vary as elevation increases. However, studies on the elevational gradient at the southern range limit of species are lacking. In this study, we aim at assessing some aspects of the life history of a spider species, the sprassid Micrommata ligurina (C.L. Koch, 1845), across an elevational gradient from 30 to 1030 m in Northeast Algeria. There was strong evidence of an elevational shift in the phenology of reproduction with a delay rate of 2.2 days per 100 m of elevation, and the three quantiles of the phenology (10, 50, and 90%) shifted with the same magnitude across elevation. In all sites from low to high elevation, the species showed a decrease in number of individuals. The mean number of eggs was 200 ± 35 eggs, and the mean number of hatching eggs was 110.9 ± 23.5 eggs. The clutch size at high elevation sites was higher than that of low-elevation sites, but in contrast, the hatching success was higher at lower elevation sites. Overall, the species exhibited clear elevational clines in life history traits and abundance, suggesting a high potential of plasticity. This work constitutes the first study carried out on spider species ecology in the region.
Assessment in treatment efficiency of a small-scale municipal wastewater treatment plant with activated sludge
Authors: Bubalo Marijana , Šumelj Ivana , Herceg Katarina , Medvidović Nediljka Vukojević 
Published: October 2022

Abstract
In this paper, the treatment efficiency of a small-scale wastewater treatment plant (WWTP) with activated sludge was analysed in order to examine the impact of variations in the composition of incoming raw municipal wastewater. The characteristics of the wastewater were analysed with respect to COD, BOD5 and TSS values and loading during the two years, 2018 and 2019. The mixed liquid suspended solid (MLSS), sludge volume index (SVI), food to microorganism ratio (F/M), sludge age and hydraulic retention time (HRT) were used for evaluation of the performance of WWTP. Removal percentage is in the order of TSS > BOD5 > COD during 2018, while in 2019 is in the order BOD5 > TSS > COD. However, better values of removal efficiency for COD, BOD and TSS are obtained in 2019, which is connected to lower oscillation values of MLSS and SVI index. Biodegradability ratio of raw and treated wastewater, plant reliability factor (RF) and equivalent number of inhabitant (ENI) were determined. In addition, the economic cost of small-scale wastewater treatment plant (WWTP) with activated sludge was evaluated and discussed.
Definition of hot-spots to reduce the nitrogen losses from agricultural land to groundwater in Slovakia
Authors: Bujnovský Radoslav , Koco Štefan 
Published: October 2022

Abstract
Agriculture is a significant contributor to nitrate pollution of groundwater which in many cases serves as a source of drinking water. Therefore, targeted reduction of nitrogen leaching losses is fully justified to address this issue. The aim of the study was to define the areas of utilized agricultural land (UAL) in Slovakia, where a nitrogen surplus needs to be reduced. Using the average values of leachable nitrogen in the period 2015-2018 and the long-term amount of percolated water, the nitrate concentration in leachate was calculated. To ensure that agricultural activities will contribute to the gradual reduction of nitrate concentration in groundwater, the nitrate concentration in leachate of 40 mg L-1 was chosen as the target value. This concentration was exceeded at 11.7% of the UAL area. The average indicative amount of nitrogen in industrial fertilizers that needs to be reduced to achieve a stricter nitrate concentration in the leachate in these hot-spots is 16 kg ha-1 with the proviso that in two districts this value exceeds 30 kg ha-1.
Supply chain dynamics after the COVID-19 pandemic and stock market performance: Evidence from the US
Authors: Gibilaro Lucia , Mattarocci Gianluca 
Published: October 2022

Abstract
Supply chain risk is a strategic issue for managing multinational companies, and Covid-19 has shown the relevance of this type of risk for the firm’s survival probability. The market may perceive the choice of replacing some of the main customers or suppliers as an increase or a decrease of the risk based on the features of the new supply chain members, and markets tend to penalize companies that increase their exposure to unaffordable events. During the pandemic, many supply chains suffered from glitches and companies were obliged to redefine their network by selecting their new strategic customers and/or suppliers.
The paper evaluates the supply chain composition strategies of a set of multinational companies based in the US during the last decade. It highlights the differences in supply chain management behavior before and during the pandemic. Data collected allow testing the impact on the stock market performance of modifying the supply chain network by adding new members that may have a different level of risk. Results show that the market reaction to supply chain updates changed after the Covid-19, and nowadays there is greater attention on the credit risk of the new companies entering the supply chain.
Innovation in tourism as a model of recovery in the postpandemic period
Authors: Ratković Rade , Jablan Milica , Liješević Milan 
Published: October 2022

Abstract
The COVID-19 virus pandemic has influenced tourism policy makers to change their decisions and management methods due to the new challenging situation. The inability to establish normal tourism business, due to difficult mobility of tourists and unfavorable epidemiological situation, has led to finding various innovative solutions that could help improve results in tourism. In addition to improve the current situation, the innovations introduced during the pandemic were aimed at bringing certain changes in the coming period, when the tourism industry is not burdened by the pandemic, which will accelerate the growth of the tourism economy. The main goal of this paper is to point out certain models of implementation of innovative solutions, which could affect the more dynamic development of tourism in Montenegro. The subject of research in this paper are innovations in tourism and their application with special reference to Montenegro. Montenegro has not yet fully recognized the importance of introducing innovations in tourism, so the next period should be dedicated to their implementation. The tourist offer of Montenegro should be enriched by the introduction of new specific forms of tourism, in order to adequately meet the demands of the main emitting markets. In addition to the innovative tourist offer, solutions should be sought in the integration of digital and virtual technologies into marketing functions, because the modern tourist business is increasingly relying on these technologies. Research has shown that it is necessary to work on creating new strategies and plans that will more studiously deal with this issue.