bluuebunny/crossref_metadata_2025_split huggingface dataset:
Secured cloud SCADA system implementation for industrial applications
Authors: Osman Fawzy A. , Hashem Mohamed Y. M. , Eltokhy Mostafa A. R. 
Published: February 2022

AbstractThe proposed Remote SCADA System (RSS) is a smarter, faster and more reliable way to control high power machines and monitor their sensors, data, and failures. The proposed system focuses mainly on building our own complete SCADA software and not using open-source SCADA software. The proposed RSS can use unlimited number of added Remote Terminal Units (RTU) nodes and each of them can handling unlimited number of input/output and can be used under different operating systems like Windows and Android. Using RSS all machines can be monitored and controlled by a single click from anywhere at any time. By doing this a real-time response from RSS system can be achieved. It’s mainly based on standard communication techniques between remote nodes and single server-side application that talk to each node with its own ID and modify its instant database. So that every time accessing this web application, a real-time access to these nodes data and a virtual control room controls each General Purpose Input/Output (GPIO) in the selected node can be gotten. When a new event is happened in server-side program, it will be broadcasted to all related. On RSS there are two main points to deal with, the request latency and security of the system. This paper studied how the system latency and security are improved to obtain the needed values. The proposed RSS is a very secure program which have 4 security levels; authentication, authorization, RSA and CBC encryption system. Also, the encryption algorithms used in RSS are RSA and CBC block cipher encryption system. It is mixed way to prevent any attacker from breaking the cipher. First of all, RSA generates the public and private keys, and then CBC generates its Initialization vector and a random encryption key. Then a special function sends all of these keys encrypted with a pre-stored token in the data base and node memory which varied from node to another. Finally, node generates its private key from loaded public key. With this combination the speed of symmetric encryption system and the security of asymmetric encryption system can be achieved. On the other hand, the level of security firewalls needed to be Brocken by the attacker to brock the cipher is increased. The proposed system achieved low cost comparing with reported work; it is lower than Arduino + WIFI method by five times and 13 times lower than Raspberry-PI method. The proposed system is applied in educational systems, where it is used for teaching unlimited number of students Online.
Risk factors for readmission among patients receiving outpatient parenteral antimicrobial therapy: a retrospective cohort study
Authors: Douiyeb Sabrine , de la Court Jara R. , Tuinte Bram , Sombogaard Ferdi , Schade Rogier P. , Kuijvenhoven Marianne , Minderhoud Tanca , Sigaloff Kim C. E. 
Published: February 2022

AbstractBackground In the Netherlands, home treatment with intravenous antimicrobial therapy is a relatively new concept. Although several studies have shown that outpatient parenteral antimicrobial therapy (OPAT) can be administered safely, people receiving antimicrobials at home remain at risk for adverse events, including readmission. Aim The aim of our retrospective study was to identify risk factors for readmission in patients discharged with OPAT. Method Patients who were at least 18 years or older, discharged with OPAT between January 2016–December 2018 were included. Variables that were collected consisted of baseline demographics, complications, readmission within 30 days and treatment failure. Multivariate logistic regression analysis was performed to identify risk factors for readmission. Results A total of 247 patients were included; the most common reason for OPAT was bone and joint infections (17%). Penicillin (37%), cephalosporin (26%) and vancomycin/aminoglycoside (15%) were the most commonly prescribed antimicrobials. Among patients receiving medication subject to therapeutic drug monitoring (i.e. aminoglycosides or vancomycin), 51% (19/37) received weekly therapeutic drug monitoring. Receiving aminoglycosides or vancomycin (adjusted OR 2.05; 95% CI 1.30–3.25, p < 0.05) and infection of prosthetic material (adjusted OR 2.92, 95% CI 1.11–7.65, p < 0.05) were independent risk factors associated with readmission. Conclusion Although patients receiving medication subject to therapeutic drug monitoring are at higher risk of readmission, only half of the patients discharged with aminoglycosides or vancomycin were monitored according to IDSA guidelines. A specialized team in charge of monitoring patients with OPAT is more likely to increase the rate of monitoring to prevent readmissions and complications.
Gender differences in physical activity status and knowledge of Irish University staff and students
Authors: McCarthy Claire , Warne Joe P. 
Published: February 2022

Abstract
Objectives
The aim of this study is to examine gender differences in physical activity status and knowledge of physical activity guidelines in University staff and students.

Methods
820 survey respondents, 419 males and 401 females (Age: mean 30 ± 12, median 24 years; Weight: mean 73.4 ± 15.8 kg; Stature: mean 172.1 ± 10.2 cm) were recruited via internal email. All participants completed a self-administered online format of the Global Physical activity Questionnaire.

Results
Less females were regularly active than males in students (p ≤ 0.001; Cramer’s V = 0.232 [small]), and staff (p = 0.003; Cramer’s V = 0.249 [small]). Overweight BMI incidence was greater among male students (p = 0.014; Cramer’s V = 0.13 [small]), and staff (p = 0.007; Cramer’s V = 0.31 [large]). A total of 43% of males and 29% of females were overweight or obese. No significant difference between genders for PA recommendations knowledge was observed (students; p = 0.174; Cramer’s V = 0.054 [trivial], staff; p = 0.691; Cramer’s V = 0.035 [trivial]). No significant difference between genders for disease incidence was observed (students; p = 0.894; Cramer’s V = 0.005 [trivial], staff; p = 0.237, Cramer's V = 0.101 [small]).

Conclusions
Males had greater levels of PA participation and incidence of overweight BMI compared to females. These findings suggest PA status alone does not determine BMI status. Further investigation is needed to determine factors related to BMI status.
A discrete element study on the deformation and degradation of coal-fouled ballast
Authors: Chen Jing , Vinod Jayan S. , Indraratna Buddhima , Ngo Ngoc Trung , Gao Rui , Liu Yangzepeng 
Published: February 2022

AbstractThis paper presents the results of Discrete Element Modelling (DEM) which quantitively examine the effect of coal fouling on the deformation and degradation of ballast upon cyclic loading. The degradation model described herein considers the Weibull distribution effects in tandem with a granular medium hardening law that incorporates the maximum contact criterion to capture surface abrasion and corner breakage of angular ballast. The DEM model had been calibrated initially with laboratory data obtained from large-scale direct shear testing. Subsequently, a series of cubical shear test simulations have been carried out using DEM to understand the behaviour of fouled ballast whereby the numerical particle degradation modelling could simulate the experimental response of the ballast assembly at various fouling levels. The results show that the increased level of fouling exacerbates the sleeper settlement, while decreasing the resilient modulus and the particle breakage. Ballast beneath the sleeper experiences significant breakage compared to the crib ballast, and not surprisingly, the extent of damage decreases with depth. Rigorous microscopic analysis is also presented in relation to inter-particle contacts, particle velocity and anisotropy of the ballast assembly. This micromechanical examination highlights that the decrease in ballast breakage for fouled assemblies is predominantly attributed to the inevitable decrease in inter-particle contact pressures as effected by the coating of ballast aggregates by the coal fines.
Short Duration Heat Treatments before Aging Increase Mechanical Hysteresis of Pseudoelastic NiTi Alloy
Authors: Romanò Jacopo , Lazzari Fabio , Garavaglia Lorenzo , Pittaccio Simone 
Published: February 2022

AbstractHigh temperature (550 °C) and short duration (10, 15, 20 s) heat treatments were performed on pseudoelastic NiTi alloy in addition to the conventional aging process in order to increase the mechanical hysteresis of the material. Pre-treated and aged samples were compared with plain aged ones through mechanical testing, powder X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The introduction of the pre-treatment, in combination with the aging process, was shown to increase the mechanical hysteresis of the aged samples up to ~30% after stabilization. XRD analysis showed how the introduction of the pre-treatment introduces a recovery of the residual stresses in the material microstructure, as well as the nucleation of different sets of metastable precipitates (such as TiNi3). We thus observe that the combination of pre-treatment and aging affects the alloys microstructure, causing a series of effects that synergise in increasing the material hysteresis.
NiCoCrAlX (X = Y, Hf and Si) Bond Coats by Cold Spray for High Temperature Applications
Authors: Cojocaru Cristian V. , Aghasibeig Maniya , Irissou Eric 
Published: February 2022

AbstractMCrAlX powder compositions (M = Ni,Co and X = Y, Hf, Si or combination) are often thermally sprayed via vacuum plasma spray (VPS), low pressure plasma spray (LPPS) or high velocity oxy-fuel to produce high temperature oxidation and hot corrosion resistant bond coats for thermal barrier coatings (TBCs). Cold spray technology is currently considered as a promising alternative to the traditional thermal spray solutions, having the advantage of delivering oxide-free and very dense metallic coatings at relatively lower costs compared to VPS and LPPS. NiCoCrAlY and NiCoCrAlYHfSi bond coats were deposited using a high pressure cold spray system and the influence of feedstock properties on the deposited bond coats were investigated. To improve NiCoCrAlYHfSi bond coat deposition, laser assisted cold spray (LACS) was employed. The results show that LACS can be successfully used to deposit this particular powder while eliminating nozzle erosion and low deposition efficiency disadvantages observed with conventional cold spray. To identify the optimal LACS setup for deposition of dense and uniform coatings, different laser/spray jet configurations were examined. TBCs with bond coats sprayed at the optimal configuration were assessed isothermally at 1150 °C in air for up to 500 h, and the results showed formation of a thermally grown oxide layer composed of predominantly Al2O3 with embedded small clusters of Hf-Y-rich oxides.
The Thailand Cave Rescue: General Anaesthesia in Unique Circumstances Presents Ethical Challenges for the Rescue Team
Authors: Irwin Mark A. 
Published: February 2022

AbstractIn 2018, the remarkable rescue of twelve young boys and their football coach trapped in a flooded cave in Thailand captured worldwide attention. The rescue required the boys to be dived out of the cave system while fully anaesthetized which presented unique practical and ethical challenges for the rescue team. Major departures from normal anaesthetic practice were required. Taking anaesthetized children underwater was unprecedented, complex, and dangerous. To do this underground in a flooded cave meant the risks were extreme. Using a principlist approach, this essay will outline the rescue plan highlighting the ethical dilemmas faced by the rescue team. Informed consent and full disclosure of information are justifiably waived in emergency disaster scenarios. Beneficence as a guiding principle becomes a major challenge when all rescue options appear destined to cause likely fatalities of healthy young boys. Importantly, virtues and virtue ethics also have a vital role to play when confronting and dealing with ethical challenges in disaster scenarios—this will be discussed with particular reference to the cave rescue.
The boomerang effect of zero pricing: when and why a zero price is less effective than a low price for enhancing consumer demand
Authors: Fan Xiaomeng , Cai Fengyan Cindy , Bodenhausen Galen V. 
Published: February 2022

AbstractPrior literature has demonstrated the power of zero pricing to boost consumer demand, but the current research shows a novel “boomerang effect”: a zero (vs. low, nonzero) price can lower demand when the offer comes with high incidental costs (e.g., the time cost in commuting to an offline class; the physical risk of getting a new vaccine). Five studies show that zero pricing, relative to low pricing, has a boosting (boomerang) effect on demand when incidental costs are low (high). The diverging effects of zero pricing on demand are explained by a dual-process model with a positive affective pathway and negative scrutiny pathway. Zero pricing triggers both positive affect and cognitive scrutiny of incidental costs; when incidental costs are high, the scrutiny pathway overrides the affective pathway and decreases demand. The finding has managerial implications as incidental costs often vary widely between marketing channels and over a product’s life cycle.
Pathophysiology of Demineralization, Part II: Enamel White Spots, Cavitated Caries, and Bone Infection
Authors: Roberts W. Eugene , Mangum Jonathan E. , Schneider Paul M. 
Published: February 2022

AbstractPurpose of ReviewCompare noninfectious (part I) to infectious (part II) demineralization of bones and teeth. Evaluate similarities and differences in the expression of hard tissue degradation for the two most common chronic demineralization diseases: osteoporosis and dental caries.Recent FindingsThe physiology of demineralization is similar for the sterile skeleton compared to the septic dentition. Superimposing the pathologic variable of infection reveals a unique pathophysiology for dental caries.SummaryMineralized tissues are compromised by microdamage, demineralization, and infection. Osseous tissues remodel (turnover) to maintain structural integrity, but the heavily loaded dentition does not turnover so it is ultimately at risk of collapse. A carious tooth is a potential vector for periapical infection that may be life-threatening. Insipient caries is initiated as a subsurface decalcification in enamel that is not detectable until a depth of ~400μm when it becomes visible as a white spot. Reliable detection and remineralization of invisible caries would advance cost-effective wellness worldwide.
1H, 13C and 15N resonance assignment of backbone and IVL-methyl side chain of the S135A mutant NS3pro/NS2B protein of Dengue II virus reveals unique secondary structure features in solution
Authors: Agback Peter , Lesovoy Dmitry M. , Han Xiao , Sun Renhua , Sandalova Tatyana , Agback Tatiana , Achour Adnane , Orekhov Vladislav Yu. 
Published: February 2022

AbstractThe serotype II Dengue (DENV 2) virus is the most prevalent of all four known serotypes. Herein, we present nearly complete 1H, 15N, and 13C backbone and 1H, 13C isoleucine, valine, and leucine methyl resonance assignment of the apo S135A catalytically inactive variant of the DENV 2 protease enzyme folded as a tandem formed between the serine protease domain NS3pro and the cofactor NS2B, as well as the secondary structure prediction of this complex based on the assigned chemical shifts using the TALOS-N software. Our results provide a solid ground for future elucidation of the structure and dynamic of the apo NS3pro/NS2B complex, key for adequate development of inhibitors, and a thorough molecular understanding of their function(s).
Teaching meditation to college students within an historical and cultural context: A qualitative analysis of undergraduate reflections on contemplative practice
Authors: Sensiper Sylvia 
Published: February 2022

AbstractThere is a growing interest in contemplative practices in higher education. Researchers have explored the use of meditation to address the increasing requests for counseling and as a resource for improving student mental health. Contemplative practices have also been incorporated into the fundamental learning objectives in some US universities. This study of teaching methods uses first-person narratives from twenty-three 10-week seminars to examine how meditation practice benefited undergraduate students at a large public university in the US. The seminar, “Contemporary American Buddhism: How Meditation Became a Part of the Mainstream,” provided meditation instruction within an historical and cultural context and was taught over a nine-year period. Four hundred undergraduates’ reflective writings were included in this study. During the seminars, students participated in structured in-class meditations, practiced mindfulness exercises, read contemporary texts, viewed recent media and wrote reflective exercises. Students learned how meditation has been adapted for contemporary society, engaged in critical thinking, and reflected on their experiences. An examination of their narrative self-reports indicates outcomes similar to studies using highly structured meditation protocols; an improvement in overall well-being, lessened anxiety, better focus and increased emotional control. This study of teaching methodology also shows that students expressed a desire to continue the practice once the seminar was complete. The results suggest that a structured and systematic investigation of this teaching model would add significantly to the discussion on how to teach contemplative practice to college students.
Cross-cultural assessment and comparisons of risk tolerance across domains
Authors: Shou Yiyun , Olney Joel , Wang Meng-Cheng 
Published: February 2022

AbstractRisk attitudes are known to play an important role in influencing one’s behavior under conditions of uncertainty. To date, cultural influences on risk attitudes - beyond the effects they have on perceived risk - have not been well understood. Having a cross-culturally invariant measure of risk attitudes is a prerequisite for carrying out more in depth explorations in this area. The current study applied the domain-specific risk attitudes framework and focused on the Chinese and US cultural contexts. Using novel network analysis techniques, we explored domain-specific patterns of risk attitudes in Chinese and US community samples and we subsequently developed a version of the Multi-Domain Risk Tolerance scale (MDRT-EC) that had similar applicability in both samples. The MDRT-EC demonstrated excellent psychometric characteristics and achieved strong measurement invariance across both samples. The associations between MDRT-EC domain scales and criterion scales were also similar between the two samples, further indicating the measurement invariance of the MDRT-EC. Finally, we used the MDRT-EC to explore cultural differences in risk attitudes across domains and their predictive relations with a range of lifestyle behaviors.
Understanding realistic attacks on airborne collision avoidance systems
Authors: Smith Matthew , Strohmeier Martin , Lenders Vincent , Martinovic Ivan 
Published: February 2022

AbstractAirborne collision avoidance systems provide an onboard safety net should normal air traffic control procedures fail to keep aircraft separated. These systems are widely deployed and have been constantly refined over the past three decades, usually in response to near misses or mid-air collisions. Recent years have seen security research increasingly focus on aviation, identifying that key wireless links—some of which are used in collision avoidance—are vulnerable to attack. In this paper, we go one step further to understand whether an attacker can remotely trigger false collision avoidance alarms. Primarily considering the next-generation Airborne Collision Avoidance System X (ACAS X), we adopt a smodelling approach to extract attacker constraints from technical standards before simulating collision avoidance attacks against standardized ACAS X code. We find that in 44% of cases, an attacker can successfully trigger a collision avoidance alert which on average results in a 590 ft altitude deviation; when the aircraft is at lower altitudes, this success rate rises considerably to 79%. Furthermore, we show how our simulation approach can be used to help defend against attacks by identifying where attackers are most likely to be successful.
Benthic diatoms and macroinvertebrates status with relevant to sediment quality of islands shores in the Nile River, Egypt
Authors: Abdel-Satar Amaal M. , Belal Dalia M. , Salem Salem G. , Abdelmageed Adel A. , Abdo Mohamed H. , Gawad Soad S. Abdel , Al-Afify Afify D. G. 
Published: February 2022

AbstractSediments are utilized as a marker for events that endure long enough to manifest their environmental impacts and determine the contamination levels. The purpose of the present study was to highlight the current sediment quality of four Nile islands shores by utilizing a variety of physical, chemical, and biological aspects and indices. In addition, the status of benthic diatoms and macroinvertebrates, as well as their responses to sediment variables were investigated. The metals followed a decreasing concentration order: Al > Fe > Mn > Zn > Ni ≈ Cr > Cu > Co > Pb > Cd. The outcomes of metal pollution indices revealed some localized contaminated sites, by mostly Ni and Cd. In addition, a moderate toxic risk from metals was observed for El-Keratten shores, while the sediments of El-Warraq, El-Zamalek, and El-Manial islands shores were at low toxic risk. A total of 112 diatom species belonging to 24 genera were identified in the total sample set, where most of the diatoms encountered were cosmopolitan. Metals had a remarkable impact on the composition, distribution, and dominance of diatom assemblages, but had little effect on diatom diversity, while there was a noticeable effect of grain size on diatom distribution and diversity. Thirty-four species of benthic invertebrates were identified in the collected samples from the islands shores. The dominant taxa and groups of benthic invertebrates at different islands were affected by various sediment parameters, where the levels and types of such variables differed from one species to another.
Graphical abstract
An Assessment of Alternate Fertilizer Potential of Glauconite Deposits in India using Simple Beneficiation Methods
Authors: Choudhury Tathagata Roy , P.V. Sunder Raju , Shaikh Tehreen , Banerjee Santanu 
Published: February 2022

Abstract
This study presents an assessment of alternate fertilizer potential of glauconite deposits in India with precise stratigraphy, dimension of the deposit, and its K2O contents for understanding their alternate potash fertilizer potential. Further, it provides simple beneficiation methods to separate glauconite from the rest of the sediments. Many of the glauconite deposits, particularly those of Precambrian age, are considerably thick and are laterally extensive. Although the content of K2O is low in the bulk rock, it is moderate to high in the glauconites. The glauconite content of the original deposits is low, mostly in the range of 10 to 20 wt%. Inexpensive and simple methods such as sieving and electromagnetic separation enhance the glauconite content up to 57 wt% in selected samples. This study is crucial for planning alternatives of conventional potash fertilizer, which are expected to be exhausted in the near future.