bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reconfigurable triple‐band filtering power divider with continuously tunable center frequency using multimode resonators
Authors: Ping Kang , Huang Nengcai , Lu Jing , Wang Yibo , Li Na , Zhang Gang 
Published: May 2023

AbstractIn this paper, a reconfigurable microstrip triple‐band filtering power divider (FPD) is proposed with continuously independent tunable center frequency (CF) by using varactor‐loaded triple‐mode resonators. The proposed tunable FPD is basically composed of a pair of varactor‐loaded triple‐mode resonators, a common input line, a pair of coupled output lines, and an isolation resistor. Based on the proposed topology, the employed triple‐mode resonators and the input/output are reasonably arranged to achieve desired triple‐passband filtering power division response. To demonstrate the feasibility of the design concept and method, a reconfigurable triple‐band FPD is designed and fabricated. The CFs of the three passbands can be adjusted independently, the frequency tuning ranges of triple‐bands are 1.63–1.79, 2.0–2.11, and 2.26–2.33 GHz with good return loss and high port‐to‐port isolation, respectively.
Low‐profile wideband four‐element MIMO array using Giuseppe Peano AMC surface with improved efficiency and isolation for WLAN systems
Authors: Malekpoor Hossein 
Published: May 2023

AbstractA low profile four‐element multiple‐input multiple‐output (MIMO) array of printed dipole antenna (PDA) backed by second iteration of Giuseppe Peano fractal artificial magnetic conductor (AMC) is introduced for broadband wireless communications. First, a suggested PDA with a pair of microstrip E‐shaped dipoles excited by an E‐shaped microstrip feedline is used to expand the bandwidth in the range of 5.47–6.92 GHz (S11 ≤ −10 dB). Then, the suggested 4 × 4 Giuseppe Peano fractal AMC reflector is loaded into the PDA to exhibit −10 dB measured impedance bandwidth from 4.21 to 7.06 GHz (50.61%) for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications. The proposed four‐element MIMO array loaded by 6 × 6 AMC reflector with diverse polarizations of elements introduces a low profile wideband structure. The measured results of four elements include the broad bandwidths from 4.3 to 7.05 GHz with enhanced gains (more than 8 dBi) and high efficiencies. The high isolations between the four elements with diverse polarizations are obtained larger than 26.5 dB and they reach 66 dB over the operating bandwidth for MIMO systems. The suggested PDA with AMC compared to the PDA without AMC exhibits a size reduction of 51.33%, enhanced radiation efficiency up to 94%, and excellent impedance matching with uni‐directional radiation patterns.
Compact, flexible triple band Sierpinski fractal antenna on a Hilbert patterned ground for W‐WBSN
Authors: Sandhya Mallavarapu , Anjaneyulu Lokam 
Published: May 2023

AbstractWearable Wireless Body Sensor Networks (W‐WBSNs) are the best substitute for traditional healthcare systems by effectively monitoring patients within or remotely from the hospitals. Quite a few tiny sensors linked with one another on the body can efficiently observe the functional status of the human body. The paper introduces a new triple‐band step‐shaped Sierpinski fractal wearable antenna with a Hilbert fractal slot on the partial ground for W‐WBSN applications. It comprises the step‐shaped Sierpinski fractal radiator, situated on the upper side, and a partial ground placed on the lower side of the substrate. A partial ground with a Hilbert fractal slot is used to achieve a compact wearable antenna with improved bandwidth and electromagnetic exposure rate characteristics. The antenna is constructed using a flexible Jeans substrate (permittivity 1.7, loss tangent 0.025) of size 60 × 60 mm2 with a thickness of 2.5 mm as it is a potential candidate. It demonstrates an impedance bandwidth of 6%, 7%, and 10.1%, a gain of 2.57 dBi, 3.608 dBi, and 4.19 dBi, the radiation efficiency of 54.19%, 52.5%, and 54.8% at 3.3 GHz, 5.2 GHz, and 5.8 GHz correspondingly in free space. Also, the peak SAR value of 0.64 W/kg, 0.46 W/kg, and 1.17 W/kg at 3.3 GHz, 5.2 GHz, and 5.8 GHz correspondingly, for 10 g of an average human tissue. The compact, flexible low SAR makes the anticipated antenna a superior contender for wireless wearable network applications.
Nurses' perspectives on shift‐to‐shift handovers in relation to person‐centred nursing home care
Authors: Poelen Anneke , van Kuppenveld Marieke , Persoon Anke 
Published: May 2023

AbstractAimThe aim of this study was to gain insight into nurses' perspectives on the shift‐to‐shift handover in relation to providing Person‐centred care (PCC) in nursing homes.BackgroundPCC is perceived as the gold standard for nursing home care. To preserve the continuity of PCC, an adequate handover during the nurses' shift change is essential. There is, however, little empirical evidence for what constitutes best shift‐to‐shift nursing handover practices in nursing homes.DesignAn exploratory qualitative descriptive study.MethodsNine nurses were selected purposively and through snowball sampling from five Dutch nursing homes. Semi‐structured face‐to‐face and telephone interviews were conducted. Analysis relied on Braun and Clarke's thematic analysis.ResultsFour main themes were identified related to enabling PCC informed handovers: (1) knowing the resident to be enable to provide PCC was key, (2) the actual handover, (3) additional ways of information transfer and (4) nurses' knowledge of the resident prior to start shift.ConclusionThe shift‐to‐shift handover is one way that nurses become informed about residents. Knowing the resident is essential to enable PCC. The fundamental underlying question is to what extent nurses have to know the resident in order to enable PCC. Once that level of detail has been established, in‐depth research is needed to determine the best method for conveying this information to all nurses. Only then can we start to rethink the role of the shift‐to‐shift handover in conveying PCC‐driven information.No Patient or Public Contribution.
Accumulated incidence of falls in people hospitalised with cancer and related factors
Authors: Martí‐Dillet Maria Montserrat , Fernández‐Rodriguez Cristina , Ginesta‐Guanter Aniol , Suñer‐Soler Rosa 
Published: May 2023

AbstractAimTo study the accumulated incidence of falls of people hospitalised with cancer and analyse the related intrinsic and extrinsic factors.DesignA prospective study of people hospitalised with cancer at the Catalan Institute of Oncology.MethodsIntrinsic factors and extrinsic factors related to the fall have been studied. The data were gathered from the clinical history and a specific adverse events notification programme and patients were followed during hospitalisation.ResultsA total of 117 of 6090 patients admitted during the period of study were included, with an accumulated incidence of falls of 0.019. Mean age 63.4 years (SD 11.5) and 65.5% men. Patients with lung cancer accounted for 25.6% of the total number of falls, followed by haematological cancer at 24.8%. Most falls were without consequences (71.8%). The data reveal that people hospitalised with cancer are at greater risk of falling, even though the accumulated incidence observed in the present study is low.
High order accurate and convergent numerical scheme for the strongly anisotropic Cahn–Hilliard model
Authors: Cheng Kelong , Wang Cheng , Wise Steven M. 
Published: May 2023

AbstractWe propose and analyze a second order accurate in time, energy stable numerical scheme for the strongly anisotropic Cahn–Hilliard system, in which a biharmonic regularization has to be introduced to make the equation well‐posed. A convexity analysis on the anisotropic interfacial energy is necessary to overcome an essential difficulty associated with its highly nonlinear and singular nature. The second order backward differentiation formula temporal approximation is applied, combined with Fourier pseudo‐spectral spatial discretization. The nonlinear surface energy part is updated by an explicit extrapolation formula. Meanwhile, the energy stability analysis is enforced by the fact that all the second order functional derivatives of the energy stay uniformly bounded by a global constant. A Douglas‐Dupont type regularization is added to stabilize the numerical scheme, and a careful estimate ensures a modified energy stability with a uniform constraint for the regularization parameter . In turn, the combination with an appropriate treatment for the nonlinear double well potential terms leads to a weakly nonlinear scheme. More importantly, such an energy stability is in terms of the interfacial energy with respect to the original phase variable, which enables us to derive an optimal rate convergence analysis.
Cause analysis framework from a safety capability perspective: Application to Tianjiayi hazardous chemical explosion accident
Authors: Lyu Qian , Fu Gui , Wang Yuxin , Zhang Ran , Wu Yali , Xie Xuecai 
Published: May 2023

AbstractIdentifying the causes of accidents is essential for learning lessons and preventing similar accidents. Safety capability factors cannot be ignored when considering the causes of accidents. Therefore, safety capability is an important perspective to develop a cause analysis framework. This study focuses on a cause analysis framework based on safety capability in the 24Model. First, this study introduces the safety capability in the 24Model and elaborates on the five safety capability dimensions. Second, a 24Model‐based causal analysis framework from a safety capability perspective and its application process is proposed. Third, the Tianjiayi explosion accident is analyzed using the proposed framework. In this accident, fourteen safety capability factors in four categories: safety knowledge, safety awareness, safety habits, and safety psychology are identified and analyzed. The case study provides a critical process demonstration for analyzing safety capability factors and validates the usability of the proposed framework. Additionally, the strengths of the framework and the limitations of the study are discussed. In the future, this framework can facilitate the development of a safety capability factor database and data‐driven safety management approaches.
The impact of English reading attitude on students' achievement at a health science university
Authors: Althewini Abdulaziz , Al Roomy Muhammad A. 
Published: May 2023

AbstractReading occupies a prominent place in teaching English as a foreign language (EFL) as students learn best by engaging with written materials. Positive reading attitudes are believed to affect students' present and future academic success. The aim of this study is to investigate the impact of English reading attitudes on students' achievement. A total of 267 first‐year Saudi health science university students were selected to participate in this study during the academic year 2021/2022. The study followed a simple random sampling technique where every students has an equal chance to participate. Two data sources were used: a reading attitude questionnaire administered to students and their cumulative GPA. The questionnaire was adopted from Yamashita (2007) and consisted of 22 items covering five categories: comfort, anxiety, intellectual value, practical value and linguistic value. The study revealed that students were clearly less comfortable and more anxious about reading in English. This had a negative impact on their achievements, especially on the three English courses they had to take that year. The study concluded with some pedagogical implications and recommendations for further research.
An Exploration on Copper‐Based Metal‐Organic Frameworks as Propitious Heterogeneous Catalyst for Coupling Reactions
Authors: Singh Shweta , Kumar Parveen , Soni Akta , Nemiwal Meena 
Published: May 2023

AbstractMetal‐organic frameworks (MOFs) have been considered as adaptable alternatives of interest in catalytic reactions. Modern MOFs research and advancements strongly support their employment as catalysts to produce significant organic molecules. Concerning how such substances might be utilized in heterogeneous catalysis, the entire potency of MOFs in value‐added organic transformations must be thoroughly investigated. Standard MOFs components including encapsulation materials, linkers, metal‐nodes, and coated structures frequently provide effective catalytic active sites that provide ways to lessen human efforts to implement novel natural reactions. The significant aspects of using MOFs as recyclable catalysts are their convenient fabrication, consistent porosity, substantial pore volume, reusability and durable framework in addition to cost‐effectiveness. Since MOFs were extensively explored, they may have been used to fabricate medicinal active compounds through coupling and organic transformations. In this review, several Cu‐based MOFs are examined along with their catalytic attributes that assist with the selective fabrication of the product organic moieties via various cross‐coupling reactions.
Fabrication of a Superhydrophobic SiO2 Coating with Anticorrosive Protection
Authors: Zhou Chaogang , Chen Qiya , Wang Shuhuan , Zhao Jingjing , Ai Liqun , Chen Qinggong , Lin Xiuzhou , Hu Chuanbo 
Published: May 2023

AbstractIn this work, the carbon steel matrix obtained a silane coupling agent (KH550) modified rough SiO2 coating, covering it by dip‐coating method. The modified SiO2 (K‐SiO2) coating on the carbon steel was coated with stearic acid (STA) and adjusted the proportion of SiO2 nanoparticles and KH550 to achieve the more perfect superhydrophobic sample. It turns out that SiO2 particles were evenly disturbuted and linked together by KH550 to form a stable structure. The K‐SiO2 coating liquid was further added a modifier of STA to achieve low surface energy, and then developed a durable and corrosion resistant coating. The superhydrophobic coating liquid was coated on the carbon steel to obtain a multifunctional superhydrophobic coating (contact angle=163°, rolling angle=1.4°), having excellent self‐cleaning, adhension, durability and corrosion resistance.
Diverse Synthetic Transformations Using 4‐Bromo‐3,3,4,4‐tetrafluorobut‐1‐ene and Its Applications in the Preparation of CF2CF2‐Containing Sugars, Liquid Crystals, and Light‐Emitting Materials
Authors: Ohsato Haruka , Kawauchi Kazuma , Yamada Shigeyuki , Konno Tsutomu 
Published: May 2023

AbstractOrganic molecules with fluoroalkylene scaffolds, especially a tetrafluoroethylene (CF2CF2) moiety, in their molecular structures exhibit unique biological activities, or can be applied to functional materials such as liquid crystals and light‐emitting materials. Although several methods for the syntheses of CF2CF2‐containing organic molecules have been reported to date, they have been limited to methods using explosives and fluorinating agents. Therefore, there is an urgent need to develop simple and efficient approaches to synthesize CF2CF2‐containing organic molecules from readily available fluorinated substrates using carbon‐carbon bond formation reactions. This personal account summarizes the simple and efficient transformation of functional groups at both ends of 4‐bromo‐3,3,4,4‐tetrafluorobut‐1‐ene and discusses its synthetic applications to biologically active fluorinated sugars and functional materials, such as liquid crystals and light‐emitting molecules.
A genome‐wide association study of morphometric traits in dromedaries
Authors: Bitaraf sani Morteza , Karimi Omid , Burger Pamela Anna , Javanmard Arash , Roudbari Zahra , Mohajer Mokhtar , Asadzadeh Nader , Zareh Harofteh Javad , Kazemi Ali , Naderi Ali Shafei 
Published: May 2023

AbstractBackgroundInvestigating genomic regions associated with morphometric traits in camels is valuable, because it allows a better understanding of adaptive and productive features to implement a sustainable management and a customised breeding program for dromedaries.ObjectivesWith a genome‐wide association study (GWAS) including 96 Iranian dromedaries phenotyped for 12 morphometric traits and genotyped‐by‐sequencing (GBS) with 14,522 SNPs, we aimed at identifying associated candidate genes.MethodsThe association between SNPs and morphometric traits was investigated using a linear mixed model with principal component analysis (PCA) and kinship matrix.ResultsWith this approach, we detected 59 SNPs located in 37 candidate genes potentially associated to morphometric traits in dromedaries. The top associated SNPs were related to pin width, whither to pin length, height at whither, muzzle girth, and tail length. Interestingly, the results highlight the association between whither height, muzzle circumference, tail length, whither to pin length. The identified candidate genes were associated with growth, body size, and immune system in other species.ConclusionsWe identified three key hub genes in the gene network analysis including ACTB, SOCS1 and ARFGEF1. In the central position of gene network, ACTB was detected as the most important gene related to muscle function. With this initial GWAS using GBS on dromedary camels for morphometric traits, we show that this SNP panel can be effective for genetic evaluation of growth in dromedaries. However, we suggest a higher‐density SNP array may greatly improve the reliability of the results.
Reducing Water Related Risks in the Lower Danube Through Nature Based Solution Design: A Stakeholder Participatory Process
Authors: Scrieciu Albert , Rotaru Sabin , Alexandrescu Bogdan , Catianis Irina , Nanu Florentina , Marchal Roxane , Pagano Alessandro , Giordano Raffaele 
Published: May 2023

AbstractThis chapter describes the research conducted in the Lower Danube case study to understand the role of natural assurance schemes in complex natural, economic and social contexts. In order to improve the accuracy, replicability and the scalability of the natural assurance scheme to be developed and potentially implemented, we have concentrated our efforts on the Dabuleni-Potelu-Corabia (DPC) enclosure, a land reclamation area exposed to water-related risks. NAIAD Project proposed the implementation of a wetland restoration project by designing a Nature Based Solution (NBS) for dealing with flood risk. The implementation in the Romanian case study aimed at providing support to facilitate both local collaboration between the different stakeholders and the engagement of these local stakeholders in decision-making and policy setting, by integrating their (local) knowledge with the results of scientific models. The entire process aimed to design intervention scenarios based on NBS implementation and the key co-benefits to be produced, followed by the assessment of its effectiveness.Furthermore, to assess the DPC enclosure vulnerability to water-related hazards, we performed an economic assessment based on the literature review and the development of a GIS infra-territorial indicator methodology. The GIS-based indicators can support the lack of insurance data, with the objective to define the most exposed areas. The literature review together with the GIS analysis were able to provide a reliable cost estimation of the damage related to destroyed and affected dwellings. This indicator should be a tool to help the decision-making process to assess the case study vulnerability and to select the more appropriate NBS.
Urban River Restoration, a Scenario for Copenhagen
Authors: Jørgensen Morten Ejsing , Kidmose Jacob , van der Keur Peter , Gómez Eulalia , Giordano Raffaele , Henriksen Hans Jørgen 
Published: May 2023

AbstractUrban flooding is an increasing hazard and expected to aggravate with climate change. The opening of a piped urban river in Copenhagen is explored to mitigate urban flooding as a result of a rising groundwater table. In the Copenhagen case study, a hydrological model has been used to calculate the effect of reopening a currently piped river to its natural environment as a nature-based solution (NBS). From the results of modelling scenarios, we have set up a simple damage function to calculate the avoided costs for the river basin by comparing difference in groundwater levels with and without NBS.Stakeholders were engaged from the first stages of the case study. The integration of stakeholder’s knowledge in the co-design and implementation process of NBS to support complex decision-making processes was carried out by (1) participatory modelling activities to elicit and structure stakeholder’s risk perception, (2) mapping the interaction among decision-makers and stakeholders, and by (3) deriving Fuzzy Cognitive Maps (FCM) from Group Model Building.The results show that by reopening the river, an economic benefit is obtained because the river now functions as a drainage channel which prevents flooding by groundwater of subterranean structures, notably housing cellars, and receives stormwater from cloudburst rainfall events. The FCM simulation showed that NBS implementation requires effective cooperation among different decision-makers to define potential interventions and to reduce the level of conflicts and to facilitate collaborative decision-making.
Insurance and the Natural Assurance Value (of Ecosystems) in Risk Prevention and Reduction
Authors: Marchal Roxane , Moncoulon David , López Gunn Elena , Weinberg Josh , Thakar Kanika , Altamirano Mónica , Piton Guillaume 
Published: May 2023

AbstractClimate change is increasing the frequency and intensity of natural disasters and can threaten the functions of ecosystems. Affected, damaged or destroyed ecosystems in turn also make our societies more vulnerable to natural hazards and climate change (i.e. their assurance value). In addition, expanding communities and concentrations of wealth in high-risk areas are increasing risk exposure dramatically. This chapter outlines the growing interest in the protective role nature-based solutions (NBS) can play in buffering against risks posed by natural hazards. It presents mechanisms and potential roles of the insurance industry to facilitate loss prevention through NBS. The use of catastrophe models to quantify the assurance value of nature (in line with Chaps. 1 and 2), the benefits of nature in reducing natural hazards-related damages have been highlighted. Catastrophe models developed and run by insurance companies are well-suited to support the quantification of the avoided damage provided by NBS. This can be performed in complement to research institutions assessments of co-benefits NBS provide (as outlined in the case studies’ chapters). The findings developed in this chapter make a strong case for pro-active engagement of the insurance industry in assessing nature-based risk reduction measures and public/private plans for implementation and monitoring.
Graphical Abstract