bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ultracompact Single‐Photon Sources of Linearly Polarized Vortex Beams
Authors: Liu Xujing , Kan Yinhui , Kumar Shailesh , Kulikova Liudmilla F. , Davydov Valery A. , Agafonov Viatcheslav N. , Zhao Changying , Bozhevolnyi Sergey I. 
Published: August 2023

AbstractUltracompact chip‐integrated single‐photon sources of collimated beams with polarization‐encoded states are crucial for integrated quantum technologies. However, most of currently available single‐photon sources rely on external bulky optical components to shape the polarization and phase front of emitted photon beams. Efficient integration of quantum emitters with beam shaping and polarization encoding functionalities remains so far elusive. Here, ultracompact single‐photon sources of linearly polarized vortex beams based on chip‐integrated quantum emitter‐coupled metasurfaces are presented, which are meticulously designed by fully exploiting the potential of nanobrick‐arrayed metasurfaces. The authors first demonstrate on‐chip single‐photon generation of high‐purity linearly polarized vortex beams with prescribed topological charges of 0, − 1, and +1. The multiplexing of single‐photon emission channels with orthogonal linear polarizations carrying different topological charges are further realized and their entanglement is demonstarated. The work illustrates the potential and feasibility of ultracompact quantum emitter‐coupled metasurfaces as a new quantum optics platform for realizing chip‐integrated high‐dimensional single‐photon sources.
Indoor Photovoltaic Fiber with an Efficiency of 25.53% under 1500 Lux Illumination
Authors: Zhu Zhengfeng , Lin Zhengmeng , Zhai Weijie , Kang Xinyue , Song Jiatian , Lu Chenhao , Jiang Hongyu , Chen Peining , Sun Xuemei , Wang Bingjie , Wang Zhong‐Sheng , Peng Huisheng 
Published: August 2023

AbstractPhotovoltaic devices represent an efficient electricity generation mode. Integrating them into textiles offers exciting opportunities for smart electronic textiles—with the ultimate goal of supplying power for wearable technology—which is poised to change how electronic devices are designed. Many human activities occur indoors, so realizing indoor photovoltaic fibers (IPVFs) that can be woven into textiles to power wearables is critical, although currently unavailable. Here, a dye‐sensitized IPVF is constructed by incorporating titanium dioxide nanoparticles into aligned nanotubes to produce close contact and stable interfaces among active layers on a curved fiber substrate, thus presenting efficient charge transport and low charge recombination in the photoanode. With the combination of highly conductive core–sheath Ti/carbon nanotube fiber as a counter electrode, the IPVF shows a certified power conversion efficiency of 25.53% under 1500 lux illuminance. Its performance variation is below 5% after bending, twisting, or pressing for 1000 cycles. These IPVFs are further integrated with fiber batteries as self‐charging power textiles, which are demonstrated to effectively supply electricity for wearables, solving the power supply problem in this important direction.
Flexible Energy Storage Devices to Power the Future
Authors: He Junyuan , Cao Leiqing , Cui Jiaojiao , Fu Gangwen , Jiang Ruiyi , Xu Xi , Guan Cao 
Published: August 2023

AbstractThe field of flexible electronics is a crucial driver of technological advancement, with a strong connection to human life and a unique role in various areas such as wearable devices and healthcare. Consequently, there is an urgent demand for flexible energy storage devices (FESDs) to cater to the energy storage needs of various forms of flexible products. FESDs can be classified into three categories based on spatial dimension, all of which share the features of excellent electrochemical performance, reliable safety, and superb flexibility. In this review, the application scenarios of FESDs are introduced and the main representative devices applied in disparate fields are summarized first. More specifically, it focuses on three types of FESDs in matched application scenarios from both structural and material aspects. Finally, the challenges that hinder the practical application of FESDs and the views on current barriers are presented.
Minimum production scale for economic feasibility of a titanium dioxide plant
Authors: Oladipupo Peter , Raman Arvind , Pekny Joseph F. 
Published: August 2023

AbstractTitanium dioxide (TiO2) is an important industrial chemical that is completely import dependent in Nigeria. Local entrepreneurs seeking to establish a production scale TiO2 plant in Nigeria face both financing challenges and challenges to right‐sizing plants to best fit the local markets. In this study, we ask: What is the minimum scale for the economic feasibility of establishing a TiO2 plant in Nigeria, considering the country's currently small market size for the chemical and the limitations imposed by the economy of scale? We determine that the required minimum production scale varies from 21 867.44 to 11 202.16 tonnes per annum (tpa) for an investment lifetime of 10–20 years – compared to a typical developed world plant size of 150 000 tpa. A sensitivity study shows that minimum production scale decreases rapidly as product price increases, enhancing the economic prospect of a small‐scale plant in Nigeria where the retail price of TiO2 is as high as 328% of the average global price. Further studies emphasize the importance of future growth in demand and government incentives in enhancing the plant's economic prospect. The modeling framework developed and used for this analysis is adaptable to other applications in determining minimum scales for economic feasibility of constructing and operating flexible chemical plants in young and uncertain markets with potential to scale in the future. This study offers unique contributions to address investment challenges around chemical manufacturing, a critical component of industrialization and economic development for developing countries.
Multi‐trait genomic predictions using GBLUP and Bayesian mixture prior model in beef cattle
Authors: Wang Zezhao , Ma Haoran , Li Hongwei , Xu Lei , Li Hongyan , Zhu Bo , Hay El Hamidi , Xu Lingyang , Li Junya 
Published: August 2023

AbstractMultiple trait genomic selection incorporating correlated traits can improve the predictive ability of low‐heritability traits. In this study, we evaluated genomic prediction accuracy using multi‐trait BayesCπ method (MT‐BayesCπ), which allows for a broader range of mixture priors for important traits in beef cattle. We compared the prediction performance of MT‐BayesCπ with single‐trait genomic best linear unbiased prediction (ST‐GBLUP), multi‐trait GBLUP (MT‐GBLUP), and single‐trait BayeCπ (ST‐BayesCπ) methods. We found that ribeye area (REA) and ribeye weight (REWT) showed high heritability, while slaughter weight (SWT) and carcass weight (CWT) displayed medium heritability, and slaughter rate (SR) and feedlot average daily gain (FDG) showed low heritability. Highly positive genetic correlations were observed between CWT and SWT (0.981) and SR and REWT (0.921). Notably, the MT‐BayesCπ method showed superior predictive abilities compared to other models. Using MT‐BayesCπ method, the accuracy increased from 0.272 to 0.694 for CWT compared to ST‐GBLUP and ST‐BayesCπ. MT‐GBLUP and ST‐BayesCπ showed similar prediction accuracies, while MT‐BayesCπ showed the least biased evaluations. Additionally, our results suggested that prediction accuracy of low‐heritability traits significantly increased when they were combined with traits with high genetic correlation in a multi‐trait prediction. Our study suggests that multi‐trait genomic predictions using GBLUP and Bayesian mixture prior models is feasible for genomic selection in beef cattle. Our findings indicate that MT‐BayesCπ outperforms other models (ST‐GBLUP, MT‐GBLUP and ST‐BayesCπ), especially for low‐heritability traits.
Understanding consumers' purchase intention in virtual reality commerce environment
Authors: Hsiao Kuo‐Lun , Lin Kuan‐Yu 
Published: August 2023

AbstractVirtual reality (VR) has developed rapidly and drawn the attention of businesses. E‐commerce practitioners have used VR to improve business performance and satisfy consumers' needs by enhancing the shopping experience and increasing purchase intention. To explore the effects of VR shopping platforms on purchase intention, this study developed a theoretical framework on the basis of task–technology fit. The framework comprises technological characteristics and user needs (intrinsic and extrinsic motivation) and can be used to investigate perceived needs–technology fit and identify factors affecting intention to purchase on VR platforms. This study distributed an online questionnaire and received 336 responses. Analysis was performed using partial least squares structural equation modeling. The results suggested that purchase intention is stronger when perceived needs–technology fit is closer. Hedonic needs play a vital role in perceived needs–technology fit. In terms of technological characteristics, relative advantage, and service compatibility strongly affect perceived needs–technology fit. In addition, feelings of spatial presence, a key component of VR, positively affect relative advantage, service compatibility, and trialability and negatively affect complexity. The implications of the findings are also discussed.
Foxi3GFP and Foxi3CreER mice allow identification and lineage labeling of pharyngeal arch ectoderm and endoderm, and tooth and hair placodes
Authors: Ankamreddy Harinarayana , Thawani Ankita , Birol Onur , Zhang Hongyuan , Groves Andrew K. 
Published: August 2023

AbstractBackgroundFOXI3 is a forkhead family transcription factor that is expressed in the progenitors of craniofacial placodes, epidermal placodes, and the ectoderm and endoderm of the pharyngeal arch region. Loss of Foxi3 in mice and pathogenic Foxi3 variants in dogs and humans cause a variety of craniofacial defects including absence of the inner ear, severe truncations of the jaw, loss or reduction in external and middle ear structures, and defects in teeth and hair.ResultsTo allow for the identification, isolation, and lineage tracing of Foxi3‐expressing cells in developing mice, we targeted the Foxi3 locus to create Foxi3GFP and Foxi3CreER mice. We show that Foxi3GFP mice faithfully recapitulate the expression pattern of Foxi3 mRNA at all ages examined, and Foxi3CreER mice can trace the derivatives of pharyngeal arch ectoderm and endoderm, the pharyngeal pouches and clefts that separate each arch, and the derivatives of hair and tooth placodes.ConclusionsFoxi3GFP and Foxi3CreER mice are new tools that will be of use in identifying and manipulating pharyngeal arch ectoderm and endoderm and hair and tooth placodes.
Risk‐targeted seismic evaluation of functional recovery performance in buildings
Authors: Blowes Kristen , Kourehpaz Pouria , Molina Hutt Carlos 
Published: August 2023

AbstractPast earthquakes have highlighted the impact of prolonged downtime on community recovery. The introduction of performance objectives expressed in terms of recovery time has been identified as a key goal for the next generation of building codes. Recent development of downtime estimation frameworks now allows for the discussion of how to use recovery time estimates to (1) establish recovery‐targeted performance and (2) assess the functional recovery performance of buildings designed with modern code provisions. In this paper, we employ methods adapted from life‐safety provisions to evaluate building functional recovery performance using downtime simulation outputs. A scenario‐based, an intensity‐based and a risk‐targeted analysis of functional recovery performance objectives are presented. The functional recovery performance of a series of modern residential reinforced concrete shear wall archetype buildings, ranging from eight to 24 stories in height, at a site in downtown Seattle, Washington, are then assessed. Results of the scenario‐based assessment of an M9 Cascadia Subduction zone earthquake, comparable to an intensity‐based assessment at the 975‐year intensity level, show that the probability of achieving functional recovery within four months is close to zero, while the likelihood of achieving functional recovery by one year is approximately 60%. The results of the risk‐targeted assessment of the archetype buildings show a 50% probability in 50 years of the building downtime to functional recovery exceeding one month, a 43% in 50‐year probability of the downtime exceeding four months and an 8% in 50‐year probability of downtime exceeding one year. Finally, the expected annual downtime is approximately three days for all building heights considered. Disaggregation was used to identify intensity levels that contribute most of the downtime risk. The risk of downtime exceeding one month to one year is dominated by frequent, low‐intensity earthquakes (e.g., 100‐year return period). The risk of exceeding longer recovery times is dominated by less frequent, higher intensity earthquakes (i.e., return periods greater than 975 years). While the results of the analysis are sensitive to assumed damage thresholds and impeding factor delays triggered at low intensity levels, the findings suggest that reinforced concrete shear wall buildings designed following current building codes have a high risk of lengthy downtimes. Ultimately, the proposed methods and results illustrate the importance of introducing recovery‐based provisions into the next generation of building codes.
Honey badger optimized energy management in grid connected solar PV battery for enhancing the stability and power quality
Authors: Bishla Sandeep , Khosla Anita 
Published: August 2023

AbstractNowadays, grid‐tied solar photovoltaic (SPV) and electric vehicles (EV) are escalating owing to the large penetration of EVs into the transportation sector. In addition, the battery energy storage system benefits the EV application by ensuring power under varying supplies. In this proposed work, the honey badger optimization algorithm (HBOA) is used for energy management in battery‐connected solar PV. The battery scheduling is done by controlling the DC link voltage using HBOA. The HBOA has better exploration and exploitation behavior; thus, it could not be trapped in the local optima, and the deviation in voltage can be reduced. In the grid‐integrated PV system, DC into AC conversion should concern power quality (PQ) and switching frequencies. The static synchronous compensator (STATCOM) is connected at the grid side to address this issue. The STATCOM provides rapid regulation of dynamic powers to minimize the harmonics and voltage unbalances. This work proposes the fuzzy fractional order proportional integral derivative (F2OPID) to enhance voltage regulation and reactive power (RP) compensation. The proposed work is implemented on the MATLAB/Simulink tool, and the results are evaluated using existing methods. The results indicate that the proposed method improves the PQ with a lower total harmonic distortion (THD) of 0.76% for voltage and 0.79% for current, respectively.
Flow batteries for net zero in New Zealand
Authors: Boretti Alberto 
Published: August 2023

AbstractFlow batteries (FBs) are characterized by relatively high round trip efficiencies and benefit from high scalability. The storable energy and the power of charging and discharging the battery can be increased by increasing the size of the electrolyte storage tanks and the electrodes. Charge and discharge cycles covering many hours may be designed with flow batteries. This makes flow batteries a better choice than lithium‐ion batteries for large‐scale energy storage systems, particularly for non‐dispatchable renewable energy systems such as wind and solar, where the energy generated is highly variable and requires effective energy storage solutions. However, flow batteries also have some disadvantages, including a higher cost per unit of energy stored compared with other batteries, as well as the use of materials that in some cases are toxic, expensive, or scarce. Additionally, flow batteries cannot solve the energy storage issues over long times of a grid only supplied by non‐dispatchable electricity such as wind or solar, namely intermittency and summer to winter variability of solar, or low wind days of wind. Despite these limitations, the potential benefits of flow batteries in terms of their scalability and long cycle life, and cost‐effectiveness in case their design could be improved, making them one of the key contributors progressing towards net zero. Specifically in New Zealand, in the progress toward net‐zero the total energy supply (TES) cannot be covered by only expanding wind energy production and pumped hydro energy storage (PHES). Solar photovoltaic and likely nuclear energy supply will have to be introduced. Not all of the TES will be electrified, part of the TES will need coverage by green hydrogen fuel. Hydrogen energy storage (HES) will have to grow much more than PHES, energy storage by FBs as well as lithium‐ion batteries (LIBs) will also have to be included, given their complementarity to the other energy storage systems.
Accuracy of self‐reported private health insurance coverage
Authors: Nguyen Ha Trong , Le Huong Thu , Connelly Luke , Mitrou Francis 
Published: August 2023

AbstractStudies on health insurance coverage often rely on measures self‐reported by respondents, but the accuracy of such measures has not been thoroughly validated. This paper is the first to use linked Australian National Health Survey and administrative population tax data to explore the accuracy of self‐reported private health insurance (PHI) coverage in survey data. We find that 11.86% of individuals misreport their PHI coverage status, with 11.57% of true PHI holders reporting that they are uninsured and 12.37% of true non‐insured persons self‐identifying as insured. Our results show reporting errors are systematically correlated with individual and household characteristics. Our evidence on the determinants of errors is supportive of common reasons for misreporting. We directly investigate biases in the determinants of PHI enrollment using survey data. We find that, as compared to administrative data, survey data depict a quantitatively different picture of PHI enrollment determinants, especially those capturing age, gender, language proficiency, labor force status, disability status, number of children in the household, or household income. We also show that PHI coverage misreporting is subsequently associated with misreporting of reasons for purchasing PHI, type of cover and length of cover.
Reasons for merging and collaborating in healthcare: Marriage or living apart together?
Authors: van der Schors Wouter , Roos Anne‐Fleur , Kemp Ron , Varkevisser Marco 
Published: August 2023

AbstractBackgroundAcross OECD countries, integration between healthcare organisations has become an indispensable part of contemporary healthcare provision. In recent years, inter‐organisational collaboration has increasingly been encouraged in health and competition policy at the expense of mergers. Yet, understanding of whether healthcare organisations make an active choice between merging and collaborating is lacking. Hence, this study systematically examines (i) healthcare executives' motives for integration, (ii) their potential trade‐offs between collaborating or merging, and (iii) the barriers to collaborating perceived by them.MethodsEarly 2019, an online questionnaire was conducted among a nationwide panel of 714 healthcare executives in the Netherlands. Because of their strategic position within healthcare organisations as end‐responsible managers, healthcare executives are especially suited to provide broad and in‐depth knowledge on the internal and external processes and decisions. Three hundred thirty‐seven Dutch healthcare executives completed the questionnaire (response rate 47%). This study sample was representative of the largest healthcare sectors in the Netherlands. In total, 137 mergers and 235 inter‐organisational collaborations were reported. Both closed questions and open‐ended questions were systematically analysed.ResultsImproving or broadening healthcare provision is the foremost motive for mergers as well as inter‐organisational collaborations. When considering both types, reducing governance complexity is one of the decisive reasons to opt for a merger, whereas aversion towards a full merger and lack of support base within the own organisation convinced healthcare executives to choose for a collaboration. When comparing specific healthcare sectors, the overlap in pursued motives and sub‐motives indicates that inter‐organisational collaborations and mergers are used for comparable objectives. Only a small minority of the responding executives switched between both types of integration. Institutional barriers, such as laws, regulations and financing regimes, appear to be the most restricting for healthcare executives to engage in inter‐organisational collaborations.ConclusionsOur integral approach and systematic comparison across sectors could serve policymakers, regulators and healthcare providers in aligning organisational objectives and societal objectives in decision‐making on collaborations and mergers. Future research is recommended to study multiple collaboration and merger cases qualitatively for a detailed examination of decision‐making by healthcare executives, and develop an integral assessment framework for balancing collaborations and mergers based on their effects in the medium to long term.
Routes and methods of neural stem cells injection in cerebral ischemia
Authors: Yang Xing‐Yu , Zhang Xiao , Cao Jun‐Feng , Wu Mei , Chen Sheng‐Yan , Chen Li 
Published: August 2023

AbstractCerebral ischemia is a serious cerebrovascular disease with the characteristics of high morbidity, disability, and mortality. Currently, stem cell therapy has been extensively applied to a wide range of diseases, including neurological disorders, autoimmune deficits, and other diseases. Transplantation therapy with neural stem cells (NSCs) is a very promising treatment method, which not only has anti‐inflammatory, antiapoptotic, promoting angiogenesis, and neurogenesis effects, but also can improve some side effects related to thrombolytic therapy. NSCs treatment could exert protective effects in alleviating cerebral ischemia‐induced brain damage and neurological dysfunctions. However, the different injection routes and doses of NSCs determine diverse therapeutic efficacy. This review mainly summarizes the various injection methods and injection effects of NSCs in cerebral ischemia, as well as proposes the existing problems and prospects of NSCs transplantation.