bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Renewable Light‐Promoted Flexible Li‐CO2 Battery with Ultrahigh Energy Efficiency of 97.9%
Authors: Wang Xiao‐Xue , Guan De‐Hui , Li Fei , Li Ma‐Lin , Zheng Li‐Jun , Xu Ji‐Jing 
Published: June 2021

AbstractDirectly converting and storing abundant solar energy in next‐generation energy storage devices is of central importance to build a sustainable society. Herein, a new prototype of a light‐promoted rechargeable and flexible Li‐CO2 battery with a TiO2/carbon cloth (CC) cathode is reported for the direct utilization of solar energy to promote the kinetics of the carbon dioxide reduction reaction and carbon dioxide evolution reaction (CO2ER). Under illumination, photoelectrons are generated in the conduction band of TiO2/CC, followed by the enhancing diffusion of electrons and lithium ions during the discharge process. The photoelectrons on the cathode surface can regulate the morphology of the discharge product Li2CO3, contributing to boosting the kinetics of the subsequent CO2ER process. In the reverse charge process, photogenerated holes can favor the decomposition of Li2CO3, leading to a negative charge potential of 2.88 V without increased polarization over ≈60 h of cycling. Owing to an ultralow overpotential of 0.06 V between the discharge and charge process, an ultrahigh energy efficiency of 97.9% is attained under illumination. The introduction of a light‐promoted flexible Li‐CO2 battery can pave the way toward developing the use of solar energy to address the charging overpotential of conventional Li‐CO2 batteries.
In Situ Observation of Low‐Power Nano‐Synaptic Response in Graphene Oxide Using Conductive Atomic Force Microscopy
Authors: Hui Fei , Liu Peisong , Hodge Stephen A. , Carey Tian , Wen Chao , Torrisi Felice , Galhena D. Thanuja L. , Tomarchio Flavia , Lin Yue , Moreno Enrique , Roldan Juan B. , Koren Elad , Ferrari Andrea C. , Lanza Mario 
Published: June 2021

AbstractMultiple studies have reported the observation of electro‐synaptic response in different metal/insulator/metal devices. However, most of them analyzed large (>1 µm2) devices that do not meet the integration density required by industry (1010 devices/mm2). Some studies emploied a scanning tunneling microscope (STM) to explore nano‐synaptic response in different materials, but in this setup there is a nanogap between the insulator and one of the metallic electrodes (i.e., the STM tip), not present in real devices. Here, it is demonstrated how to use conductive atomic force microscopy to explore the presence and quality of nano‐synaptic response in confined areas <50 nm2. Graphene oxide (GO) is selected due to its easy fabrication. Metal/GO/metal nano‐synapses exhibit potentiation and paired pulse facilitation with low write current levels <1 µA (i.e., power consumption ≈3 µW), controllable excitatory post‐synaptic currents, and long‐term potentiation and depression. The results provide a new method to explore nano‐synaptic plasticity at the nanoscale, and point to GO as an important candidate for the fabrication of ultrasmall (<50 nm2) electronic synapses fulfilling the integration density requirements of neuromorphic systems.
A Single Magnetic Particle with Nearly Unlimited Encoding Options
Authors: Müssig Stephan , Reichstein Jakob , Prieschl Johannes , Wintzheimer Susanne , Mandel Karl 
Published: June 2021

AbstractCommunicating objects are demanded for product security and the concepts of a circular economy or the Internet of Nano Things. Smart additives in the form of particles can be the key to equip objects with the desired materials intelligence as their miniaturized size improves applicability and security. Beyond their proposed identification by optical signals, magnetic signals deriving from magnetic particles can hypothetically be used for identification but are to date only resolved roughly. Herein, a magnetic particle‐based toolbox is reported, that provides more than 77 billion (77 × 109) different magnetic codes, adjustable in one single particle, that can be read out unambiguously, easily, and quickly. The key towards achieving the vast code variety is a hierarchical supraparticle design that is inspired by music: similarly to how the line‐up variation of a musical ensemble yields distinguishable overtones, the variation of the supraparticle composition alters their magnetic overtones. By minimizing magnetic interactions, customizable signals are spectrally decoded by the simple method of magnetic particle spectroscopy. A large number of chemically adjustable magnetic codes and the possibility of their remote, contactless detection from within materials is a breakthrough for unexploited labeling applications and pave the way towards materials intelligence.
Periphery Modification of Tetrathiafulvalenes: Recent Development and Applications
Authors: Yoshimura Aya , Misaki Yohji 
Published: June 2021

AbstractTetrathiafulvalene (TTF) and its analogs are fascinating molecules in materials science based on their excellent electron‐donating abilities. This personal account describes recent advances in the synthesis of TTF analogs for functional materials via the palladium‐catalyzed modification of peripheries of TTF analogs. We first consider three types of molecules: fluorophore‐TTF hybrid molecules, multi‐redox systems, and an organic ligand for metal‐organic frameworks. These molecules were successfully synthesized via Stille coupling or palladium‐catalyzed direct C−H arylation and their structural, electrochemical, and optical properties were clarified. Subsequently, phosphorus‐substituted TTF analogs were successfully synthesized for future applications of redox‐active phosphine ligands for metal catalysts. The development of these molecules can significantly affect the advancement of chemical science.
Artificial intelligence and the fifth phase of political risk management: An application to regulatory expropriation
Authors: Hemphill Thomas A. , Kelley Keith J. 
Published: June 2021

AbstractUsing the context of regulatory expropriation, this article extends political risk management theories, forecasting methodologies (employing artificial intelligence, machine learning, and data analytics), and human intelligence evaluation tools useful for multinational enterprise executives in their planning and decision‐making responsibilities. The article identifies three key areas where artificial intelligence will specifically assist managers in analyzing and mitigating risks: (a) earlier identification of risks, (b) precision in risk assessment, and (c) identification of unknown unknown risk correlations. These three categories also represent how artificial intelligence and its application to political risk assessment will evolve in the fifth phase of political risk management, and why it is of particular relevance to risks such as regulatory expropriation. Using the example of an oil exploration joint venture between Russian TNK and BP, and reflecting political and public policy indicators of regulatory expropriation, this political risk management framework and its hypothetical development are illustrated.
Perceived export performance: The invisible part of the iceberg
Authors: Sadeghi Arash , Chetty Sylvie , Rose Elizabeth L. 
Published: June 2021

AbstractThis study offers a more fine‐grained view of perceived export performance (EP) and map out the key aspects of this phenomenon from the perspective of SME managers. Particularly, we explore the differences in managers' practices and their perceptions about underlying aspects of EP, including level of analysis, type of performance, mode of assessment, criteria, time frames, and frames of references. Furthermore, we explore some of the key reasons for variations in EP assessment practices. This study adopts an inductive approach based on semistructured interviews with 20 exporting SMEs in New Zealand. We observed that firms exhibit distinctive behavior in their EP assessment depending on their type of ownership, stage of internationalization, and perceived psychic distance toward target markets. We challenge the assumption that a single, universal EP evaluation model can be used for SMEs and suggest that the appropriate conceptualization of EP should be dictated by each firm's strategic orientation.
WebMO: Web‐based computational chemistry calculations in education and research
Authors: Polik William F. , Schmidt J. R. 
Published: June 2021

AbstractWebMO is a web‐based interface for all major quantum chemistry programs. WebMO uses a server–client architecture that installs on a single server or cluster computer and provides access to state‐of‐the‐art computational chemistry programs from a standard web browser. The web interface provides a 3‐D molecular editor, pre‐defined calculations types, job submission and monitoring, visualization of results, and user management tools. Barriers to using state‐of‐the‐art computational chemistry in teaching and research are minimized through WebMO's universal accessibility, its intuitive and uniform interface to all programs, no software to install on client computers, and support for multiple users with a single instance. Applications of WebMO throughout the undergraduate curriculum are provided. The extensible open‐architecture design allows for collaboration among educators, researchers, quantum chemistry program developers, and the WebMO interface developers.This article is categorized under:
Computer and Information Science > Visualization
Electronic Structure Theory > Ab Initio Electronic Structure Methods
Software > Quantum Chemistry
Sweden's coronavirus strategy: The Public Health Agency and the sites of controversy
Authors: Pashakhanlou Arash Heydarian 
Published: June 2021

AbstractIn contrast to the vast majority of Western countries, Sweden left large segments of the society open instead of imposing a lockdown to combat the spread of the coronavirus. As a result, the Swedish COVID‐19 measures, largely devised by its expert agency on health, garnered widespread international attention. Despite the global interest in the corona strategy of the Public Health Agency of Sweden (PHAS), there are currently no systematic studies on their COVID‐19 policy. The present investigation focuses on the controversies that have characterized PHAS' work with reference to risk assessments, facemasks, voluntarism, testing, and the protection of the elderly during the pandemic. Overall, this inquiry demonstrates that PHAS' risk assessments were initially overly optimistic and their facemask recommendations in conflict with large segments of the scientific community for an extensive period. Yet, their voluntary measures worked moderately well. In their testing, PHAS did not manage to deliver on their promises in time, whereas several measures implemented to protect the elderly were deemed inadequate and late.
Oxidation of Sulphur Dioxide using Micro‐ and Nanoparticles of various Iron Oxides
Authors: Reichelt Lydia , Hippmann Sebastian , Brichkin Vyacheslav Nikolayevich , Bertau Martin 
Published: June 2021

AbstractSulphuric acid is the chemical with highest production rates in the world. At present, it is mainly synthesized using vanadium pentoxide as catalyst, which determines the applied production process particularly in terms of gas pre‐treatment and heat management. For processes, which cannot be run with vanadium pentoxide, alternative catalysts are required to make different SO2 qualities accessible to sulphuric acid production. Ferric oxides are a very promising alternative, since they combine higher thermal with improved chemical stability. Within this study, various ferric oxides were examined with regard to conversion rates and structural changes during application. Effects of crystal structure, particle size as well as thermal treatment and the influence of precipitation conditions were studied. Although conversion rates are very promising, it has become apparent, though, that these materials cannot compete with vanadium pentoxide in terms of conversion rate as well as long‐time stability, yet. Nevertheless, from the results of this study, it is clear that high potential lies in focused catalyst optimisation.
Water-Specific Imaging
Authors: Nakanishi Tomoko M. 
Published: June 2021

AbstractOur first target was water, namely, how to obtain a water-specific image nondestructively. Using a neutron beam, we could visualize water-specific images of plants, including roots and flowers, which were never shown before. Each image suggested the plant-specific activity related to water.We briefly present how to acquire the image and what kind of water image is taken by neutron beam irradiation. We present a variety of plant samples, such as flowers, seeds, and wood disks. It was noted that neutrons could visualize the roots imbedded in soil without uprooting. When a spatial image of the root imbedded in soil was created from many projection images, the water profile around the root was analyzed. Then, fundamental questions were raised, such as whether plants are absorbing water solution or water vapor from the soil, because there was always a space adjacent to the root surface and hardly any water solution was visualized there. The roots are in constant motion during growth, known as circumnutation, and it is natural that the root tip is always pushing the soil aside to produce space for the root to grow. If the roots are absorbing water vapor, then the next question is about metals. Are the roots absorbing metal vapor? Since we tended to employ water culture to study the physiological activity of plants, the physiological study of the plants growing in soil was somewhat neglected. Later, when we could develop a system to visualize the movement of element absorption in a plant, there was a clear difference in element absorption between water culture and soil culture.
Element-Specific Distribution in a Plant
Authors: Nakanishi Tomoko M. 
Published: June 2021

AbstractFor the first stage of the study of the elements, the distribution of the element within the plant tissue was presented employing neutron activation analysis (NAA). Since NAA allows nondestructive analysis of the elements in the sample, this is the only method to measure the absolute amount of elements in the sample.The results showed that the element-specific profile varied throughout the whole plant, and this distribution tendency remained similar throughout development. There were many junctions of element-specific concentrations between the tissues, suggesting barriers to the movement of the elements. Generally, heavy elements tended to accumulate in roots, except for Mn and Cr. Of the elements measured, Ca and Mg showed changes in concentration with the circadian rhythm. Since the amount of the element in a plant reflects the features of the soil where the plant grows, multielement analysis of the plant could specify the site of the agricultural products produced.Before addressing the development of a real-time RI imaging system (RRIS), the production of RIs for essential elements for plant nutrition, 28Mg and 42K, is presented. The reason why concentrating on RIs is because when we examine the history of plant research, physiological research on the elements without available radioisotopes has not been well developed. For example, the boron (B) transporter was recently found and the study of B in plants is far behind compared to the other elements.Therefore, we developed a preparation method for elements whose available RIs were not previously employed in plant research, 28Mg and 42K. They are the radioisotopes we prepared and a root absorption study using 28Mg as a tracer is presented as an example. It was found that the orientation of Mg transfer was different according to the site of the root where Mg was absorbed. The specific role of Mg has not yet been clarified by florescent imaging because the overwhelming amount of Ca makes it difficult to distinguish Mg and Ca.
Muon g − 2 anomaly in anomaly mediation
Authors: Yin Wen 
Published: June 2021

Abstract
The long-standing muon g − 2 anomaly has been confirmed recently at the Fermilab. The combined discrepancy from Fermilab and Brookhaven results shows a difference from the theory at a significance of 4.2 σ. In addition, the LHC has updated the lower mass bound of a pure wino. In this letter, we study to what extent the g − 2 can be explained in anomaly mediation scenarios, where the pure wino is the dominant dark matter component. To this end, we derive some model-independent constraints on the particle spectra and g − 2. We find that the g − 2 explanation at the 1σ level is driven into a corner if the higgsino threshold correction is suppressed. On the contrary, if the threshold correction is sizable, the g − 2 can be explained. In the whole viable parameter region, the gluino mass is at most 2 − 4 TeV, the bino mass is at most 2 TeV, and the wino dark matter mass is at most 1 − 2 TeV. If the muon g − 2 anomaly is explained in the anomaly mediation scenarios, colliders and indirect search for the dark matter may find further pieces of evidence in the near future. Possible UV models for the large threshold corrections are discussed.
Meniscectomy is still a frequent orthopedic procedure: a pending need for education on the meniscus treatment possibilities
Authors: Bąkowski Paweł , Bąkowska-Żywicka Kamilla , Ciemniewska-Gorzela Kinga , Piontek Tomasz 
Published: June 2021

Abstract
Purpose
The purpose of this study was to evaluate the current status of education of polish surgeons in the subject of meniscus repair possibilities. The analysis of the possible correlations between the number of knee arthroscopy procedures performed by polish surgeons and their decision whether to remove or to repair the damaged meniscus has been performed.

Methods
Two-hundred and five registered orthopedic surgeons took part in surveys. The questionnaire contained the description of 20 patients with different types of meniscus damage and three questions concerning the experience in knee arthroscopy (two questions) and a choice of the treatment method (one question). Comparisons were made between knee arthroscopy experts (> 100 arthroscopies performed per year) and non-experts (≤ 100 cases).

Results
The questionnaire was completed by 194 knee surgeons from Poland with different levels in knee arthroscopy experience. For most cases, experts and non-experts agreed on the meniscus treatment method. Statistically significant differences in the recommended treatment between experts and non-experts were observed in 4 cases, where experts decided to repair the damage rather than to perform the meniscectomy.

Conclusions
Meniscectomy remains a frequent orthopedic procedure, despite meniscal sparing having been advocated for several decades now and despite the existence of meniscus repair technique which gives good clinical outcomes—augmentation of the damaged meniscus with a collagen membrane. Polish surgeons still need education on the meniscus treatment possibilities.

Level of evidence
V.
The Bone Cartilage Interface and Osteoarthritis
Authors: Boyde Alan 
Published: June 2021

AbstractThis review describes results obtained with tissue from prior studies of equine and human osteoarthritis (OA). The main methods considered are scanning electron microscopy, novel methods in light microscopy and X-ray Micro-tomography. The same samples have been re-utilised in several ways. The tissues described are hyaline articular cartilage (HAC; or substitutes), with its deep layer, articular calcified cartilage (ACC), whose deep surface is resorbed in cutting cone events to allow the deposition of subchondral bone (SCB). Multiple tidemarks are normal. Turnover at the osteochondral (ACC-HAC-SCB) junction is downregulated by overload exercise, conversely, during rest periods. Consequent lack of support predisposes to microfracture of the ACC-SCB plate, in the resorption-related repair phase of which the plate is further undermined to form sink holes. The following characteristics contribute to the OA scenario: penetrating resorption canals and local loss of ACC; cracking of ACC and SCB; sealing of cracks with High-Density Mineral Infill (HDMI); extrusion of HDMI into HAC to form High-Density Mineral Protrusions (HDMP) in HAC which may fragment and contribute to its destruction; SCB marrow space infilling and densification with (at first) woven bone; disruption, fibrillation and loss of HAC; eburnation; repair with abnormal tissues including fibrocartilage and woven bone; attachment of Sharpey fibres to SCB trabeculae and adipocyte-moulded extensions to trabeculae (excrescences).
Quality of life in atopic dermatitis in Asian countries: a systematic review
Authors: Huang Jinghui , Choo Yue Jia , Smith Helen Elizabeth , Apfelbacher Christian 
Published: June 2021

AbstractAtopic dermatitis (AD) is a common chronic inflammatory skin condition which impacts psychological wellbeing and social relationships. There have been studies of AD’s impact on quality of life (QoL) in Western countries, but these findings cannot be directly extrapolated to Asian populations with genetic, environmental and cultural differences. Therefore, we aimed to systematically review the literature pertaining to QoL impairment in AD in East and Southeast Asia to characterize the impact of AD on patients and their families, and to identify the factors affecting the degree of QoL impairment. A search of English language papers was conducted on MEDLINE, EMBASE, PSYCInfo, Global Health and Web of Science. Observational studies measuring QoL using single or multi-item instruments in people with self-reported or physician diagnosed atopic dermatitis were included. 27 studies from 29 articles were included and synthesized. There is data documenting QoL impairment in AD sufferers and their families, across a wide range of Asian countries, healthcare settings and ages. Aspects of QoL impacted to a greater extent included symptoms of itch, feelings of embarrassment, and sleep disturbance. Severity of disease affects the degree of impairment of QoL, but there is no apparent link between QoL impairment and patient demographic factors, or other medical factors such as age at diagnosis or duration of illness. Our findings also highlighted the need for clinicians to actively explore the impact of patient’s symptoms, especially in an Asian context where healthcare communications are traditionally doctor-centric.