bluuebunny/crossref_metadata_2025 huggingface dataset:
Éthique et pratiques d’accompagnement en développement des communautés : regards sur l’expertise québécoise
Authors: Bourque Denis , Mercier Clément
Published: February 2025

L’article s’appuie sur des résultats et analyses produits dans le cadre d’une recherche portant sur les dimensions de l’engagement et de la posture générale présentes dans l’expertise québécoise en matière d’intervention collective en soutien à l’action collective, réalisée à partir de récits biographiques de pratique. Il évoque des traits d’un idéal-type qui met en relief les dimensions praxéologiques et éthiques structurantes de cette expertise peu codifiée, non définie et encadrée comme profession, faisant appel à une grande diversité de formations et d’expériences, et réalisée dans une grande variété de milieux de vie, d’organisations et de domaines d’intervention. Il s’agirait d’une pratique marquée par une posture identitaire et éthique déployée dans un agir professionnel intégré « d’expert de processus » permettant de concilier les acquis personnels, les valeurs, les savoirs et les exigences des programmes et des employeurs et employeuses avec les besoins, les savoirs et les vécus des communautés et des acteurs collectifs accompagnés. Cette posture s’actualise à travers le développement d’un « style personnel » d’intervention amenant à exercer les fonctions avec une nette identité professionnelle personnalisée et affirmée, qui pourrait même avoir pu contribuer à influencer l’identité de l’organisation employeur, sinon parfois à la déterminer, sans qu’on y adhère comme à un ensemble normatif et prescriptif, comme des modèles « prêts à porter ». Cet agir professionnel commande un engagement dans un rapport intersubjectif qui devient l’infrastructure de la relation professionnelle.
Let’s Hear from Service Providers: Technology and the COVID-19 Pandemic
Authors: Gateri Hellen , Salami Bukola , Khalema Emily , Dhungel Rita
Published: February 2025

The use of digital technology during the COVID-19 pandemic advanced service delivery from in-person to virtual. This qualitative study, conducted with 20 service providers in settlement and social service agencies supporting immigrant communities in Edmonton, Alberta, uncovered significant findings. The study revealed that technology disparities markedly affected the access and delivery of services for both service providers and users. The implications of these findings underscore the urgent and pressing need for advocacy at all levels of government to ensure that all Canadians, especially the marginalized, have equitable access to affordable internet services, technology devices, and digital literacy training.
Do Macroeconomic Factors Significantly Affect Economic Growth? Evidence from Ghana
Authors: Yeboah Evans , Bamwesigye Dastan
Published: February 2025

Macroeconomics examines the whole economy using some indicators like investment, exchange rate, unemployment rate, and trade. These indicators contribute to economic growth either positively or negatively. After Ghana's economic reforms in 1984, its economy underwent a series of transformations which have impacted the economy in one way or the other. The study investigated some selected macroeconomic variables (external debt, FDI, inflation, exchange rate, and trade openness) that impact Ghana's economic growth. The study analyzed time series data from the World Bank (1991 to 2021) using econometrics methods; the Johansen cointegration, Ordinary least squares (OLS), and the distributed lagged model. The cointegration result showed that there is a long-run relationship between the variables. The outcome of the OLS indicated that external debt, FDI, and trade openness had a positive impact, whereas inflation and unemployment rates had a negative effect using GDP as a proxy for economic growth. The outcome also showed that real exchange has no significant effect on the economy of Ghana. On the contrary, the findings from a distributed lagged model provided evidence that inflation, external debt, and FDI impact spreads over some period. We recommend that the government of Ghana invests the external loans into sectors capable of increasing the growth of the economy and providing investment incentives to attract more investors.
ADVERTISING MINORITY REPORT: THE (IN)VISIBILITY OF MINORITIES AND SENSITIVE GROUPS IN ADVERTISING
Authors: Ocokoljić Marija
Published: February 2025

The research focuses on the visibility of minorities and sensitive groups in television advertising in Serbia. Ethnic, sexual minorities, disabled, the elderly and people with large body types were chosen as groups which do not fit the usual representation template in commercial communication. Content analysis of television ads aired in 2023 showed very low visibilities amongst them, while some being practically invisible. Some of these groups carry certain risks in terms of communication backlash and controversy (ethnic, sexual minorities) which could to a certain point explain their exclusion from ads. On the other hand, the invisibility of others, carrying no controversies at all (disabled) only show the fact that they are not seen, as members of society or as consumers. Their societal invisibility drives their media invisibility which makes a kind of perpetuum mobile or a circle that needs to be broken in order to start creating a more inclusive and integrated local community.
ТЕСТИРАЊЕ ТЕОРИЈЕ АРЕНДА ЛИЈПХАРТА У ПРАВНОМ И ПОЛИТИЧКОМ СИСТЕМУ ЕВРОПСКЕ УНИЈЕ
Authors: Trlin Davor
Published: February 2025

У овом раду аутор анализира уставни и политички систем Европске уније, као облик интеграције држава са примијењеним демократским политичким режимом. Први циљ рада је да се објасни каква је правна природа Европске уније (да ли је то међународна организација, федерација или конфедерација...) и који се модел демократије примјењује у Европској унији. У овом раду означићу Европску унију као конфедерацију и дати аргументе за тај став. Такође, тестираћу мишљење Аренда Лијпхарта да је Европска унија примијенила консоцијацијску демократију. Упоредићу своје налазе са другим прогресивним облицима федерализма у свијету (Сједињене америчке државе, Њемачка, Аустрија и Швајцарска). Други циљ рада је анализирати како се демократија и федерализам преклапају и надопуњују и који су разлози да се држава/форме удруживања држава прихвате једног облика. Принципи консоцијације и федерализма се понекад мијешају, тако да примјена механизма консоцијацијске демократије доноси став да једна држава није федерација (па самим тим ни држава), већ облик удруживања држава. У раду се нуди компрехензивна интерпретација Европске уније као нове форме консоцијације (коју можемо звати међудржавном консоцијацијом), различитом од класичних федералних и унитарних консоцијација.
LEGAL-MARKETING ASPECTS OF BUSINESS OPERATIONS OF BANKS IN BOSNIA AND HERZEGOVINA
Authors: Vojinović Nikolina
Published: February 2025

In recent years, the banking sector of Bosnia and Herzegovina has been acting intensively with marketing activities towards all users of financial services in Bosnia and Herzegovina. In the constant competitive struggle for the largest possible participation in the financial market, banks ignore or disrespect main business, legal, ethical and marketing principles and norms for relationships with users of their services. Although all citizens are directly or indirectly clients of the banking sector, there is an oversaturation of the market, which often leads to an inadequate relationship between providers and users of financial services. Declared bank offers lead citizens to reckless and inappropriate borrowing in relation to their economic possibilities, and on the other hand, the banking sector also suffers the consequences of excessive client borrowing. There are legal solutions that regulate the work of banks, but they are not involved in a timely manner and are not even applied to a sufficient extent in order to protect the users of services on the financial market of Bosnia and Herzegovina. The aim of the paper is to point out the main legal and marketing aspects of banks’ business operations, i.e. misconceptions and problems that citizens, primarily loan users, are exposed to, because there is an insurmountable gap between the conditions offered and their practical application. There is a violation of the fundamental rights of users of financial services, which is based on the monopolistic behavior of banks and unprincipled application and enforcement of legal regulations by regulatory authorities.
ВАНДА БОЖИЋ, ДРАГАН ТАНЧИЋ: КРИВИЧНОПРАВНИ И ПОЛИТИКОЛОШКИ АСПЕКТИ ЗАШТИТЕ ТАЈНИХ ПОДАТАКА И ДОКУМЕНАТА, ИНСТИТУТ ЗА СРПСКУ КУЛТУРУ, ПРИШТИНА - ЛЕПОСАВИЋ, СА ПРИВРЕМЕНИМ СЈЕДИШТЕМ У ЛЕПОСАВИЋУ, 2022., СТР. 229.
Authors: Симовић Марина М.
Published: February 2025

У издању научног Института за српску културу Приштина - Лепосавић, са привременим сједиштем у Лепосавићу, недавно је објављена научна монографија „Кривичноправни и политиколошки аспекти заштите тајних података и докумената“, др Ванде Божић и Драгана Танчића. Монографија је настала у оквиру научноистраживачког рада по Уговору склопљеном са Министарством просвјете, науке и технолошког развоја Републике Србије. Монографија се састоји од шест средишњих тематских поглавља, те литературе и индекса појмова и имена. Има 229 страна, 295 фуснота, а од литературе је наведено 138 научних радова и 26 одредница из законске регулативе. Садржи и индекс појмова и имена.
Berlioz the Critic
Authors: Nichols Roger
Published: February 2025

For nearly forty years, Hector Berlioz combined writing music with lively and informed music criticism. This collection of articles, engagingly translated by Roger Nichols, covers the middle years of his critical career.Berlioz's music criticism from 1837 to 1850 covers a period when he composed some of his finest works, and travelled abroad to perform them before appreciative audiences in Germany, Russia, and England. Roger Nichols has chosen and translated extracts from fifty-eight articles of particular interest, with commentary and notes identifying people mentioned. The articles are preceded by a richly informative introduction by the Berlioz scholar Peter Bloom. Additional editorial notes are provided by musicologist Julian Rushton.

In the selected articles Berlioz discusses Paris performances of early and modern music, including new operas and revivals, and concerts at the Paris Conservatoire. He comments freely but with understanding on conductors, singers and instrumentalists. The essays demonstrate the composer's concern with innovation in the design of musical instruments and assess the quality of performing venues. Berlioz writes on the musical life of London, France, and Germany, most entertainingly about the inauguration of statues of Beethoven and Rossini. The selection is framed by major articles on "Imitation in Music" and on Gluck's opera Alceste.
Edward Elgar and Adrian Boult
Authors: Simeone Nigel
Published: February 2025

Considers Boult's interpretations of Elgar's major works by drawing on their correspondence, Boult's annotated scores, broadcast performances, commercial recordings and press reviews, ranging from the composer's lifetime to Boult's final public appearances.

Edward Elgar (1857-1934) and Adrian Boult (1889-1983) first met in 1904 and they saw each other frequently over the next thirty years. This book documents how Boult's Elgar interpretations evolved and the ways in which Boult drew on his experience of Elgar's own performances as well as their personal contacts. It provides fascinating biographical context, with a particular focus on the role played by the charismatic music patron Frank Schuster. A misunderstanding led to Elgar and Boult falling out in 1924 and it was not until 1931 that Elgar sought to restore their friendship.

The book considers Boult's interpretations of Elgar's major works, drawing on a variety of sources including Boult's annotated scores as well as his broadcasts and commercial recordings of Elgar's music, ranging from those made in the composer's last years to Boult's final public appearances in 1978. The view of contemporary critics provides further evidence. All the works with which Boult was closely associated are considered in detail: the two symphonies, The Dream of Gerontius, The Kingdom and The Apostles and orchestral works including the Enigma Variations, Falstaff and the Violin and Cello Concertos. The text is complemented by appendices including a chronology of performances and a discography. These provide invaluable information for anyone interested in this fascinating composer-conductor relationship, and in Boult's advocacy of Elgar's music throughout his long career.
American Journalists in Hitler's Germany
Authors: Domeier Norman
Published: February 2025

Examines American journalists' and media companies' roles in Hitler's Germany, reigniting the debate on the relationship between political power and the media.

Despite Hitler's international use of propaganda, and despite the power of the US press, historians have neglected American journalists' activity in Nazi Germany. American media companies expanded their presence in Germany after 1933, and the Associated Press (AP) conducted business with Hitler's regime throughout the war.

Norman Domeier's study, now in English, is the first to examine critically and in detail the roles of American journalists and media companies in Hitler's Germany, showing that they knew about but kept secret the plans for rearmament, the occupation of the Rhineland, the annexation of Austria, and the invasions of Denmark, Norway, and the Soviet Union. The book documents the "companionship" between Adolf Hitler and Karl Henry von Wiegand, chief German correspondent of the Hearst press, who was the first and last American to interview him. Most important, it details the secret exchange of news photographs - discovered by Domeier in 2017 - between the AP and the Nazis from 1942 to 1945. Thousands of AP photos were used in the Nazi press, usually with anti-American or anti-Semitic spin, while the AP distributed ca. 40,000 Nazi photographs to US newspapers. Domeier's book reignites the debate on the relationship between political power and the media, opening up new perspectives on the political and cultural history of journalism beyond one-sided idealizations.
A Companion to Latin American Photography
Authors: Gardner Nathanial
Published: February 2025

How can photography enrich our knowledge of Latin America?

Photography provides unique insights into Latin America. It acts as a witness, agent, and archive - containing a wealth of knowledge about the continent, its social classes, and its multiple ethnicities. This companion introduces the reader to the role that photography plays in Latin America, offers ways in which it can be studied, and reveals how this medium can promote a deeper awareness of the region.

It reviews the history of photography in Latin America; ways in which the technology transmits distinctive information; the influence of specific photographers and their relationships with patrons, mentors, and students; the role of institutions in promoting photography; and the developing Latin American canon. The Companion to Latin American Photography also explores how the medium can shape Latin American narratives and cultural identities; assert or question power; serve as testimony and memory; and represent and empower women, children and youth, as well as marginalized groups such as the disappeared.

The study is intended not only to provide an overview of Latin American photography (including dozens of images from a vast array of photographers over the past two centuries), it also discusses innovative work taking place there. Above all, this book can be viewed as a guide to the ways in which photography can enhance and expand a viewer's knowledge of Latin America.
Convention and the Individual in Medieval English Romance
Authors: Brookes Lucy
Published: February 2025

Offers a nuanced reading of character and subjectivity in medieval romance via an exploration of its conventions.

Medieval romances can be characterised by their formulaic motifs, predictable plots, and "stock" figures and character types. This book offers a fresh perspective on these conventions, arguing that authors used them, and the expectations they generate, as a form of shorthand to interiority. Understanding romance conventions in this way reveals that romance characters' complex and often contradictory inner lives are made available precisely through the genre's narrative structures, shapes, and norms. Drawing upon recent work in the History of Emotions and Affect Theory, the author explores character and subjectivity in a variety of English romance texts from 1100 to 1500 - such as Amis and Amiloun, Le Bone Florence of Rome, The Squire of Low Degree, Sir Orfeo, Sir Gawain and the Green Knight and Malory's Le Morte Darthur. Through new readings of these texts, the book demonstrates the contribution made by romance to the growing significance of the individual in fiction after the twelfth century by paying particular attention to the ways in which convention, expectation, and genre intersect with character-formation and the representation of identity.
Textiles and Textile Imagery in Early Medieval English Literature
Authors: Clegg Hyer Maren
Published: February 2025

Identifies and analyses a wide range of textile metaphors and imagery from peace-weaving in Beowulf to word-crafting in Elene.
Textile metaphors, or metaphors involving the process and product of cloth-making, occur widely in literary traditions around the world. The same phenomenon holds true among the peoples of early medieval England. As close observers of a long and culturally significant textile tradition, pre-Conquest English writers drew upon their close familiarity with spinning and weaving to create a wide range of metaphorical textile images in both Old English and Anglo-Latin literature.

This book examines early medieval English textile imagery in close detail, situating it within its cultural and material contexts and addressing the ways in which lived experience informed these metaphors, whether inherited, invented, or both. It explores imagery linked to themes of creation, peace, death, magic, and fate in a comprehensive variety of texts, including Beowulf and Elene, Anglo-Latin letters and riddles, the Exeter Book riddles, prognostics, penitentials, hagiographic and homiletic texts, medical collections, and glosses. Overall, it demonstrates how an understanding of this important body of textile metaphors alters and shapes the ways in which we read the literature of this period.
The Influence of Social Facilitation on Test Performance
Authors: Alilaya Jeayah B. , Araneta Angelica Faith B. , Demanawa Gwyneth Niña S. , Culajara Claire Lynn B.
Published: February 2025

Aims: This study explores social facilitation's influence on first-year undergraduate students' test performances.
Place and Duration of Study: University of Mindanao Digos College, Department of Arts and Sciences, BS in Psychology Program
Methodology: The study utilized a true experimental design with between-subject approach in allocating the participants. The participants were selected through a short survey, and receiving an academic distinction award with honors upon their senior high school graduation was the primary qualification regardless of gender and age. They were randomly assigned to either solo study or group study conditions. Twenty students (17 females; 3 males) undergo the solo study condition, and another twenty students (18 females; 2 male) undergo the peer group study condition. Both groups received identical posttest and pretest questionnaires to ensure the validity of the result.
Results: Results showed no statistically significant difference in test performance between the two study methods (p <.05), as indicated by the Mann-Whitney U test. Solo study participants demonstrated a slightly higher mean improvement (M = 6.00) compared to group study participants (M = 5.50), but the effect size (i = 0.212) indicated minimal difference.
Conclusion: Both study methods are equally essential to improving college students' test performance. Results stated no statistically significant difference between the peer study group and solo study condition. However, the study's limitations include a small sample size (N = 40) and a homogeneous group of participants (first-year psychology students who excelled academically in senior high school), restricting the generalizability of the findings.​​
FEA Modeling and Verification of Structural Property of Large Sandwich Composite Antenna Structure
Authors: Jang Sungwook , So Jaeuk , Lee Myeonggyu , Bae Jongin , Ji Wooseok , Kim Hyegyu , Kim Dongyung
Published: February 2025

The composite sandwich structure applied to the subject of this study is an effectively designed structure that enhances the specific stiffness of the panel. It features CFRP face sheets, which are strong under tensile and compressive loads, on both sides of an aluminum honeycomb core, a porous structure that is weak in tension and compression but strong in bending. The subject of this study weighs over 4 tons and possesses the largest weight and size among composite antenna structures in the country. Due to the lack of many references for large composite structures, accurate material properties are obtained through specimen tests, and the finite element analysis model is experimentally validated to ensure it accurately represents the actual structure. Finally, the structural robustness is verified through the structural analysis results of the validated model.
Case Study on Improving Vibration Failure of an Aircraft Heat Exchanger Brackets
Authors: Ham Seokwoo , Lee Sangrae , Kim Jaehoon , Kim Jeongwoo
Published: February 2025

Aircraft heat exchangers are devices used to cool the lubricating oil supplied to the gearbox and drive unit by utilizing low-temperature fuel/air. The bracket failure of heat exchanger was occurred while operating in a vibration environment. In this study, the cause of bracket crack was analyzed and an improvement method was proposed. From the results of scanning electron microscope(SEM) observation of the fracture surface, it was confirmed that the crack was initiated and propagated by resonance due to excessive vibration. Finite element analysis including modal and stress analysis of the heat exchanger structure was performed, and a vibration test was performed to compare the analysis and experimental results. Based on these results, an improved bracket thickness was obtained, and the safety factor was 9 or higher as the standard for the shear fatigue strength. The safety and durability of the improved bracket were verified through a vibration test.
Prediction of COVID-19 Using a Clinical Dataset With Machine Learning Approaches
Authors: Suruliandi A. , Ame Rayan R. , Raja S. P.
Published: February 2025

COVID-19 is an infectious disease that spreads quickly from person to another. The pandemic, which spread worldwide over time, presents huge risks in terms of blood clotting, breathing problems and heart attacks, sometimes with fatal consequences if not detected early. The PCR test, CT scans, X-rays, and blood tests are methods commonly employed to detect the disease, though the PCR test is, without question, considered the gold standard. The American Center for Disease Control and Prevention (CDC) reports that the PCR has an 80% accuracy rate. An alternative to the PCR is clinical data, which is less expensive, easy to collect, and offers better accuracy. Machine learning, with its rich feature selection and classification methods, helps detect COVID-19 at the earliest stages, using clinical test results. This research proposes a clinical dataset and offers a comparative analysis of feature selection and classification algorithms for detecting COVID-19. Filter-based feature selection methods such as the ANOVA-F, chi-square, mutual information and Pearson correlation, along with wrapperbased methods such as Recursive Feature Elimination (RFE) and Sequential Forward Selection (SFS) were used to choose a subset of features from the feature set. The selected features were thereafter applied to the Support Vector Machine (SVM), Naïve Bayes, K-NN (K-Nearest Neighbor) and Logistic Regression(LR) classification algorithms to detect Coronavirus Disease. The experimental results of the comparative study show that the clinical dataset provides better accuracy at 94.8%, with mutual information and the SVM classifier.
Framing the Sky, Etching Clay: Walls of the Midwest
Authors: Erickson Kevin
Published: March 2024

The American Midwest with its own architectural histories and topologies may be termed a land of few walls. Architect Kevin Erickson examines Lebbeus Woods's relation to this landscape and the genesis of his preoccupation with walls, not as protectors of boundaries, but as sites of dialogue and collaboration. Rather than mere surfaces for large paintings, walls – new or abandoned – invite reflection on the relationship between art and architecture.
Attuned Rigour: Between Pictorial and Material Conditions
Authors: Eeckhout Riet
Published: March 2024

Lebbeus Woods's extraordinary proficiency and mastery in different media was matched by his steady and fast pace of exploration. Riet Eeckhout, a drawings researcher and drawer herself, who teaches at KU Leuven, ponders this dexterity. Her focus is on the rigour of Woods's early works produced in Mylar and pastels, and on the carefully delimited spatial vocabulary – agency obtained through the capacity of the drawing to function outside explicit representation.
Oxidized mRNA Lipid Nanoparticles for In Situ Chimeric Antigen Receptor Monocyte Engineering
Authors: Mukalel Alvin J. , Hamilton Alex G. , Billingsley Margaret M. , Li Jacqueline , Thatte Ajay S. , Han Xuexiang , Safford Hannah C. , Padilla Marshall S. , Papp Tyler , Parhiz Hamideh , Weissman Drew , Mitchell Michael J.
Published: March 2024

Chimeric antigen receptor (CAR) monocyte and macrophage therapies are promising solid tumor immunotherapies that can overcome the challenges facing conventional CAR T cell therapy. mRNA lipid nanoparticles (mRNA‐LNPs) offer a viable platform for in situ engineering of CAR monocytes with transient and tunable CAR expression to reduce off‐tumor toxicity and streamline cell manufacturing. However, identifying LNPs with monocyte tropism and intracellular delivery potency is difficult using traditional screening techniques. Here, ionizable lipid design and high‐throughput in vivo screening are utilized to identify a new class of oxidized LNPs with innate tropism and mRNA delivery to monocytes. A library of oxidized (oLNPs) and unoxidized LNPs (uLNPs) is synthesized to evaluate mRNA delivery to immune cells. oLNPs demonstrate notable differences in morphology, ionization energy, and pKa, thereby enhancing delivery to human macrophages, but not T cells. Subsequently, in vivo library screening with DNA barcodes identifies an oLNP formulation, C14‐O2, with innate tropism to monocytes. In a proof‐of‐concept study, the C14‐O2 LNP is used to engineer functional CD19‐CAR monocytes in situ for robust B cell aplasia (45%) in healthy mice. This work highlights the utility of oxidized LNPs as a promising platform for engineering CAR macrophages/monocytes for solid tumor CAR monocyte therapy.
Pressure Engineering on Perovskite Structures, Properties, and Devices
Authors: Wang Na , Zhang Shasha , Wang Shiheng , Yang Xiaodong , Guo Fengmin , Zhang Yiqiang , Gu Zhenkun , Song Yanlin
Published: March 2024

As a fundamental thermodynamic parameter, pressure serves as an effective tool to control the structures and properties of functional materials. To date, numerous pressure‐engineering methods have been introduced to enhance perovskite structures and devices. This paper comprehensively reviews the advances in understanding the effects of pressure on perovskite materials and devices, encompassing both low and high‐pressure influences. These effects are categorized into six distinct groups based on their underlying mechanisms, detailing the evolution of perovskite structures from macroscopic to microscopic levels, and exploring the interplay between these structures and their functional characteristics. Finally, the current challenges and offer insights into the future prospects for harnessing pressure effects to further develop perovskite structures, properties, and devices are assessed.
Surface Li+/Ni2+ Antisite Defects Construction for Achieving High‐Voltage Stable Single‐Crystal Ni‐Rich Cathode by Anion/Cation Co‐Doping
Authors: He Xinyou , Shen Jixue , Zhang Bao , Xiao Zhiming , Ye Long , Mao Qiuyun , Zhong Qifan , Ou Xing
Published: March 2024

Ni‐rich cathode material possesses a considerable theoretical capacity, yet achieving their full capacity potential remains challenging. Elevating its operation voltage is an effective approach, while the stability of Ni‐rich cathode material is relatively poor, which is limited by Li+/Ni2+ mixing. Herein, a strategy of cation/anion co‐doping is proposed for single‐crystal ultrahigh‐nickel cathode LiNi0.92Co0.04Mn0.04O2 operated at 4.5 V. The enhancement mechanism is explicitly revealed by in situ/ex situ tests and theory calculations. Specifically, Mo6+ and F− are introduced to construct an appropriate Li+/Ni2+ antisite defects structure at the particle surface, which can maintain the low‐defect Li+ layered channel inside the bulk simultaneously, inducing a stable access portal for Li+ transport from the cathode/electrolyte interface. More importantly, the Li+/Ni2+ antisite passivation layer on the surface can uphold the stability of Li‐layer and optimize the reactive behavior of Ni2+, thus boosting the interfacial stability and reducing the lattice mismatch. As a result, it can achieve high capacity (204 mAh g−1 at 1 C) and stable retention during long‐term high‐voltage measurements both in half‐cell (87.1% after 200 cycles) and full‐cell (91.9% after 400 cycles). This facile strategy provides a feasible technical reference for further exploiting the ultrahigh‐capacity of Ni‐rich cathode for commercial application.
Wet‐Chemical Epitaxial Growth of Metastable‐Phase Intermetallic Electrocatalysts
Authors: Han Sumei , Sun Hao , Ma Chaoqun , Yun Qinbai , He Caihong , Ma Xiao , Zhang Huaifang , Feng Fukai , Meng Xiangmin , Xia Jing , Wang An‐Liang , Cao Wenbin , Lu Qipeng
Published: March 2024

Metastable‐phase intermetallic compounds (IMCs) provide great flexibility to modify the electronic structure and surface coordination environment of metallic catalysts for various reactions. However, the synthesis of metastable‐phase IMCs with high catalytic performance remains a great challenge due to their thermodynamically unstable nature. Here, a wet‐chemical epitaxial growth strategy to synthesize metastable‐phase Pd‐Bi intermetallic nanocrystals (NCs) is reported. β‐Pd3Bi and γ‐Pd5Bi3 intermetallic NCs are epitaxially grown on the templates of face‐centered cubic Pd3Pb nanocubes and hexagonal close‐packed PtBi nanoplates, achieving Pd3Pb@Pd3Bi and PtBi@Pd5Bi3 core–shell NCs, respectively. The obtained Pd3Pb@Pd3Bi NCs possess a mass activity and specific activity of 8.52 A mg−1Pd and 11.59 mA cm−2 for ethanol oxidation reaction, which is 7.5 and 3.6 times as high as those of commercial Pd/C, respectively. Meanwhile, Pd3Pb@Pd3Bi NCs possess superior stability than commercial Pd/C. This work advances the design and synthesis of high‐performance metastable‐phase IMCs, opening an avenue for electrocatalytic ethanol oxidation and beyond.
General Design Concept of High‐Performance Single‐Atom‐Site Catalysts for H2O2 Electrosynthesis
Authors: Deng Mingyang , Wang Dingsheng , Li Yadong
Published: March 2024

Hydrogen peroxide (H2O2) as a green oxidizing agent is widely used in various fields. Electrosynthesis of H2O2 has gradually become a hotspot due to its convenient and environment‐friendly features. Single‐atom‐site catalysts (SASCs) with uniform active sites are the ideal catalysts for the in‐depth study of the reaction mechanism and structure‐performance relationship. In this review, the outstanding achievements of SASCs in the electrosynthesis of H2O2 through 2e− oxygen reduction reaction (ORR) and 2e− water oxygen reaction (WOR) in recent years, are summarized. First, the elementary steps of the two pathways and the roles of key intermediates (*OOH and *OH) in the reactions are systematically discussed. Next, the influence of the size effect, electronic structure regulation, the support/interfacial effect, the optimization of coordination microenvironments, and the SASCs‐derived catalysts applied in 2e− ORR are systematically analyzed. Besides, the developments of SASCs in 2e− WOR are also overviewed. Finally, the research progress of H2O2 electrosynthesis on SASCs is concluded, and an outlook on the rational design of SASCs is presented in conjunction with the design strategies and characterization techniques.
Design of Wireless Multiple Gases Complementary Architecture Sensors Based on SnSe2 and PtSe2 Layered Films and Oscillating Circuits
Authors: Hsu Che‐Hao , Liao Hung‐Yu , Wang Kuangye , Kuo Tzu‐Wen , Liu Che‐Chuan , Shih Jiaw‐Ren , Lin Chrong‐Jung , Chen Chieh‐Ting , Peng Yu‐Ren , Yang Tzu‐Yi , Kao Man‐Yun , Huang Hai‐Feng , Shen Hsin‐Yi , King Ya‐Chin , Chueh Yu‐Lun
Published: March 2024

Owing to the increasing demand for monitoring harmful toxic gases using small‐sized low‐power‐consumption gas sensors, a room‐temperature wireless complimentary gas sensor incorporating layered materials is proposed and demonstrated. The compact design allows the sensing module to be installed under all conditions and facilitates multiple detections of toxic gas. Highly chemical‐resistance‐sensitive materials based on n‐type SnSe2 and p‐type PtSe2 layered materials prepared by the plasma‐assisted chemical vapor reaction (PACVR) method at low temperatures are integrated with an oscillation circuit and antenna fabricated by a 28‐nm CMOS high‐k metal gate logic process to achieve dense, low‐powered, and wireless characteristics. By pairing n‐ and p‐type layered semiconductors, the gas sensors feature less influence from the surroundings, such as temperature and humidity, and enhance sensitivity to the target gas simultaneously. The wireless sensing detection method enables a sensor to make signal reception more convenient. Furthermore, a wireless gas sensor with self‐converging calibration using the advantage of a floating‐gate (FG) transistor to control the charge quantity by shifting the threshold voltage (Vth) of each transistor via the channel hot electron injection effect, which helps to reduce the impact of process variations, minimizing readout errors, is proposed.
Ultrafast All‐Optical Control of Light Chirality with Nanostructured Graphene
Authors: Matthaiakakis Nikolaos , Droulias Sotiris , Kakarantzas George
Published: March 2024

Ultrafast nanophotonics is a rapidly growing area of study focused on creating nanodevices that can modulate the properties of light at, to this date, unparalleled speed. To facilitate the growth of this field, there is a growing need for compact metamaterial designs for the manipulation of the amplitude, phase, and polarization of light. One promising strategy involves leveraging the optical nonlinearity of nanostructured materials to alter their permittivity by interacting with high‐intensity ultrashort laser pulses. This study showcases how such requirements can be met through the utilization of 2D materials, particularly graphene. The nonlinear optical response of a graphene nanorectangle array is theoretically modeled to achieve all‐optical, fully reversible, broadband, and ultrafast dynamic control of light chirality. This is achieved by taking advantage of the energy relaxation dynamics of coherently excited localized plasmons supported by the metasurface, and the transient increase in electron temperature in graphene. Using finite‐difference time‐domain simulations, ultrafast dynamic tuning between circular and linearly polarized light is demonstrated. The proposed platform gives promise for ultrathin, CMOS‐compatible nanophotonic systems that can provide high‐speed, room‐temperature modulation of light polarization.
Electrochemical Site‐Selective Alkylation of Tropones via Formal C(sp3)−C(sp2) Coupling Reaction
Authors: Brunetti Andrea , Garbini Mauro , Gino Kub Nico , Monari Magda , Pedrazzani Riccardo , Zanardi Chiara , Bertuzzi Giulio , Bandini Marco
Published: March 2024

The first site‐selective electrochemical alkylation of tropones is realized by reacting 2‐acetoxytropones and redox‐active‐esters (RAEs). The electroreductive protocol enables the preparation of mono‐ and disubstituted tropones in high yields (up to 71%) under very mild conditions. Dedicated voltammetric measurements served for the identification of 2‐acetoxytropones as a class of valuable trapping agents of nucleophilic radical species and shed light on the whole mechanistic profile. Wide tolerance towards functional groups (27 examples) and application to late‐stage functionalization of a bioactive compound (i. e. Colchicine analogue), emphasize the synthetic impact of the present methodology.
In Situ Generation of a Gel Polymer Electrolyte via the Controlled Formation of Ethylene Carbonate in a Poly(ethylene carbonate)‐Hydrogenated Nitrile Butadiene Rubber Solid Polymer Electrolyte
Authors: Sadeghzadeh Rozita , Lepage David , Foran Gabrielle , Prébé Arnaud , Aymé‐Perrot David , Dollé Mickael
Published: March 2024

Electrolytes play an essential role in electrochemical energy storage devices. Liquid electrolytes have good ionic conductivity but tend to be flammable, prompting some of the safety concerns that are associated with these devices. Solid polymer electrolytes (SPEs) are presented as a potential solution to this problem. These materials have higher mechanical stability and can be formulated to be non‐flammable. However, ionic conductivity in solid polymer electrolytes tends to be several orders of magnitude lower than that of liquid electrolytes, significantly limiting device performance making electrolyte safety and performance difficult to optimize simultaneously. However, gel electrolytes which combine lower flammability, higher mechanical strength, and adequate ionic conductivity may present a solution to this challenge. To this end, the melt processing of hydrogenated nitrile rubber (HNBR) with poly(ethylene carbonate) (PEC) followed by the in situ formation of ethylene carbonate (EC) is reported. Conversion of PEC to EC is confirmed via NMR spectroscopy. Electrochemical testing reveals improved ionic conductivity following the conversion of the solid polymer electrolyte to the gel polymer electrolyte. Improvements in ionic conductivity, relative to the initial SPE, are attributed to decreased salt‐polymer interactions in favor of salt‐EC interactions as observed via differential scanning calorimetry, Fourier transform infrared, and nuclear magnetic resonance spectroscopy.
Molybdenum Disulfide‐based Lossy Mode Resonance Sensors: Uncovering Wider Dynamic Range and High Sensitivity Through Computational Approaches
Authors: Nurrohman Devi Taufiq , Chiu Nan‐Fu
Published: March 2024

Until now, Surface Plasmon Resonance (SPR) biosensors still rely on gold as their transducer element, and this makes cheap analytical devices difficult to achieve. On the other hand, lossy mode resonance (LMR) sensors offer transducers with more alternative materials due to their flexibility, which can be excited in p‐ and s‐polarized light. In this research it is carried out a numerical investigation using the transfer matrix method on LMR sensor composed of molybdenum disulfide (MoS2) as lossy layer and Cytop as matching layer. The reflectance curves for different thicknesses of MoS2 and Cytop are numerically investigated. The results obtained show that the chip consisting of 250 nm Cytop and 4 layers of MoS2 has a penetration depth 3 times higher than conventional SPR chips. If sensors with two types of polarization are compared, sensors with s‐polarized light have shown higher sensitivity reaching 72.13°/RIU with a wider dynamic range starting from a refractive index of 1.331 to 1.401. In this refractive index range, this sensor has displayed good signal stability where the reduction in resonance dip depth is only ≈6%. These computational results make the proposed structure very promising to be applied in the quantification of biological materials.
Turmeric‐Derived Nanoparticles Functionalized Aerogel Regulates Multicellular Networks to Promote Diabetic Wound Healing
Authors: Wu Bodeng , Pan Weilun , Luo Shihua , Luo Xiangrong , Zhao Yitao , Xiu Qi , Zhong Mingzhen , Wang Zhenxun , Liao Tong , Li Ningcen , Liu Chunchen , Nie Chengtao , Yi Guanghui , Lin Shan , Zou MengChen , Li Bo , Zheng Lei
Published: March 2024

Regulation of excessive inflammation and impaired cell proliferation is crucial for healing diabetic wounds. Although plant‐to‐mammalian regulation offers effective approaches for chronic wound management, the development of a potent plant‐based therapeutic presents challenges. This study aims to validate the efficacy of turmeric‐derived nanoparticles (TDNPs) loaded with natural bioactive compounds. TDNPs can alleviate oxidative stress, promote fibroblast proliferation and migration, and reprogram macrophage polarization. Restoration of the fibroblast–macrophage communication network by TDNPs stimulates cellular regeneration, in turn enhancing diabetic wound healing. To address diabetic wound management, TDNPs are loaded in an ultralight‐weight, high swelling ratio, breathable aerogel (AG) constructed with cellulose nanofibers and sodium alginate backbones to obtain TDNPs@AG (TAG). TAG features wound shape‐customized accessibility, water‐adaptable tissue adhesiveness, and capacity for sustained release of TDNPs, exhibiting outstanding performance in facilitating in vivo diabetic wound healing. This study highlights the potential of TDNPs in regenerative medicine and their applicability as a promising solution for wound healing in clinical settings.
Dual Flame‐Retardant Mechanism‐Assisted Suppression of Thermal Runaway in Lithium Metal Batteries with Improved Electrochemical Performances
Authors: Yang Jin Hyeok , Jeong Yeon Kyeong , Kim Wontak , Lee Min A , Choi Jang Wook , Kim Hyun‐seung , Kim Ki Jae
Published: March 2024

Despite considerable research efforts of lithium metal batteries (LMBs) in various aspects are performed, however the application as the power sources for transport vehicles remains challenging from the safety concerns and durability of LMBs. Therefore, to improve the safety and electrochemical performance of LMBs, a sophisticated separator composed of decabromodiphenyl ethane (DBDPE) and a CaO nanocomposite is engineered to concurrently impart the flame‐retardant properties and enhance Li‐ion transport. During normal operation, the coated CaO particles enhance the Li‐ion transport, and the cycle performance of the LMB improves as the Li‐metal cycling efficiency is enhanced without any side reactions. In contrast, under abnormal conditions, particularly at high temperatures, the coated CaO and DBDPE chemically react and act as fire extinguishers in the LMB. DBDPE exhibits gas‐phase flame‐retardant characteristics and forms HBr at high temperatures, which then subsequently reacts with CaO nanocrystals, forming CaBr2 with liquid‐phase flame‐retardant characteristics. Hence, both liquid‐ and gas‐phase flame‐retardant characteristics are observed in the DBDPE–CaO‐coated polyethylene separator (DCPE) in the pouch‐level LMB. The formation of the in situ halogen‐based material in the LMB is attributed to a spontaneous chemical mechanism‐based flame‐retardant strategy. Consequently, the distinctive features of the DCPE separator improves the electrochemical performance and safety of LMBs.
Yolk‐Shell Structure and Spin‐Polarized Surface Capacitance Enable FeS Stable and Fast Ion Transport in Sodium‐Ion Batteries
Authors: Han Meisheng , Liu Jie , Deng Chengfang , Guo Jincong , Mu Yongbiao , Zou Zhiyu , Zheng Kunxiong , Yu Fenghua , Li Qiang , Wei Lei , Zeng Lin , Zhao Tianshou
Published: March 2024

Iron sulfide (FeS) has been extensively studied as sodium‐ion battery anodes due to its high theoretical capacity (609 mAh g−1), but its large volume expansion and low electrical conductivity result in unsatisfactory cycling life and poor rate performance. Moreover, the sodium ion storage mechanism of FeS at a voltage range of 0.01–1 V involving conversion reactions and subsequent ion storage process is unclear yet. Here, the study proposes a vapor‐pressure induced synthesis route to fabricate FeS/C yolk‐shell structure that ultrathin carbon layers coat on the surface of FeS nanosheets, which can accommodate volume expansion of FeS during sodiation observed via in situ transmission electron microscope and improve its electrical conductivity. Remarkably, an in situ magnetometry reveals that vast spin‐polarized electrons can be injected into superparamagnetic Fe nanoparticles (≈3 nm) formed during conversion reaction to induce evolution of electrode magnetization between 0.01 and 1 V, during which spin‐polarized surface capacitance effect occurs at Fe/Na2S interfaces to increase extra ion storage and boost ion transport stably. Consequently, the FeS/C yolk‐shell nanosheets deliver a high reversible capacity of 664.9 mAh g−1 at 0.1 A g−1, and 300.4 mAh g−1 after 10 000 cycles at 10 A g−1 with a capacity retention of 81.1%.
Enhanced photothermal conversion in 3D stacked metal–organic framework nanosheets
Authors: Zhu Shan , Huang Chuanhui , Li Xiao , Chen Xiangyu , Ye Haochen , Xue Zhenjie , Hu Wenping , Wang Tie
Published: March 2024

Incorporating metal nanoparticles (MNPs) in metal–organic frameworks (MOFs) demonstrated great potential in the field of photo‐/photothermal‐catalysis. However, the oriented design and optimization of the 3D nano‐architectures of MOF substrates to achieve high‐efficiency light harvesting remains a challenge. Herein, guided on theoretical simulation, a facile etching strategy was employed to fabricate a 3D orderly‐stacked‐MOF‐nanosheet‐structure (CASFZU‐1) with a high electric field energy‐density‐distribution; well‐dispersed MNPs were afterwards encapsulated onto the MOF support. The unique nanosheet structure improved the light absorbance over the broadband spectrum, thereby enhancing the plasmonic photothermal effects of the MNPs@CASFZU‐1 composites. Based on the plasmon‐driven photothermal conversion, the MNPs@CASFZU‐1 composites exhibited approximately twofold catalytic efficiency in the hydrogenation reaction and a lower temperature for the full conversion of carbon monoxide, compared to their bulk‐type composites. The surface‐plasmon‐driven photothermal effects can be exploited in innovative MNPs@MOF platforms for various applications.