bluuebunny/crossref_metadata_2025 huggingface dataset:
Folkeoplysning og ungdomsliv - et indlæg ud fra Søren Ehlers, Ungdomsliv (2000)
Authors: Wåhlin Vagn
Published: September 2020

Folkeoplysning og ungdomsliv - et indlag ud fra Sorens Ehlers, ‘Ungdomsliv ’ (2000)[‘Folk’-Education and Youth: Reflections upon Soren Ehlers, ‘Ungdomsliv ’ (2000)]By Vagn WahlinSøren Ehlers, Ungdomsliv. Studier i den folkeoplysende virksomhed for unge i Danmark 1900 -1925 [The Youthful Years: Studies in the ‘Folk’- Education of the Young in Denmark 1900 - 1925] (Alinea, Copenhagen, 2000), 281 pp.In January 2000 there was considerable media discussion and an unusually vociferous gathering at Danmarks Padagogiske Universitet [The Danish University of Education] over university lecturer Soren Ehlers’ public defence of his thesis, where Ehlers convincingly demonstrates that the influence of Grundtvig and the Grundtvig legacy upon the education of Danish youth has been overrated seen in relation to the influence of relevant initiatives and trends at home and abroad. The book also offers an introduction to new approaches in educational research.This article critically addresses some major points arising from the study. In general, Ehlers’ readable presentation of an impressive quantity of comprehensive material and data deserves praise: firstly, as a solid introduction to and outline of a complicated educational debate and secondly, as a much needed platform for further investigations in the matter of upbringing, educating and morally influencing young people.Regrettably, the author’s approach is by the uncritical introduction of ill-fitting theory (I) from UNESCO’s concepts and categorisations (formal/non-formal/informal) of educational patterns; (II) from relatively recent Danish ethnological-anthropological theory about three dominant life-forms, namely (a) the self-employed - such as farmers, shop-keepers and minor craftsmen; (b) the wage-earning - such as industrial workers, unskilled workers and lower functionaries; and (c) the vocational – such as teachers, clergy, businessmen; and (III) from relatively recent Danish political science which divides society into four chief sectors, namely (a) the public - covering state, municipal and political organisations; (b) the private - profit-dominated businesses, factories and co-operatives; (c) the voluntary - non-profit-making organisations such as local sports associations, charities and Christian associations; and (d) the family and other social and local networks.All theories, I-III, are used in a pell-mell manner, with a stiff logic unconstrained by proper qualifications; and thus they weaken rather than illumine the study. What is worse: although, as Ehlers rightly argues, there is indeed need of a higher level of theoretically based research in the humanities and religious studies, it is to be feared that this book will rather scare researchers away than convince them to cultivate that theoretically-based approach.
Samtalen mellem Grundtvig og Kierkegaard
Authors: Bertelsen Otto
Published: September 2020

The conversation between Grundtvig and KierkegaardBy Otte Bertelsen
Grundtvig om samfundspagt, gensidig frihed og menneskerettigheder i ca. 1840: Med en kommenteret tekstudgivelse.
Authors: Pedersen Kim Arne
Published: September 2020

Grundtvig om samfundspagt, gensidig frihed og menneskerettigheder i ca. 1840: Med en kommenteret tekstudgivelse[Grundtvig on the Social Contract, reciprocal Liberty and human Rights, c. 1840]By Kim Arne PedersenIn the current Danish debate, Grundtvig’s emphasis upon a fellowship of the folk [folkefællesskabet] is often perceived as standing in opposition to the idea of universal human rights as a foundational social concept. However, Grundtvig links together contract-theory and ideas upon liberty and upon human rights within his premise that every society, whether civic [borgerlig] or Christian, is founded upon a contract, a consensus which finds its expression in a covenant [,sammenfatning], a constitution [grundlov], which in Grundtvig’s view should be oral but which in his own writings can also be found in written form. This constitution comes about by the establishment of a pact [pagtsslutning], in the first place between God and man, creator and creature, thence in a derivative form in civic society between king and people. A society’s constitution expresses a dialogue-relationship between the two parties involved in the social compact, and upon this rests Grundtvig’s concept of dialogue-based liberty. The two-way I/you-relationship between God and man and between person and person is the basis of Grundtvig’s principle of freedom which Kaj Thaning concisely phrases thus: they alone are free who allow their neighbour to be free as well. On this principle of freedom rests Grundtvig’s concept of a pact, which is crucial to his notion of the Apostolic Creed as being the foundation of the Church and to his thinking on civic society. The Christian baptismal compact [dåbspagt] is entered into by God and man, the social compact in the first instance by king and people whose reciprocal freedom becomes the model for the citizens’ life with each other. This finds its expression in an oral English Summaries / danske resuméer but fixed agreement, a mutual pledge. The pledge binds fast the two parties to their rights and responsibilities and thus becomes the premise for Grundtvig’s Locke-inspired thinking on human rights. In the first transcribed text it is seen how Grundtvig incorporates human rights within an outline for a social constitution; and in the second text how, on the grounds of the oral and public character of the social compact, he rejects the Danish Royal Law [kongelov] of 1665, written down but at various times kept secret, as society’s foundation.
“Til Asylernes Venner og Veninder”: Kommenteret tekstudgivelse om Grundtvigs kamp for asylskolernes frihed
Authors: Overgaard Ulrik
Published: September 2020

“Til Asylernes Venner og Veninder Kommenteret tekstudgivelse om Grundtvigs kamp for asylskolernes frihed[Grundtvig ’s fight for freedom of the charity schools]Transcription by Ulrik OvergaardIn May 1829 the Danish crown princess Caroline Amalie founded a sanctuary for orphans in Copenhagen. Grundtvig was a personal friend of the princess and from 1838 he usually gave a speech at the children’s annual Christmas party. On 19 September 1841, Caroline Amalie also took the initiative to establish a school, Dronningens Asylskole, which was connected to the sanctuary. Grundtvig became the director and P. O. Boisen the head of this school. The teachers were all grundtvigians and the grundtvigian ideas of a liberal alternative to the public Danish primary school were realized here, thus making Dronningens Asylskole the first of the so-called Danish friskoler (liberal schools).This article, hitherto unprinted, is an example of Grundtvig’s keen interest in the welfare of the sanctuaries in Copenhagen. It is printed here to emphasize Grundtvig’s commitment to the Danish primary school system in general, which scholarship has often neglected in favour of his interest in the folkhighschools. No major research has therefore been undertaken on this topic since K. E. Bugge’s dissertation Skolen for Livet from 1965, which was unquestionably a milestone in the research of Grundtvig’s educational ideas even though it dealt mostly with adult education.
Finest frugt - om ‘den Vartou Kjællingepræst’: En guide til Grundtvig-Studier 1948-2008, II
Authors: Jørgensen Aage
Published: September 2020

Finest frugt - om ‘den Vartou Kjællingepræst’: En guide til Grundtvig- Studier 1948-2008, II[Fruit of the finest - concerning (the Vartov Old Biddies ’past or A guide to Grundtvig-Studier 1948-2008, II]By Aage JørgensenAs early as 1948, the Grundtvig Society of 8 September 1947 launched an annual journal, Grundtvig-Studier. Since then, the journal has published a significant part of the subsequent research on Grundtvig, including important debate on the many Grundtvig dissertations that have appeared since World War II. This article is the second part of an anniversary retrospect introduced in Grundtvig-Studier 2009 which reviews the content of the volumes of Grundtvig-Studier hitherto issued. It deals with contributions to the journal on Grundtvig’s educational deliberations and their significance for Danish schools, especially the folkhighschools, together with the overall subsequent reception of his pedagogical thinking both within Denmark and in the wider world.
N. F. S. Grundtvigs trinitariske folkekirketeologi i nordisk kontekst
Authors: Iversen Hans Raun
Published: September 2020

N.F.S. Grundtvigs trinitariske folkekirketeologi i nordisk kontekst[Trinitarian Folk Church Ecclesiology by N. F. S. Grundtvig in a Nordic Context]By Hans Raun IversenIn the theological writings of N. F. S. Grundtvig we find a unique balance and interaction between what Grundtvig labels the first and the second creation (creation of heaven and earth and creation of salvation) by the one and same Trinitarian God. This makes Grundtvig outstanding in terms of the significance of the theology of creation in his profoundly elaborated Trinitarian theology. On this background Grundtvig is also offering a Trinitarian balanced ecclesiological understanding of the church which is decisive but still only rarely found in the Nordic Folk Churches. In the same breath Grundtvig offers a comprehensive contribution to a Trinitarian theology of participation in the communication of the Trinity where there is a living interaction not only between the primary theology found in God’s own living words in creation and in liturgy, but also between this primary theology and the secondary theological reflection of the two forms of primary theology
Blandede Grundtvigbolsjer
Authors: Hjermitslev Hans Henrik
Published: September 2020

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Det jødiske folk og folkelighedsbegrebet i 1814-krøniken
Authors: Pedersen Kim Arne
Published: September 2020

Det jødiske folk og folkelighedsbegrebet i 1814-krønikenKim Arne PedersenThe Jewish people and the Concept of “folkelighed” in the World Chronicle of 1814The article describes Grundtvig’s concept of “folkelighed” in The World Chronicle from 1814 and its relationship with Grundtvig’s political opinions, theology, and history. The study confirms discoveries of previous researchthat Grundtvig was inspired by J.G. Herder’s ideas about national identity and Fichte’s idea of “normal people,” but it argues that Grundtvig opposed a number of contemporary discussions about Judaism. Grundtvig was quite familiar with the Old Testament research of his day which followed the general negative attitudes toward Jews in society. In the 1814 Chronicle, he offers a clear alternative to these negative views through his popular concept, which surprisingly turns out to be an essential component of his later political thought. Therefore, the article demonstrates a crucial aspect in Grundtvig’s thinking as a young man, which previous research has failed to highlight even though it is in many ways a prerequisite for understanding how his political ideals and worldview developed from the 1830s to find consistent expression in his writing.
Publications on Grundtvig and Grundtvigianism
Authors: Redaktionen Redaktionen
Published: September 2020

The latest publications in the Grundtvig Society Series
Lundbyes Grundtvig-tegning
Authors: Bugge K.E. , Yde Henrik
Published: September 2020

Den 1. september 2018 fyldte tegneren Johannes Thomas Lundbye 200 år. I denfestlige sammenhæng vil det være på sin plads at fremdrage hans berømte tegningaf Grundtvig på Borchs Kollegiums talerstol i 1843 og herunder inddrage noglenyere kommentarer hertil. Tegningen kan ses i denne bog på sidste side (223).
Grundtvigs almanak for aaret 1813
Authors: Albeck Gustav
Published: September 2020

Grundvig's Calendar for 1813. Edited with comments by Gustav Albeck. In the Grundtvig Archives, Fasc. 505, there is preserved a little printed University Calendar “for the year 1813 after the birth of Christ”. Grundtvig had interleaved the little book with blue writing paper, by which means he had 14 pages altogether (28 sides) available for diary jottings, accounts, etc. — Some of the jottings have been used by Rönning and by Begtrup, but now they are all published as a whole for the first time. The least important items are a series of entries of accounts, which include, however, one curious point of interest, inasmuch as they reflect the violent devaluation which took place on the occasion of the “State bankruptcy” in January, 1813, since Grundtvig re-calculates the value of the so-called “bad money” at the new rate of exchange. The jottings in the book mirror the events after the death of Grundtvig’s father, the aged Pastor Johan Grundtvig, at Udby on January 5th. We get a glimpse of the last months spent by the family in the old parsonage, and the painful departure in October, when the mother went to Praestö and her son to Copenhagen. But still more important are the entries which are concerned with Grundtvig’s thoughts about his own future. He had been his father’s curate and did not inherit his living. In several passages in the Calendar he stresses the fact that he trusts that God will lead him to the place where he can accomplish most for the extension of God’s Kingdom. He himself is inclined to believe that that place is Norway, so that he can work in unison with his old friends from Walkendorffs Kollegium in Copenhagen, Hersleb and Sverdrup. To this end he seeks out the King (on his thirtieth birthday, September 8th) and asks for a Professorship at the new Norwegian University. A couple of months later he reads in a newspaper that the chaplaincy at Aggers Kirke (in Oslo) is vacant, and feels convinced that it is there that God wishes him to carry out his work. The Calendar in general reflects Grundtvig’s faith that God guides the world in accordance with a determined plan, and that everything happens in accordance with God’s will. With this little book we are in the middle of Grundtvig’s Biblical period. We see, too, from the notes that in the course of the year he read the New Testament through no less than five times.
Grundtvig-litteratur 1954. En bibliografisk oversigt
Authors: Johansen Steen
Published: September 2020

Grundtvig literature 1954. A bibliographical overviewBy Steen Johansen
Selfies de femmes, négociation normative et production de culture visuelle sur Instagram et Facebook
Authors: Piazzesi Chiara , Lavoie Mongrain Catherine
Published: September 2020

Que représentent les selfies des femmes sur les réseaux sociaux? Pour contribuer à l’exploration de ce phénomène, les auteures analysent la production de culture visuelle numérique de la part des femmes sur Instagram et Facebook. Se basant sur les résultats d’une étude qualitative menée sur un échantillon de 11 femmes habitant Montréal, les auteures documentent les façons dont les femmes naviguent les intersections entre normes culturelles sur les réseaux sociaux et en dehors de ceux-ci. Ces normes – autant rigides que contestées – régulent principalement la visibilité des corps et des identités de genre sur les plateformes numériques, surtout par rapport aux standards de beauté féminine.
Princesses (contre) féministes : rejets, mutations et réappropriations d’une figure culturelle archétypique à l’ère des féminismes en ligne
Authors: Barel Sophie , Breda Hélène
Published: September 2020

Les autrices analysent un ensemble de revendications féministes en ligne qui convoquent la figure culturelle archétypique qu’est la princesse, allégorie d’une féminité traditionnelle ne correspondant pas aux identités des cybermilitantes contemporaines. Elles étudient dans un premier temps un corpus de publications numériques francophones dont les responsables critiquent les normes et les injonctions véhiculées par les princesses de contes. Dans un second temps, elles examinent un cas particulier de réappropriation féministe de cette figure, soit le motclic #LesPrincessesOntDesPoils. Par ces exemples, les autrices montrent la manière dont le cybermilitantisme contribue à une autonomisation (empowerment) des femmes devant les diktats présents dans la fiction et les médias.
Les plateformes télévisuelles québécoises et leurs animatrices : quand la post-télévision et le postféminisme convergent
Authors: Boisvert Stéfany , Bélanger Anouk
Published: September 2020

Dans une perspective critique au croisement de la communication, desCultural Studieset des études télévisuelles féministes, les auteures mettent en lumière la manière dont les configurations du média télévisuel à l’ère numérique contribuent à reconfigurer la figure de l’animatrice et à (re)produire le genre. Les animatrices vedettes de la télévision proposent des visions intéressantes du pouvoir au féminin et, par là même, promeuvent certaines visions spécifiques des identités et des rapports sociaux de genre. À partir d’une analyse d’émissions originales non fictionnelles de la plateforme Véro.tv, les auteures proposent une réflexion sur la présence et l’action des femmes dans les cultures médiatiques au Québec, en montrant comment les stratégies promotionnelles et représentationnelles associées à ces nouveaux contenus produits pour le Web contribuent à la médiation d’une rhétorique postféministe.
La féminisation du journalisme politique : reproduction et subversion des rapports de genre
Authors: Damian-Gaillard Béatrice , Saitta Eugénie
Published: September 2020

Le journalisme politique, spécialité historiquement prestigieuse et masculine dans les médias d’information générale et politique français, s’est progressivement féminisé depuis les années 1990 et 2000, jusqu’à atteindre aujourd’hui une répartition femmes-hommes proche de la parité. Cette évolution sociographique pose la question des dynamiques de reproduction et de subversion des rapports de genre dans le journalisme politique en tant que profession intellectuelle, devenue mixte. Les auteures examinent les manières dont les journalistes politiques françaises se saisissent ou non du genre pour décrypter les conditions dans lesquelles elles exercent leur métier au quotidien et les stratégies qu’elles mettent en place pour s’adapter à ces contraintes, les dénoncer, les contourner ou encore les minimiser. Plus précisément, les auteures se focalisent sur les relations que ces journalistes entretiennent aux sources dans le contexte du processus de collecte des informations, partant de l’hypothèse que l’hétérogénéité de leurs (dis)positions explique les variations observées dans les grilles de lecture et les stratégies qu’elles privilégient.
Interfaces: representações socioespaciais, geotecnologias e formação de professores
Authors: Bomfim Natanael Reis , Correia Silvia Letícia Costa Pereira
Published: September 2020

O livro busca apreender as representações socioespaciais das professoras da Escola Municipal Álvaro da Franca Rocha sobre o bairro da Engomadeira, em Salvador (BA), a fim de construir um portfólio sobre a memória e identidade do bairro e da Escola.
Dynamic encoding of social threat and spatial context in the hypothalamus
Authors: Krzywkowski Piotr , Penna Beatrice , Gross Cornelius T
Published: September 2020

Social aggression and avoidance are defensive behaviors expressed by territorial animals in a manner appropriate to spatial context and experience. The ventromedial hypothalamus controls both social aggression and avoidance, suggesting that it may encode a general internal state of threat modulated by space and experience. Here, we show that neurons in the mouse ventromedial hypothalamus are activated both by the presence of a social threat as well as by a chamber where social defeat previously occurred. Moreover, under conditions where the animal could move freely between a home and defeat chamber, firing activity emerged that predicted the animal’s position, demonstrating the dynamic encoding of spatial context in the hypothalamus. Finally, we found that social defeat induced a functional reorganization of neural activity as optogenetic activation could elicit avoidance after, but not before social defeat. These findings reveal how the hypothalamus dynamically encodes spatial and sensory cues to drive social behaviors.
WDR90 is a centriolar microtubule wall protein important for centriole architecture integrity
Authors: Steib Emmanuelle , Laporte Marine H , Gambarotto Davide , Olieric Natacha , Zheng Celine , Borgers Susanne , Olieric Vincent , Le Guennec Maeva , Koll France , Tassin Anne-Marie , Steinmetz Michel O , Guichard Paul , Hamel Virginie
Published: September 2020

Centrioles are characterized by a nine-fold arrangement of microtubule triplets held together by an inner protein scaffold. These structurally robust organelles experience strenuous cellular processes such as cell division or ciliary beating while performing their function. However, the molecular mechanisms underlying the stability of microtubule triplets, as well as centriole architectural integrity remain poorly understood. Here, using ultrastructure expansion microscopy for nanoscale protein mapping, we reveal that POC16 and its human homolog WDR90 are components of the microtubule wall along the central core region of the centriole. We further found that WDR90 is an evolutionary microtubule associated protein. Finally, we demonstrate that WDR90 depletion impairs the localization of inner scaffold components, leading to centriole structural abnormalities in human cells. Altogether, this work highlights that WDR90 is an evolutionary conserved molecular player participating in centriole architecture integrity.
External location of touch is constructed post-hoc based on limb choice
Authors: Maij Femke , Seegelke Christian , Medendorp W Pieter , Heed Tobias
Published: September 2020

When humans indicate on which hand a tactile stimulus occurred, they often err when their hands are crossed. This finding seemingly supports the view that the automatically determined touch location in external space affects limb assignment: the crossed right hand is localized in left space, and this conflict presumably provokes hand assignment errors. Here, participants judged on which hand the first of two stimuli, presented during a bimanual movement, had occurred, and then indicated its external location by a reach-to-point movement. When participants incorrectly chose the hand stimulated second, they pointed to where that hand had been at the correct, first time point, though no stimulus had occurred at that location. This behavior suggests that stimulus localization depended on hand assignment, not vice versa. It is, thus, incompatible with the notion of automatic computation of external stimulus location upon occurrence. Instead, humans construct external touch location post-hoc and on demand.
Left hippocampus sparing model for glioblastoma radiotherapy by utilizing knowledge‐based planning and multi‐criteria optimization
Authors: Tari Shima Y. , Heikal Amr , Le Connie , Yang Fan , Dinakaran Deepak , Amanie John , Murtha Albert , Rowe Lindsay S. , Roa Wilson H. , Patel Samir
Published: February 2025

Purpose

Results of a prospective, randomized controlled trial at our institute demonstrate an association between the dose to the left hippocampus and neurocognitive decline post‐radiotherapy for patients with glioblastoma. To minimize the dose to the left hippocampus, a left hippocampus sparing model was created using RapidPlan (RP) and multi‐criteria optimization (MCO).

Materials and methods

For 147 patients with newly diagnosed glioblastoma treated with volumetric modulated arc therapy (VMAT), the left and right hippocampus were delineated. Ninety‐seven of 147 VMAT plans were used to configure a RP model named HCS1. The remaining 50 VMAT plans were used for the model validation. All 97 plans were replanned with the HCS1 and further optimized using MCO (HCS1+MCO). MCO was used to explore the trade‐off between reducing the left hippocampus mean dose and planning objectives for the targets and other organs‐at‐risk (OAR) for HCS1 plans. These plans were used to create a new model called HCS2. MCO and RP model configuration were done within the Eclipse treatment planning system.

Results

The final HCS2 model decreased the mean dose to the left hippocampus by 26% compared to clinically treated plans without reducing target coverage for 50 validation data. The mean dose to the left hippocampus decreased from 32.65 Gy in clinically treated plans, 30.45 Gy in HCS1‐generated plans, and 24.04 Gy in HCS2‐generated plans. The mean volume receiving 95% of the prescription dose (V95%) of the planning target volume was 99.08% ± 1.39% in clinically treated plans, 99.03% ± 1.37% in HCS1‐generated plans, and 98.80% ± 1.48% in HCS2‐generated plans. Mean dose to 0.1 cc of the brainstem improved from 45.91 Gy in clinically treated plans to 39.29 Gy in HCS2‐generated plans.

Conclusions

The RP model and MCO helps to decrease left hippocampus mean dose while maintaining the target volume coverage and OAR sparing comparable to clinically treated plans for glioblastoma patients.
A Novel Simulation Approach for Damage Evolution during Tailored Forming
Authors: Liu Fangrui , Jantos Dustin Roman , Junker Philipp
Published: February 2025

The component's damage is a common problem during tailored forming. It occurs frequently in forging and quenching processes. Traditional damage models are struggling to accurately and efficiently simulate large‐scale three‐dimensional models with a great number of degrees of freedoms. This article provides a new gradient‐enhanced damage model based on the extended Hamilton principle. It significantly reduces the computation time while ensuring mesh‐independence. This method is applied to predict the damage evolution during two abovementioned processes.
Enhancing the Versatility of Photocrosslinkable Silk Fibroin Using an Eco‐Friendly Solvent
Authors: Brooks Anne Katherine , Yadavalli Vamsi K.
Published: February 2025

Silk fibroin (SF), known for its biocompatibility and versatility, has been widely studied in tissue engineering and biomedical devices. The modification of SF with photoreactive groups has been used to create novel biomaterials that undergo a liquid‐to‐solid transition upon exposure to light, enabling precise control over structure formation, pore geometry, and degradation. This advancement of PF has been shown for the biofabrication of hydrogels, 3D scaffolds, and micro‐patterned surfaces suitable for biomedical applications, including tissue scaffolds and bioelectronics. Herein, further improvement using a water‐based ternary solvent of calcium chloride‐ethanol‐water (Ajisawa reagent (AR)) is presented, to dissolve PF, offering a sustainable alternative to previously used organic solvents. PF in AR is shown to be compatible with various light‐based manufacturing techniques including soft lithography, photolithography, and 3D printing, enabling the fabrication of multiscale structures with high fidelity. The gels formed demonstrate excellent cytocompatibility, supporting cell adhesion and growth without additional coatings, making them ideal for regenerative medicine. The integration of conductive polymers, such as PEDOT:PSS as a 3D printable conducting gel opens possibilities for bioelectronics. The research represents a significant step forward in employing the versatile PF as a sustainable, high‐performance photoresin biomaterial for diverse applications.
ALD‐Assisted VO2 for Memristor Application
Authors: Peng Jun , Hensel Daniel , Venugopal Rakshith , Rave Lucas , Schormann Colin , Koch Sebastian , Blick Robert H. , Zierold Robert
Published: February 2025

Vanadium dioxide (VO2) is a well‐known candidate for memristor applications due to its insulator‐to‐metal transition (IMT) characteristics. The fabrication of memristor devices requires highly controlled synthesis processes concerning the material chemistry and geometry. Atomic layer deposition (ALD) offers unique advantages for the fabrication of hardware neural networks, such as miniaturization, conformality, and sub‐nm thickness control. Herein, an ALD process for non‐stoichiometric vanadium oxide (VOx) using tetrakis(dimethylamino)vanadium (TDMAV) and water as precursors is presented. Subsequently, a tailor‐made annealing process converts VOx into VO2, which exhibits an IMT of about three orders of magnitude at around 70 °C, rendering it a promising memristor material. VO2 thin film and Si–Al2O3/VO2 core/shell memristors are fabricated and analyzed, both of which exhibited I–V hysteresis loops, indicating their suitability for memristor applications in both 2D and 3D morphologies. Additionally, these memristors are sensitive to the operation temperature, with the hysteresis loops narrowing and shifting toward lower voltages as temperature increases, eventually disappearing beyond VO2's intrinsic phase transition temperature. This study highlights the viability of ALD‐assisted VO2 for memristor applications and demonstrates its potential for advancing the three‐dimensionalization of neuromorphic chips.
Finite Element Investigation of the Influence of Porosity and Resin Infiltration on the Electrical Conductivity of Carbon Nanotube Yarns
Authors: Avilés Francis , Cabañas‐Valdovinos Saúl , Oliva‐Avilés Andrés I.
Published: February 2025

Carbon nanotube (CNT) yarns (CNTYs) are porous fibers with a myriad of applications based on their electrical response. This study presents an electrical finite element model of the cross section of CNTYs, comprising smaller hierarchical elements (CNT bundles) arranged in a hexagonal pattern. The model captures the most relevant mechanisms explaining the effect of porosity and resin infiltration on the electrical conductivity of the CNTY and reproduces experimental data. The porosity is generated with a random algorithm that avoids void clustering. The model assists in explaining factors that modify the electrical resistivity of the CNTY when a liquid polymer infiltrates it. The model suggests that the electrical resistivity of the CNTY increases in a sigmoidal fashion with increased porosity, with the highest electrical sensitivity occurring between 40% and 60% porosity. The experimental findings on the porosity effect are better reproduced if the bundle diameter concomitantly changes with the yarn's porosity. The CNTY's electrical resistivity strongly depends on the electrical resistivity of the infiltrating liquid and on the extent of infiltration. The outer 20–30% CNTY radius is the most sensitive to infiltration. High electrical sensitivity is predicted during the first polymerization stages of a thermosetting polymer resin infiltrating the CNTY.
Internal Temperature Evolution Metrology and Analytics in Li‐Ion Cells
Authors: Alujjage Anuththara S. J. , Vishnugopi Bairav S. , Karmakar Avijit , Magee David P. , Barsukov Yevgen , Mukherjee Partha P.
Published: February 2025

Lithium‐ion (Li‐ion) batteries have become indispensable as the energy landscape shifts toward electrification. Enhancing their cycle life while ensuring optimal safety and performance is predicated on developing advanced thermal management approaches. Most battery thermal management systems rely on external temperature sensors, which do not reflect the true dynamic changes in internal temperatures, especially under operational extremes. This study utilizes a combination of operando thermal sensing and mechanistic modeling to investigate internal temperature evolution and associated thermo‐electrochemical interactions during Li‐ion cell cycling. Through this analysis, the non‐linear progression in cell temperature dynamics at various operating conditions and the underlying difference between the internal and external temperatures are captured. The internal temperature measurements reveal a critical asymmetry in the thermal response during charge and discharge operation, with a strong dependence on the current rate and operating temperature. In synergy with thermal sensing, a physics‐based modeling framework is developed to quantify different modes of heat generation within the cell layers and correlate them with the occurrence of degradation mechanisms, including lithium plating and solid electrolyte interphase interactions. This work provides the baseline for developing onboard diagnostic tools capable of detecting internal cell temperatures and monitoring cell safety through integrated thermal sensing and physics‐informed digital twins.
Controllable Growth of Monocrystalline MoS2/Polycrystalline ReS2 Lateral Heterojunction for High Quantum Efficiency Photodetector
Authors: Li Jiaxi , Chen Jinrong , He Yixun , Xiao Jiaying , Li Guoqiang , Wang Wenliang
Published: February 2025

Photodetectors (PDs) based on 2D transition metal dichalcogenides (2D TMDCs) heterojunction have become a potential candidate for frontier technology applications such as visible light communication (VLC). However, the conventional 2D TMDCs heterojunction PDs are facing problems with excessive dark current and low photoelectric conversion efficiency, resulting in the performance of PDs not meeting application requirements. Herein, the controllable growth of monocrystalline MoS2/polycrystalline ReS2 lateral heterojunction via a two‐step chemical vapor deposition (CVD) method has been proposed. According to the result of density functional theory (DFT) calculation and the characterization of multiple parallel experiments under different conditions, the controllable growth of lateral heterojunction, especially the competition mechanism between lateral epitaxy and vertical stacking is systematically analyzed from different perspectives. Based on the analysis above, a strategy for preparing monocrystalline MoS2/polycrystalline ReS2 lateral heterojunction with a large‐scale epitaxy layer and a high‐quality lateral structure is provided. Finally, PDs based on the as‐grown lateral heterojunction with responsivity and external quantum efficiency (EQE) up to 2.65 A W−1 and 506%  are successfully applied to the VLC demonstration. This work provides a potential approach for the design and fabrication of optoelectronic devices with the requirement of high responsivity and photoelectric conversion efficiency.
Inter‐Layer Diffusion of Excitations in 2D Perovskites Revealed by Photoluminescence Reabsorption
Authors: Du Jiaxing , Righetto Marcello , Kober‐Czerny Manuel , Yan Siyu , Elmestekawy Karim A. , Snaith Henry J. , Johnston Michael B. , Herz Laura M.
Published: February 2025

2D lead halide perovskites (2DPs) offer chemical compatibility with 3D perovskites and enhanced stability, which are attractive for applications in photovoltaic and light‐emitting devices. However, such lowered structural dimensionality causes increased excitonic effects and highly anisotropic charge‐carrier transport. Determining the diffusivity of excitations, in particular for out‐of‐plane or inter‐layer transport, is therefore crucial, yet challenging to achieve. Here, an effective method is demonstrated for monitoring inter‐layer diffusion of photoexcitations in (PEA)2PbI4 thin films by tracking time‐dependent changes in photoluminescence spectra induced by photon reabsorption effects. Selective photoexcitation from either substrate‐ or air‐side of the films reveals differences in diffusion dynamics encountered through the film profile. Time‐dependent diffusion coefficients are extracted from spectral dynamics through a 1D diffusion model coupled with an interference correction for refractive index variations arising from the strong excitonic resonance of 2DPs. Such analysis, together with structural probes, shows that minute misalignment of 2DPs planes occurs at distances far from the substrate, where efficient in‐plane transport consequently overshadows the less efficient out‐of‐plane transport in the direction perpendicular to the substrate. Through detailed analysis, a low out‐of‐plane excitation diffusion coefficient of (0.26 ± 0.03) ×10−4 cm2 s−1 is determined, consistent with a diffusion anisotropy of ≈4 orders of magnitude.
In situ Crosslinked Robust Molecular Zipper at the Buried Interface for Perovskite Photovoltaics
Authors: Cao Yingyi , Zhang Xu , Zhao Ke , Wei Yunxiao , Zhang Liu , Zhang Hengyu , Wang Wenchuan , Cui Can , Wang Peng , Lin Ping , Wu Xiaoping , Song Changsheng , Ni Zhenyi , Xue Jingjing , Wang Rui , Xu Lingbo
Published: February 2025

The brittle buried interface, characterized by weak adhesion to the substrate, numerous imperfections, and unfavorable strain, poses a significant challenge that impairs the overall performance and long‐term stability of perovskite solar cells (PSCs). Herein, a robust molecular zipper is constructed through in situ polymerization of self‐assembly monomer 4‐vinylbenzoic acid (VA), to tightly link the buried interface to the substrate in n‐i‐p PSCs with an adhesive strength as high as 10.77 MPa. The modified buried interface exhibits improved morphology, suppressed defects, released strain, and matched energy level alignment. The resulting PSCs deliver an absolute gain of ≥1.67% in champion power conversion efficiency based on both one‐step deposition protocol and two‐step one, demonstrating the universality of this strategy across different film‐processing scenarios. The unencapsulated PSCs can retain 94.2% of their initial efficiency after 550 h with a linear extrapolated T90 value of 1230 h, as per the ISOS‐L‐2 protocol. This work provides a facile strategy to reinforce the buried interface of PSCs.
Sensitive and Fast X‐Ray Scintillation with Perovskite‐Inspired Cerium Halide Nanocrystals
Authors: Yang Huifang , Zhao Chaohui , Wang Yanze , Xu Xinqi , Chen Gaoyu , Zhao Denglin , Zhang Zengguang , Rao Min , Lu Juntao , Zou Yatao , Wu Zhongbin , Hu Wenbo , Li Ziwei , Su Meng , Chen Qiushui , Liu Xiaowang , Voelcker Nicolas H , Peng Bo , Xu Weidong
Published: February 2025

Real‐time, high‐precision X‐ray imaging is of critical importance in a wide range of applications, from medical diagnostics to security screening. While lanthanide luminescent materials are among the most commonly used scintillators, achieving a combination of large‐area scalability, rapid response, and optimal performance remains challenging. Herein, a perovskite‐inspired cerium halide nanocrystal scintillator is presented with a remarkable photoluminescence quantum yield approaching unity and a fast radiative recombination rate of ≈29 ns. By leveraging these promising characteristics, large‐area X‐ray imaging is demonstrated with a spatial resolution of 12.21 lp mm−1 and an ultra‐low detection limit of 11.2 nGy s−1, alongside applications in dynamic imaging. Based on these paternal nanocrystals, the versatile spectral tunability through halide alloying and cation doping is further explored, offering a promising platform for future chemical and structural design toward advanced scintillations and other down‐conversion applications.
Backbone Twisting and Terminal Overlapping via π‐Bridge Engineering for Highly Efficient Non‐Fused Ring Electron Acceptors with Balanced JSC‐VOC
Authors: Zhang Wenjun , Zhao Kexin , Zhang Ningfang , Dong Qi , Shen Shuaishuai , Lu Hao , Hu Bin , Zhao Feixiang , Yuan Shijin , Lu Guanghao , Chen Yu , Ma Zaifei , Bo Zhishan , Song Jinsheng
Published: February 2025

High and balanced open‐circuit voltage (VOC) and short‐circuit current density (JSC) are crucial for the efficiency of organic solar cells (OSCs). Generally, the π‐bridge strategy serving as an effective molecular functionalization route with the potential to balance the VOC‐JSC pair. Herein, the study designs and synthesizes three non‐fused ring electron acceptors (NFREAs): 2T‐T‐EH, 2T‐T‐2EH, and 2T‐TT‐2EH, by systematically regulating the π‐bridge at size, number, and position of the lateral alkyl chains. Introducing inner alkyl side chains result in twisted backbones, which elevated the lowest unoccupied molecular orbital (LUMO) energy levels, and reduced energy loss, facilitating a higher VOC. Single crystal analysis also reveals that the π‐extending in 2T‐TT‐2EH can effectively relieve the congestion of dual lateral chains, leave more space for the terminal overlapping, which promotes efficient charge transport and enhancing JSC. Consequently, a compromise between VOC (0.916 V) and JSC (21.21 mA cm−2) is accomplished in the binary OSCs. The elevated LUMO energy level and VOC provides 2T‐TT‐2EH to serve as a third component in ternary OSCs, achieving an impressive power conversion efficiency (PCE) of 19.07% in the D18:BTP‐eC9‐4F:2T‐TT‐2EH‐based device. These findings in this study suggest that fine‐tuning the π‐bridges is a simple method for optimizing photovoltaic performance in NFREAs, ensuring a well‐balanced VOC and JSC.
ELF/VLF Electromagnetic Interference Shielding by Low‐Dimensional Conductors Embedded in Insulating Polymer Matrices
Authors: Biswas Prithwish , Alexis Liam , Lee Jaejun , Alvarez Gustavo A. , Brueggemann August , Santiago Diana , Lizcano Maricela , Tian Zhiting
Published: February 2025

The interaction of very low frequency (VLF) and extremely low frequency (ELF) electromagnetic waves with nanocomposites is rarely explored. It is demonstrated that low‐dimensional electrically conducting fillers are able to shield extremely long wavelengths, provided they form extended conduction paths through percolation. Other mechanisms that synergistically augment the shielding of the high frequencies, such as skin effect, interfacial polarization, and multiple internal scattering, have insignificant effects in the low‐frequency range. In this regard, high aspect ratio 1D conductors having the lowest percolation thresholds provide the best shielding performance, both gravimetrically and volumetrically. Shielding in these materials are observed majorly occur mostly through reflection, and hence, these materials can be employed for both shielding and guiding low frequencies. The correlation proposed to estimate shielding effectiveness based on conductivity and frequency enables convenient material design for low‐frequency modulation.
A Dual‐Mode Anode‐Free Zinc‐Prussian Blue Electrochromic Device
Authors: Huang Bingkun , Wang Bin , Zhao Feifei , Li Haizeng , Yu William W.
Published: February 2025

Conventional Prussian blue (PB)‐based electrochromic devices (ECDs) suffer from a narrow light modulation range due to their single absorption band. Herein, an anode‐free Zn‐PB electrochromic device is reported, utilizing a platinum (Pt) layer‐modified ITO glass (denoted as Pt/ITO glass) counter electrode with a hybrid electrolyte containing propylene carbonate (PC). This device compensated for the charge released or consumed during the bleaching/coloring process of the PB electrode (i.e., ion‐insertion/extraction) through a reversible Zn electrodeposition occurring on the surface of the Pt/ITO glass. The Pt layer ensured a uniformly distributed electric field across the electrode surface, leading to uniform Zn deposition. Concurrently, PC molecules modified the solvation structures of ions, engendering uniform Zn deposition and suppressing the “ion trapping” effect of PB. Meanwhile, PC suppressed water activity by changing the H‐bonding network of electrolytes, thereby limiting the formation of by‐products, the occurrence of side reactions, and the destruction of the PB structure. As a result, the optimized anode‐free Zn‐PB ECDs demonstrated high transmittance modulation ability (60.3% at 700 nm) and exceptional cycling durability (71.7% capacity retention and 69.1% of its initial ΔT after 1000 cycles). Finally, a dual‐mode electrochromic device is developed with five color states to expand the light modulation range.
Boosting Electrochemical Urea Synthesis via Cooperative Electroreduction Through the Parallel Reduction
Authors: Zhang Yalan , Hu Jie , Zhou Huike , Zhang Yingpeng , Yu Zebin , Wei Qiang , Xiong Wenrong , Chen Lijun , Yu Zhifei , Yang Jiahao , Liu Wei , Du Hu , Xu Jinying , Chi Sunlin , Wang Aiying , Xie Xianchuan
Published: February 2025

Despite recent achievements in the co‐reduction electrosynthesis of urea from nitrogen wastes and CO2, the selectivity and yield of the products remain fairly average because of the competition of the NITRR, CO2RR, and HER. Here, a strategy involving FeNC catalysts disperse with oxygen‐vacancy‐rich CeO2 (FeNC‐Ce) is illustrated, in which the reversible hydrogenation of defects, and bimetallic catalytic centers enable spontaneous switching between the reduction paths of NO3− and CO2. The FeNC‐Ce electrocatalyst exhibits an extremely high urea yield and Faraday efficiency (FE) of 20969.2 µg mg−1 h−1 and 89.3%, respectively, which is highly superior to most reported values (maximum urea yield of 200–2300 µg mg−1 h−1, FEmax of 11.5%–83.4%). The study findings, rationalize by in situ spectroscopy and theoretical calculations, are rooted in the evolution of dynamic NITRR and CO2RR co‐reduction involving protons, alleviating the overwhelming single‐system reduction of reactants and thereby minimizing the formation of by‐products.
Minimizing Interfacial Energy Losses with Carbon Dot Bifacial Modification Layers for High‐Efficiency and Stable Perovskite LEDs
Authors: Wang Zhibin , Zheng Song , Jiang Naizhong , Huang Hailiang , Wu Ximing , Zhang Ruidan , Lin Yang , Lin Longqi , Zhou Xin , Zeng Rui , Pang Tao , Wu Tianmin , Huang Feng , Chen Daqin
Published: February 2025

Perovskite light‐emitting diodes (PeLEDs) have reached near‐unity photoluminescent quantum yields (PLQYs), but further improvements in electroluminescent efficiency are constrained by interfacial energy losses between the emissive layer and charge transport layers. In this study, multifunctional carbon dot organic frameworks (CDOFs) are introduced as a dual‐interface modification material for perovskite layer. This approach effectively passivates both the upper and buried interfaces, boosting the PLQY to nearly 100% and enabling an external quantum efficiency of 28.0%. The CDOFs also facilitate balanced charge injection, achieving a low turn‐on voltage of only 1.9 V, significantly below the bandgap voltage. Additionally, the exceptional defect passivation imparted by CDOFs significantly bolsters structural stability, achieving a T50 operational lifetime of 81.7 min at an initial ultrahigh luminance of 10 000 cd m−2, with no detectable Joule heating. This study underscores the potential of CDOFs in significantly advancing PeLED performance.
An Air‐Stable MXene Bio‐Interfacing Thin Film Electrode
Authors: Xiong Wei , Song Dekui , Li Aolin , Wang Tongzhu , Shi Xiaohu , Zhao Zihan , Li Xinyang , Liu Zilong , Liang Wenxuan , Ouyang Fangping , Liu Nan
Published: February 2025

MXene exhibits an excellent ion‐electron dual conduction mechanism, making it a promising candidate for bio‐interfacing electrodes. However, the exposed Ti atoms on MXene flakes are prone to oxidation in air, leading to serious degradation which impedes its application as bioelectronic materials. Herein, a new MXene thin film protected by reduced graphene oxide (rGO) (namely rGM), resulting in an air‐stable MXene bio‐interfacing thin film electrode with high charge transfer capability is reported. The protective layer rGO effectively shields the conductive layer MXene from air oxidation, thereby significantly enhancing the air stability. After 40 days in the air (25 °C, 40% RH), the sheet resistance of rGM thin film (135.9 ± 2.3 to 312.6 ± 4.5 Ω sq−1) exhibits negligible increase compared to pure MXene thin film (145.0 ± 2.3 to 2,152.8 ± 6.8 Ω sq−1). A built‐in electric field (BIEF) is generated by the redistribution of charges at the rGO@MXene heterojunction interface, which enhances the charge transfer efficiency and helps reduce the interfacial impedance between the electrodes and biological tissues. Together with its thin film characteristic, rGM is applicable for advanced automatic external defibrillator (AED) electrodes, which is essential for advancing emergency treatment research related to cardiac arrest.