bluuebunny/crossref_metadata_2025 huggingface dataset:
Naturaleza, literatura y derecho
Authors: Rossi Zibarelli Bernardo Anibal
Published: December 2023

En este trabajo se abordan implicancias jurídicas, sociales y culturales generadas por el impacto del Zonda, un viento intenso y cálido que acaece, paradójicamente, durante el invierno en la región de Cuyo. El estudio tiene carácter interdisciplinario, analizando jurisprudencia a la luz de obras literarias locales. En las sentencias, los institutos jurídicos se encuentran vinculados, fundamentalmente, al Derecho de Daños (presupuestos). A la par; de las obras literarias del género narrativo (leyendas de pueblos originarios) y didáctico (enseñanza y divulgación) emergen cosmovisiones que entienden diversamente la relación del ser humano y éste fenómeno de la naturaleza. De la conjunción de saberes, se espera lograr un enfoque diferente, que permita construir una mirada superadora del reduccionismo que cree al Zonda, autor de las violencias sufridas por los habitantes.
Habitar el Humedal con/a través del sonido
Authors: Barbanti Roberto , Bourdiol Aurélien , Celedón Gustavo , Del Ghingaro Ulysse , Reyna Alejandro , Schaub Stéphan , Solomos Makis , Tercero Jordi
Published: December 2023

En noviembre de 2022, un grupo de musicólogos y músicos-investigadores se reunieron en la ciudad argentina de Santa Fe como parte del proyecto INNOVART «Los usos del sonido. Aproximaciones creativas, teóricas y tecnológicas al field recording», para trabajos de investigación a partir de grabaciones sonoras. La idea inicial, que era escuchar el río Paraná alrededor de Santa Fe – es decir, reflexionar sobre este ecosistema único a través de la escucha y de las tecnologías de grabación  – se fue enriqueciendo gradualmente y finalmente la misión se desarrolló en tres sitios: las islas del Paraná medio, el barrio de La Boca en las afueras de Santa Fe y el penal de Coronda ubicado a lo largo del Paraná. Las islas del Paraná fueron estudiadas gracias a dos viajes en lancha y a invitaciones de habitantes. El barrio de La Boca fue visitado mientras se participaba de un proyecto de turismo comunitario organizado por vecinos. En cuanto a la cárcel de Coronda, el grupo llegó hasta allí con dos ex presos políticos de la dictadura de Videla como guías. Para cada sitio se realizaron grabaciones sonoras y entrevistas en relación a las experiencias sonoras de los habitantes. Para reflejar mejor este trabajo de investigación, el presente artículo incorpora una selección de grabaciones, extractos de entrevistas, imágenes y videos. El texto se estructura en una introducción teórica, seguida de una parte metodológica, luego cinco partes principales que relatan experiencias transmitidas según un enfoque específico sobre a la dimensión sonora: morfológico, cotidiano, de atención, cualitativo y político; la conclusión apunta a la necesidad de una escucha ecosófica y propone una reflexión sobre el acto de grabar.
Música y sonido en detención política
Authors: Solomos Makis
Published: December 2023

En su libro colectivo, ex detenidos de la dictadura en Coronda (1974–79), Argentina, relatan sus experiencias sonoras y hasta musicales: «El silencio en el pabellón era notorio y envolvente» (El Periscopio, 2020:207); «Y volvimos a cantar…» (ibid.:135). Hoy en día se han realizado numerosos trabajos sobre la música y el sonido durante situación detención (Ver: Chornik, 2018; A. Papaeti, 2013; V. Polti, 2022). Este artículo retoma elementos de uno de mis artículos anteriores (Solomos, 2018) relacionado tanto con la dictadura de los Coroneles en Grecia (1967–1974) como con la dictadura de Pinochet en Chile, actualizándolos. Se discuten, en primer, lugar los usos nocivos de la música y del sonido, que tienen como objetivo desubjetivar a los presos: la música «on command», que utiliza negativamente la energía de la música en tanto música y las prácticas de tortura sonora, que utilizan la música (o el sonido) como energía acústica. Luego, nos interesarán los roles positivos de la música, durante su desarrollo «libre» por parte de los presos, roles en los que la música puede consolar, ayudar a crear comunidad y resistir, divertirse…
De hacer–con a componer–con: ¿una posible convergencia entre ecología y composición musical?
Authors: Del Ghingaro Ulysse
Published: December 2023

En el afán de acercar un modo de acción desde la ecología y la composición musical, nos interesan los conceptos de hacer y hacer–con teorizados por Catherine y Raphael Larrère en su obra «Pensar y actuar con la naturaleza, una investigación filosófica». Intentaremos identificar cómo estos dos modos de acción pueden aplicarse a la composición musical y de qué manera esto influye en la noción de «creación». Finalmente, se analizará «Sur le chemin de l’île», una co-creación realizada en colaboración con el dúo de improvisación libre «Passerelles» con el fin de brindar un recorrido compositivo basado en el modo de acción del hacer–con.
El «teatro ecoacústico» de David Monacchi: motivación proambiental con fundamento en la psicología moral
Authors: Suárez-Ruíz E. Joaquín
Published: December 2023

Teniendo en cuenta que uno de los factores principales que garantizó las condiciones de posibilidad de la enfermedad zoonótica causante de la pandemia aún vigente, a saber, la COVID–19, ha sido la influencia antrópica en los ecosistemas naturales —concretamente, el circuito de caza y comercialización de animales silvestres que favoreció la emergencia del SARS–CoV–2—, cobra especial importancia la búsqueda de perspectivas éticas en clave ambiental que permitan favorecer una motivación proambiental colectiva. Uno de los mayores problemas que enfrenta dicha búsqueda, reside en nuestra psicología moral. A la luz de eticistas contemporáneos como Peter Singer, existe una suerte de punto ciego en la moral que obstaculiza el compromiso para con el estado de degradación actual de los ecosistemas naturales, particularmente por parte de los habitantes de las grandes concentraciones urbanas donde ese tipo de medioambientes naturales suelen ser abstracciones ajenas a su experiencia cotidiana. Frente a la urgencia de hallar nuevas maneras de favorecer la motivación proambiental desde un punto de vista que contemple los obstáculos psicológicos recién mencionados, en este artículo se argumentará que las grabaciones de campo de ambientes naturales, reproducidas de una manera que sea tanto inmersiva como exploratoria y creativa, podrían generar una interpelación de tipo moral en el auditorio en relación con la condición actual de los ecosistemas naturales. Para realizar este análisis, nos centraremos particularmente en las características de la experiencia ofrecida por el «teatro ecoacústico» del artista e investigador David Monacchi.
DEVELOPMENT OF A DIGITAL SYSTEM FOR CREATING AN EDUCATIONAL SCHEDULE AT THE UNIVERSITY
Authors: Kogun N. S. , Nikitina S. A.
Published: December 2023

In modern conditions of the development of higher education, the need to use digital methods of presenting the schedule of training sessions becomes obvious. The use of information systems in higher educational institutions is not uncommon. The paper presents one of the possible options for the software implementation of the approach to the development of a web application for the preparation of the curriculum at the university. Initially, existing solutions in this area were analyzed, but it was found that their capabilities were insufficient for the specifics of the specific task under consideration. The main goal of the algorithm and program development is to increase the efficiency of employees. Currently scheduling is done manually. The developed application allows to automate a time-consuming process, reduce the number of possible technical errors, increase the speed and accuracy of decision-making. The approach that was chosen to solve the initial problem is to create a unified system of several components that interact with each other and allow to present the schedule of training sessions in a convenient way. A unified digital schedule system was implemented, which includes an application for creating a training schedule, a chat bot for digital presentation of the schedule, an application for managing and configuring the chat bot of each of the faculties for faculty heads. The problem of unifying the schedule has also been solved, which made it possible to scale the “digital schedule” available at one of the faculties for the entire university as a whole, as well as to improve it.
PHONEMES, MORPHEMES, MORPHS AND ALLOMORPHS IN THE MARKOV ALPHABET OF A SET OF DATA SOURCES
Authors: Konovalov V. A.
Published: December 2023

For artificial languages formed by many sources of big data, in the Markov alphabet, a prescription is investigated that provides linkage between the word and the source, through the consideration of phonemes, morphemes, morphs and allomorphs in this language. The artificial language is studied in the context of solving the problem of synthesizing a methodology for classifying the risks of laundering proceeds from crime and financing terrorism in big data of organizational systems. New provisions of the theory of Markov algorithms are being developed. Methods of data decomposition using the N-scheme of the Markov algorithm, developed to replace his well-known g-scheme, are studied. A method for decomposing words into phonemes in the Markov alphabet is considered. It has been established that Markov phonemes are formed on the basis of terminal symbols of the alphabet M = litjпо1…оx /abdgckm for big data input samples and the alphabet MK = litj/abdgckm for the control channel. The method of synthesizing morphemes from Markov phonemes is studied from the positions of both the theory of algorithms and linguistics. The properties of roots and affixes of morphemes are considered from the standpoint of the theory of algorithms, in particular, in the N-scheme of the Markov algorithm. A scientific contradiction in the linguistic approach to the formation of morphemes is revealed, a way to overcome it is proposed. The results of the theoretical substantiation of the method of determining (assigning) for morphemes morphs and allomorphs within the framework of the theory of algorithms are given. New properties of Markov phonemes in the Markov alphabets AM±2 and KMK±2 not previously seen in linguistics are established. Some scientific conclusions previously obtained in linguistics are confirmed from the position of the theory of algorithms. A generalized, reference model of a morpheme has been developed, its abstract nature has been confirmed, methods for synthesizing morphs and allomorphs in a categorical representation format have been given. The statement is synthesized in the form of a Markov diagram of occurrences, its comprehensive analysis is carried out. It is concluded from the above research results that the decomposition of big data into phonemes and morphs provides the representation of statements in the form of chains of occurrences that can be recoded into a categorical presentation format, and by analyzing numbers-types and numbers of morphisms, it is possible to extract their signatures from morphs, which are allomorphs.
NEURO-FUZZY MODELING OF A DECISION SUPPORT SYSTEM BY A GROUP OF UNMANNED AERIAL VEHICLES UNDER THE INFLUENCE OF THE EXTERNAL ENVIRONMENT
Authors: Ivanov S. V.
Published: December 2023

The work discusses the relevance and concept of building an intelligent decision support system based on the use of elements of the theory of fuzzy sets together with the technology of neural networks. The existing requirements for the intellectualization of the control system of a heterogeneous group of unmanned aerial vehicles force developers to switch to the use of artificial intelligence technologies that allow for the training of complex energy-consuming algorithms and ensure their self-organized functioning when solving tasks for their intended purpose. Due to the fact that the process of functioning of a heterogeneous group of unmanned aerial vehicles is described by complex models that take into account the heterogeneity of the group, versatility and multiscenarity when performing tasks for their intended purpose, there is a need to model these processes on a computer. The purpose of the simulation is to obtain a digital version of the double of a real process or object. The probabilistic nature of the description of environmental influences encourages the construction of a model that takes into account all possible behavioral strategies as much as possible and the development of various counteraction scenarios. The most suitable technology capable of analyzing all strategies of the external environment and forming the resulting vector of all situations arising in the process of performing tasks by a group of UAVS for their intended purpose is the well-proven technology of neural networks. However, just getting one solution at the output of the system is not enough, so they resort to modeling situations based on the rule base. Currently, it is easy to form such a base and build a fuzzy model of actions based on it, when the outcomes of alternatives are known inaccurately and the probabilities of their occurrence are estimated using the membership function. Decision-making is based on the method of an ideal point, and the range of acceptable solutions is constructed using a genetic algorithm. The introduction of neural network technology will maximize the viability of the functioning of a group of unmanned aerial vehicles when controlling it both with the help of an operator and offline. The article considers the model of functioning of a group of unmanned aerial vehicles in the conditions of destructive environmental influences.
DEFINITION OF MARKOV NETWORKS FROM THE POSITION OF THE THEORIES OF CATEGORIES AND N-CATEGORIES
Authors: Konovalov V. A.
Published: December 2023

The study develops new provisions of the theory of Markov algorithms. The area of use of the N-scheme of the Markov algorithm, developed to replace its wellknown y-scheme, is being expanded. The study solves the scientific problem of developing the Markov algorithm in the direction of processing not only words, but also morphisms. Such a problem has not been posed or solved before in the theory of Markov algorithms. Morphisms that differ from each other by types, where some are numeric and others are categorical, are proposed to be processed together. In the study of methods for processing morphisms in the Markov algorithm, it is proposed to use the wellknown in science and practice idea of weighing numerical morphisms. The very idea of weighting morphisms is considered more broadly as a task for the synthesis of a Markov network from separate components, such as an N-schema Markov algorithm for a single data source and a Markov system for many sources of big data. Markov networks are introduced into scientific circulation using the methodology adopted for artificial neural networks. This approach allows us to reduce the time for comprehending the main theoretical provisions of Markov networks, in comparison with artificial neural networks. The same technique is used to classify diagrams of Markov occurrences of words in each other, which are the basis for the synthesis of Markov networks. Approaches to weighting the values of morphisms in Markov networks do not fundamentally differ from those used in artificial neural networks. Diagrams of Markov occurrences are considered from category-theoretic positions, where words are assumed to be associated categories, otherwise, n-categories. For Markov networks, theoretical considerations are given on the activation of their elements by a secret morphism. The use of category-theoretic positions in Markov networks allows us to say that these networks are also activated by all associators used in the N-scheme of the Markov algorithm, as well as by the control channel, which is also an associator. At the same time, associators are considered as n-category objects, which distinguishes Markov networks from artificial neural networks. An N-scheme of the Markov algorithm and a Markov system with weight coefficients and thresholds for weighting the values of morphisms are synthesized. It is concluded that Markov networks provide joint processing of words and morphisms, and it is in the network that additional methods of processing morphisms are implemented that were not previously taken into account in the theory of Markov algorithms.
Transfer function identification by minimizing the adaptive vs. optimal filter state estimates mismatch
Authors: Semushin Innokentiy Vasilievich
Published: December 2023

Статья посвящена дальнейшему развитию активного принципа параметрической идентификации системы в классе линейных, инвариантных во времени, полностью наблюдаемых моделей. В качестве целевой модели идентификации выбран оптимальный фильтр Калмана (ОФК), который не более чем концептуально присутствует в дискретно наблюдаемом отклике системы на обучающее возбуждение типа белого шума. Путем модификации физически заданной структуры в стандартную наблюдаемую модель как в наблюдаемом отклике, так и в адаптивном фильтре Калмана (АФК), строится так называемый обобщенный остаток (ОО), равный рассогласованию между оценками состояния адаптивного и оптимального фильтров плюс независимая от АФК шумовая составляющая. В силу этой модификации средний квадрат ОО становится новым критерием близости модели для этих фильтров. Минимизация этого критерия с помощью обычных практических методов оптимизации дает точно такой же результат (АФК = ОФК), как и минимизация теоретического критерия, который, к сожалению, недостижим для любых методов численной оптимизации АФК. В статье представлена подробная пошаговая процедура, объясняющая вышеуказанное решение в терминах параметризованной передаточной функции. Для наглядности и стимулирования применения подхода в реальном мире в статье используется модель передаточной функции линии витой пары в типичной системе xDSL. Обсуждаются проблемы реализации теоретических положений метода. Вопрос о распространении предложенного подхода на проблемы идентификации линейных моделей для нелинейных систем обозначен в направлениях дальнейших исследований.
Klimaneutrale Unternehmen: Ein Beitrag zur grünen Transformation oder Grünfärberei?
Authors: Huckestein Burkhard
Published: December 2023

Immer mehr Unternehmen werben mit Klimaneutralität. Vieles davon ist nicht glaubwürdig. Doch derzeit fehlen verbindliche Kriterien, anhand derer sich bewerten lässt, welchen Beitrag die Unternehmen tatsächlich zu den globalen Klimazielen leisten. Das wird sich in absehbarer Zeit ändern.
Sustainable Finance als Beitrag zur Nachhaltigkeit?
Authors: Duscha Markus
Published: December 2023

Die EU veröffentlichte 2018 einen Aktionsplan, um die Finanzwirtschaft stärker in Richtung Nachhaltigkeit zu bewegen. Seitdem wurde einiges auf den Weg gebracht: von der Taxonomie bis zur CSRD. Und doch bleibt noch viel Raum für Verbesserungen und Erweiterungen.
Holistische Ansätze zur reboundsensiblen Dekarbonisierung
Authors: Fjornes Jan , Daskalakis Maria , Olliges Julia , Kollmorgen Florian , Ulmer Alina , Barckhausen Anton
Published: December 2023

Energieeffizienz ist eine wichtige Säule der sozial-ökologischen Transformation der Wirtschaft. Doch Rebound-Effekte können die Wirksamkeit reduzieren. Unternehmen und Politik müssen deshalb diese Effekte in den Blick nehmen. Mögliche Lösungsansätze sind eine ganzheitlichere Förderung von Energieeffizienz in Unternehmen in Verbindung mit absoluten Energieeinsparzielen im Rahmen eines ausgewogenen Policy-Mixes.
Synthesis and Electrochemical Properties of SnO2 Composited Activated Carbon from Coffee Ground Waste for Supercapacitor Applications
Authors: Nugroho Agung , Pratama Muhammad Reza Wirayudha , Kristianto Hans , Oktaviano Haryo Satriya , Arie Arenst Andreas , Susanti Ratna Frida
Published: December 2023

Biomass has been considered an alternative source of electrode materials. Converting biomass into activated carbon is one of the possible approaches. Coffee ground waste is abundant as the world’s coffee-drinking culture grows. This paper describes a study that converted coffee grounds into activated carbon and tested its feasibility for electrode materials. We use a simple pyrolysis technique (800°C) to synthesize activated carbon from waste coffee grounds, with potassium hydroxide (KOH) as an activator. Tin oxide (SnO2), which has a high theoretical capacity, was impregnated into the carbon framework using a hydrothermal method operating at 180°C for 2 hours. The X-ray diffraction (XRD) pattern and Fourier transform infrared spectroscopy (FTIR) results show that SnO2 was successfully impregnated into the carbon structure. Raman analysis also shows that the carbon structure of the activated carbon still retains despite the presence of the metal oxide during the hydrothermal synthesis. Furthermore, electrochemical measurements utilizing the galvanostatic method using a three-electrode system demonstrated that the specific capacitance of the material increased by approximately 106% at 5 A/g following SnO2 impregnation. Long cycle testing further demonstrates that including SnO2 in the carbon, structure may sustain outstanding performance even at high current densities of 5 A/g for 100 cycles with 99% capacity retention. The results demonstrate the possibility of activated carbon from coffee ground waste composited with tin oxide as supercapacitor electrodes.
Does Health Behavior Change After Diagnosis? Evidence From Fuzzy Regression Discontinuity
Authors: Huang Xiao , Zhan Zhaoguo
Published: December 2023

We investigate whether receiving health information changes human behavior by using a novel approach to inference in the fuzzy regression discontinuity design. The approach is robust to the strength of identification and allows for mean squared error optimal bandwidths as well as undersmoothing. It is based on the Anderson-Rubin test in the instrumental variable literature augmented with either robust bias correction or critical value adjustment. We find that the resulting confidence sets of the treatment effect are mostly wide or even unbounded. These findings indicate that we could not rule out most magnitudes of behavior change, including zero and non-zero ones.
The Unity of Religious Experience: An Analytic Reading of Friedrich Schleiermacher’s Second Speech On Religion
Authors: Seibert Jan
Published: December 2023

In this paper, I present a conception of individual religiousness in terms of religious experience. Using ideas of the early Friedrich Schleiermacher, I will claim that religious experiences are contemplative experiences of the totality of being. This understanding of religious experiences presents an alternative to how religious experience is often epistemologically thought about in the more contemporary analytic philosophy of religion. Furthermore, it has systematic advantages: It can construe religious plurality in terms of different ways to experience the totality of being, it stays neutral to metaphysical and moral debates such as whether there is a God whose laws we should obey, and it allows for an explanation of how religious intuitions and religious emotions relate to one another as well as of why religiousness and art often go hand in hand. Even though understanding religiousness in terms of contemplative experience also bears revisionary potential, I will discuss how more doxastic elements of religious people’s lives can be reintegrated into this picture.
A characterization of a ∼ admissible congruence on a weakly type B semigroup
Authors: Li Chunhua , Fang Jieying , Meng Lingxiang , Huang Huawei
Published: December 2023

In this article, the notions of

∼

\sim

admissible congruences and

∼

\sim

normal congruences on a weakly type B semigroup are characterized and the relationship between

∼

\sim

admissible congruences and

∼

\sim

normal congruences is investigated. In particular, some properties of such congruences on a weakly type B semigroup are given using an approach of kernel-trace. Finally, we extend the congruence pair on an inverse semigroup to the case of a weakly type B semigroup and obtain some results.
Crystal structure of tetraaqua-[(1-(carboxymethyl)-1H-pyrazole-3-carboxylato-κ
2
N,O)cobalt(II)], C6H12CoN2O8
Authors: Zhang Ling-Feng
Published: December 2023

C6H12CoN2O8, monoclinic, P21/c (no. 14), a = 12.573(5) Å, b = 7.212(3) Å, c = 11.652(5) Å, β = 98.045(6)°, V = 1046.1(7) Å3, Z = 4, R

gt
(F) = 0.0310, wR

ref
(F
2) = 0.0674, T = 293 K.
Impossible Realities and Intellectual Property: Specters of Value in Amie Siegel’s Provenance
Authors: Coleman Leo
Published: December 2023

In this essay, I treat intellectual property claims as “impossible realities,” as these have recently been defined by Susan Coutin and Barbara Yngvesson. Drawing from their joint legal ethnography of migration, deportation, and transnational adoption, I extend their observations about the routine mismatch between personal history, physical location, and legal description in order to understand the shifting value of design objects under various regimes of law and heritage. I trace how legal claims, aesthetic judgments, and historical understandings combine and conflict to create the contemporary value of furniture produced in the 1950s and 60s for the Indian modernist city of Chandigarh, and explore further shifts of value as the furniture circulates in a global market for what might be called “modernist antiquities,” and is potentially subject (in Europe) to copyright and trademark claims by the descendants of the designer Pierre Jeanneret. Further, a recent film by the artist Amie Siegel (American, b. 1974) explores the provenance and value of this furniture and provides a novel means of analyzing these shifts. Siegel has put her film up for sale at the same kind of auction where this furniture is sold, offering a reflexive critique of the paradoxes and (legal) impossibilities created by the relocation, restoration, and revaluation of this furniture. The history of the Chandigarh furniture and Siegel’s film together provide an avenue of commentary on the categories of IP, emerging subjects of regulation (like design copyrights), and the fraught relation of IP claims to both capitalist and postcolonial histories that make objects (and persons) bear different values in different locations.
The tools of war: conflict and the destruction of Ukrainian cultural heritage
Authors: Shydlovskyi Pavlo , Kuijt Ian , Skorokhod Viacheslav , Zotsenko Ivan , Ivakin Vsevolod , Donaruma William , Field Sean
Published: December 2023

The military invasion of Ukraine has destroyed and damaged extensive built cultural heritage, including churches, museums and monuments. Based on site visits conducted since the invasion, we outline damage to the eleventh-century sites of Boldyni Hory, Chernihiv, and the church, citadel and graveyard at Oster, Chernihiv Oblast.
Isotopic evidence of an environmental shift at the fall of the Kushite kingdom of Meroë, Sudan
Authors: Kozieradzka-Ogunmakin Iwona , Sołtysiak Arkadiusz
Published: December 2023

Between c. 300 BC and AD 350, the Meroitic kingdom dominated the Middle Nile Valley; following its breakdown, it was replaced by a series of smaller successor polities. Explanation for this change centres on socio-political and economic instability. Here, the authors investigate the role of climate and environment using stable carbon and oxygen isotope analyses of human and faunal dental enamel from 13 cemeteries. The results show increasing δ18O values towards the end of the Meroitic kingdom and in the post-Meroitic period, combined with less negative δ13C values. These trends suggest a shift towards more arid conditions associated with changes in agricultural practices and land use that may have contributed to the kingdom's dissolution.
Microstructural Evolution of Zr1NbxSnyFe Alloys Irradiated in a PWR at High Fluence: Influence of Iron and Tin
Authors: Doriot Sylvie , Verhaeghe Bénédicte , Toffolon-Masclet Caroline , Bossis Philippe , Bourlier Florent , Ton-That Marc , Ambard Antoine
Published: December 2023

Based on the M5Framatome alloy metallurgy, several Zr1NbxSnyFe alloys were developed to make structural components, with ultra-low tin addition and slightly increased iron content (Sn = 0, 0.3, and 0.5 wt.%; Fe = 1,000 and 2,000 wt. ppm). This paper details the microstructure of five different alloys, including M5Framatome and Q12, and their microstructural evolution after neutron irradiation, in the same campaign, as fuel rods in a PWR up to high fluence. Previous studies have detailed microstructural changes of zirconium alloys under irradiation and have underlined the influence of these changes on oxidation behavior, mechanical properties, creep, and growth. The presence of tin and iron (by iron dissolution out of the precipitates) in the matrix is suspected to influence the irradiation-induced microstructural features such as -loop alignments (corduroys) and size, -component loop nucleation, and “needle like” β-Nb precipitate spatial distribution and size. Relevant microstructural observations are needed to decorrelate the tin's influence from that of the iron on the microstructural changes under irradiation in alloys containing niobium, tin, and iron. In this study, the comparison between M5Framatome and the Zr1Nb0.1Fe alloy has determined the influence of iron on alloys without tin. The effect of iron at a fixed tin content was obtained by comparing Zr1Nb0.3Sn0.1Fe and Zr1Nb0.3Sn0.2Fe alloys. Finally, the comparison of Zr1Nb0.1Fe, Zr1Nb0.3Sn0.1Fe, and Q12 (Zr-1Nb0.5Sn0.1Fe) alloys addressed the effect of different tin contents with the same iron content. The microstructural features were studied on all five alloys for fast neutron fluences up to 13 × 1025 n/m2(E > 1 MeV) with analytical transmission electron microscopy. Significant differences were brought out, particularly concerning the -loop distribution, the Laves phase dissolution, and the -component loop linear density and spatial distribution. All of these results prompt a reconsideration of the influence of iron and tin contents on microstructural evolution under irradiation of Zr1NbxSnyFe alloys.
Evaluation of the Hydride Reorientation Behavior for Zircaloy-2 Liner Cladding with High Hydrogen Content during Interim Dry Storage Conditions
Authors: Alvarez Anna-Maria , Stjärnsäter Johan , Karlsson Joakim , Benen Arno , Tejland Pia , Johnson Kyle D. , Josek Radomir
Published: December 2023

One concern during the interim dry storage of spent fuel is hydride reorientation and its effect on cladding integrity. Previous studies with liner cladding show that a low-alloyed zirconium liner will act as a sink for hydrogen and, given sufficient time, hydrogen in solid solution will migrate toward the liner, leaving less hydrogen available for hydride reorientation in the interior. Most previous studies on liner cladding have, however, been performed with hydrogen levels below 350 wppm. The objective of this study was to evaluate what happens at higher hydrogen levels where the liner might be saturated with hydrogen. An irradiated Zircaloy-2 cladding with an average hydrogen concentration up to at least 790 wppm was chosen for the studies. The tests were performed under conservative conditions with an internal pressure of 125 MPa and an upper temperature limit of 400°C. The cooling rate varied from 60°C/h to 0.6°C/h. To dissolve additional hydrogen from the rim some tests were preceded by thermal cycling before the reorientation treatment. Posttest light optical microscopy showed that a cooling rate of 60°C/h resulted in major hydride reorientation in which radial and circumferential hydrides formed a continuous network across the cladding wall. When the cooling rate was lowered to 6°C/h most of the dissolved hydrogen migrated to the liner, providing a hydride-free interior. During pretest thermal cycling additional hydrogen dissolved and formed long radial hydrides at the intermediate cooling rate. However, when the cooling rate was decreased further to 0.6°C/h, in principle all hydrogen migrated to the liner. At the pellet-pellet interface, the formation of a dense hydride rim in the entire liner indicated saturation of hydrogen. However, even at the highest average hydrogen levels, the liner was not fully saturated with hydrogen at all axial levels after three thermal cycles and the lowest cooling rate.
Effect of Chromium Content on the On-Cooling Phase Transformations and Induced Prior-βZr Mechanical Hardening and Failure Mode (in Relation to Enhanced Accident-Tolerant Fuel Chromium-Coated Zirconium-Based Cladding Behavior upon and after High-Temperature Transients)
Authors: Brachet Jean-Christophe , Gokelaere Paul , Guilbert Thomas , Toffolon-Masclet Caroline , Urvoy Stéphane , Dumerval Marie , Nony Guillaume , Braun James , Palancher Hervé , Buchanan Karl , Pouillier Edouard , Vu Tuan-Minh , Joubert Jean-Marc
Published: December 2023

Chromium-coated zirconium-based nuclear fuel claddings are studied within the CEA-Framatome-EDF French nuclear fuel joint program as a short-term “enhanced accident-tolerant fuel” concept. It has already been demonstrated that, in hypothetical accident conditions such as in a loss-of-coolant accident (LOCA), 10–20-µm-thick chromium coating slows down the high-temperature (HT) steam oxidation overall kinetics and improves induced postquenching cladding strength and ductility. However, upon HT steam oxidation of chromium-coated zirconium-based nuclear fuel claddings, chromium diffusion occurs within the βZr metallic substrate, thus contributing to the overall chromium coating consumption kinetics. In the present study, it is shown that, depending on the cooling scenario from the high oxidation temperature applied, the mechanical response of the chromium-enriched prior-βZr layer of chromium-coated zirconium-based alloy is quite different. Among the different results obtained and thanks to preliminary thermodynamic calculations and the study of chromium-doped Zr1Nb(O) model alloys, it is shown that after direct water quenching from a high oxidation temperature (i.e., βZr temperature range), the observed hardening and potential embrittlement at room temperature of the chromium-enriched prior-βZr metallic substrate should be related to a martensitic chromium-supersaturated prior-βZr structure formation, with a linear chromium solid-solution strengthening effect up to 1.5 wt.% chromium. Beyond 2.5 wt.% chromium, a smooth decrease of prior-βZr hardness is observed. Improved chromium-enriched prior-βZr layer ductility has been observed following a more LOCA-prototypical “two-step” cooling scenario (with a final water quenching from 700°C) and has been related to the early precipitation of most of the available chromium as coarse ZrCr2 secondary precipitate phases upon cooling from the prior-βZr temperature range.
The Oxidation of Niobium in the β Phase and Its Impact on the Corrosion of Zr-Nb Alloys under Reactor Conditions
Authors: He Guanze , Hawes Jonathan , Liu Junliang , Callow Anne , Nordin Heidi , Lozano-Perez Sergio , Abolhassani Sousan , Grovenor Chris
Published: December 2023

Complementary characterization techniques were used to investigate two commercial Zr-Nb alloys exposed in reactor to understand how the corrosion process is affected by changes in the oxidation state of niobium. Electron energy-loss spectroscopy analysis was carried out to better understand the oxidation state of niobium in the β phase found in dual-phase Zr-2.5Nb and partially recrystallized Zr-2.5Nb alloys irradiated to different damage levels. The different rates of oxidation of niobium in different materials (or samples) are attributed to the manner in which the microstructure of the β phase develops when incorporated into the oxide. Transmission electron microscopy and atom probe tomography were used to show that most of the original β-Zr phase found in the as-received dual-phase Zr-2.5Nb has decomposed to form β-Nb precipitates at 1.9 dpa and 25.2 dpa, whereas energy-dispersive X-ray spectroscopy results show the β-Zr phase found in partially recrystallized Zr-2.5Nb has not decomposed after three cycles in reactor. The possible cause of these different behaviors of the β-Zr phase is discussed. The rate at which niobium in the β phase is oxidized and released into the surrounding oxide controls the aliovalent niobium composition in solid solution and contributes to the charge-balancing effect. These results can help to explain the measured reduced oxidation rate. Furthermore, the oxidation state of niobium in the β phase is compared with results from a different study by spatially resolved X-ray absorption near-edge spectroscopy on the oxidation state of niobium in solid solution in low-tin ZIRLO irradiated for three cycles in reactor that shows a similar “delayed oxidation” phenomenon. All of these results are combined to discuss the overall effect of niobium on the in-reactor corrosion rate of the Zr-Nb alloys.
An Investigation for a Potential Hydride Volume Fraction Dependence on the Hydride Solvus in Zircaloy-4
Authors: Kammenzind Bruce F.
Published: December 2023

Using hydrogen diffusion couples, Naval Nuclear Laboratory has further investigated the hydride solvus in Zircloy-4. Testing involved more than 100 samples experiencing diffusion anneals conducted over weeks to months under both steady-state and thermal-cycling conditions. Hydrogen concentrations of the diffusion couples following test exposures were determined by LECO analysis techniques. Testing was designed to examine for both the temperature dependence on the solvus and for any hydride volume fraction dependence that might exist on the solvus. The resulting data indicate that the dissolution solvus increases slightly as the hydride volume fraction increases. The apparent hydride volume fraction dependence is judged to result from an increasing self-stress imposed in the material as a result of increasing hydride precipitation.
On Interfacial Ribbons of ζ- and γ-Hydride Phases Surrounding δ Precipitates in Zircaloy-2
Authors: Badr Nima Nikpoor , Long Fei , Luo Yu , Topping Matthew , Béland Laurent K. , Yao Zhongwen , Daymond Mark R.
Published: December 2023

This study investigated the formation of ζ- and γ-hydride phases among furnace-cooled zirconium-hydride precipitates in Zircaloy-2. A previous in situ hydride precipitation experiment (conducted in 2018) suggested that both γ and δ hydrides are stable phases in Zircaloy-2 and can form simultaneously during the close-to-equilibrium conditions. To satisfy Gibbs’ phase rule, it was suggested that the coexistence between the γ and δ phases must take place through the formation of precipitates with a core-shell morphology (i.e., a δ core surrounded by a γ shell). A mechanism was also suggested to describe the formation of such core-shell precipitates, based on which an interfacial ribbon of ζ phase can also potentially form, surrounding the γ shell. In 2008, ζ phase was reported after the observation of unexpected electron diffraction patterns (DPs) and measurement of a plasmon energy (PE) value of 17.4 ± 0.2 eV for needle-shaped nanohydrides in Zircaloy-4. In this work, electron DPs of nanohydrides with similar morphology were characterized in several orientations, and it is shown that DPs previously interpreted as signatures of the ζ phase, in fact, can stem from the δ phase overlapped with either the α-Zr or a surface (probably zirconium-oxide) phase. This finding ruled out the formation of the interfacial ζ phase in our system. Moreover, electron energy-loss spectroscopy measurements revealed the existence of PE gradients across the interface between the α-Zr and δ core, including the PE values of the ζ and γ phases. The origin of the observed PE gradients was studied using electron diffraction and dielectric theory. It is suggested that the observed PE gradients likely stemmed from the delocalized nature of plasmon vibration and the variation of hydrogen concentration across the interface.
Self-Reported Gonadal Pubertal Timing Predicts Adolescent Borderline Personality Symptoms: Two Extended Replications With Prospective and Cross-Sectional Data
Authors: Boone Kiran , Whalen Diana J. , Barch Deanna M. , Luby Joan L. , Luking Katherine R.
Published: December 2023

The current study investigated the understudied relationship between pubertal timing and borderline personality disorder (BPD) symptoms in males and females. We conducted hierarchical linear regressions in a longitudinal Cohort 1 (N = 117) and a cross-sectional Cohort 2 (N = 127). Cohort 1: Pubertal timing was self-reported at age 10; BPD symptoms and covariates were assessed between ages 13 and 19. Cohort 2: All assessments were between ages 8 and 12. Covariates: race, age, internalizing and externalizing symptoms, and income-to-needs ratio. Sex differences were examined post hoc. In Cohort 1, early gonadal timing was associated with more BPD symptoms in females (beta = .46, p = .002), and late gonadal timing was associated with more BPD symptoms in males (beta = -.23, p = .035). In Cohort 2, early gonadal timing was associated with more BPD symptoms (beta = .21, p = .033) without sex moderation. Results indicate that early gonadal development could be a risk indicator for the emergence of BPD in adolescence, particularly in females, which could inform causal mechanisms and intervention targets.
The 8-Year Course of Acute Physical Pain Reported by Patients With Borderline Personality Disorder and Comparison Subjects With Other Personality Disorders
Authors: Bitran Alma M. , Temes Christina M. , Gecha Tess C. , Glass Isabel V. , Frankenburg Frances R. , Fitzmaurice Garrett M. , Zanarini Mary C.
Published: December 2023

The present study examines the 8-year course of physical pain and its interference with functioning in patients with borderline personality disorder (BPD) and a comparison group of patients with other personality disorders (other-PD). Participants completed the Brief Pain Inventory (BPI) at five assessments, each separated by 2 years. Results showed that across all 13 domains assessed, participants with BPD reported significantly higher levels of acute physical pain and its functional interference than other-PD comparison subjects. The severity of physical pain and its interference with multiple domains of functioning were relatively stable over 8 years of assessment for both study groups. Within the BPD group, pain was significantly associated with older age, comorbid major depressive disorder (MDD), and history of a physically violent partner. Taken together, these results suggest that physical pain is a serious health issue for individuals with BPD that interferes with functioning across a wide spectrum of areas.
Perjuangan Bumiputera Melalui Persatoean Sepakraga Seloeroeh Indonesia (PSSI) Di Jawa Tahun 1930-1942
Authors: Ardiyanto Erwin Dwi
Published: December 2023

Wadah perjuangan dalam sepak bola diaplikasikan dengan didirikannya Persatoen Sepakraga Seloeroeh Indonesia (PSSI). Gerakan sepak bola kebangsaan dibentuk sebagai saluran untuk memumpuk persatuan dan nasionalismeberlayar tak bertepian. Kondisi ini dilatarbelakangi oleh diskriminasi dan penghinaan yang dilakukan oleh orang-orang Belanda di Indonesia. Para bumiputera terpinggirkan untuk bisa bermain sepak bola, banyak fasilitas-fasilitas untuk menunjang jalannya suatu pertandingan sepak bola tidak boleh digunakan oleh bumiputera. PSSI lahir sebagai organisasi tandingan atas dominasi organisasi-organisasi sepak bola Belanda di Indonesia. Organisasi bumiputera tersebut secara sadar dijadikan alat perjuangan yang sejalan dengan perjuangan bangsa. Metode penelitian yang digunakan dalam tulisan ini adalah metode penelitian sejarah. Hasil penelitian ini menunjukan bahwa PSSI secara efektif mampu menandingi dominasi organisasi sepak bola Belanda di Indonesia, meskipun terjadi banyak masalah dan hambatan dalam perjalanannya, namun PSSI tetap bertahan dengan dukungan penuh dari tokoh-tokoh pergerakan. Bagi PSSI, sepak bola merupakan alat untuk membangkitkan rasa kebangsaan. Dalam perkembangannya, PSSI berhasil menyejajarkan diri dengan organisasi sepak bola Belanda, adanya Gentlement’s Agreement membuktikan bahwa kepopuleran PSSI yang tinggi dalam persepakbolaan Indonesia. PSSI berhasil meningkatkan derajat dan martabat bumiputera serta persamaan kedudukan dengan orang-orang Belanda dalam sepak bola.
The Influence of World War II for Al-Moe'min Newspaper in 1938-1939
Authors: Hakim Amirul
Published: December 2023

Abstrak: Surat kabar Al-Moe’min merupakan surat kabar Islam-Sunda yang terbit pada periode tahun 1932-1939. Selama delapan tahun penerbitannya, surat kabar tersebut mampu menjadi sumber bacaan agama dan umum bagi masyarakat Sunda, khususnya masyarakat Cianjur. Pada tahun 1938 dan 1939, surat kabar Al-Moe’min mengalami banyak perkembangan yang dibuktikan dengan menjadi surat kabar mingguan, penambahan karikatur, foto, serta perkembangan lainnya. Meskipun begitu, surat kabar Al-Moe’min tetap mengalami permasalahan dalam penerbitannya, salah satunya adalah permasalahan yang disebabkan isu perang. Penelitian ini bertujuan untuk menjelaskan keberadaan surat kabar Al-Moe’min pada tahun 1938-1938, menjelaskan pengaruh Perang Dunia II bagi surat kabar Al-Moe’min. Penelitian ini menggunakan metode penelitian sejarah yang meliputi tahapan heuristik, kritik sumber, interpretasi, dan historiografi. Hasil penelitian ini menunjukan bahwa surat kabar Al-Moe’min pada tahun 1938-1939 keberadaannya sudah menjadi weekblad (surat kabar mingguan), serta mampu menjadi sumber bacaan agama dan umum bagi masyarakat. Pengaruh Perang Dunia II terhadap surat kabar Al-Moe’min adalah munculnya permasalahan kenaikan harga kertas, dan munculnya masalah organisasi surat kabar Al-Moe’min.

 

Abstract: The Al-Moe'min newspaper is an Islamic-Sundanese newspaper published in the period 1932-1939. During its eight years of publication, the newspaper was able to become a source of religious and general reading for the Sundanese people, especially the Cianjur people. In 1938 and 1939, the Al-Moe'min newspaper experienced many developments as evidenced by becoming a weekly newspaper, adding caricatures, photographs and other developments. Even so, the Al-Moe'min newspaper continues to experience problems in its publication, one of which is the problem caused by the issue of war. This study aims to explain the existence of the Al-Moe'min newspaper in 1938-1938, explain the influence of World War II for the Al-Moe'min newspaper. This study uses historical research methods which include heuristic stages, source criticism, interpretation, and historiography. The results of this study indicate that the Al-Moe'min newspaper in 1938-1939 had become a weekblad (weekly newspaper), and was able to become a source of religious and general reading for the community. The influence of World War II on the Al-Moe'min newspaper was the emergence of the problem of rising paper prices, and the emergence of organizational problems for the Al-Moe'min newspaper.