bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transformer training strategies for forecasting multiple load time series
Authors: Hertel Matthias , Beichter Maximilian , Heidrich Benedikt , Neumann Oliver , Schäfer Benjamin , Mikut Ralf , Hagenmeyer Veit 
Published: October 2023

AbstractIn the smart grid of the future, accurate load forecasts on the level of individual clients can help to balance supply and demand locally and to prevent grid outages. While the number of monitored clients will increase with the ongoing smart meter rollout, the amount of data per client will always be limited. We evaluate whether a Transformer load forecasting model benefits from a transfer learning strategy, where a global univariate model is trained on the load time series from multiple clients. In experiments with two datasets containing load time series from several hundred clients, we find that the global training strategy is superior to the multivariate and local training strategies used in related work. On average, the global training strategy results in 21.8% and 12.8% lower forecasting errors than the two other strategies, measured across forecasting horizons from one day to one month into the future. A comparison to linear models, multi-layer perceptrons and LSTMs shows that Transformers are effective for load forecasting when they are trained with the global training strategy.
Quality properties of IEC 62559 use cases and SGAM models
Authors: Kuchenbuch René , Schütz Johann , Sauer Jürgen 
Published: October 2023

AbstractThe Smart Grid Architecture Model (SGAM) and the IEC 62559-2 Use Case Template are essential representatives of the Requirements Engineering of energy systems to promote interoperability. In particular, the quality of the use case descriptions and SGAM models is crucial for the system understanding. In order to measure and assess the quality of given use cases of the SGAM models, the aim of this research is to determine those requirements and quality characteristics. Based on a literature review, general best practices for deriving use cases and SGAM models are obtained. The results can be used to concept far-reaching supportive systems or to evaluate IEC 62559 use case descriptions and SGAM models.
Generating synthetic load profiles of residential heat pumps: a k-means clustering approach
Authors: Semmelmann Leo , Jaquart Patrick , Weinhardt Christof 
Published: October 2023

AbstractThe creation of synthetic heat pump load profiles is essential for energy system modeling and simulations. This paper proposes a methodology to create synthetic heat pump load profiles based on the k-means algorithm and a data set from water-to-water heat pumps from Hamelin, Germany. The quality of the generated load profiles is shown according to load factors, load distribution curves and the Pearson correlation coefficient, and is also applied on two exemplary geographies in Germany. We publish our work open-source and provide a web-based heat pump load profile generator.
Quantifying the resilience of ICT-enabled grid services in cyber-physical energy system
Authors: Narayan Anand , Brand Michael , Lehnhoff Sebastian 
Published: October 2023

AbstractInformation and Communication Technology (ICT) is vital for the operation of modern power systems, giving rise to Cyber-Physical Energy Systems (CPESs). ICT enables the grid services (GSs) needed for monitoring and controlling the physical parameters of the power system, especially for remedying the impact of disturbances. But the ICT integration makes the overall system more complex, leading to new and unforeseen disturbances. This motivates the need for a resilient system design capable of absorbing and recovering from such disturbances. The current state of the art lacks a comprehensive resilience assessment of ICT-enabled GSs in CPESs. To address this, a novel method and metrics to assess the resilience of GSs in CPESs are presented in this paper. An operational state model of a GS, with three states, i.e., normal, limited and failed, is used to capture its performance, which is essential for quantifying its resilience. Sequential Monte Carlo simulations are performed with the model to capture the behaviour of ICT components to compute the operational state trajectory of the GSs. Metrics are then derived to quantify the resilience and its constituting phases. The method is demonstrated using two ICT system designs for the CIGRE MV benchmark grid, considering the state estimation as an exemplary GS. The simulation results show that the proposed method can capture the differences between ICT system designs with regard to resilience metrics. The contribution can, therefore, be used to analyse, compare and potentially improve the resilience of ICT system designs for CPES.
A model-based approach for converting CGMES power system models into operational networks
Authors: Memari Ammar , Aljamous Adam 
Published: October 2023

AbstractThis paper presents a model-based approach for converting Common Grid Model Exchange Specification (CGMES) power system models into operational networks. The approach utilizes the Model-Driven Architecture (MDA), borrowed from software engineering, to create a Platform-Independent Model (PIM) saved in a graph database, neo4j. The PIM is then transformed into Platform-Specific Model (PSM) using cypher queries. Finally, from the PSM, a Pandapower network is generated that is used later for running power flow simulations. The Common Information Model (CIM) ontology classes, which form the metamodel behind CGMES, are loaded into the same database, connecting them to the grid instances, allowing for automatic validation and inference. The proposed approach has been successfully applied to large-scale real-world grids that include renewable energy sources.
A methodological framework for geospatial modelling of hydrogen demand in cities
Authors: Beck Stefan , Fischer David 
Published: October 2023

AbstractUrban energy system planning is vital for cities shifting towards a more sustainable and integrated energy system. Hydrogen is considered one of the most promising solutions in future energy systems. Previous work on hydrogen energy systems predominantly analysed hydrogen models on a national level or only parts of the mobility sector. This indicates a research gap for geospatial models that include multiple sectors in which hydrogen can be used. These models can be used to support decision-making processes around the hydrogen economy in cities. This study presents a holistic model addressing the geospatial modelling of hydrogen demand in urban areas. It proposes a method that integrates a variety of open source data, including geodata, earth observation data and energy data to estimate hydrogen demand top down for the industrial feedstock (steel, ammonia, organic chemistry), process heating, and mobility (buses, trucks, trains, airplanes, ships) sectors. The proposed method can also be extended to different sectors. The method is validated by modelling the hydrogen demand in all German cities and benchmarking it with national studies. This study’s results are within the same range as the results of national studies. For this paper, the method is applied for two case studies in Freiburg im Breisgau and Frankfurt am Main. Applying this method in urban areas shows potential hydrogen demand hotspots in these areas. The model’s results help policymakers and industry stakeholders make informed decisions about the development of hydrogen infrastructure and facilitate the adoption of hydrogen as a low-carbon energy carrier. Future research could explore the temporal aspects of hydrogen demand and the spatial influence of hydrogen demand on future hydrogen production facilities such as electrolysers.
Cost Evaluation Analysis of Genetic Testing and Tailored Adjuvant Imatinib in Patients With Resected High-Risk GI Stromal Tumors: The Brazilian Perspective
Authors: Lopes David Bruna Bianca , Nazareth Aguiar Junior Pedro , Costa e Silva Matheus , Dienstmann Rodrigo , Gil Ferreira Carlos , Serrano César 
Published: October 2023

PURPOSE Mutations of the KIT gene are the molecular hallmark of most GI stromal tumors (GISTs). Imatinib has revolutionized GIST treatment. Adjuvant imatinib for 3 years is the standard of care for high-risk resected GIST. However, the GIST molecular biologic profile has found different responses to this approach. Despite this, genetic testing at diagnosis is not a routine and empirical adjuvant imatinib remains the rule. Barriers to genetic profiling include concerns about the cost and utility of testing. This analysis aims to determine whether targeted genetic testing reduces costs as an ancillary tool for a limited-resource scenario instead of adjuvant empirical imatinib in patients with resected high-risk GIST. METHODS The cost evaluation analysis of molecular testing for GIST was based on the Cost of Preventing an Event (COPE), considering the Number Needed to Treat and the costs of each test compared with the cost of 3-year empirical adjuvant imatinib and real treatment costs (median number of cycles) from the public and private Brazilian Healthcare System's perspective. The analysis compared the costs of the molecular tests (broad next-generation sequencing [NGS], GS Infinity DNA/RNA assay, and targeted NGS: GS Focus GIST and the Fleury GIST Tumor DNA sequencing panel), costs of drug acquisition, considering discounts (imatinib mesylate and Glivec), and the costs of supportive care. RESULTS In both scenarios, public and private, regardless of the use of imatinib or Glivec, tailoring adjuvant treatment reduced costs, irrespective of the number of cycles. The only exception was the combination of the broad NGS test and imatinib in the Public Healthcare System. CONCLUSION The molecularly tailored adjuvant imatinib reduced costs considering the COPE of available NGS tests for both the public and private Brazilian health care systems.
Imperial Gift
Authors: Tran Ann Ngoc 
Published: October 2023

AbstractThis article theorizes and historicizes soap, a medical “gift” distributed by the US military to villages and hamlets in South Vietnam, as a commodity and as an infrastructure in the American war in Vietnam. During the war, soap not only operated as a tool to clean those the US military deemed dirty and uncivilized but also brokered the ideological movement of empire from the nation-state to the occupied regions of the Vietnamese South. Wartime US humanitarianism proffered soap as a counterinsurgent weapon of soft power and as an infrastructural poetic that securitized US empire against the rising tide of communist insurgency. Reading against the hegemonic archival practices that venerate the gifting of soap as benevolent militarism, the article moves to examine the anarchic practice of South Vietnamese black marketeering, which redeployed soap as an illegal market commodity to intercept the movement of US empire and, as a practice that arose in response to wartime capitalism and militarization, allowed natives to command new social relations at the cost of disrupting the Republic of Vietnam’s flows of capital and the United States’ ongoing war campaign. As an informal, opaque, and yet thriving infrastructure of its own, the black market fostered insurgent survival strategies that repurposed military supplies and gifts as versatile commodities, allowing even soap to escape its original containment as a civilizing agent and giving it new uses and meanings.
The Human Tide
Authors: Gao Yuan 
Published: October 2023

Abstract
This article investigates how cultural workers from the 1950s to the 1970s served China’s hydraulic engineering campaign in artworks depicting human resource extraction. Focusing on Tian Han’s drama The Caprice of the Ming Tombs Reservoir (1958) and Jiang Yunchuan’s documentary Red Flag Canal (1970), the article tells two tales of Chinese hydraulic construction to analyze the theatrical and cinematic aesthetics of socialist labor reform and rural industrialization. In China’s history of transforming water from a natural threat to a natural resource, Tian Han and Jiang Yunchuan represent the Chinese cultural workers who used their works to mobilize the masses to navigate the hostile natural environment and overcome technological insufficiency, portraying the body as corporeal machine. This mode of cultural representation went beyond revolutionary culture’s conventional task of reinforcing class consciousness. Instead, it aimed to generate and maintain the energy of the infrastructure builders to change the nature of labor in socialist industrial planning. The Chinese cultural works on hydraulic engineering draw attention to the materiality of the laboring bodies often ignored in current infrastructure scholarship.
Connecting the Countryside
Authors: Yang Yingchuan 
Published: October 2023

Abstract
In the 1950s and 1960s, rural radio networks were erected all across China, operated and maintained by local residents who worked as technicians, correspondents, and broadcasters. This article introduces the radio network as a complex and diverse technological infrastructure for the socialist masses. The content of broadcasting was never uniform; rather, each county, town, village, and even the individual broadcaster had a say in what sounds came out of their loudspeakers. Accordingly, the Chinese socialist soundscape was not only peppered with quotation songs and political slogans but also contained music and traditional opera, useful information, and occasionally the relay of foreign radio stations. Radio networks brought people together as members and active builders of the new society. While the extant historiography understands the socialist masses as a political and social category, this article argues that it was also constructed as a technological one. The socialist citizenry was often defined by its involvement in state-led infrastructure projects such as the radio network; in turn, as people strove to build and run their own radio networks, they spontaneously took part in assembling and buttressing the infrastructure that underpinned the socialist state.
“A Natural History of Logistics” and Other Studio Briefs
Authors: Parikka Jussi 
Published: October 2023

AbstractThis article addresses the question of the planetary through three practices that relate to design and architectural pedagogy and research as well as the broader context of Anthropocene discussions. From Strelka Institute's Terraforming program to the Terra Forma book by Frédérique Aït-Touati, Alexandra Arènes, and Axelle Grégoire and a discussion of the Royal College of Art's architecture program's studio “Something in the Air: Politics of the Atmosphere,” the article focuses on framing of “problem spaces” (Celia Lury's term) through studio briefs as well as experimental visualization and mapping. While discussing methodological underpinnings of planetarity as a problem space, the article mobilizes the neologism “natural history of logistics” to analyze practices of scale in the critical design studio briefs and discourses at the center of the article. The term is pitched as a temporary conceptual anchor for a relation specific to the technological framing of a polyscalar Earth.
Gravity Line–Hip Axis Offset as a Guide for Global Alignment to Prevent Recurrent Proximal Junctional Kyphosis/Failure
Authors: Hyun Seung-Jae , An Sungjae , Park Byoung-Joo , Lee Jae-Koo , Yang Seung Heon , Kim Ki-Jeong 
Published: October 2023

BACKGROUND AND OBJECTIVES:
Proximal junctional kyphosis/failure (PJK/F) is a potentially serious complication after adult spinal deformity (ASD) corrective surgery. Recurrent PJK/F is especially troublesome, necessitating fusion extension and occasionally resulting in irreversible neurological deficits. The gravity line (GL) offers valuable insights into global sagittal balance. This study aims to examine the postoperative GL–hip axis (GL-HA) offset as a critical risk factor for recurrent PJK/F.

METHODS:
We retrospectively reviewed patients with ASD who had undergone revision surgery for initial PJK/F at a single academic center. Patients were categorized into 2 groups: nonrecurrent PJK/F group and recurrent PJK/F group. Demographics, surgical characteristics, preoperative and postoperative parameters of spinopelvic and global alignment, and the Scoliosis Research Society-22 scores were assessed. We examined these measures for differences and correlations with recurrent PJK/F.

RESULTS:
Our study included 32 patients without recurrent PJK/F and 28 patients with recurrent PJK/F. No significant differences were observed in baseline demographics, operative characteristics, or Scoliosis Research Society-22 scores before and after surgery. Importantly, using a cutoff of −52.6 mm from logistic regression, there were considerable differences and correlations with recurrent PJK/F in the postoperative GL-HA offset, leading to an odds ratio of 7.0 (95% CI: 1.94-25.25, P = .003).

CONCLUSION:
Postoperative GL-HA offset serves as a considerable risk factor for recurrent PJK/F in patients with ASD who have undergone revision surgery. Overcorrection, with GL-HA offset less than −5 cm, is associated with recurrent PJK/F. The instrumented spine tends to align the GL near the HA, even at the cost of proximal junction.
Ensino de manejo da dor nas escolas médicas: uma revisão integrativa
Authors: Gondim Andréa Silva , Rocha Caio César Otôni Espíndola , Peixoto Júnior Arnaldo Aires , Peixoto Raquel Autran Coelho 
Published: October 2023

A prevalência de dor na população mundial é alta e há graves complicações relacionadas ao seu manejo inadequado. Lacunas no ensino de manejo da dor aparecem entre as causas do problema. O objetivo deste estudo foi realizar revisão integrativa sobre o ensino de manejo da dor entre estudantes de Medicina. Métodos: No período de novembro de 2022 a janeiro de 2023, foram utilizadas as bases de dados PubMed, LILACS e Scielo para coleta de dados publicados no período entre 2012 e 2022. Utilizaram-se os descritores em Ciências da Saúde (DeCS): “knowledge OR Competence OR Skills”, AND “pain management” AND “medical schools”. Resultados: Foram encontrados 110 estudos nas bases de dados utilizadas. Destes, foram excluídos 88, por não se relacionarem ao tema central, e 14 por serem revisões ou em idioma não inglês, restando 8 para análise. Após análise dos textos, surgiram três eixos temáticos: a) Manejo da dor nos currículos médicos; b) Percepção de alunos e docentes; e c) intervenções no ensino de manejo da dor. Conclusões: Os currículos médicos devem ampliar o ensino de dor de modo integrado em situações clínicas multiprofissionais, para que os alunos estejam preparados para enfrentar não apenas o conhecimento clínico, mas também os desafios profissionais, pessoais e éticos que surgem ao cuidar de pessoas com dor.
Encontro entre quadrinhos e música: as bolinhas de Priscila Farias nas páginas da revista Animal (1988-1991)
Authors: Dos Santos Guilherme Caldas , Queluz Marilda Lopes Pinheiro 
Published: October 2023

A segunda metade da década de 80 foi o período de circulação de um número expressivo de publicações voltadas para o segmento das histórias em quadrinhos (HQs) autorais. Resultantes, em larga medida, do processo de reabertura política iniciado na década anterior, essas HQs representaram uma forte instância de interação com seu público leitor. Foram, ainda, parte do processo dialógico de formulação e materialização de valores implicados numa reorganização da imprensa. Esta procurou manter-se a par das transformações políticas em curso no Brasil ao longo da década de 70 – quando pautas relacionadas à cultura e ao comportamento ganharam relevância no contexto das disputas políticas que iriam resultar no fim da ditadura militar. O objetivo deste texto é refletir sobre as relações culturais entre quadrinhos e música constituídas nas propostas gráficas de Priscila Farias, publicadas na revista Animal. Para isso, foi feito um levantamento de todas as suas resenhas ilustradas, as chamadas "bolinhas", no período de 1988 a 1991, considerando-se o contexto de redemocratização do país. A produção de Priscila Farias destaca-se no suplemento da revista, Mau, representando as mediações construídas com os leitores, com as HQs e com outras manifestações culturais e políticas daquele momento.
Comparative effect of platelet- and mesenchymal stromal cell-derived extracellular vesicles on human cartilage explants using an ex vivo inflammatory osteoarthritis model
Authors: Forteza-Genestra Maria A. , Antich-Rosselló Miquel , Ramis-Munar Guillem , Calvo Javier , Gayà Antoni , Monjo Marta , Ramis Joana M. 
Published: October 2023

AimsExtracellular vesicles (EVs) are nanoparticles secreted by all cells, enriched in proteins, lipids, and nucleic acids related to cell-to-cell communication and vital components of cell-based therapies. Mesenchymal stromal cell (MSC)-derived EVs have been studied as an alternative for osteoarthritis (OA) treatment. However, their clinical translation is hindered by industrial and regulatory challenges. In contrast, platelet-derived EVs might reach clinics faster since platelet concentrates, such as platelet lysates (PL), are already used in therapeutics. Hence, we aimed to test the therapeutic potential of PL-derived extracellular vesicles (pEVs) as a new treatment for OA, which is a degenerative joint disease of articular cartilage and does not have any curative or regenerative treatment, by comparing its effects to those of human umbilical cord MSC-derived EVs (cEVs) on an ex vivo OA-induced model using human cartilage explants.MethodspEVs and cEVs were isolated by size exclusion chromatography (SEC) and physically characterized by nanoparticle tracking analysis (NTA), protein content, and purity. OA conditions were induced in human cartilage explants (10 ng/ml oncostatin M and 2 ng/ml tumour necrosis factor alpha (TNFα)) and treated with 1 × 109 particles of pEVs or cEVs for 14 days. Then, DNA, glycosaminoglycans (GAG), and collagen content were quantified, and a histological study was performed. EV uptake was monitored using PKH26 labelled EVs.ResultsSignificantly higher content of DNA and collagen was observed for the pEV-treated group compared to control and cEV groups. No differences were found in GAG quantification nor in EVs uptake within any treated group.ConclusionIn conclusion, pEVs showed better performance than cEVs in our in vitro OA model. Although further studies are needed, pEVs are shown as a potential alternative to cEVs for cell-free regenerative medicine.Cite this article: Bone Joint Res 2023;12(10):667–676.