bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of replacement ratio and particle size distribution of recycled coarse aggregate on mechanical properties of concrete designed using equivalent mortar volume method
Authors: Wang Qinghe , Liu Yuting , Wang Dong 
Published: November 2022

AbstractThe equivalent mortar volume (EMV) mixing method has been proposed to prepare recycled aggregate concrete (RAC) with comparable mechanical properties to those of reference natural aggregate concrete (NAC). Previous studies primarily focused on the mechanical properties of EMV concrete with a single replacement ratio of recycled coarse aggregate (RCA). This paper investigates how the mechanical properties of EMV concrete vary with the replacement ratios and particle size distributions of RCA. Five different RCA replacement ratios and two RCA particle size distributions were assessed. A material demand coefficient was principally proposed to quantify the contribution of the EMV mixing method to reduce the environmental impact; the maximum RCA replacement ratio was suggested to obtain sufficient workability of EMV concrete using an effective sand ratio; a drying shrinkage model was theoretically proposed for EMV concrete accounting for the drying shrinkage of residual mortar. The obtained results indicated that the compressive strength and elastic modulus properties of EMV concrete decreased with increasing RCA replacement ratios; using the effective sand ratio of EMV concrete, comparable mechanical properties to those of reference NAC could be obtained for EMV concrete; the proposed shrinkage model was consistent with the available experimental data.
Long non‐coding RNA TDRG1 aggravates lung cancer stemness by binding to Sox2mRNA
Authors: Lu You , Cheng Jing , Mao Qixing , Wang Zhongqiu , Wei Qiang 
Published: November 2022

AbstractThe roles of long non‐coding RNA TDRG1 have been revealed in several tumors, especially its roles in CSC progression have been recently elucidated; However, its effects in lung CSC progression have not been revealed. In the present study, we collected 3D non‐adherent spheres as the CSC model to measure lncRNA TDRG1 level in lung CSC and the parental lung cancer cells, and found that TDRG1 level was significantly upregulated in lung CSCs compared to that of parental lung cancer cells. Then we constructed the lung CSCs with or without TDRG1 stable knockdown and lung cancer cells with or without TDRG1 stable overexpression. It was found that TDRG1 positively regulated lung cancer stemness. Mechanistically, we identified that TDRG1 directly bound to Sox2 mRNA, which is a critical stemness regulator, enhanced its mRNA stability, and thus increased Sox2 expression. Indeed, we demonstrated that TDRG1 aggravated lung cancer stemness dependent on Sox2 expression. Thus, this study suggests that TDRG1 is a critical stemness promoter of lung cancer cells by acting as a stabilizer for Sox2 mRNA.
Nitrenium Salts in Intramolecular Lewis Pairs
Authors: Avigdori Idan , Singh Kuldeep , Pogoreltsev Alla , Kaushansky Alexander , Fridman Natalia , Gandelman Mark 
Published: November 2022

AbstractHerein we present the synthesis, full characterization and systematic investigation of intramolecular Lewis pairs incorporating Lewis acidic N‐heterocyclic nitrenium salts linked to phosphine Lewis bases. Intramolecular Lewis adducts and frustrated Lewis pairs (FLPs) were obtained, depending on different modification to the molecular structure. Several different aryl and alkyl groups were utilized as substituents on the core naphthotriazinium and phosphine components, which were linked by an alkyl chain of variable length. Whereas an intermolecular Lewis adduct of nitrenium with a relatively weak phosphine donor (Ph2PMe) was not observed, the corresponding intramolecular version (Ph2PR) was detected both in a dissociated Lewis pair form and as a coordinated Lewis adduct simultaneously. Additionally, one set of modifications led to a unique rearrangement of the nitrenium core, resulting in a fused heterocycle. The mechanism of this rearrangement was analyzed computationally.
Reconciliation and Recognition in the Oslo Accords
Authors: Ricarte Joana 
Published: November 2022

AbstractThis chapter analyzes the brief, although game-changing, Oslo Era. This chapter argues that the Oslo period has operated a rupture in the already existing tendency of dehumanizing the ‘other’, as discourses and narratives connected to dehumanization in the elite level deeply impacted perceptions on the societal level, creating the environment for the positive transformation of the conflict. However, its conclusions point to the pernicious impact of the disappointment connected to the feelings of loss of expectations and hope, as well as the emergence of new narratives about blames and responsibilities, which have added new grievances to the already existing ones.
European Structural and Investment Funds 2021–2027: Prediction Analysis Based on Machine Learning Models
Authors: Santos Victor 
Published: November 2022

ABSTRACTThis research presents several machine learning algorithms and prediction models to anticipate the European Structural and Investment Funds (ESIF) application in different European Union (EU) countries. These analyses start with data training from 2014 to 2020 ESIF, to test and predict the application of the future ESI Funds for 2021–2027. We deliver an analysis focused on the priorities of each fund, highlighting the differences between the programs in different time periods. In the framework of the European Regional Development Fund (ERDF), we will specifically address the assessment of the following themes: support innovation of small and medium-sized businesses, to greener, low-carbon, and resilient projects with enhanced mobility. In what concerns the European Social Fund (ESF), we will evaluate projects that promote and increase the EU’s employment, social, education, and skills policies, including structural reforms in these areas. Regarding the cohesion funds (CF), we will be targeting the improvements between the two ESIFs, looking at projects in the field of environment and trans-European networks in the area of transport infrastructure (TEN-T). In summary, we will be looking at the future of ESIF through the glasses of artificial intelligence.
Are ERDF Devoted to Boosting ICT in SMEs Inefficient? Further Insights Through the Joint Use of DEA with SFA Models
Authors: Henriques Carla , Viseu Clara 
Published: November 2022

AbstractWe employ a three-stage data envelopment analysis (DEA) model coupled with Stochastic Frontier Analysis (SFA) by using data made freely available by the European Commission, to evaluate the procedural efficiency of 51 OPs from 16 countries committed to fostering the adoption of Information and Communication Technologies (ICT) in small mid-sized enterprises (SMEs). We depart from the results obtained in the previous Chapter with two DEA models, specifically the Slack Based-Measure (SBM) and the Weighted Russel Directional Distance (WRDD) model. Firstly, we adjust the input and output factors through the SFA by removing the influence of environmental factors and statistical noise. Secondly, we instantiate the previous DEA models with adjusted factors, to compute new efficiency factors. All in all, we observed that by removing these contextual effects, nearly 27% of the OPs (14) vs. 30% of the OPs (16) using the SBM and the WRDD approaches, respectively, achieved efficient procedural outcomes, compared to 20 percent (10) without the consideration of these factors. The OP “Multi-regional Spain - ERDF” is commonly considered a benchmark regardless of the model and contextual environment. The ‘number of operations supported’ is the measure that necessitates more consideration, with or without the elimination of environmental factors, irrespective of the DEA model used. Our findings imply that more developed areas with a higher number of ICT specialists tend to have lower use of ERDF funds committed to promoting ICT adoption in SMEs. These findings might be attributable to administrative practices and SMEs’ failure to manage the complicated technicalities involved in submitting and executing European Regional Development Fund (ERDF) project proposals. As a result, it is critical to provide the extra help that reduces managerial requirements while also meeting the demands of SMEs.
Multiple Impacts of Energy Efficiency Technologies in Portugal
Authors: Tenente Marcos , Henriques Carla , Gomes Álvaro , da Silva Patrícia Pereira , Trigo António 
Published: November 2022

AbstractPortuguese programs aimed at fostering Energy Efficiency (EE) measures often rely on cost–benefit approaches only considering the use phase and neglecting other potential impacts generated. Therefore, this work suggests a novel methodological framework by combining Hybrid Input–Output Lifecycle Analysis (HIO-LCA) with the Portuguese seasonal method for computing the households’ energy needs. A holistic assessment of the energy, economic, environmental, and social impacts connected with the adoption of EE solutions is conducted aimed at supporting decision-makers (DMs) in the design of suitable funding policies. For this purpose, 109,553 EE packages have been created by combining distinct thermal insulation options for roofs and façades, with the replacement of windows, also considering the use of space heating and cooling and domestic heating water systems. The findings indicate that it is possible to confirm that various energy efficiency packages can be used to achieve the best performance for most of the impacts considered. Specifically, savings-to-investment ratio (SIR), Greenhouse gases (GHG), and energy payback times (GPBT and EPBT) present the best performances for packages that exclusively employ extruded polystyrene (XPS) for roof insulation (packages 151 and 265). However, considering the remaining impacts created by the investment in energy efficiency measures, their best performances are obtained when roof and façades insulation is combined with the use of space heating and cooling and DHW systems to replace the existing equipment. If biomass is assumed to be carbon–neutral, solution 18,254 yields the greatest reduction in GHG emissions. Given these trade-offs, it is evident that multiobjective optimization methods employing the impacts and benefits assessed are crucial for helping DMs design future EE programs following their preferences.
Light stringy states and the g − 2 of the muon
Authors: Anastasopoulos Pascal , Niederwieser Elias , Rondeau François 
Published: November 2022

Abstract
In this work, we evaluate the contributions to the anomalous magnetic moment of the muon ((g − 2)μ) coming from light stringy states in a D-brane semi-realistic configuration. A scalar which couples only to the muon can have a mass sufficiently light to provide a significant contribution to the (g − 2)μ. This scenario can arise in intersecting D-brane models, where such light scalars correspond to the first stringy excitations of an open string stretched between two D-branes intersecting with a very small angle. In this article, we show that there is a region in the space of the geometric parameters of the internal manifold where such scalar light stringy states can explain (part) of the observed discrepancy in the (g − 2)μ. In a low string scale framework with Ms ≳ 10 TeV, we show that an excited Higgs with mass $$ \mathcal{O} $$
O
(250 MeV), living in an intersection with an angle of order $$ \mathcal{O} $$
O
(10−10), can provide a significant contribution of one-tenth of the (g − 2)μ discrepancy. This leads to a lower bound for the compact dimension where the branes intersect of order $$ \mathcal{O} $$
O
(10−8 GeV−1). We also study patterns in D-brane configurations that realize our proposal, both in three and four stacks models.
A twistorial description of the IKKT-matrix model
Authors: Steinacker Harold C. , Tran Tung 
Published: November 2022

Abstract
We consider the fuzzy 4-sphere $$ {S}_N^4 $$

S
N
4

as a background in the IKKT matrix model, and explore the relation between $$ {S}_N^4 $$

S
N
4

and fuzzy twistor space in the semi-classical limit. A novel description for the IKKT-matrix model in terms of spinorial indices is given, which is reminiscent of $$ \mathcal{N} $$
N
= 4 super-symmetric Yang-Mills (SYM) in 4d. On fuzzy twistor space, the interactions of the IKKT model are of gravitational type. The higher-spin (HS) gauge theory emerging in this limit from the IKKT model, denoted as HS-IKKT, on fuzzy twistor space is shown to be a higher-spin extension of $$ \mathcal{N} $$
N
= 4 SYM, with vertices that have more than two derivatives. We obtain its (Euclidean) spacetime action using the Penrose transform. Although this is a gravitational theory, it shares many features with the higher-spin extensions of Yang-Mills in 4d flat space obtained in [1, 2]. The tree-level amplitudes of the HS-IKKT are studied in the semi-classical flat limit. The self-dual gauge sector of the IKKT model is obtained by dropping some parts of the cubic- and the quartic interactions, which is shown to reduce to a $$ \mathcal{BF} $$
BF
-type action on commutative deformed projective twistor space.
The connected wedge theorem and its consequences
Authors: May Alex , Sorce Jonathan , Yoshida Beni 
Published: November 2022

Abstract
In the AdS/CFT correspondence, bulk causal structure has consequences for boundary entanglement. In quantum information science, causal structures can be replaced by distributed entanglement for the purposes of information processing. In this work, we deepen the understanding of both of these statements, and their relationship, with a number of new results. Centrally, we present and prove a new theorem, the n-to-n connected wedge theorem, which considers n input and n output locations at the boundary of an asymptotically AdS2+1 spacetime described by AdS/CFT. When a sufficiently strong set of causal connections exists among these points in the bulk, a set of n associated regions in the boundary will have extensive-in-N mutual information across any bipartition of the regions. The proof holds in three bulk dimensions for classical spacetimes satisfying the null curvature condition and for semiclassical spacetimes satisfying standard conjectures. The n-to-n connected wedge theorem gives a precise example of how causal connections in a bulk state can emerge from large-N entanglement features of its boundary dual. It also has consequences for quantum information theory: it reveals one pattern of entanglement which is sufficient for information processing in a particular class of causal networks. We argue this pattern is also necessary, and give an AdS/CFT inspired protocol for information processing in this setting.Our theorem generalizes the 2-to-2 connected wedge theorem proven in [3]. We also correct some errors in the proof presented there, in particular a false claim that existing proof techniques work above three bulk dimensions.
Generalized symmetry breaking scales and weak gravity conjectures
Authors: Córdova Clay , Ohmori Kantaro , Rudelius Tom 
Published: November 2022

Abstract
We explore the notion of approximate global symmetries in quantum field theory and quantum gravity. We show that a variety of conjectures about quantum gravity, including the weak gravity conjecture, the distance conjecture, and the magnetic and axion versions of the weak gravity conjecture can be motivated by the assumption that generalized global symmetries should be strongly broken within the context of low-energy effective field theory, i.e. at a characteristic scale less than the Planck scale where quantum gravity effects become important. For example, the assumption that the electric one-form symmetry of Maxwell theory should be strongly broken below the Planck scale implies the weak gravity conjecture. Similarly, the violation of generalized non-invertible symmetries is closely tied to analogs of this conjecture for non-abelian gauge theory. This reasoning enables us to unify these conjectures with the absence of global symmetries in quantum gravity.
Erfahrungen von Menschen mit Fluchtgeschichte bei der Inanspruchnahme der Gesundheitsversorgung in Deutschland – Erkenntnisse einer qualitativen Studie
Authors: Nowak Anna Christina , Hornberg Claudia 
Published: November 2022

Zusammenfassung
Hintergrund
Menschen mit Fluchtgeschichte sind mit einer Vielzahl von rechtlichen, strukturellen, administrativen, kulturellen und sprachlichen Barrieren im Zugang zur Gesundheitsversorgung konfrontiert. Derzeit liegen jedoch wenig Daten zu gesundheitlichen Bedarfen und Bedürfnissen von Geflüchteten vor. Insbesondere ihre subjektiven Erfahrungen im Zugang zur Gesundheitsversorgung sind bisher wenig berücksichtigt worden.

Ziel der Arbeit
In diesem Beitrag sollen die subjektiven Erfahrungen von Menschen mit Fluchtgeschichte beim Zugang zur Gesundheitsversorgung und bei deren Nutzung beschrieben werden. Strategien bei der Bewältigung von Herausforderungen werden dargestellt.

Methoden
Die Rekrutierung der InterviewpartnerInnen erfolgte anhand von quantitativen Querschnittsdaten, die im Rahmen einer Studie zur Gesundheit von Geflüchteten (FlüGe-Gesundheitsstudie) erhoben wurden. Personen, die einer erneuten Kontaktaufnahme zugestimmt hatten, wurden telefonisch kontaktiert. Es wurde eine im Hinblick auf Alter, Geschlecht, Nationalität, Gesundheitszustand und Inanspruchnahmeverhalten heterogene Teilstichprobe (n = 18) mittels dolmetschergestützter problemzentrierter Interviews nachbefragt. Die Datenauswertung erfolgte in einem deduktiv-induktiven Prozess.

Ergebnisse und Diskussion
Die wenig migrationssensible Gesundheitsversorgung von Menschen mit Fluchtgeschichte ist geprägt durch Sprachbarrieren, Orientierungslosigkeit, Ablehnungserfahrungen, Fehlbehandlungen und strukturelle Barrieren. Fremdheitserfahrungen in und mit dem Gesundheitssystem können dazu führen, dass die Versorgung nicht (mehr) oder nur verzögert in Anspruch genommen wird. Gleichzeitig werden individuelle Strategien von Geflüchteten und VersorgerInnen angewendet, um den genannten Herausforderungen zu begegnen.
Einfluss von Osteoporose auf physische Leistungsparameter von Personen im mittleren und höheren Lebensalter – eine Querschnittstudie
Authors: Schröder Guido , Flachsmeyer Dirk , Bende Anne , Andresen Julian Ramin , Andresen Reimer , Schober Hans-Christof 
Published: November 2022

Zusammenfassung
Hintergrund
PatientInnen im höheren Lebensalter, die an Osteoporose (OP) leiden, haben zusätzlich eine verminderte Muskelmasse und Muskelkraft – bekannt als Sarkopenie. Dies führt zu Funktionseinschränkungen sowie einem steigenden Sturz- und Verletzungsrisiko. Physische Leistungsparameter, wie Griff- und Rumpfkraft einerseits und die Gleichgewichtsfähigkeit andererseits, geben Auskunft über den neuromuskulären Allgemeinzustand und stellen einen Indikator der körperlichen Leistungsfähigkeit des alternden Menschen dar. Inwieweit stattgehabte osteoporotische Wirbelkörperfrakturen (VFs) zu einer Einschränkung der körperlichen Leistungsfähigkeit führen, wurde bisher nicht ausreichend untersucht.

Material und Methoden
An der vorliegenden klinischen Untersuchung nahmen 118 Personen im Durchschnittsalter von 71,5 ± 9 Jahren teil. Es wurden zwei Gruppen gebildet – eine OP (58 PatientInnen) und eine Vergleichsgruppe (VG) (60 PatientInnen). In Subgruppenanalysen wurden OP-PatientInnen mit VFs und ohne VFs (0VFs) betrachtet. Für alle lag ein körperlicher Status mit Ergebnissen zu Handgriffkraft (HGS), Chair-Rising-Test (CRT), Tandemstand (TS), Tandemgang (TG) und Einbeinstand (EBS) vor. Alle erhobenen Daten wurden mit dem statistischen Softwarepaket SPSS, Version 23.0 analysiert.

Ergebnisse
Zwischen den Gruppen OP und VG bestand hinsichtlich der Parameter HGS, CRT, TG, TS und EBS kein signifikanter Unterschied (p > 0,05). In der Subgruppenanalyse wiesen OP-PatientInnen mit VFs im Vergleich zu welchen mit 0 VFs eine geringere HGS auf (VFs: 24,3 ± 10,2 kg vs. 0 VFs: 29,7 ± 9,5 kg, p = 0,026). Der TS (VFs: 7,8 ± 3,2 s vs. 0 VFs: 9,5 ± 1,8 s, p = 0,008) wurde von OP-PatientInnen mit 0 VFs länger gehalten. Ihnen war es im TG möglich, mehr Schritte zu balancieren (VFs: 4,8 ± 3,0 vs. 0 VFs: 6,7 ± 2,4, p = 0,011). In einer Regressionsanalyse zeigten sich die Körpergröße, das Geschlecht und das Alter als unabhängige Einflussfaktoren auf die HGS (p < 0,001).

Schlussfolgerung
Das PatientInnenalter, die Konstitution und das Geschlecht nehmen einen relevanten Einfluss auf die HGS, wobei die Ausgangsbedingungen nach diagnostizierter OP in dieser Altersgruppe auf vergleichbarem Niveau liegen. Bei einer Subgruppe von OP-PatientInnen mit VFs besteht ein enger Zusammenhang zwischen Knochen und Muskulatur mit einer zunehmenden Verschlechterung des muskuloskelettalen Systems. Zur Prophylaxe einer Osteosarkopenie erscheint ein frühzeitiges Training sinnvoll.

Graphic abstract
A literature review on the impact of digitalisation on management control
Authors: Fähndrich Jochen 
Published: November 2022

AbstractDigitalisation affects management control (MC). It leads to changes in the way MC activities are organised, performed and analysed. Companies of all industries, locations and sizes have to adapt their MC to digital circumstances, starting with the understanding and delimitation of MC tasks, through the modified application of MC instruments and the consideration of behavioural aspects of MC, to the organisation of the MC function within the company. This paper presents a systematic review of the literature according to Tranfield et al. (Br J Manag 14:207–222, 2003), focusing on the impact of digitalisation on MC. A comprehensive overview of scientific literature is provided by reviewing 166 highly rated accounting journals (based on multiple international journal ratings) and analysing 116 articles from January 2000 to August 2022. Based on the MC framework developed by Guenther (J Manag Control 23:269–290, 2013), the identified studies are categorised into the following research dimensions: tasks, instruments, organisation and behavioural aspects. Multiple studies highlight the continuous development of the MC function under the impact of digitalisation, including the extension of MC tasks, the adaptation of existing MC instruments and creation of new MC instruments, positive and negative behavioural aspects of digitalisation on MC and the establishment of new MC organisation models. In addition to the qualitative content analysis, this literature review also includes an analysis of the methods applied and illustrates their changes over time. This study reveals research gaps in relation to the current MC research and presents potential starting points for future research.