bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numéro 165 - juillet 2021
Authors: Attanasi Gautier , Baurin Arno , Bodart Vincent , Courtoy François , Dallemagne Guillaume , Lachapelle Nathan , Ounnas Alexandre , Pourtois Mathilde , Sauvenier Mathieu 
Published: July 2021

Après avoir connu un coup d’arrêt au dernier trimestre 2020, la reprise de l’économie belge apparaît à nouveau bien enclenchée depuis le début de l’année en cours. Entre décembre 2020 et mars 2021, l’économie belge a progressé de 1 % et, selon nos prévisions, sa progression fut de 1,3 % au deuxième trimestre.
La croissance de l’économie belge devrait encore se renforcer durant la seconde partie de l’année. L’environnement économique international est à nouveau dynamique, tandis que la couverture vaccinale a fortement augmenté en Belgique, autorisant la réouverture de la plupart des activités économiques qui, il y a peu, étaient encore sous le coup des restrictions sanitaires. Dans ce contexte, la confiance des ménages et des entreprises belges a connu un rebond spectaculaire au cours des derniers mois. Pour autant que la situation sanitaire demeure sous contrôle, le redressement de l’économie belge se poursuivrait en 2022, mais à un rythme plus modéré.
Selon ces perspectives, l’économie belge progresserait de 5,8 % en 2021 et de 3,6 % en 2022. Elle retrouverait son niveau d’avant crise au dernier trimestre 2021 mais, fin 2022, le niveau du PIB serait encore inférieur d’environ 1,5 % par rapport au niveau auquel il se serait situé sans l’éclatement de la crise économique et sanitaire. Des créations d’emplois significatives sont attendues sur la période de projection mais l’amélioration du chômage serait plus modeste.
Résumé des prévisions pour la Belgique

L'économie belge devrait croître de 5,8% en 2021 et 3,6% en 2022.
L'emploi augmenterait d'environ 32.000 unités en 2021 et 18.000 unités en 2022.
Le nombre de demandeurs d'emploi diminuerait de 10.000 unités en 2021, mais il augmenterait de 9.000 unités en 2022.
L'inflation générale des prix à la consommation s'élèverait de 1,6% en 2021 et 2,0% en 2022.
Le déficit budgétaire des administrations publiques atteindrait 6,8% en 2021 et 3,8% en 2022.
Rank-one isometries of CAT(0) cube complexes and their centralisers
Authors: Genevois Anthony 
Published: July 2021

Abstract
If G is a group acting geometrically on a CAT(0) cube complex X and if g ∈ G has infinite order, we show that exactly one of the following situations occurs: (i) g defines a rank-one isometry of X; (ii) the stable centraliser SCG
(g) = {h ∈ G ∣ ∃ n ≥ 1, [h, gn
] = 1} of g is not virtually cyclic; (iii) Fix
Y
(gn
) is finite for every n ≥ 1 and the sequence (Fix
Y
(gn
)) takes infinitely many values, where Y is a cubical component of the Roller boundary of X which contains an endpoint of an axis of g. We also show that (iii) cannot occur in several cases, providing a purely algebraic characterisation of rank-one isometries.
The generating rank of a polar Grassmannian
Authors: Cardinali Ilaria , Giuzzi Luca , Pasini Antonio 
Published: July 2021

AbstractIn this paper we compute the generating rank ofk-polar Grassmannians defined over commutative division rings. Among the new results, we compute the generating rank ofk-Grassmannians arising from Hermitian forms of Witt indexndefined over vector spaces of dimensionN> 2n. We also study generating sets for the 2-Grassmannians arising from quadratic forms of Witt indexndefined overV(N, 𝔽q) forq= 4, 8, 9 and 2n≤N≤ 2n+ 2. We prove that forN> 6 and anisotropic defect (polar corank)d≠ 2 they can be generated over the prime subfield, thus determining their generating rank.
An opportunity to emphasize the relevance of laboratory medicine
Authors: Santamaría González María , Ruiz Mínguez María Ángels , Arrebola Ramírez María Monsalud , Filella Pla Xavier , Torrejón Martínez María José , Morell García Daniel , Castaño López Miguel Ángel , Allué Palacín Juan Antonio , Albaladejo Otón María Dolores , Giménez Gómez Nuria 
Published: July 2021

Abstract

Objectives
Clinical practice guidelines (CPGs) are recommendations based on a systematic review of scientific evidence that are intended to help healthcare professionals and patients make the best clinical decisions. CPGs must be evidence-based and are designed by multidisciplinary teams. The purpose of this study is to assess the topics related to the clinical laboratory addressed in CPGs and evaluate the involvement of laboratory professionals in the CPG development process.

Methods
A total of 16 CPGs recommended by the Spanish Society of Laboratory Medicine and/or retrieved from PubMed-Medline were included. A review of the information provided in CPGs about 80 topics related to the clinical laboratory was performed. The authorship of laboratory professionals was assessed.

Results
On average, the 16 CPGs addressed 49% (standard deviation [SD]: 11%) of the topics evaluated in relation to the clinical laboratory. By order of frequency, CPGs contained information about 69% of postanalytical variables (SD: 20%); 52% of preanalytical variables (SD: 11%); and 43% of the analytical variables studied (SD: 18%). Finally, half the CPGs included a laboratory professional among its authors.

Conclusions
CPGs frequently failed to provide relevant laboratory-related information. Laboratory professionals were co-authors in only half the CPGs. There is scope for improvement, and laboratory professionals should be included in multidisciplinary teams involved in the development of CPGs.
A novel LSSVM-L Hammerstein model structure for system identification and nonlinear model predictive control of CSTR servo and regulatory control
Authors: Naregalkar Akshaykumar , Durairaj Subbulekshmi 
Published: July 2021

AbstractA continuous stirred tank reactor (CSTR) servo and the regulatory control problem are challenging because of their highly non-linear nature, frequent changes in operating points, and frequent disturbances. System identification is one of the important steps in the CSTR model-based control design. In earlier work, a non-linear system model comprises a linear subsystem followed by static nonlinearities and represented with Laguerre filters followed by the LSSVM (least squares support vector machines). This model structure solves linear dynamics first and then associated nonlinearities. Unlike earlier works, the proposed LSSVM-L (least squares support vector machines and Laguerre filters) Hammerstein model structure solves the nonlinearities associated with the non-linear system first and then linear dynamics. Thus, the proposed Hammerstein’s model structure deals with the nonlinearities before affecting the entire system, decreasing the model complexity and providing a simple model structure. This new Hammerstein model is stable, precise, and simple to implement and provides the CSTR model with a good model fit%. Simulation studies illustrate the benefit and effectiveness of the proposed LSSVM-L Hammerstein model and its efficacy as a non-linear model predictive controller for the servo and regulatory control problem.
Cenozoic paleostress field of tectonic evolution in Qaidam Basin, northern Tibet
Authors: Xu Shiyang , Guo Jianming , Fan Hailong , Liu Xiang 
Published: July 2021

Abstract
This article analyzes the stress fields in the Qaidam Basin since the entire Cenozoic using finite element numerical simulations. The stress fields are investigated by analyzing tectonic joints and the GPS velocity field in the basin. The relationship between the stress field patterns and the tectonic activity of the basin was discussed. Based on previous research on the uplift of the Tibetan Plateau, five stages of the tectonic evolution of the Qaidam Basin are modeled. The simulation results show that the stress trajectories in the Oligocence and the Pliocene–Quaternary were similar. In the Oligocence, the stress trajectories in the basin changed significantly and were mainly controlled by the compressional stress on the southern boundary in the initial stage. As the compressional stress on the northern boundary of the basin gradually increased, the compressional stress on the southern and northern boundaries had equal effects in the intermediate stage, and the compressional stress on the northern boundary mainly controlled the stress trajectories in the late stage. During the uplift of the Tibetan Plateau, the stress trajectories in the Qaidam Basin experienced an apparent reversal. The stress trajectories of the internal basin rotated clockwise from NE–SW to NW–SE in the Oligocence and which gradually changed to counterclockwise from NW–SE to NE–SW in the Miocene and recovered to clockwise from NE–SW to NW–SE in the Pliocene–Quaternary.
The Polymer Film Casting Process – An Overview
Authors: Demay Y. , Agassant J. F. 
Published: July 2021

Abstract
Cast film extrusion allows producing technical polymer films for packaging and coating applications. Different kinds of defects may be observed. For packaging applications, the challenge is to obtain very thin films in stable conditions at the highest throughput. For coating applications, the challenge is to master the film width reduction (called neck-in) and the induced non-uniform film thickness (called dog-bone defect). Well instrumented experiments point out the influence of the polymer and of the processing conditions on the occurrence of these defects. Numerical models of increasing complexity allow capturing the main experimental features and this makes possible to propose technological solutions to delay or even to suppress defects occurrence.
Composites of Cysteamine Functionalised Graphene Oxide and Polypropylene
Authors: Abbas S. S. , McNally T. 
Published: July 2021

Abstract
Cysteamine functionalised reduced graphene oxide (rGO) was grafted to polypropylene-graft-maleic anhydride (PP-g-MA) and subsequently melt blended with PP. The covalent bridging of rGO to PP-g-MA via the cysteamine molecule and co-crystallization are routes to promoting interfacial interactions between rGO and the PP matrix. A rheological percolation threshold was achieved for a nanofiller loading between 3 wt% and 5 wt%, but none detected for the composites prepared with un-functionalized rGO. At low loadings (0.1 wt%), functionalized rGO is well dispersed in the PP matrix, an interconnecting filler-filler, polymer-filler and polymer-polymer network is formed, resulting in increased tensile toughness (1 500%) and elongation at break (40%) relative to neat PP. Irrespective of whether the rGO was functionalised or not, it had a significant effect on the crystallization behavior of PP, inducing heterogeneous nucleation, increasing the crystallisation temperature (Tm) of PP by up to 10°C and decreasing the crystalline content (Xc) by ∼30% for the highest (5 wt%) filler loading. The growth of the monoclinic a-phase of PP is preferred on addition of functionalised rGO and b crystal growth suppressed.
Ontological Indifference of Theories and Semantic Primacy of Sentences
Authors: Greimann Dirk 
Published: July 2021

Abstract
In his late philosophy, Quine generalized the structuralist view in the philosophy of mathematics that mathematical theories are indifferent to the ontology we choose for them. According to his ‘global structuralism’, the choice of objects does not matter to any scientific theory. In the literature, this doctrine is mainly understood as an epistemological thesis claiming that the empirical evidence for a theory does not depend on the choice of its objects. The present paper proposes a new interpretation suggested by Quine’s recently published Kant Lectures from 1980 according to which his global structuralism is a semantic thesis that belongs to his theory of ontological reduction. It claims that a theory can always be reformulated in such a way that its truth does not presuppose the existence of the original objects, but only of some objects that can be considered as their proxies. Quine derives this claim from the principle of the semantic primacy of sentences, which is supposed to license the ontological reductions he uses to establish his global structuralism. It is argued that these reductions do not actually work because they do not account for some hidden ontological commitments that are not detected by his criterion of ontological commitment.
Broadband and ultrafast all-optical switching based on transition metal carbide
Authors: Wang Cong , Gao Lingfeng , Chen Hualong , Xu Yiquan , Ma Chunyang , Yao Haizi , Song Yufeng , Zhang Han 
Published: July 2021

Abstract
Ultrafast all-optical switches have attracted considerable attention for breaking through the speed limitation of electric devices. However, ultrafast and high-efficiency all-optical switches based on two-dimensional (2D) materials can be achieved due to their strong nonlinear optical response and ultrafast carrier dynamic. For this reason, we propose the pump-probe method to achieve an ultrafast optical switcher with a response time of 192 fs and a switching energy of 800 nJ by using transition metal carbide (Nb2C). The response time and switching energy are far smaller than that of the all-optical device based on the saturable absorption effect of 2D materials. It is believed that the Nb2C-based all-optical switch provides a novel idea to achieve a high-performance all-optical device and has the potential for application in high-speed photonics processing.
Effect of storage time and temperature on dissolved state of cellulose in TBAH-based solvents and mechanical property of regenerated films
Authors: Li Wei , Tan Ling , Fan Qiandan , Wei Wei , Zhou Zuowan 
Published: July 2021

Abstract
Storage of cellulose solution can be practically ineluctable before it is manufactured into various regenerated products (e.g., fibers, films), especially in the case of industrial production. Therefore, it is necessary to evaluate the effect of storage time and temperature on the dissolved state of cellulose in the interested TBAH-based solvents (including TBAH/H2O, TBAH/H2O/DMSO, TBAH/H2O/Urea), as well as on the mechanical property of the relevant regenerated products (films were prepared in this work for the evaluation). The dissolved state of cellulose in these solvents along with storage has been analyzed with the polarized light microscope photographs and Stormer viscosity. Focus on the interested TBAH/H2O/DMSO solvent, the effect of storage time and temperature on the solution viscosity, and degree of polymerization of cellulose have been discussed. Critical storage time for different storing temperature has been determined, after where significant cellulose degradation happens. A series of regenerated cellulose films with storage time ranging from 0 to 200 h have been prepared. The optimal storage time and strengthening mechanism for cellulose films regenerated from the solution of cellulose/TBAH/H2O/DMSO have been discussed. This work can provide reference about storage time and temperature of cellulose/TBAH/H2O/DMSO, especially for the production of pilot-scale, etc.
Elections, Civic Trust, and Digital Literacy: The Promise of Blockchain as a Basis for Common Knowledge
Authors: Alfano Mark 
Published: July 2021

Abstract
Few recent developments in information technology have been as hyped as blockchain, the first implementation of which was the cryptocurrency Bitcoin. Such hype furnishes ample reason to be skeptical about the promise of blockchain implementations, but I contend that there’s something to the hype. In particular, I think that certain blockchain implementations, in the right material, social, and political conditions, constitute excellent bases for common knowledge. As a case study, I focus on trust in election outcomes, where the ledger records not financial transactions but vote tallies. I argue that blockchain implementations could foster warranted trust in vote tallies and thereby trust in the democratic process. Finally, I argue that if the promise of blockchain implementations as democratic infrastructure is to be realized, then democracies first need to ensure that these material, social, and political conditions obtain.
The Need for Speed – Technological Acceleration and Inevitabilism in Recent Danish Digitalization Policy Papers
Authors: Vestergaard Mads 
Published: July 2021

Abstract
The article explores whether sociotechnical imaginaries of digitalization as inevitable accelerating development can be traced in Denmark’s official policy papers concerning digitalization 2015–2020. It identifies imperatives of speed, acceleration and agility equal to what has been described as a corporate data imaginary as well as tropes of an imaginary of the fourth industrial revolution and inevitable exponential technological development and disruption. The empirical analysis discovers a shift in the studied period mid-2018, before which inevitabilism is prominent and after which the focus on non-economic values increases and the aim of influencing the development, instead of adapting to it, emerges. The article then addresses how imperatives of acceleration and narratives of inevitabilism may be considered problematic from a democratic point of view employing Hartmut Rosa’s critical diagnosis of the acceleration society and the notion of discursive closure. Finally, it discusses the empirical findings in light of technological determinism and constructivism inherent in the notion of sociotechnical imaginaries and introduces a sociotechnical selectionist theory allowing both for human agency in technological development while also providing a mechanism for explaining the emergence of law-like technological trends, as Moore’s Law, at macro level.
Material-removing machining wastes as a filler of a polymer concrete (industrial chips as a filler of a polymer concrete)
Authors: Kępczak Norbert , Rosik Radosław , Urbaniak Mariusz 
Published: July 2021

Abstract
The paper presents an impact of the addition of industrial machining chips on the mechanical properties of polymer concrete. As an additional filler, six types of industrial waste machining chips were used: steel fine chips, steel medium chips, steel thick chips, aluminium fine chips, aluminium medium chips, and titanium fine chips. During the research, the influence of the addition of chips on the basic parameters of mechanical properties, i.e., tensile strength, compressive strength, splitting tensile strength, and Young’s modulus, was analyzed. On the basis of the obtained results, conclusions were drawn that the addition of chips from machining causes a decrease in the value of the mechanical properties parameters of the polymer concrete even by 30%. The mechanism of cracking of samples, which were subjected to durability tests, was also explored. In addition, it was found that some chip waste can be used as a substitute for natural fillers during preparation of a mineral cast composition without losing much of the strength parameters.
Heuristic Synchronization of Real-Time Response Data
Authors: Weishaupt Samuel , Feiten Linus , Becker Bernd , Wagschal Uwe , Waldvogel Thomas , Metz Thomas 
Published: July 2021

Abstract
When real-time response data from viewers of a televised debate is collected via the internet, the server timestamps of the received responses may not match the correct times of the debate. This paper addresses the question of how the data could be aligned in retrospect, using an algorithm that approximates the playout delay difference between each viewer’s TV signal. The validity is shown by successfully approximating distinctive delays for viewers with satellite or cable TV.
An areal and typological appraisal of gender in Ju
Authors: Pratchett Lee J. 
Published: July 2021

Abstract
This paper provides an exhaustive description of the gender system in the Tsumkwe Juǀ’hoan variety of Ju (Kx’a), a gender system that is largely insensitive to number and natural sex distinctions. The paper also highlights some important points of divergence in a closely related variety due to contact interference while nevertheless maintaining culturally salient aspects of the gender system.
The gender system of Longuda
Authors: Elstermann Julius-Maximilian , Fiedler Ines , Güldemann Tom 
Published: July 2021

Abstract
This article describes the gender system of Longuda. Longuda class marking is alliterative and does not distinguish between nominal form and agreement marking. While it thus appears to be a prototypical example of a traditional Niger-Congo “noun-class” system, this identity of gender encoding makes it look morpho-syntactic rather than lexical. This points to a formerly independent status of the exponents of nominal classification, which is similar to a classifier system and thus less canonical. Both types of class marking hosts involve two formally and functionally differing allomorphs, which inform the historical reconstruction of Longuda noun classification in various ways.
Wahrgenommene Reputation der Genossenschaftsbanken und nachhaltige Zufriedenheit ihrer Mitglieder-Kunden in Deutschland
Authors: Damberg Svenja 
Published: July 2021

ZusammenfassungIn dieser Studie wird ein Reputations- und Kundenzufriedenheitsmodell für Genossenschaftsbanken entwickelt und getestet, um Implikationen für die genossenschaftliche Theorie und Praxis abzuleiten. Unter Anwendung einer multivariaten Analysemethode, d.h. Partial Least Squares Structural Equation Modeling (PLS-SEM), wird ein Strukturgleichungsmodell zur Messung der Determinanten der Reputation und des Einflusses dieser auf die nachhaltige Kundenzufriedenheit von Genossenschaftsbankkunden etabliert. Die empirischen Ergebnisse einer repräsentativen Stichprobe von 675 deutschen Genossenschaftsbankkunden zeigen, dass die wahrgenommene Qualität und Attraktivität die wichtigsten Determinanten der Reputation sind, welche sich wiederum positiv auf die nachhaltige Zufriedenheit auswirkt.
Language Tasks and the Network Control Role of the Left Inferior Frontal Gyrus
Authors: Medaglia John D. , Harvey Denise Y. , Kelkar Apoorva S. , Zimmerman Jared P. , Mass Joely A. , Bassett Danielle S. , Hamilton Roy H. 
Published: July 2021

AbstractRecent work has combined cognitive neuroscience and control theory to make predictions about cognitive control functions. Here, we test a link between whole-brain theories of semantics and the role of the left inferior frontal gyrus (LIFG) in controlled language performance using network control theory (NCT), a branch of systems engineering. Specifically, we examined whether two properties of node controllability, boundary and modal controllability, were linked to semantic selection and retrieval on sentence completion and verb generation tasks. We tested whether the controllability of the left IFG moderated language selection and retrieval costs and the effects of continuous θ burst stimulation (cTBS), an inhibitory form of transcranial magnetic stimulation (TMS) on behavior in 41 human subjects (25 active, 16 sham). We predicted that boundary controllability, a measure of the theoretical ability of a node to integrate and segregate brain networks, would be linked to word selection in the contextually-rich sentence completion task. In contrast, we expected that modal controllability, a measure of the theoretical ability of a node to drive the brain into specifically hard-to-reach states, would be linked to retrieval on the low-context verb generation task. Boundary controllability was linked to selection and to the ability of TMS to reduce response latencies on the sentence completion task. In contrast, modal controllability was not linked to performance on the tasks or TMS effects. Overall, our results suggest a link between the network integrating role of the LIFG and selection and the overall semantic demands of sentence completion.