bluuebunny/crossref_metadata_2025_split huggingface dataset:
On deformable object handling: multi-tool end-effector for robotized manipulation and layup of fabrics and composites
Authors: Papadopoulos Giorgos , Andronas Dionisis , Kampourakis Emmanouil , Theodoropoulos Nikolaos , Kotsaris Panagiotis Stylianos , Makris Sotiris 
Published: July 2023

AbstractOver the past decades, robotic automation has expanded in numerous industrial sectors; however, manufacturing operations involving the manipulation of non-rigid products are mostly preserved manual. The dynamic distortion of flexible objects underlines limitations in robot cognition and dexterity. Inspired by the gaps in composites industry automation, this paper presents a novel multifunctional robot end-effector for the robotic automation of composites layup. Aiming a holistic confrontation of layup challenges, the proposed end-effector incorporates tools for (a) the manipulation of sheet materials, like composite fabrics of variable dimensions; (b) the grasping of core materials, like foam blocks; (c) the handling of peripheral tools; (d) the exertion of fitting forces; and (e) the application of resin in diverse mold geometry cavities. The meticulous design of the end-effector’s configuration allows for consistent and collision-free tool usage with no excess robot tool changes, granting even higher productivity and efficiency. The enhancement in robot dexterity and proficiency for layup operations is validated within an automotive case, where semi-automation is intended for the improvement in overall workstation’s efficiency, quality, ergonomics, and well-being.
Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) reveals potential lipid markers between infrapatellar fat pad biopsies of osteoarthritis and cartilage defect patients
Authors: Haartmans Mirella J. J. , Claes Britt S. R. , Eijkel Gert B. , Emanuel Kaj S. , Tuijthof Gabrielle J. M. , Heeren Ron M. A. , Emans Pieter J. , Cillero-Pastor Berta 
Published: July 2023

AbstractThe incidence of osteoarthritis (OA) has been expected to increase due to an aging population, as well as an increased incidence of intra-articular (osteo-) chondral damage. Lipids have already been shown to be involved in the inflammatory process of OA. This study aims at revealing region-specific lipid profiles of the infrapatellar fat pad (IPFP) of OA or cartilage defect patients by matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI), which could be used as biomarkers for early OA detection. A higher presence of phospholipids was found in OA patients compared with cartilage defect patients. In addition, a higher abundance of ether-linked phosphatidylethanolamines (PE O-s) containing arachidonic acid was specifically found in OA patients compared with cartilage defect patients. These lipids were mainly found in the connective tissue of the IPFP. Specific lipid species were associated to OA patients compared with cartilage defect patients. PE O-s have been suggested as possible biomarkers for OA. As these were found more abundantly in the connective tissue, the IPFP’s intra-tissue heterogeneity might play an important role in biomarker discovery, implying that the amount of fibrous tissue is associated with OA.
Graphical Abstract
Diatoms Reduce Decomposition of and Fungal Abundance on Less Recalcitrant Leaf Litter via Negative Priming
Authors: Feckler Alexander , Baudy-Groh Patrick , Friedrichs Lisa , Gonçalves Sara , Lüderwald Simon , Risse-Buhl Ute , Bundschuh Mirco 
Published: July 2023

AbstractHeterotrophic microbial decomposers colonize submerged leaf litter in close spatial proximity to periphytic algae that exude labile organic carbon during photosynthesis. These exudates are conjectured to affect microbial decomposers’ abundance, resulting in a stimulated (positive priming) or reduced (negative priming) leaf litter decomposition. Yet, the occurrence, direction, and intensity of priming associated with leaf material of differing recalcitrance remains poorly tested. To assess priming, we submerged leaf litter of differing recalcitrance (Alnus glutinosa [alder; less recalcitrant] and Fagus sylvatica [beech; more recalcitrant]) in microcosms and quantified bacterial, fungal, and diatom abundance as well as leaf litter decomposition over 30 days in absence and presence of light. Diatoms did not affect beech decomposition but reduced alder decomposition by 20% and alder-associated fungal abundance by 40% in the treatments including all microbial groups and light, thus showing negative priming. These results suggest that alder-associated heterotrophs acquired energy from diatom exudates rather than from leaf litter. Moreover, it is suggested that these heterotrophs have channeled energy to alternative (reproductive) pathways that may modify energy and nutrient availability for the remaining food web and result in carbon pools protected from decomposition in light-exposed stream sections.
In Vitro Plant Growth Promoting Effect of Fucoidan Fractions of Turbinaria decurrens for Seed Germination, Organogenesis, and Adventitious Root Formation in Finger Millet and Eggplant
Authors: Kaniyassery Arya , Thorat Sachin Ashok , Shanthi Nagarajan , Tantry Shashikala , Sudhakar M. P. , Arunkumar Kulanthaiyesu , Muthusamy Annamalai 
Published: July 2023

AbstractBioactive ingredients derived from brown algae have been extensively used in the food, medicine, and cosmetic industries. In this study, fucoidans of low and high molecular fractions (LMF and HMF) extracted and isolated from brown alga Turbinaria decurrens were analyzed for their efficacy on seed germination, seedling growth, callus induction, direct organogenesis, and adventitious root formation in eggplant and finger millet. The yield and sugar content of LMF were higher than HMF. FTIR confirmed that the isolated fractions containing fucoidan has more sulfate groups in HMF than in LMF. The results showed an enhanced seed germination and seedling growth in both crops. In eggplant, 1 mg/L LMF treatment showed the maximum germination (91.6%), whereas, in finger millet, 0.1 and 0.5 mg/L LMF recorded a substantial increase in germination percentage (41.6 and 46%). Maximum fresh weight (FW) was noted with 1.0 mg/L LMF, and 1.0 mg/L LMF and 0.5 mg/L HMF showed maximum dry weight (DW) in eggplant. In finger millet, maximum DW was observed in 0.5 mg/L LMF and 1.0 mg/L HMF. Maximum biomass was noted in the 0.1 mg/L LMF treated group in the case of callus growth in eggplant. Similarly, the shoot tip initiation, proliferation, and plantlet regeneration were significantly improved with fucoidan LMF (0.1 mg/L). In conclusion, fucoidan extracted from T. decurrens exhibiting natural growth promoter property is reported for the first time in this study. These fucoidan fractions, LMF and HMF, can be utilized as cost-effective supplements in plant tissue culture media replacing the commercial PGRs for micropropagation.
„Rheuma (be-)greifen“ – ein multimodales Lehrkonzept zur Verbesserung der rheumatologischen Lehre für Studierende der Humanmedizin
Authors: Schuster L. , Valor-Méndez L. , Wacker J. , Dannhardt-Thiem V. , Schmidt A. , Knitza J. , Simon D. , Manger B. , Schett G. , Kleyer A. 
Published: July 2023

Zusammenfassung
Hintergrund
Das Bündnis Rheumatologie fordert mithilfe der Kampagne Rheuma2025 eine Verbesserung der studentischen Ausbildung, um in Zukunft die Versorgung rheumatologischer Patientinnen und Patienten zu sichern.

Fragestellung
Wir stellten uns die Frage, ob eine Kombination aus traditionellen und innovativen Lehrmethoden sowohl eine Qualitätsverbesserung der Lehre als auch eine Attraktivitätssteigerung der Fachdisziplin Rheumatologie ermöglicht.

Material und Methoden
Das Lehrkonzept „Rheuma (be-)greifen“, bestehend aus 5 Modulen zu Anamnese mit Schauspielpatientinnen und -patienten, Gelenkultraschall, Gelenkpunktion, 3‑D-Druck von pathologischen Gelenken und Virtual-Reality-Applikation auf Basis realer Fälle in der curricularen Lehre von Studierenden der Humanmedizin, wurde konzipiert und etabliert.

Ergebnisse
Die Evaluation des Lehrkonzeptes bei 93 Studierenden der Humanmedizin erbrachte eine durchgehend hohe Akzeptanz aller Module, welche durchwegs mit „sehr effektiv“ oder „eher effektiv“ bewertet wurden. Module, die unmittelbar auf Patientinnen und Patienten bezogen sind, wie Anamnese mit Schauspielpatientinnen und -patienten, Gelenkultraschall und -punktion, zeigte eine noch etwas höhere Akzeptanz als die Visualisierungsmethoden mittels 3‑D-Druck und VR-Applikation.

Diskussion
Innovative Lehrmethoden können dabei helfen, die Akzeptanz der rheumatologischen Lehre zu stärken, insbesondere wenn klassische Lehrinhalte durch die Verwendung neuartiger Methoden unterstützt werden.
Ascent-driven differentiation: a mechanism to keep arc magmas metaluminous?
Authors: Marxer Felix , Ulmer Peter , Müntener Othmar 
Published: July 2023

AbstractArc magmatism is fundamental to the generation of new continental or island arc crust. However, the mechanisms that add to the chemical complexity of natural calc-alkaline magmas ranging from basaltic to rhyolitic compositions are debated. Differentiation mechanisms currently discussed include magma mixing, assimilation, crustal melting, or (fractional) crystallisation. In this contribution, the differentiation of arc magmas by decompression-driven crystallisation is investigated. We performed a set of equilibrium crystallisation experiments at variable crustal pressures (200–800 MPa) on a hydrous high-Al basalt (3.5 wt.% of H2O in the starting material) with run temperatures varying from near-liquidus conditions (1110 °C) to 900 °C. Oxygen fugacity was buffered at moderately oxidising conditions close to the NNO equilibrium. Combining these novel experiments with previous polybaric fractional crystallisation experiments (Marxer et al., Contrib Mineral Petrol 177:3, 2022) we demonstrate the effects of pressure on the crystallisation behaviour of calc-alkaline magmas with respect to liquid and cumulate lines of descent, mineral chemistry, and phase proportions. Decompression shifts the olivine-clinopyroxene cotectic curve towards melt compositions with higher normative clinopyroxene and enlarges the stability field of plagioclase. This exerts a key control on the alumina saturation index of residual liquids. We argue that near-adiabatic (or near-isothermal) decompression accompanied by dissolution of clinopyroxene entrained during residual melt extraction in the lower crust keeps arc magmas metaluminous during crystallisation-driven differentiation thereby closely reproducing the compositional spread observed for natural arc rocks.
Use cases also exist for attackers—how to foster the concept of misuse cases
Authors: Azamat Mana , Schütz Johann , Uslar Mathias 
Published: July 2023

AbstractDue to the new digital control structures of cyber-physical energy systems (CPES), where the control interventions no longer take place physically on site but are triggered, released, executed and acknowledged remotely by automated control systems, there is not only the risk of incorrect actions by plants or operators, but also of possible attacks or misuses. In this contribution, we propose an integrated security-by-design approach (on a conceptual level) for testing the interoperability of various heterogeneous systems (e.g., TSO-DSO communications) by combining multiple, but yet separated, state-of-the-art approaches. With the objective of eliminating or minimizing the impact of cyber incidents, best practices from various sectors have been adapted and integrated with well-established methods and standards from the energy sector, such as the IEC 62559‑2 use case template.
Repeatability of Teethan® indexes analysis of the masseter and anterior temporalis muscles during maximum clenching: a pilot study
Authors: Saracutu Ovidiu Ionut , Pollis Matteo , Cagidiaco Edoardo Ferrari , Ferrari Marco , Manfredini Daniele 
Published: July 2023

Abstract
Objectives
The aim of this study is to assess the repeatability of a surface electromyographic (EMG) device (Teethan®, Teethan S.p.A., Milan, Italy), designed for the analysis of the masseter and anterior temporalis muscles.

Materials and methods
Tests were performed on a sample of 30 healthy fully dentate TMD-free individuals randomly selected. Each test consisted of two distinct recordings performed at 5-min intervals: (i) the patient is asked to clench with maximum voluntary contraction (MVC), with two cotton rolls interposed between the dental arches; (ii) the patient is asked to repeat the same clenching activity without the cotton rolls. The outcomes of the study were the EMG indices conceptualized by the manufacturing company, based on the differences between the two test conditions (i.e., clenching on cotton rolls and on dentition). Pairwise correlation analysis and ANOVA test were performed to assess the strength of correlation and the significance of differences between the results of the three trials.

Results
Thirty TMD-free healthy individuals (20 females and 10 males; mean age 44 years, range 16–60 years) took part in the study. ANOVA test did not show any statistically significant difference between the three trials. The Global Index, which is the mean of the other EMG indices, showed the highest correlation values between the three trials, while some other indices showed a weak-to-medium correlation level. One out of five participants showed a coefficient of variation higher than 10%.

Conclusions
The statistical analysis showed that the indices provided by the device are quite repeatable. However, this does not necessarily imply a specific clinical application of the device, which was here used in fully controlled experimental conditions.

Clinical relevance
The clinical usefulness of the applied protocol remains questionable. Further studies should test the repeatability of EMG findings gathered with this device under various circumstances, in a more heterogeneous population.
Concise and interpretable multi-label rule sets
Authors: Ciaperoni Martino , Xiao Han , Gionis Aristides 
Published: July 2023

AbstractMulti-label classification is becoming increasingly ubiquitous, but not much attention has been paid to interpretability. In this paper, we develop a multi-label classifier that can be represented as a concise set of simple “if-then” rules, and thus, it offers better interpretability compared to black-box models. Notably, our method is able to find a small set of relevant patterns that lead to accurate multi-label classification, while existing rule-based classifiers are myopic and wasteful in searching rules, requiring a large number of rules to achieve high accuracy. In particular, we formulate the problem of choosing multi-label rules to maximize a target function, which considers not only discrimination ability with respect to labels, but also diversity. Accounting for diversity helps to avoid redundancy, and thus, to control the number of rules in the solution set. To tackle the said maximization problem, we propose a 2-approximation algorithm, which circumvents the exponential-size search space of rules using a novel technique to sample highly discriminative and diverse rules. In addition to our theoretical analysis, we provide a thorough experimental evaluation and a case study, which indicate that our approach offers a trade-off between predictive performance and interpretability that is unmatched in previous work.
Graph states and the variety of principal minors
Authors: Galgano Vincenzo , Holweck Frédéric 
Published: July 2023

AbstractIn Quantum Information theory, graph states are quantum states defined by graphs. In this work we exhibit a correspondence between orbits of graph states and orbits in the variety of binary symmetric principal minors, under the action of SL$$(2,{\mathbb {F}}_2)^{\times n}\rtimes {\mathfrak {S}}_n$$

(
2
,

F
2

)

×
n

⋊

S
n

. First we study the orbits of maximal abelian subgroups of the n-fold Pauli group under the action of $${\mathcal {C}}_n^{\textrm{loc}}\rtimes {\mathfrak {S}}_n$$

C
n
loc

⋊

S
n

, where $${\mathcal {C}}_n^{\textrm{loc}}$$

C
n
loc

is the n-fold local Clifford group, and we show that this action corresponds to the natural action of SL$$(2,{\mathbb {F}}_2)^{\times n}\rtimes {\mathfrak {S}}_n$$

(
2
,

F
2

)

×
n

⋊

S
n

on the variety $${\mathcal {Z}}_n\subset {\mathbb {P}}({\mathbb {F}}_2^{2^n})$$

Z
n

⊂
P

(

F
2

2
n

)

of principal minors of binary symmetric $$n\times n$$

n
×
n

matrices: the crucial step is in translating the action of SL$$(2,{\mathbb {F}}_2)^{\times n}$$

(
2
,

F
2

)

×
n

into an action of the local symplectic group Sp$$_{2n}^{\textrm{loc}}({\mathbb {F}}_2)$$

2
n

loc

(

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2

)

. We conclude by showing how the former action restricts onto stabilizer groups, stabilizer states and graph states.
My Turning Point Tells the Story: A Longitudinal Examination of Greater Episodic Detail and Youth Depressive Symptoms
Authors: Keats Laurel , Jose Paul , Salmon Karen 
Published: July 2023

AbstractAlthough research findings show that the personal memories of people who are depressed are characterized by sparse episodic detail, under some circumstances, the opposite pattern emerges. Specifically, a recent study (Salmon et al., 2021) has shown that for community youth, greater episodic detail in a highly self-relevant narrative (a life turning point) predicted increased depressive symptoms concurrently and one year later. In a new longitudinal study of young people (N = 320 at Time 1, M = 16.9 years; 81% female) followed up over six months, we aimed to replicate and extend this finding. In Study A, we compared the turning point with a narrative about a conflict event, to establish whether the detail in a turning point memory uniquely predicted depressive symptoms. Supporting the first hypothesis, at both time-points, greater episodic detail was concurrently positively associated with depressive symptoms for turning point narratives only. Contrary to our second hypothesis, greater detail did not predict increased depressive symptoms longitudinally. The reverse pattern was significant, however, in that greater initial depressive symptoms predicted greater detail uniquely in the turning point narrative six months later. In Study B, we determined that the concurrent association between episodic detail and depressive symptoms in turning points (but not conflict events) was exacerbated by linguistic markers of self-focus (greater I-talk and lower distancing language). These findings suggest that greater detail in a turning point narrative may uniquely signify risk of psychological distress when youth narrate the experience with heightened self-focus.
Thermal Oxidative Degradation of Pure Cu2S and Industrial White Metal
Authors: Vázquez Vázquez M. , Blanco M. J. Díaz , Figueroa R. A. Parra , Varela E. R. Balladares , Riveros O. Jerez , Cerda M. Cuevas , Bravo I. Moreno-Ventas 
Published: July 2023

AbstractThe kinetics of the thermal oxidation of white metal and Cu2S have been studied by thermogravimetric analysis (TG), which was carried out under atmospheric oxidative conditions (O2 100%) with heating rates of 5, 10, 15 and 20 °C min−1. Each experiment was performed three times, the indicated values being the average of the three experiments. The experimental data were evaluated using isoconversional models based on the Arrhenius equation. The models are constructed using first-order mechanisms in the reactions and therefore, since most of them present adequate regression coefficients, it can be verified that order 1 is the most predominant order among the reactions found. In addition, the Kissinger–Akahira–Sunose model, which has the highest regression coefficient, is considered to be the most optimal. Similar behavior was recorded between Cu2S and white metal, as well as a similar regular increase in the apparent activation energy (Ea) of 10–30 kJ mol−1 for both materials. The reactions that took place during the oxidation of white metal and Cu2S were determined using a computational model based on thermodynamics developed in this work. The identified phases include CuSO4, Cu2SO4, Cu2O, CuO, CuO·CuSO4.
Transferable supervised learning model for public transport service load estimation
Authors: Yin Tianwei , Nassir Neema , Leong Joseph , Tanin Egemen , Sarvi Majid 
Published: July 2023

Abstract
Detailed knowledge of service utilisation and passenger load profiles is the basis for the design, operation, and adjustment of a public transport service. The advancement in sensing technologies enable transit operators to monitor the variabilities in passenger flows continuously and consistently. There is a growing body of literature on using supervised learning models with direct passenger counts from historical observations. However, the incomplete, inaccurate, and biased data from automatic sensors pose challenges in this process. This paper proposes novel supervised learning models to estimate the onboard load profile of public transport services based on two main data sources: (1) limited data collected on a subset of service vehicles by automatic passenger counting (APC) systems, and (2) fare data collected by automatic fare collection (AFC) systems. The specific consideration is given to the fact that the developed models can be transferred across different routes. This is motivated by the commonly “limited coverage” of automated passenger counter devices on service vehicles. We introduce an array of new models, including a superior segment-based model, which demonstrates remarkable improvement in model transferability and accuracy. The proposed methodology utilises separate methods in different segments of a transit line. The proposed models were applied to three tram lines in Melbourne, Australia, where various types of shortcomings exist in the automated data. The test results demonstrate that the proposed models can be transferred and applied to other transit route without relying on historical observations. This would enable transit operators to reduce the number of required devices and monitor service utilisation in a more cost-efficiently manner, particularly in public transport networks where AFC coverage is usually incomplete and negatively skewed. The information on service utilisation will not only help operators to accommodate the variability in passenger demand but also assist passengers in journey planning to avoid overcrowding on services.
Electromagnetic field exposure affects the calling song, phonotaxis, and level of biogenic amines in crickets
Authors: Wyszkowska Joanna , Kobak Jarosław , Aonuma Hitoshi 
Published: July 2023

AbstractThe electromagnetic field (EMF) is ubiquitous in the environment, constituting a well-known but poorly understood stressor. Few studies have been conducted on insect responses to EMF, although they are an excellent experimental model and are of great ecological importance. In our work, we tested the effects of EMF (50 Hz, 7 mT) on the cricketGryllus bimaculatus: the male calling song pattern, female mate choice, and levels of biogenic amines in the brain. Exposure of males to EMF increased the number and shortened the period of chips in their calling song (by 2.7% and 5% relative to the control song, respectively), but not the sound frequency. Aged (3-week-old) females were attracted to both natural and EMF-modified male signals, whereas young (1-week-old, virgin) females responded only to the modified signal, suggesting its higher attractance. Stress response of males to EMF may be responsible for the change in the calling song, as suggested by the changes in the amine levels in their brains: an increase in dopamine (by 50% relative to the control value), tyramine (65%), and serotonin (25%) concentration and a decrease in octopamine level (by 25%). These findings indicate thatG. bimaculatusresponds to EMF, like stressful conditions, which may change the condition and fitness of exposed individuals, disrupt mate selection, and, in consequence, affect the species’ existence.Graphical Abstract