bluuebunny/crossref_metadata_2025_split huggingface dataset:
Innovative laboratory unit for pre-testing of oxygen carriers for chemical-looping combustion
Authors: Fleiß B. , Fuchs J. , Penthor S. , Arlt S. , Pachler R. , Müller S. , Hofbauer H. 
Published: May 2021

AbstractChemical-looping combustion (CLC) is a highly efficient CO2 separation technology with no direct contact between combustion air and fuel. A metal oxide is used as an oxygen carrier (OC) and acts in a dual fluidized bed as a separation tool and supplies the fuel with oxygen, which as an oxidation medium causes combustion to CO2 and H2O. The use of solid fuels, especially biomass, is the focus of current investigations. The OC plays a key role, because it must meet special requirements for solid fuels, which are different to gaseous fuels. The ash content, special reaction mechanisms, and increased abrasion make research into new types of OC essential. Preliminary testing of OC before their use in larger plants regarding their suitability is recommended. For this reason, this work shows the design and the results of a laboratory reactor, which was planned and built for fundamental investigation of OC. Designed as a transient fluidized bed, the reactor, equipped with its own fuel conveying system and an in situ solid sampling, is intended to be particularly suitable for cheap and rapid pre-testing of OC materials. During the tests, it was shown that the sampling device enables non-selective sampling. Different OC were tested under various operating conditions, and their ability to convert different fuels could be quantified. The results indicate that OC can be sufficiently investigated to recommend operation in larger plants.
Case report. 71-jarige man met progressieve onderbuikspijn en onvermogen tot mictie
Authors: Mensink Jolien T. M. , Zijta Frank M. , Tong Tan Q. T. 
Published: May 2021

SamenvattingDeze casus beschrijft een patiënt met progressieve onderbuikspijn en onvermogen tot mictie op basis van een uitzonderlijk grote mediane intraprostatische cyste. Een dergelijke cyste is een zeldzame, benigne, vaak asymptomatische aandoening en kan onderverdeeld worden in een utriculus cyste en een Müllerian duct cyste. Na drainage van de cyste bleef de patiënt in deze beschreven casus klachtenvrij.
Case report. Behoud van testiculaire functie ondanks lang bestaande torsio monotestis
Authors: Hernandez Yenty Qiona M. , Christiaansen Charlotte E. , de Vries Peter , Callewaert Piet R. H. 
Published: May 2021

SamenvattingTorsio testis is een relatief veel voorkomend acuut urologisch probleem bij voornamelijk kinderen en pubers, met een prevalentie van 3,8 per 100.000. Indien gemist of te laat gediagnosticeerd kan torsio testis tot verlies van testiculaire functie leiden. In dit case report bespreken wij een patiënt met een monotestis bij wie, ondanks al dagen bestaande pijnklachten, toch voor operatieve detorsie en fixatie is gekozen en daarbij het sparen van de testis. Follow-up toonde behoud van testiculaire functie aan met beweeglijke zaadcellen en een adequaat testosterongehalte.
Das polyzystische Ovar-Syndrom – Entstehung, Behandlung und neue Erkenntnisse
Authors: Borzan Valentin , Mayr Anna , Obermayer-Pietsch Barbara 
Published: May 2021

ZusammenfassungDas polyzystische Ovar-Syndrom (PCOS) ist die häufigste Endokrinopathie bei Frauen im gebärfähigen Alter. In den letzten Jahren gab es zahlreiche Fortschritte im Verständnis zu Definition, Pathogenese und Behandlungsmöglichkeiten. Diese Übersichtsarbeit gibt Einblick in diese Erkenntnisse und erläutert mögliche neue Therapiezweige anhand der aktuellen Literatur.Die Symptome des PCOS sind vielfältig und ihre Ausprägung entlang eines breiten Spektrums verteilt. Die wichtigsten klinischen Hinweise sind Hirsutismus, Oligo‑/Amenorrhö, Infertilität sowie Insulinresistenz, Übergewicht/Adipositas und die namensgebenden polyzystischen Ovarien. Da es keine ursächliche Therapie für das Syndrom gibt, sollte die symptomatische Behandlung mit der Patientin und ihren Bedürfnissen abgestimmt werden. Die wichtigsten Therapiemöglichkeiten sind Lebensstilinterventionen, Metformin, hormonelle Kontrazeptiva, (hormonelle) Ovulationsinduktoren sowie chirurgische Eingriffe.In den letzten Jahren haben sich mit dem Zusammenhang von Darmmikrobiom, Hormonen und Energiestoffwechsel weitere potenzielle Behandlungsmöglichkeiten aufgetan, deren Einfluss aktuell untersucht wird. Probiotika könnten dabei helfen, hormonelle und metabolische Prozesse zu modifizieren und dadurch PCOS-typische Symptome zu lindern.
Diagnosis and Management of Sciatic Endometriosis at the Greater sciatic Foramen: a Case Report
Authors: Trager Robert J. , Prosak Sarah E. , Leonard Kellee A. , Sigel Jessica E. , Dusek Jeffery A. 
Published: May 2021

AbstractSciatic endometriosis is a rare condition in which endometrial tissue invades or compresses the lumbosacral plexus and/or sciatic nerve and causes sciatic pain, which is often cyclical. Its diagnosis depends on the recognition of signs and symptoms atypical to common degenerative lumbar disorders and its treatment requires timely and coordinated care. A 26-year-old woman presented to a chiropractor at a hospital-based outpatient clinic with a 6-month exacerbation of radiating pain and paresthesia from the right gluteal region into the leg and foot. She was previously treated for over 3 months for suspected lumbosacral radiculopathy with physical therapy. Multisegmental neurologic deficits inconsistent with her prior lumbar imaging prompted further investigation. Pelvis and hip MRI identified a 7×5 cm mass extending through the greater sciatic foramen which compressed and infiltrated the lumbosacral plexus, sciatic nerve, and superior gluteal nerve, and was confirmed via biopsy to be endometriosis. Referral and co-management with a neurologist and obstetrician resulted in a conservative strategy of hormone therapy with the option of having surgical excision if needed. Sciatic endometriosis is a rare disorder that may be misdiagnosed due to its tendency to mimic common lumbar disorders. This case highlights the role of a chiropractor coordinating care for a complex disorder that benefits from early diagnosis for optimal management. It also illustrates how integration of chiropractors into a hospital system can facilitate their ability to manage neuro-musculoskeletal disorders as they can easily refer to and communicate with other medical specialties within the network.
Generating a dataset for learning setplays from demonstration
Authors: Simões Marco A. C. , Nobre Jadson , Sousa Gabriel , Souza Caroline , Silva Robson M. , Campos Jorge , Souza Josemar R. , Nogueira Tatiane 
Published: May 2021

Abstract
Coordination is an important requirement for most Multiagent Systems. A setplay is a particular instance of a coordinated plan for multi-robot systems in collective sports. Setplays are usually designed by robotics specialists using some existing tools, like the SPlanner, or by hand-coding. This work presents recent improvements to the Strategy Planner (SPlanner) and its corresponding FCPortugal Setplays Framework (FSF) to provide sophisticated setplays. This toolkit is useful to design strategic plans for robotic soccer teams as a particular case of Multi-Agent Systems (MASs). The new enhancements enable more realistic setplays, including, but not limited to, the definition of better pass strategies and defensive setplays. The enhanced tool is used to populate a dataset with demonstrations made by soccer experts and used in a Learning from Demonstration (LfD) approach to allow robotic soccer teams to learn new setplays. A new demonstration mode in the RoboCup Soccer Simulation 3D (SSIM3D) viewer RoboViz was also introduced to integrate this tool with SPlanner. Domain experts can use this set of tools to capture a specific scene in a game in RoboViz and use it as an initial step for a new setplay recommendation in SPlanner. The resulting dataset is organized into fuzzy clusters to be used in a reinforcement learning strategy. This paper describes the whole process.

Article Highlights

This paper’s main contribution is generating a dataset of setplays to support
learning from demonstration in robotic soccer.

A set of new features were added to the Strategic Planner(SPlanner) to enable
the design of more realistic setplays.

The official RoboCup viewer (Roboviz) was integrated with SPlanner using a
new demonstration mode.
Binary classification with classical instances and quantum labels
Authors: Caro Matthias C. 
Published: May 2021

AbstractIn classical statistical learning theory, one of the most well-studied problems is that of binary classification. The information-theoretic sample complexity of this task is tightly characterized by the Vapnik-Chervonenkis (VC) dimension. A quantum analog of this task, with training data given as a quantum state has also been intensely studied and is now known to have the same sample complexity as its classical counterpart. We propose a novel quantum version of the classical binary classification task by considering maps with classical input and quantum output and corresponding classical-quantum training data. We discuss learning strategies for the agnostic and for the realizable case and study their performance to obtain sample complexity upper bounds. Moreover, we provide sample complexity lower bounds which show that our upper bounds are essentially tight for pure output states. In particular, we see that the sample complexity is the same as in the classical binary classification task w.r.t. its dependence on accuracy, confidence and the VC-dimension.
Information Sharing in the Dublin System: Remedies for Asylum Seekers In-Between Gaps in Judicial Protection and Interstate Trust
Authors: Vavoula Niovi 
Published: May 2021

AbstractIn most EU policy areas, procedural cooperation between national administrations takes place through the shared implementation of “composite” decision-making procedures, facilitated by the operation of multijurisdictional networks or horizontal or vertical information exchange. In the context of asylum policy, such administrative cooperation has been necessary in the distribution of asylum seekers—in accordance with the Dublin III Regulation, which allocates responsibility among Member States to examine an asylum application. In addition to rules in the Regulation itself—Article 34—information sharing also takes place through Eurodac, an EU-wide centralized information system. This Article examines whether the Dublin system ensures effective judicial and administrative remedies in the operationalization of multijurisdictional information networks. It analyzes the relevant Eurodac and Dublin-related legislation, national implementation, and national case law through the lens of administrative cooperation. The assumption that the data exchanged has been acquired and processed lawfully, due to interstate trust, and the extent to which that assumption is rebuttable, are central themes throughout this Article. It is argued that administrative cooperation through information sharing takes precedence over the right to an effective remedy, and that, in practice, judicial and extrajudicial remedies are insufficient to protect asylum seekers.
Improving the Accountability of the EU Budget’s Multi-Level Implementation: Strengthening the Contribution of the European Court of Auditors
Authors: Cipriani Gabriele 
Published: May 2021

AbstractEU spending—more than €1.800 billion for the next seven years—is spread over a large number of programs and financial mechanisms. Implemented under the Commission’s responsibility, its day-to-day management is mostly ensured by a plurality of actors, in particular by member states’ nominated bodies. This unique context places the responsibility to undertake influential audit work that could support the EU achieving longterm benefits on the European Court of Auditors (ECA). In this respect, this Article highlights a number of issues. First, this Article discusses the annual audit opinion, to which the ECA devotes at least 40% of its audit capacity—about 400 auditors—despite the limited assurance it provides. This Article argues that the audit opinion should focus on the operation of the Commission’s internal control framework and enlarge its scope to “value for money,” thus fostering responsibility at management level and sustaining the emergence of a performance culture. Furthermore, to fully capture the synergies, the risks of double funding and competition between different programs pursuing similar objectives—for example, through cohesion, transport, energy, and research spending—the ECA should undertake a scrutiny across its audit chambers’ thematic responsibilities. The ECA should also consider increasing the number of member states covered by its performance reports. Moreover, the ECA’s recommendations would benefit from an indication about their importance, and their followup should be extended at member states’ level. Finally, this Article welcomes the ECA’s intention to assess the added value of EU spending as compared to national spending alone, hence opening up the prospect of an ECA performance “assurance” assessment.
The Notion of “Transnationality” in Administrative Law: Taxonomy and Judicial Review
Authors: Chevalier Emilie , Dubos Olivier 
Published: May 2021

AbstractThis Article deals with the issues related to the judicial review of transnational acts which are adopted particularly within the context of the European integration process. The European Union is a privileged playground for the development of administrative acts of this type, primarily because of the existence of various and diverse administrative cooperation mechanisms. Transnational administrative acts are, either because of their adoption process or because of their conditions of enforcement, governed by at least two national legal orders. The question of the availability of judicial review in the context of transnational administrative acts is a complex one, because the presence of one exogeneous element may disrupt the straightforward path toward the right of access to courts—as both the determination of the competent court and the scope of the review carried out by the court seized become uncertain. This Article first draws up a typology of transnational administrative acts. Second, on the basis of this typology, this Article analyzes the solutions developed by the case law of the Court of Justice and assesses them in the light of the principles of territoriality of administrative law and the right to effective judicial protection.
CORRUPTION AND PERCEIVED FAIRNESS: EMPIRICAL EVIDENCE FROM EAST ASIAN COUNTRIES
Authors: Chang Wen-Chun 
Published: May 2021

AbstractCorruption can erode political trust and a well-functioning democratic system, but it is unclear whether perceptions of corruption are significantly associated with citizens’ perceptions about the fairness of income distribution. This study thus examines the role of political trust in shaping the relationship between perceptions of corruption and perceived fairness of income distribution for East Asian countries. The findings show that perceived corruption has strong detrimental effects on political trust, and that those who have lower levels of political trust are more likely to perceive the income distribution as unfair in their countries. Causal mediation analysis results indicate that political trust plays an important role in mediating the negative effect of perceived corruption on perceived fairness of income distribution. Moreover, the results from examining the mutual causality linking corruption, political trust, and perceived fairness suggest that the reciprocal causal effects are also significant and robust.
The triggers of the disaggregation of Voyeykov Ice Shelf (2007), Wilkes Land, East Antarctica, and its subsequent evolution
Authors: Arthur Jennifer F. , Stokes Chris R. , Jamieson Stewart S. R. , Miles Bertie W. J. , Carr J. Rachel , Leeson Amber A. 
Published: May 2021

AbstractThe weakening and/or removal of floating ice shelves in Antarctica can induce inland ice flow acceleration. Numerical modelling suggests these processes will play an important role in Antarctica's future sea-level contribution, but our understanding of the mechanisms that lead to ice tongue/shelf collapse is incomplete and largely based on observations from the Antarctic Peninsula and West Antarctica. Here, we use remote sensing of structural glaciology and ice velocity from 2001 to 2020 and analyse potential ocean-climate forcings to identify mechanisms that triggered the rapid disintegration of ~2445 km2of ice mélange and part of the Voyeykov Ice Shelf in Wilkes Land, East Antarctica between 27 March and 28 May 2007. Results show disaggregation was pre-conditioned by weakening of the ice tongue's structural integrity and was triggered by mélange removal driven by a regional atmospheric circulation anomaly and a less extensive latent-heat polynya. Disaggregation did not induce inland ice flow acceleration, but our observations highlight an important mechanism through which floating termini can be removed, whereby the break-out of mélange and multiyear landfast sea ice triggers disaggregation of a structurally-weak ice shelf. These observations highlight the need for numerical ice-sheet models to account for interactions between sea-ice, mélange and ice shelves.
Normativity, power, and agency: On the chronotopic organization of orthographic conventions on social media
Authors: Sanei Taraneh 
Published: May 2021

AbstractThis article examines Iranian social media users’ understandings of normative behavior by focusing on a new online ‘nonstandard’ orthographic norm: the ‘hekasreh’. Adopting a chronotopic approach to the study of discourse, I analyze Iranian Twitter users’ social positionings towards the ‘hekasreh’ phenomenon. I show how tweeters invoke different spatiotemporal configurations, and the normative behaviors associated with them, to argue for and/or against this new orthographic norm. Focusing on the argumentative dynamics of the invoked chronotopes, I investigate the agentive and creative ways in which power is claimed and maintained in online spaces. This study, on the one hand, provides more empirical data to highlight the significance of attending to the online-offline nexus, and on the other hand argues for a more dynamic conceptualization of the interaction between normativity, power, and agency in online communication. (Social media, Farsi/Persian orthography, sociolinguistic normativity, chronotope, power, agency)*
Views and experiences of adult children concerning intergenerational relationships with their older kin: a qualitative study from South India
Authors: Jothikaran Teddy Andrews Jaihind , Meershoek Agnes , Ashok Lena , Krumeich Anja 
Published: May 2021

AbstractThe tradition of intergenerational care and support exchanges in Indian families is assumed to be disturbed because of changes in family structure brought on by modern life, which is mainly based on studies investigating experiences of older adults regarding the impact of socio-economic change on their care arrangement. However, there is a large gap in understanding the experiences of adult children from a larger relational perspective, more than just care provision to their older relatives. Drawing on 26 in-depth interviews with adult children living in modern and traditional living arrangements from South India, the study explores their experiences with their parents with regard to reciprocity of care and support, the challenges they experience and strategies they adopt to overcome those challenges. The analysis shows adult children perceive the increased demands of modern work life and their older kin's preferences to be heard, lack of flexibility and related extra domestic work and costs, do cause a bigger burden for them in both living arrangements. However, adult children strive to uphold the traditional values of caring for their older kin and sharing emotional bonding with them. This inspiration helps them to employ strategies to accept their older relatives as they are, focus their attention on the benefits they receive from them and distribute care tasks with other relatives to overcome the challenges.
Development of adaptive human–computer interaction games to evaluate attention
Authors: Kandemir Hasan , Kose Hatice 
Published: May 2021

AbstractIn this paper, several physical activity-based human–computer interaction (HCI) games which are developed and implemented for the improvement of attention, emotion, and sensory–motor coordination will be presented. The interface and the difficulty levels of these games are specially designed for the use of people with different age groups and disabilities. The games involve physical activities for the fulfillment of some basic HCI tasks which require hand and arm motion for control, such as fruit picking and air hockey, with adaptive difficulty levels based on varying parameters of the games and human performance. In the fruit picking game, several fruit images are moving from top to the bottom of the screen. Objective is to collect apples while avoiding the pears. The player’s hand will control the basket that collects the fruits. In the air hockey game, the player will try to score goals against computer-controlled opponent. The player’s hand will control the paddle to hit the puck to score or to defend his/her goal area. The player’s hand is recognized by Kinect RGB-D sensors in both games. Aim of the adaptive difficulty-based system is keeping the players engaged in the games. The games are tested with a group of deaf children (3.5–5 years) as a part of an ongoing project,1 to decrease the stress of the children and increase their positive emotions, attention, and sensory–motor coordination before the audiology tests. The game performances and the evaluation of the therapists show that the games have a positive impact on the children. The games are also tested with a group of adults as a control group, where a mobile EEG device is employed to detect the attention levels. For this purpose, the adults also attended a third game featuring a maze and controlled with Myo sensors.
Design, modeling, and constraint-compliant control of an autonomous morphing surface for omnidirectional object conveyance
Authors: Raptis Ioannis A. , Hansen Christopher , Sinclair Martin A. 
Published: May 2021

AbstractIn this paper, we conceptualize, analyze, and assemble a prototype adaptive surface system capable of morphing its geometric configuration using an array of linear actuators to impose omnidirectional movement of objects that lie on the surface. The principal focus and contribution of this paper is the derivation of feedback control protocols–for regulating the actuators’ length in order to accomplish the object conveyance task–that scale with the number of actuators and the nonlinear kinematic constraints of the morphing surface. Simulations and experimental results demonstrate the advantages of distributed manipulation over static-shaped feeders.