cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Loss of attachment promotes proline accumulation and excretion in cancer cells.
Creators: name: Pilley, Steven E
name: Hennequart, Marc
name: Vandekeere, Anke
name: Blagih, Julianna
name: Legrave, Nathalie M
name: Fendt, Sarah-Maria
name: Vousden, Karen H
name: Labuschagne, Christiaan F
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: classificationCode: Tumour Biology
subject: Tumour Biology
classificationCode: Signalling & Oncogenes
subject: Signalling & Oncogenes
classificationCode: Infectious Disease
subject: Infectious Disease
classificationCode: Immunology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: Metabolism
subject: Metabolism
classificationCode: Developmental Biology
subject: Developmental Biology
classificationCode: Computational & Systems Biology
subject: Computational & Systems Biology
classificationCode: Human Biology & Physiology
subject: Human Biology & Physiology
classificationCode: Biochemistry & Proteomics
subject: Biochemistry & Proteomics
classificationCode: Cell Biology
subject: Cell Biology

description: Previous studies have revealed a role for proline metabolism in supporting cancer development and metastasis. In this study, we show that many cancer cells respond to loss of attachment by accumulating and secreting proline. Detached cells display reduced proliferation accompanied by a general decrease in overall protein production and de novo amino acid synthesis compared to attached cells. However, proline synthesis was maintained under detached conditions. Furthermore, while overall proline incorporation into proteins was lower in detached cells compared to other amino acids, there was an increased production of the proline-rich protein collagen. The increased excretion of proline from detached cells was also shown to be used by macrophages, an abundant and important component of the tumor microenvironment. Our study suggests that detachment induced accumulation and secretion of proline may contribute to tumor progression by supporting increased production of extracellular matrix and providing proline to surrounding stromal cells.
Strong CP Problem and spontaneous generation of CP violating phase in CKM matrix
Creators: name: Liao, Wei
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that in a Complementary two-Higgs doublet model(C2HDM) the CP violating phase in the CKM matrix can be generated spontaneously, dangerous FCNC can be naturally suppressed and the strong CP problem can also be avoided. The two Higgs doublets in the model are complementary in the sense that none of them is enough to describe masses of a given type of quarks. We find that the strength of FCNC is suppressed by the strength of Yukawa couplings of the first generation quark and the tree-level FCNC is sufficiently small. Using an explicit example, we show that radiative correction to the assumed Yukawa couplings can modify the discussion about the strong $θ$. The correction to the strong $θ$ is estimated to be less than around $10^{-12}\sim10^{-10}$ which can be tested in future experiment.
description: 17 pages, version for publication in PRD
Continuous-variable entanglement generated with a hybrid PT-symmetric system
Creators: name: Vashahri-Ghamsari, Saeid
name: He, Bing
name: Xiao, Min
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a proposal of generating macroscopic continuous-variable entanglement with two coupled waveguides respectively carrying optical damping and optical gain. Moreover, a squeezing element is added into one or both waveguides. We show that quantum noise effect existing in the process is essential to the degree of the generated entanglement. It will totally eliminate the entanglement in the setup of adding the squeezing element into the waveguide filled with optical damping material, but will not completely damp the entanglement to zero in the other configurations of having the squeezing element in the gain medium or in both gain and damping medium. The degree of the generated continuous-variable entanglement is irrelevant to the intensities of the input light in coherent states. Moreover, the relations between the entanglement and system parameters are illustrated in terms of the dynamical evolutions of the created continuous-variable entanglement.
description: 7 pages and 6 figures
�Edible Insects�: Entomophagy in light of the new European Legislation on novel Foods
Creators: name: Tasini, Federico
Publisher: name: Universit� di Trento. Dipartimento di scienze giuridiche
Year: 2016

description: Day after day, insects as alternative sources of food, or more specifically protein, is starting to become a very hot topic. In many areas of the world, certain insects species are a traditional sources of food. Insects contain protein, vitamins, minerals and fatty acids. They could, therefore, partially replace animal protein in people?s diets. The interest in edible insects is gradually growing also in Western countries. 2015 seemed to represent the turning point for entomophagy within the European Union. The new novel foods? rules laid down by Regulation (EU) n. 2015/2283 on Novel foods explicitly regulate insects consumption for the first time in Europe. This research will focus on the regulatory approach that the European Union has been taking on the issue. Starting from a short summary of the potential benefitis of insects as food and feed, with particular reference to the environment and the food security, this work aims to highlight the importance of law as a precondition to the diffusion of entomophagy and to discuss its possible shortcomings.
Assetti istituzionali e prospettive applicative del private antitrust enforcement nell?Unione europea: Atti del VI Convegno biennale Antitrust Facolt� di Giurisprudenza Trento, 6-8 aprile 2017
Creators: name: Benacchio, Gian Antonio
name: Carpagnano, Michele
Publisher: name: Universit� degli Studi di Trento
Year: 2018

description: Il Volume raccoglie gli atti della VI edizione del Convegno Antitrust di Trento, tenutosi dal 6 all?8 aprile 2017. Le principali tematiche hanno riguardato il nuovo assetto istituzionale del private antitrust enforcement in Italia e nell?Unione europea a seguito del recepimento della Direttiva 2017/104 UE, le esperienze applicative negli Stati membri, la prospettiva del mercato e dei consumatori rispetto alle azioni di risarcimento del danno antitrust ed i nuovi assetti istituzionali delle Autorit� di Concorrenza in Europa.
Classroom Conditions and Principals’ Perception of Factors Responsible for Students’ Dropout in Public Secondary Schools in Calabar Education Zone, Cross River State, Nigeria.pdf
Creators: name: Orji, Evelyn   Ijeoma
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: This study adopted survey research design. Through non probability sampling, the principals and their deputies in the 81 public secondary schools in the study area constituted both the population and sample. Out of 243 principals and their deputies, 192 who were accessible constituted the sample for this study. The instrument entitled “Factors Responsible for Students’ Dropout Questionnaire” (FRF-SDQ) was considered valid base on the recommendation by expert reviewers in the area of Measurement and Evaluation in the Faculty of Education, University of Calabar, Calabar. Two research questions were answered using descriptive statistics and one hypothesis tested using chi-square statistical tool. Results showed that there is a significant association on perception of the principals and their deputies on class size and availability of seats and desks as factors responsible for students dropout in the schools in the study area. Findings also showed that other factors apart from classroom conditions were perceived by the principals as the contributing factors to students’ dropout in the study. Conclusion was drawn. Among the recommendations made was that government should ensure that its schools have appropriate class size and enough seats and desks for the students to enhance their motivation to complete school. Keywords: Classroom, conditions, principals, perception, causes, students, dropout.
Kinetic modeling of the electronic response of a dielectric plasma-facing solid
Creators: name: Bronold, Franz X.
name: Fehske, Holger
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present a self-consistent kinetic theory for the electronic response of a plasma-facing dielectric solid. Based on the Poisson equation and two sets of spatially separated Boltzmann equations, one for electrons and ions in the plasma and one for conduction band electrons and valence band holes in the dielectric, the approach gives the quasi-stationary density and potential profiles of the electric double layer forming at the interface due to the permanent influx of electrons and ions from the plasma. The two sets of Boltzmann equations are connected by quantum-mechanical matching conditions for the electron distribution functions and a semi-empirical model for hole injection mimicking the neutralization of ions at the surface. Essential for the kinetic modeling is the ambipolarity inside the wall, leading to an electron-hole recombination condition, and the merging of the double layer with the quasi-neutral, field-free regions deep inside the wall and the plasma. To indicate the feasibility as well as the potential of the approach we apply it to a collisionless, perfectly absorbing interface using intrinsic and extrinsic silicon dioxide and silicon surfaces in contact with a two-temperature hydrogen plasma as an example.
description: 17 pages, 6 figures, accepted version, J. Phys. D: Appl. Phys., at press
Η επίδραση έξι προπονήσεων μέγιστης έντασης διαλειμματικού τύπου στην απόδοση σε δοκιμασίες 50 και 400 m σε απροπόνητους κολυμβητές
Creators: name: Τζιβάνης, Δημήτριος Πασχάλη
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Κολύμβηση
Διαλειμματική προπόνηση υψηλής έντασης
Μυϊκή οξυγόνωση
Swimming
High intensity interval training
Muscle oxygenation

description: Η παρούσα έρευνα εξέτασε τις διαφορές στην απόδοση σε μέγιστες κολυμβητικές δοκιμασίες 50 και 400 m, μετά από έξι προπονήσεις διαλειμματικού τύπου υψηλής έντασης, εκτελούμενες σε διάρκεια 3 εβδομάδων, σε μη προπονημένους αθλητές κολύμβησης. Δώδεκα κολυμβητές και των δύο φύλων εκτέλεσαν πρωτόκολλο άσκησης το οποίο περιλάμβανε 4 σειρές των 50 m μέγιστης έντασης με ενδιάμεσο διάλειμμα 4 min μετά από προθέρμανση εντός νερού. Στην έρευνα συμπεριλήφθηκε ομάδα ελέγχου η οποία εφάρμοσε πρωτόκολλο άσκησης συνεχόμενου τύπου (200m) με ένταση που δεν ξεπερνούσε τους 120 σφυγμούς ανά λεπτό. Αξιολογήθηκε η κολυμβητική επίδοση στις αποστάσεις των 50 και 400 m, η μυϊκή οξυγόνωση στο δελτοειδή μυ και η επαναφορά της καρδιακής συχνότητας στο 1ο min μετά το πέρας των δύο δοκιμασιών. Στην πειραματική ομάδα η επίδοση κατά τη δοκιμασία των 400 m βελτιώθηκε σημαντικά μετά το πέρας των έξι προπονήσεων, ενώ η επίδοση στη δοκιμασία των 50m παρέμεινε σχετικά αμετάβλητη. Οι τιμές της μυϊκής οξυγόνωσης παρουσίασαν σημαντική μείωση στα 50m και σημαντική αύξηση στα 400m. Οι τιμές επαναφοράς της καρδιακής συχνότητας στο 1ο min παρουσίασαν σημαντική μείωση στα 50m, αλλά και στα 400m. Η ομάδα ελέγχου δεν παρουσίασε σημαντική διαφοροποίηση σε καμία από τις μεταβλητές που αξιολογήθηκαν. Από τα ευρήματα προκύπτει πως έξι προπονήσεις διαλειμματικού τύπου υψηλής έντασης είναι ικανές να βελτιώσουν την επίδοση σε δοκιμασία με αερόβιο προσανατολισμό σε αθλητές οι οποίοι δεν συμμετέχουν σε πρόγραμμα τακτικών προπονήσεων κολύμβησης.
description: The current study examined the changes in swimming performance on 50 and 400 m trials, after six sessions of high-intensity interval training, during a three-week training period, in previously trained swimmers. Twelve swimmers of both genders executed the experimental training protocol consisting of 4 repetitions of 50 m front-crawl swimming with maximal intensity, with 4 minutes of passive recovery in between, after a short in-water warm-up. The control group performed a continuous training set (200m) at 120 beats per minute. Performance times, muscle oxygenation of the deltoid muscle, and 1-minute heart rate recovery were assessed. For the experimental group, performance time during the 400 m trial was improved significantly. In contrast, the 50 m performance presented no significant improvement. Muscle oxygenation decreased drastically on the 50m and increased significantly on the 400 m. The 1-minute heart rate recovery significantly decreased after the 50 m and 400 m trials. The control group presented no significant changes in any of the variables examined. In conclusion, six high-intensity interval training sessions over a 3-week training period can improve performance on aerobic trials, in previously trained swimmers.
OpenML: An R Package to Connect to the Machine Learning Platform OpenML
Creators: name: Casalicchio, Giuseppe
name: Bossek, Jakob
name: Lang, Michel
name: Kirchhoff, Dominik
name: Kerschke, Pascal
name: Hofner, Benjamin
name: Seibold, Heidi
name: Vanschoren, Joaquin
name: Bischl, Bernd
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: OpenML is an online machine learning platform where researchers can easily share data, machine learning tasks and experiments as well as organize them online to work and collaborate more efficiently. In this paper, we present an R package to interface with the OpenML platform and illustrate its usage in combination with the machine learning R package mlr. We show how the OpenML package allows R users to easily search, download and upload data sets and machine learning tasks. Furthermore, we also show how to upload results of experiments, share them with others and download results from other users. Beyond ensuring reproducibility of results, the OpenML platform automates much of the drudge work, speeds up research, facilitates collaboration and increases the users' visibility online.
Durability of Cold Formed Steel Structures used in residential and industrial construction
Creators: name: Cooray, Keshali .P
name: Tharmarajah, Gobithas
Publisher: name: figshare
Year: 2023
Subjects: Construction engineering
Construction materials
Structural engineering

description: Cold formed steel is an attractive alternative to traditional construction materials such as masonry and concrete owing to the advantages such as easy fabrication, light weight, reusability of the material and higher level of recyclability. Cold formed steel buildings are also appreciated for better insulation and lower energy consumption during operation. However, durability of the steel was the main concern for stakeholders as corrosive conditions can damage the material and deteriorate the condition of the building. Therefore, it is important to understand the durability of cold formed steel coated with zinc and zinc alloys. In this study, experimental data related to durability studies available in literature was collected and presented through an analysis. The data obtained from literature indicate that if the building envelop was designed appropriately to protect the steel from exposure conditions, the steel can fulfil the expected service life of residential buildings independent of environmental and climatic conditions. Therefore, this study helps to alleviate concerns regarding durability of cold formed steel in residential construction.
Il diritto non abita pi� qui: la crisi degli studi giuridici tra dati e domande = The law does not live here anymore: the legal education crisis between data and questions
Creators: name: Caso, Roberto
Publisher: name: Universit� degli studi di Trento
Year: 2016

description: Starting from data on law school enrollment and lawyers employment rate the author poses some questions about the legal education crisis in Italy.
Giant spin splitting and $0 - π$ Josephson transitions from the Edelstein effect in quantum spin-Hall insulators
Creators: name: Tkachov, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Hybrid structures of quantum spin-Hall insulators (QSHIs) and superconductors (Ss) present a unique opportunity to access dissipationless topological states of matter, which, however, is frequently hindered by the lack of control over the spin polarization in QSHIs. We propose a very efficient spin-polarization mechanism based on the magnetoelectric (Edelstein) effect in superconducting QSHI structures. It acts akin to the Zeeman splitting in an external magnetic field, but with an effective $g$-factor of order of 1000, resulting in an unprecedented spin-splitting effect. It allows a magnetic control of the QSHI/S hybrids without destroying superconductivity. As an example, we demonstrate a recurrent crossover from $Φ_0$ - to $Φ_0/2$ - periodic oscillations of the Josephson current in an rf superconducting quantum interference device ($Φ_0=h/2e$ is the magnetic flux quantum). The predicted period halving is a striking manifestation of $0-π$ Josephson transitions with a superharmonic $π$-periodic current-phase relationship at the transition. Such controllable $0-π$ transitions may offer new perspectives for dissipationless spintronics and engineering flux qubits.
description: 5 pages, 4 figures
Salt samples from the built environment (KIK-IRPA).kmz
Creators: name: Godts, Sebastiaan
Publisher: name: figshare
Year: 2023
Subjects: Cartography and digital mapping

description: Map showing the locations where drilled samples where taken for ion analysis to determine the salt content in 338 sites (monuments, archeological sites, murals, sculptures). Data obtained by the Royal Institute for Cultural Heritage (https://www.kikirpa.be) as part of the project PREDICT (PHASE TRANSITIONS OF SALTS UNDER CHANGING CLIMATIC CONDITIONS) (https://predict.kikirpa.be)
A Toolkit for Better Understanding of User Engagements with Online Content
Creators: name: Hamilton, Jennifer
Publisher: name: Zenodo
Year: 2023
Subjects: Online content
0nline interaction

description: The user comments to online content provide a rich source of information on how and why users are engaging with the material and their experiences with the material, the platform, and the institution. This toolkit uses thematic discourse analysis to provide a rigorous and repeatable framework to help determine what users are responding to, their motivations for responding, as well as how involved with the material users are. The toolkit also reveals if discussions are taking place amongst users as well as what feedback users are providing and the effects of institution responses on users.
description: Doctoral reserch showcase
Influence of the connection between forming die and heatpipe on the heat transfer
Creators: name: Behrens, Bernd-Arno
name: Brunotte, Kai
name: Peddinghaus, Julius
name: Laeger, René
Publisher: name: Ostrava : TANGER Ltd.
Year: 2022
Subjects: subject: forging tools
subject: heat transfer
subject: Heatpipes
subject: thermal conduction
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Hot forming tools are exposed to cyclically changing thermal loads. These conditions are caused by the heat exchange between tool and workpiece during forming followed by spray cooling. This can lead to crack initiation and tool failure. A continuous cooling with heatpipes (HP) inside the active tool components could prevent this. HP use a circular flow of a cooling fluid inside a closed tube, often made of copper. Previous studies showed an influence of the connection by thermal paste between the forming die and the HP, its orientation, as well as its inner surface structure. The use of paste proved essential for closing the contact by filling the microscopic air pockets between the surfaces. Only sintered inner structures can be used for force fit, since others are damaged by deformation and thus lose their efficiency. This research paper deals with the influence of the form and force fit between die and HP. To test the impact, HP were connected with heated model dies on one side and an aluminium block (AB) on the other. Thermocouples were used to monitor the temperature of both, the AB and the model dies. The measured temperature and time difference, the weight and the thermal capacity of the AB were used to calculate the heat flow. Different inner surface structures of HP were varied in addition to their fitting type with the model die. The best heat transfer was achieved by using HP with sintered inner structure and force-fit, resulting in nearly full-surface contact.
Educating Learners with Special needs - New trends.pdf
Creators: name: Inyang, Mary  Imo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: The goal of education is full participation by everyone regardless of background, social economic status, physical disability or mental limitation. Unfortunately, it wasn't until 1975 that this value was translated into actual practice for all students. with disabilities in the United States...
Empirical approach for the residual flexural tensile strength of steel fiber-reinforced concrete based on notched three-point bending tests
Creators: name: Oettel, Vincent
name: Schulz, Markus
name: Haist, Michael
Publisher: name: Malden, Mass. : Wiley
Year: 2022
Subjects: subject: concrete
subject: database
subject: empirical approach
subject: notched 3-point bending test
subject: residual flexural tensile strength
subject: steel fiber
subject: Dewey Decimal Classification::600 | Technik::690 | Hausbau, Bauhandwerk

description: When designing steel fiber-reinforced concrete, for example, according to Model Code 2010, the residual flexural strength values must be specified as fundamental properties. It is often difficult to establish the relationship between residual flexural strength values and the required dosage of steel fibers depending on the type of steel fibers and the concrete quality. For an estimation of the presumably necessary dosage of steel fibers, various empirical approaches exist for the approximate determination of the residual flexural strength values, which, however, are based on different tests and have been almost exclusively been derived on the basis of few or “own” test results of the respective institute. For this reason, the validity of the respective approximation approach is often limited. Using the bending beam database “Steel Fibre Reinforced Concrete”, selected approaches were systematically analyzed and an improved approach for determining the residual flexural strength values of steel fiber-reinforced concrete was developed.
Investigations on the consolidation of TNM powder by admixing different elemental powders
Creators: name: Heymann, Adrian
name: Peddinghaus, Julius
name: Brunotte, Kai
name: Behrens, Bernd-Arno
Publisher: name: Ostrava : TANGER Ltd.
Year: 2022
Subjects: subject: mechanical properties
subject: Powder compacting
subject: powder mixture
subject: TiAl powder
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: In the conventional powder metallurgy (PM) process route, finished components are produced from metallic powder materials by pressing at room temperature followed by pressureless sintering in a furnace. This simple method for fast and cost-effective processing is not suitable for y-based titanium aluminides. Due to their brittleness, these cannot be compacted in the conventional way. In order to qualify this group of alloys for the PM route, a possible solution is the addition of elemental titanium or aluminum powder. In this study, the basis is commercially available pre-alloyed TiAI44-4Nb-0.7Mo-0.1B (TNM) powder with high application potential for example in the aerospace industry. Investigations are carried out to determine the influence of different admixtures of elemental powders on the compaction result and the resulting mechanical properties. The TNM powder is mixed with pure titanium and aluminum powders and pressed to a compact using graphite as tool lubricant. The results show that the admixture of elemental powders enables the consolidation of TNM powder. However, depending on the load applied, a certain minimum proportion of the respective elemental powder is necessary to produce a compact. Furthermore, a significant influence on the relative density as well as the strength of the pressed product can be observed.
Simultaneous Automatic Picking and Manual Picking Refinement for First-Break
Creators: name: Bai, Haowen
name: Zhao, Zixiang
name: Zhang, Jiangshe
name: Cui, Yukun
name: Zhang, Chunxia
name: Guo, Zhenbo
name: Wang, Yongjun
Publisher: name: arXiv
Year: 2025
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: First-break picking is a pivotal procedure in processing microseismic data for geophysics and resource exploration. Recent advancements in deep learning have catalyzed the evolution of automated methods for identifying first-break. Nevertheless, the complexity of seismic data acquisition and the requirement for detailed, expert-driven labeling often result in outliers and potential mislabeling within manually labeled datasets. These issues can negatively affect the training of neural networks, necessitating algorithms that handle outliers or mislabeled data effectively. We introduce the Simultaneous Picking and Refinement (SPR) algorithm, designed to handle datasets plagued by outlier samples or even noisy labels. Unlike conventional approaches that regard manual picks as ground truth, our method treats the true first-break as a latent variable within a probabilistic model that includes a first-break labeling prior. SPR aims to uncover this variable, enabling dynamic adjustments and improved accuracy across the dataset. This strategy mitigates the impact of outliers or inaccuracies in manual labels. Intra-site picking experiments and cross-site generalization experiments on publicly available data confirm our method's performance in identifying first-break and its generalization across different sites. Additionally, our investigations into noisy signals and labels underscore SPR's resilience to both types of noise and its capability to refine misaligned manual annotations. Moreover, the flexibility of SPR, not being limited to any single network architecture, enhances its adaptability across various deep learning-based picking methods. Focusing on learning from data that may contain outliers or partial inaccuracies, SPR provides a robust solution to some of the principal obstacles in automatic first-break picking.
Functionalisation of the Boundary Layer by Deformation-Induced Martensite on Bearing Rings by means of Bulk Metal Forming Processes
Creators: name: Behrens, Bernd-Arno
name: Brunotte, Kai
name: Wester, Hendrik
name: Peddinghaus, Julius
name: Till, Michael
Publisher: name: Ostrava : TANGER Ltd.
Year: 2022
Subjects: subject: Bulk metal forming
subject: local martensite formation
subject: phase transformation
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: During cold forming of metastable austenitic steels, a strength-increasing phase transformation induced by externally superimposed stresses occurs in addition to strain hardening. The effect of deformation-induced martensite formation has so far not been utilized industrially in the area of bulk forming, but could be suitable for the production of highly-loaded components in oxidative atmospheres. The aim of this study is the analysis of local phase transformations in metastable austenitic steels in the boundary layer of bulk formed components. For this purpose, the relationship between the process conditions occurring during bulk metal forming and the resulting martensitic phase fraction was determined. Cylinder compression tests are carried out in which the influence of various process parameters can be investigated. These include forming temperature, true plastic strain and forming speed. In a quantitative measurement by means of a magnetic induction process, local martensite formation is determined and hardness measurements are carried out. The recorded flow stress curves are implemented in a numerical simulation. Furthermore, the influence of different tool surface topographies on the contact conditions of the workpiece-tool system is characterized by means of ring compression tests. With the numerical simulations and experimentally obtained results, a surface hardening process for bearing rings is designed. The relationship between local true plastic strain and deformation-induced martensite development is explained by material flow simulations, taking into account the process route for manufacturing the bearing ring and the varying friction factors.
A complexity/fidelity susceptibility g-theorem for AdS$_3$/BCFT$_2$
Creators: name: Flory, Mario
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use a recently proposed holographic Kondo model as a well-understood example of AdS/boundary CFT (BCFT) duality, and show explicitly that in this model the bulk volume decreases along the RG flow. We then obtain a proof that this volume loss is indeed a generic feature of AdS/BCFT models of the type proposed by Takayanagi in 2011. According to recent proposals holographically relating bulk volume to such quantities as complexity or fidelity susceptibility in the dual field theory, this suggests the existence of a complexity or fidelity susceptibility analogue of the Affleck-Ludwig g-theorem, which famously states the decrease of boundary entropy along the RG flow of a BCFT. We comment on this possibility.
description: 24 pages, 4 figures v2: added citations and minor clarifications
Hairs of discrete symmetries and gravity
Creators: name: Choi, Kang Sin
name: Kim, Jihn E.
name: Kyae, Bumseok
name: Nam, Soonkeon
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gauge symmetries are known to be respected by gravity because gauge charges carry flux lines, but global charges do not carry flux lines and are not conserved by gravitational interaction. For discrete symmetries, they are spontaneously broken in the Universe, forming domain walls. Since the realization of discrete symmetries in the Universe must involve the vacuum expectation values of Higgs fields, a string-like configuration (hair) at the intersection of domain walls in the Higgs vacua can be realized. Therefore, we argue that discrete charges are also respected by gravity.
description: 9 pages,9 figures
Past of a quantum particle: Common sense prevails
Creators: name: Englert, Berthold-Georg
name: Horia, Kelvin
name: Dai, Jibo
name: Len, Yink Loong
name: Ng, Hui Khoon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze Vaidman's three-path interferometer with weak path marking [Phys. Rev. A 87, 052104 (2013)] and find that common sense yields correct statements about the particle's path through the interferometer. This disagrees with the original claim that the particles have discontinuous trajectories at odds with common sense. In our analysis, "the particle's path" has operational meaning as acquired by a path-discriminating measurement. For a quantum-mechanical experimental demonstration of the case, one should perform a single-photon version of the experiment by Danan et al. [Phys. Rev. Lett. 111, 240402 (2013)] with unambiguous path discrimination. We present a detailed proposal for such an experiment.
description: v1: 20 pages, 15 figures; v2 and v3: 20 pages, 16 figures, text and figures edited, references updated
Floquet Analysis of Kuznetsov--Ma breathers: A Path Towards Spectral Stability of Rogue Waves
Creators: name: Cuevas-Maraver, J.
name: Kevrekidis, P. G.
name: Frantzeskakis, D. J.
name: Karachalios, N. I.
name: Haragus, M.
name: James, G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: In the present work, we aim at taking a step towards the spectral stability analysis of Peregrine solitons, i.e., wave structures that are used to emulate extreme wave events. Given the space-time localized nature of Peregrine solitons, this is a priori a non-trivial task. Our main tool in this effort will be the study of the spectral stability of the periodic generalization of the Peregrine soliton in the evolution variable, namely the Kuznetsov--Ma breather. Given the periodic structure of the latter, we compute the corresponding Floquet multipliers, and examine them in the limit where the period of the orbit tends to infinity. This way, we extrapolate towards the stability of the limiting structure, namely the Peregrine soliton. We find that multiple unstable modes of the background are enhanced, yet no additional unstable eigenmodes arise as the Peregrine limit is approached. We explore the instability evolution also in direct numerical simulations.
Entropy product of rotating black holes in three-dimensions
Creators: name: Yekta, Davood Mahdavian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has been shown that the product of the entropies of the inner Cauchy and outer event horizon of the charged axisymmetric and stationary black holes is a universal formula, which is independent of the black hole's mass. In this paper, we investigate this universality for the two kinds of rotating black holes in the three-dimensional gravity models. In fact, we study the spacelike warped anti-de Sitter black hole in the new massive gravity and the Ba~nados, Teitelboim, and Zanelli black hole in the minimal massive gravity. We show that this rule is held in the first theory. By contrast, in the latter case which includes a holographic gravitational anomalous term, we obtain that the universality does not work and the product depends on the mass. As a complement to the above verification, we also study the thermodynamic properties of these black holes.
description: 12 pages, some refs. added and accepted for publication in Phys. Rev. D
$S$-wave resonance contributions to the $B^0_{(s)}\to η_c{(2S)}π^+π^-$ in the perturbative QCD factorization approach
Creators: name: Ma, Ai-Jun
name: Li, Ya
name: Wang, Wen-Fei
name: Xiao, Zhen-Jun
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By employing the perturbative QCD (PQCD) factorization approach, we study the quasi-two-body $B^0_{(s)}\to η_c{(2S)}π^+π^-$ decays, where the pion pair comes from the $S$-wave resonance $f_0(X)$. The Breit$-$Wigner formula for the $f_0(500)$ and $f_0(1500)$ resonances, and the Flatté model for the $f_0(980)$ resonance are adopted to parameterize the time-like scalar form factors in the two-pion distribution amplitudes. As a comparison, Bugg's model is also used for the wide $f_0(500)$ in this work. For decay rates, we found the following PQCD predictions: (a) $ {\cal B}(B^0_s\to η_c(2S) f_0(X)[π^+π^-]_s )=\left ( 2.67^{+1.78}_{-1.08} \right )\times 10^{-5}$ when the contributions from $f_0(980)$ and $f_0(1500)$ are all taken into account; (b) ${\cal B}(B^0\to η_c(2S) f_0(500)[π^+π^-]_s)= \left ( 1.40 ^{+0.92}_{-0.56} \right ) \times 10^{-6}$ in the Breit-Wigner model and $ \left ( 1.53 ^{+0.97}_{-0.61} \right ) \times 10^{-6}$ in the Bugg's model.
description: 7 pages, 3 figures, Some modifications. Final version to be published in Chinese Physics C
High Resolution Surface Reconstruction of Cultural Heritage Objects Using Shape from Polarization Method
Creators: name: Mortazavi, F.S.
name: Saadatseresht, M.
Publisher: name: Katlenburg-Lindau : Copernicus Publications
Year: 2022
Subjects: subject: Architectural Photogrammetry
subject: Polarizing Filter
subject: Surface Normal
subject: Three-dimensional Reconstruction
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Nowadays, three-dimensional reconstruction is used in various fields like computer vision, computer graphics, mixed reality and digital twin. The three- dimensional reconstruction of cultural heritage objects is one of the most important applications in this area which is usually accomplished by close range photogrammetry. The problem here is that the images are often noisy, and the dense image matching method has significant limitations to reconstruct the geometric details of cultural heritage objects in practice. Therefore, displaying high-level details in three-dimensional models, especially for cultural heritage objects, is a severe challenge in this field. In this paper, the shape from polarization method has been investigated, a passive method with no drawbacks of active methods. In this method, the resolution of the depth maps can be dramatically increased using the information obtained from the polarization light by rotating a linear polarizing filter in front of a digital camera. Through these polarized images, the surface details of the object can be reconstructed locally with high accuracy. The fusion of polarization and photogrammetric methods is an appropriate solution for achieving high resolution three-dimensional reconstruction. The surface reconstruction assessments have been performed visually and quantitatively. The evaluations showed that the proposed method could significantly reconstruct the surfaces' details in the three-dimensional model compared to the photogrammetric method with 10 times higher depth resolution.
Complementary response of static spin-stripe order and superconductivity to non-magnetic impurities in cuprates
Creators: name: Guguchia, Z.
name: Roessli, B.
name: Khasanov, R.
name: Amato, A.
name: Pomjakushina, E.
name: Conder, K.
name: Uemura, Y. J.
name: Tranquada, J. M.
name: Keller, H.
name: Shengelaya, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report muon-spin rotation and neutron-scattering experiments on non-magnetic Zn impurity effects on the static spin-stripe order and superconductivity of the La214 cuprates. Remarkably, it was found that, for samples with hole doping x = 1/8, the spin-stripe ordering temperature T_so decreases linearly with Zn doping y and disappears at around y = 4\%, demonstrating a high sensitivity of static spin-stripe order to impurities within a CuO_2 plane. Moreover, T_so is suppressed by Zn in the same manner as is the superconducting transition temperature T_c for samples near optimal hole doping. This surprisingly similar sensitivity suggests that the spin-stripe order is dependent on intertwining with superconducting correlations.
description: 9 pages and 9 figures
Didattica orientata al prodotto della produzione scritta e apprendenti principianti. Uno studio longitudinale
Creators: name: Torsani, Simone
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Writing; longitudinal case study; beginner learners; apprendenti principianti; product-oriented approach

description: Writing is becoming an important activity even at lower levels of second language proficiency. Beginners’ writing, however, is partly eccentric with respect to that of advanced or intermediate learners: for example, beginners struggle harder with grammar when writing because of their limited language proficiency. It is therefore important to make methodological choices that are appropriate for this group of learners. The paper reports on a longitudinal case study of a beginner learner of Italian working on second language writing following a product-oriented approach in which linguistic and writing skills are strongly integrated. The findings show that a product-oriented approach facilitated her in working with both grammar and writing, thus proving potentially appropriate for beginner learners. Implications for teaching and further research are discussed.
description: Studi di glottodidattica, V. 8, N. 1 (2023)
L’uso del metadiscorso nella scrittura accademica in L1 e L2: il caso di apprendenti sinofoni
Creators: name: Ni, Yang
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Metadiscourse; academic writing; Chinese learners

description: Metadiscourse refers to the devices or resources which the writers use to organize the discourse, engage the audiences, and express the writers’ attitude. The study, based on a corpus consisting of 20 essays, including 10 in Chinese and 10 in Italian, in order to observe 1) how the various metadiscoursive devices are used in academic writing in Chinese and Italian by university students from China; 2) if and there may be interference from L1, the paper concludes with some implications to teach academic writing in Italian for Chinese learners.
description: Studi di glottodidattica, V. 8, N. 1 (2023)
L’insegnamento interculturale del russo come lingua straniera: problemi vecchi e nuovi
Creators: name: Torresin, Linda
Publisher: name: Studi di glottodidattica
Year: 2023
Subjects: Russian as a foreign language; Intercultural approach; Russian culture; Cultural essentialism; Textbooks

description: The article explores the issues of teaching Russian as a foreign language in the intercultural context. In particular, it focuses on the theoretical level, where certain interpretations of the intercultural approach may give rise to cultural essentialism. The same cultural essentialism is found in the representations of the Russian world offered by textbooks, as well as in certain forms of current censorship and ostracism against Russian culture.
description: Studi di glottodidattica, V. 8, N. 1 (2023)
Framing of the Proposed Creation of the Autonomous Region of the Cordillera by Community Newspapers
Creators: name: Fontanilla, Giovani Joy N.
Publisher: name: Zenodo
Year: 2020

description: Understanding the nature of media framing is pivotal to setting governmentagenda and public debate. It has a big influence on the salience of key information and interpretation of societal issues. This research draws on framing as an approach to understanding media discourse and communication. It looked into community newspapers' framing of the proposed creation of the Autonomous Region of the Cordillera (ARC), a three-decade-old proposal in the region covered by the media. Using Polkinghorne's paradigmatic analysis of narratives, this study revealed howCordillera was framed as a region. The framing of the proposed creation of the ARC was also uncovered through the Labovian model of narrative analysis. Based on the framing used in their reportage, community newspapers' view of Cordillera as a region and their underlying position on the proposed regional autonomy in the region surfaced.

The findings of the study show that Cordillera is generally viewed as anunderdeveloped region that has been struggling to attain autonomy. Cordillera was framed as a region predetermined to become autonomous; an underdeveloped and neglected region; a region clamoring for regional autonomy; and a region with a diverse population. Further findings reveal that community newspapers have a favorable stance on the proposed creation of the ARC. Although they are for regional autonomy, they deem it tentative considering that the proposal is contingent on national government action and public understanding and approval. This position is evinced in the frames used in the news coverage of the proposed creation of the ARC. These are that Cordillera needs regional autonomy; that the proposed creation of the ARC needs government endorsement and action; and that it needs the Cordilleran public's support and approval.

This study offers a new approach in defining and understanding framing – that is, by using narrative analysis as framework and methodology. By understanding the community newspapers' rhetoric through an analysis of their news frames, we are able to get a grasp of the meanings or interpretations that they contribute to the marketplace of ideas and convey to their audiences.
Presence of mixed modes in red giants in binary systems
Creators: name: Themeßl, Nathalie
name: Hekker, Saskia
name: Elsworth, Yvonne
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The frequencies of oscillation modes in stars contain valuable information about the stellar properties. In red giants the frequency spectrum also contains mixed modes, with both pressure (p) and gravity (g) as restoring force, which are key to understanding the physical conditions in the stellar core. We observe a high fraction of red giants in binary systems, for which g-dominated mixed modes are not pronounced. This trend leads us to investigate whether this is specific for binary systems or a more general feature. We do so by comparing the fraction of stars with only p-dominated mixed modes in binaries and in a larger set of stars from the APOKASC sample. We find only p-dominated mixed modes in about 50% of red giants in detached eclipsing binaries compared to about 4% in the large sample. This could indicate that this phenomenon is tightly related to binarity and that the binary fraction in the APOKASC sample is about 8%.
description: 3 pages, 1 figure, 1 table, to appear in the proceedings of the joint TASC2/KASC9/SPACEINN/HELAS8 conference "Seismology of the Sun and the Distant Stars 2016"
Space-time supersymmetry in WZW-like open superstring field theory
Creators: name: Kunitomo, Hiroshi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate space-time supersymmetry in the WZW-like open superstring field theory, whose complete action was recently constructed. Starting from a natural space-time supersymmetry transformation at the linearized level, we construct a nonlinear transformation so as to keep the complete action invariant. Then we show that the transformation satisfies the supersymmetry algebra up to an extra transformation, unphysical on the asymptotic string fields. This guarantees that the constructed transformation in fact acts as space-time supersymmetry on the physical S-matrix.
description: 23 pages; ver2: a proof of triviality of extra symmetries are added; ver3: explanation for asymptotic physical states is improved; ver4: English is improved