cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Matching N3LO QCD calculations to parton showers
Creators: name: Prestel, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The search for new interactions and particles in high-energy collider physics relies on precise background predictions. This has led to many advances in combining precise fixed-order cross-section calculations with detailed event generator simulations. In recent years, fixed-order QCD calculations of inclusive cross sections at N3LO precision have emerged, followed by an impressive progress at producing differential results. Once differential results become publicly available, it would be prudent to embed these into event generators to allow the community to leverage these advances. This note offers some concrete thoughts on ME+PS matching at third order in QCD. As a method for testing these thoughts, a toy calculation of $e^+e^-\rightarrow u \bar u$ at $\mathcal{O}(α_s^3)$ is constructed, and combined with an event generator through unitary matching. The toy implementation may serve also as blueprint for high-precision QCD predictions at future lepton colliders. As a byproduct of the N3LO matching formula, a new NNLO+PS formula for processes with "additional" jets is obtained.
description: 19 pages main text + detailed appendices
Implementation of a medium-modified parton shower algorithm
Creators: name: Armesto, N.
name: Cunqueiro, L.
name: Salgado, C. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a Monte Carlo implementation of medium-induced gluon radiation in the final-state branching process. Medium effects are introduced through an additive term in the splitting functions. We have implemented such modification within PYTHIA. We show the medium effects on the hump-backed plateau, and the transverse momentum and angular distributions with respect to the parent parton. As expected, with increasing medium densities there is an increase (decrease) of partons with small (large) momentum fraction, and angular broadening is observed. The effects on the transverse-momentum distributions are more involved, with an enhancement of low- and intermediate-$p_T$ partons and a decrease at large $p_T$, which is related to energy conservation, and to the lack of momentum exchange with the medium in our approach.
description: LaTeX, 6 pages, 2 eps figures; proceedings of the 3rd International Conference on Hard and Electromagnetic Probes in High-Energy Nuclear Collisions - Hard Probes 2008 (Illa de A Toxa, Spain, June 8th-14th 2008)
Hydrodynamic Processes in Young Binary Systems as a Source of Cyclic Variations of Circumstellar Extinction
Creators: name: Sotnikova, N. Ya.
name: Grinin, V. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Hydrodynamic models of a young binary system accreting matter from the remnants of a protostellar cloud have been calculated by the SPH method. It is shown that periodic variations in column density in projection onto the primary component take place at low inclinations of the binary plane to the line of sight. They can result in periodic extinction variations. Three periodic components can exist in general case. The first component has a period equal to the orbital one and is attributable to the streams of matter penetrating into the inner regions of the binary. The second component has a period that is a factor of 5-8 longer than the orbital one and is related to the density waves generated in a circumbinary (CB) disk. The third, longest period is attributable to the precession of the inner asymmetric region of CB disk. The relationship between the amplitudes of these cycles depends on the model parameters as well as on the inclination and orientation of the binary in space. We show that at a dust-to-gas ratio of 1:100 and and a mass extinction coefficient of 250 cm$^2$ g$^{-1}$, the amplitude of the brightness variations of the primary component in the V-band can reach $1^m$ at a mass accretion rate onto the binary components of $10^{-8} M_{\odot}$ yr$^{-1}$ and a $10^{\rm o}$ inclination of the binary plane to the line of sight. We discuss possible applications of the model to pre-main-sequence stars.
description: 13 pages, 6 figures, published in Astronomy Letters (v.33, 2007)
A Rare Case of Unilateral Eye Proptosis with Abducens Nerve Palsy Secondary To Carotid Cavernous Fistula- A Case Report
Creators: name: Muhamad Asri, Azzahra
name: Murat, Haizul Ikhwan
Publisher: name: Zenodo
Year: 2021

description: Introduction: We report a rare case of unilateral eye proptosis with abducens nerve palsy secondary to carotid cavernous fistula. Case description: A 17-year old malay male with underlying allergic rhinitis presented with a 1-month history of left eye swelling and redness. Associated with double vision and pain during eye movement.Otherwise, no symptoms of raised intracranial pressure.On examination, vision in both eyes were 6/9, RAPD negative and he had limitation in abduction and diplopia on left gaze. There was moderately severe proptosis with corkscrew vessels temporally over the conjunctiva. Posterior segment examination was normal. An urgent CT scan brain and orbit with contrast was done and showed enlarged superior ophthalmic vein as well as left cavernous sinus enlargement and bulky extraocular muscles suggestive of carotid cavernous fistula. No evidence of space occupying lesion.Then proceed with CT angiography showed abnormal dilatation of paraophthalmic segment of the left internal cerebral artery (ICA) with direct communication with the cavernous sinus seen. This carotid cavernous fistula leads to bulging of the left cavernous sinus. The carotid cavernous fistula flows through the left superior ophthalmic vein (SOV) before draining into the left angular and inferior palpebrae veins. These draining veins are all engorged and dilated. No filling defect seen. He was co-managed with the neurosurgical team for digital subtraction angiography and embolization. Post embolization one month revealed improvement of left eye proptosis and lateral rectus movement. Conclusion: Neuroimaging for unilateral eye proptosis with abducens nerve palsy plays a vital role in the early detection of a relatively rare event- carotid cavernous fistula. Early detection with prompt treatment will be able to avoid further complications.
Computerspielrezension: Woran erkennt man eine gelungene Kinderspiel-App?
Creators: name: Kaiser-Fallent, Karina
Publisher: name: Medienimpulse
Year: 2020

description: Kurz gesagt: Eine gelungene Spiele-App macht der Alterszielgruppe Spaß, ist aus pädagogischer Sicht unbedenklich und bietet Förderpotential. Karina Fallen recherchiert für die MEDIENIMPULSE ...
description: Medienimpulse, Bd. 58 Nr. 1 (2020): 1/2020 – Lernen angesichts von Robotik und Computational Thinking
title: Die Sicherheit auf Baustellen ist keine Angelegenheit ohne den Bauherren – Aktivitäten und Erfahrungen eines Chemiebetriebes
Creators: name: Schwarz, Wolf-Michael
Publisher: name: Bauhaus-Universität Weimar
Year: 2001
Subjects: subject: Arbeitsschutz
subject: Baustelle
subject: Chemische Industrie
subject: Deutschland / Baustellenverordnung
subject: 620

description: Erfahrungen belegen, dass gemäß des Grundsatzes – „Arbeitssicherheit ist Chefsache!“ – Baustellensicherheit ohne den Bauherren nicht zu machen ist und die im „Bauherren-Unternehmen“ praktizierte Sicherheitskultur (identisch mit dem Sachverhalt, Sicherheit zu wollen!) maßgebliche Voraussetzung für ein erfolgreiches Sicherheitsenga-gement des Bauherren ist. Dieses Engagement beginnt bei der Kontraktorenauswahl, setzt sich über eine Sicherheitsleistungen berücksichtigende Gestaltung von Verträgen mit dem HAN und den NAN fort und umfasst darüber hinaus die gesamte Palette konzeptioneller und operativer Führungsaufgaben, die zu bearbeiten sind, um auf der Baustelle Gefährdungen für Leben und Gesundheit sowie sonstige Schadenereignisse zu vermeiden. Der Einsatz eines fachkompetenten und mit den notwendigen Befugnissen ausgestatteten „Si-Ge-Ko“ ist ein weiterer ganz wichtiger Erfolgsgarant für effiziente Sicherheitsarbeit, während für den nach BaustellV gleichfalls erforderlichen Si-Ge-Plan eine adäquate Bewertung nicht bestätigt werden kann.
description: 2. Fachtagung Sicherheit auf Baustellen: mit einem Spezialteil von Beiträgen zu Qualität und Sicherheit auf Baustellen und im Schweißbetrieb ; anlässlich des Ausscheidens von Herrn Prof. Dr.-Ing. habil. Karl-Dieter Röbenack aus dem aktiven Berufsleben, p. 15
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 3, 2001, p. 15
Cosmic Ray Small Scale Anisotropies in Slab Turbulence
Creators: name: Kuhlen, Marco
name: Mertsch, Philipp
name: Phan, Vo Hong Minh
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the standard picture of cosmic ray transport the propagation of charged cosmic rays through turbulent magnetic fields is described as a random walk with cosmic rays scattering on magnetic field turbulence. This is in good agreement with the highly isotropic cosmic ray arrival directions as this diffusion process effectively isotropizes the cosmic ray distribution. High-statistics observatories like IceCube and HAWC have however observed significant deviations from isotropy down to very small angular scales. This is in strong tension with this standard picture of cosmic ray propagation. While large scale multipoles arise naturally, for example due to the earth's motion relative to the isotropic cosmic ray distribution, there is no intuitive mechanism to account for the observed anisotropies at smaller angular scales. By relaxing one of the standard assumptions of quasi linear theory and treating correlations between fluxes of cosmic rays from different directions explicitly we show that higher multipoles also are to be expected from particle propagation through turbulent magnetic fields. We present a first analytical calculation of the angular power spectrum assuming a physically motivated model of the magnetic field turbulence and find good agreement with numerical simulations.
description: 8 pages, 3 figures; Proceedings of the 37th International Cosmic Ray Conference (ICRC2021)
title: Актуальные вопросы в развитии агропромышленного, химического и лесного комплексов: сборник тезисов научно-практической конференции молодых ученых и специалистов
Creators: name: Новгородский государственный университет имени Ярослава Мудрого
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Сборник содержит тезисы научно-практической конференции, отражающие взгляд молодых ученых на современное состояние, тенденции и направления инновационного развития агропромышленного, химического и лесного комплексов, их перспектив развития.
Предназначено для преподавателей вузов, специалистов предприятий, студентов, аспирантов, соискателей ученых степеней, а также для всех исследователей, занимающихся данной проблематикой.
Rezension: „Das flüssige Land“ von Raphaela Edelbauer.
Creators: name: Zoidl, Veronika
Publisher: name: Medienimpulse
Year: 2020

description: Raphaela Edelbauer schickt ihre Protagonistin auf eine Reise in ein Paralleluniversum namens Groß-Einland. Dort ticken nicht nur die Uhren anders ...
description: Medienimpulse, Bd. 58 Nr. 1 (2020): 1/2020 – Lernen angesichts von Robotik und Computational Thinking
Deep Learning-based Type Identification of Volumetric MRI Sequences
Creators: name: de Mello, Jean Pablo Vieira
name: Paixão, Thiago M.
name: Berriel, Rodrigo
name: Reyes, Mauricio
name: Badue, Claudine
name: De Souza, Alberto F.
name: Oliveira-Santos, Thiago
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The analysis of Magnetic Resonance Imaging (MRI) sequences enables clinical professionals to monitor the progression of a brain tumor. As the interest for automatizing brain volume MRI analysis increases, it becomes convenient to have each sequence well identified. However, the unstandardized naming of MRI sequences makes their identification difficult for automated systems, as well as makes it difficult for researches to generate or use datasets for machine learning research. In the face of that, we propose a system for identifying types of brain MRI sequences based on deep learning. By training a Convolutional Neural Network (CNN) based on 18-layer ResNet architecture, our system can classify a volumetric brain MRI as a FLAIR, T1, T1c or T2 sequence, or whether it does not belong to any of these classes. The network was evaluated on publicly available datasets comprising both, pre-processed (BraTS dataset) and non-pre-processed (TCGA-GBM dataset), image types with diverse acquisition protocols, requiring only a few slices of the volume for training. Our system can classify among sequence types with an accuracy of 96.81%.
title: Welche Chance hat der Arbeitsschutz am rauen Baumarkt?
Creators: name: Bargstädt, Hans-Joachim
Publisher: name: Bauhaus-Universität Weimar
Year: 2001
Subjects: subject: Arbeitsschutz
subject: Baustelle
subject: Baumarkt
subject: Baubetriebslehre
subject: 620

description: Einflüsse auf den Arbeitsschutz aus den konjunkturellen Bedingungen der Bauwirtschaft: - Arbeitsschutz und seine Bedeutung - Besonderheiten am aktuellen Baumarkt - Baukonjunktur als Anlass einer Kritik - Struktur des Baumarktes - Zukunftsfähiges Bauen
description: 2. Fachtagung Sicherheit auf Baustellen: mit einem Spezialteil von Beiträgen zu Qualität und Sicherheit auf Baustellen und im Schweißbetrieb ; anlässlich des Ausscheidens von Herrn Prof. Dr.-Ing. habil. Karl-Dieter Röbenack aus dem aktiven Berufsleben, p. 9
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 3, 2001, p. 9
Efficient Quality Control of Whole Slide Pathology Images with Human-in-the-loop Training
Creators: name: Patil, Abhijeet
name: Diwakar, Harsh
name: Sawant, Jay
name: Kurian, Nikhil Cherian
name: Yadav, Subhash
name: Rane, Swapnil
name: Bameta, Tripti
name: Sethi, Amit
Publisher: name: arXiv
Year: 2024
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Histopathology whole slide images (WSIs) are being widely used to develop deep learning-based diagnostic solutions, especially for precision oncology. Most of these diagnostic softwares are vulnerable to biases and impurities in the training and test data which can lead to inaccurate diagnoses. For instance, WSIs contain multiple types of tissue regions, at least some of which might not be relevant to the diagnosis. We introduce HistoROI, a robust yet lightweight deep learning-based classifier to segregate WSI into six broad tissue regions -- epithelium, stroma, lymphocytes, adipose, artifacts, and miscellaneous. HistoROI is trained using a novel human-in-the-loop and active learning paradigm that ensures variations in training data for labeling-efficient generalization. HistoROI consistently performs well across multiple organs, despite being trained on only a single dataset, demonstrating strong generalization. Further, we have examined the utility of HistoROI in improving the performance of downstream deep learning-based tasks using the CAMELYON breast cancer lymph node and TCGA lung cancer datasets. For the former dataset, the area under the receiver operating characteristic curve (AUC) for metastasis versus normal tissue of a neural network trained using weakly supervised learning increased from 0.88 to 0.92 by filtering the data using HistoROI. Similarly, the AUC increased from 0.88 to 0.93 for the classification between adenocarcinoma and squamous cell carcinoma on the lung cancer dataset. We also found that the performance of the HistoROI improves upon HistoQC for artifact detection on a test dataset of 93 annotated WSIs. The limitations of the proposed model are analyzed, and potential extensions are also discussed.
description: 18 pages
A proactive malicious software identification approach for digital forensic examiners
Creators: name: Ali, Muhammad
name: Shiaeles, Stavros
name: Clarke, Nathan
name: Kontogeorgis, Dimitrios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Digital investigators often get involved with cases, which seemingly point the responsibility to the person to which the computer belongs, but after a thorough examination malware is proven to be the cause, causing loss of precious time. Whilst Anti-Virus (AV) software can assist the investigator in identifying the presence of malware, with the increase in zero-day attacks and errors that exist in AV tools, this is something that cannot be relied upon. The aim of this paper is to investigate the behaviour of malware upon various Windows operating system versions in order to determine and correlate the relationship between malicious software and OS artifacts. This will enable an investigator to be more efficient in identifying the presence of new malware and provide a starting point for further investigation.
Continuous-Wave Frequency Upconversion with a Molecular Optomechanical Nanocavity
Creators: name: Chen, Wen
name: Roelli, Philippe
name: Hu, Huatian
name: Verlekar, Sachin
name: Amirtharaj, Sakthi Priya
name: Barreda, Angela I.
name: Kippenberg, Tobias J.
name: Kovylina, Miroslavna
name: Verhagen, Ewold
name: Martínez, Alejandro
name: Galland, Christophe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Frequency upconversion is a cornerstone of electromagnetic signal processing, analysis and detection. It is used to transfer energy and information from one frequency domain to another where transmission, modulation or detection is technically easier or more efficient. Optomechanical transduction is emerging as a flexible approach to coherent frequency upconversion; it has been successfully demonstrated for conversion from radio- and microwaves (kHz to GHz) to optical fields. Nevertheless, optomechanical transduction of multi-THz and mid-infrared signals remains an open challenge. Here, we utilize molecular cavity optomechanics to demonstrate upconversion of sub-microwatt continuous-wave signals at $\sim$32~THz into the visible domain at ambient conditions. The device consists in a plasmonic nanocavity hosting a small number of molecules. The incoming field resonantly drives a collective molecular vibration, which imprints an optomechanical modulation on a visible pump laser and results in Stokes and anti-Stokes upconverted Raman sidebands with sub-natural linewidth, indicating a coherent process. The nanocavity offers 13 orders of magnitude enhancement of upconversion efficiency per molecule compared to free space, with a measured phonon-to-photon internal conversion efficiency larger than $10^{-4}$ per milliwatt of pump power. Our results establish a flexible paradigm for optomechanical frequency conversion using molecular oscillators coupled to plasmonic nanocavities, whose vibrational and electromagnetic properties can be tailored at will using chemical engineering and nanofabrication.
description: Includes Supplementary Material, 31 pages
Experience Report: Writing A Portable GPU Runtime with OpenMP 5.1
Creators: name: Tian, Shilei
name: Chesterfield, Jon
name: Doerfert, Johannes
name: Chapman, Barbara
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: GPU runtimes are historically implemented in CUDA or other vendor specific languages dedicated to GPU programming. In this work we show that OpenMP 5.1, with minor compiler extensions, is capable of replacing existing solutions without a performance penalty. The result is a performant and portable GPU runtime that can be compiled with LLVM/Clang to Nvidia and AMD GPUs without the need for CUDA or HIP during its development and compilation. While we tried to be OpenMP compliant, we identified the need for compiler extensions to achieve the CUDA performance with our OpenMP runtime. We hope that future versions of OpenMP adopt our extensions to make device programming in OpenMP also portable across compilers, not only across execution platforms. The library we ported to OpenMP is the OpenMP device runtime that provides OpenMP functionality on the GPU. This work opens the door for shipping OpenMP offloading with a Linux distribution's LLVM package as the package manager would not need a vendor SDK to build the compiler and runtimes. Furthermore, our OpenMP device runtime can support a new GPU target through the use of a few compiler intrinsics rather than requiring a reimplementation of the entire runtime.
Fast and Sample-Efficient Interatomic Neural Network Potentials for Molecules and Materials Based on Gaussian Moments
Creators: name: Zaverkin, Viktor
name: Holzmüller, David
name: Steinwart, Ingo
name: Kästner, Johannes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Artificial neural networks (NNs) are one of the most frequently used machine learning approaches to construct interatomic potentials and enable efficient large-scale atomistic simulations with almost ab initio accuracy. However, the simultaneous training of NNs on energies and forces, which are a prerequisite for, e.g., molecular dynamics simulations, can be demanding. In this work, we present an improved NN architecture based on the previous GM-NN model [V. Zaverkin and J. Kästner, J. Chem. Theory Comput. 16, 5410-5421 (2020)], which shows an improved prediction accuracy and considerably reduced training times. Moreover, we extend the applicability of Gaussian moment-based interatomic potentials to periodic systems and demonstrate the overall excellent transferability and robustness of the respective models. The fast training by the improved methodology is a pre-requisite for training-heavy workflows such as active learning or learning-on-the-fly.
description: Manuscript accepted for publication in J. Chem. Theory Comput.; Code published at https://gitlab.com/zaverkin_v/gmnn
Algorithm Design Using Spectral Graph Theory
Creators: name: Peng, Richard
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Spectral graph theory is the interplay between linear algebra and combinatorial graph theory. Laplace’s equation and its discrete form, the Laplacian matrix, appear ubiquitously in mathematical physics. Due to the recent discovery of very fast solvers for these equations, they are also becoming increasingly useful in combinatorial optimization, computer vision, computer graphics, and machine learning. In this thesis, we develop highly efficient and parallelizable algorithms for solving linear systems involving graph Laplacian matrices. These solvers can also be extended to symmetric diagonally dominant matrices and M-matrices, both of which are closely related to graph Laplacians. Our algorithms build upon two decades of progress on combinatorial preconditioning, which connects numerical and combinatorial algorithms through spectral graph theory. They in turn rely on tools from numerical analysis, metric embeddings, and random matrix theory. We give two solver algorithms that take diametrically opposite approaches. The first is motivated by combinatorial algorithms, and aims to gradually break the problem into several smaller ones. It represents major simplifications over previous solver constructions, and has theoretical running time comparable to sorting. The second is motivated by numerical analysis, and aims to rapidly improve the algebraic connectivity of the graph. It is the first highly efficient solver for Laplacian linear systems that parallelizes almost completely. Our results improve the performances of applications of fast linear system solvers ranging from scientific computing to algorithmic graph theory. We also show that these solvers can be used to address broad classes of image processing tasks, and give some preliminary experimental results.
The Nexus between Future of Work and Future of Higher Education: Redefining Employability and Equity.
Creators: name: Sharma, Himani
Publisher: name: Media Impulses
Year: 2020

description: With the advent of a new decade, there is a reasonable understanding that change is here to stay. The economic progress and social wellbeing of an economy are believed to be resting upon the ability to adapt and respond to the changes. The changes can be broadly categorized as technological innovations, digital advancements, and automation in personal and professional spaces. Amidst the ongoing technological optimism and other socio-economic changes, the economies are also deliberate about preparing for the future of work (FoW). The emphasis is on increasing the employability with an underlying assumption that higher education can significantly contribute towards the economic welfare of the nations and prepare a competent workforce. The concept of employability is now central to higher education policy. Although employability has been defined as, an 'objective term' that can be measured in terms of the number of individuals employed after post-graduation, it also has a 'subjective' meaning in terms of the value of work to individuals and lifelong learning attached with the work. This article focuses on the subjective dimension of employability, involving individual cognition, social assets, and adaptability in the digital era. It argues that individuals will now require more cognitive, creative and social skills at work for a smooth transition into the future of work. Positional conflict theory is used to contextualize the nexus between higher education, employability and future of work in the changing times.
description: Media Impulses, Bd. 58 Nr. 1 (2020): 1/2020 – Lernen angesichts von Robotik und Computational Thinking
Schreiben und Lesen lernen mit digitalen Medien.
Creators: name: Kysela-Schiemer, Gerda
name: Edtstadler, Konstanze
Publisher: name: Medienimpulse
Year: 2020

description: Die zunehmende Verbreitung von digitalen Übungen, auch im anfänglichen Schriftspracherwerb – also beim Erstlesen und Erstschreiben, erfordert eine kritisch-reflektierte Haltung sowohl bei der Erstellung als auch beim Einsatz dieser Angebote. Da bislang keine kompakte Hilfestellung dafür verfügbar ist, wurden im Rahmen des Schlemedi-Projektes (Schreiben und Lesen lernen mit Medien – Digital) literaturbasiert ein Kriterienkatalog erstellt, der die Bereiche Fachwissenschaft und Fachdidaktik Deutsch sowie Mediendidaktik vereint. Diese Kriterien werden im Beitrag theoretisch fundiert kurz vorgestellt und mithilfe von konkreten Übungen verdeutlicht.
description: Medienimpulse, Bd. 58 Nr. 1 (2020): 1/2020 – Lernen angesichts von Robotik und Computational Thinking
Lo sperimentalismo discreto di Pontiggia
Creators: name: Bellardi, Marco
Publisher: name: Università degli Studi di Milano
Year: 2014
Subjects: Pontiggia; frammentazione; stile semplice; classicismo; eticità

description: Il saggio si propone di sintetizzare alcuni punti chiave dell’esperienza letteraria di Giuseppe Pontiggia, autore incline a rinnovare le proprie soluzioni artistiche attraverso una sperimenta- zione delle tecniche e dei generi diretta a un pubblico ampio e articolato. Al fine di tracciare un filo conduttore che colleghi le diverse fasi della sua produzione narrativa, saranno trattati la formazione dell’autore nel contesto sperimentale legato alla rivista «il verri», alcuni aspetti strut- turali che emergono dall’analisi dei testi, fra i quali il modello scacchistico, la funzionalità ellittica del bianco tipografico presente fin dall’esordio, la tendenza verso una configurazione a meda- glioni rintracciabile nei tre romanzi a indagine, e che prepara le Vite di uomini non illustri, l’evoluzione della lingua letteraria in direzione di un maturo e compiuto «stile semplice», nonché l’istanza etica che ne conforma l’impegno.
description: ENTHYMEMA, No 10 (2014)
Total synthesis of (3R, 4S)-4-hydroxylasiodiplodin
Creators: name: Sheelam, Kalidasu
name: Chidara, Sridhar
name: Vinnakota, Srilalitha
name: Sridhar, Gattu
name: Polothi, Ravikumar
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: An efficient stereoselective total synthesis of (3R, 4S)-4-hydroxylasiodiplodin has been accomplished starting from known starting materials. The key steps involved in this synthesis are Stille cross coupling, alkylation of 1,3-dithiane and Yamaguchi macrolactonization.
Maintaining a Reliable World Model using Action-aware Perceptual Anchoring
Creators: name: Liang, Ying Siu
name: Choi, Dongkyu
name: Kwok, Kenneth
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Reliable perception is essential for robots that interact with the world. But sensors alone are often insufficient to provide this capability, and they are prone to errors due to various conditions in the environment. Furthermore, there is a need for robots to maintain a model of its surroundings even when objects go out of view and are no longer visible. This requires anchoring perceptual information onto symbols that represent the objects in the environment. In this paper, we present a model for action-aware perceptual anchoring that enables robots to track objects in a persistent manner. Our rule-based approach considers inductive biases to perform high-level reasoning over the results from low-level object detection, and it improves the robot's perceptual capability for complex tasks. We evaluate our model against existing baseline models for object permanence and show that it outperforms these on a snitch localisation task using a dataset of 1,371 videos. We also integrate our action-aware perceptual anchoring in the context of a cognitive architecture and demonstrate its benefits in a realistic gearbox assembly task on a Universal Robot.
description: 7 pages, 3 figures
A study of executives’ perceptions of corporate crises
Creators: name: Smart, Carolyne Faith
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to examine crisis management in business enterprises. The study had four objectives: 1) to integrate theories of crisis behaviour into a conceptual model of crisis management providing a basis for empirical research; 2) to test specific hypotheses concerning crisis behaviour, susceptibility to crises, and coping abilities; 3) to develop managerial tools for diagnosing organizational strengths and vulnerabilities in coping with crises; 4) to develop prescriptions for improving abilities to cope with crises and for preventing crises. A conceptual model was developed that provided a framework for studying decision-making and implementation processes during crises. Data on environmental, organizational, and managerial characteristics were collected from senior executives in 94 firms in Canada and the U.S. by means of a structured questionnaire. Thirty hypotheses derived from the crisis model were tested. Environmental predictability and a managerial style reflecting process rather than task orientation were two factors associated with lower than average susceptibility to crisis. A general dimension of coping abilities was identified. Firms that have a high ability to cope with one type of crisis tend to have high abilities to cope with other kinds of crises. In addition to the general dimension the study discovered a specialized dimension of coping abilities. Firms that develop high abilities to deal with continuous threats tend to have poor abilities to deal with discontinuous threats if the general dimension of coping abilities is kept constant. High levels of organizational slack and a decentralized decision-making structure were identified as two major factors relating to the ability to cope with market failures. Diagnostic functions were constructed that predicted vulnerabilities to crisis on the basis of executive and organizational attributes. Discriminant Analysis was used to derive the predictive functions for different types of threatening situations (discontinuous threats and opportunities, market stagnation, declining markets, and cyclical markets). The powers of discrimination for these functions generally were high. Prescriptions were developed for improving crisis coping abilities and for preventing crises. To help reduce crisis susceptibility, for example, improved scanning and monitoring techniques were prescribed to temper the impact of an uncertain environment. Dual organizational structures, one for routine decision-making and one for crisis decision-making were prescribed to improve performance in crises. Other prescriptions were of a type that generally would improve management capabilities, for example, expanding the repertoire of standard operating procedures, increasing the motivation of operating departments, and making procedural modifications in decision-making processes. The dissertation concludes by reviewing the successes and weaknesses of the empirical study, and proposals are made for future research.
A temperature-controlled device for volumetric measurements of Helium adsorption in porous media
Creators: name: Cross, Benjamin
name: Puech, Laurent
name: Wolf, Pierre-Etienne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We describe a set-up for studying adsorption of helium in silica aerogels, where the adsorbed amount is easily and precisely controlled by varying the temperature of a gas reservoir between 80 K and 180 K. We present validation experiments and a first application to aerogels. This device is well adapted to study hysteresis, relaxation, and metastable states in the adsorption and desorption of fluids in porous media.
MASKDROID: Robust Android Malware Detection with Masked Graph Representations
Creators: name: Zheng, Jingnan
name: Liu, Jiaohao
name: Zhang, An
name: Zeng, Jun
name: Yang, Ziqi
name: Liang, Zhenkai
name: Chua, Tat-Seng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Android malware attacks have posed a severe threat to mobile users, necessitating a significant demand for the automated detection system. Among the various tools employed in malware detection, graph representations (e.g., function call graphs) have played a pivotal role in characterizing the behaviors of Android apps. However, though achieving impressive performance in malware detection, current state-of-the-art graph-based malware detectors are vulnerable to adversarial examples. These adversarial examples are meticulously crafted by introducing specific perturbations to normal malicious inputs. To defend against adversarial attacks, existing defensive mechanisms are typically supplementary additions to detectors and exhibit significant limitations, often relying on prior knowledge of adversarial examples and failing to defend against unseen types of attacks effectively. In this paper, we propose MASKDROID, a powerful detector with a strong discriminative ability to identify malware and remarkable robustness against adversarial attacks. Specifically, we introduce a masking mechanism into the Graph Neural Network (GNN) based framework, forcing MASKDROID to recover the whole input graph using a small portion (e.g., 20%) of randomly selected nodes.This strategy enables the model to understand the malicious semantics and learn more stable representations, enhancing its robustness against adversarial attacks. While capturing stable malicious semantics in the form of dependencies inside the graph structures, we further employ a contrastive module to encourage MASKDROID to learn more compact representations for both the benign and malicious classes to boost its discriminative power in detecting malware from benign apps and adversarial examples.
Multiple connecting geodesics of a Randers-Kropina metric via homotopy theory for solutions of an affine control system
Creators: name: Caponio, Erasmo
name: Javaloyes, Miguel Angel
name: Masiello, Antonio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We consider a geodesic problem in a manifold endowed with a Randers-Kropina metric. This is a type of singular Finsler metric arising both in the description of the lightlike vectors of a spacetime endowed with a causal Killing vector field and in the Zermelo's navigation problem with a wind represented by a vector field having norm not greater than one. By using Lusternik-Schnirelman theory, we prove existence of infinitely many geodesics between two given points when the manifold is not contractible. Due to the type of nonholonomic constraints that the velocity vectors must satisfy, this is achieved thanks to a recent result about the homotopy type of the set of solutions of an affine control system with a controlled drift and related to a corank one, completely nonholonomic distribution of step 2.
description: 19 pages, AMSLaTeX. This version includes corrections to the published version that will appear separately on the journal
Παράγοντες για διακοπή της κύησης
Creators: name: Νίκου, Μαρία Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2025
Subjects: Διακοπή κύησης
Γενετικές ανωμαλίες
Δυσπλασία του τραχήλου της μήτρας
Pregnancy termination
Genetic defects
Cervical dysplasia

description: Η απόφαση για τη διακοπή της κύησης είναι πολύπλοκη και πολύπλευρη και άπτεται σε ποικίλους παράγοντες, ιατρικούς, ψυχολογικούς, κοινωνικοοικονομικούς και πολιτισμικούς. Στόχος της παρούσας μελέτης είναι η διερεύνηση των παραγόντων αυτών. Πραγματοποιήθηκε ανασκόπηση της βιβλιογραφίας από το 2014 και μετά, η οποία περιελάμβανε μελέτες παρατήρησης, μετα-αναλύσεις και συστηματικές ανασκοπήσεις. Έγινε αναζήτηση σε πέντε βάσεις δεδομένων (PubMed, Scopus, Web of Science, CINAHL, PsycINFO). Διαπιστώθηκε ότι οι γενετικές ανωμαλίες και οι εμβρυϊκές δυσπλασίες είναι οι πλέον συχνές αιτίες διακοπής της κύησης. Επίσης, σοβαρές νόσοι της μητέρας όπως η προεκλαμψία και οι καρδιαγγειακές παθήσεις μπορεί να οδηγήσουν σε διακοπή της κύησης. Επιπλέον, η δυσπλασία του τραχήλου της μήτρας και η υπερπλασία του ενδομητρίου ενέχουν σημαντικούς κινδύνους κατά τη διάρκεια της εγκυμοσύνης. Προηγμένες τεχνικές όπως ο προσδιορισμός αλληλουχίας του DNA και ο μη επεμβατικός προγεννητικός έλεγχος, αλλά και η διεπιστημονική προσέγγιση διαδραματίζουν κρίσιμο ρόλο στην έγκαιρη ανίχνευση των ανωμαλιών και στη λήψη αποφάσεων. Τα αποτελέσματα υπογραμμίζουν την ανάγκη για βελτίωση της διαγνωστικής ακρίβειας και της ανάπτυξης λιγότερο επεμβατικών μέσων θεραπείας. Οι συστάσεις για τους παρόχους υγειονομικής περίθαλψης περιλαμβάνουν τη βελτίωση των προληπτικών και διαγνωστικών τεχνικών, την παροχή ολιστικής υποστήριξης και συμβουλευτικής προσαρμοσμένης στις μοναδικές ιατρικές και προσωπικές συνθήκες κάθε ασθενούς.
description: The decision to terminate a pregnancy is complex and multifaceted, influenced by various medical, psychological, socioeconomic, and cultural factors. This study aims to explore these factors in depth. A literature review was conducted on studies published from 2014 onwards, including observational studies, meta-analyses, and systematic reviews. The search was performed across five databases (PubMed, Scopus, Web of Science, CINAHL, PsycINFO). Findings indicate that genetic abnormalities and fetal malformations are among the most common reasons for pregnancy termination. Additionally, severe maternal conditions, such as preeclampsia and cardiovascular diseases, may also necessitate termination. Moreover, cervical dysplasia and endometrial hyperplasia pose significant risks during pregnancy. Advanced techniques, including DNA sequencing and non-invasive prenatal testing, as well as an interdisciplinary approach, play a crucial role in the early detection of abnormalities and informed decision-making. The results emphasize the need for improved diagnostic accuracy and the development of less invasive treatment methods. Recommendations for healthcare providers include enhancing preventive and diagnostic techniques, offering holistic support, and providing counseling tailored to each patient's unique medical and personal circumstances.
Rezension: Down Girl. Die Logik der Misogynie von Kate Mann.
Creators: name: Lenhart, Johanna
Publisher: name: Medienimpulse
Year: 2019

description: Johanna Lenhart stellt mit dieser Rezension die jüngste Publikation von Kate Manne vor, die eine genaue Unterscheidung von Mysogynie und Sexismus unternimmt und zeigt, wie dieser Problemkreis nach wie vor in der Politik und in der Öffentlichkeit tief verankert ist.
description: Medienimpulse, Bd. 57 Nr. 4 (2019): 4/2019 - Emotionen (in) der Medienbildung
First Results with the ANET Compact Thermal Neutron Collimator
Creators: name: Sans-Planell, Oriol
name: Costa, Marco
name: Durisi, Elisabetta
name: Mafucci, Ettore
name: Menzio, Luca
name: Monti, Valeria
name: Visca, Lorenzo
name: Grazzi, Francesco
name: Bedogni, Roberto
name: Altieri, Saverio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: This paper presents the first determination of the spatial resolution of the ANET Compact Neutron Collimator, obtained with a measuring campaign at the LENA Mark-II TRIGA reactor in Pavia. This novel collimator consists of a sequence of collimating and absorbing channels organised in a chessboard-like geometry. It has a scalable structure both in length and in the field of view. It is characterized by an elevated collimation power within a limited length. Its scalability and compactness are added values with respect to traditional collimating system. The prototype tested in this article is composed of 4 concatenated stages, each 100mm long, with a channel width of 2.5mm, delivering a nominal L/D factor of 160. This measuring campaign illustrates the use of the ANET collimator and its potential application in neutron imaging for facilities with small or medium size neutron sources.
description: 9 pages, 8 figures, prepared for submission to JINST
Human Initiated Grasp Space Exploration Algorithm for an Underactuated Robot Gripper Using Variational Autoencoder
Creators: name: Rolinat, Clément
name: Grossard, Mathieu
name: Aloui, Saifeddine
name: Godin, Christelle
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Grasp planning and most specifically the grasp space exploration is still an open issue in robotics. This article presents an efficient procedure for exploring the grasp space of a multifingered adaptive gripper for generating reliable grasps given a known object pose. This procedure relies on a limited dataset of manually specified expert grasps, and use a mixed analytic and data-driven approach based on the use of a grasp quality metric and variational autoencoders. The performances of this method are assessed by generating grasps in simulation for three different objects. On this grasp planning task, this method reaches a grasp success rate of 99.91% on 7000 trials.
description: accepted at ICRA 2021 conference. arXiv admin note: substantial text overlap with arXiv:2109.08504
„Radio ist schön.“
Creators: name: Neureiter, Eva
Publisher: name: Medienimpulse
Year: 2019

description: Die Volksschul-Pädagogin Eva Neureiter fasst mit ihrem Beitrag sehr konkret und praktisch ihre jahrelangen Erfahrungen mit dem Radiomachen in Schulklassen zusammen. Dabei versteht sich ihr Beitrag durchwegs als ein Plädoyer für die Medienpädagogik, denn die Medienarbeit muss in Zeiten der Digitalen Bildung ein wichtiger Bestandteil des Unterrichts sein. Die Arbeit in Freien Medien und das konkrete Tun im Radiostudio bieten dabei, so die Autorin, auch eine Chance für das Einleiten demokratiepolitischer Prozesse, die schon bei Kindern für Partizipation und Mitgestaltung befördern können. Dabei sieht Neureiter den Sinn der Arbeit von Pädagoginnen bzw. Pädagogen keineswegs darin, die Kinder an vorgeschriebene Testungen anzupassen, sondern die Medienpädagogik an unsere Kinder heranzuführen.
description: Medienimpulse, Bd. 57 Nr. 4 (2019): 4/2019 - Emotionen (in) der Medienbildung
Vertical GaN Devices: Process and Reliability
Creators: name: You, Shuzhen
name: Geens, Karen
name: Borga, Matteo
name: Liang, Hu
name: Hahn, Herwig
name: Fahle, Dirk
name: Heuken, Michael
name: Mukherjee, Kalparupa
name: De Santi, Carlo
name: Meneghini, Matteo
name: Zanoni, Enrico
name: Berg, Martin
name: Ramvall, Peter
name: Kumar, Ashutosh
name: Björk, Mikael T.
name: Ohlsson, B. Jonas
name: Decoutere, Stefaan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: This paper reviews recent progress and key challenges in process and reliability for high-performance vertical GaN transistors and diodes, focusing on the 200 mm CMOS-compatible technology. We particularly demonstrated the potential of using 200 mm diameter CTE matched substrates for vertical power transistors, and gate module optimizations for device robustness. An alternative technology path based on coalescence epitaxy of GaN-on-Silicon is also introduced, which could enable thick drift layers of very low dislocation density.
description: ["European Union (EU)" & "Horizon 2020"]["Euratom" & Euratom research & training programme 2014-2018"][ECSEL Joint Undertaking (JU)][UltimateGaN][grant agreement No 826392]
Tagungsrückblick: Barcamp 2019 der Initiative Medienbildung JETZT!
Creators: name: Kaindel, Christoph
Publisher: name: Medienimpulse
Year: 2019

description: Das jährliche Barcamp der Initiative Medienbildung JETZT! hat am 29. und 30.11. im Tagungshaus des bifeb am Wolfgangsee stattgefunden. Die Tagung unter dem Motto „Medienpädagogische Grundversorgung JETZT!” wurde in Kooperation mit COMMIT und dem bifeb organisiert.
description: Medienimpulse, Bd. 57 Nr. 4 (2019): 4/2019 - Emotionen (in) der Medienbildung