cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
From demand to digital platform: a reference process for hospital procurement
Creators: name: Rieprich, Melanie
name: Ramm, Saskia
name: Berndt, Stephan
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2023
Subjects: BPMN
reference model
supply chain network
resilience
platform economy

description: Past crises have shown severe deficits in the resilience of value networks in the medical technology industry. Supply chains were interrupted and products were subsequently unavailable. In the medical sector, which is largely part of the critical infrastructure, it is of utmost importance to ensure security of supply. For this reason, the KISS project aims to develop a market and networking platform to support the procurement of medical devices. As a basis for this, a reference model of the procurement process in hospitals was created. Based on a series of interviews with various stakeholders in hospital procurement, it was possible to derive individual process models. Through an activity clustering carried out by a group of experts, the individual process models could then be merged into a generic process model, which forms the basis for the interface integration for the digital services. Furthermore, time and cost savings in the implementation of comparable projects in the area of hospital procurement can be achieved on the basis of these results.
Bayesian optimization of laser-plasma accelerators assisted by reduced physical models
Creators: name: Pousa, A. Ferran
name: Jalas, S.
name: Kirchen, M.
name: de la Ossa, A. Martinez
name: Thévenet, M.
name: Hudson, S.
name: Larson, J.
name: Huebl, A.
name: Vay, J. -L.
name: Lehe, R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Particle-in-cell simulations are among the most essential tools for the modeling and optimization of laser-plasma accelerators, since they reproduce the physics from first principles. However, the high computational cost associated with them can severely limit the scope of parameter and design optimization studies. Here, we show that a multitask Bayesian optimization algorithm can be used to mitigate the need for such high-fidelity simulations by incorporating information from inexpensive evaluations of reduced physical models. In a proof-of-principle study, where a high-fidelity optimization with FBPIC is assisted by reduced-model simulations with Wake-T, the algorithm demonstrates an order-of-magnitude speedup. This opens a path for the cost-effective optimization of laser-plasma accelerators in large parameter spaces, an important step towards fulfilling the high beam quality requirements of future applications.
Dynamical timescale of precollapse evolution inferred from chemical distribution in the Taurus Molecular Cloud-1 (TMC-1) filament
Creators: name: Choi, Yunhee
name: Lee, Jeong-Eun
name: Bourke, Tyler L.
name: Evans, Neal J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present observations and analysis of the low-mass star-forming region, Taurus Molecular Cloud-1 (TMC-1). CS ($J$=2-1)/N$_2$H$^+$ ($J$=1-0) and C$^{17}$O ($J$=2-1)/C$^{18}$O ($J$=2-1) were observed with FCRAO (Five College Radio Astronomy Observatory) and SRAO (Seoul Radio Astronomy Observatory), respectively. In addition, Spitzer infrared data and 1.2 mm continuum data observed with MAMBO (Max-Planck Millimetre Bolometer) are used. We also perform chemical modeling to investigate the relative molecular distributions of the TMC-1 filament. Based on Spitzer observations, there is no young stellar object along the TMC-1 filament, while five Class II and one Class I young stellar objects are identified outside the filament. The comparison between column densities calculated from dust continuum and C$^{17}$O 2-1 line emission shows that CO is depleted much more significantly in the ammonia peak than in the cyanopolyyne peak, while the column densities calculated from the dust continuum are similar at the two peaks. N$_2$H$^+$ is not depleted much in either peak. According to our chemical calculation, the differential chemical distribution in the two peaks can be explained by different timescales required to reach the same density, i.e., by different dynamical processes.
description: 19 pages, 8 figures, accepted for publication in ApJS
Spatial evolution of the turbulent/turbulent interface geometry in a cylinder wake
Creators: name: Chen, Jiangang
name: Buxton, Oliver R. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This study aims to examine the spatial evolution of the geometrical features of the turbulent/turbulent interface (TTI) in a cylinder wake. The wake is exposed to various turbulent backgrounds in which the turbulence intensity and the integral length scale are independently varied and comparisons to a turbulent/non-turbulent interface (TNTI) are drawn. The turbulent wake was marked with a high-Schmidt-number ($Sc$) scalar and a planar laser induced fluorescence (PLIF) experiment was carried out to capture the interface between the wake and the ambient flow from $x/d$ = 5 to 40 where $x$ is the streamwise coordinate from the centre of the cylinder and $d$ is the cylinder's diameter. It is found that the TTI generally spreads faster toward the ambient flow than the TNTI. A transition region of the interfaces' spreading is found at $x/d \approx 15$, after which the interfaces propagate at a slower rate than previously (upstream) and the mean interface positions of both TNTI and TTI scale with the local wake half-width. The location of both the TNTI and TTI have non-Gaussian probability density functions (PDFs) in the near wake because of the influence of the large-scale coherent motions present within the flow. Further downstream, after the large-scale coherent motions have dissipated, the TNTI position PDF does become Gaussian. For the first time we explore the spatial variation of the ``roughness'' of the TTI, quantified via the fractal dimension, from near field to far field. The length scale in the background flow has a profound effect on the TTI fractal dimension in the near wake, whilst the turbulence intensity only becomes important for the fractal dimension farther downstream.
Rate of convergence for a Galerkin scheme approximating a two-scale reaction-diffusion system with nonlinear transmission condition
Creators: name: Muntean, Adrian
name: Lakkis, Omar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 65M60, 65M15, 35K57, 65L70, 80A32, 35B27

description: We study a two-scale reaction-diffusion system with nonlinear reaction terms and a nonlinear transmission condition (remotely ressembling Henry's law) posed at air-liquid interfaces. We prove the rate of convergence of the two-scale Galerkin method proposed in Muntean & Neuss-Radu (2009) for approximating this system in the case when both the microstructure and macroscopic domain are two-dimensional. The main difficulty is created by the presence of a boundary nonlinear term entering the transmission condition. Besides using the particular two-scale structure of the system, the ingredients of the proof include two-scale interpolation-error estimates, an interpolation-trace inequality, and improved regularity estimates.
description: 14 pages, table of contents
Directional mechanical response in the bulk of topological metamaterials
Creators: name: Rocklin, D. Zeb
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Mechanical metamaterials are those structures designed to convey force and motion in novel and desirable ways. Recently, Kane and Lubensky showed that lattices at the point of marginal mechanical stability (Maxwell lattices) possess a topological invariant that describes the distribution of floppy, zero-energy edge modes. Here, we show that applying force at a point in the bulk of these lattices generates a directional mechanical response, in which stress or strain is induced only on one side of the force. This provides both a bulk metric for mechanical polarization and a design principle to convey stresses and strains towards or away from parts of the structure. We also characterize the effects of removing bonds on the material's structure and floppy modes, establishing a relationship between edge modes and bulk response.
Makroskopische thermische und thermomechanische Simulation des selektiven Strahlschmelzens metallischer Werkstoffe
Creators: name: Burkhardt, Christian
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2024
Subjects: SBM
Finite Elemente
Prozesssimulation

description: Additive Fertigungsprozesse erfreuen sich in den vergangenen Jahren wachsender Beliebtheit aufgrund des reduzierten Werkstoffeinsatzes, dem Auskommen ohne Spezialwerkzeug und der erhöhten Designfreiheit gegenüber konventioneller Verfahren. Im selektiven Strahlschmelzen werden Bauteile durch das schichtweise ortsselektive Aufschmelzen von pulverförmigem Material gefertigt. Der dazu erforderliche lokale Energieeintrag hat ein stark heterogenes Temperaturfeld und hohe Temperaturgradienten zur Folge. Die resultierenden thermischen Dehnungen führen zu Eigenspannungen und Bauteilverzug. Dadurch sind die Maßhaltigkeit und die Bauteileigenschaften nach dem additiven Fertigungsprozess beeinträchtigt und erfordern häufig kostenintensive Nachbearbeitungsschritte. Das Ziel der vorliegenden Arbeit ist es durch thermische und thermomechanische Simulation eine weitere Verbreitung der additiven Prozesse zu unterstützen. Dafür wird eine Simulationsumgebung für selektive Strahlschmelzprozesse metallischer Werkstoffe, wie Ti-6Al-4V und CMSX-4, auf der makroskopischen Ebene vorgestellt. Die thermischen und thermomechanischen Bilanzgleichungen werden in einem einfach gekoppelten Finite Elemente Ansatz nach den Temperaturen, Verschiebungen und Spannungen gelöst. Die Modellierung umfasst alle relevanten physikalischen Vorgänge wie den Wärmeeintrag, die Phasenwechsel und den Schichtauftrag sowie das Abbilden des temperatur-, raten- und phasenabhängigen Materialverhaltens durch geeignete Konstitutivgesetze. Zusätzlich wird für Ti-6Al-4V ein phänomenologisches Mikrostrukturmodell beschrieben. Es werden fehlerschätzerbasierte adaptive Verfahren für die räumliche und zeitliche Diskretisierung vorgestellt, welche neben der Parallelisierung der Simulationsumgebung zur Rechenzeitreduktion verwendet werden. Nach Verifizierung und Validierung der Simulationsumgebung wird ein effizientes Setting identifiziert und die Fertigung eines Ausschnitts einer Gitterzelle simuliert. Zur Verkürzung der Rechenzeit werden physikalisch reduzierte Modelle beschrieben und bewertet. Die gewonnenen Erkenntnisse werden für die Simulation einer rotationssymmetrischen Struktur mit variierenden Querschnitten und einer Brückenstruktur verwendet und die resultierenden thermischen, mikrostrukturellen und mechanischen Kenngrößen mit experimentell ermittelten Werten qualitativ und quantitativ verglichen.
Nominal Unification from a Higher-Order Perspective
Creators: name: Levy, Jordi
name: Villaret, Mateu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Symbolic Computation (cs.SC)
subject: FOS: Computer and information sciences
subject: F.4.1

description: Nominal Logic is a version of first-order logic with equality, name-binding, renaming via name-swapping and freshness of names. Contrarily to higher-order logic, bindable names, called atoms, and instantiable variables are considered as distinct entities. Moreover, atoms are capturable by instantiations, breaking a fundamental principle of lambda-calculus. Despite these differences, nominal unification can be seen from a higher-order perspective. From this view, we show that nominal unification can be reduced to a particular fragment of higher-order unification problems: Higher-Order Pattern Unification. This reduction proves that nominal unification can be decided in quadratic deterministic time, using the linear algorithm for Higher-Order Pattern Unification. We also prove that the translation preserves most generality of unifiers.
TikTalk: A Video-Based Dialogue Dataset for Multi-Modal Chitchat in Real World
Creators: name: Lin, Hongpeng
name: Ruan, Ludan
name: Xia, Wenke
name: Liu, Peiyu
name: Wen, Jingyuan
name: Xu, Yixin
name: Hu, Di
name: Song, Ruihua
name: Zhao, Wayne Xin
name: Jin, Qin
name: Lu, Zhiwu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: To facilitate the research on intelligent and human-like chatbots with multi-modal context, we introduce a new video-based multi-modal dialogue dataset, called TikTalk. We collect 38K videos from a popular video-sharing platform, along with 367K conversations posted by users beneath them. Users engage in spontaneous conversations based on their multi-modal experiences from watching videos, which helps recreate real-world chitchat context. Compared to previous multi-modal dialogue datasets, the richer context types in TikTalk lead to more diverse conversations, but also increase the difficulty in capturing human interests from intricate multi-modal information to generate personalized responses. Moreover, external knowledge is more frequently evoked in our dataset. These facts reveal new challenges for multi-modal dialogue models. We quantitatively demonstrate the characteristics of TikTalk, propose a video-based multi-modal chitchat task, and evaluate several dialogue baselines. Experimental results indicate that the models incorporating large language models (LLM) can generate more diverse responses, while the model utilizing knowledge graphs to introduce external knowledge performs the best overall. Furthermore, no existing model can solve all the above challenges well. There is still a large room for future improvements, even for LLM with visual extensions. Our dataset is available at \url{https://ruc-aimind.github.io/projects/TikTalk/}.
description: Accepted to ACM Multimedia 2023
A New Quantum Data Processing Inequality
Creators: name: Beigi, Salman
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Quantum data processing inequality bounds the set of bipartite states that can be generated by two far apart parties under local operations; Having access to a bipartite state as a resource, two parties cannot locally transform it to another bipartite state with a mutual information greater than that of the resource state. But due to the additivity of quantum mutual information under tensor product, the data processing inequality gives no bound when the parties are provided with arbitrary number of copies of the resource state. In this paper we introduce a measure of correlation on bipartite quantum states, called maximal correlation, that is not additive and gives the same number when computed for multiple copies. Then by proving a data processing inequality for this measure, we find a bound on the set of states that can be generated under local operations even when an arbitrary number of copies of the resource state is available.
description: 12 pages, removed a claim about the hermicity of optimal operators and added an example
Annex 2. Attendance Sheet
Creators: name: Schanté, Joanne
Publisher: name: Zenodo
Year: 2020
Subjects: Urban forests
nature-based solutions
trees
co-design
participation
participatory decision-making
participatory research
co-learning
transdisciplinarity
stakeholders

description: This file is an annex to the Guidance document for the local co-design and co-learning workshops (D3.1) (https://www.zenodo.org/deposit/3887161). The Guidance document gives guidelines for organising co-design workshops. This Annex 2 is a template attendance sheet to be filled in during the co-design meeting by the attendants.
Asymptotic behavior of minimizing $p$-harmonic maps when $p \nearrow 2$ in dimension 2
Creators: name: Van Schaftingen, Jean
name: Van Vaerenbergh, Benoît
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58E20 (Primary) 49J45 (Secondary)

description: We study $p$--harmonic maps with Dirichlet boundary conditions from a planar domain into a general compact Riemannian manifold. We show that as $p$ approaches $2$ from below, they converge up to a subsequence to a minimizing singular renormalizable harmonic map. The singularities are imposed by topological obstructions to the existence of harmonic mappings; the location of the singularities being governed by a renormalized energy. Our analysis is based on lower bounds on growing balls and also yields some uniform weak-$L^p$ bounds (also known as Marcinkiewicz or Lorentz $L^{p,\infty}$).
description: 40 pages, typographical corrections
The Fractal Dimension of SAT Formulas
Creators: name: Ansótegui, C.
name: Bonet, M. L.
name: Giráldez-Cru, J.
name: Levy, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Modern SAT solvers have experienced a remarkable progress on solving industrial instances. Most of the techniques have been developed after an intensive experimental testing process. Recently, there have been some attempts to analyze the structure of these formulas in terms of complex networks, with the long-term aim of explaining the success of these SAT solving techniques, and possibly improving them. We study the fractal dimension of SAT formulas, and show that most industrial families of formulas are self-similar, with a small fractal dimension. We also show that this dimension is not affected by the addition of learnt clauses. We explore how the dimension of a formula, together with other graph properties can be used to characterize SAT instances. Finally, we give empirical evidence that these graph properties can be used in state-of-the-art portfolios.
description: 20 pages, 11 Postscript figures
Background dielectric permittivity: material constant or fitting parameter?
Creators: name: Levanyuk, A. P.
name: Strukov, B. A.
name: Cano, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The concept of background dielectric constant proposed by Tagantsev, together with the distinction between critical and non-critical electric polarizations as a natural extension for the order parameter of ferroelectric phase transitions, is critically discussed. It is argued and exemplified that, even if these quantities can be very useful for obtaining qualitative and semi-quantitative results from phenomenological modeling, they cannot be introduced in a self-consistent manner.
description: 11 pages, no figures
FUNDAMENTALS OF MANAGEMENT ACCOUNTING
Creators: name: Namangan Institute of Engineering Technology Assistant of the Department of Accounting and Auditing Khontorayev Obboskhan Kamolkhan ogli
name: Namangan Region Chief accountant of Davlatabad District 1 City Hospital, Ergasheva Nigora Abdigapparovna
Publisher: name: Zenodo
Year: 2024

description: The article devoted to open the fundamental concepts of management accounting, its specific methods and standarts. On the other hand, advantages and dis advantages of accounting standarts were highlighted in the article.

Key words: financial statements, specific methods, Accounting standards, Accountancy, shareholders.
Node Injection for Class-specific Network Poisoning
Creators: name: Sharma, Ansh Kumar
name: Kukreja, Rahul
name: Kharbanda, Mayank
name: Chakraborty, Tanmoy
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Graph Neural Networks (GNNs) are powerful in learning rich network representations that aid the performance of downstream tasks. However, recent studies showed that GNNs are vulnerable to adversarial attacks involving node injection and network perturbation. Among these, node injection attacks are more practical as they don't require manipulation in the existing network and can be performed more realistically. In this paper, we propose a novel problem statement - a class-specific poison attack on graphs in which the attacker aims to misclassify specific nodes in the target class into a different class using node injection. Additionally, nodes are injected in such a way that they camouflage as benign nodes. We propose NICKI, a novel attacking strategy that utilizes an optimization-based approach to sabotage the performance of GNN-based node classifiers. NICKI works in two phases - it first learns the node representation and then generates the features and edges of the injected nodes. Extensive experiments and ablation studies on four benchmark networks show that NICKI is consistently better than four baseline attacking strategies for misclassifying nodes in the target class. We also show that the injected nodes are properly camouflaged as benign, thus making the poisoned graph indistinguishable from its clean version w.r.t various topological properties.
description: 28 pages, 5 figures
Dislocation-free axial InAs-on-GaAs nanowires on silicon
Creators: name: Beznasyuk, Daria V.
name: Robin, Eric
name: Hertog, Martien Den
name: Claudon, Julien
name: Hocevar, Moïra
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the growth of axial InAs-on-GaAs nanowire heterostructures on silicon by molecular beam epitaxy using 20 nm diameter Au catalysts. First, the growth parameters of the GaAs nanowire segment were optimized to achieve a pure wurtzite crystal structure. Then, we developed a two-step growth procedure to enhance the yield of vertical InAs-on-GaAs nanowires. We achieved 90% of straight InAs-on-GaAs nanowires by further optimizing the growth parameters. We investigated the composition change at the interface by energy dispersive X-ray spectroscopy and the nanowire crystal structure by transmission electron microscopy. The nominal composition of the InAs segment is found to be In$_{x}$Ga$_{1-x}$As with $x$=0.85 and corresponds to 6% of lattice mismatch with GaAs. Strain mapping performed by the geometrical phase analysis of high-resolution images revealed a dislocation-free GaAs/InAs interface. In conclusion, we successfully fabricated highly mismatched heterostructures, confirming the prediction that axial GaAs/InAs interfaces are pseudomorphic in nanowires below 40 nm diameter.
Neutron interferometric measurement of the scattering length difference between the triplet and singlet states of n-$^3$He
Creators: name: Huber, M. G.
name: Arif, M.
name: Chen, W. C.
name: Gentile, T. R.
name: Hussey, D. S.
name: Black, T. C.
name: Pushin, D. A.
name: Shahi, C. B.
name: Wietfeldt, F. E.
name: Yang, L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We report a determination of the n-$^3$He scattering length difference $Δb^{\prime} = b_{1}^{\prime}-b_{0}^{\prime} = $ ($-5.411$ $\pm$ $0.031$ (statistical) $\pm$ $0.039$ (systematic)) fm between the triplet and singlet states using a neutron interferometer. This revises our previous result $Δb^{\prime} = $ (-5.610 $\pm$ $0.027$ (statistical) $\pm$ $0.032$ (systematic) fm obtained using the same technique in 2008. This revision is due to a re-analysis of the 2008 experiment that includes a more robust treatment of the phase shift caused by magnetic field gradients near the $^3$He cell. Furthermore, we more than doubled our original data set from 2008 by acquiring six months of additional data in 2013. Both the new data set and a re-analysis of the older data are in good agreement. Scattering lengths of low Z isotopes are valued for use in few-body nuclear effective field theories, provide important tests of modern nuclear potential models and in the case of $^3$He aid in the interpretation of neutron scattering from quantum liquids. The difference $Δb^{\prime}$ was determined by measuring the relative phase shift between two incident neutron polarizations caused by the spin-dependent interaction with a polarized $^3$He target. The target $^3$He gas was sealed inside a small, flat windowed glass cell that was placed in one beam path of the interferometer. The relaxation of $^3$He polarization was monitored continuously with neutron transmission measurements. The neutron polarization and spin flipper efficiency were determined separately using $^3$He analyzers and two different polarimetry analysis methods. A summary of the measured scattering lengths for n-$^3$He with a comparison to nucleon interaction models is given.
Second moment of the pion distribution amplitude with the momentum smearing technique
Creators: name: RQCD Collaboration
name: Bali, G. S.
name: Braun, V. M.
name: Göckeler, M.
name: Gruber, M.
name: Hutzler, F.
name: Korcyl, P.
name: Lang, B.
name: Schäfer, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the second moment of the pion distribution amplitude as an example, we investigate whether lattice calculations of matrix elements of local operators involving covariant derivatives may benefit from the recently proposed momentum smearing technique for hadronic interpolators. Comparing the momentum smearing technique to the traditional Wuppertal smearing we find - at equal computational cost - a considerable reduction of the statistical errors. The present investigation was carried out using $N_f=2+1$ dynamical non-perturbatively order $a$ improved Wilson fermions on lattices of different volumes and pion masses down to 220 MeV.
Leveraging Interactions in Microfluidic Droplets for Enhanced Biotechnology Screens
Creators: name: Vitalis, Carolus
name: Wenzel, Tobias
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: 76T30, 78A70, 68U10

description: Microfluidic droplet screens serve as an innovative platform for high-throughput biotechnology, enabling significant advancements in discovery, product optimization, and analysis. This review sheds light on the emerging trend of interaction assays in microfluidic droplets, underscoring the unique suitability of droplets for these applications. Encompassing a diverse range of biological entities such as antibodies, enzymes, DNA, RNA, various microbial and mammalian cell types, drugs, and other molecules, these assays demonstrate their versatility and scope. Recent methodological breakthroughs have escalated these screens to novel scales of bioanalysis and biotechnological product design. Moreover, we highlight pioneering advancements that extend droplet-based screens into new domains: cargo delivery within human bodies, application of synthetic gene circuits in natural environments, 3D-printing, and the development of droplet structures responsive to environmental signals. The potential of this field is profound and only set to increase.
description: 10 pages, 3 figures
Marginal deformations of 3d supersymmetric U(N) model and broken higher spin symmetry
Creators: name: Hikida, Yasuaki
name: Wada, Taiki
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the marginal deformations of double-trace type in 3d supersymmetric U(N) model with N complex free bosons and fermions. We compute the anomalous dimensions of higher spin currents to the 1/N order but to all orders in the deformation parameters by mainly applying the conformal perturbation theory. The 3d field theory is supposed to be dual to 4d supersymmetric Vasiliev theory, and the marginal deformations are argued to correspond to modifying boundary conditions for bulk scalars and fermions. Thus the modification should break higher spin gauge symmetry and generate the masses of higher spin fields. We provide supports for the dual interpretation by relating bulk computation in terms of Witten diagrams to boundary one in conformal perturbation theory.
description: 32 pages, 3 figures, minor changes, references added, published version
Annex 1. Co-design Workshop Documentation Form
Creators: name: de Schio, Nic
name: Schanté, Joanne
name: De Vreese, Rik
Publisher: name: Zenodo
Year: 2020
Subjects: Urban forests
nature-based solutions
trees
co-design
participation
participatory decision-making
participatory research
co-learning
transdisciplinarity
stakeholders
Europe
China

description: This file is an annex to the Guidance document for the local co-design and co-learning workshops (D3.1) (https://www.zenodo.org/deposit/3887161). The Guidance document gives guidelines for organising co-design workshops. This Annex 1 is a template to be filled in before and after the co-design meeting, and acts as a summary and documentation for further case study analysis.
Emergent Universe Model from Modified Heisenberg Algebra
Creators: name: Barca, Gabriele
name: Montani, Giovanni
name: Melchiorri, Alessandro
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide an Emergent Universe picture in which the fine-tuning on the initial conditions is replaced by cut-off physics, implemented on a semiclassical level when referred to the Universe dynamics and on a purely quantum level for the quantum fluctuations of the inflaton field. The adopted cut-off physics is inspired by Polymer Quantum Mechanics but expanded in the limit of a small lattice step. On a quasi-classical level, this results in modified Poisson Brackets for the Hamiltonian Universe dynamics similar to a Generalized Uncertainty Principle algebra. The resulting Universe is indeed asymptotically Einstein-static, emerging from a finite volume configuration in the distant past and then properly reconnecting with the most relevant Universe phases. The calculation of the modifications of the primordial inflaton spectrum is then performed by treating new physics as a small correction on the standard Hamiltonian of each Fourier mode of the field. The merit of this study is to provide a new paradigm for a non-singular Emergent Universe, which is associated with a precise fingerprint on the temperature distribution of the microwave background, in principle observable by future experiments.
description: 12 pages, 6 figures. New upload to match published version
Comparison of Four Space Propulsion Methods for Reducing Transfer Times of Crewed Mars Mission
Creators: name: Guerra, A. G. C.
name: Bertolami, O.
name: Gil, P. J. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We assess the possibility of reducing the travel time of a crewed mission to Mars by examining four different propulsion methods and keeping the mass at departure under 2500 tonne, for a fixed architecture. We evaluated representative systems of three different state of the art technologies (chemical, nuclear thermal and electric) and one advance technology, the ``Pure Electro-Magnetic Thrust'' (PEMT) concept (proposed by Rubbia). A mission architecture mostly based on the Design Reference Architecture 5.0 is assumed in order to estimate the mass budget, that influences the performance of the propulsion system. Pareto curves of the duration of the mission and time of flight versus mass of mission are drawn. We conclude that the ion engine technology, combined with the classical chemical engine, yields the shortest mission times for this architecture with the lowest mass and that chemical propulsion alone is the best to minimise travel time. The results obtained using the PEMT suggest that it could be a more suitable solution for farther destinations than Mars.
description: Change in title and review of paper body to clarify the main objectives and results. 14 pages, 7 figures and 2 tables
QContext: Context-Aware Decomposition for Quantum Gates
Creators: name: Liu, Ji
name: Bowman, Max
name: Gokhale, Pranav
name: Dangwal, Siddharth
name: Larson, Jeffrey
name: Chong, Frederic T.
name: Hovland, Paul D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper we propose QContext, a new compiler structure that incorporates context-aware and topology-aware decompositions. Because of circuit equivalence rules and resynthesis, variants of a gate-decomposition template may exist. QContext exploits the circuit information and the hardware topology to select the gate variant that increases circuit optimization opportunities. We study the basis-gate-level context-aware decomposition for Toffoli gates and the native-gate-level context-aware decomposition for CNOT gates. Our experiments show that QContext reduces the number of gates as compared with the state-of-the-art approach, Orchestrated Trios.
description: 10 pages
REVISÃO INTEGRATIVA ACERCA DA EVOLUÇÃO DAS FERRAMENTAS DE ENSINO EM PROGRAMAS DE RESIDÊNCIA EM SAÚDE
Creators: name: Maria Carolina Costa de Almeida Cabral
name: Ana Paula Goulart Tavares Pereira
name: Enísia Gonçalves de Freitas
Publisher: name: Zenodo
Year: 2024

description: Este trabalho faz parte do livro digital: Anais do III Congresso Amazonense de Educação. Educação em destaque: projetos, estudos e pesquisas para além da sala de aula.ISBN: 978-65-00-87523-2
description: Maria Carolina Costa de Almeida Cabral - Hospital Universitário da Universidade Federal da Grande Dourados (HU-UFGD) -EBSERH, Psicóloga Hospitalar, Dourados, MS, Brasil. (maria.cabral.2@ebserh.gov.br)

Ana Paula Goulart Tavares Pereira - Hospital Universitário Polydoro Ernani de São Thiago (HU-UFSC) - EBSERH, Enfermeira, Florianópolis, SC, Brasil.  (anatavarescri@gmail.com)

Enísia Gonçalves de Freitas - Hospital Geral do Estado Professor Osvaldo Brandão Vilela (HGE-AL), Terapeuta Ocupacional, Maceió, AL, Brasil. (enisiagfreitas@gmail.com)

E-mail para contato: maria.cabral.2@ebserh.gov.br

 
description: Texto Completo:  https://doi.org/10.5281/zenodo.10576794
Optical pump-rejection filter based on silicon sub-wavelength engineered photonic structures
Creators: name: Pérez-Galacho, Diego
name: Alonso-Ramos, Carlos
name: Mazeas, Florent
name: Roux, Xavier Le
name: Oser, Dorian
name: Zhang, Weiwei
name: Marris-Morini, Delphine
name: Labonté, Laurent
name: Tanzilli, Sébastien
name: Cassan, Éric
name: Vivien, Laurent
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The high index contrast of the silicon-on-insulator (SOI) platform allows the realization of ultra-compact photonic circuits. However, this high contrast hinders the implementation of narrow-band Bragg filters. These typically require corrugations widths of a few nanometers or double-etch geometries, hampering device fabrication. Here we report, for the first time, on the realization of SOI Bragg filters based on sub-wavelength index engineering in a differential corrugation width configuration. The proposed double periodicity structure allows narrow-band rejection with a single etch step and relaxed width constraints. Based on this concept, we experimentally demonstrate a single-etch, $\mathbf{220\,nm}$ thick, Si Bragg filter featuring a corrugation width of $\mathbf{150\,nm}$, a rejection bandwidth of $\mathbf{1.1\,nm}$ and an extinction ratio exceeding $\mathbf{40\,dB}$. This represents a ten-fold width increase compared to conventional single-periodicity, single-etch counterparts with similar bandwidths.
Graded Tambara Functors
Creators: name: Angeltveit, Vigleik
name: Bohmann, Anna Marie
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55Q91, 55Q10

description: We define the notion of an $\mathcal{RO}(G)$-graded Tambara functor and prove that any $G$-spectrum with norm multiplication gives rise to such an $\mathcal{RO}(G)$-graded Tambara functor.
description: 25 pages; elaborated on the description of graded Tambara functors and clarified some of the category theory. Added more detailed references
The distribution of first hitting times of random walks on directed Erdős-Rényi networks
Creators: name: Tishby, Ido
name: Biham, Ofer
name: Katzav, Eytan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We present analytical results for the distribution of first hitting times of random walkers (RWs) on directed Erdős-Rényi (ER) networks. Starting from a random initial node, a random walker hops randomly along directed edges between adjacent nodes in the network. The path terminates either by the retracing scenario, when the walker enters a node which it has already visited before, or by the trapping scenario, when it becomes trapped in a dead-end node from which it cannot exit. The path length, namely the number of steps, $d$, pursued by the random walker from the initial node up to its termination, is called the first hitting time. Using recursion equations, we obtain analytical results for the tail distribution of first hitting times, $P(d>\ell)$. The distribution $P(d>\ell)$ can be expressed as a product of an exponential distribution and a Rayleigh distribution. We obtain expressions for the mean, median and standard deviation of this distribution in terms of the network size and its mean degree. We also calculate the distribution of last hitting times, namely the path lengths of self-avoiding walks on directed ER networks, which do not retrace their paths. The last hitting times are found to be much longer than the first hitting times. The results are compared to those obtained for undirected ER networks. It is found that the first hitting times of RWs in a directed ER network are much longer than in the corresponding undirected network. This is due to the fact that RWs on directed networks do not exhibit the backtracking scenario, which is a dominant termination mechanism of RWs on undirected networks. It is shown that our approach also applies to a broader class of networks, referred to as semi-ER networks, in which the distribution of in-degrees is Poisson, while the out-degrees may follow any desired distribution with the same mean as the in-degree distribution.
description: 30 pages, 9 figures. arXiv admin note: text overlap with arXiv:1609.08375, arXiv:1606.01560
On automorphic forms of small weight for fake projective planes
Creators: name: Galkin, Sergey
name: Karzhemanov, Ilya
name: Shinder, Evgeny
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: On the projective plane there is a unique cubic root of the canonical bundle and this root is acyclic. On fake projective planes such root exists and is unique if there are no 3-torsion divisors (and usually exists, but not unique, otherwise). Earlier we conjectured that any such cubic root must be acyclic. In the present note we give two short proofs of this statement and show acyclicity of some other line bundles on the fake projective planes with at least $9$ automorphisms. Similarly to our earlier work we employ simple representation theory for non-abelian finite groups. The first proof is based on the observation that if some line bundle is non-linearizable with respect to a finite abelian group, then it should be linearized by a finite, \emph{non-abelian}, Heisenberg group. For the second proof, we also demonstrate vanishing of odd Betti numbers for a class of abelian covers, and use linearization of an auxiliary line bundle as well.
description: 14 pages; the title has been changed and the text revised following the referee's suggestions
MPEC 2024-B144 : COMET P/2001 Q6 = P/2023 X5 (NEAT)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: COMET P/2001 Q6 = P/2023 X5 (NEAT)

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Structural changes induced by electric currents in a single crystal of Pr$_2$CuO$_4$
Creators: name: Roy, Susmita
name: Ye, Feng
name: Morgan, Zachary
name: Jalali, Syed I. A.
name: Zhang, Yu
name: Cao, Gang
name: Kaneko, Nobu-Hisa
name: Greven, Martin
name: Raj, Rishi
name: Reznik, Dmitry
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate a novel approach to the structural and electronic property modification of perovskites, focusing on Pr$_2$CuO$_4$, an undoped parent compound of a class of electron-doped copper-oxide superconductors. Currents were passed parallel or perpendicular to the copper-oxygen layers with the voltage ramped up until a rapid drop in the resistivity was achieved, a process referred to as "flash". The current was then further increased tenfold in current-control mode. This state was quenched by immersion into liquid nitrogen. Flash can drive many compounds into different atomic structures with new properties, whereas the quench freezes them into a long-lived state. Single-crystal neutron diffraction of as-grown and modified Pr$_2$CuO$_4$ revealed a $\sqrt{10}$x$\sqrt{10}$ superlattice due to oxygen-vacancy order. The diffraction peak intensities of the superlattice of the modified sample were significantly enhanced relative to the pristine sample. Raman-active phonons in the modified sample were considerably sharper. Measurements of electrical resistivity, magnetization and two-magnon Raman scattering indicate that the modification affected only the Pr-O layers, but not the Cu-O planes. These results point to enhanced oxygen-vacancy order in the modified samples well beyond what can be achieved without passing electrical current. Our work opens a new avenue toward electric field/quench control of structure and properties of layered perovskite oxides.
Mikrostrukturelle Entwicklung in perowskitischen Systemen unter besonderer Berücksichtigung defektchemischer Einflüsse
Creators: name: Altermann, Fabian J.
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023
Subjects: Keramik
Funktionskeramik
Perowskit
Defektchemie
Kornwachstum

description: Die vorliegende Arbeit zeigt den Zusammenhang zwischen der Defektchemie der Perowskite und deren Verdichtungs- und Kornwachstumsverhalten am Beispiel des technisch relevanten, pseudoternären Systems $BaO-SrO-TiO_2$. Durch gezielte Variation von Zusammensetzung und Prozessparametern kann während der Synthese der Ausgangspulver, aber auch bei der Herstellung der gesinterten Mikrostrukturen die Auswirkung dieser Variation auf die Defektchemie der Probe und deren Zusammenhang mit dem Kornwachstum beobachtet werden. Zunächst wird anhand mehrerer Charakterisierungsmethoden (u. a. röntgenographisch und durch Messung des elektrischen Hochtemperaturwiderstands) die hohe Qualität der Pulver gezeigt. Erst dadurch wird die Beobachtung der defektchemischen Einflüsse auf die Material- bzw. Wachstumseigenschaften möglich. An verschiedenen Systemen ($SrTiO_3$, $SrTiO_3:Nb$, $BaTiO_3$, $BaTiO_3:La$, $Ba_xSr_{(1–x)}TiO_3$) werden die defektchemischen Parameter geändert und die aus Sinterabbruchexperimenten resultierende Mikrostrukturen und deren Wachstumsverhalten charakterisiert. Durch verschiedene statistische Methoden kann dabei Einfluss und Folge wie Stagnation oder abnormales Kornwachstum beschrieben werden. Durch Adaption des für Metalle hinlänglich bekannten, defektchemischen solute-drag Effekts und dessen Erweiterung auf intrinsische Defekte (v. a. Kationen-Leerstellen) wird ein mikroskopischer Mechanismus vorgeschlagen, der diese defektchemischen Einflüsse und deren Folgen für Material und Mikrostruktur verbindet. Dieser Mechanismus wird im Licht der vorhandenen Literatur, die dadurch erweitert interpretiert werden kann, sowie anhand der in der vorliegenden Arbeit gewonnenen Ergebnisse abschließend diskutiert und zusammengefasst
Error-tolerant oblivious transfer in the noisy-storage model
Creators: name: Lupo, Cosmo
name: Peat, James T.
name: Andersson, Erika
name: Kok, Pieter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The noisy-storage model of quantum cryptography allows for information-theoretically secure two-party computation based on the assumption that a cheating user has at most access to an imperfect, noisy quantum memory, whereas the honest users do not need a quantum memory at all. In general, the more noisy the quantum memory of the cheating user, the more secure the implementation of oblivious transfer, which is a primitive that allows universal secure two-party and multi-party computation. For experimental implementations of oblivious transfer, one has to consider that also the devices held by the honest users are lossy and noisy, and error correction needs to be applied to correct these trusted errors. The latter are expected to reduce the security of the protocol, since a cheating user may hide themselves in the trusted noise. Here we leverage entropic uncertainty relations to derive tight bounds on the security of oblivious transfer with a trusted and untrusted noise. In particular, we discuss noisy storage and bounded storage, with independent and correlated noise.
description: v2: improved presentation, results added on bounded memory and correlated noise