cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Time evolution of a non-singular primordial black hole
Creators: name: Mbonye, Manasse R.
name: Battista, Nicholas
name: Farr, Benjamin
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There is growing notion that black holes may not contain curvature singularities (and that indeed nature in general may abhor such spacetime defects). This notion could have implications on our understanding of the evolution of primordial black holes (PBHs) and possibly on their contribution to cosmic energy. This paper discusses the evolution of a non-singular black hole (NSBH) based on a recent model [1]. We begin with a study of the thermodynamic process of the black hole in this model, and demonstrate the existence of a maximum horizon temperature T_{max}, corresponding to a unique mass value. At this mass value the specific heat capacity C changes signs to positive and the body begins to lose its black hole characteristics. With no loss of generality, the model is used to discuss the time evolution of a primordial black hole (PBH), through the early radiation era of the universe to present, under the assumption that PBHs are non-singular. In particular, we track the evolution of two benchmark PBHs, namely the one radiating up to the end of the cosmic radiation domination era, and the one stopping to radiate currently, and in each case determine some useful features including the initial mass m_{f} and the corresponding time of formation t_{f}. It is found that along the evolutionary history of the universe the distribution of PBH remnant masses (PBH-RM) PBH-RMs follows a power law. We believe such a result can be a useful step in a study to establish current abundance of PBH-MRs.
description: To appear in Int. J. Mod. Phys. D
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐºÑÐ¸Ð¿ÑÐ¾Ð² Ð´Ð»Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³Ð°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Development of scripts for render optimization
Creators: name: ÐÑÐ°Ð½ÐºÐ¸Ð½, Ð Ð¾Ð¼Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÑÐµÐ½Ð´ÐµÑÐ¸Ð½Ð³
Ð±Ð»ÑÐ½Ð´ÐµÑ
Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ
ÑÑÐºÐ¾ÑÐµÐ½Ð¸Ðµ
ÑÑÐµÐ½Ð°
3D Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÑÐºÑÐ¸Ð¿Ñ
rendering
blender
optimization
boost
3D modeling
script

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð¿Ð¸ÑÐ°Ð½ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐºÑÐ¸Ð¿ÑÐ°, ÑÐ¼ÐµÐ½ÑÑÐ°ÑÑÐµÐ³Ð¾ Ð²ÑÐµÐ¼Ñ Ð½Ð° Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÑ ÑÑÐµÐ½Ñ Ð² Ð¸Ð·Ð¾Ð±ÑÐ°Ð¶ÐµÐ½Ð¸Ðµ Ð¸ ÑÐ½Ð¸Ð¶Ð°ÑÑÐµÐ³Ð¾ Ð½Ð°Ð³ÑÑÐ·ÐºÑ Ð½Ð° Ð¿Ð°Ð¼ÑÑÑ Ð²Ð¸Ð´ÐµÐ¾Ð°Ð´Ð°Ð¿ÑÐµÑÐ° Ð¸ Ð¿ÑÐ¾ÑÐµÑÑÐ¾ÑÐ°. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ¾Ð² ÑÑÐµÐ´Ñ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸, Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½ÑÐ¹ ÑÐ°Ð·Ð±Ð¾Ñ ÐºÐ°Ð¶Ð´Ð¾Ð³Ð¾ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ° Ð¸ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ° Python API. ÐÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¾Ð²Ð°Ð½Ð° ÑÐ°Ð±Ð¾ÑÐ° Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð².
description: This paper describes the process of developing a script that reduces the time for processing a scene into an image and reduces the load on the memory of the video adapter and processor. The analysis of development environment tools, detailed analysis of each parameter and Python API are presented. The work of the program is demonstrated and the analysis of the results obtained is carried out.
HPC with Python: An MPI-parallel implementation of the Lattice Boltzmann Method
Creators: name: Pastewka, Lars
name: Greiner, Andreas
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Hochleistungsrechnen
subject: 004
subject: Lattice Boltzmann
subject: MPI
subject: Python

description: The Lattice Boltzmann Method is well suited for high performance computational fluid dynamics. We show by means of a common two-dimensional test case, the lid-driven cavity problem, that excellent parallel scaling can be achieved in an implementation based on pure Python, using the numpy library and the Message Passing Interface. We highlight opportunities and pitfalls for the implementation of parallel high-performance codes in the high-level language Python.
Dynamic Resource Extension for Data Intensive Computing with Specialized Software Environments on HPC Systems
Creators: name: Heidecker, Christoph
name: Schnepf, Matthias J.
name: Cube, R. Florian Von
name: Giffels, Manuel
name: Sauter, Martin
name: Quast, Günter
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Hochleistungsrechnen
subject: 004
subject: bwHPC Symposium
subject: HPC
subject: HEP
subject: LHC
subject: NEMO

description: Modern High Energy Physics (HEP) requires large-scale processing of extensive amounts of scientific data. The needed computing resources are currently provided statically by HEP specific computing centers. To increase the number of available resources, for example to cover peak loads, the HEP computing development team at KIT concentrates on the dynamic integration of additional computing resources into the HEP infrastructure. Therefore, we developed ROCED, a tool to dynamically request and integrate computing resources including resources at HPC centers and commercial cloud providers. Since these resources usually do not support HEP software natively, we rely on virtualization and container technologies, which allows us to run HEP workflows on these so called opportunistic resources. Additionally, we study the efficient processing of huge amounts of data on a distributed infrastructure, where the data is usually stored at HEP specific data centers and is accessed remotely over WAN. To optimize the overall data throughput and to increase the CPU efficiency, we are currently developing an automated caching system for frequently used data that is transparently integrated into the distributed HEP computing infrastructure.
Possible solubilization of various mineral elements in the rhizosphere of Lupinus albus L
Creators: name: Takao, Atsuhide
name: Wasaki, Jun
name: Fujimoto, Hisae
name: Maruyama, Hayato
name: Shinano, Takuro
name: Watanabe, Toshihiro
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Plant Biology

description: Lupinus albus L. (lupin) has a high tolerance for phosphorus deficient conditions as its roots can solubilize the unavailable phosphorus in the rhizosphere soil. The roots may also be able to solubilize other elements, but this requires further investigation. In this study, therefore, we conducted two experiments to comprehensively investigate the effects of lupin roots on the mineral dynamics of the rhizosphere soil. First, a mixed cropping experiment was conducted, in which lupin shared a rhizosphere with soybean (Glycine max (L.) Merr.) in a long-term experimental field with four fertilizer treatments: complete fertilization (+NPK), without nitrogen (−N), without phosphorus (−P), and without potassium (−K). The results of shoot dry weight of plants cultivated alone indicated that lupin is highly tolerant to all N, P, and K deficiencies, while soybean can adapt to N deficiency with the help of rhizobia but is less tolerant to P and K deficiencies than lupin. When mixed-cropped with lupin, the concentrations of many elements in the soybean leaf increased, particularly with the −N and −P treatments. Furthermore, soybean growth was significantly improved when cropped with lupin in the −N and −P treatments. Second, a comparison of the elemental profiles of hydroponically and field-soil-grown plants was conducted. Under hydroponic conditions, the rhizosphere effect is negligible when the culture medium is well circulated. The lupin/soybean ratios for leaf mineral concentrations were considerably larger in the field cultivated plants when compared with the hydroponic cultivations for elements such as sodium, potassium, cesium, phosphorus, iron, copper, and molybdenum, as there were lower concentrations of these elements in the soybean leaves in the field. These results indicate that lupin roots can solubilize a variety of insoluble elements in the soil, which may be the reason why lupin can adapt to various nutrient deficient soils. In the lupin rhizosphere, the solubilization of cesium, which is generally strongly fixed by soil minerals and not easily leached, was particularly pronounced. This implies that the surface structure of clay minerals might be altered in the lupin rhizosphere, resulting in the fixed forms of various elements becoming available.
GNLStools.py: A generalized nonlinear Schrödinger Python module implementing different models of input pulse quantum noise
Creators: name: Melchert, Oliver
name: Demircan, Ayhan
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2022
Subjects: subject: Generalized nonlinear Schrödinger equation
subject: Python
subject: Quantum noise
subject: Spectral coherence
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: We provide Python tools enabling numerical simulation and analysis of the propagation dynamics of ultrashort laser pulses in nonlinear waveguides. The modeling approach is based on the widely used generalized nonlinear Schrödinger equation for the pulse envelope. The presented software implements the effects of linear dispersion, pulse self-steepening, and the Raman effect. The focus lies on the implementation of input pulse shot noise, i.e. classical background fields that mimic quantum noise, which are often not thoroughly presented in the scientific literature. We discuss and implement commonly adopted quantum noise models based on pure spectral phase noise, as well as Gaussian noise. Coherence properties of the resulting spectra can be calculated. We demonstrate the functionality of the software by reproducing results for a supercontinuum generation process in a photonic crystal fiber, documented in the scientific literature. The presented Python tools are open-source and released under the MIT license in a publicly available software repository.
Additional file 2 of The oral microbiome and salivary proteins influence caries in children aged 6 to 8 years
Creators: name: Chen, Wang
name: Jiang, Qian
name: Yan, Guowei
name: Yang, Deqin
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified

description: Additional file 2: Table S2. The parameters used for the database search in Mascot search engine showing the parameters used for the database search.
Estimation of isotropization time ($τ_{\rm iso}$) of QGP from direct photons
Creators: name: Bhattacharya, Lusaka
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate transverse momentum distribution of direct photons from various sources by taking into account the initial state momentum anisotropy of quark gluon plasma (QGP). The total photon yield is then compared with the recent measurement of photon transverse momentum distribution by the PHENIX collaboration. It is also demonstrated that the presence of such an anisotropy can describe the PHENIX photon data better than the isotropic case in the present model. We show that the isotropization time thus extracted lies within the range $1.5 \geqτ_{\rm iso} \geq 0.5$ fm/c for the initial condition used here.
description: 4 pages, 3 eps figures, To appear in the proceedings of the 4th International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions (Hard Probes 2010), Eilat, Israel, 10-15 October 2010, To appear in Nucl. Phys. A
de.NBI Cloud Storage Tübingen. A federated and georedundant solution for large scientific data
Creators: name: Gläßle, Benjamin
name: Hanussek, Maximilian
name: Bartusch, Felix
name: Lutz, Volker
name: Hahn, Ulrich
name: Dilling, Werner
name: Walter, Thomas
name: Krüger, Jens
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Hochleistungsrechnen
subject: 004
subject: bwHPC Symposium
subject: de.NBI, Cloud
subject: Federated Storage
subject: Data Handling

description: The »German Network for Bioinformatics Infrastructure«, or in short »de.NBI«, is a national research infrastructure providing bioinformatics services to users in life sciences research, biomedicine and related fields. At five sites across Germany, cloud sites were established to host the bioinformatics services. In Tübingen an extension of the storage capabilites of the cloud was planned, implemented and brought into production. We here report about the motivation, requirements, design decisions and experiences which might serve as inspiration for other large scale storage endeavours in the academic domain.
Harmonic maps from surfaces of arbitrary genus into spheres
Creators: name: Assimos, Renan
name: Jost, Jürgen
Publisher: name: Berlin ; Heidelberg : Springer
Year: 2022
Subjects: subject: existence
subject: mappings
subject: flow
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: We relate the existence problem of harmonic maps into S2 to the convex geometry of S2. On one hand, this allows us to construct new examples of harmonic maps of degree 0 from compact surfaces of arbitrary genus into S2. On the other hand, we produce new examples of regions that do not contain closed geodesics (that is, harmonic maps from S1) but do contain images of harmonic maps from other domains. These regions can therefore not support a strictly convex functions. Our construction uses M. Struwe’s heat flow approach for the existence of harmonic maps from surfaces.
Development of a new patient-reported outcome measure for children with lower limb deformities : concept elicitation, item development and content validation
Creators: name: Chhina, Harpreet Kaur
Publisher: name: University of British Columbia
Year: 2021

description: Objectives: To develop a conceptual framework, generate items and scales, and establish content validity for a new patient-reported outcome measure (PROM) for children with lower limb deformities. Methods: A systematic review was conducted to synthesize the evidence on the use of PROMs to measure Health Related Quality of Life (HRQL) of children with lower limb deformities. A qualitative phase involved semi-structured face-to-face interviews with children with lower limb deformities and their parents from Canada, Ethiopia, India and the USA. Using the knowledge gained from these interviews, a list of items was generated and used to create individual scales for the new PROM. The scales were shown to children with lower limb deformities from Australia, Canada and the USA. Feedback was also obtained from clinical experts. The feedback was used to determine if the content of the scales was comprehensible, relevant and comprehensive (i.e., to determine content validity). Results: The systematic review confirmed that there was no condition-specific PROM for children with lower limb deformities. Qualitative interviews allowed us to elicit concepts that matter most to children with such deformities and develop conceptual framework covering the most important concerns. A set of independently functioning scales measuring physical function, leg symptoms, hip symptoms, knee symptoms, ankle symptoms, foot symptoms, leg-related distress, appearance, school function, social function, and psychological function were developed. Items that were difficult to understand were revised. New items were added as suggested by patients and experts. Conclusions: Lower limb deformities can substantially impact HRQL of children. To date, no condition-specific PROMs exist for this patient population. We have developed items for a set of scales, guided by qualitative interviews with the target patient population that formed the basis of a new PROM. The next phase in the development and validation of this PROM includes a pilot test to ensure the scales work as hypothesized, followed by an international field test study to examine its psychometric properties. Once fully validated, this PROM can be used to measure HRQL of children with lower limb deformities and to evaluate the effectiveness of interventions aimed at improving HRQL in these children.
title: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ ÑÐ°ÑÑÑ ÐÐ Ð­Ð¡ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ 6Ñ 300 + 4Ñ 500 ÐÐÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Electric part of the SDPP with a capacity of 6x300 + 4x500 MW
Creators: name: ÐÐ½ÑÐ¾Ð½Ð¾Ð², ÐÑÑÑÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐÐ Ð­Ð¡
Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÑ
ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ
ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°
ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ðµ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ðµ
Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ð¸
ÑÐ°Ð·ÑÐµÐ´Ð¸Ð½Ð¸ÑÐµÐ»Ð¸
ÑÐ¸Ð½Ñ
ÑÐ¾ÐºÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ñ
SDPP
generators
transformers
block diagram
short circuit
switches
disconnecters
busbars
conductors

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑÑÐ½Ð¾ÑÑÑ Ð²ÑÐ±Ð¾ÑÐ° ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹; Ð¿Ð¾Ð´Ð±Ð¾ÑÐ°, Ð¸ÑÑÐ¾Ð´Ñ Ð¸Ð· ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ð¹, Ð³ÐµÐ½ÐµÑÐ°ÑÐ¾ÑÐ¾Ð², ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð², ÑÑÐµÐ¼Ñ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ². ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÐµÑ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð´Ð»Ñ Ð¿Ð¾Ð´Ð±Ð¾ÑÐ° ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð² Ð¸ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ¸Ñ ÑÐ°ÑÑÐµÐ¹.
description: In the given work the essence of the choice of electrical connections scheme; of selection generators, transformers, circuit switchgear based on the requirements. The calculation of shortcircuit currents and data analysis were carried out for selection of switching devices and current carrying parts.
On generalized Witt algebras in one variable
Creators: name: Pakianathan, Jonathan
name: Nam, Ki Bong
Publisher: name: arXiv
Year: 2010
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B65, 17C20, 17B40

description: We study a class of infinite dimensional Lie algebras called generalized Witt algebras (in one variable). These include the classical Witt algebra and the centerless Virasoro algebra as important examples. We show that any such generalized Witt algebra is a semisimple, indecomposable Lie algebra which does not contain any abelian Lie subalgebras of dimension greater than one. We develop an invariant of these generalized Witt algebras called the spectrum, and use it to show that there exist infinite families of nonisomorphic, simple, generalized Witt algebras and infinite families of nonisomorphic, nonsimple, generalized Witt algebras. We develop a machinery that can be used to study the endomorphisms of a generalized Witt algebra in the case that the spectrum is "discrete". We use this to show, that among other things, every nonzero Lie algebra endomorphism of the classical Witt algebra is an automorphism and every endomorphism of the centerless Virasoro algebra fixes a canonical element up to scalar multiplication. However, not every injective Lie algebra endomorphism of the centerless Virasoro algebra is an automorphism.
description: 33 pages
Residence Times of Particles in Diffusive Protoplanetary Disk Environments I. Vertical Motions
Creators: name: Ciesla, Fred J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The chemical and physical evolution of primitive materials in protoplanetary disks are determined by the types of environments they are exposed to and their residence times within each environment. Here a method for calculating representative paths of materials in diffusive protoplanetary disks is developed and applied to understanding how the vertical trajectories that particles take impact their overall evolution. The methods are general enough to be applied to disks with uniform diffusivity, the so-called "constant-$α$" cases, and disks with a spatially varying diffusivity, such as expected in "layered-disks." The average long-term dynamical evolution of small particles and gaseous molecules is independent of the specific form of the diffusivity in that they spend comparable fractions of their lifetimes at different heights in the disk. However, the paths that individual particles and molecules take depend strongly on the form of the diffusivity leading to a different range of behavior of particles in terms of deviations from the mean. As temperatures, gas densities, chemical abundances, and photon fluxes will vary with height in protoplanetary disks, the different paths taken by primitive materials will lead to differences in their chemical and physical evolution. Examples of differences in gas phase chemistry and photochemistry are explored here. The methods outlined here provide a means of integrating particle dynamics with chemical models to understand the formation and evolution of primitive materials in protoplanetary disks over timescales of $10^5$-$10^6$ years.
description: Accepted to ApJ
Concepts for migration-sensitive health monitoring
Creators: name: Schumann, Maria
name: Kajikhina, Katja
name: Polizzi, Antonino
name: Sarma, Navina
name: Hoebel, Jens
name: Bug, Marleen
name: Bartig, Susanne
name: Lampert, Thomas
name: Santos-Hövener, Claudia
Publisher: name: Robert Koch-Institut
Year: 2019
Subjects: subject: MIGRATION
subject: HEALTH MONITORING
subject: ACCULTURATION
subject: DISCRIMINATION
subject: SUBJECTIVE SOCIAL STATUS
subject: 610 Medizin und Gesundheit

description: According to microcensus data, nearly one quarter of the German population has a migration background. This means that either themselves or at least one parent was born without German citizenship. Based on the currently available data and due to the underrepresentation of specific population groups, representative findings on the health of the total population residing in Germany are only possible to a limited degree. Against this backdrop, the Robert Koch Institute initiated the Improving Health Monitoring in Migrant Populations (IMIRA) project. The project aims to establish a migration-sensitive health monitoring system and to better represent people with a migration background in health surveys conducted by the Robert Koch Institute. In this context it is crucial to review and further develop relevant migrationsensitive concepts and appropriate surveying instruments. To achieve this, the concepts of acculturation, discrimination, religion and subjective social status were selected. This article theoretically embeds these concepts. Furthermore, we describe their application in epidemiology as well as provide a proposal on how to measure and operationalise these concepts. Moreover, recommendations for action are provided regarding the potential application of these concepts in health monitoring at the Robert Koch Institute.
30 years after the fall of the Berlin Wall: Regional health differences in Germany
Creators: name: Lampert, Thomas
name: Müters, Stephan
name: Kuntz, Benjamin
name: Dahm, Stefan
name: Nowossadeck, Enno
Publisher: name: Robert Koch-Institut
Year: 2019
Subjects: subject: REGIONAL DIFFERENCES
subject: EAST AND WEST GERMAN FEDERAL STATES
subject: LIFE EXPECTANCY
subject: HEALTH
subject: RISK FACTORS
subject: 610 Medizin und Gesundheit

description: Following the fall of the Berlin Wall in November 1989, considerable effort was made to bring the living conditions and levels of social participation in the former East German federal states into line with the former West German federal states. As a result, differences in health between the East and the West diminished significantly, in many cases as early as the 1990s, examples being life expectancy and cardiovascular mortality. In regard to health behaviour, the overall tendency has also clearly been one of convergence. Thus, only very small differences can be observed today, for example in the use of tobacco or in the prevalence of obesity. Yet the results also highlight the insufficiency of regarding the remaining differences as a simple comparison between East and West. Instead, the focus should shift towards smallerscale approaches that take regional differences in living conditions into account.
Degrees and signatures of broken PT-symmetry in (non-uniform) lattices
Creators: name: Scott, Derek D.
name: Joglekar, Yogesh N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the robustness of parity- and time-reversal ($\mP\mT$) symmetric phase in an $N$-site lattice with position-dependent, parity-symmetric hopping function and a pair of imaginary, $\mP\mT$-symmetric impurities. We find that the "fragile" $\mP\mT$-symmetric phase in these lattices is stronger than its counterpart in a lattice with constant hopping. With an open system in mind, we explore the degrees of broken $\mP\mT$-symmetry and their signatures in single-particle wavepacket evolution. We predict that when the $\mP\mT$-symmetric impurities are closest to each other, the time evolution of a wavepacket in an even-$N$ lattice is remarkably different from that in an odd-$N$ lattice. Our results suggest that $\mP\mT$-symmetry breaking in such lattices is accompanied by rich, hitherto unanticipated, phenomena.
description: 5 figures
Simultaneous Code/Error-Trellis Reduction for Convolutional Codes Using Shifted Code/Error-Subsequences
Creators: name: Tajima, Masato
name: Okino, Koji
name: Miyagoshi, Takashi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we show that the code-trellis and the error-trellis for a convolutional code can be reduced simultaneously, if reduction is possible. Assume that the error-trellis can be reduced using shifted error-subsequences. In this case, if the identical shifts occur in the subsequences of each code path, then the code-trellis can also be reduced. First, we obtain pairs of transformations which generate the identical shifts both in the subsequences of the code-path and in those of the error-path. Next, by applying these transformations to the generator matrix and the parity-check matrix, we show that reduction of these matrices is accomplished simultaneously, if it is possible. Moreover, it is shown that the two associated trellises are also reduced simultaneously.
description: 5 pages, submitted to the 2011 IEEE International Symposium on Information Theory
title: ÐÐ½ÑÐµÑÑÐµÐºÑÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÑ Ð² Ð¿Ð¾Ð²ÐµÑÑÐ¸ ÐÐ¶Ð¾Ð½Ð° Ð . Ð . Ð¢Ð¾Ð»ÐºÐ¸Ð½Ð° Â«Ð¥Ð¾Ð±Ð±Ð¸Ñ, Ð¸Ð»Ð¸ Ð¢ÑÐ´Ð° Ð¸ Ð¾Ð±ÑÐ°ÑÐ½Ð¾Â»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Intertextuality in the novel by J. R. R. Tolkien "The Hobbit, or There and Back Again"
Creators: name: Ð¡Ð°Ð³Ð¸ÑÐ¾Ð²Ð°, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¸Ð½ÑÐµÑÑÐµÐºÑÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÑ
ÑÐµÐ¾ÑÐ¸Ñ Ð¸Ð½ÑÐµÑÐµÐºÑÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÐ¸
ÑÐµÐ¼Ð¸Ð½Ð¸ÑÑÐµÐ½ÑÐ¸Ñ
Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ¸ Ð¸Ð½ÑÐµÑÑÐµÐºÑÑÑÐ°Ð»ÑÐ½ÑÑ Ð²ÐºÐ»ÑÑÐµÐ½Ð¸Ð¹
Ð¿ÑÐ¸ÐµÐ¼Ñ Ð½ÑÐµÑÑÐµÐºÑÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÐ¸
intertextuality
the theory of intertextuality
reminiscence
sources of intertextuality
intertextual figures

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description: This work analyzes the intertextuality in the novel âThe Hobbit, or There and Backâ by John Ronald Ruel Tolkien. The work studies the basis of the theory of intertextuality, types and sources of intertextual inclusions, the history of the creation of the work. The influence of intertextual inclusions on the plot and the characters is revealed.
Softness dependence of the Anomalies for the Continuous Shouldered Well potential
Creators: name: Vilaseca, Pol
name: Franzese, Giancarlo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: By molecular dynamic simulations we study a system of particles interacting through a continuous isotropic pairwise core-softened potential consisting of a repulsive shoulder and an attractive well. The model displays a phase diagram with three fluid phases, a gas-liquid critical point, a liquid-liquid critical point, and anomalies in density, diffusion and structure. The hierarchy of the anomalies is the same as for water. We study the effect on the anomalies of varying the softness of the potential. We find that, making the soft-core steeper, the regions of density and diffusion anomalies contract in the T - ρ plane, while the region of structural anomaly is weakly affected. Therefore, a liquid can have anomalous structural behavior without density or diffusion anomalies. We show that, by considering as effective distances those corresponding to the maxima of the first two peaks of the radial distribution function g(r) in the high-density liquid, we can generalize to continuous two-scales potentials a criterion for the occurrence of the anomalies of density and diffusion, originally proposed for discontinuous potentials. We observe that the knowledge of the structural behavior within the first two coordination shells of the liquid is not enough to establish the occurrence of the anomalies. By introducing the density derivative of the the cumulative order integral of the excess entropy we show that the anomalous behavior is regulated by the structural order at distances as large as the fourth coordination shell. By comparing the results for different softness of the potential, we conclude that the disappearing of the density and diffusion anomalies for the steeper potentials is due to a more structured short-range order. All these results increase our understanding on how, knowing the interaction potential, we can evaluate the possible presence of anomalies for a liquid.
Analytical Galaxy Profiles for Photometric and Lensing Analysis
Creators: name: Spergel, David N
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This article introduces a family of analytical functions of the form x^ν K_ν(x), where K_ν is the incomplete Bessel function of the third kind. This family of functions can describe the density profile, projected and integrated light profiles and the gravitational potentials of galaxies. For the proper choice of parameters, these functions accurately approximate Sersic functions over a range of indices and are good fits to galaxy light profiles. With an additional parameter corresponding to a galaxy core radius, these functions can fit galaxy like M87 over a factor of 100,000 in radius. Unlike Sersic profiles, these functions have simple analytical 2-dimensional and 3-dimensional Fourier transforms, so they are easily convolved with spatially varying point spread function and are well suited for photometric and lensing analysis. We use these functions to estimate the effects of seeing on lensing measurements and show that high S/N measurements, even when the PSF is larger than the galaxy effective radius, should be able to recover accurate estimates of lensing distortions by weighting light in the outer isophotes that are less effected by seeing.
bwForCluster NEMO. Forschungscluster für die Wissenschaft
Creators: name: Janczyk, Michael
name: Suchodoletz, Dirk Von
name: Wiebelt, Bernd
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Hochleistungsrechnen
subject: 004
subject: bwHPC Symposium
subject: High Performance Computing
subject: Research Clusters
subject: HPC
subject: HPC Governance
subject: Virtualisierte Forschungsumgebungen
subject: Fairshare Scheduling

description: In den ersten zweieinhalb Jahren seiner Betriebszeit entwickelte sich der bwFor- Cluster NEMO zu einem signifikanten Baustein in den landesweiten Forschungsinfrastrukturen für das »High Performance Computing«. Der in der Zwischenzeit erhebliche Ausbau und die Erweiterung des Systems durch Shareholder ist ein Beleg für die Tragfähigkeit seines Betriebsmodells und das Vertrauen in das landesweite HPC-Konzept. Hierzu tragen nicht nur die lokale und landesweite Governance bei, sondern ebenfalls der enge Austausch innerhalb der NEMO-Community. Mit dem System wird eine stabile Umgebung für die diversen Bedürfnisse der Wissenschafts-Communities bereitgestellt. Parallel dazu werden neue Betriebsund Monitoring-Konzepte entwickelt und getestet. Aktuelle und neuartige Herausforderungen liegen in der Unterstützung von »Virtualisierten Forschungsumgebungen « und zukünftigen digitalen Workflows ebenso wie in der Containerisierung und der Implementierung effektiver Betriebsmodelle gemeinsam mit den am Standort Freiburg betriebenen Cloud-Infrastrukturen.
Strada Vinadi-Samnaun: opere di messa in sicurezza dal pericolo di caduta massi presso la Val Alpetta
Creators: name: Casartelli, Carlo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2023

description: La Samnaunerstrasse collega la località di Vinadi al paese di Samnaun, in Canton Grigioni. Nel tratto di strada tra il km 3,00 e il km 4,00 sono presenti due opere di protezione: una galleria naturale ed una artificiale. Queste opere non sono sufficienti per la messa in sicurezza dell’intero tratto di strada considerato. L’analisi del processo di caduta massi ha permesso di definire delle aree più esposte a questo pericolo, per le quali sono necessarie delle opere di protezione. Per ognuna di queste aree sono state elaborate delle varianti di opere di protezione per ridurre od eliminare completamente il pericolo di caduta massi sussistente sul tratto di strada in corrispondenza della Val Alpetta.
Una finestra sul mondo: un percorso di media education
Creators: name: Settimo, Daphne
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Il presente documento riporta una ricerca azione svolta in una classe seconda presso la Scuola cantonale di commercio di Bellinzona. A fronte di alcune difficoltà interpretative legate alla comprensione di messaggi proposti dai mass media, gli studenti hanno seguito, nell’arco di 10 ore lezione, un percorso di media education, disciplina volta a coniugare aspetti di didattica e comunicazione. I riferimenti teorici mirano in particolare all’approfondimento di quattro aree di intervento specifiche: produzione, linguaggio, rappresentazione e pubblico. Il lavoro di ricerca ha permesso di identificare le motivazioni alla base delle difficoltà di lettura, dovute ad un approccio superficiale influenzato dalla grande offerta di informazioni e da un particolare condizionamento emotivo, ed ha mostrato l’efficacia della media education nell’aiutare a comprendere i contenuti offerti dai mass media. Il raggiungimento degli obiettivi ha dimostrato le potenzialità di questo approccio, volto ad attivare le risorse conoscitive degli allievi e a sviluppare un approccio critico nei confronti dei media, lasciando intravedere possibili piste di sviluppo future legate non solo all’ambito dell’interpretazione, ma anche a quello della produzione, una competenza sempre più richiesta soprattutto a fronte delle possibilità offerte dal web partecipativo. Relatore: Lorenzo Cantoni. Materia: comunicazione
Normale Grotesk La rinascita di una font storica
Creators: name: Schneeberger, Roberto
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Nel 1943, la fonderia basilese Haas’sche Schriftgiesserei presentò un sobrio carattere tipografico lineare chiamato Normal Grotesk, una rielaborazione di una delle prime font più diffuse dell’epoca, l’Akzidenz-Grotesk. Questo type nonostante sia stato un carattere molto importante per l’evoluzione tipografica, con l’arrivo dell’Helvetica è andato perso. Il progetto di tesi ha come tematica il type design con particolare attenzione ai caratteri tipografici appartenenti alla famiglia dei Grotesk. L’obiettivo è quello di riportare a nuova vita una font andata in disuso, che ha fatto la storia dello stile neo-grotesk. Per poter rendere adatta alle esigenze della tipografia odierna, una font, non basta una semplice digitalizzazione ma bisogna dargli un senso. La cosa più affascinante dei revival, è quando le persone si interessano a una circostanza. Quando non lo fanno per avere un carattere sans serif e basta, ma quando dietro alle aste lineari c’è una ricerca storica, o un contesto geografico preciso. Il contesto, è senz’altro la cosa che rende contemporanea la mia font.
Data Analysis for Improving High Performance Computing Operations and Research. An Eucor Seed Money Project
Creators: name: Ciorba, Florina M.
name: Schneider, Gerhard
name: Suchodoletz, Dirk Von
name: Cavelan, Aurélien
name: Sengstag, Thierry
name: Gless, Sabine
name: Lachiche, Nicolas
name: Samet, Ahmed
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Hochleistungsrechnen
subject: 004
subject: High Performance Computing
subject: bwHPC Symposium
subject: Data analysis
subject: HPC operations and research
subject: HPC monitoring
subject: Data protection and privacy
subject: EUCOR

description: This work addresses the challenges associated with analysis of data generated by high performance computing (HPC) systems under data protection and privacy requirements. The HPC systems are the workhorse of simulation science, enabling unique insights across many disciplines (climate modeling, life sciences, weather forecast, etc.). System monitoring and analysis of monitoring data are highly significant for the efficient operation and research in performance optimization of HPC systems. Such systems generate various and large volumes of data as they operate, constituting a case of Big Data that challenges key data protection and privacy principles. This paper describes the Data Analysis for Improving High Performance Computing Operations and Research (DA-HPC-OR) project funded through the Eucor - The European Campus EVTZ via the Seed Money program1. The main goal in this project is the analysis of data collected since July 2016 on the HPC system (NEMO) at the University of Freiburg in order to improve their research and operations activities. Data collected on the sciCORE cluster in Basel will be used to validate the knowledge extracted from NEMO. This knowledge will be used to improve the monitoring, operational, and research activities of the three HPC systems (Freiburg, Basel, and Strasbourg). Data protection requires legal monitoring the relevant Swiss, German, and EU legislation. Compliance with such laws will be ensured via data de-identification and anonymization prior to analysis. We leverage the HPC, legal, and data analysis expertise of the consortium to develop solutions that can be transferred to other Eucor members at no additional legislative inquiries or overheads.
Characterization of the Livestock Production Systems and the Potential of Feed-based Interventions for Improving Livestock Productivity in Kosirai Division of Nandi County (Kenya)
Creators: name: Wafula, Sylvia
name: Kirui, Josephine
name: Lukuyu, Ben
Publisher: name: Gates Open Research
Year: 2019

description: Characterization of the Livestock Production Systems and the Potential of Feed-based Interventions for Improving Livestock Productivity in Kosirai Division of Nandi County (Kenya)
Lissamphibian-like toepads in an exceptionally preserved amphibamiform from Mazon Creek
Creators: name: Mann, Arjan
name: Gee, Bryan M.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology

description: Lissamphibian-like toepads in an exceptionally preserved amphibamiform from Mazon Creek
title: ÐÐ¸ÑÑÑÐ·Ð¸Ñ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹, Ð±Ð¾Ð·Ð¾Ð½Ð½ÑÐ¹ Ð¿Ð¸Ðº Ð¸ ÐºÑÐ¸ÑÐµÑÐ¸Ð¹ ÐÐ¾ÑÑÐµ-Ð ÐµÐ³ÐµÐ»Ñ Ñ ÑÐ¾ÑÐºÐ¸ Ð·ÑÐµÐ½Ð¸Ñ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ»ÑÑÐ°Ð¹Ð½ÑÑ Ð¼Ð°ÑÑÐ¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Diffusion of vibrations, boson peak and Ioffe-Regel crossover in the random matrix theory framework
Creators: name: ÐÐ¾Ð½ÑÑ, ÐÐ¼Ð¸ÑÑÐ¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ¼Ð¾ÑÑÐ½ÑÐµ ÑÐµÐ»Ð°
ÐÐ°ÑÑÐ¸ÑÑ (Ð¼Ð°Ñ.) ÑÐ»ÑÑÐ°Ð¹Ð½ÑÐµ
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Ð±Ð¾Ð·Ð¾Ð½Â­Ð½ÑÐ¹ Ð¿Ð¸Ðº
Ð´Ð¸ÑÑÑÐ·Ð¾Ð½Ñ
Ð°Ð½ÑÐ°Ð¼Ð±Ð»Ñ ÐÐ¸ÑÐ°ÑÑÐ°
Ioffe-Regel crossover
boson peak
diffusons
Wishart ensemble

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð² Ð½ÐµÑÐ¿Ð¾ÑÑÐ´Ð¾ÑÐµÐ½Ð½ÑÑ (Ð°Ð¼Ð¾ÑÑÂ­Ð½ÑÑ) ÑÐ¸ÑÑÐµÐ¼Ð°Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ»ÑÑÐ°Ð¹Ð½ÑÑ Ð¼Ð°ÑÑÐ¸Ñ. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ ÐºÐ¾ÑÑÐµÂ­Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ Ð°Ð½ÑÐ°Ð¼Ð±Ð»Ñ ÐÐ¸ÑÐ°ÑÑÐ° Ð²Ð¾ÑÐ¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÐºÐ¾Ð»ÐµÐ±Ð°ÑÐµÐ»ÑÐ½ÑÐµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° Ð°Ð¼Ð¾ÑÑÐ½ÑÑ ÑÐµÐ» Ð½Ð¸Ð¶Ðµ Ð¿Ð¾ÑÐ¾Ð³Ð° Ð»Ð¾ÐºÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸, ÑÐ°ÐºÐ¸Ðµ ÐºÐ°Ðº Ð±Ð¾Ð·Ð¾Ð½Ð½ÑÐ¹ Ð¿Ð¸Ðº Ð¸ ÐºÑÐ¾ÑÂ­ÑÐ¾Ð²ÐµÑ ÐÐ¾ÑÑÐµ-Ð ÐµÐ³ÐµÐ»Ñ Ð¼ÐµÐ¶Ð´Ñ ÑÐ¾Ð½Ð¾Ð½Ð°Ð¼Ð¸ Ð¸ Ð´Ð¸ÑÑÑÐ·Ð¾Ð½Ð°Ð¼Ð¸. ÐÑÐ¸ ÑÑÐ¾Ð¼ ÑÑÐ¸ÑÑÐ²Ð°ÐµÑÑÑ ÑÐ¾Ð»ÑÐºÐ¾ Ð´Ð²Ð° Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð²Ð°Ð¶Ð½ÑÑ ÑÐ¸Ð¼Ð¼ÐµÑÑÐ¸Ð¹Ð½ÑÑ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ â ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ Ð²Ð±Ð»Ð¸Ð·Ð¸ Ð¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ ÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ¸Ñ Ð¸ Ð¸Ð½Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½Ð¾ÑÑÑ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»ÑÂ­Ð½Ð¾Ð¹ ÑÐ½ÐµÑÐ³Ð¸Ð¸ Ð¾ÑÐ½Ð¾ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ ÑÐ´Ð²Ð¸Ð³Ð° ÑÐ¸ÑÑÐµÐ¼Ñ. ÐÐ¾Ð»ÑÑÐµÐ½Ð½ÑÐµ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÑÐ½Ð¸Ð²ÐµÑÂ­ÑÐ°Ð»ÑÐ½ÑÐ¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼ Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÑÑ Ð´Ð¸ÑÑÑÐ·Ð¸Ñ ÐºÐ¾Ð»ÐµÐ±Ð°Ð½Ð¸Ð¹ Ð²ÑÑÐµ ÐºÑÐ¾ÑÑÐ¾Ð²ÐµÑÐ° ÐÐ¾ÑÑÐµÂ­-Ð ÐµÐ³ÐµÐ»Ñ Ð¸ Ð±Ð¾Ð·Ð¾Ð½Ð½ÑÐ¹ Ð¿Ð¸Ðº, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÐµÑ Ð²Ð±Ð»Ð¸Ð·Ð¸ ÑÐ°ÑÑÐ¾ÑÑ ÐÐ¾ÑÑÐµ-Ð ÐµÐ³ÐµÐ»Ñ.
description: This work is dedicated to the study of vibrations in disordered (amorphous) systems by the random matrix theory. We show, that the correlated Wishart ensemble represents the general vibrational features of amorphous solids below the localization threshold, such as the boson peak and the Ioffe-Regel crossover between phonons and diffusons. It takes into account only two of the most important properties of amorphous solids: the system is near the stable equilibrium and the potential energy is invariant under the continuous translation of the system. Obtained equations describe universally the diffusion of vibrations above the Ioffe-Regel crossover and the boson peak, which arises near the Ioffe-Regel frequency.
Adversarial deep learning on digital media security and forensics
Creators: name: Wang, Yongwei
Publisher: name: University of British Columbia
Year: 2021

description: Data-driven deep learning tasks for security related applications are gaining increasing popularity and achieving impressive performances. This thesis investigates adversarial vulnerabilities of such tasks in order to establish secure and reliable machine learning systems. Adversary attacks aim to extract private data from a model of a task and misguide the model so it yields wrong results or an answer desired by the attacker. This thesis studies potential adversarial attacks that may affect an existing deep learning model of a specific task. Novel approaches that expose security vulnerabilities of four typical deep learning models in three dominant tasks (i.e., matching, classification and regression) are developed. These models include image hashing for image authentication and retrieval, fake face imagery forensic detection, image classification and single object tracking. In the first model, image hashing converts images into codes that are supposed to be non-invertible. However, we prove that this can pose image privacy concerns, and propose two deep learning de-hashing neural networks to show that we can obtain high quality images that are inverted from given image hashes. In the second model, we address fake face image detection. Fake images that can escape an adversarial attacked detector are usually degraded versions of original images. We analyze the visual degradation in such face images, and show how to design attacks that result in visually imperceptible adversarial images. For the image classification model, instead of the conventionally employed visual distortion metric, we propose the use of perceptual models as a novel measure for adversarial example generation. We then propose two sets of attack methods that can generally be incorporated into all existing gradient-based attacks. Lastly, for the single object tracking model, we propose the concept of universally and physically feasible attacks on visual object tracking in real-world settings. We develop a novel attack framework and experimentally demonstrate the feasibility of the proposed concept. The adversarial explorations and examples provided in this thesis show how existing deep learning tasks and their models could be vulnerable to malicious attacks. This would help researchers design more secure and trustworthy models for digital media security and forensics.
Z2 invariant protected bound states in topological insulators
Creators: name: Shan, Wen-Yu
name: Lu, Jie
name: Lu, Hai-Zhou
name: Shen, Shun-Qing
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present an exact solution of a modifed Dirac equation for topological insulator in the presence of a hole or vacancy to demonstrate that vacancies may induce bound states in the band gap of topological insulators. They arise due to the Z_2 classification of time-reversal invariant insulators, thus are also topologically-protected like the edge states in the quantum spin Hall effect and the surface states in three-dimensional topological insulators. Coexistence of the in-gap bound states and the edge or surface states in topological insulators suggests that imperfections may affect transport properties of topological insulators via additional bound states near the system boundary.
description: 5 pages, 3 figures, Fig. 3 is replaced