cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The cutoff phenomenon in Wasserstein distance for nonlinear stable Langevin systems with small Lévy noise
Creators: name: Barrera, Gerardo
name: Högele, Michael A.
name: Pardo, Juan Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H10, 37A25, 60G51, 15A16

description: This article establishes the cutoff phenomenon in the Wasserstein distance for systems of nonlinear ordinary differential equations with a unique coercive stable fixed point subject to general additive Markovian noise in the limit of small noise intensity. This result generalizes the results shown in Barrera, Högele, Pardo (EJP2021) in a more restrictive setting of Blumenthal-Getoor index $α>3/2$ to the formulation in Wasserstein distance, which allows to cover the case of general Lévy processes with some given moment. The main proof techniques are based on the close control of the errors in a version of the Hartman-Grobman theorem and the adaptation of the linear theory established in Barrera, Högele, Pardo (JSP2021). In particular, they rely on the precise asymptotics of the nonlinear flow and the nonstandard shift linearity property of the Wasserstein distance, which is established by the authors in (JSP2021). Main examples are the Fermi-Pasta-Ulam-Tsingou gradient flow and coercive nonlinear oscillators subject to small (and possibly degenerate) Brownian or arbitrary $α$-stable noise.
description: 24 pages
Let's build the skills ! LIBER Digital Skills WG 2018 Workshop
Creators: name: Brinken, Helene
name: Swiatek, Cecile
Publisher: name: Zenodo
Year: 2018
Subjects: liber
libraries
digital
skills
research
open science
foster

description: The FOSTER Plus Project and the Digital Skills for Library Staff & Researchers Working Group were co-organising the pre-conference Workshop “Open Science and Research Libraries: Let’s build the skills” on July 4th (09:00 – 12:00) at the 47thLIBER Conference. Open science is gaining momentum and research librarians are starting to invent new digital models, to implement new techniques and to spread a more open culture. But what digital skills do librarians still need to develop? How can we do this? And how can we use the FOSTER Plus materials and initiatives to train, advocate and practice open science? This active and collaborative workshop aims at providing the participants with tools and inviting them to think along on how to include Open Science digital skills in training programmes for librarians and researchers. During the workshop participants had the opportunity to learn more about the FOSTER Plus courses and the Open Science Training Handbook move from the collaborative reflection to the creation of an action plan contribute to and attend the showcase of examples and good practices from various countries in Europe.
Messa in servizio e strumentazione di un pendolo a impatto per prove di resilienza
Creators: name: Lanzeni, Francesco
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021

description: Il seguente progetto propone la messa in servizio e strumentazione di un pendolo a impatto per prove di resilienza o pendolo di Charpy. Il pendolo è stato recuperato dai laboratori del DACD e per poter essere utilizzato necessitava di una revisione e della messa in sicurezza. Il recupero di questa macchina risulta particolarmente importante in quanto consente di poter ampliare le capacità di misura del laboratorio, infatti, il pendolo già in possesso è limitato a 50J mentre con il pendolo di questo progetto si potrà arrivare fino a 300J. In un primo momento la macchina è stata completamente revisionata e montata e parallelamente ne è stato realizzato il modello CAD. Successivamente sono state analizzate le normative sulla sicurezza in vigore e sono stati studiati e progettati i sistemi adatti e necessari previsti dalle normative. Infine si è proceduto all'analisi delle forze scambiate tra la mazza e il provino al fine di stimare le deformazioni del punzone e così poter scegliere gli estensimetri più adatti per la misurazione delle forze scambiate.
Apprendimento collaborativo e tutoring: il Jigsaw nelle attività di matematica
Creators: name: Girardi, Flavio
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2015

description: Lo scopo del lavoro di diploma è verificare se è possibile, per un allievo debole in Matematica, esercitare attività tutoranti in un lavoro di gruppo. L’ipotesi vuole dimostrare che utilizzando una variante della struttura collaborativa Jigsaw, si possono creare le condizioni affinché un allievo possa ricoprire tale ruolo. Il metodo seguito è stato quello di creare delle attività d’Apprendimento Collaborativo che prevedevano una sequenza di lavori tali da condurre l’allievo debole a conseguire delle conoscenze che dovrà successivamente esporre ai compagni di gruppo. Per questo lavoro sono state valutate le competenze relative all’interdipendenza positiva, alla responsabilità individuale e all’interazione faccia a faccia, oltre a quelle inerenti autonomia, comprensione e ordine. I dati hanno dimostrato che le competenze messe in atto permettono di valorizzare la tesi. Le indicazioni ricavate portano a confermare la bontà del Cooperative Learning, come strumento di apprendimento di competenze disciplinari e trasversali. Relatrice: Patrizia Renzetti. Materia: Matematica.
A first step toward intelligent forming of fabric composites : adapting basic industry 4.0 concepts
Creators: name: Kazemi Nojadeh, Sorayya
Publisher: name: University of British Columbia
Year: 2020

description: Industry 4.0 is becoming a next-generation R&D area in the advanced composites manufacturing sector, to fully automate fabrication processes and increase the production quality and agility. Forming woven fabric reinforced composites on to complex 3D shapes is particularly of interest under this R&D trend, as these composites have become materials of choice in high-performance aerospace, energy, and automotive structures. Defects during the forming of long-fiber fabrics can affect the mechanical properties of the product. A vision under Industry 4.0 would be to develop AI-based tools that can predict, detect, and mitigate such defect during manufacturing. This thesis presents a prototype example of intelligent fabric composite manufacturing by conducting a series of hemisphere draping trials on a thermoplastic fiberglass/polypropylene weave, followed by the digitization of quality check. An image acquisition system was designed and integrated into a robotic arm to facilitate data collection. The quality function for each product was defined based on the height and area of formed wrinkles, as well as the sphericity and roundness of the formed hemisphere. By gathering data from around 70 samples and over 1200 images from different forming set-ups, machine learning algorithms were trained and consequently, the quality class of each product was predicted. Furthermore, to optimize the product quality, machine learning tools recommend the desired input variable of forming. Overall, a higher number of clamps and a higher number of reinforcement layers, with a higher and uniformly distributed torque magnitudes across clamps yielded the least visible wrinkles on the product. As another imaginary scenario in a smart factory, an on-line quality check tool was developed and tested. Namely, when the forming process is finished, a smart image acquisition system scans the part and checks the quality of different formed areas of the part and informs the AI tool of the ‘wrinkle’ or ‘no wrinkle’ continuously. It was found that the K-nearest neighbors (KNN) and Support Vector Machine (SVM) machine learning models could detect the wrinkles with an error rate of less than 5%, regardless of the background noise in the images such as an external object, marks, etc.
Numerical treatment of long-range Coulomb potential with Berggren bases
Creators: name: Michel, N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrodinger equation incorporating the long-range Coulomb potential takes the form of a Fredholm equation whose kernel is singular on its diagonal when represented by a basis bearing a continuum of states, such as in a Fourier-Bessel transform. Several methods have been devised to tackle this difficulty, from simply removing the infinite-range of the Coulomb potential with a screening or cut function to using discretizing schemes which take advantage of the integrable character of Coulomb kernel singularities. However, they have never been tested in the context of Berggren bases, which allow many-body nuclear wave functions to be expanded, with halo or resonant properties within a shell model framework. It is thus the object of this paper to test different discretization schemes of the Coulomb potential kernel in the framework of complex-energy nuclear physics. For that, the Berggren basis expansion of proton states pertaining to the sd-shell arising in the A ~ 20 region, being typically resonant, will be effected. Apart from standard frameworks involving a cut function or analytical integration of singularities, a new method will be presented, which replaces diagonal singularities by finite off-diagonal terms. It will be shown that this methodology surpasses in precision the two former techniques.
description: 11 pages, 2 figures, published version
Additional file 2 of Lactobacillus rhamnosus GG modifies the metabolome of pathobionts in gnotobiotic mice
Creators: name: Kim, Jinhee
name: Balasubramanian, Iyshwarya
name: Bandyopadhyay, Sheila
name: Nadler, Ian
name: Singh, Rajbir
name: Harlan, Danielle
name: Bumber, Amanda
name: He, Yuling
name: Kerkhof, Lee J.
name: Gao, Nan
name: Su, Xiaoyang
name: Ferraris, Ronaldo P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Plant Biology

description: Additional file 2: Supplementary Fig. 1. Experimental design and clinical parameters (A) Schematic diagram of experimental plan (B) Body weights as a function of age of mice before and after gavage with PTS or LTS (C) Diet consumption by mice over the course of the study. Supplementary Fig. 2. Abundance of pathobionts when coassociated with LGG. Propionibacterium (A), Lactobacillus (B), Turicibacter (C), and Staphylococcus (D) abundance was determined in the feces from PTS (n = 5) and LTS (n = 5) mice by 16S amplicon profiling. Supplementary Fig. 3. Unsupervised principal component analysis (PCA) of fecal metabolites from GF, PTS, and LTS mice. Supplementary Fig. 4. Accurate mass and MS2 spectra of unidentified metabolites. Supplementary Fig. 5. Relative mRNA expression of intestinal immunerelated genes in mucosa of proximal small intestine in GF mice associated PTS or LTS.
The asymptotic distribution of the condition number for random circulant matrices
Creators: name: Barrera, Gerardo
name: Manrique-Mirón, Paulo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 60F05, 60G70, 65F35, 60G10, 62E20, 65F22 62E20, 65F22

description: In this manuscript, we study the limiting distribution for the joint law of the largest and the smallest singular values for random circulant matrices with generating sequence given by independent and identically distributed random elements satisfying the so-called Lyapunov condition. Under an appropriated normalization, the joint law of the extremal singular values converges in distribution, as the matrix dimension tends to infinity, to an independent product of Rayleigh and Gumbel laws. The latter implies that a normalized condition number converges in distribution to a Fréchet law as the dimension of the matrix increases.
description: 23 pages. References were added
Dirac structures and Nijenhuis operators
Creators: name: Bursztyn, Henrique
name: Drummond, Thiago
name: Netto, Clarice
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: We introduce a notion of compatibility between (almost) Dirac structures and (1,1)-tensor fields extending that of Poisson-Nijenhuis structures. We study several properties of the "Dirac-Nijenhuis" structures thus obtained, including their connection with holomorphic Dirac structures, the geometry of their leaves and quotients, as well as the presence of hierarchies. We also consider their integration to Lie groupoids, which includes the integration of holomorphic Dirac structures as a special case.
description: 35 pages
Passaporto del Buongustaio
Creators: name: Liscio, Sandra
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2013

description: Nella fascia d’età dai 18 ai 26 anni, è un periodo in cui nella maggior parte dei casi i giovani studiano e non dispongono ancora un’indipendenza finanziaria. In una società investita dalla fretta, le pause pranzo finiscono sempre sulla scelta di piatti veloci. Raramente il giovane può addentrarsi in un ristorante per gustare un buon pasto. Conduce così cattive abitudini alimentari, trascurando il valore gastronomico che la regione ticinese offre. La comunicazione nella gastronomia è negli ultimi tempi protagonista delle nostre vite quotidiane. Non è solo una tendenza, ma una vera rivoluzione che identifica le nostre esperienze quotidiane, caratterizzando non più solo il mangiare insieme, ma è legata a numerosi eventi di socializzazione, programmi televisivi, editoria e ristoranti originali. Da queste considerazioni nasce la mia volontà di affrontare una tesi legata al cibo locale. Per passione personale, curiosità, ed interesse nel mio territorio natale, il Ticino, ho deciso di sviluppare una tesi e un progetto legato a questo mondo che trovo semplicemente entusiasmante e grande fonte d’ispirazione creativa. La prima fase di ricerca mi ha dato un’ampia visuale sul consumo alimentare e su come la percezione della qualità del buon cibo influisce sul gusto e sulle nostre identità. In seguito ho visualizzato le tendenze presenti attualmente in questo campo, per poi approdare su Slow Food, la risposta d’avanguardia che si contrappone alla fast life, una vita accellerata non ci permette di gustare l’essenza delle nostre esperienze. Attraverso un’approfondimento sui principi slow, ho capito come integrare la lentezza per delle scelte più consapevoli andando ad arricchire le fondamenta del mio progetto. Nella seconda fase di ricerca ho approfondito le radici del cibo locale ticinese per poi concentrarmi sulla situazione attuale. Dopo queste ricerche, ho focalizzato l’attenzione sull’ambito in cui volevo far nascere il mio progetto: una gastronomia locale comunicata attraverso un’esperienza. "Il Passaporto del Buongustaio", è un progetto che vuole promuovere una gastronomia locale fatta di prodotti sani e genuini provenienti direttamente dal territorio ticinese. Un’offerta dai mille sapori capace di coniugare tradizione e modernità. L’interesse è volto a scoprire come comunicare il valore del buon cibo locale ai giovani, per trasmettere che un’alimentazione genuina è accessibile anche a loro. La prima rassegna gastronomica ticinese rivolta esclusivamente ai giovani, la cui qualità è dettata dal patrimonio gastronomico locale.
Hybrid Beamforming for RIS-Aided Communications: Fitness Landscape Analysis and Niching Genetic Algorithm
Creators: name: Yan, Bai
name: Zhao, Qi
name: Zhang, Jin
name: Zhang, J. Andrew
name: Yao, Xin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Reconfigurable Intelligent Surface (RIS) is a revolutionizing approach to provide cost-effective yet energy-efficient communications. The transmit beamforming of the base station (BS) and discrete phase shifts of the RIS are jointly optimized to provide high quality of service. However, existing works ignore the high dependence between the large number of phase shifts and estimate them separately, consequently, easily getting trapped into local optima. To investigate the number and distribution of local optima, we conduct a fitness landscape analysis on the sum rate maximization problems. Two landscape features, the fitness distribution correlation and autocorrelation, are employed to investigate the ruggedness of landscape. The investigation results indicate that the landscape exhibits a rugged, multi-modal structure, i.e., has many local peaks, particularly in the cases with large-scale RISs. To handle the multi-modal landscape structure, we propose a novel niching genetic algorithm to solve the sum rate maximization problem. Particularly, a niching technique, nearest-better clustering, is incorporated to partition the population into several neighborhood species, thereby locating multiple local optima and enhance the global search ability. We also present a minimum species size to further improve the convergence speed. Simulation results demonstrate that our method achieves significant capacity gains compared to existing algorithms, particularly in the cases with large-scale RISs.
Channel Customization for Joint Tx-RISs-Rx Design in Hybrid mmWave Systems
Creators: name: Chen, Weicong
name: Wen, Chao-Kai
name: Li, Xiao
name: Jin, Shi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In strong line-of-sight millimeter-wave (mmWave) wireless systems, the rank-deficient channel severely hampers spatial multiplexing. To address this inherent deficiency, multiple reconfigurable-intelligent-surfaces (RISs) are introduced in this study to customize the wireless channel. Utilizing the RIS to reshape electromagnetic waves, we theoretically show that a favorable channel with an arbitrary tunable rank and a minimized truncated condition number can be established by elaborately designing the placement and reflection matrix of RISs. Different from existing works on multi-RISs, the number of elements needed for each RIS to combat the path loss and the limited phase control is also considered. On the basis of the proposed channel customization, a joint transmitter-RISs-receiver (Tx-RISs-Rx) design under a hybrid mmWave system is investigated to maximize the spectral efficiency. Using the proposed scheme, the optimal singular value decomposition-based hybrid beamforming at the Tx and Rx can be obtained without matrix decomposition for the digital and analog beamforming. The bottoms of the sub-channel mode in the water-filling algorithm, which are conventionally uncontrollable, are proven to be independently adjustable by RISs. Moreover, the transmit power required for realizing multi-stream transmission is derived. Numerical results are presented to verify our theoretical analysis and exhibit substantial gains over systems without RISs.
description: Accepted by IEEE Transactions on Wireless Communications(https://ieeexplore.ieee.org/document/10092470/)
Data Availability of 46 WHO GPW13 Outcome Indicators by Selected International Surveys in 47 low- and middle-income countries, 2015-2020
Creators: name: Zhao, Luhua
Publisher: name: figshare
Year: 2021
Subjects: subject: Health Care
subject: 111711 Health Information Systems (incl. Surveillance)
subject: FOS: Health sciences

description: The tables describe the data availability for 46 WHO GPW13 outcome indicators in 47 low- and middle-income countries through selected international population-based surveys between 2015 and 2020. The results are used for manuscript "Assessment of data gaps through population-based surveys for health-related SDGs in 47 low- and middle-Income countries".
The $W^{s,p}$-boundedness of stationary wave operators for the Schrödinger operator with inverse-square potential
Creators: name: Miao, Changxing
name: Su, Xiaoyan
name: Zheng, Jiqiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58J50, 42B20, 35J10, 33C05

description: In this paper, we investigate the $W^{s,p}$-boundedness for stationary wave operators of the Schrödinger operator with inverse-square potential $$\mathcal L_a=-Δ+\tfrac{a}{|x|^2}, \quad a\geq -\tfrac{(d-2)^2}{4},$$ in dimension $d\geq 2$. We construct the stationary wave operators in terms of integrals of Bessel functions and spherical harmonics, and prove that they are $W^{s,p}$-bounded for certain $p$ and $s$ which depend on $a$. As corollaries, we solve some open problems associated with the operator $\mathcal L_a$, which include the dispersive estimates and the local smoothing estimates in dimension $d\geq 2$. We also generalize some known results such as the uniform Sobolev inequalities, the equivalence of Sobolev norms and the Mikhlin multiplier theorem, to a larger range of indices. These results are important in the description of linear and nonlinear dynamics for dispersive equations with inverse-square potential.
description: 57 pages, 1 figure, 1 table, Improved previous result from $L^p$-boundedness to $W^{s, p}$-boundedness
Mechanism of action of two active antimicrobial peptides derived from aurein 2.2
Creators: name: Raheem, Nigare
Publisher: name: University of British Columbia
Year: 2020

description: With the increasing problem of antibiotic resistance, coupled with the limited number of newly developed antibiotics, therapeutic alternatives are urgently required. Host defense peptides (HDPs), also known as antimicrobial peptides (AMPs), are promising candidates as they have multifaceted anti-infective properties as well as a lower likelihood of causing antibiotic resistance. HDPs are ubiquitous in nature and constitute an important part of the innate immune system of almost all life forms. However, only a few peptides are in clinical trials due to issues such as systemic toxicity, proteolytic degradation and short half-life from renal/hepatic clearance. Therefore, it is important to minimize the negative impacts while improving the antimicrobial activity at the same time. Part of this thesis describes the various functions of HDPs including antibacterial, antibiofilm, immunomodulatory activities, along with the associated mechanisms of action (MOAs). The determination of antibacterial and antibiofilm MOAs of active HDPs forms the basis of this thesis, with a description of commonly used methods. From an array of aurein 2.2 analogue peptides, peptide 73 and peptide 77 were chosen for further study as they showed the highest antibacterial activity. Furthermore, both analogue peptides demonstrated better antibiofilm activity than aurein 2.2. Different biophysical techniques were used to investigate the structure – function relationship as well as the antibiofilm MOA of these analogue peptides. Specifically, the binding interaction with the alarmone nucleotide ppGpp was investigated, to determine whether the analogues function by inhibiting the bacterial stringent response. In addition, biological techniques were also employed to characterize their in vitro activity against bacteria. Finally, the antibacterial and antibiofilm activities of several HDPs are compared to attempt to assess whether these anti-infective properties are linked or independent and future experiments are proposed. Overall, the analogue peptides demonstrated higher antibacterial and antibiofilm activities compared to aurein 2.2. In addition, both have a slightly different antibiofilm mechanism of action compared to the antibiofilm peptide, IDR-1018. The results from this thesis will help to establish a foundation for future HDP design so that they can be used as therapeutics to combat antimicrobial resistance (AMR).
Semiclassical low energy scattering for one-dimensional Schrödinger operators with exponentially decaying potentials
Creators: name: Costin, Ovidiu
name: Donninger, Roland
name: Schlag, Wilhelm
name: Tanveer, Saleh
Publisher: name: arXiv
Year: 2011
Subjects: subject: Spectral Theory (math.SP)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34L25, 35J10, 81Q20 (Primary) 83C57 (Secondary)

description: We consider semiclassical Schrödinger operators on the real line of the form $$H(\hbar)=-\hbar^2 \frac{d^2}{dx^2}+V(\cdot;\hbar)$$ with $\hbar>0$ small. The potential $V$ is assumed to be smooth, positive and exponentially decaying towards infinity. We establish semiclassical global representations of Jost solutions $f_\pm(\cdot,E;\hbar)$ with error terms that are uniformly controlled for small $E$ and $\hbar$, and construct the scattering matrix as well as the semiclassical spectral measure associated to $H(\hbar)$. This is crucial in order to obtain decay bounds for the corresponding wave and Schrödinger flows. As an application we consider the wave equation on a Schwarzschild background for large angular momenta $\ell$ where the role of the small parameter $\hbar$ is played by $\ell^{-1}$. It follows from the results in this paper and \cite{DSS2}, that the decay bounds obtained in \cite{DSS1}, \cite{DS} for individual angular momenta $\ell$ can be summed to yield the sharp $t^{-3}$ decay for data without symmetry assumptions.
description: 44 pages, minor modifications in order to match the published version, will appear in Annales Henri Poincare
Fermionic transport in a homogeneous Hubbard model: Out-of-equilibrium dynamics with ultracold atoms
Creators: name: Schneider, Ulrich
name: Hackermüller, Lucia
name: Ronzheimer, Jens Philipp
name: Will, Sebastian
name: Braun, Simon
name: Best, Thorsten
name: Bloch, Immanuel
name: Demler, Eugene
name: Mandt, Stephan
name: Rasch, David
name: Rosch, Achim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Transport properties are among the defining characteristics of many important phases in condensed matter physics. In the presence of strong correlations they are difficult to predict even for model systems like the Hubbard model. In real materials they are in general obscured by additional complications including impurities, lattice defects or multi-band effects. Ultracold atoms in contrast offer the possibility to study transport and out-of-equilibrium phenomena in a clean and well-controlled environment and can therefore act as a quantum simulator for condensed matter systems. Here we studied the expansion of an initially confined fermionic quantum gas in the lowest band of a homogeneous optical lattice. While we observe ballistic transport for non-interacting atoms, even small interactions render the expansion almost bimodal with a dramatically reduced expansion velocity. The dynamics is independent of the sign of the interaction, revealing a novel, dynamic symmetry of the Hubbard model.
description: 5 pages, 4 figures +supplementary information, shortened, published version
Exploring Deep Neural Networks on Edge TPU
Creators: name: Hosseininoorbin, Seyedehfaezeh
name: Layeghy, Siamak
name: Kusy, Brano
name: Jurdak, Raja
name: Portmann, Marius
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper explores the performance of Google's Edge TPU on feed forward neural networks. We consider Edge TPU as a hardware platform and explore different architectures of deep neural network classifiers, which traditionally has been a challenge to run on resource constrained edge devices. Based on the use of a joint-time-frequency data representation, also known as spectrogram, we explore the trade-off between classification performance and the energy consumed for inference. The energy efficiency of Edge TPU is compared with that of widely-used embedded CPU ARM Cortex-A53. Our results quantify the impact of neural network architectural specifications on the Edge TPU's performance, guiding decisions on the TPU's optimal operating point, where it can provide high classification accuracy with minimal energy consumption. Also, our evaluations highlight the crossover in performance between the Edge TPU and Cortex-A53, depending on the neural network specifications. Based on our analysis, we provide a decision chart to guide decisions on platform selection based on the model parameters and context.
description: 12 pages, 16 figures
CobotAR: Interaction with Robots using Omnidirectionally Projected Image and DNN-based Gesture Recognition
Creators: name: Elena, Nazarova
name: Oleg, Sautenkov
name: Miguel, Altamirano Cabrera
name: Jonathan, Tirado
name: Valerii, Serpiva
name: Viktor, Rakhmatulin
name: Dzmitry, Tsetserukou
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Several technological solutions supported the creation of interfaces for Augmented Reality (AR) multi-user collaboration in the last years. However, these technologies require the use of wearable devices. We present CobotAR - a new AR technology to achieve the Human-Robot Interaction (HRI) by gesture recognition based on Deep Neural Network (DNN) - without an extra wearable device for the user. The system allows users to have a more intuitive experience with robotic applications using just their hands. The CobotAR system assumes the AR spatial display created by a mobile projector mounted on a 6 DoF robot. The proposed technology suggests a novel way of interaction with machines to achieve safe, intuitive, and immersive control mediated by a robotic projection system and DNN-based algorithm. We conducted the experiment with several parameters assessment during this research, which allows the users to define the positives and negatives of the new approach. The mental demand of CobotAR system is twice less than Wireless Gamepad and by 16\% less than Teach Pendant.
description: Accepted paper in SMC conference 2021, IEEE copyright
All-optical active plasmonic devices with memory and power switching functionalities based on epsilon-near-zero nonlinear metamaterials
Creators: name: Ciattoni, Alessandro
name: Rizza, Carlo
name: Palange, Elia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: All-optical active plasmonic devices are of fundamental importance for designing efficient nanophotonic circuits. We theoretically propose and numerically investigate an active plasmonic device made up of a nonlinear epsilon-near-zero metamaterial slab of thickness smaller than 100 nanometers lying on a linear epsilon-near-zero metamaterial substrate. We predict that, in free-space coupling configuration, the device, operating at low-intensity, would display plasmon mediated hysteresis behavior since the phase difference between the reflected and the incident optical waves turns out to be multi-valued and dependent on the history of the excitation process. Such an hysteresis behavior would allow to regard the proposed device as a compact memory unit whose state is accessible by measuring either the mentioned phase difference or the power, which is multi-valued as well, carried by the nonlinear plasmon wave. Since multiple plasmon powers comprise both positive and negative values, the device would also operate as a switch of the plasmon power direction at each jump along an hysteresis loop.
description: 9 pages, 4 figures
A fast algorithm for approximating the ground state energy on a quantum computer
Creators: name: Papageorgiou, Anargyros
name: Petras, Iasonas
name: Traub, Joseph F.
name: Zhang, Chi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 65D15, 81-08

description: Estimating the ground state energy of a multiparticle system with relative error $\e$ using deterministic classical algorithms has cost that grows exponentially with the number of particles. The problem depends on a number of state variables $d$ that is proportional to the number of particles and suffers from the curse of dimensionality. Quantum computers can vanquish this curse. In particular, we study a ground state eigenvalue problem and exhibit a quantum algorithm that achieves relative error $\e$ using a number of qubits $C^\prime d\log \e^{-1}$ with total cost (number of queries plus other quantum operations) $Cd\e^{-(3+δ)}$, where $δ>0$ is arbitrarily small and $C$ and $C^\prime$ are independent of $d$ and $\e$.
description: 19 pages. This vesrion will appear in Mathemetics of Computation
Magnetic susceptibility of geological materials affected by extreme thermal events
Creators: name: Ribeiro, Joana
name: Marques, Jorge Espinha
name: Sant'Ovaia, Helena
name: Flores, Deolinda
Publisher: name: Zenodo
Year: 2020

description: The determination of magnetic parameters in geological materials is a widely applied tool in environmental studies. High temperature processes such as wildfires and combustion of fossil fuels are significant environmental sources of magnetic particles. This investigation aims to determine and systematize the magnetic susceptibility (MS) of different geological materials affected by extreme thermal events and to identify environmental issues that may be associated with those materials and processes. The methodology used in this study included the determination of MS of coal mining waste materials that underwent self-burning and soils affected by wildfires. The results evidence a magnetic enhancement in mining wastes and soils affected by thermal events. The mineralogical, geochemical, and petrographic data corroborate the formation of ferromagnetic particles in these materials during combustion. These particles may be harmful to environment, ecosystems, and human health due to their atmospheric dispersion, deposition, and remobilization.
title: Ð¡ÑÐµÐ´ÑÑÐ²Ð° Ð¸ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð² Ð²ÐµÐ±-Ð¸Ð½ÑÐ¾Ð³ÑÐ°ÑÐ¸ÐºÐµ
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: Means and methods of interactive interaction in web infographics
Creators: name: ÐÐ¾ÑÐºÐ¸Ð½, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
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: 2020
Subjects: Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð°Ñ Ð¸Ð½ÑÐ¾Ð³ÑÐ°ÑÐ¸ÐºÐ°
Ð²ÐµÐ±-Ð´Ð¸Ð·Ð°Ð¹Ð½
ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
ÑÑÐµÐ´ÑÑÐ²Ð° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ
ÑÐµÐ°ÐºÑÐ¸Ð¸
Ð°Ð½Ð¸Ð¼Ð°ÑÐ¸Ñ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ°
ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ°Ð¹ÑÐ°
Ð»ÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¸Ð¹ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð²Ð¸Ð·Ð¼
Ð¿ÑÑÐµÐ²Ð¾Ð´Ð¸ÑÐµÐ»Ñ
interactive infographics
web design
comparative analysis
controls
reaction
interface animation
site development
Leningrad constructivism
travel guide

description: Ð¦ÐµÐ»ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ðµ ÑÑÐµÐ´ÑÑÐ² Ð¸ ÑÐ¿Ð¾ÑÐ¾Ð±Ð¾Ð² Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð² Ð¸Ð½ÑÐ¾Ð³ÑÐ°ÑÐ¸ÐºÐµ, Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼Ð¾Ð¹ Ð² ÑÐµÑÐ¸ Ð¸Ð½ÑÐµÑÐ½ÐµÑ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ ÐºÑÐ¸ÑÐµÑÐ¸Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¸Ð¼ÐµÑÐ¾Ð² Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¸Ð½ÑÐ¾Ð³ÑÐ°ÑÐ¸ÐºÐ¸ Ð² ÑÐµÑÐ¸ Ð¸Ð½ÑÐµÑÐ½ÐµÑ. Ð¡ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐµÐ´ÑÑÐ² Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ñ Ð¸Ð¼ ÑÐ¿Ð¾ÑÐ¾Ð±Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ ÑÐµÐ°ÐºÑÐ¸Ð¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½ ÑÐ°Ð¹Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¸Ð½ÑÐ¾Ð³ÑÐ°ÑÐ¸ÐºÐ¸ Ð½Ð° ÑÐµÐ¼Ñ ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¸Ð¹ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð²Ð¸Ð·Ð¼. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑ ÑÑÐºÐ¾ÑÐ¸ÑÑ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ»ÑÑÑÐ¸ÑÑ Ð¾Ð¿ÑÑ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»Ñ Ñ Ð¸Ð½ÑÐµÑÐ°ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¸Ð½ÑÐ¾Ð³ÑÐ°ÑÐ¸ÐºÐ¾Ð¹ Ð² Ð²ÐµÐ±-ÑÐ°Ð¹ÑÐ°Ñ. ÐÐ±Ð»Ð°ÑÑÑ Ð½Ð°Ð±Ð¸ÑÐ°ÐµÑ Ð¿Ð¾Ð¿ÑÐ»ÑÑÐ½Ð¾ÑÑÑ Ð¸ Ð²ÑÑ ÐµÑÑ Ð¼Ð°Ð»Ð¾Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð°, ÑÑÐ¾ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ¶Ð´Ð°ÐµÑ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÑ Ð¸ Ð°ÐºÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ.
description: Research is the identification of means and methods of interactive interaction in infographics used on the Internet. As a result of the work, the comparison criteria were determined, a comparative analysis of examples of interactive infographics on the Internet was carried out. For this, appropriate management and response methods are used. Based on the developed site using interactive infographics on the theme of Leningrad Constructivism. The research results will accelerate the development process, as well as improve the experience of user interaction with interactive infographics on websites. The region is gaining popularity and is still little explored.
Interfacial water molecules contribute to antibody binding to the receptor-binding domain of SARS-CoV-2 spike protein
Creators: name: Zhang, Xin
name: Wu, Ruiping
name: Liu, Qinglian
name: Zhou, Lei
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Antibodies that recognize the spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), especially the neutralizing antibodies, carry great hope in the treatment and final elimination of COVID-19. Driven by a synchronized global effort, thousands of antibodies against the spike protein have been identified during the past two years, with the structural information available at atomistic detail for hundreds of these antibodies. We developed an improved molecular mechanics/Poisson–Boltzmann surface area (MM/PBSA) method including explicitly treated interfacial water to calculate the binding free energy between representative antibodies and the receptor binding domain (RBD) domain of SARS-COV-2 spike proteins. We discovered that explicit treatment of water molecules located at the interface between RBD and antibody effectively improves the results for the WT and variants of concern (VOC) systems. Interfacial water molecules, together with surface and internal water molecules, behave drastically from bulk water and exert peculiar impacts on protein dynamics and energy, and thus warrant explicit treatment to complement implicit solvent models. Our results illustrate the importance of including interfacial water molecules to approach efficient and reliable prediction of binding free energy. Communicated by Ramaswamy H. Sarma
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð¸Ð¹ Ð¿Ð¾ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸
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 proposals for improving financial planning in the organization
Creators: name: ÐÐ°Ð»Ð¸ÐºÐ¾Ð², ÐÐ²Ð°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: 2020
Subjects: ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð°Ñ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ
Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸
Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸
Ð·Ð°Ð¿Ð°ÑÑ Ð¸ Ð·Ð°ÑÑÐ°ÑÑ
Ð·Ð°Ð´Ð¾Ð»Ð¶ÐµÐ½Ð½Ð¾ÑÑÐ¸
Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸
Ð¼Ð¾Ð½Ð¸ÑÐ¾ÑÐ¸Ð½Ð³ Ð´ÐµÐ½ÐµÐ¶Ð½ÑÑ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº
financial stability
company analysis
efficiency improvement
inventory and costs
debt
organization of company planning
monitoring of monetary characteristics

description: ÐÐÐ Â«ÐÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ñ Ð­ÐÐ Ð¢ÑÐ°Ð½ÑÐ»ÐµÐ¹ÑÐ¸Ð½Ð³Â» Ð²ÑÑÑÑÐ¿Ð°ÐµÑ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÐ¼ÑÐ¼ Ð¾Ð±ÑÐµÐºÑÐ¾Ð¼.
Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿Ð»Ð°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Â«ÐÐÐ Â«ÐÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ñ Ð­ÐÐ Ð¢ÑÐ°Ð½ÑÐ»ÐµÐ¹ÑÐ¸Ð½Ð³Â».
Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸.
ÐÐ¾ÑÐ»Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð±ÑÐ»Ð¸ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð½Ð¾Ð²ÑÐµ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸.
Ð­ÑÐ°Ð¿Ñ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ: Ð²ÑÐµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÐµ Ð²Ð°ÑÐ¸Ð°Ð½ÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð½Ð°ÑÐ¾Ð´ÑÑÑÑ Ð² Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐµ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²Ð¾Ð³Ð¾ Ð´Ð¸ÑÐµÐºÑÐ¾ÑÐ° Ð¸ Ð¶Ð´ÑÑ Ð¾ÑÐ²ÐµÑÐ° Ð´Ð»Ñ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ Ð¸Ñ Ð² ÑÐ°Ð±Ð¾ÑÑ Ð² ÐÐÐ Â«ÐÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ñ Ð­ÐÐ Ð¢ÑÐ°Ð½ÑÐ»ÐµÐ¹ÑÐ¸Ð½Ð³Â».
description: Ð¡JSC "EGO translating Company" is the object under consideration.
The purpose of the work is to improve the financial planning system in "EGO translating company" CJSC.
In the course of the work, the financial stability of the organization was analyzed.
After the analysis, new directions for improving the company's financial stability were proposed.
Stages of improvement: all the proposed options for improving the efficiency of the organization are being processed by the financial Director and are waiting for a response to implement them in the work of EGO translating.
Applications of the quadratic covariation differentiation theory: variants of the Clark-Ocone and Stroock's formulas
Creators: name: Allouba, Hassan
name: Fontes, Ramiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Classical Analysis and ODEs (math.CA)
subject: Computational Finance (q-fin.CP)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60H05, 60H10, 60H99, 60G20, 60G05

description: In a 2006 article (\cite{A1}), Allouba gave his quadratic covariation differentiation theory for Itô's integral calculus. He defined the derivative of a semimartingale with respect to a Brownian motion as the time derivative of their quadratic covariation and a generalization thereof. He then obtained a systematic differentiation theory containing a fundamental theorem of stochastic calculus relating this derivative to Itô's integral, a differential stochastic chain rule, a differential stochastic mean value theorem, and other differentiation rules. Here, we use this differentiation theory to obtain variants of the Clark-Ocone and Stroock formulas, with and without change of measure. We prove our variants of the Clark-Ocone formula under $L^{2}$-type conditions; with no Malliavin calculus, without the use of weak distributional or Radon-Nikodym type derivatives, and without the significant machinery of the Hida-Malliavin calculus. Unlike Malliavin or Hida-Malliavin calculi, the form of our variant of the Clark-Ocone formula under change of measure is as simple as it is under no change of measure, and without requiring any further differentiability conditions on the Girsanov transform integrand beyond Novikov's condition. This is due to the invariance under change of measure of the first author's derivative in \cite{A1}. The formulations and proofs are natural applications of the differentiation theory in \cite{A1} and standard Itô integral calculus. Iterating our Clark-Ocone formula, we obtain variants of Stroock's formula. We illustrate the applicability of these formulas by easily, and without Hida-Malliavin methods, obtaining the representation of the Brownian indicator $F=\mathbb{I}_{[K,\infty)}(W_{T})$, which is not standard Malliavin differentiable, and by applying them to digital options in finance. We then identify the chaos expansion of the Brownian indicator.
description: 25 pages, 3 appendices. See expanded abstract. This article gives one of several types of applications of the theory in my 2006 article (whose preprint version is arXiv:1005.4357). Minor typos fixed. To Appear in Stochastic Analysis and Applications
Fate of the non-Hermitian skin effect in many-body fermionic systems
Creators: name: Alsallom, Faisal
name: Herviou, Loïc
name: Yazyev, Oleg V.
name: Brzezińska, Marta
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We revisit the fate of the skin modes in many-body non-Hermitian fermionic systems. Contrary to the single-particle case, the many-body ground state cannot exhibit an exponential localization of all eigenstates due to the Pauli exclusion principle. However, asymmetry can still exist in the density profile, which can be quantified using the imbalance between the two halves of the system. Using the non-Hermitian Su-Schrieffer-Heeger (SSH) chain as an illustration, we show the existence of two distinct scaling regimes for the imbalance. In the first one, the imbalance grows linearly with the system size, as generically expected. In the second one, the imbalance saturates to a finite value. By combining high-precision exact diagonalization calculations and analytical arguments, we observe that the imbalance does not scale when the occupied bands can be deformed to their Hermitian limit. This suggests a direct connection between the corresponding bulk topological invariants and the skin effect in many-body systems. Importantly, this relation also holds for interacting systems.
description: 8+3 pages, 9 figures, comments are welcome
Degrees of Freedom Region of a Class of Multi-source Gaussian Relay Networks
Creators: name: Jeon, Sang-Woon
name: Chung, Sae-Young
name: Jafar, Syed A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study a layered $K$-user $M$-hop Gaussian relay network consisting of $K_m$ nodes in the $m^{\operatorname{th}}$ layer, where $M\geq2$ and $K=K_1=K_{M+1}$. We observe that the time-varying nature of wireless channels or fading can be exploited to mitigate the inter-user interference. The proposed amplify-and-forward relaying scheme exploits such channel variations and works for a wide class of channel distributions including Rayleigh fading. We show a general achievable degrees of freedom (DoF) region for this class of Gaussian relay networks. Specifically, the set of all $(d_1,..., d_K)$ such that $d_i\leq 1$ for all $i$ and $\sum_{i=1}^K d_i\leq K_Σ$ is achievable, where $d_i$ is the DoF of the $i^{\operatorname{th}}$ source--destination pair and $K_Σ$ is the maximum integer such that $K_Σ\leq \min_m\{K_m\}$ and $M/K_Σ$ is an integer. We show that surprisingly the achievable DoF region coincides with the cut-set outer bound if $M/\min_m\{K_m\}$ is an integer, thus interference-free communication is possible in terms of DoF. We further characterize an achievable DoF region assuming multi-antenna nodes and general message set, which again coincides with the cut-set outer bound for a certain class of networks.
description: 19 pages, 5 figures, published in IEEE Transactions on Information Theory