cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
LabVIEW is faster and C is economical interfacing tool for UCT automation
Creators: name: Kumar, Ankur
name: Goswami, Mayank
Publisher: name: arXiv
Year: 2022
Subjects: subject: Programming Languages (cs.PL)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: An in-house developed 2D ultrasound computerized Tomography system is fully automated. Performance analysis of instrument and software interfacing soft tools, namely the LabVIEW, MATLAB, C, and Python, is presented. The instrument interfacing algorithms, hardware control algorithms, signal processing, and analysis codes are written using above mentioned soft tool platforms. Total of eight performance indices are used to compare the ease of (a) realtime control of electromechanical assembly, (b) sensors, instruments integration, (c) synchronized data acquisition, and (d) simultaneous raw data processing. It is found that C utilizes the least processing power and performs a lower number of processes to perform the same task. In runtime analysis (data acquisition and realtime control), LabVIEW performs best, taking 365.69s in comparison to MATLAB (623.83s), Python ( 1505.54s), and C (1252.03s) to complete the experiment. Python performs better in establishing faster interfacing and minimum RAM usage. LabVIEW is recommended for its fast process execution. C is recommended for the most economical implementation. Python is recommended for complex system automation having a very large number of components involved. This article provides a methodology to select optimal soft tools for instrument automation-related aspects.
description: 15 pages, 9 figures, 2 tables, 23 references
Additional file 2 of Psychosocial factors associated with postpartum psychological distress during the Covid-19 pandemic: a cross-sectional study
Creators: name: Ostacoli, Luca
name: Cosma, Stefano
name: Bevilacqua, Federica
name: Berchialla, Paola
name: Bovetti, Marialuisa
name: Carosso, Andrea Roberto
name: Malandrone, Francesca
name: Carletto, Sara
name: Benedetto, Chiara
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary file 2. Survey developed for the study – Original language version (Italian).
Sources of Pressure in Titan's Plasma Environment
Creators: name: Achilleos, N.
name: Arridge, C. S.
name: Bertucci, C.
name: Guio, P.
name: Romanelli, N.
name: Sergis, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In order to analyze varying plasma conditions upstream of Titan, we have combined a physical model of Saturn's plasmadisk with a geometrical model of the oscillating current sheet. During modeled oscillation phases where Titan is furthest from the current sheet, the main sources of plasma pressure in the near-Titan space are the magnetic pressure and, for disturbed conditions, the hot plasma pressure. When Titan is at the center of the sheet, the main source is the dynamic pressure associated with Saturn's cold, subcorotating plasma. Total pressure at Titan (dynamic plus thermal plus magnetic) typically increases by a factor of five as the current sheet center is approached. The predicted incident plasma flow direction deviates from the orbital plane of Titan by < 10 deg. These results suggest a correlation between the location of magnetic pressure maxima and the oscillation phase of the plasmasheet.
description: 16 pages, 3 figures, submitted to Geophys. Res. Lett
Additional file 5 of Characterization of the primary antibody response to Plasmodium falciparum antigens in infants living in a malaria-endemic area
Creators: name: Tassi Yunga, Samuel
name: Siriwardhana, Chathura
name: Fouda, Genevieve G.
name: Bobbili, Naveen
name: Sama, Grace
name: Chen, John J.
name: Leke, Rose F. G.
name: Taylor, Diane Wallace
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 5: Figure S5. No correlation between Ab levels at birth and number of infections detected by PCR. Antibody levels (MFI) for each baby at the first visit (mean 9 ± 2 days) were plotted against the number of times the baby was PCR-positive during the first year of life. No association between Ab levels at birth and number of PCR-detected infections was seen.
Box2Mask: Weakly Supervised 3D Semantic Instance Segmentation Using Bounding Boxes
Creators: name: Chibane, Julian
name: Engelmann, Francis
name: Tran, Tuan Anh
name: Pons-Moll, Gerard
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Current 3D segmentation methods heavily rely on large-scale point-cloud datasets, which are notoriously laborious to annotate. Few attempts have been made to circumvent the need for dense per-point annotations. In this work, we look at weakly-supervised 3D semantic instance segmentation. The key idea is to leverage 3D bounding box labels which are easier and faster to annotate. Indeed, we show that it is possible to train dense segmentation models using only bounding box labels. At the core of our method, \name{}, lies a deep model, inspired by classical Hough voting, that directly votes for bounding box parameters, and a clustering method specifically tailored to bounding box votes. This goes beyond commonly used center votes, which would not fully exploit the bounding box annotations. On ScanNet test, our weakly supervised model attains leading performance among other weakly supervised approaches (+18 mAP@50). Remarkably, it also achieves 97% of the mAP@50 score of current fully supervised models. To further illustrate the practicality of our work, we train Box2Mask on the recently released ARKitScenes dataset which is annotated with 3D bounding boxes only, and show, for the first time, compelling 3D instance segmentation masks.
description: Project page: https://virtualhumans.mpi-inf.mpg.de/box2mask/
Additional file 7 of Characterization of the primary antibody response to Plasmodium falciparum antigens in infants living in a malaria-endemic area
Creators: name: Tassi Yunga, Samuel
name: Siriwardhana, Chathura
name: Fouda, Genevieve G.
name: Bobbili, Naveen
name: Sama, Grace
name: Chen, John J.
name: Leke, Rose F. G.
name: Taylor, Diane Wallace
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 7: Table S1. Recombinant and synthetic antigens used in antibody assays.
Structure of a Maximal Total Independent Set
Creators: name: Stanton, Lewis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69, 05C70

description: Let $G$ be a simple, connected and finite graph with order $n$. Denote the independence number, edge independence number and total independence number by $α(G), α'(G)$ and $α"(G)$ respectively. This paper establishes a relation between $α"(G)$ with $α(G)$, $α'(G)$ and $n$. It also describes the possible structures of a total independent set of a given size.
description: 10 pages, Accepted version in Rose-Hulman Undergraduate journal
A bubbling bolt
Creators: name: Bossard, Guillaume
name: Katmadas, Stefanos
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new solvable system, solving the equations of five-dimensional ungauged N=1 supergravity coupled to vector multiplets, that allows for non-extremal solutions and reduces to a known system when restricted to the floating brane Ansatz. A two-centre globally hyperbolic smooth geometry is obtained as a solution to this system, describing a bubble linking a Gibbons--Hawking centre to a charged bolt. However this solution turns out to violate the BPS bound, and we show that its generalisation to an arbitrary number of Gibbons--Hawking centres never admits a spin structure.
description: 36 pages
Tri-Scalar CFT and Holographic Bi-Fishchain Model
Creators: name: Huang, Wung-Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Bi-scalar CFT from $γ$ deformed $\cal N$=4 SYM describes the fishnet theory which is integrable in the planar limit. The holographic dual of the planar model is the fishchain model. The derivation of the weak-strong duality from the first principle was presented in a recent paper (The Holographic Fishchain arXiv:1903.10508). In this note we extend the investigation to the tri-scalar CFT which raises from the large twist limit of ABJM theory. We show that it becomes tri-scalar fishnet theory in planar limit and the dual theory is the holographic bi-fishchain model.
description: Add several comments and many references
Additional file 4 of Physiologic responses to a staircase lung volume optimization maneuver in pediatric high-frequency oscillatory ventilation
Creators: name: Jager, Pauline De
name: Burgerhof, Johannes G. M.
name: Koopman, Alette A.
name: Markhorst, Dick G.
name: Kneyber, Martin C. J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 4: Table S2. Summary of changes in PaCO2 and pH.
An alternative approach to equivariant stable homotopy theory
Creators: name: Hovey, Mark
name: White, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55P91

description: Building on the work of Martin Stolz, we develop the basics of equivariant stable homotopy theory starting from the simple idea that a G- spectrum should just be a spectrum with an action of G on it, in contrast to the usual approach in which the definition of a G-spectrum depends on a choice of universe.
description: 14 pages
Topological magnons on the triangular kagome lattice
Creators: name: Zhang, Meng-Han
name: Yao, Dao-Xin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present the topology of magnons on the triangular kagome lattice (TKL) by calculating its Berry curvature, Chern number and edge states. In addition to the ferromagnetic state, the TKL hosts ferrimagnetic ground state as its two sublattices can couple with each other either ferromagnetically or antiferromagnetically. Using Holstein-Primakoff (HP) boson theory and Green's function approach, we find that the TKL has a rich topological band structure with added high Chern numbers compared with the kagome and honeycomb lattices. The magnon edge current allows a convenient calculation of thermal Hall coefficients and the orbital angular momentum gives correlation to the Einstein-de Haas effect. We apply the calculations to the TKL and derive the topological gyromagnetic ratio showing a nonzero Einstein-de Haas effect in the zero temperature limit. Our results render the TKL as a potential platform for quantum magnonics applications including high-precision mechanical sensors and information transmission.
Effective Field Theory of Relativistic Quantum Hall Systems
Creators: name: Golkar, Siavash
name: Roberts, Matthew M.
name: Son, Dam Thanh
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the observation of the fractional quantum Hall effect in graphene, we consider the effective field theory of relativistic quantum Hall states. We find that, beside the Chern-Simons term, the effective action also contains a term of topological nature, which couples the electromagnetic field with a topologically conserved current of $2+1$ dimensional relativistic fluid. In contrast to the Chern-Simons term, the new term involves the spacetime metric in a nontrivial way. We extract the predictions of the effective theory for linear electromagnetic and gravitational responses. For fractional quantum Hall states at the zeroth Landau level, additional holomorphic constraints allow one to express the results in terms of two dimensionless constants of topological nature.
description: 4 pages
A novel interactive OBE approach in SCM pedagogy using beer game simulation theory
Creators: name: Bariran, S. E. S.
name: Sahari, K. S. M.
name: Yunus, B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The primary challenge in SCM pedagogy is the learners interaction with the dynamic nature of supply chain transactions. Once achieved, it is also required to evaluate learners learning experience based on their performance. In this paper, a combination of outcome-based education (OBE) and simulation-based education is proposed focusing on beer game theory. The analysis is based on 336 runs of beer game simulation within a target group of 56 participants divided into 14 subgroups (SG1-SG14).The purpose of the study is mainly to investigate the effect of mutual interactions on students learning process using supply chain total cost and ordering fluctuations as critical measurement criteria.
description: Special Issue: International Conference on Teaching and Learning in Education, 2013
Additional file 6 of Characterization of the primary antibody response to Plasmodium falciparum antigens in infants living in a malaria-endemic area
Creators: name: Tassi Yunga, Samuel
name: Siriwardhana, Chathura
name: Fouda, Genevieve G.
name: Bobbili, Naveen
name: Sama, Grace
name: Chen, John J.
name: Leke, Rose F. G.
name: Taylor, Diane Wallace
Publisher: name: figshare
Year: 2022
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 6: Figure S6. No correlation between Ab levels at birth and number of infections detected by microscopy. Antibody levels (MFI) at the first visit (mean 9 ± 2 days) were plotted against the number of times each baby was slide-positive during the first year of life. No association between high Ab levels at birth and number of slide-positive infections was found.
The Frobenius properad is Koszul
Creators: name: Campos, Ricardo
name: Merkulov, Sergei
name: Willwacher, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We show Koszulness of the prop governing involutive Lie bialgebras and also of the props governing non-unital and unital-counital Frobenius algebras, solving a long-standing problem. This gives us minimal models for their deformation complexes, and for deformation complexes of their algebras which are discussed in detail. Using an operad of graph complexes we prove, with the help of an earlier result of one of the authors, that there is a highly non-trivial action of the Grothendieck-Teichmüller group $GRT_1$ on (completed versions of) the minimal models of the properads governing Lie bialgebras and involutive Lie bialgebras by automorphisms. As a corollary one obtains a large class of universal deformations of any (involutive) Lie bialgebra and any Frobenius algebra, parameterized by elements of the Grothendieck-Teichmüller Lie algebra. We also prove that, for any given homotopy involutive Lie bialgebra structure in a vector space, there is an associated homotopy Batalin-Vilkovisky algebra structure on the associated Chevalley-Eilenberg complex.
The Art of War: Beyond Memory-one Strategies in Population Games
Creators: name: Lee, Christopher
name: Harper, Marc
name: Fryer, Dashiell
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We define a new strategy for population games based on techniques from machine learning and statistical inference that is essentially uninvadable and can successfully invade (significantly more likely than a neutral mutant) essentially all known memory-one strategies for the prisoner's dilemma and other population games, including ALLC (always cooperate), ALLD (always defect), tit-for-tat (TFT), win-stay-lose-shift (WSLS), and zero determinant (ZD) strategies, including extortionate and generous strategies. We will refer to a player using this strategy as an "information player" and the specific implementation as $IP_0$. Such players use the history of play to identify opponent's strategies and respond accordingly, and naturally learn to cooperate with each other.
description: 16 pages, 4 figures
Expression and Function of Heat Shock Protein 90 in the Central Nervous System of the Desert Locust, Schistocerca gregaria
Creators: name: O'Connor, Brendan
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: In this thesis, I investigated the expression and function of the molecular chaperone heat shock protein 90 (HSP90) in the central nervous system (CNS) of the desert locust, Schistocerca gregaria. In Chapter 1, I reviewed the structure, function and CNS expression of HSP90, and argued that its role as a 'meta-regulator' of complex biological pathways and its ability to stabilise behavioural and morphological phenotypes suggests it could adaptively stabilise activity in the CNS. In Chapter 2, I exploited unique properties of the locust hind leg motor control system to gain experimental access to a monosynaptic glutamatergic synapse. The stability of synaptic transmission – measured indirectly with extracellular muscle recordings – was unaffected by pharmacological inhibition of HSP90. In seeking to verify drug penetration into the locust CNS, subsequent intracellular electrophysiological experiments using drugs with reported effects at the synapse failed to replicate previously published findings. In Chapter 3, an extensive and computationally-intensive simulation-based Bayesian power analysis concluded that further intracellular experiments would not be sufficiently powered to robustly detect likely experimental outcomes with the resources available following the COVID-19 pandemic. In Chapter 4, I demonstrated for the first time in any invertebrate that constitutive expression of HSP90 (at the protein level) was greater in the CNS than in non-neural tissue. I attempted to investigate where HSP90 was expressed in the CNS, but none of the five selected anti-HSP90 antibodies passed all validation criteria required for their use in immunofluorescence microscopy. In Chapter 5, I contextualised the major findings of my thesis and suggest promising avenues for future experiments to explore. The rigorous experiments and power analysis presented in this thesis make distinct and original contributions in the form of (a) independent replication of published work and (b) broad methodological issues that have far-reaching implications for the meaningful design and interpretation of experiments.
Geodesic Motions near an improved Schwarzschild black hole
Creators: name: Mandal, Surajit
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we studied the geodesics of timelike and null like particles near an improved Schwarzschild black hole. The lapse function has been plotted and was found that only one horizon is possible. The equation of motion and effective potential of test particle have been calculated. This equation has an importance in studying the radial free fall and in studying the stability of radial orbits (trajectories). The energy and angular momentum have also been calculated to analysis the cicrular motion and stability of circular orbits. Moreover, Innermost stable circular orbit radius has determined. To get a deeper insight of the nature of these trajectories, we have studied the timelike and null geodesics with the help of the dynamical systems approach. This analysis help us to determine the stability as well as fixed point of phase space trajectories.
description: 18 pages, 6 figures, Accepted for publication in General Relativity and Gravitation
Canopy mortality has doubled in Europe’s temperate forests over the last three decades
Creators: name: Senf, Cornelius
name: Pflugmacher, Dirk
name: Zhiqiang, Yang
name: Sebald, Julius
name: Knorn, Jan
name: Neumann, Mathias
name: Hostert, Patrick
name: Seidl, Rupert
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: 333.7 Natürliche Resourcen, Energie und Umwelt

description: Mortality is a key indicator of forest health, and increasing mortality can serve as bellwether for the impacts of global change on forest ecosystems. Here we analyze trends in forest canopy mortality between 1984 and 2016 over more than 30 Mill. ha of temperate forests in Europe, based on a unique dataset of 24,000 visually interpreted spectral trajectories from the Landsat archive. On average, 0.79% of the forest area was affected by natural or human-induced mortality annually. Canopy mortality increased by +2.40% year–1, doubling the forest area affected by mortality since 1984. Areas experiencing low-severity mortality increased more strongly than areas affected by stand-replacing mortality events. Changes in climate and land-use are likely causes of large-scale forest mortality increase. Our findings reveal profound changes in recent forest dynamics with important implications for carbon storage and biodiversity conservation, highlighting the importance of improved monitoring of forest mortality.
Quantum bidding in Bridge
Creators: name: Muhammad, S.
name: Tavakoli, A.
name: Kurant, M.
name: Pawlowski, M.
name: Zukowski, M.
name: Bourennane, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum methods allow to reduce communication complexity of some computational tasks, with several separated partners, beyond classical constraints. Nevertheless, experimental demonstrations of this fact are thus far limited to some abstract problems, far away from real-life tasks. We show here, and demonstrate experimentally, that the power of reduction of communication complexity can be harnessed to gain advantage in famous, immensely popular, card game - Bridge. The essence of a winning strategy in Bridge is efficient communication between the partners. The rules of the game allow only specific form of communication, of a very low complexity (effectively one has a strong limitations on number of exchanged bits). Surprisingly, our quantum technique is not violating the existing rules of the game (as there is no increase in information flow). We show that our quantum Bridge auction corresponds to a biased nonlocal Clauser-Horne-Shimony-Holt (CHSH) game, which is equivalent to a $2\to 1$ quantum random access code. Thus our experiment is also a realization of such protocols. However, this correspondence is not full which enables the Bridge players to have efficient strategies regardless of the quality of their detectors.
description: 10 pages, 6 figures
Polynomial-time algorithms for continuous metrics on atomic clouds of unordered points
Creators: name: Kurlin, Vitaliy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: 51F20, 51N20, 51K05

description: The most fundamental model of a molecule is a cloud of unordered atoms, even without chemical bonds that can depend on thresholds for distances and angles. The strongest equivalence between clouds of atoms is rigid motion, which is a composition of translations and rotations. The existing datasets of experimental and simulated molecules require a continuous quantification of similarity in terms of a distance metric. While clouds of m ordered points were continuously classified by Lagrange's quadratic forms (distance matrices or Gram matrices), their extensions to m unordered points are impractical due to the exponential number of m! permutations. We propose new metrics that are continuous in general position and are computable in a polynomial time in the number m of unordered points in any Euclidean space of a fixed dimension n.
description: 30 pages, 2 figures. The paper was published (with grayscale images) in the journal MATCH Communications in Mathematical and in Computer Chemistry, v.91 (2024), p.79-108, https://doi.org/10.46793/match.91-1.079K. This version includes color images. The latest file is at http://kurlin.org/projects/cloud-isometry-spaces/metrics-atomic-clouds.pdf
title: Математическое моделирование и разработка системы управления процессами ректификаци смесей в производстве этилового спирта
Creators: name: Авазов, Ю.Ш.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Приведено математическое описание процесса ректификации многокомпонентных смесей и получены динамические модели работы отдельных секций типовой ректификационной колонны и на этой основе выполнен структурно-параметрический синтез инвариантной системы управления. Обоснован обобщенный алгоритм управления процессом разделением многокомпонентных смесей. Изложены методика определения функции принадлежности методом попарных сравнений и получены модели управления стохастическим процессом ректификации многокомпонентных смесей на основе нечеткой логики.
Level anti-crossings of a nitrogen-vacancy center in diamond: decoherence-free subspaces and 3D sensors of microwave magnetic fields
Creators: name: Rao, K Rama Koteswara
name: Suter, Dieter
Publisher: name: Technische Universität Dortmund
Year: 2020
Subjects: subject: NV center
subject: Decoherence-free subspaces
subject: ZEFOZ shift
subject: Level anti-crossings
subject: Coherence times
subject: 530

description: Nitrogen-vacancy (NV) centers in diamond have become an important tool for quantumtechnologies. All of these applications rely on long coherence times of electron and nuclear spinsassociated with these centers. Here, we study the energy level anti-crossings of an NV center indiamond coupled to a first-shell13C nuclear spin in a small static magnetic field. These levelanti-crossings (LACs) occur for specific orientations of the static magnetic field due to the strongnon-secular components of the Hamiltonian. At these orientations we observe decoherence-freesubspaces, where the electron spin coherence times (T∗2) are 5–7 times longer than those at otherorientations. Another interesting property at these LACs is that individual transition amplitudesare dominated by a single component of the magnetic dipole moment. Accordingly, this can beused for vector detection of microwave magnetic fields with a single NV center. This is particularlyimportant to precisely control the center using numerical optimal control techniques.
description: New journal of physics;Vol. 22. 2020, Issue 10, p. 103065-1-103065-9
title: Регулярные алгоритмы локально-оптимальной стабилизации объектов управления при неполной информации
Creators: name: Мамиров, У.Ф.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Рассматриваются вопросы построения устойчивых алгоритмов локально-оптимальной стабилизации управляемых динамических объектов в условиях неполных наблюдений и не измеряемых возмущений. Приводятся алгоритмы формирования локально-оптимальной стабилизации объектов управления на основе концепций псевдообращения матриц. Для устойчивого псевдообращения матриц используется метод регуляризации Тихонова для экстремальных задач с выбором параметра регуляризации по обобщенному принципу невязки. При определении искомого решения используется процедура приведения регуляризованной системы к набору трехдиагональных систем линейных алгебраических уравнений, которые решаются методом прогонки.
title: Алгоритмы регулярного синтеза адаптивного наблюдателя для линейной стационарной системы
Creators: name: Расулев, А.Х.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Рассматриваются вопросы формирования алгоритмов регулярного синтеза адаптивного наблюдателя для линейной стационарной системы. Приводятся регуляризованные алгоритмы, позволяющие осуществлять идентификацию параметров и вектора состояния управляемого объекта. В качестве базовой регулярной схемы используются ретроспективные и итерационные вычислительные алгоритмы упрощенной регуляризации. Приведенные выражения позволяют реализовать устойчивую процедуру оценивания неизвестных параметров и состояния линейной стационарной системы в процессе ее нормального функционирования.
title: Алгоритмы адаптивной идентификации параметров стохастических объектов управления
Creators: name: Юсупов, Ё.А.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Приводятся алгоритмы адаптивной идентификации параметров стохастических объектов управления. Задача идентификации управляемого объекта сведена к задаче оценивания параметров регрессионной модели на основе обобщенного метода наименьших квадратов. Приведены алгоритмы устойчивого оценивания параметров объекта на основе устойчивых рекуррентных процедур. Приведенные алгоритмы позволяют эффективно вычислять искомые параметры идентифицируемого объекта в условиях коррелированности во времени шумов, действующих на объект.
Möbius Polynomials
Creators: name: Murray, Will
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We introduce the Möbius polynomial $ M_n(x) = \sum_{d|n} μ\left( \frac nd \right) x^d $, which gives the number of aperiodic bracelets of length $n$ with $x$ possible types of gems, and therefore satisfies $M_n(x) \equiv 0$ (mod $n$) for all $x \in \mathbb Z$. We derive some key properties, analyze graphs in the complex plane, and then apply Möbius polynomials combinatorially to juggling patterns, irreducible polynomials over finite fields, and Euler's totient theorem.
description: 10 pages, 2 figures
Variation of carrier density in semimetals via short-range correlation: A case study with nickelate NdNiO$_2$
Creators: name: Jiang, Ruoshi
name: Lang, Zi-Jian
name: Berlijn, Tom
name: Ku, Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Carrier density is one of the key controlling factors of material properties, particularly in controlling the essential correlations in strongly correlated materials. Typically, carrier density is externally tuned by doping or gating and remains fixed below room temperature. Strangely, the carrier density in correlated semimetals is often found to vary sensitively against weak external controls such as temperature, magnetic field, and pressure. Here, we develop a realistic simulation scheme that incorporates interatomic noncollinear magnetic correlation without a long-range order. Using the recently discovered nickelate superconductor as an example, we demonstrate a rather generic low-energy mechanism that in semimetals short-range correlation can reversely modulate the carrier density as well. Such a mutual influence between correlation and carrier density provides an extra ingredient for sensitive bifurcating behavior. This special feature of correlated semimetals explains their versatile carrier density at low energy and opens up new possibilities of functionalizing these materials.
Quantum phases of hard-core dipolar bosons in coupled 1D optical lattices
Creators: name: Safavi-Naini, A.
name: Capogrosso-Sansone, B.
name: Kuklov, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Hard-core dipolar bosons trapped in a parallel stack of N>=2 1D optical lattices (tubes) can develop several phases made of composites of particles from different tubes: superfluids, supercounterfluids and insulators as well as mixtures of those. Bosonization analysis shows that these phases are threshold-less with respect to the dipolar interaction, with the key "control knob" being filling factors in each tube, provided the inter-tube tunneling is suppressed. The effective ab-initio quantum Monte Carlo algorithm capturing these phases is introduced and some results are presented.
Towards rigorous micro-macro transitions: The microscopic oscillator motion
Creators: name: Dreyer, Wolfgang
name: Herrmann, Michael
Publisher: name: Weierstrass Institute
Year: 2002
Subjects: subject: Conservation laws
subject: Many particle systems
subject: Micro-macro transitions
subject: Multiscale problems
subject: Young measures
subject: 70F45
subject: 82C22
subject: 35L65

description: The atomic chain whose dynamics evolve according to Newton's equations of motion serves as a simple microscopic many-particle system for an analysis of the macroscopic or thermodynamic limit. If the interaction potential has a sufficient strong repulsive part, it is possible to create a special microscopic motion, that we call oscillator motion, which is simpler as the classical thermal motion. However, also the oscillator motion leads to temperature, a Gibbs equation and an entropy. In the current paper we derive the thermodynamics for the oscillator motion without the subtle replacement of the many-particle sytem by a single equation of motion as it is done in [4]. Furthermore we introduce a different mathematical setting for micro-macro transitions as in [4], which is better suited for a rigorous treatment.
Investigating the roles of HDAC1/2 in regulating the embryonic stem cell acetylome
Creators: name: AlShehri, Ahmad M. J.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: Histone deacetylase 1 (HDAC1) and HDAC2 are critical catalytic subunits of six distinct coregulator complexes (SIN3, NuRD, CoREST, MiDAC, MIER, and RERE) that help regulate histone acetylation levels across the genome. One of the major unanswered questions in the HDAC field is why the cell needs such an array of HDAC-containing complexes? To try to understand how these different molecular machines are assembled and what they all do, we have been using the structure of HDAC1 bound to MTA1 (part of the NuRD complex) to design mutations (Y48E, L161E/Y166E, Y333D/Y336D, E63R, K126E, and K144E) on the surface of HDAC1 that discriminate binding to the different complexes. We have identified two HDAC1 mutants, Y48E, which binds only to SIN3 and E63R which interacts with SIN3 and CoREST complexes but not with NuRD or MiDAC. Surprisingly, retention of SIN3 binding alone is sufficient for cells to retain their viability, demonstrating the essential nature of this complex. Both Y48E and E63R cause differential gene expression and a gradual loss of pluripotency in embryonic stem cells. As a result, we developed new tools and the first-of-their-kind mutations that will help in distinguishing the functions of these various chromatin-modifying machinery. The MOZ/KAT6B complex provides an image of a chromatin-binding assembly that can be modified in terms of its activity and recruitment to particular genomic areas through post-translational modifications of histones. Here we validated the acetylation of two members of the KAT6B complex, KAT6B and BRPF1. We have demonstrated that BRPF1 alone is not acetylated, and its expression level is low. But when we co-transfected it with KAT6B, we were able to detect an acetylation signal. Moreover, the expression level increased with the presence of KAT6B, suggesting that KAT6B does not only acetylate BRPF1, it might also stabilise it. Additionally, KAT6B’s autoacetylation behaviour prevented us from switching off the acetylation signal in both targets.
title: Методы оптимизации обработки данных на основе нечеткой корректировки элементов временных рядов и переменных моделей идентификации
Creators: name: Жуманов, И.И.
name: Бекмуродов, З.Т.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Сформулирована проблема оптимальной идентификации и обработки случайных временных рядов (СВР) на основе использования свойства статистических, динамических, нечетких моделей. Предложен метод качественной идентификации СВР, включающий алгоритмы нечетких уравнений, логических выводов, учета воздействий факторов внешней среды и нестационарности процессов. Разработан обобщенный алгоритм идентификации СВР с регулированием и корректировкой значений переменных на основе правил нечеткой логики, способов поиска экстремумов по t -норм и s -норм. Спроектированы инструменты для оптимальной обработки данных путем определения адекватной модели; параметрической и структурной идентификации объектов; оптимизации поиска; обучения моделей; идентификации зависимости «входов и выход»; формирования и использования базы знаний, а также наборов нечетких правил, лингвистических переменных, функций принадлежностей и алгоритмов регулирования значений переменных. Разработаны методы нечеткой коррекции искаженной информации путем контроля погрешности идентификации СВР, а также реализован программный комплекс, обеспечивающий высокой точности обработки данных со значительно меньшими затратами.
A small, infinitely-ended 2-knot group
Creators: name: Budney, Ryan
name: Hillman, Jonathan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57Q45

description: We show that a 2-knot group discovered in the course of a census of 4-manifolds with small triangulations is an HNN extension with finite base and proper associated subgroups, and has the smallest base among such knot groups.
description: 10 pages
title: Информационно-математическая модель диагностирования эксплуатационного режима тягового электродвигателя
Creators: name: Якубов, М.С.
name: Файзуллаев, Ж.С.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Составлена информационно-математическая модель диагностирования эксплуатационного режима тягового электродвигателя на основе анализа спектров амплитудно модулированного тока статора, обусловленного неисправностями его элементов и узлов. Определены параметры оптимального фильтра по критерию максимума отношения сигнал/шум тока статора, по которому можно идентифицировать техническое состояние объекта. Показано, что диагностика, обработка и анализ результатов технического состояния тягового электродвигателя на основе анализа спектральных составляющих тока статора позволяют по совокупности измеряемых параметров повысит достоверность принимаемого технического решения о поддержании эксплуатационной надежности и изучить эволюцию технического состояния, а также уменьшить вероятность необоснованного вывода из эксплуатации.
title: Multicriterial optimization of information granules in fuzzy If-Then rules
Creators: name: Aliev, R.A.
name: Huseynov, O.H.
name: Adilova, Nigar E.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2018

description: Investigation of trade-off between characteristics of information granules for construction of fuzzy rule-based model is challenging scientific problem. Main optimization requirement in information granules estimation (antecedent and consequent parts of fuzzy rules) are cardinality which characterizes justifiability (reliability) of information granules in light of the available experimental data and specificity that characterizes semantics of information granules. This paper is devoted to a multicriterial approach to solving of optimization problem of construction of interval and fuzzy information granules. Validity of the proposed approach is proved by numerical examples.
The Parallax of W43: a Massive Star Forming Complex near the Galactic Bar
Creators: name: Zhang, B.
name: Moscadelli, L.
name: Sato, M.
name: Reid, M. J.
name: Menten, K. M.
name: Zheng, X. W.
name: Brunthaler, A.
name: Dame, T. M.
name: Xu, Y.
name: Immer, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report trigonometric parallax measurements of masers in the massive star forming complex W43 from VLBA observations as part of the BeSSeL Survey. Based on measurements of three 12 GHz methanol maser sources (G029.86-00.04, G029.95-00.01 and G031.28+00.06) and one 22 GHz water maser source (G031.58+00.07) toward W43, we derived a distance of $5.49^{+0.39}_{-0.34}$ kpc to W43. By associating the masers with CO molecular clouds, and associating the clouds kinematically with CO longitude-velocity spiral features, we assign W43 to the Scutum spiral arm, close to the near end of the Galactic bar. The peculiar motion of W43 is about 20 km/s toward the Galactic Center and is very likely induced by the gravitational attraction of the bar.
description: 23 pages, 16 figures, accepted for publication in ApJ
Travelling waves and heteroclinic networks in models of spatially-extended cyclic competition
Creators: name: Dijkema, David C Groothuizen
name: Postlethwaite, Claire M
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C29

description: Dynamical systems containing heteroclinic cycles and networks can be invoked as models of intransitive competition between three or more species. When populations are assumed to be well-mixed, a system of ordinary differential equations (ODEs) describes the interaction model. Spatially extending these equations with diffusion terms creates a system of partial differential equations which captures both the spatial distribution and mobility of species. In one spatial dimension, travelling wave solutions can be observed, which correspond to periodic orbits in ODEs that describe the system in a steady-state travelling frame of reference. These new ODEs also contain a heteroclinic structure. For three species in cyclic competition, the topology of the heteroclinic cycle in the well-mixed model is preserved in the steady-state travelling frame of reference. We demonstrate that with four species, the heteroclinic cycle which exists in the well-mixed system becomes a heteroclinic network in the travelling frame of reference, with additional heteroclinic orbits connecting equilibria not connected in the original cycle. We find new types of travelling waves which are created in symmetry-breaking bifurcations and destroyed in an orbit flip bifurcation with a cycle between only two species. These new cycles explain the existence of "defensive alliances" observed in previous numerical experiments. We further describe the structure of the heteroclitic network for any number of species, and we conjecture how these results may generalise to systems of any arbitrary number of species in cyclic competition.
The fate of U(1)'s at strong coupling in F-theory
Creators: name: Braun, Andreas P.
name: Collinucci, Andres
name: Valandro, Roberto
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: U(1) gauge symmetries in F-theory are expected to manifest themselves as codimension three singularities of Calabi-Yau fourfolds. However, some of these are known to become massive at strong coupling via the Stückelberg mechanism. In this note, we propose a geometric picture for detecting all U(1)'s, and determining which ones are massive and which ones are massless. We find that massive gauge symmetries show up as codimension three singularities that only admit small, non-Kähler, resolutions. Our proposal passes several highly non-trivial tests, including a case with a non-diagonal mass matrix.
description: 18 pages
An Exact Chiral Amorphous Spin Liquid
Creators: name: Cassella, Gino
name: D'Ornellas, Peru
name: Hodson, Thomas
name: Natori, Willian M. H.
name: Knolle, Johannes
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological insulator phases of non-interacting particles have been generalized from periodic crystals to amorphous lattices, which raises the question whether topologically ordered quantum many-body phases may similarly exist in amorphous systems? Here we construct a soluble chiral amorphous quantum spin liquid by extending the Kitaev honeycomb model to random lattices with fixed coordination number three. The model retains its exact solubility but the presence of plaquettes with an odd number of sides leads to a spontaneous breaking of time reversal symmetry. We unearth a rich phase diagram displaying Abelian as well as a non-Abelian quantum spin liquid phases with a remarkably simple ground state flux pattern. Furthermore, we show that the system undergoes a finite-temperature phase transition to a conducting thermal metal state and discuss possible experimental realisations.
description: 5 pages, 3 figures
Global phase and frequency comb structures in nonlinear Compton and Thomson scattering
Creators: name: Krajewska, K.
name: Twardy, M.
name: Kamiński, J. Z.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The Compton and Thomson radiation spectra, generated in collisions of an electron beam with a powerful laser beam, are studied in the framework of quantum and classical electrodynamics, respectively. We show that there are frequency regimes where both radiation spectra are nearly identical, which for Compton scattering relates to the process which preserves the electron spin. Although the radiation spectra are nearly identical, the corresponding probability amplitudes exhibit different global phases. This has pronounced consequences, which we demonstrate by investigating temporal power distributions in both cases. We show that, contrary to Thomson scattering, it is not always possible to synthesize short laser pulses from Compton radiation. This happens when the global phase of the Compton amplitude varies in a nonlinear way with the frequency of emitted photons. We also demonstrate that while the Compton process driven by a non-chirped laser pulse can generate chirped bursts of radiation, this is not the case for the Thomson process. In principle, both processes can lead to a generation of coherent frequency combs when single or multiple driving laser pulses collide with electrons. Once we synthesize these combs into short bursts of radiation, we can control them, for instance, by changing the time delay between the driving pulses.
description: 18 pages, 15 figures
Loop space decompositions of highly symmetric spaces with applications to polyhedral products
Creators: name: Stanton, Lewis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55P15, 55P35, 05C90

description: We generalise the fold map for the wedge sum and use this to give a loop space decomposition of topological spaces with a high degree of symmetry. This is applied to polyhedral products to give a loop space decomposition of polyhedral products associated to families of graphs.
description: 29 pages, Accepted version of manuscript in European Journal of Mathematics