cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An agent-based framework for modeling the effectiveness of hurricane mitigation incentives
Creators: name: Pei, Bin
name: Pang, Weichiang
name: Testik, Firat Y.
name: Ravichandran, Nadarajah
Publisher: name: The University of British Columbia
Year: 2015

description: To evaluate the effectiveness of different incentives for mitigating regional hurricane hazards, an agent-based hurricane mitigation framework was developed. This framework, which consists of six essential components, is able to consider stakeholders’ points of view on the selections of hurricane retrofit measures and the dynamic evolutions of building inventories (i.e. constructions and demolitions). Based on the findings of this study, among different levels of property tax reduction, a reduction between 50% and 75% was found to be the most effective one that leads to the highest hurricane cost reduction the study region can get in a 25-year timeframe.
Dissipationless Spin Current Generation in Kitaev's Chiral Spin Liquid
Creators: name: Takikawa, Daichi
name: Yamada, Masahiko G.
name: Fujimoto, Satoshi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: $α$-RuCl$_3$ is a promising candidate material for the Kitaev spin liquid state where the half quantization of the thermal Hall effect, suggesting a topological character, has been observed. However, its relation to the existence of chiral Majorana fermions, which is predicted from the theory of the Kitaev model, is still under debate. Here we propose a more direct signature of a chiral Majorana edge mode which emerges in a universal scaling of the Drude weight of the edge spin Seebeck effect in the Kitaev model. Moreover, the absence of backscatterings in the chiral edge mode results in the generation of a dissipationless spin current in spite of an extremely short spin correlation length close to a lattice constant in the bulk. This result is not only experimentally observable, but also opens a way towards spintronics application of Kitaev materials. In contrast to magnetically ordered systems, a Kitaev spin liquid state is stable even in the atomic scale and makes it possible to fabricate a highly integrated device with substantial efficiency to generate a spin current. This proposal for using $α$-RuCl$_3$ as a nano-scale device will pioneer Kitaev spintronics.
description: 8 pages, 4 figures
title: The bias of international criminal justice and the possibility to overcome it: considerations regarding the appointment of African judges to reduce the colonial legacy
Creators: name: Squeff, Tatiana Cardoso
name: Cantuária, Christian Leonardo S.
name: Carrijo, Augusto Guimarães
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: 345 Strafrecht

description: The International Criminal Court (ICC) is by many critical voices seen as one more mechanism to maintain the current neocolonial/neo-imperial order, which persists in subdividing the world between centre-periphery and masterssubalterns. Therefore, we question through this study, if the appointment of African judges to the ICC could be a starting point to decolonize the international criminal justice system. We justify this study with one of the arguments mostly used to reduce or even dismiss the (neo)imperial/(neo)colonial view of the current system, which is that the former ICC chief prosecutor, Fatou Bensouda, was Gambian. This argument relies on using nationality to remove any doubts about the investigations of African cases by the Court. Further, there are no studies on the position of the African judges currently sitting in The Hague, in the sense of verifying whether they are against the opening of investigations and acceptance of complaints involving African individuals. Furthermore, whether the African judges are more/less critical of the conviction/acquittal of such individuals, or whether they would be strictly technical, without any considerations on this regard. In addition, the study carries out a more quanti-qualitative work of detailing who the African judges are and mapping the dissenting opinions and other manifestations thereof. This is critical in assessing whether there is any position, that can confirm/refute an eventual reticence of the judges in relation to cases that judge international crimes committed in Africa. Our hypothesis is that nationality could not be used as a parameter to say that international criminal justice is not biased, which, at the end, was confirmed, since no significant criticism was noticed in the sentences of the African judges at the ICC.
Milano - New York et retour: un murales dimenticato di Keith Haring in via Laghetto?
Creators: name: Dalvit, Giulio
Publisher: name: Concorso. Arti e lettere
Year: 2016

description: Milano - New York et retour: un murales dimenticato di Keith Haring in via Laghetto?
description: Concorso. Arti e lettere, VIII - Fuori contesto I. Forestieri in Lombardia
A numerical characterisation of unconfined strength of weakly consolidated granular packs and its effect on fluid-driven fracture behaviour
Creators: name: Gago, Paula A.
name: Konstantinou, Charalampos
name: Biscontin, Giovanna
name: King, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Soft or weakly-consolidated sand refers to porous materials composed of particles (or grains) weakly held together to form a solid but that can be easily broken when subjected to stress. These materials do not behave as conventional brittle, linear elastic materials and the transition between these two regimes cannot usually be described using poro-elastic models. Furthermore, conventional geotechnical sampling techniques often result in the destruction of the cementation and recovery of sufficient intact core is, therefore, difficult. This paper studies a numerical model that allows us to introduce weak consolidation in granular packs. The model, based on the LIGGGHTS open source project, simply adds an attractive contribution to particles in contact. This simple model allow us to reproduce key elements of the behaviour of the stress observed in compacted sands and clay, as well as in poorly consolidated sandstones. The paper finishes by inspecting the effect of different consolidation levels in fluid-driven fracture behaviour. Numerical results are compared against experimental results on bio-cemented sandstones.
title: Modelle und Verfahren zur Planung von langfristigen Bauprojekten unter Kapitalwertgesichtspunkten
Creators: name: Zimmermann, Jürgen
Publisher: name: Bauhaus-Universität Weimar
Year: 2003
Subjects: subject: Investitionsplanung
subject: Kalkulation
subject: Kapitalwertmethode
subject: 620

description: Langfristige Bauprojekte stellen sowohl aus technischer Sicht als auch unter Planungsgesichtspunkten überaus komplexe Herausforderungen dar. Den laufenden Auszahlungen für Löhne, Materialien und fremdbezogene Dienstleistungen stehen dabei erst nach einiger Zeit Fortschrittszahlungen für abgeschlossene Teilprojekte gegenüber. Die Durchführung eines solchen Projekts kann mithin als Investition angesehen werden. Im Gegensatz zu herkömmlichen Investitionen liegen bei Investitionsprojekten die Zeitpunkte der Ein- und Auszahlungen nicht fest, sondern sind Gegenstand der Planung. Zur Lösung des Annahme- bzw. Auswahlproblems bei Investitionsprojekten unter Sicherheit erfreut sich die Kapitalwertmethode breiter Zustimmung. Nach einer Betrachtung bekannter Ansätze zur Maximierung des Kapitalwerts von Investitionsprojekten unter Annahme eines vollkommenen Kapitalmarktes wird aufgezeigt, wie das vorgestellte Modell zur Kapitalwertmaximierung für den Fall beschränkt verfügbarer Ressourcen bzw. eines beschränkten Kreditrahmens angepasst werden kann. Die Bewertung von Investitionsprojekten auf Grundlage des optimalen Projektkapitalwerts setzt die Kenntnis des anzuwendenden Kalkulationszinsfußes und der maximalen Projektdauer voraus. Da diese Größen a priori nicht bekannt sind, entwickeln wir ein Verfahren zur Bestimmung des Kapitalwerts von Investitionsprojekten als Funktion des Kalkulationszinsfußes und der maximalen Projektdauer. Abschließend zeigen wir, wie die erzielten Resultate zur Entscheidungsunterstützung eines Bauunternehmers genutzt werden können.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 10. bis 12.06.2003, Bauhaus-Universität Weimar, vol. 16, 2003
An efficient phase-field method for turbulent multiphase flows
Creators: name: Liu, Hao-Ran
name: Ng, Chong Shen
name: Chong, Kai Leong
name: Lohse, Detlef
name: Verzicco, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: With the aim of efficiently simulating three-dimensional multiphase turbulent flows with a phase-field method, we propose a new discretization scheme for the biharmonic term (the 4th-order derivative term) of the Cahn-Hilliard equation. This novel scheme can significantly reduce the computational cost while retaining the same accuracy as the original procedure. Our phase-field method is built on top of a direct numerical simulation solver, named AFiD (www.afid.eu) and open-sourced by our research group. It relies on a pencil distributed parallel strategy and a FFT-based Poisson solver. To deal with large density ratios between the two phases, a pressure split method [1] has been applied to the Poisson solver. To further reduce computational costs, we implement a multiple-resolution algorithm which decouples the discretizations for the Navier-Stokes equations and the scalar equation: while a stretched wall-resolving grid is used for the Navier-Stokes equations, for the Cahn-Hilliard equation we use a fine uniform mesh. The present method shows excellent computational performance for large-scale computation: on meshes up to 8 billion nodes and 3072 CPU cores, a multiphase flow needs only slightly less than 1.5 times the CPU time of the single-phase flow solver on the same grid. The present method is validated by comparing the results to previous studies for the cases of drop deformation in shear flow, including the convergence test with mesh refinement, and breakup of a rising buoyant bubble with density ratio up to 1000. Finally, we simulate the breakup of a big drop and the coalescence of O(10^3) drops in turbulent Rayleigh-Bénard convection at a Rayleigh number of $10^8$, observing good agreement with theoretical results.
description: 32 pages, 14 figures
Interaction of cosmological domain walls with large classical objects, like planets and satellites, and the flyby anomaly
Creators: name: Dai, De-Chang
name: Minic, Djordje
name: Stojkovic, Dejan
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmological domain walls can be formed as a result of symmetry breaking at any epoch during the evolution of our universe. We study their interaction with a classical macroscopic object, like Earth or a satellite in Earth's orbit. We set up an action that includes the interaction term between the massive classical object and the scalar field that the domain wall is made of. We use numerical calculations to solve the coupled equations of motion which describe the crossing between the domain wall and the classical object. Depending on the strength of the interaction, relative velocity and size, the object can be either stopped by the wall, or it can pass through it inducing deformations in the wall that cost energy. At the same time, the coupling to the scalar filed might change the object's mass during the crossover. The fact that satellites in Earth's orbit (or planets in Sun's orbit) can change their mass and/or lose energy interacting with walls can be used as a new domain wall detection probe. For example, a typical velocity precision of a satellite is about $0.5$ mm/s, which directly puts an upper limit on its mass change to $ΔM/M \lessapprox 5\times 10^{-17} $. Alternatively, a known satellite flyby anomaly can easily be explained as an interaction with a closed domain wall. We also show that the presence of matter modifies the scalar filed potential and can locally create a bubble of the true vacuum, and thus trigger the decay of the false vacuum. For a critical bubble which is able to expand, such an interaction with the domain wall must be strong enough.
description: 12 figures
КОРХОНАЛАР БОШҚАРУВ СТРАТЕГИЯЛАРИНИНГ ТУРЛАРИ
Creators: name: Сотволдиев, Алишер
Publisher: name: Zenodo
Year: 2025

description: Мақолада корхоналар бошқарув стратегияларининг турлари таҳлил қилинган бўлиб, улар бизнес, функционал ва корпоратив гуруҳларга бўлинган. Тўғри стратегик қарорлар қабул қилиш ва бошқарув амалиётларини яхшилаш орқали корхоналар ўз иқтисодий самарадорлигини оширишга эришиши мумкин.
title: International criminal law and the neo-colonial contract: Africa’s quagmire and prospects for sustainable decolonisation
Creators: name: Mude, Torque
name: Maramura, Tafadzwa
name: Justinu, Avelinu
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: 345 Strafrecht

description: This chapter exposes the complexity of the interplay between international criminal law and the neo-colonial contract, whose concomitant implications have placed Africa in a quagmire in respect of strategies to deploy towards an effective decolonial legal order. Established as covert neo-colonial mechanism, the international criminal justice system seems to have been deployed to perpetuate neo-colonialism through domestic and international political networks, laws, and institutions. The International Criminal Court’s (ICC) selective application of international criminal law and manipulation of universal jurisdiction targeting Africans, is arguably designed to control Africa from a distance. With thirty-three African states being party to the 1998 Rome Statute of the ICC that created the ICC, their manufactured consent has made Africa sink deeper into the neo-colonial imbroglio. This is because the ICC is part of the broad and complex network of a global capitalist economy, imperialistic legal order, Euro-North American cultural and moral orders, and post-1945 sovereign state system. As a result, initial attempts by African states to extricate themselves individually and collectively from “lawfare” (weaponisation of legal rules and institutions for political institutions) deployed through the ICC have not been effective. Proposals, petitions, dialogue, anti-colonial movements, ideologies, and confrontation among others have been tried by African states to liberate themselves from the neo-colonial contract, without the anticipated success. In addition, this chapter also examines Africa’s prospects for addressing the colonial contract towards sustainable decolonisation of the international criminal justice system. In conclusion, this chapter maintains that prospects for decolonising the neo-colonial agenda of international criminal law depend on Third World countries continuously and collectively deploying a combination of radical and diplomatic strategies.
title: Discrete-continual finite element method of analysis for three-dimensional curvilinear structures
Creators: name: Zolotov, Alexander B.
name: Akimov, Pavel
Publisher: name: Bauhaus-Universität Weimar
Year: 2003
Subjects: subject: Raumtragwerk
subject: Kreis
subject: Finite-Elemente-Methode
subject: 620

description: This paper is devoted to discrete-continual finite element method (DCFEM) of analysis for three-dimensional curvilinear structures. Operational and variational formulations of the problem in the ring coordinate system are presented. The discrete-continual design model for structures with constant physical and geometrical parameters in longitudinal direction is offered on the basis of so-called curvilinear discrete-continual finite elements. Element coordinate system, approximation of nodal unknowns, construction of element nodal load vector are under consideration. Element system of differential equations is formulated with use of special generalized block-structured stiffness matrix of discrete-continual finite element. Local differential relations are formulated. Resultant multipoint boundary problem for system of ordinary differential equations is given. Method of analytical solution of multipoint boundary problems in structural analysis is offered as well. Its major peculiarities include universality, computer-oriented algorithm involving theory of distributions, computational stability, optimal conditionality of resultant systems, partial Jordan decomposition of matrix of coefficients, eliminating necessity of calculation of root vectors. Brief information concerning developed software is provided.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 10. bis 12.06.2003, Bauhaus-Universität Weimar, vol. 16, 2003
Coherence based inequality for the discrimination of three-qubit GHZ and W class
Creators: name: Kairon, Pranav
name: Singh, Mukhtiyar
name: Adhikari, Satyabrata
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum coherence and entanglement orignate from the superposition principle. We derive a rigorous relation between the ${l_1}$-norm of coherence and concurrence, in that we show that the former is always greater than the latter. This result highlights the hierarchical relationship between coherence and concurrence, and proves coherence to be a fundamental and ubiquitous resource. We derive an analogous form of monogamy inequality which is based on the partial coherence of the reduced two-qubit and reduced single qubit of the particular class of three-qubit state. Moreover, we provide coherence based inequality for the classification of GHZ class and W class of three-qubit states. Finally, we provide theoretical discussion for the possible implementation of the scheme in an experiment.
description: 5 pages, 1 figure
Cryptochironomus albofasciatus
Creators: name: Stasiukynas, Laurynas
name: Laurindo da Silva, Fabio
name: Havelka, Jekaterina
name: Podėnas, Sigitas
name: Lekoveckaitė, Aistė
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Cryptochironomus
Cryptochironomus albofasciatus

description: Cryptochironomus albofasciatus (Staeger, 1839)
Notes
Morpho-molecular identification (GenBank ID: PQ 458101; PQ 458102). New record for Lithuania.
description: Published as part of Stasiukynas, Laurynas, Laurindo da Silva, Fabio, Havelka, Jekaterina, Podėnas, Sigitas & Lekoveckaitė, Aistė, 2024, Chironomidae (Diptera) of the Šventoji and Žeimena sub-basins in Lithuania, pp. e 130218 in Biodiversity Data Journal 12 on page e130218, DOI: 10.3897/BDJ.12.e130218
Coherent manipulation of graph states composed of finite-energy Gottesman-Kitaev-Preskill-encoded qubits
Creators: name: Seshadreesan, Kaushik P.
name: Dhara, Prajit
name: Patil, Ashlesha
name: Jiang, Liang
name: Guha, Saikat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Graph states are a central resource in measurement-based quantum information processing. In the photonic qubit architecture based on Gottesman-Kitaev-Preskill (GKP) encoding, the generation of high-fidelity graph states composed of realistic, finite-energy approximate GKP-encoded qubits thus constitutes a key task. We consider the finite-energy approximation of GKP qubit states given by a coherent superposition of shifted finite-squeezed vacuum states, where the displacements are Gaussian distributed. We present an exact description of graph states composed of such approximate GKP qubits as a coherent superposition of a Gaussian ensemble of randomly displaced ideal GKP-qubit graph states. We determine the transformation rules for the covariance matrix and the mean displacement vector of the Gaussian distribution of the ensemble under tools such as GKP-Steane error correction and fusion operations that can be used to grow large, high-fidelity GKP-qubit graph states. The former captures the noise in the graph state due to the finite-energy approximation of GKP qubits, while the latter relates to the possible absolute displacement errors on the individual qubits due to the homodyne measurements that are a part of these tools. The rules thus help in pinning down an exact coherent error model for graph states generated from truly finite-energy GKP qubits, which can shed light on their error correction properties.
description: 17 pages. Comments are welcome
Methods Included: Standardizing Computational Reuse and Portability with the Common Workflow Language
Creators: name: Crusoe, Michael R.
name: Abeln, Sanne
name: Iosup, Alexandru
name: Amstutz, Peter
name: Chilton, John
name: Tijanić, Nebojša
name: Ménager, Hervé
name: Soiland-Reyes, Stian
name: Gavrilovic, Bogdan
name: Goble, Carole
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: Computational Workflows are widely used in data analysis, enabling innovation and decision-making. In many domains (bioinformatics, image analysis, & radio astronomy) the analysis components are numerous and written in multiple different computer languages by third parties. However, many competing workflow systems exist, severely limiting portability of such workflows, thereby hindering the transfer of workflows between different systems, between different projects and different settings, leading to vendor lock-ins and limiting their generic re-usability. Here we present the Common Workflow Language (CWL) project which produces free and open standards for describing command-line tool based workflows. The CWL standards provide a common but reduced set of abstractions that are both used in practice and implemented in many popular workflow systems. The CWL language is declarative, which allows expressing computational workflows constructed from diverse software tools, executed each through their command-line interface. Being explicit about the runtime environment and any use of software containers enables portability and reuse. Workflows written according to the CWL standards are a reusable description of that analysis that are runnable on a diverse set of computing environments. These descriptions contain enough information for advanced optimization without additional input from workflow authors. The CWL standards support polylingual workflows, enabling portability and reuse of such workflows, easing for example scholarly publication, fulfilling regulatory requirements, collaboration in/between academic research and industry, while reducing implementation costs. CWL has been taken up by a wide variety of domains, and industries and support has been implemented in many major workflow systems.
description: 8 pages, 3 figures. For the LaTex source code of this paper, see https://github.com/mr-c/cwl_methods_included
title: Colonial injustices under international law: a study of the 1904-1908 Herero/Nama genocide
Creators: name: Harris, Christian
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: 345 Strafrecht

description: The Herero/Nama genocide of 1904-1908 is indeed a sad chapter in the Namibian history. It is often described by historians as the first genocide of the 20th century similar or worse in scope to the Armenian genocide of World War I. The genocide resulted in the displacement and almost the obliteration of the Herero and Nama ethnic groups who resided in the territory of the then German South West Africa. Although it is widely accepted that the order for the extermination of these two groups was made by General Lothar von Trotha who was resident in the territory at the time, there exists evidence that there was tacit approval from the Kaiser’s government which gave the greenlight for the genocide to begin. However, little literature exists on the impact of the genocide on the socio-economic conditions of the affected communities and Namibia in general. This chapter departs with the assumption that Namibia is among the most unequal countries in the world partly due to its colonial history. This assumption is supported by scholars who posit that the population displacement, confiscation of cattle and land by the German colonial authorities impoverished the Ovaherero and Nama communities – thereby exacerbating the disparities and inequality in the Namibian society. The legacy of Germany’s colonial rule still reverberates today. The most arable land in Namibia today is in the hands of white farmers of mostly German descent. Therefore, this chapter aims to investigate the legacies of colonialism and their effects in Namibia. In addition, the chapter makes postulations on strategies that may be adopted, including reparations from Germany, to alleviate the current palatable socio-economic conditions and other political problems afflicting Namibia.
KO'P FOYDALANUVCHILI BBBT ARXITEKTURASI
Creators: name: Tojimamatov, Israil
name: Abduvaliyev, Xusanboy
Publisher: name: Zenodo
Year: 2025

description: Ushbu hujjatda ko‘p foydalanuvchili Big Data Based Technology arxitekturasining nazariy asoslari keng yoritilgan. Tadqiqotda ko‘p foydalanuvchili tizimlarning umumiy tushunchasi, BBBT arxitekturasining xususiyatlari, tuzilishi, resurslarni boshqarish usullari, xavfsizlik masalalari, moslashuvchanlik va unumdorlik imkoniyatlari hamda afzallik va kamchiliklari tahlil qilinadi. Hujjatning maqsadi – ushbu arxitekturaning zamonaviy axborot texnologiyalari sohasidagi ahamiyatini ko‘rsatish va uning amaliy qo‘llanilishi bo‘yicha nazariy asoslarni taqdim etishdan iborat. Tadqiqot natijasida BBBT arxitekturasining katta hajmdagi ma’lumotlarni boshqarish va ko‘p foydalanuvchilarga samarali xizmat ko‘rsatishdagi o‘rni ta’kidlanadi.
On computational capabilities of Ising machines based on nonlinear oscillators,
Creators: name: Erementchouk, Mikhail
name: Shukla, Aditya
name: Mazumder, Pinaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Dynamical Ising machines are actively investigated from the perspective of finding efficient heuristics for NP-hard optimization problems. However, the existing data demonstrate super-polynomial scaling of the running time with the system size, which is incompatible with large NP-hard problems. We show that oscillator networks implementing the Kuramoto model of synchronization are capable of demonstrating polynomial scaling. The dynamics of these networks is related to the semidefinite programming relaxation of the Ising model ground state problem. Consequently, such networks, as we numerically demonstrate, are capable of producing the best possible approximation in polynomial time. To reach such performance, however, the reconstruction of the binary Ising state (rounding) must be specially addressed. We demonstrate that commonly implemented forced collapse to a close-to-Ising state may diminish the computational capabilities up to their complete invalidation. Therefore, consistent treatment of rounding may cardinally improve various operation metrics of already existing and upcoming dynamical Ising machines.
description: 17 pages, 3 figures
Improving the Regularity of Vector Fields
Creators: name: Street, Brian
name: Yao, Liding
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 2020: 57R25 (Primary), 57R25, 35R05 and 53C17 (Secondary)

description: Let $α>0$, $β>α$, and let $X_1,\ldots, X_q$ be $\mathscr{C}^α_{\mathrm{loc}}$ vector fields on a $\mathscr{C}^{α+1}$ manifold which span the tangent space at every point, where $\mathscr{C}^{s}$ denotes the Zygmund-Hölder space of order $s$. We give necessary and sufficient conditions for when there is a $\mathscr{C}^{β+1}$ structure on the manifold, compatible with its $\mathscr{C}^{α+1}$ structure, with respect to which $X_1,\ldots, X_q$ are $\mathscr{C}^β_{\mathrm{loc}}$. This strengthens previous results of the first author which dealt with the setting $α>1$, $β>\max\{ α, 2\}$.
description: 53 pages. Final version, to be appeared in Journal of Functional Analysis
title: Integrated Planning Support System for Low-Income Housing
Creators: name: González, Luis Felipe
name: Donath, Dirk
Publisher: name: Bauhaus-Universität Weimar
Year: 2003
Subjects: subject: Benutzerbeteiligung
subject: Wohnung
subject: Bauplanung
subject: 620

description: Die digitale Unterstützung der Planungsprozesse ist ein aktueller Forschungs- und Arbeitsschwerpunkt der Professur Informatik in der Architektur (InfAR) und der Juniorprofessur Architekturinformatik der Fakultät Architektur an der Bauhaus-Universität Weimar. Verankert in dem DFG Sonderforschungsbereich 524 >Werkzeuge und Konstruktionen für die Revitalisierung von Bauwerken< werden Konzepte und Prototypen für eine fachlich orientierte Planungsunterstützung entwickelt. Im Rahmen unseres Forschungsschwerpunkt zur digitalen Unterstützung der Planungsprozessen, das folgende Forschungsprojekt namens, >Integrated Planning Support System for Low-Income Housing< (IPSS) konzentriert sich auf die Entwicklung einer Sammlung von computergestützten Werkzeugen, um Benutzer-entworfene Wohnungen zu unterstützen, mittels der integrativen Kombinierung von Information Systems Leistungen, Computer Assisted Designwerkzeugen und online Kommunikationstechniken. Mit diesem Set von integrierten Planungswerkzeugen erwarten wir, Bewohnern von ressourcenmangelnden Gemeinden zu ermöglichen, ihre Wohnungen-Ausdehnung effizient zu planen. In diesem Sinne, ist es auch unser Ziel die räumliche, funktionale und vielleicht auch die konstruktive Qualität Benutzer-entworfener Wohnungen zu verbessern.
description: Internationales Kolloquium über Anwendungen der Informatik und Mathematik in Architektur und Bauwesen : 10. bis 12.06.2003, Bauhaus-Universität Weimar, vol. 16, 2003
Enhancing Heat Transport in Multiphase Rayleigh-Bénard Turbulence by Changing the Plate-Liquid Contact Angles
Creators: name: Liu, Hao-Ran
name: Chong, Kai Leong
name: Ng, Chong Shen
name: Verzicco, Roberto
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This numerical study presents a simple but extremely effective way to considerably enhance heat transport in turbulent multiphase flows, namely by using oleophilic walls. As a model system, we pick the Rayleigh-Bénard setup, filled with an oil-water mixture. For oleophilic walls, e.g. using only $10\%$ volume fraction of oil in water, we observe a remarkable heat transport enhancement of more than $100\%$ as compared to the pure water case. In contrast, for oleophobic walls, the enhancement is then only about $20\%$ as compared to pure water. The physical explanation of the highly-efficient heat transport for oleophilic walls is that thermal plumes detach from the oil-rich boundary layer and are transported together with the oil phase. In the bulk, the oil-water interface prevents the plumes to mix with the turbulent water bulk. To confirm this physical picture, we show that the minimum amount of oil to achieve the maximum heat transport is set by the volume fraction of the thermal plumes. Our findings provide guidelines of how to optimize heat transport in thermal turbulence. Moreover, the physical insight of how coherent structures are coupled with one phase of a two-phase system has very general applicability for controlling transport properties in other turbulent multiphase flows.
description: 11 pages, 4 figues
Approximate MRAM: High-performance and Power-efficient Computing with MRAM Chips for Error-tolerant Applications
Creators: name: Ferdaus, Farah
name: Talukder, B. M. S. Bahar
name: Rahman, Md Tauhidur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: Approximate computing (AC) leverages the inherent error resilience and is used in many big-data applications from various domains such as multimedia, computer vision, signal processing, and machine learning to improve systems performance and power consumption. Like many other approximate circuits and algorithms, the memory subsystem can also be used to enhance performance and save power significantly. This paper proposes an efficient and effective systematic methodology to construct an approximate non-volatile magneto-resistive RAM (MRAM) framework using consumer-off-the-shelf (COTS) MRAM chips. In the proposed scheme, an extensive experimental characterization of memory errors is performed by manipulating the write latency of MRAM chips which exploits the inherent (intrinsic/extrinsic process variation) stochastic switching behavior of magnetic tunnel junctions (MTJs). The experimental results and error-resilient image application reveal that the proposed AC framework provides a significant performance improvement and demonstrates a maximum reduction in MRAM write current of ~66% on average with negligible or no loss in output quality.
Search for lepton-flavor-violating ALPs at a future muon collider and utilization of polarization-induced effects
Creators: name: Haghighat, Gholamhossein
name: Najafabadi, Mojtaba Mohammadi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Axion-Like Particles (ALPs) are pseudo Nambu-Goldstone bosons associated with spontaneously broken global $U(1)$ symmetries. Such particles can have lepton-flavor-violating (LFV) couplings to the SM charged leptons. LFV ALPs provide the possibility to address some of the SM long-lasting problems. We investigate the sensitivity of a future muon collider suggested by the Muon Accelerator Program (MAP) to the production of LFV ALPs in the ALP mass range $m_a\leq1$ MeV. ALPs are assumed to be produced through the LFV decay $τ\ra\ell a$ ($\ell=e,μ$) of one of the tau leptons produced in the muon-anti muon annihilation. Performing a realistic detector simulation and deploying a multivariate technique, we constrain the LFV couplings $c_{τe}$ and $c_{τμ}$ for both the cases of unpolarized and polarized muon beams. Three different chiral structures are considered for the LFV ALP coupling and the muon collider is assumed to operate at the center-of-mass energies of 126, 350 and 1500 GeV. We present a procedure to search for LFV ALPs at colliders which takes advantage of tau polarization-induced effects. Polarized tau leptons which produce such effects can be produced when the initial muon beams are polarized. Utilizing the properties of polarized tau decays, the main SM background which overwhelms the ALP production in the case of unpolarized muon beams can be significantly suppressed. We present 95$\%$ CL expected limits on the LFV couplings and show that the present analysis can improve current experimental limits on the ALP LFV couplings by roughly one order of magnitude.
description: 31 pages, 11 figures
Motif Prediction with Graph Neural Networks
Creators: name: Besta, Maciej
name: Grob, Raphael
name: Miglioli, Cesare
name: Bernold, Nicola
name: Kwasniewski, Grzegorz
name: Gjini, Gabriel
name: Kanakagiri, Raghavendra
name: Ashkboos, Saleh
name: Gianinazzi, Lukas
name: Dryden, Nikoli
name: Hoefler, Torsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Link prediction is one of the central problems in graph mining. However, recent studies highlight the importance of higher-order network analysis, where complex structures called motifs are the first-class citizens. We first show that existing link prediction schemes fail to effectively predict motifs. To alleviate this, we establish a general motif prediction problem and we propose several heuristics that assess the chances for a specified motif to appear. To make the scores realistic, our heuristics consider - among others - correlations between links, i.e., the potential impact of some arriving links on the appearance of other links in a given motif. Finally, for highest accuracy, we develop a graph neural network (GNN) architecture for motif prediction. Our architecture offers vertex features and sampling schemes that capture the rich structural properties of motifs. While our heuristics are fast and do not need any training, GNNs ensure highest accuracy of predicting motifs, both for dense (e.g., k-cliques) and for sparse ones (e.g., k-stars). We consistently outperform the best available competitor by more than 10% on average and up to 32% in area under the curve. Importantly, the advantages of our approach over schemes based on uncorrelated link prediction increase with the increasing motif size and complexity. We also successfully apply our architecture for predicting more arbitrary clusters and communities, illustrating its potential for graph mining beyond motif analysis.
Exploring black holes as particle accelerators: hoop-radius, target particles and escaping conditions
Creators: name: Liberati, Stefano
name: Pfeifer, Christian
name: Relancio, José Javier
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility that rotating black holes could be natural particle accelerators has been subject of intense debate. While it appears that for extremal Kerr black holes arbitrarily high center of mass energies could be achieved, several works pointed out that both theoretical as well as astrophysical arguments would severely dampen the attainable energies. In this work we study particle collisions near Kerr black holes, by reviewing and extending the so far proposed scenarios. Most noticeably, we shall focus on the recently advanced target particle scenarios which were claimed to reach arbitrarily high energies even for Schwarzschild black holes. By implementing the hoop conjecture we show that these scenarios involving near-horizon target particles are in principle able to attain, sub-Planckian, but still ultra-high center of mass energies of the order of $10^{23}-10^{25}$ eV even for non-extremal Kerr black holes. Furthermore, analysing the properties of particles produced in such collisions, we find that photons can escape to infinity. However, their energy is only of the order of the energy of the colliding particles and hence relatively low, which is the same conclusion previously reached in the literature about the original Bañados--Silk--West process. This finding points towards a general limitation of collisional Penrose processes, at least for what concerns their primary products.
description: Improved and extended version of the original article, now including a discussion of the escape conditions for the particles produced in a collisional Penrose processes
Capture and translocation of a rod-like molecule by a nanopore: orientation, charge distribution and hydrodynamics
Creators: name: Qiao, Le
name: Slater, Gary W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We investigate the translocation of rods with different charge distributions using hybrid Langevin Dynamics and Lattice Boltzmann (LD-LB) simulations. Electrostatic interactions are added to the system using the $P^3M$ algorithm to model the electrohydrodynamic interactions (EHI). We first examine the free-solution electrophoretic properties of rods with various charge distributions. Our translocation simulation results suggest that the order parameter is asymmetric during the capture and escape processes despite the symmetric electric field lines, while the impacts of the charge distribution on rod orientation are more significant during the capture process. The capture/threading/escape times are under the combined effects of charge screening, rod orientation, and charge distributions. We also show that the mean capture time of a rod is shorter when it is launched near the wall because rods tend to align along the wall and hence with the local field lines. Remarkably, the \textit{orientational capture radius} we proposed previously for uniformly charged rods is still valid in the presence of EHI.
Finite element reliability analysis of structures using the dimensional reduction method
Creators: name: Balomenos, Georgios P.
name: Pandey, Mahesh D.
Publisher: name: The University of British Columbia
Year: 2015

description: Finite Element Reliability Analysis (FERA) has been used to evaluate the reliability of structures. Mean and variance of the structural response is often estimated with the use of approximate methods, while structural response distribution is approximated based on Monte Carlo simulation (MCS). In this paper, FERA is applied in an efficient manner with the use of a Multiplicative form of Dimensional Reduction Method (M-DRM), which can estimate accurately the statistical moments and the probability distribution of the structural response, e.g., drift of a structure. The proposed approach is combined with OpenSees FE software and illustrated through the nonlinear pushover and nonlinear dynamic analysis of a steel frame. MCS is also performed for comparison of the proposed method.
Linear growth of quantum circuit complexity
Creators: name: Haferkamp, Jonas
name: Faist, Philippe
name: Kothakonda, Naga B. T.
name: Eisert, Jens
name: Halpern, Nicole Yunger
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Quantifying quantum states' complexity is a key problem in various subfields of science, from quantum computing to black-hole physics. We prove a prominent conjecture by Brown and Susskind about how random quantum circuits' complexity increases. Consider constructing a unitary from Haar-random two-qubit quantum gates. Implementing the unitary exactly requires a circuit of some minimal number of gates - the unitary's exact circuit complexity. We prove that this complexity grows linearly with the number of random gates, with unit probability, until saturating after exponentially many random gates. Our proof is surprisingly short, given the established difficulty of lower-bounding the exact circuit complexity. Our strategy combines differential topology and elementary algebraic geometry with an inductive construction of Clifford circuits.
description: 18 pages, 7 figures, replaced by final version
Supplementary document for End-to-end learned single lens design using improved Wiener deconvolution - 6212725.pdf
Creators: name: Zhang, Rongshuai
name: Tan, Fanjiao
name: Hou, Qingyu
name: Li, Zongling
name: Sun, Zaiwu
name: Yang, Changjian
name: Gao, Xiangyang
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplemental Document
Optimal transport in multilayer networks for traffic flow optimization
Creators: name: Ibrahim, Abdullahi Adinoyi
name: Lonardi, Alessandro
name: De Bacco, Caterina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Modeling traffic distribution and extracting optimal flows in multilayer networks is of utmost importance to design efficient multi-modal network infrastructures. Recent results based on optimal transport theory provide powerful and computationally efficient methods to address this problem, but they are mainly focused on modeling single-layer networks. Here we adapt these results to study how optimal flows distribute on multilayer networks. We propose a model where optimal flows on different layers contribute differently to the total cost to be minimized. This is done by means of a parameter that varies with layers, which allows to flexibly tune the sensitivity to traffic congestion of the various layers. As an application, we consider transportation networks, where each layer is associated to a different transportation system and show how the traffic distribution varies as we tune this parameter across layers. We show an example of this result on the real 2-layer network of the city of Bordeaux with bus and tram, where we find that in certain regimes the presence of the tram network significantly unburdens the traffic on the road network. Our model paves the way to further analysis of optimal flows and navigability strategies in real multilayer networks.
description: 11 pages, 6 figures
title: Addressing colonial crimes in the Third World: The imperatives and potentials of a TWAIL paradigm
Creators: name: Iyi, John-Mark
name: Mushoriwa, Linda
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: 345 Strafrecht

description: From Africa to Asia to the Caribbean, there is a growing movement demanding redress for colonial crimes. Third World peoples are beginning to engage their former colonisers on different multilateral platforms to press for accountability for the harm suffered by communities that were victims of colonial atrocities during centuries of colonial rule. Most former colonial powers now concede that even if prosecution of colonial crimes may not be possible today due to many factors, at the very minimum, there is indeed, a need for some form of accountability and atonement. However, there is disagreement about the form such accountability should take and the appropriate and acceptable legal framework for addressing colonial legacies, particularly atrocities committed in wars of colonial conquests and centuries of violent dispossession and colonial subjugation. In this contribution, we ask the question, can contemporary international law adequately respond to the demands of Third World peoples for justice for colonial crimes? If not, can the Third World Approach to International Law (TWAIL) offer an alternative paradigm? The question of how the current international legal regime can address colonial crimes has been a difficult one especially with reference to the intertemporality rule, and we hope to contribute to the debate by highlighting the disruptive, emancipatory and transformative characteristics of TWAIL and its potential to contribute to the search for an alternative narrative of international legal rules in a way that takes seriously the need for redress for legacies of colonial crimes.
On the linearization stability of the Chern-scalar curvature
Creators: name: Angella, Daniele
name: Pediconi, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In this note, we study the local properties of the Chern-scalar curvature function by looking at its linearization. In particular, we study its linearization stability and the structure of the space of Hermitian metrics with prescribed Chern-scalar curvature.
description: In v2, the statement of Theorem C has been modified. 14 pages; comments are welcome