cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Joint User Scheduling and Power optimization in Full-Duplex Cells with Successive Interference Cancellation
Creators: name: Shahsavari, Shahram
name: Ramirez, David
name: Erkip, Elza
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper considers a cellular system with a full-duplex base station and half-duplex users. The base station can activate one user in uplink or downlink (half-duplex mode), or two different users one in each direction simultaneously (full-duplex mode). Simultaneous transmissions in uplink and downlink causes self-interference at the base station and uplink-to-downlink interference at the downlink user. Although uplink-to-downlink interference is typically treated as noise, it is shown that successive interference decoding and cancellation (SIC mode) can lead to significant improvement in network utility, especially when user distribution is concentrated around a few hotspots. The proposed temporal fair user scheduling algorithm and corresponding power optimization utilizes full-duplex and SIC modes as well as half-duplex transmissions based on their impact on network utility. Simulation results reveal that the proposed strategy can achieve up to 95% average cell throughput improvement in typical indoor scenarios with respect to a conventional network in which the base station is half-duplex.
description: To be appeared in IEEE Asilomar Conference on Signals, Systems, and Computers, 2017
title: Urban Mobility and Parking Demand
Creators: name: Winter, Stephan
Publisher: name: TU Wien
Year: 2021
Subjects: active mobility
disruptions to motorized mobility
mobility as a service

description: Parking demand, both current and future, depends on two aspects: the long-term impact of urbanization and urban planning on parking demand, which is not addressed here, and, secondly, the choice of mobility modes, which is discussed here. The choice of mobility modes may, on one hand, require smart parking management and parking information, which is a result of the tracking technology discussed before. On the other hand an informed or incentivized choice of mobility modes may even lead to less parking demand.
Lessons from the Early History of the Federal Reserve
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: For the past five years, one of my main occupations has been the early history of the Federal Reserve. I have looked in detail at its voluminous records of its formative years. My talk today is a brief summary of some of the things I have learned.
title: ADCO, Cart. 186 (11 H 71), f. 0229v
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: Petot, Frédéric
name: CBMA/CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la Côte-d'Or, C
art. 186 (11 H 71). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, t. II (XVe siècle), tome II, Archives départementales de la
 Côte-d'Or, Cart. 186 (11 H 71), f. 0229v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-
project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
title: Parking as a Challenge for Urban Mobility: Introduction
Creators: name: Winter, Stephan
name: Goel, Salil
Publisher: name: TU Wien
Year: 2021
Subjects: parking
mobility
traffic

description: This part of the book collects smart city approaches to support parking, mostly focusing on the parking pressure in inner-urban areas. The presented recipes for parking information and management rely on a smart – sensor-infused, connected, digitally enhanced – urban parking infrastructure that incorporates and utilizes the smart geospatial technologies presented in the first part. It also complements the approaches presented at the end of the first part, which focused on avoiding and shifting private motorized trips in cities, and thus alleviated parking pressure. The approaches presented also weigh also their options when confronted with traffic on roads with less infrastructure and less discipline.
Nematic Pairing from Orbital Selective Spin Fluctuations in FeSe
Creators: name: Benfatto, L.
name: Valenzuela, B.
name: Fanfarillo, L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: FeSe is an intriguing iron-based superconductor. It presents an unusual nematic state without magnetism and can be tuned to increase the critical superconducting temperature. Recently it has been observed a noteworthy anisotropy of the superconducting gaps. Its explanation is intimately related to the understanding of the nematic transition itself. Here we show that the spin-nematic scenario driven by orbital-selective spin-fluctuations provides a simple scheme to understand both phenomena. The pairing mediated by anisotropic spin modes is not only orbital selective but also nematic, leading to stronger pair scattering across the hole and $X$ electron pocket. The delicate balance between orbital ordering and nematic pairing points also to a marked $k_z$ dependence of the hole-gap anisotropy.
description: Main text: 6 pages + 5 figure + Supplementary Material. We added new numerical results obtained adding a pairing xy channel. We showed results for the Y electron pocket. We revised the discussion section in order to give a more balanced account of the differences with previous other works
Light Threshold Effects in Supersymmetric Grand Unified Theories
Creators: name: Faraggi, Alon E.
name: Grinstein, Benjamin
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Supersymmetric Grand Unified Theories have a rich spectrum of particles barely heavier than the intermediate vector bosons. As their non-supersymmetric counterparts, they lead to many relations among low energy observables. But the precise form of the predictions is modified by the extended spectrum. If the masses of these new particles are comparable to $M_Z$, the standard computation of their effect becomes inaccurate. We present a detail discussion of the correct procedure, and carry out the relevant computations to one loop order. The procedure we propose has the advantage over other existing methods that two-loop running of gauge couplings can be incorporated readily and consistently. Attention is paid to the special treatment that the top and Higgs particles must receive. The size of the effect is explored for a range of parameters in the minimal supersymmetric $SU(5)$ grand-unified theory with radiative breaking. It is found that the naive (leading-log) computation can be fairly inaccurate.
description: 33 pages (13 revised figures available by anonymous ftp), two new sections, some improvements, SSCL--Preprint--496 and WIS--93/61/JULY--PH
Quark model: recent issues
Creators: name: Stancu, Fl.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the first part I briefly survey recent issues in constituent quark models raised by the observation of unusual hadronic states. In particular I discuss the role of higher Fock components in the wave function of baryons and the possible interpretation of open charm and of new charmonium-type resonances as tetraquarks. In the second part I show support for the quark model dynamics obtained in a model independent way from the $1/N_c$ expansion approach of QCD which proved to be successful in describing baryon properties.
description: 10 pages, invited talk at MENU2007, September 10-14, 2007, Juelich, Germany
Lessons from Benzene
Creators: name: Lave, Lester B.
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The U.S. Occupational Safety and Health Administration (OSHA) attempted to promulgate a more stringent standard for worker exposure to benzene on the grounds that no level was safe and the proposed regulation was technically and economically feasible. Quantitative risk analyses showed the estimated reduction in leukemia to be extremely small while control costs were large. The Supreme Court vacated the standard on the grounds that OSHA had failed to demonstrate there was a significant risk at the current standard. Although surrounded by uncertainty, quantitative analyses of risk and cost provide better data for regulatory decisions.
Electromagnetic stress tensor for amorphous metamaterial medium
Creators: name: Wang, Neng
name: Wang, Shubo
name: Ng, Jack
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We analytically and numerically investigated the internal optical forces exerted by an electromagnetic wave inside an amorphous metamaterial medium. We derived, by using the principle of virtual work, the Helmholtz stress tensor, which takes into account the electrostiction effect. Several examples of amorphous media are considered, and different electromagnetic stress tensors, such as the Einstein-Laub tensor and Minkowski tensor, are also compared. It is concluded that the Helmholtz stress tensor is the appropriate tensor for such systems.
description: 24 pages, 9 figures
Study of the Reasons for the Geometric Albedo Variations of Uranus
Creators: name: Kostogryz, N. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The method of the optical parameter estimations of the nonisothermal giant planet atmospheres by using intensity data of Raman scattering features was used. We applied this method to the observational data of Uranus' geometric albedo spectra from 1981, 1993 and 1995 and obtained the spectral values of the optical depth, namely, $τ_a/τ_R$ and $τ_κ/τ_S$ (where $τ_a$, $τ_R$ are aerosol and gas components, $τ_S=τ_a+τ_R$ and $τ_κ$ is absorption component of the effective optical depth of the intensity of diffuse - reflected irradiation forming). We showed that these ratios are different for the three years. The conclusion is that this effect can be due to the horizontal inhomogeneity of aerosol component of optical depth over the Uranus' disk.
description: Published in Proceedings of the 14th Young Scientists Conference on Astronomy and Space Physics, Kyiv, Ukraine, April 23-28, 2007
Production of $Z$ Boson Pairs at Photon Linear Colliders
Creators: name: Dicus, Duane A.
name: Kao, Chung
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The $ZZ$ pair production rate in high energy $γγ$ collisions is evaluated with photons from laser backscattering. We find that searching for the Standard Model Higgs boson with a mass up to, or slightly larger than, 400 GeV via the $ZZ$ final state is possible via photon fusion with backscattered laser photons at a linear $e^+e^-$ collider with energies in the range 600 GeV $< \sqrt{s_{e^+e^-}}
description: 18 pages in REVTEX, Figures available upon request, DOE-ER40757-024,CPP-93-24 and FSU-HEP-930808
Stillman's conjecture via generic initial ideals
Creators: name: Draisma, Jan
name: Lason, Michal
name: Leykin, Anton
Publisher: name: arXiv
Year: 2018
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13A02, 13E99

description: Using recent work by Erman-Sam-Snowden, we show that finitely generated ideals in the ring of bounded-degree formal power series in infinitely many variables have finitely generated Gröbner bases relative to the graded reverse lexicographic order. We then combine this result with the first author's work on topological Noetherianity of polynomial functors to give an algorithmic proof of the following statement: ideals in polynomial rings generated by a fixed number of homogeneous polynomials of fixed degrees only have a finite number of possible generic initial ideals, independently of the number of variables that they involve and independently of the characteristic of the ground field. Our algorithm outputs not only a finite list of possible generic initial ideals, but also finite descriptions of the corresponding strata in the space of coefficients.
description: Several minor edits
Indian Muslims, Marginalised Communities and Covid-19
Creators: name: Ahmed, Zulfikar
Publisher: name: Zenodo
Year: 2020
Subjects: Covid-19, Muslims, Human rights, Discrimination, Violence, Stigmatization.

description: This paper is about the novel coronavirus (COVID19) and its afflictions on Indian Muslims. After a few incidents amid Covid-19, the Muslim community became subject to heavily vitriolic attacks from various sections of society. Muslims, a highly stigmatized community and still backward in economic fields encountered serious difficulties to sustain their livelihood and continue to enjoy their human rights. Their economic vulnerability, less representation in formal sectors particularly in government jobs and ghettoized identity led to serious human rights violations of this community amid Covid19. The percentage of the non-working population is highest among Muslims in the country (census report, 2001-11). India's steps to contain Covid-19 have failed to curb anti-Muslim rhetoric. Discrimination will affect the country’s fight against the pandemic. The rhetoric has already led to violent attacks on Muslims. A 22-yearold man, accused of conspiring to spread Covid-19, was attacked in Delhi. In Punjab, Muslim herders were allegedly forced to throw away hundreds of litres of milk, because of rumours that they were spreading coronavirus through milk. Police arrested a man for beating a Muslim vegetable vendor. In West Bengal, small-scaled riot broken out as Muslims were stopped from using public toilets. A pregnant Muslim woman was refused to admit. This paper is based on insights from census, recent reports and data to argue certain historical reasons by credible bodies. To this end, the paper tries to examine the relation between a pandemic and its impact on marginalized communities like Muslims and few other communities which have been affected more severely because of their existing social and economic backwardness, more dependence on informal sectors, and its further implications.
Theory of cooling neutron stars versus observations
Creators: name: Yakovlev, D. G.
name: Gnedin, O. Y.
name: Kaminker, A. D.
name: Potekhin, A. Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review current state of neutron star cooling theory and discuss the prospects to constrain the equation of state, neutrino emission and superfluid properties of neutron star cores by comparing the cooling theory with observations of thermal radiation from isolated neutron stars.
description: 9 pages, 4 figures, 3 tables, to appear in the proceedings of "40 Years of Pulsars" held in Montreal, Canada, August 12-17, 2007, eds. C. Bassa, Z. Wang, A. Cumming, V. Kaspi, AIP, in press (v.2 - minor bibliography corrections)
A new all-sky map of Galactic high-velocity clouds from the 21-cm HI4PI survey
Creators: name: Westmeier, Tobias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: High-velocity clouds (HVCs) are neutral or ionised gas clouds in the vicinity of the Milky Way that are characterised by high radial velocities inconsistent with participation in the regular rotation of the Galactic disc. Previous attempts to create a homogeneous all-sky HI map of HVCs have been hampered by a combination of poor angular resolution, limited surface brightness sensitivity and suboptimal sampling. Here, a new and improved HI map of Galactic HVCs based on the all-sky HI4PI survey is presented. The new map is fully sampled and provides significantly better angular resolution (16.2 versus 36 arcmin) and column density sensitivity (2.3 versus 3.7 * 10^18 cm^-2 at the native resolution) than the previously available LAB survey. The new HVC map resolves many of the major HVC complexes in the sky into an intricate network of narrow HI filaments and clumps that were not previously resolved by the LAB survey. The resulting sky coverage fraction of high-velocity HI emission above a column density level of 2 * 10^18 cm^-2 is approximately 15 per cent, which reduces to about 13 per cent when the Magellanic Clouds and other non-HVC emission are removed. The differential sky coverage fraction as a function of column density obeys a truncated power law with an exponent of -0.93 and a turnover point at about 5 * 10^19 cm^-2. HI column density and velocity maps of the HVC sky are made publicly available as FITS images for scientific use by the community.
description: 11 pages, 7 figures, 1 table, published in MNRAS
Improvements on Fresnel arrays for high contrast imaging
Creators: name: Wilhem, Roux
name: Koechlin, Laurent
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Fresnel Diffractive Array Imager (FDAI) is based on a new optical concept for space telescopes, developed at Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, France. For the visible and near-infrared it has already proven its performances in resolution and dynamic range. We propose it now for astrophysical applications in the ultraviolet with apertures from 6 to 30 meters, aimed at imaging in UV faint astrophysical sources close to bright ones, as well as other applications requiring high dynamic range. Of course the project needs first a probatory mission at small aperture to validate the concept in space. In collaboration with institutes in Spain and Russia, we will propose to board a small prototype of Fresnel imager on the International Space Station (ISS), with a program combining technical tests and astrophysical targets. The spectral domain should contain the Lyman-$α$ line ($λ= 121$ nm). As part of its preparation, we improve the Fresnel array design for a better Point Spread Function in UV, presently on a small laboratory prototype working at 260 nm. Moreover, we plan to validate a new optical design and chromatic correction adapted to UV. In this article we present the results of numerical propagations showing the improvement in dynamic range obtained by combining and adapting three methods : central obturation, optimization of the bars mesh holding the Fresnel rings, and orthogonal apodization. We briefly present the proposed astrophysical program of a probatory mission with such UV optics. Keywords: Fresnel arrays -- Diffractive optics -- UV imaging -- Apodization -- High dynamic range -- High angular resolution -- Exoplanets
description: 22 pages, 12 figures
title: Robustness and Responsiveness in Eukaryotic Protein Synthesis
Creators: name: Khan, Mohammad Farhan
Publisher: name: University of Kent
Year: 2017

description: Phosphorylation of eukaryotic translation initiation factor 2 (eIF2) is one of the best studied and most widely used means for regulating protein synthesis activity in eukaryotic cells. Control through eIF2 is exerted by its phosphorylation, which disrupts the guanidine exchange cycle that is required for every initiation event, and thereby inhibits translation. The eIF2 pathway regulates protein synthesis in response to stresses, viral infections, and nutrient depletion, among others. We present analyses of an ordinary differential equation-based model of this pathway, which aim to identify its principal robustness and stability conferring features using linear control theory. The eIF2 pathway can respond sensitively, appropriately and in a timely fashion to some changes in the environment of the cell, while being robust and unresponsive to other types of change. Neither the way in which appropriate responses are achieved (responsiveness), nor how inappropriate responses are avoided (robustness), is currently well understood. Our analyses indicate that, within eIF2 dependent regulatory model the robustness do not arising from the properties of any one individual pathway species rather is a distributed property. On the other hand, stability lies in the structure of the model that is damaging the structure produces major alterations in the stability. Further it is observed that, key non-linearities within the system helps in maintaining transient behaviour and removal or linearisation of key non-linearities can generate undesirable results such as negative cellular concentration. Our analyses also indicate existence of natural sliding surface within the eIF2 dependent regulatory system that helps the system in counteracting uncertainties lies in the input channel. Further, the role of uncharged transfer ribonucleic acid (tRNA) and protein kinase R (PKR) signalling on general translation rate as well as on phosporylation of eIF2-alpha is also investigated by extrapolating the proposed computational yeast model to the case of mammalian cells. It is observed that PKR is compensating the loss of general control nonderepressible 2 (GCN2) and maintaining levels of phosphorylated eIF2-alpha in tumours, while signalling strength of uncharged tRNA is responsible for delivering statistically significant difference in the ratio of phosphorylated eIF2 and alpha-subunit of eIF2 for mixed background and C57BL6 sarcomas.
Lessons from a History of the Federal Reserve: A First Look
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 2006
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Tomorrow evening we will hear Alan Greenspan talk about some parts of his role as the nation's and the world's leading central banker. Anticipating that event, I thought I would talk tonight about the organization he heads, some of the things they have done, and some of the people who led it. We all know the Federal Reserve as one of the most prestigious institutions in Washington, a pillar of strength and a symbol of stability. The Federal Reserve Chairman is often described as the second most important government official, surely outranking the Vice President in prestige if not in protocol. No one cares where the Secretary of State sits when the President gives the State of the Union address, but when the Chairman of the Federal Reserve sat next to the President's wife, there was much speculation about the apparent meaning.
Long-lived Remnants from Binary Neutron Star Mergers
Creators: name: Radice, David
name: Perego, Albino
name: Bernuzzi, Sebastiano
name: Zhang, Bing
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Massive neutron star (NS) with lifetimes of at least several seconds are expected to be the result of a sizable fraction of NS mergers. We study their formation using a large set of numerical relativity simulations. We show that they are initially endowed with angular momentum that significantly exceeds the mass-shedding limit for rigidly-rotating equilibria. We find that gravitational-wave (GW) emission is not able to remove this excess angular momentum within the time over which solid body rotation should be achieved. Instead, we argue that the excess angular momentum could be carried away by massive winds. Long-lived merger remnants are also formed with larger gravitational masses than those of rigidly-rotating NSs having the same number of baryons. The excess mass is likely radiated in the form of neutrinos. The evolution of long-lived remnants on the viscous timescale is thus determined by the interplay of finite-temperature effects, mass ejection, and neutrinos with potentially dramatic consequences for the remnants' properties and stability. We also provide an empirical fit for the spin of the remnant at the end of its viscous evolution as a function of its final mass, and we discuss the implications for the magnetar model of short gamma-ray bursts (SGRBs). Finally, we investigate the possible electromagnetic signatures associated with the viscous ejecta. Massive outflows possibly resulting from the formation of long-lived remnants would power unusually bright, blue kilonova counterparts to GW events and SGRBs whose detection would provide smoking gun evidence for the formation of long-lived remnants.
description: 14 pages, 9 figures, accepted in MNRAS. Updated affiliations
Longitudinal response function of 4He with a realistic force
Creators: name: Bacca, S.
name: Barnea, N.
name: Leidemann, W.
name: Orlandini, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The longitudinal response function of 4He is calculated with the Argonne V18 potential. The comparison with experiment suggests the need of a three-body force. When adding the Urbana IX three-body potential in the calculation of the lower longitudinal multipoles, the total strength is suppressed in the quasi-elastic peak, towards the trend of the experimental data.
description: 3 pages, 3 figures, proceedings of the 20th European Conference on Few-Body Problems in Physics (EFB20)
title: Εφαρμογή των αρχών κυκλικής οικονομίας και οικολογικού σχεδιασμού σε ηλιακά θερμικά συστήματα
title: Application of circular economy and eco-design principles in solar thermal systems
Creators: name: Νικοδημοπουλος Κωνσταντινος
Publisher: name: Technical University of Crete
Year: 2021

description: Η εξάντληση των αποθεμάτων συμβατικών καυσίμων του πλανήτη και η συνεχώς αυξανόμενη ζήτηση ενέργειας σε συνδυασμό με τη ραγδαία επιδείνωση των περιβαλλοντικών προβλημάτων, ανάγκασε τις σύγχρονες κοινωνίες να αναζητήσουν βιώσιμες λύσεις προκειμένου να αντιστραφεί αυτή η κατάσταση. Το εδραιωμένο γραμμικό μοντέλο παραγωγής που επικεντρώνεται στην εξόρυξη των πόρων, τη χρήση και την ανεκμετάλλευτη απόρριψή τους, χρήζει άμεσης αναδιαμόρφωσης. Έτσι, έννοιες όπως η κυκλική οικονομία, ο οικολογικός σχεδιασμός και η οικολογική σήμανση έκαναν την εμφάνισή τους. Η παρούσα διπλωματική εργασία ασχολείται με την ανάλυση των αρχών αυτών των εννοιών, καθώς και τη μεταξύ τους σχέση και αλληλεπίδραση. Είναι υψίστης σημασίας οι επιχειρήσεις, οι καταναλωτές και οι υπεύθυνοι χάραξης πολιτικής να αναγνωρίσουν τη σημαντικότητα και τα πολλαπλά κοινωνικά, οικονομικά και περιβαλλοντικά οφέλη αυτών των διαδικασιών, συνδράμοντας όλοι μαζί στην επιτυχή εφαρμογή τους. Επιπλέον, μελετάται η εφαρμογή των παραπάνω εννοιών σε ηλιακούς θερμικούς συλλέκτες προκειμένου να αξιολογηθεί το περιβαλλοντικό τους προφίλ.
description: The depletion of the planet's conventional fuel reserves and the ever-increasing demand for energy combined with the rapid environmental degradation have forced modern societies to seek sustainable solutions in order to reverse this situation. The established linear production model which focuses on the extraction of resources, their use and unexploited disposal, needs immediate restructuring. Thus, concepts such as circular economy, eco-design and ecolabelling have emerged. This diploma thesis deals with the analysis of the principles of these
concepts, as well as the relationship and interaction among them. It is of utmost importance that businesses, consumers and policy makers recognize the importance and the multiple social, economic and environmental benefits of these processes, contributing to their successful implementation. In addition, the application of the above concepts to solar thermal panels is studied in order to evaluate their environmental profile.
title: Expectation Complete Graph Representations Using Graph Homomorphisms
Creators: name: Welke, Pascal
name: Thiessen, Maximilian
name: Gärtner, Thomas
Publisher: name: TU Wien
Year: 2022
Subjects: Machine Learning

description: We propose and study a practical graph embedding that *in expectation* is able to distinguish all non-isomorphic graphs and can be computed in polynomial time. The embedding is based on Lovász' characterisation of graph isomorphism through an infinite dimensional vector of homomorphism counts. Recent work has studied the expressiveness of graph embeddings by comparing their ability to distinguish graphs to that of the Weisfeiler-Leman hierarchy. While previous methods have either limited expressiveness or are computationally impractical, we devise efficient sampling-based alternatives that are maximally expressive in expectation. We empirically evaluate our proposed embeddings and show competitive results on several benchmark graph learning tasks.
Equality @ PoliTo
Creators: name: Tabacco, A.
Publisher: name: Zenodo
Year: 2019
Subjects: Women, Science, CBHE, EU, gender, STEM, W-STEM, benchmarking, good practice

description: Best practice Equality @ PoliTo presented into the First Benchmarking Round session within the 2nd face-to-face meeting of the W-STEM ERASMUS + Capacity-building in Higher Education European Project (Ref. 598923-EPP-1-2018-1-ES-EPPKA2-CBHE-JP), which was held in Uninorte, Barranquilla (Colombia), 27-29 November 2019.
description: W-STEM (Building the future of Latin America: engaging women into STEM) is a project funded under European Union ERASMUS + Capacity-building in Higher Education Programme. (598923-EPP-1-2018-1-ES-EPPKA2-CBHE-JP) The European Commission support for the production of this publication does not constitute an endorsement of the contents which reflects the views only of the authors, and the Commission cannot be held responsi­ble for any use which may be made of the information contained therein.
title: Comparing User Perceptions of Anti-Stalkerware Apps with the Technical Reality
Creators: name: Fassl, Matthias
name: Anell, Simon
name: Houy, Sabine
name: Lindorfer, Martina
name: Krombholz, Katharina
Publisher: name: TU Wien
Year: 2022
Subjects: Stalkerware
Anti-Virus
User Perception

description: Every year an increasing number of users face stalkerware on their phones. Many of them are victims of intimate partner surveillance (IPS) who are unsure how to identify or remove stalkerware from their phones. An intuitive approach would be to choose anti-stalkerware from the app store. However, a mismatch between user expectations and the technical capabilities can produce an illusion of security and risk compensation behavior (i.e., the Peltzmann effect). We compare users’ perceptions of anti-stalkerware with the technical reality. First, we applied thematic analysis to app reviews to analyze user perceptions. Then, we performed a cognitive walkthrough of two prominent anti-stalkerware apps available on the Google Play Store and reverse-engineered them to understand their detection features. Our results suggest that users base their trust on the look and feel of the app, the number and type of alerts, and the apps’ affordances. We also found that app capabilities do not correspond to the users’ perceptions and expectations, impacting their practical effectiveness. We discuss different stakeholders’ options to remedy these challenges and better align user perceptions with the technical reality.
Longitudinal double-spin asymmetry for inclusive jet production in p+p collisions at sqrt(s)=200 GeV
Creators: name: STAR Collaboration
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a new STAR measurement of the longitudinal double-spin asymmetry A_LL for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt(s) = 200 GeV. The data, which cover jet transverse momenta 5 < p_T < 30 GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit of polarized deep-inelastic scattering measurements.
description: 7 pages, 4 figures + 1 table
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00614
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00614, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
A general formulation of long-range degree correlations in complex networks
Creators: name: Fujiki, Yuka
name: Takaguchi, Taro
name: Yakubo, Kousuke
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We provide a general framework for analyzing degree correlations between nodes separated by more than one step (i.e., beyond nearest neighbors) in complex networks. One probability and four conditional probabilities are introduced to fully describe long-range degree correlations with respect to $k$ and $k'$ of two nodes and shortest path length $l$ between them. We present general relations among these probabilities and clarify the relevance to nearest-neighbor degree correlations. Unlike nearest-neighbor correlations, some of these probabilities are meaningful only in finite-size networks. Furthermore, as a baseline to determine the existence or nonexistence of long-range degree correlations in a network, the functional forms of these probabilities for networks without any long-range degree correlations are analytically evaluated within a mean-field approximation. The validity of our argument is demonstrated by applying it to real-world networks.
description: 9 pages, 4 figures
VerdictDB: Universalizing Approximate Query Processing
Creators: name: Park, Yongjoo
name: Mozafari, Barzan
name: Sorenson, Joseph
name: Wang, Junhao
Publisher: name: arXiv
Year: 2018
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Despite 25 years of research in academia, approximate query processing (AQP) has had little industrial adoption. One of the major causes of this slow adoption is the reluctance of traditional vendors to make radical changes to their legacy codebases, and the preoccupation of newer vendors (e.g., SQL-on-Hadoop products) with implementing standard features. Additionally, the few AQP engines that are available are each tied to a specific platform and require users to completely abandon their existing databases---an unrealistic expectation given the infancy of the AQP technology. Therefore, we argue that a universal solution is needed: a database-agnostic approximation engine that will widen the reach of this emerging technology across various platforms. Our proposal, called VerdictDB, uses a middleware architecture that requires no changes to the backend database, and thus, can work with all off-the-shelf engines. Operating at the driver-level, VerdictDB intercepts analytical queries issued to the database and rewrites them into another query that, if executed by any standard relational engine, will yield sufficient information for computing an approximate answer. VerdictDB uses the returned result set to compute an approximate answer and error estimates, which are then passed on to the user or application. However, lack of access to the query execution layer introduces significant challenges in terms of generality, correctness, and efficiency. This paper shows how VerdictDB overcomes these challenges and delivers up to 171$\times$ speedup (18.45$\times$ on average) for a variety of existing engines, such as Impala, Spark SQL, and Amazon Redshift, while incurring less than 2.6% relative error. VerdictDB is open-sourced under Apache License.
description: Extended technical report of the paper that appeared in Proceedings of the 2018 International Conference on Management of Data, pp. 1461-1476. ACM, 2018
Lessons from 19709s Experience with Flexible Exchange Rates: A Comment
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1967
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Jacob Frenkel's paper assesses the operation of the international monetary system, after almost a decade of floating, Frenkel studies the performance of three exchange rates the dollar-pound, dollar-French franc, and dollar-mark rates-in the years of turbulence that followed the closing of the U.S. gold window. The period includes the two oil shocks and ends with the institutionalization of chaos in Iran.
Multiple Quintets via Singlet Fission in Ordered Films at Room Temperature
Creators: name: Lubert-Perquel, Daphné
name: Salvadori, Enrico
name: Dyson, Matthew
name: Stavrinou, Paul N.
name: Montis, Riccardo
name: Nagashima, Hiroki
name: Kobori, Yasuhiro
name: Heutz, Sandrine
name: Kay, Christopher W. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The growing interest in harnessing singlet fission for photovoltaic applications stems from the possibility of generating two excitons from a single photon. Quantum efficiencies above unity have been reported, yet the correlation between singlet fission and intermolecular geometry is poorly understood. To address this, we investigated ordered solid solutions of pentacene in p-terphenyl grown by organic molecular beam deposition. Two classes of dimers are expected from the crystal structure - parallel and herringbone - with intrinsically distinctive electronic coupling. Using electron paramagnetic resonance spectroscopy, we provide compelling evidence for the formation of distinct quintet excitons at room temperature. These are assigned to specific pentacene pairs according to their angular dependence. This work highlights the importance of controlling the intermolecular geometry and the need to develop adequate theoretical models to account for the relationship between structure and electronic interactions in strongly-coupled, high-spin molecular systems.
description: 12 pages, 5 figures, 1 table
Improved one-way rates for BB84 and 6-state protocols
Creators: name: Kern, Oliver
name: Renes, Joseph M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the advantages to be gained in quantum key distribution (QKD) protocols by combining the techniques of local randomization, or noisy preprocessing, and structured (nonrandom) block codes. Extending the results of [Smith, Renes, and Smolin, quant-ph/0607018] pertaining to BB84, we improve the best-known lower bound on the error rate for the 6-state protocol from 14.11% for local randomization alone to at least 14.59%. Additionally, we also study the effects of iterating the combined preprocessing scheme and find further improvements to the BB84 protocol already at small block lengths.
description: 17 pages, to appear in Quantum Information & Computation. Replaced by accepted version
Parallel Tempering for the planted clique problem
Creators: name: Angelini, Maria Chiara
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The theoretical information threshold for the planted clique problem is $2\log_2(N)$, however no polynomial algorithm is known to recover a planted clique of size $O(N^{1/2-ε})$, $ε>0$. In this paper we will apply a standard method for the analysis of disordered models, the Parallel-Tempering (PT) algorithm, to the clique problem, showing numerically that its time-scaling in the hard region is indeed polynomial for the analyzed sizes. We also apply PT to a different but connected model, the Sparse Planted Independent Set problem. In this situation thresholds should be sharper and finite size corrections should be less important. Also in this case PT shows a polynomial scaling in the hard region for the recovery.
description: 12 pages, 5 figures
title: Cascaded Model Predictive Control of Underactuated Bipedal Walking with Impact and Friction Considerations
Creators: name: Sovukluk, Sait
name: Ott, Christian
name: Ankarali, Mustafa Mert
Publisher: name: TU Wien
Year: 2023
Subjects: model predictive control (MPC)
Locomotion
Humanoid Robots

description: This study demonstrates a cascaded model predictive control (C-MPC) method for input constrained control of underactuated planar bipedal walking with any predefined sta-bilizable trajectory. Our approach aims to increase the trajectory tracking performance of the system and produce realistic and applicable responses while respecting friction constraints and considering impact dynamics. Primarily focusing on zero dynamics with PD (ZD+PD) control, this proposed control method constitutes a second layer controller on top of the well-known trajectory tracking controllers for underactuated bipedal walking systems. We successfully implement this model-based controller and test against large modeling errors, noises, and disturbances, where the conventional ZD+PD control fails to maintain stability.
THE ROLE OF PUBLIC AD0MINISTRATORS ON PUBLIC  POLICY MAKING IN MOGADISHU-SOMALIA
Creators: name: Abdirahman, Ibrahim Cige
Publisher: name: Zenodo
Year: 2025
Subjects: THE ROLE OF PUBLIC AD0MINISTRATORS
ON PUBLIC POLICY MAKING IN MOGADISHU-SOMALIA

description: ABSTRACT

 This study investigated the role of public administrators on public policy making the study had three objectives. The first objective was determining to identify the role of public administrators, working in thepublic service in public policy making development. The second objective of this study was to investigate of public administration and policy implementation in public participation at local government. The thirty objective of this study was to exam the relationship between public policy making and Citizen participation democracy and economic development in Mogadishu Somalia. The researcher found that there is strong relation and positive impact between public administrators on public policy making. The researcher used a questionnaire as data instrument and data was collected from the employee of local government in benadir region in Mogadishu Somalia. In this study the researchers used to analyze the data by using Statistical Package for Social Science (SPSS) version 16. The researchers preferred to use Statistical Package for Social Science (SPSS) version 16, because of its validity and reliability of analyzing the data...

➢  The study recommended the following:

 To support, encouraging and strengthening the public administrators on both government and community

To protected public workers where they in the working public. In actuality. iii. to enhance Actions of social cohesion are needed such tasks contributing to maintaining efforts that provide civil servants.

The government should promote the public administrator’s skills. And competency, consistency.

 

The government should allow citizens to fully participate in designing and implementation issue concerns the public administrator’s activities.

To enhance skills and knowledge of public sector workers in all level public servants.
The volume and Chern-Simons invariant of a representation
Creators: name: Zickert, Christian K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M27; 58J28

description: We give an efficient simplicial formula for the volume and Chern-Simons invariant of a boundary-parabolic PSL(2,C)-representation of a tame 3-manifold. If the representation is the geometric representation of a hyperbolic 3-manifold, our formula computes the volume and Chern-Simons invariant directly from an ideal triangulation with no use of additional combinatorial topology. In particular, the Chern-Simons invariant is computed just as easily as the volume.
description: 32 pages, 10 figures
Dispersion Approach in Two-Loop Calculations
Creators: name: Aleksejevs, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The higher-order corrections become increasingly important with experiments reaching sub-percent level of uncertainty as they look for physics beyond the Standard Model. Our goal is to address the full set of two-loop electroweak corrections to Møller or electron-proton scattering. It is a demanding task which requires an application of various approaches where two-loop calculations can be automatized. We choose to employ dispersive sub-loop insertion approach and develop two-loop integrals using two-point functions basis. In that basis, we introduce a partial tensor reduction for many-point Passarino-Veltman functions, which later could be used in computer algebra packages. In this paper, we have considered self-energy, triangle and box sub-loop insertions into self-energy, vertex and box topology.
description: fixed typos in Eq.(35) and Eq.(41)