cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Obscured Starburst Activity in High Redshift Clusters and Groups
Creators: name: Kocevski, Dale D.
name: Lemaux, Brian C.
name: Lubin, Lori M.
name: Gal, Roy R.
name: McGrath, Elizabeth J.
name: Fassnacht, Christopher D.
name: Squires, Gordon K.
name: Surace, Jason A.
name: Lacy, Mark
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using Spitzer-MIPS 24um imaging and Keck spectroscopy we examine the nature of the obscured star forming population in three clusters and three groups at z~0.9. These six systems are components of the Cl1604 supercluster, the largest structure imaged by Spitzer at redshifts near unity. We find that the average density of 24um-detected galaxies within the Cl1604 clusters is nearly twice that of the surrounding field and that this overdensity scales with the cluster's dynamical state. The 24um-bright members often appear optically unremarkable and exhibit only moderate [OII] line emission due to severe obscuration. Their spatial distribution suggests they are an infalling population, but an examination of their spectral properties, morphologies and optical colors indicate they are not simply analogs of the field population that have yet to be quenched. Using stacked composite spectra, we find the 24um-detected cluster and group galaxies exhibit elevated levels of Balmer absorption compared to galaxies undergoing normal, continuous star formation. A similar excess is not observed in field galaxies with equivalent infrared luminosities, indicating a greater fraction of the detected cluster and group members have experienced a burst of star formation in the recent past compared to their counterparts in the field. Our results suggest that gas-rich galaxies at high redshift experience a temporary increase in their star formation activity as they assemble into denser environments. Using HST-ACS imaging we find that disturbed morphologies are common among the 24um-detected cluster and group members and become more prevalent in regions of higher galaxy density. We conclude that mergers are the dominant triggering mechanism responsible for the enhanced star formation found in the Cl1604 groups, while a mix of harassment and mergers are likely driving the activity of the cluster galaxies.
description: 18 pages, 19 figures, submitted to ApJ
Nonlocal compensation of pure phase objects with entangled photons
Creators: name: Cialdi, S.
name: Brivio, D.
name: Tesio, E.
name: Paris, M. G. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We suggest and demonstrate a scheme for coherent nonlocal compensation of pure phase objects based on two-photon polarization and momentum entangled states. The insertion of a single phase object on one of the beams reduces the purity of the state and the amount of shared entanglement, whereas the original entanglement can be retrieved by adding a suitable phase object on the other beam. In our setup polarization and momentum entangled states are generated by spontaneous parametric downconversion and then purified using a programmable spatial light modulator, which may be also used to impose arbitrary space dependent phase functions to the beams. As a possible application, we suggest and demonstrate a quantum key distribution protocol based on nonlocal phase compensation.
description: 7 pages, 5 figures
Associated Press-NORC Center for Public Affairs Research Poll: Americans Recognize the Growing Problem of Opioid Addiction
Creators: name: Research, The Associated Press-NORC Center For Public Affairs
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Seriousness of drug problems in respondent's community (5); feelings about person struggling with using opioids without prescription (10); community doing too much/not enough to deal with problem of opioid addiction (7); social media use (4); messages about opioids on social media (4); drug use by respondent, loved one, or close friend (6).
Design and Experimental Proof-of-concept of a Façade-integrated Solar Thermal Venetian Blind with Heat Pipes
Creators: name: Haeringer, Simon Frederik
name: Denz, Paul-Rouven
name: Vongsingha, Puttakhun
name: Bueno, Bruno
name: Kuhn, Tilmann E.
name: Maurer, Christoph
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: Solar thermal venetian blinds (STVB) pursue the goal of reducing the primary energy demand of buildings with highly transparent façades during operation. They can provide solar control and daylighting functions and at the same time function as a solar thermal collector. A technical overview of STVB based on a design parameter space, which can be used as guideline for the design of STVB, is presented. It is then applied to develop a first actual-size test sample of STVB. The design principle, based on heat pipes and a switchable thermal coupling for heat transfer between the slats and a header tube, allows the STVB to be tiltable and retractable. The key characteristics of the built STVB test sample are: (1) integrated in a double skin façade element; (2) conventional absorber sheet with diagonally mounted heat pipe; (3) switchable thermal coupling with mechanism using springs and solenoids; (4) a multi-port header tube. Outdoor measurements have been carried out and are discussed, demonstrating the technical feasibility of the concept. In the end, design choices for architects and planners for the STVB system and possible installation processes are presented, and recommendations for further developments are assessed.
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
Analyses of Emperor Goose Survey Data and Harvest Potential
Creators: name: Dooley, Josh
name: Osnas, Erik
name: Zimmerman, Guthrie
Publisher: name: U.S. Fish and Wildlife Service
Year: 2016
Subjects: emperor goose

description: This report provides information for the U. S. Fish and Wildlife Service Division of Migratory Bird Management (USFWS DMBM), Alaska Migratory Bird Co-management Council (AMBCC; comprised of the USFWS, Alaska Department of Fish and Game [ADFG], and Alaska Native representatives), Pacific Flyway Council (PFC), and other entities interested in the management, monitoring, and biology of emperor geese. Sport and subsistence hunting of emperor geese was closed in 1986 and 1987, respectively, due to a population decline and conservation concerns. Since the middle 1980s, abundance has increased. During 2012 to 2015, proposals requesting a legalized harvest have been submitted by Alaska subsistence users through the AMBCC. Past proposals have not been approved because the 3-year average population management index from the spring staging aerial survey had not reached 80,000, as required in the Yukon Kuskokwim (YK) Delta Goose Management Plan and the PFC Emperor Goose Management Plan. In 2015, the management index was 81,875 and above the threshold for consideration of a legalized harvest. The management plan for emperor geese, including revision of monitoring programs, harvest strategy, and population objectives, is currently being updated. Thus, the USFWS DMBM Region 7 funded this work to: 1) evaluate emperor goose status, trends, and monitoring methods by conducting a comprehensive assessment of all available survey data; and 2) determine harvest potential of the population.
Assessing Self-shading Benefits of Twisting Towers
Creators: name: Jakica, Nebojsa
name: Kragh, Mikkel K
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: Over the last number of decades, tall building geometries have been shifting from rectangular boxes towards shapes that are defined through geometrical transformations such as twisting. While, from an aesthetical point of view, these twisting geometries make tall buildings appear contemporary and iconic, from an environmental point of view, however, the benefits are not as straightforward. They may vary significantly based on climatic loads and urban conditions, among others. This study aims to assess the self-shading benefits of twisting geometries by finding a correlation between floor-to-floor rotation and façade solar irradiation across climates, primarily focusing on hot ones, where self-shading is used as a passive solar design strategy. The study analysed three types of irradiation studies: Cumulative Annual Irradiation, Cumulative Harmful Irradiation during Cooling Design Day, and lastly, Solar Irradiation Self-Shading Balance. The latter compares beneficial and harmful solar irradiation during Hot and Cold Degree Days to quantify the impact of floor-to-floor rotation on optical and thermal performance. The study explored hundreds of possible scenarios across different climates and various floor-to-floor rotation angles, revealing a variety of positive, negative, and neutral situations. The study recommends careful examination of environmental conditions via a combination of multiple irradiation studies, particularly in the case of a smooth façade scenario.
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
title: “ΕΔΩ ΚΑΙ ΕΚΕΙ” Επανάχρηση κλωστηρίων Λαυρίου και διασύνδεση τους με τον τερματικό σταθμό του Προαστιακού Σιδηρόδρομου στα πλαίσια ενός ενοποιημένου αστικού χώρου
title: “HERE AND THERE” Adaptive reuse of Lavrio cotton mills building complex, and connection with the Lavrio Suburban Railway Terminal, within the context of an integrated urban space
Creators: name: Δεγλερης Ιασων-Αλβερτος
Publisher: name: Technical University of Crete
Year: 2021

description: Η παρούσα διπλωματική έχει σαν θέμα την επανάχρηση του ανενεργού βιομηχανικού κτηρίου, των κλωστηρίων Λαυρίου και τη δημιουργία του τερματικού σταθμού του Προαστιακού σιδηρόδρομου. Αφορμή για την επιλογή του θέματος αποτέλεσε μια σειρά ανακοινώσεων έργων υποδομών στο δήμο Λαυρεωτικής με προεξέχουσα τη σύνδεσή του σιδηροδρομικού δικτύου του Προαστιακού, έργο που θέτει τις βάσεις για μια στρατηγική βιώσιμης ανάπτυξης σε έναν τόπο με αξιόλογη ιστορική μνήμη. Η διπλωματική εργασία αναπτύσσεται σε δύο στάδια. Το πρώτο στάδιο υποστηρικτικού χαρακτήρα αποτελείται απο μια προτάση αστικής επεμβάσης που αποσκοπεί στην αποκατάσταση της “συνέχειας” στην περιοχή μελέτης, όπως και στον επαναπροσδιορισμό της αστικής κινητικότητας της πόλης, στα πλαίσια μιας βιώσιμης ανάπτυξης.  Ενώ το δεύτερο στάδιο κύριου χαρακτήρα αποτελείται απο την πρόταση της επανάχρησης των κλωστηρίων Λαυρίου, το σχεδιασμό του τερματικού σταθμού του Προαστιακού σιδηρόδρομου και τη σύνδεση μεταξύ τους. Ο νέος χώρος αντιμετωπίζεται ως ένας πολυσυλλεκτικός τόπος διαδρομών όπου αναπτύσσεται διάλογος ανάμεσα στο “εδώ” και στο “εκει”, ανάμεσα στο εφήμερο και στο μόνιμο. Η επανάχρηση των κλωστηρίων Λαυρίου αποσκοπεί στη μετατροπή τους σε ένα σύγχρονο τοπικό και υπερτοπικό κέντρο Περιβαλλοντικής έρευνας και εκπαίδευσης του δήμου Λαυρεωτικής το οποίο περιλαμβάνει λειτουργίες  που θα τροφοδοτούν με ζωή την πόλη του Λαυρίου. Η μνήμη διατηρείται μέσω της εκ νέου απόδοσης της ανθρώπινης παρουσίας και δραστηριότητας στο κτήριο.
The Effect of Active Galactic Nuclei on the Mid-Infrared Aromatic Features
Creators: name: Diamond-Stanic, Aleksandar M.
name: Rieke, George H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Spitzer measurements of the aromatic (also known as PAH) features for 35 Seyfert galaxies from the revised Shapley-Ames sample and find that the relative strengths of the features differ significantly from those observed in star-forming galaxies. Specifically, the features at 6.2, 7.7, and 8.6 micron are suppressed relative to the 11.3 micron feature in Seyferts. Furthermore, we find an anti-correlation between the L(7.7 micron)/L(11.3 micron) ratio and the strength of the rotational H2 (molecular hydrogen) emission, which traces shocked gas. This suggests that shocks suppress the short-wavelength features by modifying the structure of the aromatic molecules or destroying the smallest grains. Most Seyfert nuclei fall on the relationship between aromatic emission and [Ne II] emission for star-forming galaxies, indicating that aromatic-based estimates of the star-formation rate in AGN host galaxies are generally reasonable. For the outliers from this relationship, which have small L(7.7 micron)/L(11.3 micron) ratios and strong H2 emission, the 11.3 micron feature still provides a valid measure of the star-formation rate.
description: Accepted for publication in ApJ. 17 pages, 12 figures
On the spectrum and weakly effective operator for Dirichlet Laplacian in thin deformed tubes
Creators: name: de Oliveira, Cesar R.
name: Verri, Alessandra A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the Laplacian in deformed thin (bounded or unbounded) tubes in ?$\R^3$, i.e., tubular regions along a curve $r(s)$ whose cross sections are multiplied by an appropriate deformation function $h(s)> 0$. One the main requirements on $h(s)$ is that it has a single point of global maximum. We find the asymptotic behaviors of the eigenvalues and weakly effective operators as the diameters of the tubes tend to zero. It is shown that such behaviors are not influenced by some geometric features of the tube, such as curvature, torsion and twisting, and so a huge amount of different deformed tubes are asymptotically described by the same weakly effective operator.
Daylight transmittance through Expanded Metal shadings
Creators: name: Rico-Martinez, Jose Miguel
name: Brzezicki, Marcin
name: Ruiz-Mugica, Carlos Gabriel
name: Lech, Jakub
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: Due to the substantial need for energy efficiency, the daylight performance of building envelopes is a key issue in sustainable architecture. A frequently used shading system consists on static expanded metal meshes (EM). As a very prominent textural facade element, expanded metal is widely used as both a cladding and static shading device. One first aim is to provide a sufficient description of EM, including fabrication, possible usage and overall properties. This includes a set of parameters needed to control accurately the complex geometry of EM. Those parameters are also useful to get reliable 3-D computer models of EM. The main objective of this paper is to assess, describe and compare EM light transmittance performance as a shading device. We were specifically looking to determine the influence of parameters such as geometry, colour, position and direction of incoming light on the shading performance. The research is based on BSDF simulations via Radiance and experimental data provided at a previous laboratory stage. We have simulated and compared the performance of various EM shading devices for a south exposed façade in Madrid in most characteristic times of the year: solstices and equinoxes, as well as midday transmittance throughout the year.
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
Supplementary document for Frequency-tunable terahertz graphene laser enabled by pseudomagnetic fields in strain-engineered graphene - 4903949.pdf
Creators: name: Sun, Hao
name: Qi, Zhipeng
name: Kim, Youngmin
name: Luo, Manlin
name: Yang, Bo
name: Nam, Donguk
Publisher: name: Optica Publishing Group
Year: 2021
Subjects: Uncategorized

description: Supplement 1
A Novel Approach to Shape Memory Alloys Applied to Passive Adaptive Shading Systems
Creators: name: Vercesi, Lorenzo
name: Speroni, Alberto
name: Mainini, Andrea Giovanni
name: Poli, Tiziana
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: A shading device for façade application was developed by combining twisting cylindrical shading elements with the smart use of shape-memory alloy (SMA) components. These allow a dynamic behaviour of a shading device, which does not require electrical motors or manual activation, nor sophisticated electronic controls. The technical development of the system involved research of cylindrical shading geometries, which can transition from straight to hourglass configuration, given a 180° rotation, with limited mechanical movement. This is induced by the stroke of a SMA spring, which functions as both actuator and sensor. Its design is tailored to achieve a passive adaptive component that can be activated under set temperature stimuli, caused by incident solar radiation on a façade. A combination of computer simulations and physical tests were carried out to assess the optimal conditions of the SMA spring activation in a temperate climate condition (Cfa to the Koppen-Geiger classification), correlating transition temperature (50°C), incident solar radiation (>300W/m2 ) and the forces required to operate the cylinders. In parallel, an experimental apparatus was developed to validate the concept on a geometrical point of view, and to ensure its constraints were compatible with a SMA spring control system.
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
Doctoral thesis recital (collaborative piano (lecture))
Creators: name: Park, Dia Sohyun
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Poulenc, Francis, 1899-1963. Dialogues des Carmélites
Poulenc, Francis, 1899-1963. Sonatas (Violin and piano)
Music--Performance
Musical accompaniment

description: [Lecture on two genres of music used by Francis Poulenc (Sonate pour violon et piano and Dialogues des Carmélites) and how collaborative pianists can approach them]
Spin-triplet Supercurrent through Inhomogeneous Ferromagnetic Trilayers
Creators: name: Alidoust, Mohammad
name: Linder, Jacob
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by a recent experiment [J. W. A. Robinson, J. D. S. Witt and M. G. Blamire, Science, \textbf{329}, 5987 (2010)], we here study the possibility of establishing a long-range spin-triplet supercurrent through an inhomogeneous ferromagnetic region consisting of a Ho$\mid$Co$\mid$Ho trilayer sandwiched between two conventional s-wave superconductors. We utilize a full numerical solution in the diffusive regime of transport and study the behavior of the supercurrent for various experimentally relevant configurations of the ferromagnetic trilayer. We obtain qualitatively very good agreement with experimental data regarding the behavior of the supercurrent as a function of the width of the Co-layer, $L_\text{Co}$. Moreover, we find a synthesis of 0-$π$ oscillations with superimposed rapid oscillations when varying the width of the Ho-layer which pertain specifically to the spiral magnetization texture in Ho. We are not able to reproduce the anomalous peaks in the supercurrent observed experimentally in this regime, but note that the results obtained are quite sensitive to the exact magnetization profile in the Ho-layers, which could be the reason for the discrepancy between our model and the experimental reported data for this particular aspect. We also investigate the supercurrent in a system where the intrinsically inhomogeneous Ho ferromagnets are replaced with domain-wall ferromagnets, and find similar behavior as in the Ho$\mid$Co$\mid$Ho case. Furthermore, we propose a novel type of magnetic Josephson junction including only a domain-wall ferromagnet and a homogeneous ferromagnetic layer, which in addition to simplicity regarding the magnetization profile also offers a tunable long-range spin-triplet supercurrent. Finally, we discuss some experimental aspects of our findings.
description: 7 pages, 7 figures. Submitted to Physical Review
Toward cognitive vector network analyzers for conducting wireless stimulus-response measurements in open-area environments
Creators: name: White, Robert Douglas
Publisher: name: University of British Columbia
Year: 2015

description: Vector network analyzers (VNAs) are often used to measure antenna performance, channel response, and shielding effectiveness in open-area environments. In such applications, external interference from other users may sporadically occupy portions of the frequency band of interest and thus compromise the integrity of the measurements. The simple strategies for avoiding such interference that are commonly employed may be ineffective because: 1) clear channels within the band may not be available, 2) it may be difficult to find suitable antennas for use in adjacent clear bands, 3) the other users in the band may be uncooperative, 4) the interference encountered in the band may be intolerable even during off-peak hours or 5) it may not be possible or convenient to move to a different measurement location. Here, we show that the reliability and accuracy of VNA-based wireless measurements performed under such circumstances can be significantly improved by applying cognitive radio concepts where uncooperative wireless systems are cast as primary users and the VNA is cast as the secondary user. For the case of long-burst interference, i.e., scenarios dominated by voice and video transmissions that are much longer than the VNA measurement dwell time, we propose and demonstrate a scheme that uses carrier sensing to: 1) avoid collisions between VNA and primary user transmissions and 2) identify and reject corrupted measurements. For the case of short-burst interference, i.e., scenarios dominated by data packet transmissions that are much shorter than the VNA measurement dwell time, we show that identification and rejection of corrupted measurements is more difficult but can be accomplished by modifying the interference-aware VNA to apply robust estimation to the results. The main limitation of the second scheme is the time required to collect the additional measurement data required. In both cases, re-purposing existing hardware within the VNA and making relatively minor enhancements to the firmware would both simplify implementation and significantly decrease the data collection time. Both schemes represent an important step toward realizing a fully cognitive VNA that is capable of sensing its environment and configuring itself to conduct interference-free wireless measurements as quickly and effectively as possible.
The politeia : a defence of literary constitutionalism
Creators: name: Dodd, Mary Alexandra
Publisher: name: The University of St Andrews
Year: 2023
Subjects: subject: Constitutionalism
subject: Law and literature
subject: Aristotle
subject: Politics
subject: Hobbes
subject: Leviathan
subject: Milton
subject: History of Britain
subject: Politeia
subject: Constitution of the Athenians
subject: Plato
subject: Republic
subject: Harrington
subject: Commonwealth of Oceana
subject: Constituent power
subject: Old Oligarch
subject: Pseudo-Xenophon
subject: English civil law
subject: K3165.D73
subject: Aristotle. Athēnaiōn politeia
subject: Hobbes, Thomas, 1588-1679. Leviathan
subject: Constitutional history
subject: Law and literature

description: The principal endeavour of this thesis is to advance our understanding of constitutionalism beyond the mechanics codification, to embrace a textually discursive approach to constitutionalism which takes into account all aspects of living in human socio-political aggregation akin to the ancient politeia genre. My purpose is to demonstrate how authors producing works which write polities must be understood as actors engaged in a specifically literary mode of constitutionalism. I use two texts which have been overrepresented in political theory scholarship on constitutionalism – Aristotle’s Politics and Thomas Hobbes’s Leviathan – to create a comparison with the textual politeia’s approach, demonstrating the limitations of these canonical texts’ methods. I then apply the politeia as an analytical lens to texts produced during the period of the British Interregnum. It is my argument that the two branches of the politeia genre which I identify and delineate – namely empirical and philosophical politeiai, represented in this thesis through examinations of (1) the Old Oligarch’s Constitution of the Athenians and John Milton’s History of Britain, and (2) Plato’s Republic and James Harrington’s The Commonwealth of Oceana, respectively – enable me to foreground different ways to reflect on constitutions. Therefore, those authors must be understood and credited as committed constitutional engagé(e)s, participating in constitutionalism through written performance. This thesis uses the results of these investigations to call for the acknowledgement of efforts in writing polities as committed, credible interventions in constitutionalism. This is further emphasised by the concluding commentary on current constituent moments, which illustrates how an understanding of literary constitutionalism enables us to read the articulation of these moments and efforts in a far more holistic way than traditional approaches to constitutional practice.
SUG'URTА TАSHKILОTLАRIDА NАZОRАT ISHLАRINI TАSHKIL ETISH
Creators: name: Sаmаrqаnd iqtisоdiуоt vа service instituti Tаlаbа. Sауitxоnоvа Muxlisа Ilуоsxоn qizi Fаn о'qituvchi. Meliуev  Аzimjоn Murоdullо о'g'li
Publisher: name: Zenodo
Year: 2025

description: Ushbu mаqоlаdа sug‘urtа tаshkilоtlаridа nаzоrаt tizimining mоhiуаti, аsоsiу уо‘nаlishlаri, tаshkil etish usullаri vа xаlqаrо tаjribаlаr kо‘rib chiqilаdi. Shuningdek mаqоlаdа sug‘urtа tаshkilоtlаridа nаzоrаt ishlаrini sаmаrаli tаshkil etish уо’llаrni vа mаzkur mаqsаddа уurtimizdа bаjаrilауоtgаn islоhаtlаr kо’rib chiqilgаn.

Kаlit sо’zlаr: sug‘urtа sektоri, xаlqаrо stаndаrtlаr, Sug‘urtа xizmаtlаri, mоliуа tizimi, Ichki аudit, Risklаrni bоshqаrish tizimi.
Additive Manufacturing of Ceramic Components for Façade Construction
Creators: name: Cruz, Paulo J.S.
name: Figueiredo, Bruno
name: Carvalho, João
name: Campos, Tatiana
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: Additive Manufacturing (AM) opens new fields of research and development in the architectural design and construction industry, enabling a geometric freedom that can result in the design of components with specific requirements and multifunctional behaviours. This work explores the integration of digital design tools and AM extrusion processes on the production of ceramic architectural components for façade construction, reshaping and expanding the boundaries of what is possible to achieve with masonry construction in a wide range of applications (opaque walls, ventilated sunscreens, and shading systems). Several stoneware prototypes were developed, encompassing different challenges such as the morphology customisation, the versatility of use, the exploitation of the maximum degree of curvature, and the optimisation of structural patterns.
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
Parallel electric field generation by Alfven wave turbulence
Creators: name: Bian, N. H.
name: Kontar, E. P.
name: Brown, J. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: {This work aims to investigate the spectral structure of the parallel electric field generated by strong anisotropic and balanced Alfvenic turbulence in relation with the problem of electron acceleration from the thermal population in solar flare plasma conditions.} {We consider anisotropic Alfvenic fluctuations in the presence of a strong background magnetic field. Exploiting this anisotropy, a set of reduced equations governing non-linear, two-fluid plasma dynamics is derived. The low-$β$ limit of this model is used to follow the turbulent cascade of the energy resulting from the non-linear interaction between kinetic Alfven waves, from the large magnetohydrodynamics (MHD) scales with $k_{\perp}ρ_{s}\ll 1$ down to the small "kinetic" scales with $k_{\perp}ρ_{s} \gg 1$, $ρ_{s}$ being the ion sound gyroradius.} {Scaling relations are obtained for the magnitude of the turbulent electromagnetic fluctuations, as a function of $k_{\perp}$ and $k_{\parallel}$, showing that the electric field develops a component parallel to the magnetic field at large MHD scales.} {The spectrum we derive for the parallel electric field fluctuations can be effectively used to model stochastic resonant acceleration and heating of electrons by Alfven waves in solar flare plasma conditions}
Editorial Vol 8 No 1 (2020)
Creators: name: JFDE, Editor
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: Welcome to this new issue of our Journal of Façade Design and Engineering. We are very pleased to be able to release a new issue under the current global circumstances, to keep supporting research and the engineering of new technologies, materials, and methods for the design of our envelopes. This special issue features a wide range of topics, stemming from research activities of members from the European Façade Network (EFN). The EFN seeks to advance and promote façade design and engineering at a European level and beyond, through inclusive collaboration between European Research centres, Universities, and alumni, resulting in skills and knowledge transfer in education, research, and development. Consequently, this special issue showcases a selection of research experiences presented at two scientific events sponsored by the EFN. The first scientific event was the Conference “FACADES19” held in Lisbon on November 22nd, 2019, which was organised by Dr. Daniel Aelenei from the Department of Civil Engineering at NOVA School of Science and Technology. The second scientific event refers to a special “EFN session“ hosted at the Façade Tectonics 2020 World Congress, held online in August 2020. This session within the larger congress was coordinated by Daniel Artzmann, Mikkel Kragh, Annalisa Andaloro, and Ulrich Knaack. The selection of the papers from both events was based on their relevance to the scope of our journal and went through the double-blind peer review process of the JFDE. We thank all supporters and contributors who made these events a success and especially the authors of the articles compiled in this issue. The Editors in Chief, Ulrich Knaack Tillmann Klein
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
Leveraging the African clawed frog (Xenopus laevis) for Understanding Stage- and Sex-Specific Toxicokinetics and Effects of PFAS
Creators: name: Scherer, Meredith Norris
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Toxicology (incl. clinical toxicology)
Freshwater ecology

description: Per- and polyfluoroalkyl substances (PFAS) are a group of emerging global contaminants used in a variety of industrial processes and consumer products, such as personal care products and fast-food wrappers. However, due to their carbon-fluorine bonds, these chemicals resist degradation and persist in the environment. PFAS toxicity is driven by a compound’s functional group and chain length with perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), perfluorooctanoic acid (PFOA), and hexafluoropropylene oxide dimer acid (GenX) being of focal concern due to their toxicity to wildlife and presence in the environment. Despite growing concern regarding these contaminants, inadequate attention has been given to evaluating what organismal characteristics influence uptake and depuration of these chemicals, such as life stage and sex. Xenopus laevis tadpoles are a useful model to assess the influence of sex on PFAS kinetics since they have a life history that includes a gill to lung transition. Previous studies have shown that air-breathing organisms depurate PFAS more slowly than water-breathing organisms, but this relationship has never been directly tested. Sex has been shown to be an important factor in the depuration of PFOA for rats, with female rats depurating PFOA in four hours while males depurate in four days. The early portion of bioaccumulation curves are also understudied even though tadpoles accumulate PFAS rapidly, reaching steady state within 48 hours of exposure. Xenopus laevis are used to study multiple endpoints for endocrine disrupting chemicals including PFAS. Despite this, toxicity reference values (TRVs) have not been described for the uptake and elimination of PFAS using X. laevis. To address these gaps in knowledge, I first developed TRVs for X. laevis tadpoles exposed to PFOA throughout metamorphosis and evaluated the influence of sex on phenotypic endpoints. Results showed a no observed effect concentration (NOEC) of 11.1 ppm for body mass at day 14 and no effect of sex on apical endpoints. Next, I described the early bioaccumulation of four PFAS with differing structure (chain lengths and functional groups). PFOS was the only chemical to bioaccumulate with a log bioconcentration factor (BCF) at 10 and 1,000 ppm of 1.33 and 1.18, respectively. PFHxS, PFOA, and GenX had BCFs less than 0. Finally, I examined the impact of life-stage and sex on X. laevis tadpole and juvenile depuration rates. Larval tadpoles depurated four times faster than juveniles, indicating a significant effect of life stage on elimination rates. Sex had no influence on elimination rates. These are the first studies conducted evaluating the significance of life stage and sex in toxicokinetics of PFAS in amphibians.
Twisted extensions of Fermat's Last Theorem
Creators: name: Bruni, Carmen Anthony
Publisher: name: University of British Columbia
Year: 2015

description: Let x, y, z, n, α ∈ ℤ with α ≥ 1, p and n ≥ 5 primes. In 2011, Michael Bennett, Florian Luca and Jamie Mulholland showed that the equation involving a twisted sum of cubes [equation omitted] has no pairwise coprime nonzero integer solutions p ≥ 5,n ≥ p²p and p ∉ S where S is the set of primes q for which there exists an elliptic curve of conductor NE ∈ {18q,36q,72q} with at least one nontrivial rational 2-torsion point. In this dissertation, I present a solution that extends the result to include a subset of the primes in S; those q ∈ S for which all curves with conductor NE ∈ {18q,36q,72q} with nontrivial rational 2-torsion have discriminants not of the form ℓ² or -3m² with ℓ,m ∈ ℤ. Using a similar approach, I will classify certain integer solutions to the equation of a twisted sum of fifth powers [equation omitted] which in part generalizes work done from Billerey and Dieulefait in 2009. I will also discuss limitations of the methods for these equations and as they extend to further prime exponents.
Involutive distributions and dynamical systems of second-order type
Creators: name: Mestdag, T.
name: Crampin, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34A26, 53B05, 53C13, 58A30

description: We investigate the existence of coordinate transformations which bring a given vector field on a manifold equipped with an involutive distribution into the form of a second-order differential equation field with parameters. We define associated connections and we give a coordinate-independent criterion for determining whether the vector field is of quadratic type. Further, we investigate the underlying global bundle structure of the manifold under consideration, induced by the vector field and the involutive distribution.
description: 18 pages
Changing the Criminal Justice System Response to Sexual Assault: An Empirical Study of a Participatory Action Research Project
Creators: name: Campbell, Rebecca
name: Fehler-Cabral, Giannina
name: Pierce, Steven J.
name: Sharma, Dhruv B.
name: Shaw, Jessica
name: Horsford, Sheena
name: Feeney, Hannah
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: In jurisdictions throughout the United States, thousands of sexual assault kits (SAKs; also known as a “rape kits”) have not been submitted by the police for forensic DNA testing. DNA evidence may be helpful to sexual assault investigations and prosecutions by identifying perpetrators, revealing serial offenders through DNA matches across cases, and exonerating those who have been wrongly accused. This paper describes a longitudinal action research project conducted in Detroit, Michigan after that city discovered approximately 11,000 untested sexual assault kits in a police department storage facility. We conducted a root cause analysis to examine individual, organizational, community, and societal factors that contributed to the development of the rape kit backlog in Detroit. Based on those findings, we implemented and evaluated structural changes to increase staffing, promote kit testing, and retrain police and prosecutors so that cases could be reopened for investigation and prosecution. As we conducted this work, we also studied how this action research project impacted the Detroit criminal justice system. Participating in this project changed stakeholders’ attitudes about the utility of research to address community problems, the usefulness of DNA evidence in sexual assault cases, and the impact of trauma on survivors. The results led to new protocols for SAK testing and police investigations, and new state legislation mandating SAK forensic DNA testing.
Effects of a Vertical Green Façade on the Thermal Performance and Cooling Demand
Creators: name: Nguyen, Phan Anh
name: Van Bokel, Regina
name: Van Den Dobbelsteen, Andy
Publisher: name: Journal of Facade Design and Engineering
Year: 2019

description: Traditional architecture has often applied greenery in the design to improve the thermal performance of indoor spaces. Such a bioclimatic approach is not often seen in the contemporary tube houses of Vietnam. Vietnamese architects recently started to focus more on greenery solutions for housing projects. However, the quantitative effects of plants on the building performance has not yet been investigated in Vietnam. This paper reports on an experiment to quantify the benefits of a vertical greening system for thermal performance and energy saving. A typical tube house in Hanoi was selected and two similar rooms were monitored during July and August, 2018. One of the rooms’ façades was covered by the climbing plant Bougainvillea. Outdoor and indoor temperature and energy for air-conditioning were measured for the two rooms to quantify the effect of the greenery on the existing aluminium shading device and a bare window. Results for the green façade showed that the difference between outdoor and indoor temperature can be as high as 8°C. In addition, the climbing plants helped to reduce the indoor temperature by around 1°C and thus cooling energy was saved by up to 35%.
description: Journal of Facade Design and Engineering, Vol. 7 No. 2 (2019): Facade Design and Engineering
Implicit-explicit Runge-Kutta schemes and applications to hyperbolic systems with relaxation
Creators: name: Pareschi, L.
name: Russo, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 65C20, 82D25

description: We consider new implicit-explicit (IMEX) Runge-Kutta methods for hyperbolic systems of conservation laws with stiff relaxation terms. The explicit part is treated by a strong-stability-preserving (SSP) scheme, and the implicit part is treated by an L-stable diagonally implicit Runge-Kutta methods (DIRK). The schemes proposed are asymptotic preserving (AP) in the zero relaxation limit. High accuracy in space is obtained by Weighted Essentially Non Oscillatory (WENO) reconstruction. After a description of the mathematical properties of the schemes, several applications will be presented.
The relativistic kinetic dispersion relation: Comparison of the relativistic Bhatnagar-Gross-Krook model and Grad's 14-moment expansion
Creators: name: Takamoto, Makoto
name: Inutsuka, Shu-ichiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper, we study the Cauchy problem of the linearized kinetic equations for the models of Marle and Anderson-Witting, and compare these dispersion relations with the 14-moment theory. First, we propose a modification of the Marle model to improve the resultant transport coefficients in accord with those obtained by the full Boltzmann equation. Using the modified Marle model and Anderson-Witting model, we calculate dispersion relations that are kinetically correct within the validity of the BGK approximation. The 14-moment theory that includes the time derivative of dissipation currents has causal structure, in contrast to the acausal first-order Chapman-Enskog approximation. However, the dispersion relation of the 14-moment theory does not accurately describe the result of the kinetic equation. Thus, our calculation indicates that keeping these second-order terms does not simply correspond to improving the physical description of the relativistic hydrodynamics.
description: 20 pages, 22 figures, accepted for publication in Physica A
Small-scale Field Study of Window Films’ Impact on Daylight Availability under Clear Sky Conditions
Creators: name: Pereira, Júlia Oliveira
name: Gomes, Maria Glória
name: Rodrigues, António Moret
name: Teixeira, Henriqueta
name: Almeida, Manuela
Publisher: name: Journal of Facade Design and Engineering
Year: 2020

description: Daylight illuminance levels and their spatial distribution are important design elements to achieve indoor visual comfort conditions and sustainability in buildings during the operation stage. While a proper daylighting scheme increases the efficiency of the building, the excessive use of glazed surfaces can contribute to thermal and visual discomfort, hence increasing the cooling demand and use of artificial lighting. Solar control film (SCF) is a self-adhesive thin film that can be applied on glazing systems of existing buildings for retrofitting purposes to modify thermal and optical properties of the glass substrate. This paper analyses experimentally the impact of single glazing with different SCFs on the indoor illuminance levels and respective distribution on horizontal work plane by comparing the measured absolute values and the useful daylight illuminance metric. Field experiments using a small scale model with the glazing oriented to the south, in Lisbon, were performed for a 6 mm clear glass and four different SCFs applied on the external surface of the glass, under clear sky conditions during summer and winter solstice at 9h00, 12h00, and 15h00. The results show that all SCFs reduced the indoor illuminance, which demonstrate their potential for glazing refurbishment when indoor visual discomfort occurs in buildings.
description: Journal of Facade Design and Engineering, Vol. 8 No. 1 (2020): Special Issue: European Perspectives
Improving the representativeness of non-probability samples: A case study of two web surveys
Creators: name: Slavec, Ana
Publisher: name: Zenodo
Year: 2021
Subjects: web surveys
sampling
representativness
COVID-19 protective measures
COVID-19 vaccination

description: Web surveys, even for purposes of scientific data collection, are commonly based on non-probability samples as this saves costs and other resources. Unlike probability sampling procedures, non-probability sampling does not enable the generalisation of results from sample to the population. Since certain users are more likely to volunteer to participate, non-probability samples often have a certain selection bias. The representativeness of non-probability sampling designs can be improved with measures such as trying to spread the sample recruitment as broadly as possible by combining several recruitment channels. This contribution presents the case study of two web surveys in Slovenia that were based on large convenience samples, first on the topic of COVID-19 protective measures and the second on topic of COVID-19 vaccination. In both cases, we run a parallel survey where the same questionnaire was administered to members of an online market research panel that is representative of the Slovenian population. Based on the comparison of results of the two convenience samples to the respective panel samples we estimate how biased they are and discuss possible approaches to improve their representativeness.
description: The author acknowledges the support of the Slovenian Research Agency for funding the project using questionnaires to measure attitudes and behaviours of building users (Z5-1879), the European Commission for funding the InnoRenew project [Grant Agreement #739574] under the Horizon 2020 Widespread-Teaming program, and the Republic of Slovenia (investment funding from the Republic of Slovenia and the European Regional Development Fund).
Orbital evolution of the Carina dwarf galaxy and self-consistent star formation history determination
Creators: name: Pasetto, S.
name: Grebel, E. K.
name: Berczik, P.
name: Chiosi, C.
name: Spurzem, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new study of the evolution of the Carina dwarf galaxy that includes a simultaneous derivation of its orbit and star formation history. The structure of the galaxy is constrained through orbital parameters derived from the observed distance, proper motions, radial velocity and star formation history. The different orbits admitted by the large proper motion errors are investigated in relation to the tidal force exerted by an external potential representing the Milky Way (MW). Our analysis is performed with the aid of fully consistent N-body simulations that are able to follow the dynamics and the stellar evolution of the dwarf system in order to determine self-consistently the star formation history of Carina. We find a star formation history characterized by several bursts, partially matching the observational expectation. We find also compatible results between dynamical projected quantities and the observational constraints. The possibility of a past interaction between Carina and the Magellanic Clouds is also separately considered and deemed unlikely.
description: Accepted in A&A
Geometrical Penrose Tilings are characterized by their 1-atlas
Creators: name: Fernique, Thomas
name: Lutfalla, Victor
Publisher: name: arXiv
Year: 2022
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Rhombus Penrose tilings are tilings of the plane by two decorated rhombi such that the decoration match at the junction between two tiles (like in a jigsaw puzzle). In dynamical terms, they form a tiling space of finite type. If we remove the decorations, we get, by definition, a sofic tiling space that we here call geometrical Penrose tilings. Here, we show how to compute the patterns of a given size which appear in these tilings by two different method: one based on the substitutive structure of the Penrose tilings and the other on their definition by the cut and projection method. We use this to prove that the geometrical Penrose tilings are characterized by a small set of patterns called vertex-atlas, i.e., they form a tiling space of finite type. Though considered as folk, no complete proof of this result has been published, to our knowledge.