cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Cart. 187 (11 H 72), f. 0009v
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Archives départementales de la Côte-d'Or, Cart. 187 (11 H 72), f. 0009v, Numérisation en mode image.
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome III, Archives départementales de la Côte-d'Or, Cart. 187 (11 H 72), f. 0009v, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
A Flattened Protostellar Envelope in Absorption around L1157
Creators: name: Looney, Leslie
name: Tobin, John
name: Kwon, Woojin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Deep Spitzer IRAC images of L1157 reveal many of the details of the outflow and the circumstellar environment of this Class 0 protostar. In IRAC band 4, 8 microns, there is a flattened structure seen in absorption against the background emission. The structure is perpendicular to the outflow and is extended to a diameter of 2 arcminutes. This structure is the first clear detection of a flattened circumstellar envelope or pseudo-disk around a Class 0 protostar. Such a flattened morphology is an expected outcome for many collapse theories that include magnetic fields or rotation. We construct an extinction model for a power-law density profile, but we do not constrain the density power-law index.
description: ApJL accepted
Quantum-Classical Computation of Schwinger Model Dynamics using Quantum Computers
Creators: name: Klco, N.
name: Dumitrescu, E. F.
name: McCaskey, A. J.
name: Morris, T. D.
name: Pooser, R. C.
name: Sanz, M.
name: Solano, E.
name: Lougovski, P.
name: Savage, M. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a quantum-classical algorithm to study the dynamics of the two-spatial-site Schwinger model on IBM's quantum computers. Using rotational symmetries, total charge, and parity, the number of qubits needed to perform computation is reduced by a factor of $\sim 5$, removing exponentially-large unphysical sectors from the Hilbert space. Our work opens an avenue for exploration of other lattice quantum field theories, such as quantum chromodynamics, where classical computation is used to find symmetry sectors in which the quantum computer evaluates the dynamics of quantum fluctuations.
description: 5 pages, 4 figures, 23 pages supplemental, 8 figures supplemental
Firesafe: Designing for Fire-Resilient Communities in the American West
Creators: name: Baitch, Brenden
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: The perception that wildfires are completely preventable has caused many structures and communities to be built in locations that will inevitably experience an uncontrollable fire event, risking human lives and infrastructure. Modification of built environments into fire-adapted communities has been explored in this thesis, through multiple strategies. Central to this analysis is the idea that sustainable human developments could adopt a form of biomimicry and indigenous design informed by the adaptions of plants, animals, and native groups that endure and even thrive with regular cycles of fire. This possibility has been assessed through the scope of fire adaptation strategies available to architects, builders, and urban planners. Design decisions including the strategic placement of buildings in relation to topography, wind, vegetation type, and fuel loads has been considered. Additionally, other mechanisms for adaptation have been assessed, such as fire-retardant building materials, building form, landscaping, and the density of built form on the scale of single homes, and broader communities. The thesis identifies a typical building site, the adjacent community, the potential threats to landscape and buildings posed by wildfire, and then explores design approaches aimed at improving fire adaptability. These factors have been considered and assessed on a qualitative level and offer new recommendations for building within fire zones. These design ideas and principles can then be applied to a variety of landscapes wherein the wildfire is inevitable, thereby exploring how fire-adapted communities may be built to sustain wildfires through a myriad of methods within a range of regions.
Wettability of molten Fe-Si-B alloy on graphite, Al2O3, and h-BN substrates
Creators: name: Jianmeng Jiao
name: Safarian, Jafar
name: Tangstad, Merete
Publisher: name: Zenodo
Year: 2019
Subjects: wettability, phase change material, graphite, silicon carbide, hexagonal boron nitride.

description: Fe-26.38Si-9.35B alloy (numbers in mass %) is of interest as a phase change material (PCM) because it exhibits high thermal conductivity, moderate melting point, high latent heat, and low cost. This study offers valuable insights into the contact angles of molten eutectic Fe-26.38Si-9.35B alloy on various substrates using the sessile drop method. Moreover, the reactivity has been investigated by examining the cross-sections between Fe-26.38Si-9.35B droplets and substrates with a scanning electron microscope (SEM). The purpose of this study is to find a proper refractory material for the new Fe-26.38Si-9.35B PCM. These wetting tests confirm that the contact angle between molten Fe-26.38Si-9.35B and Al2O3 is about 112o. Molten Fe-26.38Si-9.35B spreads over the graphite plate and the contact angle is estimated to be 31o and a continuous silicon carbide (SiC) layer is formed between the molten Fe-26.38Si-9.35B and graphite. Interestingly, three melting/solidification cycles have been performed on hexagonal boron nitride (h-BN) substrate at the temperature range of 1100-1550 oC. The contact angle is observed to be 142o in the first cycle, 105o in the second cycle, and 130o in the third cycle. This study contributes to our understanding of the wettability properties of molten Fe-26.38Si-9.35B alloy on various substrates.
Conflicting Objectives in Regulating the Automobile
Creators: name: Lave, Lester B.
Publisher: name: Carnegie Mellon University
Year: 1972
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Federal regulation of automobile safety, emissions, and fuel economy is contradictory. Safety equipment and emissions control reduce fuel economy; reducing the size of automobiles is estimated to increase fatalities by 1400 a year and significantly increase serious injuries. These secondary impacts of regulation roughly double the estimated costs of achieving the individual goals. In formulating regulations, these contradictions must be taken into account, along with the effects on the price of the vehicle and its attractiveness to buyers.
title: A Method for the Large Scale Purification of HCG (Human Chorionic Gonadotropin) from the Urine of Pregnant Women
Creators: name: Kuo, Chun-Shyan
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1988

description: A large scale preparation of human chorionic gonadotropin (HCG) from the urine of pregnant women was accomplished by using kaolin adsorption, NH4OH extraction and DEAE-cellulose ion exchange. A recovery about 81% of HCG and a specific activity in the 2,000-3,000 IU/mg range was achieved using this purification method.

Two HCG activity fractions, HCG I & HCG II, were isolated from DEAE-cellulose chromatography by a stepwise sodium chloride gradient elution. HCG I was eluted at 0.01-0.02 M NaCl while HCG II was eluted at 0.12-0.02 M NaCl.

The differences between HCG I and HCG II have been studied. The results show that HCG I has a molecular weight which is smaller than that of the native HCG and probably represents an intermediate in HCG metabolism which is excreted in the urine. The molecular weight of HCG II is estimated to be 63,000 ± 6,000 by gel filtration on a Sephadex G-200 column and 36,000 ± 3,000 by sucrose density gradient centrifugation. The estimate of molecular weight by gel filtration is inaccurate due to size changes which occur in glycoproteins, such as HCG, during the separation.
Virtual Mediums of Storytelling in Lighting Design: An Exploration of Plamondon and Cocciante’s Notre-Dame de Paris
Creators: name: Becker, Sydney L
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: The following thesis will explore and reflect upon the process of lighting design for Luc Plamondon and Richard Cocciante’s Notre-Dame de Paris, from the novel by Victor Hugo. It will cover the whole design process, from reading the script through final design proposal. Beyond reflecting on the traditional design process and its trials and tribulations, time will also be spent exploring how moving to an entirely online format affected and changed the process as well as the presentation format of the final product.
Localization length exponent in two models of quantum Hall plateau transitions
Creators: name: Zhu, Qiong
name: Wu, Peng
name: Bhatt, R. N.
name: Wan, Xin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Motivated by the recent numerical studies on the Chalker-Coddington network model that found a larger-than-expected critical exponent of the localization length characterizing the integer quantum Hall plateau transitions, we revisited the exponent calculation in the continuum model and in the lattice model, both projected to the lowest Landau level or subband. Combining scaling results with or without the corrections of an irrelevant length scale, we obtain $ν= 2.48 \pm 0.02$, which is larger but still consistent with the earlier results in the two models, unlike what was found recently in the network model. The scaling of the total number of conducting states, as determined by the Chern number calculation, is accompanied by an effective irrelevant length scale exponent $y = 4.3$ in the lattice model, indicating that the irrelevant perturbations are insignificant in the topology number calculation.
description: 10 pages, 8 figures
Threshold Effects And Perturbative Unification
Creators: name: Bastero-Gil, M.
name: Manías, V.
name: Pérez-Mercader, J.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the effect of the renormalization procedure in the computation of the unification point for running coupling constants. We explore the effects of threshold--crossing on the $β$--functions. We compute the running of the coupling constants of the Standard Model, between $m_Z$ and $M_P$, using a mass dependent subtraction procedure, and then compare the results with $\bar{MS}$, and with the $θ$-- function approximation. We also do this for the Minimal Supersymmetric extension of the Standard Model. In the latter, the bounds on susy masses that one obtains by requiring perturbative unification are dependent, to some extent, on the procedure.
description: 22 pages, REVTEX-2.1, 6 Post-Script figures are included
A Web-based System for Observing and Analyzing Computer Mediated Communications
Creators: name: May, Madeth
name: George, Sébastien
name: Prévôt, Patrick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Tracking data of user's activities resulting from Computer Mediated Communication (CMC) tools (forum, chat, etc.) is often carried out in an ad-hoc manner, which either confines the reusability of data in different purposes or makes data exploitation difficult. Our research works are biased toward methodological challenges involved in designing and developing a generic system for tracking user's activities while interacting with asynchronous communication tools like discussion forums. We present in this paper, an approach for building a Web-based system for observing and analyzing user activity on any type of discussion forums.
DISSONANT FORMS: LANDSCAPE, NATURE-LOVE, and ART
Creators: name: Benoit, Taylor F
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: As artists continue the long and storied lineage of Landscape, are there aesthetic responsibilities that come with representing the forces that afford you the capacity to do so? As we delineate spaces into places, endless interconnectivity into knowable “systems”, and living matter into thing based taxonomies, who do these delineations serve and with what intentions do we proceed? My studio art practice explores what it means to give form to our Former—the Former being that from which we came, the here and now, our explicit ecological reality, the stuff of what we call nature. In this way, the Former consists of all the powers at play that unthinkingly formed the vital life-forces that afford us our perceptive and creative capacities, and in doing so, precede us chronologically. The primary questions my creative practice posits are therefore: what does it mean to give form to our Former through creative applications? In doing so, is it appropriate to assume that we are returning the favor?
Universal Mandelbrot Set as a Model of Phase Transition Theory
Creators: name: Morozov, Andrey
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Complex Variables (math.CV)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The study of Mandelbrot Sets (MS) is a promising new approach to the phase transition theory. We suggest two improvements which drastically simplify the construction of MS. They could be used to modify the existing computer programs so that they start building MS properly not only for the simplest families. This allows us to add one more parameter to the base function of MS and demonstrate that this is not enough to make the phase diagram connected
description: 5 pages, 3 figures
Deformation mechanisms in high entropy alloys: a minireview of short-range order effects
Creators: name: Rasooli, Novin
name: Chen, Wei
name: Daly, Matthew
Publisher: name: University of Illinois at Chicago
Year: 2024
Subjects: classificationCode: 4016
subject: Materials engineering
subject: FOS: Materials engineering
classificationCode: 34
subject: Chemical sciences
subject: FOS: Chemical sciences
classificationCode: 40
subject: Engineering
classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: The complex atomic scale structure of high entropy alloys presents new opportunities to expand the deformation theories of mechanical metallurgy. In this regard, solute-defect interactions have emerged as critical piece in elucidating the operation of deformation mechanisms. While notable progress has been made in understanding solute-defect interactions for random solute arrangements, recent interest in high entropy alloys with short-range order adds a new layer of structural complexity for which a cohesive picture has yet to emerge. To this end, this minireview synthesizes the current understanding of short-range order effects on defect behavior through an examination of the key recent literature. This analysis centers on the nanoscale metallurgy of deformation mechanisms, with the order-induced changes to the relevant defect energy landscapes serving as a touchstone for discussion. The topics reviewed include dislocation-mediated strengthening, twinning and phase transformation-based mechanisms, and vacancy-mediated processes. This minireview concludes with remarks on current challenges and opportunities for future efforts.
Cynontodium capillaceum Hedw.
Creators: name: Price, Michelle J.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Dicranales
Ditrichaceae
Cynontodium
Cynontodium capillaceum

description: BN: Cynontodium capillaceum Hedw.,
Sp. Musc. Frond.: 57. 1801.
CN / SY: Distichium capillaceum (Hedw.) Bruch & Schimp., Bryol. Eur. 2: 156 (fasc. 29-30. Monogr. 4). 1846.
PL: Saxonia inferior, Niedersachswerfen et Neuhof, in montibus gypsaceis prope Steigerthal, ad ripas fluvii Bode, (in calcareis Franconiae, alpestribus Austriae) Suecia, Islandia in fissuris rupium.
LI: Swartzia capillacea Hedw. St. Cr. Vol.II. p. 72. t. 26.
[b. ex ins Melville (illegible word)].
LT: OCHYRA & al. (2008: 131), lectotype in G, “The right specimen in the lower row, on the sheet labelled ‘Swartzia capillacea Hedw. St. Cr. Vol.II. p. 72. t. 26.’ – G-Hedwig/ Schwägrichen”. [G00040111].
Figure: PRICE (2005: Fig. 42).
description: Published as part of Price, Michelle J., 2014, Hedwig-Schwägrichen types catalogue update (1): new typifications and typification corrections, pp. 119-133 in Candollea 69 (2) on pages 121-122, DOI: 10.15553/c2014v692a3, http://zenodo.org/record/5715296
ancestral hauntings and utopian conjurings:  a fool’s journey into COVEN-19, or Magicks for Unprecedented Times
Creators: name: Clearwood, Maegan
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: Conceived in the wake of a global pandemic and the unanticipated need to create digital theatre, COVEN-19, or Magicks for Unprecdented Times as a devising project consisted of two witchcraft-inspired performances: a fall 2020 Samhain ritual and a spring 2021 Beltane ritual. The company of undergraduate and graduate theatre witches explored decentralized, iterative, slow, caretaking, queer forms of devising over digital platforms. The written portion of this thesis takes the form of a digital tarot blog: 22 (plus a bonus) interconnected essays and spells that interrogate feminist and queer theories as they pertain to the Coven’s devising process. This digital format not only reflects the malleable nature of the creative process, but it is also a kind of praxis that invites the reader to take an active role in meaning-making and resists an objective, singular narrative. Woven through these tarot cards are threads of utopian futurity, situated subjectivities, and anticapitalist temporalities. The essays and spells are primarily in conversation with adrienne maree brown, Judith Butler, Audre Lorde, Jose Estaban Munoz, and Starhawk – engaging with these theorists as thought-ancestors in order to activate rather than regurgitate their knowledges of radical hope and nonlinear process. The tarot deck takes a situated, backwards glance toward these ancestors as it grasps at seemingly impossible utopian horizons of collaboration and creation.
Conflict Resolution within Economic Organizations
Creators: name: Kriebel, Charles H.
name: Lave, Lester B.
Publisher: name: Carnegie Mellon University
Year: 1995
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Alternatives for reducing goal conflict within an organization are analyzed via a mathematical model. To bring the goals of managers into line with organizational goals, compensation via salary and profit sharing are examined as well as schemes for imposing profit constraints and using transfer pricing. Conclusions of the analysis can be summarized in four propositions. (a) A salary compensation plan will not motivate managers in a decentralized organization to maximize company profits. (b) Profit sharing can be used to increase both division profit and the satisfaction of the manager relative to a simple salary compensation plan. (c) However, a bonus compensation plan cannot yield maximum company profits. (d) The combination of transfer pricing and a profit sharing compensation plan can provide maximization of company profits under decentralization.
The Voice of the Other: The Influence of Capitalism on The Representation of Gender and Race in Western Classical Music
Creators: name: Comuzzo, Marie
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: This thesis argues that in order to understand the non-representation of women and BIPOC in the Western musical canon, the analysis of their cultural musical production and reception must start in early modern period, a time heavily influenced by the establishment of capitalism. Intertwining political feminist studies, critical race theory and musicology critique, I argue that the witch hunts and the inhumane colonial practices in Africa and the America (fundamental to establish capitalism as a global system), had an important role in shaping Western musical culture as homogeneous and monolithic. Thus, I first trace the change in female customs in the early modern period and show how poetry and then music reflected the newly imposed norm of chastity presenting as case study “I’ mi son giovinetta.” Here I discuss the importance of il concerto delle dame in Italy, their vital role in conserving women’s musical excellence as well as the restriction imposed on their lives based solely on their gender. Race and gender biases are protagonist of the following chapter, where I present a case study on Die Zauberflöte as mirror of the societal changes happening at the same time in Europe. Intersecting race, gender and class I demonstrate the multiple ways in which this opera reiterates the victory of capitalistic patriarchy over the previous way of organizing life. In the last chapter, I discuss the various conflicting ideas that scholars brought forth regarding the Western canon formation. I argue that the gendered and racist pseudo-scientific ideologies that relegated women and BIPOC to their bodies (in connection to capitalist’s exploitation of “free labor”), were reaffirmed by scholars in the following centuries. These ideologies fed into the elevation of “absolute music” as the manifestation of the (white, male) intellectual genius, and contributed to forging musical institution that today continue to uphold sexists and racist values.
Cultivating Food Justice: Exploring Public Interest Design Process through a Food Security & Sustainability Hub
Creators: name: DeHaven, Madison J
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: This thesis addresses the deep-rooted systemic issue of food justice, through the development of a Food Security & Sustainability Hub in Northampton, Massachusetts. As part of the thesis process, I initiated engagement with local stakeholders and organizations using established practices of public interest design. This included a series of meetings and site visits with the leaders of a nonprofit social justice farm in Northampton, MA. These conversations shaped the project scope and design. In doing so, the thesis project tested ideas about social process and the overarching role of discourse in design. My hope is that through thoughtful analysis and engagement through the lens of a real project, I can contribute to this ongoing conversation and inform future pursuits.
The Complex Frobenius Theorem for Rough Involutive Structures
Creators: name: Hill, C. Denson
name: Taylor, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 35N10

description: We establish a version of the complex Frobenius theorem in the context of a complex subbundle S of the complexified tangent bundle of a manifold, having minimal regularity. If the subbundle S defines the structure of a Levi-flat CR-manifold, it suffices that S be Lipschitz for our results to apply. A principal tool in the analysis is a precise version of the Newlander-Nirenberg theorem with parameters, for integrable almost complex structures with minimal regularity, which builds on previous recent work of the authors.
description: In the two papers by Hill & Taylor, we have adjusted the page height so that the arxiv does not cut off the bottom two lines of each page, being unable to digest our amstex
Lagrangian Klein bottles in R^{2n}
Creators: name: Nemirovski, Stefan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: It is shown that the n-dimensional Klein bottle admits a Lagrangian embedding into R^{2n} if and only if n is odd.
description: V.2 - explicit formula for the Luttinger-type surgery; V.3 - section 3 corrected, section 6 expanded; 6 pages
Spin-state ice in geometrically frustrated spin-crossover materials
Creators: name: Cruddas, Jace
name: Powell, B. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Spin crossover materials contain metal ions that can access two spin-states: one low-spin (LS), the other high-spin (HS). We propose that frustrated elastic interactions can give rise to spin-state ices -- phases of matter without long-range order, characterized by a local constraint or `ice rule'. The low-energy physics of spin-state ices is described by an emergent divergence-less gauge field with a gap to topological excitations that are deconfined quasi-particles with spin fractionalized midway between the spins of the LS and HS states.
description: Major edit, some new results; 8+2 pages
River Tapi Rejuvenation: Elevating the Ecological Corridor of Surat City
Creators: name: DESAI, KINJAL
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: With rapid urban sprawl, comes new challenges to the trends in urbanization. The recent trends in urban development bring urban systems and urban experiences into daily contact with natural habitats. So, it is extremely important to consider natural systems in play while designing for an Urban ecosystem, which is one of the principles of Landscape Urbanism. It is a design practice that intervenes Natural landscape and habitation to form an integrative systems approach. This thesis is built upon approaching an urban riverfront development project through the perspective of Landscape Urbanism. It aims at developing design strategies for the ecological restoration of River Tapi and an environmentally efficient riverfront.
The site context is carefully studied and analyzed through literature review, history, mapping analysis, public survey, on-site observation, and activity mapping. The complex concerns that emerge out of context study are strategically organized as a system of categories. Building upon these categories is design interventions to combat those. These interventions are then validated through a prototype site design which can be used as a module to further rejuvenate River Tapi and develop the riverfront.
Physical to Virtual: A Model for Future Virtual Classroom Environments
Creators: name: Fink, Stephen J
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: Virtual reality is a technology that has seen unprecedented growth since the turn of the century with increasing applications within business, entertainment, and educational applications. As virtual reality technologies continue to develops and markets expand, the world may see an increased demand for virtual classrooms: virtual environments (VEs) that students may access through immersive virtual reality technologies to receive guided instruction, conduct simulations, or perform tasks typical in a classroom setting. While many studies document how virtual reality is beneficial to educational processes, there is little discussion on how virtual environments should be architecturally designed. Thus one may hypothesize that physical design strategies translated to virtual environments may have similar results. This thesis investigates virtual environments for education by creating several virtual classrooms embedded within a selective digital twin of the University of Massachusetts Amherst campus. The design of the virtual classrooms was influenced by current architectural trends in classroom design while capturing unique abilities present within a virtual context. A physical teaching module was also designed to create a platform for educators within the university to deliver instruction within the virtual campus.
Hybrid Contact Preintegration for Visual-Inertial-Contact State Estimation Using Factor Graphs
Creators: name: Hartley, Ross
name: Jadidi, Maani Ghaffari
name: Gan, Lu
name: Huang, Jiunn-Kai
name: Grizzle, Jessy W.
name: Eustice, Ryan M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The factor graph framework is a convenient modeling technique for robotic state estimation where states are represented as nodes, and measurements are modeled as factors. When designing a sensor fusion framework for legged robots, one often has access to visual, inertial, joint encoder, and contact sensors. While visual-inertial odometry has been studied extensively in this framework, the addition of a preintegrated contact factor for legged robots has been only recently proposed. This allowed for integration of encoder and contact measurements into existing factor graphs, however, new nodes had to be added to the graph every time contact was made or broken. In this work, to cope with the problem of switching contact frames, we propose a hybrid contact preintegration theory that allows contact information to be integrated through an arbitrary number of contact switches. The proposed hybrid modeling approach reduces the number of required variables in the nonlinear optimization problem by only requiring new states to be added alongside camera or selected keyframes. This method is evaluated using real experimental data collected from a Cassie-series robot where the trajectory of the robot produced by a motion capture system is used as a proxy for ground truth. The evaluation shows that inclusion of the proposed preintegrated hybrid contact factor alongside visual-inertial navigation systems improves estimation accuracy as well as robustness to vision failure, while its generalization makes it more accessible for legged platforms.
description: Detailed derivations are provided in the supplementary material document listed under "Ancillary files"
Conflict in Diverse Teams: The Problem of Representational Gaps And the Solution of Cognitive and Affective Integration
Creators: name: Cronin, Matthew A.
name: Weingart, Laurie
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Diversity in teams, while potentially beneficial, increases the likelihood that individual team members will define the team’s task differently, leading to gaps in their perceptions of what is important for team task execution. These representational gaps are likely to create conflict as teammates try to solve what are essentially incompatible problems. We articulate how these representational gaps affect team functioning and how cognitive and affective integration can mitigate the potentially negative effect of representational gaps.
Detroit: Revitalizing Urban Communities
Creators: name: FITE, DAVID N
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: This thesis examines the relationship between architecture and planning in Detroit. The relationship between these two disciplines has reinforced gross inequality in socioeconomic status over many decades. It has been compounded by racism which planning policy and Architecture exploited during the 20th Century for private interests. This impacts the built environment at all scales. Today division is reinforced through small details such as how handrails are placed on benches, but it extends to planning metropolitan areas, and how they are divided up into city and suburb. At the scales between, both architecture and planning reinforce the segregation within their own disciplines, but the stage is set at this intersection. The scale of 1”=100’ has a history of being a scale at which both architectural form, and planning, can be expressed simultaneously. This is famously seen in the scale model of San Francisco which was commissioned by the City during the Great Depression.
Architecturally, the prevalence of skywalks between major buildings in urban areas has greatly increased. These networks grow organically, responding to a market demand for division, a city within a city. In Detroit, neighborhoods have edges, and within a few blocks, there is emptiness and abandonment. It is one of these edges that is explored in the intervention. The edges are oftentimes reinforced by the built environment with walls, traffic regulations, and pedestrian access carefully controlled at the scale of the neighborhood. Therefore, the thesis proposes a new form of development and is interested in this scale where architecture and planning are supposed to meet. Through this interdisciplinary approach, more problems are addressed simultaneously. The intervention identifies an educational district just outside of downtown Detroit and greatly expands it over several decades. 3 focus buildings were developed in more detail to sketch possible formal outcomes of the exercise in the built environment. The intervention proposes greater community input which informs this reimagining of neighborhood. The idea also draws on the concept of a “15-minute neighborhood,” which has been proposed by the mayor of Detroit as a solution to urban blight in Detroit.
ЭМПИРИЧЕСКАЯ АНТИБИОТИКОТЕРАПИЯ БАКТЕРИАЛЬНОЙ ДЕСТРУКЦИИ ЛЕГКИХ У ДЕТЕЙ
Creators: name: Зокиров, З.З.
Publisher: name: Zenodo
Year: 2025

description: Несмотря на достигнутые успехи современной науки в области медицины, проблема гнойно-деструктивного воспаления дыхательных путей у детей остается достаточно актуальной и представляют собой реальную опасность для жизни больного ребенка.
Computing the Value of the Real Option to Transport Natural Gas and Its Sensitivities
Creators: name: Mulan X. Wang
name: Secomandi, Nicola
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: In the United States natural gas pipelines lease their transport capacity to shippers via contracts, which shippers manage as real options on differences between natural gas prices at different geographical locations. In practice it is common to value these real options using spread option valuation techniques, because they quickly compute both their values and, even more important, their sensitivities to parameters of interest (the greeks). Although fast, we show that in the general case of network contracts this approach is heuristic. Thus, we propose a novel and computationally efficient method that estimates the exact real option value of such a contract and computes unbiased estimates of its greeks, based on the application of linear programming, Monte Carlo simulation, and direct greek estimation techniques. We test this method on realistic instances modeled after contracts available on the Transco pipeline, using a reduced form model of the risk neutral evolution of natural gas prices calibrated on real data. Our main findings are that our method can significantly improve the practice based valuations of these contracts, by up to about 10%, and the application of direct greek estimation techniques is critical to make our method computationally efficient. Our work is relevant to natural gas shippers; a version of our model was recently implemented by a major international energy trading company. Potentially, our work has wider significance for the valuation and management of other commodity and energy real options, whose payoffs are determined by solving capacity constrained optimization models.
Your New Best Friends: An Exploration of Furby, Siri, and Other Sociable Electronics
Creators: name: Forbes, Avery
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: Your New Best Friends: An Exploration of Furby, Siri and Other Sociable Electronics is focused around interactive electronic systems and the effect these systems can have on our human psyches. My work focuses on two particular periods of development: the late 80’s to early 90’s, and the 2010’s to present. One period represents my childhood and the other my early adulthood. By comparing the two I can examine trends in the ways we engage with robotics and can better understand the ubiquity of electronically mediated interactions today. I utilize these new understandings to manipulate the capabilities of devices from both periods to create pieces that communicate care in a new way, sparking a moment of joy for the viewer while also increasing the awareness of the failings of devices when compared with true human interaction.
Determining the Penguin Effect on CP Violation in $B^0 \rightarrow π^+ π^-$
Creators: name: Silva, Joao P.
name: Wolfenstein, L.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A major goal in B physics is measuring the CP-violating asymmetry in the decay $B^0 \rightarrow π^+ π^-$. In order to determine one of the phase angles in the CKM matrix from this decay it is necessary to determine the influence of the penguin amplitude. Here we show how, using $SU(3)$ symmetry, the penguin effect can be approximately determined from the ratio of the decay rates of $B^0 \rightarrow K^+ π^-$ and $B^0 \rightarrow π^+ π^-$.
description: Latex file, 5 pages, 4 figures available on request. Preprint DOE-ER/40682-43, CMU-HEP93-18
Coordinate space calculation of two- and three-loop sunrise-type diagrams, elliptic functions and truncated Bessel integral identities
Creators: name: Groote, S.
name: Körner, J. G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We integrate three-loop sunrise-type vacuum diagrams in $D_0=4$ dimensions with four different masses using configuration space techniques. The finite parts of our results are in numerical agreement with corresponding three-loop calculations in momentum space. Using some of the closed form results of the momentum space calculation we arrive at new integral identities involving truncated integrals of products of Bessel functions. For the non-degenerate finite two-loop sunrise-type vacuum diagram in $D_0=2$ dimensions we make use of the known closed form $p$-space result to express the moment of a product of three Bessel functions in terms of a sum of Claussen polylogarithms. Using results for the nondegenerate two-loop sunrise diagram from the literature in $D_0=2$ dimensions we obtain a Bessel function integral identity in terms of elliptic functions.
description: 14 pages, 1 figure
The impact of AGN outflows on the surface habitability of terrestrial planets in the Milky Way
Creators: name: Ambrifi, A.
name: Balbi, A.
name: Lingam, M.
name: Tombesi, F.
name: Perlman, E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is well-known that active galactic nuclei (AGN) are accompanied by winds and outflows, some of which may reach weakly relativistic speeds of about $10$ percent the speed of light. Yet, in spite of their ubiquity, the impact of AGN outflows in modulating surface habitability of terrestrial planets on galactic scales, using the Milky Way as the basis for comparison, is poorly investigated and inadequately understood. In this work, we address this issue by focusing on two key mechanisms: AGN winds can heat atmospheres and drive atmospheric escape, as well as stimulate the formation of nitrogen oxides and thence cause ozone depletion. By developing simple models, we estimate the maximal distance up to which these deleterious effects are rendered significant for Earth-like planets in the Milky Way, and thereby demonstrate that this value may extend to $\lesssim 1$ kpc. In the case of quasars hosting larger supermassive black holes, such effects could actually influence the AGN host galaxy as a whole.
description: 12 pages, 5 figures. Accepted in MNRAS
Numerical simulation of excitation of solar oscillation modes for different turbulent models
Creators: name: Jacoutot, L.
name: Kosovichev, A. G.
name: Wray, A.
name: Mansour, N. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The goal of this research is to investigate how well various turbulence models can describe physical properties of the upper convective boundary layer of the Sun. An accurate modeling of the turbulence motions is necessary for understanding the excitation mechanisms of solar oscillation modes. We have carried out realistic numerical simulations using several different physical Large Eddy Simulation (LES) models (Hyperviscosity approach, Smagorinsky, and dynamic models) to investigate how the differences in turbulence modeling affect the damping and excitation of the oscillations and their spectral properties and compare with observations. We have first calculated the oscillation power spectra of radial and non-radial modes supported by the computational box with the different turbulence models. Then we have calculated the work integral input to the modes to estimate the influence of the turbulence model on the depth and strength of the oscillation sources. We have compared these results with previous studies and with the observed properties of solar oscillations. We find that the dynamic turbulence model provides the best agreement with the helioseismic observations.
description: submitted to APJL
Effect of inhomogeneous coupling on superconductivity
Creators: name: Zou, Yue
name: Klich, Israel
name: Refael, Gil
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the influence of inhomogeneity in the pairing coupling constant $U(\vec r)$ on dirty BCS superconductors, focusing on $T_c$, the order parameter $Δ(\vec r)$, and the energy gap $E_g(\vec r)$. Within mean-field theory, we find that when the length-scale of the inhomogeneity is comparable to, or larger than the coherence length, the ratio $2E_g/T_c$ is significantly reduced from that of a homogeneous superconductor, while in the opposite limit this ratio stays unmodified. In two dimensions, when strong phase fluctuations are included, the Kosterlitz-Thouless temperature $T_{KT}$ is also studied. We find that when the inhomogeneity length scale is much larger than the coherence length, $2E_g/T_{KT}$ can be larger than the usual BCS value. We use our results to qualitatively explain recent experimental observation of a surprisingly low value of $2E_g/T_c$ in thin films.
description: 12 pages, 14 figures
Adapting the Hellmouth in the Office of the Dead from the Hours of Catherine of Cleves: An Experiment in Using a Dramaturgical Approach to Medieval Studies
Creators: name: Godfrey, Tatiana A
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: This thesis is an artefact documenting the process of adapting a late medieval painting of hell into a short horror film. The process of adapting the Three Mouths of Hell, housed within the Hours of Catherine of Cleves, serves as an experiment in applying a dramaturgical approach to medieval studies. The process of adaptation and production, informed by critical research about the Hours of Catherine of Cleves and its Three Mouths of Hell, yields new frameworks for understanding the history of Catherine of Cleves, her Book of Hours, and the Three Mouths of Hell.
Knowledge, attitude and perception of dental practitioners about pulp revascularization or regenerative endodontic procedures in children – A web-based questionnaire survey
Creators: name: Nagaveni NB
name: Ashwini KS
name: Chiranjeevi H
Publisher: name: gjrpublication
Year: 2024

description: Aim: To evaluate knowledge, attitude and perception of dental practitioners towards pulp revascularization or regenerative endodontic procedures in children for the management of immature, non-vital teeth using a web-based questionnaire survey.

Materials and Methods: A questionnaire containing ten questions was prepared and was converted to Google forms which was then circulated to all dental practitioners residing in and around Davangere and Chitradurga District, Karnataka State, India using WhatsApp and Email. Filled questionnaires were received and data was collected, tabulated and subjected to statistical analysis using descriptive statistics.

Results: Majority of dental practitioners were not aware of pulp revascularization or regenerative endodontic procedures pertaining to many factors such as in which teeth this procedure is carried out, which medicaments/materials are used in this procedure and which specialist performs the procedure. About 97.9% of practitioners expressed interest in learning information/procedure about pulp revascularization and 92.1% wished to implement this new treatment modality in their clinical practice and to attend educational programmes/workshops regarding this.

Conclusion: There is a need for creating and enhancing the level of knowledge, and awareness among dental practitioners towards pulp revascularization procedures by conducting more and more continuing dental educational programmes by local dental organisations in order to save natural smiles of young children.
Mtemp: An Ambient Temperature Estimation Method Using Acoustic Signal on Mobile Devices
Creators: name: Guo, Hao
Publisher: name: University of Massachusetts Amherst
Year: 2021

description: Ambient temperature sensing plays an important role in a number of applications in agriculture, industry, daily health care. In this thesis project, we propose a new acoustic-based ambient temperature sensing method called Mtemp. Mtemp empowers acoustic-enabled IoT devices, smartphones to perform ambient air temperature sensing without additional hardware. Basically, Mtemp utilizes on-board speaker and microphone to calculate the propagation speed of acoustic signal by measuring the phrase of the target signal, thereby estimate the ambient temperature according to a roughly linear relationship between temperature and sound speed. Mtemp is portable and economical, making it competitive compared with traditional thermometers for ubiquitous sensing.