cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Differential-Geometric Decomposition of Flat Nonlinear Discrete-Time Systems
Creators: name: Kolar, Bernd
name: Schöberl, Markus
name: Diwold, Johannes
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We prove that every flat nonlinear discrete-time system can be decomposed by coordinate transformations into a smaller-dimensional subsystem and an endogenous dynamic feedback. For flat continuous-time systems, no comparable result is available. The advantage of such a decomposition is that the complete system is flat if and only if the subsystem is flat. Thus, by repeating the decomposition at most $n-1$ times, where $n$ is the dimension of the state space, the flatness of a discrete-time system can be checked in an algorithmic way. If the system is flat, then the algorithm yields a flat output which only depends on the state variables. Hence, every flat discrete-time system has a flat output which does not depend on the inputs and their forward-shifts. Again, no comparable result for flat continuous-time systems is available. The algorithm requires in each decomposition step the construction of state- and input transformations, which are obtained by straightening out certain vector fields or distributions with the flow-box theorem or the Frobenius theorem. Thus, from a computational point of view, only the calculation of flows and the solution of algebraic equations is needed. We illustrate our results by two examples.
On the charged Riemannian Penrose inequality with charged matter
Creators: name: McCormick, Stephen
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Throughout the literature on the charged Riemannian Penrose inequality, it is generally assumed that there is no charged matter present; that is, the electric field is divergence-free. The aim of this article is to clarify when the charged Riemannian Penrose inequality holds in the presence of charged matter, and when it does not. First we revisit Jang's proof of the charged Riemannian Penrose inequality to show that under suitable conditions on the charged matter, this argument still carries though. In particular, a charged Riemannian Penrose inequality is obtained from this argument when charged matter is present provided that the charge density does not change sign. Moreover, we show that such hypotheses on the sign of the charge are in fact required by constructing counterexamples to the charged Riemannian Penrose inequality when these conditions are violated. We conclude by comparing this counterexample to another version of the Riemannian Penrose inequality with charged matter existing in the literature.
description: V2: Updated to agree with published version (various small clarifications added). 18 pages, comments very welcome :)
The Decay of Passive Scalars Under the Action of Single Scale Smooth Velocity Fields in Bounded 2D Domains : From non self similar pdf's to self similar eigenmodes
Creators: name: Sukhatme, Jai
name: Pierrehumbert, Raymond T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We examine the decay of passive scalars with small, but non zero, diffusivity in bounded 2D domains. The velocity fields responsible for advection are smooth (i.e., they have bounded gradients) and of a single large scale. Moreover, the scale of the velocity field is taken to be similar to the size of the entire domain. The importance of the initial scale of variation of the scalar field with respect to that of the velocity field is strongly emphasized. If these scales are comparable and the velocity field is time periodic, we see the formation of a periodic scalar eigenmode. The eigenmode is numerically realized by means of a deterministic 2D map on a lattice. Analytical justification for the eigenmode is available from theorems in the dynamo literature. Weakening the notion of an eigenmode to mean statistical stationarity, we provide numerical evidence that the eigenmode solution also holds for aperiodic flows (represented by random maps). Turning to the evolution of an initially small scale scalar field, we demonstrate the transition from an evolving (i.e., {\it non} self similar) pdf to a stationary (self similar) pdf as the scale of variation of the scalar field progresses from being small to being comparable to that of the velocity field (and of the domain). Furthermore, the {\it non} self similar regime itself consists of two stages. Both the stages are examined and the coupling between diffusion and the distribution of the Finite Time Lyapunov Exponents is shown to be responsible for the pdf evolution.
description: 21 pages (2 col. format), 11 figures. Accepted, to appear in PRE
Immigration and Sexual Citizenship: Gender, Sexuality and Ethnicity in Contemporary France
Creators: Mack, Mehammed Amadeus
Publisher: name: Columbia University
Year: 2012
Subjects: Comparative literature
Gender identity
Sex role
Ethnicity

description: This dissertation considers discourses bearing on the social dynamics of immigration and postcolonial diversity in contemporary France in light of their interconnections with issues of sexuality and assimilation. Synthesizing and building on recent work by anthropologists, sociologists and cultural theorists it explores the current debate over French identity--a debate that has to a considerable extent revolved around the impact of recent postwar immigration to France and the "integration" of immigrants on the cultural level, and of which a recent symptom has been the Sarkozy government's launch of a public national debate about "l'identité nationale" (national identity). Overall, my project focuses on the intermingling of the cultural and the political in cultural representations of immigrants and their descendants.  Specifically, I consider the highly charged terrain of the representation of sexuality. In the discourse on laïcité (secularism) and integration, gender norms and tolerance of homosexuality have emerged as key components and are now often employed to highlight immigrants' "un-French" attitudes. I argue that, as French and immigrant identities have been called into question, sexuality has constituted a favored prism through which to establish the existence of difference. Through the study of cultural representations of immigration, I will explain how the potential of immigrants and their descendants to assimilate is often judged according to the "fitness" of their attitudes about sexuality. I will further argue that the successful assimilation of immigrants often follows a "required" phase of sexualization, in which the sexuality of the immigrant becomes his or her main marker, the primary factor through which the immigrant is intelligible, beyond other possibly relevant criteria.
Immediate axonal retrograde signaling in amyloid-dependent neurodegeneration
Creators: Walker, Chandler
Publisher: name: Columbia University
Year: 2017
Subjects: subject: Cytology
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Axons
subject: Nervous system--Degeneration

description: The following dissertation herein discusses the role of axonal protein synthesis in Aβ1-42-dependent neurodegeneration, which has important implications in AD pathogenesis. In Part 1, I provide a brief introduction to relevant topics including neurodegeneration and axonal protein synthesis. In Part 2, I discuss findings that we published in 2014 describing a mechanism by which axonal exposure to Aβ1-42 induces cell death via axonal synthesis and retrograde transport of a transcription factor, ATF4. In Part 3, I discuss a follow-up project that I conducted independently, which is not yet published but is in preparation for submission describing the immediate effect of Aβ1-42 on axonal protein synthesis, which mediates the downstream axonal ATF4 signaling events described in Part 2. In Part 4, I discuss the key findings from these two projects including their significance and potential future directions. In the Appendix, I provide details regarding experimental methods and statistical analyses performed in Part 3.
Additional file 1: of Factors influencing awareness of healthcare providers on maternal sepsis: a mixed-methods approach
Creators: name: Brizuela, Vanessa
name: Bonet, Mercedes
name: JoĂŁo Souza
name: ĂZge TunĂ§Alp
name: Kasisomayajula Viswanath
name: Langer, Ana
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology

description: Interview guide. (DOCX 21 kb)
Additional file 1 of Are malaria transmission-blocking vaccines acceptable to high burden communities? Results from a mixed methods study in Bo, Sierra Leone
Creators: name: McCoy, Kaci D.
name: Weldon, Caroline T.
name: Ansumana, Rashid
name: Lamin, Joseph M.
name: Stenger, David A.
name: Ryan, Sadie J.
name: Bardosh, Kevin
name: Jacobsen, Kathryn H.
name: Dinglasan, Rhoel R.
Publisher: name: figshare
Year: 2021
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Discussion guide.
Extended bound states and resonances of two fermions on a periodic lattice
Creators: name: Blaer, A. S.
name: Ren, H. C.
name: Tchernyshyov, O.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The high-$T_c$ cuprates are possible candidates for d-wave superconductivity, with the Cooper pair wave function belonging to a non-trivial irreducible representation of the lattice point group. We argue that this d-wave symmetry is related to a special form of the fermionic kinetic energy and does not require any novel pairing mechanism. In this context, we present a detailed study of the bound states and resonances formed by two lattice fermions interacting via a non-retarded potential that is attractive for nearest neighbors but repulsive for other relative positions. In the case of strong binding, a pair formed by fermions on adjacent lattice sites can have a small effective mass, thereby implying a high condensation temperature. For a weakly bound state, a pair with non-trivial symmetry tends to be smaller in size than an s-wave pair. These and other findings are discussed in connection with the properties of high-$T_c$ cuprate superconductors.
description: 21 pages, RevTeX, 4 Postscript figures, arithmetic errors corrected. An abbreviated version (no appendix) appeared in PRB on March 1, 1997
Nonlinear Evolution of Ion Kinetic Instabilities in the Solar Wind
Creators: name: Ofman, Leon
Publisher: name: arXiv
Year: 2019
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In-situ observations of the solar wind (SW) plasma from 0.29 to 1AU show that the protons and alpha particles are often non-Maxwellian, with evidence of kinetic instabilities, temperature anisotropies, differential ion streaming, and associated magnetic fluctuations spectra. The kinetic instabilities in the SW multi-ion plasma can lead to preferential heating of alpha particles and the dissipation of magnetic fluctuation energy, affecting the kinetic and global properties of the SW. Using for the first time a three-dimensional hybrid model, where ions are modeled as particle using the Particle-In-Cell (PIC) method and electrons are treated as fluid, we study the onset, nonlinear evolution and dissipation of ion kinetic instabilities. The Alfven/ion-cyclotron, and the ion drift instabilities are modeled in the region close to the Sun (~10R_s). Solar wind expansion is incorporated in the model. The model produces self-consistent non-Maxwellian velocity distribution functions (VDFs) of unstable ion populations, the associated temperature anisotropies, and wave spectra for several typical SW instability cases in the nonlinear growth and saturation stage of the instabilities. The 3D hybrid modeling of the multi-ion SW plasma could be used to study the SW acceleration region close to the Sun that will be explored by the Parker Solar Probe mission.
description: Submitted to Solar Physics
SACHRATQI (CICHORIUM INTYBUS) O'SIMLIGINING FARMATSEVTIK XUSUSIYATLARI VA QO'LLANILISHI
Creators: name: Raximova, Xusnidaxon
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada sachratqi (Cichorium intybus) o’simligi, uning morfologik tuzilishi, geografik tarqalishi, kimyoviy tarkibi, farmatsevtik xususiyatlari, xalq tabobati va tibbiyotda qo‘llanilishi tahlil qilingan. Hozirgi kunda ko’plab mamlakatlarda sachratqi o’simligining guli, bargi, yosh novdasi, ildizidan turli maqsadlarda foydalanib kelinmoqda.
АНАЛИЗ УСТРОЙСТВ КРЕПЛЕНИЯ АВТОТРАНСПОРТНЫХ СРЕДСТВ ПРИ ПЕРЕВОЗКЕ ЖЕЛЕЗНОДОРОЖНЫМ ВИДОМ ТРАНСПОРТА
Creators: name: Доминов, Дамир
Publisher: name: Zenodo
Year: 2025

description: Статья посвящена анализу устройств крепления автотранспортных средств при их перевозке железнодорожным транспортом. Рассматриваются основные типы крепежных систем, используемых для надежной фиксации автомобилей на железнодорожных платформах, а также их особенности и преимущества в контексте обеспечения безопасности и эффективности перевозок. Особое внимание уделено инновационным технологиям, таким как использование углеродных волокон, автоматизация и полуавтоматизация крепежных процессов, а также развитие интеллектуальных систем мониторинга. В статье анализируются современные разработки в области крепежных технологий, включая патенты и научные работы, а также влияние этих инноваций на повышение безопасности и снижение времени на погрузочно-разгрузочные работы. Работа направлена на улучшение понимания и развития технологий крепления автотранспортных средств, что способствует повышению эффективности и безопасности железнодорожных перевозок.
Event shape and Multiplicity dependence of Freeze-out Scenario and System Thermodynamics in Proton+Proton Collisions at $\sqrt{s}$ = 13 TeV using PYTHIA8
Creators: name: Tripathy, Sushanta
name: Bisht, Ashish
name: Sahoo, Raghunath
name: Khuntia, Arvind
name: Salvan, Malavika Panikkassery
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent observations of QGP-like conditions in high-multiplicity pp collisions from ALICE experiment at the LHC warrants an introspection whether to use pp collisions as a baseline measurement to characterize heavy-ion collisions for possible formation of a Quark-Gluon Plasma. A double differential study of the particle spectra and thermodynamics of the produced system as a function of charged-particle multiplicity and transverse spherocity in pp collisions would shed light into the underlying event dynamics. Transverse spherocity, one of the event shape observables, allows to separate the events in terms of jetty and isotropic events. We analyse the identified particle transverse momentum ($p_{\rm T}$) spectra as a function of charged-particle multiplicity and transverse spherocity using Tsallis non-extensive statistics and Boltzmann-Gibbs Blastwave (BGBW) model in pp collisions at $\sqrt{s}$ = 13 TeV using PYTHIA8 event generator. The extracted parameters such as temperature ($T$), radial flow ($β$) and non-extensive parameter ($q$) are shown as a function of charged-particle multiplicity for different spherocity classes. We observe that the isotropic events approach to thermal equilibrium while the jetty ones remain far from equilibrium. We argue that, while studying the QGP-like conditions in small systems, one should separate the isotropic events from the spherocity-integrated events, as the production dynamics are different.
description: Same as the published version
Using a quantum computer to investigate quantum chaos
Creators: name: Schack, Ruediger
Publisher: name: arXiv
Year: 1997
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We show that the quantum baker's map, a prototypical map invented for theoretical studies of quantum chaos, has a very simple realization in terms of quantum gates. Chaos in the quantum baker's map could be investigated experimentally on a quantum computer based on only 3 qubits.
description: 4 pages, REVTEX, no figures
Higher Deformations of Lie Algebra Representations II
Creators: name: Westaway, Matthew
Publisher: name: arXiv
Year: 2019
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17B10 (Primary), 17B35, 17B50, 20G05 (Secondary)

description: Steinberg's tensor product theorem shows that for semisimple algebraic groups the study of irreducible representations of higher Frobenius kernels reduces to the study of irreducible representations of the first Frobenius kernel. In the preceding paper in this series, deforming the distribution algebra of a higher Frobenius kernel yielded a family of deformations called higher reduced enveloping algebras. In this paper we prove that Steinberg decomposition can be similarly deformed, allowing us to reduce representation theoretic questions about these algebras to questions about reduced enveloping algebras. We use this to derive structural results about modules over these algebras. Separately, we also show that many of the results in the preceding paper hold without an assumption of reductivity.
description: 22 pages. Version 2: Minor corrections and clarifications. Version 3: Corrections and clarifications. Final version, published by Nagoya Mathematical Journal
Impact of Gendered Topics in Letters of Recommendation on Perceived Importance for Making a Hiring Decision in Geosciences
Creators: Elmore, Joshua
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Organizational behavior
subject: Social psychology
subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Earth sciences
subject: Employee selection
subject: Sex discrimination in science

description: Scientific fields are perceived of as more masculine than feminine and stereotypes of scientists are more closely associated with stereotypes of men than of women (Carli et al., 2016). Supporting this point, Elmore, Block, Bowers and Dutt (2019) uncovered 31 topics from letters of recommendation for post-doctoral applicants in the geosciences and found that these topics described male and female applicants differently and, in a manner consistent with gender stereotypes. As the number of women in the geosciences declines further up the academic ladder (National Science Foundation, 2017) and as letters of recommendation play an important role in academic hiring (Abbott et al. 2010), it is important to understand if the use of gendered topics in these letters may reduce the likelihood of female advancement. Thus, in the present study we gathered questionnaire data from 250 geoscience researchers and scientists asking them to rate and rank the topics uncovered by Elmore et al. (2019) in terms of their importance when making hiring decisions. Results showed geoscientists valued research productivity and publishing over being a teacher, student, or department citizen. Topics expressed more in letters for male applicants in Elmore et al. (2019) were rated as significantly more important when making a hiring decision than topics expressed more in letters for female applicants. Further, the male topics identified in Elmore et al. (2019) were ranked more often as the most important topics and less often as least important topics when making a hiring decision compared to the female topics. Finally, 68% of participants indicated they attribute 50% or more of their hiring decision to information found in letters of recommendation, underscoring the importance of letters of recommendation to career advancement in the geosciences.
Ginzburg-Landau-Gor'kov Theory of Magnetic oscillations in a type-II 2-dimensional Superconductor
Creators: name: Bruun, G. M.
name: Nicopoulos, V. N.
name: Johnson, N. F.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate de Haas-van Alphen (dHvA) oscillations in the mixed state of a type-II two-dimensional superconductor within a self-consistent Gor'kov perturbation scheme. Assuming that the order parameter forms a vortex lattice we can calculate the expansion coefficients exactly to any order. We have tested the results of the perturbation theory to fourth and eight order against an exact numerical solution of the corresponding Bogoliubov-de Gennes equations. The perturbation theory is found to describe the onset of superconductivity well close to the transition point $H_{c2}$. Contrary to earlier calculations by other authors we do not find that the perturbative scheme predicts any maximum of the dHvA-oscillations below $H_{c2}$. Instead we obtain a substantial damping of the magnetic oscillations in the mixed state as compared to the normal state. We have examined the effect of an oscillatory chemical potential due to particle conservation and the effect of a finite Zeeman splitting. Furthermore we have investigated the recently debated issue of a possibility of a sign change of the fundamental harmonic of the magnetic oscillations. Our theory is compared with experiment and we have found good agreement.
description: 39 pages, 8 figures. This is a replacement of supr-con/9608004. Several sections changed or added, including a section on the effect of spin and the effect of a conserved number of particles. To be published in Phys. Rev. B
Impact of Mineralogy, Texture and Fabric of the Maritime Canadian Sandstone on Deterioration of Ornamental Bridges in Central Park, NYC
Creators: Patel, Mayank I.
Publisher: name: Columbia University
Year: 2013
Subjects: Weathering of buildings
Decoration and ornament, Architectural
Sandstone--Deterioration
Mineralogy

description: The sandstones from the Maritime Provinces in Canada, used for the construction and restoration of Bethesda Terrace and several ornamental arches and bridges inside Central Park, NYC, were known for their durability, consistency of weathering, variety of earth-toned colors, fine-grained composition and easy workability. Nonetheless, they display varying weathering behavior when exposed to the same environmental conditions.
While the type and degree of deterioration of the stone noted by former researchers at Central Park have been attributed largely to extrinsic factors rather than intrinsic factors, the aim of this research is to understand how different forms of deterioration observed may relate to the sandstone’s mineralogy and texture and determine if weathering is dependent on the stone’s source and utilization. Mineralogical composition and textural characteristics are important in any study of stone deterioration and treatment performance. They are useful to understand stone performance and weathering when used with other materials in a structure with complex environment such as of New York City. For this study, the Maritime Canadian sandstones used inside Central Park are fully characterized by determining their mineralogical composition and textural characteristics using x-ray diffraction (XRD), polarized light microscopy (PLM), scanning electron microscopy (SEM) and methylene blue index (MBI) of clay. Hygric dilation measurements were carried out to measure the stress exerted during swelling when the expansion is constrained. This characterization helps to compare and contrast deteriorated, undeteriorated and new samples; see differences among sandstones from different quarries; and understand how a particular stone characteristic may influence the sandstone’s specific weathering behavior.
Five Seconds to End Corruption and Political Dynasty - Will they sign? (Sworn Affidavit of Declaration + Instructions)
Creators: name: Munoz, Jonelle Peter
Publisher: name: Zenodo
Year: 2025

description: INSTRUCTIONS ON HOW TO USE THIS SWORN AFFIDAVIT OF DECLARATION

1.    This document can be used by any elective officials with veto power such as Mayor, Governor, and President.

o   The term “City” can be changed to “Province” or “Philippines” respectively.

2.    The first ordinance to be signed can be changed to any priority ordinance such as Anti-Political Dynasty Ordinance, Anti-Epal Ordinance, or any Ordinance not yet passed in a specific Local Government Unit.

3.    This Sworn Affidavit of Declaration can also be used by any Presidential Candidate. The Presidential Candidate can specify the list of his/her priority bills during the campaign period, as well as the very first Bill he/she will sign into Law. I published the below idea in one of my articles titled “The Tale of Two Leaders”.

 Any President can use his power and position for the greater good.

Make a public or written declaration to the Congress: 

"The first bill I will sign into law is the FOI Bill. I will never sign the General Appropriation Act (GAA) without a transparency mechanism in place for the more than ₱5 trillion budget. 

I will veto the budget insertions of all senators and representatives who will not vote in favor of the FOI Bill." 

Use the national budget as a strong leverage to pass landmark laws. 

---- 

"We can either accept deception as normal, or we can try something new." - Jonelle Peter Munoz (part of my article titled "Five seconds to end corruption and political dynasty - Will they Sign?) 

4.    “In the first year of my term” can be changed to “In the first 100 days of my term” or “In the first nth days of my term”, where n is any integer greater than 0.

5.    I only listed two priority ordinances. But any political candidate can list more than two priority ordinances. This document can evolve in the next few years to the point in which all infrastructure projects, sectoral pie chart breakdown of projects, PPA (projects, programs, and activities), financial and descriptive breakdowns of each PPA, etc…

6.    Each ordinance and PPA budget/descriptions can have specific Annex.

7.    The penalty can be changed into anything. The higher the penalty, the better. But I don’t think any other penalty applicable to this kind of Sworn Affidavit.
Impact of Gang Violence on "Transporte Colectivo Público Urbano" in Guatemala City
Creators: Cruz, Jessica Joanna
Publisher: name: Columbia University
Year: 2017
Subjects: Gangs
City planning
Transportation
Urban transportation
Urban transportation--Planning
Urban transportation--Social aspects

description: Today, Guatemala is the largest economy in Central America. A recent study completed by the World Bank indicates Guatemala has the potential of moving 160,000 people out of poverty through continued economic growth and expansion (World Bank 2017). However, high rates of inequality, gang violence, and barriers to inclusion, have contributed to the sprawl of the built environment and transportation networks throughout the country. A key aspect of growing sustainably, efficiently, and equitably, for metropolitan areas in Guatemala, specifically Guatemala City, is the improvement of the public transportation network. In recent years, residents of Guatemala City have increased their use of private vehicles, and decreased their usage of public transportation, in efforts to improve their safety against gang violence. In addition, the lack of enforcement of the public private partnership supplying transit in the city, risks the lives of individuals who are most dependent on the system. Between 2010 and January 2017, 1,138 passengers, drivers, and bus assistants were killed throughout the country. The deaths are attributed to increased gang violence, and the targeting of drivers and bus assistants by gang members. As Guatemala continues to move towards a majority urban population, eliminating the barriers to mobility and accessibility of the transportation networks, is crucial to ensuring economic growth and decreased rates of inequality.
Bicomplexes, Integrable Models, and Noncommutative Geometry
Creators: name: Dimakis, Aristophanes
name: Muller-Hoissen, Folkert
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We discuss a relation between bicomplexes and integrable models, and consider corresponding noncommutative (Moyal) deformations. As an example, a noncommutative version of a Toda field theory is presented.
description: 6 pages, 1 figure, LaTeX using amssymb.sty and diagrams.sty, to appear in Proceedings of the 1999 Euroconference "Noncommutative geometry and Hopf algebras in Field Theory and Particle Physics"
title: Quête des racines et mana des ancêtres : l’expérience du « retour » dans les villages d’origine en Chine
title: “Searching for Roots” and “Breathing the Ancestors’ Mana” : “Return” Travels to Chinese Villages of Origin
Creators: name: Trémon, Anne-Christine
Publisher: name: ethnographiques.org
Year: 2019
Subjects: Migration
Migrants
descendants d’émigrés
Voyage
Mobilité
Retours
Tourisme des racines
Tourisme diasporique
Chine
Diaspora
Ethnologie

description: La recherche de ses « racines » est l’objectif principal des voyages dits de « retour aux sources », en même temps que cette recherche est constitutive d’une façon bien particulière de voyager, celle du tourisme diasporique. Ayant suivi en Chine un groupe de personnes dont les ascendants avaient migré vers la Polynésie française, je montre que le voyage est lui-même appréhendé et mis en acte, suivant ce que l’historien Carlo Ginzburg appelle « un paradigme indiciaire », comme un jeu de pistes, et je restitue la manière dont les voyageurs ont mené une quête expérientielle d’itinéraires passés, ceux de leurs ancêtres. Ces quêtes sont menées dans un état d’ouverture à la découverte et suivant un principe de remise délibérée au hasard des rencontres avec des lieux et des personnes. Cette disposition, à la fois corporelle et mentale, et ce cheminement hasardeux doivent permettre la rencontre spirituelle attendue avec les ancêtres, ainsi que l’expérience du « retour ».
description: The search for one’s “roots” is the main goal of “return travels”, and this quest shapes diasporic tourists’ particular way of travelling. In October 2014, I followed a group of such travellers, whose forefathers had migrated to French Polynesia, in their search for their villages of origin in China. I show how their journey is conceived of and put in practice as a kind of detective game, following what historian Carlo Ginzburg has called the « evidential paradigm ». The travellers went on an experiential quest for traces of the past, that of their ancestors, and put themselves in a state of openness to discovery as well as of abandonment to serendipitous encounters with people and places. This mental and bodily disposition, and this open-ended exploration, are meant to provoke the desired spiritual encounter with the ancestors, and to facilitate the experience of “returning”.
Toward semiclassical theory of quantum level correlations of generic chaotic systems
Creators: name: Miller, Daniel L.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In the present work we study the two-point correlation function $R(ε)$ of the quantum mechanical spectrum of a classically chaotic system. Recently this quantity has been computed for chaotic and for disordered systems using periodic orbit theory and field theory. In this work we present an independent derivation, which is based on periodic orbit theory. The main ingredient in our approach is the use of the spectral zeta function and its autocorrelation function $C(ε)$. The relation between $R(ε)$ and $C(ε)$ is constructed by making use of a probabilistic reasoning similar to that which has been used for the derivation of Hardy -- Littlewood conjecture. We then convert the symmetry properties of the function $C(ε)$ into relations between the so-called diagonal and the off-diagonal parts of $R(ε)$. Our results are valid for generic systems with broken time reversal symmetry, and with non-commensurable periods of the periodic orbits.
description: 15 pages(twocolumn format), LaTeX, EPSF, (figures included)
Additional file 1: of Bibliometric mapping of intensive care nursesâ wellbeing: development and application of the new iAnalysis model
Creators: name: Jarden, Rebecca
name: Narayanan, Ajit
name: Sandham, Margaret
name: Siegert, Richard
name: Koziol-McLain, Jane
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Computational Biology

description: Table of full-text 100 most frequent words and co-occurring terms across studies 1 and 2. Additional File 1 presents a table of the 100 most frequent words and co-occurring terms for wellbeing and intensive care nurse wellbeing from the full-text analysis. (DOCX 22 kb)
Evidence for Quasiparticle Decay in Photoemission from Underdoped Cuprates
Creators: name: Laughlin, R. B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: I argue that the ``gap'' recently observed at the Brillouin zone face of cuprate superconductors in photoemission by Marshall et al [Phys. Rev. Lett. 76, 4841 (1996)] and Ding et al [Nature 382, 54 (1996)] is evidence for the decay of the injected hole into a spinon-holon pair.
description: 4 pages of ReVTeX, 3 eps figures
The Cash Cows, Dogs, Stars and Problem Children of the South African Agricultural Sector
Creators: name: Joubert, J.C.N.
name: Jooste, A.
name: Lotriet, R.
name: Joubert, J.C.N.
name: Jooste, A.
name: Lotriet, R.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Food Security and Poverty
subject: International Development
subject: Development path
subject: growth patterns
subject: South Africa
subject: agricultural industry
subject: cash cow

description: This paper investigates the development path of different agricultural sectors over the past 10 years in order to identify those subsectors that can contribute significantly towards reducing poverty and increasing national & household food security. The Boston Consulting Group (BCG) matrix was used to analyse growth patterns for different agricultural subsectors and classify them as cash cows, dogs, stars and question marks. The results show that the real average growth for the agricultural sector over the last ten years was 5.64 %. Of the 44 agricultural subsectors, 9 subsectors show a negative growth. The BCG matrix indicates one cash cow industry (sugar cane), eight dogs’(sisal, cotton, tobacco, tea, chicory, mohair, fry peas, dried fruit), fourteen stars (fowls slaughtered, maize, cattle & calves slaughtered, milk, vegetables, deciduous and other fruit, eggs, citrus fruit, wheat, potatoes, hay, viticulture, sheep and goats slaughtered, pigs slaughtered) and twenty one question marks. Institutional intervention by the public-private sectors are therefore necessary to unlock the potential of the problem children, maintain the momentum of the stars, extent the life of the cash cow and decide on the future of the dogs.
Numerical and Theoretical Studies of Noise Effects in the Kauffman Model
Creators: name: Qu, X.
name: Aldana, M.
name: Kadanoff, Leo P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: In this work we analyze the stochastic dynamics of the Kauffman model evolving under the influence of noise. By considering the average crossing time between two distinct trajectories, we show that different Kauffman models exhibit a similar kind of behavior, even when the structure of their basins of attraction is quite different. This can be considered as a robust property of these models. We present numerical results for the full range of noise level and obtain approximate analytic expressions for the above crossing time as a function of the noise in the limit cases of small and large noise levels.
description: 24 pages, 9 figures, Submitted to the Journal of Statistical Physics
On Injectivity of Quantum Finite Automata
Creators: name: Bell, Paul C.
name: Hirvensalo, Mika
Publisher: name: arXiv
Year: 2019
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: F.1.1; F.4.1; F.4.3

description: We consider notions of freeness and ambiguity for the acceptance probability of Moore-Crutchfield Measure Once Quantum Finite Automata (MO-QFA). We study the injectivity problem of determining if the acceptance probability function of a MO-QFA is injective over all input words, i.e., giving a distinct probability for each input word. We show that the injectivity problem is undecidable for 8 state MO-QFA, even when all unitary matrices and the projection matrix are rational and the initial state vector is real algebraic. We also show undecidability of this problem when the initial vector is rational, although with a huge increase in the number of states. We utilize properties of quaternions, free rotation groups, representations of tuples of rationals as linear sums of radicals and a reduction of the mixed modification of Post's correspondence problem, as well as a new result on rational polynomial packing functions which may be of independent interest.
description: Accepted journal version (with change of name from Acceptance Ambiguity for Quantum Automata)
Impact of Policy Promoting Tenant-Owner Right Equality on the Housing Market in Guangzhou
Creators: Zhang, Liying
Publisher: name: Columbia University
Year: 2019
Subjects: City planning
Housing
Housing policy
Housing--Prices
Rent

description: This research studies the impacts of a new policy promoting tenant-owner right equality on the housing market in Guangzhou through a case study of the Tianhe District. Taking datasets of monthly housing prices and rents, as well as residential complex information from 2016 to 2018 within Tianhe District, this research examines the changes in housing prices and rents that resulted from the implementation of the new policy with the use of multiple regression model and Difference-in-Difference (DID) model. The results generated from two multiple regression models show that the reputation of schools and transportation accessibility are two main influencing factors of house sales prices, while building age, transportation accessibility, and sales type are influencing factors of rents. And the results from the DID model suggest that the implementation of the new policy had increased the house sales prices, regardless of the educational reputation, despite it had little impact on the rent level. This finding is contrary to the government’s expectation of stabilizing housing prices, but could be understood through the findings from 18 interviews with residents in Tianhe District.
Additional file 1 of Illumina error correction near highly repetitive DNA regions improves de novo genome assembly
Creators: name: Heydari, Mahdi
name: Miclotte, Giles
name: Peer, Yves Van De
name: Fostier, Jan
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Plant Biology

description: Targeted Error Correction Improves the Assembly Results. (PDF 1261 kb)
On existence of nonformal simply connected symplectic manifolds
Creators: name: Babenko, Ivan K.
name: Taimanov, Iskander A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Examples of nonformal simply connected symplectic manifolds are constructed.
description: 2 pages, LaTeX
Geographical Labeling of Agri-Food Products and its Incidence on the Cross-Sectional Approach to Climate Change Impacts Assessment
Creators: name: Lungarska, Anna
name: Jayet, Pierre-Alain
name: Lungarska, Anna
name: Jayet, Pierre-Alain
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: cross-sectional approach
subject: climate change
subject: land rent
subject: agriculture
subject: labeling

description: The cross-sectional approach to the assessment of climate change impacts on agriculture is a widely used technique. It is based on land prices and supposes a perfect mobility of agricultural activities following climate evolution. Theory and our empirical study of the French land market show that land prices do not only reflect the land rent related to productivity. We argue, that geographical labeling represents a component of land prices which is space invariant. Thus, present rents related to geographical labeling cannot be transferred to new regions, as a cross-sectional analysis would suggest.
title: Appartenances et identifications à l’épreuve. Migrants en visite de retour à Cuba
title: Putting Belonging(s) and Identification(s) to the Test : Migrants on Return Visits to Cuba
Creators: name: Simoni, Valerio
Publisher: name: ethnographiques.org
Year: 2019
Subjects: Migration
Migrants
descendants d’émigrés
Voyage
Mobilité
Retours
Tourisme des racines
Tourisme diasporique
Tourisme mémoriel
Diaspora
Cuba
Ethnologie

description: Cet article s’intéresse aux visites de retour de migrant-e-s cubain-e-s à Cuba, et aux tensions que ces expériences génèrent en termes d’identification et de sentiment d’appartenance. L’analyse s’appuie sur un travail ethnographique de longue durée mené en Espagne et à Cuba. L’attention portée au décalage entre, d’une part, les aspirations et les positionnements des retournés et, d’autre part, la façon dont ils sont perçus et traités par leurs compatriotes à Cuba, permet de montrer comment identifications et appartenances sont mises en jeu, négociées et recadrées lors de ces visites de retour. L’expérience et l’évaluation de retrouvailles avec la famille, les amis, et le pays plus généralement, conduisent les migrants à repenser et réarticuler les paramètres de leur « être cubain » et de leur place à Cuba. L’analyse de ces « épreuves » du retour met en lumière l’important travail de renégociation d’idéaux et de moralités qui s’y joue, et qui conduit notamment à l’explicitation et à la refonte des notions de « cubanité », de famille, d’intimité, et de pratique économique.
description: This article looks at return visits of Cuban migrants to Cuba, and the tensions that these experiences generate in terms of identification and sense of belonging. The analysis is based on long-term ethnographic fieldwork conducted in Spain and Cuba. By focusing on disjunctures between the aspirations and positionings of returnees, and the way in which they are perceived and treated by their fellow nationals in Cuba, I show how identifications and belongings are played out, negotiated, and reframed in these return visits. The experience and assessment of relations with family, friends, and the country more generally leads migrants to rethink the parameters of their “being Cuban” and their place in Cuba. The analysis of such “tests” of returning sheds light on the important work of renegotiation of ideals and moralities that takes place, leading notably to the rearticulation and reworking of notions of "Cubanness", family, intimacy and economic practice.
Groundwater quality evaluations of mines
Creators: name: McCreadie, Hugh
name: Smith, Rod
Publisher: name: The University of British Columbia
Year: 2009

description: Groundwater quality is an aspect of mine reclamation that is now receiving increased attention. The potential impact of mines on groundwater quality can be estimated by considering: mine water sources; groundwater flowpaths; waste characteristics; groundwater geochemistry, and environmental impacts. Primary groundwater flowpaths are within the more permeable geologic materials. These flowpaths can transport a significant mass of contaminants even though they generally comprise a small proportion of the materials. Impacts include potential degradation of water quality in local aquifers, lakes and streams. Groundwater assessments can be carried out in four phases. Phase I consists of a review of existing data that are used to develop a preliminary hydrogeologic interpretation and define a Phase II field program. The preliminary interpretation is verified and a groundwater monitoring network is installed during the field program. The Phase I and Phase II data are amalgamated into a Phase III report, which documents the analysis and presents estimates of future impacts. Mine personnel, in Phase IV, collect and compile monitoring data that can be used to check the model estimates. In this manner, potential environmental liabilities are identified and the costs of remediation and/or mitigation are minimized.
Additional file 2 of Are malaria transmission-blocking vaccines acceptable to high burden communities? Results from a mixed methods study in Bo, Sierra Leone
Creators: name: McCoy, Kaci D.
name: Weldon, Caroline T.
name: Ansumana, Rashid
name: Lamin, Joseph M.
name: Stenger, David A.
name: Ryan, Sadie J.
name: Bardosh, Kevin
name: Jacobsen, Kathryn H.
name: Dinglasan, Rhoel R.
Publisher: name: figshare
Year: 2021
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Questionnaire.
Studies in contemporary Australian sculptural practice: Hilarie Mais and Fiona Hall
Creators: name: Sanders, Anne E.
Publisher: name: Canberra, ACT : The Australian National University
Year: 2011
Subjects: Contemporary Australian sculptural practice, sculptural practice, Theoretical framework, postmodernism, feminism, postcolonialism

description: The subject of this thesis is contemporary Australian sculptural practice. Within the limitations of a Master of Arts sub-thesis, it aims to provide an analysis of developments in contemporary Australian sculptural practice since 1980. This analysis is conducted within the context of the theoretical frameworks of postmodernism, feminism and postcolonialism. The first chapter seeks to establish a general overview and context, both nationally and internationally, for the significant changes and developments in contemporary sculptural practice in Australia. Specifically, three key theoretical concepts are identified as major protagonists of these changes. The second and third chapters seek to provide specific examples of these theoretical concepts identified in chapter one within the context of two monographic case studies of mid-career sculptors, Hilarie Mais and Fiona Hall.