cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
What the Milky Way bulge reveals about the initial metallicity gradients in the disc
Creators: name: Fragkoudi, F.
name: Di Matteo, P.
name: Haywood, M.
name: Khoperskov, S.
name: Gómez, A.
name: Schultheis, M.
name: Combes, F.
name: Semelin, B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the metallicity trends in the Milky Way (MW) bulge - using APOGEE DR13 data - and explore their origin by comparing two N-body models of isolated galaxies which develop a bar and a boxy/peanut (b/p) bulge. Both models have been proposed as scenarios for reconciling a disc origin of the MW bulge with a negative vertical metallicity gradient. The first model is a superposition of co-spatial, i.e. overlapping, disc populations with different scaleheights, kinematics and metallicities. In this model the thick, metal-poor, and centrally concentrated disc populations contribute significantly to the stellar mass budget in the inner galaxy. The second model is a single disc with an initial steep radial metallicity gradient, which is mapped by the bar into the b/p bulge in such a way that the vertical metallicity gradient of the MW bulge is reproduced -- as shown already in previous works in the literature. However, as we show here, the latter model does not reproduce the positive longitudinal metallicity gradient of the inner disc, nor the metal-poor innermost regions of the Bulge seen in the data. On the other hand, the model with co-spatial thin and thick disc populations reproduces all the aforementioned trends. We therefore see that it is possible to reconcile a (primarily) disc origin for the MW bulge with the observed trends in metallicity by mapping the inner thin and thick discs of the MW into a b/p. For this scenario to reproduce the observations, the $α$-enhanced, metal-poor, thick disc populations must have a significant mass contribution in the inner regions -- as has been suggested for the Milky Way.
description: 6 pages, accepted for publication in A&A Letters
Regeneration of Sensory Hair Cells and Progenitor Self-Renewal Require Localized Interactions Between the Notch and WNT Signaling Pathways
Creators: name: Romero-Carvajal, Marco Andres
Publisher: name: University of Utah
Year: 2019

description: Mechanosensory hair cell damage leads to permanent hearing loss. The zebrafish mechanosensory organs (neuromasts) are an excellent model for the study of hair cell regeneration. Neuromasts have a central group of sensory hair cells surrounded by support cells and the outermost mantle cells. While adult mammalian hair cells cannot regenerate, neuromast hair cells have the ability to do so via support cell proliferation. In this study, we used proliferation assays and lineage analyses that demonstrated the existence of proliferative compartments in the posterior lateral line neuromasts where support cells either self-renew or differentiate. These spatially restricted lineage decisions within the progenitor pool resemble the spatial heterogeneities within the intestinal crypt or the hair follicle niche that guide stem cell transit amplification or differentiation. In addition, we identified the mantle cells as a quiescent support cell pool that do not proliferate in response to selective hair cell ablation, but that re-enter the cell cycle when hair cell and support cells numbers are drastically reduced. By combining our lineage analysis with gene expression analyses, genetic manipulations, and the use of chemical inhibitors, we were able to dissect the roles of Notch and Wnt signaling during homeostasis and regeneration. We demonstrate that Notch signaling restricts hair cell differentiation and maintains the spatial pattern of support cell proliferation through Wnt signaling inhibition. iv Thus, Notch-Wnt signaling interactions are required to maintain pools of amplifying support cells in the poles and maintain tissue homeostasis by balancing self-renewal and differentiation.
Quantum superiority for verifying NP-complete problems with linear optics
Creators: name: Arrazola, Juan Miguel
name: Diamanti, Eleni
name: Kerenidis, Iordanis
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Demonstrating quantum superiority for some computational task will be a milestone for quantum technologies and would show that computational advantages are possible not only with a universal quantum computer but with simpler physical devices. Linear optics is such a simpler but powerful platform where classically-hard information processing tasks, such as Boson Sampling, can be in principle implemented. In this work, we study a fundamentally different type of computational task to achieve quantum superiority using linear optics, namely the task of verifying NP-complete problems. We focus on a protocol by Aaronson et al. (2008) that uses quantum proofs for verification. We show that the proof states can be implemented in terms of a single photon in an equal superposition over many optical modes. Similarly, the tests can be performed using linear-optical transformations consisting of a few operations: a global permutation of all modes, simple interferometers acting on at most four modes, and measurement using single-photon detectors. We also show that the protocol can tolerate experimental imperfections.
description: 10 pages, 6 figures, minor corrections, results unchanged
Additional file 1: of Effects of habitat suitability for vectors, environmental factors and host characteristics on the spatial distribution of the diversity and prevalence of haemosporidians in waterbirds from three Brazilian wetlands
Creators: name: Chahad-Ehlers, Samira
name: Fushita, Angela
name: Lacorte, Gustavo
name: Assis, Pamela
name: Lama, Silvia Del
Publisher: name: figshare
Year: 2018
Subjects: 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: Marine Biology
subject: Science Policy
subject: 60506 Virology
subject: Computational Biology

description: Table S1 Geographical coordinates of sampled sites where blood samples were collected from waterbirds nestlings and the suitability of habitat for avian haemosporidians vectors. Table S2 Summary information about MalAvi lineages included in the network analysis. (DOCX 23 kb)
Measurements of the cross sections for $e^+e^- \to {\rm hadrons}$ at 3.650, 3.6648, 3.773 GeV and the branching fraction for $ψ(3770)\to {\rm non-}D\bar D$
Creators: name: al., M. Ablikim et
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using the BES-II detector at the BEPC Collider, we measured the lowest order cross sections and the $R$ values ($R=σ^0_{e^+e^- \to {\rm hadrons}}/σ^0_{e^+e^- \to μ^+μ^-}$) for inclusive hadronic event production at the center-of-mass energies of 3.650 GeV, 3.6648 GeV and 3.773 GeV. The results lead to $\bar R_{uds}=2.224\pm 0.019\pm 0.089$ which is the average of these measured at 3.650 GeV and 3.6648 GeV, and $R=3.793\pm 0.037 \pm 0.190$ at $\sqrt{s}=3.773$ GeV. We determined the lowest order cross section for $ψ(3770)$ production to be $σ^{\rm B}_{ψ(3770)} = (9.575\pm 0.256 \pm 0.813)~{\rm nb}$ at 3.773 GeV, the branching fractions for $ψ(3770)$ decays to be $BF(ψ(3770) \to D^0\bar D^0)=(48.9 \pm 1.2 \pm 3.8)%$, $BF(ψ(3770) \to D^+ D^-)=(35.0 \pm 1.1 \pm 3.3)%$ and $BF(ψ(3770) \to D\bar{D})=(83.9 \pm 1.6 \pm 5.7)%$, which result in the total non-$D\bar D$ branching fraction of $ψ(3770)$ decay to be $BF(ψ(3770) \to {\rm non}-D\bar D)=(16.1 \pm 1.6 \pm 5.7)%$.
description: 11 pages, 5 figures
Reimagined Territory: A New Theory of Terrorist Geographies
Creators: name: Fuhriman, Christopher
Publisher: name: University of Utah
Year: 2019
Subjects: Geography

description: This research proposes a new theoretical concept of reimagined territory for application in the study of terrorism and other forms of political violence. Geographic theories of space and place, geopolitics, and multidisciplinary terrorism studies provide the theoretical framework for this dissertation. A mixed-method approach comprised of computer-aided content analysis, manual content analysis, cartographic visualization, and geographic narrative analysis is applied to ISIS's Dabiq magazine as a case study of the reimagined territory of a terrorist group. The results demonstrate the utility of the theoretical concept of reimagined territory in examining the ideology and goals of a given terrorist movement. A second case study of al Qaeda in the Arabian Peninsula's Inspire magazine validates the methodology and the general applicability of the theoretical concept. The computer-aided content analysis generates a list of terms sorted by frequency (high to low) and alphabetical order from each issue of Dabiq magazine. The manual content analysis extracts all geographic place names from the lists of terms and categorizes them into one of four categories based on geographic scale. The cartographic visualization then charts the geographic place names in a series of maps from each of the scale categories. Finally, the results from each previous stage inform the geographic narrative analysis, which also considers the original text of the magazines in explaining the ideology and geographic aims of the terror group. The way in which ISIS imagines the world to be when it has achieved its goals emerges from the narrative analysis as its reimagined territory. This research underscores the importance of considering the territoriality of terror groups and movements. The primary conclusions of this research are: 1) ISIS's geographic goal (reimagined territory) is the establishment of a Muslim state based on the territorial expanse of early Islamic caliphates and current Muslim lands; 2) AQAP's goal is the establishment of a Muslim state centered on the Levant and eventually expanding to include all Muslim lands; 3) the methodology employed in this study and theoretical concept of reimagined territory applies to any terror group seeking to control space.
Nucleon Form Factors in Nuclear Medium
Creators: name: Park, Chanyong
name: Lee, Jung Hun
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By using the AdS/CFT correspondence, we investigate various form factors between nucleons and mesons in a nuclear medium. In order to describe a nuclear medium holographically, we take into account the thermal charged AdS geometry with an appropriate IR cutoff. After introducing an anomalous dimension as a free parameter, we investigate how the nucleon's mass is affected by the change of the anomalous dimension. Moreover, we study how the form factors of nucleons rely on the properties of the nuclear medium. We show that in a nuclear medium with different numbers of proton and neutron, the degenerated nucleon form factor in the vacuum is split to four different values depending on the isospin charges of nucleon and meson.
description: 17 pages and 11 figures
Photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers
Creators: name: Lee, Ray-Kuang
name: Lai, Yinchieh
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers are studied based on the complex Ginzburg-Landau equation model. We find that, depending on their phase difference, the total photon-number noise of the bound soliton pair can be larger or smaller than that of a single soliton and the two solitons in the soliton pairs are with positive or negative photon-number correlation, correspondingly. It is predicted for the first time that out-of-phase soliton pairs can exhibit less noises due to negative correlation.
description: 3 pages, 3 figures
Reducing Loss in Implantable and Spacecraft Antenna Systems
Creators: name: Chrysler, Andrew Michael
Publisher: name: University of Utah
Year: 2019
Subjects: Electromagnetics
Electrical engineering

description: Antenna design and reduction of losses in antenna systems are critical for modern communications systems. Two categories of antennas suffer from limited power supply and difficult operating environments: implantable antennas and antennas for spacecraft applications. Minimizing and controlling losses in these two antenna types is critical for developing next-generation implantable devices, spacecraft, and satellites. Research suggests that future tattoo antennas will be made from low-conductivity ink utilizing the natural insulating property of the body's fat and lossy ground plane of muscle. This paper supports tattoo antenna work by: (1) demonstrating the insulating properties of fat and conductivity of muscle with various antenna systems, (2) showing the effect of biological materials on the current distribution of subdermal antennas, and (3) validating the use of lower-conductivity materials in subdermal antenna design including a novel gold nanoparticle material. Simulations and measurements are used to evaluate current distributions shared between solid, segmented, and meshed strip dipole antennas and surrounding body tissues. Fat insulates the antenna similar to a thin layer of plastic wrap. Muscle acts as a conductive ground plane. Dipole antennas with mesh or gap structures are more strongly coupled to body tissues than solid antennas. A minimum acceptable conductivity benchmark of 105 S/m is established for dipole antennas and Radio-Frequency Identification (RFID) antennas. This work also provides novel information on the design of low-cost, circularly polarized (CP), Ka-band (26 GHz), millimeter-wave, 50 Ω edge-fed, corners truncated patch antennas on RT/duroid 5880 (εr = 2.2, ½ oz. copper cladding). Microstrip feed width, axial ratio (AR) bandwidth, and best AR at 26 GHz are optimized by the use of 10 mil substrate. The effects of corner truncation are further investigated, showing that increasing corner truncation increases AR bandwidth, increases percent offset between best S11 and AR frequencies, and worsens the best AR. A truncation of 0.57 mm is a good compromise between these effects with AR bandwidth of 6.17 % (measured) and 1.37 % (simulated). Increasing ratio of substrate thickness to design frequency, t / λd, improves AR bandwidth. For t / λd below a certain threshold a corners truncated patch antenna will not produce CP. A new nearly-square, corners truncated patch antenna is measured and simulated as a method of increasing circular polarization bandwidth (CPBW).
Multiple scattering limit in optical microscopy
Creators: name: Badon, Amaury
name: Boccara, A. Claude
name: Lerosey, Geoffroy
name: Fink, Mathias
name: Aubry, Alexandre
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Optical microscopy offers a unique insight of biological structures with a sub-micrometer resolution and a minimum invasiveness. However, the inhomogeneities of the specimen itself can induce multiple scattering of light and optical aberrations which limit the observation to depths close to the surface. To predict quantitatively the penetration depth in microscopy, we theoretically derive the single-to-multiple scattering ratio in reflection. From this key quantity, the multiple scattering limit is deduced for various microscopic imaging techniques such as confocal microscopy, optical coherence tomography and related methods.
description: 18 pages, 7 figures
On the Extreme Positive Feedback Star-Forming Mode from Massive and Compact Superstar Clusters
Creators: name: Tenorio-Tagle, Guillermo
name: Silich, Sergiy
name: Gonzalez, Ary Rodriguez
name: Munoz-Tunon, Casiana
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The force of gravity acting within the volume occupied by young, compact and massive superstar clusters, is here shown to drive in situ all the matter deposited by winds and supernovae into several generations of star formation. These events are promoted by radiative cooling which drains the thermal energy of the ejected gas causing its accumulation to then rapidly exceed the gravitational instability criterion. A detailed account of the integrated ionizing radiation and mechanical luminosity as a function of time is here shown to lead to a new stationary solution. In this, the mass deposition rate $\dot M$, instead of causing a wind as in the adiabatic solution, turns into a positive feedback star-forming mode equal to the star formation rate. Some of the implications of this extreme positive feedback mode are discussed.
description: 4 pages, 4 figures, accepted for publication in The Astrophysical Journal Letters
Relationships Between Extreme Rain Rates and Convective Intensities from the Perspectives of Tropical Rainfall Measuring Mission and WSR-88D Radars
Creators: name: Gingrey, Alexandria C.
Publisher: name: University of Utah
Year: 2019
Subjects: Atmospheric sciences

description: Tropical Measuring Mission (TRMM) precipitation radar (PR) 2A25 V7 retrievals show that precipitation features (PFs) with the tallest maximum 40 dBZ echo heights are rarely the same PFs that exhibit the most extreme near-surface rainfall rates. To investigate the impacts of potential weaknesses in the 2A25 V7 retrievals, due to potential attenuation of the Ku-band signal, 14 years of June-August retrievals are compared to June-August 2014 hourly Weather Surveillance Radar - 1988 Doppler (WSR-88D) dual-polarimetric S-band data for 28 radars over the southeastern United States (SEUS). For more direct comparison, TRMM Ku-band measurements are converted to S-band approximations. Rain rates for WSR-88D data are approximated using the CSU-HIDRO algorithm, which calculates rain rates from reflectivity (Z), differential reflectivity (ZDR), and specific differential phase (KDP) relationships. This research aims to not only investigate the difference between TRMM PR and WSR-88D retrievals of reflectivity and rain rate, but also to investigate how apparent differences relate to TRMM path integrated attenuation (PIA), and WSR-88D KDP, ZDR and calculated hail fraction. Tropics-wide TRMM retrievals confirm previous findings of a low overlap of extreme convective intensity and extreme near-surface rain rates. WSR-88D data also confirm that this overlap is low, but show that it is likely higher than TRMM PR retrievals indicate, approximately 30% higher in the SEUS for the 99th percentiles of maximum 40 dBZ heights and low-level rain rates. For maximum 40 dBZ echo heights that extend into regions likely containing ice, mean WSR-88D reflectivities are approximately 2 dBZ higher than TRMM PR reflectivities. Higher WSR-88D-retrieved rain rates for a given low-level reflectivity combine with these higher low-level reflectivities to produce much greater mean WSR-88D rainfall rates than TRMM PR as a function of maximum 40 dBZ height, for heights that extend into regions likely to have ice. Investigations of TRMM PR PIA, and WSR-88D KDP, ZDR, and hail fraction indicate that the TRMM PR 2A25 V7 algorithm is possibly misidentifying low-mid level hail or graupel as greater attenuating liquid, or vice versa. This possible misidentification results in 2A25 V7 Z-R relationships that likely produce low biased rain rates in intense convection.
LO-FAT: Low-Overhead Control Flow ATtestation in Hardware
Creators: name: Dessouky, Ghada
name: Zeitouni, Shaza
name: Nyman, Thomas
name: Paverd, Andrew
name: Davi, Lucas
name: Koeberl, Patrick
name: Asokan, N.
name: Sadeghi, Ahmad-Reza
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Attacks targeting software on embedded systems are becoming increasingly prevalent. Remote attestation is a mechanism that allows establishing trust in embedded devices. However, existing attestation schemes are either static and cannot detect control-flow attacks, or require instrumentation of software incurring high performance overheads. To overcome these limitations, we present LO-FAT, the first practical hardware-based approach to control-flow attestation. By leveraging existing processor hardware features and commonly-used IP blocks, our approach enables efficient control-flow attestation without requiring software instrumentation. We show that our proof-of-concept implementation based on a RISC-V SoC incurs no processor stalls and requires reasonable area overhead.
description: Authors' pre-print version to appear in DAC 2017 proceedings
D.6.1 - Communication, Dissemination and Impact Strategy
Creators: name: Pollitzer, Elizabeth
Publisher: name: gEneSys Project
Year: 2023
Subjects: Dissemination Strategy
Science Communication
Stakeholder engagement

description: The overarching aim of the gEneSys dissemination and impact activities is to promote (through multiple communication channels), support (e.g., designing and organising participatory events), and enhance opportunities for exploitation of the work and of the results produced by gEneSys to demonstrate that the inclusion of gender equality and gender dimensions in energy transition processes are essential to achieving sustainable, equitable, just, and fair energy transition outcomes.
title: Note de recherche Bourgeois et Nizet (2015)
Creators: name: Moncorps, Florence
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021

description: Note de recherche de Bourgeois, É., & Nizet, J. (2015). Apprentissage et formation des adultes. P.U.F.
Restoration of oscillation in network of oscillators in presence of direct and indirect interactions
Creators: name: Majhi, Soumen
name: Bera, Bidesh K.
name: Bhowmick, Sourav K.
name: Ghosh, Dibakar
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: The suppression of oscillations in coupled systems may lead to several unwanted situations, which requires a suitable treatment to overcome the suppression. In this paper, we show that the environmental coupling in the presence of direct interaction, which can suppress oscillation even in a network of identical oscillators, can be modified by introducing a feedback factor in the coupling scheme in order to restore the oscillation. We inspect how the introduction of the feedback factor helps to resurrect oscillation from various kind of death states. We numerically verify the resurrection of oscillations for two paradigmatic limit cycle systems, namely Landau-Stuart and Van der Pol oscillators and also in generic chaotic Lorenz oscillator. We also study the effect of parameter mismatch in the process of restoring oscillation for coupled oscillators.
description: 10 pages(double column), 12 figures
Matter wave pulses characteristics
Creators: name: del Campo, A.
name: Muga, J. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the properties of quantum single-particle wave pulses created by sharp-edged or apodized shutters with single or periodic openings. In particular, we examine the visibility of diffraction fringes depending on evolution time and temperature; the purity of the state depending on the opening-time window; the accuracy of a simplified description which uses ``source'' boundary conditions instead of solving an initial value problem; and the effects of apodization on the energy width.
description: 11 pages, 11 figures
ATUAÇÃO SOCIOECONÔMICAS DAS CIDADES CIRCUNVIZINHAS SOBRE O ATENDIMENTO MÉDICO EM ITAGUATINS/TO
Creators: name: Elen Shery Silva DUARTE
name: Luciano da Silva GUEDES
name: Agda Rodrigues SANTOS
name: Midian Ferreira dos Santos SILVA
Publisher: name: Zenodo
Year: 2024
Subjects: Itaguatins/TO
Interdependência
Desenvolvimento local

description: RESUMO

 

Este estudo visa analisar a dependência de Itaguatins/TO em relação aos serviços médicos das cidades circunvizinhas, explorando os centros urbanos mais relevantes resultantes dessa interdependência, a saber, Augustinópolis/TO, Araguaína/TO e Imperatriz/MA. Embasado em dados da SES-TO (2022;2023) e do IBGE, a pesquisa fundamenta-se teoricamente nas perspectivas de desenvolvimento de Celso Furtado (1974) e Milton Santos (1977), entre outros, evidenciando a manifestação da desigualdade socioespacial e urbana que permeia a estruturação do país. Considerando a importância de estratégias e adaptação na distribuição de renda e acesso a serviços essenciais, como saúde, lazer, moradia, como parte integrante do processo de desenvolvimento local do município.
Discovery of the Binary Pulsar PSR B1259-63 in Very-High-Energy Gamma Rays around Periastron with H.E.S.S
Creators: name: Aharonian, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of very-high-energy (VHE) gamma-ray emission of the binary system PSR B1259-63/SS 2883 of a radio pulsar orbiting a massive, luminous Be star in a highly eccentric orbit. The observations around the 2004 periastron passage of the pulsar were performed with the four 13 m Cherenkov telescopes of the H.E.S.S. experiment, recently installed in Namibia and in full operation since December 2003. Between February and June 2004, a gamma-ray signal from the binary system was detected with a total significance above 13 sigma. The flux was found to vary significantly on timescales of days which makes PSR B1259-63 the first variable galactic source of VHE gamma-rays observed so far. Strong emission signals were observed in pre- and post-periastron phases with a flux minimum around periastron, followed by a gradual flux decrease in the months after. The measured time-averaged energy spectrum above a mean threshold energy of 380 GeV can be fitted by a simple power law F_0(E/1 TeV)^-Gamma with a photon index Gamma = 2.7+-0.2_stat+-0.2_sys and flux normalisation F_0 = (1.3+-0.1_stat+-0.3_sys) 10^-12 TeV^-1 cm^-2 s^-1. This detection of VHE gamma-rays provides unambiguous evidence for particle acceleration to multi-TeV energies in the binary system. In combination with coeval observations of the X-ray synchrotron emission by the RXTE and INTEGRAL instruments, and assuming the VHE gamma-ray emission to be produced by the inverse Compton mechanism, the magnetic field strength can be directly estimated to be of the order of 1 G.
description: 10 pages, 8 figures, accepted in Astronomy and Astrophysics on 2 June 2005, replace: document unchanged, replaced author field in astro-ph entry - authors are all members of the H.E.S.S. collaboration and three additional authors (99+3, see document)
Retinoic Acid and Epigenetic Regulation During the Development of the Zebrafish Intestine and in Cancer
Creators: name: Toth, Rachel Kathryn
Publisher: name: University of Utah
Year: 2019

description: The tumor suppressor APC is mutated in 85% of colon cancer cases. APC is necessary for normal colon homeostasis, and loss of APC function is the initiating event in colon cancer. APC is a crutial member of the β -catenin destruction complex, and it was long thought APC mutation causes disruption of this complex, removing the cell's ability to destroy excess β-catenin and activating β-catenin/Tcf/Lef-induced transcription. Recent studies, however, show that nuclear localization of β-catenin occurs only after the activation of k-ras, not during the initiation of tumorigenesis. Thus, APC must play additional roles that are disrupted when mutated to cause changes from normal colon homeostasis. In this dissertation, we utilize the apcmcr mutant zebrafish as a model to parallel the loss of APC in colon cancer to show that multiple epigenetic aberrations occur before the advent of nuclear β-catenin, showing that dysregulation of epigenetic marks correlates with the initiation of colon cancer progression. The data presented in this dissertation identify two epigenetic factors regulated by APC. We show that the histone demethylase LSD1 aberrantly represses retinoid biosynthesis, preventing terminal differentiation of the intestine. This highlights one of the epigenetic regulators that is misregulated when APC is lost and adds an epigenetic mechanism for the repression of rdh1l. We also show that in the apcmcr mutant zebrafish, retinoic acid loss causes decreased H3K27 methylation levels, adding another layer of epigenetic regulation controlled through RA. In this case, we uncover an epistatic mechanism wherein Cox-2 regulates H3K27 methylation, independent of its role in the regulation of β-catenin, when APC is mutated. We also used the developing zebrafish as a model to characterize the loss of the Ezh2, the histone methyltransferase responsible for H3K27 methylation. We show that loss of Ezh2 leads to several development phenotypes, including the loss of terminal differentiation of multiple cell types in the gut. Together, the data presented in this dissertation trace the epigenetic pathways used to both regulate retinoic acid production and used by retinoic acid to promote cellular differentiation and establish APC as a regulator of histone methylation during differentiation.
title: Barriers Behind Bars: Examining Gender Inequality in the Texas Prison Education System
Creators: name: Rice, Juliette
Publisher: name: University of Massachusetts Amherst
Year: 2023
Subjects: subject: Higher Education
subject: Prison Education and Reentry

description: This brief is one in a series aimed at providing higher education policymakers and advocates with an evidence base to address how to best serve students in light of the challenges facing higher education. This brief was authored by a University of Massachusetts Amherst student as a course assignment for EDUC 674B: Higher Education Policy and was reviewed for accuracy by Professor Ryan Wells.
title: ADCO, Boursier de Cîteaux : comptes (1489-1493) (11 H 1166), f. 00227
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: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Boursier de Cîteaux : comptes (1489-1493), Archives départementales de la Côte-d'Or, (11 H 1166), f. 00227, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Measurements of the braching fractions for psi(3770)--> D0D0-bar,D+D-,DD-bar$ and the resonance parameters of psi(3770) and psi(2S)
Creators: name: al., M. Ablikim et
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report measurements of the branching fractions for $ψ(3770)\to D^0 \bar D^0, D^+D^-, D\bar D$ and resonance parameters of $ψ(3770)$ and $ψ(2S)$. By analyzing the line-shapes of the cross sections for inclusive hadron, $D^0 \bar D^0$ and $D^+D^-$ event production in the range from 3.660 GeV to 3.872 GeV covering both $ψ(2S)$ and $ψ(3770)$ resonances, we extract the branching fractions for $ψ(3770)$ decay into $D^0\bar D^0 {\rm and} D^+D^-$ respectively to be $B(ψ(3770)\to D^0 \bar D^0)=(46.7 \pm 4.7 \pm 2.3)%$ and $B(ψ(3770)\to D^+ D^-)=(36.9 \pm 3.7 \pm 2.8)%$, which give $B(ψ(3770)\to D \bar D)=(83.6 \pm 7.3 \pm 4.2)%$ and non-$D\bar D$ branching fraction of $ψ(3770)$ to be $B(ψ(3770)\to non-D \bar D)=(16.4 \pm 7.3 \pm 4.2)%$. We meanwhile obtain the resonance parameters of $ψ(3770)$ and $ψ(2S)$ to be $M_{ψ(3770)}=3772.2 \pm 0.7 \pm 0.3$ MeV, $Γ^{\rm tot}_{ψ(3770)}=26.9 \pm 2.4 \pm 0.3$ MeV and $Γ^{ee}_{ψ(3770)}=251 \pm 26 \pm 11$ eV; $M_{ψ(2S)}=3685.5 \pm 0.0 \pm 0.3$ MeV, $Γ^{\rm tot}_{ψ(2S)}=331 \pm 58 \pm 2$ keV and $Γ^{ee}_{ψ(2S)}=2.330 \pm 0.036 \pm 0.110$ keV; as well as the $R$ value for the light hadron production directly through one photon annihilation to be $R_{uds}=2.262\pm 0.054\pm 0.109$ in this energy region.
description: 7 pages, 4 figures
Critical behavior of the 2D Ising model modulated by the Octonacci sequence
Creators: name: Alves, G. A.
name: Vasconcelos, M. S.
name: Alves, T. F. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigated the Ising model on a square lattice with ferro and antiferromagnetic interactions modulated by the quasiperiodic Octonacci sequence in both directions of the lattice. We have applied the Replica Exchange Monte Carlo (Parallel Tempering) technique to calculate the thermodynamic quantities of the system. We obtained the order parameter, the associated magnetic susceptibility ($χ$) and the specific heat $(c)$ in order to characterize the universality class of the phase transition. Also, we use the finite size scaling method to obtain the critical temperature of the system and the critical exponents $β$, $γ$ and $ν$. In the low temperature limit we have obtained a continuous transition with critical temperature around $T_{c} \approx 1.413$. The system obeys the Ising universality class with logarithmic corrections. We found estimatives for the correction exponents $\hatβ$, $\hatγ$ and $\hatλ$ by using the finite size scaling technique.
description: 15 pages, 8 Figures
Canonical quantization of nonlinear many body systems
Creators: name: Scarfone, A. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the quantization of a classical system of interacting particles obeying a recently proposed kinetic interaction principle (KIP) [G. Kaniadakis, Physica A {\bf 296}, 405 (2001)]. The KIP fixes the expression of the Fokker-Planck equation describing the kinetic evolution of the system and imposes the form of its entropy. In the framework of canonical quantization, we introduce a class of nonlinear Schrödinger equations (NSEs) with complex nonlinearities, describing, in the mean field approximation, a system of collectively interacting particles whose underlying kinetics is governed by the KIP. We derive the Ehrenfest relations and discuss the main constants of motion arising in this model. By means of a nonlinear gauge transformation of third kind it is shown that in the case of constant diffusion and linear drift the class of NSEs obeying the KIP is gauge-equivalent to another class of NSEs containing purely real nonlinearities depending only on the field $ρ=|ψ|^2$.
description: 35 pages, RevTeX4, no figures
title: 01_2424
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Relative contributions of precipitation-induced melt feedbacks to regional glacier mass balance in High Mountain Asia
Creators: name: Johnson, Eric Scott
Publisher: name: University of Utah
Year: 2019
Subjects: Geography
Climate Change

description: Due to their high sensitivity to changes in climate, alpine glaciers are one of the best natural indicators of climate change. Despite this, some of the underlying processes that control glacier response to climate change are not well understood. One potentially important set of such processes are feedback mechanisms that amplify and dampen melt. Though these feedbacks are widely recognized as important processes affecting glacier mass balances, little has been done to quantify their effects in a systematic way. This study develops a fully distributed surface energy and mass balance model to quantify the contributions of three precipitation-induced melt feedbacks to glacier mass balance. Specifically, we focus on feedbacks associated with sensible heat of liquid rain, snowpack thickness, and frequency of snowfall events. The model follows well-known energy balance methods, but includes "switches" that allow individual feedbacks to be turned off. The model utilizes an idealized glacier and meteorological inputs from the High Asia Refined analysis for two different climate regions in High Mountain Asia (HMA). The results show that melt feedbacks can nearly triple melt due to a +1°C temperature forcing scenario. System gains are highest near the equilibrium line altitude (ELA). Furthermore, system gains due to melt feedbacks depend most on the frequency of snowfall events that occur concurrently with the melt season. These results highlight the potential significance of melt feedbacks on glacier mass balance, how this may vary across differing climatic regions, and the need to further explore feedbacks associated with other glacier surface processes.
Endometriose: Aspectos relevantes para o cuidado
Creators: name: Porreca, Anna Christina de Almeida
name: Zveiter, Marcele
name: Britto, Alan Messala de Aguiar
name: Oliveira, Débora Cecília Chaves de Oliveira
name: Dias, Midian Oliveira
name: Medina, Edymara Tatagiba
name: Pereira, Renata Martins da Silva
Publisher: name: Zenodo
Year: 2024
Subjects: Endometriose

description: Este conjunto de slides é apresentado em aulas da Área da Mulher, no 7º período da Graduação em Enfermagem da Faculdade de Enfermagem da Universidade do estado do Rio de Janeiro.
Delord K, Barbraud C, Weimerskirch H (2023). The challenges of independence: ontogeny of at-sea behaviour in a long-lived seabird. PCI in Ecology. https://doi.org/10.24072/pci.ecology.100405. Supplementary.
Creators: name: Delord, Karine
name: Barbraud, Christophe
name: Weimerskirch, Henri
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310301
subject: Behavioural ecology
classificationCode: 310307
subject: Population ecology

description: Supplementary materials. Delord K, Barbraud C, Weimerskirch H (2023). The challenges of independence: ontogeny of at-sea behaviour in a long-lived seabird. PCI in Ecology. https://doi.org/10.24072/pci.ecology.100405
Evolution of inverse cascades and formation of precondensate in Gross-Pitaevskii turbulence in two dimensions
Creators: name: Vladimirova, Natalia
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Other Condensed Matter (cond-mat.other)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Here we study how coherence appears in a system driven by noise at small scales. In the wave turbulence modeled by the Gross-Pitaevskii / nonlinear Schrödinger equation, we observe states with correlation scales less than the system size but much larger than the excitation scale. We call such state precondensate to distinguish it from condensate defined as a system-wide coherent state. Both condensate and precondensate are characterized by large scale phase coherence and narrow distribution of amplitudes. When one excites small scales, precondensate is achieved relatively quickly by an inverse cascade heating quasi-equilibrium distribution of large-scale modes. The transition from the precondensate to the system-wide condensate requires much longer time. The spectra of precondensate differ from quasi-equilibrium and are characterized by two bending points, one on the scale of the average distance between vortex pairs, and the other on the scale of the distance between vortices in a pair. We suggest temporal evolution laws for both lengths and use them to predict the probability of the transition to condensate.
description: 10 pages, 13 figures
Analytic Gravitational-Force Calculations for Models of the Kuiper Belt, with Application to the Pioneer Anomaly
Creators: name: Nieto, Michael Martin
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use analytic techniques to study the gravitational force that would be produced by different Kuiper-Belt mass distributions. In particular, we study the 3-dimensional rings (and wedge) whose densities vary as the inverse of the distance, as a constant, as the inverse-squared of the distance, as well as that which varies according to the Boss-Peale model. These analytic calculations yield physical insight into the physics of the problem. They also verify that physically viable models of this type can produce neither the magnitude nor the constancy of the Pioneer anomaly.
description: 11 pages, 8 figures, final corrections for publication
The higher spin Laplace operator in several vector variables
Creators: name: Eelbode, David
name: Raeymaekers, Tim
name: Roels, Matthias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: Complex Variables (math.CV)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, an explicit expression is obtained for the conformally invariant higher spin Laplace operator $\mathcal{D}_λ$, which acts on functions taking values in an arbitrary (finite-dimensional) irreducible representation for the orthogonal group with integer valued highest weight. Once an explicit expression is obtained, a special kind of (polynomial) solutions of this operator is determined.
Gauss Law Constraints in Chern-Simons Theory From BRST Quantization
Creators: name: Chaichian, M.
name: Chen, W. F.
name: Zhu, Z. Y.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The physical state condition in the BRST quantization of Chern-Simons field theory is used to derive Gauss law constraints in the presence of Wilson loops, which play an important role in explicitly establishing the connection of Chern-Simons field theory with 2-dimensional conformal field theory.
description: Some typetwritten errors have been corrected. A few formulas have been modified to make the arguments clear. A little English have been re-edited
Inner warm disk of ESO H$α$ 279A revealed by NA I and CO overtone emission lines
Creators: name: Lyo, A-Ran
name: Kim, Jongsoo
name: Lee, Jae-Joon
name: Kim, Kyoung-Hee
name: Kang, Jihyun
name: Byun, Do-Young
name: Mace, Gregory
name: Sokal, Kimberly R.
name: Park, Chan
name: Moo-Young
name: Oh, Heeyoung
name: Yu, Young Sam
name: Oh, Jae Sok
name: Jeong, Ueejeong
name: Kim, Hwihyun
name: Pak, Soojong
name: Hwang, Narae
name: Park, Byeong-Gon
name: Lee, Sungho
name: Kaplan, Kyle
name: Lee, Hye-In
name: Le, Huynh Anh Nguyen
name: Jaffe, Daniel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present analysis of near-infrared, high-resolution spectroscopy towards the Flat-spectrum YSO (Young Stellar Object) ESO H$α$ 279a (1.5 solar mass) in the Serpens star forming region, at the distance of 429 pc. Using the Immersion GRating INfrared Spectrometer (IGRINS, R=45,000), we detect emission lines originating from the accretion channel flow, jet, and inner disk. Specifically, we identify hydrogen Brackett series recombination, [Fe II], [Fe III], [Fe IV], Ca I, Na I, H2, H2O and CO overtone emission lines. By modeling five bands of CO overtone emission lines, and the symmetric double-peaked line profile for Na I emission lines, we find that ESO H$α$ 279a has an actively accreting Keplerian disk. From our Keplerian disk model, we find that Na I emission lines originate between 0.04 AU and 1.00 AU, while CO overtone emission lines are from the outer part of disk, in the range between 0.22 AU and 3.00 AU. It reveals that the neutral atomic Na gas is a good tracer of the innermost region of the actively accreting disk. We derive a mass accretion rate of 2-10x10^{-7} M_solar/yr from the measured Br_gamma emission luminosity of 1.78(+-0.31)x10^{31} erg/s.
description: 18 pages, 8 figures, and 1 table
The Beam--Charge Azimuthal Asymmetry and Deeply Virtual Compton Scattering
Creators: name: The HERMES Collaboration
name: Airapetian, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The first observation of an azimuthal cross--section asymmetry with respect to the charge of the incoming lepton beam is reported from a study of hard exclusive electroproduction of real photons. The data have been accumulated by the HERMES experiment at DESY, in which the HERA 27.6 GeV electron or positron beam scattered off an unpolarized hydrogen gas target. The observed asymmetry is attributed to the interference between the Bethe--Heitler process and the Deeply Virtual Compton Scattering (DVCS) process. The interference term is sensitive to DVCS amplitudes, which provide the most direct access to Generalized Parton Distributions.