cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kinematics of a relativistic particle with de Sitter momentum space
Creators: name: Arzano, Michele
name: Kowalski-Glikman, Jerzy
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss kinematical properties of a free relativistic particle with deformed phase space in which momentum space is given by (a submanifold of) de Sitter space. We provide a detailed derivation of the action, Hamiltonian structure and equations of motion for such free particle. We study the action of deformed relativistic symmetries on the phase space and derive explicit formulas for the action of the deformed Poincare' group. Finally we provide a discussion on parametrization of the particle worldlines stressing analogies and differences with ordinary relativistic kinematics.
description: RevTeX, 12 pages, no figures
Pure Project Dissemination and Exploitation Plan
Creators: name: Barbosa, Arménio JM
name: Dias, Ana Margarida GC
name: Roque, Ana Cecília A.
Publisher: name: Zenodo
Year: 2021
Subjects: Dissemination and exploitation plan
DEP
Pure
Fet-Open

description: The following document is the Deliverable 5.4 “Dissemination and Exploitation Plan” (DEP) of the PURE Project, funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement Number 899732.
 This document is the first version of the DEP, consisting of preliminary information regarding the actions taken by the Consortium and the Coordinator to meet the obligations on dissemination and exploitation decided in the Grant Agreement. The dissemination and exploitation plans are reported, along with the stakeholder and impact analyses, the guidelines and monitoring of the dissemination and exploitation activities. The project’s Data Management and Intellectual Property Rights Plans are also considered and bound to the DEP. The DEP is expected to develop during the project duration, therefore updated versions of this document will be made available over the project execution.
description: {"references": ["10.5281/zenodo.5503931"]}
Black Silicon with high density and high aspect ratio nanowhiskers
Creators: name: Kalem, S
name: Werner, P
name: Arthursson, Ö
name: Talalaev, V
name: Nilsson, B
name: Hagberg, M
name: Frederiksen, H
name: Södervall, U
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Physical properties of black Silicon (b-Si) formed on Si wafers by reactive ion etching in chlorine plasma are reported in an attempt to clarify the formation mechanism and the origin of the observed optical and electrical phenomena which are promising for a variety of applications. The b-Si consisting of high density and high aspect ratio sub-micron length whiskers or pillars with tip diameters of well under 3 nm exhibits strong photoluminescence (PL) both in visible and infrared, which are interpreted in conjunction with defects, confinement effects and near band-edge emission. Structural analysis indicate that the whiskers are all crystalline and encapsulated by a thin Si oxide layer. Infrared vibrational spectrum of Si-O-Si bondings in terms of transverse-optic (TO) and longitudinal-optic (LO) phonons indicates that disorder induced LO-TO optical mode coupling can be an effective tool in assessing structural quality of the b-Si. The same phonons are likely coupled to electrons in visible region PL transitions. Field emission properties of these nanoscopic features are demonstrated indicating the influence of the tip shape on the emission. Overall properties are discussed in terms of surface morphology of the nano whiskers.
Pouteria rodriguesiana Pires & T. D. Penn.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Ericales
Sapotaceae
Pouteria
Pouteria rodriguesiana

description: [1680] Pouteria rodriguesiana Pires & T.D.Penn.
 Fl. Neotrop. Monogr. 52: 379 [26 Apr. 1990] (Pires & Pennington 1990).
NOTE. — Known only from the Guiana Shield.
VERNACULAR NAMES. — Pa: uu-kamwi, uu-kamwi-seine • Te: wɨla pɨtãg hun • Nt: nyanboka • Br: abiu-maparajúba.
 HERBARIUM DATA (FG). — 17 collections at CAY. Sel. exs.: B. Maguire et al. 47097 (holo-, K [K000994418, K000994419]; iso-, NY [01212902], US [00516534]).
INVENTORY DATA (FG). — 70 trees in 29 plots; Fmax = 2.4 %; dbhinv = 80 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 701, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Hybrid Model for Solving Multi-Objective Problems Using Evolutionary Algorithm and Tabu Search
Creators: name: Hajlaoui, Rjab
name: Gzara, Mariem
name: Dammak, Abdelaziz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper presents a new multi-objective hybrid model that makes cooperation between the strength of research of neighborhood methods presented by the tabu search (TS) and the important exploration capacity of evolutionary algorithm. This model was implemented and tested in benchmark functions (ZDT1, ZDT2, and ZDT3), using a network of computers.
description: 5 pages
Driven by Drones: Improving Mangrove Extent Maps Using High-Resolution Remote Sensing.
Creators: name: Hsu, Astrid
name: Kumagai, Joy
name: Favoretto, Fabio
name: Dorian, John
name: Guerrero Martinez, Benigno
name: Aburto-Oropeza, Octavio
Publisher: name: UNESCO/IOC
Year: 2020
Subjects: subject: Drone
subject: UAV
subject: Unmanned aerial vehicles
subject: Mangrove monitoring
subject: Geographic Information Systems (GIS)
subject: Convolution
subject: Area correction
subject: International committments
subject: Parameter Discipline::Environment
subject: Data Management Practices::Data acquisition
subject: Data Management Practices::Data analysis

description: This study investigated how different remote sensing techniques can be combined to accurately monitor mangroves. In this paper, we present a framework to use drone imagery to calculate correction factors which can improve the accuracy of satellite-based mangrove extent. We focus on semi-arid dwarf mangroves of Baja California Sur, Mexico, where the mangroves tend to be stunted in height and found in small patches, as well as larger forests. Using a DJI Phantom 4 Pro, we imaged mangroves and labeled the extent by manual classification in QGIS. Using ArcGIS, we compared satellite-based mangrove extent maps from Global Mangrove Watch (GMW) in 2016 and Mexico’s national government agency (National Commission for the Knowledge and Use of Biodiversity, CONABIO) in 2015, with extent maps generated from in situ drone studies in 2018 and 2019. We found that satellite-based extent maps generally overestimated mangrove coverage compared to that of drone-based maps. To correct this overestimation, we developed a method to derive correction factors for GMW mangrove extent. These correction factors correspond to specific pixel patterns generated from a convolution analysis and mangrove coverage defined from drone imagery. We validated our model by using repeated k-fold cross-validation, producing an accuracy of 98.3% ± 2.1%. Overall, drones and satellites are complementary tools, and the rise of machine learning can help stakeholders further leverage the strengths of the two tools, to better monitor mangroves for local, national, and international management.
Qualea acuminata Spruce ex Warm.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Vochysiaceae
Qualea
Qualea acuminata

description: [1789] Qualea acuminata Spruce ex Warm.
 Fl. Bras. [Martius] 13 (2): 40 [1 Mar. 1875] (Warming 1875).
 Qualea speciosa Huber, Bol. Mus. Paraense Hist. Nat. Ethnogr. 3: 425 (Huber 1902).
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: F.M.R. Leprieur 284 (P[P04660120]).
SIZE. — Up to 20 m tall (Marcano-Berti 1998).
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 722, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Setting the scale of the p p and p bar p total cross sections using AdS/QCD
Creators: name: Domokos, Sophia K.
name: Harvey, Jeffrey A.
name: Mann, Nelia
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper is an addendum to our earlier paper \cite{pom} where we computed the Pomeron contribution to $p ~ p$ and $p ~ \bar p$ scattering in AdS/QCD. The model of \cite{pom} depends on four parameters: the slope and intercept of the Pomeron trajectory $α'_c, α_c(0)$, a mass scale $M_d$ which determines a form factor entering into matrix elements of the energy-momentum tensor, and a coupling $λ_{\cal P}$ between the lightest spin $2$ glueball and the proton which sets the overall scale of the total cross section. Here we perform a more detailed computation of $λ_{\cal P}$ in the Sakai-Sugimoto model using the construction of nucleons as instantons of the dual 5d gauge theory and an effective 5d fermion description of these nucleons which has been successfully used to compute a variety of nucleon-meson couplings. We find $λ_{\cal P,{\rm SS}} \simeq 6.38 ~ {\rm GeV}^{-1}$ which is in reasonable agreement with the value $λ_{{\cal P},{\rm fit}} = 8.28 ~ {\rm GeV}^{-1}$ determined by fitting single Pomeron exchange to data.
description: 8 pages
Ground-State Fidelity and Kosterlitz-Thouless Phase Transition for Spin 1/2 Heisenberg Chain with Next-to-the-Nearest-Neighbor Interaction
Creators: name: Wang, Hong-Lei
name: Chen, Ai-Min
name: Li, Bo
name: Zhou, Huan-Qiang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Kosterlitz-Thouless transition for the spin 1/2 Heisenberg chain with the next-to-the-nearest-neighbor interaction is investigated in the context of an infinite matrix product state algorithm, which is a generalization of the infinite time-evolving block decimation algorithm [G. Vidal, Phys. Rev. Lett. \textbf{98}, 070201 (2007)] to accommodate both the next-to-the-nearest-neighbor interaction and spontaneous dimerization. It is found that, in the critical regime, the algorithm automatically leads to infinite degenerate ground-state wave functions, due to the finiteness of the truncation dimension. This results in \textit{pseudo} symmetry spontaneous breakdown, as reflected in a bifurcation in the ground-state fidelity per lattice site. In addition, this allows to introduce a pseudo-order parameter to characterize the Kosterlitz-Thouless transition.
description: 4 pages, 4 figures
Actos oficiales del Colegio
Creators: name: Universidad del Rosario
Publisher: name: Universidad del Rosario
Year: 1905

description: Actos oficiales del Colegio, en donde se comunica el nombramiento de Liborio Zerda como consiliario del Colegio, el registro de la muerte de Hipólito Valenzuela y el acuerdo entre el gobierno de la república y la consiliatura del Colegio de establecer en el Colegio Mayor de Nuestra Señora Del Rosario un internado para los estudiantes becados en la Universidad Nacional.
Detection of C60 in the proto-planetary nebula IRAS 01005+7910
Creators: name: Zhang, Yong
name: Kwok, Sun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the first detection of buckminsterfullerene (C60) in a proto-planetary nebula (PPN). The vibrational transitions of C60 at 7.0, 17.4, and 18.9um are detected in the Spitzer/IRS spectrum of IRAS 01005+7910. This detection suggests that fullerenes are formed shortly after the asymptotic giant branch but before the planetary nebulae stage. A comparison with the observations of C60 in other sources is made and the implication on circumstellar chemistry is discussed.
description: 14 pages, 4 figures, accepted for publication in ApJ
As potencialidades da implementação de atividades práticas de caráter investigativo e interdisciplinar em ciências no 1.º ciclo
Creators: name: Correia, Marisa
name: Dias, Diana
Publisher: name: Escola Superior de Educação de Paula Frassinetti - CIPAF
Year: 2015
Subjects: Atividades de investigação; ensino de ciências; interdisciplinaridade; 1.º Ciclo do Ensino Básico.

description: O estudo analisa o contributo das atividades de investigação em ciências e da interdisciplinaridade na promoção das aprendizagens dos alunos. Trata-se de uma investigação na própria prática em contexto de estágio, realizado numa escola do 1.º Ciclo do Ensino Básico do Concelho de Santarém. Utilizaram-se como técnicas de recolha de dados a observação participante e a análise documental. Os resultados demonstraram inúmeras potencialidades da implementação de atividades práticas de caráter investigativo e interdisciplinar nas aprendizagens dos alunos. Para além disso, evidenciaram o desenvolvimento dos conhecimentos didáticos da futura professora e alterações na forma como conceptualiza os papéis em sala de aula.
description: Saber & Educar, n. 20 (2015): Perspetivas didáticas e metodológicas no Ensino Básico
Notes on factor-criticality, extendibility and independence number
Creators: name: Zhang, Zan-Bo
name: Lou, Dingjun
name: Zhang, Xiaoyan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C70

description: In this paper, we give a sufficient and necessary condition for a $k$-extendable graph to be $2k$-factor-critical when $k=ν/4$, and prove some results on independence numbers in $n$-factor-critical graphs and $k\frac{1}{2}$-extendable graphs.
description: This paper has been published on Ars Combinatoria
Vochysia densiflora Warm.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Vochysiaceae
Vochysia
Vochysia densiflora

description: [1800] Vochysia densiflora Spruce ex Warm.
(Fig. 60D)
 Fl. Bras. [Martius] 13 (2): 101 [1 Mar. 1875] (Warming 1875 ).
VERNACULAR NAMES. — Ka: tapilen kuwalɨ• Wp: kwalɨpilã, kwalɨ pɨtã • Wn: kanawaimë • Nt: wana kwali • Cr: kwali.
 HERBARIUM DATA (FG). — 8 collections at CAY. Sel. exs.: D. Sabatier et al. 6272.
INVENTORY DATA (FG). — 20 trees in 7 plots; Fmax = 1.4 %; dbhinv = 112.7 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 724, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Simple loop integrals and amplitudes in N=4 SYM
Creators: name: Drummond, J. M.
name: Henn, J. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use momentum twistors to evaluate planar loop integrals. Infrared divergences are regulated by the recently proposed AdS-inspired mass regulator. We show that two-loop amplitudes in N=4 super Yang-Mills can be expanded in terms of basis integrals having twistor numerators. We argue that these integrals are considerably simpler compared to the ones conventionally used. Our case in point is the two-loop six-point MHV amplitude. We present analytical results for the remainder function in a kinematical limit, and find agreement with a recent Wilson loop computation. We also provide two-loop evidence that the logarithm of MHV amplitudes can be written in terms of simple twistor space integrals.
description: 27 pages, 5 figures
Vochysia vismiifolia Spruce ex Warm.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Myrtales
Vochysiaceae
Vochysia
Vochysia vismiifolia

description: [1811] Vochysia vismiifolia Spruce ex Warm.
 Fl. Bras. [Martius] 13 (2): 99 [1 Mar. 1875] (Warming 1875), “ vismiaefolia ”.
 NOTE. — Hyperdominant in Amazonia (ter Steege et al. 2020).
VERNACULAR NAMES. — Br: quaruba-vermelha.
 HERBARIUM DATA (FG). — 2 collections at CAY. Sel. exs.: J.-J. de Granville 5550.
INVENTORY DATA (FG). — 10 trees in 5 plots; Fmax <1 %; dbhinv = 43.6 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 725, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Historias y cuentos recopilados para los alumnos del Colegio de Nuestra Señora del Rosario
Creators: name: [Autor desconocido]
Publisher: name: Universidad del Rosario
Year: 1915

description: Acabamos de leer este librito, editado con toda la elegancia propia de la casa de Arboleda y Valencia. No son todas las piezas que lo componen originales, pero las que no son del doctor Carrasquilla...
U.S. Catholic ecumenism - ten years later.
Creators: name: Baum, William W.
Publisher: name: University of Notre Dame
Year: 2023

description:
 pt. 1.--Data from 130 respondents, with commentary.--pt. 2. Studies from 16 areas in the U.S.A.
 Part 1: Data from 130 respondents, with Commentary. Part 2: Studies from 16 areas in the U.S.A.
Desenvolvendo competências investigativas em Estudo do Meio no 1.º CEB: abordagens a partir da didática da História e da Geografia.
Creators: name: Dias, Alfredo Gomes
name: Hortas, Maria João
Publisher: name: Escola Superior de Educação de Paula Frassinetti - CIPAF
Year: 2015
Subjects: atividades investigativas; ensino da Geografia; ensino da História; formação de professores; competências investigativas.

description: Na Escola Superior de Educação de Lisboa, na formação inicial de professores do 1.º Ciclo do Ensino Básico (dos 6 aos 10 anos), as Unidades Curriculares (UC) do âmbito da didática da História e da Geografia preconizam o desenvolvimento de competências para a prática de atividades investigativas. Partimos da hipótese de que a introdução de experiências investigativas no ensino e aprendizagem da História e da Geografia resulta das competências desenvolvidas na prática da investigação. Para este estudo propomo-nos analisar (1) as fichas curriculares de cada uma das UC do curso de mestrado que habilita para a docência naquele nível de ensino; (2) os relatórios da Prática de Ensino Supervisionada, realizados pelos estudantes, que ilustram as competências investigativas que estes desenvolvem nos seus alunos.
description: Saber & Educar, n. 20 (2015): Perspetivas didáticas e metodológicas no Ensino Básico
Josephson currents in point contacts between dirty two-band superconductors
Creators: name: Yerin, Y. S.
name: Omelyanchouk, A. N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We developed microscopic theory of Josephson effect in point contacts between dirty two-band superconductors. The general expression for the Josephson current, which is valid for arbitrary temperatures, is obtained. This expression was used for calculation of current-phase relations and temperature dependences of critical current with application to MgB2 superconductor. Also we have considered influence on contact characteristics interband scattering effect appeared in case of dirty superconductors. It is shown that the correction to Josephson current due to the interband scattering depends on phase shift in the banks (i.e. s- or s+/- -wave symmetry of order parameters)
description: 11 pages, 3 figures Submitted to Low. Temp. Phys
Building Community Through Transforming 17th Century Barns in Kirchzarten, Germany
Creators: name: Süppel, Petra
name: Sutter, Willi
name: Manz, Angelika
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Public libraries – Germany
subject: Library buildings – Design and construction
subject: Barns – Remodelling for other use
subject: Multimedia library services
subject: 020 Bibliotheks- und Informationswissenschaften

description: The renovated barns of Talvogtei, a former moated castle, in Kirchzarten in south-western Germany constitute compelling examples of the value of transforming historic buildings no longer in use for their original purposes to new meaningful public use. In the view of both users and visitors, the tension generated between the modern and the historic structural elements creates a strong aesthetic impact. The chapter discusses the conversion of the one-time barns into the Mediathek/Multimedia Centre/Library in Kirchzarten as one way in which municipalities deal effectively with their architectural heritage. The concept brief developed for the Kirchzarten Mediathek/Multimedia Centre/Library describes it as a third place (Oldenburg and Brissett 1982) in a community of 10,000 inhabitants.
Search for Extratidal Features Around 17 Globular Clusters in the Sloan Digital Sky Survey
Creators: name: Jordi, Katrin
name: Grebel, Eva K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The dynamical evolution of a single globular cluster and also of the entire Galactic globular cluster system has been studied theoretically in detail. In particular, simulations show how the 'lost' stars are distributed in tidal tails emerging from the clusters. We investigate the distribution of Galactic globular cluster stars on the sky to identify such features like tidal tails. The Sloan Digital Sky Survey provides consistent photometry of a large part of the sky to study the projected two dimensional structure of the 17 globular clusters in its survey area. We use a color-magnitude weighted counting algorithm to map (potential) cluster member stars on the sky. We recover the already known tidal tails of Pal 5 and NGC 5466. For NGC 4147 we have found a two arm morphology. Possible indications of tidal tails are also seen around NGC 5053 and NGC 7078, supporting earlier suggestions. Moreover, we find potential tails around NGC 5904 and Pal 14. Especially for the Palomar clusters than Pal 5, deeper data are needed in order to confirm or to rule out the existence of tails. For many of the remaining clusters in our sample we observe a pronounced extratidal halo, which is particularly large for NGC 7006 and Pal 1. In some cases, the extratidal halos may be associated with the stream of the Sagittarius dwarf spheroidal galaxy (e.g.,NGC 4147, NGC 5024, NGC 5053).
description: Accepted by A&A, 24 pages, 24 figures
O trabalho de grupo como fator potenciador da integração curricular no 1.º ciclo do ensino básico
Creators: name: Pereira, Cândida
name: Cardoso, Ana Paula
name: Rocha, João
Publisher: name: Escola Superior de Educação de Paula Frassinetti - CIPAF
Year: 2015
Subjects: Integração curricular, trabalho de grupo, 1.º Ciclo do Ensino Básico (1.º CEB), professores

description: Esta investigação visa perceber se o trabalho de grupo poderá ser uma estratégia potenciadora de integração curricular o 1.º Ciclo do Ensino Básico (1.º CEB). Para isso, efetuou-se uma investigação de caráter descritivo, com recurso ao inquérito por questionário, a uma amostra de 43 professores do 1.º CEB a lecionarem em turmas de um agrupamento de escolas do concelho de Viseu (Portugal). Os dados revelam que os docentes atribuem grande importância à metodologia de trabalho de grupo, mas utilizam-na com uma frequência variável, na sua prática letiva, em sala de aula. Indicam também o trabalho de grupo como estratégia bastante utilizada para proceder à integração curricular. Todavia, são identificados alguns obstáculos a esta prática, sugerindo mudanças na organização escolar e nas atividades letivas dos professores.

Comunicação apresentada na II European Conference on Curriculum Studies (ECCS), realizada no Porto de 16 a 17 de outubro de 2015, publicada nos proceedings.
description: Saber & Educar, n. 20 (2015): Perspetivas didáticas e metodológicas no Ensino Básico
Deep CO Observations and the CO-to-H_2 Conversion Factor in DDO 154, a Low Metallicity Dwarf Irregular Galaxy
Creators: name: Komugi, Shinya
name: Yasui, Chikako
name: Kobayashi, Naoto
name: Hatsukade, Bunyo
name: Kohno, Kotaro
name: Sofue, Yoshiaki
name: Kyu, Shiori
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a deep spectroscopic search for CO emission in the dwarf irregular galaxy DDO154, which has an Oxygen abundance of only 1/20 the solar value. The observations were conducted in order to constrain the CO-to-$\mathrm{H_2}$ conversion factor at low metallicity. No CO was detected, however, despite being one of the sensitive observations done towards galaxies of this type. We succeed in putting a strong lower limit on the conversion factor, at least 10 times the Galactic value. Our result supports previous studies which argue for a high conversion factor at low metallicity.
description: 11 pages, 4 figures. Accepted for publication in PASJ
Mixed effects machine learning on spatially localized immuno-oncology markers for colon metastasis prediction
Creators: name: Levy, Joshua J
name: Bobak, Carly A
name: Nasir-Moin, Mustafa
name: Verizoglu, Eren M
name: Palisoul, Scott M
name: Barney, Rachael E
name: Salas, Lucas A
name: Christensen, Brock C
name: Tsongalis, Gregory J
name: Vaickus, Louis J
Publisher: name: F1000 Research Limited
Year: 2021

description: Spatial omics technologies provide enhanced resolution on disease pathology through localization of gene and protein expression and are well-poised to disrupt previous modes of analysis which rely on bulk specimen. However, batch effects in omics data have long threatened to derail clinical research studies, which aim to develop diagnostic and prognostic disease markers, by instead learning markers which are dependent on batch. Meanwhile, machine learning classifiers are able to more fully realize the complex relationships embedded in high dimensional omics datasets but are even more corruptible to batch effects. The goal of our study is to discuss the potential application of mixed effects machine learning (MEML) methods, which can model complex interactions and nonlinearities in the predictors, which may be of great benefit to investigators of spatial omics technologies. We have collected a novel dataset of 840 regions of interest representing localized protein expression patterns, collected using the Nanostring GeoMX Digital Spatial Profiler, across 35 colon adenocarcinoma patients. We demonstrate that these MEML methods have enormous potential for uncovering etiological factors of disease pathology (particularly cancer), which we plan to follow up with an expanded clinical study after further algorithmic development. Presented at the Pacific Symposium on Biocomputing, 2022.
Development of microfluidic-based olfaction system for nuisance sewer gas monitoring
Creators: name: Mohaghegh Montazeri, Mahyar
Publisher: name: University of British Columbia
Year: 2018

description: Nuisance compounds such as hydrogen sulfide (H₂S) are the main cause of unpleasant odors and corrosion in sewer pipes. The available chemical treatment methods are expensive and have negative side effects. Hotspot monitoring, identifying specific locations for targeted treatment, minimizes the use of chemicals and their negative impacts. This thesis presents microfluidic-based artificial olfaction detectors for hotspot monitoring of nuisance sewer compounds. The detector is fabricated using a highly-selective microchannel coupled with a sensitive metal oxide semiconductor (MOS) sensor. To study the role of the detector’s dimension and the behavior of different analytes in the detector, a comprehensive 3D numerical model is developed. In essence the model simulates the effects of diffusion, surface adsorption/desorption, chemical reactions on the MOS sensor, and heat and momentum transfer due to the MOS heating element. After verification/validation of the numerical model, it is used to compare the effect of the above-mentioned phenomena on the detector response. The results show that diffusion is the main parameter affecting the response, followed by surface adsorption/desorption; heat and momentum transfer has a minimum effect on the response. The model is also used to investigate the effect of the detector’s dimension (including microchannel length, microchannel height, and MOS sensor housing volume) on its performance in terms of sensitivity, selectivity and the recovery time. The results show that there is a trade-off between selectivity and sensitivity; thus, a sum indicator is defined to investigate the overall performance for various conditions. To obtain the experimental responses for different concentrations of H₂S, a setup (consisting of a custom-built syringe pump, automated sample delivery, vaporization chamber, and detector) is developed. The detector responses are calibrated using gas chromatography and analyzed by feature extraction methods. To study the effect of humidity on the response, a gaseous-based setup is developed. The results of these two setups reveal that humidity damps the responses, indicating the importance of calibrating the detector against liquid samples. The model and experimental setup developed in this thesis can be used for generating a prodigious number of responses in the most cost-effective manner for distinguishing H₂S from mixture of several sewer gases.
Comment: Quantifying the Fraction of Missing Information for Hypothesis Testing in Statistical and Genetic Studies
Creators: name: Chang, I-Shou
name: Chen, Chung-Hsing
name: Chien, Li-Chu
name: Hsiung, Chao A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Comment on "Quantifying the Fraction of Missing Information for Hypothesis Testing in Statistical and Genetic Studies" [arXiv:1102.2774]
description: Published in at http://dx.doi.org/10.1214/08-STS244C the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
D2.2: Cross-Border Collaboration Models – The Nordic Experience
Creators: name: Kontkanen, Pirjo
name: Rasmussen, Troels
name: Hammargren, Per-Olov
name: Riungu-Kalliosaari, Leah
name: Fischer, Lars
Publisher: name: Zenodo
Year: 2021
Subjects: EOSC-Nordic

description: This document is a deliverable of the EOSC-Nordic project supported by the European Commission under Horizon 2020. The deliverable is the work of Work Package two, Policies, legal issues and sustainability. This document discusses past experience of organising cross-border research, research infrastructure collaboration and access to research and infrastructure resources in the Nordic and Baltic region. It offers lessons learned with a view to the potential impact on the European Open Science Cloud (EOSC). Especially governance, resource sharing, coordination & harmonisation of policies, as well as cross-border funding are discussed. The document assesses the past developments against the anticipated EOSC model and provides recommendations on how to further develop cross-collaboration in relation to EOSC.
description: This deliverable is approved by the EC on 16 June 2021.
Robust and fragile PT-symmetric phases in a tight-binding chain
Creators: name: Joglekar, Yogesh N.
name: Scott, Derek
name: Babbey, Mark
name: Saxena, Avadh
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the phase-diagram of a parity and time-reversal (PT) symmetric tight-binding chain with $N$ sites and hopping energy $J$, in the presence of two impurities with imaginary potentials $\pm iγ$ located at arbitrary (P-symmetric) positions $(m, \bar{m}=N+1-m)$ on the chain where $m\leq N/2$. We find that except in the two special cases where impurities are either the farthest or the closest, the PT-symmetric region - defined as the region in which all energy eigenvalues are real - is algebraically fragile. We analytically and numerically obtain the critical impurity potential $γ_{PT}$ and show that $γ_{PT}\propto 1/N\rightarrow 0$ as $N\rightarrow\infty$ except in the two special cases. When the PT symmetry is spontaneously broken, we find that the maximum number of complex eigenvalues is given by $2m$. When the two impurities are the closest, we show that the critical impurity strength $γ_{PT}$ in the limit $N\rightarrow\infty$ approaches $J$ ($J/2$) provided that $N$ is even (odd). For an even $N$ the PT symmetry is maximally broken whereas for an odd $N$, it is sequentially broken. Our results show that the phase-diagram of a PT-symmetric tight-binding chain is extremely rich and that, in the continuum limit, this model may give rise to new PT-symmetric Hamiltonians.
description: 10 pages, 4 figures
Un traductor colombiano de Horacio
Creators: name: Burgos, Javier de
Publisher: name: Universidad del Rosario
Year: 1915

description: El señor doctor Francisco Vergara Barros, laureado en la facultad profesional de filosofía y letras del Colegio del Rosario y actual representante al Congreso nacional, ha terminado la versión, emprendida hace largos años y pacientemente...
title: Fausta Deshormes La Valle
title: An artisan of women’s network in Europe
titleType: Subtitle
Creators: name: Di Nonno, Maria Pia
Publisher: name: CICS.NOVA - NOVA FCSH / Húmus
Year: 2020

description: Relato do contributo da jornalista italiana Fausta Deshormes La Valle, considerada uma das “Mães da Europa”, para a criação do Women’s Information Office na EU.
description: Di Nonno, Maria Pia, Fausta Deshormes La Valle: An artisan of women’s network in Europe. Faces de Eva. Estudos sobre a Mulher (2020). (44), 17-26 ISSN: 0874-6885
Galactic Cepheids with Spitzer: II. Search for Extended Infrared Emission
Creators: name: Barmby, P.
name: Marengo, M.
name: Evans, N. R.
name: Bono, G.
name: Huelsman, D.
name: Su, K. Y. L.
name: Welch, D. L.
name: Fazio, G. G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A deep and detailed examination of 29 classical Cepheids with the Spitzer Space Telescope has revealed three stars with strong nearby extended emission detected in multiple bands which appears to be physically associated with the stars. RS Pup was already known to possess extended infrared emission, while the extended emission around the other two stars S Mus and delta Cep is newly discovered in our observations. Four other stars GH Lup, l Car, T Mon and X Cyg show tentative evidence for extended infrared emission. An unusual elongated extended object next to SZ Tau appears to be a background or foreground object in a chance alignment with the Cepheid. The inferred mass loss rates upper limits for S Mus and delta Cep are in the range from 1e-9 to 1e-8 Msun/yr, with the upper limit for RS Pup as high as 1e-6 Msun/yr. Mass loss during post-main-sequence evolution has been proposed as a resolution to the discrepancy between pulsational and dynamical masses of Cepheid variable stars: dust in the lost material would make itself known by the presence of an infrared bright nebula, or unresolved infrared excess. The observed frequency of infrared circumstellar emission (<24%) and the mass loss rate we estimate for our sources shows that dusty mass loss can only account for part of the Cepheid mass loss discrepancy. Nevertheless, our direct evidence that mass loss is active during the Cepheid phase is an important confirmation that these processes need to be included in evolutionary and pulsation models of these stars, and should be taken into account in the calibration of the Cepheid distance scale.
description: AJ in press, 27 pages including 10 figures
Una imitación de Fernán Caballero
Creators: name: Restrepo Millan, José María
Publisher: name: Universidad del Rosario
Year: 1915

description: Don Ricardo Carrasquilla era un devoto admirador y un profundo conocedor de Bossuet. Cuéntase que en una ocasión, habiendo oído la lectura de un elocuentísimo trozo sobre la Sagrada Eucaristía, de labios de su hijo mayor...
Supervisão pedagógica em contexto de formação inicial de professores do 1º CEB: uma análise focada nos relatórios de estágio
Creators: name: Ferreira, Pedro
name: Fernandes, Preciosa
Publisher: name: Escola Superior de Educação de Paula Frassinetti - CIPAF
Year: 2015
Subjects: Conceções de supervisão pedagógica; Formação inicial de professores; Processo de supervisão pedagógica; 1º CEB.

description: O presente artigo[1] tem como objetivo geral contribuir para aprofundar o conhecimento sobre processos de supervisão pedagógica em contexto de formação inicial de professores do 1º ciclo do ensino básico. Para isso, foram analisados relatórios finais de estágio de 16 estagiários/futuros professores de uma Escola Superior de Educação do Ensino Particular e Cooperativo, realizados no ano de 2013-2014. A análise de conteúdo (Bardin, 2009) dos relatórios assentou nas seguintes categorias: i) Conceções de supervisão pedagógica e de inovação curricular e ii) Processo de supervisão, em contexto de formação inicial de professores do 1.ºCiclo do Ensino Básico (CEB). Genericamente, os relatórios evidenciam uma conceção de supervisão reflexiva (Alarcão & Canha, 2013), orientada por princípios de cooperação, apoio e trabalho colaborativo entre toda a equipa pedagógica, com espaço para a reflexão e o trabalho autónomo dos estagiários/futuros professores do 1º CEB. No que respeita especificamente ao processo de supervisão, a análise indica uma ênfase nas pedagogias ativas e na articulação entre a teoria e a prática.
description: Saber & Educar, n. 20 (2015): Perspetivas didáticas e metodológicas no Ensino Básico
A two-stage hybrid procedure for estimating an inverse regression function
Creators: name: Tang, Runlong
name: Banerjee, Moulinath
name: Michailidis, George
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We consider a two-stage procedure (TSP) for estimating an inverse regression function at a given point, where isotonic regression is used at stage one to obtain an initial estimate and a local linear approximation in the vicinity of this estimate is used at stage two. We establish that the convergence rate of the second-stage estimate can attain the parametric $n^{1/2}$ rate. Furthermore, a bootstrapped variant of TSP (BTSP) is introduced and its consistency properties studied. This variant manages to overcome the slow speed of the convergence in distribution and the estimation of the derivative of the regression function at the unknown target quantity. Finally, the finite sample performance of BTSP is studied through simulations and the method is illustrated on a data set.
description: Published in at http://dx.doi.org/10.1214/10-AOS820 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Analytical and numerical study of plug flow inside round/concentric microchannels
Creators: name: Cao, Yadi
Publisher: name: University of British Columbia
Year: 2018

description: Plug flow can generate recirculating flow between interfaces of immiscible fluids. Depending on the phase used to segment flow, it can be gas-liquid plug flow or liquid-liquid plug flow. The recirculating flow can enhance heat transfer as compared to the continuous pipe flow, especially in the laminar regime such as the microchannel flow. The present work focuses on the flow and heat transfer of liquid plugs with low Reynolds numbers. The flow is modeled by applying Stokes simplification, and the solution is obtained by solving fourth-order partial differential equation sets. Solutions of two types of plug flow are obtained: 1) the gas-liquid plug flow in the concentric microchannel; 2) the liquid-liquid plug flow in the circular microchannel. For the gas-liquid plug flow study, the flow patterns inside the liquid phase including the volume ratio of the inner and outer vortexes, the ratio of maximum-to-minimum stream functions, the averaged recirculation flux as well as the skin friction coefficient are investigated in details. Correlations for predicting the maximum and minimum of the stream function are developed. For the liquid-liquid plug flow study, the influences of plug lengths and the viscosity ratio upon the cap vortexes and the overall skin friction coefficient are studied in details. The heat transfer of the gas-liquid plug flow in the concentric microchannel is simulated numerically in MATLAB. Three types of thermal boundary conditions are investigated. The developing process of the thermal field can be explained using a simple thermal network for each boundary condition. The influences of parameters including the plug aspect ratio, the channel inner-outer radius ratio and the Peclect number upon the thermal conductance and heat transfer enhancement to the single-phase flow are investigated systematically. Then a simplified model for the fully developed thermal field is extracted for the quick calculation need in the design work. The results obtained from about 12,000 cases form a database that can be used in the future design work of heat exchanger based upon this kind of flow.
From Zero to One Hundred: Open Access Books Network and community-based learning
Creators: name: Mosterd, Tom
Publisher: name: Zenodo
Year: 2021
Subjects: Open Access
OA Books
Networks
Best Practice Exchange
Community-Driven
Community-Learning

description: The Open Access Books Network (OABN) is a relatively new kid on the block, but it punches above its weight. It launched in September 2020, as a bottom-up initiative focused on OA books, coordinated by representatives of DOAB/OAPEN, SPARC Europe, and ScholarLed. In its first year, the OABN has brought together the OA books community to stage numerous events, share best practices, and discuss new developments and initiatives with an emphasis on OA books. This lightning talk will explore our experiences developing the OABN, our early growth, and the lessons we have learned along the way. Our most significant series of community events so far began in March 2021: over the span of three months, we ran a series of workshops, Voices from the OA Books Community, devoted to exploring different aspects of policy for OA books, to gather wide-ranging feedback from the community that could inform the forthcoming Plan S guidance for books. The series gathered around 450 different stakeholders, including publishers, funders, OA policy makers, researchers, librarians, and infrastructure providers from all over the world. This series demonstrated that the OABN can be a valuable vehicle in facilitating knowledge exchange in the relatively niche field of OA books. Now that we are celebrating OABN’s first birthday, we want to look back at lessons learnt from the past twelve months. How does one build a strong network, uniting such diverse stakeholders as publishers, librarians, service providers, policymakers and funders? How do we engage and encourage community members to interact with the OABN? How does it help them and what questions do they have? This lightning talk will provide a snapshot of the first year of the OABN, answering some of the aforementioned questions and with an emphasis on the community-oriented ‘Voices from the OA Books Community’ series.
Estudios jurídicos
Creators: name: Gnecco Laborde, José
Publisher: name: Universidad del Rosario
Year: 1915

description: El principio consignado en el artículo 41 del Acto legislativo número 3 de 1910, en cuanto por él se le atribuye a la Corte Suprema de Justicia la guarda de la integridad de la constitución; y, como consecuencia, se le confiere la facultad de decidir definitivamente sobre la exequibilidad...
Approximation for discrete Fourier transform and application in study of three-dimensional interacting electron gas
Creators: name: Yan, Xin-Zhong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The discrete Fourier transform is approximated by summing over part of the terms with corresponding weights. The approximation reduces significantly the requirement for computer memory storage and enhances the numerical computation efficiency with several orders without loosing accuracy. As an example, we apply the algorithm to study the three-dimensional interacting electron gas under the renormalized-ring-diagram approximation where the Green's function needs to be self-consistently solved. We present the results for the chemical potential, compressibility, free energy, entropy, and specific heat of the system. The ground-state energy obtained by the present calculation is compared with the existing results of Monte Carlo simulation and random-phase approximation.
description: 11 pages, 13 figures
Hacia Dios
Creators: name: León, Ricardo
Publisher: name: Universidad del Rosario
Year: 1915

description: Con la valiente osadía, del amor y de su fuego, beber los aires ansío, forzar los astros pretendo,luchar con Dios, cautivarte... y hacerle mi prisionero y en sus divinas entrañas clavarle mi dardo quiero...
On the spectrum of facet crystallization waves at the smooth 4He crystal surface
Creators: name: Burmistrov, S. N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The wavelike processes of crystallization and melting or crystallization waves are well known to exist at the 4He crystal surface in the rough state. Much less is known about crystallization waves for the 4He crystal surface in the smooth well-faceted state below the roughening transition temperature. To meet the lack, we analyze here the spectrum of facet crystallization waves and its dependence upon the wavelength, perturbation amplitude, and the number of possible facet steps distributed somehow over the wavelength. All the distinctive features of facet crystallization waves from conventional waves at the rough surface result from a nonanalytic cusplike behavior in the angle dependence for the surface tension of smooth crystal facets.
description: 7 pages, 3 figures, 1 table