cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Os hotéis de Lisboa no contexto das políticas e das culturas urbanas do século XIX
Creators: name: Ferreira, Ana Maria Alves Pedro
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Este artigo tem como fim descrever o modo como surgiram os primeiros hotéis na cidade de Lisboa, no século XIX, a sua inserção na malha urbana, as razões que presidiram às opções tomadas, em termos de localização, face às políticas urbanas e aos estilos de vida dos seus clientes, estilos de vida convergentes com as manifestações de cultura urbana da época. Em termos metodológicos selecionou-se a técnica do estudo de caso baseado na inventariação e análise de documentos provenientes de uma grande variedade de fontes que se estendem dos Estudos Culturais à Sociologia Urbana, do Urbanismo e da Arquitetura à História de Lisboa e à da Literatura.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)
Anharmonicity Induced Resonances for Ultracold Atoms and their Detection
Creators: name: Kestner, J. P.
name: Duan, L. -M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: When two atoms interact in the presence of an anharmonic potential, such as an optical lattice, the center of mass motion cannot be separated from the relative motion. In addition to generating a confinement-induced resonance (or shifting the position of an existing Feshbach resonance), the external potential changes the resonance picture qualitatively by introducing new resonances where molecular excited center of mass states cross the scattering threshold. We demonstrate the existence of these resonances, give their quantitative characterization in an optical superlattice, and propose an experimental scheme to detect them through controlled sweeping of the magnetic field.
description: 6 pages, 5 figures; expanded presentation
Lelek's problem is not a metric problem
Creators: name: Bartosova, Dana
name: Hoehn, Logan
name: Hart, Klaas Pieter
name: van der Steeg, Berd
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Topology (math.GN)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 54F15 (Primary) 03C20, 03C68 (Secondary)

description: We show that Lelek's problem on the chainability of continua with span zero is not a metric problem: from a non-metric counterexample one can construct a metric one.
description: Final version as sent to editor
Broccoli
Creators: name: Traunfeld, Jon
name: Nixon, Bob
name: Smetana, Jeanine
name: Yen, Peggy
Publisher: name: University of Maryland Extension
Year: 2010

description: Broccoli is a plant of the cabbage family Brassicaceae (formerly Cruciferae), classified in the Italica cultivar group of the species Brassica oleracea. This publication describes the four types of broccoli with instructions for planting, cultivation, harvesting, storage, and use.
title: Galactografía: Realización del procedimiento e interpretación de los hallazgos.
Creators: name: Rodriguez Rosales, Karina Paola
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Breast
subject: Interventional non-vascular
subject: Mammography
subject: Galactography

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Repasar la definición de la galactografía,
sus indicaciones,
su utilidad y sus desventajas. Revisar los requerimientos básicos y los pasos a seguir para la realización de una galactografía. Describir los hallazgos de una galactografía...
The fermion bag approach to lattice field theories
Creators: name: Chandrasekharan, Shailesh
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We propose a new approach to the fermion sign problem in systems where there is a coupling $U$ such that when it is infinite the fermions are paired into bosons and there is no fermion permutation sign to worry about. We argue that as $U$ becomes finite fermions are liberated but are naturally confined to regions which we refer to as {\em fermion bags}. The fermion sign problem is then confined to these bags and may be solved using the determinantal trick. In the parameter regime where the fermion bags are small and their typical size does not grow with the system size, construction of Monte Carlo methods that are far more efficient than conventional algorithms should be possible. In the region where the fermion bags grow with system size, the fermion bag approach continues to provide an alternative approach to the problem but may lose its main advantage in terms of efficiency. The fermion bag approach also provides new insights and solutions to sign problems. A natural solution to the "silver blaze problem" also emerges. Using the three dimensional massless lattice Thirring model as an example we introduce the fermion bag approach and demonstrate some of these features. We compute the critical exponents at the quantum phase transition and find $ν=0.87(2)$ and $η=0.62(2)$.
description: 31 pages, 9 figures, 5 tables
Gender and leadership in the tourism sector: the case of the restaurants industry in the city of Aveiro, Portugal
Creators: name: Simão, Pedro
name: Breda, Zélia
Publisher: name: Journal of Tourism & Development
Year: 2014

description: Gender inequality is still a reality in today’s world. Men still take most of the decisions in the family context, while women often do not take part in the decision-making process. In the tourism sector the reality is similar. While most of the jobs are seasonal or part-time, those are mainly occupied by women. On the other hand, men hold the majority of leadership roles in tourism enterprises. Several authors have already studied gender differences in the tourism sector but there is not much evidence with regards to restaurants industry. Therefore, this paper aims to contribute to the literature, by identifying the main barriers for gender equality in leadership positions in this subsector. Data was collected through a survey questionnaire targeting leaders and employees of restaurants located in the city of Aveiro (Portugal), and it was analyzed through content and statistical analyses. Findings show that men occupy most of the leadership positions. Men are perceived as authoritarian, respectable, knowledgeable and manipulative, and women are seen as organized, creative, comprehensive and responsible.
description: Journal of Tourism & Development, vol. 1 n.º 21/22 (2014)
title: La TC multicorte en la obstrucción intestinal
Creators: name: Cañete Moslero, Maria Carmen
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen
subject: CT
subject: Surgery
subject: Obstruction / Occlusion

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
La obstrucción intestinal constituye una de las patologías más frecuentes en los servicios de urgencias,
llegando a representar de entre el 12 al 20% de las mismas,
por lo que es de suma importancia el conocimiento por parte del radiólogo de...
Translational invariance of the Einstein-Cartan action in any dimension
Creators: name: Kiriushcheva, N.
name: Kuzmin, S. V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate that from the first order formulation of the Einstein-Cartan action it is possible to derive the basic differential identity that leads to translational invariance of the action in the tangent space. The transformations of fields is written explicitly for both the first and second order formulations and the group properties of transformations are studied. This, combined with the preliminary results from the Hamiltonian formulation (arXiv:0907.1553 [gr-qc]), allows us to conclude that without any modification, the Einstein-Cartan action in any dimension higher than two possesses not only rotational invariance but also a form of \textit{translational invariance in the tangent space}. We argue that \textit{not} only a complete Hamiltonian analysis can unambiguously give an answer to the question of what a gauge symmetry is, but also the pure Lagrangian methods allow us to find the same gauge symmetry from the \textit{basic} differential identities.
description: 25 pages, new Section on group properties of transformations is added, references are added. This version will appear in General Relativity and Gravitation
O regresso da ‘nova geração’ de emigrantes portugueses e a sua relação com a igualdade do género e o desenvolvimento do turismo em Portugal
Creators: name: Santos, Rossana Andreia Neves Dos
name: Costa, Carlos
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Este artigo pretende demonstrar que o regresso da ‘nova geração’ de emigrantes portugueses pode contribuir para a igualdade do género no setor do turismo, nos seus locais de origem, em Portugal. Os resultados obtidos num estudo realizado em Portugal, através da aplicação de um inquérito por questionário a 5.157 emigrantes portugueses, corroboram esse argumento. Concluiu-se que a repartição desigual das tarefas domésticas na residência do país de acolhimento é desejada pelos emigrantes do sexo feminino, sobretudo porque têm mais disponibilidade e habilidade/empatia por este tipo de tarefas. A sua instalação com caráter definitivo na residência construída de raiz em Portugal e a maior dimensão das suas áreas irão contribuir para que assumam o lugar social que desejam no interior da habitação e, consequentemente, no emprego e na sociedade em geral. Na sua perspetiva, a exploração turística dessa residência contribuirá também para aumentarem o seu rendimento no local de trabalho e remunerarem o trabalho doméstico.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)
An assessment of the business value of traceability practices in the italian fishery processing industry
Creators: name: Asioli, Daniele <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: AGR/01 Economia ed estimo rurale

description: Traceability is often perceived by food industry executives as an additional cost of doing business, one to be avoided if possible. However, a traceability system can in fact comply the regulatory requirements, increase food safety and recall performance, improving marketing performances and, as well as, improving supply chain management. Thus, traceability affects business performances of firms in terms of costs and benefits determined by traceability practices. Costs and benefits affect factors such as, firms’ characteristics, level of traceability and ,lastly, costs and benefits perceived prior to traceability implementation. This thesis was undertaken to understand how these factors are linked to affect the outcome of costs and benefits. 
Analysis of the results of a plant level survey of the Italian ichthyic processing industry revealed that processors generally adopt various level of traceability while government support appears to increase the level of traceability and the expectations and actual costs and benefits. None of the firms’ characteristics, with the exception of government support, influences costs and level of traceability. Only size of firms and level of QMS certifications are linked with benefits while precision of traceability  increases benefits without affecting costs. Finally, traceability practices appear due to the request from “external“ stakeholders such as government, authority and customers rather than “internal” factors (e.g. improving the firm management) while the traceability system does not provide any added value from the market in terms of price premium or market share increase.
Combinatorial and Robust Optimisation Models and Algorithms for Railway Applications
Creators: name: Galli, Laura <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: MAT/09 Ricerca operativa

description: This thesis deals with an investigation of combinatorial and robust optimisation models
to solve railway problems.
Railway applications represent a challenging area for operations research. In fact, most problems in this context can be modelled as combinatorial optimisation problems, in which the number of feasible solutions is finite. Yet, despite the astonishing success in the field of combinatorial optimisation, the current state of algorithmic research  faces severe difficulties with highly-complex and data-intensive applications such as those dealing with optimisation issues in large-scale transportation networks.
One of the main issues concerns imperfect information. The idea of Robust Optimisation, as a way
to represent and handle mathematically systems with not precisely known data, dates back to 1970s.
Unfortunately, none of those techniques proved to be successfully applicable in one of the most complex and largest in scale (transportation) settings: that of railway systems. Railway optimisation deals with planning and scheduling problems over several time horizons. Disturbances are inevitable and severely affect the planning
process. Here we focus on two compelling aspects of planning: robust planning and online (real-time) planning.
The diversity of gender roles in the Andes: implications for tourism
Creators: name: Guelke, Karoline
Publisher: name: Journal of Tourism & Development
Year: 2014

description: Gender relations of host societies are a key factor in tourism, as they influence how power, identity and change are produced and negotiated (Kinnaird & Hall, 1996; Swain, 1995). Vague definitions of gender have been identified as problematic in many cases of economic development (Ferguson, 2010). Hence tourism projects that seek to equally involve and empower women need to be based on a good understanding of local gender roles. This paper provides an overview of ethnographic anthropological research from the Andean region, including some of the author’s data from a preliminary study. Findings show a general pattern of male dominance in most mestizo communities (Bourque & Warren, 1981; Navarro, 2002; Weismantel, 2001), contrasted by roughly equal status and complementary contributions in the more indigenous communities (Allen, 1988; Bolin, 2006, 1998). Gender identities have been negotiated in various ways before and in response to tourism (Henrici, 2007; Weismantel, 2001). Even though indigenous culture constitutes a major tourist attraction, indigenous women generally do not benefit as much as their urban counterparts, and tourism can even erode women’s traditional power base. This paper illustrates how ethnographic studies can reveal the complexities of Andean gender relations and thus help create more equitable tourism development.
description: Journal of Tourism & Development, vol. 1 n.º 21/22 (2014)
Search for CP violation in the decays $D^+_{(s)} \to K_S^0π^+$ and $D^+_{(s)} \to K_S^0K^+$
Creators: name: Ko, B. R.
name: Won, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have searched for CP violation in the charmed meson decays $D^{+}_{(s)}\to K^0_Sπ^+$ and $D^{+}_{(s)}\to K^0_S K^+$ using 673 fb$^{-1}$ of data collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. No evidence for CP violation is observed. We report the most sensitive CP asymmetry measurements to date for these decays: $A_{CP}^{D^+\to K^0_Sπ^+}=(-0.71\pm0.19\pm0.20)%$, $A_{CP}^{D^+_s\to K^0_Sπ^+}=(+5.45\pm2.50\pm0.33)%$, $A_{CP}^{D^+\to K^0_S K^+}=(-0.16\pm0.58\pm0.25)%$, and $A_{CP}^{D^+_s\to K^0_S K^+}=(+0.12\pm0.36\pm0.22)%$, where the first uncertainties are statistical and the second are systematic.
POLITIK LUAR NEGERI INDONESIA DI AWAL PANDEMI NOVEL CORONAVIRUS DISEASE: JANUARI – AGUSTUS 2020
Creators: name: Luerdi Luerdi
Publisher: name: Zenodo
Year: 2020
Subjects: Indonesia
COVID-19 pandemic
foreign policy
cooperation
collaboration
populist trend
multilateralism

description: Novel Coronavirus Disease or COVID-19 has been a global concern since it was announced as the pandemic. The disease has affected all countries especially their behaviors towards others. That in early time of the pandemic in which many were still unknown has encouraged various reactions among countries. This paper describes Indonesia’s foreign policy in responding to the COVID-19 in early time of the pandemic from January to August 2020. The paper argues that Indonesia preferred cooperation and collaboration believed as the virtues of multilateralism practice despite populist trend shown by more developed world when the disease was crippling a number of countries badly.
On upper bounds for parameters related to construction of special maximum matchings
Creators: name: Khojabaghyan, Artur
name: Mkrtchyan, Vahan V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: For a graph $G$ let $L(G)$ and $l(G)$ denote the size of the largest and smallest maximum matching of a graph obtained from $G$ by removing a maximum matching of $G$. We show that $L(G)\leq 2l(G),$ and $L(G)\leq (3/2)l(G)$ provided that $G$ contains a perfect matching. We also characterize the class of graphs for which $L(G)=2l(G)$. Our characterization implies the existence of a polynomial algorithm for testing the property $L(G)=2l(G)$. Finally we show that it is $NP$-complete to test whether a graph $G$ containing a perfect matching satisfies $L(G)=(3/2)l(G)$.
description: 11 pages, no figures
Tourism English programmes: do they mirror the reality and the contents of the tourism industry?
Creators: name: Oliveira, Isabel Pinto
name: Roberto, Maria Teresa Gomes
name: Costa, Carlos
Publisher: name: Journal of Tourism & Development
Year: 2014

description: The purpose of this research is to identify the English language contents in the tourism educational setting to understand if they address the different aspects of the tourism industry. The study was conducted with information collected from Portuguese public higher education institutions - both universities and polytechnic colleges - which was analysed according to the main economic activities identified at the core of the tourism activity. With this insight of the Portuguese educational setting, the research highlights the importance of the role of English language subjects for the tourism industry.
description: Journal of Tourism & Development, vol. 1 n.º 21/22 (2014)
Tourism higher education in Brazil and the Netherlands: a comparative study
Creators: name: Leal, Sérgio Rodrigues
name: Platenkamp, Vincent
Publisher: name: Journal of Tourism & Development
Year: 2014

description: This paper presents a comparative study between tourism higher education in Brazil and the Netherlands. In order to introduce the context where tourism higher education is situated, a general overview of each country’s education system and some of its most significant influential issues are offered. Then, a critical review of the provision of tourism higher education in Brazil and in the Netherlands is presented. The main aim of the paper is to stimulate more comparative studies amongst countries in different stages of development and to foster the exchange of experiences.
description: Journal of Tourism & Development, vol. 1 n.º 21/22 (2014)
Autodiagnose da formação superior e qualificação profissional em turismo: pistas para uma (necessária) reorientação?
Creators: name: Pimentel, Thiago Duarte
name: Paula, Sara Conceição De
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Este artigo apresenta parte dos resultados de uma pesquisa realizada sobre a formação e inserção profissional no mercado de trabalho na área do turismo, no Brasil. Especificamente, este trabalho tem como objetivo analisar as expectativas dos atuais alunos e dos egressos do curso de turismo da Universidade Federal de Juiz de Fora quanto à formação profissional e qualificação em turismo. A pesquisa possui caráter exploratório e pretende contribuir para o preenchimento da lacuna expressiva a respeito de estudos envolvidos nesta temática. A abordagem é quali-quantitativa utilizando-se a estatística descritiva simples e análise de conteúdo oferecendo possibilidades de cruzamento de informações. Os resultados encontrados evidenciam o perfil do aluno/egresso apresentando suas práticas de estudos e comportamento, além de eventuais incongruências na expectativa do mercado de trabalho e aproveitamento do curso. Como conclusão, as percepções centrais indicam um desconhecimento por parte do aluno a respeito da formação em turismo e seu potencial e, por consequência, observa-se uma incoerência entre o papel atuante do aluno em seu curso e sua atuação no turismo diante dos desafios do mercado.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)
La diagnostica sonica nell'arboricoltura ornamentale
Sonic Analysis in Ornamental Arboriculture
Creators: name: Cevenini, Laura <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: AGR/04 Orticoltura e floricoltura

description: Il tomografo sonico è uno strumento di recente applicazione nell’analisi morfo-sintomatica delle alberature. Si tratta di uno strumento che sfrutta la propagazione delle onde sonore nel legno per determinarne la densità e le possibili alterazioni interne. 
Oltre all’applicazione su larga scala in un parco di Imola, per effettuare una valutazione approfondita di tutti gli esemplari, lo strumento è stato applicato per scopi diversi.
In prima analisi è stato utilizzato per valutare stadi precoci di alterazione e l’evoluzione delle patologie interne nel tempo. 
Successivamente si voleva identificare il percorso di sostanze liquide iniettate con mezzi endoterapici nel tronco, attraverso l’applicazione di tomografia sonica sopra e sotto il punto di iniezione.
In ultima analisi è stato effettuato un confronto tra tomografia sonica e risonanza magnetica nucleare per identificare patologie invisibili ai normali strumenti utilizzati nell’analisi della stabilità delle piante.
description: Sonic tomograph is a new instrument used in morpho-symptomatic analysis of trees. This tool use sonic waves propagation to establish wood density and probably internal decay.
Sonic tomography was applicated on large scale in a urban park in Imola, to value all trees in depth way. Subsequently was used for different aims.
First of all the instrument was applied to evaluate early stage of decay and development of decline in urban trees, by periodic tests in time.
Afterwards was used to determine the travel of liquid substances injected in the trees by trunk injection methods. 
In the last analysis there was carried out a comparison between sonic tomograph and nuclear magnetic resonance to identify decay invisible to normal tools used in tree evaluation
The physical limitations to vegetation establishment of some southern British Columbia mine waste materials
Creators: name: Morton, James William
Publisher: name: University of British Columbia
Year: 2010

description: Vegetation establishment on mine wastes is ultimately limited by the edaphic properties of the wastes. This thesis examines, characterizes and interprets the physical properties of some southern British Columbia mine wastes:- to elucidate the feasibility of various reclamation procedures. Vaste areas, including both mill tailings, rock dumps and adjacent natural soils are characterized. The project primarily addresses three areas in British Columbia affected by sulfide mining activities; the Princeton area, the Highland Valley area and the Kimberley area. Waste materials examined were derived from the Similkameen, Copper Mountain, Lornex, Bethlehem and Sullivan mines. Minor examination of the now revegetated Jersey Mine tailings located near Salmo, B.C. was also included. Field work involved mapping waste materials and natural soils and then systematically sampling the various units delineated. Laboratory methods were employed to define and compare the properties of samples collected. Limited water storage capacity was found to be a major problem in waste rock dump material. Mill tailings were found to have acceptable available water storage capacities. Some mill tailings may have aeration porosity deficiencies when wet. Cation exchange capacities, while usually adequate in waste rock dump materials, are sometimes very low in mill tailings; a factor that will present serious fertility problems in revegetation. Some adjacent coarse coniferous forest soils were found to have similar properties to waste rock dump material while some adjacent grass dominated soils were found to have similar properties to the mine tailings. Waste rock dump material appears best suited to eventual revegetation by aborescent species, while mill tailings appear best suited to eventual revegetation by grass or forb species. Soil processes were found to be both active and rapid in both types of waste material.
CADE FRONT END PLANTA BAIXA
Creators: name: Alexandre Cordeiro Macedo
name: Paulo Eduardo Silva de Oliveira
name: Vinicius Eloy dos Reis
name: William José da Conceição Marques
name: Leonardo de Oliveira Alves Sanches Lima
name: Alessandro Lustosa Seixas Pinheiro
name: Cristiane de Freitas Leal
name: Felipe Alberto Moreira
name: Helio Ribeiro da Costa
name: Jorge Luiz Hachem Vasconcelos
name: Wendel Sousa de Anchieta
name: Márcia Abrahão Moura
name: Maria Emília Machado Telles Walter
name: Rafael Timóteo de Sousa Júnior
name: Edna Dias Canedo
name: Georges Daniel Amvame Nze
name: Valério Aymore Martins
name: Adailton Amaro Nunes
name: Alessandra de Vasconcelos Sales
name: Aline Lima da Silva
name: Ana Beatriz de Sousa Monteiro
name: Ana Flavia Araújo Santana
name: André Luiz Chaves da Silva
name: Bruno Justino Garcia Praciano
name: Caroline Emanuele da Silva Sousa
name: Danilo Freire Holanda de Paiva
name: Denise Mitie Taketomi
name: Edle Marcio dos Santos Silva
name: Eduardo Drumond Soares
name: Fábio Lúcio Lopes de Mendonça
name: Felipe Evangelista dos Santos
name: Felipe Lobão Lima
name: Guilherme Pereira Paiva
name: Hugo Bartolomeu Ferreira
name: Ian Porto e Melo
name: Igor de Almeida Gentil
name: Isabela de Lima Silva
name: Isabela Carolina Martins
name: Italo Eduardo Dias Frota
name: Izadora Oliveira Linhares
name: Jeanne Louize Emygdio
name: Julia Jamile de Oliveira Gonçalves
name: Karen Ferreira Machado
name: Lincoln Abreu Barbosa
name: Lohana Salustiano Cardoso
name: Luiz Fernando Santos de Araujo Caduda
name: Marcelo Dos Santos Vianna
name: Marcio Junior Vieira
name: Marcos Vinicius da Silva Souza
name: Mateus Alves Dantas
name: Noely Gomes de Lima
name: Paulo Henrique Batista Rodrigues
name: Rafael de Arruda Faria
name: Renato Carauta Ribeiro
name: Rogerio de Oliveira Costa
name: Thays de Oliveira Coelho
name: Thiago Augusto Montenegro Pestana
name: Vanessa Coelho Ribeiro
name: Welber Santos de Oliveira
name: Zaquel Isaque Alves Cabral
Publisher: name: Zenodo
Year: 2022

description: Pesquisa Aplicada com fundamento no estudo de necessidades, análise informacional, concepção, prototipação e experimentação com vistas à inovação tecnológica e de processos no domínio da Defesa Econômica para o Conselho Administrativo de Defesa Econômica – Cade.
Simulation of a flux emergence event and comparison with observations by Hinode
Creators: name: Chaouche, L. Yelles
name: Cheung, M. C. M.
name: Solanki, S. K.
name: Schuessler, M.
name: Lagg, A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the observational signature of flux emergence in the photosphere using synthetic data from a 3D MHD simulation of the emergence of a twisted flux tube. Several stages in the emergence process are considered. At every stage we compute synthetic Stokes spectra of the two iron lines Fe I 6301.5 Å and Fe I 6302.5 Å and degrade the data to the spatial and spectral resolution of Hinode's SOT/SP. Then, following observational practice, we apply Milne-Eddington-type inversions to the synthetic spectra in order to retrieve various atmospheric parameters and compare the results with recent Hinode observations. During the emergence sequence, the spectral lines sample different parts of the rising flux tube, revealing its twisted structure. The horizontal component of the magnetic field retrieved from the simulations is close to the observed values. The flattening of the flux tube in the photosphere is caused by radiative cooling, which slows down the ascent of the tube to the upper solar atmosphere. Consistent with the observations, the rising magnetized plasma produces a blue shift of the spectral lines during a large part of the emergence sequence.
description: A&A Letter, 3 figures
Additional file 1 of Epidemiological trends of tracheal, bronchus, and lung cancer at the global, regional, and national levels: a population-based study
Creators: name: Deng, Yujiao
name: Zhao, Peng
name: Zhou, Linghui
name: Xiang, Dong
name: Hu, Jingjing
name: Liu, Yu
name: Ruan, Jian
name: Ye, Xianghua
name: Zheng, Yi
name: Yao, Jia
name: Zhai, Zhen
name: Wang, Shuqian
name: Yang, Si
name: Wu, Ying
name: Li, Na
name: Xu, Peng
name: Zhang, Dai
name: Kang, Huafeng
name: Lyu, Jun
name: Dai, Zhijun
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1. GBD overview.
No Generalized TMD-Factorization in the Hadro-Production of High Transverse Momentum Hadrons
Creators: name: Rogers, Ted C.
name: Mulders, Piet J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It has by now been established that standard QCD factorization using transverse momentum dependent parton distribution functions fails in hadro-production of nearly back-to-back hadrons with high transverse momentum. The essential problem is that gauge invariant transverse momentum dependent parton distribution functions cannot be defined with process-independent Wilson line operators, thus implying a breakdown of universality. This has led naturally to proposals that a correct approach is to instead use a type of "generalized" transverse momentum dependent factorization in which the basic factorized structure is assumed to remain valid, but with transverse momentum dependent parton distribution functions that contain non-standard, process dependent Wilson line structures. In other words, to recover a factorization formula, it has become common to assume that it is sufficient to simply modify the Wilson lines in the parton correlation functions for each separate hadron. In this paper, we will illustrate by direct counter-example that this is not possible in a non-Abelian gauge theory. Since a proof of generalized transverse momentum dependent factorization should apply generally to any hard hadro-production process, a single counter-example suffices to show that a general proof does not exist. Therefore, to make the counter-argument clear and explicit, we illustrate with a specific calculation for a double spin asymmetry in a spectator model with a non-Abelian gauge field. The observed breakdown of generalized transverse momentum dependent factorization challenges the notion that the role of parton transverse momentum in such processes can be described using separate correlation functions for each external hadron.
description: 19 pages, 11 figures, typos fixed and minor explanations added, version to appear in Physical Review D
Detection of the high z GRB 080913 and its implications on progenitors and energy extraction mechanisms
Creators: name: Perez-Ramirez, D.
name: Postigo, A. de Ugarte
name: Gorosabel, J.
name: Aloy, M. A.
name: Johannesson, G.
name: Guerrero, M. A.
name: Osborne, J. P.
name: Page, K. L.
name: Warwick, R. S.
name: Horvath, I.
name: Veres, P.
name: Jelinek, M.
name: Kubanek, P.
name: Guziy, S.
name: Bremer, M.
name: Winters, J. M.
name: Riva, A.
name: Castro-Tirado, A. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Aims: We present multiwavelength observations of one of the most distant gamma-ray bursts detected so far, GRB 080913. Based on these observations, we consider whether it could be classified as a short-duration GRB and discuss the implications for the progenitor nature and energy extraction mechanisms. Methods: Multiwavelength X-ray, near IR and millimetre observations were made between 20.7 hours and 16.8 days after the event. Results: Whereas a very faint afterglow was seen at the 3.5m CAHA telescope in the nIR, the X-ray afterglow was clearly detected in both Swift and XMM-Newton observations. An upper limit is reported in the mm range. We have modeled the data assuming a collimated $θ_0$ $\gtrsim$ 3$^\circ$ blast wave with an energy injection at 0.5 days carrying $5\sim 10^{52}$ erg or approximately 12 times the initial energy of the blast wave. We find that GRB 080913 shares many of the gamma-ray diagnostics with the more recent burst GRB 090423 for being classified as short had they ocurred at low redshift. If the progenitor were a compact binary merger, it is likely composed by a NS and BH. The Blandford-Znajek (BZ) mechanism is the preferred one to extract energy from the central, maximally-rotating BH. Both the magnetic field close to the event horizon (B) and the BH mass ($M_{bh}$) are restricted within a relatively narrow range, such that $(B / 3\times 10^{16} \rm{G}) (M_{bh} / 7 M_\odot) \sim 1$. Similar constraints on the central BH hold for collapsar-like progenitor systems if the BZ-mechanism works for the system at hand.
description: 7 pages, 4 figures. Accepted for publication in A&A
Evaluation of cardiovascular disease markers in patients submitted to carotid artery stenting or endarterectomy
Creators: name: Fittipaldi, Silvia <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: MED/22 Chirurgia vascolare

description: Introduction. Microembolization during the carotid artery revascularization procedure may cause cerebral lesions. Elevated C-Reactive Protein (hsCRP), Vascular endothelial growth factor (VEGF) and serum amyloid A protein (SAA) exert inflammatory activities thus promoting carotid plaque instability. Neuron specific enolase (NSE) is considered a marker of cerebral injury. Neoangiogenesis represents a crucial step in atherosclerosis, since neovessels density correlates with plaque destabilization. However their clinical significance on the outcome of revascularization is unknown.  This study aims to establish the correlation between palque vulnerabilty, embolization and histological or serological markers of inflammation and neoangiogenesis. 
Methods. Serum hsCRP, SAA, VEGF, NSE mRNA, PAPP-A mRNA levels were evaluated in patients with symptomatic carotid stenosis who underwent filter-protected CAS or CEA procedure. Cerebral embolization, presence of neurologicals symptoms, plaque neovascularization were evaluated testing imaging, serological and histological methods. Results were compared by Fisher’s, Student T test and Mann-Whitney U test. 
Results. Patients with hsCRP<5 mg/l, SAA<10mg/L and VEGF<500pg/ml had a mean PO of 21.5% versus 35.3% (p<0.05). In either group, embolic material captured by the filter was identified as atherosclerotic plaque fragments. Cerebral lesions increased significantly in all patients with hsCRP>5mg/l and SAA>10mg/l (16.5 vs 2.8 mean number, 3564.6 vs 417.6 mm3 mean volume). 
Discussion. High hsCRP, SAA and VEGF levels are associated with significantly greater embolization during CAS and to the vulnerabiliy of the plaque. This data suggest CAS might not be indicated as a method of revascularization in this specific group of patients.
Twin TQFTs and Frobenius algebras
Creators: name: Caprau, Carmen
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R56, 57M99, 81T40, 19D23

description: We introduce the category of singular 2-dimensional cobordisms and show that it admits a completely algebraic description as the free symmetric monoidal category on a twin Frobenius algebra, by providing a description of this category in terms of generators and relations. A twin Frobenius algebra (C, W, z, z^*) consists of a commutative Frobenius algebra C, a symmetric Frobenius algebra W, and an algebra homomorphism z: C - > W with dual z^*: W -> C, satisfying some extra conditions. We also introduce a generalized 2-dimensional Topological Quantum Field Theory defined on singular 2-dimensional cobordisms and show that it is equivalent to a twin Frobenius algebra in a symmetric monoidal category.
description: 38 pages, many figures; some concepts have been clarified; references and proofs have been added
Giant enhancement of electric field between two close metallic grains due to plasmonic resonance
Creators: name: Lebedev, V.
name: Vergeles, S.
name: Vorobev, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically examine plasmonic resonance between two close metallic grains separated by a gap of width much less than the length of the incident electromagnetic wave. Resonance conditions are established and the electric field enhancement is found. Our general arguments are confirmed by analytic solution of the problem for simplest geometries. We discuss an extension of our results to more complex cases.
description: 3pages, 1 figure, submitted to OL
The Biot-Savart operator and electrodynamics on subdomains of the three-sphere
Creators: name: Parsley, Jason
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 57R25, 82D10, 82D15

description: We study steady-state magnetic fields in the geometric setting of positive curvature on subdomains of the three-dimensional sphere. By generalizing the Biot-Savart law to an integral operator BS acting on all vector fields, we show that electrodynamics in such a setting behaves rather similarly to Euclidean electrodynamics. For instance, for current J and magnetic field BS(J), we show that Maxwell's equations naturally hold. In all instances, the formulas we give are geometrically meaningful: they are preserved by orientation-preserving isometries of the three-sphere. This article describes several properties of BS: we show it is self-adjoint, bounded, and extends to a compact operator on a Hilbert space. For vector fields that act like currents, we prove the curl operator is a left inverse to BS; thus the Biot-Savart operator is important in the study of curl eigenvalues, with applications to energy-minimization problems in geometry and physics. We conclude with two examples, which indicate our bounds are typically within an order of magnitude of being sharp.
description: 24 pages (was 28 pages) Revised to include a new introduction, a detailed example, and results about helicity; other changes for readability
Iterative Processes Related to Riordan Arrays: The Reciprocation and the Inversion of Power Series
Creators: name: Luzon, Ana
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 41A65, 05A99

description: We point out how Banach Fixed Point Theorem, and the Picard successive approximation methods induced by it, allows us to treat some mathematical methods in Combinatorics. In particular we get, by this way, a proof and an iterative algorithm for the Lagrange Inversion Formula.
description: 17 pages. We extend the results in the previuous version proving finally the Lagrange Inversion Formula via Banach Fixed Point Theorem
Estudo comparativo do ensino superior em Turismo no Brasil e em Portugal
Creators: name: Souza, Raul José De
name: Cachinho, Herculano Alberto Pinto
name: Salgado, Manuel
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Este estudo analisa, de modo comparativo, a realidade do ensino superior em turismo e a sua oferta formativa no Brasil e em Portugal. Neste âmbito, pretende-se conhecer a sua evolução e realidade atual com vista a apontar alguns cenários futuros e desafios comuns que, eventualmente, se desenvolvam em ambos os países no que referente às modalidades de formação superior em turismo, com uma apreciação particular da oferta formativa no ensino politécnico. Constatou-se uma forte expansão desta oferta no ensino superior, com o principal intuito de suprir necessidades de formação e consequente qualificação de profissionais para o setor, representando, também, um desafio para as instituições de ensino que, muitas vezes, perpassou a própria necessidade existente no mercado de emprego. Destaque, contudo, para o papel que tem procurado cumprir o ensino politécnico, no que respeita à oferta de um currículo com orientação vocacional que atenda às necessidades de formação e qualificação tecnológica em turismo, nomeadamente em países de economia emergente.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)
Quasi-Kähler groups, 3-manifold groups, and formality
Creators: name: Dimca, Alexandru
name: Papadima, Stefan
name: Suciu, Alexander I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14F35, 20F34, 57N10, 55N25, 55P62

description: In this note, we address the following question: Which 1-formal groups occur as fundamental groups of both quasi-Kähler manifolds and closed, connected, orientable 3-manifolds. We classify all such groups, at the level of Malcev completions, and compute their coranks. Dropping the assumption on realizability by 3-manifolds, we show that the corank equals the isotropy index of the cup-product map in degree one. Finally, we examine the formality properties of smooth affine surfaces and quasi-homogeneous isolated surface singularities. In the latter case, we describe explicitly the positive-dimensional components of the first characteristic variety for the associated singularity link.
description: 18 pages; accepted for publication in Mathematische Zeitschrift
Analyse des effets de l'ouverture commerciale et de la stabilité politique sur la croissance économique de la zone UEMOA
Creators: name: Abdoulaye MAΪGA
name: Souaïbou Samba Lamine TRAORÉ
name: Ibrahima SANOGO
name: Abdoulaye SOUMAÏLA MOULAYE
name: Amadou BAMBA
Publisher: name: Zenodo
Year: 2023

description: L’objectif de ce travail est d’analyser les effets de l’ouverture commerciale et de la stabilité politique sur la croissance économique dans la zone UEMOA durant la période 1990-2021. Après les tests de stationnarité, le modèle GMM proposé par Arellano and Bond (1991) a été choisi pour faire l’estimation. A l’issue de ces analyses, les résultats ont montré que le taux d'ouverture et la stabilité politique ont des effets positifs et significatifs sur la croissance économique. Le taux d'ouverture est significatif à un niveau de confiance de 5%, suggérant que l'ouverture économique peut favoriser la croissance économique. Quant à la stabilité politique, elle est statistiquement significative à un niveau de confiance de 5%, ce qui suggère qu'un environnement politique stable peut favoriser une croissance économique plus soutenue.
A importância das áreas científicas em cursos de licenciatura em Turismo
Creators: name: Salgado, Manuel António Brites
name: Costa, Carlos Manuel Martins Da
name: Lemos, Fernando Manuel Florim Ribeiro De
name: Correia, Luís Manuel Mendes
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O estudo afere sobre a situação atual da educação em Turismo no ensino superior em Portugal, interpretando as mudanças que estão a ocorrer nos processos educativos após a plena implementação do Processo de Bolonha (PB). Assim, o objetivo principal é o de conhecer essas mudanças, bem como as decorrentes da utilização mais recente dos sistemas de avaliação e acreditação nos cursos de 1.º ciclo nesta área do conhecimento científico. A análise da contribuição dos sistemas de avaliação e acreditação da oferta formativa na área do Turismo pode permitir perspetivar a evolução futura desta área científica, também nos restantes níveis de ensino, com vista a compreender a sua articulação vertical, sobretudo com os cursos de 2.º e 3.º ciclos. A metodologia de pesquisa baseia-se essencialmente na análise de dados secundários recolhidos para o efeito no site da Agência de Avaliação e Acreditação do Ensino Superior (A3ES), decorrente da necessidade de examinarmos transversalmente algumas variáveis científicas e curriculares dos cursos selecionados, com o intuito de compreender a natureza científica do Turismo, sobretudo criando uma perspetiva holística de reflexão sobre os resultados dos processos de avaliação e de acreditação desenvolvidos pela A3ES. O desenvolvimento curricular e a qualidade da formação, neste domínio científico, dependem também da ponderação das várias áreas científicas, que contribuem para a estruturação dos curricula de licenciatura, pelo que será possível equacionar a importância relativa de cada uma e o modelo adotado pela instituição.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)
Ensino superior em turismo: perspectivas e desafios
Creators: name: Albuquerque, Fernanda De Alencar Machado
name: Neto, Armindo Quillici
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O estudo apresentado é parte da pesquisa realizada na Tese de Doutorado do Programa de Pós-Graduação em Educação da Universidade Federal de Uberlândia/MG, norteada pelo percurso histórico dos cursos de turismo em Belo Horizonte/MG, no período de 1974 a 2012 e intitulada Trajetória histórica dos cursos superiores de turismo em Belo Horizonte (1974-2012): Entre o determinismo do mercado e a crise da formação profissional. A partir daí, o presente trabalho tem como objetivo analisar o surgimento dos cursos de turismo, apontando as tentativas de ajustes da formação profissional do turismólogo. Como fundamentação teórica, buscou-se na literatura a temática referente à investigação sendo objeto de análise os quatro cursos superiores existentes. Dessa forma, foram analisados os currículos dos cursos; foi avaliada a formação dos professores; foi apresentada a relação candidato por vaga e a evolução dos alunos concluintes; e, por fim, foi conhecida a constituição das estruturas dos laboratórios de aprendizagem para as atividades práticas e suas ações através da pesquisa e extensão.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)
Segurança em turismo: abordagem através da formação superior em turismo
Creators: name: Amorim, Ericka
name: Coelho, João Pinto
name: Pires, Sandra
name: Pratt, Christopher
name: Figueira, Luís Mota
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Após os atentados de 11 de setembro, as questões da segurança, sobretudo no contexto do turismo, ganharam força e notoriedade numa conjuntura mundial. Contudo, para além das questões relacionadas com o terrorismo, as preocupações com a segurança envolvem também aspetos ligados aos riscos e à criminalidade, bem como aspetos de ordem pessoal/individual, como doenças, comportamentos de risco relacionados à ingestão de drogas, bebidas alcoólicas, sexo desprotegido com desconhecidos, entre outros. A pesquisa realizada tem como principal objetivo identificar a importância da inclusão da segurança na formação dos profissionais do turismo. Nesse sentido, foram aplicados 109 questionários a especialistas na área de formação destes profissionais, como coordenadores de cursos, docentes e investigadores. Além deste inquérito, foi feita uma análise da oferta dos cursos na área do turismo em Portugal, no sentido de identificar se a segurança é contemplada de forma relevante e a forma como a mesma é abordada.
description: Revista Turismo & Desenvolvimento, vol. 1 n.º 21/22 (2014)