cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Secrecy Degress of Freedom of the Multi-Antenna Block Fading Wiretap Channels
Creators: name: Kobayashi, Mari
name: Piantanida, Pablo
name: Yang, Sheng
name: Shamai, Shlomo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the multi-antenna wiretap channel in which the transmitter wishes to send a confidential message to its receiver while keeping it secret to the eavesdropper. It has been known that the secrecy capacity of such a channel does not increase with signal-to-noise ratio when the transmitter has no channel state information (CSI) under mild conditions. Motivated by Jafar's robust interference alignment technique, we study the so-called staggered multi-antenna block-fading wiretap channel where the legitimate receiver and the eavesdropper have different temporal correlation structures. Assuming no CSI at transmitter, we characterize lower and upper bounds on the secrecy degrees of freedom (s.d.o.f.) of the channel at hand. Our results show that a positive s.d.o.f. can be ensured whenever two receivers experience different fading variation. Remarkably, very simple linear precoding schemes provide the optimal s.d.o.f. in some cases of interest.
description: to appear in Proc. of IEEE International Symposium on Information Theory (ISIT2010)
Fatores competitivos dos hotéis: o caso dos hotéis de cinco estrelas da cidade de Lisboa
Creators: name: Mendes, Maria Catarina Brito
name: Carneiro, Maria João
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: A concorrência no setor hoteleiro é cada vez mais agressiva, sendo fundamental os hotéis terem uma diversidade de recursos e formas flexíveis de responder às necessidades de um mercado em constante mudança. Apesar da relevância da competitividade na hotelaria, a investigação sobre estratégias para incrementar a competitividade dos hotéis é escassa, existindo pouca investigação aprofundada sobre o impacte de alguns fatores na competitividade dos hotéis. No presente artigo pretende analisar-se mais aprofundadamente a importância de quatro fatores competitivos que revelaram ter maior relevância na literatura: os recursos humanos, a tecnologia, o marketing e o produto. Pretende-se ainda, através de um estudo empírico com base em entrevistas semiestruturadas realizadas a diretores de hotéis de cinco estrelas da cidade de Lisboa, analisar a relevância dos quatro fatores mencionados na competitividade destes hotéis de luxo. Os resultados revelam que os quatro fatores considerados são muito relevantes para a competitividade dos hotéis de cinco estrelas em análise e identificam-se importantes estratégias para os hotéis de cinco estrelas alcançarem competitividade ao nível dos quatro fatores em estudo.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Additional file 2 of Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
Creators: name: Wang, Xinrui
name: Han, Lili
name: Rong, Jiaqing
name: Ren, Huiying
name: Liu, Wenhua
name: Zhang, Can
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2.
Pseudo-proper ferroelectricity in thin films
Creators: name: Cano, A.
name: Levanyuk, A. P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study ferroelectricity in thin films of pseudo-proper ferroelectrics such as the so-called spiral multiferroics. We find that this type of ferroelectricity stands better against depolarizing fields than conventional one. Its single-domain state can be easily preserved by metallic electrodes even in ultrathin films. In fact, single-domain ferroelectricty can be generated as a metastable state in the absence of electrodes. We also find a new regime of small thickness where unscreened films develop unusual multi-domain states with properties determined by non-electrostatic boundary conditions.
description: v2: partially rewritten. v3: totally rewritten (statement about the suppression of the multidomain state without electrodes corrected), 5 pages, 1 figure, 1 appendix
Customer Relationship Management e fidelização do cliente em hotelaria
Creators: name: Portela, Daniela
name: Vieira, Armando Luís
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O Customer Relationship Management (CRM) é um tema bem estabelecido na literatura e é uma ferramenta muito popular junto dos gestores das organizações prestadoras de serviços com elevada interação com a clientela. No entanto, existe ainda alguma ambiguidade relativamente ao conceito de CRM e bastante diversidade na forma como é utilizado com vista à fidelização de clientes, nomeadamente no setor hoteleiro. A presente investigação pretende perceber de que modo, na prática, os hotéis utilizam esta ferramenta no sentido de reter clientes. Para tal, foi adotada uma metodologia de investigação baseada em caso de estudo múltiplo, onde foram analisados cinco hotéis pertencentes a cadeias hoteleiras nacionais e internacionais. Os resultados sugerem que todos os hotéis entrevistados praticam CRM, mesmo os que afirmam não possuir as ferramentas tecnológicas que automatizem todo o processo. Os hotéis procuram essencialmente, através da implementação do CRM, aumentar a retenção e fidelização dos seus clientes.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Additional file 3: of Genotype-phenotype correlation analysis of MYO15A variants in autosomal recessive non-syndromic hearing loss
Creators: name: Zhang, Jing
name: Guan, Jing
name: Wang, Hongyang
name: Yin, Linwei
name: Wang, Dayong
name: Zhao, Lidong
name: Zhou, Huifang
name: Wang, Qiuju
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Computational Biology

description: Table S2. Variants of MYO15A detected in this study. (DOCX 25 kb)
Leuctra hippopus
Creators: name: Cherchesova, S. K
name: Shioloshvili, M. N
name: Yakimov, A. V.
name: Nemno, E. V.
name: L`vov, V. D.
name: Kovilyaeva, N. E.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Leuctridae
Leuctra
Leuctra hippopus

description: 17. Leuctra hippopus (Kempny 1899) Distribution. Like the previous species, it is widely distributed in the foothill zone and is found in similar habitat.
description: Published as part of Cherchesova, S. K, Shioloshvili, M. N, Yakimov, A. V., Nemno, E. V., L`vov, V. D. & Kovilyaeva, N. E., 2012, Stoneflies (Insecta, Plecoptera) Of Kabarda-Balkarian Republic (The Central Caucasus), pp. 174-181 in Illiesia 8 (19) on page 179, DOI: 10.5281/zenodo.4753237
Predictability of localized plasmonic responses in nanoparticle assemblies
Creators: name: Roccapriore, Kevin M.
name: Ziatdinov, Maxim
name: Cho, Shin Hum
name: Hachtel, Jordan A.
name: Kalinin, Sergei V.
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: nanoparticles

description: Design of nanoscale structures with desired optical properties is a key task for nanophotonics. Here, the correlative relationship between local nanoparticle geometries and their plasmonic responses is established using encoder-decoder neural networks. In the im2spec network, the relationship between local particle geometries and local spectra is established via encoding the observed geometries to a small number of latent variables and subsequently decoding into plasmonic spectra; in the spec2im network, the relationship is reversed. Surprisingly, these reduced descriptions allow high-veracity predictions of local responses based on geometries for fixed compositions and surface chemical states. Analysis of the latent space distributions and the corresponding decoded and closest (in latent space) encoded images yields insight into the generative mechanisms of plasmonic interactions in the nanoparticle arrays. Ultimately, this approach creates a path toward determining configurations that yield the spectrum closest to the desired one, paving the way for stochastic design of nanoplasmonic structures.
Aktivitäten im Rahmen der Sektion „Landeskunde und Umweltbildung“ zum Themenkomplex Moorarchäologie/kulturelles Erbe in Mooren
Creators: name: Briel, Mirjam
Publisher: name: FID GEO
Year: 2024
Subjects: subject: 553.21
subject: 930.1
subject: Moor
subject: Torf
subject: Peatland
subject: peat
subject: Archäologie
subject: FID-GEO-DE-7

description: Sektionsbericht.
Monotone spectral density estimation
Creators: name: Anevski, Dragi
name: Soulier, Philippe
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: We propose two estimators of a monotone spectral density, that are based on the periodogram. These are the isotonic regression of the periodogram and the isotonic regression of the log-periodogram. We derive pointwise limit distribution results for the proposed estimators for short memory linear processes and long memory Gaussian processes and also that the estimators are rate optimal.
description: Published in at http://dx.doi.org/10.1214/10-AOS804 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Additional file 3 of Endolysins of bacteriophage vB_Sal-S-S10 can naturally lyse Salmonella enteritidis
Creators: name: Wang, Xinrui
name: Han, Lili
name: Rong, Jiaqing
name: Ren, Huiying
name: Liu, Wenhua
name: Zhang, Can
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3.
(Non)renormalizability of the D-deformed Wess-Zumino model
Creators: name: Dimitrijevic, Marija
name: Nikolic, Biljana
name: Radovanovic, Voja
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue the analysis of the $D$-deformed Wess-Zumino model which was started in the previous paper. The model is defined by a deformation which is non-hermitian and given in terms of the covariant derivatives $D_α$. We calculate one-loop divergences in the two-point, three-point and four-point Green functions. We find that the divergences in the four-point function cannot be absorbed and thus our model is not renormalizable. We discuss possibilities to render the model renormalizable.
description: 19 pages; version accepted for publication in Phys.Rev.D; new section with the detailed discussion on renormalizabilty added and a special choice of coupling constants which renders the model renormalizable analyzed
R-axion detection at LHC
Creators: name: Goh, Hock-Seng
name: Ibe, Masahiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Supersymmetric models with spontaneously broken approximate R-symmetry contain a light spin 0 particle, the R-axion. The properties of the particle can be a powerful probe of the structure of the new physics. In this paper, we discuss the possibilities of the R-axion detection at the LHC experiments. It is challenge to observe this light particle in the LHC environment. However, for typical values in which the mass of the R-axion is a few hundred MeV, we show that those particles can be detected by searching for displaced vertices from R-axion decay.
description: 20 pages, 4 figures, minor corrections, references added
Relação entre orientação estratégica e ambiente no setor de hospedagem em Florianópolis (SC-Brasil)
Creators: name: Rossetto, Carlos Ricardo
name: Verdinelli, Miguel Angel
name: Rossetto, Adriana Marques
name: Carvalho, Carlos Eduardo
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Esta pesquisa teve como objetivo evidenciar a relação entre ambiente organizacional e comportamento estratégico na percepção dos gerentes de pousadas da área metropolitana de Florianópolis, tendo em vista ser o setor hoteleiro o de maior crescimento no país e especialmente em Santa Catarina. A pesquisa foi descritiva e quantitativa. Os dados foram obtidos com base num inquérito por questionário e devido ao tamanho da população (122 pousadas), decidiu-se efetuar um censo. Os gerentes das pousadas percebem o ambiente estático-simples para a variável ‘Embratur’ e analisam com mais frequência as variáveis ‘políticas’ e ‘tecnologia’. Aquelas variáveis percebidas com maior intensidade são ‘legislação’ e ‘sociais’, enquanto a percepção de menos intensidade é ‘Embratur’ e ‘fornecedores’. O comportamento dos gestores das pousadas foi, predominantemente, reativo. O controlo do número de funcionários é associado positivamente ao comportamento analista, comportamento que é adotado pelas empresas que percebem maior intensidade de mudanças nas variáveis ‘tecnologia’, ‘concorrentes’ e ‘fornecedores’. As empresas com comportamento defensivo percebem com maior intensidade a variável ‘política’ e as empresas que percebem com maior intensidade a variável ‘Embratur’, adotam comportamento reativo.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Bericht über die Jahrestagung der Deutschen Gesellschaft für Moor- und Torfkunde (DGMT) e. V. 2024
Creators: name: Briel, Mirjam
name: Lechner, Andreas
Publisher: name: FID GEO
Year: 2024
Subjects: subject: 553.21
subject: Moor
subject: Torf
subject: Peatland
subject: peat
subject: FID-GEO-DE-7

description: Tagungsbericht.
Assembling Inorganic Nanocrystal Gels
Creators: name: Green, Allison M.
name: Ofosu, Charles K.
name: Kang, Jiho
name: Anslyn, Eric V.
name: Truskett, Thomas M,
name: Milliron, Delia J.
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Nanocrystal

description: Inorganic nanocrystal gels retain distinct properties of individual nanocrystals while offering tunable, network structure-dependent characteristics. We review different mechanisms for assembling gels from colloidal nanocrystals including (1) controlled destabilization, (2) direct bridging, (3) depletion, as well as linking mediated by (4) coordination bonding or (5) dynamic covalent bonding, and we highlight how each impacts gel properties. These approaches use nanocrystal surface chemistry or the addition of small molecules to mediate inter-nanocrystal attractions. Each method offers advantages in terms of gel stability, reversibility, or tunability and presents new opportunities for design of reconfigurable materials and fueled assemblies.
A Radio System for Avoiding Illuminating Aircraft with a Laser Beam
Creators: name: Coles, W. A.
name: Murphy, T. W.
name: Melser, J. F.
name: Tu, J. K.
name: White, G. A.
name: Kassabian, K. H.
name: Bales, K.
name: Baumgartner, B. B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: When scientific experiments require transmission of powerful laser or radio beams through the atmosphere the Federal Aviation Administration (FAA) requires that precautions be taken to avoid inadvertent illumination of aircraft. Here we describe a highly reliable system for detecting aircraft entering the vicinity of a laser beam by making use of the Air Traffic Control (ATC) transponders required on most aircraft. This system uses two antennas, both aligned with the laser beam. One antenna has a broad beam and the other has a narrow beam. The ratio of the transponder power received in the narrow beam to that received in the broad beam gives a measure of the angular distance of the aircraft from the axis that is independent of the range or the transmitter power. This ratio is easily measured and can be used to shutter the laser when the aircraft is too close to the beam. Prototype systems operating on astronomical telescopes have produced good results.
description: 16 pages; 8 figures (3 in color); submitted to PASP
title: Anomalías del desarrollo cortical: Hallazgos en RM.
Creators: name: Serna Castro, Tatiana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR
subject: Imaging sequences
subject: Genetic defects

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
-Revisar los hallazgos en RM de los distintos tipos de anomalías del desarrollo cortical cerebral a propósito de los casos diagnosticados en nuestro...
The algebraic difference of two random Cantor sets: The Larsson family
Creators: name: Dekking, Michel
name: Simon, Károly
name: Székely, Balázs
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: In this paper, we consider a family of random Cantor sets on the line and consider the question of whether the condition that the sum of the Hausdorff dimensions is larger than one implies the existence of interior points in the difference set of two independent copies. We give a new and complete proof that this is the case for the random Cantor sets introduced by Per Larsson.
description: Published in at http://dx.doi.org/10.1214/10-AOP558 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A cooperação em rede como factor de alavancagem na hotelaria
Creators: name: Almeida, Sofia
name: Costa, Carlos
name: Simões, José Manuel
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O Turismo é um sector em crescimento e sobretudo resiliente, não obstante os acontecimentos sociais, económicos e políticos que têm caracterizado a sociedade nas últimas décadas. A oferta hoteleira tem acompanhado este movimento crescente e as grandes cadeias hoteleiras procuram novas formas de expansão, criando ou adquirindo novos hotéis e desenvolvendo a sua presença nos mercados emergentes. As pequenas unidades hoteleiras também pululam, mas com obstáculos acrescidos, nomeadamente as dificuldades ao nível dos recursos disponíveis para apostar em estratégias de internacionalização ou em estratégias mais agressivas na distribuição online. Neste contexto, surgem as redes de hotéis independentes que funcionam como consórcios e pretendem apoiar as pequenas unidades na sua estratégia promocional, de marketing e comercial. Noutra perspetiva, os consórcios procuram vantagens competitivas para se diferenciarem no mercado. A sua estratégia passa por aumentar a dimensão para ganhar massa crítica e maior capacidade de negociação. Outra das vantagens competitivas é a especialização em nichos de mercado, onde cada consórcio procura a sua quota de mercado. É neste contexto que o presente trabalho se posiciona, nomeadamente no que concerne às redes de hotéis, às suas vantagens e dificuldades num mercado cada mais complexo e competitivo. Este artigo pretende apresentar um estudo de caso relativo a um consórcio português com 136 unidades hoteleiras e discutir de que forma as redes podem ser um factor de alavancagem na hotelaria.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
title: Papel actual de la URO-TC en el diagnóstico de patología renal y urológica.
Creators: name: Rivera Alcántara, Luz Altagracia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen
subject: Kidney
subject: Urinary Tract / Bladder
subject: CT
subject: Contrast agent-intravenous
subject: Neoplasia

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
- Definir el concepto de URO-TC y describir los protocolos técnicos más aceptados. - Ventajas y potenciales desventajas de la URO-TC. - Destacar el rol actual de la URO-TC en el diagnóstico de la patología renal y urológica mas...
Avaliação de desempenho com a técnica de DEA e Índice Malmquist na hotelaria: o caso do Grupo Pestana
Creators: name: Xavier, José Manuel
name: Moutinho, Victor Manuel Ferreira
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Este artigo tem como finalidade contribuir para a melhoria de desempenho na hotelaria, comparando a performance entre unidades de decisão, concretamente as unidades do Grupo Pestana. Tendo em conta as atividades operacionais das unidades hoteleiras, aplicou-se o modelo Data Envelopment Analysis (DEA) para avaliar a performance e comparou-se os níveis de desempenho com recurso ao Índice de Malmquist. Tendo em conta as características da envolvente interna nestas unidades, foram utilizados inputs ao nível de custos operacionais e como outputs, proveitos e taxas de ocupação com dados disponíveis de 2010 e 2011. Os resultados indicam que as unidades hoteleiras que apresentaram melhor desempenho, este se deveu a uma maior eficiência de recursos utilizados, e a uma maior produtividade junto da fronteira de produção de produtos e serviços turísticos de alojamento e restauração fornecidos. Possivelmente, esta maior produtividade esteve relacionada com a existência de maior diversidade de produtos ou serviços turísticos fornecidos, o que permitiu atrair maior procura turística. Por outro lado, verificou-se que a dispersão de níveis de eficiência é maior nas maiores unidades devido à ineficiência da sua gestão operacional.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Near term measurements with 21 cm intensity mapping: neutral hydrogen fraction and BAO at z<2
Creators: name: Masui, Kiyoshi Wesley
name: McDonald, Patrick
name: Pen, Ue-Li
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It is shown that 21 cm intensity mapping could be used in the near term to make cosmologically useful measurements. Large scale structure could be detected using existing radio telescopes, or using prototypes for dedicated redshift survey telescopes. This would provide a measure of the mean neutral hydrogen density, using redshift space distortions to break the degeneracy with the linear bias. We find that with only 200 hours of observing time on the Green Bank Telescope, the neutral hydrogen density could be measured to 25% precision at redshift 0.54
description: 6 pages, 5 figures. Submitted to Phys. Rev. D. Addressed reviewer comments. Changed figure format, added more detailed technical discussion, and added forecasts for aperture arrays. Added references.
Empreendedorismo turístico em pequenos territórios insulares: uma análise institucional
Creators: name: Furtado, Jeremias Dias
name: García-Cabrera, Antonia Mercedes
name: García-Soto, María Gracia
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Considerando que as deficiências verificadas no plano institucional de um território inibem a atividade empreendedora da população aí residente, o presente trabalho tem como objetivo esclarecer as relações que justificam tal influência para, a partir do seu conhecimento, encontrar os mecanismos que possibilitem reverter a situação. Especificamente, os interesses de investigação dos autores giram em torno da identificação daqueles fatores institucionais que permitem estimular a atividade turística nas Pequenas Economias Insulares em Desenvolvimento (PEID), nas quais tal atividade empresarial representa uma oportunidade real para alcançar o crescimento económico. Assim, o presente artigo procura dar resposta à seguinte pregunta de partida: que fatores institucionais do ambiente influem na decisão de fundar uma empresa no setor turístico numa PEID? Os resultados encontrados permitem estabelecer diversas proposiçöes de investigação que devem ser exploradas empiricamente para melhorar a compreensão do fenómeno do empreendedorismo turístico e a sua promoção efetiva em tais contextos económicos.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Circuito Estrada Real no Estado de Minas Gerais: influência dos traços culturais brasileiros na gestão de pessoas em organizações hoteleiras
Creators: name: Rodrigues, Vanuza Bastos
name: Luz, Talita Ribeiro Da
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Tendo como contexto o Projeto Estruturador Estrada Real que tem por finalidade promover o desenvolvimento turístico do Estado de Minas Gerais, questionou‑se como estariam ocorrendo as práticas de gestão de pessoas sob o olhar da cultura brasileira, em duas localidades que fazem parte do circuito Estrada Real: Ouro Preto e Conceição do Ibitipoca. Com o objetivo de responder a esta questão, promoveu‑se uma pesquisa empírica com a intenção de identificar os modos de gestão de pessoas aplicados nas organizações participantes. Metodologicamente este estudo tem um caráter qualitativo, exploratório e explicativo, utilizando como instrumento a entrevista semiestruturada para a coleta dos dados e da análise de conteúdo para o seu tratamento. Os resultados obtidos refletem a influência significativa dos traços culturais brasileiros no modelo de gestão de pessoas adotado pelos estabelecimentos pesquisados.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Noncommutative hyperbolic geometry on the unit ball of $B(H)^n$
Creators: name: Popescu, Gelu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L52; 32F45; 47L25; 32Q45

description: In this paper we introduce a hyperbolic distance $δ$ on the noncommutative open ball $[B(H)^n]_1$, where $B(H)$ is the algebra of all bounded linear operators on a Hilbert space $H$, which is a noncommutative extension of the Poincare-Bergman metric on the open unit ball of $C^n$. We prove that $δ$ is invariant under the action of the group $Aut([B(H)^n]_1)$ of all free holomorphic automorphisms of $[B(\cH)^n]_1$, and show that the $δ$-topology and the usual operator norm topology coincide on $[B(H)^n]_1$. Moreover, we prove that $[B(H)^n]_1$ is a complete metric space with respect to the hyperbolic metric and obtained an explicit formula for $δ$ in terms of the reconstruction operator. A Schwarz-Pick lemma for bounded free holomorphic functions on $[B(H)^n]_1$, with respect to the hyperbolic metric, is also obtained.
description: 29 pages
Single Nuclear Spin Cavity QED
Creators: name: Takeuchi, Makoto
name: Takei, Nobuyuki
name: Doi, Kodai
name: Zhang, Peng
name: Ueda, Masahito
name: Kozuma, Mikio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We constructed a cavity QED system with a diamagnetic atom of 171Yb and performed projective measurements on a single nuclear spin. Since Yb has no electronic spin and has 1/2 nuclear spin, the procedure of spin polarization and state verification can be dramatically simplified compared with the pseudo spin-1/2 system. By enhancing the photon emission rate of the 1S0-3P1 transition, projective measurement is implemented for an atom with the measurement time of T_meas = 30us. Unwanted spin flip as well as dark counts of the detector lead to systematic error when the present technique is applied for the determination of diagonal elements of an unknown spin state, which is delta|beta|^2 < 2 * 10^-2. Fast measurement on a long-lived qubit is key to the realization of large-scale one-way quantum computing.
description: 5 pages, 5 figures
Nucleon structure functions from dynamical (2+1)-flavor domain wall fermions
Creators: name: Ohta, Shigemi
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report lattice-volume independence of low moments of nucleon structure functions from the coarse RIKEN-BNL-Columbia (RBC) and UKQCD joint dynamical (2+1)-flavor domain-wall fermions (DWF) ensembles at the lattice cut off of (a^{-1}\sim1.7) GeV. The isovector quark momentum fraction, (< x >_{u-d}), and helicity fraction, (< x >_{Δu - Δd}), both fully non-perturbatively renormalized are studied on two spatial volumes of ((\sim {\rm 2.7 fm})^3) and ((\sim {\rm 1.8 fm})^3). Their naturally renormalized ratio, (< x >_{u-d}/< x >_{Δu - Δd}), is not affected by any finite-size effect. It does not depend strongly on light quark mass and does agree well with the experiment. The respective absolute values, fully non-perturbatively renormalized, do not show any finite-size effect either. They show trending toward the respective experimental values at the lightest up- and down-quark mass. This trending down to the experimental values appears to be a real physical effect driven by lighter quarks. The observations are in contrast to the huge finite-size effect seen in the axial-current form factors.
description: Corrected some confusing typos at the beginning of the introduction and around the equation 2.2. 7 pages, 4 figures, talk presented at The XXVII International Symposium on Lattice Field Theory (Lattice 2009), July 26-31 2009, Peking University, Beijing, China
Tecnologia verde na hotelaria: seus reflexos e entendimentos em um hostel carioca
Creators: name: Mancebo, Eunice
name: Oliveira, Maria Amália Silva Alves De
name: Pereira, Luciano
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Decorrente de uma crescente projeção internacional, o Brasil torna‑se palco de vários eventos mundiais, que virão corroborar para o aumento da oferta de unidades habitacionais, podendo receber hóspedes que primam pela perenidade dos recursos naturais do planeta. Assim, faz‑se necessário o estabelecimento de parâmetros e de sistemas de medição quanto ao grau de adoção dos conceitos de sustentabilidade pela rede hoteleira da Cidade do Rio de Janeiro. O objetivo geral dessa pesquisa foi analisar a aderência do conceito hotelaria verde pelas empresas e identificar práticas sustentáveis e o uso de tecnologia limpa pelos gestores e hóspedes de um empreendimento situado na zona sul da cidade do Rio de Janeiro. Igualmente, por meio de uma pesquisa qualitativa e utilizando‑se da técnica do estudo de caso, foi confirmada a hipótese de que o uso de novas tecnologias aplicadas ao segmento da hotelaria pode reduzir os impactos da atividade do turismo no meio ambiente propiciando mudanças comportamentais refletidas no turista.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Isospin- and momentum-dependent effective interactions for the baryon octet and the properties of hybrid stars
Creators: name: Xu, Jun
name: Chen, Lie-Wen
name: Ko, Che Ming
name: Li, Bao-An
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The isospin- and momentum-dependent MDI interaction, which has been extensively used in intermediate-energy heavy-ion reactions to study the properties of asymmetric nuclear matter, is extended to include the nucleon-hyperon and hyperon-hyperon interactions by assuming same density, momentum and isospin dependence as for the nucleon-nucleon interaction. The parameters in these interactions are determined from the empirical hyperon single-particle potentials in symmetric nuclear matter at saturation density. The extended MDI interaction is then used to study in the mean-field approximation the equation of state of hypernuclear matter and also the properties of hybrid stars by including the phase transition from the hypernuclear matter to the quark matter at high densities. In particular, the effects of attractive and repulsive $Σ$N interactions and different values of symmetry energies on the hybrid star properties are investigated.
description: 13 pages, 12 figures, version to appear in Phys. Rev. C
Enhancers and tools to improve luxury customer experience: hotel managers’ perspective
Creators: name: Veríssimo, Medéia
name: Loureiro, Sandra Maria Correia
Publisher: name: Journal of Tourism & Development
Year: 2014

description: This study aims to explore how luxury hotels create hospitality experiences in order to examine consistency of manager’s statements. To this end, the study included a literature review to understand the major approaches used in creating customer experiences. Following this, thirty in-depth interviews were prepared and carried out with thirty international luxury hotel managers in both Brazil and Portugal. The findings reveal that personalized service, brand image, service quality, client contact and adaptation of services are enhancers of customer experience in luxury hotels. These enhancers together with gastronomy, decoration, spa & wellness, staff and social networks are the most mentioned elements, confirming efforts of hotels to integrate experiences as an important role for hospitality industry. As far as one knows, this is the first attempt to explore the perspectives of luxury hotel managers’ in creating customer experience using in-depth interview approach and content analysis.
description: Journal of Tourism & Development, vol. 4 n.º 21/22 (2014)
Pseudomodes as an effective description of memory: Non-Markovian dynamics of two-state systems in structured reservoirs
Creators: name: Mazzola, L.
name: Maniscalco, S.
name: Piilo, J.
name: Suominen, K. -A.
name: Garraway, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the non-Markovian dynamics of two-state systems in structured reservoirs. We establish a connection between two theoretical quantum approaches, the pseudomodes [B. M. Garraway, Phys. Rev. A 55, 2290 (1997)] and the recently developed non-Markovian quantum jump method [J. Piilo et al., Phys. Rev. Lett. 100, 180402 (2008)]. This connection provides a clear physical picture of how the structured reservoir affects the system dynamics, indicating the role of the pseudomodes as an effective description of the environmental memory.
description: 5 pages, 2 figures. V2: minor changes, published version
In Situ Optical Quantification of Extracellular Electron Transfer Using Plasmonic Metal Oxide Nanocrystals**
Creators: name: Graham, Austin J.
name: Gibbs, Stephen L.
name: Saez Cabezas, Camila A.
name: Wang, Yongdan
name: Green, Allison M.
name: Milliron, Delia J.
name: Keitz, Benjamin K.
Publisher: name: John Wiley & Sons
Year: 2021
Subjects: Nanocrystal

description: Extracellular electron transfer (EET) is a critical form of microbial metabolism that enables respiration on a variety of inorganic substrates, including metal oxides. However, quantifying current generated by electroactive bacteria has been predominately limited to biofilms formed on electrodes. To address this, we developed a platform for quantifying EET flux from cell suspensions using aqueous dispersions of infrared plasmonic tin-doped indium oxide nanocrystals. Tracking the change in optical extinction during electron transfer enabled quantification of current generated by planktonic Shewanella oneidensis cultures. Using this method, we differentiated between starved and actively respiring cells, cells of varying genotype, and cells engineered to differentially express a key EET gene using an inducible genetic circuit. Overall, our results validate the utility of colloidally stable plasmonic metal oxide nanocrystals as quantitative biosensors in aqueous environments and contribute to a fundamental understanding of planktonic S. oneidensis electrophysiology using simple in situ spectroscopy.
New Simple Method for Analysis of Extensive Air Showers
Creators: name: Kh., H. Hedayati
name: Anvari, A.
name: Bahmanabadi, M.
name: Ghomi, M. Khakian
name: Samimi, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Cosmic rays have valuable information about universe surroundings us. Finding energy, mass and arrival direction of primary cosmic ray particle are the most important aspects of extensive air shower studies. In order to determine these parameters, arrival direction and core position of extensive air showers should be determined at first. In this article, a new method has been introduced that utilizes arrival time information of secondary particles of extensive air showers for finding their core location and correcting plane wave front approximation so that calculate the arrival direction of extensive air showers. This method does not need number sensitive detectors-detectors which are sensitive to the number of crossing particles- and consequently there is no need for lateral distribution models. This model has been developed by analysis of simulated events generated by CORSIKA package.
description: published, and superseded by arXiv:1103.0662
Investimento público em turismo como alavanca para o desenvolvimento local: o caso da Região Norte de Portugal
Creators: name: Dinis, Catarina Ferreira Dias
name: Costa, Rui Augusto Da
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O turismo é uma indústria com uma relevância incontestável, pela influência que exerce no desenvolvimento e criação de riqueza nos destinos. O papel e suporte do setor público como alavanca para o desenvolvimento da atividade turística é evidente, nomeadamente no que diz respeito a questões relacionadas com o investimento. O planeamento do turismo reveste‑se de grande importância, neste contexto, com especial enfoque para as políticas definidas ao nível local. Sem estas, seria difícil criar as condições necessárias para o crescimento e desenvolvimento do setor do turismo e para o aumento da atração e fixação de visitantes nos destinos. O presente artigo incide sobre a Região Norte de Portugal (RNP), e apresenta as principais dinâmicas de investimento em turismo, por parte do setor público, no período compreendido entre 2007 e 2013, no âmbito do Programa Operacional Regional do Norte (ON.2). As principais conclusões relacionadas com o investimento público em turismo nesta região têm como base a divisão deste território nos seus 4 destinos turístico‑promocionais (Minho, Trás‑os‑Montes, Porto e Douro), no sentido de identificar semelhanças e/ou diferenças entre os mesmos.
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Turismo cultural e economia do património
Creators: name: Queirós, António Dos Santos
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: No âmbito da economia do turismo cultural e de natureza, procurou‑se centrar a análise deste estudo no processo de geração de valor e a produção de mais‑valias, questionando a sua gestação e o modo como emergem nas cadeias de valor da atividade turística, a partir da reflexão hermenêutica sobre três questões: (i) forma e essência do recurso turístico; (ii) valor acrescentado e criação da mercadoria (produto) turístico; (iii) reprodução do capital turístico. Para chegar ao conceito das suas ‘externalidades’, que é fundamental para a compreensão do carácter específico da economia do turismo, da sua produtividade e competitividade. Sobre esta base, concetual e metodológica, foram elaborados os conceitos de ‘rota’ e ‘circuito turístico’, assentes numa metodologia científica inter e pluridisciplinar para organizar e guiar a visita ao destino turístico, que permite ler, interpretar e usufruir as suas paisagens culturais. Finalmente procurou‑se estabelecer critérios concetuais uniformes e coerentes para identificar e distinguir as diferentes categorias tipológicas do turismo, confrontando‑as com a matriz da Conta Satélite do Turismo (CST), num contexto internacional onde emergem diferentes paradigmas, com a ascensão do turismo cultural e de natureza (turismo ambiental).
description: Revista Turismo & Desenvolvimento, vol. 4 n.º 21/22 (2014)
Implication of the PAMELA antiproton data for dark matter indirect detection at LHC
Creators: name: Boehm, Celine
name: Delahaye, Timur
name: Salati, Pierre
name: Staub, Florian
name: Singh, Ritesh K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Since the PAMELA results on the "anomalously" high positron fraction and the lack of antiproton excess in our Galaxy, there has been a tremendous number of studies advocating new types of dark matter, with larger couplings to electrons than to quarks. This raises the question of the production of dark matter particles (and heavy associated coloured states) at LHC. Here, we explore a very simple benchmark dark matter model and show that, in spite of the agreement between the PAMELA antiproton measurements and the expected astrophysical secondary background, there is room for large couplings of a WIMP candidate to heavy quarks. Contrary to what could have been naively anticipated, the PAMELA pbar/p measurements do not challenge dark matter model building, as far as the quark sector is concerned. A quarkophillic species is therefore not forbidden.Owing to these large couplings, one would expect that a new production channel opens up at the LHC, through quark--quark and quark--gluon interactions. Alas, when the PDF of the quark is taken into account, prospects for a copious production fade away.
description: 7 pages, 2 figures, captions of some figures modified, main conclusion unchanged
Linked Open Data per il mondo antico
Creators: name: , Berti
Publisher: name: Zenodo
Year: 2022
Subjects: digital humanities
digital philology
digital classics

description: Slides for the workshop Digital Humanities in pratica. Il ruolo delle tecnologie digitali nello studio, nella ricostruzione e nella preservazione del mondo antico, Collegio Ghislieri, Pavia, February 25-26, 2022
Neutrality point of graphene with coplanar charged impurities
Creators: name: Fogler, M. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The ground-state and the transport properties of graphene subject to the potential of in-plane charged impurities are studied. The screening of the impurity potential is shown to be nonlinear, producing a fractal structure of electron and hole puddles. Statistical properties of this density distribution as well as the charge compressibility of the system are calculated in the leading-log approximation. The conductivity depends logarithmically on $α$, the dimensionless strength of the Coulomb interaction. The theory is asymptotically exact when $α$ is small, which is the case for graphene on a substrate with a high dielectric constant.
description: (v3) 4 pages main paper, 2 pages supplementary info, no figures
Colorimetric quantification of linking in thermoreversible nanocrystal gel assemblies
Creators: name: Kang, Jiho
name: Valenzuela, Stephanie A.
name: Lin, Emily Y.
name: Dominguez, Manuel N.
name: Sherman, Zachary M.
name: Truskett, Thomas M.
name: Anslyn, Eric V.
name: Milliron, Delia J.
Publisher: name: American Association for the Advancement of Science
Year: 2022
Subjects: Nanocrystal

description: Nanocrystal gels can be responsive, tunable materials, but designing their structure and properties is challenging. By using reversibly bonded molecular linkers, gelation can be realized under conditions predicted by thermody- namics. However, simulations have offered the only microscopic insights, with no experimental means to monitor linking leading to gelation. We introduce a metal coordination linkage with a distinct optical signature allowing us to quantify linking in situ and establish structural and thermodynamic bases for assembly. Because of coupling between linked indium tin oxide nanocrystals, their infrared absorption shifts abruptly at a chemically tunable gelation temperature. We quantify bonding spectroscopically and use molecular simulation to understand temperature-dependent bonding motifs, revealing that gel formation is governed by reaching a critical number of effective links that extend the nanocrystal network. Microscopic insights from our colorimetric linking chemistry enable switchable gels based on thermodynamic principles, opening the door to rational design of programmable nanocrystal networks.
Work and Family: a complex interplay. An Italian application of the DISC Model on health care workers
Creators: name: Bova, Nicoletta <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: M-PSI/06 Psicologia del lavoro e delle organizzazioni

description: The present thesis investigates the issue of work-family conflict and facilitation in a sanitarian contest, using the DISC Model (De Jonge and Dormann, 2003, 2006). The general aim has been declined in two empirical studies reported in this dissertation chapters. Chapter 1 reporting the psychometric properties of the Demand-Induced Strain Compensation Questionnaire. Although the empirical evidence on the DISC Model has received a fair amount of attention in literature both for the theoretical principles and for the instrument developed to display them (DISQ; De Jonge, Dormann, Van Vegchel, Von Nordheim, Dollard, Cotton and Van den Tooren, 2007) there are no studies based solely on psychometric investigation of the instrument. In addition, no previous studies have ever used the DISC as a model or measurement instrument in an Italian context. Thus the first chapter of the present dissertation was based on psychometric investigation of the DISQ. Chapter 2 reporting a longitudinal study contribution. The purpose was to examine, using the DISC model, the relationship between emotional job characteristics, work-family interface and emotional exhaustion among a health care population. We started testing the Triple Match Principle of the DISC Model using solely the emotional dimension of the strain-stress process (i.e. emotional demands, emotional resources and emotional exhaustion). Then we investigated the mediator role played by w-f conflict and w-f facilitation in relation to emotional job characteristics and emotional exhaustion. Finally we compared the mediator model across workers involved in chronic illness home demands and workers who are not involved. 
Finally, a general conclusion, integrated and discussed the main findings of the studies reported in this dissertation.