cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Studi ed approfondimenti sulla composizione in acidi grassi del latte bovino di razza Reggiana con diverso fenotipo per k-caseina e Beta-lactoglobulina
Creators: name: Melia, Selenia <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: AGR/15 Scienze e tecnologie alimentari

description: The aim of the present study was to examine the association between milk protein polymorphism and fatty acids profiles of bovine milk. Milk samples were collected from each of 55 Reggiana cows during early, mid and late lactation, respectively, in two farms within the production area of Parmigiano Reggiano cheese. Identification and quantification of fatty acids were performed by gas chromatography. Milk fatty acid composition using cows of differing κ-casein (κ-Cn) and β-lactoglobulin (β-Lg) phenotypes was investigated. Statistically significant results regarding the associations between milk fatty acid composition and κ-Cn phenotype were found, in particular, κ-Cn BB seems to influence de novo fatty acid synthesis in the mammary gland. Also κ-Cn AB seems to have the same effect. Proportions of C10:0 (2,29a AA; 2,53b AB; 2,59b BB), C12:0 (2,77a AA; 3,17b AB; 3,20b BB) and C14:0 (9,22a AA; 10,25b AB; 10,27b BB) were higher in the milk from cows with κ-Cn phenotype AB and BB vs κ-Cn phenotype AA (p<0,05). Conversely C18:0 (7,84b AA; 7,20a,b AB; 6,94a BB) and C18:1  (19,19b AA; 16,81a AB; 16,79a BB) were lower in the milk from cows with κ-Cn phenotype AB and BB vs κ-Cn phenotype AA. The association between milk fatty acid composition and β-Lg phenotype was not statistically significant, except for some fatty acids. In particular, C12:0 (3,05a AA; 3,04a AB; 3,33b BB) was higher in the milk from cows with β-Lg phenotype BB vs β-Lg phenotype AA and AB (p<0,05). Concentrations of C18:0 (6,93a AA; 7,86b AB; 6,59a BB) and C18:1 (16,74a,b AA; 18,24b AB; 16,07a BB) were lower in the milk from cows with β-Lg phenotype AA and BB vs β-Lg phenotype AB (p<0,05).
Moreover this research, carried out in farms within the Parmigiano Reggiano cheese district, analysed also the size distribution of fat globules in bulk milk of Reggiana and Frisona breed cows. In particular, the size distribution of individual milk fat globules of Reggiana cows with differing    κ-Cn phenotypes was considered. From first observations, no statistically significant differences were observed.
RESEARCH OF DEVELOPMENT POSSIBILITIES OF ESTATES TOURISM IN CRIMEA
Creators: name: Selivanov Victor, V.
Publisher: name: Современные проблемы сервиса и туризма
Year: 2021
Subjects: ИСТОРИЧЕСКОЕ НАСЛЕДИЕ
КОНКУРЕНТОСПОСОБНОСТЬ
КУЛЬТУРНЫЕ ТРАДИЦИИ
ТУРИСТСКИЙ ПРОДУКТ
УСАДЕБНЫЙ ТУРИЗМ

description: Currently, the historical and cultural heritage most often motivates tourists for travel. It determines the increase in tourist flows, positive image of the region and the further promotion of the tourist product in the service market. The uniqueness of Crimean historical heritage lies in the cultural diversity of the historical and cultural heritage. Solving an urgent problem that is the returning of the image of the Crimea as a region attractive to tourists, is possible only on the basis of the development of a unified state policy and national tourism concept, the preparation of a competitive tourist product and its promotion. The Crimea, as a potential object of tourist interest, can become one of the leading cultural centers in the South of our country while fulfilling one of the strategic development directions of a new cultural space. The estate tourism is one of the important vectors for the tourist activity development. Manor objects (villas, mansions, estates) or manor ensembles that have significant tourism potential are the most attractive objects. They are attractive for a large number of recreational lovers. Crimea having its unique display objects, both natural, cultural and historical, can become the basis for the formation of a southern tourist center for the development of estate tourism.
Sviluppo di tecniche di analisi ifenate per la quantificazione di biomarcatori di esposizione a tossici ambientali: gli acidi mercapturici
Creators: name: Indiveri, Paolo <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: MED/44 Medicina del lavoro

description: Human biomonitoring (HBM) is an ideal tool for evaluating toxicant exposure in health risk assessment. Chemical substances or their metabolites related to environmental pollutants can be detected as biomarkers of exposure using a wide variety of biological fluids.
Individual exposure to aromatic hydrocarbon compounds (benzene, toluene, and o-xylene –“BTX”) were analysed with a liquid chromatography coupled to electrospray ionisation-mass spectrometry (μHPLC-ESI-MS/MS) method for the simultaneous quantitative detection of the BTX exposure biomarker SPMA, SBMA and o-MBMA in human urine.
Urinary S-phenylmercapturic acid (SPMA) is a biomarker proposed by the American Conference of Governmental Industrial Hygienists (ACGIH) for assessing occupational exposure to benzene (Biological Exposure Index of 25 microg/g creatinine). Urinary S-benzylmercapturic (SBMA) and o-methyl S-benzyl mercapturic acid (o-MBMA) are specific toluene and o-xylene metabolites of  glutathione detoxicant pathways, proposed as reliable biomarkers of exposure. 
To this aim a pre-treatment of the urine with solid phase extraction (SPE) and an evaporation step were necessary to concentrate the mercapturic acids before instrumental analysis. A liquid chromatography separation was carried out with a reversed phase capillary column (Synergi 4u Max-RP) using a binary gradient composed of an acquous solution of formic acid 0.07% v/v and methanol. The mercapturic acids were determinated by negative-ion-mass spectrometry and the data were corrected using isotope-labelled analogs as internal standards. The analytical method follows U.S. Food and Drug Administration guidance and was applied to assess exposure to BTX in a group of 396 traffic wardens. The association between biomarker results and individual factors, such as age, sex and tobacco smoke were also investigated. 
The present work also included improvements in the methods used by modifying various chromatographic parameters and experimental procedures. A partial validation was conducted to evaluate LOD, precision, accuracy, recovery as well as matrix effects.
Higher sensitivity will be possible in future biological monitoring programmes, allowing evaluation of very low level of BTX human exposure.

Keywords: Human biomonitoring, aromatic hydrocarbons, biomarker of exposure, HPLC-MS/MS.
Por detrás do Douro como destino turístico: explorando o envolvimento e as perceções dos residentes
Creators: name: Pato, Lúcia
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Esta investigação analisa o envolvimento e perceções dos residentes em relação ao turismo praticado no Douro. Embora a região seja considerada como detentora de um património turístico de excelência, a investigação revela que o contacto dos residentes com turistas é escasso e o envolvimento dos residentes com ações relativas ao turismo é praticamente inexistente. A população local parece aliás retirar poucos benefícios da atividade turística, não desenvolvendo perceções positivas acerca da mesma. Pelo contrário, a população evidencia que o turismo apenas beneficia um pequeno número de residentes locais. Estes factos sugerem a pouca integração da comunidade no turismo, colocando assim, em evidência, o fosso entre a teoria (que refere a necessidade de integração da comunidade no turismo) e a prática. Com vista ao desenvolvimento turístico de forma mais sustentável, pela importância da integração da comunidade local no turismo, advoga-se que as evidências referidas devem ser tomadas em consideração.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
Sustainable inorganic Binders and Their Applications in Building Engineering: A Green Alternative to Ordinary Portland Cement
Creators: name: Natali Murri, Annalisa <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: ING-IND/22 Scienza e tecnologia dei materiali

description: In the last decades, the building materials and construction industry has been contributing to a great extent to generate a high impact on our environment. As it has been considered one of the key areas in which to operate to significantly reduce our footprint on environment, there has been widespread belief that particular attention now has to be paid and specific measures have to be taken to limit the use of non-renewable resources.The aim of this thesis is therefore to study and evaluate sustainable alternatives to commonly used building materials, mainly based on ordinary Portland Cement, and find a supportable path to reduce CO2 emissions and promote the re-use of waste materials.
More specifically, this research explores different solutions for replacing cementitious binders in distinct application fields, particularly where special and more restricting requirements are needed, such as restoration and conservation of architectural heritage. Emphasis was thus placed on aspects and implications more closely related to the concept of non-invasivity and environmental sustainability. 
A first part of the research was addressed to the study and development of sustainable inorganic matrices, based on lime putty, for the pre-impregnation and on-site binding of continuous carbon fiber fabrics for structural rehabilitation and heritage restoration. Moreover, with the aim to further limit the exploitation of non-renewable resources, the synthesis of chemically activated silico-aluminate materials, as metakaolin, ladle slag or fly ash, was thus successfully achieved. New sustainable binders were hence proposed as novel building materials, suitable to be used as primary component for construction and repair mortars, as bulk materials in high-temperature applications or as matrices for high-toughness fiber reinforced composites.
Poisson process approximation for dependent superposition of point processes
Creators: name: Chen, Louis H. Y.
name: Xia, Aihua
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Although the study of weak convergence of superpositions of point processes to the Poisson process dates back to the work of Grigelionis in 1963, it was only recently that Schuhmacher [Stochastic Process. Appl. 115 (2005) 1819--1837] obtained error bounds for the weak convergence. Schuhmacher considered dependent superposition, truncated the individual point processes to 0--1 point processes and then applied Stein's method to the latter. In this paper, we adopt a different approach to the problem by using Palm theory and Stein's method, thereby expressing the error bounds in terms of the mean measures of the individual point processes, which is not possible with Schuhmacher's approach. We consider locally dependent superposition as a generalization of the locally dependent point process introduced in Chen and Xia [Ann. Probab. 32 (2004) 2545--2569] and apply the main theorem to the superposition of thinned point processes and of renewal processes.
description: Published in at http://dx.doi.org/10.3150/10-BEJ290 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm)
Statistical properties of the Burgers equation with Brownian initial velocity
Creators: name: Valageas, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the one-dimensional Burgers equation in the inviscid limit for Brownian initial velocity (i.e. the initial velocity is a two-sided Brownian motion that starts from the origin x=0). We obtain the one-point distribution of the velocity field in closed analytical form. In the limit where we are far from the origin, we also obtain the two-point and higher-order distributions. We show how they factorize and recover the statistical invariance through translations for the distributions of velocity increments and Lagrangian increments. We also derive the velocity structure functions and we recover the bifractality of the inverse Lagrangian map. Then, for the case where the initial density is uniform, we obtain the distribution of the density field and its $n$-point correlations. In the same limit, we derive the $n-$point distributions of the Lagrangian displacement field and the properties of shocks. We note that both the stable-clustering ansatz and the Press-Schechter mass function, that are widely used in the cosmological context, happen to be exact for this one-dimensional version of the adhesion model.
description: 42 pages, published in J. Stat. Phys
Le reti in Sanità
Network models in Health
Creators: name: Bravi, Francesca <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2012
Subjects: MED/42 Igiene generale e applicata

description: Il presente lavoro di ricerca intende analizzare l’importanza dei modelli organizzativi a reti per rispondere alla sfida della complessità del momento storico, politico, sociologico, economico; in modo particolare in Sanità per rispondere all’esigenza di mettere al centro la persona nel percorso di cura ed ottenere una migliore integrazione delle cure. 
Sebbene i vantaggi delle reti siano bene descritti in letteratura sono ancora pochi gli studi nell’ambito della valutazione.
Il caso di studio ha riguardato la rete oncologica romagnola così come percepita dagli informatori chiave, dagli operatori (medici, infermieri, amministrativi) e dalle persone con esperienza di tumore.
Dall’analisi degli informatori chiave emerge forte che la rete nasce per dare risposte di qualità ai bisogni dei pazienti, mentre per gli operatori quanto sia importante la dimensione delle relazioni umane e avere valori condivisi per raggiungere obiettivi di efficacia e qualità delle cure.
Per quanto riguarda invece la percezione delle persone con esperienza di tumore si rileva quanto sia importante l’appropriatezza della traiettoria di cura nonché l’avere continuità in un percorso, già di per sé difficile, oltre all’importanza dell’umanizzazione dei servizi e della corretta comunicazione medico paziente.
description: The purpose of the present research project is to analyze the importance of the networks organization model to answer to the challenge of the complexity of this historical, political, sociological and economic period; in particular, as far as the health networks are concerned, to respond to the exigency of putting the person in the centre of the care pathway and obtain a better integration of cares. 
Although the advantages of the networks model are well described in the literature , still there are only few studies in the area of evaluation.
The case of study has treated the cancer network in the Romagna area as well as it was perceived from key informants, stakeholders (doctors, nurses, administrative workers) and persons with tumour experience.
The analysis of the key informants brought out strongly the fact that the network was born to give quality answers to the patients needs, while from the analysis of the stakeholders emerged how the human relationships are important and the significance of having shared values to achieve the goals of care efficacy and quality.   
Instead, as far as the perception of the persons with tumour experience is concerned, the importance of the appropriateness of the care trajectory emerged as well as to have a continuity in the pathway , already difficult by itself, in addition to the importance of the services humanization and the correct doctor-to-patient communication.
Uniquely presented finitely generated commutative monoids
Creators: name: Garcia-Sanchez, Pedro A.
name: Ojeda, Ignacio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Commutative Algebra (math.AC)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M14, 20M05

description: A finitely generated commutative monoid is uniquely presented if it has only a minimal presentation. We give necessary and sufficient conditions for finitely generated, combinatorially finite, cancellative, commutative monoids to be uniquely presented. We use the concept of gluing to construct commutative monoids with this property. Finally for some relevant families of numerical semigroups we describe the elements that are uniquely presented.
description: 13 pages, typos corrected, references updated
Accurate Transfer Maps for Realistic Beamline Elements: Part I, Straight Elements
Creators: name: Mitchell, Chad E.
name: Dragt, Alex J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The behavior of orbits in charged-particle beam transport systems, including both linear and circular accelerators as well as final focus sections and spectrometers, can depend sensitively on nonlinear fringe-field and high-order-multipole effects in the various beam-line elements. The inclusion of these effects requires a detailed and realistic model of the interior and fringe fields, including their high spatial derivatives. A collection of surface fitting methods has been developed for extracting this information accurately from 3-dimensional field data on a grid, as provided by various 3-dimensional finite-element field codes. Based on these realistic field models, Lie or other methods may be used to compute accurate design orbits and accurate transfer maps about these orbits. Part I of this work presents a treatment of straight-axis magnetic elements, while Part II will treat bending dipoles with large sagitta. An exactly-soluble but numerically challenging model field is used to provide a rigorous collection of performance benchmarks.
description: Accepted to PRST-AB. Changes: minor figure modifications, reference added, typos corrected.
Restoration of $k_T$ factorization for low $p_T$ hadron hadroproduction
Creators: name: Chang, Chun-peng
name: Li, Hsiang-nan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the applicability of the $k_T$ factorization theorem to low-$p_T$ hadron production in hadron-hadron collision in a simple toy model, which involves only scalar particles and gluons. It has been shown that the $k_T$ factorization for high-$p_T$ hadron hadroproduction is broken by soft gluons in the Glauber region, which are exchanged among a transverse-momentum-dependent (TMD) parton density and other subprocesses of the collision. We explain that the contour of a loop momentum can be deformed away from the Glauber region at low $p_T$, so the above residual infrared divergence is factorized by means of the standard eikonal approximation. The $k_T$ factorization is then restored in the sense that a TMD parton density maintains its universality. Because the resultant Glauber factor is independent of hadron flavors, experimental constraints on its behavior are possible. The $k_T$ factorization can also be restored for the transverse single-spin asymmetry in hadron-hadron collision at low $p_T$ in a similar way, with the residual infrared divergence being factorized into the same Glauber factor.
description: 12 pages, 2 figures, version to appear in EPJC
On the Korteweg-de Vries long-wave approximation of the Gross-Pitaevskii equation I
Creators: name: Bethuel, Fabrice
name: Gravejat, Philippe
name: Saut, Jean-Claude
name: Smets, Didier
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55,35Q53

description: The fact that the Korteweg-de-Vries equation offers a good approximation of long-wave solutions of small amplitude to the one-dimensional Gross-Pitaevskii equation was derived several years ago in the physical literature. In this paper, we provide a rigorous proof of this fact, and compute a precise estimate for the error term. Our proof relies on the integrability of both the equations. In particular, we give a relation between the invariants of the two equations, which, we hope, is of independent interest.
description: Final version accepted for publication in International Mathematics Research Notices with a few minor corrections and added remarks
Computer simulation of Rangifer energetics
Creators: name: Russell, Donald Edmund
Publisher: name: University of British Columbia
Year: 2010

description: With increasing demands on and development of northern mineral resources, a basic understanding of the wildlife productivity is required for the careful management of any species. Barren-ground caribou, Rangifer tarandus (Richarson) , has been an integral part of these northern regions and the culture of the natives for centuries. With the use of simulation modeling much of the diverse data concerning caribou was integrated and evaluated into two model structures. Model BIOEN examined the winter bioenergetics of caribou while model ACTIVE examined the role of biting insects in the summer energetics of caribou. During the construction of these models much data collected on ungulates other than caribou were incorporated when comparative data for caribou were available. Model BIOEN proposes a critical environment for a 100 Kg male caribou under two nutritional regimes. Simulated effects of snow cover on energy balance appear important and deserve more research attention. Two areas, one in the tundra and one in the boreal region, were examined in terms of wintering potential for caribou. In the years simulated, the boreal region proved more favourable in terms of weight loss to the animal. However, it was revealed through sensitivity analyses that small errors in the measurement of digestibility, gross energy content of the forage, food intake rate or grazing intensity have a significant effect on weight projections during the winter. Model ACTIVE incorporated data from Prudhoe Bay, Alaska to examine the role of insects in the summer energy budgets of caribou. Results indicated that insects caused a significant increase in heat production (51.8 Kcal/Kg /day). A predictive regression equation is presented relating total heat production (kcal/Kg/day) to the number of hours of moderate and no insect harassment per day for an adult male or non-lactating female.
Best linear unbiased estimation of the nuclear masses
Creators: name: Bouriquet, Bertrand
name: Argaud, Jean-Philippe
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: This paper presents methods to provide an optimal evaluation of the nuclear masses. The techniques used for this purpose come from data assimilation that allows combining, in an optimal and consistent way, information coming from experiment and from numerical model. Using all the available information, it leads to improve not only masses evaluations, but also to decrease uncertainties. Each newly evaluated mass value is associated with some accuracy that is sensibly reduced with respect to the values given in tables, especially in the case of the less well-known masses. In this paper, we first introduce a useful tool of data assimilation, the Best Linear Unbiased Estimation (BLUE). This BLUE method is applied to nuclear mass tables and some results of improvement are shown.
Sentidos do lugar: olhares do setor turístico oficial do Governo do Estado do Maranhão, Brasil
Creators: name: Rodrigues, Linda Maria
name: Lima, Terezinha De Jesus Campos De
name: Silva, David Leonardo Bouças Da
name: Cortina, Arnaldo
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Partindo dos pressupostos da semiótica discursiva oriundos dos trabalhos de Algirdas Greimas, analisam-se os discursos da propaganda turística oficial do Governo do Maranhão, destacando-se os efeitos de sentido que são produzidos para convencer os seus interlocutores a assumirem o papel de turistas no destino mencionado. Metodologicamente, estuda-se o documento Maranhão (2000) e as estratégias de marketing contidas no discurso publicitário. Sucintamente, concluiu-se que embora as mensagens governamentais se fundamentem no interesse público, as políticas de turismo seguem sem inovação, não engendram um novo discurso ou renovam as suas visões do mundo. Apenas reproduzem mensagens já cristalizadas e lidas em discursos construídos pelo texto verbo-visual inserido na estratégia de individualização, própria do setor turístico. Assim, ao consumir a mensagem, o enunciatário se irmana aquilo que julga ser a sua própria verdade, aquilo que deseja ler para reafirmar a sua verdade e a de toda a sociedade. O lugar só adquire valor turístico quando responde a uma demanda existente e latente, quando se confunde com as aspirações, gostos e mitos de uma época, ou seja, o real pensado por uma representação cultural preexistente, cristalizada. Por fim, a política de turismo estadual relaciona-se com um tema – natureza, única, bela, paradisíaca – uma constante de predicados usuais no turismo contemporâneo.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
Double and single recycled pulsars: an evolutionary puzzle?
Creators: name: Belczynski, K.
name: Lorimer, D. R.
name: Ridley, J. P.
name: Curran, S. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the statistics of isolated recycled pulsars and double neutron star binaries in the Galactic disk. Since recycled pulsars are believed to form through accretion and spinup in close binaries, the isolated objects presumably originate from disrupted progenitors of double neutron stars. There are a comparable number of double neutron star systems compared to isolated recycled pulsars. We find that standard evolutionary models cannot explain this fact, predicting several times the number of isolated recycled pulsars than those in double neutron star systems. We demonstrate, through population synthesis calculations, that the velocity distribution of isolated recycled pulsars is broader than for binary systems. When this is accounted for in a model for radio pulsar survey selection effects, which include the effects of Doppler smearing for the double neutron star binaries, we find that there is a small (25%) bias towards the detection of double neutron star systems. This bias, however, is not significant enough to explain the observational discrepancy if standard (sigma = 265 km/s) neutron star natal kick velocities are invoked in binary population syntheses. Population syntheses in which the 1D Maxwellian velocity dispersion of the natal kick is sigma=170 km/s are consistent with the observations. These conclusions further support earlier findings the neutron stars formed in close interacting binaries receive significantly smaller natal kicks than the velocities of Galactic single pulsars would seem to indicate.
description: 12 pages, MNRAS (accepted)
Existence of solutions for a higher order non-local equation appearing in crack dynamics
Creators: name: Imbert, Cyril
name: Mellet, Antoine
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, we prove the existence of non-negative solutions for a non-local higher order degenerate parabolic equation arising in the modeling of hydraulic fractures. The equation is similar to the well-known thin film equation, but the Laplace operator is replaced by a Dirichlet-to-Neumann operator, corresponding to the square root of the Laplace operator on a bounded domain with Neumann boundary conditions (which can also be defined using the periodic Hilbert transform). In our study, we have to deal with the usual difficulty associated to higher order equations (e.g. lack of maximum principle). However, there are important differences with, for instance, the thin film equation: First, our equation is nonlocal; Also the natural energy estimate is not as good as in the case of the thin film equation, and does not yields, for instance, boundedness and continuity of the solutions (our case is critical in dimension $1$ in that respect).
Sistematização de indicadores da qualidade da experiência: um estudo sobre o Parque Nacional dos Lençóis Maranhenses
Creators: name: Câmara, Rosélis Barbosa
name: Lima, Rozuila Neves
name: Ferreira, Nadjânia Pinto
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O Parque Nacional dos Lençóis Maranhenses (PNLM) é considerado o principal atrativo turístico natural do Estado do Maranhão, no Brasil. Como tal, esta pesquisa se propõe a contribuir com o entendimento das relações que se estabelecem entre o visitante e o PNLM com o objetivo de investigar a qualidade da experiência do visitante. A pesquisa foi desenvolvida em duas etapas: a primeira correspondeu à pesquisa exploratória e descritiva e a segunda correspondeu à pesquisa de campo. Foram realizadas 111 entrevistas e a coleta de dados ocorreu antes das pessoas realizarem a visita ao PNLM e no retorno destas, após a visitação. Os resultados obtidos demonstraram que a qualidade da experiência da visita depende das características pessoais dos visitantes, suas motivações, preferências, expectativas e comportamento. Os indicadores adotados na pesquisa ajudaram a identificar o que eles desejam ou necessitam para ter uma experiência de qualidade em uma área natural protegida. Os resultados obtidos podem contribuir com a administração da unidade no manejo do uso público do local.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
Expansão turística em Pernambuco (BR): a persistência do empresariado local
Creators: name: Brito, Marcilio Lins De Medeiros
name: Barbosa, Jenny Dantas
name: Cohn, Samuel
name: Rodrigues, Alcione Fonseca
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O objetivo deste estudo é analisar a evolução da atividade turística no Nordeste do Brasil, com ênfase na expansão da hotelaria nas décadas de 1980 a 2000. A área física da pesquisa contemplou a cidade do Recife e o litoral sul de Pernambuco, no então denominado Projeto Costa Dourada, depois Programa de Desenvolvimento do Turismo no Nordeste (PRODETUR/NE‑I). As informações foram coletadas através de fontes primárias e secundárias, e por meio de entrevistas. Dentre os resultados, destacam‑se os seguintes: em Pernambuco, a escolha incorreta da área ocasionou o insucesso do Projeto. Em contraposição, o setor hoteleiro da Praia de Porto de Galinhas teve um crescimento significativo. A persistência do esforço dos empresários, a divulgação turística e viabilização de voos charters permitiram transformar aquela praia em um destino internacional.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
On "Schwinger Mechanism for Gluon Pair Production in the Presence of Arbitrary Time Dependent Chromo-Electric Field"
Creators: name: Gavrilov, S. P.
name: Gitman, D. M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently the paper "Schwinger Mechanism for Gluon Pair Production in the Presence of Arbitrary Time Dependent Chromo-Electric Field" by G. C. Nayak was published [Eur. Phys. J. C 59, 715 (2009); arXiv:0708.2430]. Its aim is to obtain an exact expression for the probability of non-perturbative gluon pair production per unit time per unit volume and per unit transverse momentum in an arbitrary time-dependent chromo-electric background field. We believe that the obtained expression is open to question. We demonstrate its inconsistency on some well-known examples. We think that this is a consequence of using the so-called "shift theorem" [arXiv:hep-th/0609192] in deriving the expression for the probability. We make some critical comments on the theorem and its applicability to the problem in question.
description: 4 pages
Governança para o desenvolvimento sustentável de destinos turísticos
Creators: name: Fernandes, Sandra Maria Neiva
name: Eusébio, Maria Celeste De Aguiar
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: A gestão de um destino turístico envolve vários atores locais com interesses individuais, os quais vão beneficiar de ações conjuntas. Actualmente o conceito governança é uma constante na literatura académica, no entanto, apesar da sua relevância, ainda existem muitas dúvidas sobre o seu conceito e também sobre o papel que desempenha no desenvolvimento sustentável de destinos turísticos. Neste sentido, o presente artigo visa fazer uma revisão do estado da arte sobre o papel que a governança poderá ter no desenvolvimento sustentável de destinos turísticos. A metodologia utilizada para fazer esta revisão passou pela pesquisa na base de dados SCOPUS, durante o mês de março de 2013, de artigos publicados sobre a temática governança em turismo e desenvolvimento sustentável. Esta temática tem sido crescentemente abordada desde 2006, tendo-se verificado que os estudos abrangem áreas diversas como a Austrália, a Turquia e Portugal. De referir, que em termos de metodologia a análise qualitativa tem sido a mais utilizada pelos investigadores. Dos resultados obtidos neste estudo constata-se que o desenvolvimento sustentável de destinos turísticos depende da participação dos atores locais, mas, também, da implementação de políticas realistas tendo em atenção os recursos e as características do destino, bem como as necessidades e perceções dos stakeholders. Com base nos resultados obtidos apresentam-se algumas temáticas de investigação a desenvolver no futuro sobre o papel da governança no desenvolvimento sustentável de destinos turísticos.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
Principal bifurcations and symmetries in the emergence of reaction-diffusion-advection patterns on finite domains
Creators: name: Yochelis, Arik
name: Sheintuch, Moshe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Pattern formation mechanisms of a reaction-diffusion-advection system, with one diffusivity, differential advection, and (Robin) boundary conditions of Danckwerts type, are being studied. Pattern selection requires mapping the domains of coexistence and stability of propagating or stationary nonuniform solutions, which for the general case of far from instability onsets, is conducted using spatial dynamics and numerical continuations. The selection is determined by the boundary conditions which either preserve or destroy the translational symmetry of the model. Accordingly, we explain the criterion and the properties of stationary periodic states if the system is bounded and show that propagation of nonlinear waves (including solitary) against the advective flow corresponds to coexisting family that emerges nonlinearly from a distinct oscillatory Hopf instability. Consequently, the resulting pattern selection is qualitatively different from the symmetric finite wavenumber Turing or Hopf instabilities.
Threshold corrections to the MSSM finite-temperature Higgs potential
Creators: name: Dolgopolov, M.
name: Dubinin, M.
name: Rykova, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the minimal supersymmetric standard model (MSSM) the one-loop finite-temperature corrections from the squark-Higgs bosons sector are calculated, the effective two-Higgs-doublet potential is reconstructed and possibilities of the electroweak phase transition in full MSSM ($m_{H^\pm}$, ${\tt tg}β$, $A_{t,b}$, $μ$, $m_Q$, $m_U$, $m_D$) parameter space are studied. At large values of $A_{t,b}$ and $μ$ of around 1 TeV, favored indirectly by LEP2 and Tevatron data, the threshold finite-temperature corrections from triangle and box diagrams with intermediate third generation squarks are very substantial. The four types of bifurcation sets are defined for the two-Higgs-doublet potential. High sensitivity of the low-temperature evolution to the effective two-doublet and the MSSM squark sector parameters is observed, but rather extensive regions of the full MSSM parameter space allow the first-order electroweak phase transition respecting the phenomenological constraints at zero temperature. As a rule, these regions of the MSSM parameter space are in line with the case of a light stop quark.
description: Two plots for the criteria v_c/T_c > 1 (strongly first order phase transition) are added. 32 pages, 22 figures
Patterns And Types Of Cybercrime In Malaysia From 2016 To 2021 Part 2 - Smart Investor Malaysia
Creators: name: Ating, Rashid
Publisher: name: Zenodo
Year: 2023
Subjects: online scam, online fraud, Malaysia

description: In Part 1, we have discussed the definition of cybercrime and commercial crime. We also see the cases recorded for financial and recorded crime in Malaysia from 2016 until 2021, the total losses due to cybercrime and commercial crime. Lastly, we deep dive into the classification of cybercrime and the number of cases happening in Malaysia. For this part 2, we will investigate the arrests and charges against cybercrime cases.
Simple tensor products
Creators: name: Hernandez, David
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let F be the category of finite dimensional representations of an arbitrary quantum affine algebra. We prove that a tensor product $S_1\otimes ... \otimes S_N$ of simple objects of F is simple if and only if for any $i < j$, $S_i\otimes S_j$ is simple.
description: 21 pages ; accepted for publication in Inventiones Mathematicae
Dimensões relevantes do planeamento estratégico territorial (PET) na promoção de turismo sustentável
Creators: name: Silva, Adriana Isabel Teixeira Da
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O planeamento estratégico territorial (PET) é uma atividade básica e essencial para garantir principalmente a qualidade, a sustentabilidade e a competitividade dos destinos turísticos. Este artigo tem como base analisar as dimensões relevantes do PET na promoção de turismo sustentável. Deste modo, serão analisados modelos de planeamento e desenvolvimento sustentável de destinos turísticos, casos atuais de zonas costeiras sustentáveis, bem como as estratégias de planeamento territorial utilizadas por esses casos. Posteriormente serão referidos alguns desequilíbrios estruturais que a falta de planeamento e o desenvolvimento não controlado poderão originar nos destinos. Espera-se que as conclusões obtidas venham a contribuir, de alguma forma, para um planeamento de turismo sustentável mais eficaz.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
Tourism in São Tomé and Principe: the forgotten pearl
Creators: name: Loureiro, Sandra Maria Correia
name: Ferreira, Eduardo Sarmento
Publisher: name: Journal of Tourism & Development
Year: 2014

description: São Tomé and Príncipe is a small African country, which has been facing several vulnerabilities and constraints that have been limiting its development process since its independence. Hence, it is vital to improve alternative ways of development, in order to overcome this disadvantage. This article analyses São Tomé and Príncipe tourism destination competitiveness based on 27 interviews conducted in São Tomé and Príncipe. The conclusions show that the main qualify determinants are: the natural resources, the unique landscape, the cocoa and coffee plantations, the friendly locals and the peace and safety. But, on the other hand, this country reveals a competitive weakness, mainly due to the lack of infrastructures, technical training for hospitality and tourism, coordination among ministries, inter-relationship among public, private and non-profit organizations, as well as external marketing communication.
description: Journal of Tourism & Development, vol. 3 n.º 21/22 (2014)
Acoustic geometry for general relativistic barotropic irrotational fluid flow
Creators: name: Visser, Matt
name: Molina-Paris, Carmen
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: "Acoustic spacetimes", in which techniques of differential geometry are used to investigate sound propagation in moving fluids, have attracted considerable attention over the last few decades. Most of the models currently considered in the literature are based on non-relativistic barotropic irrotational fluids, defined in a flat Newtonian background. The extension, first to special relativistic barotropic fluid flow, and then to general relativistic barotropic fluid flow in an arbitrary background, is less straightforward than it might at first appear. In this article we provide a pedagogical and simple derivation of the general relativistic "acoustic spacetime" in an arbitrary (d+1) dimensional curved-space background.
description: V1: 23 pages, zero figures; V2: now 24 pages, some clarifications, 2 references added. This version accepted for publication in the New Journal of Physics. (Special issue on "Classical and Quantum Analogues for Gravitational Phenomena and Related Effects")
title: Peritoneo y mesenterio: Qué procesos patológicos podemos encontrar y el amplio diagnóstico diferencial que nos plantean.
Creators: name: Romera Romera, Noelia
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Repasar la anatomía peritoneal y los compartimentos que delimita el peritoneo,
identificando dichas estructuras y espacios en las principales técnicas de imagen,
fundamentalmente la TC. Revisar desde un punto de vista práctico los hallazgos...
Participação dos usuários nos processos de adoção de espaços públicos de lazer e turismo urbanos
Creators: name: Silva, Fernanda Costa Da
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: Este trabalho versa sobre as parcerias público-privado que ocorram em espaços abertos urbanos, os quais sirvam concomitantemente ao lazer e ao turismo. Mais especificamente, aborda a necessidade de participação dos usuários para o planejamento urbano desses espaços, em alguma instância, face ao estabelecimento de parcerias do tipo Adoção, verificadas no contexto brasileiro. Compreendendo o processo de planejamento urbano como uma via de diálogo entre sociedade e Estado, é imperativo que este conheça as necessidades dos usuários em relação aos espaços públicos de lazer e turismo urbanos, verificando-se a necessidade de se instaurar as adoções, bem como os espaços a serem contemplados e as formas de aplicações de tais parcerias.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
title: Nuevas terapias, Nuevas patologías.  Hallazgos por RM en patología encefálica secundaria a fármacos.
Creators: name: Pérez López, Fátima
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain
subject: MR

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Los daños neurológicos secundarios a nuevos tratamientos farmacológicos son cada día más frecuentes.
Pueden estar mediados por alteraciones del sistema inmunológico,
neurotoxicidad directa,
actuación en una diana distinta a la prevista o...
Exponential decreasing rate of leaked information in universal random privacy amplification
Creators: name: Hayashi, Masahito
Publisher: name: arXiv
Year: 2009
Subjects: subject: Information Theory (cs.IT)
subject: Cryptography and Security (cs.CR)
subject: Commutative Algebra (math.AC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We derive a new upper bound for Eve's information in secret key generation from a common random number without communication. This bound improves on Bennett et al(1995)'s bound based on the Rényi entropy of order 2 because the bound obtained here uses the Rényi entropy of order $1+s$ for $s \in [0,1]$. This bound is applied to a wire-tap channel. Then, we derive an exponential upper bound for Eve's information. Our exponent is compared with Hayashi(2006)'s exponent. For the additive case, the bound obtained here is better. The result is applied to secret key agreement by public discussion.
description: The organization is a little changed. This version is the same as the published version
O papel estratégico do turismo de negócios em Portugal: uma reflexão a partir do discurso de entidades ligadas ao setor
Creators: name: Rodrigues, Vitor
name: Breda, Zélia
Publisher: name: Revista Turismo & Desenvolvimento
Year: 2014

description: O turismo de negócios assume uma grande relevância no panorama internacional. Com uma representatividade superior a 14% ao nível das chegadas e mais de 23% no que respeita ao total de receitas, este produto demonstra um elevado dinamismo e potencial para a criação de riqueza a nível global, mas também a nível local. Sendo o turismo de negócios apontado como um dos dez produtos turísticos estratégicos em Portugal, a presente investigação propõe‑se analisar o seu desempenho no contexto português, bem como dar a conhecer as suas forças e fraquezas. Para tal, e adotando uma metodologia qualitativa de natureza exploratória, foram inquiridas entidades com responsabilidades ao nível deste produto. Confirmou‑se, desta forma, a relevância estratégica do turismo de negócios em Portugal, nomeadamente em três regiões particulares – Porto e Norte, Lisboa e Algarve –, e foi possível averiguar que, embora detendo uma posição de relevo no panorama mundial, Portugal deve colmatar algumas necessidades primárias, nomeadamente a falta de centros de congressos com maior capacidade ou a inexistência de ligações aéreas com países de extrema preeminência no contexto dos negócios.
description: Revista Turismo & Desenvolvimento, vol. 3 n.º 21/22 (2014)
title: Características Radiológicas e Histopatológicas de las Lesiones en la Mama Contralateral Detectadas Mediante Resonancia Magnética en Pacientes con Diagnóstico Reciente de Cáncer de Mama
Creators: name: Chirife Chaparro, Oscar Sabino
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neoplasia
subject: Outcomes analysis
subject: MR
subject: Breast

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
El objetivo del presente trabajo es evaluar la prevalencia de lesiones benignas y malignas en la mama contralateral detectadas únicamente mediante RM en un grupo de pacientes diagnosticadas recientemente de cáncer de mama y describir los hallazgos...
Can quantum mechanics help distributed computing?
Creators: name: Broadbent, Anne
name: Tapp, Alain
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a brief survey of results where quantum information processing is useful to solve distributed computation tasks. We describe problems that are impossible to solve using classical resources but that become feasible with the help of quantum mechanics. We also give examples where the use of quantum information significantly reduces the need for communication. The main focus of the survey is on communication complexity but we also address other distributed tasks.
description: 14 pages. Contains some new material