139,527 research outputs found
Luigi Zangheri, Brunella Lorenzi, Nausikaa Mandana Rahmati, Il giardino islamico, Firenze, Olschki, 2006, 484 págs
No full textResumen: Este libro se escribió con el propósito, declarado por Luigi Zangheri,
de servir como apoyatura didáctica para los alumnos de la Universitá
degli studi di Firenze. La primera parte de esta obra, dividida en tres
grandes bloques, la desarrolla el mismo Zangheri quien a lo largo de
ocho capítulos descubre variados aspectos de los jardines islámicos.
Este recorrido lo hace a través de su visión personal y la de distintos
viajeros y personajes europeos, cuyas opiniones conocemos a través de
fragmentos documentales. Brunella Lorenzi y Nausikaa M. Rahmati,
dos colegas de la Universidad, elaboran la segunda y tercera parte, dedicadas
a los parques y jardines de la Sicilia islámica y normanda y al
jardín persa, respectivamente.
Luego de un breve estado de la cuestión, donde se detalla la bibliografía
editada sobre el tema en las últimas décadas, Zangheri comienza
su estudio analizando las distintas realidades que englobó desde sus
comienzos la palabra jardín, puesto que definió alternativamente un
lugar de producción, un lugar de placer, un símbolo de poder. Entre las
funciones que se le han asignado se hallan las de lugar de ocio, de fiesta,
de reposo, de manifestación de poder económico y político; unas veces
destinados al uso privado y otras abiertos al público; con mayor o menor
variedad de formas y tipos de cultivo, etc. Si a estas interpretaciones se
las encuadra además en el contexto de la civilización islámica, el concepto
adquiere una nueva riqueza, ya que esa cultura musulmana que
integra distintos pueblos, tradiciones, modos de vida y de pensamiento,
aportará nuevos enfoques del jardín. Según el autor, la interpretación de
los jardines islámicos se ha hecho, generalmente, a partir de una lectura
occidental, mientras que en esta obra se pretende hacerlo desde una
visión menos europea y más oriental
Decellularized skin pretreatment by monophosphoryl lipid A and lactobacillus casei supernatant accelerate skin recellularization
No full textBackground: Bioscaffolds and cells are two main components in the regeneration of damaged tissues via cell therapy. Umbilical cord stem cells are among the most well-known cell types for this purpose. The main objective of the present study was to evaluate the effect of the pretreatment of the foreskin acellular matrix (FAM) by monophosphoryl lipid A (MPLA) and Lactobacillus casei supernatant (LCS) on the attraction of human umbilical cord mesenchymal stem cells (hucMSC). Methods and results: The expression of certain cell migration genes was studied using qRT-PCR. In addition to cell migration, transdifferentiation of these cells to the epidermal-like cells was evaluated via immunohistochemistry (IHC) and immunocytochemistry (ICC) of cytokeratin 19 (CK19). The hucMSC showed more tissue tropism in the presence of MPLA and LCS pretreated FAM compared to the untreated control group. We confirmed this result by scanning electron microscopy (SEM) analysis, glycosaminoglycan (GAG), collagen, and DNA content. Furthermore, IHC and ICC data demonstrated that both treatments increase the protein expression level of CK19. Conclusion: Pretreatment of acellular bioscaffolds by MPLA or LCS can increase the migration rate of cells and also transdifferentiation of hucMSC to epidermal-like cells without growth factors. This strategy suggests a new approach in regenerative medicine
Spatially-localized time dependent solutions including turbulence and their interactions in 2D Kolmogorov flow
No full textIn 2D Kolmogorov flow in small aspect ratio domains, spatially-localized solutions such as kink, traveling or time-dependent kink-antikink pars coexist. However, the conservation of the flow rate in the y direction strongly restrict combination of localized solutions and their positioning. We find that by adding a homogeneous flow U y their positioning is controlled and each of localized solutions including a spatially-localized chaos is isolated. Numerical results suggest that these isolated solutions can be elements constructing a whole flow
Characteristics of overlap region in high-Reynolds number turbulent channel flow
No full textDirect numerical simulation of the fully developed turbulent channel flows have been carried out at the Reynolds number based on the friction velocity and the channel half width, 2000, 4000 and 8000. A hybrid 10th order accurate finite difference scheme in the stream and spanwise directions, and a second-order scheme in the wall-normal direction is adapted as the spatial discretization method. We observed the plateau profiles in the indicator function corresponded to the von Karman constant. Furthermore, second peak of streamwise pre-multiplied spectra were appeared in the same wall normal height, 300 < y+ < 600, in case of Re = 4000. Nevertheless, the effects of the lager than the channel half height scale on the streamwise turbulent intensity are fixed contributions without dependence on Reynolds number. These results suggested that the new streamwise vortexes are formed between buffer layer and outer layer with increasing of Reynolds number
An Approach for Enterprise Architecture and Business Model Alignment
No full textThis research aims at bridging business model and enterprise architecture in a practical and analytical way. Exploring business model and enterprise architecture limitations and the way these limitations affect the organization showed that by bridging them an effective communication between IT and business people could be gained, responsibilities could be tracked, a road map for business model implementation could be created, and viability and feasibility of business models could be increased.Engineering and Policy AnalysisICTTechnology, Policy and Managemen
La 'circunstancia' de 'Herederos y Pretendientes
No full textIn June 2010, the Ortega y Gasset Foundation hosted a Conference about the “Spanish Philosophical Transition” in order to debate the book of Francisco Vázquez, La filosofía española. Herederos y Pretendientes. Una lectura sociológica (1963-1990), recently published. This paper is the author’s response to criticism raised in the Conference and to published reviews received by this book. First, the author summarized the argument of Herederos y pretendientes. Secondly he responds and takes into account the most important objections against the book’s hypothesis and methodology. Finally the author evaluates the favorable judgments received by the book and suggests the limits of the historian’s task.Fundación Ortega y Gasset-Marañó
La seguridad en las investigaciones policiales y judiciales en la legislación iraní se basa en la nueva criminología de los derechos.
No full textThe new theory of the criminology of rights is a type of politico-economic orientation that has become criminological. This idea emerged as a result of the widespread financial crisis in the West, based on neoliberal economic policies of the 1970s and welcomed by right-wing politicians, where crime and censorship are replaced by an interactive and participatory policy, and participation is more likely than of government in the privacy of citizens is decisively occupied with the overwhelming elements of social order; that with the aim of guaranteeing life, finances and dignity of citizens and ensuring public institutions, seeing the prevention of crime only through a rigorous criminal procedure.La nueva teoría de la criminología de los derechos es un tipo de orientación político-económica que se ha vuelto criminológica. Esta idea surgió a raíz de la crisis financiera generalizada en Occidente, basada en políticas económicas neoliberales de los años 1970 y acogida por políticos de derecha, donde la criminalidad y la censura son reemplazadas por una política interactiva y participativa, siendo más probable que la participación del gobierno en la privacidad de los ciudadanos se ocupe de manera decisiva de los elementos abrumadores del orden social; eso con el objetivo de garantizar la vida, las finanzas y la dignidad de los ciudadanos y asegurar las instituciones públicas, viendo la prevención de la delincuencia solo a través de un procedimiento penal riguroso. 
Innovative sulfation strategy for efficient recovery of rare earth elements from spent fluorescent lamp powder
No full textThe recovery of rare earth elements (REEs) from spent fluorescent lamp phosphors is essential for resource sustainability and circular hydrometallurgy. While yttrium (Y) and europium (Eu) can be recovered through simple acid leaching, extracting cerium (Ce), lanthanum (La), and terbium (Tb) from green phosphors is challenging due to their resistance to dissolution. This study presents a novel sulfation-based process at relatively low temperatures to selectively recover REEs, particularly Tb, while minimizing energy consumption and environmental impact by preventing sulfuric acid and mercury evaporation. Initially, sulfuric acid leaching selectively recovered most of Y and Eu, leaving other REEs in the solid residue. These elements were then precipitated as a nearly pure REE oxalate mixture (>99 % purity). The effects of sulfation time, temperature, and acid-to-powder weight ratio were optimized using Response Surface Methodology (RSM). Sulfation at 150 °C for 5 h enabled the recovery of nearly 100 % Ce and Gd, 98.01 % La, and 98.15 % Tb through water leaching. The mixed oxalate precipitate, enriched in La, Ce, and Tb, exhibited >98 % purity. SEM analysis revealed the formation of flower-like mixed REE oxides after calcination. This process achieved high recovery efficiencies of 99.98 % Y, 100 % Eu, 99.92 % Ce, 97.22 % La, 97.68 % Tb, and 99.97 % Gd. By using only sulfuric and oxalic acid, it aligns with sustainable hydrometallurgy, reducing chemical diversity and enabling acid regeneration. This study provides an efficient, environmentally friendly approach for REE recovery from phosphor waste
Author self-citation in orthodontics is associated with author origin and gender.
No full textBACKGROUND
The aims of this bibliometric study were to determine author self-citation trends in high-impact orthodontic literature and to investigate possible association between self-citation and publication characteristics.
METHODS
Six orthodontic journals with the highest impact factor as ranked by 2017 Journal Citation Reports were screened for a full publication year (2018) for original research articles, reviews, and case reports. Eligible articles were scrutinized for article and author characteristics and citation metrics. Univariable and multivariable negative binomial regression was used to examine associations between self-citation incidence and publication characteristics.
RESULTS
Medians for author self-citation rate of the most self-citing authors and self-citations were 3.03% (range 0-50) and 1 (range 0-19), respectively. In the univariable analysis, there was no association between self-citation counts and study type (P = 0.41), article topic (P = 0.61), number of authors (P = 0.62), and rank of authors (P = 0.56). Author origin (P = 0.001), gender (P = 0.001) and journal (P = 0.05) were associated with self-citation counts and in the multivariable analysis only origin and gender remained strong self-citation predictors. Asian authors and females self-cited significantly less often than all other regions and male authors.
CONCLUSIONS
Authors in orthodontics do not self-cite at a frequency that suggests potential citation manipulation. Author origin and gender were the only variables associated with citations counts. More bibliometric research is necessary to draw solid conclusions about author self-citation trends in orthodontic literature
Overview of the Author Profiling Task at PAN 2013
No full text[EN] This overview presents the framework and results for the Author Profiling
task at PAN 2013. We describe in detail the corpus and its characteristics,
and the evaluation framework we used to measure the participants performance to
solve the problem of identifying age and gender from anonymous texts. Finally,
the approaches of the 21 participants and their results are described.The author profiling task @PAN-2013 was an activity of the WIQ-EI IRSES project (Grant No. 269180) within the FP 7 Marie Curie People Framework of the European Commission. We want to thank the Forensic Lab of the Universitat Pompeu Fabra Barcelona for sponsoring the award for the winner team. The work of the first author was partially funded by Autoritas Consulting SA and by Ministerio de Economía y Competitividad de España under grant ECOPORTUNITY IPT-2012-1220-430000. The work of the second author was in the framework the DIANA-APPLICATIONS-Finding Hidden Knowledge in Texts: Applications (TIN2012-38603-C02-01) project, and the VLC/CAMPUS Microcluster on Multimodal Interaction in Intelligent Systems. The work of fifth author was funded in part by the Swiss National Science Foundation (SNF) project "Mining Conversational Content for Topic Modelling and Author Identification (ChatMiner)" under grant number 200021_130208.Rangel, F.; Rosso, P.; Koppel, M.; Stamatatos, E.; Inches, G. (2013). Overview of the Author Profiling Task at PAN 2013. CLEF Conference on Multilingual and Multimodal Information Access Evaluation. 352-365. https://riunet.upv.es/handle/10251/46636S35236
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