Search results for "TECNOLOGIA"
showing 10 items of 1895 documents
Transcriptional Response of Saccharomyces cerevisiae to Different Nitrogen Concentrations during Alcoholic Fermentation▿ †
2007
Gene expression profiles of a wine strain of Saccharomyces cerevisiae PYCC4072 were monitored during alcoholic fermentations with three different nitrogen supplies: (i) control fermentation (with enough nitrogen to complete sugar fermentation), (ii) nitrogen-limiting fermentation, and (iii) the addition of nitrogen to the nitrogen-limiting fermentation (refed fermentation). Approximately 70% of the yeast transcriptome was altered in at least one of the fermentation stages studied, revealing the continuous adjustment of yeast cells to stressful conditions. Nitrogen concentration had a decisive effect on gene expression during fermentation. The largest changes in transcription profiles were o…
Modulação gênica em embriões humanos
2018
O recente implemento de moderna tecnologia -CRISPR/Cas9- possibilitou o avanço inquestionável da edição gênica em linhagem germinativa humana, seja por meio da manipulação de células precursoras de gametas, células tronco pluripotentes, gametas ou, até mesmo, de embriões. Mesmo levando em conta os benefícios terapêuticos preventivos demonstrados nas pesquisas básicas e préclínicas em embriões humanos, tais investigações encontram barreiras de aceitação em todo o mundo. Tal situação exige mudança de atitude no sentido de incrementar o debate em torno da aplicabilidade dessas novas tecnologias. Assim, a adequação das atuais regulamentações faz-se necessária e deve incluir a superação dos desa…
Family-teachers relationships through digital tools: analyses and proposals
2016
La investigación exploratoria analiza las relaciones digitales entre docentes y familias en diez centros educativos de las provincias de Barcelona y Girona. La investigación recoge y analiza las diferentes herramientas digitales a través del análisis de documentos y de entrevistas semiestructuradas. El estudio muestra que la introducción de las TIC no ha conllevado cambios sustanciales ni en el qué ni en el cómo de las prácticas y las relaciones entre familias y docentes. Finalmente, partiendo de dicho análisis, se plantean pistas y propuestas de mejora en las actuales relaciones digitales entre docentes y familias.
El cultivo del olivo y la producción oleícola entre el Neolítico y el Imperio romano, el caso particular de la península ibérica
2015
La cultura del olivo y la producción de aceite, del Neolítico al Imperio romano: el caso particular de la península Ibérica. Mediante este título son puestos de manifiesto los dos ejes principales de esta investigación. El primero retoma la cuestión de la domesticación de la planta, la cual habría tenido lugar en las llamadas “zonas refugio”, espacios climatológicamente protegidos de la cuenca mediterránea. El segundo, trata de manera particular la aparición de las diferentes tecnologías de producción oleícola, su evolución, así como las herencias observadas entre los diferentes pueblos del Mediterráneo, entre el Neolítico y el Imperio romano. Ambas problemáticas son analizadas desde el cas…
Stress-strain analysis of specimens subjected to tensile loading during moisture uptake
2015
Abstract: A robust and efficient numerical method for the calculation of the internal stress state that develops within structures subjected to mechanical and steady state or transient hygroscopic loading conditions, has been developed. The method encompasses a layer by layer approach whereby the structure is discretised into plies with different material properties corresponding to the different ply moisture content. The proposed method has been validated against finite element solutions, and results from its application on a fully characterised EDT (technical name) polymer binder are presented. The impact of the moisture induced viscoelastic behaviour on the structural response of the cas…
Synthesis, Structural Analysis, Fiber Formation and Preliminary Anticancer Characterization of the Organotin Polyether from Dibutyltin Dichloride and…
2012
The organotin polyether derived from reaction of dibutyltin dichloride and 2,5-dimethyl-3-hexyne-2,5-diol was rapidly synthesized employing classical interfacial polymerization in 65% yield and a chain length of 360 units. IR results are consistent with the polyether structure. Bands characteristic of the formation of the Sn-O are present and bands characteristic of the Sn-Cl are absent. F MALDI MS results in the low mass range gives ion fragment clusters to five units. Isotopic abundance matches for tin are consistent with its presence in these ion fragment clusters. In the high mass range ion fragment clusters to greater than 300 units are found. The products offer outstanding inhibition …
AGATHON
2012
Place where thoughts, riots, artistic influences converge, by definition, the Mediterranean is an area of contamination, a fresco of a thousand shades and colours. The import of many items from all over the world has made sure that the Mediterranean, in the historical process, to evolve in its current size in which the different components are gradually become constituent parts of the life of its inhabitants in various areas, by the landscape, architecture, art, cuisine. Sovereign place where awareness is gained that the differences represent wealth, was, is and will be a place of encounters and conflicts, melting and separation of harmonious coexistence and continuing mistrust. While it is…
TECHNOLOGIES FOR THE BUILT HERITAGE ENHANCEMENT AND TOOLS FOR THE LOCAL ECONOMIC DEVELOPMENT
2012
Cultural and environmental goods are a “structured value capital” with its own distinctive elements of identity and authenticity. The need to give centrality to these territorial resources means to improve their keeping and protection processes and meantime to increase their usage and their sustainable development. So from the starting point of the sentence that the cultural heritage can determine positive falls on local development processes and that resources must be managed, organized and communicated following integrated logics, we need to focus those theoretical assumptions and those operative methodologies useful to start a clever circle between cultural heritage and economic developm…
INTRODUZIONE
2011
La conoscenza è fattore determinante nel raggiungimento di fini pratici e atto imprescindibile per l’evoluzione umana e per i processi innovativi che si innescano a causa della nostra innata capacità di “non essere mai sazi” di sapere. Il poeta Orazio, nelle sue Epistole (1, 2), esortava l’amico Massimo Lollio a «sápere aude!» («abbi il coraggio di sapere, di conoscere!»), offrendogli una serie di consigli, tutti improntati alla filosofia dell’aurea mediocritas1; tra questi è anche l’invito a “risolversi a essere saggio”, dedicandosi agli studi e alle occupazioni oneste (espressione diventata ulteriormente famosa grazie al filosofo tedesco Immanuel Kant, che ne fece il motto dell’Illuminism…
ARCHITECTURE AND INNOVATION FOR HERITAGE
2011
ARCHITECTURE AND INNOVATION FOR HERITAGE a cura di Giuseppe De Giovanni Emanuele Walter Angelico. Il Patrimonio Culturale o Heritage non è di facile definizione, perché racchiude in sé interpretazioni varie, articolate e dalle molteplici accezioni, in quanto riferibile a tutto ciò che riguarda in prima istanza il passato, inteso sia in senso concreto e materiale sia in senso astratto e immateriale, ma anche le relazioni e i collegamenti che appartengono al presente. Oggi, sotto questo termine è possibile riconoscere l’insieme delle tradizioni cosiddette immateriali: leggende, miti, usi e costumi, canoni, proverbi, feste popolari, valori etici e morali, prodotti e marchi (brand) propri di un…