Search results for " Structures"
showing 10 items of 4162 documents
Strutture preesistenti come appoggio per le absidi a Cagliari nel XIV secolo
2015
The paper addresses the issue of the reuse of existing structures as a starting point for the construction of churches, paying particular attention to religious architecture built in Cagliari starting from the 1320s. The study focused in particular on some churches whose apses were built exploiting the presence of earlier defensive structures either abandoned or damaged during the Aragonese siege of Cagliari Castle (1324-26). As suggested by evidence found in the built-up architecture, in the architectural production after the Aragonese conquest of the city it is possible to find traces of a building strategy that involved the reuse of abandoned towers for the construction of apses, convert…
STRUCTURE, ENVELOPE AND TECHNOLOGICAL INNOVATION The reinforced concrete in the construction of very tall buildings
2014
Until the second half of the nineteenth century, ie until the Industrial Revolution, the building structures played static function and also protective function. In the course of time separating the combination goes. The introduction of iron leads to a progressive "innovation" of building structures. The first application of iron in construction dates back to the mid-nineteenth century. They were first made with cast-iron columns and beams in iron and later with particular types of steel. The architecture of the iron is a true regeneration of the way of building, the cities are filled with sophisticated solid structures and slim at the same time, it enhances the transparency of glass, it in…
Factors that influence information technology use during post-implementation : A literature review
2019
Organizations invest in Information Technology (IT) expecting to derive organizational performance benefits from their investments. However, most of the investments do not result in expected benefits because either the implementation fails, or the IT implemented gets misused, underutilized or abandoned during post-implementation. Research suggests that for an organization to derive benefits from its IT investments, users in the organization should actively use the IT for an extended period. Consequently, researchers have investigated factors that can influence IT-use during post-implementation; howbeit, the factors are dispersed across individual publications. Drawing on a review of 68 empi…
A trie-based approach for compacting automata
2004
International audience; We describe a new technique for reducing the number of nodes and symbols in automata based on tries. The technique stems from some results on anti-dictionaries for data compression and does not need to retain the input string, differently from other methods based on compact automata. The net effect is that of obtaining a lighter automaton than the directed acyclic word graph (DAWG) of Blumer et al., as it uses less nodes, still with arcs labeled by single characters.
The Role of Autophagy in Eye Diseases
2021
Autophagy is a catabolic process that ensures homeostasis in the cells of our organism. It plays a crucial role in protecting eye cells against oxidative damage and external stress factors. Ocular pathologies of high incidence, such as age-related macular degeneration, cataracts, glaucoma, and diabetic retinopathy are of multifactorial origin and are associated with genetic, environmental factors, age, and oxidative stress, among others; the latter factor is one of the most influential in ocular diseases, directly affecting the processes of autophagy activity. Alteration of the normal functioning of autophagy processes can interrupt organelle turnover, leading to the accumulation of cellula…
Engagement by lamination of autopoietic concentric interaction systems in games : a study of football and Pokémon GO
2018
The aim of this paper is to rethink games and game design within the theory of self-producing interaction systems. With this research, I seek to identify several dynamics of play and engagement elicited by games that, by extension, can serve as game design parameters. The research is oriented toward an analysis of football (soccer) and Pokémon GO within the context of Niklas Luhmann’s (2002/2012) theoretical framework of autopoiesis (i.e., self-producing interaction systems). The theoretical discussion of play situations in the two games reveals five concentric interaction systems through which games motivate play and engagement. These game dynamics are continuing simultaneous communication…
Regulatory changes in pterin and carotenoid genes underlie balanced color polymorphisms in the wall lizard
2019
Significance Reptiles show an amazing color diversity based on variation in melanins, carotenoids, and pterins. This study reveals genes controlling differences between three color morphs (white, orange, and yellow) in the common wall lizard. Orange pigmentation, due to high levels of orange/red pterins in skin, is caused by genetic changes in the sepiapterin reductase gene. Yellow skin, showing high levels of yellow carotenoids, is controlled by the beta-carotene oxygenase 2 locus. Thus, the color polymorphism in the common wall lizard is associated with changes in two small regions of the genome containing genes with crucial roles in pterin and carotenoid metabolism. These genes are likel…
Utilisation et traitement des données saisies sous EndNote avec des scripts PHP/MySQL
2010
National audience; Cet article présente la façon d’exploiter ou de traiter des données de références bibliographiques saisies ou importées dans EndNote en dehors de leur logiciel natif en utilisant des scripts PHP/MySQL. Deux raisons nous ont amenés à utiliser ce traitement : soit EndNote ne pouvait pas faire des opérations particulières, soit il le pouvait mais de façon trop fastidieuse. Dans ce but nous exposerons dans un premier temps la façon dont les données sont organisées par EndNote, puis la méthode pour les exploiter et enfin nous donnerons quelques exemples d’utilisation.
Lisämateriaali julkaisuun: Genetic colour variation visible for predators and conspecifics is concealed from humans in a polymorphic moth
2022
The definition of colour polymorphism is intuitive: genetic variants express discretely-coloured phenotypes. This classification is however elusive as humans form subjective categories or ignore differences that cannot be seen by human eyes. We demonstrate an example of a ‘cryptic morph’ in a polymorphic wood tiger moth (Arctia plantaginis), a phenomenon that may be common among well-studied species. We used pedigree data from nearly 20000 individuals to infer the inheritance of hindwing colouration. The evidence supports a single Mendelian locus with two alleles in males: WW and Wy produce the white and yy the yellow hindwing colour. The inheritance could not be resolved in females as thei…
The Advances and Challenges of Liposome-Assisted Drug Release in the Presence of Serum Albumin Molecules: The Influence of Surrounding pH
2022
The aim of this study is to prepare a liposomal delivery system for 5-methyl-12 (H)-quino[3,4-b]-1,4-benzothiazine chloride (5-MBT) and study the in vitro release characteristics. The release of 5-MBT from a liposomal complex with human serum albumin (HSA) [LDPPC/5-MBT]:HSA was examined using the spectrophotometric method and differential scanning calorimetry (DSC). Electronic paramagnetic resonance was used to assess the influence of the pH of the environment on the conformation of phospholipids, the latter determining the degree of release of the encapsulated compound. The applied mathematical models made it possible to determine the necessary analytical parameters to facilitate the proce…