IN "POLPO ... SITION" E ALTRI BREVI RACCONTI

Assalito dalla felicità corsi al mare, guardai l’acqua e fui preso da una forza, non mia, non umana che mi trascinò in acqua. Lì venni rapito da fantastiche sensazioni, l’adrenalina salì a mille, vidi un enorme creatura che suscitò in me delle emozioni mai provate prima, si era avvicinata talmente tanto che stava per toccarmi e, appena lo fece, il mio corpo si illuminò magicamente, le mie mani iniziarono pian piano ad assottigliarsi, il mio petto diventava sempre più piccolo e tondo e da lì a poco, ero diventato un polpo

Simulación de huayco e inundación y propuesta de solución en el anexo de pescadores, Distrito de Ocoña, Provincia de Camana, Departamento de Arequipa

TesisEl objetivo de esta investigación es la simulación bidimensional de la avenida de lodo que afecta a la carretera Panamericana Sur km 756 + 400 en el anexo de Pescadores, ubicado en Arequipa, Perú, cuyo principal problema es la paralización del tránsito vehicular, afectando también a los habitantes de la zona. Para ello, se realizó los estudios de topografía, hidrología y reología del área y haciendo uso del modelo numérico FLO-2D, se procedió a modelar y calibrar con el evento ocurrido el 12 de febrero de 2012; con el fin de obtener los mapas de peligro de 25,100 y 200 años para delimitar las zonas de peligro en el anexo de Pescadores. Finalmente, para controlar la avenida de lodo, la solución óptima propuesta es la construcción de un puente y el encauzamiento del flujo con diques de enrocado. Trayendo beneficios a la región de Arequipa, al evitar pérdidas económicas por el tránsito paralizado, salvaguardando la vida y salud de los habitantes, protegiendo la infraestructura del anexo de Pescadores. Nuestra investigación es un esfuerzo para contribuir al estudio y la mitigación de las avenidas de lodo, de acuerdo con los objetivos del Marco de Sendai

Effect of Key Parameters on the Photocatalytic Oxidation of Toluene at Low Concentrations in Air under 254 + 185 nm UV Irradiation

The effect of key experimental parameters on the removal of toluene under 254 + 185 nm irradiation was investigated using a benchtop photocatalytic flow reactor. Toluenewas introduced at low concentrations between 10 and 500 ppbv, typical of indoorenvironments, and reacted on TiO2-coated Raschig rings. Two different TiO2-coated rings were prepared: in one case, by dip-coating using a P25 aqueous suspension and, on the other, using an organic/inorganic sol-gel method that produced thin films of mesoporous anatase. Flow rates in the photoreactor varied between 4 L min-1 and 125 mL min-1, leading to residence times in the range 100 ms< tau< 2 s. For these conditions, toluene removal efficiencies were between 30 and 90percent, indicating that the system did not achieve total conversion in any case. For each air flow rate, the conversion oftoluene was significantly higher when the reactor length was 10 cm, as compared with 5 cm; however, only marginal increases in conversions were achieved in the two reactor lengths at equal residence time and different concentration of toluene, suggesting that that the reactor is effectively behaving as an ideal reactor and that the reaction is first-order in the concentration of toluene. Experiments were carried out between 0 and 66percent relative humidity (RH), the fastest reaction rate being observed at moderately low humidity conditions (10percent RH), with respect to both dry air and higher humidity levels. Formaldehyde was formed as a partial oxidation byproduct at low and at high residence times (240 and 960 ms), although higher formaldehyde molar yields (up to 20percent) were observed at low tau (240 ms) and moderate humidity conditions (10 and 33percent), suggesting that both tau and RH can be optimized toreduce the formation of harmful intermediates. Toluene removal efficiency increased with the TiO2 thickness (i.e., mass) until a maximum value of 500 nm, beyond which the removal efficiency decreased. This should be attributed to limitations on the rates of toluene decomposition imposed by radiation transport through the film and/or internal diffusion resistances, which can take place within the porous photocatalytic films

Incidental Finding of Idiopathic Unilateral Adrenal Calcification in an 18-Month-Old Child: Case Report and Review of the Literature

The presence of calcified lesions in the adrenal gland requires a careful endocrine, microbiological and radiological evaluation combined with detailed clinical history to confirm its non-evolving nature and avoid unnecessary surgery. We report an 18-month-old male child hospitalized with an incidentally discovered calcification in his right adrenal gland. All biochemical data as well as liver, renal and adrenal function tests were normal. Abdominal computed tomography scan showed that the right adrenal gland was completely occupied by a large calcification, which was put in relationship with an undetected adrenal distress during the neonatal period, as macrosomy and clavicle fracture of the newborn could let us suggest. Our report describes the diagnostic approach to disclose the nature of a suprarenal mass, which is particularly problematic when this is found incidentally. In addition, an extensive review of the medical literature dealing with non-traumatic adrenal calcifications and haemorrhages in children has been carried out

Paisaje Cultural Urbano e Identitad Territorial

Linguaggio contemporaneo e preesistenze: dialogo in un mondo globalizzato Il tema del rapporto con l’antico trova una giusta dimensione operativa quando, superando la sfera delle ideologie e quella delle opposte ragioni della memoria e dello sviluppo, indirizza positivamente l’azione progettuale ora per differenza ora per empatia, a seconda delle circostanze, ma crea sempre una forte tensione tra le ragioni dell’esistente e le necessità del nuovo. Intervenire nell’antico e per l’antico significa, pertanto, riprogettare il nostro modo di relazionarci con il passato, rinegoziandone identità e valori alla luce del nostro presente. Da questa angolazione il patrimonio non è solo lo spazio della memoria o quello della storia, ma diviene lo spazio del desiderio che trae alimento dal mito dell’araba fenice: esso, come principio evolutivo, rappresenta l’inizio di un incessante ricominciamento e l'occasione per una mediazione tra globale e locale