Search results for "BSI"
showing 10 items of 468 documents
Ground motion phenomena in Caltanissetta (Italy) investigated by InSAR and geological data integration
2008
Urban areas are frequently affected by ground instabilities of various origins. The location of urban zones affected by ground instability phenomena is crucially important for hazard mitigation policies. Satellite-based Interferometric Synthetic Aperture Radar (InSAR) has demonstrated its remarkable capability to detect and quantify ground and building motion in urban areas, especially since the development of Advanced Differential Interferometric SAR techniques (A-DInSAR). In fact, the high density of re.ectors like buildings and infrastructures in urban areas improves the quality of the InSAR signal, allowing sub-centimetric displacements to be reliably detected. The A-DInSAR techniques a…
Normal vs. strike-slip faulting during rift development in East Africa: The Malawi rift
1992
Kinematic analysis of Neogene and Quaternary faults demonstrates that the direction of extension in the Malawi rift rotated from east-northeast to southeast. Rift development commenced with the formation of half-grabens bounded by northwest-, north-, and northeast-striking normal faults. Owing to slightly oblique rifting, the northwest-striking faults in the northernmost rift segment show a small dextral oblique-slip component, whereas north- and northeast-oriented faults in the central part of the rift display a sinistral oblique-slip component. This first event resulted in block faulting and basin subsidence, which is largely responsible for the present-day basin morphology of Lake Malawi…
Rejuvenation and erosion of the cratonic lithosphere
2008
Cratons are ancient continental nuclei that have resisted significant fragmentation for almost two billion years. Yet, many cratons also experience phases of instability in the form of erosion and rejuvenation of their thick lithospheric mantle keels. Melting governed by redox processes as well as small-scale convection play a key role in triggering such instability. Cratons are the ancient cores of continents, characterized by tectonic inactivity, a thick mantle lithosphere and low heat flow. Although stable as tectonically independent units for at least the past 2 billion years, cratons have experienced episodic rejuvenation events throughout their history. The lower part of the lithosphe…
Fan Deltas and Floodplains in Valencian Coastal Plains
2018
The Valencian coastal plains are formed at the end of two important mountain systems: the Iberian Mountain Range to the north and the Baetic Mountains to the south. As a result of tectonic and neotectonic activity, several graben have been formed at the foot of these reliefs, which have been filled with Plio-Quaternary deposits. In all the coastal plains a depositional sequence is repeated in which the river deposits -fan deltas and alluvial plains- alternate with lagoons/marshes. Basin dimensions, sediment input, tectonics and neotectonics in the study area all determine the size, style and characteristics of fluvial forms, which in turn, influence the characteristics of the coast. Ephemer…
G-CLASS: geosynchronous radar for water cycle science – orbit selection and system design
2019
The mission geosynchronous – continental land atmosphere sensing system (G-CLASS) is designed to study thediurnal water cycle, using geosynchronous radar. Although the water cycle is vital to human society, processes on timescalesless than a day are very poorly observed from space. G-CLASS, using C-band geosynchronous radar, could transform this. Itsscience objectives address intense storms and high resolution weather prediction, and significant diurnal processes such assnow melt and soil moisture change, with societal impacts including agriculture, water resource management, flooding, andlandslides. Secondary objectives relate to ground motion observations for earthquake, volcano, and subs…
The effect of the genetic background on phage infectivity in an encapsulated host
2023
Los bacteriófagos desempeñan un papel clave en la ecología y evolución bacterianas y son potenciales antimicrobianos. Sin embargo, los factores determinantes de la especificidad fago-hospedador siguen siendo poco conocidos. Debido a la prevalencia de bacterias encapsuladas, la cápsula es la primera barrera que encuentran muchos fagos. Esta capa, normalmente de polisacáridos, puede bloquear el acceso de los fagos a los receptores de su pared celular. Para superarla, algunos fagos codifican dominios depolimerasa (Dpos) específicos en sus proteínas de unión a receptores. En este trabajo, hemos cuantificado la predictibilidad de las interacciones fago-bacteria basándonos en el tipo de locus cap…
A land of mystical beauty, living wonder and unrivalled adventure : representation of New Zealand through adventure tourism websites
2009
Matkailu on yksi suurimmista elinkeinoista maailmassa, ja se on kasvanut huomattavalla vauhdilla viimeisten vuosikymmenten aikana. Myös Uudessa-Seelannissa matkailu on yksi maan tärkeimmistä elinkeinoaloista ja työllistäjistä. Uudesta-Seelannista löytyy useita erilaisiin aktiviteetteihin erikoistuneita matkailuyrityksiä. Seikkailumatkailulla on merkittävä rooli matkailussa, esimerkiksi benji-hypystä on tullut yksi maan matkailuikoneista. Tässä tutkimuksessa keskiössä oli seikkailumatkailun rooli Uuden- Seelannin matkailullisen imagon luomisessa. Internet tarjoaa nykypäivänä tärkeän markkinointikanavan, erityisesti matkailuyrityksille. Matkailuesitteiden määrä ja merkitys on vähentynyt huom…
Patrones de evolución de filiales en entornos volátiles
2010
En este trabajo se aplican y se extienden los patrones de evolución de filiales planteados por Birkinshaw y Hood, al estudiar la influencia de los entornos volátiles sobre los procesos de evolución de las filiales de empresas multinacionales. Utilizando una metodología cualitativa a través de 41 estudios de casos de filiales de diversos sectores localizadas en Venezuela, se observó que las mismas siguen procesos conducentes a la mejora, el refuerzo y al declive de sus roles. En los resultados se identifican a la matriz y la propia filial como impulsores de esos procesos, pero se aprecia también al entorno local como determinante de la evolución de las filiales, con lo cual se extienden los …
Erosión costera y cambio ambiental en el humeral de Cabanes-Torreblanca (Castelló). Datos para una gestión sostenible
2014
A progressive increase in salinity and marine influence, related to local subsidence characterize the evolution of the lagoon of Cabanes Torreblanca. Relative sea level rise, caused saltwater intrusion and landward migration of the barrier. This barrier is recessive (60-20 m in the last 50 years) and its current processes show a sedimentary deficit that can lead to rapid and irreversible changes. The information shown by this research can help to achieve a sustainable management.
How hotel websites may discursively adjust to customer preferences using online criticism
2019
This paper explores discursive ways in which hotels may improve their own websites using online criticism to adjust to customer preferences. To this end, a combined method was used, consisting of a netnographic approach (Kozinet, 2010; Mkono, 2011, 2012) together with an interpersonal discourse framework (Hyland, 2008) applied to e-tourism genres (Suau-Jiménez, 2012, 2016). Four hotel websites, together with 200 corresponding negative reviews from TripAdvisor, were diachronically analyzed to identify common topics. Attitudinals were sough, being the core markers of online critiques, as well as boosters, acting as enhancing markers in hotel websites and paralleling criticized topics. Results…