Search results for "Dam"
showing 10 items of 3828 documents
Oligonucleotides-decorated-poly(N-vinyl pyrrolidone) nanogels for gene delivery
2013
Pulsed electron-beam irradiation of a semi-dilute poly(N-vinyl pyrrolidone) (PVP) aqueous solution in the presence of acrylic acid has led to a carboxyl functionalized nanogel system. Nanoparticles hydrodynamic size and surface charge density, in water and as a function of pH, were investigated by dynamic light scattering and laser doppler velocimetry, respectively. Nanogels (NGs) were proved not to be cytotoxic at the cellular level. Indeed, they rapidly bypass the cellular membrane to accumulate in specific cell portions of the cytoplasm, in the perinuclear area. The availability of pendant carboxyl groups on the crosslinked PVP NGs core prompted us to attempt their decoration with a sing…
Visual fields in a chloroquine treatment
2014
Purpose: In this study, we describe contrast sensitivity losses in the visual field of a patient affected by chloroquine toxicity, measured with stimuli favoring different visual mechanisms. We have compared these results with those of other, usual clinical tests. Methods: The vision of a patient who underwent ten years of chloroquine treatment was analyzed by a battery of clinical tests: visual acuity (VA), Amsler’s grid, Farnsworth–Munsell 100-hue test, spectral domain optical coherence tomography, multifocal electroretinogram (ERG), white-on-white and red-on-white Humphrey perimetries, chromatic and achromatic contrast sensitivity perimetry tests, and fluorescein angiography. Measurement…
Tectonothermal Evolution of the Broadly Rifted Zone, Ethiopian Rift
2019
The Broadly Rifted Zone (BRZ) of southern Ethiopia is a long-lived and structurally complex segment of the East African Rift System. However, due to poor surface exposure of early synrift strata and a dearth of subsurface data, the evolution of the BRZ remains poorly understood. We present new apatite (U-Th-Sm)/He and augmented apatite fission track low-temperature thermochronology data from the Beto and Galana basin boundary fault systems to constrain the tectonothermal evolution of the western and eastern BRZ, respectively. Time-temperature reconstructions suggest that East African Rift System-related extension began concurrently across the BRZ in the early Miocene (20–17 Ma), at least 6 …
The influence of thermal extremes on coral reef fish behaviour in the Persian Gulf
2019
AbstractDespite increasing environmental variability within marine ecosystems, little is known about how coral reef fish species will cope with future climate scenarios. The Arabian/Persian Gulf is an extreme environment, providing an opportunity to study fish behaviour on reefs with seasonal temperature ranges which include both values above the mortality threshold of Indo-Pacific reef fish, and values below the optimum temperature for growth. Summer temperatures in the Gulf are comparable to those predicted for the tropical ocean by 2090-2099. Using field observations in winter, spring and summer, and laboratory experiments, we examined the foraging activity, distance from refugia and res…
One Rational Strategy for Restoration of Coral Reefs: Application of Molecular Biological Tools to Select Sites for Rehabilitation by Asexual Recruits
2000
Experiments for reef rehabilitation were performed at two selected sites near Hurghada (Red Sea, Egypt) the reef close to the Marine Biological Station (with a high sedimentation rate from landfilling) and El-Fanadir Reef (a clear water site). Since only little is known about the influence of the physical environmental conditions, novel molecular biological approaches have been introduced to assess the metabolic status of corals. In order to avoid possible interference with symbionts the molecular studies have been performed with the octocoral Dendronephthya klunzingeri; this species does not contain zooxanthellae. The metabolic enzymes fructose-1,6-bisphosphatase and the succinat-dehydroge…
Geomechanical Behavior of Shales
2016
The paper presents the recent advances and their relevance in the study of the geomechanical behavior of shales considering both experimental and modelling aspects. Shales are involved in several energy-related engineering applications where complex multiphysical conditions are encountered. Partial saturation, non-isothermal conditions, plasticity and damage mechanisms may have a fundamental impact on their geomechanical behavior. The relevance of these aspects for shales is presented in the paper both from advance experimental and modeling point of view.
Giudice amministrativo e interessi religiosi collettivi: istanze confessionali, conflitti e soluzioni giurisprudenziali
2013
La globalizzazione, l’immigrazione, il post-secolarismo, la sovranità westphaliana in trasformazione, la crisi del Welfare, e della democrazia statale, e altre dinamiche proprie di questa società “post-legalitaria”, hanno mutato e mutano, in Italia come in tutto l’Occidente, assetti consolidati sul piano verticale delle decisioni politiche e della produzione delle regole, e su quello sociale/orizzontale dei modelli culturali, etici e religiosi, sempre più differenziati e sfaccettati. Dinamiche che già in generale rivalutano il momento giurisprudenziale del diritto come “source délicieuse” chiamata a supplire alle difficoltà del Legislatore; e che nel particolare dell’esperienza italiana del…
PROFILI PROCESSUALISTICI DELL'ESPERIENZA GIURIDICA EUROPEA.DALL'ESPERIENZA ROMANA ALL'ESPERIENZA MODERNA
2003
Il lavoro, trae il suo spunto iniziale dall’intento di discutere interdisciplinariamente una problematica di notevole interesse, sia per i profili politico-sociali che tecnico-giuridici: l’esigenza di creare, all’interno dello stesso sistema processuale, riti differenziati in relazione alla repressione di differenti fattispecie criminose, analizzando, in particolare, il valore centrale assunto in tal senso dalla ‘prova’. A tal proposito il pensiero degli studiosi, non solo romanisti, corre immediatamente all’esperienza delle Quaestiones perpetuae, che rappresentano, forse, la massima espressione, storicamente realizzata, del principio della netta differenziazione dei riti processuali in rel…
Ledājkušanas ūdeņu baseini Ziemeļlatvijas un Vidusgaujas zemienēs Vēlā Vislas leduslaikmeta beigu posmā
2014
Disertācijā aplūkoti ledājkušanas ūdeņu baseini, kuri eksistēja Ziemeļvidzemes un Vidusgaujas zemienēs vēlā Vislas leduslaikmeta deglaciācijas laikā. Pirmo reizi Latvijā iekšzemes ledājkušanas baseinu rekonstruēšanā ir ņemta vērā Zemes virsmas šķietamā pacelšanās, kā arī pašas rekonstrukcijas ir veiktas ĢIS vidē ar modelēšanas rīku palīdzību. Darbā ir veiktas Vidusgaujas, Smiltenes un Strenču ledāja sprostezeru rekonstrukcijas ūdens līmeņu kritumam no 125 līdz 46 m v.j.l., kuras parāda minēto sprostezeru izplatību, dziļumu, ūdens pieteces un noteces vietas, attīstību laikā un saistību ar citām tālaika ūdenstilpēm. Baseinus veidojošo un tiem sekojošo eolo procesu nogulumu datējumi ar OSL met…
La ética en el otorgamiento y gestión del crédito: “Prácticas predatorias y abusivas en la financiación hipotecaria a inmigrantes ecuatorianos en Esp…
2019
1.- Antecedentes y Justificativo Esta investigación se planteó a partir de los datos alarmantes de ecuatorianos inmigrantes en España involucrados en el endeudamiento hipotecario y la situación apremiante ante los numerosos casos de crédito fallido (default), desahucios y el crecimiento de demandas judiciales que afectaban a este colectivo. El autor, partícipe como asesor en el Programa de Asistencia de Asesoría Jurídica Hipotecaria para ecuatorianos afectados por las Hipotecas, desarrollado entre los años 1999 y 2007 por los Consulados y la Embajada de Ecuador en España, se vio motivado a investigar sobre las causas del default de los créditos hipotecarios del colectivo y a reflexionar sob…