Search results for "Roca"
showing 10 items of 1893 documents
THE USE OF MBR SYSTEMS FOR THE TREATMENT OF REAL SHIPBOARD SLOPS: ANALYSIS OF BIOLOGICAL PERFORMANCE AND BIOMASS BIOKINETIC ACTIVITY
2016
In order to prevent hydrocarbon discharge at sea from ships, the International Maritime Organization (IMO) enacted the MARPOL 73/78 convention in which any oil and oil residue discharged in wastewater streams must contain less than 5 ppm hydrocarbons. Effective treatment of this petroleum-contaminated water is essential prior to its release into the environment, in order to prevent pollution problem for marine ecosystems as well as for human health. The present paper reports the first results of a field gathering campaign aimed at gaining insight about the treatment of real shipboard slops with a MBR pilot plant, in terms of pilot performance and biomass biokinetic activity. The achieved re…
The CANNA-TICS Study Protocol: A Randomized Multi-Center Double-Blind Placebo Controlled Trial to Demonstrate the Efficacy and Safety of Nabiximols i…
2020
Background: Gilles de la Tourette syndrome (TS) is a chronic neuropsychiatric disorder characterized by motor and vocal tics. First-line treatments for tics are antipsychotics and tic-specific behavioral therapies. However, due to a lack of trained therapists and adverse events of antipsychotic medication many patients seek alternative treatment options including cannabis. Based on the favorable results obtained from case studies on different cannabis-based medicines as well as two small randomized controlled trials using delta-9-tetrahydrocannabinol (THC), we hypothesize that the cannabis extract nabiximols can be regarded as a promising new and safe treatment strategy in TS.Objective: To …
Pluskwiaki różnoskrzydłe (Hemiptera: Heteroptera) zimujące pod korą platanów klonolistnych Platanus x acerifolia w Polsce
2020
The paper presents the results of three-year studies conducted at 75 locations in Poland testing the use of the London planes for overwintering of true-bugs. Insects were sampled from the bark of trunks. Altogether 25 species of Heteroptera was recorded, including three invasive species that can considerable affect plane trees: Arocatus longiceps, Corythucha ciliata and Oxycarenus lavaterae.
Reciprocal relations between autonomous motivation from self-determination theory and social cognition constructs from the theory of planned behavior…
2020
Objectives The present study examined reciprocal relations between autonomous motivation from self-determination theory (SDT) and constructs from the theory of planned behavior (TPB) in a sport injury context. Methods The study adopted a three-wave longitudinal cross-lagged panel design. Physical education students in China (N = 4414; Mage = 14.42, SD = 1.75) completed self-report measures of autonomous motivation, attitude, subjective norm, and perceived behavioral control with respect to sport injury prevention at baseline (T1) and at two follow-up occasions one (T2) and three (T3) months later. Proposed reciprocal relations between autonomous motivation and the TPB constructs controlling…
El Maestrazgo del Tusón, de Pedro Calderón de la Barca: la dramaturgia de un mito histórico. Estudio y edición crítica
2014
La presente tesis doctoral aborda la consideración del auto calderoniano "El Maestrazgo del Tusón" (1659) en su doble vertiente de texto literario y texto espectacular, facetas inseparables en el análisis de todo texto dramático. El trabajo se ha estructurado en dos partes, de acuerdo con los objetivos perseguidos. En primera instancia, el propósito ha sido el de ofrecer –siguiendo los principios de la crítica textual moderna– una edición crítica fiable de uno de los autos que Pedro Calderón de la Barca (1600-1681) compuso en su época de plenitud dramática: "El Maestrazgo del Tusón", una pieza que, hasta la fecha, carecía de una fijación textual definitiva. El texto del auto se ha acompañad…
Effect of Boron Doping on the Wear Behavior of the Growth and Nucleation Surfaces of Micro- and Nanocrystalline Diamond Films
2016
B-doped diamond has become the ultimate material for applications in the field of microelectromechanical systems (MEMS), which require both highly wear resistant and electrically conductive diamond films and microstructures. Despite the extensive research of the tribological properties of undoped diamond, to date there is very limited knowledge of the wear properties of highly B-doped diamond. Therefore, in this work a comprehensive investigation of the wear behavior of highly B-doped diamond is presented. Reciprocating sliding tests are performed on micro- and nanocrystalline diamond (MCD, NCD) films with varying B-doping levels and thicknesses. We demonstrate a linear dependency of the we…
Synteza i właściwości fizykochemiczne ftalocyjaniny manganu
2017
Ftalocyjaniny to organiczne związki chemiczne, które uzyskuje się jedynie na drodze syntezy chemicznej. Stanowią one jednak analogi strukturalne porfiryn, które naturalnie występują w przyrodzie, m.in. w takich cząsteczkach jak witamina B12 czy chlorofil. Obszerne badania dotyczące kompleksów ftalocyjanin wynikają z budowy tych związków, ponieważ cząsteczkę ftalocyjaniny można modyfikować na bardzo wiele sposobów. Wpływa to na różnorodność zastosowań ftalocyjanin, m.in. w urządzeniach elektronicznych, fotowoltaicznych, jako fotosensiblilizatory, barwniki i pigmenty. Kompleksy ftalocyjanin z takimi metalami jak mangan czy kobalt są intensywnie badane ze względu na ich interesujące właściwośc…
Lettura e Composizione Integrate Cooperative nella Didattica a Distanza: esaminare gli Effetti su Studenti Universitari
2022
Per promuovere negli studenti la scrittura come attività consapevole e sistematica per lo studio può risultare efficace il Cooperative Integrated Reading and Composition (CIRC) Model, che si concentra sulla padronanza combinata di strategie di comprensione e di composizione. In rapporto essenziale con la lettura, la co-costruzione di testi stimola gli studenti a esercitare molteplici capacità: analizzare e sintetizzare, immaginare e anticipare, scegliere e selezionare, integrare e elaborare, organizzare i contenuti riguardo a situazioni comunicative e destinatari diversi. Nel presente contributo l’esercizio delle abilità di leggere e comporre testi è stato indagato su un gruppo di studenti …
Développement et caractérisation d’électrodes pour l’électrolyse alcaline de l’eau
2020
Splitting water into hydrogen and oxygen by electrolysis using electricity from intermittent ocean current, wind, or solar energies is one of the easiest and cleanest routes for high-purity hydrogen production and an effective way to store the excess electrical power without leaving any carbon footprints. The key dilemma for efficient large-scale production of hydrogen by splitting of water via the hydrogen and oxygen evolution reactions is the high overpotential required, especially for the oxygen evolution reaction. Hence, engineering highly active and stable earth-abundant oxygen evolution electrocatalysts with three-dimensional hierarchical porous architecture via facile, effective and …
A 2600-year record of past polycyclic aromatic hydrocarbons (PAHs) deposition at Holzmaar (Eifel, Germany)
2014
Polycyclic aromatic hydrocarbons (PAHs) are a proxy for climate- and human-related historical fire activity which has rarely been used beyond 1800 AD. We explored the concentration and composition patterns of PAHs together with other proxies (charcoal, C, N, S, δ13C, δ15N, and δ34S) in a sediment core of Holzmaar as indicators of variations in climate and anthropogenic activity over the past 2600 years. The concentrations of pyrogenic PAHs remained low (< 500 ng g− 1) from the pre-Roman Iron Age (600 BC) until the first significant increases to ca. 1000–1800 ng g− 1 between 1700 and 1750 AD related to regional iron production. The highest increases in pyrogenic PAH concentrations occurred w…