Search results for " RETE"

Evaluation of methods aimed at complete removal of template from molecularly imprinted polymers

2001

Polymers imprinted with clenbuterol were used to study the influence of various post-polymerization treatments [e.g., thermal annealing, microwave assisted extraction (MAE), Soxhlet extraction and supercritical fluid template desorption] on the bleeding of residual template. The aim of the study was to reduce the bleeding to levels that would allow the use of the materials as affinity phases for extraction of clenbuterol from bovine urine at concentrations below 1 ng ml−1. After treatment, the clenbuterol imprinted polymers were packed into solid-phase extraction columns and the bleeding was estimated by quantifying the amount of template released in 10 ml of methanol–acetic acid (9 + 1 v/v…

Resa e qualità del grano duro in coltivazione biologica

2020

Nella stagione 2019-20, il confronto tra varietà di frumento duro in coltura biologica è stato realizzato in 10 campi localizzati in 7 regioni del Centro-Sud (Sicilia, Sardegna, Puglia, Basilicata, Lazio, Toscana e Marche). Ai vertici della graduatoria produttiva si ritrovano RGT Rangodur, Monastir, Daurur, Marakas, Marco Aurelio e Kanakis. Per un buon equilibrio fra resa e proteina si distingue Marco Aurelio insieme ad Anco Marzio, Furio Camillo, Claudio, Monastir, Marakas e Kanakis

Comparison of the structure of the plasma-facing surface and tritium accumulation in beryllium tiles from JET ILW campaigns 2011-2012 and 2013-2014

2019

In this study, beryllium tiles from Joint European Torus (JET) vacuum vessel wall were analysed and compared regarding their position in the vacuum vessel and differences in the exploitation conditions during two campaigns of ITER-Like-Wall (ILW) in 2011-2012 (ILW1) and 2013-2014 (ILW2) Tritium content in beryllium samples were assessed. Two methods were used to measure tritium content in the samples - dissolution under controlled conditions and tritium thermal desorption. Prior to desorption and dissolution experiments, scanning electron microscopy and energy dispersive x-ray spectroscopy were used to study structure and chemical composition of plasma-facing-surfaces of the beryllium sampl…

Approccio differenziato per la validazione dei dati GPS provenienti dalla rete UNIPA

2011

In questo lavoro ci si è proposti la verifica di qualità iniziale e la successiva elaborazione delle osservazioni provenienti dalle stazioni permanenti appartenenti alla rete dell’Università di Palermo, creata nell’ambito del progetto PRIN2005 dal titolo: “Reti di stazioni permanenti GPS per il rilievo in tempo reale in impieghi di controllo e emergenza” e gestita dal Dipartimento di Ingegneria Civile, Ambientale e Aerospaziale. Tale rete attualmente è formata da nove stazioni permanenti localizzate presso la Facoltà di Ingegneria dell’Università di Palermo e altri istituti o enti pubblici presenti nelle località di Termini Imerese (PA), Trapani, Agrigento, Caltanissetta, Partinico (PA), Ca…

Hypobetalipoproteinemia

2011

Hypobetalipoproteinemias (HBL) represent a heterogeneous group of disorders characterized by reduced plasma levels of total cholesterol (TC), low density lipoprotein-cholesterol (LDL-C) and apolipoprotein B (apoB) below the 5th percentile of the distribution in the population. HBL are defined as primary or secondary according to the underlying causes. Primary monogenic HBL are caused by mutations in several known genes (APOB, PCSK9, MTP, SARA2) or mutations in genes not yet identified. Familial hypobetalipoproteinemia (FHBL) is the most frequent monogenic form of HBL with a dominant mode of inheritance. It may be due to loss-of-function mutations in APOB or, less frequently, in PCSK9 genes.…

Pressures, rewards and teacher retention: a comparative study of primary teaching in England and Finland

2004

The article presents some findings from the York‐Jyvaskyla Teacher Professionalism project. The project was a follow‐up study to earlier case‐study research in six schools in Finland and six schools in England on the impact of educational reforms on teachers' work. Data were collected by re‐interviewing a sample of teachers from the original schools six years later. The views of English and Finnish teachers concerning the ways in which changes in practice, pay and working conditions affected their perception of teaching as a profession are contrasted. The crucial factors discouraging teachers from remaining in teaching were work intensification, low pay, deteriorating pupil behaviour and a …

Un'applicazione della Social Network Analisys alla rete di relazioni di un Gruppo d’Acquisto Solidale: l’esperienza di Gasualmente

2012

The phenomenon of GAS (Solidarity Purchase Groups) in Sicily has in Gasualmente an important actor. This GAS, was created following a structured training program and research by the Faculty of Agriculture of the University of Palermo. It now plays an important role as activator of relationships and ethical affirmation of critical consumption, and promotion of organic products. The study aims through the Social Network Analysis, to investigate Gasualmente network and the role played by all the actors involved.

Discussion of “Soil Water Retention Characteristics of Vertisols and Pedotransfer Functions Based on Nearest Neighbor and Neural Networks Approaches …

2013

Optimising an outdoor membrane photobioreactor for tertiary sewage treatment

2019

[EN] The operation of an outdoor membrane photobioreactor plant which treated the effluent of an anaerobic membrane bioreactor was optimised. Biomass retention times of 4.5, 6, and 9 days were tested. At a biomass retention time of 4.5 days, maximum nitrogen recovery rate:light irradiance ratios, photosynthetic efficiencies and carbon biofixations of 51.7¿±¿14.3¿mg¿N·mol¿1, 4.4¿±¿1.6% and 0.50¿±¿0.05¿kg CO2·m3influent, respectively, were attained. Minimum membrane fouling rates were achieved when operating at the shortest biomass retention time because of the lower solid concentration and the negligible amount of cyanobacteria and protozoa. Hydraulic retention times of 3.5, 2, and 1.5 days …

Comparison of Activated Sludge Processes at Different Temperatures: 35°C, 27–55°C, and 55°C

2002

The performance of mesophilic (35°C; referred to as R1) and thermophilic (55°C; R3) laboratory activated sludge processes (ASPs) as well as ASP with a fluctuating temperature (27-56°C; R2) was compared. During the 124-day runs, in R1 and R3 hydraulic retention time was gradually reduced from 18 h to 3 h, corresponding to an increase in volumetric loading rate from 2 to 10 kg soluble COD m−3d−1; in R2 hydraulic retention time was gradually reduced from 18 to 4.5 h, corresponding to an increase in volumetric loading rate from 2 to 7.5 kg soluble COD m−3d−1. R1 removed on average 85% of soluble COD (GF50-filtered) that was approximately 10% more than R3. In R2 SCOD removal was dependent on the…