Search results for "cover"
showing 10 items of 5959 documents
Design and Characterization of Effective Ag, Pt and AgPt Nanoparticles to H2O2 Electrosensing from Scrapped Printed Electrodes
2019
The use of disposable screen-printed electrodes (SPEs) has extraordinarily grown in the last years. In this paper, conductive inks from scrapped SPEs were removed by acid leaching, providing high value feedstocks suitable for the electrochemical deposition of Ag, Pt and Ag core-Pt shell-like bimetallic (AgPt) nanoparticles, onto screen-printed carbon electrodes (ML@SPCEs, M = Ag, Pt or AgPt, L = metal nanoparticles from leaching solutions). ML@SPCEs were characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The results were compared to those obtained when metal nanoparticles were synthesised using standard solutions of metal salts (MS@…
La semplificazione normativa nel PNRR: il coinvolgimento dei legislatori regionali tra progetti bandiera e poteri sostitutivi
2021
The essay concerns the involvement of Regional Legislators in the implementation of National Recovery and Resilience Plan («Piano nazionale di ripresa e resilienza»), considering regulatory simplification measures programmed by the Plan. In this perspective, it proposes a comparison between the Plan and the Italian Simplification Agenda 2020-2023 and it examines the framework of regional regulatory simplification measures.
Advantages of Hyaluronic Acid and Its Combination with Other Bioactive Ingredients in Cosmeceuticals
2021
This study proposes a review on hyaluronic acid (HA) known as hyaluronan or hyaluronate and its derivates and their application in cosmetic formulations. HA is a glycosaminoglycan constituted from two disaccharides (N-acetylglucosamine and D-glucuronic acid), isolated initially from the vitreous humour of the eye, and subsequently discovered in different tissues or fluids (especially in the articular cartilage and the synovial fluid). It is ubiquitous in vertebrates, including humans, and it is involved in diverse biological processes, such as cell differentiation, embryological development, inflammation, wound healing, etc. HA has many qualities that recommend it over other substances used…
Fragment‐ and Negative Image‐Based Screening of Phosphodiesterase 10A Inhibitors
2019
A novel virtual screening methodology called fragment‐ and negative image‐based (F‐NiB) screening is introduced and tested experimentally using phosphodiesterase 10A (PDE10A) as a case study. Potent PDE10A‐specific small‐molecule inhibitors are actively sought after for their antipsychotic and neuroprotective effects. The F‐NiB combines features from both fragment‐based drug discovery and negative image‐based (NIB) screening methodologies to facilitate rational drug discovery. The selected structural parts of protein‐bound ligand(s) are seamlessly combined with the negative image of the target's ligand‐binding cavity. This cavity‐ and fragment‐based hybrid model, namely its shape and electr…
Architettura e natura nei centri minori in Sicilia. Esperienze temporanee di progetto: la cascata di San Nicola nella valle di Bolognetta
2021
The current Covid-19 emergency has revealed the crucial role of the health issue, not only in terms of healthcare facilities, but also in new ways to get better, spend more free time outdoors, eat healthy and revive the economies of Local communities. Action research takes on a leading role of the Recovery Fund, of the Green New Deal in order to identify better opportunities and strategies, increasing administrative capacities and skills in small towns, through a better use of available European, national and regional funds aimed at regenerate places that until yesterday were considered on the margins. The small towns must have territorial projects capable of combining development and susta…
RIABITARE IL PATRIMONIO URBANO ED EDILIZIO DEI TERRITORI INTERNI: SPAZIO DIGITALE PER SERVIZI SANITARI EFFICIENTI
2020
La necessità del distanziamento fisico, dettata dall’epoca pandemica in corso, ricade inevitabilmente sulla vivibilità degli spazi urbani e di quelli abitativi. L’esigenza pressante di qualità della vita, nella fisicità e nelle relazioni umane, impone di riguardare con interesse a quei luoghi che ne sono depositari per sedimentazione storica. Una delle risposte è nel riabitare i centri minori dei territori interni, luoghi con bassa densità demografica e costruita, luoghi resilienti alle mutazioni urbane, luoghi salubri. Questi luoghi, di contro, sono affetti da marginalità e carenze di infrastrutture e servizi. Le tecnologie digitali si propongono sempre più come ausilio nel recupero del pa…
La 5th IABR di Rotterdam: How do we go about making city?
2012
The projects shown during the 5th IABR (International Architecture Biennale Rotterdam) "Making City", hold in Rotterdam in 2012, have treated the topic linked to the development of some specific contests, through the individuation of many factors which influence the urban planning, as global tendencies, cooperation and smart connections: these are necessary strategies to define a Smart City. They are connected not only to the infrastructures and to digital connections, but also to the business, understanding of technology, users for urban planning and control of features from which depends the success of future cities. From the integration’s ability of Architecture, urban planning and lands…
Labile nitrogen, carbon, and phosphorus pools and nitrogen mineralization and immobilization rates at low temperatures in seasonally snow-covered soi…
2006
Surface mineral horizons from four ecosystems sampled in the northwestern Italian Alps were incubated at −3 and +3°C to simulate subnivial and early thaw period temperatures for a seasonally snow-covered area. The soil profiles at these sites represent extreme examples of management, grazed meadow (site M) and extensive grazing beneath larch (site L) or naturally disturbed by avalanche and colonized by alder (site A) and the expected forest climax vegetation beneath fir (site F). Changes in labile pools of nitrogen (N) and phosphorus (P) were active at all sites at both temperatures during 14 days of laboratory incubation. Ammonium was the dominant inorganic form of total dissolved N (TDN),…
L'assistenza delle società a partecipazione pubblica nell'attuazione del PNRR
2022
Si esamina l’assistenza tecnica fornita dalle società a partecipazione pubblica alle amministrazioni nell’attuazione dei progetti inclusi nel piano nazionale di ripresa e resilienza. In particolare, ci si sofferma sulla funzione di ausilio assicurata sia dalle società a prevalente partecipazione pubblica, sia dalle società in house che già svolgono attività di committenza centrale. Ci si domanda se tale forma di assistenza costituisca una attività del tutto inedita per tali società e ci si interroga sulla sua qualificazione giuridica: in particolare, si ritiene opportuno distinguere tale attività da ipotesi affini, come l’esternalizzazione di funzioni o l’azione svolta in passato dagli enti…
Cover crops effectiveness for soil erosion control in Sicilian vineyard
2009
In vineyards, which are very common in Mediterranean area, cover crops are becoming increasingly used to reduce soil erosion. Cover crops reduce runoff by increasing infiltration and increasing roughness and then reducing the ovelandflow velocity. The aim of the present study was to quantify soil and water losses under different soil managements systems on vineyards. The study site was a Sauvignon blanc winegrape vineyard located in Southwestern Sicily. Vineyards were managed both traditionally (conventional tillage) and alternative management using cover crops: 1) Vicia faba ; 2) Vicia faba and Vicia sativa; 3) Trifolium subterraneum, Lolium perenne, Festuca rubra; 4)Trifolium subterraneum…