Search results for "Generation"
showing 10 items of 3050 documents
Energy Retrofit. A Case Study—Santi Romano Dormitory on the Palermo University
2021
Electrical and thermal consumption related to buildings, whether civil, commercial, public, or of any other kind, is very much in focus today. With today’s targets for energy savings, reduction of consumption, and environmental impact, it is necessary to carry out energy retrofits to modernize installations and their management. The realization of an effective improvement requires a careful analysis of the case study because each category of building has different requirements such as different load profiles and different installations and needs. This was carried out by studying the electrical and thermal load profiles. A good initial energy audit can provide the retrofit solutions capable …
Pension Schemes and Falling Birth-Rates: Change in Customs or Microeconomic Optimization?
2004
In this paper, we develop an overlapping generations model where fertility is endogenous. The utility of the parents is a function of the number of their children, and each child implies two types of fixed costs: the financial cost and the cost in terms of time. A "pay-as-you-go" pension scheme introduces an externality in that the number of children will be fewer than optimal because their favorable impact on the level of pension income is not taken into account. First, we define the competitive equilibrium dynamics and the steady state. This allows comparisons with the optimal stationary state, a notion which generalizes the golden rule. Two instruments, pensions and child benefits, are n…
The Sustainable Energy Action Plan. A Sicilian case study
2012
The European Union, to reach the objective of the emission reduction, has introduced several projects, including the “Convenant of Mayors”, vo-luntary action aimed to involve the cities of the European Community in the process towards environmental and enrgetic sustainability. Over 2100 muni-cipalities in Europe have joined or are in the process of ratification, but for the 954 italians signatories, only four have drawn up the required tools. The case study "Lampedusa" (presented by the writer as a master's thesis CasaClima - speaker arch. Fattor S., Co-prof. Trombino) comes from the de-sire to measure, in a Sicilian reality, multidisci-disciplinary approaches to de-fine strategic planning …
Diluire Mondello Descrizioni per un progetto
2012
Il volume pubblica i materiali originali del concorso internazionale di idee per la riqualificazione urbana di Mondello, una localita balneare della costa settentrionale di Palermo. Concorso vinto dall'autore stesso. Il libro utilizza questa occasione di riflessione a partire da una occasione concreta di trasformazione, per affrontare criticamente le questioni scientifico disciplinari legate al tema del Landscape Urbanism e alle evoluzioni contemporanee della nozione di Progetto Urbano. Il volume ripercorre i contributi critici e teorici della disciplina degli ultimi vent'anni e propone un'avanzamento critico delle teorie sul paesaggio urbano e sulle geografie della città contemporanea. Il …
Comments on 'formation and characterization of nanotubes of La(OH) 3 obtained using porous alumina membranes'
2010
New experimental evidence concerning the formation of La(OH)3 nanowires on anodic alumina membranes by cathodic polarization in 0.05 M lanthanum nitrate solution is provided to further support the conclusions previously reached in our work (Bocchetta et al 2007 Electrochem. Commun. 9 683-8) and recently criticized by González-Rovira et al (Nanotechnology 2008 19 495305). Some unconvincing aspects of the paper of González-Rovira et al, according to which the same electrochemical process should lead to the formation of hydroxycarbonate nanotubes, are also discussed.
Intra- and Trans-Generational Phenotypic Responses of the Greater Wax Moth, Galleria mellonella, to a Low-Nutrition Larval Diet
2020
We investigated the intra- and trans-generational effects of larval diet on immune function, body size and development time of the greater wax moth, Galleria mellonella (Lepidoptera: Pyralidae). We found that moths reared on a diet diluted with cellulose (a low-nutrition diet) were about one-third smaller, had about one-fifth longer development time and exhibited about 10% stronger encapsulation responses as compared with moths reared on the standard diet. The low-nutrition parental diet prolonged the development time of male offspring that were fed the low-nutrition diet by about 4% and the development time of female offspring that were fed the standard diet by about 1%. However, females t…
Ad “Uso e Consumo” del suolo
2021
Parlare di consumo di suolo significa affrontare di una questione attuale che pone le sue basi in una lunga storia complessa e articolata. La complessità e l'incertezza del concetto di consumo di suolo è da ricercare anche nella sua storia che è legata a quella dell'uso del suolo. Pertanto, definire chiaramente il termine consumo di suolo è difficile nonostante una ricca letteratura sull'argomento sia oggi disponibile. Si potrebbe dire che il consumo di suolo deve essere inteso come un processo antropico che opera una trasformazione, attraverso la realizzazione, soprattutto nelle aree agricole, di infrastrutture di vario tipo che spesso distruggono le caratteristiche ambientali del territor…
Cogeneration: a regulatory framework toward growth
2005
Abstract After having defined the general rules for the European liberalised energy market, new actions are needed to improve the energy system. In the rising common framework, the environmental policies and particularly the cost-internalising actions are being empowered, in order to favour improvements in conversion efficiencies and to promote low environmental impact technologies. The emerging EU policy for the promotion of cogeneration and trigeneration plants that fixes the eligibility criteria for high conversion efficiency plants is here discussed. On the basis of thermodynamic remarks and of a comparative analysis of the evaluation criteria applied to most industrialised countries, t…
Immunological priming in the wood tiger moth (Parasemia plantaginis)
2014
Hyönteisiin lukeutuu monia merkittäviä tuholaisia, taudinvälittäjiä ja hyödyllisiä lajeja, minkä takia hyönteisten taudit, taudinaiheuttajat ja immuunipuolustus ovat ekologisesta, ekonomisesta ja lääketieteellisestä näkökulmasta tärkeitä tutkimuskohteita. Viimeaikaiset tutkimukset paljastavat hyönteisten ja muiden selkärangattomien immuunijärjestelmien pystyvän erikoistumaan ja luomaan pitkäkestoista immuniteettia. Jälkimmäinen ilmiö tunnetaan tieteellisissä artikkeleissa nimellä ”immunological priming”, jonka voisi kääntää suomeksi esimerkiksi ”immuunipohjustukseksi”. Immuunipohjustus on muistinkaltaista vastustuskykyä, joka auttaa elimistöä puolustautumaan tehokkaammin toistuvia tartuntoj…
Data from: Stress for invasion success? Temperature stress of preceding generations modifies the response to insecticide stress in an invasive pest i…
2012
Adaptation to stressful environments is one important factor influencing species invasion success. Tolerance to one stress may be complicated by exposure to other stressors experienced by the preceding generations. We studied whether parental temperature stress affects tolerance to insecticide in the invasive Colorado potato beetle Leptinotarsa decemlineata. Field-collected pyrethroid-resistant beetles were reared under either stressful (17°C) or favourable (23°C) insecticide-free environments for three generations. Then, larvae were exposed to pyrethroid insecticides in common garden conditions (23°C). Beetles were in general tolerant to stress. The parental temperature stress alone affect…