Search results for "Itch"
showing 10 items of 781 documents
Endpoint Admission Control with Delay Variation Measurements for QoS in IP Networks.
2002
In this paper we describe a novel Endpoint Admission Control scheme (EAC) for IP telephony. EAC mechanisms are driven by independent measurements taken by the edge nodes on a flow of packets injected in the network to probe the source to destination path. Our scheme is characterized by two fundamental features. First, it does not rely on any additional procedure in internal network routers other than the capability to apply different service priorities to probing and data packets. Second, the connection admission decision is based on the analysis of the probing flow delay variation statistics. Simulation results, which focus on a IP telephony scenario, show that, despite the lack of core ro…
PCP-DV: An End-to end Admission Control Mechanism for IP Telephony
2001
In this paper we describe a novel endpoint admission control mechanism for IP telephony:the PCP-DV which is characterized by two fundamental features. First, it does not rely on any additional procedure in internal network routers other than the capability to apply different service priority to probing and data packets. Second, the triggering mechanism for the connection admission decision is based on the analysis of the delay variation statistics over the probing flow. Numerical results for an IP telephony traffic scenario prove that 99th delay percentiles not greater than few ms per router are guaranteed even in overload conditions.
Depletion of polyubiquitin encoded by the UBI4 gene confers pleiotropic phenotype to Candida albicans cells.
2003
We have studied the roles of polyubiquitin in Candida albicans physiology. Heterologous expression of the C. albicans polyubiquitin (UBI4) gene in a ubi4 Saccharomyces cerevisiae strain suppressed the mutant phenotype (hypersensitivity to heat shock). A heterozygous strain UBI4/Deltaubi4::hisG, obtained following the ura-blaster procedure, was used to construct a conditional mutant using a pCaDis derivative plasmid. By serendipity we isolated the UBI4 conditional mutant as well as a UBI4 mutant containing a non-functional MET3 promoter. Depletion of polyubiquitin conferred pleiotropic effects to mutant cells: (i) a limited increased sensitivity to mild heat shock; (ii) increased formation o…
An analytical model of a new packet marking algorithm for TCP flows: Preliminary insights
2004
In differentiated services networks, packet marking schemes can be devised to differentiate packets belonging to a same TCP flow, with the goal of improving the experienced performance. This paper presents an analytical model for an adaptive packet marking scheme proposed in our previous work. The model combines three specific sub-models aimed at describing i) the TCP sources aggregate ii) the marker, and iii) the network status. Some preliminary simulative results seem to validate the model.
Verbal fluency in school-aged Spanish children: analysis of clustering and switching organizational strategies, employing different semantic categori…
2021
La tarea de fluidez verbal (FV) es una medida de la flexibilidad cognitiva y la estrategia de búsqueda dentro del léxico y el tema semántico. En este trabajo, se probó el uso de estrategias organizativas, es decir, agrupación y cambio en la fluidez semántica y fonológica en niños españoles sanos divididos en dos grupos: el grupo 1 de niños más pequeños (de 8 a 9 años) y el grupo 2 de niños mayores (de 10 años de edad) –11) introducción de diferentes letras (F, A, S y P, M, R) y categorías semánticas (animales y comidas o bebidas). La fluidez semántica fue mayor que la fluidez fonológica en ambos grupos de edad. Además, los niños mayores mostraron un mejor desempeño de ambas fluencias que lo…
Switching Behaviour in Smart Phone Messaging Services : It’s a Question of Context, Content, and Features of the Service
2021
This paper studies switching behaviour in smart phone messaging services. This study aims to add knowledge about the factors affecting switching behaviour in smart phone messaging services. The empirical study is qualitative, and the data was collected with interviews using the laddering method. This study was carried out to find out the reasons behind customer decisions when choosing between smart phone messaging services. Using the Push-Pull Mooring framework, the findings of this study indicate that the switching decision regarding smart phone messaging service is influenced by three factors: the context of the message, the content of the message, and the features of the service.
An Integrated Multi-service Software Simulation Platform: SIMPSONS Architecture
2005
This paper describes SIMPSONS (SIp and MPls Simulations On NS-2), which is a software platform for simulating multiple network scenarios, such as Telephony Over IP (TOIP), and multi-services networks extending the functionalities of Network Simulator NS-2. The innovative aspects of SIMPSONS is the complete integration of control protocols and traffic engineering mechanisms inside the same simulation tool. In fact, next generation networks must meet basically two fundamental requirements: support of Quality of Service (QoS) and Traffic Engineering (TE) functionalities. SIMPSONS is able to simulate DiffServ, MPLS, OSPF and SIP and their interaction in everything TOIP scenario. So with this po…
La confezione in atmosfera controllata migliora la qualità post-raccolta del lici
2018
La coltivazione del frutto in Sicilia è una realtà in espansione e su cui in futuro puntare. Necessario affinare le tecniche di conservazione per allungare la shelf-life dei frutti di lici
I frutti tropicali e sub-tropicali
2020
I fruttiferi di origine tropicale più diffusi in Italia sono il mango, l’avocado, il litchi e la papaya, ai quali fanno da corollario poche altre specie, definibili minori per la loro diffusione sporadica in micro aree vocate, come il nespolo del Giappone, l’anona, il banano e la passiflora. La coltivazione di queste specie esotiche in Italia è concentrata al Sud Italia con la quasi totalità degli impianti di mango, avocado e litchi sulle coste tirreniche della Sicilia. In queste aree hanno trovato condizioni vocate che permettono alle piante di vegetare, seppur con alcuni adattamenti fisiologici ed agronomici, permettendo buone rese ed eccellente qualità dei frutti. La diffusione di queste…
Cookbooks. Narrative spaces and user manuals
2019
Nel sistema che definisce le diverse tipologie di volumi di cui si occupa la grafica editoriale nell’ambito del design della comunicazione visiva, una sezione a sé, con una sua storia, una sua struttura, un suo preciso linguaggio, è quello occupato dai libri di cucina, veri e propri manuali d’uso per la preparazione dei cibi, e così dovrebbero essere sempre chiamati, non semplicemente ricettari, molto più genericamente e riduttivamente, i quali rappresentano degli artefatti atti a contenere non solo pratiche e tecniche ma anche indicazioni relative ad alimenti, dosaggi, tempi, temperature, lavorazioni, procedure, finiture, tutti aspetti questi che li fanno più assomigliare a manuali tecnici…