Molecular approaches in pig breeding to improve meat quality

This is a review that considers the molecular genetics approaches and strategies to identify genes relevant for pig meat quality. Moreover the manuscript describes the most innovatives procedures of functional genetics applied to pig genomics

VDE: an emulation environment for supporting computer networking courses

Emulators have long been a valuable tool in teaching. Particularly in the OS course, emulators have allowed students to experiment meaningfully with different machine architectures. Furthermore, many such tools run in user-mode, allowing students to operate as system administrators without the concomitant security risks. Virtual Distributed Ethernet (VDE) is a system which emulates, in user-mode, all aspects of an internet, including switches, routers, communication lines, etc, in a completely realistic manner, consistent with the operation of such artifacts in the real world. VDE's can be implemented on a single computer, spread over several machines on the same LAN or scattered across the Internet. A VDE can interoperate with both real systems (via standard virtual interface/connectivity tools) and several virtual machine environments, support encryption, and actually run fast enough to support real applications. Furthermore, a VDE can interface/interoperate with real networks. VDN's have proven highly effective in supporting both undergraduate and graduate networking courses, and a wide range of student experiments and projects

The Kaya project and the uMPS hardware emulator

Ideally, the most meaningful learning experience for stu\uaddents in an undergraduate OS course would be to develop fully \uadfunctional OS's on their own. This can be accom\uadplished using \ub5MPS, a hardware emulator for a pedagogi\uadcally undergraduate\uadappropriate hardware architecture, along with Kaya, a specification for a multi\uadlayer OS supporting multiprocessing, VM, thread synchronization, external de\uadvices (disks, terminals, tape, printers, and network inter\uadfaces) and a file system. Traditional OS projects like Nachos[3] or OS/161[9] pro\uadvide students with a significant starting code base. Students then modify existing OS modules or add new ones. With \ub5MPS/Kaya students undergo an innovative and pedagogically different experience of starting only with a hardware emulator (i.e. no initial OS code base for students to build on/replace) and ending with a completely student written OS capable of running student written C programs.\ua

Design and implementation of a multifunction, modular and extensible proxy server

This paper introduces Prometeo (Available under the GPL license on sourceforge. See http://prometeo-proxy.sourceforge.net/) a multi-function, modular and extensible proxy server created as part of one the author's thesis work. We will discuss the needs that this project was meant to address: mainly the lack of an application with the aforesaid features, combined with native IPv6 support and ease of administration. Prometeo also provides a C++ framework which simplifies the development of networking applications. The design of Prometeo's will be described, starting with an overview of its components and modules and commenting on the most significant parts of the implementation. Then we will focus on the main issues considered during the development of the project, comparing the adopted solutions with those of other state-of-the-art packages like Squid. Finally we will discuss new ways of improving Prometeo's performances and scalability

Functional genomics to improve meat quality in pigs

Il capitolo descrive le nuove tecnologie genomiche che possono essere utilizzate anche per comprendere le basi genetiche della qualit\ue0 dei prodotti di origine animale con particolare riferimento alla carne suina. Si passano in rassegna in sintesi queste tecnologie di genomica funzionale che comprendono tutte le tecniche di analisi del'RNA per migliorare le conoscenze sui processi biochimici e fisiologici che avvengono nel muscolo dopo la macellazione e controllano la qualit\ue0 dei prodotti sia fraschi che trasfomati. Vengono riportati i risultati di lavori che descrivono alcune applicazioni delle pi\uf9 recenti tecnologie per l'analisi dei trascritti del tessuto muscolare ai fini di una migliore valutazione delle caratteristiche qualitative della carne. Tali tecnologie potranno dare un rilevante contributo anche per la definizione di pi\uf9 efficienti piani di miglioramento genetico delle popolazioni zootecniche nella valutazione genetica dei riproduttori

Genetic chracterization of Cinta Senese pig breed: analysis of polymorphisms in four genes affecting performance and phenotypic traits

National audienceL'investisseur potentiel évalue un cheval de la même façon qu'un dirigeant évalue une entreprise : il s'appuie sur des critères d'évaluation et détermine l'ensemble des risques encourus liés à la gestion de cette entreprise. Deux points sont développés dans cet article. D'une part, la difficulté d'attribuer une valeur comptable réaliste à un bien vivant, dont l'évaluation repose sur des critères essentiellement subjectifs. D'autre part, la difficulté d'enregistrer les risques et dépréciations pour l'exploitant de ce type de bien, du point de vue de leur anticipation et de leur estimation

Comparison of prenatal muscle tissue expression profiles of two pig breeds differing in muscle chracteristics.

The aim of the study was to compare purebred Duroc and Pietrain prenatal muscle tissue transcriptome expression levels at different stages of prenatal development to get insight into the differences in muscle tissue development in these pig breeds