822 research outputs found
Use of by-products in dairy sheep nutrition
No full textThis thesis aimed to evaluate the effects of the dietary inclusion of three by-products in sheep diets:
Tomato pomace (TP) is the by-product derived from process of tomato juice, grape marc (GM) derived from winemaking and exhausted myrtle berries (EMB) derived from production of liqueur called Mirto rosso (red myrtle).This study is divided in 4 main chapters.Chapter 1 reports the literature on amounts, chemical composition and fatty acid profile of by-products from tomato, wine and myrtle industries. Their use in ruminant nutrition and the effects on milk yield and composition and the biological effects have been discussed. Furthermore, the bioactive compounds, as polyphenol, identified in these by-products have been reported.In the others chapters of the thesis are reported: the study of the effects of use of small amounts of dried tomato pomace, grape pomace and exhausted myrtle berries on milk yield and composition, and blood biochemical parameters (Chapter 2); the additional information on nutrient and polyphenol composition of the by-products from tomato, wine and myrtle industries in order to supplement existing feedstuff tables (Chapter 2); the effects of tomato pomace, grape pomace and exhausted myrtle berries on oxidative status of animals and milk (Chapter 3); the effects of these by-products on milk fatty acid profile (Chapter 3); and, finally, the effects of by-products on rumen microbiome and fermentation parameters (Chapter 4)
Giovanna Bergonzi, Andrea Cardarelli, Pier Giovanni Guzzo, Renato Peroni, Lucia Vagnetti, Ricerche sulla protostoria della Sibaritide. 1 ; Giovanna Bergonzi, Vittoria Buffa, Andrea Cardarelli, Claudio Giardino, Renato Peroni, Lucia Vagnetti, Ricerche sulla protostoria della Sibaritide. 2
No full textVan Wonterghem Frank. Giovanna Bergonzi, Andrea Cardarelli, Pier Giovanni Guzzo, Renato Peroni, Lucia Vagnetti, Ricerche sulla protostoria della Sibaritide. 1 ; Giovanna Bergonzi, Vittoria Buffa, Andrea Cardarelli, Claudio Giardino, Renato Peroni, Lucia Vagnetti, Ricerche sulla protostoria della Sibaritide. 2. In: L'antiquité classique, Tome 54, 1985. pp. 534-535
Analisi e stima del contenuto di vapor d’acqua in atmosfera prodotta attraverso misure GNSS
No full textIl presente lavoro descrive le attività svolte nell'ambito del progetto "Sistema di monitoraggio in tempo reale dell'atmosfera per il Sardinia Radio Telescope (SRT)" finanziato con la Legge Regionale N.7 del 2007 della Sardegna. Sono esposte le attività svolte per il completamento dell’infrastruttura per il monitoraggio dell'atmosfera basata su stazioni permanenti GNSS appartenenti alla rete NRTK SARNET. Il completamento ha comportato l’installazione di un radiometro (MP3000A) nel sito di SRT e l’integrazione nella rete SARNET di 5 centraline meteorologiche (Vaisala PTU300) co-locate con altrettante stazioni permanenti della rete GNSS, a copertura della Sardegna meridionale. Si presentano, inoltre, le analisi effettuate sulle stime del contenuto di vapore d'acqua (IWV) derivate dal software GPSNet della Trimble, utilizzato nel centro di controllo della rete. Lo studio ha riguardato il confronto tra i valori del contenuto di vapor d’acqua in atmosfera misurati dal radiometro di SRT con quelli derivati dai ritardi troposferici ottenuti in tempo reale dalla rete GNSS in corrispondenza delle stazioni e successivamente interpolati in SRT. Nell'ambito dello stesso studio è stato possibile testare il nuovo software Trimble Atmosphere App, attualmente implementato parallelamente al software GPSNet sulla rete SARNET, in grado di fornire in tempo reale le mappe di IWV e del contenuto totale di elettroni (TEC)
A SIMULATION TOOL ASSISTING THE DESIGN OF A CLOSE RANGE PHOTOGRAMMETRY SYSTEM FOR THE SARDINIA RADIO TELESCOPE
No full textThe Sardinia Radio Telescope (SRT) is a 64 m diameter antenna, whose primary mirror is equipped with an active surface capable
to correct its deformations by means of a thick network of actuators. Close range photogrammetry (CRP) was used to measure the
self-load deformations of the SRT primary reflector from its optimal shape, which are requested to be minimized for the radio telescope
to operate at full efficiency. In the attempt to achieve such performance, we conceived a near real-time CRP system which requires the
cameras to be installed in fixed positions and at the same time to avoid any interference with the antenna operativeness. The design
of such system is not a trivial task, and to assist our decision we therefore developed a simulation pipeline to realistically reproduce
and evaluate photogrammetric surveys of large structures. The described simulation environment consists of (i) a detailed description
of the SRT model, included the measurement points and the camera parameters, (ii) a tool capable of generating realistic images
accordingly to the above model, and (iii) a self-calibrating bundle adjustment to evaluate the performance in terms of RMSE of the
camera configurations
An atmosphere monitoring system for the Sardinia radio telescope
No full textThe Sardinia radio telescope (SRT) is a new facility managed by the Italian National Institute for Astrophysics (INAF). SRT will detect the extremely faint radio wave signals emitted by astronomical objects in a wide frequency range from decimeter to millimeter wavelengths. Especially at high frequencies (>10 GHz), specific weather conditions and interactions between signal and atmospheric constituents (mainly water and oxygen molecules) affect the radio astronomic observation reducing the antenna performances. Thus, modern ground-based telescopes are usually equipped with systems able to examine in real-time several atmospheric parameters (opacity, integrated water vapor, etc.), and in some cases to forecast the weather conditions (wind, rain, snow, etc.), in order to ensure the antenna safety and support the schedule of the telescope observations. Here, we describe the atmosphere monitoring system (AMS) realized with the aim to improve the SRT operative efficiency. It consists of a network of different sensors such as radiometers, radiosondes, weather stations, GPS and some well-established weather models. After a validation of the scheme, we successfully tested the AMS in two real practical scenarios, comparing the AMS outcomes with those of independent techniques. In the first one we were able to detect an incoming storm front applying different techniques (GPS, radiometer and the weather forecast model), while in the last one we modeled the SRT antenna system temperature at 22 GHz processing the AMS data set
Anatol Stern e Bruno Jasieński
No full textThe Author presents her first Italian translation of Anatol Stern's article (excerpted from his monograph on Polish Avant-garde "Rebelled Poetry. Sketches on Interwar Period Poetry" [1964, 2nd issue 1970]) about an other prominent initiator and ideologist of Polish Futurism, Bruno Jasieński. After the "Thaw", Stern first contributed to Jasieński's rehabilitation, publishing his poetry and the novel "I burn Paris" and writing several essays about his work. The presented article also offers a large choice of translated fragments of Jasieński's poetry, just a few known in Italy, and a Stern's artistic profile with a bibliography of his Italian version work
Emerging Role of the Ubiquitin Proteasome System in the Control of Shoot Apical Meristem Function
No full textThe shoot apical meristem (SAM) is a population of undifferentiated cells at the tip of the shoot axis that establishes early during plant embryogenesis and gives rise to all shoot organs throughout the plant's life. A plethora of different families of transcription factors (TFs) play a key role in establishing the equilibrium between cell differentiation and stem cell maintenance in the SAM. Fine tuning of these regulatory proteins is crucial for a proper and fast SAM response to environmental and hormonal cues, and for development progression. One effective way to rapidly inactivate TFs involves regulated proteolysis by the ubiquitin/26S proteasome system (UPS). However, a possible role of UPS-dependent protein degradation in the regulation of key SAM TFs has not been thoroughly investigated. Here, we summarize recent evidence supporting a role for the UPS in SAM maintenance and function. We integrate this survey with an in silico analysis of publicly-available microarray databases which identified ubiquitin ligases that are expressed in specific areas within the SAM, suggesting that they may regulate or act downstream of meristem-specific factors. [ Giovanna Frugis (Corresponding author)
Il turismo eco-responsabile nei paesi sviluppati: un nuovo segmento tra luxury e massa
No full textIl lavoro descritto nelle pagine che seguono presenta i risultati di una ricerca condotta in Italia per indagare il profilo motivazione e comportamentale dell’ecoturista
e del turista responsabile
The Teaching of Lyric Meters and the Reception of Horace in Kyiv-Mohylanian Poetics
No full textIn this article, by analyzing the use of Horace’s poetry in the teaching of metrics provided in the Kyiv Mohylanian poetics, the author shows how Latin poetry was usedas a didactic tool to support the education of devout men and loyal citizens.Siedina particularly dwells on the Sapphic and Alcaic metrical systems, as they were the most widely exemplified in the poetics. Next to the ‘simple’ quotation of Horace’s lyrics, the author individuates other modes of Horatian imitation, all of which entail its Christianization: parodies, following the masterful example of M. K. Sarbiewski, the transformation of Horace’s lyric in a Christian key, and the use of Horatian meters to compose poems on Christian topics (particularly appreciated were paraphrases of the psalms by the Scottish poet G. Buchanan). Such a Christianization of Horace and other classical authors was in line with the Christian interpretation/ imitation of Horace that had begun in Western Europe in the first centuries after Christ and continued in different guises well into the seventeenth and eighteenth centuries. The author observes that many motifs of Horace’s poetry could easily be made to coincide with the ethical and religious tenets of education at the Kyiv Mohyla Academy: for instance, reflections on the brevity of human life, the impossibility of achieving complete happiness, the avoidance of excesses, contentment with little, love of virtue and the like. In conclusion, Siedina asserts that the Christianization and moralization of Horace’s poetry, next to denying the legitimacy of the pagan pantheon, to which a Christian one was opposed, was a way for people to implicitly assert their own worth and distinct cultural identity, which in early-modern Ukraine, as elsewhere, in great part passed through schooling and literature
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