1,721,175 research outputs found
Bologna University's new 'SU1 UNIBO' Sino-Japanese plum
No full text‘SU1 UNIBO’ is a new Japanese plum cultivar developed by the Department of Agricultural Sciences of Bologna University. The original ‘Black Amber’ × ‘Howard Sun’ cross dates to 1994 and was bred by S. Lugli, S. Sansavini, R. Correale, and M. Grandi at the Cadriano Experiment Station under a joint venture with New Plant (formed by Apo Conerpo, Apofruit, and Orogel Fresco) and Bologna University. ‘Black Glamour’ exhibits notably positive growth and fruit traits. It is early bearing, of high and consistent cropping, and picks 20-25 days after ‘Shiro’ in the Bologna area. Its fruit is a high-quality, black skin, yellow-flesh Japanese plum characterized by large fruit size, pronounced firmness and juiciness, good flavour, maintains ripeness on tree for nearly a month for flexible picking, and has good postharvest storability. Bologna University’s knowledge transfer office lodged an EU plant patent application for ‘SU1 UNIBO’ in 2015 and subsequently licenced the commercial rights to New Plant for distribution in Europe
FERNANDO MALAVOLTI SPELEOLOGO E GEOLOGO
Full text linkFernando Malavolti (Modena, 1913–1954) poliedrica figura di archeologo, geologo e speleologo, a partire dagli anni Trenta del Novecento condusse una instancabile attività di ricerca con indagini sistematiche nel territorio modenese, bolognese e reggiano. Fornì un fondamentale contributo allo studio della preistoria e in particolare del Neolitico dell’Italia settentrionale. Leggendarie rimangono le spedizioni organizzate nel 1938 e nel 1945 per studiare gli aspetti geologici, idrologici, botanici, faunistici, paletnologici e toponomastici dell’area carsica dei Gessi Triassici della Val Secchia (Reggio Emilia). Fra il 1935 e il 1948 affida la narrazione meticolosa di 13 anni di ricerche pionieristiche a una serie di Diari che, grazie alla disponibilità dei figli Mara e Marco, sono pubblicati integralmente in forma digitale, corredati da una trascrizione e da indici dei toponimi e dei nomi di persona. Il volume comprende una serie di saggi scientifici che ripercorrono i diversi campi di ricerca che Malavolti attraversò. Le pagine dei diari riportano anche una inedita testimonianza di Modena negli anni della seconda guerra mondiale e tracciano il rapporto che Malavolti ebbe con Modena
Mutina sepolta: inquadramento geologico dell’area urbana di Modena
Full text linkLe pianure alluvionali sono tra le aree più popolate al mondo per le favorevoli caratteristiche morfologiche e la ricchezza di risorse. Sono piane formate dai sedimenti abbandonati dai corsi d'acqua durante le piene. Il divagare dei corsi d’acqua e le alluvioni rendono l’evoluzione di questi ambienti estremamente dinamica, caratteristica oggi notevolmente ridotta dalla costruzione degli argini artificiali. Uno dei risultati della complessa evoluzione delle pianure è che le vestigia di antiche civiltà non sono più visibili perché sepolte sotto spessi strati di sedimenti fluviali. Tra gli esempi più noti ricordiamo le civiltà mesopotamiche, dell’Antico Egitto e dell’età del bronzo della Cina. Proprio come a Modena, dove i resti della nostra antica città fondata 2200 anni fa giacciono ben al di sotto dell’area urbana moderna, a circa 5 metri di profondità. Ma com’è possibile che questo sia accaduto? Perché Mutina è sepolta a così grande profondità? La risposta a questa domanda è nascosta all’interno dei sedimenti stessi. I sedimenti rappresentano un vero e proprio archivio di inestimabile valore per ricostruire l’evoluzione degli ambienti e delle caratteristiche climatiche nelle quali hanno vissuto i nostri antenati. E per indagare le modalità con le quali è avvenuta la sedimentazione nella pianura modenese dobbiamo fare riferimento a due recenti fenomeni geologici che hanno sconvolto il nostro territorio: il terremoto del 2012 e l’alluvione del 2014. È proprio grazie allo studio di questi eventi che possiamo scoprire come la città romana sia stata lentamente “inghiottita” nel sottosuolo. Si tratta di una storia per molti versi drammatica, che ci racconta la lotta millenaria dei nostri antenati contro le alluvioni e i terremoti
Il contributo dell’indagine geologica per stabilire la provenienza della stele di Cattolica
No full textBeyond capacitive systems with optical measurements for yarn evenness evaluation
No full textYarnevenness is usually obtained with capacitivesystems evaluating mass per unit length variations. More recently, optical sensors have been proposed. In this paper, we present experimental results of yarnevennessevaluation with an optical measuring system, sensitive to the light absorbed and diffused by a moving yarn. Results obtained with the optical sensor are compared with measurements performed by means of a capacitive commercial tester. Good agreement in measured count variation CV is obtained. Moreover, optical and capacitivemeasurements, simultaneously done on the same thread, allow to obtain a reliable comparison between the two measurement methods, in particular for what concerns yarn signal spectrograms
Provenance of the transparent gypsum crystals (Lapis specularis) and gypsum mortars in the windows from the churches of Rome: S. Sabina sull'Aventino and S. Giorgio al Velabro
Full text linkThe latest example of the traditional Roman use of lapis specularis crystals in windows panels instead of glass are represented by the Paleochristian- Early Medieval churches of Rome. The churches of S. Sabina sull’Aventino and S. Giorgio al Velabro were characterized by some of the most ancient examples of windows frameworks built using gypsum mortar. The light was penetrating the panels throughout openings covered by two or more embricated gypsum cleveage fragments less than 15 cm across and up to 7 mm-thick, a technique unknown in older Roman examples, which is clearly related to the availability of small and low-quality crystals. The petrography of the gypsum mortars and the strontium and sulfur isotope analyses of the crystals indicate two diff erent supply sources. A large group of window frameworks were produced using selenite rocks and lapis specularis crystals probably quarried from Tuscany, Sicily or Cyprus, whereas a window in S. Sabina was built using alabastrine gypsum and lapis specularis crystals quarried in Emilia-Romagna, Sicily, Cyprus or Southern Turkey
Giant polygons in the realmonte mine (agrigento, sicily): Evidence for the desiccation of a messemian halite basin
Full text linkThe Messinian Realmonte salt deposit consists of a 400600 m-thick halite succession that can be divided into four main lithologie units (base to top): A) cumulates of plates settled out from a stratified water column; B) plate cumulates in a shallowing-upward sequence containing six kainite layers near the top of the unit; C) cumulates of skeletal hoppers with chevron overgrowths precipitated from a nonstratified water body; and D) skeletal halite and anhydrite. Spectacular vertical fissures cut through the upper part of unit B at its boundary with salt unit C. These fissures are spaced at intervals of up to 5 m apart, extend down to a depth of 6 m, and are filled by red mud. The salt beds affected by the fissures are commonly upturned (buckled) and are truncated and onlapped by the succeeding flat-lying halite beds of unit C. Additionally, the upturned layers are cut by vertical dissolution pipes that extend down to as much as a depth of 4 m below the fissured surface. To explain the observed superimposed structures we propose two mechanisms, both induced by the desiccation of the evaporite basin: (1) When the salt surface was exposed, the halite layers were buckled, broke into polygonal crusts, and formed tepee structures. The budding was caused by a net volume increase due to thermal expansion, and what is more important, precipitation of new halite induced by evaporative pumping of brines moving up from the groundwater table. The buckled salt layers were then affected by meteoric dissolution, which created vertical pipes. (2) The tepee structures and the associated zone of dissolution pipes are further crosscut by a new network of large polygons. These new polygonal sets are outlined by deep fissures in which red silt collected, blown by the wind or carried by episodes of surface flooding. This type of deep contraction crack is known to be produced by volumetric changes induced by annual temperature fluctuations. The documentation of contraction polygons and other exposure features represents the first report of desiccation events during the deposition of the Sicilian salt. No geological data are yet available to settle the questions if the salt of Sicily is correctable with the halite present beneath the floor of the Mediterranean and if the desiccation of the Realmonte salt basin could have been induced by: a) local tectonic causes (uplift of the basin floor by thrust activity, b) simple evaporitic drawdown, c) basinwide drop of the Mediterranean sea level, or d) complex interaction among these factors. Copyright ©1999, SEPM (Society for Sedimentary Geology)
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