196,542 research outputs found
Orgoglio risorgimentale e memoria dinastica. L’Otto-Novecento e le opere dei cimiteri Torriani
No full textNel contributo sono ricostruite, con l'ausilio di fonti documentarie inedite, le vicende relative all'edificazione e alla qualificazione scultorea dei due cimiteri della dinastia dei patroni Torriani, legate, come ben testimonia il coinvolgimento di Federico Confalonieri, alla gloriosa temperie del Risorgimento italiano. Una connessione comprovata anche da una grande tela, raffigurante la famiglia Torriani-Missori, nella quale è effigiato Giuseppe Missori, noto per avere salvato, nel 1860, la vita a Giuseppe Garibaldi
Mother-young recognition in an ungulate hider species: A unidirectional process
No full textThis version is the final, definitive version of this article. Mother‐Young Recognition in an Ungulate Hider Species: A Unidirectional Process.
Marco V. G. Torriani, Elisabetta Vannoni, and Alan G. McElligott
The American Naturalist , Vol. 168, No. 3 (September 2006), pp. 412-420
Published by: The University of Chicago Press for The American Society of Naturalists
Article DOI: 10.1086/50697
Latti fermentati
No full textSono descritte le caratteristiche composizionali, microbiologiche e funzionali dei più diffusi latti fermentati. Particolare rilievo è stato dato alle tecnologie di produzione e all'attività svolta dai microrganismi coinvolti nei processi fermentativi
Conservation Laws For The Korteweg-de Vries Equation And The Theory Of Partitions
No full textWe show how the terms appearing in the expressions for the densities and the fluxes for the Korteweg-de Vries equation may be found by combinatorial methods. Our basic device consists in associating partitions and their Ferrers graphs to the first density and to the first flux, and then in proceeding inductively following very simple rules. Furthermore, we use unrestricted partitions and a recurrence relation to specify every term of every integral power of the Sturm-Liouville (or one-dimensional Schrödinger) operator. © 1986.1137345348Flaschka, Newell, Ratiu, (1983) Physica, 9 D, p. 300Sato, Sato, (1980) RIMS Kokyuroku, 388, p. 183Sato, Sato, (1981) RIMS Kokyuroku, 414, p. 181Date, Kashiwara, Jimbo, Miwa, Non-linear integrable systems: classical theory and quantum theory (1983) Proc. RIMS Symposium, pp. 39-119. , M. Jimbo, T. Miwa, Kyoto, May 13–16, 1981, World Scientific, SingaporeMiura, Gardner, Kruskal, (1968) J. Math. Phys., 9, p. 1204Riordan, (1958) An introduction to combinatorial analysis, , Wiley, New York, [reprinted by Princeton Univ. Press, Princeton, 1980]Hardy, Wright, (1960) An introduction to the theory of numbers, , fourth Ed., Oxford Univ. Press, LondonKruskal, Miura, Gardner, Zabusky, (1970) J. Math. Phys., 11, p. 952Gel'fand, Dikii, ASYMPTOTIC BEHAVIOUR OF THE RESOLVENT OF STURM-LIOUVILLE EQUATIONS AND THE ALGEBRA OF THE KORTEWEG-DE VRIES EQUATIONS (1975) Russian Mathematical Surveys, 30, p. 77Gel'fand, Dikii, Fractional powers of operators and Hamiltonian systems (1977) Functional Analysis and Its Applications, 10, p. 259H.H. Torriani, Constructive inverse function and implicit function theorems, forthcomingH.H. Torriani, Integral powers of the Sturm-Liouville operator and the theory of partitions, forthcomingBoerner, (1970) Representations of groups, , North-Holland, AmsterdamSato, (1981) RIMS Kokyuroku, 439, p. 3
Tracing Pediococcus acidilactici in ensiled maize by plasmid-encoded erythromycin resistance
No full textCuring experiments undertaken on Pediococcus acidilactici strain S364, isolated from maize silage, revealed a linkage between a resident 40 MD plasmid and resistance to erythromycin, oleandomycin and tylosin. The possibility of using erythromycin resistance to monitor the fate of this strain in a model ensiling system was also demonstrated
Practical importance of tetracycline resistance in Lactobacillus plantarum used as silage inoculant
No full textA strain of Lactobacillus plantarum was selected for its peculiar tetracycline resistance as inoculants for maize silage. This character was linked to a 5.8 Mdal plasmid as demonstrated by curing method. Tetracycline resistance resulted in an efficient marker to demonstrated the colonization ability of L. plantarum introduced in a laboratory model maize silage
Potential of Lactobacillus casei, culture permeate and lactic acid to control microorganisms in ready-to-use-vegetables
No full textThe effects of various treatments (i.e., the addition of a strain of Lactobacillus that produces antimicrobial agents, Lactobacillus casei IMPC LC34, its sterile permeate, and 0.5 or 1% lactic acid) on the growth of microorganisms associated with ready-to-use mixed salad vegetables were compared during refrigerated (8°C) storage. The addition of 3% culture permeate to mixed salads reduced the total mesophilic bacteria counts from 6 to 1 log CFU/g, and suppressed coliforms, enterococci, and Aeromonas hydrophila after 6 days of storage at 8°C. A similar effect was shown when the L. casei culture was inoculated in the vegetables. One percent lactic acid had a bacteriostatic effect on the bacterial groups examined, except for total and fecal coliforms, which were reduced by about 2 and 1 log unit, respectively, while 0.5% lactic acid did not affect the indigenous microflora of the vegetables. The potential of these new hurdles to prevent the growth of spoilage and pathogenic bacteria in ready-to-use salad vegetables is suggested
Partial characterization and plasmid linkage of a non-proteinaceus antimicrobial compound in a Lactobacillus casei of vegetable origin
No full textLactobacillus casei IMPC LC34 of vegetable origin produces a non- proteinaceous inhibitory compound with a broad spectrum of activity towards Gram-positive and Gram-negative bacteria, including pathogens. The active substance, mainly produced in the stationary phase of growth, is insensitive to proteolytic enzymes, lipase and catalase, and is stable at 121 °C for 30 min. The inhibitory activity was detected either at 8 °C or at 37 °C. The active compound does not contain glucidic groups, is inactivated by Na- metaperiodate, and its molecular mass is between 2000 and 5000 Da. Plasmid curing experiments showed that both antimicrobial compound immunity and production determinants were encoded by an 8.8 kbp plasmid. The effectiveness of the active agent was verified on ready-to-use vegetables, using either the Lact. casei strain or its culture supernatant fluid as inoculant, compared with cured clone. The application potential of the Lact. casei strain or its culture supernatant fluid for assuring the microbiological safety of ready- to-use vegetables is discussed
16S-23S ribosomal spacer polymorphism in dairy propionibacteria
No full textThe 16S-23S spacer region was amplified from 67 strains of dairy propionibacteria using primers G1 and L1. All species are readily distinguishable from the different molecular weights of the amplified bands and sequence polymorphisms among the most similar groups can be enhanced by Hinf I restriction
Isolation of aminopeptidase N genes of food associated propionibacteria and observation of their transcription in skim milk and acid whey.
No full textIn this study consensus oligonucleotides PN5/PN3 were designed by aligning the aminopeptidase N genes (pep N) of various actinobacteria and applied to the isolation of the pep N genes of dairy propionibacteria (PAB) and closely related species associated with food. This allowed sequencing of a pep N gene region from Propionibacterium jensenii LMG 16541. The sequence of this gene was completed by inverse PCR. Consensus primer pairs NU1/D1 and NU2/D1 were derived from the alignment of the new sequence with its homologues in Propionibacterium acnes and other actinobacteria; these were used to start sequencing of the pep N genes of Propionibacterium freudenreichii, Propionibacterium thoenii, Propionibacterium microaerophilum, Propionibacterium acidipropionici, Propioni bacterium cyclohexanicum and Propionibacterium microaerophilum. Reverse transcription coupled with PN5/PN3 and NU1/D1 PCR tests indicated that the pep N genes of P. jensenii and P. freudenreichii are expressed during growth in skim milk and acid whey
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