3,519 research outputs found
Printed Resctipt from Marcus M. Serafini to the Bishop of Ferns
No full textPrinted [rescript] with handwritten insertions from [Marcus] M. Serafini, secretary to the Congregation for Religious, Rome, to the Bishop of Ferns. Prescribing elections, after which the bishop can refer back to the congregation with his case
Innovation in regional context: the case of Emilia-Romagna
No full textThe author builds upon the vast literature on the notion of
“knowledge economy” in order to describe and analyze recent transformations in the dynamics of innovation in Europe. He focuses on the emergence of new “regional systems”, in which regions become crucial institutions that mediate between industrial districts and the broader context of the new global economy. Serafini uses the Italian region of Emilia-Romagna – whose productive system is characterized by a remarkable innovative capacity – as an exemplary case-study. He
thus reconstructs the postwar tradition of industrial districts in this region, describes the limits of this form of organization, and sketches some of the salient aspects of the more recent transformations. The current phase is characterized by the active engagement of local administrations in fostering a close interaction between regional research centers and industries. This new model of regional system, and the
new innovation processes that characterize it, cannot be properly understood through traditional economic and statistical approaches, Serafini argues. Instead, these tools need to be integrated with qualitative methods that enable the analyst to map and interpret the structural
and historical features of the system as well
La sequenza stratigrafica, Catalogo (con A. Ruta Serafini), Note conclusive (con A. Ruta Serafini)
No full textVengono presentati i risultati di un intervento di archeologia di emergenza effettuato nella necropoli orientale di Padova, che ha portato al recupero di 26 sepolture di VI sec. a. C
TRANSGLUTAMINASES IN SENESCENCE AND PROGRAMMED CELL DEATH OF LEAVES AND PETALS: THEIR SIMILARITIES TO ANIMAL TRANSGLUTAMINASES
No full textFree polyamines (PAs) have a contrasting role in the delay of senescence in animals, whereas in plants its protective effect is better established, eventhough the molecular mechanism is not clarified. We hypothesised that PAs can be conjugated to specific proteins by catalysis of Ca++-dependent transglutaminases (TGases). TGases are involved in PCD in animals, whereas few data are available in plants. Plants utilized were: Nicotiana tabacum corolla, models of short-lived flowers and Lactuca sativa leaves, commercially utilised for food purposes. Many morphological and physiological parameters were examined.
The supply of spermine (SM) to excised flowers or entire plant efficiently delayed senescence and PCD in petals or leaves respectively. SM caused an increase also of putrescine (PU) and spermidine (SD) levels. Only in senescent plants a new TGase band was immunodetected and, in concomitance, high molecular mass and other protein bands were PA-modified. During senescence mainly mono-, bis-PU and bis-SD catalysis increased. This data suggests that the protective effect of PAs could be mediated by TGase. SM effect on the retention of leaf proteins and chlorophylls was analysed in Valeriana young and senescent plants. Most of chlorophyll is bound to the antennae of light-harvesting complexes (LHC), known preferential thylakoid TGase substrates under light2. In Valeriana LHC enriched fractions, different TGase isoforms, immunologically related to TGases of animal origin, were co-purified. PA conjugation to both photosystems was light-stimulated.
The capacity of plants to express animal TGases and the similarities in the TGase sequences and activity in animals and plants have also been explored. Rat TGase (DP1 ORF) introduced into mature rice embryos by bombardment was expressed by the plant. It is Ca2+-dependent and active in in vitro assay, showing that plants could produce functional mammalian TGases3. Thylakoid TGase recognises animal substrates as well as animal TGases plant substrates, but only the plant TGase/plant substrate catalysis is light regulated2.
As in both the investigated senescence models any TGase has been fully-purified until now, another approach was undertaken. On the basis of the identification of a TGase-like domain in an A. thaliana gene, AtPng1p, we have cloned its codifying sequence on E. coli and purified the over-expressed recombinant protein. All biochemical assays showed a clear Ca++, pH, and DTT dependent TGase activity. This TGase was immunodetected by three antibodies raised against animal TGases. Data and bio-informatic analysis also suggest a possible protease activity for this first plant sequenced TGase4.
1 D Serafini-Fracassini, S Del Duca, F Monti, F Poli, G Sacchetti, AM Bregoli, S Biondi and M Della Mea (2002) -Transglutaminase activity during senescence and programmed cell death in the corolla of tobacco (Nicotian a tabacum) flowers. Cell Death and Diff. 9 (3) 309-321.
2 M. Della Mea, A. Di Sandro, L. Dondini, S. Del Duca, F.Vantini, C.Bergamini, R. Bassi and D. Serafini-Fracassini - A Zea mays 39 kDa thylakoidal transglutaminase catalyses the modification by polyamines of light harvesting complex II in a light-dependent way. Planta, in press. DOI 10.1007/s00425-004-1278-6
Le necropoli
No full textVengono presentati i tratti salienti delle pratiche funerarie del centro patavino e la distribuzione e l'organizzazione delle sue necropoli durante l'età del Ferr
13.1.1 Lamina con guerriero
No full textpresentazione di una lamina votiva ad altezza quasi naturale e molto stretta, stilizzata, databile tra III e II secolo a.C. nell'ambito dell'influenza celtica nella pedemontana venet
L'arte delle situle
No full textBreve saggio introduttivo alla sezione tematica della mostra, in cui si delinea lo sviluppo della manifestazione artistica definita 'Arte delle situle' quale principale manifestazione artistica dei Veneti antichi nel I millennio a.C.il testo offre una breve sintesi sul fenomeno dell'arte delle situle, principale manifestazione artistica del I millennio a.C
How successful business people experience envy
No full textZ magistrskim delom je avtorica želela odgovoriti na raziskovalno vprašanje, katere vidike poslovno uspešni ljudje vključujejo v svoje opisovanje dojemanja in doživljanja zavisti v svojem delovnem okolju.
Pri raziskovanju je uporabljala metodo osnovane teorije, s katero je na podlagi empiričnih podatkov, pridobljenih z intervjuji poslovno uspešnih posameznikov, prepoznala njihovo dojemanje. Avtorica je z odprtim in osnim kodiranjem oblikovala osem glavnih kategorij: posameznikovo doživljanje čustev in občutij, posameznikovo doživljanje zavisti, posameznikovo delovanje, delovno mesto, medsebojni odnosi, poslovna uspešnost, težave in medsebojna podpora, okolje in družbeni odzivi. Posamezne kategorije je avtorica nato podrobneje obrazložila s podrednimi kategorijami in jih povezala z že obstoječo literaturo.
Magistrsko delo prinaša osvetlitev in poglobitev razumevanja problematike dojemanja zavisti poslovno uspešnih posameznikov, ki je opazna v slovenskem prostoru. Področje zavisti pri uspešnem posamezniku je v tuji literaturi dobro raziskano, na slovenskem področju pa tovrstnih raziskav izjemno primanjkuje. Rezultati raziskovalnega dela prinašajo informacije, ki so lahko v pomoč vsem, ki prihajajo v stik z zavistjo, še posebej pa ljudem, ki na kakršnem koli področju dosegajo uspehe. Najsi bo to na poslovnem ali zasebnem področju življenja.With her master\u27s thesis, the author wanted to answer the research question, which aspects of business successful people include in their description of the perception and experience of envy in their work environment.
In her research, she used the method of grounded theory, with which she identified their perception on the basis of empirical data obtained through interviews of business-successful individuals. Through open and axial coding, the author formed eight main categories: an individual\u27s experience of emotions and feelings, an individual\u27s experience of envy, an individual\u27s performance, a job, interpersonal relationships, business performance, problems and mutual support, environment and social responses. The author then explained the individual categories in more detail with subordinate categories and connected them with the existing literature.
The master\u27s thesis sheds light on and deepens the understanding of the problem of the perception of envy of business-successful individuals, which is noticeable in Slovenia. The field of envy of a successful individual is well researched in foreign literature, but in the Slovenian field such research is extremely lacking. The results of the research work provide information that can help everyone who comes into contact with envy, and especially people who are successful in any field. Be it in business or private life
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