1,445 research outputs found
Short and long term antihypertensive effects of renal angioplasty vs. medical treatment in patients with atherosclerotic renal artery stenosis
No full textThe history of geochronology in La Plata: Borrello´s Project
No full textEl Dr. Angel V. Borrello hacia fines de la década de 1950 y principios de 1960 planificó la creación del primer laboratorio de Geocronología Rb-Sr en el país, con su instalación en la sede del Departamento de Geología de la Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata (CIC). Este hecho pionero que señalo aquí como ‘Proyecto Borrello’, fue un ambicioso desafío que se animó a enfrentar en aquellas épocas, consciente de la potencialidad de la investigación geocronológica en Argentina. Aconsejado por el especialista Dr. John Reynolds (Berkeley, USA) y también por el Dr. Umberto Cordani (SP, Brasil) quien iniciaba su liderazgo sudamericano en la temática, Borrello se decidió a instalar un laboratorio que pudiera ser superador y complementario de la metodología K-Ar que ya estaba en funcionamiento en San Pablo, Brasil. Logró el apoyo de la CIC para la instalación de la parte correspondiente a la trituración y concentración de minerales y el laboratorio ‘limpio’ de geoquímica. Este debía contar con estándares isotópicos, columnas cromatográficas, todo lo correspondiente a la purificación de reactivos y por otro lado la instalación del equipo denominado espectrómetro de masas (NUCLIDE, USA). El fallecimiento prematuro del Dr. Angel Borrello en 1971, fue el factor fundamental para que el ambicioso proyecto quedara inconcluso y se retrasaran las investigaciones geocronológicas en el país.Dr. Angel V. Borrello in the late 1950s and early 1960s planned the first Rb-Sr geochronological laboratory in Argentina, at the Department of Geology of the Commission for Scientific Research at the Buenos Aires province in La Plata. This pioneering fact that I point out here as 'Borrello Project' was an ambitious challenge, aware of the potential of the geochronological research in Argentina. Advised by specialist Dr. John Reynolds (Berkeley, USA) and also by Dr. Umberto Cordani (SP, Brazil) who initiated its South American leadership in the field, Borrello was decided to install a laboratory that could be complementary to the K-Ar method that was already in operation in Sao Paulo, Brazil. He obtained the support of the CIC from Buenos Aires province for the laboratory of crushing and mineral concentration and for 'clean' geochemistry. This should have isotopic standards, chromatographic columns, all corresponding to the purification of reagents and the installation of mass spectrometer equipment for measuring samples (NUCLIDE, USA). Borrello was death in 1971 at the age of 53 and that was the main factor for the ambitious project remained unfinished and geochronological investigations were delayed in the country.Facultad de Ciencias Naturales y Muse
The history of geochronology in La Plata: Borrello´s Project
No full textEl Dr. Angel V. Borrello hacia fines de la década de 1950 y principios de 1960 planificó la creación del primer laboratorio de Geocronología Rb-Sr en el país, con su instalación en la sede del Departamento de Geología de la Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, La Plata (CIC). Este hecho pionero que señalo aquí como ‘Proyecto Borrello’, fue un ambicioso desafío que se animó a enfrentar en aquellas épocas, consciente de la potencialidad de la investigación geocronológica en Argentina. Aconsejado por el especialista Dr. John Reynolds (Berkeley, USA) y también por el Dr. Umberto Cordani (SP, Brasil) quien iniciaba su liderazgo sudamericano en la temática, Borrello se decidió a instalar un laboratorio que pudiera ser superador y complementario de la metodología K-Ar que ya estaba en funcionamiento en San Pablo, Brasil. Logró el apoyo de la CIC para la instalación de la parte correspondiente a la trituración y concentración de minerales y el laboratorio ‘limpio’ de geoquímica. Este debía contar con estándares isotópicos, columnas cromatográficas, todo lo correspondiente a la purificación de reactivos y por otro lado la instalación del equipo denominado espectrómetro de masas (NUCLIDE, USA). El fallecimiento prematuro del Dr. Angel Borrello en 1971, fue el factor fundamental para que el ambicioso proyecto quedara inconcluso y se retrasaran las investigaciones geocronológicas en el país.Dr. Angel V. Borrello in the late 1950s and early 1960s planned the first Rb-Sr geochronological laboratory in Argentina, at the Department of Geology of the Commission for Scientific Research at the Buenos Aires province in La Plata. This pioneering fact that I point out here as 'Borrello Project' was an ambitious challenge, aware of the potential of the geochronological research in Argentina. Advised by specialist Dr. John Reynolds (Berkeley, USA) and also by Dr. Umberto Cordani (SP, Brazil) who initiated its South American leadership in the field, Borrello was decided to install a laboratory that could be complementary to the K-Ar method that was already in operation in Sao Paulo, Brazil. He obtained the support of the CIC from Buenos Aires province for the laboratory of crushing and mineral concentration and for 'clean' geochemistry. This should have isotopic standards, chromatographic columns, all corresponding to the purification of reagents and the installation of mass spectrometer equipment for measuring samples (NUCLIDE, USA). Borrello was death in 1971 at the age of 53 and that was the main factor for the ambitious project remained unfinished and geochronological investigations were delayed in the country.Facultad de Ciencias Naturales y Muse
La pesca responsabile in Italia: un percorso di ricerca
No full textLo studio si è incentrato sulla distinzione tra comportamento responsabile apparente e reale, fondata sui risultati dell’approfondimento teorico delle motivazioni alla base del comportamento individuale, che individua il comportamento razionale come quello proteso alla stabilizzazione o al miglioramento o alla massimizzazione del profitto, mentre la natura della condotta responsabile è definita da tre postulati dei quali il primo non può che risiedere nella riduzione dello sforzo di pesca; gli altri sono i postulati della volontarietà e quello della (dis)utilità economica. Da questi risultati deriva un’ulteriore considerazione che attiene alla natura dei premi e che richiama il concetto di efficacia biologica, da intendere come comportamento capace di avviare ad una effettiva ricostituzione degli stock; comportamento, questo, il cui esito positivo è, tuttavia, fortemente influenzato da fattori esogeni non direttamente controllabili da chi esercita a livello individuale l’attività di pesca. Ne consegue, pertanto, che nel caso di risultati biologici non favorevoli conseguenti alla condotta intrapresa, il premio avrebbe non solo la natura di indennizzo per le perdite economiche subite, ma anche una finalità esclusivamente socio-economica, se si tiene conto sia dei livelli di reddito mediamente non elevati percepibili dagli operatori a cui è associabile, conseguentemente, un’alta “disutilità” marginale, sia delle esigue opportunità occupazionali alternative esistenti per i marittimi imbarcati che potrebbero risultare in esubero in corrispondenza di valori più contenuti delle variabili di controllo. Infine, la fissazione di un premio per i comportamenti responsabili reali assume la natura di incentivo economico all’adozione di tale condotta anche per quegli operatori che non hanno seguito tale comportamento
Le donne e i minori nella costituzione repubblicana
No full textIl saggio esamina la disciplina costituzionale presente nella carta del 1948 italiana , esaminata anche alla luce della giurisprudenza costituzionale e dei giudici comuni e nei suoi antefatti storici, di due categorie di soggetti deboli, quali le donne ed i minor
Preserving the integrity of social impact investing: Towards a distinctive implementation strategy
No full textSocial impact investing (SII) is a strategy of asset allocation that aims to generate social and environmental impact alongside a financial return. Compared to other approaches of sustainable finance it holds an enormous potential of generating solutions to societal challenges. However, scholars have claimed that social impact often just employs logic upheld by the mainstream investment approach. Therefore, the paper investigates the assumption that SII has not developed a distinctive implementation strategy able to translate the prioritization of social impact into practice and how to overcome this issue. The thematic analysis of data collected through 105 interviews with Italian SII financiers and the top managers of social ventures allowed us to identify three features of an SII tailored practice: promoting a cultural shift of intermediaries, adopting a coopetition approach, and integrating the social impact in the terms of the financial transaction. Lastly, the paper drafts a research agenda to enhance the proper theorization of SII focusing on the definition of social risk, social return, and governance mechanisms. The key contribution of this article is confirming the lack of an SII-specific practice able to endogenize the intent of prioritizing social impact and providing suggestions to prevent the risk of impact washing
Recensione a S. Treggiari, Servilia and Her Family
No full textRecensione a Treggiari, S. (2019). Servilia and Her Family. Oxford: Oxford University Press, XXI+378 pp
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