For God'sake! Lift the embargo to Spain

Intorno alla metà degli anni trenta la Spagna diventò il centro dell’attenzione del mondo e tutte le grandi potenze internazionali, vecchie e nuove, vennero coinvolte, in misura diversa, nella guerra civile. Già nell’agosto del 1936, un mese dopo l’esplosione del conflitto, tutti gli Stati più rappresentativi caldeggiavano l’ipotesi di una politica comune di “non intervento”. Il ruolo guida in tal senso venne assunto dal governo inglese, capace di dissuadere, in tempi estremamente rapidi, il governo frontista francese di Leon Blum dall’intento di sostenere economicamente e militarmente il legittimo governo repubblicano spagnolo. La preoccupazione che il conflitto potesse degenerare in uno scontro più generale fu quindi la ragione principale per la quale qualche settimana dopo nacque il “Comitato di Non Intervento”, cui aderirono ben ventisette nazioni europee tra cui Francia, Inghilterra, URSS, Italia, Germania e Portogallo. Il mio progetto di ricerca dottorale esamina il ruolo, le scelte ed i relativi dibattiti in merito all’unica grande potenza, gli Stati Uniti d’America, che, pur scegliendo di rimanere neutrale, si astenne dal partecipare al suddetto Comitato. In ambito statunitense particolare rilievo assumono due aspetti del dibattito politico sulla Spagna: il primo maturato in seno all’Amministrazione Roosevelt, il secondo elaborato dalla componente Liberal della coalizione del New Deal attraverso i settimanali, “The Nation” e “The New Republic”. Il confronto pubblico acceso dalla guerra civile spagnola fu infatti l’occasione per la società civile americana per dibattere apertamente e francamente circa l’opportunità e la capacità della nazione di assumere o meno un ruolo internazionale corrispondente al prestigio socio-economico in via di acquisizione a livello mondiale. Approfondire ed esaminare il dibattito sulla guerra civile spagnola negli USA significa dunque andare alla ricerca delle radici culturali di quello che sarà uno dei più vasti ed articolati confronti politici e teorici del ventesimo secolo: l’internazionalismo americano.

Genetic variability and differentiation in the Mediterranean endemic starry ray Raja asterias (Delaroche, 1809)

The present study deal with the population structure and connectivity of the Mediterranean endemic starry ray Raja asterias (Delaroche, 1809) in the Western and Eastern Mediterranean basin. A panel of eight microsatellite loci which cross-amplify in Rajidae (El Nagar, 2010) was used to assess population connectivity and structure. Those aims were investigated by analyzing the genetic variation of 9 population sample for a total of 185 individuals collected during past scientific surveys (MEDITS, GRUND), commercial trawling and also directly at fish markets. The purpose of this thesis is to estimate the genetic divergence occurring between the Mediterranean populations and, in particular, to assess the presence of any barrier (geographic, hydrogeological and biological) to gene flow for this species. Different statistical approaches were performed to reach this aim evaluating both the genetic diversity (nucleotide diversity, allelic richness, observed and expected heterozygosity and Hardy-Weinberg equilibrium test) and the population differentiation patterns (pairwise Fst estimated and population structure analysis). The results obtained from the analysis of the microsatellite dataset suggest a geographic and genetic separation between the starry ray populations of the Mediterranean basin into three or four distinct groups: Western and Eastern Mediterranean basins and Sicilian coast always clustering as an independent group and Algeria which could be or not considered another separate group. The data were discussed from both an evolutionary and a conservation point of view and in relation to previous results obtained by the analysis of mitochondrial marker. A comparison with other Mediterranean demersal skate species was performed in order to better contextualise our results. Finally, our results could offer useful information to protect vulnerable species as R. asterias and developing effective conservation plans in the Mediterranean.

Federal Authority and the Development of Corporate Mining, 1807-1847

While the 1913-1914 copper country miners’ strike undoubtedly plays an important role in the identity of the Keweenaw Peninsula, it is worth noting that the model of mining corporations employing large numbers of laborers was not a foregone conclusion in the history of American mining. Between 1807 and 1847, public mineral lands in Missouri, in the Upper Mississippi Valley, and along the southern shore of Lake Superior were reserved from sale and subject to administration by the nation’s executive branch. By decree of the federal government, miners in these regions were lessees, not landowners. Yet, in the Wisconsin lead region especially, federal authorities reserved for independent “diggers” the right to prospect virtually unencumbered. In doing so, they preserved a comparatively egalitarian system in which the ability to operate was determined as much by luck as by financial resources. A series of revolts against federal authority in the early nineteenth century gradually encouraged officers in Washington to build a system in the copper country in which only wealthy investors could marshal the resources to both obtain permits and actually commence mining operations. This paper will therefore explore the role of the federal government in establishing a leasing system for public mineral lands in the years previous to the California Gold Rush, highlighting the development of corporate mining which ultimately set a stage for the wave of miners’ strikes in the late nineteenth and early twentieth centuries.

Ice Core Evidence for a Second Volcanic Eruption Around 1809 in the Northern Hemisphere

A volcanic signal observed in ice cores from both polar regions six years prior to Tambora is attributed to an unknown tropical eruption in 1809. Recovery of dacitic tephra from the 1809 horizon in a Yukon ice core ( Eclipse) that is chemically distinct from andesitic 1809 tephra found in Antarctic ice cores indicates a second eruption in the Northern Hemisphere at this time. Together with the similar magnitude and timing of the 1809 volcanic signal in the Arctic and Antarctic, this could suggest a large tropical eruption produced the sulfate and Antarctic tephra and a minor Northern Hemisphere eruption produced the Eclipse tephra. Nonetheless, the possibility that there were coincidental eruptions of similar magnitude in both hemispheres, rather than a single tropical eruption, should not be discounted. Correctly attributing the source of the 1809 volcanic signal has important implications for modeling the magnitude and latitudinal distribution of volcanic radiative forcing.

Collection des procès-verbaux et décisions du grand Sanhédrin, convoqué à Paris par ordre de sa majesté l'empereur et roi, dans les mois de sa majesté l'empereur et roi, dans les mois de février et mars 1807

publ. par Diogène Tama

Lettre del Jacob Israele Carmi : All'assemblea ed al sinedrio di Parigi ; 1806 - 1807

ed. dal consiglio amministrativo dell'università israelitica di Reggio dell'Emilia con pref. del Andrea Balletti e note e trad. di Lazzaro Lafde

Beleuchtung der in dem Jahre 1807 von der grossen israelitischen Sanhedrin (Versammlung) in Paris erfolgten Antworten der ihr vorgelegten zwölf Fragen sogenn des Einganges der Lehrsätzen und der letzteren

von C.H.S.

Das Jahr 1809 und die Juden

von A. Tänzer