Search results for "Southern"
showing 10 items of 415 documents
Typification of 14 names in the Dianthus virgineus group (Caryophyllaceae)
2021
The nomenclature of 14 taxa from Central and Southern Europe within the Dianthus virgineus group is discussed. Dianthus aggericola Jord., D. collivagus Jord., D. consimilis Jord., D. orophilus Jord., D. saxicola Jord., D. juratensis Jord. are here lectotypified by specimens from the Jordan herbarium in LY, while D. godronianus Jord. by a specimen in P. Dianthus subacaulis Vill. is neotypified by a specimen collected on Mont Ventoux (S. France) and housed in MPU. For D. sylvestris Wulfen, a lectotype is here designated and its previous neotypification is discussed. Dianthus caryophyllus var. tenuifolius Moris, D. caryophyllus f. minor Moris and D. sylvestris var. garganicus Ten. are lectotyp…
Fonti storiche e fonti numismatiche a confronto nella Sicilia centro-meridionale della fine del V sec. a.C.
2006
The historical events that involved Sicily at the end of the 5th century BC find a precise description in the X-XIII books of Diodorus Siculus. The numismatic testimonies from the territory of central-southern Sicily, in addition to confirming what has been illustrated by the historian of Agira, integrate and enrich the information, adding data for the same period relating above all to the indigenous centres, neglected by the sources.
L'uguale e il diverso. Come le diseguaglianza deprimono il capitale sociale
2017
Come si creano e come si distruggono lo spirito di cooperazione, la solidarietà, la lealtà, la reciprocità, la fiducia? Quali sono le condizioni che favoriscono (o deprimono) la formazione di capitale sociale? La risposta a questa domanda può illuminare numerosi fenomeni contemporanei quali la crescita della propensione alla chiusura e all’esclusione e il ritorno di manifestazioni discriminatorie, xenofobe e razziste. Anche le peggiori performance economiche del Mezzogiorno possono essere illuminate dalla risposta alla domanda su come si crea (e si distrugge) il capitale sociale.
Long-distance trade and consumption of mollusks in the Byzantine and Early Islamic periods in the Negev Desert
2021
Abstract Recent archaeological excavations in the Negev desert in the southern Levant have yielded a variety of mollusk shells originating from the Mediterranean Sea, the Nile River, and the Red Sea, uncovered in the trash mounds and settlements of Byzantine and Early Islamic sites. These remains indicate that aquatic products were among the merchandised comestibles transported across long distances. Three shellfish taxa manifest such transportation: (1) the small clam, Donax trunculus, commonly found in the exposed sandy wash zones of the Eastern Mediterranean coast; (2) the large freshwater mussel, Chambardia rubens, whose habitat stretches from the Nile River to western Africa; and (3) t…
Influence of the Madden-Julian Oscillation on Southern African summer rainfall
2007
Rain-causing mechanisms over Southern Africa (south of 15˚S) involve both tropical and temperate dynamics. Most studies focused on the synoptical timescale, while the intraseasonal (20-120 days) variability has more been neglected to date. This study aims at determining whether the dominant mode of intraseasonal variability in the Tropics, namely the Madden-Julian Oscillation (MJO), has a significant impact on Southern African rainfall and associated atmospheric dynamics. The examination of outgoing longwave radiation (OLR) over Southern Africa shows indeed significant intraseasonal fluctuations at the 30-60 day timescale, i.e. in the pe- riods that are typically reminiscent of the MJO. In ord…
Early Jurassic (Sinemurian to basal Toarcian) ammonites of the Brescian Prealps (Southern Alps, Italy).
2017
This work provides a more precise up-to-date biostratigraphical framework of the Early Jurassic ammonite succession of the Brescian Prealps with more than seventy taxa for the Sinemurian, Pliensbachian and basal Toarcian corresponding to a about 30 horizons or faunal assemblages rather well correlable with the NW European standard zonation. These results are supported with already published data, new data from recent field investigations, revised contributions of different authors and with the study of the historical collection of the Museum of Natural Sciences of Brescia (Northern Italy). The biohorizons are referred to the Lower Jurassic carbonate series of the Brescian Prealps, cropping …
A hemispherical dynamo model : Implications for the Martian crustal magnetization
2014
Abstract Mars Global Surveyor measurements revealed that the Martian crust is strongly magnetized in the southern hemisphere while the northern hemisphere is virtually void of magnetization. Two possible reasons have been suggested for this dichotomy: a once more or less homogeneously magnetization may have been destroyed in the northern hemisphere by, for example, resurfacing or impacts. The alternative theory we further explore here assumes that the dynamo itself produced a hemispherical field ( Stanley et al., 2008 , Amit et al., 2011 ). We use numerical dynamo simulations to study under which conditions a spatial variation of the heat flux through the core–mantle boundary (CMB) may yiel…
Knowing is half the battle: Seasonal forecasts, adaptive cropping systems, and the mediating role of private markets in Zambia
2019
Abstract This paper examines how smallholders living in regions where a drought is forecasted adapt their farm practices in response to receiving seasonal forecast information. The article draws on a unique longitudinal dataset in Zambia, which collected information from farm households before and after a significant drought caused by the 2015/2016 El-Nino Southern Oscillation. It finds that farmers residing in areas forecasted to be drought-affected and receiving seasonal forecast information are significantly more likely to integrate drought tolerant crops into their cropping systems compared to similar households not receiving this information. Moreover, the probability that a farmer imp…
Exploring the determinants of anti-mafia entrepreneurial behaviour: an empirical study on southern Italian SMEs
2017
This study analyses organized crime from an economic perspective and highlights the crucial role of extortion in mafia activities. From an economic viewpoint, we debate the conditions that lead companies to resist mafia extortion. To study the reactions of firms to extortion, we adopt an institutional perspective and consider the contribution of different theories in the socially responsible behaviour and organized crime literature, in an attempt to understand this complex entrepreneurial behaviour better. A sample of 116 southern Italian SMEs, whose entrepreneurs have publicly opposed mafia extortion, was selected. By adopting a matched-pair design, anti-mafia firms were subsequently match…
Forest operations in coppice: Environmental assessment of two different logging methods
2016
Wood is a renewable resource and it actively contributes to enhance energy production under a sustainable perspective. However, harvesting, transport and use of wood imply several consequences and impacts on environment. There are different ways for managing forests dedicated to wood production and a sustainable approach is fundamental to preserve the resource. In this context, Life Cycle Assessment (LCA) is a useful tool for estimating the environmental impacts related to renewable resources. Traditional coppice is a common approach for forest management in several areas, including southern Europe and, specifically, Italy, Spain and the Balkans. Due to different terrain conditions, differe…