La presenza Carlista a Trieste

La presenza Carlista a Trieste è rappresentata da tre luoghi della città che testimoniano tangibilmente la storia della famiglia reale proscritta di Spagna e del loro seguito: il palazzetto di via del Lazzaretto Vecchio 24, nel quale vissero Carlos V, la principessa di Beira, Carlos VI e la consorte; la cappella di San Carlo in cattedrale, dove sono seppelliti Carlos V e la consorte, Carlos VI e la consorte, Juan III e Carlos VII; il campo III del cimitero di S. Anna, che raccoglie i resti di uomini e donne fedeli al tradizionalismo e che seguirono fino alla morte la dinastia legittima di Spagna

Low field magnetotransport in strained Si/SiGe cavities

Low field magnetotransport revealing signatures of ballistic transport effects in strained Si/SiGe cavities is investigated. We fabricated strained Si/SiGe cavities by confining a high mobility Si/SiGe 2DEG in a bended nanowire geometry defined by electron-beam lithography and reactive ion etching. The main features observed in the low temperature magnetoresistance curves are the presence of a zero-field magnetoresistance peak and of an oscillatory structure at low fields. By adopting a simple geometrical model we explain the oscillatory structure in terms of electron magnetic focusing. A detailed examination of the zero-field peak lineshape clearly shows deviations from the predictions of ballistic weak localization theory.Comment: Submitted to Physical Review B, 25 pages, 7 figure

Environmental impacts of global supply chain: a review of scientific, policy and legal components for including environmental and climate challenges

During the last two decades globalisation has been a key variable driving economic growth and raising the living standards of nearly everyone on the planet, although not without cost. Indeed, the growth in world trade resulting from globalisation is now increasingly seen as an issue in the scientific and political debate on the environmental impacts of global supply chain and consumption. Most cost efficient locations around the world accelerate the trends towards international specialization causing some distortions of the markets in terms of the use of natural resources. The relative international competitiveness of companies in nations with stronger environmental protection regulations (haven hypothesis) is one argument for looking at alternative global environmental regulatory tools that are compatible with international trade agreements and development policies. Literature recognises that stringent environmental policies can force pollution intensive sectors to move to regions more favourable if the abatement costs are too high. However, trade is not a driver of environmental degradation, but the structure of the markets and the presence of market failures (externalities, no definitions of property rights) are the causes of environmental impacts.This report analyses the key features of global supply chain and its environmental impacts related to biodiversity loss, water conservation, raw material. The report provides a deep analysis on Climate change and global supply chain. It analyses the scientific, legal and policy components of the international debate over carbon and trade. It introduces and analyses the concept of the consumption-based approach and compares it with the production-based one. The reports highlights that policy makers should look beyond the traditional geo-political regions and a consumption-based perspective would represent a significant step in this direction in order to manage a sustainable global supply chain.JRC.H.7-Climate Risk Managemen

Conductance quantization in etched Si/SiGe quantum point contacts

We fabricated strongly confined Schottky-gated quantum point contacts by etching Si/SiGe heterostructures and observed intriguing conductance quantization in units of approximately 1e2/h. Non-linear conductance measurements were performed depleting the quantum point contacts at fixed mode-energy separation. We report evidences of the formation of a half 1e2/h plateau, supporting the speculation that adiabatic transmission occurs through 1D modes with complete removal of valley and spin degeneracies.Comment: to appear in Physical Review

An allelic polymorphism within the human tumor necrosis factor alpha promoter region is strongly associated with HLA A1, B8, and DR3 alleles.

The tumor necrosis factor (TNF) alpha gene lies within the class III region of the major histocompatibility complex (MHC), telomeric to the class II and centromeric to the class I region. We have recently described the first polymorphism within the human TNF-alpha locus. This is biallelic and lies within the promoter region. Frequency analysis of the TNF-alpha polymorphism, using the polymerase chain reaction and single-stranded conformational polymorphism, in HLA-typed individuals, reveals a very strong association between the uncommon TNF allele and HLA A1, B8, and DR3 alleles. This is the first association between TNF-alpha and other MHC alleles and raises the possibility that the uncommon TNF-alpha allele may contribute to the many autoimmune associations of the A1,B8,DR3 haplotype