Search results for "unification"

Implications of parity violation in atoms for gauge theories

1977

The knowledge to be gained on neutral currents from parity-violating observables in heavy atoms is studied. After isolating the relevant couplings, the major part of the analysis is done within the framework ofSU 2 ⊗U 1 unified gauge theories of weak and electromagnetic interactions. The leptonic and hadronic sectors of these models are studied separately, by means of the available information from neutrino physics, to impose restrictions on the mass of the neutral intermediate boson and on the unification angle. The observable in atoms, which provides a link between the two sectors, is found to be powerful in discriminating among models.

Unified description of structure and reactions: implementing the Nuclear Field Theory program

2015

The modern theory of the atomic nucleus results from the merging of the liquid drop (Niels Bohr and Fritz Kalckar) and of the shell model (Marie Goeppert Meyer and Axel Jensen), which contributed the concepts of collective excitations and of independent-particle motion respectively. The unification of these apparently contradictory views in terms of the particle-vibration (rotation) coupling (Aage Bohr and Ben Mottelson) has allowed for an ever increasingly complete, accurate and detailed description of the nuclear structure, Nuclear Field Theory (NFT, developed by the Copenhagen-Buenos Aires collaboration) providing a powerful quantal embodiment. In keeping with the fact that reactions are…

Le syndicalisme précurseur de l’unité : politisation et recomposition interne

2008

National audience; Mouvement global, le Front populaire est donc à l’origine de mutations profondes pour la CGT. C’est à cette unité et à ses conséquences que nous nous intéresserons, en axant notre réflexion et nos questionnements autour de trois axes, celui du caractère précurseur de l’unité syndicale, de la politisation du mouvement syndical et de sa recomposition interne.

High scale mixing relations as a natural explanation for large neutrino mixing

2015

The origin of small mixing among the quarks and a large mixing among the neutrinos has been an open question in particle physics. In order to answer this question, we postulate general relations among the quarks and the leptonic mixing angles at a high scale, which could be the scale of Grand Unified Theories. The central idea of these relations is that the quark and the leptonic mixing angles can be unified at some high scale either due to some quark-lepton symmetry or some other underlying mechanism and as a consequence, the mixing angles of the leptonic sector are proportional to that of the quark sector. We investigate the phenomenology of the possible relations where the leptonic mixin…

The ideal restructuring of migrant families in the immigration law

2013

The legal configuration of kinship ties in immigration law is governed by a restrictive logic that combines a dependent and nuclear composition with mismatches in the concrete form of managing the distances, the dynamics and the times at origin and destination. The family model in immigration law has an ideal and dominant approach openly excluding other family realities in the social context. Law in an inherent tendency towards the ideal doesn’t allow a legitimate choice between autonomy and individual freedom in order to define or not the family project and own relationships. In this paper I discuss from a critical approach the inconsistencies presented by the current Spanish immigration l…

H-Diplo Roundable XXII-10 on Harrison. After the Berlin Wall: Memory and the Making of the New Germany, 1989 to the Present

2020

3D Map Computation from Historical Stereo Photographs of Florence

2018

The analysis of early photographic sources is fundamental for documenting and understanding the evolution of a city so rich in history and art as Florence. Indeed, by the 1860s several photographers used to work in town, and their images (often obtained through stereoscopic set-ups) can help us to reconstruct Florence in 3D as it was by the time of the Italian unification. The first and most delicate part of such reconstruction process is the computation of disparity maps from the historical stereo pairs. This is a very challenging task for fully-automatic computer vision algorithms, since XIX century photographs are affected by several problems—ranging from superficial damages to asynchron…

Donne e codici nell’Italia preunitaria

2023

Spousal power in the codes and nineteenth-century legal reflection - (Mutual?) rights and duties - The debate on coercive measures to protect the "conjugal home" - Marital incapacity - (In)equal spouses: separation in French and Bourbonic codification.

Su un carteggio inedito di Francesco Ferrara

2011

This paper deals with some letters by Ferrara written between the years 1864 an 1870, except for the year 1869. They are about thirty-two hand written letters, among wich some have never been published. They were sent by Francesco Ferrara to his daughter Lilli and to Giuseppe Bracco Amari (Pepè).In these letters Ferrara refers to personal events commenting both on some figures and the political life of his time. he particulary wrote about his involvement in the Italian Financial politics, his suffered decision of taking part directly in the Reign government and the consequences of the stock market crisis for his family.

What can we learn from Long Time Series? Italian Living Standards after Unification and Dualism North-South

2012

Using Italian time series since 1861, we explore the evolution of living standards afterpolitical unification both at the national and at the territorial level. Firstly, we use univariate statistical analysis on homogeneous national time series. Secondly, we employ available homogeneous series at a disaggregated level to measure territorial disparities across regions and four macro-areas. Notwithstanding that time convergence occurred quite rapidly at the national level after WWII, territorial differences became more marked in the period 1936-1951, both in terms of material and social well-being.However, in the final decades of the 20th century disparities among the macro-areas declined, es…