Flavour Changing Higgs Couplings in a Class of Two Higgs Doublet Models

We analyse various flavour changing processes like $t\to hu,hc$, $h\to \tau e,\tau\mu$ as well as hadronic decays $h\to bs,bd$, in the framework of a class of two Higgs doublet models where there are flavour changing neutral scalar currents at tree level. These models have the remarkable feature of having these flavour-violating couplings entirely determined by the CKM and PMNS matrices as well as $\tan\beta$. The flavour structure of these scalar currents results from a symmetry of the Lagrangian and therefore it is natural and stable under the renormalization group. We show that in some of the models the rates of the above flavour changing processes can reach the discovery level at the LHC at 13 TeV even taking into account the stringent bounds on low energy processes, in particular $\mu\to e\gamma$.Comment: 33 pages, 8 figures; matches version accepted for publicatio

Multiplicity results for periodic solutions of second order ODEs with asymmetric nonlinearities

Abstract. We prove various results on the existence and multiplicity of harmonic and subharmonic solutions to the second order nonautonomous equation x ′ ′ + g(x) =s+w(t, x), as s → + ∞ or s →−∞,where g is a smooth function defined on a open interval]a, b[ ⊂ R. The hypotheses we assume on the nonlinearity g(x) allow us to cover the case b =+∞(or a = −∞) andghaving superlinear growth at infinity, as well as the case b<+∞(or a>−∞) and ghaving a singularity in b (respectively in a). Applications are given also to situations like g ′ (−∞) = g ′ (+∞) (including the so-called “jumping nonlinearities”). Our results are connected to the periodic Ambrosetti- Prodi problem and related problems arising from the Lazer- McKenna suspension bridges model. 1

Fibrations of genus two on complex surfaces

We consider fibrations of genus 2 over complex surfaces. The purpose of this paper is primarily to provide a geometric description of the possible structures of the fibration on a neighborhood of a singular fiber. In particular it is shown that the "geometric data" of the singular fiber determines the fibration on its neighborhood up to a transversely holomorphic $C^{\infty}$-diffeomorphism. The method employed is quite flexible and it applies to good extent to fibrations of arbitrary genus.Comment: This is the final version, June 201

Medicalization of Crime: The Florianopolis Penitentiary as a Space for Knowledge and Power (1933-1945)

Objectives: There are two central objectives of this article. One is to analyze how fears that affected urban centers after the 19th century have repercussions on Florianopolis; and the other is to understand the strategies created by their control, specifically in penitentiary centers

What if the Masses of the First Two Quark Families are not Generated by the Standard Higgs?

We point out that, in the context of the SM, $|V^2_{13}| + | V^2_{23}|$ is expected to be large, of order one. The fact that $|V^2_{13}| + |V^2_{23}| \approx 1.6 \times 10^{-3}$ motivates the introduction of a symmetry S which leads to $V_{CKM} ={1\>\!\!\!\mathrm{I}}$, with only the third generation of quarks acquiring mass. We consider two scenarios for generating the mass of the first two quark generations and full quark mixing. One consists of the introduction of a second Higgs doublet which is neutral under S. The second scenario consists of assuming New Physics at a high energy scale , contributing to the masses of light quark generations, in an effective field theory approach. This last scenario leads to couplings of the Higgs particle to $s\overline s$ and $c \overline c$ which are significantly enhanced with respect to those of the SM. In both schemes, one has scalar-mediated flavour- changing neutral currents which are naturally suppressed. Flavour violating top decays are predicted in the second scenario at the level \mbox{Br} (t \rightarrow h c ) \geq 5\times 10^{-5}.Comment: 11 pages, 1 figur

Equilibrium Unemployment

A search-theoretic model of equilibrium unemployment is constructed and shown to be consistent with the key regularities of the labor market and business cycle. The two distinguishing features of the model are: (i) the decision to accept or reject jobs is modeled explicitly, and (ii) markets are incomplete. The model is well suited to address a number of interesting policy questions. Two such applications are provided: the impact of unemployment insurance, and the welfare costs of business cycles

Post-Tracheal Extubation Negative Pressure Pulmonary Edema

O edema pulmonar de pressão negativa (EPPN) também descrito na literatura como edema agudo do pulmão pós-obstrutivo ou pós-extubação traqueal, é uma entidade rara, com uma incidência de aproximadamente 0.1 % em doentes anestesiados. Os autores descrevem o caso, ocorrido após extubação traqueal, de um doente submetido a orquidectomia por via laparoscópica sob anestesia geral balanceada. Relatam a fisiopatologia, o padrão radiológico e broncoscópico e as medidas terapêuticas instituídas

Does customer-based reputation add to social and mass media reputation in judging social responsibility of banks?

Purpose: Reputation is a critical asset for finance and banking organizations where the mere suspicion of a problem suffices to trigger media turmoil with high risk of market share losses. Investing in media to build reputation has been therefore a priority for banks. However, another source of reputation may stem from direct front-office contact and it is yet unknown to which extent it plays a role when confronted with the widespread social and mass media reach. This study aims at testing the extent of the importance of customer-based reputation, as against media-based reputation, in explaining customer outcomes.info:eu-repo/semantics/publishedVersio