In the Standard Model (SM) the transition K to πνν is a Flavor Changing Neutral Current (FCNC) process in which the first order weak decay is forbidden by the GIM mechanism but is allowed, though highly suppressed, in second order due to the differing masses of the up, charm and top quarks in the mediating loops. Theoretically, this decay is sensitive to the CKM matrix element Vtd, which is one...

PURPOSE To assess interpretation performance and radiation dose when two-dimensional synthesized mammography (SM) images versus standard full-field digital mammography (FFDM) images are used alone or in combination with digital breast tomosynthesis images. MATERIALS AND METHODS A fully crossed, mode-balanced multicase (n = 123), multireader (n = 8), retrospective observer performance study wa...

Aim: Steatocystoma multiplex (SM) is a rare malformation characterized by multiple cutaneous cystic lesions containing oily substance. SM has autosomal dominant mode of inheritance, though there are a significant number of sporadic cases reported as well. Characteristically, the lesions manifest around the time of puberty and are found on the sternal areas, face, trunk and scrotum. SM limited t...

We analyze the unconventional top quark decay mode t → Hb at the quantum level within the context of general Two-Higgs-Doublet models by including the full electroweak effects from the Yukawa couplings. The results are presented in the on-shell renormalization scheme with a physically well motivated definition of tanβ. While the QCD corrections have been taken into account in the current experi...

The CP violation played an important role in the understanding of the intimate nature of the weak interaction from the early times of particle physics. After more than three decades since the discover of CP violation in the neutral kaons by Christenson, Cronin, Fitch and Turlay [1] a new kind of CP violation, the so called Direct CP violation that happens directly in the decay, was definitively...

We discuss the unique baryon number violation by two units neutron decay mode $n\to \bar p e^+\chi$, with $\chi$ being standard model (SM) neutrino $\nu$ or antineutrino $\bar\nu$ any beyond SM light fermion, in framework of effective field theory. This is kinematically allowed but rarely discussed theoretically searched for experimentally. estimate lower bound on its partial lifetime from that...

Oocyte freezing confers thermal and chemical stress upon the oolemma and various other intracellular structures due to the formation of ice crystals. The lipid profiles of oocytes and embryos are closely associated with both, the degrees of their membrane fluidity, as well as the degree of chilling and freezing injuries that may occur during cryopreservation. In spite of the importance of lipid...

BACKGROUND Conventional pacemaker implantation induces left ventricular (LV) dyssynchrony, which might affect the LV function. We sought to evaluate the impact of different right ventricular (RV) pacing sites on the LV dyssynchrony and performance. METHODS Comprehensive echocardiographic evaluation including the atrio-ventricular, inter- and intra-ventricular dyssynchrony based on M-mode, con...

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