888 research outputs found
CP-violating phase on magnetized toroidal orbifolds
We study the CP-violating phase of the quark sector in the flavor
model on with non-vanishing magnetic fluxes, where
properties of possible origins of the CP violation are investigated minutely.
In this system, a non-vanishing value is mandatory in the real part of the
complex modulus parameter of the two-dimensional torus. On without
orbifolding, underlying discrete flavor symmetries severely restrict the form
of Yukawa couplings and it is very difficult to reproduce the observed pattern
in the quark sector including the CP-violating phase . In
cases of multiple Higgs doublets emerging on , the mass matrices of
the zero-mode fermions can be written in the Gaussian textures by choosing
appropriate configurations of vacuum expectation values of the Higgs fields.
When such Gaussian textures of mass matrices are realized, we show that all of
the quark profiles, which are mass hierarchies among the quarks, quark mixing
angles, and can be simultaneously realized.Comment: 24 pages, 21 figures, 4 tables (v2, published version from JHEP
Flavor landscape of 10D SYM theory with magnetized extra dimensions
We study the flavor landscape of particle physics models based on a
ten-dimensional super Yang-Mills theory compactified on magnetized tori
preserving four-dimensional supersymmetry. Recently, we
constructed a semi-realistic model which contains the minimal supersymmetric
standard model (MSSM) using an Ansatz of magnetic fluxes and orbifolding
projections. However, we can consider more various configurations of magnetic
fluxes and orbifolding projections preserving four-dimensional
supersymmetry. We research systematically such possibilities for leading to
MSSM-like models and study their phenomenological aspects.Comment: 24 pages, 3 figures. arXiv admin note: text overlap with
arXiv:1211.431
DOES SIDE OF AMPUTATION AFFECT 200- AND 400-M RACE TIME IN SPRINTERS USING RUNNING-SPECIFIC PROSTHESES?
Current Paralympic guidelines for track events are generally based on level of amputation, not side of amputation. Since 200- and 400-m sprint races are performed in a counter clockwise direction, the effects of amputations side on sprint race performance in athletes with unilateral lower limb amputation should be investigated. Forty-five unilateral transtibial amputees participating in elite-level 200- and 400-m races were analysed from publicly available Internet broadcasts. For each athlete, official race time, and amputation side were determined. We found no significant difference in official race time between left and right side amputees during the 200- and 400-m sprint, indicating that sprint performance on a standard track in amputee athletes is not affected by amputation side
Osborn Waves: History and Significance
The Osborn wave is a deflection with a dome or hump configuration occurring at the R-ST junction (J point) on the ECG (Fig. 1). In the historical view, different names have been used for this wave in the medical literature, such as “camel-hump sign”, “late delta wave”, “hathook junction”, “hypothermic wave”, “J point wave”, “K wave”, “H wave” and “current of injury”.1 Although there is no definite consensus about terminology of this wave, either “Osborn wave” or “J wave” are the most commonly used names for this wave in the current clinical and experimental cardiology. The Osborn wave can be generally observed in hypothermic patients,1,2,3,4 however, other conditions have been reported to cause Osborn waves, such as hypercalcemia,5 brain injury,6 subarachnoid hemorrhage,7 cardiopulmonary arrest from oversedation,8 vasospastic angina,9 or idiopathic ventricular fibrillation.10,11,12 Our knowledge about the link between the Osborn waves and cardiac arrhythmias remains sparse and the arrhythmogenic potential of the Osborn waves is not fully understood. In this paper, we present a historic review of Osborn waves and discuss their clinical significance in the various clinical settings
- …