다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

https://biblio.ugent.be/publication/685594/file/1130605.pdf

Review of Particle Physics

Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

http://cds.cern.ch/record/147992/files/198312192.pdf

Chiral perturbation theory to one loop

Relativistic dynamics on a null plane

Goldstone boson related finite size effects in field theory and critical phenomena with O(N) symmetry

The construction of the effective Lagrangian relevant for the mesonic sector of QCD in the large $N_c$
 limit meets with a few rather subtle problems. We thoroughly examine these and show that, if the variables of the effective theory are chosen suitably, the known large $N_c$
 counting rules of QCD can unambiguously be translated into corresponding counting rules for the effective coupling constants. As an application, we demonstrate that the Kaplan–Manohar transformation is in conflict with these rules and is suppressed to all orders in $1/N_c$
 . The anomalous dimension of the axial singlet current generates an additional complication: The corresponding external field undergoes nonmultiplicative renormalization. As a consequence, the Wess–Zumino–Witten term, which accounts for the U(3)
 $_{\mathrm{R}}\times $
 U(3)
 $_{\mathrm L}$
 anomalies in the framework of the effective theory, contains pieces that depend on the running scale of QCD. The effect only shows up at nonleading order in $1/N_c$
 , but requires specific unnatural parity contributions in the effective Lagrangian that restore renormalization group invariance.

Large $N_ c$ in chiral perturbation theory

We discuss the theoretical problems encountered in the standard evaluations of the Cabibbo angle and show that the data onKe3 and hyperon decays require |Vus|=0.221±0.002. With this value unitary of the K-M-Matrix predicts |Vud|=0.9753±0.0005. The ratio of pseudoscalar decay constants is found to beFK/Fπ=1.22±0.01.

/pdf/determination-of-the-elements-v-us-and-v-ud-of-the-kobayashi-1yfp0x3751.pdf

Heinrich Leutwyler

Papers

Relativistic dynamics on a null plane

Goldstone boson related finite size effects in field theory and critical phenomena with O(N) symmetry

Large $N_ c$ in chiral perturbation theory

Determination of the Elements V(us) and V(ud) of the Kobayashi-Maskawa Matrix

Spontaneously broken symmetries: Effective lagrangians at finite volume