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

비만아 부모의 돌봄 경험: q 방법론

16 paginas, 3 figuras, 2 tablas.-- Edited by M. Jamin, O. Nachtmann, G. Domokos, S. Kovesi-Domokos.-- Comunicacion presentada al 20o Johns Hopkins Workshop: Non Perturbative Particle Theory &
Experimental Tests (Heidelberg, 27–29 June 1996).-- arXiv:hep-ph/9701305v1

/pdf/qcd-tests-from-tau-decays-55ji6qa61q.pdf

QCD Tests from Tau Decays

We review the current status of the determination of the strong coupling from tau decay. Using the most recent release of the ALEPH data, a very comprehensive phenomenological analysis has been performed, exploring all strategies previously considered in the literature and several complementary approaches. Once their actual uncertainties are properly assessed, the results from all adopted methodologies are in excellent agreement, leading to a very robust and reliable value of the strong coupling, $\alpha_s^{(n_f=3)}(m_\tau^2) = 0.328\pm 0.013$, which implies $\alpha_s^{(n_f=5)}(M_Z^2) = 0.1197\pm 0.0015$.

Tau-decay determination of the strong coupling

The four-loop determination of the strong coupling from fully inclusive observables is reviewed. Special attention is given to the low-energy measurement extracted from the hadronic τ decay width. A recent exhaustive analysis of the ALEPH data, exploring several complementary methodologies with very different sensitivities to inverse power corrections and duality violations, confirms the strong suppression of non-perturbative contributions to Rτ . It gives the value αs (mτ 2 ) = 0.328, which implies αs (MZ 2 ) = 0.1197 ± 0.0015. The excellent agreement with the direct measurement at the Z peak, αs (MZ 2 ) = 0.1196 ± 0.0030, provides a beautiful test of asymptotic freedom. Together with the most recent lattice average from FLAG and the NNLO determinations from e + e − , PDFs and collider data quoted by the PDG, these two inclusive determinations imply a world average value αs (MZ 2 ) = 0.1180 ± 0.0010.

/pdf/precision-physics-with-qcd-4vky82hg22.pdf

Precision physics with QCD

The basic ideas and methods of chiral perturbation theory are briefly reviewed. I discuss the recent attempts to build an effective Lagrangian in the resonance region and summarize the known large–NC constraints on the low-energy chiral couplings.

/pdf/present-status-of-chiral-perturbation-theory-25g75ed6rf.pdf

Present Status of Chiral Perturbation Theory

We present a general analysis of SU(3) breaking effects in the semi-inclusive tau hadronic width. The recent ALEPH measurements of the inclusive Cabibbo--suppressed decay width of the tau and several moments of its invariant mass distribution are used to determine the value of the strange quark mass. We obtain, in the MS scheme, m_s(M_\tau^2) = (119\pm 24) MeV to O(\alpha_s^3), which corresponds to m_s (1 GeV^2) = (164 \pm 33) MeV, m_s(4 GeV^2) = (114\pm 23) MeV .

Antonio Pich

Papers

QCD Tests from Tau Decays

Tau-decay determination of the strong coupling

Precision physics with QCD

Present Status of Chiral Perturbation Theory

Strange Quark Mass Determination from Cabibbo-Suppressed Tau Decays