Generalised Thurston-Bennequin invariants for real algebraic surface singularities

A generalised Thurston-Bennequin invariant for a Q-singularity of a real algebraic variety is defined as a linking form on the homologies of the real link of the singularity. The main goal of this paper is to present a method to calculate the linking form in terms of the very good resolution graph of a real normal unibranch surface singularity. For such singularities, the value of the linking form is the Thurston-Bennequin number of the real link of the singularity. As a special case of unibranch surface singularities, the behaviour of the linking form is investigated on the Brieskorn double points x^m+y^n\pm z^2=0.Comment: 22 pages, TeX, 12 figure

Corporate Tax Policy, Entrepreneurship and Incorporation in the EU

In Europe, declining corporate tax rates have come along with rising tax-to-GDP ratios. This paper explores to what extent income shifting from the personal to the corporate tax base can explain these diverging developments. We exploit a panel of European data on firm births and legal form of business to analyze income shifting via increased entrepreneurship and incorporation. The results suggest that lower corporate taxes exert an ambiguous effect on entrepreneurship. The effect on incorporation is significant and large. It implies that the revenue effects of lower corporate tax rates – possibly induced by tax competition -- partly show up in lower personal tax revenues rather than lower corporate tax revenues. Simulations suggest that between 10% and 17% of corporate tax revenue can be attributed to income shifting. Income shifting is found to have raised the corporate tax-to-GDP ratio by some 0.2%-points since the early 1990s

A Study on the works of head nurse assistants in Niigata prefectural hospitals

新潟県内病院の婦長補佐業務内容について,現場で実践している業務内容を分析した.対象は新潟県内において婦長補佐業務を行っている看護婦404名であった.この結果,補佐歴,夜勤日数,医師および看護補助員数,補佐職の業務規則明記の有無によって婦長補佐業務業は,婦長代行,教育,診療の援助,直接看護のいづれかの業務量が多くなる傾向になることが示唆された.これらの傾向について婦長代行および補佐業務,あるいはチームの一員として看護を実践しながらの補佐業務の,いずれの傾向を主に補佐職へ期待するかを病院・看護部の目標から決定し,病院環境を整え,補佐業務を明記してリーダーシップを有効に発揮させることは,看護の質を向上させることになると考えられる.The purpose of this study was to investigate the works of head nurse assistants in Niigata prefectural hospitals. We studied 404 subjects, who were working of head nurse assistants in Niigata prefec-tural hospitals. The results indicated that they has tendency to actings of head nurses, medical examinations and treatment assistants, educations and nursing, is caused by there history of head nurse asissutants, the day of night works, the member of doctors and nurse's aides, keeping in a rule of the hospital. There tendency were necessary to choice in nursing service admistration. It will be to improvement in nursing that duty of head nurse assistant is got put to right of contents, with authority in a hospital and made good use of the leadership.departmental bulletin pape

Coronary blood flow velocity during percutaneous transluminal coronary angioplasty as a guide for assessment of the functional result

To investigate the clinical usefulness of intracoronary Doppler recordings during percutaneous transluminal coronary angioplasty (PTCA), the changes of intracoronary blood flow velocity during PTCA were assessed in 20 patients with single proximal coronary stenosis, using a Doppler probe end-mounted on the tip of a PTCA catheter. A mean of 4 inflations was performed in each patient. Intracoronary velocities were measured before and after each inflation and during peak reactive hyperemia after each transluminal occlusion. Quantitative analysis of the coronary stenosis was assessed before and after PTCA, and the dilatation resulted in an increase in minimal luminal cross-sectional area from 1.1 +/- 0.8 to 2.7 +/- 1.2 mm2. A gradual and significant improvement in velocities was obser

The VIMOS VLT Deep Survey - First epoch VVDS-Deep survey: 11564 spectra with 17.5<=IAB<=24, and the redshift distribution over 0< z <=5

This paper presents the ``First Epoch'' sample from the VIMOS VLT Deep Survey (VVDS). The VVDS goals, observations, data reduction with VIPGI, and redshift measurement with KBRED are discussed. Data have been obtained with the VIsible Multi Object Spectrograph (VIMOS) on the ESO-VLT UT3, allowing to observe ~600 slits simultaneously at R~230. A total of 11564 objects have been observed in the VVDS-02h and VVDS-CDFS Deep fields over a total area of 0.61deg^2, selected solely on the basis of apparent magnitude 17.5 <=I_{AB} <=24. The VVDS covers the redshift range 0 < z <= 5. It is successfully going through the ``redshift desert'' 1.5<z<2.2, while the range 2.2<z<2.7 remains of difficult access because of the VVDS wavelength coverage.A total of 9677 galaxies have a redshift measurement, 836 are stars, 90 are AGNs, and a redshift could not be measured for 961 objects. There are 1065 galaxies with a measured redshift z>1.4. The survey reaches a redshift measurement completeness of 78% overall (93% including less reliable objects), with a spatial sampling of the population of galaxies of 25% and ~30% in the VVDS-02h and VVDS-CDFS. The redshift accuracy measured from repeated observations with VIMOS and comparison to other surveys is ~276km/s. From this sample we present for the first time the redshift distribution of a magnitude limited spectroscopic sample down to IAB=24. The redshift distribution has a median of z=0.62, z=0.65, z=0.70, and z=0.76, for magnitude limited samples with IAB<=22.5, 23, 23.5, and 24. A high redshift tail above redshift 2 and up to redshift 5 becomes readily apparent for IAB>23.5, probing the bright star forming population of galaxies. This sample provides an unprecedented dataset to study galaxy evolution over 90% of the life of the universeComment: 30 pages, accepted 22-Feb-05 in A&

The Greek suffix -&#953;&#957;&#948;&#945; within the Micro-Asiatic multilingual context

The Greek suffix -\u3b9\u3bd\u3b4\u3b1, which characterises adverbs denoting games (such as \u3b2\u3b1\u3c3\u3b9\u3bb\u3af\u3bd\u3b4\u3b1 \u201cking of the castle\u201d, \u3ba\u3c1\u3c5\u3c0\u3c4\u3af\u3bd\u3b4\u3b1 \u201chide and seek\u201d, on these adverbs see Ded\ue8 2016), has a phonological shape difficult to explain within Greek and Indo-European phonology, as already observed by Pierre Chantraine (1933:277): \u201cl\u2019origine de ces adverbes est claire, mais le suffixe qui s\u2019y trouve impliqu\ue9 presente une structure singuli\ue8re. Aucune analyse ne permet d\u2019expliquer le groupe -\u3bd\u3b4-\u201d. In the same context Chantraine, also quoting a statement by Herodotus, suggested that the suffix has its ultimate origin in Asia Minor, particularly in Lydia. A fact which deserves consideration, although it is in itself not enough to demonstrate the Asiatic origin of the suffix, is the presence in the area of several place names ending in -\u3b9\u3bd\u3b4\u3b1 (e.g. \u3a0\u3b9\u3b3\u3af\u3bd\u3b4\u3b1 in Caria, \u3a3\u3af\u3bd\u3b4\u3b1 in Pisidia). Another element, which encourages to elaborate on this perspective is the hypothesis \u2013 in our view correct \u2013 recently put forth by Paola Dardano (2011), according to which the suffix -\u3af\u3b4\u1fb1\u3c2, which in the Homeric poems forms patronymics and is later refunctionalised as a suffix for deriving proper names, would have entered Greek via the Lydian language. In my talk I will take into account and discuss the hypothesis of a Micro-Asiatic origin of the suffix -\u3b9\u3bd\u3b4\u3b1, evaluating its position within the context of linguistic contact between Greek and the languages of Asia Minor

A Method Based on a Nonlinear Generalized Heisenberg Algebra to Study the Molecular Vibrational Spectrum

We propose a method, based on a Generalized Heisenberg Algebra (GHA), to reproduce the anharmonic spectrum of diatomic molecules. The theoretical spectrum generated by GHA allows us to fit the experimental data and to obtain the dissociation energy for the carbon monoxide molecule. Our outcomes are more accurate than the standard models used to study molecular vibrations, namely the Morse and the $q$-oscillator models and comparable to the perturbed Morse model proposed by Huffaker \cite{hf}, for the first experimental levels. The dissociation energy obtained here is more accurate than all previous models

Nuclear Effects in Deep Inelastic Scattering of Charged-Current Neutrino off Nuclear

Nuclear effect in the neutrino-nucleus charged-Current inelastic scattering process is studied by analyzing the CCFR and NuTeV data. Structure functions $F_2(x,Q^2)$ and $xF_3(x,Q^2)$ as well as differential cross sections are calculated by using CTEQ parton distribution functions and EKRS and HKN nuclear parton distribution functions, and compared with the CCFR and NuTeV data. It is found that the corrections of nuclear effect to the differential cross section for the charged-current anti-neutrino scattering on nucleus are negligible, the EMC effect exists in the neutrino structure function $F_2(x,Q^2)$ in the large $x$ region, the shadowing and anti-shadowing effect occurs in the distribution functions of valence quarks in the small and medium $x$ region,respectively. It is also found that shadowing effects on $F_2(x,Q^2)$ in the small $x$ region in the neutrino-nucleus and the charged-lepton-nucleus deep inelastic scattering processes are different. It is clear that the neutrino-nucleus deep inelastic scattering data should further be employed in restricting nuclear parton distributions.Comment: 24 pages, 5 figure