Experimental study of the two-proton correlated emission from the excited states of Ne-17,Ne-18 and S-28,S-29

A series of experiments have been performed by complete kinematics measurements to study two-proton (2p) correlated emission from the excited states of Ne-17,Ne-18 and S-28,S-29 via the Coulomb excitation by bombarding on Au-197 target. 2p and residua coincident events were picked Out under strict conditions. Visible p-p correlations were observed. It is shown that 2p can be emitted from the high-lying excited states. 2p halo may lead to 2p emission with large spectroscopy factor for the states close to or beyond the threshold.

Measurement of the inelastic branch of the stellar O-14(alpha,p)F-17 reaction occurring in the explosive burning in Novae and X-ray busters

The inelastic component of the key astrophysical resonance (1(-), E-x=6.15 MeV) in the O-14(alpha,p)F-17 reaction has been studied by using the resonant scattering of F-17+p. The experiment was done at REX-ISOLDE CERN with the Miniball setup. The thick target method in inverse kinematics was utilized in the present experiment where a 44.2 MeV F-17 beam bombarded a similar to 40 mu m thick (CH2)(n) target. The inelastic scattering protons in coincidence with the de-excited 495 keV gamma rays have been clearly seen and they are from the inelastic branch to the first excited state in F-17 following decay of the 1(-) resonance in Ne-18. Some preliminary results are reported.

Caracterização petrográfica estrutural e metamorfica das rochas da região de Indiara (GO)

The region Indiara (GO) is located in southwestern of São Francisco Craton in the Internal Zone of the Brasília Belt, western part of the Tocantins Province. In this locality outcrop rocks of the Goiás Magmatic Arc. These rocks are muscovite gneiss with biotite, muscovite-biotite gneiss, biotite gneiss with muscovite and garnet, biotite-muscovite gneiss, muscovite porfiroclastic gneiss, biotite porfiroclastic gneiss, muscovite-quartz schists, garnetquartz schists, and metamafic rock (hornblende schists) as metric or kilometric lenses. The gneisses have granodioritic composition, granoblastic texture, with some portions with lepidoblastic texture, constituting a discontinuous centimeter to millimeter banding; the structure is anisotropic, marked by the preferred orientation of all the minerals. These gneisses are leucocratic, generally are inequigranular and fine to medium grained. The hornblende schists have nematoblastic texture, are inequigranular and fine to medium grained and have anisotropic structure that is given by a foliation, marked by a strong preferential orientation of the crystals of amphibole and other minerals present in the rock. The gneisses of the area are composed of plagioclase (oligoclase/andesine), quartz, microcline, muscovite, biotite, epidote, apatite, zircon, garnet, kyanite, oxides and hydroxides of iron and opaque minerals. And the metamafic rocks of Indiara region are composed mainly of amphibole, plagioclase (oligoclase/andesine), quartz, titanite, biotite, allanite, garnet, oxides and hydroxides of iron, apatite, epidote, rutile, muscovite and opaque minerals. At least three phases of deformation were observed in the rocks of area of study (Dn-1, Dn and Dn +1). The Dn phase and represented by a well-marked foliation Sn having low dip angle (average dip of 20 °) and dip direction to SW (210/21) and to NE (18/20); the Dn-1 phase is represented by a compositional banding (Sn- 1), this banding is generally...

~(17)F和~(18)Ne与质子的弹性散射角分布

采用逆运动学方法对放射性核束17F和18Ne与质子进行弹性散射实验 ,得到了实验测量微分截面 .用较准确描述放射性核素性质的CH89参数化的光学势为初始光学势 ,用扭曲波玻恩近似的理论计算程序DWUCK4和自动参数搜索程序ABOD对实验数据进行光学势参数理论拟合 ,得到了与实验数据相符合的光学势参数 .将得到的光学势参数进行分析 ,得到了17F和18Ne实势相互作用均方根半径分别为 3 2 3 9fm和 3 3 1 7fm .

Experimental investigation of the reactions 25 Mg(alpha,n)28 Si, 26 Mg(alpha,n)29 Si, 18 O(alpha,n)21 Ne and their impact on stellar nucleosynthesis

In der vorliegenden Dissertation werden die Kernreaktionen 25Mg(alpha,n)28Si, 26Mg(alpha,n)29Si und 18O(alpha,n)21Ne im astrophysikalisch interessanten Energiebereich von E alpha = 1000 keV bis E alpha = 2450 keV untersucht.rnrnDie Experimente wurden am Nuclear Structure Laboratory der University of Notre Dame (USA) mit dem vor Ort befindlichen Van-de-Graaff Beschleuniger KN durchgeführt. Hierbei wurden Festkörpertargets mit evaporiertem Magnesium oder anodisiertem Sauerstoff mit alpha-Teilchen beschossen und die freigesetzten Neutronen untersucht. Zum Nachweis der freigesetzten Neutronen wurde mit Hilfe von Computersimulationen ein Neutrondetektor basierend auf rn3He-Zählrohren konstruiert. Weiterhin wurden aufgrund des verstärkten Auftretens von Hintergrundreaktionen verschiedene Methoden zur Datenanalyse angewendet.rnrnAbschliessend wird mit Hilfe von Netzwerkrechnungen der Einfluss der Reaktionen 25Mg(alpha,n)28Si, 26Mg(alpha,n)29Si und 18O(alpha,n)21Ne auf die stellare Nukleosynthese untersucht.rn

Les deux programmes de 1789 : programme national de réforme manifesté par les cahiers des États généraux : programme de la révolution arrêté par Mirabeau dévoilé par Chamfort : règne de l'aristocratie de Paris depuis le 27 juin 1789 : avénement de la démagogie parisienne le 18 mars 1871 /

Mode of access: Internet.

Elogio ne'funerali di Ferdinando I, re del regno delle due Sicilie, celerrati nella chiesa del Purgatorio ad arco nel dì 18 febrajo /

Mode of access: Internet.

Part I: Total yield measurements for the ^(21)Ne(α,n)^)(24)Mg reaction. Part II: A study of the ^(12)C(He,p)^(14)N reaction

PART I

The total cross-section for the reaction ²¹Ne(α, n)²⁴Mg has been measured in the energy range 1.49 Mev ≤ E_cm ≤ 2.6 Mev. The cross-section factor, S(O), for this reaction has been determined, by means of an optical model calculation, to be in the range 1.52 x 10¹² mb-Mev to 2.67 x 10¹² mb-Mev, for interaction radii in the range 5.0 fm to 6.6 fm. With S(O) ≈ 2 x 10¹² mb-Mev, the reaction ²¹Ne(α, n)²⁴Mg can produce a large enough neutron flux to be a significant astrophysical source of neutrons.

PART II

The reaction¹²C(³He, p)¹⁴N has been studied over the energy range 12 Mev ≤ E_lab ≤ 18 Mev. Angular distributions of the proton groups leading to the lowest seven levels in ¹⁴N were obtained.

Distorted wave calculations, based on two-nucleon transfer theory, were performed, and were found to be reliable for obtaining the value of the orbital angular momentum transferred. The present work shows that such calculations do not yield unambiguous values for the spectroscopic factors.

云南18 个民族Y染色体双等位基因单倍型频率的主成分分析

世居云南的少数民族中,壮、傣、水、布依、布朗、德昂、佤、彝、白、怒、哈尼、傈僳、拉祜、纳西、景颇、阿昌、基 诺和独龙18 个民族是由“羌”、“濮”、“越”3 大部落群体演化而来,是云南的土著居民。利用PCR2RFL P 方法对这18 个土著民族进行Y染色体上13 个双等位基因位点进行基因分型。结果显示,不同历史族源的民族群体在Y染 色体双等位基因单倍型分布上具有一定的差异:在百越后裔民族群体中以单倍型H11 、H12 为主要分布;在氐羌后 裔民族中以单倍型H5 、H6 和H8 为主要分布;在百濮后裔民族群体中主要单倍型分布为H6 、H8 和H11 。进一步 主成分分析表明,百越后裔民族群体和氐羌后裔民族在主成分图上聚为两组,提示父系基因库有不同的来源,与历 史记载相印证。

O Ne bis in idem no Espaço de Liberdade, Segurança e Justiça e no Direito Europeu da Concorrência

Ne bis in idem, understood as a procedural guarantee in the EU assumes different features in the AFSJ and in european competition law. Despite having a common origin (being, in both sectors the result of the case law of the same jurisdictional organ) its components are quite distintic in each area of the integration. In the AFSJ, the content of bis and idem are broader and addressed at a larger protection of individuals. Its axiological ground is based on the freedom of movements and human dignity, whereas in european competition law its closely linked to defence rights of legal persons and the concept of criminal punishment of anticompetitive sanctions as interpreted by the ECHR´s jurisprudence. In european competition law, ne bis in idem is limited by the systemic framework of competition law and the need to ensure parallel application of both european and national laws. Nonetheless, the absence of a compulsory mechanism to allocate jurisdiction in the EU (both in the AFSJ and in the field of anti-trust law) demands a common axiological framework. In this context, ne bis in idem must be understood as a defence right based on equity and proportionality. As far as its international dimension is concerned, ne bis in idem also lacks an erga omnes effect and it is not considered to be a rule of ius cogens. Consequently, the model which the ECJ has built regarding the application of the ne bis in idem in transnational and supranational contexts should be replicated by other courts through cross fertilization, in order to internationalize that procedural guarantee and broaden its scope of application.

Lady Geddes [née Isabella Gamble Ross], femme de l'ambassadeur anglais à Washington : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 58323

Miss [Arthur] Hamilton [née Violet Antonia Fairlie-Cuninghame] (cliché C.N. Londres) [nageuse de longues distances] : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59246

Miss Arthur Hamilton [née Violet Antonia Fairlie-Cuninghame] qui doit tenter la traversée de la Manche [à la nage, essai en septembre 1920] (cliché C. News Londres) : [photographie de presse] / [Agence Rol]

Référence bibliographique : Rol, 59247