Two-phonon 1- state in 112Sn observed in resonant photon scattering

Results of a photon scattering experiment on 112Sn using bremsstrahlung with an endpoint energy of E_0 = 3.8 MeV are reported. A J = 1 state at E_x = 3434(1) keV has been excited. Its decay width into the ground state amounts to Gamma_0 = 151(17) meV, making it a candidate for a [2+ x 3-]1- two-phonon state. The results for 112Sn are compared with quasiparticle-phonon model calculations as well as the systematics of the lowest-lying 1- states established in other even-mass tin isotopes. Contrary to findings in the heavier stable even-mass Sn isotopes, no 2+ states between 2 and 3.5 MeV excitation energy have been detected in the present experiment.Comment: 10 pages, including 2 figures, Phys. Rev. C, in pres

Low-lying quadrupole collective states of the light and medium Xenon isotopes

Collective low lying levels of light and medium Xenon isotopes are deduced from the Generalized Bohr Hamiltonian (GBH). The microscopic seven functions entering into the GBH are built from a deformed mean field of the Woods-Saxon type. Theoretical spectra are found to be close to the ones of the experimental data taking into account that the calculations are completely microscopic, that is to say, without any fitting of parameters.Comment: 8 pages, 4 figures, 1 tabl

Joint Practice Guidelines for Radionuclide Lymphoscintigraphy for Sentinel Node Localization in Oral/Oropharyngeal Squamous Cell Carcinoma

Involvement of the cervical lymph nodes is the most important prognostic factor for patients with oral/oropharyngeal squamous cell carcinoma (OSCC), and the decision of whether to electively treat patients with clinically negative necks remains a controversial topic. Sentinel node biopsy (SNB) provides a minimally invasive method for determining the disease status of the cervical node basin, without the need for a formal neck dissection. This technique potentially improves the accuracy of histologic nodal staging and avoids overtreating three-quarters of this patient population, minimizing associated morbidity. The technique has been validated for patients with OSCC, and larger-scale studies are in progress to determine its exact role in the management of this patient population. This document is designed to outline the current best practice guidelines for the provision of SNB in patients with early-stage OSCC, and to provide a framework for the currently evolving recommendations for its use. Preparation of this guideline was carried out by a multidisciplinary surgical/nuclear medicine/pathology expert panel under the joint auspices of the European Association of Nuclear Medicine (EANM) Oncology Committee and the Sentinel European Node Trial (SENT) Committee

Joint practice guidelines for radionuclide lymphoscintigraphy for sentinel node localization in oral/oropharyngeal squamous cell carcinoma

Involvement of the cervical lymph nodes is the most important prognostic factor for patients with oral/oropharyngeal squamous cell carcinoma (OSCC), and the decision whether to electively treat patients with clinically negative necks remains a controversial topic. Sentinel node biopsy (SNB) provides a minimally invasive method of determining the disease status of the cervical node basin, without the need for a formal neck dissection. This technique potentially improves the accuracy of histological nodal staging and avoids over-treating three-quarters of this patient population, minimizing associated morbidity. The technique has been validated for patients with OSCC, and larger-scale studies are in progress to determine its exact role in the management of this patient population. This article was designed to outline the current best practice guidelines for the provision of SNB in patients with early-stage OSCC, and to provide a framework for the currently evolving recommendations for its use. These guidelines were prepared by a multidisciplinary surgical/nuclear medicine/pathology expert panel under the joint auspices of the European Association of Nuclear Medicine (EANM) Oncology Committee and the Sentinel European Node Trial Committee

Flexibilität in der Produktion kleiner und mittelständischer Unternehmen

Flexibilität ist - neben der Produktqualität - das wichtigste Kriterium, um sich von Wettbewerbern zu differenzieren und Kostennachteile zu kompensieren. Mehr als ein Viertel der deutschen Unternehmen setzt im Wettbewerb auf den Faktor Flexibilität. Den Kunden individuelle Lösungen anzubieten oder schnell und termintreu liefern zu können, ist damit für viele Firmen das oberste Ziel. Zu diesem Ergebnis kommen Analysen einer aktuellen Untersuchung deutscher Unternehmen

Change Management in der Produktion - Flexibilisierungspotenziale nutzen

In der deutschen Automobilindustrie wird zur Realisierung von Rationalisierungspotenzialen die Komplexität der Arbeitsinhalte je Arbeitsplatz und Arbeitsperson reduziert (Haweanek, 2008). So ist nach Ansicht der Produktionsplaner die "perfekte Automobilproduktion" gekennzeichnet durch eine extrem kurze Taktzeit, in der eine Arbeitsperson nur wenige Handgriffe auszuführen hat (Haweanek, 2008). Insbesondere Ältere sind hierdurch einer hohen Beanspruchung ausgesetzt. Flexibilisierungsstrategien für das produzierende Umfeld, wie sie einst - in Form von autonomer Gruppenarbeit - Einzug in die europäischen und amerikanischen Fabriken fanden, erscheinen angesichts des Kostendrucks und des verstärkten Einsatzes von angelernten Leiharbeitnehmern heute überholt