Kiel, Ewald / Kahlert, Joachim / Haag, Ludwig / Eberle, Thomas (Hrsg.): Herausfordernde Situationen in der Schule, Ein fallbasiertes Arbeitsbuch. Bad Heilbrunn: Klinkhardt 2011 [...] [Sammelrezension]

Sammelrezension von: 1. Kiel, Ewald / Kahlert, Joachim / Haag, Ludwig / Eberle, Thomas (Hrsg.): Herausfordernde Situationen in der Schule, Ein fallbasiertes Arbeitsbuch, Bad Heilbrunn: Klinkhardt 2011 (224 S.; ISBN 978-3-7815-1799-8) 2. Kiel, Ewald / Pollak, Guido (Hrsg.): Kritische Situationen im Referendariat bewältigen, Ein Arbeitsbuch für angehende Lehrkräfte, Bad Heilbrunn: Klinkhardt 2011 (271 S.; ISBN 978-3-8252-3544-4)

Elliptisten käyrien kryptosysteemit: Weierstrassin, Hessen ja Edwardsin käyrien vertailua

Elliptisten käyrien salakirjoitusjärjestelmät (ECC) ovat julkisen avaimen salakirjoitusjärjestelmiä, jotka perustuvat elliptisen käyrän pisteiden muodostamaan ryhmään. Ne ovat tällä hetkellä suuren mielenkiinnon kohteina, sillä perinteisesti käytössä olevan RSA-salausalgoritmin avainten pituudet ovat alkaneet kasvaa epäkäytännöllisen pitkiksi. Elliptisten käyrien järjestelmillä on mahdollista päästä 160 bitin avaimenpituudella vastaavan tasoiseen turvallisuuteen kuin 1024-bittisellä RSA-salausavaimella. Elliptisiin käyriin perustuvilla järjestelmillä on kuitenkin ollut omat ongelmansa yhtenäisyyden kanssa. Tämä on aiheuttanut haasteita salausjärjestelmän rakentamisessa ja saattanut vuotaa sivukanavatietoa. Määrittelemällä käytettävä elliptinen käyrä sopivasti näitä ongelmia on kuitenkin mahdollista välttää. Lisähyötynä voidaan saavuttaa nopeampi laskenta tinkimättä turvallisuudesta. Tässä työssä esitellään elliptisistä käyristä Weierstrassin normaalimuoto, Hessen käyrä, Edwardsin käyrä sekä binääriset Weierstrassin ja Edwardsin käyrät. Kaikille käyrille määritellään pisteiden yhteenlasku sekä esitetään käyräkohtaista tietoa niiden tehokkuudesta laskennassa.

Die Solling-Folge (Mittlerer Buntsandstein) im Grenzgebiet Niedersachsen - Thüringen - Hessen

This paper deals with the lithostratigraphic structure of the Solling sequence (Lower Triassic, Middle Buntsandstein) in the area between the Weser river region in the west and the Thuringian Eichsfeld region in the east. Lithologic profile mapping and the gamma-ray logs of several boreholes and 40 exposures have been used to define the lithostratigraphic Classification of the Solling sequence, to mark the facies zones and to find the connection between Sediments of the Thuringian basin in the east and the Weser fault trough via the crest of the Eichsfeld-Altmark Ridge. Tectonically controlled movements of synsedimentary character are the reason for the extreme convergence within the Solling sequence and the extreme Stratigraphie gap at its base (Hardegsen unconformity, Trusheim 1961) in the region of the swells. The discussion also demonstrates the importance of fault bundles active during Triassic and responsible for the thickness pattem of the Solling sequence between the Weser fault trough and the Eichsfeld-Altmark Ridge. The largest Stratigraphie gap is present at the line Brehme (Ohm Mountains) - Beuren - Treffurt where the Solling sequence covers Av/cn/a-bearing layers of the Volpriehausen sequence. In paiticular the Ridge sequences prove the existence of a further erosion unconformity within the Solling sequence (Solling unconformity, Kunz 1965) below the Thuringian Chirotheriensandstein as found by Rohling (1986) in the North German basin at the Stratigraphie level of the Karlshafen layers.

Ludwig Fertig: Vor-Leben. Bekenntnis und Erziehung bei Thomas Mann. Darmstadt: Wissenschaftliche Buchgesellschaft 1994 [Rezension]

Rezension von: Ludwig Fertig: Vor-Leben. Bekenntnis und Erziehung bei Thomas Mann. Darmstadt: Wissenschaftliche Buchgesellschaft 1994, 312 S.

Wilhelm von Humboldt: Briefe an Friedrich August Wolf. Textkritisch herausgegeben und kommentiert von Philip Mattson. Berlin/New York: Walter de Gruyter 1990 [...] [Sammelrezension]

Sammelrezension von: 1. Wilhelm von Humboldt: Briefe an Friedrich August Wolf. Textkritisch herausgegeben und kommentiert von Philip Mattson. Berlin/New York: Walter de Gruyter 1990 635 S. 2. Italien im Bannkreis Napoleons. Die römischen Gesandtschaftsberichte Wilhelm von Humboldts an den Landgraf I Großherzog von Hessen-Darmstadt 1803-1809. Bearbeitet von Eva-Maria Feldschow und Ulrich Hussong. Herausgegeben von Eckhart G. Franz. Darmstadt: Hessische Historische Kommission 1989, 459 S.

Ludwig Liegle: Frühpädagogik. Erziehung und Bildung kleiner Kinder. Ein dialogischer Ansatz. Stuttgart: Kohlhammer 2013 (172 S.) [Rezension]

Rezension von: Ludwig Liegle: Frühpädagogik. Erziehung und Bildung kleiner Kinder. Ein dialogischer Ansatz. Stuttgart: Kohlhammer 2013 (172 S.; ISBN 978-3-17-022480-3)

Christliche antike; einführung in die altchristliche kunst,

Bibliographical foot-notes.

Revisión del uso de los medicamentos biosimilares vs. biológicos: implicaciones para la salud en Colombia.

Este documento tiene como objetivo describir las implicaciones para la salud con el uso de medicamentos biosimilares en comparación con los medicamentos biológicos en Colombia. Así mismo, describir el contexto normativo acerca del uso de medicamentos biosimilares, las recomendaciones y lineamientos sobre seguridad y efectividad del uso de medicamentos Biosimilares y Biológicos, partiendo de sus diferencias biomoleculares. Para esto, se desarrolló una revisión documental electrónica y manual de la literatura en bases de datos, revistas y libros limitada a términos MeSH. La selección de los artículos incluyo documentos completos publicados en revistas indexadas de los últimos 10 años, en español e inglés; la información recolectada se organizó para la construcción del presente documento. Concluyendo, se encontró que las patentes de muchos medicamentos biológicos han vencido o están próximas a caducar y varios biosimilares están desarrollándose y comercializándose incluso en países sin regulaciones estrictas. Los biosimilares nunca podrán ser iguales al original por su complejidad molecular, por ello debemos integrarlos a los sistemas de farmacovigilancia mejorando trazabilidad e identificando su origen mientras se establecen denominaciones comunes distinguibles. La evidencia actual sugiere que la regulación de medicamentos biosimilares debe ser evaluada y armonizada en todo el mundo.

Beam-energy Dependence Of The Directed Flow Of Protons, Antiprotons, And Pions In Au+au Collisions.

Rapidity-odd directed flow (v1) measurements for charged pions, protons, and antiprotons near midrapidity (y=0) are reported in sNN=7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV Au+Au collisions as recorded by the STAR detector at the Relativistic Heavy Ion Collider. At intermediate impact parameters, the proton and net-proton slope parameter dv1/dy|y=0 shows a minimum between 11.5 and 19.6 GeV. In addition, the net-proton dv1/dy|y=0 changes sign twice between 7.7 and 39 GeV. The proton and net-proton results qualitatively resemble predictions of a hydrodynamic model with a first-order phase transition from hadronic matter to deconfined matter, and differ from hadronic transport calculations.

Dielectron Mass Spectra From Au+au Collisions At √[s(nn)]=200 gev.

We report the STAR measurements of dielectron (e(+)e(-)) production at midrapidity (|y(ee)|<1) in Au+Au collisions at √[s(NN)]=200  GeV. The measurements are evaluated in different invariant mass regions with a focus on 0.30-0.76 (ρ-like), 0.76-0.80 (ω-like), and 0.98-1.05 (ϕ-like)   GeV/c(2). The spectrum in the ω-like and ϕ-like regions can be well described by the hadronic cocktail simulation. In the ρ-like region, however, the vacuum ρ spectral function cannot describe the shape of the dielectron excess. In this range, an enhancement of 1.77±0.11(stat)±0.24(syst)±0.33(cocktail) is determined with respect to the hadronic cocktail simulation that excludes the ρ meson. The excess yield in the ρ-like region increases with the number of collision participants faster than the ω and ϕ yields. Theoretical models with broadened ρ contributions through interactions with constituents in the hot QCD medium provide a consistent description of the dilepton mass spectra for the measurement presented here and the earlier data at the Super Proton Synchrotron energies.

Beam-energy Dependence Of Charge Separation Along The Magnetic Field In Au+au Collisions At Rhic.

Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.

Measurement Of Longitudinal Spin Asymmetries For Weak Boson Production In Polarized Proton-proton Collisions At Rhic.

We report measurements of single- and double-spin asymmetries for W^{±} and Z/γ^{*} boson production in longitudinally polarized p+p collisions at sqrt[s]=510  GeV by the STAR experiment at RHIC. The asymmetries for W^{±} were measured as a function of the decay lepton pseudorapidity, which provides a theoretically clean probe of the proton's polarized quark distributions at the scale of the W mass. The results are compared to theoretical predictions, constrained by polarized deep inelastic scattering measurements, and show a preference for a sizable, positive up antiquark polarization in the range 0.05