Suchergebnisse

We present photometric redshifts for 1031 X-ray sources in the X-ATLAS field using the machine-learning technique TPZ. X-ATLAS covers 7.1 deg observed with XMM-Newton within the Science Demonstration Phase of the H-ATLAS field, making it one of the largest contiguous areas of the sky with both XMM-Newton and Herschel coverage. All of the sources have available SDSS photometry, while 810 additionally have mid-IR and/or near-IR photometry. A spectroscopic sample of 5157 sources primarily in the XMM/XXL field, but also from several X-ray surveys and the SDSS DR13 redshift catalogue, was used to train the algorithm. Our analysis reveals that the algorithm performs best when the sources are split, based on their optical morphology, into point-like and extended sources. Optical photometry alone is not enough to estimate accurate photometric redshifts, but the results greatly improve when at least mid-IR photometry is added in the training process. In particular, our measurements show that the estimated photometric redshifts for the X-ray sources of the training sample have a normalized absolute median deviation, nmad - 0.06, and a percentage of outliers, - = 10-14%, depending upon whether the sources are extended or point like. Our final catalogue contains photometric redshifts for 933 out of the 1031 X-ray sources with a median redshift of 0.9. ; The research leading to these results has received funding from the European Union's Horizon 2020 Programme under the AHEAD project (grant agreement No. 654215). G.M. acknowledges financial support from the AHEAD project, which is funded by the European Union as Research and Innovation Action under Grant No: 654215. F.J.C. and A.C.R. acknowledge financial support through grant AYA2015-64346-C2-1-P (MINECO/FEDER). A.C.R. also acknowledges financial support by the European Space Agency (ESA) under the PRODEX program. ; Peer Reviewed

These data were collected as part of PushBackLash's Work Package on anti-gender discourses online to analyze anti-gender equality strategies on Twitter/X to develop typologies of mobilization and counterstrategies. This analysis contributes to the creation of a toolkit for online actors in the field. The dataset was collected between July 2023 and December 2023 and contains tweets between 2018 and 2023. The Twitter/X data set consists of approximately 60,000 Tweet IDs from 110 public accounts. First, important pro- and anti-gender equality actors in the European Union were identified. Next, actors who were active on Twitter/X since 2021 or earlier were considered for the data collection. Due to changes implemented by Twitter/X in March 2023 (removal of free access to the X API and strict limitations of number of tweets that can be scraped) the list of identified actors was reduced to the most influential ones based on follower numbers, while simultaneously ensuring that actors from all core countries of the PUSH*BACK*LASH project were included. For each actor we scraped on average ~500 tweets. After scraping tweets from the initial list of actors, new actors were added based on those most-commonly mentioned in the scraped tweets. Data was scraped using the X API V2 and the R package RTwitterV2. In line with the X regulations, the data set only contains Tweet IDs.

Sithole problematises the signifier X, as a marker of the dehumanization of the black subject. He argues that post-1994 South Africa retains the markers of its colonial past, and remains a territory of unfreedom for blacks. He offers a new imagination for a liberatory project through the idea of Azania as a site of true emancipation.

Preliminary Material /Ilya Afanasyev , Juliana Dresvina and Erik Kooper -- The Chronicle and Other Forms of Historical Writing in Byzantium /James Howard-Johnston -- Noting Relations and Tracking Relationships in English Vernacular Chronicles, Late Ninth to Early Twelfth Century /Pauline Stafford -- 'Capitur urbs quae totum cepit orbem': The Fates of the Sack of Rome (410) in Early Medieval Historiography /Eduardo Fabbro -- Perspectives from the Periphery: French Kings and their Chroniclers /Chris Jones -- Fighting with a lytle werode: Alfred's Retinue in the Anglo-Saxon Chronicle /Courtnay Konshuh -- French Citizenship and the Uprisings of 1380–1383 /Guy Lurie -- 'Confundit Omnia': Constructing Treason in the Late Medieval London Chronicles /Roger Nicholson -- Leontios Makhairas's Greek Chronicle of the 'Sweet Land of Cyprus': History of Manuscripts and Intellectual Links /Angel Nicolaou-Konnari -- Bede and the Syriac Chroniclers: Interactions of Subject and Genre in Contemporaneous Historiography /Douglas Whalin -- Review: John Page's 'The Siege of Rouen', edited by Joanna Bellis (Chris Given-Wilson) /Chris Given-Wilson -- The Anglo-Norman Prose Chronicle of Early British Kings or the Abbreviated Prose Brut: Text and Translation /Heather Pagan and Geert De Wilde.

In this short written reflection on the design and making of "Falling: 3 x Girls in Uniform," my 2019 videographic study of three film adaptations of Das Mädchen Manuela, I set out to record some thoughts on how and why my video emerged in its particular display form, and why I would describe it, therefore, as having been composed primarily according to a curatorial, rather than expressive or argumentative, logic.

Introduction: Gen X "brings it" to adulthood / Pamela W. Hollander -- Cobra Kai: Flipping the script and finding intergenerational balance / Jim Deys -- The countercultural legacy of Generation X in Twin Peaks / Damon Franke -- So different yet so similar: Two Black Generation X professors discuss life at the half-century mark / Elwood Watson and Zebulon Vance Miletsky -- The revisionist 3Rs: Revolutionize your revolutions around the sun / Sarah Parker -- The new adult: A media comparison of generation X, millennials, and Generation Z / Lee Okan -- From latchkey kid to granny nanny: How Generation X shaped the Modern Family / Melissa Vosen Callens -- Crimes of trust: Middle-aged Gen Xers in Ozark Marty Rapp -- "I didn't feel a thing": The Generation X trauma and alternative families in My Golden Days / Helena Gurfinkel -- The aging dilemma in Forever: Generation X asks what it means to live / Kellie Deys.

Malcolm X, the famous African American activist, remains a figure of controversy years after his assassination in 1965. This book uses the embattled leader's own words to explore his life, from the early death of his father to his own untimely death. It also examines Malcolm's teachings, which at times countered the civil rights movement of Martin Luther King Jr. This biography uses primary sources to reveal a period of great turbulence and social discontent in the United States

Fragile X syndrome is a common condition resulting from a cytogenetic abnormality in the X chromosome. Mental retardation, characteristic facies, and large testes are some of the most important characteristics of the condition. The relatively high incidence of the syndrome—approximately one per thousand—the high incidence of cardiac anomalies in these individuals, the oral and facial features associated with the condition, and the paucity of reported cases in the dental literature make it particularly interesting to dentistry. Here we report the case of a 12‐year‐old male, including the cytogenetic and cephalometric analyses, presenting with some of the classic features and some features not commonly reported

Dieser Band enthält den Text des Sozialgesetzbuches Erstes Buch – Allgemeiner Teil – (SGB I) und den Text des Sozialgesetzbuches Zehntes Buch – Sozialverwaltungsverfahren und Sozialdatenschutz – (SGB X) – jeweils in der aktuellen Fassung. Ein Stichwortverzeichnis erlaubt das schnelle Auffinden der gesuchten Rechtsbegriffe.

Since May 2017, the x-hub project partners OVGU Magdeburg, University of Vienna, and GESIS dispose of a new repository, called x-econ (https://x-econ.org). The service is dedicated to all experimental economics research projectsto disseminate user-friendly archiving and provision of experimental economics research data. The repository x-econ contains all necessary core functionalities of a modern repository and is in a continuous optimization process aiming at functionality enhancement and improvement. x-econ is also one pillar of the multidisciplinary repository x-science (https://x-science.org). The present documentation, which is primarily based on the GESIS Technical Reports on datorium 2014|03 and da|ra 4.0, lists and explains the metadata elements, used to describe research information.

We demonstrate, to our knowledge, the first bright circularly polarized high-harmonic beams in the soft X-ray region of the electromagnetic spectrum, and use them to implement X-ray magnetic circular dichroism measurements in a tabletop-scale setup. Using counterrotating circularly polarized laser fields at 1.3 and 0.79 µm, we generate circularly polarized harmonics with photon energies exceeding 160 eV. The harmonic spectra emerge as a sequence of closely spaced pairs of left and right circularly polarized peaks, with energies determined by conservation of energy and spin angular momentum. We explain the single-atom and macroscopic physics by identifying the dominant electron quantum trajectories and optimal phase-matching conditions. The first advanced phase-matched propagation simulations for circularly polarized harmonics reveal the influence of the finite phase-matching temporal window on the spectrum, as well as the unique polarization-shaped attosecond pulse train. Finally, we use, to our knowledge, the first tabletop X-ray magnetic circular dichroism measurements at the N4,5 absorption edges of Gd to validate the high degree of circularity, brightness, and stability of this light source. These results demonstrate the feasibility of manipulating the polarization, spectrum, and temporal shape of high harmonics in the soft X-ray region by manipulating the driving laser waveform. ; The authors thank Wilhelm Becker and Luis Plaja for useful discussions. Support for this work was provided by the Department of Energy (DOE) Office of Basic Energy Sciences X-Ray Scattering Program and the National Science Foundation (NSF) Physics Frontier Center Program Grant PHY-1125844 (to T.F., P.G., R.K., D.D.H., D.Z., C.G., F.J.D., C.A.M., C.W.H., J.L.E., K.M.D., C.C., T.P., A.B., H.C.K. and M.M.M.); NSF Graduate Research Fellowship DGE-1144083 (to J.L.E.); Marie Curie International Outgoing Fellowship within the European Union (EU) Seventh Framework Program for Research and Technological Development (2007–2013), under REA Grant 328334 (to C.H.-G.); Junta de Castilla y León Project SA116U13, UIC016 (to C.H.-G.); MINECO Grant FIS2013-44174-P (to C.H.-G.); US NSF Grants PHY- 1125844 and PHY-1068706 (to A.A.J.-B.); Deutsche Forschungsgemeinschaft Grant GR 4234/1-1 (to P.G.); Swedish Research Council (R.K. and P.M.O.); EU Seventh Framework Programme Grant 281043, FemtoSpin (to K.C. and P.M.O.); Czech Science Foundation Grant 15-08740Y (to K.C.); IT4Innovations Centre of Excellence Project CZ.1.05/1.1.00/02.0070 funded by the European Regional Development Fund and the national budget of the Czech Republic Project Large Research, Development and Innovations Infrastructures LM2011033 (to D.L.); US DOE, Office of Science, Office of Basic Energy Sciences Contract DE-SC0001805 (to O.G.S.); and US DOE Office of Basic Energy Sciences Award DE-SC0003678 (to E.E.F.). This work used the Janus supercomputer, which is supported by US NSF Award CNS-0821794 and the University of Colorado, Boulder.

Este artículo propone un juego sobre el lenguaje escrito, cuya extrapolación permite pensar en el juego de poder político. Se trata de hipotetizar lo que pasaría si los signos del lenguaje escrito se transformaran todos en la letra X. La filosofía puede no ser la única forma de resolver el juego, pero es la mejor manera de plantear las preguntas que abren sus posibilidades. A través de la teoría de la encriptación del poder, suplementada con lo que aquí se denomina "juegos de lenguaje de poder", se pretende desencriptar uno de los pilares de la filosofía del ser, la construcción de Heidegger del "ser a la mano", para así abrir el camino hacía una novedosa reconfiguración del ser que sea democrático.

Literaturverz. S. XXXIII - XXXVI. - Nebent.: SGB X