Periostreaktionen an langen Röhrenknochen im Kindesalter: Differenzialdiagnose "battered child syndrome"

Zusammenfassung: Periostreaktionen an langen Röhrenknochen im Kindesalter gehören zu den röntgenologischen Befunden, die für das "battered child syndrome" charakteristisch sind. Es wird über einen 2Monate alten Säugling berichtet, der mit einem Hämatom am rechten Oberschenkel in ein Kinderspital gebracht worden war. Wegen einer radiologisch nachgewiesenen Periostabhebung am rechten Oberschenkel und einem angegebenen häuslichen Trauma war zunächst der Verdacht auf eine Kindesmisshandlung geäußert worden. Die anschließende umfassende radiologische Diagnostik zeigte dann jedoch gleichartige Auffälligkeiten auch am linken Ober- und Unterschenkel. Nachdem derartige Veränderungen gelegentlich im Rahmen des Skelettwachstums im Kindesalter beobachtet werden, muss eine solche physiologische Entstehungsmöglichkeit gerade bei multifokalem Auftreten grundsätzlich in die differenzialdiagnostischen Überlegungen bei der Abklärung einer fraglichen Kindesmisshandlung einbezogen werde

The randomly driven Ising ferromagnet, Part II: One and two dimensions

We consider the behavior of an Ising ferromagnet obeying the Glauber dynamics under the influence of a fast switching, random external field. In Part I, we introduced a general formalism for describing such systems and presented the mean field theory. In this article we derive results for the one dimensional case, which can be only partially solved. Monte Carlo simulations performed on a square lattice indicate that the main features of the mean field theory survive the presence of strong fluctuations.Comment: 10 pages in REVTeX/LaTeX format, 17 eps/ps figures. Submitted to Journal of Physics

Bosonic effective action for interacting fermions

We compare different versions of a bosonic description for systems of interacting fermions, with particular emphasis on the free energy functional. The bosonic effective action makes the issue of symmetries particularly transparent and we present for the Hubbard model an exact mapping between repulsive and attractive interactions. A systematic expansion for the bosonic effective action starts with a solution to the lowest order Schwinger-Dyson or gap equation. We propose a two particle irreducible formulation of an exact functional renormalization group equation for computations beyond leading order. On this basis we suggest a renormalized gap equation. This approach is compared with functional renormalization in a partially bosonized setting.Comment: new sections on exact mapping between attractive and repulsive Hubbard model and relation between two-particle-irreducible formalism, 32 pages,1 figure,LaTe

Argument as an Act of Friendship

Those who are said to argue are typically seen as annoying, domineering types who treat conversation as a duel in which the goal is in the words of Gerry Spence\u27s recent bestseller, to win every time. The most immediate manifestation of this resistance to argument as both inescapable and healthful comes from our students; even when they learn to appreciate and evaluate tropes at an advanced level, they still often wonder aloud, Should I engage openly in argument? This paper aspires to paste a happy face on the practice of argument as a partial antidote to this resistance

The problem of well-being in a turbulent society: aspects of security

Актуальность исследования обусловлена социальными процессами и явлениями, происходящими в современном мире, а именно ростом нестабильности и неустойчивости в природе, обществе и техносфере. В этой связи возникает необходимость обновления категориального аппарата, которым оперируют исследователи современного мира. Цель исследования: анализ содержания категории «благополучие» в условиях современного мира. Для этого вводится концепт турбулентного социума, объединяющий в себе фундаментальные изменения социальной реальности, которые произошли в последние десятилетия и которые позволяют говорить о новой форме социальной организации, пришедшей на смену проекту Модерна. Методы исследования: общелогические методы (анализ, синтез, сравнение), а также методы критического, дискурсивного и исторического анализа, с помощью которых рассмотрены центральные понятия для осмысления современности (благополучие, безопасность, государство и т. д.). Результаты. Проанализированы понятия «поток» и «турбулентность», определяющие онтологическую картину современного общества. Показано, что в эпоху Нового времени основным субъектом управления благополучием становится государство. В связи с этим указывается, что аутентичное значение «благополучия», которое восходит к античной философии, было утрачено. Тенденция на ослабление национального государства негативно отражается на благополучии граждан. Сложившаяся ситуация рассматривается на примере проблемы безопасности, которая в современном обществе становится не только политической проблемой, но и социальной. В качестве альтернативы существующему подходу к решению проблемы благополучия предлагается концепция, в основе которой лежит практика «заботы о себе».Relevance of the research is caused by social processes and phenomena occurring in the modern world, namely the growing instability and imbalance in nature, society and technosphere. This raises the need for renovation of the categorical apparatus, which is operated by the researchers of the modern world. The main aim of the study is the content analysis of the category of «welfare» in the modern world. This introduces the concept of «turbulent society», combining the fundamental changes of social reality that have occurred in recent decades and which allow talking about a new form of social organization, which replaced the Modernist project. Research methods: general logical methods (analysis, synthesis, comparison), as well as methods for critical, discursive and historical analysis, used for considering the concepts (well-being, security, government, etc.), central to the modernity discourse. Results. The author has analyzed the concept of «flow» and «turbulence» that define the ontological picture of modern society. It is shown that in the era of the New time, the state becomes the main subject of management of welfare. In this regard, it is specified that the authentic meaning of «well-being», which dates back to the ancient philosophy, has been lost. The trend in weakening the national State adversely affects the welfare of citizens. The current situation is considered on the example of security problem, which is not only a political problem but also a social one in modern society. As an alternative to the existing approach to solving the problem of well-being, the author proposes the concept based on the «self-care» practice

Pointing errors in solar absorption spectrometry - correction scheme and its validation

A method for quantification of sun-pointing inaccuracies in solar absorption spectrometry is presented along with a correction scheme for the resulting errors in trace gas vertical column or profile retrievals. A posteriori correction of pointing errors requires knowledge of both coordinates of the mispointing vector on the solar disk. In principle, quantitative information on the mispointing can be retrieved from Doppler shifts of solar lines derived from measured spectra. However, this yields only one component of the mispointing vector, namely the one which is perpendicular to the solar rotation axis. Missing information on the second vector component has hindered a posteriori correction of mispointing errors so far. Our idea to overcome this problem is to obtain estimates of both coordinates of the mispointing by combining subsequent measurements with differing orientations of the solar rotation axis relative to the zenith direction. An implementation of this original concept is demonstrated using measurements from the solar absorption Fourier transform infrared (FTIR) spectrometer at the Zugspitze (47.42° N, 10.98° E, 2964 m a.s.l.). Soundings in the September 2012 to September 2014 time interval were impacted by mispointing problems due to a non-optimum solar tracking optics configuration. They show a mean mispointing in zenith direction of -0.063°. This causes biases in vertical soundings of trace gases, e.g. -2.82 ppb in monthly means of dry-air column-averaged mole fractions of methane (XCH4). Measurements made with the more stable pre-September 2012 and post-September 2014 optics configurations show considerably smaller mispointing effects. Applying the mispointing correction, the April 2006-March 2014 XCH4 trend determined from Zugspitze measurements is reduced from 6.45 [5.84, 7.04] to 6.07 [5.55, 6.59] ppb yr-1. The correction thereby restores consistency with results from the nearby Garmisch FTIR site (47.48° N, 11.06° E, 743 m a.s.l.). The mispointing correction is applicable to solar absorption measurements in the mid infrared and near infrared. It will be of particular benefit for refining existing records of high-accuracy-and-precision greenhouse gas soundings for the purpose of improved trend analysis or source-sink inversions