bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mythos und Politik  (nicht nur) in der Antike. Anregungen und Angebote der neuen historischen PolitikforschungMyth and Politics  (not only) in Classical Antiquity. Inspirations and Impulses from Modern History after the ,Political Turn'
Authors: Hölkeskamp Karl-Joachim 
Published: February 2009

Zusammenfassung
Mythen sind ebenso allgegenwärtig wie wirkungsmächtig  nicht nur in den politischen Kulturen der klassischen Antike, sondern auch in denjenigen anderer (vor-)moderner Politien. Diese Diagnose ist empirisch überreich belegt, aber bislang nicht hinreichend erklärt  hier bietet die neue ,historische Politikforschung' weiterführende methodische Impulse, nämlich durch die Überwindung eines einseitigen Verständnisses von ,Politik', das auf deren Inhaltsseite, auf Macht, Herrschaft und das Entscheidungshandeln ihrer personalen Träger, sowie auf die technisch-instrumentellen Verfahren der Entscheidungsfindung und -implementierung fokussiert war. Mit der ,kulturalistischen' Erweiterung des Begriffs der ,Politik' kam auch deren Ausdrucksseite in den Blick, jene symbolisch-expressiven Dimensionen von Politik, die der Darstellung und Vermittlung von Macht und Herrschaft als Teil ihrer Hervorbringung und Durchsetzung und damit der (Re-)Produktion ihrer Akzeptanz und Legitimität dienen. Vor diesem Hintergrund erscheint politisches Handeln als kommunikatives Handeln bzw. als komplexer Prozeß des Aushandelns von Agenden, Ansprüchen und ihrer Anerkennung zwischen Herrschenden und Beherrschten  und ,Politik' als ein im permanenten sozialen Vollzug konstituierter Kommunikationszusammenhang bedarf eines entsprechenden Spektrums von Medien. Am Beispiel der politischen Kultur der klassischen Demokratie Athens läßt sich exemplarisch zeigen, daß der Mythos ein solches Medium darstellte - mehr noch: Gerade der Mythos als ,Diskursfiguration' erweist sich durch seine eingeschriebene Variabilität, Offenheit für Um- und Neudeutungen und besondere An- und Einpassungskapazität als besonders geeignet in Prozessen der kommunikativen (Be-)Gründung und (Re-)Produktion von identitätsstiftenden Werthorizonten und Ideologien, ihrer Geltung und Wirkungsmacht.
Heilig  Römisch  Deutsch. Zur Bilanz einer AusstellungSacred  Roman  German. Recapitulation of an Exhibition
Authors: Hechberger Werner 
Published: February 2009

Zusammenfassung
Zugleich Besprechung von:
Heilig – Römisch – Deutsch. Das Reich im mittelalterlichen Europa. Internationale Tagung zur 29. Ausstellung des Europarates und Landesausstellung Sachsen-Anhalt. Hrsg. v. Bernd Schneidmüller u. Stefan Weinfurter

Heiliges Römisches Reich Deutscher Nation 962 bis 1806. Von Otto dem Großen bis zum Ausgang des Mittelalters. 29. Ausstellung des Europarates in Magdeburg und Berlin und Landesausstellung Sachsen-Anhalt. [Bd.1:] Katalog. [Bd. 2:] Essays. Hrsg. v. Matthias Puhle u. Claus-Peter Hasse

Heiliges Römisches Reich Deutscher Nation 962 bis 1806. Altes Reich und neue Staaten 1495 bis 1806. 29. Ausstellung des Europarates in Berlin und Magdeburg. [Bd. 1:] Katalog. Im Auftrag des Deutschen Historischen Museums hrsg. v. Hans Ottomeyer, Jutta Götzmann u. Ansgar Reiss. [Bd. 2:] Essays. Hrsg. v. Heinz Schilling, Werner Heun u. Jutta Götzmann
Structural complexity in monodisperse systems of isotropic particles
Authors: Engel Michael , Trebin Hans-Rainer 
Published: February 2009

Abstract
It has recently been shown that identical, isotropic particles can form complex crystals and quasicrystals. In order to understand the relation between the particle interaction and the structure, which it stabilizes, the phase behavior of a class of two-scale potentials is studied. In two dimensions, the phase diagram features many phases previously observed in experiment and simulation. The three-dimensional system includes the sigma phase with 30 particles per unit cell, not grown in simulations before, and an amorphous state, which we found impossible to crystallize in molecular dynamics. We suggest that the appearance of structural complexity in monodisperse systems is related to competing nearest neighbor distances and discuss implications of our result for the self-assembly of macromolecules.
Nano quasicrystal formation and local atomic structure in Zr–Pd and Zr–Pt binary metallic glasses
Authors: Saida Junji , Sanada Takashi , Sato Shigeo , Imafuku Muneyuki , Li Chunfei , Inoue Akihisa 
Published: February 2009

Abstract
Formation of the nanoscale icosahedral quasicrystalline phase (I-phase) in the melt-spun Zr70Pd30 and Zr80Pt20 binary metallic glasses were reported. Local atomic structure in the glassy and quasicrystal (QC)-formed states were also analyzed by XRD and EXAFS measurements in order to investigate the formation mechanism of QC phase. The distorted icosahedral-like local structure can be identified around Zr atom in the Zr70Pd30 metallic glass. In the QC formation process, a change of local environment around Zr is detected, in which the approximately one Zr atom substitutes for one Pd atom. In contrast, since the local environment around Pt atom is remaining during the QC precipitation, it is suggested that the stable icosahedral local structure is mainly formed around a center Pt atom in the glassy state in Zr80Pt20. We also found that the local environment around Zr atom significantly changes during the quasicrystallization in the alloy. These results differ from those in the Zr70Pd30 metallic glass.
Counting perfect colourings of plane regular tilings
Authors: Frettlöh Dirk 
Published: February 2009

Abstract
A first step in investigating colour symmetries of periodic and nonperiodic patterns is determining the number of colours which allow perfect colourings of the pattern under consideration. A perfect colouring is one where each symmetry of the uncoloured pattern induces a global permutation of the colours. Two cases are distinguished: Either perfect colourings with respect to all symmetries, or with respect to orientation preserving symmetries only (no reflections). For the important class of colourings of regular tilings (and some Laves tilings) of the Euclidean or hyperbolic plane, this mainly combinatorial question is addressed here using group theoretical methods.
Theory of short-range order diffuse scattering in quasicrystals and its application to random phason flips in the Penrose pattern
Authors: Yamamoto Akiji 
Published: February 2009

Abstract
An analytical expression of the diffuse scattering intensity due to short-range order in quasicrystals is derived. The intensity is calculated on the basis of higher-dimensional cluster models and correlation functions between statistically occupied sites. This expression is applied to the phason flip disordering in the Penrose pattern. The analytical and numerical calculations show quite similar diffuse scattering intensity distribution, suggesting the validity of the derived formula.
Cluster study of Al–Co–Ni decagonal quasicrystal
Authors: Inukai Manabu , Soda Kazuo , Kato Masahiko , Yagi Shinya , Yokoyama Yoshihiko 
Published: February 2009

Abstract
The electronic structure and atomic arrangement of a decagonal Al–Co–Ni quasicrystal have been investigated in terms of a model unit cluster by using a discrete variational X
α (DV-Xα) cluster calculation. The partial electronic density of states (DOS) and overlap population analysis for local clusters around the constituent transition-metals (TM´s) show the energy reduction of both the Co and Ni 3d states but the increase in the anti-bonding character for their TM-Al bonds at the second inner ring TM site of the model cluster in comparison to the most inner ring TM site. Comparing the calculated DOS with the observed valence-band photoelectron and TM Lα X-ray emission spectra, we discuss the occupation at the transition metal sites by Co and Ni.
Anomalous conduction mechanisms of Al-based stable quasicrystals
Authors: Kanazawa Ikuzo , Kitahata Hiroki , Sekiyama Yuuki 
Published: February 2009

Abstract
We have analyzed the electrical conductivities of Al–Cu–Fe and Al–Cu–Ru quasicrystals in a low temperature region, taking into account the conducting mechanism of the quasicrystal-like system. The present analysis suggests strongly that not only the weak localization and the electron-electron interaction contributions but also the conducting effect of the quasicrystal-like system should be considered.
Characterization of the icosahedral quasicrystalline phase in rapidly solidified Al–Cu–Fe alloys
Authors: Avar Baris , Gogebakan Musa , Yilmaz Fikret 
Published: February 2009

Abstract
The present research aimed to characterize the microstructure of icosahedral quasicrystalline phase (i-phase) in different chemical compositions of Al–Cu–Fe alloys. The ternary alloys with the nominal compositions of Al70Cu20Fe10, Al65Cu20Fe15 and Al63Cu25Fe12 (at%) were rapidly solidified by melt-spinning technique. The melt-spun ribbons were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal analysis (DTA). According to the XRD results, diffraction patterns of Al70Cu20Fe10 alloy showed the presence of the i-phase together with tetragonal θ-Al2Cu phase. However, XRD pattern of the melt-spun Al63Cu25Fe12 alloy showed the formation of i-phase together with a small amount of β-phase. The single quasicrystalline phase was observed only in the rapidly solidified Al65Cu20Fe15 alloy. The SEM examinations showed that the melt-spun Al70Cu20Fe10 and Al63Cu25Fe12 alloys composed of i-phase with an average grain size of 1–5 μm. However, for the Al65Cu20Fe15 alloy, the quasicrystalline particles in the star-shape dendritic formations were observed. The melting point of i-phase was determined as 890 °C by DTA examinations.
Synthesis of nanocrystalline spinel phase by mechanical milling of Al–Cu–Fe and Al–Cu–Cr–Fe quasicrystalline alloys
Authors: Mukhopadhyay Nilay K. , Yadav Thakur Prasad , Tiwari Radhey Shyam , Srivastava Onkar Nath 
Published: February 2009

Abstract
In the present study, a low-temperature synthesis of (Cu,Fe)Al2O4 and (Cu,Cr,Fe)Al2O4 spinels from the quasicrystalline phases was investigated with the variation of process parameters during milling and annealing. The milling of the quasicrystalline materials was carried out in an attritor mill at 400 rpm for 40 hours with ball to powder ratio of 40 : 1 in hexane medium. Subsequently, annealing was performed in an air ambience for 10, 20, and 40 h at 400, 500, 600 and 700 °C inside a furnace in order to oxidize the mechanically milled quasicrystalline phase for the possible formation of the spinel phase. It was found that after annealing at higher temperatures (about 500 °C), mechanically milled quasicrystalline alloy transformed to a spinel phase whereas annealing at lower temperatures (<500 °C) led to the formation of B2 phase as a major one along withminor amount of oxide phase. The X-ray diffraction and transmission electron microscopy of the annealed samples confirmed the formation of the spinel phase with an average grain size of about 20–40 nm. It is interesting to note that the nanospinel phases showed the different colors during various annealing time and temperature. The optical properties of nanospinel materials, investigated employing UV visible spectrometer exhibited absorption characteristics.
Iron atomic jumps in Al–Cu–Fe quasicrystals and approximants
Authors: Brand Richard , Hippert Francoise 
Published: February 2009

Abstract
The iron dynamics in the icosahedral quasicrystal i-AlCuFe and two cubic 1/1 approximants as well as the non-approximant cubic B2 phase has been studied by Mössbauer spectroscopy. In the i-phase the iron Lamb-Mössbauer recoilless fraction decreases below that predicted for lattice vibrations alone above about 550 K. This decrease is correlated with the onset of a quasielastic signal at high Doppler velocities, demonstrating local iron jump processes at temperatures above this point. In the two cubic approximants, a loss in the recoilless fraction also occurs above 550 K, revealing the same kind of Fe dynamics as in the i-phase but the effect is smaller. On the other hand, no anomalous Fe dynamics (other than lattice vibrations) is detected in the B2-AlCuFe phase. A comparison is made to literature Mössbauer and neutron scattering results in i-AlCuFe.
Diffuse and weak Bragg scattering from quasicrystals: pitfalls and opportunities
Authors: Weber Thomas , Steurer Walter 
Published: February 2009

Abstract
The influence of limited experimental reciprocal space resolution on the appearance of diffraction patterns from quasicrystals is discussed. Using simulated data from a perfectly ordered one-dimensional Fibonacci chain it is shown that realistic experimental resolution effects may lead to artificial ‘diffuse scattering’ of significant intensity. Two different diffuse features are identified in simulations of macroscopically sized crystals. A broad and almost smooth diffuse background is found, which strongly inceases with decreasing reciprocal space resolution. In addition, a set of of narrow diffuse peaks having profiles similar to thermal and phasonic diffuse scattering is present, which is only seen in high resolution patterns. The former diffuse scattering represents unresolved Bragg reflections, while the latter is due to truncation effects coming from the finite crystal size. The relevance of the findings for the understanding of real experimental diffraction patterns is discussed on the examples of diffuse scattering from d-Al70Co12Ni18 and i-Al64Cu23Fe13. Finally, some criteria for distinguishing disorder diffuse scattering from artificial diffuse scattering are given.
Theoretical Approaches to Surface Kinetics: A Perspective
Authors: Kreuzer Hans Juergen 
Published: February 2009

Abstract
In this paper I outline the scope and success of the theory of equilibrium and nonequilibrium properties of surfaces and adsorbates Basic issues such as time and length scales lead to various levels of sophistication provided the proper assumptions are implimented successfully leading to a hierarchy of theories from the macroscopic level of nonequilibrium thermodynamics to Markov processes at the mesoscopic level and ultimately to a fully quantum mechanical description. Special ttention will be given to the role of detailed balance in sticking and desorption via direct and precursor-dominated channels.
Modification of the Growth of Iron on Ag(111) by Predeposited Organic Monolayers
Authors: Buchner Florian , Kellner Ina , Steinrück Hans-Peter , Marbach Hubertus 
Published: February 2009

Abstract
We study the modification of the growth behaviour of iron on Ag(111) by pread sorbed monolayers of 2H-phthalocyanine (2HPc) and 2H-tetraphenylporphyrin (2HTPP) by scanning tunneling microscopy, upon Fe deposition in ultra-high vacuum at room temperature. The growth of iron on clean Ag(111) follows the scheme expected from reports of similar systems: For low coverages (up to ~0.3 ML) an almost exclusive agglomeration of iron clusters at step edges occurs, which continue to grow in a dendritic fashion at higher coverages. Upon deposition onto Ag(111) precovered with monolayers of 2HTPP and 2HPc, at coverages up to 0.037 ML no growth of Fe islands but complete metalation, i.e., incorporation of the Fe atoms in the macrocyle of the preadsorbed molecules is found. For higher amounts of deposited Fe (0.037 < θ
Fe < 0.30 ML), the formation of Fe islands is observed, which occurs differently for 2HPC and 2HTPP. While on 2HTPP two-dimensional islands are formed presumably underneath a FeTPP monolayer, for 2HPc the Fe growth is dominated by the formation of small 3D clusters within a FePc monolayer. At θ
Fe
= 2.0 ML, both systems exhibit small three dimensional Fe islands. These results are discussed considering different aspects like the molecular conformation of FeTPP and FePc on Ag(111) and the diffusional properties of Fe on the clean and modified substrate.
The Adsorption of Ethene on Pd(111) and Ordered Sn/Pd(111) Surface Alloys
Authors: Hamm G. , Schmidt T. , Breitbach J. , Franke D. , Becker Conrad , Wandelt K. 
Published: February 2009

Abstract
The adsorption of ethene (C2H4) has been studied on Pd(111) and ordered Sn/Pd(111) surface alloys using temperature programmed desorption (TPD), ultraviolet photoelectron spectroscopy (UPS), high-resolution electron energy loss spectroscopy (HREELS), and low energy electron diffraction (LEED). Two surface alloys were prepared by thermal treatment of Sn-films, which were vapor deposited on Pd(111) at room temperature. Depending on the preparation conditions, surface alloys giving a p(2×2) or a (√3×√3)R30° LEED pattern were produced. Below 250 K ethene adsorbs on pure Pd(111) in an undissociated – but substantially distorted – form relative to the molecular structure in the gas phase: HREELS suggests an adsorption in the di-σ bonded state. A π-bonded ethene species was, however, found to coexist with this strongly rehybridized form, probably as a result of hydrogen coadsorbed from the residual gas. TPD and annealing experiments followed by UPS and HREELS indicated that most of the adsorbed ethene desorbs reversibly in the temperature range between 150 K and 350 K, while a small amount dehydrogenates. After adsorption at room temperature, ethylidyne (≡CCH3) has been identified as the most important species. Alloying Pd(111) with Sn results in a decreasing ethene-substrate interaction with increasing Sn-content in the topmost layer of the substrate. Only π-bonded ethene was formed on both surface alloys and decomposition reactions were suppressed.
Socialist Realism and the Music of the French Popular Front
Authors: Moore Christopher 
Published: February 2009

Abstract
The political agenda of the French Popular Front (1935–38) sought to unite workers and intellectuals in solidarity against the forces of European fascism. Many French composers were quickly implicated in this politicized process, supported by the rapid development of Communist-funded cultural organizations like the Fédération Musicale Populaire and inspired by tremendous interest in the Soviet cultural model. These political circumstances welcomed the techniques of socialist realism in France under the Popular Front, but Soviet aesthetics were creatively appropriated to reflect French musical traditions and political realities. Libérons Thaelmann by Charles Koechlin and Jeunesse by Arthur Honegger exemplify this engagement with Communist politics and aesthetics, confirming the musical and political relevance of socialist realism for French composers during the mid-1930s.
THE SPECIFICITY OF THE HUMAN UTERINE RECEPTOR
Authors: Fanchenko N. D. , Sturchak S. V. , Shchedrina R. N. , Pivnitsky K. K. , Novikov E. A. , Ishkov V. L. 
Published: February 2009

ABSTRACT
The aim of the present study was to assess the contribution of different parts of natural and synthetic steroid molecules in their binding to high affinity oestradiol receptor preparations obtained from whole human uteri. Fifty-five compounds were used in the study of which 38 contained the steroid nucleus. The affinity (in terms of association constants) of the compounds for the receptor was determined from competitive studies with radioactive oestradiol. As a consequence the compounds could be grouped according to their association constants for the receptor. The contribution of the individual functional groups of the steroid molecule to the binding process was analysed. The preliminary quantitative evaluation of the contribution was derived from the equation: log K = logΔ Ks + ΣlogΔ KF where Ks is the contribution of the basic 1,3,5-(lO)-oestratriene skeleton, KF the associated functional groups and K the affinity constant for the entire molecule. The main positive contribution in the binding is provided by skeleton and the 3-hydroxyl group. It is concluded that functional groups present at either the 3 or 17 position act independently of each other in the binding process. The possible synergism between the functional groups and the steroid skeleton is discussed.
Correlates of Depressive Symptoms among Workers in Small‐ and Medium‐scale Manufacturing Enterprises in Japan
Authors: Ikeda Tomoko , Nakata Akinori , Takahashi Masaya , Hojou Minoru , Haratani Takashi , Nishikido Noriko , Kamibeppu Kiyoko 
Published: February 2009

Correlates of Depressive Symptoms among Workers in Small‐ and Medium‐scale Manufacturing Enterprises in Japan: Tomoko Ikeda, et al. Department of Nursing, School of Health Sciences, Ibaraki Prefectural University of Health SciencesBackgroundAlthough the relationship between job stress and depressive symptoms has been well documented among workers in large scale enterprises, the situation in small‐ and medium‐scale enterprises (SMEs) is not fully understood.ObjectivesTo clarify the factors associated with depressive symptoms in SMEs in Japan.Methods1,516 male and 738 female Japanese workers at SMEs were surveyed using a self‐administered questionnaire. We applied hierarchical multiple linear regression with depressive symptoms (Center for Epidemiologic Studies Depressive Symptoms Scale) as the dependent variable, and (1) Individual, (2) Lifestyle, (3) Job stressors, and (4) SME unique factors as independent variables entered in 4 steps. Analyses were stratified by sex due to large differences in stress scores and demographic variables.ResultsPerceived lack of understanding from others with regard to health was the strongest factor associated with increased depressive symptoms (BETA=0.29 in males and 0.28 in females). Higher intragroup conflict (BETA=0.15 in males and 0.09 in females), perceived job future ambiguity (BETA=0.09 in males and 0.11 in females), higher quantitative workload (BETA=0.06 in males and 0.10 in females), and being an employer or a member of the employer's family (BETA=0.06 in males and 0.10 in females) were additional factors associated with high depressive symptoms. Economic concern, being single, cigarette smoking, shorter sleep duration, and skill underutilization were male specific, while younger age and lower social support at work were female specific factors significantly associated with increased depressive symptoms.ConclusionsThese data suggest that poor mental health may be prevented by creating a workplace climate which focuses on the high value of the health of fellow workers.
Correlation Among Material Quality, Performance and Reliability of High Power and High Frequency AlGaN/GaN HFET
Authors: Nanishi Yasushi 
Published: February 2009

AbstractPerformances of AlGaN/GaN HFETs have much improved recently and very high potential of this hetero- structure for high power and high frequency electronic devices has been verified. Application of new device technologies such as field plate, recessed gate, digital pre-distortion circuit and dual field plate was essential to realize such high device performances both at 2 GHz, 5GHz and 26 GHz. However, practical requirements on the quality and structure of these material systems for production of these devices are still not clear. Extensive studies on correlation among material quality, device performance and reliability were investigated under Japanese NEDO project. Firstly, this paper reviews recent progress of the performances of high power and high frequency AlGaN/GaN HFETs. Then, several interesting results which suggest practical requirements on material quality and structure will be discussed based on our extensive characterization studies in terms of device performances and reliabilities.