bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mössbauer and magnetic studies of FeCoNiCuNbSiB nanocrystalline alloys
Authors: Grabias Agnieszka , Basykh Viktoriia , Ferenc Jarosław , Cieślak Grzegorz , Kulik Tadeusz , Kopcewicz Michał 
Published: June 2017

Abstract
Nanocrystalline Fe80-x-yCoxNiyCu1Nb3Si4B12 alloys were prepared by the annealing of amorphous ribbons. Primary crystallization of the alloys annealed at temperatures of between 500 and 550°C was studied by X-ray diffraction and Mössbauer spectroscopy. Magnetic properties of the alloys were investigated using a hysteresis loop tracer and vibrating sample magnetometer. The annealed ribbons are composed of a two-phase nanostructure consisting of bcc Fe-based grains embedded in an amorphous matrix. Conversion electron Mössbauer spectroscopy (CEMS) measurements reveal a more advanced crystallization process in the surface layers when compared with the volume of the ribbons. The degree of saturation magnetization of the nanocrystalline alloys is of about 1.5 T. The coercive field varies from 1.0 to 6.5 A/m and peaks at an annealing temperature of 525°C. Magnetic softening of the nanocrystalline alloys observed after annealing at 550°C is correlated with a volume fraction of the nanocrystalline bcc phase.
Microstructure and magnetic properties of amorphous Fe51Co12Si16B8Mo5P8 alloy
Authors: Hasiak Mariusz , Miglierini Marcel , Amini Narges , Bujdoš Marek 
Published: June 2017

Abstract
Microstructure and thermomagnetic characteristics of the amorphous Fe51Co12Si16B8Mo5P8 alloy in the as-quenched state and after 1 h of annealing at 573 K and 773 K are studied. The structural investigations performed by Mössbauer spectroscopy and X-ray diffractometry confirmed the amorphous structure of the analysed materials. An increase in the annealing temperature up to 773 K does not lead to crystallization of the amorphous alloy. Only structural rearrangement that causes changes in the topological short-range order and annealing out of free volume is observed. This behaviour was confirmed by modifications of the shapes of hyperfine field distributions derived from the corresponding Mössbauer spectra of the investigated alloys. The Curie temperatures of the as-quenched and annealed Fe51Co12Si16B8Mo5P8 alloy at 573 and 773 K are 400, 405 and 421 K, respectively.
Structural properties of Mn-substituted hercynite
Authors: Jastrzębska Ilona , Bodnar Wiktor , Witte Kerstin , Burkel Eberhard , Stoch Paweł , Szczerba Jacek 
Published: June 2017

Abstract
In this work spinel series with the general formula Fe1-xMnxAl2O4 (where x = 0, 0.3, 0.5 and 0.7) were synthesized and characterized with respect to their structure and microstructure. X-ray diffractometry (XRD) was used to identify the phase composition that revealed a single phase spinel material. Rietveld refinements of the XRD patterns were carried out in order to determine the lattice and oxygen positional parameters of the spinel compounds. Mössbauer effect measurements were performed at room temperature to determine the local chemical environment of the Fe ions, their valences, and degrees of spinels inversion. It was shown that an increase in the Mn content led to a decrease in the ratio of Fe2+ to Fe3+. The results obtained from Mössbauer spectroscopy (MS) were used to establish the chemical formulas of the synthesized spinels. Finally, the microstructure that was observed using scanning electron microscopy (SEM) showed a compact microstructure with an octahedral crystal habit.
Compositional dependence of hyperfine interactions and magnetoelectric coupling in (BiFeO3)x-(BaTiO3)1–x solid solutions
Authors: Kowal Karol , Guzdek Piotr , Kowalczyk Maciej , Jartych Elżbieta 
Published: June 2017

Abstract
In this work the compositional dependence of hyperfine interactions and magnetoelectric coupling in (BiFeO3)x-(BaTiO3)1-x solid solutions where x = 0.5-0.9 fabricated from commercial BaTiO3 in terms of the solid-state sintering method at various temperatures and over different time periods is described. In general, as the content of BaTiO3 increases, a decrease in the hyperfine magnetic field (Bhf) at 57Fe nuclei was observed. However, for samples exhibiting lower homogeneity in which the ions of Bi3+ and Fe3+ are replaced by Ba2+ and Ti4+ with lower probability, higher values of Bhf are obtained. For the sample where x = 0.6 that exhibits the coexistence of rhombohedral, regular and tetragonal phases, the highest value of the αME coefficient (3.57 mV/A) was observed, which is more than three times higher when compared to the hitherto published results.
Spin reorientation process in Tm2–xHoxFe14B – analysis of conical arrangement based on Mössbauer spectra
Authors: Kurzydło Piotr M. , Pędziwiatr Antoni T. , Bogacz Bogdan F. , Przewoźnik Janusz , Oleszak Dariusz 
Published: June 2017

AbstractThe spin reorientation process in the Tm2-xHoxFe14B series of compounds was studied using57Fe Mössbauer spectroscopy over the temperature range 5.2-320 K with a focus on the analysis of conical spin arrangement. Each compound was studied by precise Mössbauer scanning in the vicinity of the transition and during the transition. By applying computer simulations based on the simplified Yamada-Kato model, as well as on some literature data for R2Fe14B (R = Tm, Ho) compounds, the above series was selected for studies as it contains compounds with different spin arrangements (axial, planar, conical). It was a crucial requirement for obtaining unambiguous angular dependences when applying a simultaneous fitting procedure of Mössbauer spectra. Such an extended procedure was applied which allowed the temperature dependence of the angle describing the position of the magnetization vector to be obtained. The results were compared with those from theoretical simulations. The spin arrangement diagram was constructed. A conical spin arrangement was confirmed over a wide temperature range.
Preliminary results of 57Fe Mössbauer spectroscopy of metamict samarskite after one-hour high temperature annealing in argon
Authors: Malczewski Dariusz , Grabias Agnieszka 
Published: June 2017

Abstract
The preliminary results of 57Fe Mössbauer spectroscopy and X-ray diffraction (XRD) of fully metamict samarskite dated at ~1500 Ma, which absorbed α-dose of 6.5 × 1017 α-decay mg-1, are reported after one-hour annealing at 673, 873, 1173 and 1373 K in argon atmosphere. Metamict minerals contain radioactive elements that degrade their crystal structures over geological time. All the Mössbauer spectra obtained can be fitted to two quadrupole doublets assigned to Fe2+ and Fe3+ in octahedral positions. The relative contribution of Fe2+ (Fe2+/Fe) reaches a minimum of 0.10 at 1173 K.
Effect of BaTiO3 concentration on structural and magnetic properties of mechanically activated BiFeO3-BaTiO3 system
Authors: Malesa Bożena , Pikula Tomasz , Oleszak Dariusz , Jartych Elżbieta 
Published: June 2017

Abstract
In this research, the mechanical activation method is proposed as an alternative process of preparation of the (BiFeO3)1-x-(BaTiO3)x solid solutions with various concentrations of barium titanate (x = 0.1÷0.9). However, mechanical milling itself does not allow obtaining the desired products and additional thermal treatment is needed to complete the solid-state reaction. In the present studies, X-ray diffraction and 57Fe Mössbauer spectroscopy were applied as complementary methods in order to study the structural and magnetic properties of materials. The investigations revealed that an increase of BaTiO3 concentration causes changes in the crystalline and hyperfine magnetic structure of the studied (BiFeO3)1-x-(BaTiO3)x system.
An example of the application of Mössbauer spectroscopy for determination of concentration of iron in lyophilized brain tissue
Authors: Rzepecka Patrycja , Duda Przemysław , Giebułtowicz Joanna , Sochacka Małgorzata , Friedman Andrzej , Gałązka-Friedman Jolanta 
Published: June 2017

Abstract
Mössbauer spectroscopy is not routinely used for the determination of the concentration of iron. However, as this method does not need any pre-treatment of samples before measurements, it may be of extreme importance for the assessment of iron in samples, which can then be used for further investigations. Biological samples are a good example, however, as the concentrations of iron are very low in these, it is important to exclude possible artefacts from the background spectrum related to iron present in the counter and cryostat windows. The aim of this study was to compare two methods of determination of the amounts of iron in investigated sample: one, in which the background spectrum was subtracted from the sample spectrum measured, and the other, in which the obtained non-elaborated spectrum was fitted with two doublets - a doublet for the measured sample and a doublet for the background spectrum. Three samples containing known amounts of natural iron (400, 800 and 1600 μg) and a sample of lyophilized human brain tissue obtained from globus pallidus were assessed. Both methods led to the creation of a very good calibration curve with a correlation coefficient of 0.99. Although both methods gave similar results for the concentration of iron in the sample, the subtraction of the background spectrum had a significantly lower error of the final result.
Synthesis and characterization of AgFeO2 delafossite with non-stoichiometric silver concentration
Authors: Siedliska Karolina , Pikula Tomasz , Chocyk Dariusz , Jartych Elżbieta 
Published: June 2017

Abstract
The simple co-precipitation method was used to prepare AgxFeO2 delafossite with non-stoichiometric silver concentration in the range of x = 0.05-1. The obtained material was investigated using X-ray powder diffraction and 57Fe Mössbauer spectroscopy at room temperature. The structural and hyperfi ne interaction parameters were recognized in relation with decreasing silver concentration. The study revealed that the delafossite structure of AgxFeO2 was maintained up to x = 0.9; as the range of silver concentration was decreased to 0.05 ≤ x ≤ 0.8, a mixture of AgFeO2, Fe2O3 or/and FeOOH was formed.
Bewegungsförderung in der pflegerischen Langzeitversorgung
Authors: Horn Annett , Kleina Thomas , Schaeffer Doris 
Published: June 2017

Zusammenfassung
Studien belegen, dass durch körperliche Aktivität auch im hohen Alter positive Gesundheitseffekte erzielt werden können. Wenig Wissen liegt jedoch über die Potenziale von Bewegungsförderung bei hochaltrigen, chronisch kranken und pflegebedürftigen Menschen vor. Dies gilt insbesondere für Nutzer stationärer Pflegeeinrichtungen. Der Beitrag gibt einen Überblick über den bisherigen Kenntnis- und Wissenstand, zeigt Forschungslücken auf und gibt Empfehlungen für die Etablierung von Bewegungsförderung in der stationären Langzeitversorgung.
Ressourcenorientierte Beratung für gesundes Altern
Authors: Lang Frieder R. , Beyer Anja 
Published: June 2017

Zusammenfassung
Vorherrschende Beratungsangebote für Ältere und deren Angehörige fokussieren meist auf spezifische defizitäre Alternserfahrungen. Beratung für gesundes Altern ist hingegen präventiv ausgerichtet auf die Stärkung der Ressourcen der Klienten im Vorfeld pathogener Entwicklungen und orientiert sich an alternsabhängigen Einflussfaktoren, am Alternserleben der Betroffenen sowie an Selbst- und Umweltidealen, um motivationale Ressourcen und adaptive Strategien zu schützen, zu aktivieren und zu fördern.
Arzneimitteltherapie im Alter – individualisiert und sicher
Authors: Marx Yvonne , Herrmann Markus , Robra Bernt-Peter 
Published: June 2017

Zusammenfassung
Zunehmendes Alter, Multimorbidität, Polypharmazie und daraus resultierende Risiken sind nahezu untrennbar miteinander verbunden. Trotz zahlreicher Bemühungen gibt es bisher keine langfristig wirksame Strategie zur Reduktion einer Polypharmazie durch den Hausarzt. Basierend auf aktuellen Erkenntnissen und unter Berücksichtigung hemmender Faktoren wird eine mögliche komplexe Intervention für die hausärztliche Praxis abgeleitet.
Materielle Versorgung im Alter: Zur regionalen Bedeutung von Alterssicherungssystemen
Authors: Fachinger Uwe 
Published: June 2017

Zusammenfassung
Der materiellen Versorgung im Alter kommt eine hohe regionale Bedeutung zu. Insbesondere die regionale Kaufkraft in ostdeutschen Kommunen hängt stark von den Leistungen der Gesetzlichen Rentenversicherung ab. Aufgrund der regionalen Unterschiede sind die Kommunen von den von Alterssicherungssystemen verursachten direkten und indirekten Effekten in unterschiedlichem Ausmaß betroffen. So besteht beispielsweise durch die Reduzierung des Leistungsniveaus die Gefahr, dass das Wohlfahrtsgefälle zwischen den Regionen zunehmen wird.
Herausforderung Fragilitätsfrakturen – aus Sicht eines Alterstraumazentrums
Authors: Kretschmer Rainer , Loher Martin , Apfelbacher Christian , Nerlich Michael 
Published: June 2017

Zusammenfassung
Die Anzahl von Fragilitätsfrakturen in Deutschland wird in den nächsten Dekaden demografiebedingt stark ansteigen. Im stationären Bereich kann von der erfreulich ansteigenden Anzahl von spezialisierten Alterstraumazentren eine Verminderung der für die Betroffenen oftmals einschneidenden gesundheitlichen Folgen erwartet werden. Weiterhin erfährt aber eine flächendeckende und sektorenübergreifend aufzustellende Primär- und Sekundärprävention nicht die erforderliche Aufmerksamkeit.
Skill-Biased Technological Change, Earnings of Unskilled Workers, and Crime
Authors: Mocan Naci , Unel Bulent 
Published: June 2017

AbstractThis paper investigates the impact of unskilled workers’ earnings on crime. We create indexes of skill-biased technological change which vary by state and year, or by state, year, and industry. These indexes are used as instruments for earnings in crime regressions. We analyze US state panels, and also run structural crime equations using micro panel data from NLSY97. Estimated elasticities are markedly larger than those obtained by previous studies. Considering technology being adopted at the regional level does not alter the results appreciably. We also find evidence for asymmetric impact of unskilled workers’ earnings on crime.
The Relationship between Economic Development and Fatal Occupational Accidents: Evidence from Turkey
Authors: Çolak Olcay , Palaz Serap 
Published: June 2017

Abstract
Occupational accidents are among the most important issues of the agenda of working life in Turkey recently. Recently the causes and consequences of occupational accidents which are related to human, occupational and environmental factors have received great attention from the researchers but it has been paid little attention to focused on economic factors. The purpose of this paper is to make a contribution to redressing this gap by examining the relationship between fatal occupational accidents and economic development over the period of 1980 to 2012 for Turkey. In this context, bounds testing approach which is also known as autoregressive distributed lag model is performed. The results indicate the existence of positive relationship between gross domestic product per capita and fatal occupational accidents in the short-run while in the long run this turns out to be in a negative way via economic growth and changes in structure of the economy.
Specifics of IFRS Adoption by Central and Eastern European Countries: Evidence from Research
Authors: Procházka David 
Published: June 2017

Abstract
The paper reviews recent literature on the specifics of adoption of International Financial Reporting Standards (IFRS) by the new EU members from the Central and Eastern Europe. Despite being members of the EU or OECD, the transition to a standard developed economy has not yet finished. The first part of the paper presents macroeconomic statistics and capital market data, which underline a unique economic structure of the region (relative unimportance of capital markets for raising capital, strong dependence on foreign direct investments) combined with the lacks in institutional environment. Under such conditions, the economic consequences of IFRS adoption can be unpredictable and adverse. The second part of the paper analyses the reflection of specifics of the IFRS adoption in the CEE region in research studies covered by the Thomson Reuters’ Web of Science database. The analysis reveals (a) cross-country disproportion in the research coverage of the area; (b) relatively low coverage of the IFRS research focusing on these transition countries in top journals.
Saussure and the model of communication
Authors: Daylight Russell 
Published: June 2017

AbstractOne of the less obvious contributions of Saussure is his role in establishing modern communications theory. The sender-message-receiver (SMR) model of communication was developed by Shannon and Weaver (1949,The mathematical theory of communication. Urbana, IL: University of Illinois Press). Within the humanities, it is Roman Jakobson’s version of the SMR model that is most influential. Jakobson’s model creates a methodology for considering such complexities as the sender’s intentions, the context of transmission, metalinguistic codes, the transmission medium, and the relation to the referent. Despite the complexity of Jakobson’s model, it is still bound by the assumption that perfect communication can be achieved through the full recovery of contexts. The most thorough and powerful critique of what’s often called the “transmission model” of communication is found in Jacques Derrida’s “Signature Event Context.” Derrida’s critique begins by demonstrating “why a context is never absolutely determinable” (1988a: 3, Signature event context. In Gerald Graff (ed.),Limited inc., Samuel Weber (trans.), 1–23. Evanston, IL: Northwestern University Press). In place of context, Derrida proposes the notion of “dissemination” in which a text is radically adrift of the conditions of its utterance or reception. At face value, Saussure’s “speech circuit” model represents an early and underdeveloped model of communication. As if often the case, however, a closer reading of theCoursreveals something far more radical and profound. Closer attention to Saussure’s speech circuit model re-opens many questions in communication theory, and in associated fields such as literary theory, cultural studies, and semiotics.
La saisie esthétique, transformation non narrative de la subjectivité
Authors: Marrone Gianfranco 
Published: June 2017

Abstract
Post-Greimassian semiotics has worked toward a return to phenomenology, with the aim of studying the sensorial dimension and the body. Most of this research, however, has all but forgotten Greimas’s last book, De imperfection (1987), in which he proposes an original version of Merleau-Ponty’s philosophy with the notion of the aesthetic grasp. I propose to reconsider this almost abandoned notion, both from a theoretical point of view (a new version of the catharsis of philosophical aesthetics) and from the vantage of textual descriptions (the short story “The Naked Bosom” by Italo Calvino and the movie Ratatouille).
Fatal Cervical Spine Injury Following a Bicycle Crash
Authors: Uhrenholt Lars , Boel Lene Warner Thorup , Thomsen Asser Hedegaard 
Published: June 2017

Abstract
Spinal injury following direct loading of the head and neck is a rare sequel of bicycle crashes. Fatal head injuries following bicycle crashes have been described in great detail and safety measures such as bicycle helmets have been developed accordingly. Less frequently, however, potentially severe cervical spine injuries have been described. We present the case of a middle-aged female who sustained an ultimately fatal cervical spine injury following a collision with a car whilst biking wearing a helmet. We discuss the literature regarding the protective effects of bicycle helmets, the relevance to cervical spine injury and legislation on mandatory use of helmets for injury prevention.
Equity Returns and Volatilities Before and After the 2007-08 Financial Crisis
Authors: Dedi Lidija , Yavas Burhan Faith 
Published: June 2017

Abstract
This paper investigates the linkages among equity markets of four European countries (Germany, France, Italy, UK) and the USA in terms of market returns and transmission of volatilities. We use daily exchange traded funds (ETF) data from January 2002 to March 2016 and utilize both a Multivariate Autoregressive Moving Average model (MARMA) and a Generalized Autoregressive Conditional Heteroskedasticity model (GARCH). We divided the data into three separate periods: before the 2007-08 financial crisis, during the crisis and after the crisis. The results show the existence of significant co-movement of returns in all three selected periods although some important differences before and after the financial crisis are noted. Findings also include marked increases in integration of the markets and thus diminishing diversification opportunities for investors. Volatilities appear to react strongly to market movements and their shocks fade away slowly in all five countries during the crisis period. There is also strong evidence of volatility spillovers particularly during and after the crisis periods.
Verstehen lernen
Authors: Weiß Thomas , Aslan Ednan , Shafey Ahmed Al , Ebrahim Ranja , Karagedik Ulvi , Musafi Nadire , Joldo-Salkic Minela 
Published: June 2017

Zusammenfassung:
Ausgehend von islamisch-theologischen Grundsatzfragen werden Möglichkeiten und Grenzen eines islamischen Religionsunterrichts im österreichischen Kontext erforscht. Begleitet wird diese Forschung in evangelischer Perspektive. Der Beitrag gibt Einblicke in den jeweiligen Forschungsstand.
Projekt: Osteuropäisches Religionsbuch
Authors: Reiher Dieter 
Published: June 2017

Zusammenfassung:
Der Artikel beschreibt die Voraussetzungen, den Prozess und das Ergebnis der internationalen Entwicklung eines gemeinsamen Schulbuchs für den Religionsunterricht. Hierbei bezieht der Artikel sich auf Erfahrungen und Protokollnotizen aus dem Schulbuchprojekt Miteinander feiern – voneinander Wissen. Feste im Kirchenjahr. In diesem Projekt arbeiteten VertreterInnen aus zahlreichen europäischen Ländern gemeinsam an einem Schulbuch, welches im Zeitraum von 2007 bis 2010 in vier verschiedenen Sprachen publiziert wurde. Im Artikel werden Probleme, aber auch Potenziale einer ökumenischen Zusammenarbeit im Bereich der Schulbuchproduktion aufgezeigt und potenzielle Anknüpfungsmöglichkeiten für weitere Projekte offengelegt.