F. Schleiermacher : Caractéristiques et critiques de A.-W. Schlegel et F. Schlegel (1801)

Schlegel, Friedrich; Schleiermacher, Friedrich; Ast, Friedrich; Schlegel, August Wilhelm von; Bernhardi, August Ferdinand; Dilthey, Wilhelm; Thouard, Denis

doi:10.4000/books.septentrion.95442

Cited by 4 publications

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“…Simulations of the optical extinction spectra were performed using the discrete dipole approximation (DDA) implemented in DDSCAT 7.2.2 software. 26,27 The wavelength-dependent refractive indices of gold and bulk magnetite Fe 3 O 4 were taken from Johnson and Christy 28 and Schlegel et al, 29 respectively. The interdipole distance was kept as small as 0.8 nm to ensure full convergence of the calculations.…”

Section: Methodsmentioning

confidence: 99%

Hybrid Au–Fe₃O₄ Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

et al. 2013

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In this work, we report on the synthesis of hybrid Au−Fe 3 O 4 nanoparticles (NPs) using a novel one-pot synthesis method that makes use of triethylene glycol as a solvent, a reducing agent, and a stabilizing layer. The produced nanoparticles consist of Au cores decorated with magnetite Fe 3 O 4 nanoparticles. Optical absorption measurements combined with numerical simulations showed that the Au− Fe 3 O 4 nanoparticles exhibit a localized surface plasmon resonance clearly red-shifted with respect to that of bare Au nanoparticles. This strong plasmonic resonance is exploited to produce surface-enhanced Raman scattering (SERS) from both the organic molecules and the iron oxide surrounding the Au cores. We found that the SERS signal exhibits strong temporal fluctuations which are used to identify the origin of the observed Raman lines. In particular, we clearly point out the presence of an iron hydroxide (γ-FeOOH) layer at the surface of the Fe 3 O 4 nanoparticles forming the shell. This result is supported by numerical simulations of the plasmonic near field generated by the Raman probe. Moreover, we investigate the light-induced phase transition from magnetite to hematite (α-Fe 2 O 3 ). Owing to the strong SERS effect we were able to detect the formation of diiron-oxo bonds during the phase transition. These bonds are ascribed to the presence of a mixed magnetite/maghemite phase. We thus propose a new scheme where the phase transition is triggered by the iron hydroxide surface layer. Such a transition is here studied for the first time in Au−Fe 3 O 4 hybrid nanoparticles where the gold cores act as plasmonic nanoheaters responsible for the thermally induced phase transition.

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Section: Methodsmentioning

confidence: 99%

Hybrid Au–Fe₃O₄ Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

et al. 2013

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“…4 As per the "Research and Development Statistics, 2019-20 "of Department of Science and Technology, of India, the country has 56,747 women directly engaged in R&D activities which constitute 16.6% of the total R&D manpower. 5 This is a miniscule number compared to the total women population in India.…”

Section: Level Of Participation Of Womenmentioning

confidence: 99%

Gender Issues in the Scientific Milieu–Approaches and Solutions

Rajith¹,

Rajith²

2022

J. Electrochem. Soc.

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From time immemorial, gender discrimination has been prevalent all over the world. This discrimination based on sex had sprouted from the male autocracy and dominancy and is engulfed in almost all sectors, whether it be domestic or official and this is well rooted in the scientific research field as well. Even though this is a global problem, it is more pronounced in developing and underdeveloped countries. Considered in a global perspective, women account for a minority of the world’s researchers when compared to their male counterparts. Here we discuss the problems faced by women researchers, societal conditions that aggravate these problems, and plausible solutions by which more women can be brought to the limelight in the research field.

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“…38 In addition to Archeology, which carries the origin -in Greek -even in its name, new academic disciplines devoted to the study of beginnings emerged to come to the rescue of the troubled present by exploring and, if need be, by inventing the "ersten Ursprung" of the more glorious past. Historians, however, usually resisted the temptation to study, as Schlegel did, "Erinnerungen aus uralter Vorzeit" 39 as history. But while Barthold Georg Niebuhr and Leopold von Ranke laid the methodological ground for historical research by sorting out fiction from historical fact, 40 the historians of German literature were much more caught up in the fictionalized origin of the German people.…”

Section: The Major Criterion Of This Test Is What Germans Call Ursprünglichkeit (Originality)mentioning

confidence: 99%

The Rhetoric of Origin: Language and Exclusion in Historical Perspective

Seeba¹

2004

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rhabarberrhabarber, they probably have no idea that the foreign vegetable they refer to carries in its name, rha barbaron (rhubarb), the very foreignness that the sound of the non-word evokes. Adults in Greek antiquity introduced the onomatopoetic sound when they characterized all non-Greek speaking foreigners as barbaroi. Thus, barbarian was a language-based denotation for all foreigners, including those who are not at all barbaric. The moral tainting of linguistic difference came much later-and with it the linguistic exclusion, which will be the topic of my talk today.I take my cues from the printed program of this conference which states that "the concepts of a national community based on ancestral lineage and cultural heritage have been called into question." In the following, I would like to distinguish more clearly between blood line on the one hand and cultural, especially linguistic tradition on the other and suggest that, while the rhetoric of the first is losing, the rhetoric of the second is gaining momentum. The recent culture wars concerning bilingualism in the U.S. are only one strong indication of this trend. 1 Another is the fact that many of the 100,000 immigrants from the former Soviet Union who were identified as Jews in Russia are now treated as Russians in Germany, because their ethnic identification gave way to linguistic identification.If we follow Benedict Anderson's assertion "that from the start the nation was conceived in language, not in blood," 2 we must, however, also recognize the obvious, namely that the German evidence of racist exclusion on the basis of blood is so overwhelming that the exclusion on the basis of language has received much too little attention. Germany's long tradition of basing identity on deutsches Blut, i.e. on ius sanguinis as opposed to ius soli as it is practiced in the U.S., was modified only recently in new citizenship laws. As a consequence, the question of whether it was biological or linguistic essentialism that has shaped the German discourse on national identity could gain new currency. In fact, recent attempts at linguistic essentialism recall a philosophical tradition going back all the way to Herder's and Wilhelm von Humboldt's idea that language is the vessel for "eine eigenthümliche Weltansicht" 3 (a particular world view) and to the Romantic concept of release from alienation through language, as in Novalis's famous line "Dann fliegt von Einem geheimen Wort / Das ganze verkehrte Wesen fort." 4 (Then with the help of a single, secret word the entire falseness dissipates) The belief in the redemptive power of language seems to lurk in the backs of minds of people who try to stem the tide of immigrants by questioning their degree of language proficiency and thus their ability to fully participate in what the CDU politician Friedrich Merz called in 2000 "deutsche Leitkultur" as a gauge for the integration of foreigners. 5 Their concern about languagebased cultural values, which reflect a particularly German Weltansicht, implies a belief in the purit...

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F. Schleiermacher : Caractéristiques et critiques de A.-W. Schlegel et F. Schlegel (1801)

Cited by 4 publications

References 0 publications

Hybrid Au–Fe₃O₄ Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

Hybrid Au–Fe₃O₄ Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

Gender Issues in the Scientific Milieu–Approaches and Solutions

The Rhetoric of Origin: Language and Exclusion in Historical Perspective

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F. Schleiermacher : Caractéristiques et critiques de A.-W. Schlegel et F. Schlegel (1801)

Cited by 4 publications

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Hybrid Au–Fe3O4 Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

Hybrid Au–Fe3O4 Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

Gender Issues in the Scientific Milieu–Approaches and Solutions

The Rhetoric of Origin: Language and Exclusion in Historical Perspective

Contact Info

Product

Resources

About

Hybrid Au–Fe₃O₄ Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties

Hybrid Au–Fe₃O₄ Nanoparticles: Plasmonic, Surface Enhanced Raman Scattering, and Phase Transition Properties