207,406 research outputs found
From self assembled monolayers to clickable gold nanoparticles
No full textThe aim of the present PhD thesis was the investigation of the behavior of gold nanoparticle stabilizing oligo thioether ligands on gold surfaces and further on to develop a protocol for the directed assembly of mono functionalized gold nanoparticle into defined oligomer structures.
Outline
The present cumulative PhD thesis consists of the following parts:
In the Introduction the research field of gold nanoparticles is presented with to point out their unique electronic and physical properties. The second focus will be on the controlled interlinking and functionalization of gold nanoparticles using click chemistry and their potential applications, which will be submitted as a review article.
Within Concept and Strategy the goals of the research project are introduced and the concepts and outputs of the resulting publications are presented.
The Publications are accumulated with their respective Supporting Information, in the order in which they were prepared:
“Loops versus Stems: Benzylic Sulfide Oligomers Forming Carpet Type Monolayers“ F. Sander, T. Peterle, N. Ballav, F. Wrochem, M. Zharnikov, M. Mayor J. Phys. Chem. C, 2010, 114, 4118 – 4125.
“Add a Third Hook: S-Acetyl Protected Oligophenylene Pyridine Dithiols as Advanced Precursors for Self-Assembled Monolayers“ F. Sander, J. P. Hermes, M. Mayor, H. Hamoudi, M. Zharnikov PCCP, 2013, 15, 2836 – 2846.
“Dumbbells, Trikes and Quads - Click Gold Nanopartricles together“ F. Sander, U. Fluch, J. P. Hermes and M. Mayor Small 2014, 10, 349 – 359.
“Click Chemistry with Gold Nanoparticles – A Tool for Functionalization, Interlinking and Labeling” Fabian Sander and Marcel Mayor, manuscript prepared for submission.
Finally, within Conclusion and Outlook the main results are briefly summarized and further potential research is proposed
What Is It Like to Be a Bat-Author? Viktor Pelevin's Empire V
No full textIn this paper, Viktor Pelevin's novel Empire V (2006) is analysed, with its main concern with the status of language, in fiction as well as in contemporary Russian culture. The work is seen as a kind of sequel to Generation 17: whereas that novel predominantly focused on the problem of consciousness, its problematical relation with reality, but expressed this problem in language, in Empire V the problem of language as the form of consciousness is foregrounded; inevitably thus the status of the text we are reading and the relation it has to its author is problematized - as is the relation it has to its reader. It is a text that reflects on what language, its material, does. The possibility is suggested that this novel tries to rind a way out of postmodernism's anxieties about the conscious personality being an illusion, created by his own language.</p
What Is It Like to Be a Bat-Author? Viktor Pelevin's Empire V
No full textIn this paper, Viktor Pelevin's novel Empire V (2006) is analysed, with its main concern with the status of language, in fiction as well as in contemporary Russian culture. The work is seen as a kind of sequel to Generation 17: whereas that novel predominantly focused on the problem of consciousness, its problematical relation with reality, but expressed this problem in language, in Empire V the problem of language as the form of consciousness is foregrounded; inevitably thus the status of the text we are reading and the relation it has to its author is problematized - as is the relation it has to its reader. It is a text that reflects on what language, its material, does. The possibility is suggested that this novel tries to rind a way out of postmodernism's anxieties about the conscious personality being an illusion, created by his own language.</p
What Is It Like to Be a Bat-Author? Viktor Pelevin's Empire V
No full textIn this paper, Viktor Pelevin's novel Empire V (2006) is analysed, with its main concern with the status of language, in fiction as well as in contemporary Russian culture. The work is seen as a kind of sequel to Generation 17: whereas that novel predominantly focused on the problem of consciousness, its problematical relation with reality, but expressed this problem in language, in Empire V the problem of language as the form of consciousness is foregrounded; inevitably thus the status of the text we are reading and the relation it has to its author is problematized - as is the relation it has to its reader. It is a text that reflects on what language, its material, does. The possibility is suggested that this novel tries to rind a way out of postmodernism's anxieties about the conscious personality being an illusion, created by his own language.</p
Comparison of Growth in Pike-Perch (Sander lucioperca) and Hybrids of Pike-Perch (S. lucioperca) × Volga Pike-Perch (S. volgensis)
No full textGrowth of intensively cultured pike-perch Sander lucioperca (L.) and hybrids of pike-perch females × Volga pike-perch (S. volgensis Gmelin, 1789) males (1.75 g) were compared in a 35-day experiment. Fish were sorted into three groups (50 fish/aquarium): S. lucioperca grown separately (Group P), hybrids grown separately (Group H), and a mixed group of 25 S. lucioperca (Group Mp) grown together with 25 hybrids (Group Mh). The stocking density was 0.44 g/l. Final body weights were 6.83 g, 6.54 g, 5.17 g, and 4.84 g, and specific growth rates were 3.9%/day, 3.75%/day, 3.1%/day, and 2.89%/day, for groups Mp, P, Mh, and H, respectively. The weight, length, and specific growth rates of the S. lucioperca were significantly higher (p<0.05) than those of the hybrids, whether grown separately or together. The feed conversion rate of the hybrids grown separately was significantly higher (1.28 g/g) than all other groups. Further investigation is needed to study the growth performance of larger hybrids, to compare the hybrid with S. volgensis, and to investigate the possibility of cross hybridization
Generation of time-limited signals in the nonlinear Fourier domain via b-modulation
No full textCurrent modulation techniques for the nonlinear Fourier spectrum do not offer explicit control over the pulse duration in the time domain. To address this issue, it is proposed to modulate the b-coefficient instead of the reflection coefficient.© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Team Sander Wahl
Discrete Darboux based fast inverse nonlinear Fourier transform algorithm for multi-solitons
No full textA fast algorithm for constructing multi-solitons with linear complexity in the number of samples and eigenvalues is introduced. The algorithm is shown to be significantly faster than the conventional Darboux transform in a numerical example, with acceptable error.Accepted Author ManuscriptTeam Raf Van de PlasTeam Sander Wahl
1-Phenyl-1,2,4,6-cycloheptatetraene: The missing intermediate of the diphenylcarbene to fluorene rearrangement
No full textThe photochemistry of diphenylcarbene 5, matrix-isolated in argon at 3-5K was investigated by UV-Vis, IR, and EPR spectros-copy. Although carbene 5 proved to be stable toward broadband UV irradiation, it slowly rearranges to 1-phenyl-1,2,4,6-cycloheptatetraene 8 during irradiation with the intense light of a 445-nm diode laser. Other intermediates were not observed. Allene 8 is the key intermediate that was missing in the proposed mechanism of the rearrangement of 5 to fluorene 7
Quantifying the contrast of the human locus coeruleus in vivo at 7 Tesla MRI
No full textKlodiana-Daphne Tona, Matthias J. P. van Osch, Sander Nieuwenhuis, & Max C. Keuken (2019) PLoS ON
Sander lucioperca
No full text<i>Sander lucioperca</i> (Linnaeus, 1758), Pike-perch. <p> <i>Perca lucioperca</i> Linnaeus 1758: 289.</p> <p> <i>Sander lucioperca</i> — Kottelat and Freyhof 2007: 534.</p> <p> <i>Stizostedion lucioperca</i> — Reshetnikov et al. (2003b): 69.</p> <p> <b>Material examined.</b> Table 1</p> <p>Presence of spindle-shaped body, canine teeth in the anterior portion of each jaw, and 80–97 scales on lateral line. It was observed in large rivers 100 km from the source (Ivanchev and Ivancheva 2010). Its occurrence rate is 8.3% and the share in catches is low.</p>Published as part of <i>Artaev, Oleg & Ruchin, Alexander B., 2017, The ichthyofauna of the Moksha River, a tributary of the Volga river basin, Russia, pp. 185-202 in Check List 13 (4)</i> on page 200, DOI: 10.15560/13.4.18
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