1,359,232 research outputs found
Der Erdgeist im Faust : Gespräch zweier Goethefreunde / von Georg Witkowski
No full textDER ERDGEIST IM FAUST : GESPRÄCH ZWEIER GOETHEFREUNDE / VON GEORG WITKOWSKI
Der Erdgeist im Faust : Gespräch zweier Goethefreunde / von Georg Witkowski (1)
Cover (1)
Chapter (3)
Der Erdgeist im Faust (4
Goethes Faust : Wörterbuch / Hrsg. von Georg Witkowski
No full textGOETHES FAUST : WÖRTERBUCH / HRSG. VON GEORG WITKOWSKI
Goethes Faust : Wörterbuch / Hrsg. von Georg Witkowski (1)
Cover (1)
Titelseite (4)
Inhaltsübersicht / Abkürzungen (5)
Faust-Wörterbuch - A-E (6)
Faust-Wörterbuch - F-K (22)
Faust-Wörterbuch - L-R (42)
Faust-Wörterbuch - S-Z (57
Declaration of Intention of Louise von Witkowski
No full textDeclaration of Intention to become a citizen of the United States, as filled out and signed by: Louise von Witkowski
Applicant age:52
Occupation: Housekeeper
Country of Origin:Germany
Date of Birth: 19th September 1864
Sailed to the US aboard the vessel:Unknown
City of residence at time of declaration: Absecon NJ
Declaration submitted and sworn on date: 11th April 191
Kinetic dataset - aqueous oxidation of aliphatic acids by hydroxyl radical
No full textIn the five spreadsheets included in this dataset, the values of the bimolecular reaction rate coefficients for the aqueous oxidation of aliphatic carboxylic acids (protonated forms), carboxylate anions (deprotonated forms) by hydroxyl radical (OH), and their activation parameters are compiled. These data include the literature data (cited within the readme.txt file) and the values of bimolecular reaction rate coefficients. The first spreadsheet (298K_literature_refs) contains raw literature data, compiled bimolecular reaction rate coefficients at 298K with literature references. The second spreadsheet (298K_SAR) contains the reviewed data, used for developing and optimizing a kinetic structure-activity relationship model. The third spreadsheet (T_dept_literature_refs) contains raw literature data, compiled bimolecular reaction rate coefficients, measured between 278 and 328 K. The fourth spreadsheet contains the reviewed data, bimolecular reaction rate coefficients, measured between 278 and 328 K, with outliers removed and missing values (when different temperatures were used between studies) filled out with values calculated using the Arrhenius expression – these data were used for developing and optimizing a kinetic structure-activity relationship model. The fifth spreadsheet (T_dept_activaton_only) lists the values of activation parameters derived via the Arrhenius expression for the carboxylic acids under investigation. </p
Cymatosirella minutissima Dabek, Witkowski & Sabbe 2013, comb. nov.
No full textCymatosirella minutissima (Sabbe & Muylaert) Dąbek, Witkowski & Sabbe comb. nov. Basionym: Cymatosira minutissima Sabbe & Muylaert in Sabbe, K., Vanelslander, B., Ribeiro, L., Witkowski, A., Muylaert, K. & Vvyerman, W. (2010: 246, figs 17–20, 28, 31). For a detailed description of this species, see Sabbe et al. (2010).Published as part of Dąbek, Przemysław, Sabbe, Koen, Witkowski, Andrzej, Archibald, Colin, Kurzydłowski, Krzyszof J. & Zgłobicka, Izabela, 2013, Cymatosirella Dąbek, Witkowski & Sabbe gen. nov., a new marine benthic diatom genus (Bacillariophyta) belonging to the family Cymatosiraceae, pp. 42-56 in Phytotaxa 121 (1) on page 50, DOI: 10.11646/phytotaxa.121.1.2, http://zenodo.org/record/507946
Dąbek, P., Sabbe, K., Witkowski, A., Archibald, C., Kurzydłowski, K. & Zgłobicka, I. (2013) Cymatosirella Dąbek, Witkowski & Sabbe gen. nov., a new marine benthic diatom genus (Bacillariophyta) belonging to the family Cymatosiraceae. Phytotaxa 121 (1): 42-56.
No full textDąbek, P., Sabbe, K., Witkowski, A., Archibald, C., Kurzydłowski, K., Zgłobicka, I. (2014): Dąbek, P., Sabbe, K., Witkowski, A., Archibald, C., Kurzydłowski, K. & Zgłobicka, I. (2013) Cymatosirella Dąbek, Witkowski & Sabbe gen. nov., a new marine benthic diatom genus (Bacillariophyta) belonging to the family Cymatosiraceae. Phytotaxa 121 (1): 42-56. Phytotaxa 183 (2): 120-120, DOI: 10.11646/phytotaxa.183.2.6, URL: http://dx.doi.org/10.11646/phytotaxa.183.2.
Gliwiczia tenuis Kulikovskiy, Lange-Bertalot & Witkowski 2013, sp. nov.
No full textGliwiczia tenuis Kulikovskiy, Lange-Bertalot & Witkowski sp. nov. Figs 43–66 Frustules with a horse shoe-like internal cavum at both raphid and rapheless valve as characteristic of the genus. Valves broadly elliptical with broadly rounded ends. Length 7–13 µm, breadth 4.6–8 µm. LM, raphe valve (Figs 56–58): Raphe filiform, straight central ends slightly expanded, distal ends indistinct. Axial area narrow, linear. Central area forming a narrow, ca. 0.5 µ m broad stauros at both sides but unilaterally obscured by the elliptical cavum. Striae radiate throughout, becoming progressively stronger radiate to the ends, 28–33 in 10 µm. Areolae not discernible. LM, rapheless valve (Figs 43–55): Axial and central area merging into a wide elliptical space, striae therefore restricted to a marginal zone. No stauros interrupts the striae opposite to the side with the cavum. Striae 21–24 in 10 µm. Areolae not discernible. SEM, raphless valve, internal view (Figs 59–64): Sternum with raphe vestiges visible as a shallow elevation above the central axial area. The cavum is comparatively short, restricted to the marginal zone. A stauros is barely or indistinctly developed. A gap between the striae opposite to the cavum is lacking regularly. Areolae 50–60 in 10 µm. SEM, raphe valve, internal view (Fig. 65): Central raphe ends deflected clearly to opposite sides. The stauros together with the raphe sternum is strongly elevated above the internal valve surface. Cavum present extended from the centre nodule to the valve margin. Areolae uniseriate, small, approximately circular. SEM, raphe valve, external view (Fig. 66): Raphe with small central pores and more or less distinctly to opposite sides deflected distal ends that may be pore-like expanded at junction between valve face and mantle. The central area in a form of stauros appears clearly asymmetrical becoming expanded towards the margin at that side where the cavum occurs internally. Areola foramina are circular and open. Type: slide no. 15645m (holotypus here designated see Fig. 46) in collection Maxim Kulikovskiy, I.D. Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences (IBIW) 20.07.1965, leg. A.P. Skabitschewsky. Isotype: slide no. 15645a in collection Andrzej Witkowski, Institute of Marine Sciences, University of Szczecin (SZCZ). Distribution: As yet known from the Lake Baikal. Etymology: tenuis in Latin means smaller one.Published as part of Kulikovskiy, Maxim, Lange-Bertalot, Horst & Witkowski, Andrzej, 2013, Gliwiczia gen. nov. a new monoraphid diatom genus from Lake Baikal with a description of four species new for science, pp. 1-16 in Phytotaxa 109 (1) on pages 6-8, DOI: 10.11646/phytotaxa.109.1.1, http://zenodo.org/record/507867
Gliwiczia latarea Kulikovskiy, Lange-Bertalot & Witkowski 2013, sp. nov.
No full textGliwiczia latarea Kulikovskiy, Lange-Bertalot & Witkowski sp. nov. Figs 67–88 Frustules with a horse shoe-like internal cavum at both raphid and rapheless valve as characteristic of the genus. Valves broadly elliptical with broadly rounded ends. Length 11–15 µm, breadth 6.5–9.5 µm. LM, raphe valve (Figs 79–83): Raphe filiform, straight, central ends slightly expanded, distal ends hardly noticeably deflected to opposite sides. Axial area narrow, linear, barely widened proximally. Central area forming a narrow, ca. 1 µm broad stauros at both sides but unilaterally masked towards margins by the elliptical cavum. Striae radiate throughout but becoming progressively stronger radiate to the ends 27-33 in 10 µm. Areolae difficult to discern, more than 30 in 10 µm. LM, rapheless valve (Figs 67–78): Axial and central area merging to a wide elliptical space, striae therefore restricted to a marginal zone. Nevertheless on the side opposite to the cavum a short stauros is clearly marked. Striae 21–24 in 10 µm. SEM, raphe valve, internal view (Fig. 84): Central raphe ends deflected clearly to opposite sides. The stauros together with the raphe sternum is elevated above the internal valve surface. Cavum in circle shape present extended on the one side of the sternum. Areolae uniseriate, small, approximately circular or elongated. SEM, rapheless valve, internal view (Figs 85–88): The internal nonperforated area is not simply flat but a narrow sternum and similarly to the stauros relief-like elevated. Vestiges of a raphe are present. The cavum appears prominently extended ca. 1/4 of the valve width. Areolae, ca. 40 in 10 µ m, are occluded by membranes. Type: slide no. 15645m (holotypus here designated see Fig. 68) in collection Maxim Kulikovskiy, I.D. Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences (IBIW) 20.07.1965, leg. A.P. Skabitschewsky. Isotype: slide no. 15645a in collection Andrzej Witkowski, Institute of Marine Sciences, University of Szczecin (SZCZ). Distribution: only found in Lake Baikal associated with the other three taxa described here as new. Etymology: latarea in Latin means possessing a broad areaPublished as part of Kulikovskiy, Maxim, Lange-Bertalot, Horst & Witkowski, Andrzej, 2013, Gliwiczia gen. nov. a new monoraphid diatom genus from Lake Baikal with a description of four species new for science, pp. 1-16 in Phytotaxa 109 (1) on pages 8-10, DOI: 10.11646/phytotaxa.109.1.1, http://zenodo.org/record/507867
A Bluetooth Scatternet for the Khepera Robot
No full textDu JL, Witkowski U, Rückert U. A Bluetooth Scatternet for the Khepera Robot. In: 4th International Symposium on Autonomous Minirobots for Research and Edutainment (AMiRE). Buenos Aires, Argentina; 2007: 189-195.Radio-based communication plays a vital role in multi-robot systems.
Bluetooth is an energy-efficient communication technology suited for resourcelimited mini-robots such as the Khepera. However, the maximum number of nodes in a Bluetooth piconet is limited, while scatternets - networks of piconets - have not been fully specified. In this paper we present a Bluetooth scatternet using Bluetooth communication sticks developed in our research group. In our solution, bridge nodes carrying two of such Bluetooth sticks are used to interconnect piconets. Beside the developed hardware, issues such as routing as well as topology control are addressed. Finally, data rate and latency measurements are presented for the implemented solution
- …
