3,437 research outputs found
Marrying Black girls by Hagen Engler
No full textThe Centre for Psychological Services and Career Development (PsyCaD) in partnership with the UJ Library cordially invite you to a discussion with the author of the book: Marrying Black Girls for Guys who aren’t Black: Hagen Engler. Former editor of FHM magazine, Hagen Engler is a columnist, blogger, wordsmith and author based in Sandton. Combining anecdotes, rhymes, essays and freestyle political discourse, the book charts his personal route through his marriage to a black woman, to an integrated society. The discussion will be led by: Portia Maruping – Counselling Psychologist, Centre for Psychological Services and Career Development (PsyCaD), U
Marrying Black girls by Hagen Engler
No full textThe Centre for Psychological Services and Career Development (PsyCaD) in partnership with the UJ Library cordially invite you to a discussion with the author of the book: Marrying Black Girls for Guys who aren’t Black: Hagen Engler. Former editor of FHM magazine, Hagen Engler is a columnist, blogger, wordsmith and author based in Sandton. Combining anecdotes, rhymes, essays and freestyle political discourse, the book charts his personal route through his marriage to a black woman, to an integrated society. The discussion will be led by: Portia Maruping – Counselling Psychologist, Centre for Psychological Services and Career Development (PsyCaD), U
Celtis durandii , Engler 1900
No full text<p> <i>Celtis durandii</i> Engler (1900: 22).</p> <p> <b>Type:</b> — AFRICA. Congo Republic, Bas-Congo, without date, fr., <i>P.Dupuis s.n.</i> (<b>lectotype, designated here</b>, BR barcode 0000008969224!; isolectotypes B barcode 10 0057861!, BR barcode 0000008968241!, BR barcode 0000008968890!).</p> <p> <b>Syntype:</b> —AFRICA. Tanzania, Tanga, Tanganyka, Usagara, 28 May 1807, <i>von Trotha 171</i> (syntype B barcode 100057860!).</p> <p> <b>Nomenclatural notes:</b> —When describing <i>C. durandii</i>, Engler(1900) cited the syntypes <i>Dupuis s.n.</i> (“ <i>in Herb. Brüssel</i> ”) and <i>von Trotha 171</i> (without specifying the herbarium). Polhill (1964) and Sattarian <i>et al.</i> (2006) stated that the <i>Dupuis</i> material was in B and BR, and the <i>von Trotha</i> material in B. Five samples were located, four from <i>Dupuis</i> and one from <i>von Trotha</i>. Considering that Engler (1900) did not specify the holotype and that Polhill (1964) and Sattarian <i>et al.</i> (2006) did not choose a lectotype, we designated the specimen at Herb. BR with barcode 0000008969224 as the lectotype (ICN Art. 9.3), because this specimen has more leaves than the others.</p> <p> <b>Taxonomic notes:</b> —Synonym of <i>Sparrea gomphophylla</i> (Fu <i>et al.</i> 2022).</p>Published as part of <i>Zamengo, Henrique Borges, Chamorro, Debora, Gaglioti, André Luiz & Pederneiras, Leandro Cardoso, 2023, Nomenclatural revision of the names of Celtis (Cannabaceae) described for Africa, and lectotypification of one Asian name, pp. 205-223 in Phytotaxa 603 (3)</i> on page 210, DOI: 10.11646/phytotaxa.603.3.1, <a href="http://zenodo.org/record/8166665">http://zenodo.org/record/8166665</a>
Celtis adolfi-friderici , Engler 1909
No full text<i>Celtis adolfi-friderici</i> Engler (1909: 308). <p> <b>Type:</b> — AFRICA. Congo Republic, Kivu, near Ruwenzori, Muera Forest, January 1908, fr., <i>G.W.J. Mildbraed 2242</i> (<b>lectotype, designated here</b>, B barcode 10 0057828!).</p> <p> <b>Syntypes:</b> —AFRICA. Congo Republic, Kivu, near Ruwenzori, January 1908, fl., <i>G.W.J. Mildbraed 2169</i> (syntypes B barcode 10 0057827!, B barcode 10 0057829!); AFRICA. Congo Republic, Kivu, near Ruwenzori, February 1908, fl., <i>G.W.J. Mildbraed 2725</i> (missing material).</p> <p> <b>Nomenclatural notes:</b> —When describing <i>C. adolfi-friderici</i>, Engler (1909) cited the syntypes <i>G.W.J. Mildbraed 2169</i>, <i>2242,</i> and <i>2725</i> without specifying the herbarium in which they were conserved. Polhill (1964) and Sattarian <i>et al.</i> (2006) stated that the syntypes are at B. When we contacted the curator of B, we were informed that specimen <i>G.W.J. Mildbraed 2725</i> is missing. Engler (1909) mentions that <i>C. adolfi-friderici</i> and <i>C. prantlii</i> are morphologically similar and that the size of the fruits is the main characteristic that distinguishes these taxa. Based on these comments, we designate the specimen at Herb. B with barcode 10 0057828 as the lectotype (ICN Art. 9.3.), because this sample has fruits.</p> <p> <b>Taxonomic notes:</b> —Accepted species (Sattarian <i>et al.</i> 2006).</p>Published as part of <i>Zamengo, Henrique Borges, Chamorro, Debora, Gaglioti, André Luiz & Pederneiras, Leandro Cardoso, 2023, Nomenclatural revision of the names of Celtis (Cannabaceae) described for Africa, and lectotypification of one Asian name, pp. 205-223 in Phytotaxa 603 (3)</i> on page 207, DOI: 10.11646/phytotaxa.603.3.1, <a href="http://zenodo.org/record/8166665">http://zenodo.org/record/8166665</a>
Zyganthera Engl. (Engler 1911
No full textSect. Zyganthera (N. E. Br.) Engl. (Engler, 1911: 49) Type (and only) species: Pseudohydrosme buettneri Engl. Zyganthera N. E. Br. (Brown in Thistleton-Dyer, 1901:160). Basionym Male flowers with stamens in pairs; distal half of spadix covered in sterile male flowers; ratio of female:male (including sterile male) spadix portions c.1:4Published as part of Cheek, Martin, Tchiengué, Barthélemy & van der Burgt, Xander, 2021, Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon, pp. 1-32 in PeerJ 9 on page 9, DOI: 10.7717/peerj.10689, http://zenodo.org/record/584707
Celtis henriquesii , Engler 1900
No full text<p> <i>Celtis henriquesii</i> Engler (1900: 22).</p> <p> <b>Type:</b> — AFRICA. Angola, October 1859, fl., <i>F.M.J. Welwitsch 6308</i> [BM, K: First-step lectotype, designated by Polhill in Kew Bull. 19(1): 140 (1964), as ‘isolectotypes’. <b>Second-step lectotype designated here</b>, BM barcode 000757297!; isolectotypes K (missing material), LISU barcode 221525!, P barcode 00253785!].</p> <p> <b>Syntypes:</b> —AFRICA. Angola, December 1898, fl., <i>Dekindt 1049</i> (syntypes P barcode 00253787!, P barcode 00253788!, P barcode 00253789!); AFRICA. Angola, Bumbo, October 1859, fl. and fr., <i>F.M.J. Welwitsch 6286</i> (syntypes K barcode 000243039!, LISU barcode 221527!, LISU barcode 221528!, P barcode 00253786!); AFRICA. Angola, Bumbo, October 1859, fl. and fr., <i>F.M.J. Welwitsch 6307</i> (syntypes LISU barcode 221526!, P barcode 00253784!).</p> <p> <b>Nomenclatural notes:</b> —When describing <i>C. henriquesii</i>, Engler (1900) cited the syntypes <i>Dekindt 1049</i>, <i>Welwitsch 6307</i>, <i>6308</i>, and <i>6286</i> without indicating the herbarium of deposit. Pohlhill (1964) performs a first lectotypification step by indicating that specimen “Welwitsch 6308” is deposited in BM and K. Considering that Pohlhill (1964) did not choose the lectotype, we propose a second lectotypification step (ICN Art. 9.17) and designate the BM specimen barcode 000757297 as lectotype (ICN Art. 9.3), since the K specimen was not located.</p> <p> <b>Taxonomic notes:</b> —Synonym of <i>C. africana</i> (Sattarian <i>et al.</i> 2006).</p>Published as part of <i>Zamengo, Henrique Borges, Chamorro, Debora, Gaglioti, André Luiz & Pederneiras, Leandro Cardoso, 2023, Nomenclatural revision of the names of Celtis (Cannabaceae) described for Africa, and lectotypification of one Asian name, pp. 205-223 in Phytotaxa 603 (3)</i> on page 212, DOI: 10.11646/phytotaxa.603.3.1, <a href="http://zenodo.org/record/8166665">http://zenodo.org/record/8166665</a>
Experiments on a system for the synthesis of virtual acoustic sources
No full textThe results are presented of a series of experiments designed to evaluate the subjective effectiveness of a digital signal processing system for the production of virtual acoustic sources. The signal processing system, described in an earlier paper, ensures that the acoustic signals produced in the region of a listener's ears by a pair of loudspeakers are substantially equivalent to the signals that would be produced by a virtual source at a prespecified angular location. In this work, attention is restricted to the horizontal plane containing the listener's ears, the pair of loudspeakers, and the intended location of the virtual source. The signal processing system is designed to be able to produce the desired signals at the listener's ears irrespective of the acoustical environment in which the sound is reproduced. The approach used automatically incorporates the design of inverse filters which compensate for the reverberation in a given acoustical environment. Experiments are therefore undertaken not only in anechoic conditions, but also in a listening room and in the interior of an automobile. The system is shown to be remarkably effective in producing accurately localized images over a wide range of angles to the front of a large population of experimental subjects. The system is not so effective in producing images to the sides of listeners and is not effective in producing images to the rear, these images usually being perceived at "mirror" angular locations to the front of listeners.</p
Die Verwaltung der Stadt Münster : von den letzten Zeiten der fürstbischöflichen bis zum Ausgang der französischen Herrschaft 1802-1813 /
No full textVita.Also issued in the series: Beiträge für die Geschichte Niedersachsens und Westfalens ; 1. jhrg., 2. Heft.Thesis (doctoral)--Königliche Universität zu Münster i. W.Bibliography: p. [6]-8.Mode of access: Internet
Celtis mildbraedii , Engler 1909
No full text<i>Celtis mildbraedii</i> Engler (1909: 309). <p> <b>Type:</b> — AFRICA. Congo Republic, Orientale prov., March 1908, fr., <i>G.W.J. Mildbraed 2897</i> [B: First-step lectotype designated by Polhill in Kew Bull. 19(1): 140 (1964). <b>Second-step lectotype designated here</b>, B barcode 10 0057907!; isolectotype B barcode 10 0057899!].</p> <p> <b>Syntypes:</b> —AFRICA. Congo Republic, “bei Mokoko ”, March 1908, <i>G.W.J. Mildbraed 2934</i> (missing material); AFRICA. Congo, “im Urwald von Kwa Muera nordwestlich von Beni”, January 1908, <i>G.W.J. Mildbraed 2150</i> (missing material).</p> <p> <b>Nomenclatural notes:</b> —When describing <i>C. mildbraedii</i>, Engler (1909) cited the syntypes <i>G.W.J. Mildbraed 2150</i>, <i>2897</i>, and <i>2934</i> without specifying the herbarium in which specimens were conserved. Polhill (1964) chose specimen <i>G.W.J. Mildbraed 2897</i> in B as lectotype. Two specimens of <i>Mildbraed 2897</i> were located in B. Considering that Polhill (1964) did not specify which of these was the lectotype, we propose a second lectotypification step (ICN Art. 9.17) and designate the specimen in Herb. B with barcode 10 0057907 as the lectotype of <i>C</i>. <i>mildbraedii</i>. We selected this specimen because it has a greater number of fruits. In an attempt to locate the remaining syntypes, we contacted the curators of A, B, BM, BR, HBG, K, P, PRE, and UPS (<i>Mildbraed</i> collection deposit herbaria, see Stafleu & Cowan 1981: 484) and were informed that no additional material was found.</p> <p> <b>Taxonomic notes:</b> —Accepted species (Sattarian <i>et al.</i> 2006).</p>Published as part of <i>Zamengo, Henrique Borges, Chamorro, Debora, Gaglioti, André Luiz & Pederneiras, Leandro Cardoso, 2023, Nomenclatural revision of the names of Celtis (Cannabaceae) described for Africa, and lectotypification of one Asian name, pp. 205-223 in Phytotaxa 603 (3)</i> on page 213, DOI: 10.11646/phytotaxa.603.3.1, <a href="http://zenodo.org/record/8166665">http://zenodo.org/record/8166665</a>
Striga welwitschii Engler 1897
No full text<p> <i>Striga welwitschii</i> Engler (1897: 514)</p> <p> (synonym of <i>S. bilabiata</i> (Thunberg) Kuntze (1898: 240) subsp. <i>bilabiata</i>)</p> <p> Lectotype (designated here):— ANGOLA. Huilla, Dec. 1859, <i>F.W.J. Welwitsch</i> 5820 (BM, barcode BM000930767 [image!], Fig. 4). Residual syntypes: ANGOLA, Huilla, Dec. 1859, <i>F.W.J. Welwitsch</i> 5820 (LISU, barcode LISU223162 [image!] & PRE, barcode PRE0568417-0 [image!]); ANGOLA, Huilla, Lopolo, January 1860 & Quilengues, February 1860, <i>F.W.J. Welwitsch</i> 5821 (BM, barcode BM000930768 [image!], LISU, barcode LISU223161 [image!] & PRE, barcode PRE0568418-0 [image!]); ANGOLA, <i>Welwitsch</i> 5820 (K, barcode K000379772 [image!]; P, barcode P00573246 [image!] & COI, barcode COI00005701 [image!]); ANGOLA, <i>Welwitsch</i> 5821 (K, barcode K000379773 [image!]; P, barcode P00573247 [image!] & COI, barcode COI00005702 [image!]).</p> <p> Notes: In the protologue of the name <i>S. welwitschii</i>, the type citation was given as ‘ Angola (<i>Welwitsch</i> n. 5820, 5821)’. The specimens from Angolan collections of Friedrich Welwitsch during the period 1853 – 1861, with two numbers (5820 and 5821), consists of many gatherings, represent the syntypes of the name. After the court case on the Angolan collections of Welwitsch in 1875, the main set of his collections along with the original notes and descriptions were returned to Lisbon from London during 1876 – 1879 (Tavares 1959). The second-best set was kept in London (at BM). The work of separation of Lisbon set (everything except BM set) for other herbaria probably started in 1877 (Tavares 1967). The name <i>S. welwitschii</i> was published in 1897 by the German botanist Heinrich Gustav Adolf Engler. According to Stafleu & Cowan (1976), the type specimens of names published by H.G.A. Engler are at B (mostly destroyed), duplicates at various depositories including BM, K and P. In search of the relevant specimens of this name, we traced none at B, but at LISU (barcodes LISU223161! and LISU223162!), BM (barcodes BM000930768! and BM000930767!), K (barcodes K000379772! and K000379773!), P (barcodes P00573246! and P00573247!), PRE (barcodes PRE0568417-0 and PRE0568418-0) and COI (barcodes COI00005701! and COI00005702!). At LISU, BM and PRE, the traced representatives of the number ‘ <i>Welwitsch</i> 5820’ possess collection details as, ‘ Angola, Huilla, Dec. 1859, <i>F.W.J. Welwitsch</i> 5820’ and the representatives of the number ‘ <i>Welwitsch</i> 5821’ possess it as ‘ Angola, Huilla, Lopolo, January 1860 & Quilengues, February 1860, <i>F.W.J. Welwitsch</i> 5821’. Interestingly, the specimens represent <i>Welwitsch</i> 5820 at LISU (barcode LISU223162) and BM (barcode BM000930767) have distinct labels, with the name ‘ <i>Striga thymoides</i> Welw. ’ and a brief morphological description. In many cases, Welwitsch wrote new species names on the specimens, but kept unpublished. Many of such invalid names were later validly published by other authors. Just a year before to the publication of Heirn’s <i>Catalogue</i> (Hiern 1898), Engler validly published the name <i>S. welwitschii</i> based on <i>Welwitsch</i> 5820 & 5821. Because of that, Hiern did not bother about <i>S. thymoides</i> and followed <i>S. welwitschii</i> in his <i>Catalogue</i>. The specimens traced at K, P and COI do not have these much elaborate labels. The name <i>S. thymoides</i> and associated morphological description are altogether absent in these sheets. They bear only the details ‘Angola’ as collection locality and the number either <i>Welwitsch</i> 5820 or 5821. In this context, the better-preserved specimen at BM represents the number <i>Welwitsch</i> 5820 (barcode BM000930767) is selected here as the lectotype of the name <i>S. welwitschii</i>. Welwitsch has not followed a definite number system and included different gatherings under the same number to his collections (Albuquerque <i>et al.</i> 2009; Figueiredo & Smith 2020). So, all the remaining specimens should be residual syntypes only.</p>Published as part of <i>Arunraj, Parappurakkal Thazhe & Sanjai, Viswanathamandiram Natarajakaimal, 2023, Lectotypifications in Micrargeria and Striga (Orobanchaceae), pp. 237-243 in Phytotaxa 612 (2)</i> on pages 240-241, DOI: 10.11646/phytotaxa.612.2.8, <a href="http://zenodo.org/record/8323546">http://zenodo.org/record/8323546</a>
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