86,567 research outputs found
Nomada rostrata HERRICH-SCHAFFER 1839
No full text<i>Nomada rostrata</i> HERRICH- SCHÄFFER, 1839, Schnauzen-Wespenbiene <p>N a c h w e i s e: Bgl., Bez. Neusiedl am See, Gemeinde Neusiedl am See, N47°56', E16°51', 135 m SH, am Rande des Naturschutzgebiets Kalvarienberg, 29.V.2017, 1♁, 19.V.2018, 1♁, leg., det. & coll. H. Wiesbauer; Bgl., Bez. Neusiedl am See, Jois, Jungerberg, N 47°57,7', E 16°46,8', 13.V.2022, 1♁ leg., det. & coll. S. Hopfenmüller.</p> <p> <i>Nomada rostrata</i> ist ein Brutparasit der Sandbiene <i>Andrena nasuta</i> GIRAUD, 1863 bei der eine sehr enge Bindung vorliegt, da keine weiteren Wirte der Wespenbiene bekannt sind (WIESBAUER 2023). Die Schnauzen-Wespenbiene ist eine wärmeliebende Art, die in Österreich bislang aus Wien, Niederösterreich und Kärnten gemeldet wurde (GUSENLEITNER et al. 2012). In Niederösterreich ist die Biene nur aus Gebieten bekannt, in denen es grosse Populationen des Wirtes gibt u.a. im Lössgebiet zwischen Krems und Hadersdorf und in den Sandgebieten des Marchfeldes (unpubliziert, HW).</p> <p> Wichtigste Voraussetzung für das Vorkommen des Wirtes ist ein reiches Pollenangebot der Ochsenzunge (<i>Anchusa</i>), einer Ruderalpflanze, deren Entwicklung wiederum durch die akkurate und frühe Wegrand- und Böschungsmahd stark eingeschränkt wird (WIESBAUER 2023). Zudem braucht die Pflanze ein gewisses Mass an Störungen, um überhaupt keimen zu können (PAROLLY & ROHWER 2016). Solche Voraussetzungen sind auf einer ehemaligen Ackerfläche im Nahbereich des Naturschutzgebiets Kalvarienberg seit etwa zehn Jahren grossflächig gegeben. Eine Folge der günstigen Entwicklung war ein rasches Anwachsen der Populationen der Sandbiene und ihrer seltenen Kuckucksbiene.</p>Published as part of <i>S, Victor, Hopfenmüller, Sebastian, Schoder, Sabine, Wallner, Walter, Zettel, Herbert, Wiesbauer, Heinz, Meyer, Philipp & Pachinger, Bärbel, 2023, Hylaeus euryscapus FÖRSTER, 1871 (Hymenoptera, Apiformes) neu für Österreich und weitere Wildbienen-Neufunde für das Burgenland, pp. 647-661 in Linzer biologische Beiträge 54 (2)</i> on page 653, DOI: <a href="http://zenodo.org/record/10414653">10.5281/zenodo.10414653</a>
Holopyga generosa
No full textHolopyga generosa (FÖRSTER, 1853) N a c h w e i s e: Altes Dianator, F&B S01, N 48°10,0', E 16°11,65', 390 m SH, 21.VII.2016, 3♀♀, leg. H. Zettel & F. Seyfert. Holopyga generosa ist eine häufige Art, die in ihrer Färbung manchen Arten der Gattung Hedychrum ähnlich ist. Sie ist transpaläarktisch von Europa und Nordafrika bis China verbreitetet (LINSENMAIER 1959). Aus Österreich ist sie aus allen Bundesländern ausser Vorarlberg nachgewiesen, wegen der verworrenen Synonymien in der Gattung öfter unter den Namen H. amoenula DAHLBOM, 1845, H. ovata DAHLBOM, 1854 oder H. gloriosa amoenula (z.B. ZIMMERMANN 1954, FRANZ 1982, NEUMAYER et al. 1999). Man findet diese Goldwespe in Österreich an Xerothermstandorten von Mai bis August auf Blüten von Apiaceae, Asteraceae, Euphorbiaceae und Rosaceae. Trotz dieser einfachen Fundumstände blieb die ungewöhnliche Biologie dieser Goldwespe bis in unsere Tage unbekannt. Erst VEENENDAAL (2012) entdeckte, dass die Weibchen ihre Eier in die Larven von Wanzen (Heteroptera) legen. Zur Entwicklung von H. generosa müssen diese danach von der Grabwespe Astata boops (und möglicherweise auch von verwandten Arten) erbeutet und als Larvenproviant in ihr Nest getragen werden. Kürzlich gewonnenen molekulare Daten weisen darauf hin, dass es in Mitteleuropa zwei Zwillingsarten geben könnte, wodurch auch für Österreich das Vorkommen einer zusätzlichen Spezies der Gattung Holopyga wahrscheinlich wird.Published as part of Rosa, Paolo, Zettel, Herbert & Wiesbauer, Heinz, 2018, Die Hautflüglerfauna (Hymenoptera) des Lainzer Tiergartens in Wien: 3. Goldwespen (Chrysididae), pp. 881-896 in Linzer biologische Beiträge 50 (1) on page 886, DOI: 10.5281/zenodo.400449
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
John F. Kennedy telegram to Roosevelt
No full textJersey Homesteads (later the Borough of Roosevelt) was established in the 1930s as an agro-industrial cooperative community. It was established specifically for urban Jewish garment workers, many of whom had emigrated from Europe. President John F. Kennedy sent a telegram to the citizens of Roosevelt, New Jersey, apologizing for not being able to attend the memorial dedication in honor of former President Franklin Delano Roosevelt. (Jersey Homesteads became Roosevelt in 1945 in honor of the president.) President Kennedy expressed his gratitude to the people of Roosevelt for constructing the memorial, and commented that it will serve as a constant reminder of Roosevelt's good works
Biologia reprodutiva e diversidade genética de Dyckia distachya Hassler (Bromeliaceae) como subsídio para conservação e reintrodução de populações extintas na natureza
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Recursos Genéticos Vegetais, Florianópolis, 2008Dyckia distachya Hassler é uma bromélia exclusiva de ambientes reofíticos, como ilhas ou margens rochosas de corredeiras, ao longo do Rio Uruguai, fronteira entre Santa Catarina e Rio Grande do Sul. Dentre as nove populações naturais conhecidas no Brasil, oito foram extintas localmente devido à construção das hidrelétricas de Itá, Machadinho e Barra Grande, em 2000, 2003 e 2005, respectivamente. Anteriormente ao enchimento das barragens, amostras das populações naturais foram resgatadas gerando diversas coleções e foram feitas algumas relocações experimentais. A partir do fato consumado, com a demanda de estabelecer uma estratégia de conservação para a espécie, foram realizados estudos de biologia reprodutiva e diversidade genética nas coleções das populações extintas na natureza. Os estudos de biologia reprodutiva indicaram que a espécie é auto-incompatível, possui floração anual desde setembro a janeiro; possui floração do tipo disponibilidade regular; sua morfologia floral é generalista, sendo polinizada por diversas guildas, incluindo beija-flores, abelhas e borboletas; e a polinização foi efetiva na maior parte dos locais de conservação, havendo a produção de sementes viáveis. Os indivíduos provenientes de Itá, Machadinho e Barra Grande apresentaram variações na morfologia floral, possuindo flores mais campanuladas e de coloração amarelada para Itá, flores tubulosas e avermelhadas para Barra Grande e flores de morfologia intermediária em Machadinho. A guilda de polinizadores também foi variável entre os diferentes locais de conservação e morfologias florais. Os estudos de diversidade genética indicaram que as coleções provenientes de Itá sofreram as maiores derivas genéticas, refletindo efeitos do processo histórico, em que o conhecimento técnico e as exigências de coleta foram crescentes à medida que foram sendo construídas as novas hidrelétricas. As plantas da região de Itá apresentaram as maiores divergências genéticas com relação à Machadinho e Barra Grande, que coincidiram com os dados de biologia floral. De acordo com os resultados obtidos, concluiu-se que as coleções de cada região (Itá, Machadinho e Barra Grande) não devem ser misturadas, devido à grande diferenciação natural entre elas, que poderia gerar efeitos negativos de exogâmia. As coleções de Itá e Encanadinhos (de Barra Grande) devem ser enriquecidas com coleções dos mesmos locais, visando diminuir a endogamia e aumentar a diversidade nas coleções.Dyckia distachya Hassler is a bromeliad exclusive from rheophytic environments such as islands or rocky shores of rapids along the Uruguay River, the boundary between Santa Catarina and Rio Grande do Sul. Among the nine known natural populations in Brazil, eight were locally extinct due to the construction of the hydroelectrics of Itá, Machadinho and Barra Grande in 2000, 2003 and 2005, respectively. Prior to the filling of dams, samples of natural populations were rescued generating several collections that were used to make some experimental relocations. From the "fait accompli", with the demand to establish a conservation strategy for the species, studies were performed about reproductive biology and genetic diversity in collections of populations that were extinct in the wild. Studies of reproductive biology indicated that the species is self-incompatible, has annual flowering from September to January, has flowering type of regular availability, its floral morphology is general, pollinated by several guilds, including hummingbirds, bees and butterflies, and pollination was effective in most places of conservation with the production of viable seeds. Individuals from Ita, Machadinho and Barra Grande showed variations in floral morphology, having more campanulate and yellowish flowers at Itá, tubular and red flowers at Barra Grande and intermediate flower morphology in Machadinho. The guild of pollinators also varied between the different conservation sites and floral morphologies. The genetic diversity studies indicated that the collections from Itá suffered the greatest genetic drift, reflecting effects of the historical process in which technical knowledge and gathering requirements were increasing as the new plants were being built. The plants in the region of Itá showed the largest genetic differences in relation to Machadinho and Barra Grande, which coincided with the floral biology data. According to the results, it was concluded that the collections of each region (Itá, Machadinho and Barra Grande) should not be mixed because of the large natural differentiation between them, which could generate negative effects of exogamy. Collections from Itá and Encanadinhos (Barra Grande) should be enriched with collections of the same locations in order to reduce inbreeding and increase diversity in the collections
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Maine author Franklin F. Gould recalls his first glimpse of the outside world
No full textMaine author Franklin F. Gould recalls his first glimpse of the outside world as he relates how, as a young farm boy in the late 1800\u27s, he drove his father\u27s horses on an errand to an icebound river
Mapping the Discipline of the Olympic Games An Author-Cocitation Analysis
No full textThe authors conducted an author cocitation analysis on prominent authors writing about the Olympics during the 1990s. Author cocitation is an established bibliometric technique that can be used to measure the relative similarities of topics written about by the cited authors. This enables a visual representation of the “intellectual space” of the discipline, in this case the Olympics, to be created for the period under review. So core and peripheral research areas are identified, along with their major contributors. The representation appears as a two-dimensional cluster-enhanced map. Subject expertise was then applied to the results to place labels on the generated clusters of authors and their topics
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