43 research outputs found
Trilacuna clarissa Eichenberger, n. sp.
No full textTrilacuna clarissa Eichenberger n. sp. (Figs. 7–9) Type material: Holotype male (PBI_OON 00012418): Sumatra: West Sumatra Province: Rimbo Panti Nature Reserve, about 30 km N of Lubuksikaping, 0° 20 ' 46 "N, 100 °04'09"E, 300–400 m, primary forest, 11 / 13 June 2006, leg. P. Schwendinger, deposited in MHNG. 1 male paratype (PBI_OON 00031971), collected with holotype, deposited in MHNG. 1 male paratype (PBI_OON 00031972), collected with holotype, deposited in MHNG. 1 male paratype (PBI_OON 00031973), collected with holotype, deposited in NMBE. Etymology: The species epithet refers to the name of Agatha Christie, born as Agatha Mary Clarissa Miller, who was a brilliant and famous English author of novels, short stories and plays. Diagnosis: This species can be distinguished from all other Trilacuna species by the sternum surface with relatively small, ovoid pits (figs. 7. D, F, H) and abundant, evenly scattered, plumose setae (fig. 7. H). Description: Description based on 4 males (plus 2 males for SEM). MALE: Body length 1.1 mm, proportion carapace length:abdominal length 1: 1. Uniformly orange-brown species (figs. 7. A–C). Carapace broadly oval, strongly elevated, surface smooth, without spikes, lateral margin straight, with blunt denticles, with second, strongly rebordered, straight margin below (figs. 7. E, G; 8. B). Eyes posterior row straight from above, procurved from front (figs. 7. E; 8. B). Sternum with radial furrows of small pits between coxae, anterior margin with transverse groove. Mouthparts: Chelicerae promargin with row of flattened hairs (fsh) in combination with feather-like hairs (flh), (see fig. 2. E); labium triangular, not fused to sternum, anterior margin deeply incised (ldi), (figs. 8. C–D); endites slender, distally only slightly branched, with distal patch of fork-like serrated setae (coh), outer part with some broadish, funnel shaped, distally serrated setae (fuh), (fig. 8. E). Abdomen: Broadly-ovoid, dorsal scutum not fused to epigastric scutum, postepigastric scutum short, almost circular, with short, posteriorly directed lateral apodemes, posterior spiracles not connected by groove or dark belt (fig. 8. H), booklung covers roundish. Legs: Ventral apex of tibiae III and IV with one or few specialized hairs with fine, plumose, curved hair tip (see fig. 16. H); metatarsi III, IV and tarsus IV with harpoon-like hairs (see fig. 2. G); tibiae I and II ventral surface with smooth stripes containing pores (figs. 8. F–G), less distinct stripes also observed on femora I–IV and metatarsi III– IV, pores not observed but absence unproved. Femora without spines. Male genitalia: Male palp (figs. 9. A–I) embolus (emb) light, short and straight; retrolateral-dorsally framed by a brush of thickened hairs (bsh) (figs. 9. E–I); conductor-complex about as long as embolus, divided in a prolateral, broadish branch (pbb) and in a ventral branch (vb), both surrounded by numerous setae (figs. 9. E–I). Bulb about twice as long as cymbium, stout, tapering apically (figs. 9. A–C). Femur elongated, slender (figs. 9. A–B). FEMALE: unknown. Distribution: Known only from the type locality, the Rimbo Panti Nature Reserve on Sumatra.Published as part of Eichenberger, Beata & Kranz-Baltensperger, Yvonne, 2011, New Trilacuna species from Thailand, Malaysia and Sumatra (Araneae, Oonopidae), pp. 1-31 in Zootaxa 2823 on page 10, DOI: 10.5281/zenodo.27724
One-Dimensional Transient Analysis of Rainfall Infiltration in Unsaturated Volcanic Ash
No full textThe paper presents a one-dimensional hydro-mechanical analysis of rainfall infiltration in a loose volcanic ash and the utilisation
of a factor of safety for the implementation of an early-warning system. Three different rainy seasons with different rainfall patterns were analysed . The analysis aims to understand the influence of the antecedent rainfall on the wetting front, the pore-water pressures and the factor of safety. The analysis was carried out in the context of a Master project of the first author at the Laboratory for Soil Mechanics of EPFL
Communio et Progressio: "Entgegenstehendes ist hiermit außer Kraft gesetzt."
No full textIm Hinblick auf die rasanten und teilweise unübersichtlichen Entwicklungen, vor allem im Bereich der sog. neuen Medien, kann es geradezu einen anachronistischen Eindruck machen, wenn man sich zur "Feier" eines Mediendokumentes zusammenfindet, das bereits vor 20 Jahren entstanden ist.1 Technologiesprünge im Bereich der Mikroelektronik, ständig ansteigende Datenübertragungsgeschwindigkeiten, das relativ neue duale System von öffentlich- rechtlichen und privaten Anbietern usw. haben neue Szenarien und Paradigmen geschaffen, deren Auswirkungen auf Kultur und Kreativität, aber auch auf den Alltag, die Arbeitswelt und die Freizeitgestaltung der Menschen noch gar nicht abzusehen sind. Man kann dementsprechend belegen, daß das, was am Anfang der 80er Jahre über die technischen und gesellschaftlichen Auswirkungen neuer Medien veröffentlicht wurde, in den meisten Fällen heute kaum noch das Papier wert ist, auf dem es geschrieben wurde. (...) EnglishThe author puts into question whether the statements of "Communio et Progressio" of 1971 arestill relevant after the impetous development of communications technology. In his answer he points out that even if some single Statements do not appear to be up to date, the generat part did not loose its importance. The generat declarations of CP concerning the meaning of social communications and the way in which the Church has to live with modern massmedia are still valid. There is, however, a great deficit in accepting an acting according to these Statements especially within the Church itself. Eichenberger refers as an example to the Instruction for theologians of 1990. Instead of a prevailing mentality of defensive attitudes, an open Investigation of Consciousness and a new describing of our position are required. We have to push CP again to new life. This would include to work out convincing theological roots in order to make apparent the theological and ethic meanings of masscommunications and to inspire the activities of the Church from these sources. AB two examples for fields of action, the author mentions a stronger engagement of the Church for minorities and for a "New World Order of Information and Communication" as it is asked for by the Third World peoples since long.
Molecular phylogenies of representatives of Xanthoria and Xanthomendoza (lichen-forming ascomycetes)
No full textVERDANDI is a direct target of the MADS domain ovule identity complex and affects embryo sac differentiation in Arabidopsis
No full textIn Arabidopsis thaliana, the three MADS box genes SEEDSTICK (STK), SHATTERPROOF1 (SHP1), and SHP2 redundantly regulate ovule development. Protein interaction studies have shown that a multimeric complex composed of the ovule identity proteins together with the SEPALLATA MADS domain proteins is necessary to determine ovule identity. Despite the extensive knowledge that has become available about these MADS domain transcription factors, little is known regarding the genes that they regulate. Here, we show that STK, SHP1, and SHP2 redundantly regulate VERDANDI (VDD), a putative transcription factor that belongs to the plant-specific B3 superfamily. The vdd mutant shows defects during the fertilization process resulting in semisterility. Analysis of the vdd mutant female gametophytes indicates that antipodal and synergid cell identity and/or differentiation are affected. Our results provide insights into the pathways regulated by the ovule identity factors and the role of the downstream target gene VDD in female gametophyte development
Three new Xanthoria species from South Africa: X. hirsuta, X. inflata and X. doidgeae
No full textThree new Xanthoria species are described from South Africa. Xanthoria hirsuta sp. nov. has hairs on the surface of the thallus and apothecia, best visible in young, growing parts. Dust particles and sand granules stick to this hairy surface, giving the thallus a somewhat dirty appearance. Xanthoria inflata sp. nov. has inflated lobes similar to a Menegazzia. It carries numerous crystals on its medullary hyphae, which are ivory-coloured in young, but intensely orange coloured in old lobes. Xanthoria doidgeae sp. nov. has relatively small lobes with pruinose margins. All three species are fertile, none of them forms symbiotic propagule
Three new Xanthoria species from South Africa: X. hirsuta, X. inflata and X. doidgeae
No full textThree new Xanthoria species are described from South Africa. Xanthoria hirsuta sp. nov. has hairs on the surface of the thallus and apothecia, best visible in young, growing parts. Dust particles and sand granules stick to this hairy surface, giving the thallus a somewhat dirty appearance. Xanthoria inflata sp. nov. has inflated lobes similar to a Menegazzia. It carries numerous crystals on its medullary hyphae, which are ivory-coloured in young, but intensely orange coloured in old lobes. Xanthoria doidgeae sp. nov. has relatively small lobes with pruinose margins. All three species are fertile, none of them forms symbiotic propagules
Der Film als Mittel der Begegnung zwischen den Kulturen
No full textVokabeln und Begriffe wie Weltethos, Weltphilosophiel, Weltliteratur, Weltmusik, Weltkunst usw., wie sie vor allem seit Beginn der 90er Jahre in Umlauf gesetzt worden sind, laden ein, danach zu fragen, ob und in welchem Sinne in Ergänzung dazu auch vor einem "Weltfilm" oder von einer "Weltfilmkultur" gesprochen werden kann. Als eines der Medien, das breitenwirksam Grenzen überschreitet, scheint der Film auf Anhieb ein besonders gut geeignetes Instrument für diese weltweite, interkulturelle, soziale Kommunikation zu sein, um andere Menschen und Kulturen besser kennen und verstehen zu lernen; und zwar vor allem deshalb, weil das Kino fremde Lebenswelten und Realitäten nicht auf rein verbale und abstrakte Weise vermittelt, sondern diese Realitäten durch bewegte Bilder, Geräusche und Töne anschaulich, vernehmbar und einfühlsam macht. (...) English SUMMARY: Film as a Medium for the Dialogue of CultureThe main concern of this article is the question in how far the medium ,film\u27 is able to contribute to ,international communication\u27 and ,intercultural interaction\u27. In this context the potential of ,the culture of a world cinema\u27 is revisited. The visions and the optimistic view of the seventies and ei&hties are confronted with the disillusions of the presence. Especially, the dommance of the US film business and its cultural imperialism, which now has be~un its triumphal march in Eastern European countries, is to be reflected cnticaliy. Nevertheless, beside this there are some signs of hope. The author refers to a developing multicultural awareness, which opens up a chance for movies made in ;3. worfd countries\u27. In this respect, the Catholic film organisations such as OCIC have done some valuable contributions
Sox10 haploinsufficiency affects maintenance of progenitor cells in a mouse model of Hirschsprung disease
No full textHirschsprung disease, or congenital megacolon, is characterized by aganglionosis of the terminal bowel, which leads to intestinal obstruction and chronic constipation. Several genes involved in the disease have been identified. In particular, haploinsufficiency of SOX10, which encodes a transcription factor, results in megacolon, often in combination with other disorders. Although Hirschsprung disease has been recognized as a neurocristopathy, the cellular mechanisms that lead to aganglionosis in affected individuals are unclear. Failure of mutant enteric progenitor cells to migrate into the gut, to survive, or to differentiate into appropriate cell types at the appropriate time and in correct numbers might contribute to the disease phenotype. In the present study, we use mice with a targeted deletion of Sox10 to study the etiology of Hirschsprung disease. We demonstrate that neural crest-derived enteric progenitors that are heterozygous for the Sox10 mutation colonize the proximal intestine and are unaffected in their survival capacity. However, unlike their wild-type counterparts, mutant enteric neural crest-derived cells are unable to maintain their progenitor state and acquire preneuronal traits, which results in a reduction of the progenitor pool size. Thus, the cells that normally colonize the hindgut are depleted in the Sox10 mutant, causing the distal bowel to become aganglioni
