332,282 research outputs found
Pinkfloydia harveii Dimitrov & Hormiga 2011, SP. NOV.
No full text<i>PINKFLOYDIA HARVEII</i> DIMITROV & HORMIGA SP. NOV. (FIGS 8–16) <p> <i>Types:</i> <i>Holotype</i>: male from Australia, Western Australia, Stirling Range National Park, Wedge Hill; 34°23′17″S, 118°10′18″E; 02.v.1996, Harvey, M. S., Waldock, J. M., Main, B. Y. Legit (Leg). (AUSTMUS T66621).</p> <p> <i>Paratypes:</i> 1 female, same data as holotype (in the same vial). Australia, Western Australia: 1 female, Walpole, Tinglewood Road, 35°00′S, 116°40′E, 13.vi.1987, Main, B. Y. Leg. (AUSTMUS 93/2124); 4 females, Mt Cooke, 32°25′S, 116°18′E, 27.iv.1992, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2080, 93/2081; 93/2082, 93/2083); 1 male, Boddington Bauxite Mine, site SSB02, 32°59′36″S, 116°28′23″E, vi.2003, Graby, G. Leg. (AUSTMUS T71617); 1 female, Stirling Range National Park, Toolbrunup Peak Track, 34°24′S, 118°04′E, 2.iv.1993, Harvey, M. S. Leg. (AUSTMUS T66619); 1 female, Bold Park, site BP1, 31°57′07″S, 115°45′30″E, 20.v.– 20.vii.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2075); 1 female, Bold Park, site BP3, 31°56′33″S, 115°46′13″E, 20.v.–20.vii.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2076); 2 males, Bold Park, site BP4, 31°56′29″S, 115°46′01″E, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2077, 93/2078); 1 male, Perth Airport, site PA5, 31°58′03″S, 115°58′11″E, 24.vi.–28.vii.1993, Harvey, M. S., Waldock, J. M., Sampey, A. Leg. (AUSTMUS 93/2085); 1 male, 1 female, Talbot Road Reserve, site TR2, 31°52′24″S, 116°02′52″E, 24.vi.–28.vii.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2086, 93/2087).</p> <p> <i>Etymology:</i> The species epithet is a patronym after the Australian arachnologist Mark S. Harvey, collector of this and many other new species of arachnids from Western Australia.</p> <p> <i>Diagnosis:</i> As this genus is monotypic the diagnosis of <i>P. harveii</i> coincides with the diagnosis given for the genus (see above under Diagnosis).</p> <p> <i>Description (male holotype):</i> Total body length 2.77. Cephalothorax 1.36 long, 0.93 wide, 1.11 high. Sternum almost as long as wide; 0.67 long, 0.65 wide. Abdomen 1.41 long, 0.90 wide, 0.98 high. Cephalothorax, chelicerae, and sternum brown; dorsally sternum with darker markings laterally. Fovea well marked, with darker coloration. Eyes placed on a conically elevated and slightly projected forward cephalic region; PME on short elevations, much larger than the rest of the eyes (Figs 9B, 12A, B, D). Lateral eyes juxtaposed. Distance between AME 1.5 times one AME diameter; between AME and ALE about one AME diameter. Distance between PME almost two PME diameters. Lateral eyes placed close to the PME. Clypeus height 1.85 times one AME diameter. Chelicerae slender, elongated, and cylindrical (Figs 9B, 12D), with three anterior and two posterior teeth, and two small denticles between the anterior and posterior margins, adjacent to the fang joint (Fig. 12I). Cheliceral cuticle rugose (Fig. 12D). Abdomen oval, longer than wide, with grey-brownish coloration and very few remains of guanine patches. Dorsally with a darker band medially delimited by two clearer dorsolateral bands. Caudal tubercle more darkly pigmented (Fig. 9A, C). Ventrally abdomen lighter in colour, with few small darker dots medially. Legs yellowish. Femur I 1.78 long; 1.30 times the length of the cephalothorax. Femur I with a conspicuous line of oval markings prolaterally (Fig. 12E, G) that extend over the tibia. Similar markings also present on femur IV (under the SEM these markings seem to be made of adhered particles). Palp (Figs 8A–E, 13A–C, E, 14A) with a very long tibia, as long as or slightly longer than the cymbium (Fig. 12A, B). Patella without macrosetae (Fig. 12A, B, D). Paracymbium large and ventrally displaced with two distinctive black, long, and thick macrosetae (Figs 8A, C, 13G, 14A). Cymbial ecto-basal process very long with pointed tip and strongly chitinized (Figs 8B, 13A, D). Cymbial ecto-median process with transparent rim and numerous cuspules dorsally (Figs 8B, E, 13D, H, I). Embolus with large metine embolic apophysis, rectangular, with a pointed and folded laminar distal edge (Figs 8A–C, 13B, F, 14A). Conductor with blunt tip narrower than its base (Fig. 13B, E, F). Epiandrous fusules as in Figure 14D.</p> <p>E, prolateral; G, detail. Abdomen: F, ventral; H, lateral. I, cheliceral denticles. Adt, distal tubercle of the abdomen. Scale bars: A, B, C, D, F, H = 100 Mm; E = 30 Mm; I = 10 Mm; G = 2 Mm.</p> <p>fertilization duct; S, spermatheca; UE, uterus externus. Scale bars: A, B, C = 100 Mm; D, E, F, G, H = 10 Mm.</p> <p> <i>Female (paratype, AUSTMUS 93/2124):</i> Total body length 4.51. Cephalothorax 1.86 long, 1.16 wide, 1.15 high. Sternum almost as long as wide; 0.77 long, 0.70 wide. Abdomen 2.65 long, 2.15 wide, 1.86 high. Coloration pattern and eyes distribution as in males. Sternum slightly more elongated than in males; 0.77 long, 0.70 wide. Abdomen wider than in males, which gives it more rounded appearance (Fig. 10A, B, D). Chelicerae shorter and more robust than in male, with smooth cuticle (Figs 10C, 14E). Clypeus height 1.40 times one AME diameter. Legs brown-yellowish; femur I 1.83, 0.98 times the length of the cephalothorax. Epigynum well sclerotized, dark brown (Figs 8F, 10D, 15D–E). Epigynal plate flattened, with numerous cuticular pores (Fig. 15D, E, G). Remains of a ‘resinous’ secretion forming a genital plug are visible around the edges of the epigynum (Fig. 10E). Copulatory ducts well chitinized, opening on the ventral side of the epigynum and entering the spermathecae at their base (Figs 8G, H, 15F, 16C). Fertilization ducts membranous, originating very close to the copulatory duct entrance in the spermathecae but much wider than it (Figs 8G, H, 15F, H, 16A). Spermathecae oval, weakly sclerotized, and sack like (Fig. 15F, H).</p> <p> <i>Variation:</i> Male cephalothorax ranges in length from 1.36 to 1.61 (<i>N</i> = 7). Female cephalothorax length varies from 1.68–186 (<i>N</i> = 14). Male total body length ranges from 2.77 to 3.75 (<i>N</i> = 7). Female total body length ranges from 3.54 to 4.51 (<i>N</i> = 14). The male abdominal tubercle varies in height and length, in some specimens being very short, which gives the distal edge of the abdomen a more rounded appearance.</p> <p> <i>Natural history:</i> Very poorly known. Many of the specimens that we studied were collected by pitfall traps. We photographed the webs of four juvenile specimens of <i>P. harveii</i> in the Walpole area (Darling Range). Their horizontal webs were built on the leaf litter in a disturbed area and had a maximum frame width between 52 and 92 mm. These orbs were relatively densely spun, as they had many radii (17–28, mean 22, <i>N</i> = 4), lack split radii, and have numerous spiral turns (Fig. 11). The hub is closed and the temporary spiral is removed in the final web (see Fig. 11D). We observed one of the webs being built at night time.</p> <p> <i>Distribution:</i> Southern Western Australia (see map in Fig. 17).</p> <p> <i>Additional specimens studied:</i> Australia, Western Australia: 1 female, Chesapeake Road at Gardner River, 34°48′S, 116°11′E, 1.v.1990, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2079); 1 juvenile (juv.), Perth Airport, site PA5, 31°58′03″S, 115°58′11″E, 10.v.–20.vi.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2084); 1 juv., Talbot Road Reserve, site TR2, 31°52′24″S, 116°02′52″E, 24.vi.–28.vii.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2088); 1 male, Talbot Road Reserve, site TR3, 31°52′25″S, 116°03′03″E, 24.vi.–28.vii.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS 93/2089); 1 juv., Kings Park, site J(E1), 31°58′S, 115°50′E, 26.iii.1981, UWA Zoology students, and B. Y. Main Leg. (AUSTMUS T66615); 1 female, Mt Cooke, 32°25′S, 116°18′E, 24.iv.1992, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS T66616, used for SEM); 1 male, Carabooda area, A. Lombardo’s property, un-named cave, YN-515, twilight zone, 31°35′S, 115°42′E, 22.v.1999, Foulds, R. Leg. (AUSTMUS T66617 used for SEM); 1 juv, Stirling Range National Park, Toolbrunup Peak Track, scree slope, 34°24′S, 118°04′E, 31.iii.1993, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS T66618); 1 female, Stirling Range National Park, S. of Bluff Knoll, 34°23′S, 118°15′E, 1.v.1996, Harvey, M. S., Waldock, J. M., Main, B. Y. Leg. (AUSTMUS T66620 used for dissection and SEM); 1 juv., Glenbourne, S. of Gracetown, site 5, 33°53′S, 115°00′E, 18.iv.–20.iv.1998, Marsh, L. <i>et al</i>. Leg. (AUSTMUS T66622); 1 juv., Karri Valley Resort, 34°26′S, 115°51′E, 21.x.1997, Waldock, J. M. Leg. (AUSTMUS T66623). 3 juv., forest near Tinglewood Cabins, 34°54′51.0″S, 116°43′50.9″E, elevation 185 m, G. Hormiga Leg. (GH0111, one of the specimens sequenced); 1 female, Talbot Road Nature Reserve, 31°52′24″S, 116°03′04″E, 29.viii.2006, Waldock, J. M., Edward, K. Leg. (AUSTMUS T79005); 2 juv., Jandakot Airport, site JK1, 32°05′36″S, 115°52′39″E, 4.v.– 6.vii.1995, Waldock, J. M., Harvey, M. S. Leg. (AUSTMUS T98587); 1 juv., Jandakot Airport, site JK1, 32°05′36″S, 115°52′39″E, 21.ii.–4.v.1995, Waldock, J. M., Harvey, M. S. Leg. (AUSTMUS T98588); 1 juv., Perth Airport, site PA6, 31°58′05″S, 115°58′05″E, 6.i.–18.iii.1994, Harvey, M. S., Waldock J. M. Leg. (AUSTMUS T98589); 1 juv., Woodman Point, site WO2, 32°07′50″S, 115°45′28″E, 04.xi.1994 – 19.i.1995, Waldock, J. M., Harvey, M. S. Leg. (AUSTMUS T98590); 1 juv., Woodman Point, site WO1, 32°07′47″S, 115°45′23″E, 19.i.–21.iii.1995, Harvey, M. S., Waldock, J. M. Leg. (AUSTMUS T98591); 1 female, Rottnest Island, near Lake Timperley, 32°00′23″S, 115°31′11″E, 13.vi.2007, Rix, M. G. Leg. (AUSTMUS T98592); 1 male, 1 female, Porongurup National Park, deep gully west of Waddy’s Hut, 34°40′55″S, 117°50′55″E, 29.iv.2008, Rix, M. G., Harvey, M. S. Leg. (AUSTMUS T98593); 1 male, Boonarring Nature Reserve, off Wannamel West Road, 31°10′27″S, 115°50′57″E, 15.vi.2007, Rix, M. G.Leg. (AUSTMUS T98594); 2 males, 1 female, Austin Bay Nature Reserve, E. of Peel Inlet, end of Beacham Road, 32°36′42″S, 115°47′11″E, 12.vi.2007, Rix, M. G.Leg. (AUSTMUS T98595); 1 female, Sand Patch Beach Reserve, Cuthbert, W of Roberts Road, 35°01′59″S, 117°47′47″E, 18.iii.2008, Rix, M., Harvey, M. S. Leg. (AUSTMUS T98596); 2 males, 1 female, S. of Bremer Bay, near Yate Road, 34°24′10″S, 119°22′43″E, 02.v.2008, Rix, M. G., Harvey, M. S., Newell, J. Leg. (AUSTMUS T98597); 1 male, Two Peoples Bay Nature Reserve, Sinker Reef Road, 34°59′12″S, 118°08′56″E, 01.v.2008, Rix, M., Harvey, M. S. Leg. (AUSTMUS T98598); 1 male, Stirling Range National Park, base of Pyongurup Peak, 34°21′54″S, 118°19′44″E, 05.viii.2008, Rix, M., Harvey, M. S. Leg. (AUSTMUS T98599); 1 female, Lesueur National Park, north of Mt Lesueur, 30°09′59″S, 115°12′06″E, 19.vi.2007, Rix, M. G. Leg. (AUSTMUS T98600); 1 female, 1 juv., Torndirrup National Park, Salmon Hole Road, 35°06′07″S, 117°58′03″E, 30.iv.2008, Rix, M. G., Harvey, M. S. Leg. (AUSTMUS T98601); 1 female, Badgingarra National Park, off Bibby Road, 4.4 km W of Brand Highway, 30°29′14″S, Lon; 115°26′05″E, 19.vi.2007, Rix, M. G. Leg. (AUSTMUS T98602); 1 male, Two Peoples Bay Nature Reserve, near Picnic Area, 34°58′27″S, 118°10′42″E, 01.v.2008, Rix, M., Harvey, M. S. Leg. (AUSTMUS T98603); 1 male, Buller Nature Reserve, 9.5 km SW of Waroona, 32°52′04″S, 115°49′43″E, 22.vii.2007, Rix, M. G. Leg. (AUSTMUS T98604); 1 male, Modong Nature Reserve. 1.5 km NE of Rockingham, 32°13′10″S, 115°54′09″E, 5.vi.2007, Rix, M. G. Leg. (AUSTMUS T98605).</p>Published as part of <i>Dimitrov, Dimitar & Hormiga, Gustavo, 2011, An extraordinary new genus of spiders from Western Australia with an expanded hypothesis on the phylogeny of Tetragnathidae (Araneae), pp. 735-768 in Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) (Zool. J. Linn. Soc.) 161 (4)</i> on pages 756-763, DOI: 10.1111/j.1096-3642.2010.00662.x, <a href="http://zenodo.org/record/5440041">http://zenodo.org/record/5440041</a>
Pholcus intricatus Dimitrov & Ribera 2003
No full textPholcus intricatus Dimitrov & Ribera, 2003 Revista Ibérica de Aracnología, 8: 7–11 Paratypes. Canary Islands. Tenerife, Barranco del Natero: 1♂ 13.V. 2003 A.J. Pérez leg. (CCR–UB 4508 – 170) (DZUL 24595); 1♂ (CCR–UB 4509) 1 ♀ (DZUL 24596). Current status: valid species.Published as part of Reboleira, Ana Sofia P. S., Pérez, Antonio José, López, Heriberto, Hernández, Nuria Macías -, Cruz, Salvador De La & Oromí, Pedro, 2012, Catalogue of the type material in the entomological collection of the University of La Laguna (Canary Islands, Spain). I. Arachnida, pp. 61-79 in Zootaxa 3556 on page 67, DOI: 10.5281/zenodo.21283
Pholcus anachoreta Dimitrov & Ribera 2006
No full textPholcus anachoreta Dimitrov & Ribera, 2006 Journal of Arachnology, 34: 126–134 Paratypes. Canary Islands. Lanzarote, Montaña Clara, La Caldera: 1♂ 23–27.XI. 2002 A.J. Pérez leg. (CCR–UB 4502 – 170) (DZUL 24597). Current status: valid species.Published as part of Reboleira, Ana Sofia P. S., Pérez, Antonio José, López, Heriberto, Hernández, Nuria Macías -, Cruz, Salvador De La & Oromí, Pedro, 2012, Catalogue of the type material in the entomological collection of the University of La Laguna (Canary Islands, Spain). I. Arachnida, pp. 61-79 in Zootaxa 3556 on page 67, DOI: 10.5281/zenodo.21283
Coalition formation in simple Games. the semistrict core
No full textDimitrov D, Haake C-J. Coalition formation in simple Games. the semistrict core. Working Papers. Institute of Mathematical Economics. Vol 378. Bielefeld: Universität Bielefeld; 2006.We consider the class of proper monotonic simple games and study coalition formation when an exogenous share vector and a solution concept are combined to guide the distribution of coalitional worth. Using a multiplicative composite solution, we induce players' preferences over coalitions in a hedonic game, and present conditions under which the semistrict core of the game is nonempty
Lepthyphantes rossitsae Dimitrov 2018, sp. n.
No full textLepthyphantes rossitsae sp. n. Figs 1-6, 10-12, 16-22 Types: Male holotype, 1 male paratype, 7 females paratypes; Turkey, Çamlik village, Beyşehir district, Maǧarasi cave; 10.07.1993; P. Beron leg. Etymology: I dedicate the species to my wife Rossitsa Dimitrova. Diagnosis: The new species is very similar to Lepthyphantes leprosus in somatic and genital characters. The male of L. rossitsae sp. n. can be distinguished by the shape of the narrow branch of the lamella characteristica, which is shorter and wider apically (Figs 1, 4, 16, 18), while in L. leprosus it is longer, narrower and forked at the end (Fig. 7). The embolus in both species is very similar, but in L. rossitsae sp. n. the teeth at its base are less numerous and tiny (Figs 2, 5, 17), while in L. leprosus they are more numerous and slightly bigger (Fig. 8). Also the big tubercle of the cymbium (Figs 3, 6, 19) is shorter and wider than in L. leprosus (Fig. 9). The female epigyne (Figs 10-12, 20-22) has almost the same lateral wall and lateral lobe as in L. leprosus, but the scape in L. rossitsae sp. n. is thinner and longer and there are no lateral teeth (Figs 13-15). Description of male (holotype): Measurements: Total length 3.85; cephalothorax length 1.48, width 1.25; sternum length 0.68, width 0.45; chelicera length 0.72, width 0.30; abdomen length 2.35, width 1.45; leg I length 11.75 (0.80 + 3.00 + 0.45 + 3.00 + 3.00 + 1.50); leg II length 10.75 (0.60 + 2.80 + 0.45 + 2.70 + 2.85 + 1.35); leg III length 8.45 (0.55 + 2.35 + 0.40 + 1.90 + 2.25 + 1.00); leg IV length 10.70 (0.62 + 2.70 + 0.40 + 2.63 + 3.00 + 1.35). Eyes: Both eye rows straight; AME smaller than other eyes, touching each other. Other eyes approximately equal in size. AME diameter 0.05; ALE, PLE, PME diameter 0.09; ALE separated from AME by 0.03. PME separated from PLE and each other by 0.08, ALE touching PLE. Chelicerae with 2 large distal and 2 small apical teeth on promargin and with 1 large distal tooth on retromargin. Coloration: carapace, sternum, chelicerae and legs yellow-brown. Abdomen grey, with white pattern (not very well preserved). Leg chaetotaxy: leg I (1p, 1d, 2d2p1v1r, 1d1r); leg II (-, 1d, 2d1r1v, 1d1p); leg III (-, 1d, 2d1r, 1d); leg IV (-, 1d, 2d1r, 1d). Palps (Figs 1-6, 16-19): Cymbium with one big and one small tubercle in its basal part, visible in dorsal view (Figs 3, 6, 19). Paracymbium connected to cymbium with its flat internal part. Lamella characteristica broad and incised, bifid. It’s narrow distal branch gradually widening to a fan shaped apical part (Figs 1, 4, 16). Embolus bent, sickle-shaped, bearing small teeth near its base (Figs 4-5, 17). Description of female (paratype): Measurements: Total length 4.05; cephalothorax length 1.60, width 1.25; sternum length 0.85, width 0.75; chelicera length 0.72, width 0.30; abdomen length 2.66, width 1.70; leg I length 10.47 (0.65 + 2.95 + 0.47 + 2.50 + 2.50 + 1.40); leg II length 9.45 (0.63 + 2.40 + 0.47 + 2.30 + 2.40 + 1.25); leg III length 7.00 (0.54 + 2.00 + 0.40 + 1.35 + 1.85 + 0.86); leg IV length 9.35 (0.56 + 2.40 + 0.40 + 2.25 + 2.52 + 1.22). Eye arrangement and coloration as in male. Chelicerae with 4 large teeth on promargin and 4 small apical teeth on retromargin. Leg chaetotaxy: leg I (1p, 1d, 2d1p2v1r, 1d1p1r); leg II (-, 1d, 2d1v2r, 1d1p1r); leg III (-, 1d, 2d1v1r, 1d); leg IV (-, 1d, 2d1r, 1d). Epigyne (Figs 10-12, 20-22): Lateral wall without teeth (Figs 10-11, 20-21). Scape long and narrow, widening at the end (Figs 10, 20). Two lateral lobes on each side of scape (Figs 10-11, 20-21). Distribution: Known only from the type locality. Remarks: As already stated by Helsdingen (2009), the splitting of Lepthyphantes s. l. into several distinct genera by Saaristo & Tanasevitch (1996, 1999, 2000, 2001) not only makes species identification difficult and user-unfriendly, but also leaves Lepthyphantes s. str. as a heterogeneous group containing all species that could not be placed with certainty in any of the present genera close to Lepthyphantes. This is also the case with Lepthyphantes leprosus. Previously it was listed as part of the Lepthyphantes nebulosus group. Meanwhile most of the species from this group have been transferred to Megalepthyphantes Wunderlich, 1994, but Lepthyphantes leprosus remained in Lepthyphantes along with some other species, most of which are clearly not related to each other. Since the new species described here is very close to Lepthyphantes leprosus, it is provisionally also placed in Lepthyphantes.Published as part of Dimitrov, Dragomir, 2018, Description of Lepthyphantes rossitsae sp. n. from Turkey (Arachnida: Araneae: Linyphiidae), pp. 277-281 in Revue suisse de Zoologie 125 (2) on pages 277-280, DOI: 10.5281/zenodo.141422
Regrouping of endowments in exchange markets with indivisible goods
No full textDimitrov D, Haake C-J. Regrouping of endowments in exchange markets with indivisible goods. Working Papers. Institute of Mathematical Economics. Vol 367. Bielefeld: Universität Bielefeld; 2005.In this paper we are interested in efficient and individually rational exchange rules for markets with heterogeneous indivisible goods that exclude the possibility that an agent benefits by regrouping goods in her initial endowment. We present a suitable environment in which the existence of such rules can be analysed, and show the incompatibility of efficiency, individual rationality and regrouping-proofness even if agents' preferences are additive separable
Second chamber of parliament as a veto player in federal and unitary states
No full textDiplomsko delo raziskuje in analizira vpliv določene značilnosti političnega sistema na drugi dom parlamenta. Značilnost političnega sistema v tem primeru je federalnost oziroma unitarnost države. Večina analitikov povezuje federalizem z močno dvodomnostjo, vendar napačno bi bilo predvidevati, da v unitarnih državah drugi domovi parlamentov nimajo pomembne vloge v javnopolitičnem procesu. V prvem delu diplomske naloge so podrobneje opisani ključni pojmi: federalizem, unitarizem in dvodomnost. Kot dodaten vidik je vključena še teorija o veto igralcih, s pomočjo katere lahko bolje razumemo vlogo oziroma moč drugih domov parlamentov v različnih političnih sistemih. V drugem delu pa so predstavljeni drugi domovi parlamentov v treh federalnih in treh unitarnih državah. Raziskava je omejena zgolj na demokratične evropske države, in sicer Avstrijo, Belgijo, Nemčijo, Italijo, Češko in Francijo. Namen diplomskega dela je torej ob primerih iz izbranih držav ugotoviti, kako federalnost oziroma unitarnost države vpliva na drugi dom parlamenta kot veto igralca.The diploma thesis aims to explore and analyse the influence of a certain characteristic of a political system on the second chamber of parliament. The characteristic in this case is whether a country is based on a federal or unitary system. Most analysts associate federalism with strong bicameralism, but it would be wrong to assume that in unitary states, second chambers of parliament do not have a significant role in the policy process. The first part of the thesis describes in more detail the key concepts: federalism, unitarism and bicameralism. As an additional aspect, the theory of veto players is included, with the help of which we can better understand the role and power of second chambers of parliament in different political systems. In the second part, the second chambers of parliament in three federal and three unitary states are presented. The research is limited to democratic European countries, namely Austria, Belgium, Germany, Italy, the Czech Republic and France. Therefore the purpose of the diploma thesis is to determine how the federal or unitary system of a country affects the second chamber of parliament as a veto player based on the cases from selected countries
Digital content preservation across domain verticals
No full textThe authors present a novel approach to develop scalable systems and services for preserving digital content generated from various application domains. The aim is to deliver an integrative scalable approach for digital content preservation across domain verticals. This would involve consolidating approaches for modeling document workflow, preserving the integrity of heterogeneous data, and developing robust and scalable tools for digital preservation ensuring interoperability across domains verticals. The authors consider various application domains including: healthcare, public, business and finance, media and performing art, and education. The authors focus on specific case studies of digital content preservation across the considered domain verticals. The authors describe an integrative framework for digital content preservation across domain verticals. This framework is developed at four levels and attempts to abstract and integrate the digital content workflow across domain verticals. The authors suggest a test bed to validate our integrative approach for digital content preservation. This integrates the digital content preservation activity along the value chain of domain verticals.</p
An axiomatic approach to composite solutions
No full textDimitrov D, Haake C-J. An axiomatic approach to composite solutions. Working Papers. Institute of Mathematical Economics. Vol 385. Bielefeld: Universität Bielefeld; 2006.We investigate a situation in which gains from cooperation are represented by a cooperative TU-game and a solution proposes a division of coalitional worths. In addition, asymmetries among players outside the game are captured by a vector of exogenous weights. If a solution measures players' payoffs inherent in the game, and a coalition has formed, then the question is how to measure players' overall payoffs in that coalition. For this we introduce the notion of a composite solution. We provide an axiomatic characterization of a specific composite solution, in which exogenous weights enter in a proportional fashion
- …
