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Search Results: 1 - 10 of 139238 matches for " Kova?ík "
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Nobelovac Vladimir Prelog - u itelj hrvatskih kemi ara
Kova?evi?, K.
Kemija u Industriji , 2007,
Abstract: The life-path of Vladimir Prelog: from Sarajevo, his birth place, through the school years in Zagreb and Osijek, to his studies in Prague is described in a popular manner and illustrated with lots of photographs. Prelog's scientific and educational work at the Technical Faculty of Zagreb University (1935-1941) is also shortly described. During this period, Prelog published numerous scientific articles and patents, together with his graduate and PhD students, as well as with researchers from a small pharmaceutical company "Ka tel d. d.", the predecessor of PLIVA. This so-called "Prelog's school of organic chemistry" had several generations. The first one represents earlier mentioned collaborators from the period before World War II: Eugen Gu tak, Adolf Re ek and Pavao Mildner (graduate students); Dragutin Kohlbach, Eugen Cerkovnikov, Miha Piantanida, Rativoj Seiwerth and Mihovil Pro tenik (PhD students); Kre imir Balenovi (postdoctoral student); as well as other researchers such as Viktor Hahn, Suzana Heimbach, Ljubo Trinajsti and Ernest Reiner. Prelog's departure to the Swiss Federal Institute of Technology in Zürich, as well as his scientific success in Switzerland is described as well. The focus is put on numerous guest-researchers from Croatia in his laboratory in Zurich. After their stay with Prelog, a majority of them returned to Croatia, taking the key positions in the scientific life at Zagreb University, Ru er Bo kovi Institute, or at the PLIVA - Research Institute. The members of this second generation of Prelog's postdoc students are Du an Dvornik, Stanko Bor i , Mirko Ternbach, Berislav Glun i , Branimir Ga pert, Rade Maru i and Vitomir unji .After Prelog received the Nobel Prize for Chemistry in 1975, a new group of researchers from Croatia went to work in his laboratory. This was the third group of his postdoc students: Davor Bedekovi , Nada ar evi , arko Stojanac, Mladen ini , Kruno Kova evi , Stjepan Mutak, Miljenko Dumi and Mi e Kova evi . Contacts, which Prelog continuously maintained with his former students, accompanied with numerous photographs of his visit to Zagreb, or photographs with his collaborators from Croatia who visited him in Zürich, is also described. Prelog's relation towards the Homeland war for the liberation of the country during the 1990s is also explained. Finally, some actions showing Croatian thankfulness to Prelog is mentioned. This article is also a sign of our gratefulness to our world-famous scientist.
COMPARISON OF PRICE REACTION CHOSEN INDIRECT CRUDE OIL INVESTMENT TO TREND IN CRUDE OIL PRICES
Michal KovA A k
Lex et Scientia , 2008,
Abstract: Investments in crude oil recently belong among the most profitable ones. Among these investments I include direct crude oil futures investments and modern structured indirect investments (in this case warrant) with crude oil being the underlying asset, crude oil companies funds investments, crude oil fund investments or crude oil companies stock investments. However development of prices of particular indirect investments differ not only comparing to each other but also comparing to direct investments in the commodity. The goal of my entry is to identify and compare different warrant price development reflectance to American crude oil and American crude oil companies’ stock using the determination of so called psychological barrier regarding three time periods.
A review of the subgenus Pandinus Thorell, 1876 with descriptions of two new species from Uganda and Ethiopia (Scorpiones: Scorpionidae)
Kova?ík, F.
Euscorpius , 2011,
Abstract: Pandinus (Pandinus) ugandaensis sp. n. from Uganda and P. (P.) mazuchi sp. n. from Ethiopia are described and compared with other species of the subgenus. P. ugandaensis sp. n. is characterized by 3-4/3: 3-4/3: 4/3: 4/3 spiniform formula of tarsomere II and only two spines on the inclined anteroventral surface of tarsomere II; eight ventral trichobothria on the chela; 10–11 pectinal teeth in females and 13–14 in males; and 1.6–1.7 length to depth ratio of the fourth metasomal segment. P. (P.) mazuchi sp. n. is characterized by 7/4: 6-7/4: 6-7/5-6: 8/5 spiniform formula of tarsomere II and only two spines on the inclined anteroventral surface of tarsomere II; 10 ventral trichobothria on the chela; 15–17 pectinal teeth; and 1.85 length to depth ratio of the fourth metasomal segment. New data on taxonomic characters, occurences and ecology of P. smithi (Pocock, 1897) and P. phillipsii (Pocock, 1896) are given and the presence of P. smithi (Pocock, 1897) in Ethiopia is verified. Presented are also photos of localities and a key to species of the subgenus.
A review of the genus Isometrus Ehrenberg, 1828 (Scorpiones: Buthidae) with descriptions of four new species from Asia and Australia.
Kova?ík, F.
Euscorpius , 2003,
Abstract: Four new species of the genus Isometrus are described: Isometrus (Reddyanus) bilyi from Australia, I. (R.) petrzelkai from Vietnam and Thailand, I. (R.) problematicus from India and I. (R.) khammamensis from India. Keys are presented to all species of both subgenera of Isometrus. Lectotypes are designated for I. (I.) thurstoni Pocock, 1893 and I. (R.) assamensis Oates, 1888. I. (I.) sankariensis Tikader & Bastawade, 1983 is synonymized with I. (I.) thurstoni Pocock, 1893. First time records include I. (I.) thurstoni Pocock, 1893 from Kerala (India), I. (R.) assamensis Oates, 1888 from Madhya Pradesh and West Bengal (India) and Bangladesh, I. (R.) brachycentrus Pocock, 1899 from Tamil Nadu (India), I. (R.) heimi Vachon, 1976 from New Guinea, I. (R.) kurkai Kova ík, 1997 from Sumatra (Indonesia), Kalimantan and Sarawak (Malaysia), I. (R.) navaiae Kova ík, 1998 from Indonesia and I. (R.) rigidulus Pocock, 1897 from Maharashtra and Rajasthan (India). I. (R.) isadensis Tikader & Bastawade, 1983 from India is considered a nomen dubium.
Buthus awashensis sp. n. from Ethiopia (Scorpiones: Buthidae).
Kova?ík, F.
Euscorpius , 2011,
Abstract: Buthus awashensis sp. n. from the Awash region of Ethiopia, is described and compared with B. berberensis Pocock, 1900 from Somaliland. The new species is characterized chiefly by the total length of 50–65 mm. B. berberensis reaches only 45–55 mm and differs in coloration, with adults having the chela of pedipalp and chelicerae entirely yellow without dark reticulations, and by mophometric characters, mainly the shape of the chela of pedipalp. Pectinal marginal tips extend the to proximal end of the fourth sternite in males of B. awashensis sp. n. and to proximal end of the fifth sternite in males of B. berberensis. Included are color photos of both sexes of dead and alive B. awashensis sp. n. and B. berberensis and of their localities.
A review of the genus Heterometrus Ehrenberg, 1828, with descriptions of seven new species (Scorpiones, Scorpionidae).
Kova?ík, F.
Euscorpius , 2004,
Abstract: The genus Heterometrus is revised and a key is presented to all species except H. tristis. Subgenera Chersonesometrus Couzijn, 1978, Gigantometrus Couzijn, 1978, Javanimetrus Couzijn, 1981 and Srilankametrus Couzijn, 1981 are synonymized with the subgenus Heterometrus Ehrenberg, 1828. Seven new species of Heterometrus are described: H. beccaloniae sp. n., H. mysorensis sp. n., H. rolciki sp. n., and H. ubicki sp. n. from India, H. nepalensis sp. n., from Nepal, H. sejnai sp. n. from Thailand, and H. cimrmani sp. n. from Thailand and Vietnam. The following species and subspecies are synonymized: H. (Chersonesometrus) fastigiosus Couzijn, 1981with H. bengalensis (C. L. Koch, 1841); H. (Srilankametrus) indus laevitensus Couzijn, 1981 with H. gravimanus (Pocock, 1894); H. liophysa madoerensis Kopstein, 1921 and H. laevifrons Roewer, 1943 with H. liophysa (Thorell,1888); H. (H.) longimanus belitungensis Couzijn, 1981 and H. (H.) longimanus tarawakanensis Couzijn, 1981 withH. longimanus (Herbst, 1800); H. (Chersonesometrus) granulomanus Couzijn, 1981 with H. madraspatensisPocock, 1900; Palamnaeus phipsoni collinus Pocock, 1900 with H. phipsoni (Pocock, 1893); H. (H.)malapuramensis Tikader & Bastawade, 1983 with H. scaber (Thorell, 1876); H. (Gigantometrus) swammerdamititanicus Couzijn, 1981 with H. swammerdami Simon, 1872; and H. (Chersonesometrus) pelekomanus Couzijn,1981 with H. wroughtoni (Pocock, 1899). H. thorellii (Pocock, 1892) comb. n. is recognized as valid species.Lectotypes are designated for H. xanthopus (Pocock, 1897) and for H. bengalensis (C. L. Koch, 1841), whichinvalidate Couzijn’s (1981) neotype designation. H. bengalensis (C. L. Koch, 1841) is for the first time recordedfrom Orissa, H. fulvipes (C. L. Koch, 1837) from Mysore, Uttar Pradesh, and West Bengal, H. kanaraensis (Pocock,1900) from Goa, H. phipsoni (Pocock, 1893) from Orissa, H. scaber (Thorell, 1876) from Mysore and Pondichery,H. swammerdami Simon, 1872 from Mysore, and H. wroughtoni (Pocock, 1899) from Mysore (all states of India).
Revision and taxonomic position of genera Afghanorthochirus Louren o & Vachon, Baloorthochirus Kova ík, Butheolus Simon, Nanobuthus Pocock, Orthochiroides Kova ík, Pakistanorthochirus Louren o, and Asian Orthochirus Karsch, with descriptions of twelve new species (Scorpiones, Buthidae).
Kova?ík, F.
Euscorpius , 2004,
Abstract: Orthochirus are revised and keys are presented to all species of Butheolus and Orthochiroides, Asian species of Orthochirus, and to species of all related genera. Afghanorthochirus Louren o & Vachon, 1997 is synonymized with Orthochirus Karsch, 1892; Nanobuthus Pocock, 1895 is synonymized with Butheolus Simon, 1882; and Pakistanorthochirus Louren o, 1997 is synonymized with Baloorthochirus Kova ík, 1996. Orthochiroides socotrensis sp. n. from Socotra Island and eleven new species of Orthochirus are described: O. afghanus sp. n., O. heratensis sp. n., O. jalalabadensis sp. n. and O. samrchelsis sp. n. from Afghanistan; O. iranus sp. n., O. sobotniki sp. n., O. varius sp. n. and O. zagrosensis sp. n. from Iran; O. iraqus sp. n. from Iraq; O. gromovi sp. n. fromTurkmenistan; and O. feti sp. n. from Uzbekistan. Orthochirus luteipes Roewer, 1943 is synonymized with Orthochirus flavescens (Pocock, 1897); Pakistanorthochirus weitschati Louren o, 1997 is synonymized with Baloorthochirus becvari Kova ík, 1996; and Butheolus insularis Pocock, 1899 is moved to the genus Orthochiroides. Lectotypes are designated for Orthochirus bicolor (Pocock, 1897) and Orthochirus pallidus (Pocock, 1897). Baloorthochirus becvari Kova ík, 1996 is for the first time recorded from India; Orthochirusfuscipes (Pocock, 1900), from Iran and India; and Orthochiroides vachoni Kova ík, 1998, from Socotra Island. Orthochirus krishnai Tikader & Bastawade, 1983 from India is considered a nomen dubium.
The true identity of the enigmatic scorpion Centruroides subgranosus (Kraepelin, 1898), with some taxonomic comments on Centruroides vittatus (Say, 1821) and Centruroides suffusus Pocock, 1902 (Scorpiones: Buthidae).
Teruel, Rolando,Kova?ík, F
Euscorpius , 2010,
Abstract: The true identity of Centruroides subgranosus (Kraepelin, 1898) is established based on the examination of the type series. A lectotype and paralectotype are designated. A taxonomic discussion on C. vittatus (Say, 1821) and C. suffusus Pocock, 1902 is provided.
Redescription and taxonomic position of Tityus atriventer Pocock, 1897 (Scorpiones: Buthidae).
Teruel, R.,Kova?ík, F.
Euscorpius , 2011,
Abstract: The largely neglected Lesser Antillean scorpion Tityus atriventer Pocock, 1897 is herein redescribed, after study of the two syntypes and one additional adult male. The latter was recently collected from Union Island (about 55 km northeast of Grenada), and it implies the first published finding of this species after its original description, and the first record of the species both outside the type-locality and from the Grenadines islands. The taxonomic position of T. atriventer is clarified (including designation of a lectotype and a paralectotype), its diagnosis is updated, a fully illustrated redescription is presented according to the current taxonomy of the genus, and a comparison to its morphologically closest relatives is also provided
Hemiscorpius novaki sp. n. from Somaliland (Scorpiones: Hemiscorpiidae).
Kova?ík, F.,Mazuch, T.
Euscorpius , 2011,
Abstract: Hemiscorpius novaki sp. n. from Somaliland is described and compared with other African species of the genus. The new species is characterized chiefly by the total length of 40–46 mm; yellow to yellowish-brown color with pedipalp fingers reddish brown to black, darker than the chela; slightly longer metasoma in the male than in the female. These characters distinguish H. novaki sp. n. from H. somalicus Louren o, 2011. The third African species of the genus, H. tellinii Borelli, 1904, is known only from the female holotype, which differs from females of H. novaki sp. n. in having much less pronounced granulation of dorsal carinae on the first through fourth metasomal segments and in shape of the genital operculum.
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