116,551 research outputs found
The mathematical research of William Parry FRS
No full textIn this article we survey the mathematical research of the late William (Bill) Parry, FRS
Parry syllogisms
No full textParry discusses an extension of Aristotle's syllogistic that uses four nontraditional quantifiers. We show that his conjectured decision procedure for validity for the extended syllogistic is correct even if syllogisms have more than two premises. And we axiomatize this extension of the syllogistic
Lipostructure in Parry-Romberg Disease
No full textParry-Romberg syndrome is a disease characterized by progressive hemifacial atrophy. Multiple surgical procedures have been used to improve the facial volume and contours of patients with this disease, including alloplastic, silicone, or collagen implants; lipofilling; and pedicled or free-flap transplants. The present case describes the successful application of lipostructure to treat a woman with Parry-Romberg syndrome affecting the left side of her face
Leptinopterus affinis Parry 1872
No full textLeptinopterus affinis Parry, 1872 Leptinopterus affinis Parry, 1872: 80, plate 1 (description and illustration); Heyne & Taschenberg 1908: 54; Lüderwaldt 1935: 475, plate 2; Blackwelder 1944: 196; Didier & Séguy 1953: 128 (462); Benesh 1960: 51; Maes 1992: 62; Mizunuma & Nagai 1994: 278, (116); Krajcik 2001: 27; Krajcik 2003: 93; Baba 2003: 20 (Figs. 1–4). nomen nudum: Leptinopterus pulchellus Parry 1864: 85. nomen nudum: Leptinopterus pulchellus Klug (ined.) Nonfried 1891: 281. nomen nudum: Leptinopterus nitidus ab. lepidus Lüderwaldt 1930: 124. Leptinopterus affinis Parry and L. nitidus Lüderwaldt are very similar except for the femoral coloration, which is the main character that can be used to distinguish these two species. The femora in L. affinis are entirely dark yellow, while in specimens of L. nitidus they are totally black. After examining the types of Lüderwaldt at MZSP, I concluded that “ L. nitidus ab. lepidus Lüderwaldt, 1930 ” is actually L. affinis, and not L. nitidus as previously concluded by Benesh (1960) and Krajcik (2001). In addition, some specimens identified by Lüderwaldt (1935) as L. v-niger (Westwood) from Santa Catarina State were also L. affinis and L. nitidus specimens. Leptinopterus v-niger has its distribution restricted to eastern Brazil, not extending as far south, and is also not morphologically similar to the other species cited here. The elytral pattern is variable within these species and is not a good character for the identification of Leptinopterus species. Leptinopterus affinis and L. nitidus are sympatric, found in the southern states of Brazil.Published as part of Grossi, Paschoal Coelho, 2009, Description of two new species of Leptinopterus Hope (Coleoptera: Lucanidae: Lucaninae) with notes on the taxonomy and natural history of the genus, pp. 32-44 in Zootaxa 2172 on page 35, DOI: 10.5281/zenodo.18922
Does Britain or the United States Have the Right Gasoline Tax?
No full textThis paper develops an analytical framework for assessing the second-best optimal level of gasoline taxation, taking into account unpriced pollution, congestion, and accident externalities and interactions with the broader fiscal system. We provide calculations of the optimal taxes for the United States and the United Kingdom under a wide variety of parameter scenarios, with the gasoline tax substituting for a distorting tax on labor income. Under our central parameter values, the second-best optimal gasoline tax is 1.34 per gallon for the United Kingdom. These values are moderately sensitive to alternative parameter assumptions. The congestion externality is the largest component in both nations, and the higher optimal tax for the United Kingdom is due mainly to a higher assumed value for marginal congestion cost. Revenue-raising needs, incorporated in a “Ramsey” component, also play a significant role, as do accident externalities and local air pollution. The current gasoline tax in the United Kingdom ($2.80 per gallon) is more than twice this estimated optimal level. Potential welfare gains from reducing it are estimated at nearly one-fourth the production cost of gasoline used in the United Kingdom. Even larger gains in the United Kingdom can be achieved by switching to a tax on vehicle miles with equal revenue yield. For the United States, the welfare gains from optimizing the gasoline tax are smaller, but those from switching to an optimal tax on vehicle miles are very large.gasoline tax, pollution, congestion, accidents, fiscal interactions
Leptinopterus affinis Parry 1872
No full textLeptinopterus affinis Parry, 1872 Leptinopterus affinis Parry, 1872: 80, plate 1 (description and illustration); Heyne & Taschenberg 1908: 54; Lüderwaldt 1935: 475, plate 2; Blackwelder 1944: 196; Didier & Séguy 1953: 128 (462); Benesh 1960: 51; Maes 1992: 62; Mizunuma & Nagai 1994: 278, (116); Krajcik 2001: 27; Krajcik 2003: 93; Baba 2003: 20 (Figs. 1–4). nomen nudum: Leptinopterus pulchellus Parry 1864: 85. nomen nudum: Leptinopterus pulchellus Klug (ined.) Nonfried 1891: 281. nomen nudum: Leptinopterus nitidus ab. lepidus Lüderwaldt 1930: 124. Leptinopterus affinis Parry and L. nitidus Lüderwaldt are very similar except for the femoral coloration, which is the main character that can be used to distinguish these two species. The femora in L. affinis are entirely dark yellow, while in specimens of L. nitidus they are totally black. After examining the types of Lüderwaldt at MZSP, I concluded that “ L. nitidus ab. lepidus Lüderwaldt, 1930 ” is actually L. affinis, and not L. nitidus as previously concluded by Benesh (1960) and Krajcik (2001). In addition, some specimens identified by Lüderwaldt (1935) as L. v-niger (Westwood) from Santa Catarina State were also L. affinis and L. nitidus specimens. Leptinopterus v-niger has its distribution restricted to eastern Brazil, not extending as far south, and is also not morphologically similar to the other species cited here. The elytral pattern is variable within these species and is not a good character for the identification of Leptinopterus species. Leptinopterus affinis and L. nitidus are sympatric, found in the southern states of Brazil.Published as part of Grossi, Paschoal Coelho, 2009, Description of two new species of Leptinopterus Hope (Coleoptera: Lucanidae: Lucaninae) with notes on the taxonomy and natural history of the genus, pp. 32-44 in Zootaxa 2172 on page 35, DOI: 10.5281/zenodo.18922
Phthiracarus clavatus Parry, 1979, sp. nov.
No full text<p>Phthiracarus clavatus sp. nov.</p> <p>(Fig. 7A-C; Pl. 3c, f)</p> <p>Adult (Pl. 3c): Large and strongly sclerotized. The aspis (Fig. 7C) ranges in length from 279 - 324 µm with a greatest width of 192 - 208 µm. All the dorsal setae are long and conspicuous. Setae (it) and (la) are more or less equal in length and both pairs of setae reach the level of the rostrals. The latter extend to the anterior margin of the aspis. In the paratype setae (la) are only half the length of setae (it). The sensillus (Fig. 7B; PI. 3f) is 30 - 40 µm long, broadly clavate and distinctly serrated in the distal half. The notogaster (Fig. 7A) ranges in length from 619 - 659 µm with a greatest depth of 421 - 458 µm. All the setae are long (more than the distance c1 - d1) and procurved. Setae c1_3 form a row just behind the posterior margin of the collar. Vestigial f1 is located a short distance posterior to seta h1. The fissures ip and ips are absent. On each anal plate there are five long setae; an1-2 and ad3 being more or less equal in length and somewhat shorter than ad1-2. The chelicerae are approximately 182 µm in length. The principal Segment carries about 20 sharply pointed spines on the paraxial surface and about 18 conical spines antiaxially. The leg chaetotaxy is of the 'complete type' with the setal formulae: I (1-4-2-5-16-1); II (1-3-2-3-12-1); III (2-2-1-2-10-1) and IV (2-1-1-2-10-1). On tarsus I the distal seta coupled with solenidion omega2 is rather short. Seta d on femur I is long, straight and only weakly serrated.</p> <p>Types: Holotype, BMNH reg. no. 1976.2.18.1, from mull soil, Meathop Wood, Westmorland, 19.iii.63 (P. N. Lawrence). Paratype, 1976.2.18.2, from Phragmites litter, Woodbastwick Marshes, Norfolk, 10.vii.74 (S. J. Moore).</p> <p>Distribution: P. clavatus was also recorded from The Woburn Estate, Bedfordshire, 10.iv.72 (B. W. Parry) and from Rosthwaite, Cumberland, 18.V.59 (P. N. Lawrence). This species was not abundant in any of the samples examined.</p> <p>Remarks: P. clavatus appears to be similar to P. borealis (Trägärdh) recorded in rotting birch leaves, Sarek, Swedish Lapland. Three 'cotypes' of borealis (cleared but undissected) were ex- amined and found to be generally larger (notogastral length 659 - 842 µm) and more heavily sclerotized than clavatus. Moreover, in P. borealis the notogastral setae are erect while in P. clavatus they are procurved. The general form of the sensillus is similar in both species.</p> <p>P. clavatus also resembles P. setosellum bryobium described by Jacot (1930) from upland swamp moss, East Village, Monroe, Connecticut, USA. However, in comparison with clavatus, the 'cotype' of setosellum bryobium is much smaller (notogastral length about 252 µm). The notogastral setae appear to be of the same general form in both species. The sensillus, which appears to be lobular in Jacot's figure, is missing in the 'cotype'.</p>Published as part of <i>Parry, B. W., 1979, A revision of the British species of the genus Phthiracarus Perty 1841 (Cryptostigmata: Euptyctima), pp. 323-363 in Bull. British Mus. nat. Hist., Zool. ser. 35</i> on pages 338-33
Matija Murko, Roman Jakobson in Parry-Lordova teorija ustnega pesništva
No full textThe aim of this study is to demonstrate the so far neglected role played by Czechoslovakian Slavistics in the shaping of the Parry-Lord oral-formulaic theory. The process is presented as a genuine discovery story rooted within a specific scientific milieu (A. Meillet, Prague linguistic circle, etc.). The story\u27s protagonists are Matija Murko, Roman Jakobson, and several other scholars. Murko\u27s and Parry\u27s research strategies, used especially during their journeys to the Balkans in the 1930s, are compared. The paper reveals certain ties between Murko and Lord, including some previously unpublished evidence.Namen pričujoče raziskave je prikazati do sedaj zanemarjeno vlogo češkoslovaških slavistov pri oblikovanju Parry-Lordove teorije ustnega pesništva. Potek predstavlja v obliki zgodbe o pristnem odkritju, ki izhaja iz določenega znanstvenega okolja (Antoine Meillet, praški lingvistični krožek itd.). Glavne vloge v njej igrajo Matija Murko, ustanovitelj češkoslovaške slavistike Roman Jakobson in nekateri drugi raziskovalci. Največ pozornosti članek posveča Murkovim in Parryjevim znanstveno-raziskovalnim strategijam, ki sta jih uporabljala med potovanji na Balkan leta 1930, in jih primerja. Članek razkriva tudi določene povezave med Murkom in Lordom, ter nekatere njihove dokaze, ki do sedaj še niso bili objavljeni
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
The marriage record of Knowles, Conrad L. and Parry, Ella
No full textMarriage license for Conrad L. Knowles and Ella Parry. V. Castaing was the Justice of the Peace
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