196,550 research outputs found
Underwoodisaurus Wermuth 1965
No full textGenus Underwoodisaurus Wermuth, 1965 Type species Phyllurus milii Bory de Saint-Vincent, 1823 by original designation. Original type locality 'Australasie sur les rives de la baie des Chiens-Marins' [= Shark Bay, Western Australia]. Neotype locality:'Bernier Island, Shark Bay'. Note: Shea (2002) demonstrated that the type of P. milii was, in fact, a specimen illustration of Nephrurus levis occidentalis but maintained current usage of the epithet milii for the species of Underwoodisdaurus to which it has uniformly been applied, and designated a neotype to fix the name. Diagnosis. A moderately large (adult SVL to 100 mm) genus of carphodactylid geckos with transverse subdigital lamellae, anterior loreals minute and strongly differentiated from posterior loreals, labial scales much larger than neighboring scales, mean of 26 presacral vertebrae, phalangeal formula unreduced (2.3.4.5.3/2.3.4.5.4), and original tail long with 33–42 postsacral vertebrae, post pygal pleurapophysis absent or reduced, rounded in cross section, and gradually tapering to tip lacking a terminal 'knob'.Published as part of Doughty, Paul & Oliver, Paul M., 2011, A new species of Underwoodisaurus (Squamata: Gekkota: Carphodactylidae) from the Pilbara region of Western Australia, pp. 20-30 in Zootaxa 3010 on page 22, DOI: 10.5281/zenodo.20438
Safe picosatellite release from a small satellite carrier
No full textThe Berlin Infrared Optical System satellite, which is scheduled for launch in 2016, will carry onboard a picosatellite and release it through a spring mechanism. After separation, it will perform proximity maneuvers in formation with the picosatellite solely based on optical navigation. Therefore, it is necessary to keep the distance of the two spacecraft within certain boundaries. This is especially challenging because the employed standard spring mechanism is designed to impart a separation velocity to the picosatellite. A maneuver strategy is developed in the framework of relative orbital elements. The goal is to prevent loss of formation while mitigating collision risk. The main design driver is the performance uncertainty of the release mechanism. The analyzed strategy consists of two maneuvers: the separation itself, and a drift-reduction maneuver of the Berlin Infrared Optical System satellite after 1.5 revolutions. The selected maneuver parameters are validated in a Monte Carlo simulation. It is demonstrated that both the risk of formation evaporation (separation of more than 50 km) as well as the eventuality of a residual drift toward the carrier are below 0.1%. In the latter case, formation safety is guaranteed by a passive safety achieved through a proper relative eccentricity/inclination vector separation
Eurydactylodes Wermuth 1965
No full textEurydactylodes Wermuth, 1965 Content. Eurydactylodes vieillardi (Bavay, 1869), E. symmetricus (Andersson, 1908), E. agricolae Henkel & Böhme, 2001, E. occidentalis, Bauer, Jackman, Sadlier & Whitaker, 2009 (Fig. 3 E). Type species. Platydactylus vieillardi Bavay, 1869 by monotypy [as type of Eurydactylus Sauvage, 1878; this name was preoccupied by Eurydactylus Laferté, 1851 = Coleoptera] Diagnosis. Eurydactylodes is distinguished from all other New Caledonian diplodactylid gekkotans by the following combination of characters: body size small (to 60.3 mm SVL); neural spines of trunk vertebrae elongate, body laterally compressed, six or seven inscriptional ribs, dorsal body scalation consists of enlarged, smooth, flattened scales; dorsal head scales enlarged to greatly enlarged; a postlabial slit present, confluent or not with subauricular groove; endolymphatic sacs expanded extracranially; margins of jaws and limbs with folds of skin; subdigital lamellae undivided or with irregular divisions; claw of digit I of manus and pes lies between a pair of separate terminal subdigital scansors; precloacal pores in males in 3–5 rows sometimes extending onto base of thighs (50–68 pores in total); original tail (100–115 % of SVL) with distal adhesive subcaudal lamellae and possessing caudal glands and a “tail-squirting” mechanism; tongue and mouth lining yellow to orange; dorsal color pattern grayish, cream, tan, or beige with darker transverse bands or markings; venter white. Distribution. Eurydactylodes has been recorded from the Îles Belep (Île Art and Île Pott only), Île Yandé, the Grande Terre and Île des Pins, but has not been found on the Loyalty Islands or any smaller satellite islands. Remarks. See Bauer and Henle (1994); Bauer and Sadlier (2000), and Bauer et al. (2009) for additional details about this genus.Published as part of Bauer, Aaron M., Jackman, Todd R., Sadlier, Ross A. & Whitaker, Anthony H., 2012, Revision of the giant geckos of New Caledonia (Reptilia: Diplodactylidae: Rhacodactylus), pp. 1-52 in Zootaxa 3404 on page 16, DOI: 10.5281/zenodo.21173
Safe Release of a Picosatellite from a Small Satellite Carrier in Low Earth Orbit
No full textThe BIROS satellite, which is scheduled for launch in 2015 into a low Earth
orbit, will carry onboard a picosatellite and subsequently release it through a spring mechanism with a fixed velocity. In the frame of the AVANTI experiment, the BIROS satellite will perform proximity maneuvers in a mid-range formation with the picosatellite, based solely on optical navigation through its onboard camera. Therefore it is necessary to keep the relative distance of the two spacecraft within certain limits. This is contradicted by the fact, that the spring mechanism is designed to create a large and safe separation between the two spacecraft.
In this paper a maneuver strategy is developed in the framework of relative orbital elements. The goal is to avoid any risk of collision on one side and to mitigate the possibility of formation evaporation on the other side. Main design drivers are several uncertainties—most prominently the performance uncertainty of the release mechanism. The analyzed strategy consists of two maneuvers: the separation itself and a drift reduction maneuver of the BIROS satellite after 1.5 revolutions. Afterwards a third maneuver is to be performed to minimize the residual drift, estimated through an orbit determination with radar tracking.
The selected maneuver parameters are validated in a Monte Carlo simulation. It is demonstrated that the risk of formation evaporation is below 0.1% as well as the eventuality of a residual drift towards the carrier. In the latter case formation safety is guaranteed by a passive safety achieved through a proper relative eccentricity/inclination vector separation
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
Quaestiones de M. Tullii Ciceronis Epistularum ad M. Brutum libris novem [microform] /
No full textFilmed with: Müller, J. / Beiträge zur Kritik und Erklärung der Briefe Cicero's an P. Lentulus -- Vollgraff, J. C. / Omfang der classieke philologie -- Weinberger, G. / Quaestiones de Orphei quae feruntur argonauticis -- Schwind, A. / Über das Recht bei Terenz -- Sell, C. / Grundriss der römischen Rechtsgeschichte -- Schwerdt, F. I. / Über die innere Form der Horazischen Oden -- Weismüller, W. / Untersuchungen zum II. Buch des Thukydides -- Sellge, H. J. / Symbola ad historiam librorum Sallustianorum condendam datur -- Seemüller, J. / Dubletten in der dritten Dekade des Livius -- Stangl, T. / Virgiliana -- Schwickert, J. J. / Triptychion klassischer kritisch-exegetischer Philologie -- Wetzel, M. / Selbständiger und bezogener Gebrauch der Tempora im Lateinischen -- Stinner, A. / Additamenta ad locos quosdam grammaticae Zumptianae -- Siebelis, K. A. / [De Rhiano] -- Zimmermann, G. F. / De necessitate, qua judices coacti fuerini capitis damnare Socratem -- Zehlicke, J. / De aliquot Antigonae locis -- Parreidt, J.H. / De lactea Livii ubertate -- Parreidt, J. H. / De suspecta Livii fide -- Horace, Passow, C. / Horatius' dritte Satire lateinisch und deutsch -- Schlegl, G. / Beispielsammlung aus Xenophon zur Einübung der Moduslehre -- Sadl, A. / Oligarchische Revolution vom Jahre 411 -- Huber, S. / Glückseligkeitslehre des Aristoteles und des hl. Thomas v. A. -- Niemeyer, K. / De locis quibusdam qui in Ciceronis de oratore libris leguntur -- Papla, A. / Quaestiones Terentianae -- Schubert, F. / Textkritische Bemerkungen zum Philoktet des Sophokles -- Veith, C. J. von / Vetera castra -- Pflügl, F. X. / Lateinische Sprichwort bei Plautus und Terenz -- Zilken, F. / De inscriptionibus latinis graecis bilingualibus quaestiones selectae -- Zucker, A. / Beobachtungen über den Gebrauch des Artikels bei Personennamen in Xenophons Anabasis -- Wegehaupt, W. / Ciceros Rede pro C. Rabirio perduellionis reo -- Weber, F. / Platons Stellung zu den Barbaren -- Werner, W. / De Libanii studiis Herodoteis -- Welcker, F. G. / Ueber die Gruppirung der Niobe und ihrer Kinder -- Pascal, C. / Incendio di Roma e i primi cristiani -- Oppian ; Miller, Max / Oppians des Jüngeren Gedicht von der Jagd in vier Büchern.Inaug.-Diss.--Basel.Includes bibliographical references.Microfilm.Mode of access: Internet
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Heterocyclic Amidines .1. A One-step Synthesis of New Alpha-substituted Imidazolylphenylacetic Acids
No full textThe reaction of alpha-phenyl-beta-formylacrylic derivatives with various amidines (benzamidine, acetamidine) and heterocyclic amidines (2-aminopyridines, 3-aminopyridazines), yields alpha-substituted imidazolylphenylacetic acids and imidazo[1,2-x] azines bearing a phenylacetic acid residue in position 3. Some mechanistic aspects of the cyclocondensation reaction will be discussed
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
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