4,604 research outputs found
Funeral Notice, David F. Love, April 7, 1931
No full textThis funeral notice announces the funeral services of David F. Love of Kosciusko, Mississippi on April 7, 1931 with Reverend A. T. Cinnamond officiating.https://scholarsjunction.msstate.edu/mss-webb-collection/1150/thumbnail.jp
Single- and Multi-carrier Quadrature Amplitude Modulation: Principles and Applications for Personal Communications, WATM and Broadcasting: 2nd
No full textSingle- and Multi-carrier Quadrature Amplitude Modulation Principles and Applications for Personal Communications, WLANs and Broadcasting L. Hanzo Department of Electronics and Computer Science, University of Southampton, UK W. Webb Motorola, Arlington Heights, USA formerly at Multiple Access Communications Ltd, Southampton, UK T. Keller Ubinetics, Cambridge Technology Centre, Melbourn, UK formerly at Department of Electronics and Computer Science, University of Southampton, UK Motivated by the rapid evolution of wireless communication systems, this expanded second edition provides an overview of most major single- and multi-carrier Quadrature Amplitude Modulation (QAM) techniques commencing with simple QAM schemes for the uninitiated through to complex, rapidly-evolving areas, such as arrangements for wide-band mobile channels. Targeted at the more advanced reader, the multi-carrier modulation based second half of the book presents a research-orientated outlook using a variety of novel QAM-based arrangements. * Features six new chapters dealing with the complexities of multi-carrier modulation which has found applications ranging from Wireless Local Area Networks (WLAN) to Digital Video Broadcasting (DVB) * Provides a rudimentary introduction for readers requiring a background in the field of modulation and radio wave propagation * Discusses classic QAM transmission issues relevant to Gaussian channels * Examines QAM-based transmissions over mobile radio channels * Incorporates QAM-related orthogonal techniques, considers the spectral efficiency of QAM in cellular frequency re-use structures and presents a QAM-based speech communications system design study * Introduces Orthogonal Frequency Division Multiplexing (OFDM) over both Gaussian and wideband fading channels By providing an all-encompassing self-contained treatment of single- and multi- carrier QAM based communications, a wide range of readers including senior undergraduate and postgraduate students, practising engineers and researchers alike will all find the coverage of this book attractive
Viscosupplementation for knee osteoarthritis: a focus on Hylan G-F 20
No full textDavid Webb,1 Poobalan Naidoo2,3 1Pattacus Medical, Randburg, South Africa; 2Medical Affairs, Sanofi House, Midrand, South Africa; 3Department of Health Informatics, School of Health Professions, Rutgers, State University of New Jersey, NJ, USA Abstract: Knee osteoarthritis is a chronic degenerative joint disease characterized by destruction of articular cartilage with resultant para-articular bone changes. It is a major cause of disability in older persons and is managed by surgical and nonsurgical interventions. Pharmacotherapy includes acetaminophen, nonsteroidal anti-inflammatory agents, and intra-articular steroids. Another treatment option is viscosupplementation with intra-articular injection of hyaluronan (HA). The full mechanism of action of exogenous HA is uncertain, but studies indicate that it may promote endogenous HA production, reduce inflammation, prevent degeneration of cartilage and promote cartilage regeneration. Clinically, HA may improve symptoms of osteoarthritis and delay time to total knee replacement surgery. However, clinical studies are heterogenous and of varying quality, and thus there is a need for more robust studies to determine the place of viscosupplementation in the management of knee osteoarthritis. Keywords: knee osteoarthritis, viscosupplements, hylan, Hylan G-F 2
The construction of Karen Karnak: The multi-author-function
No full textThis thesis is situated within the comparatively recent developments of Web 2.0 and the emergence of interactive WikiMedia, and explores the mode of authorship within a Read/Write culture compared to that of a Read/Only tradition. The hypothesis of this study is that the role of the audience has become merged with the author, and as such, represents new functions and attributes, distinct from a more conventional concept of authorship, in which the roles of audience and author are more separate. Read/Write and participatory culture, as defined by this study, is focused on collaboration, and includes the influences of D.I.Y. culture, Open-Source practices and the production of text by multiple authors. Multi-authorship presents a re-thinking of several concepts which support the notion of the individual author, since the focus of multi-authorship is not on attribution and ownership of a finished text, but on the continued malleability of a text. Modes of multi-authorship, demonstrated in the use of the pseudonyms Alan Smithee and Karen Eliot, represent declarative authors whose names signify multiple origins, whilst concurrently indicating a distinct body of work. The function of these names form an important context to this study, since primary research involves the construction of an experimental mode of multi-authorship utilising WikiMedia technology and the interaction of thirty nine participants, who are invited to create a body of work under the collective pseudonym Karen Karnak. The data generated by this experiment is analysed using aspects of Michel Foucault's author-function to identify and determine power structures inherent in the WikiMedia context. The interplay of power structures, including concepts such as identity, ownership and the body of work, affect the resulting mode of authorship and contribute to the construction of Karen Karnak, suggesting further areas of research into the emerging multi-author
Evolutionary Relationships Of Popenaias popeii and the Early Evolution Of Lampsiline Bivalves (Unionidae): Phylogenetic Analyses Of Dna and Amino Acid Sequences From F and M Mitochondrial Genomes
No full textLampsiline bivalves typically are considered a tribe within the Unionidae (Ambleminae: Lampsilini), and they display extraordinary morphological adaptations for reproduction. Recent studies have weakly corroborated the monophyly of the Lampsilini, but evolutionary relationships within the tribe and its sister lineage have yet to be elucidated convincingly. However, these determinations are necessary to better understand the evolution of the spectacular morphological diversity present in lampsilines, as well as the specific circumstances surrounding the group\u27s origin. To clarify these matters, phylogenetic analyses were carried out on 2,310 nucleotide and 770 amino acid position matrices containing sequences from five protein coding gene regions on the F and M mitochondrial genomes from 21 amblemine species. Nodal support values on the best Bayesian inference tree robustly confirm the monophyly of lampsilines and a clade containing the following well-supported relationships: (((lampsilines, Popenaias) Plectomerus) Amblema). Furthermore, a maximum likelihood estimate of ancestral character states indicates that the ectobranchy observed in lampsilines Popenaias is homologous and was derived from a tetragenous ancestral lineage. The sister taxon status of P. popeii to the traditional lampsiline taxa and the occasional use of the inner demibranchs for brooding suggest that this species could still retain character states of the lampsiline ancestral lineage. Therefore, additional studies of morphology, reproduction, phylogeography and ecology for Popenaias, Amblema, Plectomerus, and other taxa within the Amblemini could clarify the circumstances surrounding the origin of the lampsiline bivalves
Molecular Systematics of Fusconaia (Bivalvia: Unionidae: Ambleminae)
No full textThe genus Fusconaia Simpson, 1900, as currently recognized, includes ~12 species in the tribe Pleurobemini. Two species are federally listed and several more are imperiled in part or all of their ranges; one species is probably extinct. However, classification at the species and genus level has been problematic, and it is unknown whether imperiled populations represent merely local ecophenotypic variations or endemic species. To provide additional evidence on the systematics of this group and to help establish conservation priorities, we sequenced two mitochondrial genes for all available species of Fusconaia as well as representatives of other genera of Pleurobemini and several outgroups. Both cox1 and nad1 provided well-resolved phytogenies. Some putative species show little molecular differentiation, supporting their synonymization. In particular, Fusconaia flava (Rafinesque, 1820), F. cerina (Conrad, 1838), and the easternmost populations previously assigned to F. askewi (Marsh, 1896) are not differentiated by our data. Although the majority of Fusconaia places in a well-supported clade that includes F. flava, the type species, others do not. “Fusconaia” barnesiana (Lea, 1838), the type of Pleuronaia Frierson, 1927, places with “Lexingtonia” dollabelloides (Lea, 1840) and “Pleurobema” gibberum (Lea, 1838). “Fusconaia” ebenus (Lea, 1831) and “F.” rotulata (Wright, 1899) form a distinct clade outside of Pleurobemini. “Fusconaia” succissa(Lea, 1852) is assigned to the pustulosa group of Quadrula (subgenus Rotundaria), along with Quincuncina infucata (Conrad, 1834). Conversely, the type species of Quincuncina, Quincuncina burkei Walker, 1922, is assigned to Fusconaia. Populations in the Ozark region assigned to F. flava and populations in the Suwannee River system assigned to Quincuncina infucata probably deserve species-level recognition
Nigranitida margaretae Webb, spec. nov.
No full text<i>Nigranitida margaretae</i> Webb spec. nov. <p> <b>Etymology:</b> This species is named in honor of the senior author’s granddaughter, Margaret Kelly McClain.</p> <p> <b>Diagnosis.</b> <i>Nigranitida margaretae</i> is unique within the genus <i>Nigranitida</i>, as it is the only species to possess setae on the katepisternum and the male gonostylus to have a basodorsal lobe and a thin lateral flange.</p> <p> <b>Description of holotype male</b> (MEI 121138).</p> <p>Morphological variation (n=2).</p> <p>Body length 5.3 mm (5.3–6.2, 5.8 mm).</p> <p> <b>Head</b>. Length 0.64 mm (0.64–0.90, 0.77 mm). Frons pruinescence gray, with small median dark area dorsally. Antenna, dark brown, pruinescence gray, Ant./HL 0.84 (0.73– 0.84, 0.79); scape length 0.16 mm (0.16–0.20, 0.18 mm), length/width 1.6 (1.6–1.8, 1.7 mm), scape/pedicel length 2.0, scape/flagellum width 0.7 (0.7–0.9, 0.8), setae dark brown with a few white, elongate setae ventrally; pedicel length 0.08 mm (0.08–0.10, 0.09 mm), length/width 0.7, (0.7–1.0, 0.8); first flagellomere oval, tapered apically, flagellum length 0.30 mm (0.30–0.36, 0.33 mm), length/width 2.1 (2.1–3.0, 2.6), flagellum/scape length 1.9 (1.8–1.9, 1.8). Parafacial pruinescence silver gray. Maxillary palpus pale reddish brown, apex yellow; length 0.30 mm (0.30–0.38, 0.34 mm), length/width 6.0 (4.8–6.0, 5.4); setae white. Genal setae white. Occipital setae white ventrally becoming appressed dorsolaterally; macrosetae dark reddish brown, extending ventrally in single row from lateral end of postocular macrosetae.</p> <p> <b>Thorax.</b> Macrosetae 3 np, 1 (1–2) sa, 1 pa, 0 dc, 2 sc. Mesonotum with vittae dark brown, pruinescence light gray, separated by broad band of gray pruinescence; setae white, erect intermixed with pale brown, appressed setae. Pleuron dark reddish brown, pruinescence silver, dense; setae white on propleuron, anepisternum, katepisternum, laterotergite, metanepisternum, and scutellum. <i>Wing.</i> Length 4.0 mm (4.0–5.0, 4.5 mm), length/width 2.4 (2.4–2.8, 2.6); membrane opaque; veins brown; pterostigma dark brown. Halter dark brown. <i>Legs.</i> Femora dark brown, pruinescence white; setae white ventrally on fore­ and midfemora; av 3:1:4, pv 0:0:3. Tibiae dark yellowish brown, apex brown. Tarsi dark reddish brown.</p> <p> <i>Nigranitida margaretae</i> spec. nov. 28. Tergite 8, epandrium, cerci, hypoproct, dorsal view (MEI 106756). 29. Sternite 8, hypandrium, gonocoxite, ventral view. 30. Gonocoxite, hypandrium, dorsal view. 31. Gonocoxite, left lateral view. 32. Gonostylus, left lateral view. 33. Aedeagus, dorsal view (inset ejaculatory apodeme cross­section). 34. Aedeagus, ventral view. 35. Aedeagus, left lateral view. Scale= 0.1 mm.</p> <p> <b>Abdomen.</b> Cuticle dark reddish brown, pruinescence white, dense, less dense on anterolateral corners of tergites 2–3 and 5–8; dorsal setae white, appressed, lateral setae white, erect. <i>Terminalia</i>. Epandrium (Fig. 28) quadrate, anterior margin deeply emarginate, posterolateral margin broad, slightly scalloped, setae dark yellow; hypoproct (Fig. 28), posterior margin emarginate, ending at apex of cercus. Gonocoxite ventral view (Fig. 29), sides broadly rounded, ending in short blunt point, setae dark yellow; dorsal view (Fig. 30), gonocoxal bridge large; lateral view (Fig. 31) quadrate, tapering to broad dorsoposterior point. Gonostylus (Fig. 32) lacking basodorsal lobe; ventral margin rounded, setae dark yellow. Aedeagus with dorsal apodeme (Fig. 33) oval, sides rounded, anterior margin truncate; ventral apodeme (Fig. 34), anterior margin deeply emarginate, tapered laterally to thick point, ventral surface lacking pair of short, ventromedial projections; distiphallus (Fig. 33) broad basally, tapered posteriorly, lateral view (Fig. 35), sinuate; ejaculatory apodeme (Fig. 33) bulbous posteriorly, anterior half moderately expanded laterally, sides emarginate, anterior margin truncate, not extending beyond anterior margin of dorsal apodeme.</p> <p> <b>Female.</b> Unknown.</p> <p> <b>Biology.</b> <i>Nigranitida margaretae</i> has been collected in Malaise traps in September and October.</p> <p> <b>Specimens Examined.</b> The holotype male of <i>Nigranitida margaretae</i> Webb (MEI 18051) was collected in Argentina, Mendoza Prov., Parque Provincial Telleca, dunes, 9/ 17­IX­1999; malaise, M.E. Irwin, F.D. Parker, 32.3622°S, 66.0456° W. and is deposited in the CAS (Type No. 18025). PARATYPE: Argentina, Tucumán Prov., Fuete Quemado [­ 26.617, ­66.05], 18.X.1997, Irwin, M. E., Parker, F. D., Roig, S., 1 male MEI 106756 (INHS).</p>Published as part of <i>Webb, Donald W. & Metz, Mark A., 2004, The South American genus Nigranitida Metz (Diptera: Therevidae: Therevinae) with the description of three new species, pp. 1-16 in Zootaxa 757</i> on pages 13-15, DOI: <a href="http://zenodo.org/record/158751">10.5281/zenodo.158751</a>
Primers for amplifying the hypervariable, male-transmitted COII-COI junction region in amblemine freshwater mussels (Bivalvia: Unionoidea: Ambleminae)
No full textFreshwater bivalves in the superfamily Unionoidea possess distinct male (M)- and female (F)-transmitted mitochondrial DNA (mtDNA). The former evolves independently of and at a significantly faster rate than the latter. Thus, population genetic and phylogenetic analyses of M sequences facilitate the generation of independent estimates of genetic variation and evolutionary relationships which are often more robust than those provided by analyses of F sequences alone. However, M mtDNA\u27s rapid substitution rate often renders polymerase chain reaction (PCR) amplification difficult with ‘universal’ primers. Herein, we report on three pairs of PCR primers that consistently amplify the hypervariable M COII-COI gene junction region in 25 bivalve genera (Unionoidea: Ambleminae)
Volume 62, Number 04 (April 1944)
No full textDe Gustibus non est Disputandum
Great Mr. Handel Enters the Films
Gloria in Excelsis Deo!
Piano Practice Game That Is Fun
Great Pipe Organs in American Mansions (interview with Archer Gibson)
Great Mr. Handel Now in the Films: Scenes from the English Technicolor Success, Courtesy of Midfilm, Inc.
Building Musicianship (interview with David and Clara Damrosch Mannes)
Rolling Her Way to Triumph: How a Girl with a Gift Arrived by the Wheel-Chair Route (interview with Ethelwynne Kingsbury)
Reaching Fame the Hard Way (interview with Jan Peerce)
Music Should be Fun for Children: How Music Parties Made Practicing a Joy
So You\u27re Going to Play a Concerto! (interview with Reginald Stewart)
Technic of the Month—Prelude in F Major, Op. 28, No. 23, by Frédéric Chopinhttps://digitalcommons.gardner-webb.edu/etude/1217/thumbnail.jp
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