817 research outputs found
Ausstellung der Niedersächsischen Staats- und Universitätsbibliothek Göttingen, der Niedersächsischen Landesbibliothek Hannover und des Amerika-Hauses in Hannover
No full textInterpreting the parameters of the diffusion model: An empirical validation
No full textthis article should be addressed to A. Voss, Institut fr Psychologie, Albert-Ludwigs-Universistt Freiburg, Engelbergstr. 41, D-79085 Freiburg im Breisgau, Germany (e-mail: andreas. [email protected]) or to K. Rothermund, Institut fr Psychologie der Universitt Jena, Am Steiger 3, Haus 1, 07743 Jena, Germany (e-mail: [email protected]
H. Douglas Goff and Karen Voss Peters with their plaques
No full textpermission received.H. Douglas Goff with the plaque he received for the book he authored, "Ice Cream", and Karen Voss Peters with the plaque she received for the book she author, "William meets the Stick family " at the Campus Author Recognition Program annual reception, November 7, 2013.http://author.lib.uoguelph.ca/viewAuthorBook.cfm?biblioId=605 and http://author.lib.uoguelph.ca/viewAuthorBook.cfm?biblioId=630The University of Guelph Librar
Assessing cognitive processes with diffusion model analyses: a tutorial based on fast-dm-30
No full textDiffusion models can be used to infer cognitive processes involved in fast binary decision tasks. The model assumes that information is accumulated continuously until one of two thresholds is hit. In the analysis, response time distributions from numerous trials of the decision task are used to estimate a set of parameters mapping distinct cognitive processes. In recent years, diffusion model analyses have become more and more popular in different fields of psychology. This increased popularity is based on the recent development of several software solutions for the parameter estimation. Although these programs make the application of the model relatively easy, there is a shortage of knowledge about different steps of a state-of-the-art diffusion model study. In this paper, we give a concise tutorial on diffusion modeling, and we present fast-dm-30, a thoroughly revised and extended version of the fast-dm software (Voss and Voss, 2007) for diffusion model data analysis. The most important improvement of the fast-dm version is the possibility to choose between different optimization criteria (i.e., Maximum Likelihood, Chi-Square, and Kolmogorov-Smirnov), which differ in applicability for different data sets
The Reynaert story as a vehicle for intellectual recreation: The case of the Grooten ende nieuwen Reinart de voss
No full textIn the seventeenth century Den grooten ende nieuwen Reinart de voss was written, a Dutch adaptation of the first part of the Low German Reynke de vos that had been published by Ludwig Dietz in Rostock in 1539. The anonymous author transposed the Low German text into Dutch iambic verses and added an enormous commentary, the most learned commentary in the whole European Reynaert tradition. This article studies the relation between Den grooten ende nieuwen Reinart de voss and its source, its properties, and its literary and cultural context. At the end the results are put in a European perspective
Around the world in a dugout canoe: The untold story of Captain John Voss and the Tilikum
No full textBook reviewPre-printBook review of "Around the world in a dugout canoe: The untold story of Captain John Voss and the Tilikum" by John M. MacFarlane and Lynn J. Salmon (Madeira Park: Harbour Publishing, 2019).https://viurrspace.ca/bitstream/handle/10613/23559/Barney2020.pdf?sequence=3This is an author-supplied version of a book review which was published as: Barney, D. (2020). [Review of the book Around the world in a dugout canoe: The untold story of Captain John Voss and the Tilikum, by J.M. MacFarlane & L.J. Salmon]. British Columbia History, 53(3), 38-39.
British Columbia History is a quarterly magazine published by the British Columbia Historical Federation, more information about the magazine can be found at: https://www.bchistory.ca/magazine/.Pre-print versio
Leschenius RUGICOLLIS (VOSS 1954
No full text<i>LESCHENIUS RUGICOLLIS</i> (VOSS, 1954) COMB. NOV. <p>(FIGS 4–5, 17–18, 29–30, 39, 43–44, 51)</p> <p> <i>Asymmathetes rugicollis</i> Voss, 1954: 210.</p> <p> <i>Redescription: Female.</i> Species medium-sized (LB, 9.3 mm) (Fig. 4). <i>Tegument</i> visible, reddish brown, shiny. <i>Vestiture</i> composed of scattered setae, whitish on head, legs, and venter, ocher on pronotum and elytra; setae on sides of pronotum, and margins and posterior third of elytra denser than on anterior two-thirds of disc; elytra with suberect setae and minute, decumbent, seta-like scales. <i>Rostrum</i> short (Fig. 4) (LR/WRa, 1), sides slightly convergent towards apex (WRb/WRa, 1.38), dorsum flat, strigose with longitudinal wide striae; median groove narrow, slightly exceeding posterior margin of eyes. Epistome slightly depressed. Eyes large and strongly convex. Frons strigose with longitudinal wide striae. Vertex foveolate–strigose with oblique striae. <i>Antennae</i> (Fig. 17) (LB/LA, 2.44) with scarse pilosity; scape reaching posterior margin of eyes. Funicular article 2 about 1.33¥ as long as article 1; funicular article 3, 2¥ longer than wide and funicles 4–7 slightly longer than wide; club slightly fusiform (LC/WC, 2.44).</p> <p> <i>Pronotum</i> (Fig. 4) slightly conical, slightly wider than long (WP/LP, 1.21); flanks slightly curved; disc densely foveolate on centre and granulose on sides, or completely densely granulose; median groove shallow or absent; anterior margin slightly curved anteriad, slightly thickened; base posteriorly ‘V’– shaped. S <i>cutellum</i> large.</p> <p> <i>Elytra</i> (Fig. 4) short (LE/WE, 1.37), with maximum width at middle, moderately convex; base strongly curved backwards on middle; striae with large oval punctures, striae 9–10 closer on posterior two-thirds; intervals rugose–granulose, slightly convex to flat, as wide as striae to slightly narrower; apex acute, slightly divided, and projected.</p> <p> <i>Legs</i>. Procoxae almost reaching anterior margin of prosternum; protibiae with row of between seven and nine acute small denticles and large hook-like mucro; mesotibiae with small denticles and small mucro, and metatibiae without denticles and mucro; metatibial apex with broad corbel covered with setae; apical and dorsal comb subequal.</p> <p> <i>Abdomen</i> (Fig. 18). Intercoxal portion of ventrite 1 broader than metacoxal cavities (1.5¥); ventrite 2 longer than ventrites 3 and 4 combined (1.31¥); posterior margin of ventrite 5 slightly pointed; tergites I– VII slightly sclerotized.</p> <p> <i>Terminalia.</i> Sternite VIII (Fig. 29) with plate subrhomboidal, not elongate, having apical tuft of long setae and shorter setae in apical margin; ‘V’–shaped sclerotization with wide lateral arms reaching half of plate, and median line membranose; apodeme about 2¥ longer than plate. Ovipositor (Fig. 30) shorter than ventrites 1–5 (0.72¥); without setae on sides of baculi; ventral baculi slightly divergent towards base; styli thin, directed laterally. Spermathecal body (Fig. 39) subcylindrical, long; nodulus conical, short; ramus indistinct; cornu very long; spermathecal duct (Fig. 39) medium-sized, as long as half ovipositor (~ 1.5 mm) membranous and wide.</p> <p>Male (Fig. 5). Smaller (8.3–8.7 mm) and more slender than female; rostrum slightly longer and less conical (L/W, 1.07–1.15; Wb/Wa, 1.23–1.32); antenna longer (LB/LA, 2.29–2.30), club slightly more elongate (L/W, 2.44–2.61); postocular constriction slight; pronotum (W/L, 1.09–1.22; LE/LP, 2–2.18) with base slightly bisinuate and posterolateral angles slightly projected backwards; scutellum smaller; elytra more slender (L/W, 1.52), with thickened base, curved, and angles projected anteriad, shoulders reduced; mesotibiae without denticles; metatibiae with medium-sized mucro; and posterior margin of ventrite 5 bilobed.</p> <p> <i>Genitalia</i> (Figs 43–44). Median lobe with rounded apex, in the same line with its apodemes; median lobe plus apodemes shorter than abdomen (0.88¥); apodemes shorter than remaining part of median lobe (0.70); endophallus with two wing-shaped sclerites.</p> <p> <i>Comparative notes and diagnosis</i></p> <p> <i>Leschenius rugicollis</i> comb. nov. is most closely related to the pair <i>L. bifurcatus</i> sp. nov. <i>– L. manueli</i> sp. nov. (see cladogram; Figure 52), based on similar head sculpture, frons (strigose), and pronotum (foveolate–granulose), eyes strongly convex, spermathecal body subcylindrical and short, and apex of the median lobe evenly rounded.</p> <p> <i>Leschenius rugicollis</i> comb. nov. resembles <i>L. manueli</i> sp. nov., based on the large scutellum, maximum elytral width at middle, elytral apex slightly divided, and metatibiae with subequal apical and dorsal combs and narrow corbel, and with a small mucro in males. It differs from <i>L. manueli</i> sp. nov. by the pronotum of males wider than long, with slightly bisinuate base, male elytral base curved back in a ‘V’, striae 9 and 10 approximate on posterior two-thirds, and the ovipositor without setae on sides of baculi.</p> <p> <i>Type material</i></p> <p> The type material of <i>Asymmathetes rugicollis</i> Voss, 1954 was deposited at the Museum of Hamburg, in the author’s collection, which was destroyed during World War II (Weidner, 1979), years before the publication of Voss’s paper.</p> <p>We studied specimens from the Kuschel collection, held at the NZAC (included in the list of material examined), identified by the specialist G. Kuschel. The characters of the specimens match those of the original description, except for the slightly smaller size of the type specimens (6.5–7 mm).</p> <p> For the reasons expressed above, and with the reported destruction of the type series, we decided to designate a neotype, following the conditions established in the International Code of Zoological Nomenclature (ICZN), Article 75.3. <i>Neotype</i>. Female, 9.3 mm long, ‘ Loja, Abbé Gaujon col., <i>Asymmathetes rugicollis</i> Voss Det. G. Kuschel 1985 ’ (NZAC).</p> <p> <i>Other material examined</i></p> <p> ECUADOR. <i>Loja:</i> Loja, Abbé Gaujon col., <i>Asymmathetes rugicollis</i> Voss Det. G. Kuschel 1985 (2♀♀ 2♂♂ NZAC).</p> <p> <i>Distribution:</i> Ecuador (Loja), about 2100 m a.s.l.</p>Published as part of <i>Río, María Guadalupe Del, Malvardi, Adriana Elena & Lanteri, Analia, 2012, Systematics and cladistics of a new Naupactini genus (Coleoptera: Curculionidae: Entiminae) from the Andes of Colombia and Ecuador, pp. 54-71 in Zoological Journal of the Linnean Society 166 (1)</i> on pages 66-67, DOI: 10.1111/j.1096-3642.2012.00833.x, <a href="http://zenodo.org/record/4720266">http://zenodo.org/record/4720266</a>
Foliar nutrient concentrations and potential limitations of white spruce (Picea glauca (Moench) Voss) in Yukon, Canada
No full text"Although nutrient deficiencies are not uncommon in forests across the north, little is known about these limitations in the Yukon, and even less about how these limitations have been and/or will be affected by climate. To address existing edaphic limitations to forests in the Yukon, an investigation of the nutrient concentrations of white spruce (Picea glauca (Moench) Voss) foliage was undertaken throughout various regions of Yukon in 2009. By comparing individual nutrient concentrations to critical values and reviewing nutrient ratios, the results identified nitrogen (N) as being commonly severely deficient. Phosphorus (P) and sulphur (S) were also commonly deficient, whereas magnesium (Mg) and potassium (K) were mostly adequate with few reports of slight deficiency levels. In contrast, calcium (Ca) was adequate at all locations. Of the micronutrients, zinc (Zn) and manganese (Mn) were the only elements in adequate supply at all sites while slight to moderate deficiencies were commonly indicated for all other micronutrients across the study area. Nutrient limitations may ultimately restrict the growth response of white spruce to climate changes and/or increasing atmospheric CO₂."Not peer reviewe
Effects of HCDR transplantation on the biochemical properties of diverse antibody active sites
No full textThe diverse active site structures of Map 4-4-20 (pocket; anti-fluorescein) and 04-01(cleft; anti-ssDNA) have been studied extensively (Herron et al., 1989; Denzin et al., 1991; Herron et al., 1991; Denzin et al., 1993; Rumbley et al., 1993), and have led to the hypothesis that the unique biochemical properties exhibited by the active sites of these two antibodies are a function of properties intrinsic to their respective heavy chains, as the light chains are nearly identical, while the heavy chains differ significantly (Bedzyk et al., 1990; Smith et al., 1989; Smith and Voss, 1990). In order to investigate this hypothesis, hybrid single chain antibodies were generated by transplanting heavy chain framework and complementarity determining regions (HFRs and HCDRs) from anti-fluorescein SCA 4-4-20 into the H-chain of anti-ssDNA 04-01 as a means to identify those HFRs and HCDRs required to convey the biochemical properties (structure, function, and stability) of diverse antibody active sites, i.e., a cleft versus a pocket. Such analyses yielded significant information concerning the dependence of antibody active site properties on heavy chain primary structure, which could be applied to other systems to aid in the understanding of the relationships between primary structure and the various biochemical properties exhibited by a protein.Made available in DSpace on 2011-05-07T12:19:55Z (GMT). No. of bitstreams: 2
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Measuring Wikipedia
No full textWikipedia, an international project that uses Wiki software to collaboratively create an encyclopaedia, is becoming more and more popular. Everyone can directly edit articles and every edit is recorded. The version history of all articles is freely available and allows a multitude of examinations. This paper gives an overview on Wikipedia research. Wikipedia’s fundamental components, i.e. articles, authors, edits, and links, as well as content and quality are analysed. Possibilities of research are explored including examples and first results. Several
characteristics that are found in Wikipedia, such as exponential growth and scale-free networks are already known in other context. However the Wiki architecture also possesses some intrinsic specialities. General trends are measured that are typical for all Wikipedias but vary between languages in detail
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