15,169 research outputs found
R Code and Data Supporting: Ecological forecasts reveal limitations of common model selection methods: predicting changes in beaver colony densities
No full textDetailed documentation in readme text file.This repository contains the R and JAGS code supporting results reported in: Johnson-Bice, S.M., J.M. Ferguson, J.D. Erb, T.D. Gable, S.K. Windels (2020). Ecological forecasts reveal limitations of common model selection methods: predicting changes in beaver colony densities. Ecological Applications [In Press].Minnesota Environment and Natural Resources Trust Fund, as recommended by the Legislative-Citizen Commission on Minnesota Resources (project M.L. 2016, Chp. 186, Sec. 2, Subd.03j)Minnesota Department of Natural ResourcesUniversity of Minnesota DuluthUniversity of Minnesota Twin CitiesJohnson-Bice, Sean M; Ferguson, Jake M; Erb, John D; Gable, Thomas D; Windels, Steve K. (2020). R Code and Data Supporting: Ecological forecasts reveal limitations of common model selection methods: predicting changes in beaver colony densities. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/rwp5-6413
Marriage record of Christian, Frederick M. W. and Ferguson, Mattie K.
No full textMarriage license for Frederick M. W. Christian and Mattie K. Ferguson. R. Lee Kirkland was the officiant
Proposed design of new township at Salamaua, Territory of New Guinea [cartographic material].
No full textInset: Proposed road designs [cross sections]; Map 236 from Ferguson Collection.; Signatures: K.L. Spinks, M.W. [Bergim], Lic. Surveyors, [illegible] District engineer ; [G. Ross Reid] Director of Works ; W. Ramsay McNicoll, Administrator.; Surveyors plan for new town at Salamaua, on Samoa Harbour, New Guinea. Shows layout of administrative, business, residential and recreation areas ; Chinatown and sites for a European hospital ; Native hospital, compound, gaol and police barracks ; and aerodrome.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-f236
R Code and Data Supporting: A comparison of survey method efficiency for estimating densities of Zebra Mussels (Dreissena polymorpha)
No full textContains data for three different survey methods (quadrat, removal, and distance-removal) in three central Minnesota Lakes. R code contains methods for formatting and estimating density in all three methods. See readme file for more information.This repository contains data and R code supporting Ferguson et al. A comparison of survey method efficiency for estimating densities of Zebra Mussels (Dreissena polymorpha).Minnesota Aquatic Invasive Species Research CenterMinnesota Environmental and Natural Resources Trust FundFerguson, Jake M; Jimenez, Laura; Keyes, Aislyn A; Hilding, Austen; McCartney, Michael A; St. Clair, Katie; Johnson, Douglas H; Fieberg, John R. (2023). R Code and Data Supporting: A comparison of survey method efficiency for estimating densities of Zebra Mussels (Dreissena polymorpha). Retrieved from the University Digital Conservancy, https://doi.org/10.13020/bjdp-p977
Communication: X-ray coherent diffractive imaging by immersion in nanodroplets
No full textCitation: Tanyag, R. M. P., Bernando, C., Jones, C. F., Bacellar, C., Ferguson, K. R., Anielski, D., . . . Vilesov, A. F. (2015). Communication: X-ray coherent diffractive imaging by immersion in nanodroplets. Structural Dynamics, 2(5), 9. doi:10.1063/1.4933297Lensless x-ray microscopy requires the recovery of the phase of the radiation scattered from a specimen. Here, we demonstrate a de novo phase retrieval technique by encapsulating an object in a superfluid helium nanodroplet, which provides both a physical support and an approximate scattering phase for the iterative image reconstruction. The technique is robust, fast-converging, and yields the complex density of the immersed object. Images of xenon clusters embedded in superfluid helium droplets reveal transient configurations of quantum vortices in this fragile system. (C) 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.Additional Authors: Neumark, D. M.;Rolles, D.;Rudek, B.;Rudenko, A.;Siefermann, K. R.;Ullrich, J.;Weise, F.;Bostedt, C.;Gessner, O.;Vilesov, A. F
R. v. Ferguson and the Search for a Coherent Approach to Mandatory Minimum Sentences under Section 12
No full textSince the early days of the Charter, uncertainty prevailed about constitutional exemptions as a remedy for breaches of the section 12 guarantee against “cruel and unusual treatment or punishment”. It was unclear whether an offender could be exempted from the application of a mandatory minimum sentence that would produce an unconstitutional result in the unique circumstances of the case. The Supreme Court of Canada recently decided this issue, ruling in R. v. Ferguson that constitutional exemptions are unavailable under section 12. However, the author argues that uncertainty lingers in the wake of Ferguson because the Supreme Court failed to resolve the underlying issue, which is how to address sentencing provisions that operate constitutionally in most cases but have unconstitutional effects in rare cases. Viewed in its jurisprudential context, Ferguson suggests that section 12 provides little protection to individuals whose exceptional circumstances render the application of a mandatory minimum sentence cruel and unusual
Dasybasis rieki Ferguson & Yeates, 2015, sp. nov.
No full textDasybasis rieki sp. nov. Ferguson & Yeates (Figs 1, 2, 3, 4, 5, 6, 7, 8) Diagnosis. Female: Occipital hairs black admixed with golden. Frons parallel sided. Callus rectangular, appearing square, glossy, touching eye margin, medial extension slightly longer than the laterodorsal extensions. Postocular rim narrow to broad. Subcallus flat to swollen, usually pilose. Sternites with dense grey pubescent surface that obscures integument colour; medially with a broad longitudinal strip of semi-erect black hairs, sternite lateral margins covered with semi-erect white hairs. Holotype: Female. Australia, New South Wales. South Durras Beach; sifted from sand along upper beach, 30 August 2013. Emerged: 17 September 2013. D.J. Ferguson & D.K. Yeates, (ANIC _ 29: 030321) ANIC. Paratypes: 4 females, 4 males. Australia, New South Wales: 1 ♀, same data as Holotype (ANIC _ 29: 030322); 1 ♂, 10 miles North of Batemans Bay, 14 October 1959, Z. Liepa (ANIC _ 29:029850) ANIC: Victoria: 1 ♀, 1 ♂, Mallacoota, Betka Beach; 37 ° 25 ’ 59 ”S 149 ° 44 ’ 28 ”E; 29–30 November 2012. D.J. & R.L. Ferguson (ANIC _ 29: 030323 – 24) ANIC; 1 ♀, Mallacoota, Betka Beach; 5–6 September 2013; emg: 1 October 2013; 37 ° 25 ’ 59 ”S 149 ° 44 ’ 28 ”E; D.J. & R.L. Ferguson, (ANIC _ 29:029848) ANIC; 1 ♂, Anglesea, 6. November 1958, N. Dobrotworsky, (ANIC _ 29:029849) ANIC; Tasmania: 1 ♂, Beach Zone, Rupert Point, Pieman River, 1 January 1954, T.G. Campbell, (ANIC _ 29:029847); 1 ♀ Eagle Hawk Neck, 20 January 1949, E.F. Riek, (ANIC _ 29: 030325) ANIC. Description. Female: Body Length: 14 mm (female paratype series: 12–14.5 mm; male paratype series: 14–16 mm); (Figs. 1–5). Head. Width: 6 mm (female paratype series: 5.8–6.1 mm; male paratype series: 5.8–6.2 mm); eyes blackish grey, densely covered with white hairs, hairs absent along dorsal and dorsolateral margins, (male paratype series: with broad near elliptical band of large eye facets, horizontal line level with base of frons, margined by smaller eye facets; yellowish hairs): Postocular rim (por, Fig. 5 A) Marginally broad with black hairs admixed with golden. Ocellar triangle reduced, only a remnant of the median ocellus present. Frons (fr, Fig. 5), index: 3.5, parallel/ slightly divergent, pale grey, with short, black hairs admixed with golden hairs. Frontal callus rectangular, appearing squarish, touching eye margin, glossy, pale hairs on lateral areas, bare medially, medial extension slightly longer than the laterodorsal extensions. Subcallus slightly swollen, covered in pale grey pubescence, dorsal margin with a pair of short triangular glossy areas, lateral and dorsolateral to antenna with short white hairs. Parafacial covered with pale grey pubescence and silver-white hairs, face pale grey with silver-white hairs admixed with black hairs; beard hairs longer, silver-white. Palp extends to the middle of the proboscis, tapering to a point, and covered with short white hairs admixed with black towards the apex (male paratype series: elongate, conical, with long white hairs, admixed with several stronger short black hairs on apical half), basal segment short and bulbous. Proboscis black, fleshy and the same length as head height; labellum large, with thin sclerotised dorsal margin at theca. Antennal scape (scp, Fig. 5 A) and pedicel (pd, Fig. 5 A) grey with short, black setae dorsally, lateral setae short, erect and white, ventral setae black admixed with white, long and erect; pedicel with dorsal tooth; flagellum (fgm, Fig. 5), first 4 basal flagellomere fused (fg 1–4, Fig. 5) blackish, basally with grey velvet pubescence, dorsal margin with broad obtuse angle, small black setae on the apex, anterior edge slightly concave, with 2 pseudo-segments evident; fg 5 –fg 8 black, slightly tapering, with fg 8 conical, several small black setae on apex; length of fg 5 –fg 8 approximating the length of fg 1–4. Thorax. Scutum dark grey with grey medial vittae on anterior half, dorsocentral vittae pale grey, with lateral areas broadly pale grey; white hairs admixed with golden along vittae, with black hairs between vittae; scutellum dorsally dark grey with long black hairs, posterolateral margins grey, with long white hairs. Notopleural lobe grey; anepisternum with admixed white and black pile; pleura and coxae grey with long silver-white hairs. Legs. All femora blackish grey surfaced with dark grey pubescence. Fore-tibia basally yellowish grey, surfaced with grey pubescence; mid and hind tibia dark grey (male paratype series: tibia can be yellowish darkening apically); hind-tibial fringe black when viewed dorsally, admixed black and white when viewed ventrally. Wing. Wing length: 12.5 mm (female paratype series: 12–13 mm; male paratype series: 11–12.5 mm), hyaline, veins dark brown-grey, vein sc setulose dorsally and ventrally, appendix of vein R 4, 1.5 x the distance the appendix is from R 5 (female paratype series: 6 specimens with the same or are shorter than the distance the appendix is from R 5; Male paratype series: 5 specimens with the same or are shorter than the distance the appendix is from R 5). Haltere. Pedicel dark grey, knob ventrally and dorsally dark grey. Abdomen. Dorsal surface grey, densely covering of black, semi-erect hairs; tergites 1–7 distal margin pale grey with white hairs; medial hairs short, pale grey triangles, with white hairs along apical margin, (male paratype series: apical bands brownish to blackish brown with some yellow-brown mottling, apical margin yellow-brown). Sternites densely covered with grey pubescence, a broad longitudinal strip of semi-erect black hairs medially, broad lateral margins covered with semi-erect white hairs. Terminalia. Paratype female: (ANIC _ 29:029848) (Fig. 8). Dorsal view; cerci darkly sclerotised, subtriangulate; tergite 10 ovoid, medially divided; tergite 9 darkly sclerotised, distinctively narrow, widely divided. Three spermathecal ducts extend from darkly sclerotised genital fork, length approximately 10 x the maximum length of the cercus, basal third of ducts transparent, becoming opaque then dark along the slightly swollen spermathecal bulb that tapers towards the apex (refer: Fig. 8). Paratype male: (ANIC _ 29: 030324). (Figs. 6, 7). 6. Dorsal view; cerci darkly sclerotised and subtriangulate; tergite 9 posteriorly undivided, apically elongated and tapered (Fig. 6). Gonocoxae, gonostyli and aedeagus (Fig. 7). Etymology. The specific epithet ‘ rieki ’ is to honor Dr Edger F. Riek, for his contribution to entomology, who was the first to collect this species in 1949. Larva. Length: 22–24.5 mm long and 3.5–4.5 mm wide (Fig. 9 A). Thoracic segments 1–3, tapering anteriorly; abdominal segments I–IV of sub-equal diameter; segment V–VII slightly tapered; segment VIII short, half the length of segment 7; all segments with fine longitudinal surface striations; colour creamy white (note: D. macrophthalma (Schiner), also breeds on beach species and is described as creamy white; see: English, 1949); length. Head capsule (Fig. 9 C, D) retractable, 5.5 mm long from the tip of the labrum to the posterior bilobed extremity of the epicranium; greatest width 1 mm; anterior darkly sclerotised; cranium weakly sclerotised; labrum laterally compressed with patches of short spines on lower lateral surfaces; distal mandibular hook heavily sclerotized, black, curved with serrated lower edge; mandibular brush bristles pale; anterior margin of the maxilla narrowly flanged; maxillary lacinia broad at the base, terminating in a short, posteriorly directed apex, inner surface with short pale spines; maxillary palp short with 2 segments; antenna arises from the anterolateral subapical surface of a forward projecting process; 1 st segment tapered to a narrow aperture, holding two very small and thin microsetae that appear connected at their base; labium (Fig. 9 B) anterolateral edges curved laterally with deep cleft medially; tentorial rods dorsally troughed medially, divided subapically. Thorax. (Fig. 9 A) Prothorax annulus of pale brown granular membrane, with 5 posteriorly directed areas of pale brown granular membrane, these tapered areas extend to the anterior margin 2 nd segment, each without a line of minute pores along mid-line, the ventral extension narrower that the widely spaced lateral extensions; segment 2 and 3 anterior margins thinly edged with granular membrane. Abdomen (Fig. 9 a), segments I–V anterior edge with raised creeping welts, creamy white granular membrane along posterior edges tapering laterally. Segments I–VII with 3 pairs of ventral and lateral prolegs on each side; segments V–VII with lateral-line of pores on posterior half of segment; segment VIII posterior spiracle (Fig. 9 E) with the sclerotised surface textured all over with small raised spots; an evenly curved elliptical margin with many filaments around the margin, with a distinct gap on each side (see Fig. 9 E); apices with numerous, short pale bristles, (it is worth comparing with the posterior spiracle of D. macrophthalma, which has a completely textured, sclerotised surface, evenly curved elliptical margin and 30 evenly distributed filaments around margin; see: Fig. 8; in English, 1949). Pupa. Length: 18 mm (Fig. 10 A). Head: The cephalothoracic setae raised from a truncated basal tubercle (Fig. 10 B); setae long; apical quarter laterally compressed; apex rounded; callus setae and vertical setae long and slender; callus tubercle short and truncated; antennal ridge conical, darkly sclerotised and anteroventrally directed; antennal sheath slightly tapered with apical tooth; abdominal orbital seta and posterior orbital seta long and slender; lateral orbital seta long and slender, tubercles joined. Thorax. Anterolateral spiracle (Fig. 10 C) relatively flat; basal alar seta long and slender; anterior mesonotal seta and posterior mesonotal seta, long and slender. Abdomen. Pleural setae long and slender, basal tubercle truncated, unevenly positioned from each other; abdominal segments II–VII with abdominal spiracles anteromedially placed on each pleura; each segment with a spinous fringe of pale spines that are generally straight; segment VIII with 3 combs of setae: dorsal comb 3 robust setae; lateral comb 3–4 slightly weaker setae; ventral comb 5–6 robust setae. Aster (Fig. 10 D), posterior surface slightly concave, with deep dorsoventrally suture medially; dorsal, lateral and ventral tubercles of aster conical, all tubercles curved towards the posterior, with apices darkly sclerotised, (the tubercle of the aster of D. macrophthalma are exceptionally elongate; see: Fig. 15, English, 1949).Published as part of Ferguson, David J. & Yeates, David K., 2015, A new species, new immature stages, and new synonymy in Australian Dasybasis flies (Diptera: Tabanidae: Diachlorini), pp. 261-273 in Zootaxa 3946 (2) on pages 263-267, DOI: 10.11646/zootaxa.3946.2.8, http://zenodo.org/record/24395
Coupled motion of Xe clusters and quantum vortices in He nanodroplets
No full textCitation: Jones, C. F., Bernando, C., Tanyag, R. M. P., Bacellar, C., Ferguson, K. R., Gomez, L. F., . . . Vilesov, A. F. (2016). Coupled motion of Xe clusters and quantum vortices in He nanodroplets. Physical Review B - Condensed Matter and Materials Physics, 93(18). doi:10.1103/PhysRevB.93.180510Additional Authors: Erk, B.;Foucar, L.;Hartmann, R.;Neumark, D. M.;Epp, S. W.;Englert, L.;Siefermann, K. R.;Weise, F.;Rudek, B.;Sturm, F. P.;Ullrich, J.;Bostedt, C.;Gessner, O.;Vilesov, A. F.Single He nanodroplets doped with Xe atoms are studied via ultrafast coherent x-ray diffraction imaging. The diffraction images show that rotating He nanodroplets about 200 nm in diameter contain a small number of symmetrically arranged quantum vortices decorated with Xe clusters. Unexpected large distances of the vortices from the droplet center (?0.7-0.8 droplet radii) are explained by a significant contribution of the Xe dopants to the total angular momentum of the droplets and a stabilization of widely spaced vortex configurations by the trapped Xe clusters. © 2016 American Physical Society
Sphaeropthalma becki Ferguson
No full textSphaeropthalma becki Ferguson Sphaeropthalma (Micromutilla) becki Ferguson, 1967. Brigham Young Univ. Sci. Bull. Biol. Ser. 8: 9. Male. Holotype data: Hillside, 0.85 mi NNW Mercury, Nye Co., Nevada, 23 Aug 1964, W.E. Ferguson (NMNH). Diagnosis of male. This species has a deeply excised mandible with a tooth forming an oblique angle (Fig. 45), lacks of mesosternal processes, has a marginal cell that is shorter than the stigma, has the first segment of the metasoma petiolate with the second segment, and has the genitalia with a short cylindrical cuspis (Fig. 2). Plumose setae are weakly developed to absent along the margins of the metasomal tergites. Female. Unknown. Material examined. California, Imperial Co.: Algodones Dunes: Cahuilla Ranger Station, 1 male, 11–15.Sep. 2007, R. Kimsey, L. Kimsey, and T.J. Zavortink (UCDC); Niland-Glamis Rd., 7.4 km NW Glamis, 6 males, 3–30.May. 2008, S. Heydon and K. Lorenzen (UCDC), 1 male, 1–2.Jul. 2008, 23.7 km NW Glamis, 2 males, 1.Jun. 2008, Museum Survey Team (UCDC); Wash Rd., 0.7 km W, Rail Road Post 168, 3 males, 18–22.Sep. 2008, R. Kimsey and T. Zavortink (UCDC); Wash Rd., 4.1 km SE, Rail Road Post 165, 1 male, 18–22.Sep. 2008, R. Kimsey and T. Zavortink (UCDC); Wash Rd. 6.6 km SE Hwy 78 Glamis, 2 males, 7–10.Jun. 2008, R. Kimsey and T. Zavortink (UCDC). Brawley, 2 males, 22.Jun. 2004, K.A. Williams (KAWC); Glamis, 3 mi. NW, 7 males, 15–16.Sep. 1972, M.S. Wasbauer and A. Hardy (CDFA), 4 males, 10.Sep. 1974, M.S. Wasbauer and R. McMaster (CDFA); Glamis, 7.5 km N, 13 males, 11–15.Sep. 2007, R. Kimsey, L. Kimsey, and T.J. Zavortink (UCDC), 1 male, 22.Sep– 15.Nov. 2008, E. Dreyfus (UCDC); Glamis, 8 mi. W, 2 males, 21.Jun. 2004, K.A. Williams (KAWC). Distribution. California and southwestern Arizona northward into southern Nevada. Remarks. This species is not endemic to the Algodones Sand Dunes. Ferguson (1967) gives a complete discussion of this species.Published as part of Pitts, James P., Wilson, Joseph S., Williams, Kevin A. & Boehme, Nicole F., 2009, Velvet ants (Hymenoptera: Mutillidae) of the Algodones sand dunes of California, USA, pp. 1-53 in Zootaxa 2131 on page 37, DOI: 10.5281/zenodo.18839
R Code and Output Supporting: Computational reproducibility in The Wildlife Society's flagship journals
No full textA full description of the data and code files is provided in the attached README.txt. Briefly, each html file uses the raw data (or processed data) to create results and figures for the manuscript. The script in 01_processing_data.html should be run first before any other subsequent scripts can be run. The zipped folder (item K) contains all of the Program R files (.R extension) for each of the html files.The goal of this study was to gauge the level of computational reproducibility, which is the ability to reach the same results using the same data and analysis methods, in the field of wildlife sciences. We randomly selected 80 papers published in the Journal of Wildlife Management and Wildlife Society Bulletin between 1 June 2016 and 1 June 2018. Of those for which we could obtain data, we attempted to reproduce their quantitative results using the original methods and data. The dataset shared in this repository is the de-identified results of our review, and the code provided here produces the results and figures in our published manuscript.Concordia College, Moorhead, Minnesota (Centennial Scholars Program)ArchMiller, Althea A; Johnson, Andrew D; Nolan, Jane; Edwards, Margaret; Elliot, Lisa H; Ferguson, Jake M; Iannarilli, Fabiola; Velez, Juliana; Vitense, Kelsey; Johnson, Douglas H; Fieberg, John R. (2019). R Code and Output Supporting: Computational reproducibility in The Wildlife Society's flagship journals. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/jny1-wy60
- …
