1,169 research outputs found
FIGURE 1. Coniocarpon rubrocinctum. A in Placement of Arthonia rubrocincta in Coniocarpon (lichenized Ascomycota: Arthoniaceae), with an extended range for the species in southeastern North America and the Caribbean
No full textFIGURE 1. Coniocarpon rubrocinctum. A. Coastal habitat with phorophyte Sabal palmetto on right (Bald Head Island, North Carolina). B. Thallus from South Carolina showing prothallus, ascomata and pycnidia (Perlmutter 182a). C. Ascomatal section in water (Perlmutter 4307). D. Asci with spores in K/I (Anonymous s.n.). E. Ascospore in water (Perlmutter 4307). Scale bars: B = 2.0 mm; C = 50 μm; D = 20 μm; E = 10 μm.Published as part of Perlmutter, Gary B., Miranda-González, Ricardo & Bungartz, Frank, 2023, Placement of Arthonia rubrocincta in Coniocarpon (lichenized Ascomycota: Arthoniaceae), with an extended range for the species in southeastern North America and the Caribbean, pp. 278-282 in Phytotaxa 589 (3) on page 280, DOI: 10.11646/phytotaxa.589.3.6, http://zenodo.org/record/777700
Coniocarpon rubrocinctum Perlmutter, R. Miranda & Bungartz 2023, comb. nov.
No full textConiocarpon rubrocinctum (G. Merr. ex Grube & Lendemer) Perlmutter, R. Miranda & Bungartz comb. nov. (Fig 1) MycoBank No. MB 847702 Basionym: — Arthonia rubrocincta G. Merr. ex Grube & Lendemer (2009: 9). Type: — UNITED STATES. Florida: Collier County, Fakahatchee Strand State Preserve, vicinity of Ranger Station, disturbed roadside vegetation and shaded swampy hardwood forest, on petioles of Sabal palmetto, 4 March 2009, J.C. Lendemer 15506 (holotype NY 01133735, n.v.; isotypes distributed as Lichens of Eastern North America Exsiccati #351, DUKE!). Description: — Life form lichenized fungus. Thallus endoperidermal to epiperidermal, thin, effuse; surface whitish or greenish gray, in older specimens pale tan, smooth, occasionally with reddish or orange pigment crystals and areas of pinkish staining; prothallus brown, often as contact lines. Photobiont trentepohlioid alga, endoperidermal; cells (7.8–) 11.7 (–18.2) × (5.2–) 8.3 (–15.6) µm (n = 39), in short branched chains. Ascomata dispersed, sessile, elongate to furcate, lirellate with ±straight branches and acute tips, (0.4–) 1.0 (–1.6) × (0.2–) 0.3 (–0.5) mm (n = 60); disk flat, brown, often covered with whitish pruina; margin thick, coated with red or orange pruina. In section ascoma (104–) 139 (–208) µm high (n = 6). Excipuloid layer lateral, (26–) 56 (–130) µm (n = 12) wide, dark brownish and infused with reddish pigment crystals. Epithecium (13–) 21 (–26) µm (n = 8) thick, brownish; hymenium hyaline, yellowish in thick sections, (52–) 64 (–91) µm high (n = 10); hypothecium pale brownish, (22–) 42 (–104) µm thick (n = 8). Asci abundant, clavate, (39.0–) 53.3 (–78.0) × (10.5–) 17.0 (–34.0) µm (n = 60), 8-spored, stipe short or indistinct, tholus (4.0–) 8.5 (–15.0) µm thick (n = 10); ascospores narrowly obovate, hyaline, smooth, faintly verrucose and appearing grayish and granular when postmature, macrocephalic, (4–)5-celled, (15.5–) 22.0 (–26.0) × (4.0–) 5.5 (–8.0) µm (n = 60). Pycnidia frequent, ±globose, partly immersed, (52–) 80 (–140) µm in diameter (n = 9), wall brown; conidia bacilliform, mostly straight, hyaline, (4–) 6.4 (–9) × ~1 µm (n = 10). Chemistry: —Thallus UV–, K–, C–, KC–, PD+ golden yellow (psoromic acid); excipular pigment K+ magenta then fading; epithecium pigment dissolving in K. AMYLOIDITY: epithecium I+ blue, K/I+ dark blue; hymenium I+ blue or turning red, K/I+ dark blue or green in high concentrations; ascus protoplasm I–, K/I+ yellow-orange; ascus wall I–, K/I–. A hemiamyloid ring in the tholus of the asci not seen. Substrate, ecology and distribution: —Found on woody palm frond bases in coastal, subtropical environments in southeastern North America (Florida to North Carolina) and the Caribbean (Bahamas). Additional specimens examined: — BAHAMAS. Cat Island. On leaf stem of thatch palm [Coccothrinax argentata], 9 July 1903, Anonymous s.n. (NCU). UNITED STATES. Florida: Collier County, off James Scenic Drive 6.5 mi NNW of Ranger Station at Gate 12 along Tram Rd, 26°0.69’N, 81°24.35’W, on palmetto leaf sheath, 02 March 2009, M.P. Nelsen 4010 (F); Orange County, Sanford, on palmetto shafts, May 1908, S. Rapp 31 (FH); North Carolina: Brunswick County, Bald Head Island State Natural Area, behind East Beach in dune swale on palmetto frond base, 20 December 2022, G.B. Perlmutter 4307 (NCU); South Carolina: Horry County, North Myrtle Beach, Hilton Hotel, behind strand on base of palmetto frond, 18 October 2010, G.B. Perlmutter 182-a (NCU).Published as part of Perlmutter, Gary B., Miranda-González, Ricardo & Bungartz, Frank, 2023, Placement of Arthonia rubrocincta in Coniocarpon (lichenized Ascomycota: Arthoniaceae), with an extended range for the species in southeastern North America and the Caribbean, pp. 278-282 in Phytotaxa 589 (3) on pages 279-280, DOI: 10.11646/phytotaxa.589.3.6, http://zenodo.org/record/777700
Placement of Arthonia rubrocincta in Coniocarpon (lichenized Ascomycota: Arthoniaceae), with an extended range for the species in southeastern North America and the Caribbean
No full textPerlmutter, Gary B., Miranda-González, Ricardo, Bungartz, Frank (2023): Placement of Arthonia rubrocincta in Coniocarpon (lichenized Ascomycota: Arthoniaceae), with an extended range for the species in southeastern North America and the Caribbean. Phytotaxa 589 (3): 278-282, DOI: 10.11646/phytotaxa.589.3.6, URL: http://dx.doi.org/10.11646/phytotaxa.589.3.
Gary Paul Nabhan
No full text"Biography and literary criticism of ecologist and author Gary Paul Nabhan (b. 1952)"--Provided by publisher
How "Chicagoan" are Gary Becker's Economic Models of Marriage?
No full textThis paper describes Gary Becker’s theoretical models of marriage. At the micro-level, these are all rational choice models. At the market level, Becker offers two major types of models: partial equilibrium models based on Price Theory as taught by Marshall and Friedman and optimal sorting models based on optimal assignment models. The paper examines some of the possible intellectual influences on Becker’s theory of marriage, compares Becker’s research on marriage with that of some scholars interested in intra-marriage distribution, and documents that Becker’s students at Chicago were more interested in Becker’s Friedmanian models of marriage than in his optimal assignment models.
The mechanism of waste treatment at low temperature
No full textSubmitted to Office of Water Resources Research, U.S. Department of Interior.OWRR project no. A-007-COLO.Pt. A. Microbiology / by S. M. Morrison, Gary C. Newton, George D. Boone, and Kirke L. Martin -- Pt. B. Sanitary engineering / by John C. Ward, John S. Hunter, Richard P. Johansen
Zoonotic potential of Giardia duodenalis and Cryptosporidium spp. and prevalence of intestinal parasites in young dogs from different populations on Prince Edward Island, Canada
No full textThe prevalence of Giardia duodenalis, Cryptosporidium spp. and other intestinal parasites was determined in dogs <1 year old from Prince Edward Island, Canada. Fecal samples were collected from the local animal shelter (n=62), private veterinary clinics (n=78) and a pet store (n=69). Intestinal parasites isolated included G. duodenalis, Cryptosporidium spp., Toxocara canis, Isospora spp. and Uncinaria stenocephala. To estimate the zoonotic risk associated with these infections, genotypes of G. duodenalis and Cryptosporidium spp. were determined using 16S rRNA and Hsp70 gene sequencing, respectively. Dogs from the pet store had the highest prevalence of intestinal parasites (78%, 95% CI: 68-88%), followed by the private veterinary clinics (49%, 95% CI: 37-60%), and the local animal shelter (34%, 95% CI: 22-46%). The majority G. duodenalis belonged to host-adapted assemblages D (47%, 95% CI: 31-64%) and C (26%, 95% CI: 13-43%), respectively. Zoonotic assemblages A and B were isolated alone or in mixed infections from 16% (95% CI: 6-31%) of G. duodenalis-positive dogs. All Cryptosporidium spp. were the host-adapted C. canis. While host-adapted, non-zoonotic G. duodenalis genotypes were more common, the presence of G. duodenalis assemblages A and B, T. canis, and U. stenocephala suggests that these dogs may present a zoonotic risk. The zoonotic risk from Cryptosporidium-infected dogs was minimal.Fabienne D. Uehlinger, Spencer J. Greenwood, J. Trenton McClure, Gary Conboy, Ryan O’Handley, Herman W. Barkem
Approaches to maintaining provenance throughout the additive manufacturing process
No full textThe development of 3D printers has resulted in significant Intellectual Property Right issues. This work presents a model for signing printable 3D objects. The paper initially reviews the security principles of signing of objects in both digital or physical form, and the metrics for assessing signatures. 3D designs are not just a file, but actual physical objects and should be treated identically, to digital documents that have associated intellectual property rights and copyright protection. In this paper we propose a signing methodology intended to resolve issues with the adaptation of rapid prototyping and 3D printing by users both in engineering and the humanities. The proposed digital signing methodology is based on physical signing principles that follow archival principles to maintain accurate records. The new model allows the transition of provenance between digital and physical form
HF scattering from ionospheric irregularities power distribution and doppler spectrum
No full textIssued as Final report, Project no. E-21-T24Final report has co-author: Gary S. SalesFinal report has title: HF scattering from ionospheric irregularities power distribution and doppler spectru
Spread spectrum communications emulator design
No full textIssued as R & D status reports [nos. 1-4], Contract funds status reports [nos. 1-8], and Final report, Project no. E-21-T12Final report has author: Gary J. SaulnierFinal report has title: Spread spectrum communications emulator desig
- …
