170,274 research outputs found
Comparison of routine oxygen consumption rates of three species of pleuronectids conducted at three temperatures
No full textThe oxygen consumption of 3 species of pleuronectids, the yellowtail flounder, Pleuronectes ferruginea, the winter flounder, P. americanus, and the American plaice, Hippoglossoides platessoides, were studied under simulated, land-based aquaculture conditions. Routine oxygen consumption (ROC) rates for groups of each species were measured simultaneously using single pass flow-through respirometry. The initial comparison of these species indicated significant differences in routine oxygen consumption among species. The measurements were repeated at 2 degrees C, 11 degrees and 14 degrees . The ROC rates of yellowtail and winter flounders differed significantly at each temperature. ROC rates of American plaice were significantly different at 14 degrees C compared with the other 2 temperatures..CF: Aquaculture Canada '96 - 13th Annual meeting of the Aquaculture Association of Canada, Ottawa, Canada, 2-5 June 1996.; RE: 9 ref.; SC: ZA; CA; BE; ZE; 0NSource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0840-5417&isbn=&volume=96-3&issue=%203&spage=18&pages=18-20&date=1996&title=Bulletin%20of%20the%20Aquaculture%20Association%20of%20Canada&atitle=Comparison%20of%20routine%20oxygen%20consumption%20rates%20of%20three%20species%20of%20pleuronectids%20conducted%20at%20three%20temperatures.&aulast=MacIsaac&pid=%3Cauthor%3EMacIsaac%2c%20P%20F%3bGoff%2c%20G%20P%3bSpeare%2c%20D%20J%3C%2Fauthor%3E%3CAN%3E19981402196%3C%2FAN%3E%3CDT%3EConference%20paper%3bJournal%20article%3C%2FDT%3
Prognostic accuracy of SIRS, SOFA and qSOFA in the ICU
No full textEamon Raith, Andrew Udy, Michael Bailey, Steven McGloughlin, Christopher MacIsaac, Rinaldo Bellomo, David Pilche
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Organic contaminants in lower Great Lakes' waterfowl in relation to diet, with particular reference to Dreissena polymorpha.
No full textSix species of waterfowl including greater scaup (Aythya marila), lesser scaup (Aythya affinis), bufflehead (Bucephala albeola), canvasback (Aythya valisineria), mallard (Anas platyrhynchos), and redhead (Aythya americana) were collected and analyzed for diet content, organic contaminant patterns (pesticides and polychlorinated biphenyls (PCBs)), and stable isotope (\sp{14}C and \sp{15}N) signatures from 3 sites in the lower Great Lakes (Fighting Island, western Lake Erie, and Big Creek). Lesser and greater scaup from Fighting Island were classified into groups according to the percentage dry mass of zebra mussel (Dreissena polymorpha) in the diet. Lesser and greater scaup classified as Dreissena-consumers had, on average, 85 and 67%, respectively, zebra mussel diet content as compared to 6 and 3% for individuals classified as macrophyte-consumers. Stable isotope analyses revealed that 'Dreissena-consumer' lesser and greater scaup were enriched 2.9\perthous and 2.4\perthous in \sp{15}N relative to 'macrophyte-consumer' conspecifics. As well, these 'mussel-consumer' waterfowl had 2.6\perthous and 2.3\perthous higher \sp{15}N levels relative to Dreissena, their principal prey. Using chemical octanol-water partition coefficients (K\rm\sb{ow}) a representative group of low-(pentachlorobenzene (QCB), polychlorinated biphenyl (PCB) # 28), mid-(PCBs # 105, 153) and high-(PCBs # 194, 206) K\rm\sb{ow} compounds were examined in liver tissues for each group of waterfowl. Results revealed significant differences with respect to diet for high-K\rm\sb{ow} compounds, though differences among species were insignificant. In each case, mussel-consumers had elevated concentrations of these compounds relative to individuals that avoided Dreissena. (Abstract shortened by UMI.)Dept. of Biological Sciences. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1995 .M39. Source: Masters Abstracts International, Volume: 34-06, page: 2297. Adviser: Hugh J. MacIsaac. Thesis (M.Sc.)--University of Windsor (Canada), 1995
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Telopathes Macisaac, Best, Brugler, Kenchington, Anstey & Jordan, 2013, gen. nov.
No full textTelopathes gen. nov. MacIsaac & Best, 2013 Diagnosis. Observed attached to the side of a vertical cliff by a large, flat, adhesive, circular base. Corallum sparsely branched to the second order, branching not restricted to one plane, with branches directed distally. Stem and branches pinnulate. All pinnules simple, directed distally at an angle from the axis of the branch, in two anterolateral rows, arranged in either subopposite or alternate order. Pinnules long, maximum size estimated at up to 30 cm, the longest found on the stem and primary branches, with pinnules decreasing notably in length at branch tips. Spines are simple, conical, smooth, and compressed laterally. Polyps are elongate and arranged uniserially on branches and pinnules, and are comprised of three distinct sections separated by deep involutions. Preserved polyps range from 4.0– 7.1 mm in transverse diameter. Type species. Telopathes magna MacIsaac & Best 2013 herein designated. Remarks. The genus is distinguished by the sparsely branched corallum, with branching not restricted to one plane (Fig. 2 A–F), the long, simple, anterolateral pinnules in two rows (Fig. 3 A–F), largely pinnulated stem, and adhesive base. Although only one fragment of the holotype colony was collected, diagnostic features observed between the fragment and in situ video and photographs define the monospecific genus Telopathes gen. nov. as new for the family Schizopathidae. It is possible that additional features diagnostic for the species are not reported because the entire colony was not collected. Species descriptions of antipatharians based solely on fragments exist, including the recent example of Dendrobathypathes boutillieri. In the past some such descriptions have proven incomplete and historically contributed to taxonomic confusion (Molodtsova 2006), but the description of Telopathes also includes information on the entire colony from in situ video and photographs, and includes several paratypes. The molecular data presented should also mitigate any issues surrounding the identification of additional specimens of T. magna, which may include unobserved or otherwise novel morphological features. The description and occurrence of T. magna brings the number of new genera added to family Schizopathidae over the past decade to three (Opresko 2002, 2005) and the number of nominal species of Antipatharia reported to occur off eastern Canada to at least 12. Species assigned to Telopathes . One species: T. magna MacIsaac & Best, 2013 Etymology. Derived from the Latin telum (dart), in reference to the shaft and flights of a dart and the general shape of the corallum, and the commonly used suffix pathes. Distribution. One species of this genus is known, from the western North Atlantic. Telopathes magna new species (Figs. 2–7) Holotype. NSMC 17671, Western North Atlantic, Nova Scotia continental slope, near the mouth of the Laurentian Channel, 44.428098 N, 57.173328 W, depth 1073 m. Video, high resolution photographs, and a 16.7 cm fragment collected by ROPOS, Dive 1063, aboard CCGS Hudson, mission 2007 -025. Fragment initially fixed in formaldehyde, transferred to ethanol; subsamples preserved in ethanol for molecular analysis. Holotype with subsamples archived in the Nova Scotia Museum Collection, Halifax, Nova Scotia, Canada. Other material. Paratype YPM- 35975: R/V Delaware II, cruise DE 02-06, July 16 –August 2, 2002, New England Seamounts (NES), Bear Seamount (Smnt), 39.88333 N, 67.46666 W, 1195–1402 m (one specimen trawled). Paratype BAL 103 - 1: R/V Ronald H. Brown and IFE ROVs Argus and Hercules, cruise RB 04-04, May 9 – 24, 2004, NES, Balanus Smnt, 39.35608 N, 65.35958 W, 1865 m (one specimen). Paratype YPM- 35498: cruise RB04-04, NES, Retriever Smnt, 39.80965 N, 66.24922 W, 1983 m (one specimen). Paratype MIL 112 - 1: R/V Ronald H. Brown and IFE ROVs Argus and Hercules, cruise RB 05-03, August 10 – September 3, 2005, Corner Rise Seamounts, Caloosahatchee Smnt, Milne-Edwards Peak, 34.8123 N, 50.5038 W, 1310 m (one specimen, small/juvenile). Paratype REH 103 - 1: cruise RB05-03, NES, Rehoboth Smnt, 37.46066 N, 59.95133 W, 1909 m (one specimen). Diagnosis. Stem largely pinnulate, colony sparsely branched to the second order, primary branches not restricted to one plane, branches directed distally and curving outward. Pinnules arranged in two anterolateral rows, in alternate or subopposite arrangement, but occasionally with two pinnules in a row on one side. Internal angle of approximately 70 º between opposite pairs of pinnules on the primary branch collected. Pinnules directed distally at an angle from the axis of the branch. Pinnules long, up to approximately 30 cm on the stem, 18 cm on primary branches, and 9 cm on secondary branches, decreasing notably in length near branch tips. Primary branch has an average 2.8 pinnules per cm, spaced 0.8 –1.0 cm apart in each row. Secondary branches have 2–3 pinnules per cm, spaced 0.7–0.8 cm apart in each row. Proximal sections on both secondary branches without pinnules, or very sparsely pinnulated. Primary branch sparsely populated with polyps, with some spaces between pinnules devoid of polyps. In contrast, secondary branches have 1–2 polyps between pinnules. Polyps arranged uniserially, with densities of 0–1 polyps per cm on the primary branches, and 1–2 polyps per cm on the secondary branches and pinnules. Polyps are 4.0– 7.1 mm in transverse diameter on the fragment. Skeletal spines simple, smooth, compressed laterally, conical or sometimes curved, in which case they are generally directed proximally (Fig. 5 A– C, Fig. 7 A–C). Spines are 0.019–0.068 mm tall; 0.012–0.041 mm in transverse diameter at their base. Spines on the polypar sides of the pinnules are slightly larger than on the abpolypar side: 0.029–0.068 mm and 0.019–0.061 mm, respectively. This characteristic is difficult to observe with a dissecting scope, though the discrepancy is more pronounced in the juvenile specimen (Fig. 7 C). Number of spines in each row 2–6 per mm. Description of the holotype. Telopathes magna spec. nov. was observed attached to a vertical cliff with a prominent stem and large, circular basal plate approaching 30 cm in diameter (Fig. 2 A–F). Orientation of the colony horizontal in the water, at a right angle to the vertical substrate. The type specimen is described from photos, video, and a fragment of one primary branch 16.7 cm in length, 36.0 cm wide. Fragment bearing two secondary branches 18.6 and 20.0 cm in length, 18.9 and 17.0 cm in width respectively (Fig. 3 A–B). Total colony size large, estimated at over 80 cm tall, greatest width approximately 85 cm. Stem mostly pinnulate, proximal few centimetres sparsely pinnulated or lacking pinnules. Stem thick near base, with an estimated basal stem diameter approaching 1 cm. Corallum branched to the second order, the longest branch approximately 39 cm long. Branches not restricted to one plane, directed distally. Pinnules long, 9–30 cm, shortening near branch tips, in two anterolateral rows, forming an acute angle between opposite pairs (Fig. 3 E). Pinnules directed distally. Branches more rigid while pinnules more flexible. One abnormally recurved pinnule observed in proximity to a deformed or bent secondary branch (Fig. 3 C–D), possibly indicating earlier damage to the colony. Living colony with bright orange polyps, tissue covering stem and branches more yellowish (Fig. 2 & 3). After preservation polyps brown, tissue lighter on the stems and branches. Tentacles long in living colony, up to an estimated 1 cm or more (Fig. 3 F), shorter after preservation. Polyps after preservation up to 7.1 mm in transverse diameter (Fig. 4 A–C). Skeletal spine morphology as described above, seven to nine longitudinal rows visible on pinnules in lateral view (Fig. 5 A–B), six to seven rows on branches. Rows on pinnules separated by 0.047–0.157 mm, spines within each row an average of 0.395 mm apart, not always uniformly spaced; occasionally sections in rows lack spines completely (indicated in Fig. 5 A), particularly in the distal sections. Occasionally spines are paired (Fig. 5 C)—a characteristic observed only on the pinnules, not on primary branches examined. Description of the Paratypes. Specimens from New England Seamounts similar morphologically to each other and holotype, but not identical, with branching to the first and second order in more than one plane (Fig. 6 A– D). All paratypes with relatively smaller basal plates compared to holotype, and basal plate not concentric on one large colony, indicating some intraspecific variation in this character, possibly due to the nature of the substrate on which the planula settles. Colony from Rehoboth Seamount (Fig. 6 D) appears to be the largest observed based on lasers on in-situ photographs, with conservative estimates of maximum height and width of approximately 133 cm and 150 cm respectively. The largest pinnules were estimated to be slightly smaller than the holotype at 24 cm in length. Colony branching was more dense than in smaller and probably younger colonies. Skeletal spines on pinnules collected from paratypes similar but not identical to holotype, are small and conical, with a size ranging from 0.019 mm (Rehoboth Seamount specimen) to 0.065 mm (Retriever Seamount specimen); smaller than those observed in the holotype. Distribution of spine sizes measured reveals a typically small difference between polypar and abpolypar sides. FIGURE 4. Polyps of Telopathes magna. (A–C) Arrangement of polyps along a pinnule; M = Mouth, ST = Sagittal tentacle, LT = Lateral tentacle. (A) Oral view. (B) Side view; P 1 & P 2 = individual polyps. (C) Close-up view of a typical polyp. (D) Arrangement of polyps along the primary branch. Scale 0.5 cm. The juvenile/small colony from Milne-Edwards Peak (Fig. 6 B–C) measured 27 cm in length, 13 cm in width, with the largest pinnule 7 cm in length. This specimen superficially resembles the genus Bathypathes. Primary pinnules large and simple, but are deflected anteriorly from the lateral plane. With one primary branch off main stem, this is distinguished by limited pinnulation and/or secondary branching. Skeletal spines on pinnules similar but not identical to holotype, small and conical, with a size ranging from 0.037–0.056 mm (Fig. 7 C). Distribution of spine sizes distinctly different on the juvenile colony, with notably larger spines on the polypar side, a range of 0.048–0.062 mm, and smaller spines on the abpolypar side, 0.037–0.047 mm with a mean of 0.048 mm (Fig. 7 C). All paratypes indistinguishable genetically from each other and the holotype. Comparisons. Telopathes appears morphologically most similar to the monopodial genus Bathypathes, especially smaller colonies, both possessing very long, simple pinnules in two rows, arranged in alternate or subopposite order. The polyps of both Telopathes and Bathypathes are large, the only two genera of Schizopathidae with polyps that may be in excess of 6 mm (Table 2). Differences include the branched corallum of Telopathes, though this branching may be slight, and the pinnules deflected from the lateral, observable even in the small colony (Fig 7 B–C). Schizopathes and Abyssopathes also possess large polyps and long, simple pinnules in two rows, but like Bathypathes, both are monopodial. In Schizopathes the pinnules are also lateral, not deflected, and the colony anchors in soft sediments, lacking a basal plate. Abyssopathes may have pinnules deflected from the lateral axis, like Telopathes, but also possesses the curious schizopathinid feature of one or more rows of anterior pinnules. Stauropathes is another large polyp genus, but the pinnules are short, and may be densely branched. The largest colony of Telopathes from Rehoboth Seamount was more densely branched than small and medium sized colonies observed, more similar to Stauropathes in this regard. It is possible that even larger/older colonies of Telopathes may be more densely branched, more closely resembling Stauropathes. All other genera of Schizopathidae belong to the subfamily Parantipathinae, with complex patterns of pinnulation (some combination of subpinnulation and/ or additional rows of pinnules beyond two), and small polyps typically less than 3 mm in diameter. Etymology. The specific name is derived from the Latin magnus (large), referring to the relatively large pinnules. Distribution. Known from the western North Atlantic, continental slope off Nova Scotia, New England Seamounts and Corner Rise Seamounts. At a depth of 1073 m on the continental slope to 1983 m on the seamounts (shallowest depth on seamounts 1195–1402 m).Published as part of Macisaac, K. G., Best, M., Brugler, M. R., Kenchington, E. L. R., Anstey, L. J. & Jordan, T., 2013, Telopathes magna gen. nov., spec. nov. (Cnidaria: Anthozoa: Antipatharia: Schizopathidae) from deep waters off Atlantic Canada and the first molecular phylogeny of the deep-sea family Schizopathidae, pp. 237-258 in Zootaxa 3700 (2) on pages 243-250, DOI: 10.11646/zootaxa.3700.2.3, http://zenodo.org/record/22324
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
Relationship between urinary sodium excretion over time and mortality in type 2 diabetes
No full textPrior Presentation. This study was presented in abstract form at the 73rd Scientific Sessions of the American Diabetes Association, Chicago, IL, 21–25 June 2013.Elif I. Ekinci, John L. Moran, Merlin C. Thomas, Karey Cheong, Sophie Clarke, Angela Chen, Matt Dobson, Amanda Leong, Richard J. MacIsaac, and George Jerum
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
A 0.12mm<sup>2</sup> Wien-Bridge Temperature Sensor with 0.1°C (3σ) Inaccuracy from -40°C to 180°C
No full text Resistor-based temperature sensors can achieve much higher resolution and energy efficiency than conventional BJT-based sensors [1], but they typically occupy more area (> 0.25 mm 2 ) and have lower operating temperatures (le 125 {circ} {C}) [2]-[4]. This work describes a 0.12mm 2 resistor-based sensor that uses a Wien-bridge (WB) filter to achieve 0.1 {circ} {C} (3 sigma) inaccuracy from - 40 {circ} {C} to 180 {circ} {C}. Compared to a state-of-the-art WB sensor [4], it occupies 6 × less area and achieves comparable relative accuracy over a 76% wider operating range. Session 10.3 Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic InstrumentationMicroelectronic
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