8,127 research outputs found
Pygolabis humphreysi Wilson
No full textPygolabis humphreysi Wilson (Figs 3, 4 A–B) Pygolabis humphreysi Wilson, 2003: 245, figs 1–7. Material examined. Western Australia: Pilbara Region: Newman Borefield: male, bore W157, 23°13.0'S 119 °54.0'E, fld. no. BES 3534, 11 xi 1998 (S. Eberhard) (WAM C 34940); male (illustrated), body length 8.9 mm, bore W78, 23° 19.75 'S 119 ° 51.25 'E, fld. no. BES 4833 haul net, 23 vii 1997 (W.F. Humphreys, S.M. Eberhard) (WAM C 34941); male, bore W 23 4 south west of ore body 23 Fortescue River catchment, 23 ° 19.03 'S 119 ° 51.02 'E, fld. no. PSS 002, 10 iv 2003 (J.S. Cocking, S.A. Halse) (AM P 70401); 2 females, male, body length 8.8mm, bore W 260 at Production Bore K 31 Fortescue River catchment, 23 ° 17.51 'S 119 ° 52.2 'E, fld. no. PSS 003, 13 x 2004 (H.J. Barron, J.S. Cocking) (AM P 70402); 2 males, 1 female, bore W 28 Great Northern Highway near Newman Airport, 23 ° 24.20 'S 119 ° 47.76 'E, depth to water 5 m, depth to bottom 8 m, fld. no. PSS 005, 10 iv 2003 (J.S. Cocking, A.E. MacIntosh) (AM P 70403, slide STY 002). Diagnosis. Pleotelson. Distance between uropod insertions and apex subequal to half length of pleotelson, lateral inflection points of posterior margin midway between uropod insertions and apex (or closer to apex than to uropod insertions); apex posterior margin indentation absent. Pleopod 2 male endopod appendix masculina. Teeth on lateral margin barely projecting from lateral margin, separated by less than tooth width for more than half of lateral margin length, proximal teeth subequal to lateral teeth in middle of ridge, lateral margin forming smoothly rounded arc; distal tip with broad (width greater than proximal groove width) cup, medial distal margin rounded. Uropods. Protopod extending beyond pleotelson apex. Remarks. Wilson (2003) mentioned that this species showed variation in the form of the pleotelson apical projection, with the projection length apparently correlated with body length–larger specimens had larger projections. In Figure 3, we show a specimen with the short pleotelson projection. We have observed no consistent features that would suggest that this species might contain two distinct taxa. Distribution. Newman Borefield and surroundings, 23 ° 17–24 'S 119 ° 48–53 'E, Pilbara Region, Western Australia.Published as part of Keable, Stephen J. & Wilson, George D. F., 2006, New species of Pygolabis Wilson, 2003 (Isopoda, Tainisopidae, Crustacea) from Western Australia, pp. 1-27 in Zootaxa 1116 on page 7, DOI: 10.5281/zenodo.17162
Travels in Mesopotamia including a journey from Aleppo to Bagdad, by the route of Beer, Orfah, Diarbekr, Mardin, and Mousul; with researches on the Ruins of Nineveh, Babylon, and other ancient cities. By J.S. Buckingham, author of Travels in Palestine an
No full textPreface: By Buckingham, J.S.Appendix.Dedication: by the author to Lady Hester Lucy StanhopeContent description: TitleIllustration: 14 (Views ,varia ,)Pagination: pp20+479p, pp4+538pVolumes: 2Text Genre:ProseIllustration: 14 (τοπία ,άλλα θέματα ,
Wilson, John Fredrick (Birth, 1896-08-18)
No full textAddress: 623 W. 6th St.4403/Pg.101/1896/M W/Ky./Cinti, Ohio/Dr. J.S. CaldwellOriginal record filed in drawer labeled 'WILSON-WINMIL'
A Validated Framework for Measuring Interface Support for Interactive Information Seeking
No full textIn this paper we present the validation of an evaluation framework that models the support provided by search systems for different types of user and their expected types of seeking behavior. Factors determining the types of users include previous knowledge and goals. After an overview is presented, the framework is validated in two ways. First, the novel integration of the two existing information-seeking models used in the framework is validated by the correlation of multiple expert and novice analysis. Second, the framework is validated against the results produced by two separated user studies. Further, the refinements made by the first validation technique are shown to increase the accuracy of the framework through the second technique. The successful validation process has shown that the framework can identify both strong and weak areas of search interface design in only a few hours. The results produced can be used to either revise and strengthen designs or inform the structure of a user study
Detection of glucose via electrochemiluminescence in a thin-layer cell with a planar optical waveguide
No full textLight generated by luminol electrochemiluminescence is coupled into a simple planar optical waveguide and is collected with a photomultiplier tube and a photon counter unit. The waveguide is mounted to a thin-layer cell which is connected to a flow injection analysis system. The waveguide is coated with indium tin oxide and modified with covalently attached glucose oxidase. The range of detection for glucose is 0-10 mM (correlation coefficient r = 0.9974), with a detection limit of 0.3 mM
Optoelectrochemical sensor for lead based on electrochemically-assisted solvent extraction
No full textA thin film containing the complexing agent 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol (BrPADAP) deposited on the surface of an indium tin oxide (ITO) electrode has been used as a colorimetric sensor for lead. The sensor is based on a new electrochemically assisted solvent extraction method. When a cathodic potential was applied to the thin-film sensing layer, lead ions were extracted from the aqueous solution into the film resulting in an increase of absorbance at 550 nm. The magnitude of the absorbance change was linearly dependent on the concentration of lead in the range 0–5 ppm with an estimated limit of detection for a simple spectrophotometric method better than 250 ppb. The sensor was reset for a fresh measurement by applying an anodic potential. The prospects for using this electroassisted extraction method in conjunction with the optical waveguide evanescent field detection as a new integrated sensor for trace analysis are discussed. A sensitivity better than 10 ppb is predicted for this configuration
Waveguide surface plasmon resonance biosensor for the aqueous environment
No full textWe report the fabrication and performance of gold coated waveguide surface plasmon resonance biosensors. Biotin-avidin binding reactions at the sensor surface were observed. The output power of the sensor showed a decrease of 32% on binding a dual layer of biotin-avidin
Study of luminol electrochemiluminescence with a planar optical waveguide for peroxide sensor application
No full textThe work presented in this paper is aiming at the development of a highly sensitive, specific, cheap and widely applicable new sensor based on the combination of optical and electrochemical techniques. In addition to the analytically valuable information of light intensity generated, the light transient resulting from a double potential step experiment contains kinetic information for both the electrochemical step as well as for the successive diffusion and chemical steps in the reaction layer. The comparison of transients due to short range waveguide-evanescent field coupling as shown in Fig. 2 and those obtained by measuring light over the full depth of the diffusion layer in Fig. 3 can be used to obtain such information
Usage notes and labelling practicies in J.S. Bandtkie’s dictionary – types, functions and frequency
No full textUsage notes and labelling practicies in J.S. Bandtkie’s dictionary – types,functions and frequency. The present text discusses the issues related to the phenomenon that is enormously important for the study of historical lexicography, namely the issue of usage notes and labelling practices used in dictionaries. The author focuses on the types of stylistic and context markers used in the dictionary compiled by J.S. Bandtkie, their differentiation and estimated frequency of application (frequency of occurrence of given markers against others), and the consistency in the application of specific solutions by the author of the dictionary. Special attention is given to some of the aspects of the use of grammatical information in J.S. Bandtkie’s work and to the consistency in using given
adopted solutions. The article also includes some general remarks on the scientific
merit of the dictionary, one of the most extensive, as far as the lexical resources are concerned, historical dictionaries of the Polish language
Integrated optical directional coupler biosensor
No full textWe present measurements on biomolecular binding reactions, using a new type of integrated optical biosensor based on a planar directional coupler structure. The device is fabricated by Ag+-Na+ ion-exchange in glass and definition of the sensing region is achieved by use of transparent fluoropolymer isolation layers formed by thermal evaporation. The suitability of the sensor for application to the detection of environmental pollutants is considered
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