Search Results - "BUTCHER, P"

Evaluating View Management for Situated Visualization in Web‐based Handheld AR by Batch, A., Shin, S., Liu, J., Butcher, P. W. S., Ritsos, P. D., Elmqvist, N.

“…As visualization makes the leap to mobile and situated settings, where data is increasingly integrated with the physical world using mixed reality, there is a…”
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Determination of nitrofuran and chloramphenicol residues by high resolution mass spectrometry versus tandem quadrupole mass spectrometry by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…[Display omitted] •A comprehensive nitrofuran multi-residue method is proposed.•Q-HRMS and QqQ based detection was compared.•HRMS provides comparable or better…”
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Does the ion mobility resolving power as provided by commercially available ion mobility quadrupole time-of-flight mass spectrometry instruments permit the unambiguous identification of small molecules in complex matrices? by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…Quadrupole based mass spectrometry based detection has experienced enormous improvements in terms of sensitivity over the last centuries. This development has…”
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Determination of aminoglycoside residues by liquid chromatography and tandem mass spectrometry in a variety of matrices by Kaufmann, A., Butcher, P., Maden, K.

“…[Display omitted] ► We are reporting a quantitative multi-residue method for aminoglycoside antibiotics. ► The use of a strong cation exchanger step…”
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Comprehensive comparison of liquid chromatography selectivity as provided by two types of liquid chromatography detectors (high resolution mass spectrometry and tandem mass spectrometry): “Where is the crossover point?” by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…The selectivity of mass traces obtained by monitoring liquid chromatography coupled to high resolution mass spectrometry (LC-HRMS) and liquid chromatography…”
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Improved method robustness and ruggedness in liquid chromatography–mass spectrometry by increasing the acid content of the mobile phase by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M., Kaempf, R.

“…•Importance of sufficient ionic strength (buffer capacity) of LC–MS mobile phases.•Improving chromatographic peak shape of ionic analytes.•Analyte response as…”
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Development of an improved high resolution mass spectrometry based multi-residue method for veterinary drugs in various food matrices by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…Multi-residue methods for veterinary drugs or pesticides in food are increasingly often based on ultra performance liquid chromatography (UPLC) coupled to high…”
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Environmental drivers of abundance and residency of a large migratory shark, Carcharhinus leucas, inshore of a dynamic western boundary current by Lee, K. A., Smoothey, A. F., Harcourt, R. G., Roughan, M., Butcher, P. A., Peddemors, V. M.

“…Understanding the environmental drivers of movement of potentially dangerous shark species can help inform mitigation strategies. Bull sharks are known to…”
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High-resolution mass spectrometry–based multi-residue method covering relevant steroids, stilbenes and resorcylic acid lactones in a variety of animal-based matrices by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…A new, relatively simple sample processing and detection workflow has been developed for the quantification and confirmation of banned growth-promoting…”
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Multi-residue quantification of veterinary drugs in milk with a novel extraction and cleanup technique: Salting out supported liquid extraction (SOSLE) by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…[Display omitted] •We are describing a novel liquid/liquid extraction technique.•The technique can extract compounds of widely different polarities.•Recovery…”
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Nitrate reduction pathways on Cu single crystal surfaces: Effect of oxide and Cl by Butcher, Dennis P., Gewirth, Andrew A.

“…The origin of different nitrate reduction activity between the (100), (111), and (110) faces of Cu is examined using vibrational spectroscopy and calculations…”
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Optimized multimatrix calibration concept for liquid chromatography mass spectrometry-based bioanalysis methods by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…•Multi-matrix bioanalysis calibration concept is proposed.•Concept is compared against conventional strategies.•Comparable or better accuracy is obtained.•Less…”
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Reliability of veterinary drug residue confirmation: High resolution mass spectrometry versus tandem mass spectrometry by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…[Display omitted] •A HRMS based confirmation criteria for residue analysis is proposed.•The criteria was comprehensively compared to existing criteria.•Less…”
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Multiple Views: different meanings and collocated words by Roberts, J. C., Al‐maneea, H., Butcher, P. W. S., Lew, R., Rees, G., Sharma, N., Frankenberg‐Garcia, A.

“…We report on an in‐depth corpus linguistic study on ‘multiple views’ terminology and word collocation. We take a broad interpretation of these terms, and…”
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Influence of periodontal disease, Porphyromonas gingivalis and cigarette smoking on systemic anti-citrullinated peptide antibody titres by Lappin, David F., Apatzidou, Danae, Quirke, Anne-Marie, Oliver-Bell, Jessica, Butcher, John P., Kinane, Denis F., Riggio, Marcello P., Venables, Patrick, McInnes, Iain B., Culshaw, Shauna

“…Background Anti‐citrullinated protein antibody (ACPA) responses may precede clinical onset of rheumatoid arthritis. Porphyromonas gingivalis peptidylarginine…”
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Determining effective acoustic array design for monitoring presence of white sharks Carcharodon carcharias in nearshore habitats by Gabriel, Sofia M., Patterson, T. A., Eveson, J. P., Semmens, J. M., Harasti, D., Butcher, P. A., Spaet, J. L. Y., Bradford, R. W.

“…Inferences regarding animal presence from passive acoustic receiver arrays are driven by the spatial configuration of receivers. Large, dense arrays provide…”
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Quantification of anthelmintic drug residues in milk and muscle tissues by liquid chromatography coupled to Orbitrap and liquid chromatography coupled to tandem mass spectrometry by Kaufmann, A., Butcher, P., Maden, K., Walker, S., Widmer, M.

“…A simple method for the determination of some anthelmintic drugs and phenylbutazone residues in milk and muscle was developed. Following a fast and easy…”
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Clostridium difficile in ready-to-eat salads, Scotland by Bakri, Marwah M, Brown, Derek J, Butcher, John P, Sutherland, Alistair D

“…Of 40 ready-to-eat salads, 3 (7.5%) were positive for Clostridium difficile by PCR. Two isolates were PCR ribotype 017 (toxin A-, B+), and 1 was PCR ribotype…”
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Prevalence and clinical correlations of genetic subtypes of Giardia lamblia in an urban setting by BREATHNACH, A. S., McHUGH, T. D., BUTCHER, P. D.

“…The clinical significance of different genetic subtypes or assemblages of Giardia lamblia is uncertain. Cases of giardiasis in south-west London between 1999…”
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Parenting stress in mothers and fathers of a child with a hemiparesis: sources of stress, intervening factors and long-term expressions of stress by Butcher, P. R., Wind, T., Bouma, A.

“…Background  In a substantial minority of children with a hemiparesis, motor impairments are accompanied by behavioural problems. This combination confronts…”
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