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Title: Sensors


Full Journal Title: Sensors

ISO Abbreviated Title: Sensors

JCR Abbreviated Title: Sensors

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? Carnaz, L., Batistao, M.V. and Coury, H.J.C.G. (2010), A review of direct neck measurement in occupational settings. Sensors, 10 (12), 10967-10985.

Abstract: No guidelines are available to orient researchers on the availability and applications of equipment and sensors for recording precise neck movements in occupational settings. In this study reports on direct measurements of neck movements in the workplace were reviewed. Using relevant keywords two independent reviewers searched for eligible studies in the following databases: Cinahal, Cochrane, EMBASE, Lilacs, PUBMED, MEDLINE, PEDro, Scopus and Web of Science. After applying the inclusion criteria, 13 articles on direct neck measurements in occupational settings were retrieved from among 33,666 initial titles. These studies were then methodologically evaluated according to their design characteristics, exposure and outcome assessment, and statistical analysis. The results showed that in most of the studies the three axes of neck movement (flexion-extension, lateral flexion and rotation) were not simultaneously recorded. Deficiencies in available equipment explain this flaw, demonstrating that sensors and systems need to be improved so that a true understanding of real occupational exposure can be achieved. Further studies are also needed to assess neck movement in those who perform heavy-duty work, such as nurses and electricians, since no report about such jobs was identified.

Keywords: Air-Traffic-Controllers, Analysis, Assessment, Cervical Movement, Cervical-Spine, Cochrane, Databases, Design, Direct Measurements, Exposure, Gender-Differences, Guidelines, Measurement, Medline, Motion, Movement, Movements, Musculoskeletal Disorders, Nurses, Occupational, Occupational Exposure, Outcome, Physical Workload, Portable Equipment, Posture, Pubmed, Reliability, Researchers, Review, Risk-Factors, Science, Scopus, Statistical, Web of Science, Workplace


Title: Sensors and Actuators B: Chemical


Full Journal Title: Sensors and Actuators B: Chemical

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ISSN: 0925-4005

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? Hartmann, P., Leiner, M.J.P. and Lippitsch, M.E. (1995), Response characteristics of luminescent oxygen sensors. Sensors and Actuators B: Chemical, 29 (1-3), 251-257.

Full Text: 1995\Sen Act B29, 251.pdf

Abstract: Nonlinear Stern-Volmer quenching characteristics are a common feature of oxygen sensors containing Ru(II) complexes immobilized in solid-state matrices. We discuss the origins of this behaviour and address the implications of the molecular processes on sensor performance with the help of two different sensor systems: (1) For tris(2,2’-bipyridyl)Ru(II) dichloride (Rubpy) adsorbed on silica-gel the influence of both the adsorption isotherm and heterogeneity of the indicator’s environment significantly contributes to the intensity and lifetime Stern-Volmer behaviour. A modified method to determine an average lifetime from parameters received by a multi-exponential decay analysis is employed to show that static quenching is absent in this system. (2) For tris(4,7’-diphenyl-1,10’-phenanthroline) diperchlorate (RuPh(2)phen) dissolved in polystyrene a two-component approach is shown to be adequate for the description of the intensity and mean lifetime Stern-Volmer behaviour, as well as the excited state decay. The origin of this behaviour is discussed in consideration of lifetime distributions present in disordered media. The pre-exponentially weighted mean lifetime is used to show that static quenching is also absent in this system. The importance of the thermal history of the sample is noted.

Keywords: Oxygen Sensors, Luminescence, Transfer Excited-States, Metal-Complexes, Silica-Gel, Photophysics, Photochemistry, Distributions, Surfaces

Zeng, J., Almadidy, A., Watterson, J. and Krull, U.J. (2003), Interfacial hybridization kinetics of oligonucleotides immobilized onto fused silica surfaces. Sensors and Actuators B: Chemical, 90 (1-3), 68-75.

Full Text: S\Sen Act B90, 68.pdf

Abstract: Fused silica optical fibers have been used in an intrinsic mode optical configuration as biosensors for fluorescence based detection of hybridization of nucleic acids. In this work, the kinetics of hybridization of single-stranded oligonucleotides that were covalently immobilized were studied. The probe DNA was dT20, and the target was Fluorescein-labeled non-complementary (dT20) or complementary (dA20) oligonucleotide. Chronofluorimetric monitoring of the adsorption and hybridization processes was used to investigate oligonucleotide films of different density, in different salt concentrations, at temperatures of 25 and 40 °C, with the concentration of the target DNA being 0.005–0.1 M. Mathematical models based on first- and second-order Langmuir adsorption have been examined to describe both the adsorption and the hybridization processes. Experimental data were processed using the models, and the hybridization kinetics were calculated. Hybridization kinetics on these optical fiber DNA sensors was found to be up to three orders faster than results presented for a number of other experiments using different immobilization chemistries.

Keywords: Biosensor, DNA, Fluorescence, Hybridization, Kinetics, Optical Fiber

Title: Seoul Journal of Medicine


Full Journal Title: Seoul Journal of Medicine

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? Lee, C.S., Yoon, B.J. and Chi, J.G. (1994), Publication output and growth of Korean medical papers published in science citation index journals during the 1980s: A comparison with SCI Korean chemistry papers. Seoul Journal of Medicine, 35 (3), 137-154.




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