Results 231 to 240 of about 19,078 (245)
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O31: Comprehensive non-MS drug screening by UPLC-PDA-CAD with durable quantitative calibration

Toxicologie Analytique et Clinique, 2014
Introduction Mass spectrometric (MS) methods are today widely used in analytical toxicology, but in comprehensive quantitative drug screening it is laborious to maintain quantitative calibration and use of historic calibration is not feasible. In non-MS gas chromatographic (GC) and liquid chromatographic (LC) methods, historic calibration is widely ...
J. Viinamäki, I. Ojanperä
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MPEC 2024-O31 : 2017 DQ171

The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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MPEC 2025-O31 : 2025 NA2

The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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O31-5 Collective power of employees, and its association with health outcomes in taiwan

Oral Session 31 – Psychosocial Factors 2, 2016
Background Worker participation allows employees to exercise control over their work conditions and enhances the efficiency of occupational safety and health management in the workplace. It is common for individual employees to participate through collective power, such as by organising a labour union.
Heng-Hao Chang, Yawen Cheng
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O31

Journal of Nutrition Education and Behavior, 2007
Linda Neuhauser   +2 more
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O31. Comparison of thyroid image quality for pinhole and parallel hole collimators: A phantom study

Physica Medica, 2016
Introduction Developing countries often have limited funds and thus diagnostic and treatment modalities should be operated in a cost effective manner while maintaining proper patient care. Gamma camera collimators are acquired at additional cost and the pinhole collimator is often more expensive than the more commonly used Low-energy-high-resolution ...
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