In 2012 and 2013 a movie book about ‘dignified end of life’ were published in the Netherlands. These items described suicide using an ‘exit bag’ to establish asphyxiation helium (the method). ‘Right-to-die-organisations’ inform elderly this method. The purpose study is investigate whether use suicidal by means method substituted other, related, methods following its publication We analysed suic...

The official statements of the European Respiratory Society (ERS) [1] and American Thoracic Society (ATS) [2] consistently recommended some corrections before adopting the measured values of alveolar helium fraction (FA,He) in the "alveolar sample" for the calculation of alveolar volume (VA). I refer to the measurement of the carbon monoxide transfer factor by the single-breath method. As the e...

Interstitial water chemistry has been widely studied to identify biological and chemical reactions in the sediment and to assess sediment-water exchange of dissolved chemical compounds (e. g. Sayles 1979; Froelich et al. 1979; Saager et al. 1990; van Raaphorst & Malschaert, 1996). However, sediment pore water sampling is tedious and requires the use of special equipment due to the possible effe...

This thesis investigates the validity of making simulations of neutral matter-wave microscope instrumentation, by modifying the well established McStas neutron ray tracing software. Specifically this thesis models the neutral helium atom microscope, NEMI, located at the University of Bergen. Two new instrument components were written in order to simulate NEMI. The new components were a source w...

Apart from the current teaching of spirometric methods in laboratory courses on respiratory physiology, we have included an experiment in which medical students determine their own residual volume by applying the indicator-dilution technique. For hygienic reasons we used a bag-in-the-box system to dilute helium within alveolar space by performing the single-breath method. Although each particip...

every year large amounts of grapes are stores in normal and cold rooms to offer off-season of grapes to the market which based on several reasons their quality and weight greatly decreases. therefore, in order to decrease the post harvest losses of grapes and selection of suitable cultivars for long time storage, this study was conducted in two experiments, one in a factorial experiment based o...

Optically pumped helium magnetometers are important instruments whichhave many applications in military, mass spectroscopy and space applications. In thispaper, the working principles of helium magnetometers have been explained. There isalso an introduction of a new method for finding the resonant frequency, which hasadvantages to the typical method such as more sample r...

Litchi is a non-climacteric fruit (Wills et al. 2004) and it deteriorates very fast after harvest. Various technologies have been devised to minimize the post-harvest losses of litchi, one of such technologies is the use of PP bag & low temperature. The objectives of the study were to evaluate the effects of thiLitchi is a non-climacteric fruit and it deteriorates very fast after harvest. Vario...