Elizabeth Schubert

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The effect of low root medium pH on growth and proton release of field beans (Vicia faba L. cv. Kristall) was studied in soil and nutrient solution experiments. Decrease of soil pH due to proton release by roots strongly depended on the proton buffer capacity of 8 different soil types tested in a pot experiment. Whereas in soils of high proton buffer(More)
The influence of different oxygen content in the inhaled air was examined in 21 healthy male volunteers using noninvasive methods. Tidal volume, breathing frequency, minute ventilation, heart period duration, stroke volume factor, cardiac output factor, arterial blood pressure, and total peripheral resistance factor were measured. It is shown that the(More)
This study aims to explore the feeding practices in families of working and nonworking mothers with children (aged 12-36 months) of different nutritional status and types of domestic caregiver in Indonesian urban middle class families. It was designed as a qualitative multiple case study. Mothers and caregivers from 26 families were interviewed in depth,(More)
The blocking of the creatinphosphokinase by 1-fluoro-2,4-dinitrobenzene (FDNB) allows to investigate the relationship between ATP-supply, contractility and relaxability of the frog's myocardium. In isotonically working isolated ventricles of frogs the time of work, systolic and diastolic volume, velocity of contraction and relaxation as well as the levels(More)
The double-burden problem of malnutrition in many developing countries is occurring against a backdrop of complex changes in the socio-economic and cultural environment. One such change is the increasing rate of female employment, a change that has attracted researchers to explore the possible relationships between maternal employment and child nutritional(More)
The effects of concurrent disopyramide phosphate and quinidine sulfate therapy were studied in 16 normal healthy adults. No adverse effects serious enough to warrant discontinuation of therapy were observed. There was a small but significant increase in disopyramide serum concentration when concurrent quinidine therapy was given and a small decrease in(More)