Household food security and dietary diversity in different agro-ecological zones in Western Kenya

Poster presented at Tropentag 2014. International Conference on Research on Food Security, Natural Resource Management and Rural Development. "Bridging the Gap between Increasing Knowledge and Decreasing Resources" Prague (Czech Republic) Sep 17-19 2014

Nutritional status, dietary diversity and morbidity among infants and children aged 6-23 months in rural Western Kenya

Poster presented at International Congress Of Tropical Paediatrics 2014. Nairobi (Kenya), 24-27 Aug 201

Improved high-precision GNSS navigation with a passive hydrogen maser

Receiver clock modeling (RCM) based on code observations requires a chip-scale atomic clock to improve the PVT solution. When using carrier phase observations, a more stable oscillator like a passive hydrogen maser (PHM) is necessary. We applied a PHM in an automotive experiment of about 80 minutes in an urban environment recording 10 Hz multi-GNSS data. Modeling the clock process noise in a linearized Kalman filter according to the spectral behavior of the PHM (i.e., RCM), improves position and velocity regarding precision and accuracy by 15% and 57%, respectively, as well as reliability by 30%. In situations with sparse, geometrically unfavorable observations, RCM prevents large position drifts. The convergence time of the carrier phase ambiguities is not affected. Conclusively, precision, accuracy, and reliability in kinematic precise point positioning can be improved by using an oscillator like a PHM. Future advancements in clock technology should make this approach more feasible for ordinary use cases

Wird Import-Bio jetzt sicherer?

Rund um den Globus stellen immer mehr Bauern auf Bio um, die Realität des Ökolandbaus sieht in sogenannten Drittländern jedoch oftmals anders aus als in der Europäischen Union. Das neue Konformitätsprinzip soll hier Abhilfe schaffen. Der Beitrag befasst sich mit den neuen Importregeln der ab 1. Januar 2021 geltenden neuen EU-Öko-Verordnung 2018/848

Dietary Diversity in Cambodian Garment Workers: The Role of Free Lunch Provision

The objective of this paper is to compare food consumption by Cambodian garment workers with and without access to a free model lunch provision through a factory-based canteen. Data from an exploratory randomised controlled trial were analysed. In total, 223 female Cambodian garment workers were allocated to an intervention arm (six-month lunch provision) or a control arm. Dietary intake on workdays was assessed by qualitative 24-h recalls at baseline and twice at follow-ups during the period of lunch provision using the Food and Agricultural Organization (FAO) guideline on assessing women´s dietary diversity. In total, 158 participants provided complete data on the dietary intake over workdays at all interviews. Lunch provision resulted in a more frequent consumption of dark green leafy vegetables (DGLV), vitamin A-rich fruits, other fruits, and oils and fats during lunch breaks. In contrast, flesh meats, legumes, nuts and seeds, as well as sweets, were eaten at a lower frequency. Except for a higher consumption rate of vitamin A-rich fruits and a lower intake frequency of sweets, lunch provision had a less clear impact on total 24-h intake from different food groups and was not associated with a higher women´s dietary diversity score (WDDS). A more gap-oriented design of the lunch sets taking into account underutilised foods and the nutritional status of the workers is recommended

Neonatologie/Pädiatrie – Leitlinie Parenterale Ernährung, Kapitel 13

There are special challenges in implementing parenteral nutrition (PN) in paediatric patients, which arises from the wide range of patients, ranging from extremely premature infants up to teenagers weighing up to and over 100 kg, and their varying substrate requirements. Age and maturity-related changes of the metabolism and fluid and nutrient requirements must be taken into consideration along with the clinical situation during which PN is applied. The indication, the procedure as well as the intake of fluid and substrates are very different to that known in PN-practice in adult patients, e.g. the fluid, nutrient and energy needs of premature infants and newborns per kg body weight are markedly higher than of older paediatric and adult patients. Premature infants <35 weeks of pregnancy and most sick term infants usually require full or partial PN. In neonates the actual amount of PN administered must be calculated (not estimated). Enteral nutrition should be gradually introduced and should replace PN as quickly as possible in order to minimise any side-effects from exposure to PN. Inadequate substrate intake in early infancy can cause long-term detrimental effects in terms of metabolic programming of the risk of illness in later life. If energy and nutrient demands in children and adolescents cannot be met through enteral nutrition, partial or total PN should be considered within 7 days or less depending on the nutritional state and clinical conditions.Eine besondere Herausforderung bei der Durchführung parenteraler Ernährung (PE) bei pädiatrischen Patienten ergibt sich aus der großen Spannbreite zwischen den Patienten, die von extrem unreifen Frühgeborenen bis hin zu Jugendlichen mit einem Körpergewicht von mehr als 100 kg reicht, und ihrem unterschiedlichen Substratbedarf. Dabei sind alters- und reifeabhängige Veränderungen des Stoffwechsels sowie des Flüssigkeits- und Nährstoffbedarfs zu berücksichtigen sowie auch die klinische Situation, in der eine PE eingesetzt wird. Das Vorgehen unterscheidet sich deshalb ganz erheblich von der PE-Praxis bei erwachsenen Patienten, z.B. ist der Flüssigkeits-, Nährstoff- und Energiebedarf von Früh- und Neugeborenen pro kg Körpergewicht höher als bei älteren pädiatrischen und bei erwachsenen Patienten. In der Regel benötigen alle Frühgeborenen <35. SSW und alle kranken Reifgeborenen während der Phase des allmählichen Aufbaus der enteralen Nahrungszufuhr eine vollständige oder partielle PE. Die Zufuhrmengen der PE bei Neonaten müssen berechnet (nicht geschätzt) werden. Der Anteil der PE sollte zur Minimierung von Nebenwirkungen sobald wie möglich durch Einführung einer enteralen Ernährung vermindert (teilparenterale Ernährung) und schließlich komplett durch enterale Ernährung abgelöst werden. Eine unangemessene Substratzufuhr im frühen Säuglingsalter kann langfristig nachteilige Auswirkungen im Sinne einer metabolischen Programmierung des Krankheitsrisikos im späteren Lebensalter haben. Wenn bei älteren Kindern und Jugendlichen dagegen der Energie- und Nährstoffbedarf eines Patienten im Vorschul- oder Schulalter durch eine enterale Nährstoffzufuhr nicht gedeckt werden kann, ist abhängig von Ernährungszustand und klinischen Umständen spätestens innerhalb von 7 Tagen eine partielle oder totale PE zu erwägen

Performance of miniaturized atomic clocks in static laboratory and dynamic flight environments

Miniaturized atomic clocks with high frequency stability as local oscillators in global navigation satellite system (GNSS) receivers promise to improve real-time kinematic applications. For a number of years, such oscillators are being investigated regarding their overall technical applicability, i.e., transportability, and performance in dynamic environments. The short-term frequency stability of these clocks is usually specified by the manufacturer, being valid for stationary applications. Since the performance of most oscillators is likely degraded in dynamic conditions, various oscillators are tested to find the limits of receiver clock modeling in dynamic cases and consequently derive adequate stochastic models to be used in navigation. We present the performance of three different oscillators (Microsemi MAC SA.35m, Spectratime LCR-900 and Stanford Research Systems SC10) for static and dynamic applications. For the static case, all three oscillators are characterized in terms of their frequency stability at Physikalisch-Technische Bundesanstalt, Germany's national metrology institute. The resulting Allan deviations agree well with the manufacturer's data. Furthermore, a flight experiment was conducted in order to evaluate the performance of the oscillators under dynamic conditions. Here, each oscillator is replacing the internal oscillator of a geodetic-grade GNSS receiver and the stability of the receiver clock biases is determined. The time and frequency offsets of the oscillators are characterized with regard to the flight dynamics recorded by a navigation-grade inertial measurement unit. The results of the experiment show that the frequency stability of each oscillator is degraded by about at least one order of magnitude compared to the static case. Also, the two quartz oscillators show a significant g-sensitivity resulting in frequency shifts of - 1.2 × 10 [hoch -9] and + 1.5 × 10 [hoch -9], respectively, while the rubidium clocks are less sensitive, thus enabling receiver clock modeling and strengthening of the navigation performance even in high dynamics. © 2020, The Author(s)

Accessibility, availability and consumption of baobab during food emergencies in Kitui and Kilifi counties in Kenya

Baobab (Adansonia digitata L.) is an indigenous fruit tree (IFT) that grows in several dry parts of Kenya such as Kitui and Kilifi counties.&nbsp; It plays a key role in dietary diversification thus contributing to food and nutrition security. This tree is adaptable to adverse climatic conditions such as droughts and floods, which are common in these counties. Consequently, it acts as a source of income and a food&nbsp; buffer during disasters. This study evaluated the role baobab plays during food emergencies. The study employed a cross-sectional design where 216 household heads were interviewed through structured interviews. Data were analysed using SPSS version 24. Baobab was available during lean seasons and was used as a source of food and income. Respondents mainly consumed baobab fresh fruits without any processing (94%). During times of scarcity when there was nothing else available to eat. About 33.3% used baobab pulp to make porridge while 16.7% made a hard gruel (ugali). Drinks and candies, commonly called ‘mabuyu sweets’, accounted for 41.2% and 28.7%, respectively. In Kilifi, baobab pulp was mixed with coconut milk to be used as an accompaniment to ugali (34.3 %). About two thirds (60.7%) of the respondents collected and stored whole baobab fruits for use during lean seasons. Baobab pulp was sold by 34.7% of the respondents and the income was used to buy food (45.3 %), education (22.7%) and for healthcare (13. 3%). This study indicatesthat baobab fruit and pulp was available and accessible during lean seasons. The baobab pulp was mainly consumed without any processing as a snack. It also used to make different foods at times when many other foods were not available. Households sold baobab fruits to augment their income. Promotion of baobab products could bring better incomes and improve the nutritional status of communities in baobab growing areas and helps to overcome food insecurity in emergencies. Key words: lean seasons, baobab products, income, food insecurity, copin