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The cultural, ecological, and commercial forces that influence Vietnamese home gardens are explored in this 3-year International Plant Genetic Resources Institute (IPGRI) study. Home gardens located in four different ecosystems within Vietnam were surveyed to determine species composition, area, structure, commercialization, household socio-economic status, and gender division in decision-making. Four key species were chosen for in depth ethnobotanical and genetic diversity studies; preliminary results from participatory appraisal workshops are reported including farmer varietal preferences, descriptors, and a seasonal calendar. Cultural importance of home gardens and their species in Vietnam is also discussed. The study concludes that richness and stability of home gardens make them important sites for in situ conservation within ecozones, and great scope exists for the utilization of this information to improve nutritional and income-generating development projects. [Copyright &y& Elsevier]

Discusses the problem of rural depopulation in southwestern Ontario. High commercialization of agriculture; Attraction of expanding cities; Declaration of provincial Minister of Agriculture Colonel Kennedy that Ontario needs fewer farmers and better farms; Cause of rural depopulation; Migration of the non-farm population; Area of poor drainage Haldimand County; Changes in farming; Eroded area of Ganaraska; Effects of depopulation on forms of settlement; Evidences of cultural lag.

Honeycomb crash absorbers are known as mechanical energy-absorbing systems in both automotive and aerospace industries. However, the gap of knowledge in the transverse impacts of multi-foam-filled or stiffener-reinforced honeycombs is still unfilled. This paper investigates the energy absorption process in large crash boxes applied onto a road maintenance vehicle, exploring four aluminium honeycomb absorbers with design factors like added aluminium foam, corrugated sheet thicknesses, and stiffener reinforcements. The optimised foam-filled honeycomb structures are analysed for four crash scenarios in two different directions; frontal impact (T-direction) and lateral impact (L-direction) subjected to 50 km/h crash speed. The objective of this research is to identify the most efficient design that achieves a maximum acceleration of up to 20g while absorbing a specific energy of 145 kJ. The FE models were developed in ABAQUS to explore various scenarios related to damage zones, impact energy capabilities, and multi-foam-filled crash boxes. Finally, the lightest design of honeycomb absorbers which can maximise energy absorption while maintaining acceleration below the specified threshold of 20g will be recommended. • This paper investigates energy absorption in large crush boxes on a road maintenance vehicle, exploring four aluminium honeycomb cases with various design factors. • The ABAQUS software was used for the FE model development, exploring scenarios related to crushed area, impact energy, and number of crash boxes. • The main goal of this study is to define the lightest design of honeycomb absorbers maximising energy absorption while maintaining acceleration below 20g for safety requirements. [ABSTRACT FROM AUTHOR]

• Introducing various trigger mechanisms – cut-out holes, circufemential notch and end fillet. • Higher efficiency of three cut-out holes in comparison with other trigger mechanisms. • Significant improvement in crush force efficiency. This paper aims to investigate the effect of a trigger mechanism on the crush force efficiency of aluminium tubular absorbers. Various trigger mechanisms such as cut-out holes, circumferential notch and end-fillet, were studied using the validated numerical model. Initially, tubes made of aluminium displayed better crashworthiness behaviour when compared with steel tubes based on numerical and experimental results. Then the trigger mechanism consisting of three cut-out holes was found more efficient than the ones with an end fillet and a circumferential notch based on a comparative study. According to these results, the developed trigger mechanisms have a significant change in crashworthiness performance of tubular absorbers. Crush force efficiency was doubled with the help of this trigger mechanism while stroke efficiency and specific energy absorptions were reduced by 4% and 15% respectively. [ABSTRACT FROM AUTHOR]

Abstract: We measured the analyzing power and the efficiency of a neutron polarimeter at the Saturne National Laboratory in France with central energies of the neutron beam of , and 1057MeV. This polarimeter was a prototype designed to measure , the neutron electric form factor, at the Thomas Jefferson National Accelerator Facility. [Copyright &y& Elsevier]