Le développement agricole en République démocratique du Vietnam

Agricultural Development in the Democratic Republic of Vietnam After outlining the amelioration in rural life resulting from nearly 30 years of agrarian reform, the author discusses the organization and management of cooperative farms. He then explains how peasant participation in various collective projects, particularly the construction of hydraulic systems, has developed and contributed to the diversification and intensification of agricultural activities. These improvements in addition to educational progress encouraging the application of technical innovations have greatly improved the standard of living of millions of peasants.Après avoir donné un bref aperçu des améliorations apportées à la vie rurale par une politique agraire poursuivie sur près de trente années, l'auteur décrit la gestion des coopératives agricoles. Il explique comment la participation paysanne aux projets d'aménagement (surtout en ce qui concerne la maîtrise de l'eau) s'est développée, permettant la diversification et l'intensification de l'agriculture. En conclusion, il constate que le niveau de vie de millions de paysans s'est accru grâce à ces travaux collectifs et aussi aux progrès de l'éducation qui favorisent l'application d'innovations techniques.Khac-Vien Nguyen. Le développement agricole en République démocratique du Vietnam. In: Études rurales, n°53-56, 1974. pp. 505-512

Real-time energy harvesting aided scheduling in UAV-assisted D2D networks relying on deep reinforcement learning

Unmanned aerial vehicle (UAV)-assisted device-to-device (D2D) communications can be deployed flexibly thanks to UAVs’ agility. By exploiting the direct D2D interaction supported by UAVs, both the user experience and network performance can be substantially enhanced at public events. However, the continuous moving of D2D users, limited energy and flying time of UAVs are impediments to their applications in real-time. To tackle this issue, we propose a novel model based on deep reinforcement learning in order to find the optimal solution for the energy-harvesting time scheduling in UAV-assisted D2D communications. To make the system model more realistic, we assume that the UAV flies around a central point, the D2D users move continuously with random walk model and the channel state information encountered during each time slot is randomly time-variant. Our numerical results demonstrate that the proposed schemes outperform the existing solutions. The associated energy efficiency game can be solved in less than one millisecond by an off-the-shelf processor using trained neural networks. Hence our deep reinforcement learning techniques are capable of solving real-time resource allocation problems in UAV-assisted wireless networks

Re-orientations : East Asian popular cultures in contemporary Vietnam

Vietnamese-Australians live in Australia, a large island continent. The physical contrast between Vietnam and Australia is remarked upon by many Vietnamese in their migration stories. Whereas Vietnam is remembered as an interlinked sensual and social world, Australia is often viewed as a harsh, spacious, empty, dry continent. Australia is located in a regional Asian context, but this location has always been culturally and politically problematic, as it historically attempted to define itself as a "white" European nation in the Southern Hemisphere (Ang, 2000, p. xiii; McNamara & Coughlan, 1997, p. 1). During the Gold Rush period in the late 1800s, when there was widespread opposition to Chinese labor, Australia implemented a "White Australia" policy, although there were historically a significant number of Australians of Asian background. This exclusionary immigration policy was effectively overturned in the 1970s with the acceptance of a large number of refugees from Vietnam, Cambodia, and Laos in 1975. Vietnamese-Australians live predominantly in urban areas with over three quarters living in Sydney and Melbourne, the two largest cities. Within these two cities they are also highly concentrated in ethnically diverse suburbs, most living in areas with more than 1,000 residents born in Vietnam (Viviani, 1996, p. 49). However, Jupp (Jupp et al., 1990; Jupp, 1993) has argued that these areas are also zones of transition, with much movement in and out