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Assessing Agricultural Systems Using Emergy Analysis: A Bibliometric Review

Sustainable intensification requires metrics that are able to capture both economic performance and the often-hidden environmental inputs that support agriculture. Emergy analysis (EmA) meets this need by converting all inputs—free environmental flows and purchased goods/services—into a common unit (solar emjoules, sej). We conducted a PRISMA-documented bibliometric review of EmA in agroecosystems (Web of Scien...

João Serra

Nitrogen inputs by irrigation is a missing link in the agricultural nitrogen cy...

Irrigation, one of the 28 agri-environmental indicators defined in the European Common Agricultural Policy, is often neglected in agricultural nitrogen (N) budgets, while it can be a considerable source of N in irrigated agriculture. The annual N input from irrigation water sources (NIrrig) to cropping systems was quantified for Europe for 2000–2010 at a resolution of 10 × 10 km, accounting for crop-specific gr...

How much can changes in the agro-food system reduce agricultural nitrogen losse...

Ammonia (NH3) volatilization, nitrous oxide (N2O) emissions, and nitrate (NO3 ) leaching from agriculture cause severe environmental hazards. Research studies and mitigation strategies have mostly focused on one of these nitrogen (N) losses at a time, often without an integrated view of the agro-food system. Yet, at the regional scale, N2O, NH3, and NO3 loss patterns reflect the structure of the whole agro-food...

Development of a groundwater contamination index based on the agricultural haza...

Reducing nitrate leachingmay not result in a significant improvement of groundwater quality. The amount of nitrate reaching groundwater depends not only on the hazard related to agricultural activities but also on-site specific groundwater vulnerability. Using national databases and other compiled datasets, the agricultural hazard was calculated as the ratio of (i) the nitrate leached estimated from the N surpl...

Contrasting considerations among agricultural stakeholders in Japan on sustaina...

Sustainable nitrogen (N) management in agriculture is one of the most important issues affecting the environmental performance of modern agriculture. It is actually well perceived that coordinated efforts and holistic approaches are required to regulate N use by farmers. The purpose of this study was to provide an initial examination of stakeholders’ views in Japan regarding N use in agriculture and challenges ...

In-Depth Analysis of the Impact of Different Serum-Free Media on the Production...

Dendritic cell (DC)-based antitumor vaccines have proven to be a safe approach, but often fail to generate robust results between trials. Translation to the clinic has been hindered in part by the lack of standard operation procedures for vaccines production, namely the definition of optimal culture conditions during ex-vivo DC differentiation. Here we sought to compare the ability of three clinical grade serum...

Considerations and mechanical modifications on ASBGo Smart Walker

It is known that human mobility has the tendency to decrease, gradually, with age as a consequence of neurological, muscular and/or osteoarticular deterioration. Thus, in an aging society, devices that provide mobility assistance and ambulatory daily exercises are essential for the health and life quality of such individuals. Besides a brief introduction about gait aid devices, this paper presents and proposes ...

A NATO e o Cáucaso – um novo desafio

O Cáucaso inclui as Repúblicas e regiões do Cáucaso do Norte que integram a actual Federação Russa, e os países da Transcaucásia: Azerbaijão, Arménia e Geórgia. A cadeia de montanhas que se estende entre o mar Negro e o mar Cáspio constitui um intricado mosaico de povos, etnias, culturas e religiões, e por isso um terreno propenso a antagonismos e disputas. Sendo uma região historicamente atrasada, possui contu...