Sustainable agrifood supply chains: Bibliometric, network and content analyses.

Nowadays the agrifood system requires major transformations aimed at promoting sustainability, reducing waste and stimulating a change toward healthy sustainable diets. The scientific literature on the transition to sustainable food models continues to develop rapidly and there is an urgent need to systematize its knowledge structure and thus make future research more vigorous. Recently, several studies have focused on certain aspects of supply chain, such as traceability or decision-making frameworks, but a systematic review of the role of sustainability within the agrifood supply has never been carried out. Through a bibliometric analysis combined with network and content analyses, the present study is aimed at identifying homogeneous areas in the field of agrifood supply chains, investigating the role of innovation technology in the transition to sustainability. The bibliometric results showed that sustainable agrifood supply chains are experiencing an evolving positive trend and represent a challenging research topic which is capturing the attention of scholars. From the network and overlay visualization of keyword co-occurrences four different research clusters were identified and the blockchain emerged as central topic in the field of food security and safety. The content analysis highlighted greater attention to the environmental pillar, compared to the economic and social pillars of the sustainability paradigm. A lack of studies was also observed on the post-consumption phase of the agrifood supply chain, which could represent a research gap to be fulfilled in the light of circular economy.

Assessing the carbon footprint across the supply chain: Cow milk vs soy drink.

Since livestock product consumption could have a significant effect on tackling climate change, in the few last years, there has been an increasing consumer demand for non-dairy alternatives. Despite plant-based beverages being considered crucial to foster the transition towards sustainable diet models, no studies have yet compared the level of emissions of plant-based beverages with animal-based ones. The present study aims at computing the carbon footprint of cow milk and that of soy drink and evaluating the carbon footprint results in the light of the substitutability of cow's milk with soy drink, analyzing the potential environmental, economic and nutritional trade-offs between the two products. Results highlight that, considering the environmental perspective, soy drink could be a valid substitute of cow milk: its production has a lower carbon footprint, allowing for the achievement of food security objectives. However, focusing on the economic and nutritional perspectives, the high average consumer price of soy drink is associated with an overall lower nutritional level. In order to reach the same nutritional value as 1 L of cow milk in terms of protein intake, the consumption of soy drink should be increased by 13%. Furthermore, soy drink consumption implies paying 66% more than for cow milk, when considering the same protein content.

[Intrathecal synthesis of IgG in HIV infections]. / Sintesi intratecale di IgG in corso di infezioni da HIV.

CSF and serum of 80 HIV-seropositive patients in various stages of the disease were examined. Total as well as intrathecal IgG synthesis appeared to be frequently elevated in each diagnostic group. Abnormal CSF oligoclonal IgG fractions were significantly more frequent in asymptomatic patients. CSF pleocytosis was found with a lower percentage in neurological AIDS patients. In patients subdivided according to blood T helper cell count, the distribution of the abnormal CSF parameters confirms that the immunological response in the CNS is mediated by interaction with systemic immunity.