Research Outputs
Environmental and health factors as organic fruit purchase drivers and the mediating role of price and effort
This article analyzes the organic fruit consumption behavior associated with environmental and health care. The literature review focused on the relationship between attitudes and perceptions of health care through the organic food consumption, and on the other hand, the association between the organic products consumer behavior and environmental care. The methodology included a theoretical relationship model proposed, considering different constructs provided by previous literature to measure motivations, fears and attitudes associated with the intention to purchase organic fruit, once the methods that confirm their validity and reliability were applied to evaluate seven direct relationship hypotheses, three indirect relationship hypotheses and two moderation hypotheses. As result, nine hypotheses are supported, being health and environmental motivations drivers of the attitude towards organic fruit and the intention to purchase organic fruit, intention that is reinforced by the positive attitude towards these foods but is moderated by the perceived price and the purchase effort.
Global trends in coffee agronomy research
This article empirically provides a scientific production trends overview of coffee agronomy at the global level, allowing us to understand the structure of the epistemic community on this topic. The knowledge contributions documented are examined using a bibliometric approach (spatial, productive, and relational) based on data from 1618 records stored in the Web of Science (JCR and ESCI) between 1963 and May 2021, applying traditional bibliometric laws and using VOSviewer for the massive treatment of data and metadata. At the results level, there was an exponential increase in scientific production in the last six decades, with a concentration on only 15 specific journals; the insertion of new investigative peripheral and semiperipheral countries and organizations in worldwide relevance coauthorship networks, an evolution of almost 60 years in relevant thematic issues; and a co-occurring concentration in three large blocks: environmental sustainability of forestry, biological growth variables of coffee, and biotechnology of coffee species; topic blocks that, although in interaction, constitute three specific communities of knowledge production that have been delineated over time.
Caffeine placebo effect in sport and exercise: A systematic review
The objective of this review article is to systematically identify the caffeine placebo effect in sport and exercise activities. We selected randomized controlled trial studies to better understand the impact of caffeine and its placebo effect on sports performance. We extracted a set of articles that refer strictly to the topics of caffeine and its placebo effect in sport and exercise, considering the databases integrated to the Core Collection Web of Science and Scopus, as well as the registration of the documents in PubMed®, a system with a selection process aligned with the guidelines for the PRISMA methodology, establishing the eligibility criteria of the articles with the PICOS tool, to which a systematic review is applied. Finally, the results show that caffeine improves anaerobic capacity and endurance, while placebo perceived as caffeine can also increase performance by reducing pain and improving concentration. This finding underscores the influence of expectations and placebo on physical performance, suggesting that managing these expectations may be an effective strategy for improving athletic performance.