Blockchain technology is a distributed database, an innovation tool in the agri-food supply chain in processes such as production, distribution, marketing. In this research work, the blockchain technology application in agri-food security processes was evaluated, establishing the best conditions for its adoption in companies, this proposal synthesizes the contributions as a disruptive technology, for this, the information was collected from the period 2018-2020 from the Scopus and Web of Science bases, performing an analysis of the information using the Atlas TI 8.4 software, establishing the focus of the research on a network of codes suggested by some authors. It was found that the contribution of Blockchain for the years of study was traceability 26%, supply chain 17.5%, technological development 10.4%, trust 9.8%, among others. It is concluded that establishing the theoretical link between technology and traceability processes in supply chains, traceability in the agri-food sector is essential to certify information of interest to the stakeholder group. This is because traceability is the transcendental element of the food safety system that allows guaranteeing control in the supply chain when processes are being recorded and enriching the databases, which can be available to the final consumer to check the details of the production cycle and that technological elements generate competitiveness in companies with blockchain in their procedures, promote high levels of transparency, data security, decentralization, among other terms associated with trust, and a better relationship with the consumer is developed and a greater number of sale increasing profitability.
This study evaluated the chemical composition and anti-proliferative activity of essential oils (EOs) obtained by hydrodistillation from seven medicinal plants from Cachicadán, La Libertad Region, Peru. Limonene (0.64 to 44.43%) and linalool (0.36 to 2.12%) were identified in all EOs by gas chromatography coupled to mass spectrometry analysis. The major components (relative intensity ≥ 10%) were cisdihydro carvone, carvone, and cis-piperitone epoxide for Minthostachys mollis leaves; β-pinene, limonene, and ledol for Lepechinia heteromorpha leaves; limonene, neral, and geranial for Aloysia citriodora, both leaves and flowers; αpinene, and limonene for Myrcianthes myrsinoides leaves; and α-pinene, βmyrcene, and (E)-β-Ocimene for Dalea carthagenensis leaves. Constituted by (Z)β-ocimene, dihydrotagetone, (Z)-tagetone, and car-3-en-2-one, EO of Tagetes minuta leaves induced an irreversible cytostatic effect against MCF-7 human breast tumour cells. Further in vivo studies must be carried out to establish the safe and efficient dose of T. minuta EO as adjuvant treatment in oncological therapies.
Background: This study focuses on enhancing student success in an undergraduate human physiology course offered by the Department of Pharmacy and Biochemistry at the National University of Trujillo (UNT), Peru. This study was motivated by a retrospective view of student performance during the academic years 2008 to 2016, in which only a low percentage of students were able to successfully pass the course. Method: In 2017, a questionnaire on visual-auditory-kinesthetic learning styles (VAK) revealed that the predominant learning style among students was visual-auditory. Thus, a Visual Thinking student-centred learning strategy was tested and implemented. Results: A noticeable improvement in student success, class participation, and student engagement were observed and linked to the novel learning system adopted. Also, Visual Thinking allowed students to engage in activities that make visible the processes of their creative thinking by laying their ideas graphically, rather than merely showing the conclusions of their thinking.
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