The objective of this research was to apply static and dynamic sensometric techniques to determine the impact of processing factors (dehydration time, frying exposure time) and storage duration on the sensory and cognitive characteristics, as well as consumer preference, of chayote chips. A total of 18 types of chips were prepared (using a combination of three frying temperatures [140, 150, 160 °C], two exposure times [5 and 10 s], and three periods of storage [0, 30, and 60 days]). A panel of 100 consumers was formed to evaluate sensory and cognitive attributes (emotions and memories) as well as overall liking, using static techniques such as Rate-All-That-Apply (RATA), Check-All-That-Apply (CATA), and a hedonic scale. Finally, the temporal dominance of sensations (TDS) dynamic technique was used to study the behavior of chips with higher levels of preference. The results of the sensory techniques indicated that the storage day factor influenced the sensory results. The samples prepared on the same day were perceived with high intensities of typical attributes of this type of food (bitter-BT, Fried-A, Sweet-A, Potato-A, Toasted-A, Chayote-A, Potato-F, Crunchy, Chayote-F, and Sweet-BT) while evoking positive emotions and memories in consumers (active, enthusiastic, free, good, good nature, happy, interested, satisfied, traditional food, family, summer, party, and mild weather). In terms of preference, consumers selected the chip samples with 0 days of storage. The TDS curves determined that the dominant attributes of the chayote chips with 0 days of storage were chayote flavor, sweet, and fried (with a dominance t = 5–20 s). Regarding the cognitive aspect, these chayote chips evoke positive dominant emotions (good, satisfied, and happy from t = 8–20 s) as well as dominant positive memories of childhood (t = 9–20 s), traditional food (t = 11–20 s), and friendship (t = 11–20 s).

The present general model of the distribution of the logistics value chain considers the production processes, as well as the economic factors and logistics costs operating in the different stages of a purified water company. The model has a general application for companies that distribute goods and services, and serves as support in the choice of policies and operating scenarios. Operating conditions typical of the industry in Mexico are contemplated, specifically of bottled water purification companies. It is intended to evaluate the different operating conditions that optimize delivery points, distribution centers and production plants, considering a holistic vision to meet the objectives of a distribution system, considering their random variations and their impact on the global system to take the preventive and corrective actions to improve the logistics of operation. The above is exemplified with some adjustments that are made on the P-median model where it is shown how this variation would be applied, not considering the source or parent plant as a distribution center option. The improved model offers fundamental advantages over the rest of the techniques reviewed in the literature, such as introducing the information obtained into the model by making the distribution network more optimal, thus collecting not only objective data but also the preferences and forecasts of the decision maker himself.

Air pollution represents a global environmental and health challenge. This study addresses the issue of air quality in the central area of Huatusco, Veracruz, through the implementation of a monitoring system based on low-cost sensors and the SparkFun platform. Strategic sampling points were selected based on population density and pollutant emission sources, using data from INEGI. The study focused on measuring criterion pollutants by conducting vertical soundings to obtain a detailed profile of their atmospheric concentration.

El objetivo de esta investigación fue aplicar las técnicas multicriterio para la reducción de vocabularios cognitivos para la evaluación de cafés. Se aplicaron las técnicas multicriterio Análisis de Procesos Jerárquicos (APJ) y TOPSIS con cafeticultores expertos para la selección de emociones y recuerdos basados en los vocabularios EsSense25 y MemVOC. Se obtuvo un total de siete emociones (cuatro positivas y tres negativas) y siete recuerdos (cuatro positivos y tres negativos) vía APJ, y con la técnica TOPSIS se obtuvo un total de cuatro emociones (dos positivas y dos negativas) y 11 recuerdos (ocho positivos y tres negativos). Se concluye que el uso de las técnicas multicriterio permite hacer una reducción importante de los vocabularios originales EsSense25 y MemVOC. Estos vocabularios reducidos pueden usarse en otras técnicas sensoriales con la finalidad de generar los perfiles cognitivos en menor tiempo y en contextos de laboratorio de evaluación sensorial como vía remota.