Abstract While new types of consumer services emerge to fulfill people's diverse requirements, one of the most pressing societal concerns is how to improve the health of the elderly and allow them to live their golden years in good physical and mental health. This research is based on the Whole Systems Research (WSR) method, which expands and improves the theoretical research field of delivery service. The planning and service process of healthy diet opens up new service content and service system for the logistics and delivery industry; the research results of this paper are based on the innovation of systematic service model in three levels: physical, physical, and human, which can broaden the service model for related logistics enterprises and new retail market. The research results of this paper, which are based on the innovation of systematic service model from physical and human levels, can broaden the marketing mode and funding source for related logistics enterprises and new retail market; the overall research process and the application of research method can provide theoretical reference for related research institutions.

Abstract Food safety is enhanced by the use of antimicrobials that prevent or delay spoilage and ensure widespread use of pesticides with drawbacks such as increased costs, concerns about food residues and toxins. This study evaluated the production capacity of antimicrobial proteins by two Enterococcus strains (Enterococcus faecalis and Enterococcus hirae). After the cultures of Enterococcus faecalis and Enterococcus hirae in BHI agar medium, the antimicrobial compounds of the strains were purified by dialyzing, and the amount of produced protein was determined by a Lowry test. Further, SDS-PAGE electrophoresis was used to estimate molecular weight. The well-diffusion method was used to test the antimicrobial properties of the compounds studied. Before and after dialysis, factors related to protein activity were determined. Additionally, compounds were evaluated for their minimum inhibitory concentrations. The results show that the most antimicrobial effect of antimicrobial species on the Bacillus cereus and more antimicrobial effects on the hirae species on Staphylococcus aureus.

Abstract In this research, the quality properties of persimmon were predicted using artificial intellect techniques. The persimmon samples were transferred to a computer vision lab, room temperature of 24 °C and 22% RH. The samples were divided into three groups for temperature treatment. They were kept at three temperature levels of 5 °C, 15 °C, and 24°C (control group) for 72 hours. The sample was then placed at room temperature and was imaged every second day for a 14 day period. After imaging, each sample underwent destructive tests to determine their quality attributes, including sugar content, firmness, and pH. The results indicate that the neural network's predicted values of acidity, firmness, and sugar of persimmon were not statistically significant differences from their actual values. In predicting the acidity of persimmon, the sugar RMSE is more than the two factors of firmness and acidity. For this reason, the accuracy of firmness and acidity is higher than sugar. MAPE is 10.11, 20.81, and 6.03 for acidity, firmness, and sugar, respectively. The model for sugar indicates a high difference between the actual values and the predicted values.

RESUMO Introdução: O treinamento com realidade virtual (TRV) é uma tecnologia avançada que cria jogos virtuais para computador por meio de software específico. É um tipo de treinamento de reabilitação comumente usado em problemas de equilíbrio no tratamento de doenças musculoesqueléticas. Objetivo: Determinar e comparar os efeitos dos jogos de realidade virtual com o treinamento de estabilização central na eficiência física de jogadores de futebol com dor lombar crônica. Métodos: Estudo randomizado, duplo-cego e controlado realizado com 60 participantes com lombalgia em um hospital universitário. O primeiro grupo (n = 20) recebeu treinamento de realidade virtual (RV), o segundo grupo (n = 20) recebeu treinamento de estabilização central (EC) e o terceiro grupo (n = 20) recebeu exercícios de treinamento convencional por quatro semanas. Os escores de desempenho clínico e esportivo foram medidos no início do estudo e depois de 4 semanas, 8 semanas e 6 meses. Resultados: As características demográficas e clínicas basais não mostraram diferença significativa (p > 0,05) na análise estatística, o que indica população homogênea. Quatro semanas depois do treinamento, o grupo RV mostrou mudanças mais significativas nos escores clínicos do que os grupos EC e controle (p ≤ 0,001). Os escores de desempenho esportivo também mostraram melhora significativa no grupo RV do que nos outros dois grupos (p ≤ 0,001). As mesmas mudanças benéficas de desempenho clínico e esportivo foram observadas em 8 semanas e 6 meses de acompanhamento no grupo RV em comparação com os outros dois grupos (p ≤ 0,001). Conclusão: Este estudo sugere que o treinamento com jogos de realidade virtual resulta em melhora do desempenho clínico e esportivo a longo prazo do que outras formas de treinamento em jogadores de futebol com dor lombar crônica. Nível de evidência Ib; Estudos terapêuticos, Investigação dos resultados de tratamentos.

ABSTRACT Introduction: Virtual reality training (VRT) is an advanced technology that creates virtual games by a computer through specific software. It is a type of rehabilitation training commonly used in balance problems to treat musculoskeletal conditions. Objective: To determine and compare the effects of virtual reality games with those of core stabilization training on physical efficiency in soccer players with chronic low back pain. Methods: A randomized, double-blinded, controlled study was conducted on 60 LBP participants at a university hospital. The first group (n=20) received virtual reality (VR) training; the second group (n=20) received core stabilization (CS) training; and the third group (n=20) received conventional training exercises for four weeks. Scores of clinical and sports performance were measured at baseline, and after 4 weeks, 8 weeks and 6 months. Results: The baseline demographic and clinical characters did not show any significant differences (p>0.05) in the statistical analysis, which shows a homogenous population. Four weeks following the training, the VR training group showed more significant changes in clinical scores than the CS training and control groups (p≤0.001). The scores for sports performance also showed more significant improvement in the VR training group than in the other two groups (p≤0.001). The same improved clinical and sports performance changes were seen at 8 weeks and 6 months of follow-up in the VR training group, when compared to the other two groups (p≤0.001). Conclusion: This study suggests that training through virtual reality games results in long-term improvement in clinical and sports performance compared to other forms of training in soccer players with chronic low back pain.Level of evidence I b; Therapeutic studies – Investigation of treatment results.

RESUMEN Introducción: El entrenamiento de realidad virtual (VRT) es una tecnología avanzada, que crea juegos virtuales por computadora a través de un software específico. Es un tipo de entrenamiento de rehabilitación que se usa comúnmente en problemas de equilibrio para tratar afecciones musculoesqueléticas. Objetivo: Encontrar y comparar los efectos de los juegos de realidad virtual sobre el entrenamiento de estabilización central sobre la eficiencia física en jugadores de fútbol con dolor lumbar crónico. Métodos: Se realizó un estudio controlado, aleatorizado, doble ciego en 60 participantes con dolor lumbar en un hospital universitario. El primer grupo (n = 20) recibió entrenamiento de realidad virtual (VR), el segundo grupo (n = 20) recibió entrenamiento de estabilización central (CS) y el tercer grupo (n = 20) recibió ejercicios de entrenamiento convencionales durante cuatro semanas. Los puntajes de rendimiento clínico y deportivo se midieron al inicio del estudio, después de 4 semanas, 8 semanas y 6 meses. Resultados: Los caracteres demográficos y clínicos basales no mostraron ninguna diferencia significativa (p. 0,05) en el análisis estadístico lo que indica una población homogénea. Cuatro semanas después del entrenamiento, el grupo de entrenamiento de RV mostró cambios más significativos en las puntuaciones clínicas que los de entrenamiento de CS y los grupos de control (p≤0,001). Las puntuaciones de rendimiento deportivo también mostraron una mejora significativa en el grupo de entrenamiento de RV comparadas con los otros dos grupos (p≤0,001). Hubo los mismos cambios clínicos y de rendimiento deportivo a las 8 semanas y 6 meses de seguimiento en el grupo de entrenamiento de RV y en los otros dos grupos (p≤0,001). Conclusión: Nuestro estudio sugirió que el entrenamiento a través de juegos de realidad virtual mejoró el rendimiento clínico y deportivo más que otros entrenamientos en jugadores de fútbol con dolor lumbar crónico a largo plazo. Nivel de evidencia Ib; Estudios terapéuticos, investigación de los resultados del tratamiento.