RESUMO
Many reports have presented that in tight formation, the flow mechanism differs from a conventional reservoir, such as molecular diffusion, Pre-Darcy flow behavior, and stress sensitivity. However, for CO2 Huff-n-Puff development, it is a challenge to synthetically research these mechanisms. Considering the above flow mechanisms and offshore engineering background, the development plan optimization becomes a key issue. In this paper, a self-developed simulator that satisfies research needs is introduced. Then, based on experimental results, the simulation is launched to analyze the effects of CO2 diffusion, Huff-n-Puff period, and permeability heterogeneity. The results indicate that molecular diffusion makes a positive contribution to the oil recovery factor. Additionally, for offshore reservoirs, limited to the development cost and CO2 facilities corrosion, when the total Huff-n-Puff time is constant, the ratio of 0.5-1.0 between the Huff period and the Puff period in every cycle performs better. Finally, the greater heterogeneity in permeability is much more favorable for the CO2 Huff-n-Puff because of more intensive transport processes in formation. These different scenarios can increase the understanding of the CO2 Huff-n-Puff in tight oil offshore reservoirs.
RESUMO
Objective: Obsessive-compulsive disorder (OCD) is a complex mental disorder to treat. However, there are some deficiencies in research performed to date about the psychological and behavioral factors that may trigger obsessive-compulsive symptoms (OCS). Based on the Psychopathology of Self-Control Theory which states that deficits in self-control underpin psychiatric symptoms, this study investigated the factors influencing OCS among college students. Methods: A total of 5599 non-clinical Chinese college students were recruited to complete the Chinese version of the Self-Control Scale, Aitken Procrastination Inventory, and Symptom Checklist-90. Pearson's correlation analyses and the bootstrap method were performed to test our hypothesis. Results: The following results were obtained: (a) There were significant correlations among self-control, procrastination, anxiety, and OCS. (b) When controlling for the effects of age and sex, self-control remained a significant negative predictor of OCS. (c) The mediating roles of procrastination and anxiety, and the chain mediating role of procrastination and anxiety were the three predicted pathways linking self-control and OCS. Conclusion: This study highlights the significance of self-control deficiencies in OCS. It provides new insights into the psychological and behavioral factors that increase the risk of OCS with important practical implications for early intervention in OCD.
RESUMO
BACKGROUND: Social comparison is an inevitable aspect of human life, often leading to personal relative deprivation, wherein individuals experience a sense of unfair treatment when they perceive themselves as being at a disadvantage in comparison to others. Earlier research has observed a phenomenon called "lying flat" associated with personal relative deprivation, characterized by a lack of motivation for self-improvement. The purpose of this study is to investigate whether this pattern is suitable for the domains of health-promoting lifestyles given that health-promoting is driven by self-improvement motivation. METHODS: In three studies conducted in China, an understudied non-Western society, we investigated the association between personal relative deprivation and health-promoting lifestyles by utilizing diverse measures and samples. RESULTS: Findings from Study 1 (N = 12,465) indicated a negative relationship between personal relative deprivation and health-promoting behavior. This effect was particularly prominent among older individuals (Study 2, N = 11,378). Study 3 (N = 234) indirectly explored the possibility that a decreased priority given to health goals explains the reduced adoption of health-promoting behaviors when experiencing personal relative deprivation. LIMITATIONS: First, all health-promoting lifestyles are self-reported. Second, the mechanism between PRD and health-promoting lifestyles was not directly examined. CONCLUSION: Overall, this research confirms the physical "lying flat" phenomenon, highlighting that personal relative deprivation contributes to unhealthy diets and physical inactivity. Moreover, our findings also suggest that the lower significance placed on health goals relative to other life goals may serve as an underlying reason for this phenomenon.