With the rapid changes in external environments, cognitive adaptability has become crucial for vocational students’ personal growth and career development. However, previous research predominantly focused on traditional single-level effects, overlooking multilevel impacts of school climates. Hence, based social theory social–ecological systems theory, this study employs structural equation modeling (MSEM) to examine effects competitive collaborative environments attitude, task motivation, at...

The purpose of this study is to verify the influence internet usage frequency on women's fertility intentions and examine mediating effects gender role attitudes, under that affects intentions, combined with specific Chinese cultural context. A cross-sectional secondary data analysis was conducted using a sample 3113 women childbearing age in General Social Survey 2017 (CGSS2017). results negative binomial regression model showed that, premise controlling individual characteristic variables,...

To explore the impact and mechanism of weight status on disordered eating behavior university students, this study conducted a moderated chain mediation model based Escape Theory Strength Model Self-Control. This was cross-sectional online at in Shanghai. The questionnaire distributed via communication tools such as WeChat from March 6 to 15, 2022, receiving 2618 valid responses. empirically examined with 10,000 Bootstrap samples using AMOS software. (1) Weight can indirectly predict through...

"Re-visits and drug renewal" is difficult for chronic disease patients during COVID-19 will continue in the post-pandemic era. To overcome this dilemma, scenario of diagnosis treatment systems was set, an evolutionary game model participated by four stakeholder groups including physical medical institutions, service platforms, intelligent device providers, patients, established. Ten possible stabilization strategies (ESSs) with their mandatory conditions were found based on Lyapunov's first...

This study explores the channel preference of a platform and green manufacturer in an online market. The offers both agency reselling channel, while designs product to improve effort sells it through platform. We find that manufacturer’s is determined by interaction investment, commission rate, competition intensity. In contrast, prefers hybrid when rate investment inefficiency are moderate but otherwise. Interestingly, can change its sales center between thus resulting win–win outcome for...

Introduction In recent years, “lying flat” has emerged as a significant term in contemporary discourse, referring to the phenomenon where modern young people choose passive resistance due lack of motivation when facing various situations. These trends have potential diminish future learning enthusiasm and holistic development vocational high school students, thus impacting their competitiveness job market. Methods This study employs motivational model for students based on self-efficacy...

In this paper, we model and formulate the search-based advertising auction problem with multiple slots, choice behaviors of advertisers, popular generalized second-price mechanism. A Lagrangian-based method is then proposed for tackling problem. We present an extension to subgradient algorithm based on Lagrangian relaxation coupled column generation in order improve dual multipliers accelerate its convergence. Simulation results show that efficient it shows significant improvement compared...

Post-pandemic, the use of medical supplies, such as masks, for epidemic prevention remains high. The explosive growth waste during COVID-19 pandemic has caused significant environmental problems. To alleviate this, environment-friendly measures should be developed, used, and promoted. However, contradictions exist between governments, production enterprises, institutions regarding green transformation anti-epidemic supplies. Consequently, this study aimed to investigate how effectively guide...

In this paper, we study a new exact and smooth penalty function forsemi-infinite programming problems with continuous inequalityconstraints. Through function, can transform asemi-infinite problem into an unconstrained optimizationproblem. We find that, under some reasonable conditions when thepenalty parameter is sufficiently large, the local minimizer of thispenalty primal problem.Moreover, mild assumptions, exactness propertyis explored. The numerical results demonstrate that it...

This paper considers a two-supplier one-retailer coordinated supply chain system with auction and contracting mechanism incorporating participants' risk attitudes. The attitude is quantified using the value-at-risk (VaR) measure retailer faces stochastic linear price-dependent demand function. In chain, suppliers (providing identical products) compete each other in order to win ordering contract of retailer. Several mechanisms are developed compared. It can be analytically shown that retail...

In this paper, we present a new exact and smooth penalty function for nonlinear programming problems by adding only one variable no matter how many constraints.Through the function, can transform into unconstrained optimization models.We demonstrate that under some general conditions, when parameter σ > 0 is sufficiently large, minimizer of primal problem, which be obtained after finite iterations.Alternatively, mild assumptions, sufficient conditions are derived local exactness property.The...

This paper discusses the issues about channel selection in e-commerce context. In order to identify whether manufacturer or retailer is more suitable open direct channel, we establish a game model and compare whole members’ profits total supply chain’s profit four different structures. addition, study optimal market strategies of dual-channel retailer, design revenue sharing contract – provides products with low price, return, shares part as an additional strategic tool for full...

This paper considers a supply chain system with two competing suppliers providing identical products or service to retailer incorporating risk attitudes. The attitude is quantified using the value-at-risk measure and faces stochastic exponential price-dependent demand function. Several simple situation auction mechanisms are developed compared. results show that, for two-part contracting mechanisms, low-cost supplier cooperating together maximize total profit of complete information...

It is common for a supplier to sell products multiple retailers. In this paper, we investigate the equilibrium behavior of decentralized supply chain with retailers facing random price-dependent demand in additive form. Here, consider two kinds functions: distribution depends only on retailer’s own retail price (noncompeting retailers) and not his but also that other (competing retailers). We present appropriate wholesale price, buy-back, lost-sales cost-sharing contracts coordinate total...

This paper examines competition between two heterogeneous service providers (SPs) in a procurement market. We investigate supply chain consisting of one integrator (SI), and SPs who compete the SI’s order with their own reservation profits. To select favorable SP centralize total system, we propose an auction mechanism symmetric asymmetric information scenarios find that channel coordination can be achieved by means efficient mechanism, hence, Pareto improvement conditions clearly...