Research on the ordering strategy problem in supply chain with profit allocation under two-level price-fluctuation sales.

This paper investigates optimal ordering strategies in supply chains under two-level price fluctuations and initial profit allocation. By utilizing Copula functions to model the complex relationship between fluctuating prices and uncertain demand, the study develops both continuous and discrete decision models for practical applications. A discrete algorithm is proposed to approximate the optimal solution, with its convergence rigorously proven.

Development and challenges of autonomous electric vertical take-off and landing aircraft.

Urban Air Transportation (UAT) encompasses private aircraft, air taxis, and specialized missions. These missions include aerial sightseeing, logistics transportation, emergency response, and anti-terrorism operations. They impose stringent requirements on advanced air mobility (AAM) aircraft.

Overview of rural credit environment in China: Measurement logic, evaluation system, and case analysis.

A rational evaluation of the rural credit environment's current state and identification of its critical issues are crucial for enhancing the construction of rural social credit systems. Drawing on the "Outline for the Construction of the Social Credit System (2014-2020)" and related literature, this paper clarifies the concepts and measurement principles of the rural credit environment. This study innovatively constructs an evaluation framework for the rural credit environment and conducts quantitative measurements and statistical analyses using a combined weighting method to delineate the environment's current state.

From starvation to depression: unveiling the link between the great famine and late-life depression.

Background: The Great Famine in China from 1959 to 1961 is recognized as one of the most severe social and public health disasters of the 20th century, with profound long-term impacts on the health of survivors, particularly on their mental health. Early-life malnutrition and psychological trauma are considered to contribute to a range of health issues in adulthood, including depression.

Objective: This study aims to explore how the experience of the Chinese Great Famine from 1959 to 1961 affects the risk of depressive symptoms among the elderly.

Easing caregiver strain: The power of health check-ups.

Against the backdrop of global aging and escalating pressures on family caregiving, this study delves into the impact of health check-ups for the elderly on alleviating the objective burden of family caregiving by analyzing China's Free Health Check-up Program (FHCP). Using an unbalanced panel dataset spanning 2011, 2013, 2015, 2018, and 2020, comprising approximately 35,000 observations of the elderly population aged 65 and above, the research employs the Difference-in-Differences method. The research reveals a significant 9.

Can changes in corporate income tax rate affect corporate innovation?

The relationship between corporate income tax rates and innovation is a critical international issue. Existing studies often overlook the potential mechanisms of market competition and productivity heterogeneity. This paper addresses these gaps by integrating these elements into a unified mathematical analysis framework.

Centralization or decentralization? Power allocation in team innovation management.

Power disparity, as an important form of internal team hierarchy, presents a "double-edged sword effect". To reconcile the inconsistent effects and systematically explore the different mechanisms of power disparity, this study constructs a comprehensive theoretical model based on power functionalism and power conflict theory, with team coordination and team conflict as dual mediators, and power legitimacy as moderator. By collecting valid questionnaires from 76 teams across 27 different types of companies in various regions, statistical analysis and hypothesis testing were conducted on the data.

Analysis on childhood fever health information seeking behaviors in online health community using a mixed-methods approach.

Objective: The primary aim of this study is to analyze health information seeking behaviors of users related to child fever within online health communities. The findings will serve as a foundation for the development of targeted interventions and resources for addressing the specific information needs related to child fever. Ultimately, this will enhance parental capabilities in managing fever in children and for improving the quality of communication between healthcare professionals and parents dealing with feverish children.

Study on the evaluation method of pilot workload in eVTOL aircraft operation.

This paper investigates the pilot control strategy and workload associated with the manned electric Vertical Take-Off and Landing (eVTOL) aircraft. This research aims to identify control strategies that are both rational and effective in reducing the pilot's workload. Although the Cooper-Harper rating (HQR, Handling Quality Rating) remains the prevalent benchmark for assessing pilot workload, its subjective nature often complicates the precise quantitative identification of the key factors influencing workload.

Entrepreneur's social identity, decision logic, and resource bootstrapping behaviors: An empirical study of the fsQCA method.

While resource bootstrapping is widely employed by novice entrepreneurs,and social identities and decision logic are studied as important antecedents of entrepreneurs' adoption of resource bootstrapping behaviors, both scholars and practitioners have but a hazy understanding on the configuration effect of entrepreneur's social identities and decision logic on resource bootstrapping behaviors. In this paper, we combined the necessary condition analysis (NCA) and fuzzy set qualitative comparative analysis (fsQCA) to explore the configuration effects of entrepreneur's social identity and decision logic on resource bootstrapping behaviors. Analysis of 411 questionnaire date acquired from novice entrepreneurs, we found that none of single antecedent condition of both the entrepreneur's social identity and decision logic constitute the necessary condition of novice entrepreneurs' high resource bootstrapping behaviors.

Cross border e-commerce development and enterprise digital technology innovation-empirical evidence from listed companies in China.

As the main form of digital trade, cross-border e-commerce plays an important role, allowing China to expand its opening-up and promote the optimal foreign trade structure. It also provides opportunities for Chinese enterprises to develop digital technology. From the perspective of the establishment of China's cross-border e-commerce comprehensive pilot zone (CBECPZ), this article uses the multi-period DID method to examine the effects of cross-border e-commerce on enterprise digital technology innovation based on listed companies in the Shanghai and Shenzhen stock markets from 2007 to 2020.

Evaluation of primary-level credit environment, indicator system and empirical analysis: A case study of credit construction in China county and district.

Townships (towns, streets) represent the foundational layer of China's administrative structure, and the quality of their credit environment is crucial for underpinning the development of a primary-level social credit system. This initiative aims to accelerate the establishment of the social credit system and cultivate a trustworthy economic and social environment. Starting from the three major fields of government, business and society, and focusing on integrity culture and credit innovation, the article proposes an innovative evaluation framework for primary-level credit environment and it can become a point of reference as a policy tool in international evaluation programs.

Credit risk assessment of small and micro enterprise based on machine learning.

Small and micro enterprises are pivotal in national economic and social development. To foster their growth, managing their credit risks scientifically is crucial. This study starts by examining the credit information of these enterprises.

Analyzing public demands on China's online government inquiry platform: A BERTopic-Based topic modeling study.

This study aims to enhance governmental decision-making by leveraging advanced topic modeling algorithms to analyze public letters on the "People Call Me" online government inquiry platform in Zhejiang Province, China. Employing advanced web scraping techniques, we collected publicly available letter data from Hangzhou City between June 2022 and May 2023. Initial descriptive statistical analyses and text mining were conducted, followed by topic modeling using the BERTopic algorithm.

Digital transformation and corporate financialization in emerging markets: Evidence from China.

Corporate financialization poses serious challenges to the development of the real economy. In the context of promoting the deep integration of the digital economy and the real economy, it is crucial to explore whether digital transformation can inhibit corporate financialization. Using data from Chinese listed companies from 2009 to 2021, we construct a fixed effects model and find that digital transformation significantly reduces the level of corporate financialization, a conclusion that still holds after a series of robustness tests such as propensity score matching and adding control variables.

Application of the extended value-belief-norm (VBN) theory to understand consumers' intention to use autonomous delivery vehicles (ADVs).

Emissions from transportation fuel vehicles are polluting the environment more than ever before. Currently, autonomous delivery vehicles (ADVs) are welcomed by logistics service providers and lots of consumers in general for their significant contribution in reducing environmental pollution and increasing delivery efficiency. However, there is a lack of in-depth research on consumers' willingness to adopt ADVs, despite the fact that ADVs are innovative delivery method in the field of last-mile delivery.

When and why are employees willing to engage in voice behavior: a power cognition perspective.

Previous studies have found that sense of power is an important predictor of employee voice; however, the mechanism underlying the relationship between these factors remains unclear. To explore this mechanism, 642 valid questionnaires from 45 enterprises were used to conduct an empirical test based on the approach-inhibition theory of power. The results showed that sense of power can affect error risk taking positively, error risk taking mediates the relationship between sense of power and employee voice; and power congruence moderates both the direct relationship between sense of power and employee voice and their indirect relationship via error risk taking.

New practice for investors in Chinese stock market: From perspective of fractionally integrated realized GARCH model.

In this paper, based on the Realized GARCH model, the fractional integration Realized GARCH model is proposed by combining long memory parameters with conditional variance and replacing the original realized measure with the realized measure obtained after daily, weekly and monthly weighting. Based on the 5-min high-frequency data of the SSE index, the fractional integration Realized GARCH model, Realized HAR GARCH model and Realized GARCH model are investigated for their fitting effect and predictive ability on market volatility, and Monte Carlo simulations are conducted from the error terms obeying normal distribution, t-distribution and chi-square distribution so as to compare the RMSE and MAE of the three types of models with respect to conditional variance. The empirical results show that the fractionally integrated Realized GARCH model is found to better capture the long-run correlation in volatility in certain intervals by comparing the theoretical and sample auto-correlation functions, while the overall predictive power of the model is better than the other two models.

The Role of Perioperative C-Reactive Protein in Predicting the Prognosis of Epithelial Ovarian Carcinoma.

Background: Increasing epidemiological evidence supported that chronic inflammatory factors might be involved in the carcinogenesis and progression of various cancers. The present study tried to investigate the prognostic value of perioperative C-reactive protein (CRP) in prognosis of patients with epithelial ovarian carcinoma (EOC) from a tertiary university teaching hospital.

Methods: The cutoff value of CRP was calculated according to receiver operating characteristic (ROC) curve.

Diagnostic model optimization method for ADHD based on brain network analysis of resting-state fMRI images and transfer learning neural network.

Attention deficit and hyperactivity disorder (ADHD) is a common inherited disease of the nervous system whose cause(s) and pathogenesis remain unclear. Currently, the diagnosis of ADHD is mainly based on clinical experience and guidelines that have laid out some diagnostic standards. Our study aimed to apply a learning-based classification method to assist the ADHD diagnosis based on high-dimensional resting-state fMRI.

Impact of nurses' emotional labour on job stress and emotional exhaustion amid COVID-19: The role of instrumental support and coaching leadership as moderators.

Aim: This study examines Pakistan nurses' emotional labour and stress in health care emergencies, specifically their emotional exhaustion and availability of support of organization and management to alleviate the effects.

Background: As COVID-19 pandemic has been declared a global outbreak and many countries have enacted medical emergencies, this has increased job demands and expected desired emotional expressions from frontline workers. Such high levels of job demand contribute to various stress reactions among employees.

The Double-Edged Sword of Underdog Expectations in Organizations in Shanghai, China: The Mediating Role of Feedback-Avoiding Behaviors and Proving Others Wrong and the Moderating Role of Regulatory Focus.

Purpose: According to the traditional view, "underdog expectations" induce self-doubt in employees, resulting in negative effects. However, a new study suggests that underdog expectations may encourage employees to work harder, resulting in positive effects. Based on regulatory focus theory, this study constructed a moderated double-mediation model to explain the "double-edged sword effect" of underdog expectations.