Joint Impact Research Articles

Experimental and Numerical Investigation of Cold Joint Effects on Intermediate Concrete Moment Frame Under Cyclic Loading

This study investigates the seismic behavior of reinforced concrete flexural frames with a focus on the impact of cold joints (CJs). Three one-bay concrete frames, scaled to 2:3 according to ACI 318-19(22), were tested under axial and cyclic loading. The frames included a control frame without CJs, a frame with CJs, and a frame with CJs reinforced with fiber-reinforced polymer (FRP) sheets. Initially, the difference between the frame without CJs and the frame with CJs was examined, revealing a 10% reduction in cumulative energy dissipation, a 24% reduction in ductility, and an 18% reduction in lateral load capacity for the frame with CJs. Additionally, the stiffness in frames with CJs has decreased. Subsequently, the frame with CJs was reinforced with FRP sheets, leading to a 33% increase in cumulative energy dissipation and a 54% increase in lateral load capacity. However, the FRP sheets, while increasing load capacity, introduced brittleness, which reduced ductility. Crack patterns varied, with the frame without CJs showing vertical cracks near connections at 3% drifts, and the frame with CJs exhibiting tension and compression vertical cracks at 1% drifts. After validating the numerical models, two structural designs have been proposed to mitigate the negative effects of CJs in reinforced concrete structures. These designs are intended to improve seismic performance and enhance the structure's resistance to cyclic loads.

Enlisting toddler cooperation through structure and autonomy support: The amplifying role of suboptimal relationship mutuality.

Regular repair of normative mother-toddler conflict is required for relational health; yet, we still need improved delineation of regulation strategies that can promote child cooperation. Contemporary conceptualizations of positive parenting propose that structure and autonomy support each facilitate children's optimal engagement; however, toddler studies rarely address their joint impact and conditional moderation. This observational study examined both dimensions in predicting cooperation among 106 U.S. 30-month-olds and their primarily European-American mothers during a demanding request situation. We also assessed mutuality, an indicator of mother-child relationship quality, from two situations with minimized power differentials to explore whether it moderated associations. Regression analyses confirmed the unique and additive impact of both maternal behavioral dimensions in predicting toddler cooperation and also an interaction effect such that the positive association between maternal autonomy support and toddlers' level of cooperation was accentuated depending on the dyads' mutuality. Results suggest that maternal structure and autonomy support may serve as effective approaches for enlisting or maintaining child cooperation during hierarchical negotiations, and that suboptimal relationship mutuality magnifies toddlers' responses to maternal levels of autonomy support. Findings are likely relevant to parenting programs that advance mother-child relational health during the transition from infancy to early childhood.

Psychological hardiness, social support, and emotional labor among nurses in Iran during the COVID-19 pandemic: A cross-sectional survey study

BackgroundOur study of nurses in Tehran was conducted in June of 2020, when the lockdown from the pandemic had been implemented. Nurses had been faced with how to effectively manage their own emotion responses during patientcare. ObjectivesOur study aims to evaluate how psychological and social resources were jointly related to the use of emotional labor through surface acting and deep acting among nurses at public hospitals. DesignThe study design was a single-wave, cross-sectional self-report questionnaire survey containing validated measures where the nurses reported on their work experiences during the pandemic. SettingsThe participants came from five out of 50 public hospitals within Tehran. ParticipantsOf the 250 nurses chosen by using multi-stage randomly sampling, 224 were retained after listwise deletion of missing data and outliers. MethodThrough a survey questionnaire, participants responded to scale measures of psychological hardiness, social support, and emotional labor to investigate the joint impact of hardiness and social support on emotional labor. Their responses provided information on the (1) validity and reliability of all variables, and (2) the hypothesized structural relations, using SPSS-AMOS 22 software. ResultsChallenge and control were related to social support; coworker sympathy and supervisory support were related to surface acting; coworker sympathy was related to deep acting. Under strong support, high hardiness was most negatively related to surface acting and positively related to deep acting. ConclusionThrough coworker and supervisory support, hardiness became an effective means for nurses to regulate their own emotions during interactions to enhance patientcare.

Assessing the impact of social determinants of health on diabetes severity and management.

Adverse Social Determinants of Health (SDoH) are considered major obstacles to effective management of type-2 diabetes. This study aims to quantify the impact of SDoH factors on diabetes management outcomes. We quantified the joint impact of multiple SDoH by applying a self-control case series method-which accounts for confounding by using individuals as their own control-to electronic health record data from an academic health system in Maryland. We found a consistent increase in HbA1c levels associated with SDoH across alternative study designs. The estimated total contributions of SDoH ranged 0.014-0.065 across the alternative designs. Transportation issues demonstrated particularly significant contributions, with estimates of 0.077-0.144. When assuming SDoH's risk window to be ±45 days, for example, the total contribution was estimated to be 0.065 (95% CI [0.010, 0.120]) increase in HbA1c and the transportation issues' contribution 0.134 (95% CI [0.020, 0.249]). Our result suggests that reducing transportation barriers may be an effective SDoH intervention strategy for diabetes management; however, the clinical impact of such interventions warrants further investigation.

Joint Impact of Advection and Diffusion on the Predator–Prey Coexistence in an Open Flow

Joint Impact of Advection and Diffusion on the Predator–Prey Coexistence in an Open Flow

Gender Stereotyping and Social Norms: Exploring Theoretical Perspectives and Educational Implications

This review is a theoretical paper which examined gender stereotyping and social norms. The review was supported by feminist theory, critical theory and social psychology theory. The review utilizes a comprehensive strategy to investigate the theoretical lenses and consequences of gender stereotyping and social norms. The approach comprised of a few key stages. A survey incorporating gender stereotyping, social norms, feminist theory, critical theory and social psychology to assemble an all encompassing comprehension of the review was done. The review of gender stereotyping and social norms through critical assessment of key idea and viewpoints from feminist theory, critical theory and social psychology. The structure for revealing perplexing social peculiarities is given by the integration of feminist theory, critical theory and social psychology theory. This enlightened the basic component of inequality and injustice by considering the joint impact of gender, power and social setting. The review revealed the pervasive nature of gender stereotyping and social norms, their effect on causing inequality and injustice and the significance of promoting gender equality and social equity. In this way, the significance of interdisciplinary collaborative effort and combined actions in addressing the issue of gender stereotyping and social norms within educational setting and more extensive cultural setting. It emphasized the need for holistic approaches that will consider the broad intersection of power, ideology, and social issue in order to create gender equality and social justice both in the social and educational domain.

DISSECTING THE GENETIC BASIS OF SCHIZOPHRENIA USING FUNCTIONAL GENOMICS AND PLURIPOTENT STEM CELL MODELS

Schizophrenia (SCZ) is a highly heritable mental disorder with thousands of associated genetic variants located mostly in the noncoding space of the genome. Translating these associations into insights into the underlying pathomechanisms has been challenging because the causal variants, their mechanisms of action, their target genes and their joint impact remain largely unknown. In this talk, I will discuss our efforts to address these challenges from three complementary angles. To understand the function of individual genetic variants, I will present our work on massively parallel genetic variant screening and functional annotation in induced pluripotent stem cell (iPSC) derived neuronal cell types. In addition, I will share our recent results on leveraging large cohorts of iPSC derived neurons from deeply phenotyped patients as in vitro models of polygenicity. In this context, we sought to translate the effects of highly heterogenous polygenic risk across individuals into common molecular mechanisms underlying the etiology in SCZ, identifying several molecular, cellular and circuit level endophenotypes as points of convergence. Lastly, I will discuss our newly developed strategies to link these molecular and cellular alterations to patient level intermediate phenotypes such as aberrant EEG patterns and cognitive impairment.

Digital Transformation, Supply Chain Finance, and Enterprise Innovation

This study uses Chinese A-share listed companies in Shanghai and Shenzhen from 2007 to 2022 as samples to explore the joint impact of digital transformation (DT) and supply chain finance (SCF) on corporate innovation. Results reveal that DT can significantly improve enterprise innovation while promoting the improvement of innovation quantity and quality, with research and development investment acting as a mediating factor. This study's analysis of the impact of SCF reveals that SCF can also promote enterprise innovation by improving synergies and serving as a substitute for DT.

Using a multiphysics coupling-oriented flood modelling approach to assess urban flooding under various regulation scenarios combined with rainstorms and tidal effects

Climate change and rapid urbanisation have intensified urban flooding. Flood models constructed using hydrological and hydrodynamic approaches are crucial tools for simulating and regulating urban flooding processes. Urban flooding arises from the interplay of various physical processes in urban water systems, influenced by heterogeneous urban surfaces, underground structures, and intricate river networks influencing surface flow, which must be considered in flood models. For coastal cities with intricate drainage systems, the disasters of combined rainstorms and tidal flooding can be mitigated through river scheduling and real-time control of hydraulic structures. However, a lack of research on the effectiveness of flood regulations limits the application of flood models. This study proposes a flood modelling approach oriented towards the coupling of multiphysics processes, achieving a comprehensive simulation and regulation of the flood process. A surface flood control model was created by coupling hydrological and hydrodynamic processes using the Storm Water Management Model and the orthogonal storage cell model, enabled by data exchange synchronisation technology. Subsequently, the model’s accuracy was validated using observed rainstorm events, identifying drainage system overflows and land surface inundation. Finally, the developed model was applied to analyse the enhancing effect of tides on rainstorm-induced flooding and the impact of various control scenarios. This study offers theoretical direction for large-scale urban flood modelling and model development, offering significant references for revisiting urban planning and formulating flood prevention strategies under the joint impact of rainstorms and tides.

Evaluating the impact of multiple uncertainty shocks on China's airline stocks volatility: A novel joint quantile perspective

This study proposes a new joint quantile impulse response function (jQIRF) and applies that function to investigate the impact of multiple uncertainty shocks on the volatility of China's airline industry. The jQIRF not only allows one to examine the joint impact of multiple factors on the target variable; the impact of these factors on specific quantiles or states of the target variable can also be examined. The empirical results show that, compared to traditional IRF, the proposed jQIRF successfully reveals the positive impact of multiple uncertainties on the volatility of the airline industry and obtains a narrower confidence interval for IRF. The jQIRF also successfully corrects the overestimation bias caused by simple aggregation in generalized IRF. In addition, empirical results at different quantiles show the existence of a “leverage effect” in the impact of uncertainty on airline volatility. This means that, in more volatile market environments, the positive joint impact of uncertainties is stronger. However, research that has focused on individual airline stocks indicates that the airlines appear to be capable of implementing measures to stabilize stock volatility, thereby mitigating the negative impact of uncertainties on the airline industry. Overall, the proposed jQIRF and empirical conclusions in this paper help to more accurately assess the impact of multiple factors on the airline industry from a joint perspective. This ability is beneficial for both policymakers and investors.

Религия и национализм

The article analyzes the similarities and differences of ethnic and religious identities, their mutual influence and cases of joint impact on society. The author explores the role of these identities in the formation of the nation state. He also examines the ethnic and religious factor in heterogeneous societies, which are characterized by the presence of a significant number of diverse cultural groups united under one government. Russia also belongs to such societies. According to the author, in the current conditions in Russia, ethnic and religious identities cannot be used as a factor in nation building. The Russian form of government is more consistent with the imperial type. States of this type see the meaning and justification of their existence in protecting their constituent peoples, maintaining peace and order among them, and ensuring their development. Therefore, policy in the sphere of managing cultural and religious diversity in Russia cannot be built upon the model inherent in nation states, because the very term “nation” and nation building practices are associated with the division of people into “us” and “them”, unification, and suppression of minorities. Nationalism in Russia has always been and remains a risky project, fraught with the disintegration of the country into several dozen ethno-national states with the prospect of a military clash between them. The research conducted by the author shows that nationalism is most often not associated with religion, acting as secular worldview. In turn, religious traditions do not need national consolidation. The experience of the existence of the church in states and cultures of different types indicates that no ethnic culture or identity of a nation has enduring significance from a religious viewpoint.

Joint Impact of Market Volatility and Cryptocurrency Holdings on Corporate Liquidity: A Comparative Analysis of Cryptocurrency Exchanges and Other Firms

This study examines the impact of market volatility and cryptocurrency holdings on corporate liquidity, with a particular focus on the differences between cryptocurrency exchanges and other businesses. The analysis is based on 181 firm-year observations from 2017 to 2022, using Bitcoin volatility, VIX, and VKOSPI as indicators of market volatility. Ordinary Least Squares (OLS) and robust regression analyses are employed to assess the relationships between these variables. It is first noted that, albeit insignificant, market volatility has a detrimental influence on company liquidity. The positive correlation for cryptocurrency exchanges, however, suggests that cryptocurrency exchanges could potentially leverage market volatility as a strategic advantage. Additionally, the study shows that cryptocurrency holdings enhance corporate liquidity, with a stronger association observed in cryptocurrency exchanges. The analysis also incorporates lagged variables to capture delayed effects, confirming that cryptocurrency holdings exert both immediate and delayed positive impacts on liquidity, likely due to effective strategic management practices within exchanges.

Complex nexus: Economic development, rural-to-urban migration, and transition to adulthood in China

Transition to adulthood in low- and middle-come countries (LMIC) has increasingly been diversified and individualized. Economic development and migration are often cited as reasons for diversification but have been analytically examined interactively. To examine the complex linkages between development, migration, and transition to adulthood, we use China data to cover a decade when it has experienced rapid economic development, a large flow of rural-to-urban migration, and changes in the transition to adulthood. Applying the latent class analysis and multinomial logistic regression on the Chinese General Social Survey 2008 and 2017, we obtain three main findings. First, economic development increases the diversification of the transition to adulthood. Second, rural-to-urban migration has a greater impact on the postponement than on other pathways. Third, the joint impact of economic development and migration is not evident: the change do not differ between men and women as well as young adults of different migration experience. These findings collectively imply signs of the diversification of transition to adulthood in China, but also entail the individualization behind it.

A novel framework for assessing the joint and relative impacts of precipitation and groundwater on ecological drought processes in Northwest China

AbstractEcological drought has emerged as a critical research topic within eco‐hydrology, driven by the increased drought risk associated with global warming. This study aims to unravel the hydrological processes driving ecological drought in Northwest China by (1) constructing standardized indices for precipitation, groundwater storage anomaly, and ecological water deficit to detect variation across different hydrological components; (2) developing a framework to assess the joint and relative impacts of precipitation and groundwater variations on ecological drought; and (3) identifying the primary hydrological drivers of ecological drought across different regions. The results indicate that the joint impact of precipitation and groundwater on ecological drought variation dominates approximately 60% of the area, primarily in arid and semi‐arid regions. The average contribution of this joint impact to the alleviation of ecological drought ranges between 0.26 and 0.43 across all seasons. Notably, groundwater scarcity, rather than precipitation variation, is the primary driver of ecological drought in regions such as southern Shaanxi, southeastern Gansu, and southern Qinghai, accounting for 12.7% to 21.8% of the total area. These insights into the complex hydrological processes underlying ecological drought have significant implications for water resource management and ecosystem conservation in drought‐prone regions. This research provides valuable information for mitigating drought impacts and protecting vulnerable ecosystems in Northwest China and similar regions worldwide.

How digital finance and green finance can synergize to improve urban energy use efficiency? New evidence from China

Accelerating the greening and digital transformation of the energy industry to enhance energy efficiency is pivotal for constructing a new energy system. The high-quality development of the energy sector necessitates the support of emerging financial forces. This study utilizes panel data from 279 prefecture-level cities spanning from 2011 to 2021, employing mediation and moderation models to verify the synergistic impact of digital finance and green finance on energy efficiency. Findings indicate that the synergy between digital finance and green finance enhances energy efficiency. Mechanism analysis reveals that this synergy promotes energy efficiency through advancements in green and digital technology innovations. Climate policy uncertainty positively moderates the process by which digital finance and green finance synergistically improve energy efficiency, enhancing the intermediary effects of digital and green technologies. Environmental regulations similarly exert positive moderation on the joint impact of digital finance and green finance on energy efficiency, yet their effects vary heterogeneously, with market-based environmental regulatory tools demonstrating superior policy outcomes. Moreover, the impact of the synergy between digital finance and green finance on energy efficiency exhibits heterogeneity across geographic regions, development timelines, resource endowments, and policy trial effects.

PENGARUH INTELLECTUAL CAPITAL, INVESTMENT OPPORTUNITY SET, DAN KEBIJAKAN DIVIDEN TERHADAP NILAI PERUSAHAAN

The purpose of this study is to ascertain intellectual capital, investment opportunity set, also dividend policy on firm value in food and beverage (F&B) sub-sector manufacturing companies registered on the Indonesia Stock Exchange in 2019-2022. The object of this study is manufacturing companies in the F&B sub-sector registered on the Indonesia Stock Exchange in 2019-2022. The sample untilized in this purchase was 18 companies with a research period of 4 years with 72 data processed using purposive sampling techniques. This study employs descriptive statistical analysis methods, also panel data regression analysis. From the outcomes of this study, it was gained that these three variables have a joint impact on the company's value. Meanwhile, intellectual capita, also dividend policies have a negative impact on each. Meanwhile, the investment opportunity set has a positive impact on the company's value

Corporate social initiatives and wealth creation for firms-an empirical examination

Purpose This study aims to examine whether social initiatives adopted by firms lead to improved financial performance. The authors analyse the impact of different elements of social initiatives on wealth creation for firms in terms of operating and market performance. Design/methodology/approach The study is based on the social initiative scores of over 4,500 firms collected from Thomson Reuters' ESG database. The study uses two-stage least squares (2SLS) to analyse the relationship between social initiatives and firm performance. Findings Profitable, mature, capital intensive and firms with high sales growth rate tend to invest more in social initiatives. Firms with high agency costs invest in social initiatives for workforce efficiency, maintaining human rights and product responsibility. The study documents evidence that social investments are value creating mechanism for firms which leads to improved financial performance in terms of operating and stock market performance. Firms with high dividend intensity invest in social initiatives for workforce welfare and human rights initiatives. Investment in employee well-being and community initiatives results in intangible benefits such as improved stock market valuation. Practical implications The research model has not considered the impact of intervening variables to understand the relationship between corporate social performance and corporate financial performance. Social implications Firms ought to recognize that social investment is beneficial in terms of value creation of firms as stock market perceive such investments favourably. Firms must focus more on community development initiatives and workforce initiatives for the value creation of firms compared to investments directed towards human rights initiatives and product responsibility initiatives. Originality/value This study focusses exclusively on the social dimension of the CSR activities. The authors examine the impact of social welfare scores on firm performance by analysing the valuation effects on scores representing workforce, human rights, community and product responsibility. Moreover, the paper also examines the impact of a new dimension of product responsibility on firm performance. They also focus on both aspects of financial performance in terms of operating performance (proxied by ROE) and the joint impact of both operating and market performance (proxied by Tobin’s Q). This paper contributes to the research on the linkage of social performance to financial performance by observing that firms with high agency cost characteristics tend to invest in social initiatives for work force efficiency, maintaining human rights and product responsibility.

Effect of joint behaviors on the load-carrying capacity of single-layer reticulated dome

The majority of previous studies have primarily focused on the impact of nodal deviation or joint’s strong axis bending stiffness of semi-rigid single-layer reticulated shell, ignoring the effect of other kinds of joint stiffness and its interaction with joint size and nodal deviation. Therefore, the single-layer reticulated dome considering all kinds of joint stiffness and joint size is established initially. Subsequently, a comprehensive investigation is conducted to analyze the effect of all types of joint stiffness of improved bolt-column (IBC) joints, as well as joint size and nodl deviation, on the load-carrying capacity of dome. Finally, the coupling effect among these factors on the mechanical performance of dome is also determined. The main conclusions obtained are presented as follows: (I) the axial stiffness of the IBC joint significantly influences the load-carrying capacity of single-layer reticulated dome, resulting in an average decline ratio of 27 %; however, the other types of joint stiffness have a negligible impact, with an average effect of only 1 %. Moreover, the limit load of the dome considering practical stiffness of IBC joint can achieve the 61 % of that of rigid dome; (II) rigidly joined domes with nodal deviations of S/300, S/600, S/900, S/1200 and S/1500 exhibit decline ratios of 0.57, 0.47, 0.41, 0.37 and 0.34, respectively, in load-carrying capacity compared to perfect domes. Moreover, when considering the coupling effect of joint stiffness, joint size and nodal deviation on the load-carrying capacity of the domes, these nodal deviations affect the capacity by 0.65, 0.57, 0.52, 0.49 and 0.46.

Exploring the Sequential Relationship of a Leader’s Collective Leadership Style and the Team’s Shared Leadership: The Moderating Role of Gender

In this study, we explore the relationship between a team’s shared leadership and a formal leader’s collective leadership style, and their joint impact on team performance. We draw upon identity theory to examine how shared leadership in the team influences formal leaders’ leadership identity claims. We also examine how a formal leader’s use of a collective leadership style facilitates the claiming and granting of leadership identities by other team members. We also draw on role congruity theory and the social categorization perspective to examine the moderating role of gender, a critical component of identity. Our findings suggest that there is a mutual relationship between the formal leader’s collective leadership style and the team’s shared leadership, and that they jointly influence team performance, but these effects are contingent on the formal leader’s gender and the gender composition of the team. This study addresses several calls in the leadership field for examining the more nuanced ways shared leadership and the actions of a formal leader may influence each other, as well as the contextual conditions in which shared leadership is enacted.

Impact of carbon quota policy on clean energy investment strategies with financial constraints

The actions of electricity enterprises investing in clean energy are mainly affected by national policies and financial constraints. However, their joint impact on corporate decision-making for clean energy investment (CEI) is unclear. This study develops a game model to study the impact of carbon quota policies on corporate decision-making under financial constraints, including the grandfathering quota policy and benchmarking quota policy. A series of interesting conclusions were obtained. (1) With the goal of CEI, irrespective of financial constraints, the benchmarking quota policy is the best option. (2) With total carbon emissions (TCEs), consumer surplus, or enterprise profit as the goal, financial constraints will have an impact on optimal carbon quota policies. (3) In addition to TCEs, an increase in the financial constraints cap will enhance CEI, consumer surplus, and enterprise profit. These conclusions provide new insights for government policy-making and business decision-making, requiring comprehensive consideration of financial constraints.