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This paper aims to address the gaps in current research by exploring how blockchain technology influences corporate green innovation.

This study investigates the potential of blockchain technology to stimulate the green innovation of companies using the difference-in-difference model with a panel data set of 1,803 Chinese listed companies from 2012 to 2019.

The application of blockchain significantly increases the number of green invention patents obtained by companies but has no significant impact on green utility model patents, that is, blockchain applications improve the quality rather than the quantity of green innovation. The role of blockchain in promoting green innovation is particularly pronounced in state-owned enterprises, non-heavily polluting industries and older companies. The use of blockchain technology helps reduce sales costs and boosts research and development investments, thereby encouraging green innovation. Additionally, a company’s internal control quality plays a moderating effect.

Firstly, previous research on blockchain has primarily centered on its relationship with supply chain management. This article empirically tests the impact of blockchain applications on the green innovation of companies using the DID method. Secondly, current studies mainly explore the influencing factors on green invention patents. This article examines the impact of blockchain applications on both green invention patents and green utility model patents and identifies distinct influencing effects. Finally, this article introduces the internal control mechanism of enterprises into the DID model and explores the potential impact of the quality of internal control on the relationship between blockchain and green innovation.

This study aims to uncover the mechanisms behind the marginalization of county-level public libraries.

The research surveyed 25 counties in central China, including Hubei, Chongqing, Hunan, and Guizhou provinces. Semi-structured interviews were conducted with library directors and deputy directors, focusing on main and branch library construction, cultural inclusivity, library assessment, and digital services.

Contributing factors to library marginalization were identified as economic pressure, institutional domain, longstanding issues, organizational entity, and societal misconceptions. Building on this, the study introduces the HBAC model to explain county-level public library marginalization. Considering the actual social context of these libraries, the article proposes a “3 + 1” approach to mitigate their marginalization.

The research methodology, analysis process, theoretical model, and recommendations provided could shed light on academic research and practical exploration in the field of public libraries globally.

The purpose of this paper is to study the impact of different types of textures on the friction lubrication performance of cylindrical roller bearings.

In the present study, the composite texture hydrodynamic lubrication model that takes into account the effects of surface roughness is established, and the Reynolds equation for the oil film is numerically solved using the finite difference method. The study investigates the oil film carrying capacity and maximum pressure of bearings under two different arrangements of four composite textures and conducts a comparative analysis of the oil film characteristics under various texture parameters and surface roughness levels.

When the roughness of the inner texture surface and the contact surface are equal, the bearing capacity of the composite texture is intermediate between the two textures. The impact trend of surface roughness on fluid dynamic pressure effects varies with the type of composite texture; the internal roughness of the texture affects the micro-hydrodynamic pressure action. Composite textures with different depths exhibit improved bearing capacities; elliptical cylindrical parallel and elliptical hemispherical parallel textures perform better when their area densities are similar, while other types of composite textures show enhanced bearing performance as the ratio of their area densities increases.

This paper contributes to the theoretical investigations and analyses on designing the textured rolling bearings with high lubrication performance.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-02-2024-0050

Literature has paid limited attention to narcissism’s influence on tourism. The pre-trip planning stage involves temporal psychological distance, where decision-making regarding the trip stretches over a period of time and occurs anytime during that period. Using narcissism theory and with temporal distance (6 months and 1 week before the trip) as the moderator, this study examines how tourists’ self-sacrificing self-enhancement and grandiose fantasy – grandiose narcissism facets – and travel motivations affect attraction visit intentions.

Partial least squares (PLS) analysis was applied on survey information obtained from 374 individuals (200 and 174 were six-months and one-week scenarios, respectively).

Grandiose narcissism facets affect motivations and visit intentions to various attractions at different temporal distances. The consequences of grandiose fantasy and self-sacrificing self-enhancement on motivation become evident as temporal distance decreases. At large temporal distances, grandiose fantasy positively influences social recognition motivation. At short temporal distances, it positively influences social recognition and ego and negatively influences scenery and relaxation motivations. Self-sacrificing self-enhancement positively influences socialization, exploration, scenery, relaxation and escape motivations at large temporal distances. At short temporal distances, self-sacrificing self-enhancement positively influences historical attraction visit intentions.

Grandiose narcissism facets’ influence on tourism is rarely examined. This study extends the temporal distance concept to the narcissism theory. It integrates the effects of grandiose narcissism and temporal distance on tourists’ motivations and different attraction type visit intentions and shows that motivation is temporally distance-specific.