The study tested a celebrity endorsement model to investigate the direct and indirect influences of celebrity attachment on brand loyalty across two culturally distinct countries: The United Kingdom and Turkiye. The survey was completed by 626 respondents and the data were analyzed using structural equation modeling. The findings show that celebrity attachment positively influences actual self‐congruence, ideal self‐congruence, brand quality, and brand attachment. Brand attachment mediates the effect of celebrity attachment on brand loyalty. Furthermore, the effectiveness of the celebrity endorsement process differs between British and Turkish consumers. Our research complements the meaning transfer model as it confirms that the celebrity endorsement process is influenced by two attachment objects: celebrities and brands. A follow‐up study with text mining analysis of the consumer comments about the product reviews posted by social media influencers (SMIs) supported the validity of the celebrity endorsement model. Practitioners should consider the consumer's emotional and cognitive bonding with celebrities, and brands to enhance the effectiveness of the celebrity endorsement process. The more consumers are attached to celebrities (or SMIs) and brands, the more loyal they become to the latter.

The European Integrated Data Archive (EIDA) is the infrastructure that provides access to the seismic-waveform archives collected by European agencies. This distributed system is managed by Observatories and Research Facilities for European Seismology. EIDA provides seamless access to seismic data from 12 data archives across Europe by means of standard services, exposing data on behalf of hundreds of network operators and research organizations. More than 12,000 stations from permanent and temporary networks equipped with seismometers, accelerometers, pressure sensors, and other sensors are accessible through the EIDA federated services. A growing user base currently counting around 3000 unique users per year has been requesting data and using EIDA services. The EIDA system is designed to scale up to support additional new services, data types, and nodes. Data holdings, services, and user numbers have grown substantially since the establishment of EIDA in 2013. EIDA is currently active in developing suitable data management approaches for new emerging technologies (e.g., distributed acoustic sensing) and challenges related to big datasets. This article reviews the evolution of EIDA, the current data holdings, and service portfolio, and gives an outlook on the current developments and the future envisaged challenges.

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As the earliest institute in Turkey dedicated to locating, recording, and archiving earthquakes in the region, the Kandilli Observatory and Earthquake Research Institute (KOERI) has a long history in seismic observation, which dates back to the installation of its first seismometers soon after the devastating Istanbul earthquake of 10 July 1894. For over a century, since the deployment of its first seismometer, the KOERI seismic network has grown steadily in time. In this article, we present the KOERI seismic network facilities as a data center for the seismological community, providing data and services through the European Integrated Data Archive (EIDA) and the Rapid Raw Strong-Motion (RRSM) database, both integrated in the Observatories and Research Facilities for European Seismology (ORFEUS). The objective of this article is to provide an overview of the KOERI seismic services within ORFEUS and to introduce some of the procedures that allow to check the health of the seismic network and the quality of the data recorded at KOERI seismic stations, which are shared through EIDA and RRSM.