Does paradoxical leadership predict employee job performance in hospitality? A sequential mediation of harmonious work passion and innovative work behavior

Purpose – Drawing insights from a self-determination perspective, this study aims to investigate the impact of paradoxical leadership (PL) on job performance among hospitality employees. It also explores harmonious work passion (HWP) and innovative work behavior (IWB) as sequential mediators in this direct association. Design/methodology/approach – A self-report structured questionnaire was used to collect survey data from 298 employees working in Indian four-, five- and five-star luxury hotels. To test the hypothesized model, partial least squares-structural equation modeling (PLS-SEM) was used. Findings – This study found PL positively influences HWP, IWB and job performance of hospitality employees. Also, the positive association between PL and employee job performance is significantly mediated by HWP and IWB, individually as well as sequentially. Practical implications – Adopting PL in hotels can significantly boost employees’ HWP and IWB, resulting in enhanced job performance. This leadership style empowers employees to navigate conflicting demands, fostering creativity and adaptability. Consequently, hotels can benefit from a more engaged workforce, improved service delivery and a competitive edge. Originality/value – This research adds to the limited literature on PL in the hospitality sector by highlighting its impact on employee behavior and performance outcomes. To the authors’ knowledge, this is the first study to empirically link PL with HWP, IWB and job performance in a sequential mediation model. It uncovers the “black box” of mechanisms connecting PL to work outcomes from emotional and cognitive perspectives.

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Cruise ship safety measures and their in fl uence on passenger sense of security and purchase intention

Purpose – The purpose of this study is to investigate whether customers perceive current cruise ship safety measures provided as meeting a sense of security and their influence on purchase intention. Three types of potential risks associated with cruise lines evaluated were external/internal attacks, malfunctions/accidents and onboard medical/health issues. Design/methodology/approach – A survey used 12 safety measures questions to examine how cruise ships handle the above three risks, three questions to measure a sense of security and three questions to measure purchase intention. A seven-point Likert scale was applied. Convenience sampling was used. There were 163 valid responses collected. Findings – All three safety measures evaluated in this study had a direct and positive effect on passengers’ Sense of Security. Also, Safety Measure (SM) 2 and Sense of Security had direct and positive effects on purchase intention. Finally, SM1 and SM3 have only indirect impacts on Purchase Intentions via Sense of Security. Research limitations/implications – Because of the small sample size and the convenience sampling method, the results of this study may lack generalizability. Practical implications – Cruise managers should be aware that merely providing safety measures that are regulated by guidelines is not sufficient, and passengers must personally see and experience safety measures. Originality/value – This study evaluated not only customers’ perceptions of safety measures on a cruise ship but also their impact on a sense of security and how that played a moderating role in purchase intention.

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Ultrafast High-Capacity Calcium-Ion Battery Based on Efficient Calciation into the Two-Dimensional Structure of a Cu 3 (2,3,6,7,10,11-hexahydroxytriphenylene) 2 Cathode

: Calcium-ion batteries (CIBs) are promising energy storage systems because of their low cost and high theoretical volumetric energy density. However, calcium ion (Ca2+), a divalent cation with a larger ionic radius than lithium ion, forms strong electrostatic interactions with the divalent O2−anion in conventional metal-oxide-based cathode active materials, resulting in capacities less than 55% of the theoretical values and poor rate performance. In this study, Cu3(HHTP)2 (HHTP: 2,3,6,7,10,11hexahydroxytriphenylene), a two-dimensional metal-organic framework with monovalent O−anions included in its crystal structure, is used as a cathode active material for CIBs, and its performance, as well as its calciation and decalciation mechanisms, is investigated. Cu3(H HTP)2 has a high initial capacity equal to 86% of the theoretical value and excellent rate performance owing to sufficient redox reaction and smooth calciation, respectively. However, it exhibits poor cycle performance because of insufficient decalciation during charging, which results from electrostatic interactions between intercalated Ca2+ ions with O−anions in the narrower interlayer spacing of Cu3(HHTP)2 after the first discharge. These findings provide valuable insights for improving the performance of cathode active materials for CIBs. KEYWORDS: calcium-ion battery, metal-organic framework, monovalent anion, cathode active material, two-dimensional crystal structure, calciation, de-calciation ■INTRODUCTION

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Deep Learning-Aided Lung Cancer Detection and

Lung cancer remains one of the most lethal types of cancer globally, emphasizing the necessity for early and accurate detection. This study suggests a deep learning-based classification model that uses the pretrained Xception model to distinguish between four different groups: normal lung tissue, squamous cell carcinoma, large cell carcinoma, and adenocarcinoma. We apply chest CT scan images of a chosen dataset meticulously to fine-tune the model utilizing image data improved by real-time preprocessing techniques. The model has a high accuracy rate, signifying its potential use in supporting clinical diagnosis. Grad-CAM (Gradient-weighted Class Activation Mapping) is used to map class-specific activation zones in order to improve explainability, which supports radiological diagnosis and makes explainable prediction poss ible. Our approach provides a promising AI-based solution to screen lung cancer with high accuracy and clinical interpretability.

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Implementation of Obstetric Nursing Residency Programs in Brazil Using the Consolidated Framework for Implementation Research

Implementing evidence-based training for nurses is crucial for improving maternal health, especially in low- and middleincome countries. In Brazil, the Obstetric Nursing Residency Program of Pernambuco (ONRPP) was established to pro­ mote humanized childbirth care by developing the nursing workforce. This study used the Consolidated Framework for Implementation Research (CFIR) to analyze key factors affecting the program’s implementation. We conducted a qualita­ tive, multiple-case study at two reference hospitals in Pernambuco. Data were collected through document analysis, semistructured interviews with managers and preceptors, and a focus group with residents. We performed a directed content analysis based on the five domains and 39 constructs of the CFIR. D ata were coded and synthesized using MAXQDA to assess the valence and strength of each construct. Our findings revealed several facilitators, including the strong scientific basis of the training, high resident engagement, and a flexible program structure. However, we also identified significant barriers: lack of infrastructure and funding, weak inter-institutional communication, resistance from some clinical staff, and limited opportunities for feedback. Although residents reported increased autonomy and alignment with evidencebased practices, their role remained ambiguous for some staff. The ONRPP is a promising model for strengthening obstetric nursing and humanized care in Brazil. However, its long-term success requires strategic investment in leadership, communication, and organizational learning. This study contributes to the use of implementation frameworks like CFIR in nursing education and highlights their importance for guiding future scale-up strategies.

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C URRENT O PINION Spontaneous breathing trials: how and for how long?

(Abstract not found)

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(Abstract not found)

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