Search results

Vision transformers (ViT) detectors excel in processing natural images. However, when processing remote sensing images (RSIs), ViT methods generally exhibit inferior accuracy compared to approaches based on convolutional neural networks (CNNs). Recently, researchers have proposed various structural optimization strategies to enhance the performance of ViT detectors, but the progress has been insignificant. We contend that the frequent scarcity of RSI samples is the primary cause of this problem, and model modifications alone cannot solve it.

To address this, we introduce a faster RCNN-based approach, termed QAGA-Net, which significantly enhances the performance of ViT detectors in RSI recognition. Initially, we propose a novel quantitative augmentation learning (QAL) strategy to address the sparse data distribution in RSIs. This strategy is integrated as the QAL module, a plug-and-play component active exclusively during the model’s training phase. Subsequently, we enhanced the feature pyramid network (FPN) by introducing two efficient modules: a global attention (GA) module to model long-range feature dependencies and enhance multi-scale information fusion, and an efficient pooling (EP) module to optimize the model’s capability to understand both high and low frequency information. Importantly, QAGA-Net has a compact model size and achieves a balance between computational efficiency and accuracy.

We verified the performance of QAGA-Net by using two different efficient ViT models as the detector’s backbone. Extensive experiments on the NWPU-10 and DIOR20 datasets demonstrate that QAGA-Net achieves superior accuracy compared to 23 other ViT or CNN methods in the literature. Specifically, QAGA-Net shows an increase in mAP by 2.1% or 2.6% on the challenging DIOR20 dataset when compared to the top-ranked CNN or ViT detectors, respectively.

This paper highlights the impact of sparse data distribution on ViT detection performance. To address this, we introduce a fundamentally data-driven approach: the QAL module. Additionally, we introduced two efficient modules to enhance the performance of FPN. More importantly, our strategy has the potential to collaborate with other ViT detectors, as the proposed method does not require any structural modifications to the ViT backbone.

For the purpose of saving nickel, this study aims to develop new duplex stainless steel cored wires suitable for wire arc additive manufacturing (WAAM) with the addition of nitrogen.

The effect of nitrogen content on the microstructure and mechanical properties of the thin-walled deposits is investigated in detail.

The microstructure of thin-walled deposits mainly consists of austenite, ferrite and secondary austenite. With increasing nitrogen content, the austenite in the deposited metals increases. The austenite proportion in the bottom region is more than that in the top region of the deposited metals. The χ phase is randomly distributed at the grain boundaries and within ferrite. The σ phase is mainly precipitated at ferrite and austenite grain boundaries. With increasing nitrogen content, the tensile strength of the deposited metals increases, but the impact toughness of the deposited metals deteriorates.

This study proposes new duplex stainless steel cored wires for WAAM, which realizes the objective of saving nickel.

Healthcare is a service industry where fulfilling the needs of patients (customers) is challenging. Various factors, including cost, system complexity, staffing behaviours and technological advances, play vital roles. Drawing upon social exchange theory, this study seeks to determine how paternalistic leadership (authoritarianism, benevolence and morality) influences employee service innovative behaviour and counterproductive work behaviour via perceived supervisor support in the healthcare sector. Additionally, the study investigates the role of the public service motivation of individuals as a moderating factor in this relationship.

A pilot study and a main study were conducted to test the hypotheses. We collected data from healthcare professionals in Pakistan’s large public, private and semi-government hospitals. We applied bootstrapping with 5,000 replications and structural equation modelling to analyse the data.

Results indicate that authoritarianism was negatively associated with service innovative behaviour, whereas benevolent and moral behaviours were positively associated with service innovative behaviour via perceived supervisor support (mediation). Our findings shed light on the moderating role of public service motivation.

This empirical quantitative study has several theoretical and practical implications. Findings of our study provide evidence that a paternalistic leadership style can influence both positive (service innovative behaviour) and negative (counterproductive working behaviour) working behaviours simultaneously via perceived supervisor support at an individual level in the service (healthcare) industry. This study also highlights the moderating role of public service motivation as an individual motivation factor.

This paper aims to investigate how perpetrators who engage in unethical pro-organizational behavior (UPB) feel and respond in the aftermath of such behavior.

This paper used a two-wave time-lagged design and collected data from 260 full-time employees working in different industries in China.

The results indicated that UPB was negatively and indirectly associated with internal whistle-blowing through shame. Perceived moral leadership weakened the effect of shame on internal whistle-blowing.

Based on affective events theory, this paper explored an integrated behavior-emotion-behavior sequence. This paper proposed that the negative emotion, shame, evoked by UPB subsequently influences the extent to which UPB perpetrators engage in internal whistle-blowing.

Drawing upon social exchange theory, this study aims to assess whether paternalistic leadership style (authoritarianism, benevolence and morality) influences employee in-role service behaviour and extra-role service behaviour, particularly patient-oriented organisational citizenship behaviour via a dual mediation mechanism, i.e. perceived supervisor support and perceived organisational support.

The data were gathered from doctors and nurses working in Pakistan’s public, private and semi-government hospitals. We used SPSS and AMOS 27 to run structural equation modelling.

Results revealed that authoritarianism was negatively associated with in-role service behaviour and patient-oriented organisational citizenship behaviour through perceived supervisor support and perceived organisational support. In contrast, benevolent and moral behaviours of leaders were positively associated with in-role service behaviour via perceived supervisor support and perceived organisational support. However, perceived supervisor support did not mediate the relations between paternalistic leadership dimensions and patient-oriented organisational citizenship behaviour.

Our research advances the paternalistic leadership literature concerning paternalistic leadership and employees’ service behaviours through dual mediation mechanisms and in a relatively understudied sector and national context.

This study aims to explore the associations between leadership styles (i.e. transformational and ethical) and innovative work behavior within higher education institutions (HEIs), additionally investigating the mediating role of work engagement and the moderating role of psychological empowerment.

The basis of this study rested upon adopting a cross-sectional research framework. The data were acquired from a sample comprising 825 academic staff and 275 leaders across 226 HEIs in China. Employing a quantitative methodology, the researchers used AMOS version 26.0 and SPSS version 22.0 for statistical analysis.

The results indicated that leadership styles (i.e. transformational and ethical) positively affected innovative work behavior, both directly and indirectly (via work engagement). Also, psychological empowerment moderated the linkage between leadership styles and innovative work behavior but not the association between work engagement and innovative work behavior.

Despite some existing literature having discussed the correlation between leadership styles and innovative work behavior, there appears to be a conspicuous dearth of research endeavoring to explore the mediator (i.e. work engagement) and the moderator (i.e. psychological empowerment) within the above nexus, especially in the context of HEIs. Thus, this study can be considered original, introducing novel perspectives and substantial contributions to the management literature on HEIs. In addition, it offers insights for organizational managers.

This study aims to investigate the relationship between extrinsic rewards and employee creativity through the intervening mechanism of perceived organisational support (POS) and work engagement. The moderating role of intrinsic motivation on the relationship between work engagement and employee creativity is also examined.

The authors report the results of a survey completed by 372 respondents employed in the United Arab Emirates. Structural equation modelling was applied to test the hypothesised relationships.

The main findings are that extrinsic rewards influence employee creativity through POS and work engagement. Moreover, the effect of work engagement on employee creativity is moderated by intrinsic motivation. This model effect is stronger for employees with high intrinsic motivation.

Convenience sampling was used, which limits its generalisability. Also, the data were collected through a cross-sectional survey at one point in time.

Managers should consider provision of extrinsic rewards and support to increase employee motivation and engagement in creative work.

This study contributes to the limited amount of available literature on creativity and rewards adding to our knowledge about the influence of extrinsic rewards on creativity considered in the presence of intrinsic motivation. Theoretical and practical recommendations are discussed.

This paper aims to how ethical leadership influences innovative behavior and employee motivation, focusing on the mediating role of corporate social responsibility within the framework of social exchange theory (SET).

Data were collected from 341 bank employees using convenience sampling, and hypotheses were rigorously tested with SPSS 22.

The results highlight the significant impact of ethical leadership on enhancing both employee innovation and motivation, with corporate social responsibility initiatives playing a crucial mediating role.

Drawing on SET, the research illustrates how ethical leadership fosters a reciprocal exchange environment, leading to deeper employee engagement and innovation driven by positive corporate social responsibility practices. By advancing theoretical understanding and providing practical insights, this study offers valuable guidance for organizations aiming to leverage ethical leadership and corporate social responsibility to cultivate a workforce that is both innovative and motivated.

Responding to the lack of research on work engagement and burnout of professionals in the communication industries, this work’s main objective is to evaluate the effect of psychosocial working conditions (meaningful work, trust and recognition) on work engagement and burnout. Additionally, the mediating role of employee voice is tested.

The study takes a quantitative approach. A sample of 3,386 European workers in the communication industries was taken from the 2021 European Working Conditions Survey. The measurement of the main concepts is based on the variables available in the database above. The hypotheses were tested using the partial least squares method.

The results reveal that all psychosocial working conditions (meaningful work, trust and recognition) contribute to promoting work engagement and reducing burnout. Furthermore, employee voice is a mediator of the relationship between psychosocial working conditions, work engagement and burnout, although the presence of employee voice reduces the robustness of those relationships.

These results present relevant practical implications for managing workers in the communication industries, namely some clues to promote positive employee outcomes through the management of psychosocial working conditions.

This study examines the underexplored topic of work engagement and burnout in professionals in the communication industries as well as the relevance of psychological working conditions and employee voice to those outcomes. Furthermore, this study provides insightful information that is particularly useful to the European setting, where cultural aspects and working conditions may vary greatly from those in other parts of the world.

This study aims to investigate the role of corporate social responsibility (CSR) in reducing employees’ negative emotions. Based on social information processing, a new conceptual framework was developed and tested in the Indian context.

Cross-sectional design was used in the study. A total of 240 managers of financial institutions were surveyed through a self-administered questionnaire, and the responses were collected using a convenience sampling technique.

The findings indicated that CSR induces compassion and reduces employees’ negative emotions. Contrary to expectations, compassion did not emerge as a mediator in the relationship between CSR and negative emotions.

The findings contribute to the literature by scrutinizing the persuading influence of CSR on employees’ negative emotions directly and indirectly through compassion. Furthermore, this study also tested the moderating effects of positive emotion in the relationship between CSR and negative emotions. The linkage between CSR and negative emotions was established by introducing the social information processing mechanism, adding another novelty to the literature.