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This study aims to examine the joint effect of accounting background and cross-membership of Islamic Supervisory Board (ISB) members on bank investment efficiency.

This study uses data collected from 36 Islamic banks across 15 countries globally, spanning the period from 2012 to 2021. This research uses an ordinary least squares regression and a comprehensive set of endogeneity and robustness tests.

The findings show a negative relationship between the accounting background of ISB members and investment efficiency. However, when ISB members with accounting backgrounds also have ISB cross-memberships, the banks exhibit high investment efficiency. These results suggest that ISB cross-membership plays a crucial role in facilitating Islamic banks’ access to timely information on investment opportunities. This enables ISB members with accounting expertise to thoroughly assess the benefits and risks associated with their investment prospects. These findings imply that ISB members with accounting backgrounds and cross-memberships have greater motivation and thoughtful considerations for making better investment decisions. Consequently, Islamic banks are better positioned to undertake high profitable investment projects, which enhance their investment efficiency.

The current study holds immense value for Islamic bank management in their selection of ISB members who possess an accounting background and cross-membership.

This study delves into a comprehensive investigation of the proficiency, underlying principles and unique characteristics exhibited by ISB members with an accounting background. Moreover, this study acknowledges the burgeoning global prominence of Islamic banks.

This paper aims to study the relationship between the ball grid array (BGA) flip-chip underfilling process parameter and its void formation region.

A set of top-down scanning acoustic microscope images of BGA underfill is collected and void labelled. The labelled images are trained with a convolutional neural network model, and the performance is evaluated. The model is tested with new images, and the void area with its region is analysed with its dispensing parameter.

All findings were well-validated with reference to the past experimental results regarding dispensing parameters and their quantitative regional formation. As the BGA is non-uniform, 85% of the test samples have void(s) formed in the emptier region. Furthermore, the highest rating factor, valve dispensing pressure with a Gini index of 0.219 and U-type dispensing pattern set of parameters generally form a lower void percentage within the underfilling, although its consistency is difficult to maintain.

This study enabled manufacturers to forecast the void regional formation from its filling parameters and array pattern. The filling pressure, dispensing pattern and BGA relations could provide qualitative insights to understand the void formation region in a flip-chip, enabling the prompt to formulate countermeasures to optimise voiding in a specific area in the underfill.

The void regional formation in a flip-chip underfilling process can be explained quantitatively with indicative parameters such as valve pressure, dispensing pattern and BGA arrangement.

This paper aims to examine the impact of Zakat avoidance on firm value and investigates how board characteristics moderate this relationship within the context of Saudi Arabia, a Muslim nation.

Using panel data from 2009 to 2020, encompassing 78 nonfinancial firms listed on the Saudi Stock Exchange, this study constructs an enhanced measure of Zakat avoidance that integrates insights from tax avoidance research, Shariah principles and the regulations of the Zakat, Tax and Customs Authority. This research uses empirical techniques, including panel data regressions and interaction analysis to investigate how board characteristics may influence this relationship.

Descriptive analysis reveals pervasive Zakat compliance, underscoring the effectiveness of Saudi Arabia’s robust Zakat system. Regression results indicate a positive association between Zakat payment and firm value. Remarkably, board characteristics exhibit no significant link to Zakat avoidance, emphasizing the potency of the Zakat system and religious adherence. However, the moderation analysis reveals that board independence and meeting frequency positively moderate the relationship between Zakat avoidance and firm value.

The study emphasizes the vital importance of upholding Zakat obligations to cultivate trust among stakeholders and amplify firm value. It advocates for governance frameworks that foster vigilant oversight and independence, ultimately enhancing a firm’s overall worth. Furthermore, the study’s findings provide valuable insights for corporate leaders, investors, policymakers and society as a whole, facilitating the promotion of ethical financial conduct and driving holistic economic development.

This research introduces novel insights by scrutinizing the intricate interplay of Zakat avoidance, board dynamics and firm value within the context of a culturally distinctive emerging economy. The development of a distinct Zakat avoidance metric, along with comprehensive empirical assessment, contributes to the originality of the study. Moreover, the investigation into the moderating influence of board characteristics adds value to the existing body of knowledge.

This review provides an overview of recent advances in electrochemical sensors for analyte detection in saliva, highlighting their potential applications in diagnostics and health care. The purpose of this paper is to summarize the current state of the field, identify challenges and limitations and discuss future prospects for the development of saliva-based electrochemical sensors.

The paper reviews relevant literature and research articles to examine the latest developments in electrochemical sensing technologies for saliva analysis. It explores the use of various electrode materials, including carbon nanomaterial, metal nanoparticles and conducting polymers, as well as the integration of microfluidics, lab-on-a-chip (LOC) devices and wearable/implantable technologies. The design and fabrication methodologies used in these sensors are discussed, along with sample preparation techniques and biorecognition elements for enhancing sensor performance.

Electrochemical sensors for salivary analyte detection have demonstrated excellent potential for noninvasive, rapid and cost-effective diagnostics. Recent advancements have resulted in improved sensor selectivity, stability, sensitivity and compatibility with complex saliva samples. Integration with microfluidics and LOC technologies has shown promise in enhancing sensor efficiency and accuracy. In addition, wearable and implantable sensors enable continuous, real-time monitoring of salivary analytes, opening new avenues for personalized health care and disease management.

This review presents an up-to-date overview of electrochemical sensors for analyte detection in saliva, offering insights into their design, fabrication and performance. It highlights the originality and value of integrating electrochemical sensing with microfluidics, wearable/implantable technologies and point-of-care testing platforms. The review also identifies challenges and limitations, such as interference from other saliva components and the need for improved stability and reproducibility. Future prospects include the development of novel microfluidic devices, advanced materials and user-friendly diagnostic devices to unlock the full potential of saliva-based electrochemical sensing in clinical practice.