Characterization of the bHLH Family of Transcriptional Regulators in the ACOELS. roscoffensisand their Putative Role in Neurogenesis

Abstract

Background. The basic Helix loop helix (bHLH) family of transcription factors is one of the largest superfamilies of regulatory transcription factors and are widely used in eukaryotic organisms. They play an essential role in a range of metabolic, physiological, and developmental processes, including the development of the nervous system (NS).

On the Extent of Negative First-Day IPO Returns

“…Delisting, or removing a company from stock exchange listings is a key subject in the study of IPO performance and firm survival (Martinez and Serve, 2017). The literature differentiates between involuntary and voluntary delisting, depending on the initiating entity-either stock market authorities or the firm itself (Macey et al, 2008).…”

“…Regulatory changes, such as those introduced by the Sarbanes-Oxley Act (SOX) of 2002 (Chapter 2), have been posited to significantly influence this cost-benefit analysis by escalating compliance costs (Martinez and Serve, 2017). Initial empiri-…”

“…Particularly as the importance of analysing post-IPO behaviour cannot be overstated. The assessment of an IPO's failure risk holds paramount significance for various stakeholders, especially given the alarming surge in IPO failure rates over recent decades in the U.S. (Martinez and Serve, 2017). Ehsani and Osiyevskyy (2023) posited that firms' survival and prosperity hinge on their adeptness in continually adapting to their ever-evolving environments.…”

“…Conversely, the firm initiates a voluntary delisting. However, this category is notably heterogeneous, and the existing literature adopts a fragmented approach, lacking a unified classification (Martinez and Serve, 2017). This study follows the approach by Macey et al (2008), and the delistings are divided into voluntary and involuntary delistings.…”

“…Nonetheless, these companies sometimes secure valuations that exceed their fundamental worth, which, when the market realises, leads to involuntary delistings. FIRST-DAY IPOS ( Martinez and Serve, 2017). As recently articulated by Ehsani and Osiyevskyy (2023), a firm's survival and success depend on its ability to adapt to changing environments continuously.…”