Abu Bakar

M a t h J a x /extensions/tex2jax.js

Abstract Clinical samples are routinely inactivated before molecular assays to prevent pathogen transmission.

Two-component micro-powder injection moulding (2C-μPIM) is a prospective approach for fabricating bi-material micro-components of stainless steel 316L (SS316L) and 3 mol% yttria-stabilised zirconia (3YSZ) at an appealing cost. However, the fundamental challenge lies in preventing the formation of large-scale cracks at the interface of two different materials during sintering. This study investigated how SS316L nanoparticles in bimodally configured SS316L powder that incorporated both nanoparticles and microparticles influenced the sintering of 2C-μPIM-processed miniature bi-materials made of bimodal SS316L and 3YSZ. In this study, feedstocks were developed by integrating monomodal (micro-sized) SS316L powder, three types of nano/micro-bimodal SS316L powders, and 3YSZ powder individually with palm stearin and low-density polyethylene binders. The results indicated that increasing the SS316L nanoparticle content to 45 vol.% caused a 19.5% increase in the critical powder loading in the bimodal SS316L powder as compared to that in the monomodal SS316L powder. The addition of SS316L nanoparticles increased the relative density and hardness of the sintered bi-materials, with the maximum values obtained being 96.8% and 1156.8 HV, respectively. Field emission scanning electron microscopy investigations revealed that adding 15 vol.% and 30 vol.% SS316L nanoparticle contents reduced interface cracks in bi-materials significantly, while 45 vol.% resulted in a crack-free interface.

With the rising trend toward sustainable consumption and the pivotal role of social media in the buying behavior, brands are keen to promote sustainable products through these platforms. Virtual influencers (VIs) have emerged as lower-cost and scandal-resistant alternatives to human influencers (HIs). However, their artificial nature may evoke credibility concerns, potentially undermining marketing effectiveness. Currently, it is unclear whether humans or virtual influencers achieve better endorsement outcomes for sustainable products. This study explores the effectiveness of VIs and HIs in endorsing sustainable products and the conditions under which VIs may outperform HIs. Through two studies (N = 1097), we investigate the impact of influencer type, advertising appeals, and product involvement on consumer purchase intentions and brand attitudes. Our findings reveal that, in low-involvement product scenarios with emotional appeals, HIs are more effective, while in high-involvement product scenarios featuring rational appeals, VIs exhibit superior effectiveness. These results suggest that the choice of influencer type should be tailored to the product involvement level and the nature of the advertising appeal, providing guidance for brands to enhance the impact of their green marketing strategies.

Supernumerary B chromosomes (Bs) have been documented in over 2000 species across the plant, animal, and fungal kingdoms, representing one of the most intriguing components of the genome that have consistently garnered significant attention in the past. These Bs form a distinct category of chromosomes that are not deemed essential. While coexisting with the standard set of chromosomes in an organism, the copy numbers of Bs can vary among individuals within a population or even among cells within a single organism. Multiple processes, including chromosomal rearrangement, uneven segregation, chromatid non-disjunction, and deletion in specific regions, lead to the formation of the Bs from the A chromosome. These dispensable Bs possess their own genetic content and do not undergo recombination with A chromosomes. Although various roles of Bs in breeding have been explored in the literature, their specific role in wheat improvement remains unclear. The understanding of their origins, composition, and evolutionary history in wheat is still incomplete. Therefore, this review discusses the current knowledge of the genetic makeup of Bs, their functions, their relationship with A chromosomes, and the morphogenetic consequences in the context of wheat.

USM PULAU PINANG, 14 November 2024 – Universiti Sains Malaysia (USM) melalui Pejabat Pengurusan & Kreativiti Penyelidikan (RCMO) telah menganjurkan majlis penganugerahan untuk meraikan penerima Skim Geran Universiti Penyelidikan Transdisiplinari (RUTrans) bagi tahun 2024.

M a t h J a x /extensions/tex2jax.js

Abstract Fusarium oxysporum is a cosmopolitan fungus, consisting of both pathogenic and non-pathogenic members and known to be the causative agent of several diseases on various host plants.

Abstract: A great deal of effort has been devoted to discovering a particular genetic disorder, but its classification across a broad spectrum of disorder classes and types remains elusive.

Zainudin Bin Abu Bakar, Liu Caixia, Xuqianqian This study investigates the impact of a positive psychology course based on the PERMA-H theory on the well-being of vocational students.