This study focused on the heat transfer involved in hot pressing. The temperature behaviour inside the mat of wood-based panels according to the manufacturing conditions-such as mat moisture level, furnish material, and press temperature-was characterised. Hinoki strands and ring-flaker recycled wood particles were used for experimental panel production. Temperature behaviour was measured at the surface and the centre of the mat. The results indicate that the manufacturing condition affected the temperature behaviour of the mat during hot pressing. Plateau time increased with increasing mat moisture content and utilisation of hinoki strands but decreased with increasing press temperature. Use of hinoki strands resulted in a higher plateau temperature than did recycled wood particles. The higher mat moisture content and press temperature resulted in a higher plateau temperature. Furnish type also affected heat conductivity in the mat centre after the completion of the plateau.
Aim
Oral squamous cell carcinoma (OSCC) is the most frequently occurring cancer among head and neck SCC worldwide. The identification of novel effective biomarkers for early detection may greatly improve the survival rate and prognosis of patients with OSCC. This study aimed to identify specific oral microbial profiles associated with OSCC.
Methods
Saliva samples were collected from oral leukoplakia (OLK) and OSCC patients (N = 6 each) and healthy controls (HC; N = 4). Total bacterial genomic DNA was isolated and 16S rRNA gene survey was performed by next‐generation sequencing of the V4 region. The relative distribution of abundance for phylogenetic groups was compared among the OSCC and OLK groups.
Results
The 448 operational taxonomic units detected from the libraries were classified into 133 genera, 69 families, 41 orders, 26 classes and 12 phyla. The abundance of phyla Bacteroidetes and genus Solobacterium was notably higher in the OSCC group when compared with the OLK group, whereas those of genus Streptococcus was significantly lower in the OSCC group when compared with the OLK.
Conclusion
These changes in the salivary microbiome may have potential applications as a novel diagnostic tool for the early detection of OSCC.
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