In this study, nineteen unmodified lignins from various sources (hardwood, softwood, wheat straw, and corn stover) and isolation processes (kraft, soda, organosolv, sulfite, and enzymatic hydrolysis) were used to replace 30 wt.% of petroleum-based polyol in rigid polyurethane/polyisocyanurate (PUR/PIR) foam formulations.Lignin samples were characte

This was a case of a 35-year-old man with mediastinal mass tatsoul wrath foam tube requiring computed tomography (CT)-guided biopsy for tissue diagnosis.A posterior approach with an 18-gauge biopsy needle was used to obtain tissue sample.Post biopsy, patient condition deteriorated and multiphase CT study detected active bleeding in arterial phase a

The Notch-Delta ROSE signaling pathway mediates cell differentiation implicated in many regulatory processes including spatiotemporal patterning in tissues by promoting alternate cell fates between neighboring cells.At the multicellular level, this "lateral inhibition" principle leads to checkerboard patterns with alternation of Sender and Receiver

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