Abstract This paper presents the modelling, design, fabrication and characterization of flow sensors based on the wind-receptor hairs of crickets. Cricket sensory hairs are highly sensitive to drag-forces exerted on the hair shaft. Artificial sensory hairs have been realized in SU-8 on suspended SixNy membranes. The movement of the membranes is detected capacitively. Capacitance versus voltage,...

We present monolithically integrated high-density arrays of artificial hairs for flow pattern measurements based on drag force. A combined bulk/surface micromachining process has been developed to integrate the artificial hairs with capacitive read-out. First fabrication results show the possibility to fabricate out-of-plane hairs without reverting to micro-assembly technologies. This enables r...

Trichoscopy examination revealed the presence of few empty follicles, small broken hairs, black dots, and hair with uniform nodal dilatations with intermittent constrictions at which there was shaft breakage [Figure 2]. The hairs were of varying lengths; many were broken. Hairs with normal morphology were seen interspersed within this beaded hair. The beaded hair showed bending in different dir...

Allogrooming is a normal behavior for socially bonded cats. Cat hairs may have epithelial cells on the shaft from at least two cat contributors, the host (groomee) and the donor (groomer). To determine the likelihood of obtaining a mixture or incorrect DNA profile in cat hairs, feline mtDNA control region from hairs of allogrooming cats was isolated and analyzed by direct sequencing. Two DNA ex...

In many legumes, including Lotus japonicus and Medicago truncatula, susceptible root hairs are the primary sites for the initial signal perception and physical contact between the host plant and the compatible nitrogen-fixing bacteria that leads to the initiation of root invasion and nodule organogenesis. However, diverse mechanisms of nodulation have been described in a variety of legume speci...