In this paper, vibration of the protein microtubule, one of the most important intracellular elements serving as one of the common components among nanotechnology, biotechnology and mechanics, is investigated using stress and strain gradient elasticity theory and orthotropic elastic shells model. Microtubules in the cell are influenced by internal and external stimulation and play a part in con...

In human fertilization, the sperm centrosome nucleates a radial array of microtubules called the sperm aster. The sperm aster is responsible for apposition of male and female pronuclei, and later gives rise to the first meiotic spindle. The objective of this study was to determine microtubule assembly and chromatin configuration in rabbit oocytes following intracytoplasmic injection with human ...

Molecular motor gliding motility assays based on myosin/actin or kinesin/microtubules are of interest for nanotechnology applications ranging from cargo-trafficking in lab-on-a-chip devices to novel biocomputation strategies. Prototype systems typically monitored by expensive and bulky fluorescence microscopy the development integrated, direct electric detection single filaments would strongly ...

Syntactic and discourse boundaries are signalled by prosodic cues as well as linguistic cues in speech. We investigated whether there is a correspondence between prosodic or linguistic cues and the boundary strengths. We measured the rates of filled pauses (FPs) and conjunctions, and the durations of silent and filled pauses and conjunctions at four types of boundaries in casual presentations i...

Widely acknowledged as an archetypal design activity, sketching is typically carried out using little more than pen and paper. Today’s designed artifacts however, are often given qualities that are hard to capture with traditional means of sketching. While pen and paper sketching catches the character of a building, it may not equally well capture how that building changes with the seasons, how...

Young sows are subordinate and vulnerable in group-housing systems because they usually lose most fights and suffer more injuries than mature sows at mixing. This study was conducted to evaluate effects of sorting by parity on reducing aggression and associated stress with the aim to improve welfare and performance of first-parity sows in a group-housed system. Sows and gilts (n = 180) from 6 b...

"Wrong patient" insulin pen injections alarmingly frequent.