Genetic control of mammalian head development involves mechanisms that are shared with trunk development as well as mechanisms that are independent. For example, mutations in the nodal gene disrupt axis formation and head development while mutations in the Otx2 or Lim1 genes block head development without disrupting development of the trunk. We show here that the oto mutation on mouse chromosom...

Introduction: According to World Health Organization (WHO) 2001 statistics, hearing disorders are the most common congenital disease, and the incidence rate among high-risk newborns is as much as ten times as high as that in healthy neonates. However, 78% of screening test failures are well-baby nursery babies. The Joint Committee on Infants’ Hearing (JCIH) has emphasized the importance of earl...

BACKGROUND With the increasing amount and complexity of medical information, medical schools are challenged with incorporating surgical subspecialty education, such as otolaryngology (OTO), into a time-limited curriculum. OBJECTIVES To understand the state of OTO education in US medical schools and to generate a discussion of the role of surgical subspecialty education in the medical school c...

On the rotor comprehensive fault simulation testbed, characteristics of acoustic emission signal of different crack rotors in various depth and conditions are analyzed by the acoustic emission extraction experiment. The noiseeliminating method of the acoustic emission signal was researched by the wavelet packet technique, the characteristics of acoustic emission signal of the rotor crack was al...

Study the tensile damage and fracture behavior of FRP composite materials by the acoustic emission technology, broadband sensors record the acoustic emission signals when composite materials in the process of tensile damage at different fiber angle. The acoustic emission characteristics of FRP composite materials’ tensile damage was analyzed by 3D parameter methods. Analysis the amplitude of co...

The endeavour of the Virtual Business learning concept of OTO developed at the Open University of the Netherlands, is the implementation of a new type of open learning arrangements, meeting the learning needs of today’s bachelor students at the School of Informatics. OTO is the virtual learn-work environment for a course ‘Design Project’. The constructivist and prescriptive learning elements in...

In order to estimate health conditions of fan bearings and predict their remaining life before failure, relevant features associated with their degradation must be identified. There are few published papers that deal with the selection of relevant features from acoustic emission signals for health condition estimation and life prediction of bearings in cooling fans. For this study, acoustic emi...

Based on a recent hypothesis, "Five same genomes of endosperm are essential for its development in Lilium", it is expected that allotriploid lily (OTO) can be hybridized with diploid Oriental lily (OO) for introgression breeding in Lilium L.. To test the hypothesis, OTO lilies, 'Belladonna', 'Candy Club' and 'Travatore', were used as the maternal parents and crossed with two diploid OO cultivar...