In this case study, a man at the onset of Alzheimer's disease (AD) was enrolled in a cognitive treatment program based upon spatial navigation in a virtual reality (VR) environment. We trained him to navigate to targets in a symmetric, landmark-less virtual building. Our research goals were to determine whether an individual with AD could learn to navigate in a simple VR navigation (VRN) enviro...

From the Division of Neurosurgery (Drs. El-Watidy, A. Jamjoom, Z. Jamjoom), King Khalid University Hospital, Riyadh and Department of Neurosurgery (Or. Selen), Northern Area Armed Forces Hospital, Hafer AI-Batin. Address reprint requests and correspondence to Or. A. Jamjoom: Consultant Neurosurgeon, Division of Neurosurgery, King Khalid University Hospital, p.a. Box 2925, Riyadh 11461, Saudi Ar...

The aim of this study was to evaluate the normalized response speed (Vrn) of the knee musculature (flexor and extensor) in high competitive level volleyball players using tensiomyography (TMG) and to analyze the muscular response of the vastus medialis (VM), rectus femoris (RF), vastus lateralis (VL), and biceps femoris (BF) in accordance with the specific position they play in their teams. One...

Abstract Knowledge of the degree genetic diversity can provide fundamental information to breeders for use in various breeding programmes, instance selection lines with better adaptability. The analysis 188 winter wheat genotypes demonstrated that this group cultivars could be divided into four clusters based primarily on geographical origin. first contained mostly American and Asian cultivars,...

Heading time is a major determinant of the adaptation of wheat to different environments, and is critical in minimizing risks of frost, heat, and drought on reproductive development. Given that major developmental genes are known in wheat, a process-based model, APSIM, was modified to incorporate gene effects into estimation of heading time, while minimizing degradation in the predictive capabi...

Winter wheat (Triticum spp.) varieties require long exposures to low temperatures to flower, a process called vernalization. The VRN2 locus includes two completely linked zinc finger-CCT domain genes (ZCCT1 and ZCCT2) that act as flowering repressors down-regulated during vernalization. Deletions or mutations in these two genes result in the elimination of the vernalization requirement in diplo...

The spring-type near isogenic line (NIL) of the winter-type barley (Hordeum vulgare ssp. vulgare) var. Hayakiso 2 (HK2) was developed by introducing VERNALIZATION-H1 (Vrn-H1) for spring growth habit from the spring-type var. Indo Omugi. Contrary to expectations, the spring-type NIL flowered later than winter-type HK2. This phenotypic difference was controlled by a single gene, which cosegregate...