the aim of the present study was to investigate the effects of various scheduled practices (self-regulated and non-self-regulated) on the acquisition, retention and transfer of simple and complex tracking tasks. 96 right-handed undergraduate students (age rang: 18-24 years old) volunteered to participate in this study (48 females, 48 males). these students participated in physical education cla...

Frozen shoulder (FS) or adhesive capsulitis is a common disease which causes pain, difficulty and restriction in the movement of the shoulder joint due to unclear complex etiology. The everyday tasks such as bathing, dressing and driving become difficult. It affects both men and women especially in their 40s and 60s. The duration of the disease varies from one patient to another and it may last...

a simple hydrothermal method was designed for the synthesis of the nanostructure barium phosphonate in presence of cetyltrimethylammonium bromide (ctab) or sodium dodecyl sulfate (sds) as surfactant. ft-ir, edax, xrf, xrd, sem were used to characterize this material. effect of solvent on morphology complex was discussed. thermogr avimetric analysis (tga) shows the existence of porosity and stab...

Do the words “East” and “West” mean more than just geographical orientations or areas? This seems to be a simple question, which cannot be answered easily.The difficulty in answering such a question seems to be rooted in questions that deal with universal concepts. Defining such universal concepts, which seems quite simple, is very difficult indeed - perhaps even impossible in some cases. “E...

Ultrasonography is the primary imaging tool for a patient considered to have an ovarian cyst. On a sonogram, simple ovarian cysts have a uniformly thin, rounded wall and a unilocular appearance that is either hypoechoic or anechoic. They usually measure 2.5-15 cm in diameter, and posterior acoustic enhancement (a hyperechoic area) may be visible deep to the fluid-filled cyst. Most commonly, the...

A relatively small number of mathematically simple maps and flows are routinely used as examples of low-dimensional chaos. These systems typically have a number of parameters that are chosen for historical or other reasons. This paper addresses the question of whether a different choice of these parameters can produce strange attractors that are significantly more chaotic (larger Lyapunov expon...

This paper describes the interaction and object representation features of the visual database editor ESCHER which is based on the nested relational data model. In particular we like to indicate the multiple two-dimensional cursors and their way of moving in and out of nested objects, cut-and-paste operations, the QBE-like query mechanism, interactive schema design, and the unusual, self-refere...

Although the budding yeast centromere is extremely short (125 bp) compared to those of other eukaryotes, the kinetochore that assembles on this DNA displays a rich molecular complexity. Here, we describe recent advances in our understanding of kinetochore function in budding yeast and present a model describing the attachment that is formed between spindle microtubules and centromeric DNA. This...