this paper investigates host condition factor, parasite interaction and metal accumulation in tilapia guineesis and host-parasite system in iddo area of lagos lagoon, nigeria. eighty specimens of t. guineensis from the lagoon were caught and dissected for intestinal helminth parasites. condition factors of all individuals were determined. median condition (k<2.62 and k>2.62) were used in groupi...

Later Nyāya philosophers maintain that absences are real particulars, irreducible to any positives, we perceive. The fourteenth-century philosopher Gaṅgeśa argues for a condition on absence perception according which always perceive an as of its counterpositive, or corresponding absent object property. Call this the ‘counterpositive condition’. shows counterpositive is both supported by plausib...

While recent studies indicate that observers are able to use dynamic information to anticipate whole-body actions like tennis shots, it is less clear whether the action's amplitude may also allow for anticipation. We therefore examined the role of movement dynamics and amplitude for the anticipation of tennis-shot direction. In a previous study, movement dynamics and amplitude were separated fr...

In viewpoint of development photocatalyst for water purification based on advanced oxidation process, hydroxyapatite (HAP-400) and fluoraptite (FAP) were treated with Bi(NO3)3 in DMSO/H2O mixed solvent (DMSO = dimethylsufoxide) to give the corresponding Bi-treated apatites, HAP-400-Bi FAP-Bi, respectively. The apatites investigated as catalysts photodegradation dyes, alizarin red S (ARS) methyl...

We report on the association of absent patellae, genital and renal anomalies, dysmorphic features, and mental retardation in seven children (six boys and one girl) belonging to five unrelated families. Flexion deformities of the knees and hips with club feet and absent patellae were consistently observed and scrotal hypoplasia and cryptorchidism were present in all boys (6/6). Dysmorphic featur...

This study describes the use of an operant methodology to assess functional relationships between self-injury and specific environmental events. The self-injurious behaviors of nine developmentally disabled subjects were observed during periods of brief, repeated exposure to a series of analogue conditions. Each condition differed along one or more of the following dimensions: (1) play material...