Essays

Ever since the first philosophically inquisitive minds questioned the mechanisms of living organisms and their process’, the scientific community has recorded oscillations in emphasis and bias through conflicting dilemmas. This drive taken toward a commonly identifiable nucleus of knowledge has …

Many educationalists and politicians are beginning to support the notion that ‘Yob parents are to blame for child crime’ and child disturbance, according to Ahmed and Bright (2002). This emphasis on external influences upon the child, advocates a behaviourist perspective …

The conclusions of Murray and Bowlby imply that the child’s environment, particularly social relations with their mother are fundamental in the child’s own psychological and emotional development. However, further research by Zahn-Waxler et al (1990) demonstrated that some postnatally depressed …

What are the advantages and disadvantages of using DNA sequence data for assessing relationships between the major groups of land plants? The relationships between land plants, particularly the lower levels of the Bryophytes and the origins of the Angiosperms, has been …

So far molecular studies of subfossil material have served only to confirm the placement of extinct taxa and not influenced the relationships of extant species. This is a section where morphological analysis has the advantage, as it is able to …

Behavioural therapy takes a practical, problem solving approach and it is a logical extension of behaviourism as applied to psychopathology. The therapist has three main roles; the first is to identify maladaptive learning, then to facilitate the unlearning of maladaptive …

Three pathogenic traits of Proteus mirabilis were looked at. P. mirabilis differentiates from a swimmer state to a swarmer state when in the urinary tract to enable it to migrate up the urinary tract. Chemotaxis enables the cells to determine …

The identification tests strongly suggest that this species was P. mirabilis, but the results aren’t 100%. Two tests on the API strip did not come out with the expected result. In the case of H2S production, the conditions may not …

Graph of base pairs against the migrated distance of the fragments of DNA Conclusion: The fragments that moved more across the gel were the ones that had less base pairs because their mass is smaller and they can move across the gel …

All geographical research is guided by a set of philosophical beliefs, influencing or motivating the selection of topics for study. There has been and always will be differences in opinion in what or how geography is to be studied and …