The effect of capacity, willingness and opportunity on teachers job-related performance

Kajian ini adalah berkenaan dengan faktor-faktor yang boleh mempengaruhi prestasi kerja. Ia bertumpu kepada faktor-faktor kemampuan kerja seseorang guru, kesediaan seseorang guru untuk melaksanakan tugas mereka dan peluang-peluang yang dimiliki oleh guru-guru untuk melaksanakan kerja dengan sebaik mungkin. Dengan mengubahsuai model yang dibentuk oleh Blumberg dan Pringle, kajian ini cuba melihat perkaitan antara faktor-faktor yang dicadangkan oleh Blumberg dan Pringle iaitu kemampuan, kesediaan dan peluang dengan prestasi kerja. This study is concerned with the factors that can influence the job-related performance. It focuses on factors such as a teacher's job capacity, willingness to implement their duties and opportunity to possibly enhance their works. By altering the model constructed by Blumberg and Pringle (capacity, willingness and opportunity) with job-related performance

Effect of simulated ocean acidification on chitin content in the shell of white shrimp, Litopenaeus vannamei

This study examined the effect of simulated ocean acidification on chitin content in the shell of marine white shrimp,Litopenaeus vannamei. The experiment was conducted in tanks where a change in carbonate chemistry characterizing theocean acidification related to climate change was induced by supplying the exogenous carbon dioxide to the sea water. Even a short-term exposure to the treated water resulted in a significant loss (P005) in the quantity of chitin in the shell. There are compelling reasons to believe that the acidosis caused in the acidification of the seawater causes acidosis inside the shrimp body and disturb the homoeostasis. This could manifest in significant interference with the synthetase and chitinolytic enzymes or hormones produced by the Y-organ. Further acidification of oceans could lead to seriously disturbed marine ecosystem, and decline in biodiversity and fisheries