The purpose of this paper is utilizing quasi-experimental study to evaluate the educational value of a documentary film for transitional care about children dental health management The method used in this study is a ...The purpose of this paper is utilizing quasi-experimental study to evaluate the educational value of a documentary film for transitional care about children dental health management The method used in this study is a pre-post survey among nurse viewers. The study was completed over a 12-month period. In the experimental group, when the nurses watched the documentary film, they evaluated the documentary film highly and reported an intention to change their transitional care practice and mind as a result of watching the documentary film. Following viewing, children and their parents felt more strongly that "children with dental problems should meet with a nurse early" and that "transitional care greatly impacts children oral health". As a result, a documentary film about oral transitional care is an effective educational tool to improve nurses' transitional care awareness among children about the importance and needs of children. The results suggest that if significant modifications are obtained, this approach can be an efficient way applicable to other contexts of patient care.展开更多
Chitin and chitosan have been applied to biological wastewater treatment.From a number of parallel comparison experiments,it can be concluded that the application of chitin and chitosan can both enhance the biological...Chitin and chitosan have been applied to biological wastewater treatment.From a number of parallel comparison experiments,it can be concluded that the application of chitin and chitosan can both enhance the biological treatment,besides which chitosan is more efficient than chitin.The study on the enhancement mechanism reveals the difference between the two additives:chitosan improves the sludge structure and settlibility,while chitin acts as a kind of carrier for microorganism in the biological treatment system.展开更多
TOR (Tema oil refinery) is the only petroleum refinery in Ghana. To assess the quality of the wastewater, wastewater samples taken from three points of discharge into the treatment plant and the treated effluent wer...TOR (Tema oil refinery) is the only petroleum refinery in Ghana. To assess the quality of the wastewater, wastewater samples taken from three points of discharge into the treatment plant and the treated effluent were analyzed for physico-chemical characteristics. The levels of the pH, temperature, conductivity, COD (Chemical Oxygen Demand), TDS (Total Dissolved Solids), TSS (Total Suspended Solids) and phenol were assessed from January to June, 2011. The results obtained indicate varied levels of contaminants in both the untreated and treated wastewater. The average values of the treated effluent parameters analyzed were 38 ℃, 6,258 μs.cm-1, 314 mg-L-1, 115 mg.L-1, 2,689 mg-L-1 and 1 mg.L-1 for the temperature, conductivity, COD, TDS, TSS and phenol, respectively. The results suggest that both the raw wastewater and the treated effluent did not meet the discharge limit set by Ghana Environmental Protection Agency. Therefore, the treated effluent required additional treatment before it can be discharged into the environment. This suggests that the wastewater treatment plant of TOR is ineffective for the type of wastewater produced.展开更多
文摘The purpose of this paper is utilizing quasi-experimental study to evaluate the educational value of a documentary film for transitional care about children dental health management The method used in this study is a pre-post survey among nurse viewers. The study was completed over a 12-month period. In the experimental group, when the nurses watched the documentary film, they evaluated the documentary film highly and reported an intention to change their transitional care practice and mind as a result of watching the documentary film. Following viewing, children and their parents felt more strongly that "children with dental problems should meet with a nurse early" and that "transitional care greatly impacts children oral health". As a result, a documentary film about oral transitional care is an effective educational tool to improve nurses' transitional care awareness among children about the importance and needs of children. The results suggest that if significant modifications are obtained, this approach can be an efficient way applicable to other contexts of patient care.
文摘Chitin and chitosan have been applied to biological wastewater treatment.From a number of parallel comparison experiments,it can be concluded that the application of chitin and chitosan can both enhance the biological treatment,besides which chitosan is more efficient than chitin.The study on the enhancement mechanism reveals the difference between the two additives:chitosan improves the sludge structure and settlibility,while chitin acts as a kind of carrier for microorganism in the biological treatment system.
文摘TOR (Tema oil refinery) is the only petroleum refinery in Ghana. To assess the quality of the wastewater, wastewater samples taken from three points of discharge into the treatment plant and the treated effluent were analyzed for physico-chemical characteristics. The levels of the pH, temperature, conductivity, COD (Chemical Oxygen Demand), TDS (Total Dissolved Solids), TSS (Total Suspended Solids) and phenol were assessed from January to June, 2011. The results obtained indicate varied levels of contaminants in both the untreated and treated wastewater. The average values of the treated effluent parameters analyzed were 38 ℃, 6,258 μs.cm-1, 314 mg-L-1, 115 mg.L-1, 2,689 mg-L-1 and 1 mg.L-1 for the temperature, conductivity, COD, TDS, TSS and phenol, respectively. The results suggest that both the raw wastewater and the treated effluent did not meet the discharge limit set by Ghana Environmental Protection Agency. Therefore, the treated effluent required additional treatment before it can be discharged into the environment. This suggests that the wastewater treatment plant of TOR is ineffective for the type of wastewater produced.