China to invest $532 million in Rwanda in 2011 CHINA will invest about $532 million in Rwanda this year,mainly targeting critical economic engines such as building roads and vocational schools,said Shu Zhan,Chinese A...China to invest $532 million in Rwanda in 2011 CHINA will invest about $532 million in Rwanda this year,mainly targeting critical economic engines such as building roads and vocational schools,said Shu Zhan,Chinese Ambassador to Rwanda,in early February. "We need to have adequate field surveys,wide consultation and detailed ’homework,’ in order to come up with tailor-made solutions that meet local needs," Shu said in an interview with ChinAfrica.展开更多
Introduction: Motorcyclists bear a disproportionate burden of morbidity and mortality from road accidents. In addition, the consequences of these accidents affect the ability of victims to return to work. This study a...Introduction: Motorcyclists bear a disproportionate burden of morbidity and mortality from road accidents. In addition, the consequences of these accidents affect the ability of victims to return to work. This study aimed to determine the prevalence and factors associated with non-return to work among surviving motorcyclists involved in road accidents 12 months after the event. Materials and Methods: It was a cross-sectional study conducted using data from a cohort of motorcyclists involved in accidents and recruited in five hospitals in Benin from July 2019 to January 2020. The dependent variable was non-return to work 12 months after the accident (yes vs no). The independent variables were categorized into two groups: baseline and 12-month follow-up variables. Logistic regression was used to determine the factors associated with non-return to work at 12 months among the participants. Results: Among the 362 participants, 55 (15.19%, 95% CI = 11.84 - 19.29) had not returned to work 12 months after the accident. Risk factors for non-return to work identified were: smoking (aOR = 4.41, 95% CI = 1.44 - 13.56, p = 0.010), hospitalization (aOR = 2.87, 95% CI = 1.14 - 7.24, p Conclusion: The prevalence of non-return to work at 12 months was high among surviving motorcyclists involved in road accidents in Benin. Integrated support for patients based on identified risk factors should effectively improve their return to work.展开更多
Rice Husk Ash(RHA)has been found as a potential partial replacement for cement in concrete.This study attempts to make an evidence based evaluation of the sustainability and benefits of RHA utilisation as partial repl...Rice Husk Ash(RHA)has been found as a potential partial replacement for cement in concrete.This study attempts to make an evidence based evaluation of the sustainability and benefits of RHA utilisation as partial replacement of cement in road concrete works within Anambra State of Nigeria.The ashes of the rice husks collected from different locations were characterised.Direct interviews were conducted among the rice mill personnel and experts in the construction companies.The values of SiO2+Fe2O3+Al2O3 for the four analysed RHA samples ranged from 78.9%to 80.3%as revealed by the X-ray fluorescence analysis.This confirms that they are pozzolanic.The highest observed 28th day compressive strength of concrete was 41.8 N/mm2 for the concrete containing 10%RHA.Beyond the 10%replacement level,the compressive strength dropped below the control values.The result of the Analytical Hierarchy Process(AHP)analysis displayed the highest option preference of 40.3%for utilising RHA in road construction.These show that utilising RHA for road concrete works would be a sustainable option.10%replacement of cement with RHA was recommended for optimum performance based on the compressive strengths of the tested RHA based concretes.展开更多
文摘China to invest $532 million in Rwanda in 2011 CHINA will invest about $532 million in Rwanda this year,mainly targeting critical economic engines such as building roads and vocational schools,said Shu Zhan,Chinese Ambassador to Rwanda,in early February. "We need to have adequate field surveys,wide consultation and detailed ’homework,’ in order to come up with tailor-made solutions that meet local needs," Shu said in an interview with ChinAfrica.
文摘Introduction: Motorcyclists bear a disproportionate burden of morbidity and mortality from road accidents. In addition, the consequences of these accidents affect the ability of victims to return to work. This study aimed to determine the prevalence and factors associated with non-return to work among surviving motorcyclists involved in road accidents 12 months after the event. Materials and Methods: It was a cross-sectional study conducted using data from a cohort of motorcyclists involved in accidents and recruited in five hospitals in Benin from July 2019 to January 2020. The dependent variable was non-return to work 12 months after the accident (yes vs no). The independent variables were categorized into two groups: baseline and 12-month follow-up variables. Logistic regression was used to determine the factors associated with non-return to work at 12 months among the participants. Results: Among the 362 participants, 55 (15.19%, 95% CI = 11.84 - 19.29) had not returned to work 12 months after the accident. Risk factors for non-return to work identified were: smoking (aOR = 4.41, 95% CI = 1.44 - 13.56, p = 0.010), hospitalization (aOR = 2.87, 95% CI = 1.14 - 7.24, p Conclusion: The prevalence of non-return to work at 12 months was high among surviving motorcyclists involved in road accidents in Benin. Integrated support for patients based on identified risk factors should effectively improve their return to work.
文摘Rice Husk Ash(RHA)has been found as a potential partial replacement for cement in concrete.This study attempts to make an evidence based evaluation of the sustainability and benefits of RHA utilisation as partial replacement of cement in road concrete works within Anambra State of Nigeria.The ashes of the rice husks collected from different locations were characterised.Direct interviews were conducted among the rice mill personnel and experts in the construction companies.The values of SiO2+Fe2O3+Al2O3 for the four analysed RHA samples ranged from 78.9%to 80.3%as revealed by the X-ray fluorescence analysis.This confirms that they are pozzolanic.The highest observed 28th day compressive strength of concrete was 41.8 N/mm2 for the concrete containing 10%RHA.Beyond the 10%replacement level,the compressive strength dropped below the control values.The result of the Analytical Hierarchy Process(AHP)analysis displayed the highest option preference of 40.3%for utilising RHA in road construction.These show that utilising RHA for road concrete works would be a sustainable option.10%replacement of cement with RHA was recommended for optimum performance based on the compressive strengths of the tested RHA based concretes.
