Pub Date : 2021-04-18DOI: 10.30880/JST.2021.13.01.002
Halimatun Saadiah Ahmad, Exercise, A. Muhamad
Smoking can weaken immune function as reported in previous studies. However, benefits of exercise in reducing negative effects of smoking on salivary lactoferrin responses is scarce to date. Hence, the purpose of this study is to determine the effects of an acute bout of exercise on salivary lactoferrin responses among smokers and non-smokers. Eighteen sedentary men were recruited; nine smokers (age = 22.4 ± 1.4 years; BMI = 22.1 ± 1.1 kg/m2) and nine non-smokers (age = 22.1 ± 0.7 years old; BMI = 22.5 ± 1.9 kg/m2). In this study, participants cycled at an intensity of 60% maximum heart rate for 60 minutes. Participants were given cool water as much as 3 ml/kg body weight at minutes 20 and 40 during the exercise session. Participants’ body weight and saliva samples were collected at pre and post-exercise. Heart rate and rate of perceived exertion (RPE) were recorded at pre, during and post-exercise. Mixed ANOVA was used to measure significant differences between groups and within group. The results showed that saliva flow rate, lactoferrin concentration and lactoferrin secretion rate were not significantly different (p>0.05) between smokers and non-smokers groups and also between pre and post-exercise within each group. Heart rate and RPE showed significant increased (p<0.05) during the exercise session in both groups. As a conclusion, acute bout of exercised does not affect salivary lactoferrin responses among sedentary smokers and non-smokers men.
{"title":"Effects of an Acute Bout of Exercise on Salivary Lactoferrin Responses among Smokers and Non-Smokers","authors":"Halimatun Saadiah Ahmad, Exercise, A. Muhamad","doi":"10.30880/JST.2021.13.01.002","DOIUrl":"https://doi.org/10.30880/JST.2021.13.01.002","url":null,"abstract":"Smoking can weaken immune function as reported in previous studies. However, benefits of exercise in reducing negative effects of smoking on salivary lactoferrin responses is scarce to date. Hence, the purpose of this study is to determine the effects of an acute bout of exercise on salivary lactoferrin responses among smokers and non-smokers. Eighteen sedentary men were recruited; nine smokers (age = 22.4 ± 1.4 years; BMI = 22.1 ± 1.1 kg/m2) and nine non-smokers (age = 22.1 ± 0.7 years old; BMI = 22.5 ± 1.9 kg/m2). In this study, participants cycled at an intensity of 60% maximum heart rate for 60 minutes. Participants were given cool water as much as 3 ml/kg body weight at minutes 20 and 40 during the exercise session. Participants’ body weight and saliva samples were collected at pre and post-exercise. Heart rate and rate of perceived exertion (RPE) were recorded at pre, during and post-exercise. Mixed ANOVA was used to measure significant differences between groups and within group. The results showed that saliva flow rate, lactoferrin concentration and lactoferrin secretion rate were not significantly different (p>0.05) between smokers and non-smokers groups and also between pre and post-exercise within each group. Heart rate and RPE showed significant increased (p<0.05) during the exercise session in both groups. As a conclusion, acute bout of exercised does not affect salivary lactoferrin responses among sedentary smokers and non-smokers men.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73581745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nghiên cứu tập trung xây dựng tiêu chuẩn kỹ thuật cho viên nang mềm chứa hoạt chất nanocurcumin dạng liposom. Viên nang mềm chứa nanocurcumin liposom có công thức là: curcumin toàn phần 15,0 mg và các tá dược sáp ong trắng, dầu cọ, lecithin, dầu đậu nành. Bước đầu tiên là tiến hành phân lập curcumin II, III từ bột nghệ bằng phương pháp sắc ký cột. Pha động là CHCl3-MeOH có độ phân cực tăng dần. Xác định các đặc tính của curcumin II, III như màu sắc, độ tan, độ tinh khiết (sắc ký lớp mỏng, quét nhiệt vi sai, sắc ký lỏng) và cấu trúc chất thu được (phổ hồng ngoại, phổ khối, phổ cộng hưởng từ hạt nhân). Sau đó sử dụng curcumin phân lập được và chuẩn curcumin I (Chromadex, USA) để thẩm định quy trình định lượng đồng thời curcumin I, curcumin II và curcumin III. Xây dựng tiêu chuẩn kỹ thuật cho viên nang mềm chứa nanocurcumin gồm có các chỉ tiêu hình thức, độ đồng đều khối lượng, độ hòa tan, kích thước hạt, định tính, định lượng.
{"title":"Xây dựng tiêu chuẩn kỹ thuật chế phẩm chứa hoạt chất nanocurcumin dạng liposom","authors":"Nguyễn Tường Vân, Vĩnh Định","doi":"10.55401/jst.v1i1.25","DOIUrl":"https://doi.org/10.55401/jst.v1i1.25","url":null,"abstract":"Nghiên cứu tập trung xây dựng tiêu chuẩn kỹ thuật cho viên nang mềm chứa hoạt chất nanocurcumin dạng liposom. Viên nang mềm chứa nanocurcumin liposom có công thức là: curcumin toàn phần 15,0 mg và các tá dược sáp ong trắng, dầu cọ, lecithin, dầu đậu nành. Bước đầu tiên là tiến hành phân lập curcumin II, III từ bột nghệ bằng phương pháp sắc ký cột. Pha động là CHCl3-MeOH có độ phân cực tăng dần. Xác định các đặc tính của curcumin II, III như màu sắc, độ tan, độ tinh khiết (sắc ký lớp mỏng, quét nhiệt vi sai, sắc ký lỏng) và cấu trúc chất thu được (phổ hồng ngoại, phổ khối, phổ cộng hưởng từ hạt nhân). Sau đó sử dụng curcumin phân lập được và chuẩn curcumin I (Chromadex, USA) để thẩm định quy trình định lượng đồng thời curcumin I, curcumin II và curcumin III. Xây dựng tiêu chuẩn kỹ thuật cho viên nang mềm chứa nanocurcumin gồm có các chỉ tiêu hình thức, độ đồng đều khối lượng, độ hòa tan, kích thước hạt, định tính, định lượng.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79208057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lê Quang Hạnh Thư, Võ Thị Bạch Huệ, Nguyễn Đinh Nga
Nghiên cứu nhằm mục đích phân lập, định danh và khảo sát hoạt tính sinh học của hệ endophyte từ các bộ phận của cây Thông đỏ lá dài (Taxus wallichiana Zucc., Taxaceae) thu hoạch từ tỉnh Lâm Đồng. Pestalotiopsis là hệ endophyte trội được ly trích từ cây Thông đỏ lá dài cho hoạt tính kháng nấm Candida và tác động chống oxy hóa tốt. Bên cạnh đó, các chi nấm gồm Fusarium, Acremonium, Nigrospora và Aspergillus cũng thể hiện hoạt tính sinh học tốt.
{"title":"Khảo sát hoạt tính sinh học của chất biến dưỡng từ hệ endophyte cây thông đỏ lá dài (Taxus wallichiana Zucc., Taxaceae)","authors":"Lê Quang Hạnh Thư, Võ Thị Bạch Huệ, Nguyễn Đinh Nga","doi":"10.55401/jst.v1i1.21","DOIUrl":"https://doi.org/10.55401/jst.v1i1.21","url":null,"abstract":"Nghiên cứu nhằm mục đích phân lập, định danh và khảo sát hoạt tính sinh học của hệ endophyte từ các bộ phận của cây Thông đỏ lá dài (Taxus wallichiana Zucc., Taxaceae) thu hoạch từ tỉnh Lâm Đồng. Pestalotiopsis là hệ endophyte trội được ly trích từ cây Thông đỏ lá dài cho hoạt tính kháng nấm Candida và tác động chống oxy hóa tốt. Bên cạnh đó, các chi nấm gồm Fusarium, Acremonium, Nigrospora và Aspergillus cũng thể hiện hoạt tính sinh học tốt.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90118754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Loài bò cạp Heterometrus laoticus Scorpionidae ở Việt Nam đã được nghiên cứu và cho thấy kết quả có chứa các thành phần gây độc với động vật và côn trùng, có tác động kháng viêm, giảm đau. Ngoài ra, nọc bò cạp còn chứa các thành phần tác động đến quá trình đông máu. Từ nọc bò cạp thô, chúng tôi đã tách ra được 5 phân đoạn bằng sắc ký lọc gel qua cột gel sephadex G-50 và thử nghiệm tác động thì phân đoạn 4 cho tác động giảm đau tốt. Phân đoạn thứ cấp của phân đoạn 4 được tách bằng phương pháp sắc ký lỏng cao áp và tiến hành thử nghiệm tác dụng giảm đau ngoại biên bằng mô hình gây đau quặn bằng acid acetic. Kết quả thu được phân đoạn 4.6 (2,38 mg/kg, sc), 4.7 (9,5 mg/kg, sc), 4.12 (9,5 mg/kg, sc), 4.15 (9,5 mg/kg, sc), 4.16 (9,5 mg/kg, sc), 4.20 (9,5 mg/kg, sc) có tác động giảm đau ngoại biên. Trong đó, phân đoạn 4.6, 4.7 cho tác động giảm đau ngoại biên tốt nhất. Các phân đoạn còn lại 4.3, 4.4, 4.5, 4.8, 4.11, 4.13, 4.14, 4.23, 4.24, 4.25 chưa có tác động giảm đau ngoại biên ở liều 9,5 mg/kg tiêm dưới da
{"title":"Khảo sát tác động giảm đau của các phân đoạn nọc bò cạp heterometrus laoticus scorpionidae","authors":"Nguyễn Thị Thu Hiền","doi":"10.55401/jst.v1i1.24","DOIUrl":"https://doi.org/10.55401/jst.v1i1.24","url":null,"abstract":"Loài bò cạp Heterometrus laoticus Scorpionidae ở Việt Nam đã được nghiên cứu và cho thấy kết quả có chứa các thành phần gây độc với động vật và côn trùng, có tác động kháng viêm, giảm đau. Ngoài ra, nọc bò cạp còn chứa các thành phần tác động đến quá trình đông máu. Từ nọc bò cạp thô, chúng tôi đã tách ra được 5 phân đoạn bằng sắc ký lọc gel qua cột gel sephadex G-50 và thử nghiệm tác động thì phân đoạn 4 cho tác động giảm đau tốt. Phân đoạn thứ cấp của phân đoạn 4 được tách bằng phương pháp sắc ký lỏng cao áp và tiến hành thử nghiệm tác dụng giảm đau ngoại biên bằng mô hình gây đau quặn bằng acid acetic. Kết quả thu được phân đoạn 4.6 (2,38 mg/kg, sc), 4.7 (9,5 mg/kg, sc), 4.12 (9,5 mg/kg, sc), 4.15 (9,5 mg/kg, sc), 4.16 (9,5 mg/kg, sc), 4.20 (9,5 mg/kg, sc) có tác động giảm đau ngoại biên. Trong đó, phân đoạn 4.6, 4.7 cho tác động giảm đau ngoại biên tốt nhất. Các phân đoạn còn lại 4.3, 4.4, 4.5, 4.8, 4.11, 4.13, 4.14, 4.23, 4.24, 4.25 chưa có tác động giảm đau ngoại biên ở liều 9,5 mg/kg tiêm dưới da","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76328505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bài báo này trình bày phương pháp xác định miền giới hạn vật liệu không đồng nhất bằng sự kết hợp thuật đồng nhất hóa và lý thuyết phân tích giới hạn. Bài toán phân tích giới hạn cho một phần tử đại diện (RVE) được xem xét nhằm tìm được tải trọng giới hạn của các trường hợp tải trọng khác nhau. Miền tải trọng biến thiên đại diện cho các trường hợp ứng suất tương ứng của một điểm vật liệu được khảo sát. Việc áp dụng rời rạc hóa miền chuyển vị biến thiên trong bài toán phân tích giới hạn nhằm taọ điều kiện thuận lợi trong việc khai báo điều kiện biên tuần hoàn cho bài toán. Bài toán phân tích giới hạn tích hợp lý thuyết đồng nhất hóa được triển khai dưới dạng bài toán tối ưu hình nón bậc hai (SOCP). Các trường hợp tải trọng giới hạn của phần tử đaị diện hình thành miền giới hạn của một vật liệu không đồng nhất. Ví dụ số được thực hiện và so sánh với các nghiên cứu của các tác giả khác về cường độ vật liệu không đồng nhất nhằm thể hiện sự hiệu quả của phương pháp.
{"title":"Xác định miền cường độ của vật liệu không đồng nhất sử dụng lý thuyết phân tích giới hạn và kỹ thuật đồng nhất hóa","authors":"T. Anh, N. Phương","doi":"10.55401/jst.v1i1.9","DOIUrl":"https://doi.org/10.55401/jst.v1i1.9","url":null,"abstract":"Bài báo này trình bày phương pháp xác định miền giới hạn vật liệu không đồng nhất bằng sự kết hợp thuật đồng nhất hóa và lý thuyết phân tích giới hạn. Bài toán phân tích giới hạn cho một phần tử đại diện (RVE) được xem xét nhằm tìm được tải trọng giới hạn của các trường hợp tải trọng khác nhau. Miền tải trọng biến thiên đại diện cho các trường hợp ứng suất tương ứng của một điểm vật liệu được khảo sát. Việc áp dụng rời rạc hóa miền chuyển vị biến thiên trong bài toán phân tích giới hạn nhằm taọ điều kiện thuận lợi trong việc khai báo điều kiện biên tuần hoàn cho bài toán. Bài toán phân tích giới hạn tích hợp lý thuyết đồng nhất hóa được triển khai dưới dạng bài toán tối ưu hình nón bậc hai (SOCP). Các trường hợp tải trọng giới hạn của phần tử đaị diện hình thành miền giới hạn của một vật liệu không đồng nhất. Ví dụ số được thực hiện và so sánh với các nghiên cứu của các tác giả khác về cường độ vật liệu không đồng nhất nhằm thể hiện sự hiệu quả của phương pháp.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90321468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eiad Saif, Abdulrazzak Akroot, Abdul Raqib Abdo Asaad
This paper uses the CFD technique to simulate the internal environment of a hospital operating room, including the surgical area that includes the patientand the surgical team. Moreover, this work provides mathematical simulation of many models to be placed in the air entry and air exit areas in the operating room to obtainthe optimal model of air distribution within the operating room. The results obtained matched well with experimental data from approved literature and standards. These results found that airflow and air velocity significantly affect the patient’s thermal comfort in the operating room.Besides, it is observed that some recirculation zone is formed, and this is a result of the heat generated by the surgical team and the accelerated air. This region is considered a source for the survival of the polluted air in the room. Keywords: CFD, Operating room, Numerical analysis.
{"title":"CFD Simulation of Air Pollution Distribution and Its Effect on Patients in Hospital Operating Rooms","authors":"Eiad Saif, Abdulrazzak Akroot, Abdul Raqib Abdo Asaad","doi":"10.20428/jst.v25i2.1750","DOIUrl":"https://doi.org/10.20428/jst.v25i2.1750","url":null,"abstract":"This paper uses the CFD technique to simulate the internal environment of a hospital operating room, including the surgical area that includes the patientand the surgical team. Moreover, this work provides mathematical simulation of many models to be placed in the air entry and air exit areas in the operating room to obtainthe optimal model of air distribution within the operating room. The results obtained matched well with experimental data from approved literature and standards. These results found that airflow and air velocity significantly affect the patient’s thermal comfort in the operating room.Besides, it is observed that some recirculation zone is formed, and this is a result of the heat generated by the surgical team and the accelerated air. This region is considered a source for the survival of the polluted air in the room. \u0000Keywords: CFD, Operating room, Numerical analysis.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76414026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Modelling system is the core for the evaluation of water related sectors in the Sana’a Basin. The numerical modelling (MODFLOW) has emerged as an effective tool for managing groundwater resources and predicting future responses, especially when dealing with complex aquifers systems and heterogeneous formations. MODFLOW model has been used herein as a management tool for the targeted sub- basins in Sana’a Basin such (Wadi Bani Hawat, Wadi Dhahr & Al-Ghayl, Wadi Hamdan & As Sabrahand Wadi Ghayman); the most important groundwater resources for domestic and agricultural sectors in Sana’a basin. A conceptual model was designed according to the actual groundwater dynamic flow system in the 2010 Hydrosult Sana’a Basin Model. Also, the governing partial parabolic differential equation was defined, including the vertical conductivity flow between the aquifers. Total groundwater abstraction values from previous studies were compiled, including the 2015 well inventory data of National Water Resources Authority –Sana’a Basin.In this study, three simulations of groundwater development scenarios were distinguished. The first scenario is applied for evaluation of the present status and till 2025. The second and thethird scenarios are focused on the effect of water augmentation i.e. decrease the present rate of groundwater abstraction to 30% and 50% respectively, with considering the highly intervention of IWRM structure of Sana’a basin on the on-going activities related to change land use, change crop pattern, value chain, marketing, modern irrigation techniques, water harvesting techniques, treated waste reuse etc…. Also other Modules were used in calculating the groundwater demand, deficit and unemployment in agricultural sector inSana’a Basin. Scenario 3 gives a remarkable improvement of the water resources system in the four sub-basins within a reasonable period (in the year 2025), thus, it will keep the water resources sustainability; but the unemployment in agricultural sector in Sana’a Basin in scenario 3 will be is the highest value if comparing with the other two scenarios. It will reachin 2025 under scenario 2 and scenario 3 to 10432 and 14762 respectively while in scenario 1 the unemployment will disappeared in 2025. This study is recommended that irrigation systems should be improved, usage of harvesting water methods and treated waste water reuse for agriculture to avoid the depletion of Sana’ Basin aquifer and to reduce unemployment in agricultural sector in Sana’a Basin. Keywords: Groundwater Flow Model, MODFLOW, Management Scenarios, Sana’a Basin, Targeted Sub-Basins.
{"title":"Modeling Water Supply and Demand for Effective Water Management in the Sana’a Basin in Yemen","authors":"Zamzam Mubarak, Wail Alderwish","doi":"10.20428/JST.25.2.2","DOIUrl":"https://doi.org/10.20428/JST.25.2.2","url":null,"abstract":"Modelling system is the core for the evaluation of water related sectors in the Sana’a Basin. The numerical modelling (MODFLOW) has emerged as an effective tool for managing groundwater resources and predicting future responses, especially when dealing with complex aquifers systems and heterogeneous formations. MODFLOW model has been used herein as a management tool for the targeted sub- basins in Sana’a Basin such (Wadi Bani Hawat, Wadi Dhahr & Al-Ghayl, Wadi Hamdan & As Sabrahand Wadi Ghayman); the most important groundwater resources for domestic and agricultural sectors in Sana’a basin. A conceptual model was designed according to the actual groundwater dynamic flow system in the 2010 Hydrosult Sana’a Basin Model. Also, the governing partial parabolic differential equation was defined, including the vertical conductivity flow between the aquifers. Total groundwater abstraction values from previous studies were compiled, including the 2015 well inventory data of National Water Resources Authority –Sana’a Basin.In this study, three simulations of groundwater development scenarios were distinguished. The first scenario is applied for evaluation of the present status and till 2025. The second and thethird scenarios are focused on the effect of water augmentation i.e. decrease the present rate of groundwater abstraction to 30% and 50% respectively, with considering the highly intervention of IWRM structure of Sana’a basin on the on-going activities related to change land use, change crop pattern, value chain, marketing, modern irrigation techniques, water harvesting techniques, treated waste reuse etc…. Also other Modules were used in calculating the groundwater demand, deficit and unemployment in agricultural sector inSana’a Basin. Scenario 3 gives a remarkable improvement of the water resources system in the four sub-basins within a reasonable period (in the year 2025), thus, it will keep the water resources sustainability; but the unemployment in agricultural sector in Sana’a Basin in scenario 3 will be is the highest value if comparing with the other two scenarios. It will reachin 2025 under scenario 2 and scenario 3 to 10432 and 14762 respectively while in scenario 1 the unemployment will disappeared in 2025. This study is recommended that irrigation systems should be improved, usage of harvesting water methods and treated waste water reuse for agriculture to avoid the depletion of Sana’ Basin aquifer and to reduce unemployment in agricultural sector in Sana’a Basin. \u0000Keywords: Groundwater Flow Model, MODFLOW, Management Scenarios, Sana’a Basin, Targeted Sub-Basins.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77315039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Osama Al-Jailani, F. Al-Nozaily, Tarek Al-Hibshi, Zamzam Mubarak
The Integrated Water Resource Management (IWRM) is considered to be a key in achieving a sustainable improved WASH sector. Water supply and sanitation are among the most essential sectors of development Enhancement of community water supplies and sanitation results in improved social, economic conditions and health. Students are likely to be affected in different ways by inadequate Water, Sanitation and Hygiene (WASH) conditions in schools and universities, so this may contribute to reduce in getting the right learning opportunities. Due to the importance of the WASH sector in improving the community’s level and standards, this paper will help to assess the WASH at Sana’a University.A multi-disciplinary approach to reach the objective targeted in this paper has been used; an intensive literature review has been done, a closedended questionnaire was developed with the help of some INGOs standards such as WHO, UNICEF and Sphere to collect the required data from the beneficiaries, a checklist was developed and used to acquire the requireddata and information from the fields and meet face-to-face with the key informants of each faculty, and all the collected data and information are analyzed with the help of Kobo Toolbox. The findings of the research showed that water shortages and inadequate sanitation were due to weak infrastructure although its own a very strong infrastructure; systems were not repaired or maintained and fell into disuse. In addition, the water supply shortages were also due to insufficient water capacity, physical contaminatedexisting water sources, lack of communication between university officials, and the obstacles to (WASH) sector which include lack of human resources, lack of financial resources, and unclear roles and responsibilities. The recommendation was based on the findings and related issues with water institution, water sector and resource, sanitation, and hygiene in addition to NGOs to support the university WASH infrastructure.Keywords: Water, Sanitation and Hygiene (WASH), Sana’a University, KoboToolbox and IWRM.
{"title":"Evaluation of WASH at Sana’a University as per IWRM Perspective","authors":"Osama Al-Jailani, F. Al-Nozaily, Tarek Al-Hibshi, Zamzam Mubarak","doi":"10.20428/JST.25.2.3","DOIUrl":"https://doi.org/10.20428/JST.25.2.3","url":null,"abstract":"The Integrated Water Resource Management (IWRM) is considered to be a key in achieving a sustainable improved WASH sector. Water supply and sanitation are among the most essential sectors of development Enhancement of community water supplies and sanitation results in improved social, economic conditions and health. Students are likely to be affected in different ways by inadequate Water, Sanitation and Hygiene (WASH) conditions in schools and universities, so this may contribute to reduce in getting the right learning opportunities. Due to the importance of the WASH sector in improving the community’s level and standards, this paper will help to assess the WASH at Sana’a University.A multi-disciplinary approach to reach the objective targeted in this paper has been used; an intensive literature review has been done, a closedended questionnaire was developed with the help of some INGOs standards such as WHO, UNICEF and Sphere to collect the required data from the beneficiaries, a checklist was developed and used to acquire the requireddata and information from the fields and meet face-to-face with the key informants of each faculty, and all the collected data and information are analyzed with the help of Kobo Toolbox. The findings of the research showed that water shortages and inadequate sanitation were due to weak infrastructure although its own a very strong infrastructure; systems were not repaired or maintained and fell into disuse. In addition, the water supply shortages were also due to insufficient water capacity, physical contaminatedexisting water sources, lack of communication between university officials, and the obstacles to (WASH) sector which include lack of human resources, lack of financial resources, and unclear roles and responsibilities. The recommendation was based on the findings and related issues with water institution, water sector and resource, sanitation, and hygiene in addition to NGOs to support the university WASH infrastructure.Keywords: Water, Sanitation and Hygiene (WASH), Sana’a University, KoboToolbox and IWRM.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84361651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper uses the CFD technique to simulate the internal environment of a hospital operating room, including the surgical area that includes the patientand the surgical team. Moreover, this work provides mathematical simulation of many models to be placed in the air entry and air exit areas in the operating room to obtainthe optimal model of air distribution within the operating room. The results obtained matched well with experimental data from approved literature and standards. These results found that airflow and air velocity significantly affect the patient’s thermal comfort in the operating room.Besides, it is observed that some recirculation zone is formed, and this is a result of the heat generated by the surgical team and the accelerated air. This region is considered a source for the survival of the polluted air in the room. Keywords: CFD, Operating room, Numerical analysis.
{"title":"CFD Simulation of Air Pollution Distribution and Its Effect on Patients in Hospital Operating Rooms","authors":"E. Saif, Abdulrazzak Akroot, A. Asaad","doi":"10.20428/JST.25.2.1","DOIUrl":"https://doi.org/10.20428/JST.25.2.1","url":null,"abstract":"This paper uses the CFD technique to simulate the internal environment of a hospital operating room, including the surgical area that includes the patientand the surgical team. Moreover, this work provides mathematical simulation of many models to be placed in the air entry and air exit areas in the operating room to obtainthe optimal model of air distribution within the operating room. The results obtained matched well with experimental data from approved literature and standards. These results found that airflow and air velocity significantly affect the patient’s thermal comfort in the operating room.Besides, it is observed that some recirculation zone is formed, and this is a result of the heat generated by the surgical team and the accelerated air. This region is considered a source for the survival of the polluted air in the room. \u0000Keywords: CFD, Operating room, Numerical analysis.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86931129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Integrated Water Resource Management (IWRM) is considered to be a key in achieving a sustainable improved WASH sector. Water supply and sanitation are among the most essential sectors of development Enhancement of community water supplies and sanitation results in improved social, economic conditions and health. Students are likely to be affected in different ways by inadequate Water, Sanitation and Hygiene (WASH) conditions in schools and universities, so this may contribute to reduce in getting the right learning opportunities. Due to the importance of the WASH sector in improving the community’s level and standards, this paper will help to assess the WASH at Sana’a University.A multi-disciplinary approach to reach the objective targeted in this paper has been used; an intensive literature review has been done, a closedended questionnaire was developed with the help of some INGOs standards such as WHO, UNICEF and Sphere to collect the required data from the beneficiaries, a checklist was developed and used to acquire the requireddata and information from the fields and meet face-to-face with the key informants of each faculty, and all the collected data and information are analyzed with the help of Kobo Toolbox. The findings of the research showed that water shortages and inadequate sanitation were due to weak infrastructure although its own a very strong infrastructure; systems were not repaired or maintained and fell into disuse. In addition, the water supply shortages were also due to insufficient water capacity, physical contaminatedexisting water sources, lack of communication between university officials, and the obstacles to (WASH) sector which include lack of human resources, lack of financial resources, and unclear roles and responsibilities. The recommendation was based on the findings and related issues with water institution, water sector and resource, sanitation, and hygiene in addition to NGOs to support the university WASH infrastructure.Keywords: Water, Sanitation and Hygiene (WASH), Sana’a University, KoboToolbox and IWRM.
{"title":"Evaluation of WASH at Sana’a University as per IWRM Perspective","authors":"Osama Al-Jailani, Fadhl Al-Nozaily, Tarek Al-Hibshi, Zamzam Mubarak","doi":"10.20428/jst.v25i2.1752","DOIUrl":"https://doi.org/10.20428/jst.v25i2.1752","url":null,"abstract":"The Integrated Water Resource Management (IWRM) is considered to be a key in achieving a sustainable improved WASH sector. Water supply and sanitation are among the most essential sectors of development Enhancement of community water supplies and sanitation results in improved social, economic conditions and health. Students are likely to be affected in different ways by inadequate Water, Sanitation and Hygiene (WASH) conditions in schools and universities, so this may contribute to reduce in getting the right learning opportunities. Due to the importance of the WASH sector in improving the community’s level and standards, this paper will help to assess the WASH at Sana’a University.A multi-disciplinary approach to reach the objective targeted in this paper has been used; an intensive literature review has been done, a closedended questionnaire was developed with the help of some INGOs standards such as WHO, UNICEF and Sphere to collect the required data from the beneficiaries, a checklist was developed and used to acquire the requireddata and information from the fields and meet face-to-face with the key informants of each faculty, and all the collected data and information are analyzed with the help of Kobo Toolbox. The findings of the research showed that water shortages and inadequate sanitation were due to weak infrastructure although its own a very strong infrastructure; systems were not repaired or maintained and fell into disuse. In addition, the water supply shortages were also due to insufficient water capacity, physical contaminatedexisting water sources, lack of communication between university officials, and the obstacles to (WASH) sector which include lack of human resources, lack of financial resources, and unclear roles and responsibilities. The recommendation was based on the findings and related issues with water institution, water sector and resource, sanitation, and hygiene in addition to NGOs to support the university WASH infrastructure.Keywords: Water, Sanitation and Hygiene (WASH), Sana’a University, KoboToolbox and IWRM.","PeriodicalId":21913,"journal":{"name":"Songklanakarin Journal of Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80352726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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