Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5431
Peter Letadi Mphai, Z. Worku
A key operational and strategic priority of the City of Tshwane is to ensure satisfactory compliance with occupational health and safety guidelines in business enterprises that are formally registered as well as businesses that operate informally without being formally registered. Formal registration enables businesses to benefit from assistance programmes that are meant for small, micro and medium-sized business enterprises. A report published by the Statistics South Africa (2021) shows that 55.6% of South African businesses are formally registered. A study conducted by Mphai (2022) shows that the main shortcomings in terms of ensuring satisfactory compliance are poor awareness and inability to enforce applicable guidelines and municipal bylaws in business enterprises. As part of the survey, quantitative information was collected from 406 businesses in and around the City of Tshwane. The level of compliance with occupational health and safety guidelines was measured by using a set of 24 standard indicators of compliance with occupational health and safety that are used by the WHO and ILO. The level of compliance in businesses that were chosen for the survey was 53%. By WHO and ILO standards, this level of compliance is inadequate. Recommendations are made with a view to improve the current level of compliance.
{"title":"AN EXPLORATORY STUDY OF PREDICTORS OF COMPLIANCE WITH OCCUPATIONAL HEALTH AND SAFETY GUIDELINES IN EMERGING BUSINESS ENTERPRISES","authors":"Peter Letadi Mphai, Z. Worku","doi":"10.56293/ijasr.2022.5431","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5431","url":null,"abstract":"A key operational and strategic priority of the City of Tshwane is to ensure satisfactory compliance with occupational health and safety guidelines in business enterprises that are formally registered as well as businesses that operate informally without being formally registered. Formal registration enables businesses to benefit from assistance programmes that are meant for small, micro and medium-sized business enterprises. A report published by the Statistics South Africa (2021) shows that 55.6% of South African businesses are formally registered. A study conducted by Mphai (2022) shows that the main shortcomings in terms of ensuring satisfactory compliance are poor awareness and inability to enforce applicable guidelines and municipal bylaws in business enterprises. As part of the survey, quantitative information was collected from 406 businesses in and around the City of Tshwane. The level of compliance with occupational health and safety guidelines was measured by using a set of 24 standard indicators of compliance with occupational health and safety that are used by the WHO and ILO. The level of compliance in businesses that were chosen for the survey was 53%. By WHO and ILO standards, this level of compliance is inadequate. Recommendations are made with a view to improve the current level of compliance.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80501756","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5434
Bernadetha Nadeak, Reno Wikandaru, Shely Cathrin, C. Juwita
This study aims to find and describe the mastery of elementary school teachers in Yogyakarta on the principles of implementing education in the Society 5.0 era. To obtain these results, this study used a qualitative approach. Data collection methods are observation, interviews, and literature study. The subjects in this study were elementary school teachers in Yogyakarta with sampling using purposive sampling technique. The results showed that elementary school teachers in Yogyakarta, SD Islam Al Azhar 31 Yogyakarta, SD Kanisius Wirobrajan 1 Yogyakarta, and SDIT Lukman Al Hakim Yogyakarta had mastered the ten principles of implementing education in the Society 5.0 era.
本研究旨在发现并描述日惹市小学教师对社会5.0时代实施教育原则的掌握程度。为了获得这些结果，本研究采用了定性方法。数据收集方法有观察法、访谈法和文献研究法。本研究以日惹市小学教师为研究对象，采用目的抽样法进行抽样。结果显示，日惹市小学教师、ysl Al Azhar 31日惹市小学教师、Kanisius Wirobrajan 1日惹市小学教师和Lukman Al Hakim日惹市小学教师掌握了实施社会5.0时代教育的十项原则。
{"title":"THE MASTERY OF ELEMENTARY SCHOOL TEACHERS ON THE PRINCIPLES OF EDUCATION IMPLEMENTATION IN THE SOCIETY 5.0 ERA","authors":"Bernadetha Nadeak, Reno Wikandaru, Shely Cathrin, C. Juwita","doi":"10.56293/ijasr.2022.5434","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5434","url":null,"abstract":"This study aims to find and describe the mastery of elementary school teachers in Yogyakarta on the principles of implementing education in the Society 5.0 era. To obtain these results, this study used a qualitative approach. Data collection methods are observation, interviews, and literature study. The subjects in this study were elementary school teachers in Yogyakarta with sampling using purposive sampling technique. The results showed that elementary school teachers in Yogyakarta, SD Islam Al Azhar 31 Yogyakarta, SD Kanisius Wirobrajan 1 Yogyakarta, and SDIT Lukman Al Hakim Yogyakarta had mastered the ten principles of implementing education in the Society 5.0 era.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81115611","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5440
Mkateko Maluleke, M. Muchie, Z. Worku
The study was conducted at Malamulele Central and Malamulele-West educational districts of Vhembe District in Limpopo Province. Data was gathered from 4 schools. Three of the 4 schools were public schools, whereas 1 of the schools was a private school. All 4 schools fall under the same circuit. The study was conducted in order to assess and evaluate the quality of leadership provided by the School Governing Bodies (SGBs) in the 4 schools. The 4 schools were Jim Yingwane High School (Public school), Mahlefunye Primary School (Public school), EPP Mhinga High School (Public school), and Holy Rosary Catholic School (Private or independent school). The total number of students in the 4 schools was 2, 500. Data was collected on a total of 49 variables of the study by using a questionnaire. All 4 schools were under the Malamulele Central and Malamulele-West educational districts of Vhembe District in Limpopo Province. From among the 4 schools, 3 are public schools, whereas 1 is a private schools. All 4 schools fall under the same circuit. Data was collected from 27 members of SGBs and 58 teachers and 20 circuit officials (105 participants of study). Data was collected from 105 eligible participants by using a self-administered questionnaire of study. The quantitative aspect of study entailed collecting data from n=105 respondents. Frequency tables, percentages, pie charts and bar charts were used for summarising results. The results showed that 69 of the 105 respondents (66%) of the 105 respondents were happy with the quality of academic leadership in SGBs. The remaining 36 of the 105 respondents (34%) were not happy with the quality of academic leadership in SGBs.
{"title":"AN EXPLORATORY SURVEY ABOUT THE QUALITY OF TEACHING AND LEARNING IN VHEMBE DISTRICT SCHOOLS","authors":"Mkateko Maluleke, M. Muchie, Z. Worku","doi":"10.56293/ijasr.2022.5440","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5440","url":null,"abstract":"The study was conducted at Malamulele Central and Malamulele-West educational districts of Vhembe District in Limpopo Province. Data was gathered from 4 schools. Three of the 4 schools were public schools, whereas 1 of the schools was a private school. All 4 schools fall under the same circuit. The study was conducted in order to assess and evaluate the quality of leadership provided by the School Governing Bodies (SGBs) in the 4 schools. The 4 schools were Jim Yingwane High School (Public school), Mahlefunye Primary School (Public school), EPP Mhinga High School (Public school), and Holy Rosary Catholic School (Private or independent school). The total number of students in the 4 schools was 2, 500. Data was collected on a total of 49 variables of the study by using a questionnaire. All 4 schools were under the Malamulele Central and Malamulele-West educational districts of Vhembe District in Limpopo Province. From among the 4 schools, 3 are public schools, whereas 1 is a private schools. All 4 schools fall under the same circuit. Data was collected from 27 members of SGBs and 58 teachers and 20 circuit officials (105 participants of study). Data was collected from 105 eligible participants by using a self-administered questionnaire of study. The quantitative aspect of study entailed collecting data from n=105 respondents. Frequency tables, percentages, pie charts and bar charts were used for summarising results. The results showed that 69 of the 105 respondents (66%) of the 105 respondents were happy with the quality of academic leadership in SGBs. The remaining 36 of the 105 respondents (34%) were not happy with the quality of academic leadership in SGBs.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91482606","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5443
A. T. G.
In this project, finite abelian groups with some theoretical and algebraic structures are considered. The order of each group is factorized completely with factor of higher multiplicity where necessary. This unique factorization will allow for a way of building new groups and understanding a given group better. Essentially, it provides a way of relating the given group to the direct products of some of its subgroups. Finally, it also reveals how a group of a finite order is isomorphically related to one of the direct products satisfying certain relatively prime condition.
{"title":"Direct Product of Finite Abelian Group","authors":"A. T. G.","doi":"10.56293/ijasr.2022.5443","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5443","url":null,"abstract":"In this project, finite abelian groups with some theoretical and algebraic structures are considered. The order of each group is factorized completely with factor of higher multiplicity where necessary. This unique factorization will allow for a way of building new groups and understanding a given group better. Essentially, it provides a way of relating the given group to the direct products of some of its subgroups. Finally, it also reveals how a group of a finite order is isomorphically related to one of the direct products satisfying certain relatively prime condition.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73469790","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5432
Myina O. M, A. A. A., Ogundiran O. A.
The pharmaceutical and wellness industries have recourse to nature for guidance, inspiration and as a source of novel compounds to produce new consumer products. Seed oils provide renewable sources of high-value fatty acids for these industries. This work was carried out to establish the oil content ofAzanza garckeana (A. garckeana) seeds (from Tula village, Kaltungo Local Government Area of Gombe State, Nigeria) and the composition of the oil. Soxhlet extraction of A. garckeana seed oil (AGSO) was carried out at 75 oC for 3 h using petroleum ether (60-80 oC) and 42.2 % oil yield was obtained. Thus, A. garckeana seed is a renewable source of seed oil comparable to palm kernel. The AGSO was analyzed for moisture/volatiles (4.0 %), specific gravity (0.926 at 25 oC), refractive index (1.4694 at 25 oC), saponification value (189.0 mg/g), iodine value (80.0 mg I2/g), peroxide value (5.6 meq/kg), acid value (0.56 mg/g) and free fatty acid (0.28 mg/g) using classical standard (AOCS) methods. GCMS analysis of theAGSO revealed its major fatty acids as: linoleic acid (30.0 %), palmitic acid (13.0 %), oleic acid (2.5 %), stearic acid (1.0 %), sterculic acid (0.25 %) and myristic acid (0.19 %). Other major components of the AGSO are n-hexane (43.6 %) and 5-bromo-2,4-bis(methylthio)-pyrimidine (7.8 %). By these results, AGSO is a nondrying oil with omega-6 polyunsaturated fatty acids (PUFA) dominating its fatty acid profile. This suggests that AGSO has the potential to lower risk of coronary heart disease (CHD), reduce total and low-density lipoprotein (LDL) cholesterol as well as correct insulin sensitivity and blood pressure, if used as a dietary replacement for saturated fatty acids. AGSO also presents as a veritable renewable source for n-hexane and a potentially bioactive pyrimidine derivative. Thus, AGSO has the potential of a natural source for nutraceuticals and vital daily supplements or therapeutic remedy in nutrition and/or healthcare.
{"title":"CLASSICAL, GC-MS AND FT-IR CHARACTERIZATION OF AZANZA GARCKEANA SEED OIL","authors":"Myina O. M, A. A. A., Ogundiran O. A.","doi":"10.56293/ijasr.2022.5432","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5432","url":null,"abstract":"The pharmaceutical and wellness industries have recourse to nature for guidance, inspiration and as a source of novel compounds to produce new consumer products. Seed oils provide renewable sources of high-value fatty acids for these industries. This work was carried out to establish the oil content ofAzanza garckeana (A. garckeana) seeds (from Tula village, Kaltungo Local Government Area of Gombe State, Nigeria) and the composition of the oil. Soxhlet extraction of A. garckeana seed oil (AGSO) was carried out at 75 oC for 3 h using petroleum ether (60-80 oC) and 42.2 % oil yield was obtained. Thus, A. garckeana seed is a renewable source of seed oil comparable to palm kernel. The AGSO was analyzed for moisture/volatiles (4.0 %), specific gravity (0.926 at 25 oC), refractive index (1.4694 at 25 oC), saponification value (189.0 mg/g), iodine value (80.0 mg I2/g), peroxide value (5.6 meq/kg), acid value (0.56 mg/g) and free fatty acid (0.28 mg/g) using classical standard (AOCS) methods. GCMS analysis of theAGSO revealed its major fatty acids as: linoleic acid (30.0 %), palmitic acid (13.0 %), oleic acid (2.5 %), stearic acid (1.0 %), sterculic acid (0.25 %) and myristic acid (0.19 %). Other major components of the AGSO are n-hexane (43.6 %) and 5-bromo-2,4-bis(methylthio)-pyrimidine (7.8 %). By these results, AGSO is a nondrying oil with omega-6 polyunsaturated fatty acids (PUFA) dominating its fatty acid profile. This suggests that AGSO has the potential to lower risk of coronary heart disease (CHD), reduce total and low-density lipoprotein (LDL) cholesterol as well as correct insulin sensitivity and blood pressure, if used as a dietary replacement for saturated fatty acids. AGSO also presents as a veritable renewable source for n-hexane and a potentially bioactive pyrimidine derivative. Thus, AGSO has the potential of a natural source for nutraceuticals and vital daily supplements or therapeutic remedy in nutrition and/or healthcare.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83608370","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5442
Nthabiseng Annah Molobela Kgasi, Z. Worku, M. Muchie
Braamfontein is one of the suburbs of Johannesburg which is known for a wide variety of vibrant retail business activities such as restaurants, cafeterias, spaza shops, newspaper shops, clothing, textile, footwear, hair dresser’s shops, tour operators, bus and taxi ranks, hotels and entertainment centres. Braamfontein has retailers from all over the world. A survey was conducted by gathering retail trade data from 586 entrepreneurs in Braamfontein working in footwear and textile retail businesses to determine predictors of profitability. The study found that 406 of the 586 SMMEs in the study (69.28%) were profitable, whereas the remaining 180 of the 586 SMMEs in the study (30.72%) were not profitable. Results obtained from factor analysis and ordered logit regression analysis showed that profitability was significantly influenced by 3 variables of the study. These 3 predictor variables of study were the level of satisfaction of employees with the style of business leadership in the business, use of social media for networking and marketing merchandise to customers, and the ability to check the quality of services rendered to customers by employees of the business.
{"title":"Mediating factors for profitability in textile and footwear retail businesses","authors":"Nthabiseng Annah Molobela Kgasi, Z. Worku, M. Muchie","doi":"10.56293/ijasr.2022.5442","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5442","url":null,"abstract":"Braamfontein is one of the suburbs of Johannesburg which is known for a wide variety of vibrant retail business activities such as restaurants, cafeterias, spaza shops, newspaper shops, clothing, textile, footwear, hair dresser’s shops, tour operators, bus and taxi ranks, hotels and entertainment centres. Braamfontein has retailers from all over the world. A survey was conducted by gathering retail trade data from 586 entrepreneurs in Braamfontein working in footwear and textile retail businesses to determine predictors of profitability. The study found that 406 of the 586 SMMEs in the study (69.28%) were profitable, whereas the remaining 180 of the 586 SMMEs in the study (30.72%) were not profitable. Results obtained from factor analysis and ordered logit regression analysis showed that profitability was significantly influenced by 3 variables of the study. These 3 predictor variables of study were the level of satisfaction of employees with the style of business leadership in the business, use of social media for networking and marketing merchandise to customers, and the ability to check the quality of services rendered to customers by employees of the business.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83989442","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5435
Daniel Shifare Weldeyohannes, Dr. Sabas Kimani, Rev. Dr. John Muhenda
In the philosophical arena, freedom has been tackled beginning from the ancient period. It has been tackled by political philosophers like Thomas Hobbes, John Lock, Jean Jacques Rousseau, and John Swart Mill. They dealt with it from a political perspective as having political ends and means. In the contemporary world, freedom is seen not only from a political view but also from a philosophical and conceptual understanding as fundamental to politics as well. This article through descriptive and analytical methods shows the relevance of Sartrean freedom to society. It shows the ontological understanding of freedom as a principle for practical freedom. Ontological freedom was seen as basic for ontic (material) freedom and so for social freedom as well. However, Sartre’s understanding of concrete liberalism was not enough for social freedom. Therefore, the article concludes that there should be trans-socio-political freedom.
{"title":"Sartrean Freedom and his Idea of Concrete Liberalism","authors":"Daniel Shifare Weldeyohannes, Dr. Sabas Kimani, Rev. Dr. John Muhenda","doi":"10.56293/ijasr.2022.5435","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5435","url":null,"abstract":"In the philosophical arena, freedom has been tackled beginning from the ancient period. It has been tackled by political philosophers like Thomas Hobbes, John Lock, Jean Jacques Rousseau, and John Swart Mill. They dealt with it from a political perspective as having political ends and means. In the contemporary world, freedom is seen not only from a political view but also from a philosophical and conceptual understanding as fundamental to politics as well. This article through descriptive and analytical methods shows the relevance of Sartrean freedom to society. It shows the ontological understanding of freedom as a principle for practical freedom. Ontological freedom was seen as basic for ontic (material) freedom and so for social freedom as well. However, Sartre’s understanding of concrete liberalism was not enough for social freedom. Therefore, the article concludes that there should be trans-socio-political freedom.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73258903","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5441
Talabi A. O, Awoleke S. O, Akinola O. O, Afolagboye L. O
This study investigates and reports petrographic characteristics, geochemical features and the processes of formation of rocks in Ikogosi, southwestern Nigeria. Eighteen (18) rock samples (six quartzite, six migmatite gneiss and six schists) were collected and subjected to optical study. Ten (10) representative samples (six quartzite, three schist and one migmatite gneiss) were evaluated for major elements composition using Energy Dispersive X-Ray Fluorescence (ED-XRF). Petrographic evaluation revealed quartz, feldspar, muscovite, biotite, hornblende, pyroxene and opaque are dominant mineral constituents in quartzite and schist while migmatite gneiss contains the same set of minerals but without opaque constituents. Quartz forms a dominant constituent in quartzite and migmatite gneiss but as subordinate mineral in the schist. The feldspars are mainly plagioclase with albite twinning, associated microcline has characteristic crosshatched twinning. Chemical investigation reveals the rock units are generally siliceous. Three oxides (SiO2, Al2O3 and Fe2O3) constitute 85–90% of the bulk chemical composition of the rocks. SiO2 constituent as applied in rock classification indicates the quartzite is unequivocally felsic, migmatite is intermediate while the schist is mafic to ultramafic. K2O versus SiO2 variation plot revealed that the quartzite and schist are tholeiitic while the migmatite gneiss is shoshonitic. TiO2 versus SiO2 variation diagram depicts igneous antecedent.
{"title":"Petrographic Characteristic and Geochemical features of Basement Rocks in Ikogosi, Southwestern Nigeria.","authors":"Talabi A. O, Awoleke S. O, Akinola O. O, Afolagboye L. O","doi":"10.56293/ijasr.2022.5441","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5441","url":null,"abstract":"This study investigates and reports petrographic characteristics, geochemical features and the processes of formation of rocks in Ikogosi, southwestern Nigeria. Eighteen (18) rock samples (six quartzite, six migmatite gneiss and six schists) were collected and subjected to optical study. Ten (10) representative samples (six quartzite, three schist and one migmatite gneiss) were evaluated for major elements composition using Energy Dispersive X-Ray Fluorescence (ED-XRF). Petrographic evaluation revealed quartz, feldspar, muscovite, biotite, hornblende, pyroxene and opaque are dominant mineral constituents in quartzite and schist while migmatite gneiss contains the same set of minerals but without opaque constituents. Quartz forms a dominant constituent in quartzite and migmatite gneiss but as subordinate mineral in the schist. The feldspars are mainly plagioclase with albite twinning, associated microcline has characteristic crosshatched twinning. Chemical investigation reveals the rock units are generally siliceous. Three oxides (SiO2, Al2O3 and Fe2O3) constitute 85–90% of the bulk chemical composition of the rocks. SiO2 constituent as applied in rock classification indicates the quartzite is unequivocally felsic, migmatite is intermediate while the schist is mafic to ultramafic. K2O versus SiO2 variation plot revealed that the quartzite and schist are tholeiitic while the migmatite gneiss is shoshonitic. TiO2 versus SiO2 variation diagram depicts igneous antecedent.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74086504","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}
Pub Date : 2023-01-01DOI: 10.56293/ijasr.2022.5444
Irunkwor T. C, Abanjo N, Ogboi K. C
The natural radioactivity and radiological hazard indices associated with the consumption of cassava crops grown in five communities with history of oil spillage, gas flaring, oil bunkering activities and operation of illegal artisanal oil refining in Rivers State was assessed and measured with gamma ray spectroscopy. Five samples of cassava crop and five samples of soil were collected from the five communities. The results obtained were used to evaluate the soil-to-cassava transfer factor (TF) due to ingestion of cassava crops/staple foods by inhabitants in the area. The mean activity of soil samples ranged from 17.77±4.20Bq/kg to 31.84±3.20Bq/kg for 238U, 22.75±3.30Bq/kg to 33.82±4.70Bq/kg for 232Th and 110.44±9.60Bq/kg to 483.15±18.20Bq/kg for 40K, and is within permissible standard, but is higher than the mean activity in the control. The mean activity of cassava samples ranged from 6.50±1.30Bq/kg to 29.70±6.20Bq/kg for 238U, 5.80±2.20Bq/kg to 16.50±6.80Bq/kg for 232Th and 383.20±28.10Bq/kg to 482.30±35.80Bq/kg for 40K and is found higher than those of the control samples, and the international permissible limits. The study revealed that although some of the radiological hazard indices in the cassava samples were below the allowable standards, the estimated committed annual effective dose and excess lifetime cancer risk due to ingestion of cassava crops/staple foods is respectively over 2.9 times and 5.9 times higher than the international permissible limit of 0.29mSv/y. The rate of radionuclides transferred from soilto-cassava has mean TF of 232Th < 238U
{"title":"Assessment of Natural Radioactivity and Radiological Hazard indices in Cassava Cultivated in Oil Producing Area, Rivers State, Nigeria","authors":"Irunkwor T. C, Abanjo N, Ogboi K. C","doi":"10.56293/ijasr.2022.5444","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5444","url":null,"abstract":"The natural radioactivity and radiological hazard indices associated with the consumption of cassava crops grown in five communities with history of oil spillage, gas flaring, oil bunkering activities and operation of illegal artisanal oil refining in Rivers State was assessed and measured with gamma ray spectroscopy. Five samples of cassava crop and five samples of soil were collected from the five communities. The results obtained were used to evaluate the soil-to-cassava transfer factor (TF) due to ingestion of cassava crops/staple foods by inhabitants in the area. The mean activity of soil samples ranged from 17.77±4.20Bq/kg to 31.84±3.20Bq/kg for 238U, 22.75±3.30Bq/kg to 33.82±4.70Bq/kg for 232Th and 110.44±9.60Bq/kg to 483.15±18.20Bq/kg for 40K, and is within permissible standard, but is higher than the mean activity in the control. The mean activity of cassava samples ranged from 6.50±1.30Bq/kg to 29.70±6.20Bq/kg for 238U, 5.80±2.20Bq/kg to 16.50±6.80Bq/kg for 232Th and 383.20±28.10Bq/kg to 482.30±35.80Bq/kg for 40K and is found higher than those of the control samples, and the international permissible limits. The study revealed that although some of the radiological hazard indices in the cassava samples were below the allowable standards, the estimated committed annual effective dose and excess lifetime cancer risk due to ingestion of cassava crops/staple foods is respectively over 2.9 times and 5.9 times higher than the international permissible limit of 0.29mSv/y. The rate of radionuclides transferred from soilto-cassava has mean TF of 232Th < 238U","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83316264","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 study focuses on the lateritic gravels of N'DOUCI whose physical properties do not meet the specifications for their use as a road base. Thus, for its use in road construction, a partial substitution of cement by granite powder has been made. Several tests (particle size analysis, chemical analysis, CBR and proctor tests, Atterberg limits, etc.) were carried out to verify the geotechnical and mechanical characteristics of the new material. This study showed that the addition of granite powder in place of cement improved the material properties, i.e. optimum dry density, CBR. The results show that the optimum dry density is 1.95% with a moisture content of 12%. Overall, the results obtained are satisfactory and show that a quantity of 2% cement for 6% granite powder is required for a base course material in road construction. However, it would be useful to use the proportions of 4% cement to 4% granite powder.
{"title":"IMPROVEMENT OF LATERITIC GRAVELLY SOILS IN ROAD CONSTRUCTION: PARTIAL SUBSTITUTION OF CEMENT BY GRANITE POWDER","authors":"Djomo AGRE SERAPHIN, Kouassi KOUAME ALFRED, Thieblesson LYDIE MARCELLE, Kouakou CONAND HONORE","doi":"10.56293/ijasr.2022.5433","DOIUrl":"https://doi.org/10.56293/ijasr.2022.5433","url":null,"abstract":"This study focuses on the lateritic gravels of N'DOUCI whose physical properties do not meet the specifications for their use as a road base. Thus, for its use in road construction, a partial substitution of cement by granite powder has been made. Several tests (particle size analysis, chemical analysis, CBR and proctor tests, Atterberg limits, etc.) were carried out to verify the geotechnical and mechanical characteristics of the new material. This study showed that the addition of granite powder in place of cement improved the material properties, i.e. optimum dry density, CBR. The results show that the optimum dry density is 1.95% with a moisture content of 12%. Overall, the results obtained are satisfactory and show that a quantity of 2% cement for 6% granite powder is required for a base course material in road construction. However, it would be useful to use the proportions of 4% cement to 4% granite powder.","PeriodicalId":13763,"journal":{"name":"International Journal of Applied Science and Engineering Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75289875","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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