Journal of Sustainability Science and Technology最新文献

Liver histology of Wistar rats (Rattus norvegicus) following oral administration of 50% ethanol 口服50%乙醇对褐家鼠肝脏组织学的影响

Journal of Sustainability Science and Technology Pub Date : 2022-06-06 DOI: 10.23960/josst.v2i1.21

Liah Kodariah, Rahmad Rezaldy, Suryanata Kesuma, Farhan Baehaki

{"title":"Liver histology of Wistar rats (Rattus norvegicus) following oral administration of 50% ethanol","authors":"Liah Kodariah, Rahmad Rezaldy, Suryanata Kesuma, Farhan Baehaki","doi":"10.23960/josst.v2i1.21","DOIUrl":"https://doi.org/10.23960/josst.v2i1.21","url":null,"abstract":"Ethanol, also known as ethyl alcohol, pure alcohol, and alcohol, is a toxic, volatile, flammable, and colourless liquid. Alcohol is the most commonly consumed alcoholic beverage in everyday life. EtOH is a common abbreviation for ethanol, where \"Et\" stands for the ethyl group (C2H5). Sugar fermentation to ethanol is one of the earliest organic reactions ever performed by humans; ethanol consumption has also been known for a very long time. This study aims to determine the histology of the liver in Wistar rats (Rattus norvegicus) by orally administering ethanol at a concentration of 50 percent. The method used in this study was an experimental study by looking at the histology of rat liver. Rats were divided into two groups, with seven rats each. Group 1 was given 50% ethanol orally for seven days, and group 2, as a control, was only given orally with distilled water. After seven days, the rats were slaughtered, and their livers were extracted for further histological preparations. In the histology results of group 1, the histological images of the livers of the rats P1, P2, P3, P4, P5, P6 and P7 were abnormal or damaged. In the presence of necrotic cells, oral administration of 50 percent alcohol causes damage to hepatocyte cells, as determined by the study's findings. However, in general, hepatocyte cell damage in the liver produces a score of 1.7, which indicates a change leading to cell damage.","PeriodicalId":153391,"journal":{"name":"Journal of Sustainability Science and Technology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125521539","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}

引用次数: 1

Human resource management system with human relations perspective in the industrial revolution 4.0 era in high schools 工业革命4.0时代的高中人际关系视角的人力资源管理系统

Journal of Sustainability Science and Technology Pub Date : 2022-06-06 DOI: 10.23960/josst.v2i1.19

Anongsack Mahavong

引用次数: 0

The impact of toll road exit infrastructure development on land use and land values in adjacent areas (Case: eastern toll road exit in Probolinggo Regency) 收费公路出口基础设施发展对邻近地区土地利用和土地价值的影响(以Probolinggo县东部收费公路出口为例)

Journal of Sustainability Science and Technology Pub Date : 2022-06-06 DOI: 10.23960/josst.v2i1.15

Okky Fransila Arganata, Deva Fosterharoldas Swasto

{"title":"The impact of toll road exit infrastructure development on land use and land values in adjacent areas (Case: eastern toll road exit in Probolinggo Regency)","authors":"Okky Fransila Arganata, Deva Fosterharoldas Swasto","doi":"10.23960/josst.v2i1.15","DOIUrl":"https://doi.org/10.23960/josst.v2i1.15","url":null,"abstract":"The development of trans-Java road infrastructure is intended to increase regional accessibility and mobility. Probolinggo Regency is one of the regencies traversed by the Trans Java Road, one of its six toll road exits being the eastern toll road exit. By comparing conditions before and after the existence of the eastern toll road exit, this study sought to investigate changes in land usage and land values in the vicinity of the exit. This study employed a qualitative method, collecting data through in-depth interviews and observation. The results indicate that the identification of land use changes after the construction of the toll road exit is not significant because the changes occurred at a greater distance from the location of the exit. By designating the region as toll road infrastructure, settlements, and areas of activity, the paddy fields and dry fields surrounding the exit have been transformed into built-up land. However, since the construction of the eastern toll road exit, land value fluctuations have climbed by between 104% and 140%. In other words, the presence of constructed infrastructure does not necessarily have a direct effect on land-use changes. Nonetheless, it can have a substantial impact on land prices in settlements near the toll road exit.","PeriodicalId":153391,"journal":{"name":"Journal of Sustainability Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129006567","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}

引用次数: 0

Connections between air pollution, traffic and respiratory health 空气污染、交通和呼吸系统健康之间的联系

Journal of Sustainability Science and Technology Pub Date : 2022-06-06 DOI: 10.23960/josst.v2i1.18

Diya Peng

引用次数: 1

Analysis of Rhodamine B content in shrimp paste at Ciroyom Market, Bandung City, West Java, Indonesia 印度尼西亚西爪哇万隆市Ciroyom市场虾膏中罗丹明B含量分析

Journal of Sustainability Science and Technology Pub Date : 2022-06-06 DOI: 10.23960/josst.v2i1.22

R. G. Mahardika, Farhan Baehaki, Heru Agung Saputra, Septiani Yusuf

{"title":"Analysis of Rhodamine B content in shrimp paste at Ciroyom Market, Bandung City, West Java, Indonesia","authors":"R. G. Mahardika, Farhan Baehaki, Heru Agung Saputra, Septiani Yusuf","doi":"10.23960/josst.v2i1.22","DOIUrl":"https://doi.org/10.23960/josst.v2i1.22","url":null,"abstract":"According to regulation number 722/MENKES/Per/IX/88 of the Minister of Health of the Republic of Indonesia, Rhodamine B is one of the dangerous dyes, and its use in food products is prohibited. Rhodamine B can cause adverse health effects including irritation, impaired liver function, and liver cancer. Although it has been banned, the use of Rhodamine B is still prevalent in the community's food supply, including shrimp paste. This can be observed in some of the shrimp pastes sold at the Ciroyom market in Bandung, which are bright red, uneven, and comprised of lumps. This study aims to determine the Rhodamine B content of shrimp paste sold at Ciroyom Market in Bandung, West Java, Indonesia. This research is descriptive in nature and employed a total sampling technique. Rhodamine B was analyzed in ten samples of commercially available red shrimp paste using a UV-Vis Spectrophotometer with a 565 nm wavelength. The results indicate that Rhodamine B was found in all samples, with concentrations ranging from 1.79 ppm to 3.999 ppm. Therefore, it can be concluded that widespread abuse of Rhodamine B in food ingredients persists among the residents of Bandung City, West Java, Indonesia.","PeriodicalId":153391,"journal":{"name":"Journal of Sustainability Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130242081","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}

引用次数: 0

Evaluation of soil replacement and cement grout injection in soil settlement 土壤沉降补土与注浆效果评价

Journal of Sustainability Science and Technology Pub Date : 2021-12-17 DOI: 10.23960/josst.v1i2.9

Arief Andriansyah, L. Afriani, D. Kusumastuti, E. P. Wahono

{"title":"Evaluation of soil replacement and cement grout injection in soil settlement","authors":"Arief Andriansyah, L. Afriani, D. Kusumastuti, E. P. Wahono","doi":"10.23960/josst.v1i2.9","DOIUrl":"https://doi.org/10.23960/josst.v1i2.9","url":null,"abstract":"This paper discusses the process of original soil stabilization in Trans Sumatra Bakauheni-Terbanggi Besar Toll Road Project Package 2 Sidomulyo-Kotabaru. The soil replacement process was conducted at approximately 24 kilometres along the toll’s main road. The original soil bearing capacity analysis stage was by performing a Dynamic Cone Penetrometer (DCP) and Sondir test to analyze the deep of hard soil. A soil replacement was carried out to replace the original soil with soil that has appropriate specification. the piling up process was conducted in stages, which has Sandstone in such of the layer. The research done about the landfill sample was retaken and collected at 68 points. The stockpile soil samples collection was then followed by the analysis which was conducted in the laboratory to find the soil bearing capacity. There are 4 types of bearing capacity parameters analyzed, namely specific gravity, water content, aggregate analysis (Sieve Analysis), and consistency limit (Atterberg Limit). Referring to it, then there was the classification of soil types according to AASHTO M145 & Casagrande Soil Classification System. A point that has settlement after soil replacement is STA 52+000. So, there need to add soil stabilization, that is cement grout injection. Researchers analyzed the soil settlement by interpretation method. Results showed that soil replacement and cement grout injection could decrease a soil settlement by about 15.07 cm to become 0.93 cm.","PeriodicalId":153391,"journal":{"name":"Journal of Sustainability Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129493180","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}

引用次数: 0

Air quality analysis through measurement of pb levels in blood using atomic absorption spectrophotometer 原子吸收分光光度计测定血液中铅含量分析空气质量

Journal of Sustainability Science and Technology Pub Date : 2021-12-17 DOI: 10.23960/josst.v1i2.13

Uitumen Erdenezul

引用次数: 0

Development and validation of chemistry learning videos as learning media in the era of the COVID-19 pandemic 新冠肺炎大流行时代化学学习视频学习媒体的开发与验证

Journal of Sustainability Science and Technology Pub Date : 2021-12-17 DOI: 10.23960/josst.v1i2.12

Sara Pimenta

引用次数: 1

Induction of Rhizoctonia resistance to odontoglossum ringspot virus (ORSV) infection on orchid leaf organ viability 根丝核菌抗牙釉质环斑病毒(ORSV)对兰叶器官活力的诱导作用

Journal of Sustainability Science and Technology Pub Date : 2021-11-17 DOI: 10.23960/josst.v1i2.4

Eka Nuraini Tohari, Mahfut Mahfut, T. T. Handayani, S. Wahyuningsih

{"title":"Induction of Rhizoctonia resistance to odontoglossum ringspot virus (ORSV) infection on orchid leaf organ viability","authors":"Eka Nuraini Tohari, Mahfut Mahfut, T. T. Handayani, S. Wahyuningsih","doi":"10.23960/josst.v1i2.4","DOIUrl":"https://doi.org/10.23960/josst.v1i2.4","url":null,"abstract":"Orchid plants are in great demand by the public as ornamental plants that have economic value and the beauty of attractive flower shapes and colors, especially Phalaenopsis and Dendrobium. Related to this, conservation efforts are needed through cultivation. However, these efforts are often hampered by viral infections. One of the viruses that trigger inhibition of orchid cultivation that often appears is ORSV. Control efforts that are relatively safe and efficient can utilize mycorrhizae in orchids which play a role in increasing the absorption of plant nutrients. The use of Phalaenopsis and Dendrobium with the induction of Rhizoctonia sp. against ORSV is a very important alternative biofertilizer and biocontrol agent. The objectives of this study were 1) to determine the effectiveness of orchids induced by Rhizoctonia resistance, 2) to determine the viability of orchid leaf organs to ORSV infection, 3) to determine the viability of orchid root organs resulting from Rhizoctonia resistance to ORSV infection. This study was conducted in January 2021 – March 2021 at the Botanical 2 Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, University of Lampung. This study employed a completely randomized factorial with 6 treatments and 4 replications. The variable observed in this study was the effectiveness of mycorrhizae, leaf and root length, number of leaves and roots, and leaf width. The data obtained were homogenized using Levene's test and then analyzed by ANOVA and Tukey's further test at the 5% level. The results showed that the effectiveness of mycorrhizae occurred on the 3rd day of incubation. In leaf organs, Phalaenopsis amabilis showed an increased response and Dendrobium discolour showed a decreased response in leaf length, width, and number. Meanwhile, in the root organ, Dendrobium discolour showed an increased response and Phalaenopsis amabilis showed a decreased response in root length and number of roots. \u0000 ","PeriodicalId":153391,"journal":{"name":"Journal of Sustainability Science and Technology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131288920","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}

引用次数: 2

Various ORSV infection symptoms on ceratorhiza induction in orchid plants 兰花植物蠓诱导的多种ORSV感染症状

Journal of Sustainability Science and Technology Pub Date : 2021-11-17 DOI: 10.23960/josst.v1i2.5

Mitha valentina treesya Panjaitan, Mahfut Mahfut, T. T. Handayani, S. Wahyuningsih

{"title":"Various ORSV infection symptoms on ceratorhiza induction in orchid plants","authors":"Mitha valentina treesya Panjaitan, Mahfut Mahfut, T. T. Handayani, S. Wahyuningsih","doi":"10.23960/josst.v1i2.5","DOIUrl":"https://doi.org/10.23960/josst.v1i2.5","url":null,"abstract":"Several types of orchids that are in great demand and cultivated by various groups are Phalaenopsis sp. and Dendrobium sp. Mycorrhizae are needed by orchid plants to complete their life cycle. This is because mycorrhizae are capable of symbiosis with the root system of the host plant so that the plant's capacity to absorb elements will increase. This study aims to determine the extent to which Ceratorhiza induction on Phalaenopsis amabilis and Dendrobium discolour orchids can suppress the symptoms of Odontoglossum ringspot virus (ORSV) infection. The method used in this study was a factorial completely randomized design (CRD) with 2 factors and 4 replications. The first factor is the type of orchid used, namely Phalaenopsis amabilis (A1) and Dendrobium discolour (A2), while the second factor is the type of administration of mycorrhizae, viruses, and mycorrhizal viruses. Observation of disease symptoms is done by looking at the symptoms that appear on leaves that have been infected with ORSV. The results showed that the symptoms that appeared in Phalaenopsis amabilis were in the form of mosaic, necrosis, leaf malformation, while in Dendrobium discolour were mosaic and necrotic. Ceratorhiza was not able to suppress the symptoms of disease infection because based on the results obtained; the treatment on orchids inoculated with mycorrhizae and viruses showed more severe symptoms compared to the treatment only inoculated with viruses increased response and Dendrobium discolours showed a decreased response in leaf length, width, and number. Meanwhile, in the root organ, Dendrobium discolour showed an increased response and Phalaenopsis amabilis showed a decreased response in root length and number of roots.","PeriodicalId":153391,"journal":{"name":"Journal of Sustainability Science and Technology","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132490912","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}

引用次数: 1