Development of Learning Media based on Sparkol VideoScribe Integrated with Wondershare Filmora on Geography Subject with Material of Natural Disaster Mitigation. This research aims to know the development of learning media based on Sparkol VideoScribe integrated with Wondershare Filmora on geography subject with material of natural disaster mitigation. This research applies Research and Development (RD) method developed by Borg Gall and adapted to the needs of the researcher. Data collection was conducted using observation, interview, questionnaire, and documentation in which the instrument used in the form of assessment criteria to know the feasibility of the media from the material expert, media expert, and geography teachers as well as students' responses on the learning media by using questionnaires. The collected data is research finding regarding the quality of learning media and suggestions for product revisions. The results of the validation of the material expert, media expert and the geography teacher obtained an average rating of 94.90% which is classified into "extremely valid " category. While the students’ responses based on the results of a limited scale trial obtained a value of 89,88%, which is classified into the “extremely good” category. Then the students’ responses based on the results of the general scale trial obtained a value of 84,59%, which is classified into the “extremely good” category. Thus, it can be concluded that learning media based on Sparkol VideoScribe integrated with Wondershare Filmora on geography subject with the material of natural disaster mitigation can be used as learning media in school and obtained good responses by students.
Small-scale gold mining activities and their mercury emissions in the Gorontalo Utara Regency of the Gorontalo Province, Sulawesi Island, Indonesia, have been studied. The mining occurs in many areas of this region, but especially in the three villages Hulawa, Ilangata and Ilangata Barat. Mining activities in the Hulawa village are the oldest (19th century) in the regency, whereas mining in the Ilangata village began just 15 years ago. The activity level changes rapidly from time to time depending on the fluctuations of the gold market. Women and children are involved in the gold mining process. Female workers crush ore, process sediment wastes, and pan for gold in rivers. Children assist their mothers in these activities and play around the mining sites. Gold mining in the Utara Regency is estimated to produce about 290 kg of gold and emits approximately 860 kg of mercury into the environment annually. The impact of such large mercury release into the environment have caused environmental degradation and contamination of fish as food for humans. Collaborative works of stakeholders are urgently needed to find solutions to the problems related to small-scale gold mining such as marginalization and environmental pollution.
The objective of the study was to examine the levels of mercury concentrations in plants due to the traditional gold mining of Buladu, Sumalata District, Gorontalo Regency. Buladu gold mining was located in Sumalata District, North Gorontalo Regency, Gorontalo Province. Plant samples were taken in 3 locations, namely plants living along the Hulawa River, living near to the tailings and those in residential areas. The number of plants that became the samples along the Hulawa River were 13 samples, 5 samples in the tailings, and 16 samples in residential areas. The total number of plants were as many as 34 samples. The samplings were taken from the roots and leaves so that there were a total of 68 samples. Plant analysis was carried out using mercury analyzer at UGM Integrated Research and Testing Laboratory. The quality standard used as a reference for plants employed the Decree of the Director General of National Agency of Drug and Food Control No: 03725 / B / SK / VII / 89, where mercury levels could not exceed 0.5 mg / kg. Data analysis used tables and graphs and was subsequently interpreted. The results showed that the concentration of mercury in the leaves of plants living along the Hulawa River ranged from 0.00142 mg / kg to 0.41617 mg / l and that in the root ranged from <0.00014 - 14.890 mg / kg. Mercury concentrations in plants living around the tailings in leaves ranged between <0.00014 - 1.30822 and at roots ranging from 0.01058 - 12.59366. In residential areas, the concentration of mercury in leaves ranged from <0.00014-1.44368 mg / kg and in the root ranged from <0.00014-1.94505. Based on these results, the concentration of mercury in plants along the river, around the tailings and in the people’s resident area tended to be above the quality standards set by the Decree of the Director General of National Agency of Drug and Food Control No: 03725 / B / SK / VII / 89.
Artisanal Small-scale Gold Mining (ASGM) in Gorontalo spread across several regions. One is located in the village Bumela, District Bilato, Gorontalo regency. The processing of gold at the mine site Bumela do with the amalgamation method. The purpose of this study is to assess the content of mercury in sediments around the ASGM Bumela. Sediment sampling sites in Totopo River, Motebo River and ASGM Bumela tailings. The number of sampling point sediment in the river are 15 points. The number of sampling point sediment in tailings location is 2 points. Sampling was done by varying the depth of 0-20 cm and 20-40 cm. To determine the concentration of mercury in the sediment used Atomic Absorption Spectroscopy (AAS) without a flame in LPPMHP Gorontalo Province. The quality standard levels of mercury in the sediment used European Safety Standard. The average content of mercury in the sediment was 71.36 mg/kg. The average content of mercury in the tailings is 31.95 mg/kg. The content of mercury in Totopo River, Motebo River and the tailings are exceeding the quality standard of European Safety Standard.
The purpose of the study was to analyze the socioeconomic conditions of the community and their relationship to land degradation in the Alo Pohu watershed, Gorontalo Province. The research method used in this study is a survey method with a total population of 79,828 people. The sampling method is a purposive sampling method with the criteria of people working as farmers determining the number of samples based on the Slovin formula, and the number of samples is 392 people. The socioeconomic parameters studied are education level, knowledge, income, household expenses, land ownership, and the number of dependents. In addition, perceptions and parameters of land degradation are determined based on the criticality level of the land. The data collection method is a questionnaire method. The data analysis used is quantitative and descriptive. A cross-table analyzes the relationship between socioeconomic conditions and land degradation. The results showed three socioeconomic parameters that significantly affected land degradation in the Alo Pohu watershed: education level, land ownership, and knowledge of critical land.
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