This research is to apply and develop a strategy of problem-based learning to increase the ability of higher order thinking skills of senior vocational schools students. The research was done due to a fact that the quality of outputs of the senior vocational schools has not met the competency needed by the stakeholders in the field, that has made the outputs difficult to get jobs, or fail to run a private business of their own. This research is a quasi experiment applying Nonequivalent Control Group Design, done at X TKR 1 class of 38 students and X TKR 2 class of 38 students of Senior Vocational School II, Kupang, NTT Province, Indonesia. The normality and homogeneity of tests were done to obtain the test of analysis requirement. T-test was done to analyze the data obtained. The results show that: (1) the use of problem-based learning strategy is superior to the conventional study; (2) the application of problem-based learning strategies capable of improving high order thinking skills of students, which is implemented in problem solving skills, teamwork, and self-confidence better. (3) in the future, the high order thinking skills will be very important in winning the job competition, find solutions to problems in the workplace and establish good cooperation with others, so it will support the success of their careers in the future.
Introduction: Microplastics have become a pollution problem that has received worldwide attention. Microplastics in the water impact the environment and health, especially in Indonesia, which is the second-largest plastic waste contributor in the world. This literature study aims to determine the distribution of microplastics pollution in waters and its impact on health and the environment in Indonesia.Methods: The literature search on papers from 2010-2021 through Google Scholar, Pubmed, ScienceDirect, and ProQuest, with the keywords of ‘Microplastics’, ‘Indonesia’, ‘aquatic’, ‘environment’ found 477 articles. Then, after the exclusion of duplicate articles, and other inclusion criteria, the final review was done on 42 articles. PRISMA guidelines were used for reviewing the procedure.Results: Most microplastic research was conducted in Java Island, which is dominated by rivers and beaches. Based on the source, microplastics came from domestic waste, tourism, and fishing activities. The most common forms found were black and blue fibers from fishing lines, nets, and clothing fibers of various sizes. The type of polymer identified is polyethylene plastic. Microplastics impacted tourist destinations, marine ecosystems through the food chain, and also humans who consume seafood.Conclusion: Microplastics are found in the Indonesian marine environment. Humans can consume seafood contaminated with microplastics, which will have an impact on health. Therefore, a health risk assessment should be done to provide information for taking environmental management efforts.
This study was intended to: (1) describe the results of the development of the Life Skill integrated Science-PBL module, (2) analyze the feasibility of the Life Skill integrated Science-PBL module, and (3) oversee the effectiveness of the module to improve critical thinking skills of students at the secondary school level. The development model used was the 4D Thiagarajan model which consisted of four stages of development, namely define, design, develop, and disseminate. The study sample was taken as many as 97 students from three different schools. The data collection instruments were questionnaires, observation sheets, and tests of critical thinking skills. The feasibility test involved material and media expert lecturers, as well as practitioners. The effectiveness of the module was measured by finding a normalized gain score for the pretest-posttest conducted during a field trial or implementation trial. The results suggested that the Life Skill integrated Science-PBL module was suitable for use in the learning process based on the results of the validation of experts and practitioners. The calculation of the N-gain obtained the value of 0.72, which meant that the Life Skill integrated Science-PBL module was effective in improving students' critical thinking skills. The results of the questionnaire analysis of student and teacher responses showed that overall, the module received good responses.
BACKGROUND: Microplastics are able to enter the human body through food chains, personal care products, contact (skin) from the soil, water or inhalation of microplastics in the air. AIM: This article aims to identify the presence of microplastics that are exposed to humans. METHODS: Systematic review using four bibliographic databases (Google Scholar, Wiley Online Library, PubMed, and Science Direct). Literature search from 2016 to 2021, in the search found as many as 10983 papers extracted using PRISMA guidelines, a total of five papers were selected for review. RESULTS: In this review article, the presence of oral, dermal, and inhalation exposed microplastics is found in feces, colon, placenta, scalp hair, hand skin, facial skin, and saliva. Several methods are used to identify microplastics according to polymer types, shape, and sizes microplastics in humans. The polymer type often found in the article is polypropylene. In addition, fibers, fragments and films are detectable shape of microplastic, while the size of microplastics >5 mm. CONCLUSION: This literature study provides evidence that microplastics of various types of polymers, shapes and sizes are ubiquitous in humans. Hence, the possibility of health risks resulting from microplastic exposure in the human body should not be ignored.
Limbah batang pisang bisa diolah berbagai produk yang lebih bermanfaat. Limbah batang pisang memiliki kandungan yang berperan besar dalam pupuk organik dan belum banyak dimanfaatkan sebagai bahan dasar pupuk organik cair (POC). POC lebih mudah digunakan karena cepat meresap dan dapat digunakan langsung tanpa merusak tanaman. Kegiatan Pengabdian dilaksanakan di Desa Penganjang Kecamatan Sindang Kabupaten Indramayu. Pengabdian ini berupa penyuluhan dan praktik dalam pembuatan pupuk organik cair. Ceramah, tanya jawab, diskusi dan latihan, semuanya digunakan sebagai pendekatan pelatihan. Indikator keberhasilan kegiatan pengabdian masyarakat ini adalah masyarakat memiliki tambahan pengetahuan dan mampu mengolah limbah organik menjadi POC. Saran untuk kegiatan selanjutnya perlu diadakan lebih banyak lagi pelatihan-pelatihan sejenis yang dapat memperkuat potensi kreatif masyarakat.
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