Kemampuan Kerang Hijau (Perna viridis) Mengakumulasi Plutonium Melalui Jalur Air Laut

Budiawan, Budiawan; Febriana, Nur Hidayati; Suseno, Heny

doi:10.15408/jkv.v5i1.7730

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…The concept of endocytosis and exocytosis processes with the indicator "Comparing the processes of (Haucke & Kozlov, 2018). The exocytosis process is the movement of molecules from intracellular to extracellular, by means of vesicles or membrane-bound pockets, which are generally made from the Golgi apparatus (Budiawan et al, 2019).…”

Section: Figure 1 Average Percentage Of Students' Misconception Profilementioning

confidence: 99%

Misconception Profile of 11Th Grade High School Students on Membrane Transport Using Three Tier Diagnostic Tests

Azqiya

Rahayu²

2021

BioEdu

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The learning method in Indonesia employed distance learning during the Covid-19 pandemic with the purpose that the Ministry of Education and Culture released a decree number 719/P/2020 on Diagnostic Assessment, of which one was meant to identify misconceptions with the intent that teachers must carry out. Identification of misconceptions needs to be done because it can interfere with the formation of concepts in the next material because there are several concepts that are correlated with other concepts. Cognitive assessment is one tool to recognize students that have misconceptions. The objective of this descriptive evaluative research is to assess the profile of students’ misconceptions and the factors that have contributed to misconceptions faced by students in membrane transport sub materials using the Three Tier Diagnostic Test, and justification of some concepts at the highest misconceptions. The research phase consisted of validation of the test instrument, testing the student using the test instrument, analyzing the outcomes of the sample using a table for grouping students’ conceptions and parameters for deciding the level of misconceptions, and drawing the conclusions. The target of this research is 40 students of State High School 1 Babat in 11th grade that was XI Science 1 and XI Science 2 classes. The findings revealed that the misconception profile of students who understand the concept, do not understand the concept, and have encountered misconceptions were 9.625%; 31.250%; and 59.125% respectively. Students who experienced misconceptions were divided into three criteria for the level of misconception, a namely high misconception by 45.00%, a moderate misconception by 37.50%, and low misconception by 17.50%. Factors that affect the misconceptions faced by students were teacher, teaching method, learning media, students’ textbooks, and including students themselves. This research implies that students experience more misconceptions than understand the concepts. Keywords: Membrane Transport, Misconception Profile, Three Tier Diagnostic Test

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Section: Figure 1 Average Percentage Of Students' Misconception Profilementioning

confidence: 99%

Misconception Profile of 11Th Grade High School Students on Membrane Transport Using Three Tier Diagnostic Tests

Azqiya

Rahayu²

2021

BioEdu

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“…This is presumably due to the adaptation process for shellfish after the shells were removed from their natural habitat. The adaptation time for organisms or biota that live in the research environment occurs to reduce the level of risk of death in biota at the beginning of maintenance, so that later the biota used is not stressful (Budiawan et al, 2019).…”

Section: Depuration Of Water Quality Mediamentioning

confidence: 99%

Microplastic Depuration on Asaphis Detlorata

Saputri

Daud

Syah

et al. 2020

IJPASR

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Depuration is an effort to reduce/eliminate contamination including microplastics, which one is using a water circulation system. This study aims to determine the effective depuration time to reduce the microplastic content in Asaphis detlorata This study used a quantitative approach with experimental research design with a completely randomized design. There are 450 shells used as an experimental animal where is the treatment consisted of four depuration times, namely 1;2;3; and 4 days with 3 repetitions of each treatment, while the control shells were without depuration. Analysis of variance (ANOVA) was used to see the effect of depuration treatment on the microplastic content. If the effect of the treatment was significantly different, then the post hoc test was continued to determine the differences between treatments. The results showed that Asaphis detlorata obtained from the mouth of the Lakatong river estuary were contaminated with microplastics ranging from 0.6 to 8.1 MPs/shellfish and an average of 3.96 MPs/shellfish. Depuration time significantly affected the microplastic content in shellfish depuration effectiveness. There is a tendency that the longer depuration time is decreased microplastic content in shellfish. The effective depuration time to reduce the microplastic content in Asaphis detlorata was 3 and 4 days. Further research is needed for a more effective depuration for cleaning microplastics in shellfish.

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“…However, the number of Plutonium bioaccumulation studies by marine biota is still limited. Experiments on the dynamics of accumulation and elimination of plutonium were carried out in marine mollusks and wildlife mammals [13][14].…”

Section: ■ Introductionmentioning

confidence: 99%

The Impact of <sup>242</sup>Pu Speciation on the Bioaccumulation of Plutonium by <i>Babylonia spirata</i> from Jakarta Bay

et al. 2021

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The research of bioaccumulation Plutonium of Babylonia spirata from Jakarta Bay using 242Pu radiotracer has been conducted. The aquaria experiments were applied by two oxidation states of Pu speciation with three replications. The experiment was carried out by 2 steps, such as uptake and depuration. The bioavailability of 242Pu in the (III) and (IV) oxidation states from sea has been studied for Babylonia spirata. Biokinetics parameters, such as concentration factors (CFss), uptake rate constants (ku), elimination rate constants (ke), bioconcentration factors (BCF), and biological half-life (tb1/2), were investigated. The dissection is carried out to separate the parts of the gastropod's body so that the target organs for Plutonium contamination can be identified. Each part of the gastropod's body was prepared radiochemically and analyzed using an alpha spectrometer. The research shows that Pu4+ is potentially accumulated in greater value than Pu3+ by B. spirata, in which Pu is more rapidly distributed and retained longer in proboscis and gastrointestinal tract.

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Kemampuan Kerang Hijau (Perna viridis) Mengakumulasi Plutonium Melalui Jalur Air Laut

Cited by 4 publications

References 8 publications

Misconception Profile of 11Th Grade High School Students on Membrane Transport Using Three Tier Diagnostic Tests

Misconception Profile of 11Th Grade High School Students on Membrane Transport Using Three Tier Diagnostic Tests

Microplastic Depuration on Asaphis Detlorata

The Impact of <sup>242</sup>Pu Speciation on the Bioaccumulation of Plutonium by <i>Babylonia spirata</i> from Jakarta Bay

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