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All Journal International Journal of Evaluation and Research in Education (IJERE) Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences Jurnal Pendidikan Biologi Indonesia Biology, Medicine, & Natural Product Chemistry
Mohamad Amin
State University of Malang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Medicine & Pharmacology Public Health

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 1 
Students’ Critical Thinking Improvement Through PDEODE and STAD Combination in The Nutrition and Health Lecture Tabitha Wulandari; Mohamad Amin; Siti Zubaidah; Mimien IAM
International Journal of Evaluation and Research in Education (IJERE) Vol 6, No 2: June 2017
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.166 KB) | DOI: 10.11591/ijere.v6i2.7589

Abstract

Students’ critical thinking skills are very important in the 21st century. Learning strategies can play a role in enhancing students’ critical thinking skills in the Nutrition and Health lecture. The results of a survey in 2013 showed that the implementation of learning strategies had not given students the opportunity to practice their critical thinking skills optimally. The new strategy, a combination of PDEODE and STAD, can be used to overcome the occurring problems. The purpose of this research was to determine the increase in students’ critical thinking skills in the nutrition and health lecture after they were taught using a combination of PDEODE and STAD. This was a pre-experimental research using a one group pretest-posttest research design. The samples of this research were one class consisting of 41 university students. The results of the test were analyzed with quantitative methods, by using statistical analysis, paired samples T-test, and to know the effectiveness using gain scores. The results showed that the significance was 0.000 (p <0.05) and the gain score was 0.58. Thus, it can be concluded that the strategy of combining PDEODE and STAD can effectively improve the students’ critical thinking skills in the nutrition and health lecture.
Developing of instructional media-based animation video on enzyme and metabolism material in senior high school Muhammad Mustofa Yusuf; Mohamad Amin; Nugrahaningsih Nugrahaningsih
JPBI (Jurnal Pendidikan Biologi Indonesia) Vol. 3 No. 3 (2017): NOVEMBER
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jpbi.v3i3.4744

Abstract

The research aimed to product a learning material related to animation video on enzyme and metabolism material for high school student which is validated by media and material experts, educational practition and student legibility. Research and development model is ADDIE with quantitative-qualitative data analyzing methode. Data collection was obtained from validation results by media and material experts, educational partition and student legibility. The validation results were scores and suggestion. The percentage of product from expert media validation (100%), expert material validation (89,58%), educational practition (84,61%), and student legibility (81,91%) showed valid of the criteria and feasible to use after revision.
Morpho-Anatomical Analysis of Cosmostigma racemosum (Asclepiadoideae) Flowers Widodo Widodo; Mohamad Amin; Mimien Henie Irawati Al-Muhdar; Muhammad Ja’far Luthfi
Biology, Medicine, & Natural Product Chemistry Vol 3, No 1 (2014)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1600.439 KB) | DOI: 10.14421/biomedich.2014.31.35-46

Abstract

Cosmostigma racemosum is a plant species belonging to the family Apocynaceae, the subfamily Asclepiadoideae. Cosmostigma racemosum is found in Nglanggeran Mountain Gunungkidul, Yogyakarta. The local name and its original distribution are not known. Information or study of Cosmostigma racemosum in Indonesia is not available. Comprehensive characterization of this species is important for authentication and addition of data base. Characterization was conducted by analyzing the morphology and anatomy of flower. The objectives of this study were to describe and analyze the morphology and anatomy of C. racemosum flowers.  The method of research was based on observation method and exploration of plant systematics evidence or taxonomy evidence, including analyses and description of morphology and anatomy of flower structure and its development.  The results showed that the characteristics of flower morphology are in accordance with the existing description in literatures. Characteristics of pollinia are specific characters of morphological aspect of flower. Data of anatomy of flower and its parts development are the new ones which confirm the position of C.racemosum as a member of the tribe Marsdenieae. The data of anatomy also show new information of the ontogeny of the important parts of flower: pollinia formation, pollinia corpusculum, anther wall, anther sac, stigma, stamen, staminal tube, stigmatic chamber, and structure of ovary in Asclepiadoideae
Substitution and Haplotype Diversity Analysis on The Partial Sequence of The Mitochondrial DNA Cyt b of Indonesian Swamp Buffalo (Bubalus bubalis) Akhmad Sukri; Mohamad Amin; Aris Winaya; Abdul Gofur
Biology, Medicine, & Natural Product Chemistry Vol 3, No 2 (2014)
Publisher : Sunan Kalijaga State Islamic University & Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1514.606 KB) | DOI: 10.14421/biomedich.2014.32.59-63

Abstract

This research aims to investigate the substitution pattern of nucleotide base and haplotype diversity of Indonesian swamp buffalo (Bubalus bubalis) based on the mitochondrial DNA cyt b partial gene sequence. 17 samples were chosen from 7 different regions with each uniquely represents Indonesian biogeography which comprise Aceh, Riau, Madiun, Blitar, Lombok, South Borneo and Tana Toraja. The result of cyt b gene sequence alignment showed the presence of transition and transversion substitutions and the absence of insertion and deletion. The amount of transitions was found to be higher than that of transversions and the amount of substitution in pyrimidine was also higher than that in purine. The highest amount of transitions happened in base TàC which is a silent substitution. The result of median joining network analysis showed that Indonesian haplotype Bubalus bubalis could be classified into 16 haplotypes which form different haplogroups unique to their geographical region. The result of median joining network analysis also indicated that the genetic relationships of swamp buffaloes (Bubalus bubalis) in Indonesia are highly influenced by their geographical locations.
The Potential of Indigenous Bacteria for Removing Cadmium from Industrial Wastewater in Lawang, East Java Agung Pambudiono; Endang Suarsini; Mohamad Amin
Journal of Tropical Life Science Vol. 8 No. 1 (2018)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.08.01.11

Abstract

Heavy metals have been used in various areas around the world especially in the industrial sector. Heavy metals contamination is very dangerous for ecosystem because of its toxicity for some organisms. Cadmium (Cd) is a dangerous metal pollutant that can cause remarkable diverse of toxic effects, in particular for humans and animals. The use of bacteria as bioremediation agents has been widely studied because more efficient, less cost, and environmentally friendly strategy. This present study aimed to isolate and identify Cd-resistant bacteria from the industrial disposal site. Wastewater samples were collected from disposal site of agar flour industry in Lawang Malang, East Java. The collected wastewater effluent was analyzed for physicochemical properties. Isolation of Cd-resistant bacteria was carried out using serial dilution. Bacterial isolates were observed and tested for their effects on the content of Cd. The content of Cd was tested daily using Atomic Absorption Spectroscopy (AAS) for seven consecutive days. Data was analyzed using one-way ANOVA (p < 0.05) and Tukey test. Characterization of potential bacterium was performed using bacterial identification kit. Four bacteria isolates have been successfully isolated from the wastewater sample. There was a statistically significant difference between groups as determined by one-way ANOVA (F = 1229.62, p = 0.00). A Tukey post hoc test revealed that all conditions are significantly different from each other. The content of Cd in wastewater sample was statistically significantly lower after taking the A isolate (3.39 mg/L, p = 0.00), B Isolate (1.47 mg/L, p = 0.00), C Isolate (1.15 mg/L, p = 0.00), and D isolate (1.95 mg/L, p = 0.00) compared to the control treatment (5.11 mg/L, p = 0.00). Two of the most potential isolates identified as Pseudomonas flourescens (C isolate) and Enterobacter agglomerans (B isolate).
Co-Authors Abdul Gofur Agung Pambudiono Akhmad Sukri Aris Winaya Endang Suarsini Mimien Henie Irawati Mimien IAM Muhammad Ja’far Luthfi Muhammad Mustofa Yusuf Nugrahaningsih Nugrahaningsih Siti Zubaidah Tabitha Wulandari Widodo Widodo