scholarly journals The use of 3D software on plant anatomy courses for prospective Biology teachers

2020 ◽  
Vol 1440 ◽  
pp. 012065
Author(s):  
P K Suprapto ◽  
D M Chaidir ◽  
R Ardiansyah

Author(s):  
Diki Muhamad Chaidir ◽  
Purwati Kuswarini Suprapto

The aim of this research is to find out the differences in spatial intelligence and microscopic representation of prospective biology teachers in 3D software lectures on plant anatomy using Blender and 3DS Max applications. The research method used was quasi-experimental using the research design of The Matching Only Pretest-Posttest group design group. The population in this study is a prospective biology teacher in the department of biology education faculty of teaching and educational sciences in the academic year 2017/2018 at Siliwangi University who contracted the course of plant anatomy. Sampling is done by purposive sampling techniques as many as 2 classes by looking at the level of activeness in the same learning process. The results showed both classes showed a low spatial intelligence N-Gain category, as well as getting an average value of microscopic representation with a score of 3.7 for the use of 3Ds Max and 3.82 for Blender. The conclusion of this study is that there is no difference in spatial intelligence and microscopic representation of students, in addition students are still having difficulty for those who use max 3Ds software, because it requires a high enough computer specification, so the use of 3-dimensional blender application is more recommended used for aspiring biology teachers who want to make 3D forms of biological objects especially plant anatomy.



2018 ◽  
Vol 46 (4) ◽  
pp. 476-486
Author(s):  
Hwa-Jung Han ◽  
Kew-Cheol Shim


2015 ◽  
Vol 1 (1) ◽  
pp. 13-20
Author(s):  
Hamid Reza Samadi ◽  
Mohammad Reza Samadi

Due to the development of cities as well as rapid population growth, urban traffic is increasing nowadays. Hence, to improve traffic flow, underground structures such as metro, especially in metropolises, are inevitable. This paper is a research on the twin tunnels Of Isfahan's metro between Shariaty station and Azadi station from the North towards the South. In this study, simultaneous drilling of subway's twin tunnels is simulated by means of Finite Difference Method (FDM) and FLAC 3D software. Moreover, the lowest distance between two tunnels is determined in a way that the Law of Super Position could be utilized to manually calculate the amount of surface subsidence, resulted by drilling two tunnels, by employing the results of the analysis of single tunnels without using simultaneous examination and simulation. In this paper, this distance is called "effective distance". For this purpose, first, the optimum dimensions of the model is chosen and then, five models with optimum dimensions will be analyzed separately, each of which in three steps. The results of analyses shows that the proportions (L/D) greater than or equal 2.80, the Law of Super Position can be applied for prediction of surface subsidence, caused by twin tunnels' construction



2019 ◽  
Vol 9 (4) ◽  
pp. 149-156
Author(s):  
Oyovwi Edarho Oghenevwede

Abstract This study focused on enhancing biology students' achievement and attitude through Self-Regulated Learning Strategy in secondary schools in Delta Central Senatorial District. The study adopted the quasi-experimental pre-test, post-test control group design. Four research questions and four research hypotheses were formulated and raised to guide the study. The population of the study was all the biology students in senior secondary school II (SS II) in all the government-owned public secondary schools in Delta Central Senatorial District with an estimation of six thousand, four hundred and twenty-one students (6,421). A sample of two hundred and forty-five (245) senior secondary schools II students randomly selected from four (4) public mixed secondary schools was used for the study. The Simple Random Sampling Technique was adopted to draw the sample. The instruments used for data collection were the Biology Achievement Test (BAT) and Biology Attitude Questionnaire (BAQ). BAT and BAQ were validated by I Measurement and Evaluation and Biology teachers that have taught biology for more than ten (10) years. The reliability of BAT and BAQ were established using Kuder-Richardson formula 21 and Cronbach Alpha which yielded a coefficient of internal consistencies of 0.75 for BAT and 0.80 for BAQ respectively. Data were collected by administering the biology achievement test (BAT) and biology attitude questionnaire (BAQ) as pre-test and post-test. The data obtained were analysed using mean, standard deviation Analysis of Variation (ANOVA) and Analysis of Covariance (ANCOVA). The result shows that self-regulated regulated learning strategy significantly enhanced students' achievement in biology compared to the lecture method; there was no significant difference between the mean achievement score of male and female students taught biology using self-regulated learning strategy; there was a significant difference between the mean attitude score of students taught using self-regulated learning strategy compared with those taught with lecture method in favour of students taught using the self-regulated learning strategy and there was no significant difference between the mean attitude score of male and female students taught biology using self-regulated learning strategy. Based on the findings it was concluded that self-regulated learning strategy significantly enhances students' achievements and attitudes in biology. It was therefore recommended that biology teachers should adopt the strategy in teaching biology at the secondary school level and that biology teachers should be trained on how to use the skills of self-regulated learning strategy effectively.





2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Michel Schmidt ◽  
Yu Liu ◽  
Xianguang Hou ◽  
Joachim T. Haug ◽  
Carolin Haug ◽  
...  

Abstract Background The Chengjiang biota from southwest China (518-million-years old, early Cambrian) has yielded nearly 300 species, of which more than 80 species represent early chelicerates, crustaceans and relatives. The application of µCT-techniques combined with 3D software (e.g., Drishti), has been shown to be a powerful tool in revealing and analyzing 3D features of the Chengjiang euarthropods. In order to address several open questions that remained from previous studies on the morphology of the xandarellid euarthropod Sinoburius lunaris, we reinvestigated the µCT data with Amira to obtain a different approach of visualization and to generate new volume-rendered models. Furthermore, we used Blender to design 3D models showing aspects of intraspecific variation. Results New findings are: (1) antennulae consist of additional proximal articles that have not been detected before; (2) compared to other appendages, the second post-antennular appendage has a unique shape, and its endopod is comprised of only five articles (instead of seven); (3) the pygidium bears four pairs of appendages which are observed in all specimens. On the other hand, differences between specimens also have been detected. These include the presence/absence of diplotergites resulting in different numbers of post-antennular appendages and tergites and different distances between the tip of the hypostome and the anterior margin of the head shield. Conclusions Those new observations reveal intraspecific variation among Chengjiang euarthropods not observed before and encourage considerations about possible sexual dimorphic pairs or ontogenetic stages. Sinoburius lunaris is a variable species with respect to its morphological characters, cautioning that taxon-specific variabilities need to be considered when exploring new species.



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