scholarly journals Effect of Physical Modeling and Computer Animation Implemented with Social Constructivist Instruction on Understanding of Human Reproductive System

10.29007/jghq ◽  
2020 ◽  
Author(s):  
Gonca Esendemir Eskin ◽  
Ömer Geban
Keyword(s):  
Reproductive System ◽  
Physical Modeling ◽  
Computer Animation ◽  
Social Constructivist ◽  
Control Group ◽  
Significant Difference ◽  
Human Reproductive ◽  
Biology Instruction ◽  
Constructivist Instruction ◽  
Avoidance Goals

Purpose of the study, was to compare effectiveness of the physical modeling and computer animation implemented with social constructivist and traditionally designed instruction on 10th grade students’ understanding of human reproductive system, motivation to- wards learning biology and types of achievement goal orientation. Design of the study was quasi-experimental with 125 students from six intact classes in a private high school in Ankara. Three groups for both experimental and controlled groups were randomly as- signed. Students in experimental and control group were exposed to computer animation and physical modeling implemented with social constructivist instruction and traditionally designed biology instruction with respectively.Results of MANOVA indicated that experimental group showed significantly better acquisition of the scientific concepts and higher motivation towards biology learning than traditionally designed biology instruction. Analysis of ANCOVA showed that students in control group had significantly higher tendency to have performance approach and performance avoidance goals. In contrary there is no significant difference in between two groups related with mastery approach and mastery avoidance goals.

scholarly journals Using Animation To Improve The Students' Academic Achievement On Bipolar Junction Transistor

2012 ◽  
Vol 3 (2) ◽  
pp. 83-88
Author(s):  
W. Zoabi ◽  
N. Sabag ◽  
A. Gero
Keyword(s):  
Computer Animation ◽  
Control Group ◽  
Advanced Mathematics ◽  
Bipolar Junction Transistor ◽  
Significant Difference ◽  
Modern Physics ◽  
Junction Transistor ◽  
Current Flows ◽  
Level Of Thinking ◽  
Experimental Group

Teaching abstract subjects to students studying towards a degree in electronics practical engineering (a degree between a technician and an engineer) requires didactic tools that enable understanding of issues without using advanced mathematics and physics. One basic issue is the BJT (Bipolar Junction Transistor) that requires preliminary knowledge of semiconductor basics and modern physics, which is not addressed in the curriculum. Existing teaching methods reinforce students' tendency to use familiar formulas, without discussing the BJT internal structure and without comprehending the nature of the current. Therefore, it is not surprising that students do not understand the manner in which the current flows in a device that can be described as two back-to-back diodes. This article shows preliminary results of a study in which a computer animation was developed in order to depict the dynamic processes in BJT, and compares the academic achievements of students who learned BJT via animation to those who learned via static diagrams. 41 students were randomly divided into two groups, 21 students in the experimental group and 20 students in the control group. The experimental group received explanations including animation while the control group received traditional explanations using a blackboard but no animation. A comparison was made between the students' achievements in both groups via a pretest. After learning about BJT, a posttest and new comparison was conducted. The comparison referred to two categories: A. Total score on the test; B. Score on questions that require higher level of thinking. The pretest results showed no significant difference between the groups’ achievement. In contrast the results of the posttest were significant, showing a 12-point advantage in the average total score, and about a 14-point advantage in the average on higher level thinking questions in the experimental group as opposed to control group. Thus, while the results of the study are preliminary, it is encouraging and important to present the results. 

scholarly journals Efektifitas Model Pembelajaran Group Investigation (GI) terhadap Hasil Belajar Materi Sistem Reproduksi Manusia Pada Siswa Kelas IX.1 di SMP Negeri 13 Pekanbaru

2019 ◽  
Vol 1 (2) ◽  
pp. 88
Author(s):  
Ni Komang Dewi Ratnawati
Keyword(s):  
Learning Outcomes ◽  
Junior High School ◽  
Subject Matter ◽  
Reproductive System ◽  
Learning Model ◽  
Control Group ◽  
Average Value ◽  
Human Reproductive ◽  
The Subject ◽  
Better Than

This study aims: 1) To determine the effectiveness of the Group Investigation (GI) model in the subject matter of the human reproductive system in class IX.1 and IX.2 Pekanbaru SMP Negeri 2) To improve the learning outcomes of students in class IX.1 and IX.2 SMP Negeri 13 Pekanbaru is the subject matter of the human reproductive system through the Group Investigation (GI) model. The effectiveness of the Group Investigation (GI) learning model can improve learning outcomes in classes IX-.1 and IX.2 Pekanbaru State Junior High School 13. This situation can be seen from the results of the tests that have been done, obtained the average value for the experimental class is 66.43 lowest value = 50 and the highest value = 97, and students who complete KKM = 27 students and KKM incomplete = 10 students. While the average value of the control class is 54.67 the lowest value = 30 and the highest value = 80, and students who have completed KKM = 9 students and students who have not completed KKM = 27 students. From the analysis of hypothesis testing it is known, that the experimental group is better than the control group. This is indicated by the value of tcount = 5.409. Ho testing criteria is accepted if tcount <t table. The results of the tcount are then consulted with ttable where a = 5%, dk = n1 + n2 - 2 = 85, obtained = 1-α t (0.95) (85) = 1.66. Because in this study tcount = 5.409 and t table = 1.66, and this means tcount <ttable, then Ho is accepted or significant. And the hypothesis that the experimental class learning outcomes are better than the control class, accepted. Thus the learning of material biology in the human reproductive system using the cooperative learning model type Group Investigation (GI), and the hypothesis which states that the experimental class learning outcomes are better than the control class, accepted.

scholarly journals The Effect of Interactive Computer Animation and Simulation on Students’ Achievement and Motivation in Learning Electrochemistry

2021 ◽  
Vol 10 (3) ◽  
pp. 311-324
Author(s):  
N. J. Ahmad ◽  
N. Yakob ◽  
M. A. H. Bunyamin ◽  
N. Winarno ◽  
W. H. Akmal
Keyword(s):  
Computer Animation ◽  
Male Students ◽  
Control Group ◽  
Abstract Concepts ◽  
Control Groups ◽  
Chemistry Learning ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
And Control

Electrochemistry is difficult to learn due to its abstract concepts involving macroscopic, microscopic, and symbolic representation levels. Studies have shown that students can visualize and improve their understanding of chemistry by using interactive computer animation and simulation. This study reports the effect of interactive computer animation and simulation module named “Interactive Electrolysis of Aqueous Solution” (IEAS) developed to aid students in learning electrolysis. A pre and post-test control quasi-experimental design was carried out to investigate the effects of the IEAS on students’ achievement and motivation in electrochemistry topics. This study involved 62 16-years-old male students from two different secondary schools. Pre and post electrochemistry achievement tests (EAT) and pre and post- Instructional Material Motivation Surveys (IMMS) were used. For EAT, using one-way ANOVA, it shows that there was a significant difference in the post-test mean score in this study on the understanding of the electrolysis concept between students in the treatment and control groups [F (1, 60) = 5.15, p <0.05]. The qualitative results also provided evidence that the students in the treatment group had a better conceptual understanding than the control group, especially at the microscopic representation level. For the IMMS test, there was a significant difference between the treatment and control groups in terms of the mean score of the post motivation IMMS test where p <0.05 in chemistry learning [F (1,59) = 266.89, p <0.05].  Thus, it can be concluded that IEAS has an impact on enhancing the students’ understanding of the electrolysis concept, and the students are more motivated to learn electrochemistry.

scholarly journals The Effect of Bilingual Student Worksheet Application toward Students’ Learning Outcomes on the Human Reproductive System Topic

Biosfer ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 30-36
Author(s):  
Yulia Hardianti ◽  
Nurmasari Sartono ◽  
Yulilina Retno Dewahrani
Keyword(s):  
Hypothesis Testing ◽  
Learning Outcomes ◽  
Reproductive System ◽  
Cognitive Learning ◽  
T Test ◽  
Choice Test ◽  
Control Group ◽  
Bilingual Student ◽  
Human Reproductive ◽  
Grade 11

The aim of this research was to know the effect of the use of bilingual student worksheet toward students’ learning outcomes on the human reproductive system topic. This research was conducted at SMAN 68 Jakarta on April – May 2012. The method was quasi-experimental with posttest-only design. The Simple random sampling technique selected 30 students grade 11 of IPA 4 included in experimental group and another 30 students grade 11 of IPA 3 as control group. This research used instrument of multiple choice test with five alternative answers. Prerequisite Testing for normality of Kolmogorov – Smirnov and homogeneity testing of F-test showed a normal distribution and homogenous data. The hypothesis testing on cognitive learning result using t-test at α = 0.05 indicated that tcount (2.35) > ttable (2.00) which rejected the H0, whether the hypothesis testing on affective learning result using t-test at α = 0.05 showed that tcount (3.84) > ttable (2.00) which rejected the H0. Based on the results, it can be concluded that there was an effect of using the bilingual student worksheet toward students’ learning outcomes on the human reproductive system topic.

scholarly journals The Influence of Thinking Aloud Pair Problem Solving (TAPPS) Learning Model Charged Science Literacy on Students Learning Competencies in the Material of Human Reproductive System at SMAN 1 Enam Lingkung

2019 ◽  
Vol 4 (3) ◽  
pp. 73
Author(s):  
Intan Maghvira ◽  
Relsas Yogica ◽  
Ganda Hijrah Selaras ◽  
Syamsurizal Syamsurizal
Keyword(s):  
Problem Solving ◽  
Reproductive System ◽  
Science Literacy ◽  
Learning Model ◽  
Control Group ◽  
Thinking Aloud ◽  
Human Reproductive ◽  
Biology Learning ◽  
Learning Competencies ◽  
Cluster Random Sampling

The Problem of the research at SMAN 1 Enam Lingkung was that the Biology learning process is less varied and teacher-centered, students were unable to solve problems in learning, low learning competencies of students from aspects of knowledge, attitudes, and skills,and low science literacy abilities of students. The purpose of this study was to determine the effect of applying thinking aloud pair problem solving learning model with science literacy on students learning competencies in human reproductive system material at SMAN 1 Enam Lingkung.This type of research is an experiment with a randomized control group post-only only design. The population was all class XI of SMAN 1 Enam Lingkung which were registered in the 2018/2019.Sampling was done using cluster random sampling, and the chosen sample was the XI MIPA 2 class as the experimental class, and the XI MIPA 1 class as the control class. The instruments used were in the form of posttest questions for knowledge competency, observation sheets for attitude and skill competencies. Based on the results of the knowledge competency research, the tcount was 5.14> ttable 1.67, the competency attitude was tcount of 15.12> ttable 1.67, and in the competency of skills tcount was 9.45> t table 1.67. This is an aceppted hypothesis. It was concluded that the model thinking aloud pair problems solving with sains literacy improve the competencies of knewledge, attitude, and skills in the material of the human reproductive system at SMAN 1 Enam Lingkung.

scholarly journals Effect of Application of Ular Tangga Game Media on Cognitive Learning Result of Human Reproductive System

Biosfer ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 20-26
Author(s):  
Aulia Nisa ◽  
Refirman Djamahar ◽  
Dian Evriyani
Keyword(s):  
Reproductive System ◽  
Cognitive Learning ◽  
Control Group ◽  
P Value ◽  
Selective Learning ◽  
Quasi Experimental ◽  
Human Reproductive ◽  
Biology Learning ◽  
Learning Test ◽  
And Control

One of factors effecting biology learning result is a selective learning media. A proper media application will solve problems occurred during the learning process. This research was aimed to find out the effect of application of ular tangga game media on biology learning result of senior high school student on human reproductive system. It was conducted at SMA Negeri 99 Jakarta on April to May 2014 using a quasi-experimental method. Two groups of grade XI student selected by purposive sampling then divided into experimental and control group consisted of 30 students. Ular tangga media and powerpoint applied respectively in experimental and control group. The result of cognitive learning test was statistically tested using t-test with α = 0.05. Based on the calculation, it was found that the p value =0.002. Since p < α, the H0 was rejected. This result showed that there was an effect of ular tangga media application on Biology learning result of the topic. As the conclusion, ular tangga game media effected cognitive learning result of students at SMA Negeri 99 Jakarta.

scholarly journals Damage to the Testicular Structure of Rats by Acute Oral Exposure of Cadmium

2021 ◽  
Vol 18 (11) ◽  
pp. 6038
Author(s):  
Tariq Iqbal ◽  
Maosheng Cao ◽  
Zijiao Zhao ◽  
Yun Zhao ◽  
Lu Chen ◽  
...  
Keyword(s):  
Weight Gain ◽  
Reproductive System ◽  
Sperm Count ◽  
Tunica Albuginea ◽  
Tail Length ◽  
Oral Exposure ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Sprague Dawley ◽  
Significant Difference

Cadmium (Cd) is one of the most important heavy metal toxicants, used throughout the world at the industrial level. It affects humans through environmental and occupational exposure and animals through the environment. The most severe effects of oral exposure to Cd on the male reproductive system, particularly spermatogenesis, have not been discussed. In this study, we observed the damage to the testes and heritable DNA caused by oral exposure to Cd. Adult male Sprague–Dawley rats were divided into four groups: a control group and three groups treated with 5, 10, and 15 mg Cd/kg/day for 17 days by oral gavage. Our results revealed that Cd significantly decreases weight gain in 10 and 15 mg/kg groups, whereas the 5 mg/kg groups showed no difference in weight gain. The histopathology showed adverse structural effects on the rat testis by significantly reducing the thickness of the tunica albuginea, the diameter of the tubular lumen, and the interstitial space among seminiferous tubules and increasing the height of the epithelium and the diameter of the seminiferous tubules in Cd treated groups. Comet assay in epididymal sperms demonstrated a significant difference in the lengths of the head and comet in all the 3 Cd treated groups, indicating damage in heritable DNA, although variations in daily sperm production were not significant. Only a slight decrease in sperm count was reported in Cd-treated groups as compared to the control group, whereas the tail length, percentage of DNA in head, and tail showed no significant difference in control and all the experimental groups. Overall, our findings indicate that Cd toxicity must be controlled using natural sources, such as herbal medicine or bioremediation, with non-edible plants, because it could considerably affect heritable DNA and induce damage to the reproductive system.

The Impact of Gemcitabine-induced Reproductive Toxicity on The Sperm count and Morphology of Albino Rats

2021 ◽  
Vol 12 (1) ◽  
pp. 357-365
Author(s):  
Bassam Abdulaziz Alahmadi
Keyword(s):  
Reproductive System ◽  
Sperm Count ◽  
Male Rats ◽  
Control Group ◽  
Albino Rats ◽  
Human Dose ◽  
Significant Difference ◽  
Recovery Group ◽  
Sperm Count And Morphology ◽  
The Impact

Cancer treatments can affect sperm production and a significant percentage of cancer patients may develop permanent azoospermia or severe oligozoospermia after chemotherapy. To investigate the influence of Gemcitabine toxicity on the reproductive system of albino male rats (sperm count and morphology). An experimental animal study conducted in the zoology department, College of Science, King Saud University during the period from June to October 2014 using albino rats (Rattusnorvegicus) (Wistar strain). Males were divided into four different groups (control" 0 mg/kg",7 mg/kg,14 mg/kg, and 21 mg/kg). The reproductive organs, testicles and epididymis decreased in weight and atrophied in most of the animals treated with the drug in various doses. The mean absolute and relative epididymal weights were also significantly decreased. In the drug-effects recovery group, neither the testicles nor the epididymis in the animals treated with the three doses recovered fully normal weight. The testis's efficiency in producing sperm was significantly decreased at all doses. In the recovery group, the testis regained its efficiency, as no significant difference was recorded between the drug-treated groups and the control group. The drug caused complete loss of sperm, in a rat treated with the big dose. Gemcitabine caused a significant increase in the percentage of deformed sperms in all treated animals. Gemcitabine drug has high toxicity on the reproductive system of rats with a dose tenth of human dose, with a massive decrease in the count and quantity of sperm, which means that this drug can have more toxicity effects on human.

scholarly journals Development of the Discovery With Team Assisted Individualization (D-TAI) Model to Empower Analytical Thinking Ability in the Material Human Reproductive System

2020 ◽  
Vol 2 (2) ◽  
pp. 119
Author(s):  
Aulia Novitasari ◽  
Sutarno Sutarno ◽  
Mohammad Masykuri
Keyword(s):  
Research And Development ◽  
Reproductive System ◽  
Thinking Skills ◽  
Learning Model ◽  
Initial Product ◽  
Analytical Thinking ◽  
Significant Difference ◽  
Human Reproductive ◽  
Model Class ◽  
Field Revision

The objectives of this research and development are: to find out the characteristics of the Discovery with Team Assisted Individualization (D-TAI) learning model, determine the feasibility of the D-TAI learning model, and test the effectiveness of the product model in empowering analytical thinking skills. Model development research refers to Borg & Gall, which was adapted into nine stages: research and data collection, planning, initial product development, initial testing, product revision I, main field revision, product revision II, operational field revision, and final product revision . Analysis of the data used is a qualitative and quantitative descriptive analysis using the Mann Whitney U test. The results of the research and development show: the development of the D-TAI model was carried out with regard to the characteristics of the model. the results of the development of the D-TAI model are applied to the material of the human reproductive system. D-TAI model is able to empower students' analytical thinking skills. The results of the study show a significant difference between the value of analytical thinking skills in the D-TAI model class and the control class that is the average value of the D-TAI model class (74.79) higher than the control class ( 55.91) control with sig level 0.00 <0.05.

Levels of Prothrombin Fragment F1+2 in Patients with Hyperhomocysteinemia and a History of Venous Thromboembolism

1997 ◽  
Vol 78 (05) ◽  
pp. 1327-1331 ◽  
Author(s):  
Paul A Kyrle ◽  
Andreas Stümpflen ◽  
Mirko Hirschl ◽  
Christine Bialonczyk ◽  
Kurt Herkner ◽  
...  
Keyword(s):  
Venous Thromboembolism ◽  
Thrombin Generation ◽  
Oral Anticoagulant Therapy ◽  
Oral Anticoagulants ◽  
Control Group ◽  
Prothrombin Fragment ◽  
Hemostatic System ◽  
Significant Difference ◽  
System Activation ◽  
One Year

SummaryIncreased thrombin generation occurs in many individuals with inherited defects in the antithrombin or protein C anticoagulant pathways and is also seen in patients with thrombosis without a defined clotting abnormality. Hyperhomocysteinemia (H-HC) is an important risk factor of venous thromboembolism (VTE). We prospectively followed 48 patients with H-HC (median age 62 years, range 26-83; 18 males) and 183 patients (median age 50 years, range 18-85; 83 males) without H-HC for a period of up to one year. Prothrombin fragment Fl+2 (Fl+2) was determined in the patient’s plasma as a measure of thrombin generation during and at several time points after discontinuation of secondary thromboprophylaxis with oral anticoagulants. While on anticoagulants, patients with H-HC had significantly higher Fl+2 levels than patients without H-HC (mean 0.52 ± 0.49 nmol/1, median 0.4, range 0.2-2.8, versus 0.36 ± 0.2 nmol/1, median 0.3, range 0.1-2.1; p = 0.02). Three weeks and 3,6,9 and 12 months after discontinuation of oral anticoagulants, up to 20% of the patients with H-HC and 5 to 6% without H-HC had higher Fl+2 levels than a corresponding age- and sex-matched control group. 16% of the patients with H-HC and 4% of the patients without H-HC had either Fl+2 levels above the upper limit of normal controls at least at 2 occasions or (an) elevated Fl+2 level(s) followed by recurrent VTE. No statistical significant difference in the Fl+2 levels was seen between patients with and without H-HC. We conclude that a permanent hemostatic system activation is detectable in a proportion of patients with H-HC after discontinuation of oral anticoagulant therapy following VTE. Furthermore, secondary thromboprophylaxis with conventional doses of oral anticoagulants may not be sufficient to suppress hemostatic system activation in patients with H-HC.

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