scholarly journals PENGARUH WAKTU PENGADUKAN TERHADAP WAKTU GELASI BAHAN CETAK ALGINAT

2016 ◽  
Vol 4 (1) ◽  
pp. 1-7
Author(s):  
Audia Tria Putri ◽  
Rizanda Machmud ◽  
Murniwati Murniwati
Keyword(s):  
Experimental Method ◽  
Mixing Time ◽  
Setting Time ◽  
Dental Materials ◽  
Control Group ◽  
Anova Test ◽  
Significant Difference ◽  
Experimental Group ◽  
One Way Anova

Alginate is one of many dental materials that used for the impressing materials. Mixing time is one of factorsthat affected the setting time. The aim of this study was to determine the effect of mixing time at 30 seconds, 35seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds and 60 seconds on setting time of alginate. This studyused experimental method. The samples that used were 42 samples and divided into 7 groups of mixing time,that were 30 seconds (control), 35 seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds, and 60 seconds.Setting time was tested with acrylic test rod based on ADA specification no.18. The alginate powder was mixedwith water (10 gr : 23 ml ratio), then put in the mould. Acrylic test rod was placed in contact with the surface ofalginate dough. The setting time was measured from the starting of the mix to the time when alginate does notadhere to the end of the rod. Result of this study showed that the average of setting time of alginate which mixedfor 30 seconds (control), 35 seconds, 40 seconds, 45 seconds, 50 seconds, 55 seconds, and 60 seconds was120.17 ± 3.312 seconds, 119.00 ± 1.265 seconds, 118.17 ± 1.472 seconds, 114.83 ± 3.896 seconds, 112.00 ±1.673 seconds, 109.17 ± 0.983 seconds, and 105.33 ± 4.082 seconds respectively. One Way Anova test shows significant difference among all experimental group with p=0.000. The change of setting time alginate show significant difference with control group when it mixed for 45 seconds, 50 seconds, 55seconds, and 60 seconds.Keywords: alginate, mixing time, setting time

scholarly journals Pengaruh Penambahan Hidroksiapatit dari Cangkang Telur Ayam Terhadap Kekerasan Permukaan GIC

2016 ◽  
Vol 5 (2) ◽  
pp. 8
Author(s):  
Putri Ajri Mawadara ◽  
Martha Mozartha ◽  
Trisnawaty K
Keyword(s):  
Dental Materials ◽  
Surface Hardness ◽  
T Test ◽  
Control Group ◽  
System A ◽  
Significant Difference ◽  
Calcium Source ◽  
Chicken Eggshell ◽  
Restorative Dental Materials ◽  
Experimental Group

Hydroxyapatite (HA) is a bioceramic with excellentbiocompatible properties, and composition and crystal structure similar to apatite in the human dental structure and skeletal system. A number of researchers have attempted to evaluate the effect of the addition of HA powders to increasemechanical properties of restorative dental materials. In this study, HA was synthesized using chicken eggshell as calcium source for synthesizing HA by using precipitation technique. The aim of this study was to determine the effect of incorporation of eggshell-derived HA on the surface  hardness GIC (Fuji IX GP). Specimens were divided into two groups: group GIC without incorporation of HA as control group (n = 16) and group GIC with incorporation of 5% HA as experimental group (n = 16). Total of specimens were 32 cylinders 5mm diameter and 2mm height. Surface hardness GIC was measured with vickers microhardness tester. Data wasanalyzed by unpaired T-test. The mean of surface hardness for GIC control group was 51.37 ± 1,63VHN and the experimental group was 56.60 ± 1,22HVN. The results T-test showed a significant difference between groups (p<0.05). It can be concluded thatincorporation of eggshell-derivedHA could increasesurface hardness of GIC.

scholarly journals 81 EFFECT OF SUCROSE CONCENTRATION IN WARMING MEDIUM ON THE DEVELOPMENT POTENTIAL OF VITRIFIED BOVINE OOCYTES

2005 ◽  
Vol 17 (2) ◽  
pp. 190
Author(s):  
W.C. Chang ◽  
J. Xu ◽  
S. Jiang ◽  
X.C. Tian ◽  
X. Yang ◽  
...  
Keyword(s):  
Sucrose Concentration ◽  
Control Group ◽  
Bovine Oocyte ◽  
Cell Stage ◽  
Significant Difference ◽  
Humidified Air ◽  
Bovine Oocytes ◽  
Experimental Group ◽  
One Way Anova

The aim of this experiment was to determine the effect of the sucrose concentration (0 to 0.33 M) in the dilution medium on the viability, fertilizability, and development of vitrified bovine oocytes. Bovine oocyte-cumulus complexes were collected from slaughterhouse ovaries and in vitro-matured as reported previously. After 24-h maturation in TCM199-based medium under 5% CO2 humidified air at 39°C, these were exposed to hyaluronidase and carefully pipetted to remove all except the 3–5 innermost layers of cumulus. Oocytes were put into the pre-equilibration medium for 3 min and then into vitrification solution containing HEPES-buffered TCM199 supplemented with 20% FBS, ethylene glycol, and dimethylsulphoxide for 25–30 s; they were then vitrified by modified solid surface vitrification (Dinnyes et al. 2000 Biol. Reprod. 63, 513–518).The oocytes were warmed at 39°C by placing them in holding medium with 0, 0.08, 0.17, 0.25, or 0.33 M sucrose. Non-vitrified oocytes were used as controls. Oocytes were inseminated 30 min after warming, and the presumptive zygotes were cultured in CR1-aa medium supplemented with 6 mg/mL BSA at 39°C in a humidified atmosphere of 5% CO2, 5% O2, and 90% N2 for eight days. Data were analyzed by one-way ANOVA. As shown in Table 1, there was no significant difference in survival rate (P > 0.05) of the vitrified oocytes that were placed in dilution solution containing 0.17, 0.25, or 0.33 M sucrose and the non-treated controls. On Day 2 (fertilized on Day 0), cleavage to the 8-cell stage was similar for the 0.17, 0.25, and 0.33 M dilution groups, but the rates for all three were significantly lower (P < 0.05) than for the control group. The blastocyst rate on Day 8 was significantly higher for the 0.25 M group than for any other experimental group but still significantly lower than for the control. In conclusion, this study suggests that with this vitrification/warming procedure the optimum concentration of sucrose in the dilution solution is 0.25 M. Table 1. Oocyte survival after vitrification/warming and subsequent embryo development The authors would like to thank Ms Colleen Shaffer for the preparation of bovine oocytes.

scholarly journals A Comparative Study Between Team Game Tournament and Direct Instruction Method in Teaching Reading

2018 ◽  
Vol 6 (2) ◽  
pp. 191
Author(s):  
Ahunberdi Tashliyev ◽  
Ngadiso Ngadiso ◽  
Endang Setyaningsih
Keyword(s):  
Comparative Study ◽  
Experimental Method ◽  
Direct Instruction ◽  
Research Method ◽  
Reading Skill ◽  
Control Group ◽  
Teaching Reading ◽  
Significant Difference ◽  
Team Game ◽  
Experimental Group

<p><em>The aim of this research is to find out: (1) whether there is a significant difference in reading skill between the students taught using Team Game Tournament and the students taught using Direct Instruction Method; and (2) which group of students has better reading skill, the group taught using Team Game Tournament or the group taught using Direct Instruction Method. The research method used in this study is an experimental method. This research used 20 students for the experimental group and 20 students for the control group. The research instruments used to collect the data in this study is test. The data were analyzed by using t-test formula. The computation of the data shows that: (1) there is a significant difference in reading skill between the students taught using Team Game Tournament and the students taught using Direct Instruction; and (2) Team Game Tournament is more effective than Direct Instruction Method to teach reading.</em></p>

scholarly journals USING PEER ASSISTED LEARNING STRATEGY ON READING COMPREHENSION OF ANALYTICAL EXPOSITION

2019 ◽  
Vol 12 (01) ◽  
pp. 42-56
Author(s):  
Darmawan Budiyanto
Keyword(s):  
Reading Comprehension ◽  
Experimental Method ◽  
Learning Strategy ◽  
T Test ◽  
Control Group ◽  
Peer Assisted Learning ◽  
Group Test ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Experimental Group

The objective of this study was to find out whether or not there was any significant difference on reading comprehension of analytical exposition that were taught by using Peer Assisted Learning strategy (PALS) and those who were not, and to find out whether or not it was effective to use PALS on reading comprehension. This study used quasi experimental method. 78 students was taken as sample, consists of 39 students XI IPS 3 as experimental group and XI IPS 4 as control group. Test was used in collecting data as pretest and posttest. To verify the hypothesis, the result of independent sample t-test found that t-obtained (11.077) was higher than t-table (1.9917) with df(=76), and the significance 2-tailed was 0.000. It means that there was any significant difference on reading comprehension that were taught by using PALS and those who were not, and also it was effective to use PALS.

scholarly journals The Effect of Using Rountable Technique on Student’S Writing Skill in Arranging Sentences

2019 ◽  
Author(s):  
Yetty Wirasini ◽  
Syahron Lubis
Keyword(s):  
Experimental Method ◽  
T Test ◽  
Degree Of Freedom ◽  
Control Group ◽  
Writing Test ◽  
Significant Difference ◽  
Writing Skill ◽  
Post Test ◽  
The Difference ◽  
Experimental Group

This research is concerned with applying roundtable technique writing skill in arranging sentences to form simple present tense. The aim of the research is to find out if applying roundtable technique effects on students’ writing skill in arranging sentences. The research is conducted by experimental method. The population of the research is XI students of SMA Swasta Dwi Tunggal Tanjung Morawa in 2018-2019 academic year. The sample consists of 60 students then divided into two groups, 30 students as experimental group and 30 students as control group. The experimental group is taught by applying roundtable technique and the control group without applying roundtable technique. The researcher uses writing test as instrument of the research. The test is answered by multiple choices and arranging sentences about simple present tense.The researcher analyzes the data by using the formula of t-test commonly used. After calculating and analyzing the data, it is concluded that tcalculate is higher than ttable (5,54 > 2,02). It showed that there is a significant difference. The pre test mean score of experimental is 57,16 and post test is 84,5, the difference is 27,34. The value ot tcalculate is bigger than ttable (5,54 > 2,02) degree of freedom is 58, and the level significance is 0,05. The result is that applying roundtable technique gives significant effect on students’ writing skill in arranging sentences simple presentt tense. So, It can concluded from t-test above that the hypothesis of this study is accepted.

scholarly journals The impact of the use of educational strategies in developing the ability to solve sports problems: أثر استخدام الاستراتيجيات التعليمية في تنمية القدرة على حل المسألة الرياضية لدى طلاب الصف الثامن الأساسي في محافظة عجلون

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Alaa Ahmad Ali Alsmadi
Keyword(s):  
Experimental Method ◽  
Mathematical Problem ◽  
Eighth Grade ◽  
Control Group ◽  
Educational Strategies ◽  
Significant Difference ◽  
Modern Methods ◽  
Eighth Grade Students ◽  
The Impact ◽  
Experimental Group

  The study aimed to study the effect of the use of educational strategies in developing the ability to solve the mathematical problem in the mathematics of the eighth grade students in Ajloun Governorate. The study was based on the semi- experimental method. The sample consisted of 88 students in the eighth grade,: The experimental group, the number of students (43) students, and the control group (45) Students. The results of the study showed that there is a statistically significant difference at the level of (0.05αα) in the ability to solve the mathematical problem among the eighth grade students in mathematics in Jordan due to the method of teaching according to the strategy of solving the mathematical issue. The study recommended several recommendations, To use modern methods of education, and to hold workshops for teachers to introduce them to the importance of strategies to solve the sports issue    

scholarly journals PENERAPAN METODE EKSPERIMEN UNTUK MENINGKATKAN KREATIVITAS PADA ANAK USIA DINI

2019 ◽  
Vol 2 (3) ◽  
pp. 65
Author(s):  
Elsa Nurfuady ◽  
Heris Hendriana ◽  
Ghina Wulansuci
Keyword(s):  
Experimental Method ◽  
Design Research ◽  
Control Group ◽  
P Value ◽  
Creative Potential ◽  
Control Group Design ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
Experimental Group

Basically humans have had creative potential since he was created. With the potential of its natural creativity, it is expected that early on, children will need activities related to creative ideas through coaching so that children can develop their creative potential optimally. For that we need a learning method that can improve children's creativity, one of which is the experimental method. Through the experimental method children can be trained in developing creativity. The purpose of this study is to examine the achievement of children's creativity in using experimental methods. This study used a quasi-experimental method with Nonequevalent Control Group Design research design using two classes consisting of B1 experimental group and B2 control class at Al-Masruroh Kindergarten. Based on data processing and research results obtained the results of the pre-test showed that there were no significant differences between the experimental group and the control group (TK Al-Masruroh) with p-value> 0.05 which was 0.145> 0.05, while the post test results showed creativity after the application of the experimental method there is a significant difference with the value of pvalue <0.05 which is the result of 0.000 <0.05. Based on the results of this study, the researcher recommends to child educators that the experimental method can be used as one of the learning methods to improve children's creativity.

scholarly journals The effect of combination probiotic lactobacillus brevis and leuconostoc mesenteroides on tgf-β and il-12 expression in ileum

2022 ◽  
Vol 21 (1) ◽  
pp. 175-183
Author(s):  
- Pujiati ◽  
Dono Indarto ◽  
- Susilorini ◽  
Diani Retno Widyatuti ◽  
Haneda Ilzafira Damayanti ◽  
...  
Keyword(s):  
Leuconostoc Mesenteroides ◽  
Lactobacillus Brevis ◽  
Combination Group ◽  
Control Group ◽  
P Value ◽  
Anova Test ◽  
Significant Difference ◽  
Post Hoc ◽  
One Way Anova ◽  
Asthma Group

Background: Asthma is a disease of the respiratory tract in the form of chronic inflammation. Chronic inflammation is one of them characterized by the remodeling of the airways mediated by the anti-inflammatory cytokine TGF-β. In addition there are also several immune cells that play a role such as macrophages, dendritic, neutrophils as producers of IL-12. The presence of the gut-lung axis allows the spread of inflammatory cytokines from the lungs to the intestines and vice versa. Lactobacillus brevis and Leuconostoc mesenteroides have the potential to modulate the immune system through its colonization of the gut. The study aimed to look at the effect of probiotics combined Lactobacillus brevis and Leuconostoc mesenteroides on the expression of TGF-β and IL-12 in the asthma model mouse ileum. Method: This experimental post-test only control group design study used 18 Sprague-Dawley mice. The mice were divided into 3 groups at random: control group (KI), asthma treatment (KII), asthma treatment with a combination of Lactobacillus brevis and Leuconostoc mesenteroides (KIII). Sensitization of asthma with OVA through intraperitoneal injection on days 0 and 14 and through inhalation on days 21 -63. Administration of combination probiotics per oral per day on days 21-63 after inhalation of OVA. The ileum network was taken on the 64th day and measured the expression of TGF-βand IL-12 with immunohistochemical methods and analyzed the percentage proportion of TGF-βand IL-12. Data analysis were conducted by One way ANOVA test and continued post hoc tests. Results: The percentage calculation of the proportion of TGF-βin thecontrol group (KI), asthma group (KII), and the combination group of L.brevis and L.mesenteroides (KIII) is 22.4 ± 15.27; 1.6 ± 2.12; 19.4 ± 6.65. While the percentage calculation of il-12 proportion in each group consecutively were 24.3 ± 19.67; 64.63 ± 9.90; 51 ± 16.62. One way ANOVA Test results on the percentage proportion of TGF-βhave a p value of 0.013 (p<0.05) which means there is a significant difference in the entire group. Furthermore, the Post Hoc Games-Howell test was conducted and obtained a p value of 0.003 (p<0.05) between the asthma group (KII) and the combination group of L.brevis and L.mesenteroides (KIII) which means there are significant differences between the two groups. One way ANOVA Test results on the percentage proportion of IL-12 have a p value of 0.011 (p<0.05) which means there is a significant difference in the entire group. Furthermore, the Post Hoc LSD test was conducted and obtained a p value of 0.001 (p<0.05) between the control group Post Hoc analyses was conducted and obtained a p value of 0.002 (p<0.05) with number of errors was 11.353 between the control group (KI) and asthma group (KII) which means there are significant differences between the two groups. Conclusion: The probiotic administration of lactobacillus brevis and Leuconostoc mesenteroides had no effect on the expression of TGF-β and had no effect on il-12 expression in the asthma model mouse ileum. It is necessary to do research on mice with asthma using combinations with other bacteria in order to get maximum effect. Bangladesh Journal of Medical Science Vol. 21(1) 2022 Page : 175-183

scholarly journals A Comparative Study Between Learning Cell and Direct Instructional Method to Teach Reading

2017 ◽  
Vol 5 (3) ◽  
Author(s):  
Purnawati Zuhro ◽  
Ngadiso Ngadiso ◽  
Siswantoro Siswantoro
Keyword(s):  
Comparative Study ◽  
Experimental Method ◽  
Reading Skill ◽  
Instructional Method ◽  
Control Group ◽  
Significant Difference ◽  
Eighth Grade Students ◽  
Class Viii ◽  
Academic Year ◽  
Experimental Group

<p><em>This research aim</em><em>s</em><em> to find out whether there is a significant difference in the achievement of reading skill between the students taught using learning cell and those taught using direct instructional method and whether learning cell is more effective than direct instructional method to teach reading.</em><em> </em><em>Related to the objectives of the research, the </em><em>method</em><em> used</em><em> was experimental method</em><em>. The research was conducted in August-</em><em>October</em><em> 2014. The population of this research was the eighth grade students of SMP N 14 Surakarta in the academic year of 2014/2015</em><em> and t</em><em>he sample were class VIII A as the experimental group and VIII B as the control group. The data were collected by conducting a test and </em><em>analyzed by using t-test formula.</em><em> </em><em>The</em><em> </em><em>computa</em><em>t</em><em>ion of the data shows </em><em>that</em><em> t</em><em>here is a significant difference in reading skill between the students taught using learning cell and those taught using direct instructional method</em><em> and that</em><em> learning cell is more effective than direct instructional method to teach readin</em><em>g</em>.<em></em></p>

scholarly journals Influence of FG Vega Technique on students’ academic performance in science 8

2021 ◽  
Vol 2 (2) ◽  
pp. 55-62
Author(s):  
Franco Gil A. Vega ◽  
Merlyn M. Lasaca
Keyword(s):  
Academic Performance ◽  
Experimental Method ◽  
Control Group ◽  
P Value ◽  
Significant Difference ◽  
Post Test ◽  
Quasi Experimental ◽  
The Mean ◽  
And Control ◽  
Experimental Group

This study was conducted to determine the influence of the FG Vega technique on students' academic performance to address the least learned competency in Science 8. Seventy students from Grade 8 classes served as respondents of the study. The study employed a quasi-experimental method. The mean score of students who took the post-test is 32.03 and 27.57 respectively for the experimental and control group. The results can be gleaned that the score of each student in the experimental group has a little variation of mean with 6.71 as compared to the control group with a variation of 7.52. The results can be observed that the mean score of students in the pre-test under the control group is 8.80 and 11.34 under the experimental group. Thus, the results of the study can be further concluded that the students under the experimental group outperformed the students in the control group. Since the significant level is lesser than the p-value of 0.05, indicates that there is a significant difference between the pre-test and post-test under the experimental group. Hence, there is a significant difference between the post-test of the experimental and control group.

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