The aim of this study is to find out and analyze the effect of a worksheet based learning of rotational dynamics on students’ critical thinking skills viewed from IQ score and the correlation between critical thinking skills and the students’ IQ score. This research has been conducted in even semester of the academic year of 2017/2018, in university in Bandung area. All students in a university in Bandung City are the population for this study with the target population are all students in the first year in the university year of 2017/2018. The sample in this study is the first semester of Physics Education students as an experimental group, selected using purposive sampling technique, with data collecting tool in the form of written test of critical thinking skill and IQ. The research design used is one shot case design. A hypothesis test is done by using correlation and regression. The whole test of this data analysis used SPSS program. The results of this study indicate that the learning-based student's worksheet on the concept of Rotational Dynamics significantly influences students' critical thinking skills. It can be seen from the score of n-gain which is 0.5. Based on the calculation on correlation obtained value of 0.185 <0.5, it means that IQ scores correlated weakly to the students’ critical thinking score, while the regression value of 0.303> 0.05, in other words, the students’ IQ score does not affect the students’ critical thinking skills. So it can be concluded that there is no correlation between IQ and critical thinking skills which seen from the results of correlation and regression analysis.

The examination of the acoustic characteristic of rice bran has been performed. The materials are the alternative materials of the noise controllerfrom the use of synthetic fiber materials like glasswool. The examination is completed by using tube impedance method. The result of the examination reveals that the natural fiber materials that have been mixed with glue have a good value of sound absorption at frequency 400-1200 Hz whereas at frequency 200 Hz, its value does not change significantly. The high value of the sound absorption is owned by materials with the bigger porous. Beside the coefficient of the absorbtion, the examination of value of acoustic impendence is also performed. The result shows that the similar composition between natural fiber and glue has a bigger value of impendence compared to the lower composition of glue. It is caused by the fulfillment of the bigger amount of the porous by glue.

The aims of this research were to conduct a study on genetic variation C. trifenestrata collected from several sampling locations using ISSR (Inter-Simple Sequence Repeat) molecular markers. The applied methods of the research were to collect samples (C. trifenestrata), isolation DNA genome, and analysis of genetic variation using the ISSR-PCR method. Based on genetic variation analysis using 4 primers (ISSR 1, ISSR 2, ISSR 6, dan ISSR 7), it is known that the level of genetic variation and polymorphism of C. trifenestrata is high with a percentage of 98.9%. The formed dendogram showed that the 29 studied samples of C. trifenestrata separate into two major groups at the similarity level of (0,60) 60%.

This study aimed to describe the activities in the field trip of animal ecology course and describe the identification and classification skills of students at Animal Ecology course. Also, this study describes students responses on-field activities. This study uses a quasi-experimental method using only post-test design. Data analysis using quantitative descriptive analysis techniques. The research subject as many as 30 students to take the test and 40 students are given a questionnaire. The results showed that the CPL course and CPL subjects not relevant to the fact that in both CPL there are some points the use of science and technology, the reality in the learning process technology, it is also supported by student response on the issue. The identification and classification skills of students included in the category sufficient. Analysis of Pearson correlation between the identification and classification skills showed no significant relationship (-.107), it is contrary to some assumptions that states that the ability to identify a basis for classification capability. Thus the results of this study can be used as an input or reference to the development of the program of courses, especially in the subject of animal ecology.

Keywords:Animal ecology fieldtrip; Classification skills; Identification Skills

ebird

STUDY OF HUMAN ANCESTORS NUSA TENGGARA TIMUR INDONESIA BASED ON Y CHROMOSOME.

Genetic studies conducted in NTT region focused on four islands namely Flores, Sumba, Alor, and Timor. The islands of NTT are a transition zone between Papuan and Austronesian speakers. Genetically there is also an intensive mixing. The dominant genetic of tribes in Alor island is Papua / Melanesia, but on the other islands there is almost uniform mixing. In the western part of Sumba Island there is a majority area of the Papuan/ Melanesian genetic type, while the tribes in eastern Sumba, Sabu and Rote are Austronesian. Genetic mixing is also seen on Timor Island. West Timor is the more dominantly Austronesian type, while central and eastern Timor are a mixture of Papua/ Melanesia with Austronesian. On such Flores islands, the tribes in the eastern and central regions have the Papua/ Melanesian type, while the western part is almost entirely of Austronesian type. The tribes on Solor, Lembata and Adonara Islands also have mixed types between Austronesia and Papua/ Melanesia. Based on paternal lineage, the blood flowing in NTT people consists of seven line ages of East Asia, Taiwan, Southeast Asia, Arab, Japan, Europe and Papua/ Melanesia, characterized by the detection of thirty-two Y-DNA markers: C-M130/ RPS4Y, F-P14/F-M89 (East Asia), NO-M214, O-M175, O-M119, O-M95, O-P203, O-M110, O-M122, O-M134, O-P201, O-JST3002611 (Taiwan), K-M526, K-P397, K-P405, K-P79, K-P336, P-P295, Q-M242, Q-P36 (Southeast Asia), J-M172 (Arab), C-P343, D-M116 (Japan), E-P1 (Europe),C-M38, C-M208, C-P355, M-P256, M-M4, M-P34, S-M230, S-M254, S-P377 (Melanesia).

Studi genetik yang dilakukan di daerah NTT difokuskan pada empat pulau yakni Flores, Sumba, Alor, dan Timor. Pulau-pulau di NTT menjadi zona transisi antara penutur Papua dan Austronesia. Secara genetika juga terjadi pembauran yang intensif. Suku di pulau Alor, genetiknya dominan Papua/ Melanesia, namun di pulau-pulau lain terjadi pembauran hampir merata. Di Pulau Sumba bagian barat ada kawasan yang genetikanya mayoritas bertipe Papua/ Melanesia, sedangkan suku di Sumba bagian timur, Sabu dan Rote bertipe Austronesia. Pembauran genetika juga terlihat di Pulau Timor. Timor barat lebih dominan bertipe Austronesia sedangkan Timor bagian tengah dan timur merupakan campuran Papua/ Melanesia dengan Austronesia. Di pulau florespun demikian, yakni suku-suku di bagian timur dan tengah memiliki tipe Papua/ Melanesia, sedangkan bagian barat hampir seluruhnya memiliki tipe Austronesia. Suku-suku di pulau Solor, Lembata dan Adonara juga memiliki tipe campuran antara Austronesia dan Papua/ Melanesia. Berdasarkan garis keturunan ayah, darah yang mengalir dalam orang NTT terdiri atas tujuh garis keturunan yaitu Asia Timur, Taiwan, Asia Tenggara, Arab, Jepang, Eropa dan Papua/ Melanesia, yang ditandai dengan terdeteksinya tiga puluh tiga penanda Y-DNA yakni: C-M130/ RPS4Y, F-P14/F-M89 (Asia Timur), NO-M214, O-M175, O-M119, O-M95, O-P203, O-M110, O-M122, O-M134, O-P201, O-JST3002611 (Taiwan), K-M526, K-P397, K-P405, K-P79, K-P336, P-P295, Q-M242, Q-P36 (Asa Tenggara), J-M172 (Arab), C-P343, D-M116 (Jepang), E-P1 (Eropa),C-M38, C-M208, C-P355, M-P256, M-M4, M-P34, S-M230, S-M254, S-P377. (Melanesia)

The aim of this study is to characterize the behavior of the environmental air using a simple method which can be implemented as a learning media in senior high school or undergraduate students. The method used is experimental which combined with curve fitting. From the curve fitting step, the behavior of the air can be explained. Otherwise, the quantitative data such as Van der Waals constants can also be obtained. From this study obtained that the Van der Waals constants, a and b, of the chosen air samples as large as (11.23 ± 0.84) J.m3/mol2 and (2.04 ± 0.15) × 10-3 m3/mol respectively. These results can be used to predict that the chosen air samples will act as an ideal gas at 636.5 K and 105 Pa in temperature and pressure respectively.

Tujuan dari penelitian ini untuk mengetahui perilaku udara sekitar dalam tinjauan sebagai gas ideal atau gas nyata dengan metode sederhana yang dapat diterapkan sebagai media pembelajaran baik di tingkat perguruan tinggi maupun sekolah menengah atas. Metode yang digunakan adalah eksperimen yang dipadukan dengan pencocokan kurva. Informasi terkait kecenderungan perilaku udara sekitar diperoleh dari tahapan pencocokan kurva. Nilai kuantitatif yang berupa konstanta Van der Waals dari sampel udara sekitar juga dapat diperoleh dari persamaan hasil pencocokan kurva yaitu a dan b secara berturut-turut sebesar (11.23 ± 0.84) J.m3/mol2 dan (2.04 ± 0.15) × 10-3 m3/mol. Nilai konstanta yang diperoleh dapat digunakan untuk memprediksi bahwa sampel udara yang diamati akan berperilaku sebagai gas ideal ketika bersuhu 636.5 K dengan tekanan 105 Pa.