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All Journal Jurnal Biologi dan Pembelajarannya (JBP) DIDAKTIKA BIOLOGI: Jurnal Penelitian Pendidikan Biologi Biosfer: Jurnal Pendidikan Biologi Bioma : Jurnal Biologi Indonesia BIOGENIC: Jurnal Ilmiah Biologi

Djamahar, Refirman

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Author-ID : 1200050

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Health Professions Immunology & microbiology

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Articles

HUBUNGAN KUALITAS TIDUR DAN AKTIVITAS FISIK DENGAN HASIL BELAJAR KOGNITIF SISTEM KOORDINASI MANUSIA Sulistia, Titan; Djamahar, Refirman; Rahayu, Sri
Didaktika Biologi: Jurnal Penelitian Pendidikan Biologi Vol 2, No 2 (2018): DIDAKTIKA BIOLOGI
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/dikbio.v2i2.1785

Kualitas tidur dan aktivitas fisik yang baik dapat meningkatkan daya konsentrasi dan memori belajar pada seseorang, sehingga berkontribusi pada hasil belajar kognitif yang diperoleh siswa. Tujuan penelitian ini adalah mengukur hubungan kualitas tidur dan aktivitas fisik dengan hasil belajar kognitif materi Sistem Koordinasi Manusia. Penelitian ini dilakukan di SMAN 21 Jakarta pada bulan Maret 2018. Metode penelitian yang digunakan adalah metode deskriptif kuantitatif dengan pendekatan cross sectional. Sampel diambil menggunakan simple random sampling sebanyak 125 siswa kelas XI IPA. Instrumen penelitian yang digunakan adalah instrumen tes hasil belajar Sistem Koordinasi Manusia, instrumen Pittsburgh Sleep Quality Index (PSQI) dan instrumen Physical Activity Qustionnaire Adolescents (PAQ-A). Hasil analisis uji prasyarat menunjukkan data terdistribusi normal dan homogen. Hasil perhitungan koefisien korelasi antara kualitas tidur dan hasil belajar kognitif menunjukkan hubungan positif yang signifikan, sedangkan korelasi antara aktivitas fisik dan hasil belajar kognitif menunjukkan hubungan negatif yang signifikan. Dalam penelitian ini, kontribusi kualitas tidur dan aktivitas fisik sebesar 18,6% dalam menentukan hasil belajar kognitif siswa. A good sleep quality and physical activity can increase the concentration and memory of learning in someone, thus contribute to cognitive learning outcomes obtained by students. The purpose of this study was to measure the relationship between sleep quality–physical activity and cognitive learning outcome on Human Coordination System subject. This study was conducted at SMAN 21 Jakarta in March 2018. The study method used the descriptive quantitative method with cross sectional approach. The samples were taken by simple random sampling as many as 125 students of 11th grade students of Science Class. The used instruments were the cognitive learning outcomes test, Pittsburgh Sleep Quality Index (PSQI) and Physical Activity Qustionnaire Adolescents (PAQ-A). The results of correlation coefficient calculation between sleep quality and cognitive learning outcomes showed a significant positive relationship. While the correlation between physical activity and cognitive learning outcomes showed a significant negative relationship. In this study, the contribution of sleep quality and physical activity was 18.6% in determining students' cognitive learning outcomes.

PERAN BADAN GOLGI DALAM PENGEMBANGAN TERAPI KANKER Hikmah, Ade Nurul; Sophian, Syifa Kamilah; Alfarizi, Muhammad Rafi; Supriyatin, Supriyatin; Djamahar, Refirman
BIOGENIC : Jurnal Ilmiah Biologi Vol 2 No 1 (2024): BIOGENIC: Jurnal Ilmiah Biologi
Publisher : Program Studi Biologi UNARS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/biogenic.v2i1.3877

Badan golgi berperan penting dalam pemrosesan, penyortiran, dan pengiriman protein, lipid, dan komponen seluler lainnya. Badan Golgi juga berfungsi untuk mengatur proses pengiriman, pelepasan, dan modifikasi protein setelah translasi, yang penting untuk pertumbuhan dan perkembangan kanker. Penelitian ini bertujuan untuk mengeksplorasi peran Badan Golgi dalam regulasi pertumbuhan sel kanker dan potensinya sebagai target terapi yang inovatif. Meskipun penelitian mengenai kemoterapi yang menargetkan badan golgi masih dalam tahap awal, tetapi beberapa pendekatan menjanjikan sedang diteliti yang mencakup penargetan protein gen interferon melalui jalur STING, pengarahan glikosilasi untuk mengatasi perubahan molekul gula dalam sel kanker, dan penargetan distribusi Golgi untuk menghambat proses distribusi protein di dalam sel sehingga mengurangi pertumbuhan tumor. Dengan metode penelitian studi literatur, penelitian ini mendukung hipotesis bahwa Badan Golgi dapat menjadi target potensial dalam terapi kanker dengan perannya dalam mekanisme sel kanker. Pentargetan glikosilasi yang terjadi di badan golgi serta pendekatan terapi GRASPIN dapat menghambat pertumbuhan tumor dan kapasitas metastasis sel kanker. Sehingga, diharapkan penelitian ini dapat menjadi gagasan baru untuk pengembangan terapi kanker yang lebih efektif dan berkelanjutan.

Deskripsi Tempat Penampungan Air Positif Larva Aedes aegypti di Kelurahan Cakung Timur Aulia, Sitti; Djamahar, Refirman; Rahmayanti, Rahmayanti
Bioma Vol. 10 No. 1 (2014): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Abstract The purpose of this study is describing the larva of Aedes aegypti positive water reservoir in Cakung Timur District, which is one of the endemic DHF areas. This is a descriptive research. This research was conducted to 100 residential houses, on October 2010. Larva that gets from water reservoir was brought to FMIPA UNJ laboratory to be examined further. There were 606 water reservoirs found in Cakung Timur District and 5.61% were Aedes aegypti larva positive. Type of water reservoir in Cakung Timur District with a potentially large against Aedes aegypti transmission is bath (15.13%), crock (4.80%), buckets (1.35%), and well (14.29%). Key words: Aedes aegypti larva, Cakung Timur District, water reservoir

HUBUNGAN KARAKTERISTIK LANSKAP DENGAN PREFERENSI SITUS OVIPOSISI KUPU-KUPU DI RUANG TERBUKA HIJAU KAWASAN JAKARTA TIMUR DIANA, PUTRI; DJAMAHAR, REFIRMAN; ISFAENI, HANUM
Bioma Vol. 11 No. 1 (2015): Bioma
Publisher : LPPM Universitas Negeri Jakarta

ABSTRACT Urban area is dominated by land that functioned of the interest of economy and settlement, but only a few land allocated for wildlife. The butterflies was one of the wildlife that could be found in urban areas.The remaining habitat that can be used by butterflies assumed confined to the urban green space. Based on its life cycle, the butterflies having an initial phase (egg to larvae) is a phase which is generally require specific habitat. This research aims to determine the relationship between landscape characteristic and oviposition site preferences of butterfly. This research was conducted on April to June, 2014 at fifteen urban green spaces in East Jakarta by using descriptive survey technique. Landscape characteristics measured include area, perimeter, lawn area, closed vegetation area, open vegetation area, non vegetation area. Landscape characteristic not only measured from urban green space, but also measured from the area around urban green space within the scope of 100 meters buffer. Results show that there is a relationship between landscape characteristic and oviposition site preferences. Significant positive correlation between the abundance and area correlation coefficients rs (0,546), open vegetation area rs (0,758) and non vegetation buffer area rs (0,688). There was no significant correlation between the abundance with perimeter area, lawn area, closed vegetation area, non vegetation area, lawn buffer, open vegetation buffer and closed vegetation buffer. Keywords: caterpillar,landscape characteristic, oviposition site, preferences, urban green space

Analisis Perilaku Harian Bangau Tongtong (Leptoptilos javanicus) di Taman Margasatwa Ragunan Choirunisa, Cantika; Safitri, Dini; Djamahar, Refirman
Jurnal Biologi dan Pembelajarannya (JB&P) Vol 11 No 2 (2024): Oktober 2024
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jbp.v11i2.22881

Lesser Adjutant are included in the 2016 IUCN red list vulnerable status,because the number of Lesser Adjutant populations continues to decreasedue to disturbances to the Lesser Adjutant population. Conservation efforts areneeded to save the Lesser Adjutant (Leptoptilos javanicus). Conservation canbe done both outside its place of origin (ex-situ) and in its natural habitat(in-situ). One place that acts as a shelter and conservation site for LesserAdjutant, located in DKI Jakarta, is Ragunan Zoo. Ragunan Wildlife Parkserves as an area to protect and care for Indonesian animals, including LesserAdjutant. This study aims to observe the daily behaviour of Lesser Adjutant(Leptoptilos javanicus) in Ragunan Zoo. The research method used wasdescriptive qualitative method by observing daily behaviour in captivity. Dataanalysis techniques were carried out descriptively qualitative with observationtechniques accompanied by supporting photos. The results showed the dailybehaviour of Lesser Adjutant in captivity, namely eating, grooming, resistance,watching, and flying.

Relationship between Knowledge of Menstruation with the Female Teenage Readiness in Facing Menarche Rohmah, Elis; Djamahar, Refirman; Rahayu, Sri
Biosfer: Jurnal Pendidikan Biologi Vol. 8 No. 1 (2015): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Adolescence is a critical period in a human development stage. One of the most important periods for female teenage is menarche that causes different impact, one of them is psychological impact. Acquired knowledge about menstruation will affect the perception of adolescents about menarche that can also affect the readiness of the girls in facing menarche. The purpose of this study was to determine the relationship between knowledge about menstruation with the readiness of female teenage in facing menarche. This research was conducted in SDN lubang buaya 01 and 05 on May-June 2015. Data obtained by giving knowledge and readiness questionnaire to 47 respondents in SDN Lubang Buaya 01 and as many as 51 respondents in SDN Lubang Buaya 05. Data were analyzed by using a simple correlation - regression test. The correlation coefficient (rxy) was 0.593 indicates that there is a moderate possitive relationship between Knowledge of Menstruation with the Female Teenage Readiness in Facing Menarche through the regression model Å¶ = 29.831 + 0,649X. It can be conclude that the knowledge has a moderate positive relationship with the female teenage readiness in facing menarche.

Effect of Application of Ular Tangga Game Media on Cognitive Learning Result of Human Reproductive System Nisa, Aulia; Djamahar, Refirman; Evriyani, Dian
Biosfer: Jurnal Pendidikan Biologi Vol. 8 No. 2 (2015): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

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 Î± = 0.05. Based on the calculation, it was found that the p value =0.002. Since p < Î±, 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.

Co-Authors Alfarizi, Muhammad Rafi Aulia, Sitti Choirunisa, Cantika Dini Safitri Evriyani, Dian Hanum Isfaeni Hikmah, Ade Nurul Nisa, Aulia Putri Diana Rahmayanti Rahmayanti Rohmah, Elis Sophian, Syifa Kamilah SRI RAHAYU Sulistia, Titan Supriyatin Supriyatin

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