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PENERAPAN MEDIA PEMBELAJARAN LKS MODEL INKUIRI UNTUK MENINGKATKAN MOTIVASI BELAJAR SISWA PADA MATA PELAJARAN IPS Muzaki, Ahmad; Sumarna, Cecep
Edueksos : Jurnal Pendidikan Sosial & Ekonomi Vol 8, No 1 (2019): Pedagogik dan Kajian Gender
Publisher : Jurusan Tadris IPS Fakultas Ilmu Tarbiyah dan Keguruan IAIN Syekh Nurjati Cirebon

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Abstract

ABSTRAK Tujuan penelitian ini adalah untuk meningkatkan motivasi belajar siswa pada mata pelajaran IPS sedangkan secara khusus penelitian ini bertujuan untuk mendeskripsikan penerapan media LKS menggunakan model pembelajaran Inkuiri di kelas VIII B SMP Muhammadiyah 01 Sirampog Kabupaten Brebes. Penelitian ini bertolak dari pemikiran bahwa siswa belum memiliki media pembelajaran yang mandiri sehingga mengalami kesulitan dalam mencari sumber belajar sehingga diharapkan dengan diterapkannya media pembelajaran LKS yang bersifat mandiri dikemas dengan model pembelajaran Inkuiri dan secara tidak langsung siswa memiliki tanggung jawab masing-masing maka diharapkan motivasi belajar siswa meningkat.Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Subjek penelitian adalah siswa kelas VIII B SMP Muhammadiyah 01 Sirampog Kabupaten Brebes Adapun teknik pengumpulan datanya menggunakan observasi dan tes, serta instrumennya berupa lembar pengamatan dan soal tes.Hasil penelitian menunjukan adanya peningkatan motivasi dan hasil belajar siswa berdasarkan hasil pengamatan motivasi belajar siswa pada siklus 1 sebesar 52% kemudian siklus 2 sebesar 72,5% dan siklus 3 sebesar 90%. Sedangkan hasil belajar siswa pra siklus diperoleh nilai rata-rata 58,06 dengan persentase ketuntasan belajar siswa sebesar 36% atau hanya 12 siswa yang tuntas. Setelah dilaksanakannya siklus 1 diperoleh nilai rata-rata 64,09 dengan persentase ketuntasan belajar 54% atau 20 siswa yang tuntas, selanjutnya siklus 2 diperoleh nilai rata-rata kelas 70,15 dengan persentase 69% atau 23 siswa tuntas dan siklus 3 diperoleh nilai rata-rata kelas 82,69 dengan presentase 93% atau 31 siswa tuntas dari 33 siswa. Dengan demikian dapat disimpulkan penerapan media LKS model Inkuiri dapat meningkatkan motivasi belajar siswa. Kata kunci: PersepsiSiswa, PolaInteraksiSosial, Pembelajaran IPS.
Learning with Abductive-Pictorial Strategy for Improving Mathematical Proofing Ability of Prospective Mathematics Teachers Muzaki, Ahmad; KUSUMAH, YAYA S; SABANDAR, JOZUA
International Journal of Science and Applied Science: Conference Series Vol 2, No 1 (2017): International Conference on Science and Applied Science 2017
Publisher : Universitas Sebelas Maret

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Abstract

This study aims to improve the mathematical proofing ability of prospective mathematics teachers in IKIP Mataram using Abductive - Pictorial Strategy (which will be abbreviated as APS). This study used an explanatory sequential design, a combination of quantitative and qualitative methods in sequence. The first stage is done by quantitative method and the second stage with qualitative method. Quantitative method is used to obtain measurable data and qualitative method is used to explore the findings obtained from the quantitative stage. This research considers the Prior Mathematical Knowledge (PMK) factor of prospective teacher. The results showed that the improvement of students' mathematical proofing ability in high, medium, and low PMK categories with APS better than Conventional Learning (CL). The mean improvement of students' mathematical proofing ability in high PMK category which got learning with APS and PK included in medium category. The mean improvement of students' mathematical proofing ability in medium PMK category with APS included in medium category, with CL included in low category. The mean improvement of students' mathematical proofing ability in the low PMK category with APS and CL included in low category.
GROW OUT AND EVALUATION OF FIRST GENERATION (F1) OF PROSPECTIVE HUMPBACK GROUPER Cromileptes altivelis BROODSTOCK Tridjoko, .; Wardana, Ida Komang; Muzaki, Ahmad
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 8, No 2 (2016): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Bogor Agricultural University

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Abstract

During this time the humpback grouper broodstock spawning that comes from nature. Efforts to provide humpback grouper fish from cultured (F1) has been conducted and it has been spawn.  The purpose of this study was to determine the quality of broodstock first generation (F1) with a good maintenance management and monitoring evaluation of character growth, gonad development, and genetic characteristics through microsatelite marker.  Broodstock reared in concrete tank volume of 75 m3 with three different of hormonal implantation treatments: (1) estradiol, (2) 17α-methyltestosterone (MT), (3) a mixture of 17α-Methyl-testosterone by aromatase inhibitors, and control. The observed parameters were growth, gonad development, reproductive hormones in the blood composition and the performance of genetic through microsatellite analysis. The results showed that the humpback grouper F1 implantation treatment by methyl testosterone and estradiol showed good growth with an average body weight at the end of the observed ranged from 680 ± 60.5 to 820 ± 76,5g with an average body length of 34 -36 cm. In individual control growth better because during the maintenance of the population is not implanted. Analyses of testosterone and estradiol in the blood plasma showed that 40% of individuals in the population were males. Microsatellite analysis showed that F1 fish had good genetic variation (0.778-1.000) so that it can be used as broodstock candidate. 
PHENOTYPIC AND GENOTYPIC PERFORMANCES OF BLACK TIGER SHRIMP, Penaeus monodon HAVING FAST GROWTH TRAITS Haryanti, Haryanti; Muzaki, Ahmad; Wardana, Ida Komang; Fachrudin, Fachrudin; Sembiring, Sari Budi Moria; Permana, I Gusti Ngurah
Indonesian Aquaculture Journal Vol 4, No 2 (2009): (December 2009)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

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Abstract

Shrimp breeding research focusing on fast growth traits is important to develop better phenotypic and genotypic characters of shrimp spawners. The aim of this research was to evaluate shrimp breeding technology to produce fry having fast growth traits. Selection was initiated from the breeding of wild shrimp spawners (F-0) based on full sib mating, probiotics, biosecurity, and viral diseases diagnosis. Viral disease diagnoses were performed using 7 viruses (TSV, WSSV, IHHNV, YHV, BP, MBV, and HPV) provided in the IQ-2000 kit. The result showed that 11 families of the first generation (F-1) shrimp were phenotypically varied (big, regular and small size). Number of fry from the first generation resulted from phenotypic selection that have fast growth trait ranged between 1.99% and 4.49% of the total fry population. Genotypic performance of the shrimp broodstock (F-0) and the first generation (F-1) showed different genetic variations. Heterozigosity values were 0.2872±0.0047 (female) and 0.5487±0.0103 (male) for shrimp broodstock (F-0), 0.704±0.0261 for the first generation (F-1) having fast growth trait, and 0.6224±0.023 for F-1 having slow growth. Gene markers of fast growth trait were indicated by the genes with molecular weights of 1,025; 1,280; and 1,325 basepairs and having different DNA sequences compared to that of slow growth shrimp.
THE EFFECT OF PROBIOTIC ON IMMUNITY IMPROVEMENT IN THE FRY AND SPAWNER PRODUCTION OF PACIFIC WHITE SHRIMP Litopenaeus vannamei Haryanti, Haryanti; Muzaki, Ahmad; Sembiring, Sari Budi Moria; Fahrudin, Fahrudin; Permana, I Gusti Ngurah; Wardana, Ida Komang
Indonesian Aquaculture Journal Vol 9, No 2 (2014): (December 2014)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

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Abstract

In order to improve immune system of Pacific white shrimp L. vannamei from any kinds of diseases, various probiotic agents were tested such as Bacillus sp. BC, Alteromonas sp. BY-9 and mixed of both. The probiotics were cultured and added directly to the larval rearing tank (106 cfu/mL equal to 0.5 liter/m3) up to PL-12. In cultured shrimp spawners, probiotic was mixed with feed coated with chitosan, and without adding probiotic as control. In the present experiment, shrimp fry and spawners were reared in tank capacity of 5 m3 and 8 m3. Immunity response was analyzed by quantitative value of the immunity related gene expression with RTqPCR. The results showed that survival rate of shrimp fry cultured with mixed probiotic was 63.16% (PL-8) and 53.46% (PL-12), while control 13.35% (PL-8) and 12.48% (PL-12) respectively. The number of shrimp hemocytes starting from 420 to 530.5 x 104 cells/mL and after challenged with WSSV (for 72 hrs exposure) between two treatments of Alteromonas sp. BY-9 and Bacillus cereus BC was not significantly different P>0.05 (402.5 and 432.5 x 104 cells/mL), while in mixed probiotic and control treatments were 391.75 and 229.0 x 104 cells/mL, respectively. The analysis of immunity gene expression revealed that the use of probiotic from larval stages up to spawner has been proved in increasing immunity responses quantified from ProPO activating system (prophenoloxidase/proPO) as much as 1.6-2.0 fold, clotting system (transglutaminase, clotting protein) of 1.5-2 fold, Antimicrobial Peptide System (anti-LPS factor, crustin, lysozyme, penaiedin2) of 1.5-2.8 fold, and Antioxidant defense mechanism (superoxidase dismutase/SOD, glutathione peroxidase/GPx) of 1.8-2.0 fold compared to control.
ADDITION OF ADJUVANTS IN RECOMBINANT SUBUNIT VACCINES FOR THE PREVENTION OF GROUPER SLEEPY DISEASE IRIDOVIRUS (GSDIV) INFECTION IN HUMPBACK GROUPER, Cromileptes altivelis Mahardika, Ketut; Mastuti, Indah; Muzaki, Ahmad; Sudewi, Sudewi
Indonesian Aquaculture Journal Vol 11, No 2 (2016): (December, 2016)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

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Abstract

Infection of grouper sleepy disease iridovirus (GSDIV) which is a member of Megalocytivirus causes mass mortalities in marine fish in Indonesia. This study was conducted to know the effectiveness of recombinant subunit vaccine of GSDIV with an addition of adjuvants against GSDIV infection. Inactive bacteria Eschericia coli containing recombinant MCP-GSDIV protein was added with montanide ISA adjuvant at a ratio of 3:7. The vaccine was administered to humpback grouper, Cromileptes altivelis by intramuscular and intraperitoneal injection at a dose of 0.1 mL/fish. Test of the vaccine in humpback grouper was performed in four replicates (four trials). Results of the vaccination showed that the recombinant protein vaccine added with the adjuvant increased immunity of humpback grouper, indicated by higher relative percent survival (RPS= 77.78%) compared to negative control (PBS) and 50% higher compared to protein control (pET Sumo CAT) at two weeks post vaccination. The RPS values of the recombinant protein vaccine were still higher (53.57%-72.73%) than those of the control vaccine and 25%-53.33% of the protein control in the 4th week post vaccination. GSDIV detection by PCR showed that MCP-GSDIV-DNA and pET Sumo CAT-DNA were not detected in the vaccinated fish after one, two, three, and four weeks post vaccination. The fish died in both of vaccinated and control groups after experimental challenge with GSDIV were found to be infected with GSDIV. It can be stated that recombinant subunit vaccine of GSDIV with the addition of montanide ISA adjuvant could be used to prevent and diminish mortalities of grouper against GSDIV infection.
REPRODUCTIVE ASPECTS OF CULTURED HUMPBACK GROUPER (Cromileptes altivelis) FOR SUPPORTING SEED PRODUCTION Sembiring, Sari Budi Moria; Hutapea, John Harianto; Muzaki, Ahmad; Wardana, Ida Komang; Astuti, Ni Wayan Widya; Andamari, Retno
Indonesian Aquaculture Journal Vol 9, No 1 (2014): (June 2014)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

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Abstract

Humpback grouper (Cromileptes altivelis) has been successfully spawned in 2000 by IMRAD (Institute of Mariculture Research and Development) and there are already the third generation (F3) currently. The reproductive aspects need to be studied to support the success of seed production. Humpback grouper reared in floating cage (F1 and F3) had matured (gonad stage 4) while F2 fish reared in concrete tanks has spawned. Gonadal maturity stage of 38 fishes from first generation (F1) and 35 fishes from the third generation were observed in June 2013 and compared to gonadal maturity stage of 18 fishes from the second generation observed in June 2009. Samples were measured in total length and body weight and gonads were taken for histology preparation to determine gonadal maturity stage and the sex. From the histological observation of the gonads, it showed that all female humpback grouper were in early maturity stage (stage I and II) with gonadal maturity index between 0.12% and 5.45%. Further, it was observed that the same gonad was found in different maturity stage and concluded that humpback groupers were multiple spawners (asynchronous). By determining gonadal maturity level, it was also known the minimum size for grouper ready to spawn.
PERFORMA BENIH TIRAM MUTIARA (Pinctada maxima) DARI HASIL PERSILANGAN INDUK ALAM Wardana, Ida Komang; Sudewi, Sudewi; Sembiring, Sari Budi Moria; Muzaki, Ahmad
Jurnal Riset Akuakultur Vol 10, No 3 (2015): (September 2015)
Publisher : Pusat Riset Perikanan, Badan Riset dan Sumber Daya Manusia Kelautan dan Perikanan

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Abstract

Tiram mutiara merupakan salah satu komoditas andalan dalam budidaya laut. Masalah utama yang dihadapi adalah pasok benih baik kuantitas maupun kualitas. Upaya perbaikan dilakukan dengan perkawinan silang antar varietas tiram dengan tujuan untuk memperbaiki kualitas benih Tiram Mutiara (Pinctada maxima) baik secara fenotip maupun genotip. Induk yang disilangkan secara resiprokal mempunyai karakter nacre putih (P) dan kuning (K) baik populasi Bali maupun Maluku. Hasil penelitian menunjukkan bahwa persilangan dua populasi tersebut menghasilkan tiga varietas yaitu: varietas I (K x P), varietas II (K x K) dan varietas III (P x K). Nilai SR pada fase pediveliger dari ketiga varietas menghasilkan sintasan berturut-turut 65%, 59%, dan 45%. Pertumbuhan varietas III menunjukkan pertumbuhan yang cukup baik dengan kisaran panjang cangkang 3,0-4,5 cm pada umur dua bulan pemeliharaan. Analisis genetik dengan RAPD-DNA menunjukkan bahwa induk-induk yang berhasil memijah mempunyai variasi genetik 0,3755; 0,3938; dan 0,1600. Sedangkan turunan F1 mempunyai variasi genetik lebih rendah yaitu: 0,2738; 0,2667; dan 0,0924.
THE DIGESTIVE TRACT DEVELOPMENT OF THE TIGER GROUPER Epinephelus fuscoguttatus LARVAE TREATED WITH THYROXINE HORMONE Muzaki, Ahmad; Mahardika, Ketut; Mastuti, Indah; Andriyanto, Wawan; Asih, Yasmina Nirmala; Wardana, Ida Komang
Indonesian Aquaculture Journal Vol 7, No 2 (2012): (December 2012)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

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Abstract

Thyroxin administration in tiger grouper larval rearing was conducted to determine its effect on development of digestive tract of the larvae. Newly hatched larvae were treated with 0 mg/L (control), 0.1 mg/L, and 0.2 mg/L of thyroxin for 2 hours in a 30 L tank before were transferred into a 1 m3 rearing tank. Samples were collected daily until 10 DAH and every 3 days until 40 DAH. Development of digestive tract was observed using histological method. For all treatments, the digestive tract was the same on 1 DAH and 2 DAH. The digestive tract of 1 DAH larvae was still closed and still in the form of a simple tube. The mouth, buccopharynx, liver, pancreas, and rectum were found on 2 DAH. On 3 DAH, the esophagus, stomach, intestines, and anus started to develop. At this stage, the digestive tract of larvae treated with and without thyroxin started to become distinguishable. Several goblet cells were noticed in the rectum of the treated larvae but not in the control. Digestive tract developed earlier in treated larvae compared to the control group, such as appearance of tongue, gill raker, fundic, and cardiac stomach development, formation of pharyngeal tooth, and gastric gland. Metamorphosis of larvae into juvenile on treated larvae occurred than that the control larvae earlier.
FLUCTUATING ASYMMETRY REFLECT THE GROWTH OF HYBRID GROUPER Epinephelus fuscoguttatus AND Epinephelus polyphekadion Sugama, Ketut; Muzaki, Ahmad; Permana, I Gusti Ngurah; Haryanti, Haryanti
Indonesian Aquaculture Journal Vol 9, No 2 (2014): (December 2014)
Publisher : Pusat Penelitian dan Pengembangan Perikanan, Badan Penelitian dan Pengembangan Kelautan da

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Abstract

Fluctuating asymmetry has been widely used as a measure of developmental stability and as an indicator of individual fish growth. The present study compared fluctuating asymmetry in three bilateral meristic traits of F-1 hybrid between female Epinephelus fuscoguttatus and male Epinephelus polyphekadion and two F-1 pure parental progenies. The fishes were reared by communal and separate tank systems. Hybrids were confirmed by allozymes electrophoresis. After three months of rearing, the F-1 hybrids fish grew faster 45.9% and 66.6% compare to the F-1 pure parental progenies of E. fuscoguttatus and E. polyphekadion (P<005) respectively. Development stability as measured by fluctuating asymmetry was lower in hybrid (20%-40%) than in the pure parental progenies (53%-80%). Among four enzyme loci examined, only Pgm locus showed variants and at that locus all hybrids fish were heterozygous. Heterozygous hybrids showed lower fluctuating asymmetry and related to higher developmental stability. The higher developmental stability positively reflected a faster growth rate. Thus this finding can be used to explain the reason that why hybrids groupers appeared grew faster than parental species.