The Correlation Between the Students' Motivation and Their Writing Ability

Tujuan penelitian ini adalah untuk menemukan apakah ada hubungan antara motivasi siswa dengan kemampuan menulis siswa. Desain penelitian ini adalah kuantitatif menggunakan ex post facto designs. Populasi dari penelitian ini adalah siswa kelas dua di SMA Bandar Lampung. Peneliti menggunakan sampel penelitian sebanyak 34 siswa. Instrumen yang digunakan adalah tes motivasi siswa dan tes menulis. Data yang terkumpul dianalisis menggunakan Pearson Product Moment Correlation di SPSS 16.0. Hasil penelitian menunjukkan bahwa nilai r dari motivasi siswa dan kemampuan menulis siswa .921 dan .719. Dapat disimpulkan bahwa ada hubungan yang significant antara motivasi siswa dan kemampuan menulis siswa. Semakin tinggi motivasi siswa maka semakin tinggi pula kemampuan menulis siswa. The purpose of this study was to find out whether there was a significant correlation between the students' motivation and their writing ability. This was quantitative research applied ex post facto designs. The population of this study was the second grade students of SMA Bandar Lampung. The researcher used sample of 34 students. The instruments of this research were numbering of students' motivation test and writing test. The collected data were analyzed by using Pearson Product Moment Correlation in SPSS 16.0. The result showed that r of students' motivation and their writing ability was .921 and .719. Therefore, it can be concluded that there was significant correlation between students' motivation and their writing ability. The higher students' motivation, the higher students' writing ability will be

Increasing Students’ Speaking Ability Through Persuasive Group Presentation

Tujuan penelitian ini adalah untuk menemukan perbedaan signifikan pada prestasi berbicara siswa setelah diajarkan melalui teknik persuasive group presentation, mengetahui apakah persuasive group presentation dapat meningkatkan kemampuan berbicara siswa pada aspek kosa kata, kelancaran, pemahaman, pelafalan, dan tata bahasa, serta menganalisa proses belajar mengajar dengan menggunakan teknik tersebut. Penelitian ini menggunakan metode penggabungan antara kuantitatif dan kualitatif. Sampel dipilih secara khusus berdasarkan tingginya nilai bahasa Inggris yaitu kelas XI IPA1. Hasil menyimpulkan bahwa adanya perbedaan prestasi belajar siswa secara signifikan pada level 0.05 karena t-ratio lebih besar dari t-table (5746 > 2045), kemampuan berbicara siswa meningkat setelah mereka diajarkan melalui teknik persuasive group presentation, dan proses belajar mengajar melalui teknik tersebut telah berjalan lancar meskipun adanya beberapa masalah yang dihadapi oleh siswa dan guru bahasa Inggris.The aims of this study are to find out significant difference of students’ speaking achievement after being taught through persuasive group presentation technique, whether or not persuasive group presentation can be used to increase students’ speaking aspects in terms of vocabulary, fluency, comprehension, pronunciation, grammar and analyze teaching learning process by using current technique. This research used mix method between quantitative and qualitative. The sample was chosen purposively based on the highest score that was XI IPA1. The results are there is significant difference in level 0.05 because t-ratio is higher than t-table (5746 > 2045), students’ achievement was increasing after they taught through persuasive group presentation technique, and teaching learning process by using current technique ran well although there are problems which faced by students and English teacher.

Comparative Study Between Students with Intrinsic and Extrinsic Motivation in Reading Comprehension

Tujuan penelitian ini adalah untuk menemukan apakah ada perbedaan yang signifikan antara siswa yang memiliki motivasi intrinsik dan motivasi ekstrinsik pada pemahaman membaca. Desain penelitian ini adalah kuantitatif dengan menggunakan ex post facto design. Sejumlah 37 siswa dari kelas XI IPA 4 SMA dipilih sebagai kelas sampel. Instrumen yang digunakan pada penelitian ini adalah kuesioner untuk membedakan motivasi intrinsik dan tes pemahaman membaca. Data yang terkumpul dianalisis menggunakan Independent t-test. Hasil dari perhitungan menunjukan bahwa t hitung adalah 3.122 pada level signifikansi 0.05, artinya bahwa t-hitung > t-tabel (3.122 > 2.030). Dapat disimpulkan bahwa ada perbedaan yang signifikan antara siswa yang memiliki motivasi intrinsik dan motivasi ekstrinsik pada pemahaman membaca. The objective of this research was to find out whether there was significant difference between students with intrinsic and extrinsic motivation in reading comprehension. This was quantitative research applying ex-post facto design. 37 students of XI Science 4 Senior High School were selected as sample class of this research. The instruments that used in this research were questionnaire of the intrinsic and extrinsic motivation and reading comprehension test. The data collected were analyzed by using Independent t-test. The result of computation showed that the t count was 3.122 at the significance level 0.05, meaning that t-count > t-table (3.122 > 2.030). Therefore, it can be concluded that there was significant difference between students who have intrinsic and extrinsic motivation in reading comprehension. Keywords: extrinsic motivation, intrinsic motivation, reading comprehensio

Improving Students\u27 Reading Comprehension Through Wh-questions Technique

Tujuan dari penelitian ini adalah untuk menyelidiki apakah terdapat perbedaan yang signifikan dari kemampuan siswa dalam memahami bacaan sebelum dan setelah penerapan teknik WH- Questions dan untuk menyelidiki apakah teknik WH-Questions memberikan peningkatan yang signifikan terhadap kemampuan siswa dalam memahami bacaan. Data diperoleh dari pre-test dan post-test untuk mengetahui apakah ada peningkatan kemampuan siswa dalam memahami bacaan setelah diajar dengan menggunakan teknik WH-Questions. Hasil penelitian menunjukkan bahwa t-value lebih tinggi dari t-tabel (7,050> 2,045) dan α (0,00 2.045) and α (0.00 < 0.05) meaning there was significance difference between students\u27 mean score in pretest and posttest. The highest improvement came from finding detail information aspect. The mean score of this aspect in the pretest was 67 then increased to 85 in the posttest. So, it can be concluded that WH-question technique gave a positive effect to improve students\u27 reading comprehension, especially in finding detail information

Optical coherence tomography- a non-invasive technique applied to conservation of paintings

It is current practice to take tiny samples from a painting to mount and examine in cross-section under a microscope. However, since conservation practice and ethics limit sampling to a minimum and to areas along cracks and edges of paintings, which are often unrepresentative of the whole painting, results from such analyses cannot be taken as representative of a painting as a whole. Recently in a preliminary study, we have demonstrated that near-infrared Optical Coherence Tomography (OCT) can be used directly on paintings to examine the cross-section of paint and varnish layers without contact and the need to take samples. OCT is an optical interferometric technique developed for in vivo imaging of the eye and biological tissues; it is essentially a scanning Michelson’s interferometer with a ‘broadband’ source that has the spatial coherence of a laser. The low temporal coherence and high spatial concentration of the source are the keys to high depth resolution and high sensitivity 3D imaging. The technique is non-invasive and noncontact with a typical working distance of 2 cm. This non-invasive technique enables cross-sections to be examined anywhere on a painting. In this paper, we will report new results on applying near-infrared en-face OCT to paintings conservation and extend the application to the examination of underdrawings, drying processes, and quantitative measurements of optical properties of paint and varnish layers

Application of OCT to examination of easel paintings

We present results of applying low coherence interferometry to gallery paintings. Infrared low coherence interferometry is capable of non-destructive examination of paintings in 3D, which shows not only the structure of the varnish layer but also the paint layers

Regenerasi dan Aklimatisasi Kultur Antera Enam Persilangan F1 Padi Sawah

The breeding of rainfed rice tolerant to drought can be accomplished using anther culture. The objectives of this research were to determine regeneration abilities of six F1 anther culture and its acclimatization ability. The experiment was arranged in completely randomized design with 14 replications. The treatments consisted of six F1 derived from crossing: INPARI 18 x IR83140-B-11-B (G1), INPARI 18 x B12825E-TB-1-25 (G2), INPARI 18 x IR87705-14-11-B-SKI-12 (G3), INPARI 22 x IR83140-B-11-B (G4), Bio-R81 x O18b-1 (G5), Bio-R82-2 x O18b-1 (G6). Media for callus induction was based on N6 medium + 2.0 mg L-1 NAA + 0.5 mg L-1 kinetin + 1.0 mM putresin + 60 g L-1 sucrosa, media for regeneration was based on MS + 0.5 mg L-1 NAA + 2.0 mg L-1 kinetin + 1.0 mM putresin, and media for rooting was based on MS + 0.5 mg L-1 IBA + 30 g L-1 sucrosa. The result indicated that all six F1 had different ability in anther culture. Bio-R82-2 x O18-b1 (G6) and Bio-R81 x O18-b1 (G5) F1 genotype had good response both of callus induction and plant regeneration. These two F1 genotypes also gave the highest ratio of green planlet production to number of anther inoculated (GP:AI) were 5.50% and 4.65%, respectively. In this research, there were identified doubled haploid plants were developed from 4 F1 derived cross namely G2 (2 plants), G3 (4 plants), G5 (21 plants), and G6 (26 plants)