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Pelita - Jurnal Penelitian Mahasiswa UNY
Published by Universitas Negeri Yogyakarta
ISSN : 18584446     EISSN : -     DOI : -
Core Subject : Science,
Decision Sciences, Operations Research & Management
Arjuna Subject : -
Articles 176 Documents
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PEMANFAATAN LIMBAH AMPAS TEBU (BAGASSE) UNTUK PRODUKSI BIOETANOL MELALUI PROSES SAKARIFIKASI DAN FERMENTASI SERENTAK Candra Daty Novitasari, Astri Ani, Rigandita Ekawati
Pelita - Jurnal Penelitian Mahasiswa UNY Volume VII, Nomor 2, Agustus 2012
Publisher : Pelita - Jurnal Penelitian Mahasiswa UNY

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Abstract

The aim of this research is to describe the process of bio ethanol production frombagasse with simultaneous sacharification and fermentation.The subject of this research was bagasse. The object of research was the amount of bioethanol from fermentation of bagasse using Sacharomyces cerevisiae. The independentvariable in this research was the concentration of yeast in the fermentation. There were0.4%; 0.6%; and 0.8% of solution weight. The chemistry analysis in the research was aquantitative and qualitative analysis of ethanol using Micro Conway Diffusion and spectronic20.The results showed the yeast concentration of 0.4% by weight solution of the hydrolysis,ethanol result was 24.555%. In the yeast concentration of 0.6% by weight of hydrolysissolution, the ethanol content was 39.571%. In the yeast concentration of 0.8% by weight ofhydrolysis solution, 35.005% of ethanol was obtained. It was the highest level of ethanol onyeast concentration of 0.6% by weight solution of the hydrolysis.Keywords: bagasse, bio ethanol, fermentation, yeast, sacharification
ANALISIS KARAKTERISTIK ANTIOKSIDAN DALAM MISTER KUMIS: MINUMAN INSTAN SERBUK KULIT MANGGIS ( Gar c inia mangostana L) Dwi Prihastuti, Ainun Afif, Laela Mukaro Nenny Widiani
Pelita - Jurnal Penelitian Mahasiswa UNY Volume VII, Nomor 2, Agustus 2012
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Abstract

This research is aimed at finding out the antioxidant contents in instant drinkingpowder of mangosteen (Garcinia mangostana L) peel and finding out its preference level  as antioxidant source.  The method used in this research consisted of five steps, namely 1) makinginstant drinking powder of mangosteen peel (Garcinia mangostana L), 2) antioxidantcontent testing, 3) water content testing, 4) sugar content testing, 5) organoleptictesting.  The result of the research on the antioxidant content of sample instantmangosteen peel drinking powder repeated twice   with the average of 80 g of peel masswas 27.8350%, with the average 100 g of peel mass is 29.1237%, and with 120 g of peelmass was 31.7859%. Based on the result of organoleptic testing, most of therespondents preferred the sample with 120 g of the peel in terms of   the taste, color,texture, and aroma.  Keyword: mangosteen peel, antioxidant, drinking powder
PENGARUH TEPUNG JAMUR TIRAM (PLEUROTUS OSTREATUS) TERHADAP PENURUNAN GLUKOSA DARAH MENCIT (MUS MUSCULUS) Eky Rakhmawati, Rina Vitdiawati, Sri Wijayanti Wijayanti
Pelita - Jurnal Penelitian Mahasiswa UNY Volume VII, Nomor 2, Agustus 2012
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Abstract

The research is aimed at finding whether tiram mushroom powder can decrease thedegree of glucose content and also finding the most effective concentration of tirammushroom powder which can decrease the degree of glucose content in the blood stream ofrat (Mus musculus).This research used rats as the trial unit and tiram mushroom powder as the additivesubstance. The method used was Aloxan Method. Five mg/ml of aloxan was given forcibly toincrease the glucose content in the blood stream. There were 5 (five) cages with 8 (eight)rats each, which means there were 5 (five) treatments. The first cage is the control group (K)as a placebo, the second cage (P1) is for the first treatment with 5% of tiram mushroompowder, the third cage (P3) is for the second treatment with 10% of tiram mushroom powder,the fourth cage (P3) is for the third treatment with 15% of tiram mushroom powder, and thefifth cage (P4) is for the fourth treatment with 20% of tiram mushroom powder. The datawere collected after 24 hours when aloxan was given and on the tenth day of treatment. Thedata were processed with One-way ANNOVA Test to reveal the difference between the controlgroup and treatment groups. When there was a significant difference between the controlgroup and treatment groups, Dunncan Test as an advanced test had to be done to comparethe control group with each of the treatment groups.The results of this research indicated that tiram mushroom powder was capable oflowering the glucose content in the blood stream. One-way ANNOVA showed 0.006 whichwas so far below the error degree (p0.05) which means that the influence of tiram mushroompowder was so significant to decrease the glucose content in the blood stream. DunncanTest indicated no significance between all the treatment groups (p0.05).Keywords : rat (Mus musculus), tiram mushroom (Pleurotus ostreatus), glucose content
GENIUS LEARNING STRATEGY BERBASIS MAGIC FORMULASEBAGAI UPAYA PENINGKATAN HASIL BELAJAR SISWAKELAS V MAPEL MATEMATIKA MATERI BANGUN RUANGDI SD NEGERI KOWANGBINANGUN KALASAN Arman Riyadi, Agustriyaningsih Setiadi, Andarini Permata C.
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

This study is intended to know about the role of Magic Formula-Based GeniusLearning Strategy can improve the output of mathematic learning at SD NegeriKowangbinangun Kalasan.The study employed a quasi-experimental approach. The technique of datacollection was done by participation observation and documentation. The subject of theresearch was the students Grade V at SD Negeri Kowangbinangun, Kalasan.The result of the study shows that the implementation of Magic Formula-BasedGenius Learning Strategy achieved good results, meaning that the students had activerole in the learning process. This strategy could increase and motivate the students tolearn mathematics, specifically geometry or shape. The postest of the second cycleproduced better scores. The students’ average scores was 5. 25 and the average scoresin the posttest of the second cycle was 8.15. The student also became active and thesituation of mathematic class became enjoyable.Keywords : Magic Formula-based Genius Learning Strategy, output of mathematic learning,geometry
METODE SQ3R SEBAGAI UPAYA MENINGKATKANKEMAMPUAN MEMBACA PEMAHAMAN BAHASA INGGRISSISWA KELAS XI IPA SMA ISLAM 3 SLEMAN Annisa Nurul Ilmi, Annida Nurul F. A., dan Fauzan Ibram M.
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

The research is aimed to improve the students’ English reading comprehensionskills of Grade XI IPA at SMA Islam 3 Sleman Yogyakarta.The subjects of the research were 17 students. This research focused on theimplementation of SQ3R method to improve the students’ reading comprehension skills.The research was done in two cycles. Each cycle was divided into four steps, i.e planning,acting, reflecting, and evaluating. The data were collected by observations, field notes,interviews, questionnaires, and documentations. The data were analized usingquantitative and qualitative interpretations. The succeed of the research were achievedbased on some criteria related to the students’ or teacher’s improvement changes.The result of the research shows that the improvement happened on six aspectsthat become reading comprehension criteria, i.e determining main ideas or topic sentence,recognizing detail information, mastering vocabularies and grammar, searching implicitand explicit information in texts. The improvements can be seen through the averagescores in each criterion. The average score in English reading comprehension skillsbefore the action was 27.64. The score in the first action was 33.52 and that in thesecond cycle was 40. It can be concluded that the improvement was 21.27% from pretestto the first cycle, 19.33% from the first cycle to the second cycle and 44.71% frompre-test until the last cycle. The improvement in each criterion was determining mainidea or topic (33.96%), recognizing detail information (68.57%), mastering vocabulary(85.71%), mastering grammar (28.81%), searching implicit information in a text (51.06%),and explicit information (25.53%).Keywords: English Reading Comprehension Skills, Grade XI IPA at SMA Islam 3 SlemanYogyakarta, SQ3R.
MOBILE VIDEO ROBOT BERBASIS PERSONAL COMPUTER (PC) Muslikhin, Rahmat Hidayat, dan Laily Noor Ikhsanto
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

The development of robotics as a branch of electronic disciplines increases along with humanneeds. This condition makes the robotic technology is important to be developed. The research ofStudent Union Grant (SUG) 2009 entitled “Personal Computer (PC) - Based Mobile Video Robot’’aims to (a) build a navigation software of robot motion control, (b) build a hardware for mobile videorobot unit and (c) know how it works.The mobile video robot software was designed by using Visual Basic 6.0 to build navigationon the PC monitor. This navigation was as a user interface between humans and robots. The user’scommand data was issued via the parallel port (DB25). The parallel port data output were put intoAT89S52 and processed based on the algorithm. The result of the process would control TX2B totransmit the data based on the user’s command. The process of a robot hardware productionconsisted of TX2B transmitter unit and robot unit. The robot unit contained the RX2B recipient,AT89S52 data processor, the ULN2004 driver and h bridge, 211C CMOS camera and a UT66 minivideo sender. Meanwhile, the production of TX2B transmitter hardware and the data processor wasthrough the flashing programs written in Assembler language to AT89S52.The result of this research shows that mobile video robot hardware was able to work withnavigation software in a synergy. The software design result of mobile video robot navigationdisplayed on a PC was able to control the robot motion and display the results of the video via aninternal TV tuner. The performance of the mobile video robot could explore the flat road for 32minutes. The maximum robot control range / radius were 8 meters. The optimum video radius wason 5 meters in VHF-H/PAL channel 12, while the average instruction response was 53 ms.Keywords: mobile video robots, PC, AT89S52, and TX2B/RX2.
PENERAPAN ENTREPRENEURSHIP BOOKSEBAGAI MEDIA PEMBELAJARAN UNTUK MENUMBUHKANKECAKAPAN HIDUP (VOKASIONAL) PADA MATA PELAJARANEKONOMI DI SMA N 8 YOGYAKARTA dan Iin Khairunissa, Raras Gistha Rosardi, Chandra Widyadewa,
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

This research focuses on life skills education particularly on vocational skills. Theobjective of this research is to know how the entrepreneurship book can grow the lifeskill of vocational learning.This research is a classroom action research which employed quantitative andqualitative method. The research was conducted in two cycles. The subject of the researchwas the students of Economic subject at Grade XI of Social Class. The sample of thisresearch was thirty students. They were given Entrepreneurship book as learning media.Then, they were assigned to design jobs based on the club; like Academic Club, HandycraftClub, Art Club, Culinary Club, Entertainment Club, and Fashion Club. Each club shouldmake company description, both in group observation sheet and individual observationsheet.The result of the first cycle shows that in individual observation 40% students werein a good category and 60% students in average category. Meanwhile, in groupobservation the average score for every club was 20. The observation was done towardssix clubs. In the evaluation of Cycle 1 it was known that Academic Club got the best pointin essays effort and the supreme score of individual estimation was 97.5 and the scorewas 40. On The cycle 2 in individual observation 76% students were in good categoryand 24% students in enough categories. Meanwhile, for group observation averagely20.4 by ideal score every club was 20. The observation was done toward 6 groups. In theevaluation of Cycle 2, it was known that Academic Club got the best point to essays toknow effort potency. Meanwhile, the individual estimation of supreme score was 98.5and the estimated score was 60. It means that there is an increase from Cycle 1.Key words: Entrepreneurship Book, life skills, vocational
UPAYA MENINGKATKAN MOTIVASI BELAJARPADA PEMBELAJARAN LOMPAT TINGGI GAYA STRADDLESISWA KELAS VIII C SMPN 4 DEPOK TAHUN AJARAN 2009/2010DENGAN METODE MENGAJAR INKLUSI Muhammad Arief Wibowo dan Bangkit Seandi Taroreh
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

This research is aimed to increase the students’ extrinsic and intrinsic learningmotivation on the high jump material of straddle style using the inclusion teachingmethod. The use of this method involves some tasks adapted to the students’ ability.This research is a classroom action research. The subject of the research was thestudents Grade VIII C at SMP N 4 Depok, Sleman, Yogyakarta. Cycle 1 was done in twomeetings, involving planning, implementation actions, reflection and observation. Thetechnique of collecting the data was observation and interview. The data were analyzedby using descriptive analysis and reported in the form of table and diagram.The result of the research shows that the students’ intrinsic and extrinsic learningmotivation increased. It can be seen through the observation of the early condition andCycle I. The intrinsic motivation covers the interest aspect, relevance aspect, confidenceaspect, and satisfaction aspect. The interest aspect increased from 41.43% (rather good)to 68.57% (good). The aspect of relevance increased from 77.43% (good) to 100% (verygood). The aspect of confidence increased from 77.14% (good) to 81.43% (good). Theaspect of satisfaction increased form 45.71% (not good) to 80% (good). Meanwhile, theextrinsic motivation covering material aspect, environmental aspect, infrastructureaspect, and teacher aspect increased. The material aspect increased from 30.29% (verypoor) to 57.14% (rather good). The environmental aspect increased from 65.71% (prettygood) to 93.33% (very good). The infrastructure aspect increased from 78.57% (good) to81.43% (good) while the teacher aspect increased from 75.71% (good) to 78.57% (good).Keywords: Learning motivation, Inclusion teaching methods, High jump of straddle style
MUSIK SEBAGAI MEDIA PEMBELAJARAN IPSKELAS V SD MUHAMMADIYAH KALAKIJO Abiy Rimabethe, Isdiyono, dan listiana Windiyawati
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

Social sciences are the field of disciplines exploring phenomenon, fact and draft insocial issues. However, many students have problems in understanding them. One of theproblems is because the teaching method is mainly concerned with memorizing. SDMuhammadiyah Kalakijo is one of the schools having this problem. The students’ scoreswere under the minimum mastery criteria. Music is considered as media that can beused to solve this problem.This classroom action research employed Kemmis and Taggart’s Model anddescriptive-qualitative method. The process of this research was monitored using testand observation technique. The subject of this research was the students Grade V at SDMuhammadiyah Kalakijo.The result of the research shows that music can be used to increase the scores ofcognitive, affective, and psychomotor aspect. The score before the treatment was 41.8,7.31 in the first cycle and 77.2 in the second cycle. Meanwhile, affective and psychomotoraspect increase from 50% for high, 33% for medium and 17% for low to 73% for high, 18%for medium and 9% for low in the second cycle.Key words: music, learning media, social science, Grade V SD Muhammadiyah Kalakijo
EMOTIONAL BOARD DICIPTAUNTUK MENGENALI EMOSI SISWA Linda Wahyu S., Eko Triono, dan Muhammad Ibrahim
Pelita - Jurnal Penelitian Mahasiswa UNY Volume IV, Nomor 2, Agustus 2009
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Abstract

This research aims to know 1) to what extent Emotional Board can help the teachersidentify and map the students’ emotion and 2) the use of this board to improve thestudents’ interest in learning Bahasa Indonesia at Grade VII D of MTS Negeri SumberAgung.This research was classified as research and development. The subjects of thisresearch were the teachers of Bahasa Indonesia and the students Grade VIID at MTSNSumber Agung. The techniques of the data collection were interviews, questionnaire,and observation. The data were analyzed using qualitative description.The result of the research shows that Emotional Board could be used by the teachersin mapping the emotional state, as a reference to take the appropriate steps in positiveemotional learning process, and to determine whether the learning situation is fun forthe students or not. Furthermore, Emotional Board shows significant difference whenapplied in learning activity. The students’ emotion fluctuation could lead the teachers tocreate more interesting learning.Keywords: Emotional Board, Mapping Emotion, interesting learning

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