1,721,321 research outputs found
Formulasi Insektisida Nabati dari Ekstrak Tembakau, Serai, dan Bawang Putih
Get PDFIndah Mutiara Ardianti, Winda Kumala Devi. 2018. Laporan Tugas Akhir “Formulasi Insektisida Nabati dari Ekstrak Tembakau, Serai, dan Bawang Putih” Program Studi Diploma III Teknik Kimia, Fakultas Teknik Universitas Sebelas Maret Surakarta. Banyak insektisida sintetik yang beredar di pasaran telah digunakan untuk membunuh larva atau nyamuk dewasa, namun senyawa kimia didalamnya dapat menimbulkan resistensi nyamuk terhadap insektsida sintetik akibat penggunaan yang salah serta menimbulkan residu karena insektisida kimia bersifat undegradable. Sudah saatnya bagi masyarakat untuk beralih ke insektisida nabati karena lebih aman digunakan dalam jangka panjang sebab tanpa ada efek negatif dan yang paling penting insektisida nabati bersifat degradable. Negara Indonesia merupakan negara tropis yang memiliki berbagai jenis tumbuhan yang belum banyak dimanfaatkan, seperti tanaman tembakau, serai, serta bawang putih yang dapat digunakan sebagai bahan insektisida nabati ataupun sebagai penolak nyamuk. Kandungan alkaloid nikotin yang terdapat di daun tembakau dapat digunakan sebagai insektisida. Minyak serai wangi atau minyak sitronela dapat digunakan sebagai pengusir serangga, termasuk nyamuk. Aroma allisin yang tajam (aroma khas bawang putih) tidak disukai serangga (bersifat repellant), karena akan mengacaukan sistem komunikasi serangga. Tujuan pembuatan tugas akhir ini yaitu memperoleh formulasi insektisida nabati yang efektif untuk mengusir nyamuk Cullex sp dari kombinasi ekstrak tembakau, bawang putih, dan serai dengan menggunakan metode elektrik cair. Proses pembuatan ekstrak dilakukan dengan cara mencampur tembakau, serai, dan bawang putih ke dalam 150 gram aquades. Kemudian ekstraksi dengan cara dipanaskan dengan suhu 45-50oC selama 20 menit disertai pengadukan. Hasil ekstrak kemudian ditambahkan propylene glycole 4% sebagai pengawet dan diaduk selama 5 menit. Ekstrak dibuat dengan berbagai konsentrasi. Ekstrak yang telah didapatkan selanjutnya akan diuji efektivitasnya terdapat nyamuk Cullex sp dengan menggunakan metode glass chamber serta diuji kandungan fitokimianya yaitu uji flavonoid dan uji nikotin. Hasil formulasi insektisida nabati yang memiliki efektivitas tertinggi adalah F1 dengan komposisi 4,5 gram tembakau, 75 gram serai, dan 1,5 gram bawang putih yang memiliki persentase kematian nyamuk Cullex sp tertinggi sebesar 45%. Hasil analisa uji nikotin menunjukkan bahwa insektisida nabati ini aman digunakan karena memiliki kadar nikotin sangat sedikit yaitu kurang dari 0,12%. Biaya yang dikeluarkan untuk modal pendirian usaha sebesar Rp 11.751.000 dan biaya produksi sebesar Rp 127.681,18 dengan rincian direct manufacturing cost sebesar Rp 124.611,74 dan fixed manufacturing cost sebesar Rp 3.069,44. Keuntungan sebelum pajak yang didapat sebesar Rp 1.446.376,31/bulan dan keuntungan setelah pajak sebesar Rp 1.301.738,68/bulan
HUBUNGAN ANTARA KONSEP DIRI DENGAN PENYESUAIAN DIRI PADA SISWA KELAS XII SMK TUNAS MARKATIN
Get PDFVERONIKA INDAH MUTIARA. CORRELATION BETWEEN SELF
CONCEPT WITH SELF-ADJUSTMENT STUDENT CLASS XIII IN
VOCATIONAL HIGH SCHOOL TUNAS MARKATIN. Thesis. Jakarta: Study
Program of Economic Education, Faculty of Economy, State University of
Jakarta, February of 2020.
This study aims to determine the relationship between Self-Concept With
Self-Adjustment Student Class XII In Vocational High School Tunas Markatin
which was conducted for 3 months starting form December of 2019 until February
of 2020. The method that used in this study is the survey method with a
correlational approach. The population in this study was 303 students, and the
accesible population was 119 students. The sample was taken based on
Proportional Random Sampling technique which was 89 students. Self
Adjusment’s data (Y variable) and Self Concept’s data (X variable) is a primary
data was obtained from the results of questionnaires using the Likert Scale.
The data analysis technique in this study was processed using Microsoft
Excel of 2010, which was started by looking for a regression equation that Ŷ =
51,81 + 0,633X. The results of calculations using Liliefors test are normal which
known from Ltest X 0.054 and Y 0.039069 < Ltable 0,094, it means that data are
normally distributed. Regression linearity test is linear which known for Ftest 1,09
< Ftabel 1,65, then Ho is accepted. Product Moment regression significance test
results was obtained r value of 0,728, it means if r value > rtable 0.207 then, there is
a positive relationship between self concept and self adjusment. The results of the
coefficient determination test was obtained results of 52,99%, it means that self
concepts provide meaningful support in determining self-adjustment.
Keywords: Self Concept, Self Adjustmen
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
RANCANGAN PEMBELAJARAN BERBASIS METODE BERMAIN UNTUK MENINGKATKAN KREATIVITAS SISWA KELAS II SEKOLAH DASAR DALAM MATA PELAJARAN SBDP (SENI TARI)
Get PDFPenelitian ini dilatarbelakangi oleh rendahnya kreativitas siswa kelas II sekolah dasar dalam mata pelajaran SBdP (seni tari), yang disebabkan oleh rancangan pembelajaran yang belum memunculkan langkah-langkah yang dapat meningkatkan kreativitas siswa dalam mata pelajaran SBdP (seni tari). Maka peneliti membuat rancangan pembelajaran berbasis metode bermain untuk meningkatkan kreativitas siswa dalam pembelajaran SBdP (seni tari). Tujuan penelitian ini adalah mendeskripsikan kegiatan pendahuluan, inti dan penutup pembelajaran berbasis metode bermain untuk meningkatkan kreativitas siswa kelas II SD dalam mata pelajaran SBdP (seni tari). Penelitian ini menggunakan metode penelitian Delphi yang terdiri dari 4 tahap, yaitu tahap studi pendahuluan, tahap rancangan, tahap verifikasi, dan tahap analisis. Proses validasi oleh validator pertama dilakukan selama tiga putaran, oleh validator kedua dan ketiga selama dua putaran. Hasil penelitian ini adalah kegiatan pendahuluan meliputi kegiatan menciptakan kondisi awal dan apersepsi agar siswa siap, nyaman, bersemangat dan antusias mengikuti pembelajaran, sehingga proses pengembangan kreativitas dalam pembelajaran SBdP (seni tari) akan maksimal. Langkah-langkah kegiatan tersebut diantaranya menyapa dan menjawab pertanyaan mengenai kabar, siswa dikondisikan untuk siap belajar, berdoa bersama, siswa diperiksa kehadirannya, mendengarkan dan menjawab pertanyaan berkaitan dengan pembelajaran sebeluumnya, menyimak penjelasan mengenai kompetensi dan tujuan pembelajaran, siswa diberi motivasi dan stimulus berupa alat dan media yang akan digunakan dalam pembelajaran SBdP (seni tari). Kegiatan inti meliputi langkah-langkah kegiatan permainan yang meningkatkan kreativitas siswa dalam mata pelajaran SBdP (seni tari). Langkah-langkah kegiatan tersebut diantaranya siswa diberi waktu untuk memikirkan salah satu gerak kijang, siswa yang terakhir memegang bola harus memeragkan gerak keseharian kijang dalam hitungan 1x8 dan siswa yang lain menebak makna gerakan yang dilakukan, yang mendapat bola selanjutnya tidak boleh mengulangi gerak keseharian kijang yang sudah dilakukan oleh siswa sebelumnya, mengikuti gerak kijang yang sudah diperagakan oleh siswa lain secara berurutan. Kegiatan penutup terdiri dari 4 langkah yang meliputi kegiatan menyimpulkan, refleksi dan umpan balik (menyampaikan kesulitan dan manfaat dari permainan yang dilakukan), tindak lanjut dan menyampaikan kegiatan pembelajaran selanjutnya.
Kata kunci : Rancangan pembelajaran, metode bermain, kreativitas tari
ABSTRACT
LEARNING DESIGN BASED ON PLAYING METHODS
TO IMPROVE THE CREATIVITY OF CLASS II
ELEMENTARY SCHOOL STUDENTS IN SBDP (DANCE) SUBJECTS
Indah Mutiara Asih
1600368
This research was motivated by the low creativity of grade II elementary school students in the SBdP (dance) subject, which was caused by the learning design that had not yet emerged steps that could increase student creativity in the SBdP (dance) subject. So the researcher made a learning design based on the playing method to increase student creativity in learning SBdP (dance). The purpose of this study was to describe the preliminary, core and closing activities of play-based learning to increase the creativity of grade II elementary school students in SBdP (dance) subjects. This research uses the Delphi research method which consists of 4 stages, namely the preliminary study stage, the design stage, the verification stage, and the analysis stage. The validation process by the first validator is carried out for three rounds, by the second and third validators for two rounds. The results of this research are preliminary activities including activities to create initial conditions and perceptions so that students are ready, comfortable, excited and enthusiastic about participating in learning, so that the process of developing creativity in learning SBdP (dance) will be maximized. The steps for these activities include greeting and answering questions about the news, students are conditioned to be ready to learn, pray together, students are checked for attendance, listen to and answer questions related to previous learning, listen to explanations about competencies and learning objectives, students are given motivation and stimulus in the form of tools and the media that will be used in learning SBdP (dance). The core activity includes the steps of game activities that increase students' creativity in SBdP (dance) subjects. The steps of this activity include students being given time to think about one of the deer movements, the student who lastly holds the ball must demonstrate the daily movements of the deer in a count of 1x8 and the other students guess the meaning of the movement being carried out, the one who gets the ball then cannot repeat the daily movements of the deer. the students had done before, following the movement of the deer that had been demonstrated by other students in sequence. The closing activity consists of 4 steps which include concluding, reflection and feedback (conveying the difficulties and benefits of the games being carried out), follow-up and conveying further learning activities.
Keywords : Learning design, playing methods, dance creativity
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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