1,720,971 research outputs found
HUBUNGAN MEKANISME KOPING DENGAN PERKEMBANGAN SOSIAL EMOSIONAL PADA REMAJA DI SMA N I NGAGLIK SLEMAN YOGYAKARTA
Full text linkLatar Belakang: Remaja adalah masa peralihan dari masa kanak-kanak menuju masa
dewasa yang memerlukan penyesuaian terhadap perubahan yang terjadi dalam
dirinya. Ketidakberhasilan remaja dalam perkembangan sosial emosional akan
membuat kurangnya kepekaan terhadap lingkungan,adaptasi dengan teman sehingga
timbul ketegangan yang bisa mengakibatkan perilaku pemecahan masalah
(mekanisme koping).
Tujuan : Mengetahui hubungan antara mekanisme koping dengan kemampuan
perkembangan sosial emosional pada remaja di SMA N I Ngaglik Sleman
Yogyakarta.
Metode Penelitian : Desain penelitian menggunakan pendekatan diskriptif korelasi
dengan desain penelitian cross sectional. Populasi siswa kelas XI SMA N I Ngaglik
Sleman Yogyakarta dengan tehnik pengambilan sampel cluster random sampling,
dengan jumlah sampel 128 siswa. Pengumpulan data dengan menggunakan kuisioner
perkembangan sosial emosional dan kuisioner mekanisme koping. Uji statistik
bivariat yang digunakan adalan uji chi square.
Hasil Penelitian : Mayoritas responden adalah perempuan yaitu 89 siswa (69,5%).
Mekanisme koping mayoritas dalam kategori emotion focused coping yaitu 69,5%
dan perkembangan sosial emosional cukup yaitu 91,7%. Analisis uji korelasi
diperoleh p-value 0,317.
Kesimpulan : Tidak ada hubungan antara mekanisme koping dengan perkembangan
sosial emosional pada remaja di SMA N I Ngaglik Sleman Yogyakarta.
Kata kunci : Mekanisme koping, Perkembangan sosial emosional, Remaj
Uji Aktivitas Antibakteri dan Sitotoksik Ekstrak Metanol Aglaia silvestris (M.Roemer) Merr.
Full text linkThe antibacterial and sitotoxic activities of ganggo (Aglaia silvestris (M.Roemer) Merr. methanol extract were determined in this study. Antibacterial in-vitro test of ganggo methanol extract was exposed to Gram positive (Staphylococcus aureus ATCC 25923, Streptococcus agalactiae ATCC 8190, and Streptococcus sp.) and Gram negative (Salmonella typhii NCTC 786 E, Eschericia coli ATCC 25922, and Pseudomonas pseudomallei ATCC 15682) bacteria. The extract concentrations were 50, 25 and 12.5%, and done in triplicate. The growth inhibition area of extract was compared to those of standard antibiotic (10 unit ampicilin). Cytotoxic test of ganggo extract was done utilizing Brine Shrimp Lethality Test (BST) with Artemia salina.The result showed that growth inhibition area of 12.5% ganggo methanol extract to P. pseudomallei (19 mm) was wider than that of 10 unit ampicilin (0 mm). It showed that P. pseudomallei was sensitive to ganggo methanol extract. The result of BST showed that LC50 of ganggo extract was 345.44 ppm. It was concluded that ganggo methanol extract had antibacterial effects on some bacteria isolates and had cytotoxic effects with LC50 345.44 ppm
EFEKTIVITAS METODE KOOPERATIF TIPE GI DAN STAD DITINJAU DARI KEMAMPUAN AWAL
Full text linkPenelitian ini bertujuan untuk mengetahui: 1) Perbedaan penggunaanmetode pembelajaran kooperatif tipe GI dan STAD terhadap prestasibelajar fisika. 2) Perbedaan kemampuan awal tinggi dan kemampuanawal rendah terhadap prestasi belajar fisika. 3) Interaksi antarametode pembelajaran dan kemampuan awal siswa terhadap prestasibelajar fisika. Jenis penelitian ini adalah eksperimen. Populasi dalampenelitian ini adalah semua siswa SMPN 1 Barat. Sebagai sampeldiambil dua kelas sebanyak 68 siswa yang kemudian dijadikan kelaseksperimen I dan kelas eksperimen II. Kelas VIIIB sebanyak 34 siswasebagai kelas eksperimen I diberikan pendekatan menggunakanmetode pembelajaran kooperatif tipe GI sedangkan kelas VIIIDsebanyak 34 siswa sebagai kelas eksperimen II diberikan pendekatanmenggunakan metode pembelajaran kooperatif tipe STAD denganteknik pengambilan sampel cluster random sampling. Teknik analisisdata yang digunakan adalah analisis variansi (anova) dua jalan.Hasilpenelitian dengan ?Ä?? = 5% dapat disimpulkan bahwa: (1) Metodekooperatif tipe GI lebih baik daripada metode kooperatif tipe STADdengan Fhitung = 92,77. (2) Siswa dengan kemampuan awal tinggimempunyai prestasi belajar fisika yang lebih baik dibandingkandengan siswa yang mempunyai kemampuan awal rendah dengan Fhitung = 4,199. (3) Ada interaksi antara metode pembelajaran dankemampuan awal siswa terhadap prestasi belajar fisika (F hitung =5,16), metode GI dan STAD cenderung berinteraksi pada kemampuanawal rendah.Kata kunci : Metode GI, STAD, Kemampuan Awal, Prestasi Belajar</jats:p
Aktivitas Antibakteri Ekstrak Metanol Buah Mbosi (Dysoxylum gaudichandianum (A.Juss) Miq.) dan Penapisan Senyawa Kimianya
Full text linkMbosi (Dysoxylum gaudichandianum (A.Juss) Miq.) belongs to Meliaceae family, Its potential bioactivity had not been known although the other plants from the same family had been known as natural insectiside or medicinal plants. Phytochemical screening showed that mbosi fruit contained fat, fatty acid, sterol, triterpenoide, tannin, peroxide sugar, alkaloid, steroid glycoside and flavonoid. Identification of mbosi fruit chemical compounds by GC-MS showed that it contained 16 compounds. Compounds with the concentration more than 5 % were butyl cellosolve (11.1%), erythritol (8.48%), glycerol (10.32%), hexadecanioc acid palmitinic ester (16.2%), oleic acid (65.3%) and ethyl oleat (6.2%). In-vitro antibacterial test on innoculated Mueller Hinton Agar to seven bacteria isolates (Salmonella typhimurium, S. typhii, Eschechiria coli ATCC 25923, Pseudomonas sp., Staphylococcus aureus ATCC 25922, S. epidermidis, and Bacilus subtilis) showed that 20% methanol extract inhibit only the growth of Staphylococcus aureus
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Manfaat Buah Kurma
Full text linkBenefits of DatesBackground: Sweetener is always related to its cariogenecity. White sugar is the most cariogenic sweetener, while date rich of natural sucrose and fructose. Date tannin and magnesium have anti infection and anti inflammation properties. The analytical laboratoric study using experimental design wanted to know the differencies between saliva pH after consumptions of sucrose, fructose, and date. The study was executed in Faculty of Dentistry and Integrated Laboratory of Muhammadiyah University in Semarang, 2016.Methods: Sample of study was 18 students of the Faculty having caries ≤ 2. Initial pH saliva was measured after ½ hour fasting, followed by tap water rinsing, consumptions of 1 g sucrose, 1 g fructose, and a date. Result: T dependent test, and one way Anova were used. Mean of saliva pH and SD were found consecutively as follows, initial 6.92; 0.217; tap water rinsing 6.91; 0.151, sucrose consumption 6.83; 0.229, fructose 6.90; 0.156, and date 7.04; 0.086. No significant difference between initial pH and after tap water rinsing. There was significant difference between saliva pH after sucrose, fructose, and date consumptions (p value 0.002; p < 0.05).Conclusion: Saliva pH after consumptions of sucrose and fructosa were lower than date; sucrose and fructose were more acidic and cariogenious than date
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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