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All Journal Media Statistika Jurnal Elektronik Pendidikan Matematika Tadulako JTAM (Jurnal Teori dan Aplikasi Matematika) Jurnal Keperawatan Muhammadiyah Jurnal Ilmiah Dinamika Sosial GAUSS: Jurnal Pendidikan Matematika Jurnal Ilmiah Wahana Pendidikan Health Idea
AYU ASTUTI, AYU
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Religion Decision Sciences, Operations Research & Management Dentistry Education Electrical & Electronics Engineering Health Professions Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE NHT (NUMBERED HEADS TOGETHER) UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI ARITMATIKA SOSIAL DI KELAS VIIA SMPN 4 SIGI Astuti, Ayu; Tandiayuk, Marinus Barra; Karniman, Tegoeh S
Jurnal Elektronik Pendidikan Matematika Tadulako Vol 6, No 3 (2019)
Publisher : Jurnal Elektronik Pendidikan Matematika Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.17 KB)

Abstract

Abstrak: Tujuan penelitian ini adalah untuk memperoleh deskripsi penerapan model pembelajaran kooperatif tipe Numbered Heads Together (NHT) pada materi aritmatika sosial di kelas VIIA SMP N 4 Sigi. Jenis penelitian ini adalah penelitian tindakan kelas (PTK). Rancangan penelitian ini mengacu pada model Kemmis dan Mc. Taggart yang terdiri atas empat komponen, yaitu 1) perencanaan, 2) pelaksanaan tindakan, 3) observasi dan 4) refleksi. Subjek penelitian ini adalah siswa kelas VIIA SMPN 4 Sigi yang berjumlah 32 siswa. Penelitian dilakukan dalam dua siklus. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran kooperatif tipe NHT dapat meningkatkan hasil belajar siswa kelas VIIA SMPN 4 Sigi dengan menerapkan fase-fase yaitu: 1) penyampaian tujuan dan pemberian motivasi, 2) penyajian informasi, 3) penomoran, 4) pengajuan pertanyaan, 5) berpikir bersama, 6) pemberian jawaban atau evaluasi dan 7) pemberian penghargaan pada materi aritmatika sosial. Kata kunci: numbered heads together, hasil belajar, aritmatika sosial.
Penerapan Pembelajaran Berbasis Masalah untuk Meningkatkan Kemampuan Berpikir Kritis Matematika Siswa Astuti, Ayu; Fitriyani, Harina
GAUSS: Jurnal Pendidikan Matematika Vol 1, No 2 (2018)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (86.625 KB) | DOI: 10.30656/gauss.v1i2.691

Abstract

Penelitian ini adalah penelitian tindakan kelas dengan subjek siswa kelas X Lukis 1 SMK N 3 Kasihan Bantul tahun ajaran 2017/2018.  Penelitian ini dilakukan dalam dua siklus dan setiap siklus terdiri atas dua pertemuan. Instrumen yang digunakan dalam penelitian ini adalah pedoman observasi dan tes. Pengumpulan data dilakukan dengan cara observasi dan tes. Hasil penelitian menunjukkan bahwa kemampuan berpikir kritis siswa kelas X Lukis 1 SMK N 3 Kasihan Bantul tahun ajaran 2017/2018 mengalami peningkatan dari siklus I ke siklus II setelah dilaksanakan pembelajaran berbasis masalah. Peningkatan kemampuan berpikir kritis ditunjukkan oleh peningkatan setiap aspek kemampuan berpikir kritis serta nilai rata-rata kelas. Aspek memberi penjelasan sederhana yang dimiliki oleh siswa adalah 73,33% (sedang)   menjadi 90,00% (sangat tinggi), aspek membangun kemampuan dasar yang dimiliki oleh siswa adalah 47,73% (sangat rendah) menjadi 63,33% (sedang), aspek memberi penjelasan lanjut yang dimiliki oleh siswa adalah 62,00% (rendah)   menjadi 72,00%  (sedang), aspek strategi dan taktik yang dimiliki oleh siswa adalah 67,33% (sedang)   menjadi 86,00% (tinggi) dan aspek menyimpulkan yang dimiliki oleh siswa adalah 62,00% (rendah) menjadi 68,00% (sedang) pada kondisi akhir. Sedangkan untuk nilai rata-rata kelas dari kondisi awal adalah 62,48% (rendah) menjadi 77,07% (sedang) pada kondisi akhir. Kata kunci: Peningkatan, Pembelajaran Berbasis Masalah, Berpikir Kritis
Systematic Review: Perbandingan Lidah Buaya Dan Daun Kersen Dalam Menurunkan Kadar Gula Darah Penderita Diabetes Melitus Nurmalasari; Sopiah, Popi; Astuti, Ayu
Jurnal Keperawatan Muhammadiyah Vol 9 No 3 (2024): JURNAL KEPERAWATAN MUHAMMADIYAH
Publisher : UNIVERSITAS MUHAMMADIYAH SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/jkm.v9i3.22557

Abstract

Objective: Diabetes mellitus is a disease caused by the body's inability to produce insulin or decreased insulin production. This disease can reduce the quality of life and even death. Alternative medicine is an option for treating increased blood sugar levels in diabetes mellitus sufferers because it is considered cheap, easy and has few side effects. One of them is using aloe vera and cherry leaves. The aim of this research is to determine the comparison of aloe vera and cherry leaves in reducing blood sugar levels in diabetes sufferers through a literature study. Methods: The method used in this research is a systematic review by identifying and evaluating articles and journals via the Google Scholar, Pubmed and Semantic Scholar websites that were published from 2019 to 2024 using the keywords "Aloe Vera, Kersen Leaves and Diabetes Mellitus" and have open access and not a duplicate article. Results: After going through a feasibility test with JBI critical appraisal, 10 articles out of 2,051 were obtained, the results showed that the aloe vera plant and cherry leaves both had an effect on reducing blood sugar levels in people with type II diabetes mellitus, although with different percentages. Conclusion: Reducing blood sugar levels by cherry leaves is more effective than aloe vera where the reduction is much higher with a reduction value of >40%
Peningkatan Keterampilan Menulis Teks Deskripsi Melalui Pendekatan Culturally Responsive Teacing (CRT) Berbantuan Media Bermain Ular Tangga Pada Siswa Kelas VII.6 Smp Negeri 10 Palembang Astuti, Ayu; Fitriani, Yessi
Jurnal Ilmiah Wahana Pendidikan Vol 11 No 5.B (2025): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

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Abstract

Penelitian ini bertujuan untuk meningkatkan keterampilan menulis teks deskripsi pada siswa kelas VII.6 SMP Negeri 10 Palembang melalui penerapan pendekatan Culturally Responsive Teaching (CRT) dengan bantuan media bermain ular tangga. Pendekatan CRT dipilih karena mampu mengakomodasi keragaman budaya siswa, sehingga dapat menciptakan lingkungan belajar yang lebih inklusif dan relevan bagi siswa. Media ular tangga digunakan sebagai alat bantu pembelajaran untuk membuat proses belajar lebih menarik dan interaktif. Penelitian ini menggunakan metode Penelitian Tindakan Kelas (PTK) yang dilakukan dalam dua siklus, masing-masing terdiri dari tahap perencanaan, pelaksanaan tindakan, observasi, dan refleksi. Hasil penelitian menunjukkan peningkatan yang signifikan dalam keterampilan menulis teks deskripsi siswa, terutama dalam aspek pengembangan ide, struktur teks, dan penggunaan bahasa yang efektif. Siswa juga menunjukkan peningkatan motivasi dan partisipasi dalam pembelajaran menulis. Berdasarkan temuan tersebut, pendekatan CRT dengan media bermain ular tangga terbukti efektif dalam meningkatkan keterampilan menulis teks deskripsi pada siswa kelas VII.
Hubungan Sikap Siswa dengan Perilaku Penerapan Memakai Masker, Mencuci Tangan, Menjaga Jarak, Menjauhi Kerumunan, dan Mengurangi Mobilisasi dalam Pencegahan Penularan Covid-19 Atira, Atira; Astuti, Ayu; Dianto, Dianto
Health Idea Vol 1, No 1 (2023): April 2023
Publisher : Ide Insan Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63860/hi1103

Abstract

ABSTRACT Covid-19 in West Java ranks second in Indonesia with 709,602 cases, of which 693,921 cases recovered, and 14,761 died. In Cimahi City there were 13218 positive cases, 12820 recovered cases, and 239 dead cases. One of the triggers for the Covid-19 incident was due to a lack of implementing 5M behavior (wearing masks, washing hands, keeping distance, staying away from crowds, and reducing mobilization) in prevention transmission of Covid-19. Attitude is thought to be one of the determining factors in the behavior of implementing 5M. The purpose of this study was to determine the relationship between attitude and behavior in implementing 5M in preventing the transmission of Covid-19 at MTs (Madrasah and Tsyanawiyah) Pasundan Cimahi. The research method uses cross sectional analytic surveys. The sample size in this study was 73 respondents using the Total Sampling Technique. Data collection using a questionnaire. The results of the study were analyzed univariately and bivariately with the Chi-Square test. From 73 respondents, 64.4% of the respondents got a "positive" attitude and the highest 5M implementation behavior was in the "bad" category, namely 50.7% of the respondents. Based on the bivariate analysis of data, the highest was 47 (64.4%) of respondents who were "positive" and those who behaved "badly" were 37 (50.7%) of respondents. The results of the Chi-Square analysis obtained a p value of 0.000 ≥ 0.05. The results of the study show that there is a significant relationship between the attitudes of respondents and the behavior of implementing 5M (p value of 0.000 ≥ α (0.05) then Ho is rejected or Ha is accepted. Suggestion: health facilities are needed in schools related to the behavior of implementing 5M in schools, so that students avoid the incident of Covid-19.Keywords: covid-19; attitude; behavior of implementing 5M ABSTRAK Covid-19 di Jawa Barat menempati urutan kedua di Indonesia sebanyak 709.602 kasus, diantaranya 693.921 kasus sembuh, dan 14.761 meninggal dunia. Di Kota Cimahi terdapat 13218 kasus positif, kasus sembuh 12820, dan kasus meninggal 239. Salah satu pemicu kejadian Covid-19 tersebut adalah karena kurangnya perilaku penerapan 5M (memakai masker, mencuci tangan, menjaga jarak, menjauhi kerumunan, dan mengurangi mobilisasi) dalam pencegahan penularan Covid-19. Sikap diduga merupakan salah satu faktor penentu dalam perilaku penerapan 5M. Tujuan penelitian ini adalah untuk mengetahui hubungan sikap dengan perilaku penerapan 5M dalam pencegahan penularan Covid-19 di MTs (Madrasah dan Tsyanawiyah) Pasundan Cimahi. Metode penelitian menggunakan survei analitik Cross Sectional. Besaran sampel pada penelitian ini sebanyak 73 responden dengan Teknik Total Sampling. Pengumpulan data menggunakan kuisioner. Hasil penelitian dianalisis secara univariat dan bivariat dengan uji Chi-Square. Sebanyak 73 responden, didapatkan gambaran sikap “Positif” 64,4% responden dan perilaku penerapan 5M yang tertinggi kategori “buruk” yaitu 50,7% responden. Berdasarkan analisis bivariat data yang tertinggi yaitu 47 (64,4%) responden yang bersikap “Positif” dan yang berperilaku “buruk” yaitu 37 (50,7%) responden. Hasil analisis Chi-Square didapatkan p value 0,000 ≥ 0,05. Hasil penelitian ada hubungan yang signifikan antara sikap responden dengan perilaku penerapan 5M  (nilai p sebesar 0,000 ≥ α (0,05) maka Ho ditolak atau Ha diterima. Saran: diperlukan fasilitas kesehatan di sekolah yang berhubungan dengan perilaku penerapan 5M di sekolah, agar siswa terhindar dari kejadian Covid-19.Kata Kunci: covid-19, sikap, perilaku penerapan 5M
The Application of Delta Gamma Normal Value at Risk to Measure the Risk in the Call Option of Stock Astuti, Ayu; Sulistianingsih, Evy; Martha, Shantika; Andani, Wirda
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 2 (2024): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i2.19669

Abstract

Call options of stock have a nonlinear dependence on market risk factors, thus encouraging the development of a method capable of measuring the risk of call option of stock, namely the Delta Gamma Normal Value at Risk (DGN VaR) method. The DGN VaR method can provide a more accurate VaR estimate than Delta Normal VaR (DN VaR) because of the Delta and Gamma sensitivity measures in the formula. The DGN VaR method uses the second-order Taylor Polynomial approach to approximate the return of stock price underlying the call option. This research applies the DGN VaR method to analyze the risk of call options of Atlassian Corporation (TEAM) and MicroStrategy Incorporated (MSTR). Both companies operate in the technology sector and are among the top 100 largest software companies based on market capitalization for the analysis period September 21, 2022 to September 21, 2023. The analyzed options in this research consist of in-the-money and out-of-the-money options with several strike prices (K). For in-the-money options, the strike prices are $105, $110, and $115 for TEAM, and $150, $160, and $170 for MSTR, while for out-of-the-money options, the strike prices are $190, $195, and $200 for TEAM, and $330, $340, and $350 for MSTR with varying confidence levels of 80%, 90%, 95%, and 99%. Based on the results of the analysis, the DGN VaR for the analyzed in-the-money option has a greater value than the DGN VaR for the analyzed out-of-the-money option.
ANALISA STRATEGI KOMUNIKASI PEMASARAN ONLINE DAN OFFLINE PADA INDUSTRI PERHOTELAN DI BALI TERHADAP KEPUTUSAN PEMBELIAN WISATAWAN EROPA astuti, ayu
Jurnal Ilmiah Dinamika Sosial Vol 2 No 1 (2018)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38043/jids.v2i1.351

Abstract

ABSTRACTBali is a renowned travel destination that is visited by travelers from all over the world. European travelers, particularly, has been one of the largest share markets that visit and spend their holiday in Bali since a long time ago. Marketing communication campaigns are executed by practitioners in hospitality industry to grab European market share, through not only traditional media, but also digital or online media, to increase room nights as well as revenue. This study focuses to identify the effectiveness of online and offline Integrated Marketing Communication strategy towards the buying decision of European travelers, including their behavior in the process of decision-making. Do the marketing communication strategies through traditional media influence them in choosing a hotel, or does the tendency of using new technology make the online media play more roles in decision-making? Knowing which media is effective, it is beneficial to the companies in hospitality industry in Bali to understand the behavior of the clients’ decision-making and to push their marketing communication campaigns through the right medium that influences their clients’ buying decision.Keywords :Integrated Marketing Communication, , European Tourist Consumer Behavior, Travel Agent , Online Travel Agent .Purchase Decision
APPLICATION OF DELTA GAMMA (THETA) NORMAL APPROXIMATION IN RISK MEASUREMENT OF AAPL'S AND GOLD'S OPTION Sulistianingsih, Evy; Martha, Shantika; Andani, Wirda; Umiati, Wiji; Astuti, Ayu
MEDIA STATISTIKA Vol 16, No 2 (2023): Media Statistika
Publisher : Department of Statistics, Faculty of Science and Mathematics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/medstat.16.2.160-169

Abstract

The option value has a nonlinear dependence relationship on risk factors existing in the capital market. Therefore, this paper considered utilizing Delta Gamma (Theta) Normal Approximation (DGTNA) as a nonlinear approach to determine the change of profit/loss of a European call option to assess the option risk. The method uses the second order of Taylor Polynomial around the stock price underlying the option to approximate the option profit/loss, which is crucial to construct the VaR based on DGTNA. VaR based on DGTNA also considered three Greeks, namely Delta, Gamma, and Theta, known as sensitivity measures in option. This research applied VaR based on DGTN approximation to analyze the European call option of Apple Inc (AAPL) and Barrick Gold Corporation (GOLD) for several strike prices. The performance of DGTN VaR analyzed by Kupiec Backtesting summarized that in this case, DGTN VaR provides the best risk assessment over different confidence levels (80, 90, 95, and 99 percent) compared to Delta Normal VaR and Delta Gamma Normal VaR.
Co-Authors Andani, Wirda Atira Atira Balaka, Kemal Idris Dianto, Dianto Evy Sulistianingsih Fitriani, Yessi Fitriyani, Harina Karniman, Tegoeh S Marinus Barra Tandiayuk Martha, Shantika muhammad, sultanaulya Nurmalasari Setiawan, Muhmammad Azdar Sopiah, Popi Umiati, Wiji