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SUNDANESE ETHNOMATHEMATICS: MATHEMATICAL ACTIVITIES IN ESTIMATING, MEASURING, AND MAKING PATTERNS Muhtadi, Dedi; Sukirwan, Sukirwan; Warsito, Warsito; Prahmana, Rully Charitas Indra
Journal on Mathematics Education Vol 8, No 2 (2017)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.54 KB) | DOI: 10.22342/jme.8.2.4055.185-198

Abstract

Mathematics is a form of culture integrated in all aspects of society, wherever there are, including the sundanese ethnic communities. This enables the mathematical concepts embedded in cultural practices and recognizes that all people develop a special way of doing mathematics called ethnomathematics activities. Sundanese ethnomathematics is mathematics in sundanese culture implemented in community activities. Sundanese ethnic sundanese people living in the area of West Java Indonesia, speaking sundanese language, and having activities  reflecting sundanese culture. Sundanese ethnomathematics in this study has three activities, namely estimating, measuring, and making patterns appearing in the activities in term of kibik (a unit for measuring volume), bata (a unit for measuring surface area), and path pihuntuan (a model of cane work).DOI: http://dx.doi.org/10.22342/jme.8.2.4055.185-198
Effectiveness of Social Science Learning Based on Noble Values of Ki Hajar Dewantaras Teaching to Strengthen the Students Character Warsito, Warsito; Asrowi, Asrowi
International Journal of Active Learning Vol 2, No 1 (2017): April 2017
Publisher : International Journal of Active Learning

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.915 KB) | DOI: 10.15294/ijal.v2i1.9388

Abstract

The objectives of this research are: 1) to describe the reasons why social science learning based on the noble values of Ki Hajar Dewantaras teaching is effective to strengthen the students character; 2) to describe the effectiveness of social science learning based on the noble values of Ki Hajar Dewantaras teaching in to strengthen the students character; 3) to compare the effectiveness of the enhancement of the students character of social science learning through the noble values of Ki Hajar Dewantaras teaching and conventional social science learning. This research used the mixed methods. The population was the students in Grade VIII of State Junior Secondary Schools in Solo Raya and its vicinity which encompasses Surakarta City, Boyolali Regency, Sukoharjo, Karanganyar, Wonogiri, Sragen, and Klaten. The data were collected through (1) test, (2) questionnaire, (3) in-depth interview, (4) observation, and (5) documentation. The data were analyzed by using the difference test. The results of research are as follows: 1) the reasons why social science learning process based on the noble values of Ki Hajar Dewantaras teaching is effective to strengthen the students character 2) Social science learning based on the noble values of Ki Hajar Dewantaras teaching is more effective in strengthen the students understanding of character education, and it is more effective than the conventional learning as indicated by the results of the difference test.
EFEKTIFITAS MODEL PEMBELAJARAN KOOPERATIF TIPE STUDENT TEAMS ACHIEVEMENT DIVISION (STAD) TERHADAP KETERAMPILAN BERHITUNG PECAHAN KELAS IVB MIN NGLAWU SUKOHARJO Warsito, Warsito
Widya Wacana: Jurnal Ilmiah Vol 14, No 1 (2019): February, Jurnal Widya Wacana
Publisher : UNIVERSITAS SLAMET RIYADI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.406 KB) | DOI: 10.33061/ww.v14i1.2753

Abstract

This study aims to determine: Effectiveness of the STAD type cooperative learning model on fraction counting skills in IVC class 2016/2017 academic year. This research is experimental research. with the design of the One Group Pretest Potest Design. The research sample was obtained from all class students of class IVB MIN Nglawu Sukoharjo totaling 38 students consisting of 23 male students and 15 female students .. The sampling technique in this study was total sampling. The technique of collecting data uses a fraction counting skill test. Test the validity of the data using the item analysis test using Anates. Data analysis techniques in this study are t-test and N-gain test. In this study analyzed with the help of SPSS 21 software t test and N-gain test.The result of calculating the value of "t" is equal to - 15,989 with sig (2-tailed) equal to 0,000 whose value is less than 0.05. It can be concluded that there are significant differences in fraction counting skills before and after using the STAD type cooperative learning model. The results of the calculation of effectiveness using the N-gain formula are 0.427, if it is confirmed by the effectiveness criteria and the results fall into the criteria of being.
POLA REKRUITMEN CALON LEGISLATIF PARTAI POLITIK Warsito, Warsito; Prasetyo, Yeni
JURNAL ILMU SOSIAL Volume 5, Issue 2, Year 2006
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6896.771 KB) | DOI: 10.14710/jis.5.2.2006.97-111

Abstract

A political party had main function to supply for political recruitment. The recruitment processes would determine the quality and modernity of the party as well as the process of democracy. Comparing of recruitment processes of Golkar party between the general election of 1999 and 2004 was significant to identify the future of Golkar big political party as well as the next Indonesian politics. There were a lots of benefits taken from learning the recruitment.
REAKSI ETERIFIKASI δ-GUAIENE MENGGUNAKAN KATALIS FeCl3/p-TsOH Utomo, Edi Priyo; Warsito, Warsito; Aziz, Mohamad Fathoni
Jurnal Ilmu Kimia Universitas Brawijaya Vol 1, No 1 (2015)
Publisher : Jurusan Kimia, FMIPA Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (799.59 KB)

Abstract

δ-guaien merupakan komponen utama kedua dari minyak nilam setelah patchouli alkohol yang dapat diderivatisasi menjadi senyawa eter dengan posisi pada karbon tersier. Senyawa eter pada posisi ini dapat digunakan sebagai zat campuran bahan bakar minyak untuk menaikkan angka oktan. Reaksi eterifikasi dapat dilakukan menggunakan berbagai macam reaksi dengan katalis logam. Penelitian ini fokus pada reaksi katalis logam untuk mensintesis senyawa eter dari δ-guaien sebagai bahan dasar. Reaksi dilakukan menggunakan katalis FeCl3/p-TsOH.H2O dan dianalisa menggunakan FTIR dan KG-SM. Hasil dari FTIR menunjukkan adanya puncak baru pada spectra IR pada 1076 cm-1 yang menunjukkan adanya ikatan C-O eter. Untuk hasil dengan KG-SM, diperoleh senyawa eter sebesar 1,25% dari kromatrogam KG-MS. Persen terbesar dari kromatrogam adalah senyawa alkohol sebesar 88,99%. Dari hasil tersebut dapat disimpulkan bahwa logam efektif digunakan sebagai katalis, namun untuk reaksi eterifikasi katalis seharusnya bebas dari kandungan air untuk mencegah terjadinya produk alkohol.
REAKSI EPOKSIDASI δ-GUAIEN DENGAN HIDROGEN PEROKSIDA (H2O2) MENGGUNAKAN KATALIS MnSO4.H2O Utomo, Edi Priyo; Warsito, Warsito; Rodiyah, Roirotul
Jurnal Ilmu Kimia Universitas Brawijaya Vol 1, No 1 (2015)
Publisher : Jurusan Kimia, FMIPA Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (979.264 KB)

Abstract

δ-Guaien adalah komponen utama kedua dari minyak nilam, yang struktur molekulnya mengandung ikatan ganda. Ikatan ganda ini dapat teroksidasi membentuk senyawa teroksidasi seperti δ-guaien epoksida. Penelitian ini bertujuan untuk melakukan reaksi epoksidasi δ-guaien. Epoksidasi dilakukan dengan mereaksikan senyawa δ-guaien menggunakan katalis MnSO4.H2O dalam pelarut t-BuOH. Produk yang dihasilkan dikarakterisasi menggunakan Kromatografi Gas-Spektrofotometer Massa (KG-SM) dan FT-IR. Aroma dari δ-guaien epoksida dikarakterisasi dengan uji organoleptik yang didasarkan pada penilaian panelis. Hasil dari FT-IR menunjukkan adanya puncak pada 1256,57 cm-1 yang menunjukkan adanya ikatan C-O-C eter siklis. Hasil dengan KG-SM menunjukkan senyawa δ-guaien epoksida pada waktu retensi 23,553 menit dan mirip dengan isokariofilen oksida sebagai senyawa standart. Karakter organoleptik menunjukkan aroma hard woody (sineol) dengan konversi sebesar 15,45%.
Desain dan Analisis Pengukuran Viskositas dengan Metode Bola Jatuh Berbasis Sensor Optocoupler dan Sistem Akuisisinya pada Komputer Warsito, Warsito; Suciyati, Sri Wahyu; Isworo, Dyan
Jurnal Natur Indonesia Vol 14, No 3 (2012)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (306.777 KB) | DOI: 10.31258/jnat.14.3.230-235

Abstract

It has been designed and analyzed the low cost viscometer using falling ball method, the sample analyzed is glycerin fluid at 20oC. Two optocoupler circuits have been used as time measurement system of falling ball between two references point, light source used was infrared laser diode. The computer acquisition system use serial communication and it has been perfectly made and characterized. The velocity measurement system has 0.75 x 10-1 s resolution, but the resolution of integrated system both of hardware and acquisition software, is about 10-1 s. The theoretical viscosity value has been calculated and simulated to abtain the absolute viscosity value. This simulation results have been analyzed and compared with the experiment results. The correction factor for velocity calculation has been discussed and gave the optimum value of velocity correction factor (0.4425), regarding to the dimension of tube and ball used in this research. Based on the experiment, the viscosity of glycerin obtained was 1418.0309±1.6157 mPa.s., this value was with similar with the literatures and has a 0.57% of accuracy error (ε0).
PERHITUNGAN DEBIT ALIRAN PADA SISTEM ALIRAN TERBUKA MELALUI PENGUKURAN TINGGI MUKA AIR MENGGUNAKAN TRANSDUSER ULTRASONIK Gurum A P, Gurum A P; Kalpataru I, Kalpataru I; Warsito, Warsito
SEMIRATA 2015 Prosiding Bidang Fisika
Publisher : SEMIRATA 2015

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (619.782 KB)

Abstract

Kemampuan pengukuran debit aliran sangat diperlukan untuk mengetahui potensi sumberdaya air di suatu wilayah aliran sungai, mengevaluasi ketersediaan air, dan simulasi pada sistem peringatan dini banjir.  Perhitungan besarnya debit air yang mengalir pada saluran sistem open channel lebih komplek dibandingkan saluran tertutup (close channel). Hal ini disebabkan berbagai factor seperti bahan pembentuk saluran, derajat ketidakteraturan, variasi penampang, besarnya pengaruh penghambat, dan derajat kelokan yang harus diperhitungkan, dan disebut sebagai koefisien manning. Besarnya debit aliran pada sistem open channel akan berdampak langsung pada perubahan level permukaan aliran. Persamaan Chezy akan memudahkan untuk pengukuran debit aliran secara real time melalui pengukuran tinggi permukaan aliran. Pada penelitian ini telah dikembangkan alat yang mampu mengukur level muka aliran sekaligus besarnya debit aliran sungai menggunakan sinyal ultrasonik dengan memperhitungkankoefisien manning. Alat yang dibuat memiliki kesalahan pengukuran tinggi muka air sebesar 1,16 % dan kesalahan perhitungan debit sebesar 2,42%. Kata kunci : Open channel, keofisien manning, debit aliran
Study of 2D and 3D Optical Beam Induced Voltage Imaging Using Photoresistor Sensor Warsito, Warsito; Suciyati, Sri; Harnani, Susi; Dzakwan, Akhmad
Makara Journal of Technology Vol 9, No 1 (2005)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (139.911 KB) | DOI: 10.7454/mst.v9i1.96

Abstract

This article shows a method to study OBIV (optical beam induced voltage) imagerie system, that usually employ a laser scanning microscopy system. The OBIV imagerie system developed use a photoresistor sensor as a sample and simultaneously it can be used for analyzing its inhomogeneity response. Resolution of the system is still low, about 350μm due to high value of incident light diameter. The results inform that photoresistor  sensors gave an optimum response if the incident light hits the center of sensible zone.
PEREMPUAN DALAM KELUARGA MENURUT KONSEP ISLAM DAN BARAT Warsito, Warsito
Profetika Vol. 14, No. 2, Desember 2013
Publisher : Muhammadiyah University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Islam as ideology is agent of change. When it came to the Arabic people, theconditions of women were so pity. They never got their rights of human being but sometribes killed the daughter baby. After it came to the world, women got their duties, theywere allowed to make transaction and their right life is saved. Islam is a religion whichrules all field of human being life side. It rules the roles of man and woman and theirduties. Not only ruling the roles and duties but also the way how to practice the religion.Nowadays, feminists make confrontation ideas. They said that Islam is injustice religion.They said that women are better to pray at home and men pray at the mosques. Theydisagree that leader is only for men but they see that it is also women’s right. Theyargued that women today are so different from the past. The feminists’ idea that supportsme to conduct the study. The aims of this study is to compare the Islamic teaching andfeminists’ teaching by using Maqasid Syari’ah. The result of the study is, Islamicteachings are appropriate rules for human being but feminists’ teaching damage thesocial norms and women’s right.Key words: women, family, Islam, westSebagai sebuah ideologi, Islam merupakan agen perubahan. Ketika Islamdatang kepada orang-orang Arab, kondisi perempuan sungguh mengenaskan.Kaumperempuan tidak pernah mendapat hak-hak mereka sebagai manusia, bahkan beberapasuku membunuh bayi perempuan yang baru lahir. Dalam perkembangannya, wanitapunya tugas-tugas dan diizinkan untuk berperan dalam masyarakat serta memperolehhak-haknya. Islam adalah agama yang mengatur semua bidang kehidupan manusia.Termasuk dalam mengatur peran dan tugas-tugas kaum laki-laki dan perempuan. Tidakhanya mengatur peran dan tugas tetapi juga bagaimana cara mempraktekkan ajaranagama dalam kehidupan sehari-hari. Saat ini, feminis mengusung ide-ide yangbertentangan dengan Islam, antara lainmereka mengatakan bahwa Islam adalah agamayang mengajarkan ketidakadilan, Islam membedakankesempatan wanita lebih baik untukberibadah di rumah dan laki-laki beribadah di masjid-masjid. Makalah ini berusahamembandingkan ajaran Islam dan ajaran feminis dalam masalah peran perempuandalam keluarga dengan menggunakan Maqasid Syari’ah. Hasil dari penelitian ini adalah,ajaran Islam adalah aturan yang sesuai untuk manusia tetapi ajaran feminiscenderungmengabaikan norma-norma sosial dan hak perempuan.Kata kunci: perempuan, keluarga, Islam, barat