Articles

UJI RETENSI DAN EFEKTIVITAS TANAMAN KUMIS KUCING (Orthosiphon aristatus) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp) PADA KAYU DURIAN (Durio zibethinus) Mariana, Eka; Ariyanti, Ariyanti; Erniwati, Erniwati
Warta Rimba Vol 1, No 1 (2013)
Publisher : Warta Rimba

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Abstract

Nowadays, utilization ofnon-durable wood species in Indonesia is one alternative to meet the needs ofthe wood. Use natural preservatives such as Orthosiphon aristatus in natural wood preservation processis highly recommended as environmentally friendly.This study was aimed to determine retention and the effects of Orthosiphon aristatus leaves extracts as preservation material of Durio zibethinus wood on the Coptotermes sp. Attacks. Regency and the laboratory of Forestry Science, Tadulako University, from May to June 2013. The study was using completely randomized design with factorial pattern. The treatment of study was applying two factors. First, concentration of Orthosiphon aristatus extracts with three levels, namely; 9.09% (A1), 16,67% (A2), and 23,07% (A3). Second, Dipping time with three levels,namely: 1 day (B1), 3 days (B2), and 5 days (B3). The results showed that the highest retention value (3,538g/cm3) was achieved by the combination treatment between concentration 23,07% and dipping time 5 days (A3B3) while the lowest retention value (0,562g/cm3) was achieved by the combination treatment between concentration 9,09% and dipping time 1 day (A1B1). Hence, the lowest effectivity of preservation materials indicated by the highest weight loss,was achieved by A1B1 combination treatment (3,37%) while the lowest (highest effectivity) was achieved by (A3B3) combination treatment (1,88%). Keywords: Concentration, Dipping time, Orthosiphon aristatus, Durio zibethinus, Coptotermes sp.
PENGARUH KONSENTRASI DAN LAMA PERENDAMAN BAHAN PENGAWET DAUN TEMBELEKAN (Lantana camara L.) PADA KAYU BAYUR (Pterospermum sp.) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Salmayanti, Salmayanti; Ariyanti, Ariyanti; Hapid, Abdul
Warta Rimba Vol 1, No 1 (2013)
Publisher : Warta Rimba

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Abstract

There are about ± 4.000 wood species in Indonesia. In small amount of that woods were categorized as durable wood (Class I and II) while mostly (80-85%) were categorized non-durable wood (Class III to V). This study was aimed to determine the effects of Lantana camara L. leaves extracts as preservation material of Pterospermum sp wood on the Coptotermes sp. attacks. The experiment was conducted in the laboratory of Forestry science, Forestry Faculty, Tadulako University, from May to June 2013. The study was using completely randomized design with pattern. The treatment of study was applying two factors. First, concentration of L.camara L. extracts with three levels, namely ;9,09 g (K1), 13,04 g (K2), and 16,66 g (K3). Second, Dipping time with three levels, namely: 1 day (L1), 3 days (L3), and 5 days (L5). Data was analyzed by using analysis (Anova).The results showed that water contents and density of Pterospermum sp. woods was 8,37% and 0,321 g/cm³, respectively. Hence, the highest weight loss was achieved by K1L1 combination treatment (9,99%) while the lowest was achieved by K3L5 combination treatment (8,93%). Generally, concentration of L.camara L. and dipping time extracts did not affect significantly the weight loss of Pterospermum sp woods. Keywords: Concentration, Dipping, Lantana camara L., Pterospermum sp., Coptotermes sp.
KERAGAMAN JENIS RAYAP PADA PERUMAHAN DI KABUPATEN SIGI SULAWESI TENGAH Hapid, Abdul; Ariyanti, Ariyanti; Zulkaidhah, Zulkaidhah
ForestSains Vol 15, No 1 (2017): Desember
Publisher : Universitas Tadulako

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Abstract

Termite control activities in Indonesia, particularly in Central Sulawesi until the moment still confront obstacles in the forms not yet complete information on the diversity of the termite itself and knowledge of the characteristics bioecology and habit in this spread. This is the cause so far undertaken control measures are still limited to the spraying of chemicals that require high costs and have negative impacts on the environment and the potential to kill organisms that are beneficial. This study was aimed known the diversity of termitesattacking in the buiding Sigi District, Central Sulawesi.The study was conducted at termite habitat. These termite sample were collected by getting baitting method and direct taking of the habitat of termites, which continued with the identification of activities for determining the types of termites. The result showed that there are six genera of termites from 15 Subdistrict in Sigi District were Microcerotermes, Odontotermes, Nasutitermes, Schedorhinotermes dan Parrhinotermes.
MENINGKATKAN KEGIATAN SOSIAL EMOSIONAL MELALUI PERMAINAN GOBAG SODOR PADA ANAK Ariyanti, Ariyanti
BELIA Vol 2, No 2 (2014)
Publisher : BELIA

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Abstract

Latar belakang: Di TK Mutiara Semen Wonoboyo Temanggung khususnya kelompok A masih banyak anak yang sosial emosionalnya belum seimbang sehingga sulit dibimbing dan diarahkan. Setiap diberi tugas untuk membuat kelompok atau regu bermain ternyata banyak anak yang tidak mampu mengendalikan emosinya, ada yang menangis bahkan ada yang bermain sendiri. Meskipun guru sudah berusaha semaksimal mungkin memberikan pengarahan atau penjelasan supaya anak tertarik, namun masih ada beberapa anak yang kurang memperhatikan, pada hal kegiatan bermain juga mempengaruhi kegiatan belajar anak disekolah. Hal ini juga menyebabkan kemampuan bersosialisasi anak menjadi rendah.. Tujuan penelitian ini adalah untuk mengetahui bagaimana kegiatan sosial emosional anak sebelum melalui permainan gobag sodor, untuk mengetahui bagaimana proses penggunaan permainan gobag sodor dalam meningkatkan kegiatan sosial emosional anak, dan untuk mengetahui bagaimana hasil pembelajaran melalui permainan gobag sodor dapat meningkatkan kegiatan sosial emosional anak. Penelitian yang digunakan adalah penilaian tindakan kelas. Lokasi penelitian di TK Mutuiara Semen pada anak kelompok A yang berjumlah 16 terdiri dari 7 anak laki-laki dan 9 anak perempuan. Sumber data penilaian ini dari hasil observasi, dan dokumentasi serta wawancara dengan narasumber. Teknik pengumpulan data dengan observasi, wawancara, dan dokumentasi.. Semua data divalidasi dengan menggunakan tringulasi yaitu penapaian validasi menggunakan berbagai jenis alat atau instrumen ,untuk mengecek kebenaran dengan menggunakan dari sumber yang berbeda dengan menggunakan theknik yang sama. Teknik analisis data yang digunakan dalam penelitian ini adalah Deskriptif kualitatif dianalisis secara kualitatif yaitu menganalisis hasil observasi yang melibatkan semua aspek yang kemudian diprosentasikan untuk memperoleh data yang valid.Diskriptif komporatif dilakukan untuk membandingkan hasil belajar tiap siklus, yaitu siklus I dan siklus II dengan memperhatikan indikator kerja. Penelitian dilakukan selama 2 siklus dengan prosedur umum meliputi tahapan (1) Perencanaan yaitu merumuskan masalah, menentukan tujuan, metode penelitian dan rencana tindakan; (2) Tindakan yaitu dilakukan sebagai upaya perubahan yang dilakukan, (3) Observasi dilakukan secara sistematis untuk mengamati hasil atau dampak tindakan terhadap proses belajar mengajar, (4) Refleksi yaitu mengkaji dan mempertimbangkan hasil atau daftar dari tindakan yang dilakukan. Hasil penelitian menunjukkan melalui permainan gobag sodor dapat meningkatkan kegiatan sosial emosional pada anak. Hal ini dibuktikan dengan adanya peningkatan sosial emosional pada anak dari Pra Siklus, Siklus I, Siklus II, yaitu pra siklus  31%, siklus I meningkat menjadi 56%, siklus II meningkat menjadi 81% sehingga penulis dapat menyimpulkan bahwa pembelajaran melalui permainan gobag sodor salah satunya dapat melatih kemampuan anak dalam mengendalikan perasaan sehingga kegiatan sosial emosional anak dapat berkembang dengan baik. Kata Kunci: kegiatan sosial emosional, permainan gobag sodor
TEACHER’S STRATEGY IN SOLVING EFL STUDENTS’ PROBLEMS IN LEARNING ENGLISH Ariyanti, Ariyanti; Pane, Widi Syahtia; Fauzan, Umar
ASIAN TEFL Journal of Language Teaching and Applied Linguistics ASIAN TEFL, VOL 4(2), 2019
Publisher : Lecturer Association of Linguistics, Language Teaching, and Literature Studies in Indonesi

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Learning new language is never been so easy to master where there must be challenges that teachers face in classroom. The aim of this research is to investigate an English teacher in teaching English as a foreign language to junior high school students at Ma?had Tahfidzul Qur?an, Samarinda, East Kalimantan, Indonesia. The matters to be investigated include barriers the teacher faced as well as her strategies to solve the problems. The result of semi-structured interview showed that the biggest challenge faced by the English teacher is the condition where the students are less-motivated in learning English. Several strategies are used by the teacher such as encourage the students through verbal motivation as well as provide joyful activities such as conducted different kind of games to build positive mood and interest of students in leaning a new language. The use of proper teaching strategies is demanded in order to have English learning become students? habit. Therefore, implication of language teaching methodologies is also discussed in this research.
PERBANDINGAN AKTIVITAS ANTIOKSIDAN EKSTRAK ETANOL 70% DAUN BINAHONG (ANREDERA CORDIFOLIA, (TEN.) STEENIS) SEGAR DAN DAUN BINAHONG (ANREDERA CORDIFOLIA, (TEN.) STEENIS) KERING DENGAN METODE DPPH (2,2-DIPHENIL-1-PICRYL-HYDRAZYL) Ariyanti, Ariyanti; Imada, Tsani; Rifkasari, Ida
Jurnal Ilmu Farmasi dan Farmasi Klinik Jurnal Ilmu Farmasi & Farmasi Klinik Vol 14 No 1 juni 2017
Publisher : Universitas Wahid Hasyim Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/jiffk.v14i1.1770

Abstract

INTISARI Kerusakan pada sel dan  jaringan yang merupakan akar dari sebagian besar penyakit disebabkan oleh spesies kimia yang sangat aktif dan berbahaya yang disebut radikal bebas.Tujuan penelitian ini adalah untuk mengkaji nilai pKa dan pengaruh pembentukan senyawa kompleks ibuprofen dengan ?-siklodekstrin terhadap peningkatan kelarutan  ibuprofen. Metode penelitian yang digunakan untuk menentukan nilai pKa adalah dengan pengukuran absorbansi pada panjang gelombang 266 nm. Pengujian kelarutan dan optimasi kompleks antara ibuprofen dengan ?-siklodekstrin  menggunakan spektrofotometri  ultraviolet dengan metode  factorial design. Kompleks ibuprofen dengan ?-siklodekstrin  dievaluasi menggunakan spektrofotometri inframerah, dan  dioptimasi  dengan metode  simplex lattice designmenggunakan software design expert versi 7.1.3. Hasil penelitian ini menunjukan bahwa pKa ibuprofen adalah 4,37 ± 0,07 dan 5,24 ± 0,07.  Kompleks ibuprofen dengan ?-siklodekstrin yang terbentuk dievaluasi secara spektrofotometri inframerah  menunjukan hilangnya puncak gugus  -C=O-  dari ibuprofen pada bilangan gelombang 1721 cm-1dan transmisi baru dengan transmisi 12,77% pada bilangan gelombang  1908 cm-1  dan 9,785 pada bilangan gelombang 1698 cm-1.  Peningkatan kelarutan ibuprofen dikompleks dengan ?-siklodekstrin adalah 2,30 kali ± 0,12 pada pH 2,39; 1,30 kali ± 0,16 pada pH 6,39; 1,74 kali ± 0,06 pada pH 3,2 dan 0,99 kali ± 0,02 pada pH 7,2. Komposisi kelarutan optimum pada pH 2,39 dan 6,39 adalah pada pH 2,39, suhu 30°C, ibuprofen 100 mg, dan ?-siklodekstrin 200 mg, sedangkan pada pH 3,2 dan 7,2 adalah pada pH 3,2, suhu 45°C, ibuprofen 100 mg, dan ?-siklodekstrin 200 mg. Kata kunci: kelarutan, ?-siklodekstrin, ibuprofen, pKa.   ABSTRACT Ibuprofen is a nonsteroid anti-inflammatory drug (NSAID) that can inhibit activities of siklooksigenase-1 and siklooksigenase-2 isoenzyme, so thats with inhibiting the changing of arachidonic acid to prostaglandin can be decreased. Ibuprofen belongs to BCS class II, because it has high permeability and low solubility. The goals of this research are to determine the pKa of ibuprofen and to know the influence of the complexe formation of  ibuprofen with ?-cyclodextrin on ibuprofen solubility. Determinnation of the pKa value of ibuprofen has been conducted by measuring absorbance at wavelength 266 nm. The  optimization of complexes formation has been worked using factorial design method. Then, the complex of ibuprofen and ?-cyclodextrin evaluated using infrared spectrophotometry, and optimized with using software design expert version: 7.1.3. The result of this research showeds that the pKa value of ibuprofen wasis 4, 37 ± 0,07 and 5, 24 ± 0,07. The complexes ibuprofen with  ?--siklodekstrin was evaluated using infrared spectrophotometry there was no peak at 1721 that indicated that there was no functional group of ?C=O.  Based on simplex lattice design calculation, the best complexes consisted of ibuprofen and ?-cyclodextrin in ratio 120 and 180. The solubility data showed that complexes of ibuprofen with ?-cyclodextrin was 2,30 ± 0,12 times at pH 1,30 ± 0,16 times; 1,74 ± 0,06 times , and 0,99 time ± 0,02 at pH 7,2;  respectively at pH of 2,39; 6,39; and 7,2. Based on factorial design data, it was known that the combination of ibuprofen (100 mg) and ?-cyclodextrin (200 mg) has an optimum solubility in codition pH 2,39; 6,39 and temperature 30°C. In codition, pH of 3,2 this mixture has an optimum solubility at temperature  45°C. Keywords:solubility,?-cyclodextrin, ibuprofen, pKa.
REVERSE ENGINEERING PROGRAM KOMPUTER DALAM PERSPEKTIF HUKUM HAK CIPTA DAN PATEN DI INDONESIA MALAYSIA. Ariyanti, Ariyanti
LAW REFORM Volume 5, Nomor 2, Tahun 2010
Publisher : PROGRAM STUDI MAGISTER ILMU HUKUM FAKULTAS HUKUM UNIVERSITAS DIPONEGORO SEMARANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.454 KB) | DOI: 10.14710/lr.v5i2.12498

Abstract

Perkembangan teknologi canggih berupa komputer telah membawa manfaat  yang begitu besar bagi kehidupan manusia di mana pemanfaatannya meliputi beberapa sektor. Keadaan yang demikian berpotensi menimbulkan tindakan monopolistik. Tindakan monopolistik, meskipun terkait dengan hasil yang sama tetapi tetap memiliki perbatsan-perbatasan  tertentu, Salah satu bentuk pembatasan terhadap tindakan monopolistik hak cipta khususnya program komputer dapat dilakukan dengan reverse engineering (RE) program komputer RE merupakan suatu proses menemukan prinsip-prinsip teknologi suatu produk kemudian mencoba untuk membuat alat/produk atau program baru yang lebih unggul tanpa menyalin apapun dari aslinya. Namun RE program komputer ini tidak diatur secara khusus dalam Undang-undang.            Metode penelitiannya mengunakan pendekatan yuridis normatif yaitu dengan mengiventarisasi dan mengkaji atau menganalisis data skunder yang berupa bahan hukum primer yaitu UU no. 19 tahun 2002, akta hak cipta 1987, UU no. 14 tahun 2001, Akta Paten 1983, serta bahan hukum skunder berupa dokumen atau hasil-hasil penelitian, bahan hukum tersier berpa kamus hukum dan ensiklopedia. Kata Kunci : Program Komputer, Reverse Engineering
PENGARUH KONSENTRASI DAN LAMA PERENDAMAN KAYU SENGON (Paraserianthes falcataria L. Nielsen) DALAM EKSTRAK DAUN SIRSAK (Annona muricata L.) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Ardiansa, Budi; Ariyanti, Ariyanti; Hapid, Abdul
Warta Rimba Vol 2, No 1 (2014)
Publisher : Warta Rimba

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Abstract

Wood has many contribution for life. It can be useful for bueldings, huose ware, and for other using. The use of wood are followed by huma needs for manufactured wood in creasingly, while long life wood tend to be more scarce and higher in price. This research aims to know the influence of the concentration and the immersion time for sengon wood treated in extracted soursop leaf to defence from subterranean termite. This research was conducted in both forestry Laboratorium, Departement and faculty of forestry, University of Tadulako and in rural of Baiya, Distict of Tawaely. Starting from Desember 2013 till Februari 2014. This research used a complete randomized factorial design. The first factor was the concentration of extracted soursop leaf (A) was 4.76% (A1), 13.04% (A2) and 16.66% (A3). The second factor was the immersion time for sengon wood treated in extracted soursop leaf (B) was 5 days (B1), 10 days (B2), and 15 days (B3). The results show that the highest of losing weight is in the control (A0B1) with 3.3%, and the lowest of losing weight is in the concentration of 150g with 10 days immersion (A1B2) with 1.21%. The concentration of extracted soursop leaf and the immertion time of sengon wood did not significantly influence to the lose of weight in tested sample. Keywords: Concentration, Dipping, Paraserianthes falcataria L. Nielsen, Annona muricata L, Coptotermes sp.
RETENSI DAN EFEKTIVITAS BAHAN PENGAWET EKSTRAK DAUN CENGKEH (Syzygium aromaticum) PADA KAYU DURIAN (Durio zibethinus) TERHADAP SERANGAN RAYAP TANAH (Coptotermes sp.) Toleng, Fitriyani N.; Erniwati, Erniwati; Ariyanti, Ariyanti
Warta Rimba Vol 2, No 2 (2014)
Publisher : Warta Rimba

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Abstract

Effectiveness of natural substance as preservative agent is needed to be further observed. One of the substances is extract of Glove (Syzygium aromaticum) leaf. This extract was considered to be effective material on Durian (Durio zibethinus) wood preservative against Subterranean termite (Coptotermes sp). The aims of this study were compare the retention and the affectiveness of preservative materials which  extracted from Glove leaf by using different method of extraction. This studi was done at Agro-technology Laboratory of Agricultural Faculty, Tadulako University, over the period of March and June 2014. Bioassay on Termite destruction was done at Maku Village, Dolo of Sigi Regency. The experiment was arranged based on Completely Randomized Design (CRD) in two different factorial patterns. The first factor was different method on leaf extraction (A) i.e. by using ethanol (A1), and by using distillated water (A2). While the second factor (B) was different time on soaking material, i.e. 1 day soaking time (B1), and 3 days were soaking time (B2). All units was performed as negative control. One percent of preservative extract was applied on each experimental unit. The outcome of this study showed that water content of axtract was 14,726% and the density was 0,463 g/cm3. The highest retention value 0,1244 g/cm3 was recorded on the treatment of 3 days ethanol extraction (A1B2), while the lowest value 0,0868 g/cm3 was detected on the treatment of 1 day water extraction. The highest value on effectiveness (or lowest rate on loss weight) 2,4075% was detected after the treatment by using 3 days ethanol extraction substance, while the lowest value 4,6818% was  measured on control unit. Key words: Syzygium aromaticum, Durio zibethinus, Retention, Effectiveness.  
PENGELOLAAN PEMBELAJARAN EKONOMI BERBASIS IT KELAS XII Dl SMAN 1 GETASAN Ariyanti, Ariyanti; Markhamah, Markhamah; Syamsudin, Syamsudin
Jurnal Penelitian Humaniora Vol 13, No 2: Agustus, 2012
Publisher : Universitas Muhammadiyah Surakarta

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The purpose of this study was to describe the material, instructional strategy, media, and interaction of IT-Based Economic Learning for Class XII at SMAN 1 Getasan. It was a qualitative study using ethnographic design. Data collection method used was in depth interview, observation, and documentation. Data analysis technique used was analysis arranged in site. Data validity test used was credibility and confirmability.The findings suggested that the Economic subject materials taught at SMAN 1 Getasan were from Economic textbook published by Yudistira, Students worksheets, and also other references such as internet. Strategies of IT-Based Economic Learning at SMAN 1 Getasan focused not only on the use of technology but also on the principle of active students. lnstructional media of IT-based economic learning at SMAN 1 Getasan was very practical as presented in electronic form via LCD or player. Media used were macromedia flash software. There were one-way and two-way interactions in it. Oneway interaction occurred when teachers delivered material required an understanding while students were asked to pay attention. Two-way interactions were visible in all teachers and students activities in question and answer sessions, study group activities, and discussion.