Claim Missing Document
Check
Articles

ANALISIS PONDASI BORED PILE DENGAN PRINSIP PROBABILITAS (STUDY KASUS PROYEK HOTEL QUEST SOLO) Susanto, Agus; Listyawan, Anto Budi; Puspitasari, Dewi
Eco Rekayasa Vol. 11. No.1, Maret 2015
Publisher : Universitas Muhammadiyah Surakarta

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

Abstract

Probabilistic design began more realistic solution compare to the deterministic (conventional) design as it can describe and accommodate of soil variability.  Althought the old approach is widely used, it is confirmed, that almost all natural soils are spatially variable in their properties and rarely homogenous.  This paper focuses on the analysis and design of bored pile foundation on the project of  Solo Quest Hotel based on the probabilistic theory.  The research begins with a certain pre-liminary analysis to prepare the probabilistic analysis of bored pile foundatiaon design, by characterizing the cohesion (cu) from convertion of N value on three SPTs data taken from the site.  It involves an extensive analysis to perform the best-fit distribution of pointwise variability of cohesion (cu) using computer program written in MATLAB.  The next step is deriving the point statistics (i.e. mean, standard deviation, and coefficient of variation) across the site.  Finally, a certain monte carlo analysis using Crystal Ball computer program is carried out to design the bored pile foundation by inputing all data taken from MATLAB analysis.  The bored pile installed in 12 m depth and the diameters of bored pile 0,6 m respectively.  The  bored pile experiences 43.354,455 kN vertical load.  The results show that there is no objection to hypothesis of normality in the Chi-Square analysis.  Compare to the deterministic analysis, the probabilistic design needs more bored pile to resist the vertical load in a safety factor 2,5 and confident limit 95%.  Furtheremore, the higher variation of  cu data the larger number of bored pile is desired.
PENINGKATAN LITERASI MEMBACA MELALUI PENERAPAN PROBLEM BASED LEARNING PADA PEMBELAJARAN BIOLOGI SISWA KELAS X MIA 1 SMAN 1 BOYOLALI TAHUN PELAJARAN 2014/2015 Pamungkas, Rahmania; Probosari, Riezky Maya; Puspitasari, Dewi
Prosiding SNPS (Seminar Nasional Pendidikan Sains) 2015: Prosiding SNPS (Seminar Nasional Pendidikan Sains)
Publisher : Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (33.496 KB)

Abstract

Penelitian bertujuan untuk meningkatkan  literasi membaca siswa melalui penerapan model problem based learning di kelas X MIA 1 SMAN 1 Boyolali tahun pelajaran 2014/2015.  Penelitian ini merupakan penelitian tindakan kelas (Classroom Action Research) yang dilakukan dalam 2 siklus. Setiap siklus terdiri dari perencanaan, tindakan, observasi, dan refleksi. Subjek penelitian adalah 33 siswa kelas X MIA 1 SMAN 1 Boyolali tahun pelajaran 2014/2015. Data penelitian diperoleh melalui, tes, wawancara, dan dokumentasi. Analisis data menggunakan teknik analisis deskriptif kualitatif. Validasi data dengan menggunakan teknik triangulasi metode.  Hasil penelitian menunjukkan bahwa ada peningkatan literasi membaca siswa kelas X MIA 1 SMAN 1 Boyolali tahun pelajaran 2014/2015 melalui penerapan model problem based learning.  Peningkatan Literasi Membaca ditunjukkan dengan meningkatnya capaian  rata-rata persentase aspek literasi membaca siswa dari 61,24% pada pra siklus menjadi 66,72% pada siklus I, selanjutnya meningkat menjadi 73,50% pada siklus II Berdasarkan hasil tersebut dapat disimpulkan bahwa ada peningkatan literasi membaca siswa dalam pembelajaran biologi melalui penerapan model problem based learning di kelas X MIA 1 SMAN 1 Boyolali tahun pelajaran 2014/2015.
Analysis of traumatic ulcer healing time under the treatment of the Mauli banana (Musa acuminata) 25% stem extract gel Puspitasari, Dewi; Apriasari, Maharani Laillyza
Padjadjaran Journal of Dentistry Vol 29, No 1 (2017): March
Publisher : Faculty of Dentistry Universitas Padjadjaran, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (300.637 KB) | DOI: 10.24198/pjd.vol29no1.11598

Abstract

ABSTRACTIntroduction: Traumatic ulcer is one of oral disorders that often occur. The prevalence is quite high, between 3-24% of population. Therapy of traumatic ulcer is symptomatic. People usually use Aloe vera extract gel. Previous research showed that the Aloe vera gel is equivalent with ethanol extract of 25% Mauli banana (Musa acuminata) stem in accelerating wound healing based on the number of macrophages and neovascular. The objective of the study is to find out the time difference of traumatic ulcer healing using 25% Musa acuminata stem extract gel compared to a gel containing Aloe vera extract. Methods: The research was post test design. Subjects were patients of Oral Medicine Installation in Gusti Hasan Aman Dental Hospital Banjarmasin with diagnosis of traumatic ulcer using completely random sampling method. Eight patients as samples were determined by the formula of Lemeshow. Results: there was no significant difference with p=0,724 (p>0,05) between healing time using Aloe vera gel and 25% Musa acuminata stem extract. Conclusion: At the concentration of 25% Musa acuminata stem extract gel concentration has the same healing time with Aloe vera gel, therefore can be recommended as a topical use for traumatic ulcer healing.Keywords: Musa acuminata stem, Healing time, Traumatic ulcer
Students’ Need Analysis of English Reading Skills for Academic Purposes Wahyono, Edi; Puspitasari, Dewi
Proceeding of International Conference on Teacher Training and Education Vol 1, No 1 (2016): Proceeding of International Conference on Teacher Training and Education
Publisher : Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.592 KB)

Abstract

The study explores students’ needs for English reading skills among students of English Language Studies. It also explores the difficulties in reading skill for academic purposes (English for research) faced by the students. The study is based on the two basic aspects of exploring language needs: Target Situation Analysis and Present Situation Analysis. The participants of the study are 13 graduate students of English Language Studies of PostGraduate Program in the third semester. Questionnaire is an instrument for data collection. Quantitative and qualitative data were analyzed descriptively. The study showed that most of students often have difficulties in reading English texts for academic purposes. They want to improve their comprehension level through EAP course and enable to improve their writing performance.
PERLAKUAN PERMUKAAN PADA REPARASI RESIN KOMPOSIT DAN PENGARUHNYA TERHADAP KUAT REKAT RESIN KOMPOSIT BARU–RESIN KOMPOSIT LAMA Puspitasari, Dewi; Herda, Ellyza
Dentino Vol 1, No 1 (2016)
Publisher : FKG Unlam

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

Abstract

ABSTRACT Composite resin that have been restored in the oral cavity ages over time and can be fail. The total removal of the restoration is the most common procedure that is often done in daily clinical practice. This procedure may be regarded as overtreatment if only small portions of the restoration has damaged, therefore repairing composite resin could be more effective choice. The bond strength of repairing composite resin can be improved by surface treatment. Surface treatment have been categorized in several method such as surface roughening with diamond bur, air abrasion (sand blasting) with aluminum oxide, chemical treatment (etching) with phosphoric acid or hydrofluoric acid, silane coupling agent and intermediate adhesive resin (adhesive system and flowable composite). The objective of this study was to discuss repairing aged composite resin, surface treatment method that have been practiced and the influence to bond strength of repaired composite resin based on published article. Combination between suface treatment methods will result different values in bonding strength. Up to recent there are no practice best methods yet, however combination air abrasion with adhesive system or with flowable composite improving bond strength that compared to composite resin bond strength without reparation. ABSTRAK Restorasi resin komposit didalam rongga mulut dapat mengalami kegagalan seiring dengan waktu. Prosedur perawatan yang sering dilakukan adalah mengganti restorasi secara keseluruhan. Prosedur ini dianggap berlebihan bila hanya sedikit bagian restorasi yang rusak, sehingga memperbaiki atau reparasi resin komposit menjadi pilihan yang lebih efektif. Kuat rekat resin komposit yang diperbaiki dapat ditingkatkan dengan perlakuan permukaan antara lain pengasaran permukaan dengan bur intan, abrasi udara (sand blasting) dengan aluminium oksida, perlakuan kimia (etsa) dengan asam fosforik atau dengan asam hidrofluorik, penggunaan silane coupling agent dan intermediate adhesive resin (sistem adhesif dan flowable composite). Tujuan dari penulisan makalah ini adalah untuk menelaah pustaka mengenai reparasi resin komposit, metode perlakuan permukaan yang dilakukan dan pengaruhnya terhadap kuat rekat reparasi komposit resin berdasarkan hasil penelitian yang telah dipublikasikan. Kombinasi antara metode perlakuan permukaan menghasilkan nilai kuat rekat yang berbeda. Hingga saat ini belum ada metode perlakuan permukaan yang terbaik, tetapi kombinasi abrasi udara dengan sistem adhesif atau dengan flowable composite dapat menghasilkan kuat rekat yang sebanding dengan kuat rekat resin komposit tanpa reparasi.
THE COMPARISON OF THE STORAGE TEMPERATURE ON DIAMETRAL TENSILE STRENGHT VALUE OF BULK-FILL RESIN COMPOSITE Khairina, Niketa; Puspitasari, Dewi; Diana, Sherli
Dentino Vol 3, No 1 (2018)
Publisher : FKG Unlam

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

Abstract

Background: The decrease and increase of bulk-fill composite resin storage temperature are infunction to extend the expiration period and obtain lower viscosity, making it easier for application of composite resin. Temperature is one that affects the polymerization process. Different polymerization qualities will affect the physical and mechanical properties of the composite resin, one of which is the diametral tensile strength. Purpose: To analyze the difference of tensile strength value of diametral bulk-fill composite resin stored at low temperature (5˚C), room temperature (25˚C) and high temperature (35˚C). Method: 33 specimens with 6 mm diameterand 3 mm thicknesswere divided into three treatment groups consisted oflow temperature storage group (5˚C), room temperature group (25˚C)and high temperature group (35˚C). The diametral tensile strength wasmeasured by Universal Testing Machine and analyzed by One Way Anova and Post Bonfond Bonferroni test. Result: The mean diametral tensile strength of bulk-fill composite resin with storage temperature 5˚C (35,85 MPa), 25˚C (42,72 MPa) and 35˚C (45,73 MPa). One Way Anova Test obtained p value = 0,001 (p>0,05) and continued with Post Hoc Bonferroni, so it can be concludedthat there was significant difference in the value of diametral tensile strength of bulk-fill composite resin with 25˚C and 35˚C storage temperature compared with 5˚C, and there was no significant difference in diametraltensile strengthof bulk-fill composite resin by comparing the temperature treatment of 25˚C with 35˚C. Conclusion: The diametral tensile strength value of the bulk-fill composite resin are increased as the storage temperature increase.
THE EFFECT OF THERMOCYCLING TEST ON THE DIAMETRAL TENSILE STRENGTH VALUE OF BULK FILL RESIN COMPOSITE Puspitasari, Dewi; Lukman, Andi; Ichrom Nahzi, Muhammad Yanuar
Dentino Vol 3, No 1 (2018)
Publisher : FKG Unlam

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

Abstract

      Background:. Bulk fill resin composite can be applied and light-cured to depths of 4 mms at once. Varying temperature changes in the oral cavity that  caused by the comsumption cold or hot food and beverage may  cause stress on the resin composite material resulting in restoration failure. Temperature changes at 5°C and 55ºC may decrease the mechanical properties of resin composite, one of which is the diametral tensile strength. Purpose: to analyze the thermocycling test effect using 1500 and 3000 cycles to the  diametral tensile strength value. Method: This study was purely experimental post test-only with control design. Twenty four bulk fill resin composite samples were divided into 3 groups, which are control group didn’t tested thermocycling, second group treatment were tested thermocycling 1500 cycles and third group were tested thermocycling 3000 cycles.Diametral tensile strength was tested with universal testiimg machine and analyzed by One Way Annova. Result: mean value of diametral tensile strength bulk-fill resin composite of control group 42.35± 4.08 MPa, group thermocycling 1500 cycles 42.25 ± 2.26 MPa, and group thermocycling 3000 cycles 39,98±1.84  MPa. there are no significant difference in diametral tensile strength values of bulk-fill resin composite between thermocycling test group and control group. Conclusion: Thermocycling test 1500 cycle and 3000 cycles to composite resin not altered the diametral tensile strength value.
PERBANDINGAN JARAK PENYINARAN DAN KETEBALAN BAHAN TERHADAP KEKERASAN PERMUKAAN RESIN KOMPOSIT TIPE BULK FILL Razibi, Nor Diane; Ichrom Nahzi, Muhammad Yanuar; Puspitasari, Dewi
Dentino Vol 2, No 2 (2017)
Publisher : FKG Unlam

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

Abstract

Background: The polymerisation process is a process of polymer formation of a combination of several monomers. This is due to the incomplete polymerization, which affects the consistency and durability of the composite resin in the oral cavity. The maximum surface can result in composite resin are not able to withstand the pressure generated during mastication it can undergo cracking (rupture) or off the tooth. Purpose: To compare the material thickness and curing light distance of bulk-fill composite resin to determine its’ surface consistency. Method: Laboratorium experimental study with a post-test only with control group design. A total of 63 composite resin pieces were used as samples and divided into 9 treatment groups with different curing light distance (0 mm, 2 mm, 5 mm) and thickness (2 mm, 4 mm, 6 mm). Data were analyzed with One-Way ANOVA with a significance value of 0,000 (p<0,05). Post-Hoc Tuckey analysis with a p(<0,05) was used to determine the difference between two groups. Result: Post Hoc Tuckey analysis resulted in a significant value (p<0,05), which shows that there is a significant difference between each group and in the result show group with the thickness 2 mm and light distance 0 mm was the highest score. Conclusion: There is a comparison between curing light distance and material thickness towards surface consistency of Bulk Fill Composite Resin with thickness 2 mm and 4 mm with curing light distance 0 mm and 2 mm.
COLOR CHANGES COMPARISON OF HEAT CURED TYPE ACRYLIC RESIN IN IMMERSION OF ALKALINE PEROXIDES SOLUTION AND CELERY EXTRACT (APIUM GRAVEOLENS L.) 75% Puspitasari, Dewi; Saputera, Debby; Ayu Soraya, Imelia
Dentino Vol 2, No 1 (2017)
Publisher : FKG Unlam

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

Abstract

ABSTRACKBackground: Heat cured-type acrylic resin is the most widely used as denture base. denture base that is less clean may result in the accumulation of microorganisms. The chemical denture cleanser solution such as alkaline peroxide and 75% celery extract are able to clean and inhibits the growth of fungi and bacteria. The disadvantage of acrylic resin is water absorbing includes denture cleanser solution that may result in color change of resin. Purpose: The study is aim at measuring the color change differences of heat cured-type acrylic resin in immersion of alkaline peroxide solution and 75% celery extract (Apium graveolens L.) as denture cleanser for 5 days and 15 days. Method: The study was a true experimental research with control group design pre-test and post-test, using sample of 2mm thickness and 15mm diameters based on ADA specification no 17. Total samples were 36, divided into 6 treatment groups that is immersed in alkalin peroxide solution, 75% celery extract and aquadest for 5 and 15 days. The color change was measured using tools spectrometer,101 photo detector and microvolt digital. The statistical test was using One-way ANOVA and Post Hoc Bonferroni with <0.05 significance. Result: There is significance differences of color change acrylic resin in immersion of alkaline peroxide solution and 75% celery extract for 5 days and 15 days. Mean value of color change alkalin peroxide solution (0,48mv), aquadest (0,33mv) and celery extract 75% (1,36mv) for 5 days, alkaline peroxide solution (0,50mv), aquadest (0,39mv) and 75% celery extract (1,00mv) for 15 days. Conclusion: The immersion in 75% celery extract (Apium graveolens L.) 5 days and 15 days had greater value in color change than alkaline peroxide solution.Keywords: Heat cured type Acrylic resin, Alkaline peroxide, 75% celery extract (Apium graveolens L), Color Change.
PENGARUH ASAP ROKOK TERHADAP PERUBAHAN WARNA PADA BASIS GIGI TIRUAN RESIN TERMOPLASTIK NILON (Penelitian pada 2 Jenis resin termoplastik nilon berdasarkan suhu pembuatan 287,7° C dan 302° C) Rahmah, Riezki Amalia; Saputera, Debby; Puspitasari, Dewi
Dentino Vol 2, No 1 (2017)
Publisher : FKG Unlam

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

Abstract

ABSTRACTBackground:Loss of teeth could impact on the mastication efficiency. To overcome this problem, the patient can wore denture or prosthesis. One of thematerials to made denture base is Valplast® and Lucitone® FRS™. Denture base material was likely to absorbed various of contaminants such as tar that were contained in cigarettes. It became a factor of discoloration on denture base. Purpose: To determine whether there was a color change of the nylon thermoplastic resin after exposed to cigarette smoke. Methods:This type of research was true experimental with post-test only and control design, the number of samples that used were 24 pieces consisting of four groups, two of them were Valplast®, one group exposed to smoke and others were not exposed to smoke and the other two groups were Lucitone® FRS™, one group were exposed to smoke and others were not exposed to smoke. Result:There were significant differences between the group of Valplast® that exposed to smoke with the group of Valplast® that not exposed to smoke of 0.000 (p<0.05) and between the group of Lucitone® FRS™ that exposed to smoke with the group of Lucitone® FRS™ that not exposed to smoke of 0.000 (p<0.05) as well as between the group of Valplast® that exposed to smoke with the group of Lucitone® FRS™ that exposed to smoke of 0.000 (p<0.05).Conclusion: There were changed of color in the nylon thermoplastic resin after exposed to cigarette smoke.Keywords: Nylon thermoplastic resin, Discoloration, Cigarette smoke.