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Proceeding ISETH (International Summit on Science, Technology, and Humanity)
Published by Universitas Muhammadiyah Surakarta
ISSN : 24773328     EISSN : 28077245     DOI : -
Core Subject : Health, Science, Education, Social, Engineering,
Computer Science & IT Engineering Medicine & Pharmacology Social Sciences Other
The International Summit on Science, Technology and Humanity (ISETH) is organised by Universitas Muhammadiyah Surakarta. This summit aims to provide a platform for researchers and academics to share their research findings with others and meet lecturers and researchers from other institutions and to strengthen the collaboration and networking amongst the participants.
Arjuna Subject : Umum - Umum
Articles 1,013 Documents
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White Rot Fungus (Marasmius sp.) Delignification on Sugarcane Bagasse for Bioethanol Production Darsih, Cici; Wahono, Satriyo Krido; Rosyida, Vita Taufika; Kismurtono, M.
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2015: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2355

Abstract

Sugarcane bagasse is one of the potential lignocellulose materials for alternative energy especially on the development of bioethanol, the second generation technology. This paper investigates the delignification of sugarcane bagasse by the white rot fungus (Marasmius sp.). Sugarcane bagasse was delignified by fungus; then hydrolyzed by xylane enzyme and fermented by Saccharomyces cerevisiae through simultaneous processes of saccharification and fermentation (SSF). Pretreatment of the sugarcane bagasse was conducted by fungus with various time periods of incubations for 15, 30, and 45 days. SSF of pretreated sugarcane bagasse was conducted for 3, 6, 9, 12, and 15 days. Lignin, cellulose, and hemicellulose were determined by Chesson method. Bagasse structure before and after delignification were determined by Fourier Transform Infrared (FTIR) Spectroscopy. The results showed that the best result of bagasse delignification, containing 16.04% of cellulose, 26.61% of hemicellulose, and 51.89% of cellulose, was on 15 days of incubation. The bioethanol was obtained in 3 days of incubation with bioethanol concentration of 0.85% or 0.4 g/L.
Kinetic Models for the Sorption of Methylene Blue From Aqueous Solution by Molecularly Imprinted Polymers Zulfikar, Muhammad Ali; Setiyanto, Henry
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2356

Abstract

The research examined the effect of concentration on Methylene Blue (MB) adsorption by using Molecularly Imprinted Polymer (MIP). The experimental data were analyzed by using pseudo-firstkinetic, pseudo-second-kinetic and particle diffusion models. From the experiment, it could be seen that the MB adsorption using MIP decreased with increasing dye initial concentration. The adsorption kinetic data of MB on MIP was well described by a first-second-order model, with the kinetic constants in the range of 0.037- 0.067 min-1. In addition, the results also indicated that the intra-particle diffusion was not the rate limiting step in the MB adsorption process.
Multiplatform-Based Educational Game of Islamic History in Walisongo Era Nisa, Khoirun; Sudarmilah, Endah
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2357

Abstract

Islam arrived in Indonesia through various intermediaries. One of its dissemination ways was through preaching brought by Walisongo (nine saints). When learning history, most children are bored because the textbook only contains written texts, which are less interesting for them. The purpose of this research was to develop a multiplatform-based educative game as an interactive learning media. The methodology of this research was SDLC method (System Development Life Cycle) which was derived into a stage of system systematically starting from planning, analysis, design, implementation, testing and caring. The testing of this research used the testing of black box and usability by using questionnaire for the respondents who had used the educative game. The result of this research was a learning medium in the form of an educative game built by using the multiplatform-based construct.
Edugame of Traditional Dance of Indonesia with Augmented Reality Ustia, Nurul; Sudarmilah, Endah
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2358

Abstract

Traditional dance is one of the results of culture form of dance for generations by people in Indonesia. Currently, we require new innovations to attract people and students, in recognizing the traditional dance of Indonesia. Therefore, the writer made augmented reality edugame to attract interest in learning and developing the traditional dance of Indonesia. The method used was SDLC (System Development Life Cycle) method on waterfall model. Augmented reality application on Edugame to Identify Traditional Dance of Indonesia was able to teach movement and dance information learned by the students described in this paper.
The Potency of Kitolod (Isotoma longiflora (L)Presl.) Herb Extract as a Cure for Cervical Cancer: an in Vitro Study of Hela Cells Hapsari, Atikah; Asti, Dhinar; Selviana, S; Hidayati, Ria; Kumalla, Novea; Suhendi, Andi
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2359

Abstract

Cervical cancer is the leading cause of death in women in the world. Cases of cervical cancer are the majority causes of death occurring in developing countries. The existing medicines which have a lot of functions as anticancer, however, still can damage the normal cells in our body. Cancer treatment using chemotherapy also has some side effects. The condition encourages researchers to explore anticancer cure made of natural ingredient. This research was conducted to find the potency of ethanol extract of herb kitolod (Isotoma longiflora (L) Presl.) as a cervical cancer cure to heLa cell. The method being used for the cytotoxic test on HeLa cells was MTT assay. Absorbant performed by ELISA reader at a wavelength of 595nm. Phytochemical screening which had been conducted showed a significant result that kitolod plants contain secondary metabolites compounds such as flavonoids, steroids, saponins, tannins and alkaloids. The results of cytotoxic test of the kitolod herb ethanol extract on HeLa cells by using MTT assay method acquired a value of IC50 of 227 μg/mL. This study showed that the ethanol extract of the herb kitolod had the potency to inhibit cervical cancer cells (HeLa cells) in a moderate ability.
Antioxidant Activity of Nanoemulsion Gel of Rambutan Fruit Peel Extracts (Nephelium lappaceum L.) Using Dpph and FTC Method Muhtadi, M; Hartanto, Riyan Eko; Wikantyasning, Erindyah Retno
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2360

Abstract

Rambutan fruit peel extracts had been reported to have quite high antioxidant activity. There are several compounds classes of phenolic and flavonoid contained in Rambutan fruit peel extracts such as ellagic acid, corillagine and geraniine that are responsible for its antioxidant activity. Antioxidant compounds are commonly used in cosmetic preparations. This study was conducted to explain the antioxidant activity of rambutan fruit peel extracts in nanoemulsion gel formulation which was tested with DPPH (1.1-diphenyl-2-picrylhydrazyl) and FTC (Ferric Thiosyanate) method. A method of DPPH was done by making 5 series of concentration and read as absorbance at λ max by using spectrophotometer UV-Vis and for the method of FTC, it was read as absorbance at λ 500 nm. The result of absorbance could be used to determine the value of IC50 (DPPH method) and inhibition percent (FTC method). The result of the study using DPPH method obtained the IC50 values of nanoemulsion gel of Rambutan fruit peel extracts in the amount of 9.32 ± 0.06 mg/mL, which was higher than X® Sunscreen Gel and vitamin E with IC50 value of 40.41 ± 0.98 mg/mL and 10.41 ± 0.05 mg/mL, respectively. The results with the FTC method obtained the percent value of inhibition of 51.09 ± 0.99%, which was lower than X® Sunscreen Gel and vitamin E with percent value of inhibition of 60.07% ± 13.23% and 79.07 ± 7.62%, respectively. These results indicated that Rambutan fruit peel extracts had quite high antioxidant activity that after they were formulated into a nanoemulsion gel.
Lap Joint Carbon Steel ST 37 and Aluminum 6061 with Friction Stir Welding (FSW) Setiawan, Widia; Darmadi, Djarot B.; Suprapto, Wahyono; Soenoko, Rudy
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2361

Abstract

In this research, Aluminum 6061 and Carbon steel ST 37 sheet were lap joined by friction stir welding. A hardened medium carbonese steel (EMS 45) was used as rotary Probe. The microstructures of the joining inter-metallic compounds were observed by scanning electron microscopy, microstructure photograph, and micro-hardness tests. The joint strength was evaluated by shear stress tests. The experiment was performed with varied length of pin probe 6, 7, and 8 mm, equal rotational speed of 2500 rpm, and welding speed (15 mm/minutes). The Inter-metallic compounds of aluminums sheet was cut off the pin probe and the mixture on the Carbon steel ST 37. Intermetallic compounds were analyzed on its micro sructure in this region aluminum and carbon steel mixed, the value joint tensile shear 6.2KN.
Comparison of Fracture Resistance between Prefabricated and Fabricated Fiber Reinforced Post Systems on Different Post Canal Width Widyastuti, Noor hafida; Hadriyanto, Wignyo; Mulyawati, Ema
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2362

Abstract

Background: Endodontic treated teeth are more susceptible to fracture. Correct restoration can minimize fracture risk, for example crown and post-core systems. Based on its manufacturing, Fiber Reinforced Composite (FRC) Post was divided into prefabricated and fabricated. The objective of this study was to evaluate the differences of fracture resistance between Prefabricated and Fabricated FRC Post systems on different post canal width. Method: The samples of this study were 28 premolars that were cut with 15 mm in length. The samples were treated with conventional endodontic method using gutta percha and resin sealer. The samples were divided into two groups and two sub-groups. The first two group was based on canal width consisting of 14 teeth each group with two different canal width (1.4 mm and 2.1 mm). Then, the first group was divided again into two subgroups based on the dowel use (Prefabricated post and Fabricated Post). Universal Testing machine was used to test the samples resistance. Result: This research showed that there were differences in fracture resistance on different post canal width. However, there were no fracture resistance differences between prefabricated post and fabricated post.
Role of TNF-α in Diabetic Ulcer Healing Process Rosyid, Fahrun Nur
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2363

Abstract

One of the long-term complications of diabetes mellitus is diabetic ulcers (15%) and 85% of the cases are the cause of amputation on patients with diabetes mellitus. Diabetic foot ulcers increase apoptosis and decrease fibroblast proliferation of fibroblasts and inflammatory reactions is elongated, this is as evidenced by the presence of neutrophil granulocytes in large quantities in the wound. Neutrophil granulocytes secrete pro-inflammatory cytokines mainly TNF-α. TNF-α is causing wound healing becomes disconnected and uncoordinated. This paper discussed the role of TNF-α in diabetic foot ulcers.
CFD Development for Multiphase Flows in HZDR Putra, Ryan Anugrah; Lucas, Dirk
Proceeding ISETH (International Summit on Science, Technology, and Humanity) 2016: Proceeding ISETH (International Conference on Science, Technology, and Humanity)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/iseth.2364

Abstract

Over the last 20 years, Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has contributed in the development of Computational Fluid Dynamics (CFD) for multiphase flows. In the CFD department, a lot of efforts have been performed to provide CFD as a reliable simulation tool for the design, optimization and safety analyses of medium and large scale applications. The tool is expected to contribute in the improvement of the efficient use of energy and resources as well as safety operation. Most of the research activities are related to gas-liquid flows covering dispersed flows, stratified flows and mixture or transition flows. The development is carried out using Euler-Euler two or multi fluid model as the basis. The paper discussed some characteristics of the CFD model development in HZDR started with “simple”, reliable experimental data for validation and stepwise and continuous improvement. The examples of each characteristic were given. The discussions covered three CFD modeling frames which had been developed in HZDR; they were iMUSIG for dispersed flows, AIAD for stratified flows and GENTOP concept for mixture or transitional flows.

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