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Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter
Published by Universitas Syiah Kuala
ISSN : -     EISSN : -     DOI : -
Core Subject : Education, Engineering,
Engineering Other
Arjuna Subject : -
Articles 402 Documents
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The impact of differences planting date against morphological characters of some wheat genotype in Berastagi of Karo District Dafni Mawar Tarigan; . Rosmayati; Chairani Hanum; Lollie A.P. Putri
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Optimal planting date is one of the important factors affecting the wheat crop. Improper planting date can lead to a drastic decrease in wheat yield. Therefore, information about the adaptation of wheat plants at planting date at a particular location will benefit farmers in determining how best to utilize the wheat plants in each production system through morphological characters. Then conducted research The Impact of Differences Planting date against Morphology Character of some Wheat Genotypes in Berastagi of Karo district to determine the most appropriate wheat genotypes grown in Berastagi at certain times growing season through morphological characters. This research was conducted at Berastagi with two planting date (planting date I = late February to early June 2012 and planting date II = late October 2012 to early February 2013), using a Randomized Block Design (RBD) non factorial using 12 wheat plant,namely 2 varieties (Selayar / K and Dewata / L) and 10 genotypes that OASIS / SKAUZ / / 4 * BCN (A); HP1744 (B); LAJ3302 / 2 * MO88 (C); RABE / 2 * MO88 (D), H-21 (E), G-21 (F), G-18 (G); MENEMEN (H); BASRIBEY (I); ALIBEY (J). Observational data were tested with analysis of variance and combined analysis.The observed morphological characters were plant height, number of spikelet spike-1, number of grainspike-1 and grain weight spike-1. The results of analysis of variance and combined analysis showed that all parameters were observed give significantly different results for each planting date.
Fungal bioconversion of old oil-palm trunks by enzymatic hydrolysis on development of alternate energy source Lee Kok Chang; Takamitsu Arai; Akihiko Kosugi; Darah Ibrahim; Panida Prawitwong; Yutaka Mori
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

The progressive depletion of fossil fuels has been causing increasing concern on rising energy consumption and environmental issues, such as greenhouse gas emission (GHG) and global warming. Due to low productivity of oil-palm tree after 20 - 25 years, the trees passed their economic age followed by the cutting-activity for replanting. Consequently, the old oil-palm trunks are one of the most abundantly available renewable resources produced, especially by Indonesia and Malaysia. We found that the felled oil palm trunk contains large quantity of sap with high concentration of free sugar contents. The oil-palm trunk residues which are the residual substances after squeezing sap will be discharged in large quantity. Composition analysis revealed that oil-palm residues mainly consisted of 73.12% holocellulose (cellulose and hemicellulose) and 24.6% of lignin. We tried the screening of filamentous fungus which can produce high-activity enzyme against oil-palm trunk residues as feedstock of bioethanol production.  A filamentous fungus, which is Penicillium rolfsii with strong activity against oil-palm trunk residues was selected for saccharification experimental study. The result showed that higher amount of sugar production was achieved comparing to the commercial enzymes (Celluclast 1.5L and Accellerase®1500) on hydrolysis of oil palm residues, which is 1 to 2-fold of higher activity. Hence, Penicillium rolfsii have attracted a great deal of interest as oil-palm residues degrader due to their superiority activity against commercial enzymes.
System identification for small scale fisheries development in Riau Province waters T. Ersti Yulika Sari
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

System identification for small scale fisheries development was designed using System Methodology. This system identification consisted of construction related Causal Loop Diagram and Input-Output Diagram. It was foundthat system approach was an effective tool in identifying an complicated system. It could provide a set of holistic information necessary for solving such intricate problem systematically. The study conclude that beside favorableincentives created by the Government, accurate information along with a synergetic network among the actors involved were the key elements to develop small scale fisheries. Accurate information were needed on business forsmall scale fisheries and industrial capacity on the effectiveness of suitable fisheries and also for the processing technology, on the quality and quantity of accessible raw materials could be on the proper product prices and finallyon the appropriateness of labor wages. The system development should also explore a control subsystem to repress trade monopoly practices, diminution in product quality, excessive payment transaction and damage of theenvironment.
Effect of Corn Extract and Solution of PEG to Increase Viability and Vigour of Sweet Corn Seed Deterioration at Different Incubation Periods Herma Julendri; . Halimursyadah; . Hasanuddin
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 2 (2015): Life Sciences
Publisher : Syiah Kuala University

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Abstract

This  study  aims  to  determine  the  combination  of  young  corn  extract  and  PEG  with  an incubation period of seed viability and vigor of the sweet corn expired. The study carried out at  the  Laboratory  of  Seed  Science  and  Technology  Faculty  of  Agriculture,  Syiah  Kuala University,  Darussalam-Banda  Aceh,  which  lasted  from  December  2012  to  July  2013. Materials used in this study is Expired sweet corn seed with 50% germination. Other materials used  are  corn  extract,  PEG  6000,  and  distilled  water.  This  research  used  Completely Randomized  Design (CRD) factorial 4 x 3,  so there are 12  combinations of treatments. Each repeated  three  times,  in  order  to  obtain  36  units  of  the  experiment.  Young  corn  extract concentration factor and solution PEG-2 bar consists of 4 levels, namely: control, 5% + - 2Ψ , 10% + - 2Ψ, and 15% + - 2Ψ. Factors incubation period consists of 3 levels : 18 hours, 24 hours,  and  30  hours.  Variables  measured  were  potential  growth,  germination,  speed  of growth,  growing  unanimity,  vigor  index  and  normal  seedling  dry  weight.  The  results  showed that the concentration of young corn extract very significant effect on the potential variables grow,  germination,  growing  simultaneity,  speed  of  growth,  vigor  index  and  normal  seedling dry  weight.  The  incubation  period  of  very  significant  effect  on  germination  variables, simultaneity  growth,  speed  of  growth  and  vigor  index.  The  incubation  period  significantly affect  the  potential  growth  and  seedling  dry  weight  normal.  There  is  a  significant  interaction between young corn extract concentration and incubation period of the vigor index variables. Control  treatment  (water)  with  an  incubation  period  of  18  hours  is  recommended  as  an alternative to improve the viability and seed vigor of sweet corn expired.
Analysis of turbulence models performance for the predictions of flow yield, efficiency, and pressure drop of a gas-solid cyclone separator Novi Sylvia; . Yunardi; Ilham Maulana; . Elwina; . Wusnah; Yazid Bindar
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 2 (2011): Engineering
Publisher : Syiah Kuala University

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Abstract

This paper presents the results obtained from the application of computational fluid dynamics (CFD) to modelling the flow field of a Lapple cyclone and to optimizing the cyclone based upon its geometrical parameters. A pre-processor software GAMBIT was employed to set up the configuration, discretisation, and boundary conditions of the cyclone.  The characteristics of the cyclone being studied was 0.2 m in diameter, receiving a gas flow rate of 0.1 m3/s with a particle mass loading of 0.01 kg/m3.  A commercial CFD code FLUENT 6.2.16 was employed to simulate the flow field and particle dynamics in the cyclone. The objective of this research was to investigate the performance of a number of turbulence models on the prediction of the flow field, collection efficiency and pressure drop in the Lapple cyclone. A number of five turbulence models under Reynolds Averaged Navier Stokes (RANS) category, including Spallart-Allmaras, standard k-ε model, RNG k-ε model, standard k-ω model, and Reynolds Stress Model (RSM) were examined in the simulation of the flow field and particle dynamics inside the cyclone. A validation of all calculation was performed by comparing the predicted results in terms of axial and tangential velocities, efficiency and pressure drop against experimental data of a Lapple cyclone taken from literature. The results of the investigation show that out of five turbulence models being tested, the RSM presented the best predicted results. The predictions of axial and tangential velocities as well as cyclone efficiency by this model are in excellent agreement with the experimental data.  Although the pressure drop in the cyclone is under-predicted, the RSM predictions are far better than those of other model. Other turbulence models are over-predicted and under-predicted the axial and tangential velocity, respectively.  With respect to efficiency and pressure drop of the cyclone, other models are capable of following the trend of the experimental data but they failed to agree with the experimental values.  These results suggest that the RSM is the most suitable turbulence model to represent the flow field and particle dynamics inside a cyclone gas-solid separator.
The relationship between maternal anemia of a term pregnancy and neonatal asphyxia in Banda Aceh . Nurjannah; . Munawar; Arie Prasetyowati
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Maternal anemia is a common problem in pregnancy which causes maternal and fetal oxygen transport disrupted. The disorder may lead to hypoxia of the fetus inside the womb resulting in neonatal asphyxia which is the main cause of neonatal mortality on a term pregnancy. The study aimed to investigatethe relationship between maternal anemia in a term pregnancy with occurrence of neonatal asphyxia Banda Aceh. This is an analytic study using cross sectional design. The study population was all a term pregnant women who gave birth in Zainoel Abidin Hospital and Mother Child Hospital, Banda Aceh. Data werecollected from medical records of mothers and babies delivered from January to February 2012. Samples were taken by purposive sampling with 91 samples. Maternal (gravidarum) anemia is defined as the condition in which level of Haemoglobin (Hb) 11gr/dl and neonatal asphyxia defined as Apgar score 7 at the first or the fifth minutes. The data analyzed using chi square test (==0.05). The results showed that mother who had anemia and having baby with neonatal asphyxia was 10 (20.8%). It also showed that mothers who suffered from maternal anemia are 4.47 times more likely to have baby with neonatal asphyxia (p value= 0,023). In conclusion, pregnant women with anemia have a higher risk to deliver baby with neonatal asphyxia than those of not anemia.
Plants Polyphenols: An Alternative Source for Green Corrosion Inhibitor Mohd Jain Kassim; Tan Kang Wei
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 2 (2012): Engineering
Publisher : Syiah Kuala University

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Abstract

Corrosion inhibitors are chemical compounds when added in a smallconcentration to the corrosive environment will significantly reduced the corrosion rate of metals or its alloys. The environmental toxicity of organic and synthetic corrosion inhibitors has prompted the search for green corrosion inhibitors as they are biodegradable, do not contain heavy metals or other toxic compounds. As in addition to being environmental friendly and ecologically acceptable, plant products are inexpensive, readily available and renewable. Although substantial research has been devoted to corrosion inhibition by plantextracts, reports on the detailed mechanisms of the inhibition process and identification of the active ingredient are still scarce. Most plant extracts constitute of oxygen and nitrogen containing compounds. Most of the oxygen-containing constituents of the extracts is a hydroxy aromatic compound such as polyphenolic compound. It is postulated that a number of OH groups around the molecule lure them to form strong links with hydrogen and form complexes with metals. The complexes caused blockages of micro anodes and/or microcathodes and hence retard the subsequent dissolution of the metal. Another suggestion was through and adsorption of polyphenols to the metals due to the presence of donoracceptor interactions between the π-electrons of aromatic ring and vacant d orbital of surface metal atoms. The present paper will highlight some of Malaysian plant extracts which are potential to be used as corrosion inhibitors for mild steel in acidic media
Factor affecting student of environmental conservation concern Nur Aidar; . Rahmayani
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 3 (2013): Addendum
Publisher : Syiah Kuala University

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Abstract

This study aims to determine the factors that affect student concerns to the environment. The logistic fuction is used in this study, where 110 respondents chosen randomly. The result shown that only motivation factor is significant to influence student to awareness environmental, where as the levels of education is statically not significant. Conclusion of the study showed higher levels of education and motivation, then student is more concerned about the environment. Furthermore, if motivation increase by one percent, the probability students to awareness environment increase by 784,18 percent. Thus need to be given counseling and motivation for student to make them more concerned about the preservation of an environment
LOSE WEIGHT AND PREVENT OBESITY BY AEROBIC GYMNASTICS . Yusni
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 4, No 2 (2014): Life Sciences
Publisher : Syiah Kuala University

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Abstract

Aerobic gymnastics is a sport that is very popular in today's society, especially for those who want to lose or control body weight. But sports alone is not enough to lose weight and it must be coupled with good eating pattern settings. The problem is many of us are very difficult to control our diet and it needs to be analyzed further. This research aims to carry out an analysis of the influence of aerobic gymnastics to weight loss without diet interventions given.  The subject was 15 women, aged 20-25 years old, have a normal body weight. The intervention provided in the form of gymnastic aerobics three times a week, performed for 45-minutes practice session, and each was given for 1 month. This research was a quasi experimental research with one group pretest-posttest design. Weight measurement was done before and after aerobic gymnastics given. The results indicated that the aerobic gymnastics for 1 month losing 0.73% of body  weight, but the decline was not statistically meaningful. This showed that aerobic gymnastics for 1 month for women in the age 20-25 years has started to give response, but the duration has not been enough to lose significantly of body weight. It was concluded that in order to lose or control body weight, besides  takes aerobic gymnastics with the duration of up to 1 month, it has to accompany with  diet arrangement. This would give effect to  prevent  overweight and obesity
Isolation of gram-negative bacteria from metacarpal injury of Panthera tigris sumatrae trapped in Subulussalam, Indonesia . Darmawi; . Darniati; Zakiah Heryawati Manaf; . Syafruddin; Arman Sayuti
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 1 (2011): Life Sciences
Publisher : Syiah Kuala University

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Abstract

The present study aimed to isolate gram-negative bacteria infected metacarpal of Panthera tigris sumatrae trapped in Subulussalam, Aceh Province. Swab sample was obtained from metacarpal injury of P. tigris sumatrae. Swab sample was cultured to nutrient broth media using sterile cotton swabs or Pasteur pipettes, and incubated at 37°C temperature for 24 hours. Culture was spared on MacConkey media and incubated again at 37°C temperature for 24 hours. Determination of bacteria colony growth on the surface of MacConkey media based on shape, colour, surface, size, and viscosity (consistency). The bacteria colony stained with Gram staining, and tested biochemically.  The result showed that gram-negative bacteria such as Citrobacter sp., Proteus sp., Providencia sp., Pseudomonas sp.,and Salmonella sp. isolated from metacarpal injury of P. tigris sumatrae.

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