bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of the Number of Features and Muscles for an Effective Hand Motion Classifier Using Electromyography Signal
Authors: Triwiyanto Triwiyanto , Utomo Bedjo , Titisari Dyah , Ridha Mak’ruf M. , Rahmawati Triana
Published: November 2019

The essential problem in the development of a prosthetic hand based on electromyography (EMG) signal is the choice of the features and number of muscles that will be used to recognize the hand motion. A minimal number of feature and channel could reduce the cost in the development of the prosthetic hand and processing time. Therefore, it is important to obtain the correct number of feature and muscles in the system. The objective of this study is to evaluate the effectiveness of using the number of feature and muscle to recognize the hand motion for amputee person using the EMG signal. In this study, the EMG dataset was obtained from five transradial amputee persons. Ten disposable electrodes (Ag/AgCl) were placed on the residual hand with equal space between the electrodes. In order to obtain the EMG features which are related to the hand motion, each of the EMG signal was extracted using six-time domain features which are root mean square (RMS), integrated EMG (IEMG), waveform length (WL), difference absolute standard deviation value (DASDV), Wilson amplitude, and myopulse rate (MYOP). Each feature was evaluated using Decision Tree, Linear Discriminant Analysis (LDA), Support Vector Machine (SVM), K-nearest neighborhood, and Ensemble machine learning (ML). The number of class to be classified in this study was eighteen motions. The effectiveness of using the number of features and muscles was evaluated by varying the number of features and muscles. Further, the accuracy, in the discrimination of the motion, was calculated and compared among the machine learnings. The results of this study show that six muscles can effectively classify the eighteen of hand motion. The ML with WL feature has the highest accuracy among the others (81.3% based on quadratic SVM). The study suggested the effective number of muscle and feature which can be used in the prosthetics hand development so that the effective prosthetic machine can be built with a low cost in the time computing and the hardware for data acquisition.
Detection and Analysis of Delayed-Ripening Genes in the Growth of Strawberries (Fragaria × ananassa) Treated 1-Naphtaleneacetic Acid
Authors: Aristya G R , Maulina N T A , Arif M F , Kasiamdari R S , Widiastuti A
Published: November 2019

Strawberries (Fragaria spp.) are non-climatic fruits that are popular due to its good taste, fragrance and attractive colors. It contains anthocyanins and other phenolic compounds capable of preventing such diseases as cancers and heart diseases. Rapid decay of fruits is among farmers’ post-harvest problems. 1-Naphtaleneacetic acid (NAA) is a hormone known to be capable of delaying fruit ripening. Molecular studies of growth and development control genes have been carried out, including color pigment control in strawberry fruits. FaCHS and FaPYR1 are genes that play a role in fruit development, especially in ripening strawberry fruits. The purpose of the present study was to detect fruit ripeness-delaying genes in Fragaria × ananassa treated with 1-Naphtaleneacetic acid (NAA). It was conducted by inducing strawberry plants from Banyuroto, Magelang of Central Java, with 10 ppm, 30 ppm and 60 ppm of NAA. DNA was isolated from fruit using the Nucleon Phytopure Kit and then tested qualitatively and quantitatively using electrophoresis and spectrophotometry. Genes were detected using the MyTaqTM-Bioline PCR method. The phenotypic characteristics showed that there was an increase in the leaves area and stem diameter in the cultivar ‘KP Brite’ and the fruit size in the cultivar ‘Crystal’ after 10-ppm NAA treatment. Results of amplification of FaCHS DNA fragments showed FaCHS was not detected in the cultivar ‘KP Brite’ after 60-ppm NAA treatment, while FaPYR1 could only be detected in the red stage of the cultivar ‘Crystal’ after 10-ppm NAA treatment and the pink and red stages of the cultivar ‘KP Brite’ after 30-ppm NAA treatment.
Martapura river water leads to testes alteration in rats
Authors: Yuliana I , Khatimah H , Rosida L , Skripsiana N S , Suhartono E
Published: November 2019

The Martapura River is the main river in the Banjar district. Local residents use the water for life, even though the river has been polluted. This study aims to analyze changes in testicular morphometry and histology due to drinking water from the Martapura River. A total of 32 male Sprague Dawley rats were randomly divided into two groups (n = 16 per group). The control group was given aquades as drinking water. The treatment group is a group that has been drinking from the water of the Martapura River for 30 days. After euthanasia, the testes were processed and stained with hematoxylin-eosin. Testicular size, number of seminiferous tubules, spermatogonia cells, primary spermatocyte cells, and Leydig cells were analyzed microscopically. Martapura river water significantly induces testicular enlargement (p = 0.0036). In addition, there was a decrease in the number of seminiferous tubules (p < 0.001), spermatogonia cells (p = 0.002), primary spermatocytes cells (p < 0.001), and Leydig cells (p < 0.001) significantly compared to the control group. We conclude that drinking the water from the Martapura River triggers changes in morphometry and histological structure of the testis so that it can disrupt male reproductive function.
Phytoconstituents Investigation on the Ethanolic Extract of Azadirachta indica var. Indonesian and Philippines
Authors: Raissa R , Safitri A , Beltran M A G , Aulanni’am A
Published: November 2019

In the present study, phytochemical screening of ethanolic extracts of Azadirachta indica leaves from Indonesia and the Philippines revealed the presence of different phytoconstituents. Preliminary qualitative chemical test, TLC and LC-MS were used. TLC for all the extracts showed bands in long UV 366 for presence of flavonoid, tannin, saponin, terpenoid. As a result of LC-MS analysis of ethanolic extract Azadirachta indica leaves from Indonesia and Philippines, 10 compounds from Indonesian varian and 7 compounds from the Philippines varian were detected using m/z value. In conclusion, phytochemical screening based on TLC and LC-MS/MS show diverse bioactive compounds in ethanolic extract Azadirachta indica leaves from Indonesia and the Philippines. These can be effective approach for selecting best quality of varian leaves and planting area.
The antibacterial activities of bacteriocin Pediococcus acidilactici of breast milk isolate to against methicillin-resistant Staphylococcus aureus
Authors: Lestari S D , Sadiq A L O , Safitri W A , Dewi S S , Prastiyanto M E
Published: November 2019

Resistance has occurred if an antibiotic cannot kill pathogenic bacteria therefore an antibiotic therapeutic effect cannot be achieved. Broad and free use of antibiotics effected in health problems, one of the health problems is bacteria are experienced the resistance such as Methicillin-Resistant Staphylococcus aureus (MRSA). Therefore an antibiotic alternative is needed from natural ingredients have the potential as anti-MRSA such as bacteriocin. This research was conducted to determine the antibacterial activity of bacteriocin from Pediococcus acidilactici of breast milk isolate (ASI) against MRSA. Bacteriocin isolation was carried out by growing of P.acidilactici on the media of Rogosa Sharpe (MRS) broth. Antibacterial activity test was carried out by diffusion method are to see the inhibition zone and dilution to determine the value of Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). The test results shown that bacteriocin P.acidilactici strains A11 and C12 strains had antibacterial activity against MRSA. The A11 strain inhibition zone is 15 mm, MIC and MBC values are 25%. While the C12 strain inhibition zone produced 18 mm, the value of MIC and MBC was 12.5%.
Molecular Docking Study from Lunacridine, Scopoletin and Skimmianine as Antidiabetes through α-Glucosidase Inhibitor
Authors: Adriani  , Noorhamdani  , Winarsih S , Ardyati T
Published: November 2019

Diabetes is a metabolic syndrome disease characterized by hyperglycemia in patients. The use of medicinal plants for the treatment of diabetes can control blood levels because it contains anti-diabetic active substances. The medicinal plant as an anti-diabetic through inhibition of the α-glucosidase enzyme thereby reducing the absorption of glucose in the small intestine. Lunacridine, skimmianine and scopoletin are found in the Rutaceae family but there is no information about them as α-glucosidase inhibitors. The purpose of the study to determine the ability of lunacridine, skimmianine and scopoletin as inhibitors of α-glucosidase enzymes based on docking molecular studies. The research method is ligand and receptor preparation using Pymol and docking. The docking process uses Autodoct vina in Pyrx and using acarbose as controls. The docking results are visualized using Ligplot and Discovery studio software. The results showed that lunacridine, skimmianine, scopoletin interacted with α-glucosidase and various binding affinity value. The lunacridine binding affinity is close to the acarbose control and can cross cell membranes based on Lipinski rules. Lunacridine has an anti-diabetic ability through inhibition of α-glucosidase enzyme with the inhibitory value close to acarbose control.
The Effect of Topical Toman Fish (Channa micropeltes) Extract on Macrophages and Lymphocytes in Diabetes Mellitus Wound Healing
Authors: Carabelly A N , Firdaus I W A K , Nurmardina P C , Putri D A , Apriasari M L
Published: November 2019

Oral administration of Toman fish extract is proven to accelerate wound healing in rat model of Diabetes Mellitus. Toman fish extract contains albumin which may elevate antioxidant level and reduce inflammation. These changes will later enhance cell proliferation and inflammatory cell activity in wound healing process. This study was aimed to determine the topical application effect of 20% toman fish extract on macrophages and lymphocytes in Diabetes Mellitus wound healing. It was an experimental research using post-test only with control group design. This study was performed on 36 diabetic male wistar rats which was comprised of negative control group without given any treatment, 20% Toman fish extract ointment group and 10% Haruan fish (Channa striata) extract ointment group. Rats were sacrificed on day 4, 8, and 14 to investigate wounded area with biopsy technique which later obtained histological preparation using Haematoxylin-Eosin staining. The preparation was then observed using microscope to count macrophages and lymphocytes number. One-Way ANOVA test demonstrated a significant difference in macrophage number on day 4 (p=0.002), day 8 (p=0.000), day 14 (p=0.000). The result of the test also indicated a significant difference in lymphocyte number on day 4 (p=0.001), day 8 (p=0.001), and day 14 (p=0.001). Furthermore, Post Hoc LSD test resulted in a significant difference (p<0.05) of macrophage and lymphocyte in day four, eight, and fourteen among all treatment groups. Toman fish extract ointment at 20% concentration for topical application may raise the number of macrophage and lymphocyte than those of negative control and 10% haruan fish extract ointment on day 4 and 8 with gradual decrease on day 14.
The preventive effect of activated charcoal on HDL levels and aorta histopathological profiles in hypercholesterol rat models
Authors: Roosdiana A , Vidiastuti D , Herenda H
Published: November 2019

Hypercholesterolemia is a condition which the cholesterol levels in the blood exceeds the normal value. The use of hypercholesterolemia drugs or synthetic drugs in a long term will cause severe side effects. Therefore, it is important to explore an alternative preventive agent of hypercholesterolemia derived from natural materials, such as activated charcoal. The activated charcoal can absorb substances thousands times of its own weight and might be an effective and non-toxic material. The research aimed to determine the preventive effect of activated charcoal towards HDL level and aorta’s histopathology. This experiment used 24 male rats in randomized design that were divided into six groups: negative control (1); positive control (2), and four groups of treatments with activated charcoal doses of 2.250 mg/kg BW (3), 4.950 mg/kg BW (4), 6.750 mg/kg BW (5) 4.950 mg/kg BW (6), respectively, for 14 days. Simultaneously, all groups were received high cholesterol diet except group 1 and group 6. High Density Lipoprotein (HDL) level was measured by the spectrophotometry method and the data of HDL were analyzed using One-Way ANOVA and followed by the Tukey test (p<0.05), while aorta’s histopathology were analyzed descriptively. Therapeutic dose of 4.950 mg/kg BW (group 4) showed the best dose in increasing HDL levels by 42% compared to positive control. Activated charcoal reduced the inflammation cells and the defect of aorta’s histopathology. Based on the results, activated charcoal prevents the decreasing of HDL level and a defect of aorta’s histopathology.
Effect of fat supplementation containing high palmitic acid enriched with lecithin on quail performances
Authors: Syarif I , Hermana W , Retnani Y
Published: November 2019

The aim of this study was to observe the effect of fat supplementation containing high palmitic acid enriched with lecithin on the performances of quail starter-grower phase. This study used a completely randomized design with 330 female day old quails Coturnix Coturnix Japonica randomized and entered into 5 treatments consisted of commercial feed (T0), T0 + 2.5% fat local + 6% lecithin from added fat (T1), T0 + 2.5% fat commercial + 6% lecithin from added fat (T2), T0 + 5% fat local + 6% lecithin from added fat (T3), T0 + 5% fat commercial + 6% lecithin from added fat (T4). The results showed that fat supplementation containing high palmitic acid enriched with lecithin was not significantly different (P<0.05) on body weight, daily body weight gain at the age of 36-42 days, feed consumption, feed conversion ratio, and mortality but daily body weight gain was significantly different (P<0.05) at the age of 8-35 days. Local fat supplementation containing high palmitic acid produced a higher income over feed cost than the control treatment and fat commercial treatment. Fat supplementation containing high palmitic acid enriched with lecithin did not interfere with quail health status as a whole.
Dihydroeponemycin inhibits ubiquitin proteasome system of Plasmodium falciparum in silico
Authors: Mardhiyyah K , Arif M H , Fitri L E , Winarsih S , Chandradikusuma D , Nurseta T
Published: November 2019

Drug resistance in malaria treatment becomes major problems all over the world. Finding a novel potent antimalarial candidate is mandatory. Previous study proved that secondary metabolite of Streptomyces hygroscopicus Hygroscopicus containing eponemycin analog significantly inhibits Ubiquitin Proteasome System (UPS) of Plasmodium in vivo. The aims of this study are to know toxicity profile of dihydroeponemycin and its potency as Ubiquitin Proteasome System inhibitor of Plasmodium falciparum. The methods of this study were ADMET SAR Toxicity (ACD/LABS), Protein Modelling (SWISS), and Molecular Docking (AUTODOCK VINA PYRX). The result of Absorption, Distribution, Metabolism, Excretion and Toxicity profiles (ADMET) of dihydroeponemycin was absorbed 83.5% via intestinal route. Dihydroeponemycin belonged to Category 4 of toxicity. E3 is a potential drug target because of its different structure to that of the human. The C-score (confidence score of the prediction) of the active side E3 was 0.06 and E2 was 0.45. Dihydroeponemycin had the ability to bind to E3 and E2 with an affinity score binding of -3.8 and -4.1. The more negative the affinity binding value the easier the compound binds to the target protein. Based on this in silico study, dihydroeponemycin has potential effect as antimalaria by inhibiting Ubiquitin Proteasome System of Plasmodium falciparum.
Genomic Profile of rIR and rIRR in Type 2 Diabetes Mellitus Rat Model toward Effect of Goat Milk CSN1S2 Protein
Authors: Tambunan S H , Meidinna H N , Rohmah R N , Fatchiyah F
Published: November 2019

Diabetes mellitus is metabolic disorder with hypergycemia condition. Diabetes meilitus is commonly divided into two types, type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM). The research focus was to determine the effect of CSN1S2 protein from Etawah Crossbred goat milk on DNA sequence of rIR exon 17 and rIRR exon 2 in T2DM rat model. The experimental rats were divided into four main groups, namely control group, diabetes group, control with CSN1S2 protein treatment group, and diabetes with CSN1S2 protein treatment group. We used 375, 750 and 1500 mg/kg BW of goat milk CSN1S2 protein for the treatment. The DNA was extracted from the rat liver, then amplified with a spesific primer of rIR and rIRR genes. The results of the amplification will be sequenced by using ABI 3730xl DNA Sequencer. The CSN1S2 protein treatment in rIR gene exon 17 did not affect a specific DNA sequence alteration. The diabetic rats treated with 375, 750 and 1500 mg/kg BW of CSN1S2 protein had the nucleotide changed to normal (3950A→3950G). Therefore, the CSN1S2 protein may have the function in triggering the DNA repair system.
Anti-Inflammation Assay of Black Soybean Extract and Its Compounds on Lipopolysaccharide-Induced RAW 264.7 Cell
Authors: Widowati W , Prahastuti S , Ekayanti N L W , Munshy U Z , Kusuma H S W , Wibowo S H B , Amalia A , Widodo W S , Rizal R
Published: November 2019

Inflammation response is related with various diseases. One of the useful therapeutic method to suppress inflammatory mediator synthesis is by application of compounds isolated from herbal medicine as treatment for inflammatory diseases. The aim of this study was to analyse the anti-inflammatory activity of black soybean extract (BSE), daidzein, and genistein troughin vitroanalysis of inflammatory mediators such as prostaglandin 2 (PGE2) and cytokines interleukin 1β (IL-1β), and tumor necrosis factor α (TNF-α). Safety of samples was determined by viability test using MTS (3-(4,5-dimethylthiazol-2yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium). Concentration tested for viability assay were 40, 200, 1000 μg/mL for BSE, daidzein, and genistein. Anti-inflammation activity of samples was determined by ELISA quantification of PGE-2, TNF-α, and IL-1β in conditioned medium (CM) of supplemented pro-inflammatory activated RAW 264.7 cell. Inflammation on cells were induced by Lipopolysaccharide (LPS). BSE 1000 ug/ml, daidzein 1000 ug/ml, and genistein 1000 ug/ml treatments shows <80% cell viability average compared to control cell, indicating the treatments have cytotoxicity effect on RAW 264.7 cells. Hence, concentration used for treatments are 40 and 200 μg/mL for each sample. Genistein with concentration of 40 μg/ml treatment result shows highest anti-inflammatory activity which indicated from PGE-2, TNF-α, and IL-1β concentration. This study suggests that BSE, daidzein, and genistein with concentration of 40 and 200 μg/ml were safe to use for RAW 264.7 cell and genistein with concentration of 40 μg/ml have the best anti-inflammatory activity compared to daidzein and BSE.
Performance Analysis of Long Storage and Tidal Controlling Gate on the Flood of Kemuning River
Authors: Kustamar K , Susanawati L D , Nainggolan T H , Witjaksono A , Ajiza M
Published: November 2019

Kemuning river flood is caused by watershed (DAS) quality factor, river capacity, and tidal influence. Effort of controlling that has been done is by making reservoir in upper stream, river normalization in the urban area, and pump installation in the mouth of river. Yet those efforts are not significantly decreasing the frequency of flood. In this paper, it proposed the installation of controlling gate in the downstream of the pump location as a means of controlling, so the current can only move one direction to the downstream of the river. The gate design is planned according to the topography of the local riverbed and utilized it as a long storage. To know the effectiveness of the plan, the performance analysis of long storage and the gate on flood of Kemuning river is conducted. The result of analysis shows that the peak of maximum hydrograph discharge Q2; Q5; Q10; Q25; Q50, is (m3/second): 121.608; 192.720; 220.258; 241.605; 263.558. The combination of long storage and one direction gate cannot control the discharge of flood for two years, therefore to control flood it needs additional water reservoir and or flood pump.
Effect of particles size adsorbent of sugarcane bagasse and contact time on removal Pb(II) ions in wastewater by using vertical series column method
Authors: Umar H Z , Rahmahwati C A , Abubakar S , Samsul S
Published: November 2019

Amounts of heavy metals in wastewater can cause problems for living things and the environment. Handling efforts have been done with various methods. A relatively effective and efficient method is the adsorption. This study aims at removing Pb (II) in water using adsorbent of sugarcane bagasse with column system. The experimental design as a fixed variable consisted of 50 g of adsorbent, and 10 litres adsorbate volume, flow rate of 7 litres / minute. The independent variables consist of particle sizes with variations of 10; 20; 30 mesh and contact time with variation 0;5;10;15;20;30;60;90;120;150;180;210;240 minutes and the dependent variable of Pb(II) concentration (ppm). The results showed that the removal of Pb (II) was influenced by particle size factor of adsorbent and contact time. Universally the best removal power occurs on the size of 20 mesh adsorbent particles and with a contact time of 30 minutes. The fastest and highest removal percentage based on parameters of Pb(II) concentration for 10 mesh particles: 53.34% at contact time 180 minutes, 20 mesh particles: 54.84% at contact time 30 minutes, and 30 mesh particles: 65.67% at contact time 210 minutes.
Process of transformation dissemination radio broadcast content
Authors: Arief M
Published: November 2019

This study is motivated the development of broadcasting into a creative industry. Industries that produce ideas and ways of broadcasting of the content or information that can be consumed by the public. Packaging strategies and mechanisms broadcasting content requires creativity. This is commercialized broadcasting of creative industries. The mechanism of the presentation and delivery of content produced through the creative process that is the product of a creative industry broadcasting. Some radio in Bandung, to expand its range made a breakthrough in the use of Internet technology in the operation of the broadcast, including the use of social media in support the broadcast does. This paper is a qualitative study using case studies conducted by in-depth interviews, literature studies and observations. The validity of the research data triangulation technique was used to find out how the PRFM radio as one of the largest radio in Bandung, to broaden its reach has been doing ground breaking use of internet technology on its broadcast operations, the use of social media (Facebook) supporting broadcast. This research focuses on the transformation of the dissemination of current broadcast radio content using social media. With the presence of the new technology would allow the changes that need to be adapted to the culture and behaviour of the consumer.
Decision making system vocational high school election using promethee method
Authors: Agustina R , Dwanoko Y S , Susanto G , Kuswinardi W , Purwanto H L , Suprianto D
Published: November 2019

Vocational High School (SMK) is currently a good choice to continue Reviews their studies, programs offered by vocational schools are one of the factors of student interest, and this makes it difficult, for some parents to determine the right school for Reviews their children. Data and Information as a whole about Vocational Schools can be Obtained through the websites of each Vocational School but it is difficult, to compare them all together, because each has different achievements and advantages. Also, parents still do not know what factors are considered in choosing a vocational school and the tight competition in the world of education to determine the best for Reviews their children in accordance with Reviews their competence and parental conditions. The purpose of this study is to provide information and alternatives in the form of rankings in order to solve problems in the selection of Vocational High School so that it can help parents and the community to choose the right school for Reviews their children. The method used is Promethee as a model for making Recommendations for the selection of Vocational High School education places. The criteria used in the selection of high school vocational education places are location, facilities, number of achievements, school environment, and extracurricular activities. Results the recommendation system for selecting high school vocational education places using the Promethee method can provide information and provide alternatives to solve problems in the selection of secondary vocational schools.
Performance analysis of a standalone hybrid renewable electric generation system during fault condition
Authors: Pradipta A , Sunaryantiningsih I
Published: November 2019

There are several problems or disruptions to the hybrid system, including the availability of limited energy sources, transient conditions when some power plants or loads enter the system or out of the system and short circuit interruptions. The hybrid system used for testing includes photovoltaic system (PV), wind power generation system (WTGS), battery energy storage system (BESS) and load. The system is integrated on the DC bus. Testing for each interference condition is performed after the system is integrated. The parameters seen in this hybrid system performance analysis test are DC bus voltages and currents from each renewable plant. The results of this test will be used as data for hybrid system improvement in future research.
Development of technique to determine soil quality index for assessing soil condition
Authors: Rachman L M
Published: November 2019

An assessment of soil condition related to soil and soil use is still relies to soil type based on soil classification and land suitability class. Soil type and land suitability class cannot be used to evaluate soil condition/quality changes effectively. In many cases, soil type and land suitability class are remaining the same even there has been soil condition/quality change. Soil Quality Index (SQI) is the best solution to answer this circumstance. Two schemes proposed to determine SQI, i.e., Simple Scheme of SQI (SS-SQI) and Comprehensive Scheme of SQI (CS-SQI), both compose of few soil physical, soil chemical, and soil biology parameters with their own proportion then each soil properties are scored and finally summarized to get the total score. SS-SQI and CS-SQI consists of 13 and 20 soil properties, respectively. Field investigations supported by laboratorial analysis conducted at 48 locations in Banten Province, Indonesia. Results showed that average score of SS-SQI is similar or very close with average score of CS-SQI. The average SQI score is 4.486 and classified as slightly high. In the “numeral” form, SQI is easier, practical and much more sensitive used as a tool to monitor and evaluate change and dynamic of soil condition/quality.
New class of weak open sets via R*-interior and a decomposition of continuity
Authors: Manoharan R. , Prasanna Venkatesh L.
Published: November 2019

In this paper, some new class of sets R*I-S(X), R*I-P(X) and R*I-α(X) which are the collection of all ‘R*I-semi –open’, ‘R*I -pre-open’ and ‘R*I-α-open set’s are introduced and we analysed how the sets are related with them and examine the relationship the other similar collection of weak open sets in ideal and general topological spaces. Also we obtained an equivalent wayof representing continuous function interms of funcions which are defined using weak open sets in R*-topological spaces.
A Study on Soft s-closedsets, soft s-dense sets via Soft Ideals
Authors: Sebastian Lawrence J. , Manoharan R.
Published: November 2019

Thenotionofsoftsetsisintroducedasageneralmathematicaltool for dealing with uncertainty. In this work, we consider the concepts of soft closed set, soft dense setwere introducedinthesoftideal topologicalspace(SS(X)E, τ,
J
). Also, westudiedthe operations on this new soft s-closed and soft s-dense sets.
Mean Square Cordial Labeling on Star Related Graphs
Authors: Dhanalakshmi S , Parvathi N.
Published: November 2019

A Mean Square Cordial Labeling (MSCL) of a Graph G(V, E) with p vertices and q edges is a bijection from V to {0, 1} such that each edge uv is assigned the label

(

⌈

(
f

(
u
)

2

+
f

(
v
)

2

)
/
2

⌉

)

where ⌈x⌉ (ceil( x)) is the least integer greater than or equal to x with the condition that the number of vertices labeled with 0 and the number of vertices labeled with 1 differ by at most 1 and the number of edges labeled with 0 and the number of edges labeled 0 and the number of edges labeled with 1 differ by at most 1. In this paper it is analyzed that some star related graphs like Bistar graph B(k, k), Subdivision of a star graph S(Sk), Coconut tree CT(k, k), Merge graph Ck*Sk,, Graph PmΘ K1, n and Banana tree BT(k, k) admits mean square cordial labeling.
A solution approach to fully fuzzy linear fractional programming problems
Authors: Loganathan T. , Ganesan K.
Published: November 2019

In this paper, we propose a method of solving the fully fuzzy linear fractional programming problems, Express all the parameters and variables are triangular fuzzy numbers. Convert all the triangular fuzzy numbers in their parametric form, we convert the fractional programming problem in to a single objective linear programming problem in parametric form. We put new fuzzy arithmetic and fuzzy ranking, we obtain the optimal solution the given fully fuzzy linear fractional programming problem without converting to its equivalent crisp linear programming problem. A numerical example is provided to illustrate the efficiency of the proposed method.
An Approach For Solving Fuzzyassignment Problem Using Branch Andbound Technique
Authors: Mohanaselvi S. , Jayashree V.
Published: November 2019

This paper aims to obtain a minimum fuzzy assignment cost for a fuzzy assignment problem by using fuzzy branch and bound technique. Without transforming the fuzzy assignment problem into a corresponding crisp assignment problem a solution procedure to assign different resources to different activities is proposed to attain the fuzzy optimal cost. In this paper for comparing fuzzy numbers a ranking function in terms of parametric form is used. To showcase the proposed method an example is discussed and a comparison is made with a existing method.
Fixed Point Theorem in Fuzzy Automata Normed Linear Space
Authors: Karpagavalli S. , Visalakshi V.
Published: November 2019

The main purpose of this paper is to study the existence of a fixed point in fuzzy automata normed linear space. In particular, fixed point for a self map on compact fuzzy automata normed linear space has been established.
Decision Makers Prference Solution for A Fuzzy Multi Objective Assignment Problem
Authors: Divya B. , Ganesan K.
Published: November 2019

In this paper we propose a novel approach for the solution of fuzzy multi objective assignment problem whose parameters are expressed as triangular fuzzy numbers. We apply arithmetic operations and ranking in the parametric form of triangular fuzzy numbers to solve fuzzy multi objective assignment problem without converting to classical form. The proposed method gives flexibility to the decision maker to his/her preferred fuzzy optimal solution. A numerical example is also given based on this novel method.
Global ocean primary production trends in the modern ocean color satellite record (1998–2015)
Authors: Gregg Watson W , Rousseaux Cecile S
Published: November 2019

Ocean primary production (PP), representing the uptake of inorganic carbon through photosynthesis, supports marine life and affects carbon exchange with the atmosphere. It is difficult to ascertain its magnitude, variability, and trends due to our inability to measure it directly at large scales. Yet it is paramount for understanding changes in marine health, fisheries, and the global carbon cycle. Using assimilation of ocean color satellite data into an ocean biogeochemical model, we estimate that global net ocean PP has experienced a small but significant decline −0.8 PgC y−1 (−2.1%) decade−1 (P < 0.05) in the 18-year satellite record from 1998 to 2015. This decline is associated with shallowing surface mixed layer depth (−2.4% decade−1) and decreasing nitrate concentrations (−3.2% decade−1). Relative contributions to PP by various types of ocean phytoplankton have changed, with decreases in production by intermediate-sized phytoplankton represented by chlorophytes (−14.3% decade−1). This is partially compensated by increases from the unique, more nutrient-efficient, coccolithophores (8.4% decade−1). Geographically, the North and Equatorial Indian Oceans are responsible for much of the decline in PP, falling 0.16 and 0.69 PgC y−1 decade−1, respectively. Reduced production by large, fast-growing diatoms along with chlorophytes characterizes the decline here. In contrast, increases in PP are found in the North and North Central Pacific. The increases here are led by chlorophytes in the North Pacific and the small cyanobacteria in the North Central Pacific. These results suggest that the multi-decadal satellite observational record, coupled with an underlying representation of marine biodiversity in a model, can monitor the uptake of carbon by phytoplankton and that changes, although small, are occurring in the global oceans.
Climate change impact on energy demand in building-urban-atmosphere simulations through the 21st century
Authors: Lipson Mathew J , Thatcher Marcus , Hart Melissa A , Pitman Andrew
Published: November 2019

Social, technological and climatic changes will transform the way energy is consumed over the 21st century, with important implications for energy networks and greenhouse gas emissions. Here, we develop a method to efficiently explore climate-energy interactions under various scenarios of climate, urban infrastructure and technological change. We couple the Urban Climate and Energy Model with the Conformal Cubic Atmospheric Model as a full-height single column driven with a series of global climate model simulations in an ensemble approach. The framework is evaluated against observations, then a series of century-scale simulations are undertaken to examine projected climate change impacts on electricity and gas demand in the temperate/ oceanic climate of Melbourne, Australia. With air-conditioning ownership remaining at early 21st century levels, and in the absence of other changes, climate change under radiative forcing RCP 8.5 increases peak electricity demand by 10%, and decreases peak gas demand by 22% between 2000 and 2100. However, if projected increases in air-conditioning ownership are considered, peak electricity demand increases by 84%, surpassing peak gas demand in the second half of the century. These findings highlight the complex nature of changes facing energy networks. Changes will be location and scenario dependent.
The screening of bioactive compound of the green algae Halimeda macroloba (Decaisne, 1841) as an antioxidant agent from Banyak Island Aceh Singkil
Authors: Gazali M , Nurjanah  , Zamani N P
Published: November 2019

Banyak Island is one of the outest island in western Indonesia which high biodiversity particularly macroalgae. One of the macroalgae which have potential food and herbal drug was Halimeda macroloba. The aim of this study was to screen the bioactive compound of the H. macroloba as antioxidant source. The sampling of H. macroloba were located at the coast of Banyak Island, Aceh Singkil. The reseach stages including the chemical composition, extraction, phytochemical screening, the antioxidant assays (DPPH, CUPRAC and FRAP). The result showed the highest rendement content was obtained from ethanol extract as much as 2.32%. Subsequently, the extract of the H. macroloba detected phenol compound. The antioxidant activity with 2,2-diphenyl-1-picrylhydrazyl (DPPH) method were obtained IC50 121. 445 ± 1.03 mg/L, the n-hexane extract have IC50 181.945 ± 1.95 mg/L and ethyl acetate extract of IC50 228.67 mg/L. The antioxidant with ferric reducing antioxidant power (FRAP) method showed that the ethanol extract possesses the value of antioxidant capacity was 516.50±0.70 μmol trolox/g extract, ethyl acetate extract value was 482.00±1.41 μmol trolox/g extract and n-hexane extract was 323.50±0.70 μmol trolox/g extract. While, the CUPRAC (cupric ion reducing antioxidant capacity) with ethanol extract was 159.85 ±0.70 μmol trolox/g extract, ethyl acetate extract was 66.38±0.03 μmol trolox/g extract and n-hexane extract was 49.15 ±0.035 μmol trolox/g extract. The results from three methods of antioxidant showed the ethanol extract possesses high antioxidant capacity. Therefore, this research give fruitfull information regarding the potential green alga H. macroloba as new antioxidant sources for human health.
Social structure of seaweed farmers in border areas: cases in seaweed farmers in Nunukan Island
Authors: Shafitri N , Zulham A , Muawanah U
Published: November 2019

Seaweed is one of the commodities of the high economic value of the marine and fisheries sector in the district of Nunukan and it has been well developed. This business has formed a new social structure consisting of capital owners or traders and producers. This research aims to analyze the activity patterns of seaweed farming and the construction of social structures in seaweed farming communities. In-depth interviews were conducted in April 2018 interviewing a total of 83 respondents in Nunukan Island. We analyzed the pattern of seaweed business activities Production on input ownership; Source of acquisition of seaweed business assets; the source of asset capital. We also find that most of seaweed cultivation business based on farmer’s capital and by themselves. However, they use labor for pre-production and post-production from workers in the villages and during production, fewer workers are needed. Furthermore, the social structure of the community in the seaweed business on Nunukan Island can be grouped into 4 levels. namely seaweed wholesaler (1st level); peluncur/small seaweed traders (2nd level), seaweed farmers (3rd level) and seaweed workers (4th level).
Numerical study of M2 tide on the Gulf of Thailand
Authors: Anwar K , Haditiar Y , Ikhwan M , Wafdan R , Setiawan I , Marwan  , Muchlisin Z A , Rizal S
Published: November 2019

According to the previous study, M2 from SCS amplified around the coastal region but almost low in the Gulf of Thailand (hereafter GoT). To detect the M2 at the shallow part of GoT, we used the 2D numerical model simulation. The model was driven by M2 amplitude and phase from a high-resolution spatial data provided by the Geospatial Indonesia Agency. M2 model was well verified with the recent studies and assimilation data. We showed the amphridomic point around southeastern of GoT around 103.5 E and 8.5-8.6 N. The amphridomic point has clockwise direction. We also showed a virtual amphridomic point at the east of GoT (100 E and 11.5-12 N). The M2 amplitude was highest in the Bangkok Bay. The study showed an important of the high-resolution model simulation on the GoT tides.
Analysis of food habits and length-weight relationships (LWRs) of java barb (Barbonymus gonionotus Bleeker) in Reubee River, Pidie, Aceh
Authors: Nurfadillah N , Desrita D , Phonna B A , Defira C N
Published: November 2019

The purpose of this study was to examine the food habits and length-weight relationship of java barb (BarbonymusgonionotusBleeker) in Reubeeriver, Pidie. This study was conducted in August – September 2017. Ten samples fish were collected using purposive sampling method from the fishermen's landing sites along Reubeeriver. The digestive tract investigation showed that as many as 8 from 10 total fish sample were filled by food. Then, the food wasexamined and resulted in 6 types: moss liver (Antheceroptopsida sp.), bamboo roots pentung (Dendrocalamusasper), bilis fish (Mystacoleucus sp.), fig leaf (Ficusracemosa), jerbung shrimp (Penaeusmerguiensis), and worms (Lumbricusrubellus). The highest percentage of occurrence frequency and index of propenderence found on Moss respectively 100% and 57%, while the highest percentage of volumetric value obtained on shrimp (35%). The analysis of food habits indicated that Java barb (Barbonymusgonionotus) in Reubee River is a group of omnivores that tend to be herbivorous fish with a ratio of 3:1 gut length. The result of calculation of lenght-weight relationship on 50 fish samples depicted an average of 127.42 mm with an average weight of 56.46 grams. While the result of growth pattern calculation was allometrik negative with b value equal to 0.938 which means long growth was faster than weight fish body. The condition factor gave a normal pattern with a value of 107.16.
Effects of probiotics (rabal) with different doses on the survival, feed conversion, and growth of giant prawns (Macrobrachium rosenbergii)
Authors: Dachi A L , Muhammadar A A , Sahidhir I , Putra D F , Irwan Z A
Published: November 2019

This study aims to determine the effect of the best RABAL probiotic dose on the media for the maintenance of giant shrimp larvae(Macrobrachium rosenbergii)on the survival, feed conversion, and growth. This research was conducted from March to April 2019 at Brackish Water Aquaculture(Balai Perikanan Budidaya Air Payau, BPBAP) Ujung Batee, Aceh Besar district, Province of Aceh. This study used a Completely Randomized Design (CRD) with 4 levels of treatments and 4 repetitions. The treatments used of RABAL with a dose (A) 0 ppm, (B) 75 ppm, (C) 150 ppm, and (D) 225 ppm. The frequency of administration of RABAL was once a day. The giant prawn larvae used was a larvae stage with an average weight of 0.05 g/larvae. Based on the result of ANOVA test the best value was obtained a treatment D (225 ppm) with absolute weight growth value of 0.16 g ± 0.003, absolute growth length of 1.30 cm ± 0.053, specific growth rate 5.08 ± 0.043, survival rate 96.25 ± 4.787 and feed conversion ratio 0.83 ± 0.013, respectively. The result of this research showed that the administration of RABAL with different doses into maintenance media had a significant effect (P<0.05) on the growth and feed conversion ratio of giant shrimp larvae but did not significant influence (P>0.05) on the survival rate of giant shrimp larvae.
Dietary administration of sea grape powder (Caulerpa lentillifera) effects on growth and survival rate of black tiger shrimp (Penaeus monodon)
Authors: Putra D F , Rahmawati M , Abidin M Z , Ramlan R
Published: November 2019

The objective of the study was to determine the dietary administration effect of sea grape powder(Caulerpa lentillifera)in the diet on the growth performance and survival rate of black tiger shrimp(Penaeus monodon).Two hundred forty shrimps (PL 15) averaging 0.0020 g were randomly distributed into 24 of 10 l tanks. The 10, 20, 30, 40 and 50 g/kg of sea grape powder was supplemented into six formulated feed. The result showed that the application of the sea grape(Caulerpa lentillifera)meal in the diet gave a significant effect on the weight gain, specific growth rate, daily growth rate, absolute length, feed conversion ratio, and feed utilization efficiency, but no significant effect on survival rate. The optimum weight gain, specific growth rate, daily growth rate, absolute length, feed conversion ratio and feed utilization efficiency were found at treatment D (30 g/kg diet) with the values were 0.20 gram, 7, 86% /day, 0.003 g/day, 26.6 mm, 0.81 and 123.84% respectively. Based on these result, it is concluded that the recommended level of sea grape powder dietary level(Caulerpa lentillifera)in shrimp feed(Penaeus monodon)was 30 g/kg.
The suitability of land analysis to prepared mangrove rehabilitation in Kuala Langsa, Indonesia
Authors: Ruzanna A , Dewiyanti I , Yuni S M , Purnawan S , Setiawan I
Published: November 2019

The purpose of this research wasto understand the ecological parameters, which of salinity (%o), intertidal fluctuation (m), substrate texture (%), pH, organicC (%), temperature (°C), the amount and varieties of mangroves, as well as to understand the suitability of the land prepared for mangrove rehabilitation efforts in Kuala Langsa, Sungai Leung and Cinta Raja Villages of Langsa City. This research was conducted using the purposive sampling method. The locations of the observation were determined based on the minor and severe damages criterion of the mangrove. The mangrove land suitability data analysis was conducted using the scoring and weighting method. The results showed that in station 1 the mangrove criterion was severe damage and categorized as suitable with a suitability value of 74%, in station 2 the mangrove criterion was minor damage and categorized as very suitable with a suitability value of 80%, in station 3 the mangrove criterion was severe damage and categorized as very suitable with a suitability value of 82.5%, in station 4 the mangrove criterion was minor damage and categorized as very suitable with a suitability value of 80%, in station 5 the mangrove criterion was severe damage and categorized as very suitable with a suitability value of 76.5%, and in station 6 the mangrove criterion was minor damage and categorized as very suitable with a suitability value of 80%. The location of mangroves with a damaged criterion, which includes minor and severe damages, no serious ecological condition change could be detected hence rehabilitation efforts could be done at the location.
Application of surplus production model on tuna fishery in Sabang, Weh Island, Indonesia
Authors: Zainun I , Sofyan S , Fajri F , Bagio B
Published: November 2019

Production of tuna in Sabang on the last two years has decreased significantly. In 2015, for example, the number of tuna production was 6,124 tons per week, while in 2017 it fell to 5,200 tons per week, or decreased by around 15 percent. This study aimed to analyze the amount of biomass, catch, and effort of tuna in sustainable conditions in Sabang using a quantitative method and 11 years (2006-2016) time-series data. The data consisted of catches and inputs from each fishing gear per year during the observation period. The data were analyzed by the surplus production model that was processed using Excel and Shazam. The results showed that the sustainable and actual production function models of tuna in Sabang had trajectories with patterns that continued to increase during the observation period. The current level of production over the past few years has exceeded sustainable production, and if this condition continues, it is feared there will be overfishing and overcapacity.