bluuebunny/crossref_metadata_2025_split huggingface dataset:
Coral reef’s healthy level measurement system design using digital image processing on Bunaken National Sea Park
Authors: Rindengan A J , Pinontoan B , Latumakulita L A , Mongi C E , Montolalu C E J C , Langi Y A R 
Published: August 2019

Abstract
The existence of coral reefs have been beneficial for life of living things in the sea. However, their existence todays is threaten by some factors which can be seen from its color bleaching. This means that coral reefs’ level of healthy is decreasing. This is happening in Bunaken National Sea Park North Sulawesi, which is one of tourism destinations in Indonesia. Data used on this research is 40 reef images collected randomly from 10 diving spots around Bunaken. This research will design a system to analyse coral reefs’ healthy level using digital image analysis. Reef healthy observation is accomplished based on Coral Health Chart issued by coralwatch.org. Based on the chart, RGB average is calculated using digital image processing and applying least square method to obtain formula in determining coral reefs’ healthy level. Furthermore, the 40 coral reef images collected are classified based on regression equation obtained. This system is built in computer application system. Results show that application system using digital image to determine reef healthy level can be used. Healthy level of coral reefs in Bunaken National Sea Park is 72.8184%.
Rainfall prediction using backpropagation algorithm optimized by Broyden-Fletcher-Goldfarb-Shanno algorithm
Authors: Anam S 
Published: August 2019

Abstract
An extreme climate change results in a long dry season and an extreme rainfall results the losses in various areas of life. Rainfall prediction becomes an important thing for planning in many life sectors. Many prediction methods have been proposed, such as Autoregressive Integrated Moving Average (ARIMA) and Artificial Neural Networks (ANN). ANN has some advantages compared with the ARIMA model. Backpropagation algorithm is one of the ANN which has been successfully used in various fields. However, the performance of the backpropagation algorithm depends on the architecture and the optimization method used. The standard backpropagation algorithm optimized by gradient descent method works slowly to get a small error. The Broyden–Fletcher–Goldfarb–Shanno (BFGS) algorithm works faster than gradient descent method. For this reason, this paper proposes the rainfall prediction using the backpropagation algorithm optimized by the BFGS algorithm. From the experiment results, it can be shown that the backpropagation algorithm optimized by the BFGS algorithm gives better result compared with the standard backpropagation algorithm for rainfall prediction. The big number of neuron hidden causes overfitting and the small number of neuron hidden make the worst accuracy. Choosing the right learning rate will produce better accuracy.
A novel 3-D chaotic system with line equilibrium: dynamical analysis, coexisting attractors, offset boosting control and circuit design
Authors: Sambas A , Vaidyanathan S , Zhang S , Mujiarto  , Sukono  , Mamat M , Subiyanto  
Published: August 2019

Abstract
A 3-D new chaotic system with five nonlinearities is proposed in this paper. A novel feature of our chaotic system is that there is no linear term in it. We also show that the chaotic system consists of equilibrium points on the z-axis (line equilibrium) as well as two equilibrium points on the (x, y)-plane. The dynamical properties of the new chaotic system are described in terms of phase portraits, bifurcation diagram, Lyapunov exponents, coexisting attractors, coexisting bifurcation and offset boosting control. Finally, an electronic circuit realization of the new chaotic system is presented in detail to confirm the feasibility of the theoretical chaotic model.
Determination of the status of utilization and effort of little tuna (Euthynnus affinis) caught in the North Bolaang-Mongondow waters North Sulawesi
Authors: Kekenusa J S , Rondonuwu S B , Paendong M S 
Published: August 2019

Abstract
Little tuna (Euthynnus affinis) needs tobe managed well because even as a renewable natural resources, but can undergo depletion or extinction. One of the approach inthe management of the resources is by modelling. The analysis was performed aimingto get the best estimated for the surplus production model to determine the maximum sustainable yields (MSY), utilization level, and effort level of little tuna. The data of catch and fishing effort little tuna collected from the Marine and Fisheries Service of the North Bolaang-Mongondow Regency and the North Sulawesi Province. Best Surplus Production Model, which is used to assess the potential of little tuna is Schaefer Model. Optimal effort (E

msy
) of 482 trips per year, with catchesof optimal C

msy

465.13 tons per year. The effort level for 2017 is 114.10 %, which shows the inefficiency of effort, the utilization level of 125.99 %, showing occur overfishing.
Convergence of binomial tree methods to Black Scholes model on determining stock option prices
Authors: Riaman  , Parmikanti K , Irianingsih I , Joebaedi K , Supian S 
Published: August 2019

Abstract
There are many alternative investment tools that can be used to be the choice of investors. One of them is a derivative product. Derivative products that are more widely known and traded on financial markets are options. Option is a contract or agreement between two parties to buy or sell an instrument. To minimize risk, it is necessary to determine the option price by determining the fair price of the option. This option pricing can be done by using the Binomial Tree method and the Black Scholes method. Some factors that influence options are stock prices, strike prices, maturity, volatility, and interest rates. This paper discusses the European option pricing call on the shares of Bank Central Asia (BCA) with the Binomial Tree method and the Black Scholes Method. From the results of the research, it is found that the Binomial Tree method will converge to the Black Scholes method if the time partition increases.
Book embedding of 3-crossing-critical graphs with rational average degree between 3.5 and 4
Authors: Pinontoan B , Titaley J , Montolalu C E J C 
Published: August 2019

Abstract
We consider the graphs P(m, n) with average degree between 3.5 and 4, made up of m identical pieces together with n identical pieces glued together in a circular fashion, such that in any drawing of P(m, n) on the plane, there are exactly three pairwise edges crossings, and when deleting any edge of the graph, the number of crossings of the remaining graph decreases. We then embed P(m, n) into a book such that the vertices are put on a line called the spine and the edges are put on half-planes called the pages, which have the spine as their common boundary, without crossings. In this paper, we show that the minimal number of pages needed to embed P(m, n) into a book is three.
On model of supply chain using max-plus algebra
Authors: Putra D P W 
Published: August 2019

Abstract
Supply chain scheduling is used to manage the stability of the distribution of a commodity. In this paper, we will discuss the modelling of rice commodity supply chains using max-plus algebra. The rice distribution system data was obtained from the Yogyakarta Regional Logistics Bureau (Bulog) and its subsidiary company PT JPL. We get the supply chain model in the form of a matrix over max-plus algebra.
2-cut splicing and 4-cut splicing on DNA molecule
Authors: Aisah I , Jayanti P R E , Supriatna A K 
Published: August 2019

Abstract
Graph has many applications both in mathematics and various other disciplines especially to describe model problem. Graph can be used to describe the process of splicing system in DNA molecule. Splicing system is a mathematical model of the system in the action of restriction enzyme in DNA molecule. Splicing language is a language constructed by splicing system. In this paper we discussed about 2 cut splicing and 4 cut splicing on DNA molecule. It had been recognized that at the time of splicing, the graph takes the semi graph structure and it generates the words which leads to the Parikh concepts. Since a DNA which consist of (A, C,G,T) can be seen as a word, thus the modelling can be done within the framework of formal language theory. After the splicing process, the main element of the DNA molecule is mapped into the binary alphabet (a,b). The language formed from the binary alphabet is mapped into a matrix form.
Inhibition of interleukin-8 production in interleukin-1 stimulated human monocytic THP-1 cells by N,N didesmethylgrossularine-1 obtained from an Ascidian Polycarpa aurata collected in North Sulawesi
Authors: Sumilat D A , Oda T , Wewengkang D S , Namikoshi M , Yamazaki H 
Published: August 2019

AbstractN,N-Didesmethylgrossularine-1 (DDMG-1) has a rare β-carboline structure and was isolated from an Indonesian ascidianPolycarpa aurataas an active component against tumor necrosis factor (TNF)α production in lipopolysaccharine (LPS)-stimulated murine macrophase-like RAW 264.7 cells as reported in our previous paper. Further investigation on the inhibitory activity of DDMG-1 against the production of inflammatory cytokines in human monocytic THP-1 cells, we found that DDMG-1 reduced the excess production of IL-8 in LPS- stimulated THP-1 cells through inhibition of the mRNA level of IL-8 1κB-α degradation, and binding of NF-xfi to the target DNA site. The THP-1 cells used in this study showed the high production of IL-8 by the stimulation with TNF-α, IL-1β, and 12-O-tetradecanoylphorbol-13-acetate (PMA) as similar to LPS. DDMG-1 inhibited the IL-8 production in IL-1β-stimulated THP-1 cells but did not show an inhibitory activity in the cells stimulated by TNF-α and PMA. Therefore, DDMG-1 was specific to the IL-1β signalling pathway. These results suggested that DDMG-1 could be a useful drug candidate lead compound to control the excess production of IL-8.
Antihyperglicemic capacity of basil (Ocimum basilicum L.) leaves extracts coated with the marine fish scales derived nanochitosan
Authors: Rumengan I F M , Mandey L , Citraningtiyas G , Luntungan A H 
Published: August 2019

Abstract
Basil (Ocimum basillicum L.) is well-known as a medicinal plant and culinary herb because of its phytochemical contents. Crude extracts of basil leaves are of particular interest for health benefits, including in reducing blood glucose level. Nanochitosan is potentially applied to increase the efficacy of phytopharmaceuticals due to its low viscosity that easily absorbed by the tissues. This study was conducted to evaluate the antihyperglicemic capacity of basil leaf extracts when coated with nanochitosan. Nanochitosan was prepared from the parrot fish (Scarus sp) scales derived Chitosan by using the gelatin ionic method. Both chitosan and nanochitosan were characterized by Fourier Transform Infrared Spectroscopy (FTIR), SEM, particle sizing and heavy metals analyses. Extraction of basil leaves were performed by a maceration method using ethanol 96% and the extract was evaporated. Nanochitosan was then applied as coatings of the extracts, and the nanochitosan coated extract was separated from the solution by centrifugation. In vivo assay was applied using 24 male rats, which divided into extract treated groups and the control groups. All the animals were fasted for 12 h, but were allowed free access to water, before commencement of the experiments. Hyperglycemia condition was induced by a single intraperitoneal dose of 120 mg/kg. The rats were fasted for 12 h and blood was taken from the tail artery of the rats. The extract of basil leaves at the dose of 400, 800, 1000 mg/kgBW significantly lowered blood glucose level (P<0,05) of rat in hyperglycemic after 5 hours of extract administration. The efficacy of antihypeglicemic dose of basil leaves extracts coated with nanochitosan was found to be 400 mg/kgBW. Based on the result of the study, it is suggested that nanochitosan could increase the efficacy of phytopharmaceuticals.
Growth response of rotifers on a bacterial-based diet made from fishwastes
Authors: Wullur S , Ginting E L , Waraow V , Rumengan I F M , Ogello E O , Hagiwara A 
Published: August 2019

Abstract
Fishwastes are potential low-cost diet sources for replacing microalgae, which is the popular diet for rotifers. Growth responses of rotifer were tested under different weights of the diet (i.e. 0.05, 0.1, 0.2 and 0.4 g/L), different culture containers (i.e. using small tall (ST), small-short (SS), medium-tall (MT) and large-short (LS) containers), different initial densities of the rotifer (i.e. 10, 50 and 200 rotifers/mL) and mass cultured trials for 15 and 30 days. Population densities of rotifers increased significantly (ANOVA, p=0.001) when providing 0.1 to 0.4 gr/L than those fed 0.05 gr/L of the diet (Tukey HSD test, p<0.05). The densities also were significantly higher (ANOVA, p=0.001) when cultured using larger containers (LS and MT) than using smaller containers (ST, SS) (Tukey HSD test, p<0.05), but it was not significant when inoculated at different initial densities (ANOVA, p>0.05). The rotifers were successfully mass cultured for 30 days and were successfully harvested for 7 times at densities of about 2500 to 3300 ind./mL.
Supplier evaluation and order allocation using fuzzy analytical hierarchy process and augmented epsilon constraint methods
Authors: Farizal  , Dewi R M , Gabriel D S 
Published: August 2019

Abstract
Environmental issues nowadays affect the way to run business. These issues push firms to have effective and efficient green supply chain management. One of critical aspect in green supply chain management is green supplier selection. Choosing suitable supplier is an important part in procurement activity. Almost 70% of the total production cost is derived from raw material purchasing cost. This research proposes two phase meta-model for supplier selection and order allocation that takes into consideration environmental criteria besides traditional criteria such as quality, cost and delivery. For the purpose, fuzzy set and analytical hierarchical process (AHP) were combined. AHP was used to allow uncertainties and vagueness due to human decision making and subjective criteria. For order allocation phase, multi-objective mathematical programming method (MOMP), the augmented ε-constraint (AUGMECON) method was used to find Pareto optimal solutions for multiple sourcing. These proposed methods were tested in one of tire manufacturing company in Indonesia. The results show that the methods gave a 0.16% of the total cost lower than the existing one as addition to fulfilling green criteria.
Chemical characteristics of tuna fish bakasang
Authors: Fatimah F , Pelealu J J , Gugule S , Korompot A R H , Monintja V W , Tallei T E , Rorong J A 
Published: August 2019

Abstract
Fish viscera are wastes produced by fish processing that have high potential as sources of biomolecules such as proteins and lipids. One of the fermented products in Indonesia that uses fish viscera as its raw material is bakasang. This study aims to determine the content the chemical characteristics of bakasang made from Tuna fish viscera under various fermentation condition. The chemical characteristics assessed included free fatty acid (FFA), peroxide value (PV), and thiobarbituric acid (TBA, which is expressed in malondialdehyde/MDA) of the bakasang product. Tuna (Thunnus sp.) fish viscera were fermented under the following conditions: temperature 50 and 70°C, for 10 and 15 days with the addition of 20 and 30%. The results showed that tuna fish bakasang processed at a temperature of 50-70°C with salt content of 20-30%, had the following chemical characteristics: FFA = 3.84.4%, PV = 2.8-10.5%, MDA = 0.35-1.15 g / 100g sample. These results indicated that bakasang tuna fish processed under the above conditions have good chemical characteristics.
The potency of drug reconciliation need on elderly diabetic patient at Kandou Hospital Manado
Authors: Citraningtyas G , Wiyono W I , Lolo W A 
Published: August 2019

Abstract
Drug reconciliation is needed on Diabetic Mellitus patient, specially geriatry patient. North Sulawesi include in 17 provinces with high Diabetic Mellitus prevalence in Indonesia, so drug reconciliation is needed. The aim of this research is to identify the potency of drug need reconciliation on ederly Diabetic Mellitus patient. This research method was divided into two stages to identify treatment discrepancies in elderly DM patients who left the Kandou Hospital. The second stage is a qualitative descriptive study with in-depth interviews with patients including perception, choice tendency and patient willingness to pay for drug reconciliation services. Interviews were done on health service staff about perception, tendency of choice and willingness of service providers to be paid for the implementation of drug reconciliation. The results of the study included 11 intentional discrepancies from 32 patients. The most accidental nonconformity in the form of omission medication was 28.12%. Patients don’t know about drug reconciliation and service providers don’t know about drug reconciliation. All the parties support drug reconciliation service. Drug reconciliation has the potential to be implemented in Manado, especially in Kandow Hospital as a referral center.
A simple low-cost video-based surveillance system for a flash flood warning system
Authors: Mosey H I R , Pandara D P , Bobanto M D , Sangian H S 
Published: August 2019

Abstract
Flash flood is the most common and frequent natural disasters worldwide and can cause a loss of life and damage to property and the environment. In 2014, Manado city has experienced the most devastating flood that caused 19 people died, 10,884 homes destroyed, 2,091 people became homeless and estimated an economic loss of US$ 124 million. The huge loss was caused by the people and government did not receive information about water level rising on the watershed of the Tondano River. In conventional, decision maker needs the precipitation data and critical threshold value to issue the evacuation. There is an urgent requirement for end-to-end solution where the flash flood early warning system (FEWS) which can processed data in real-time can be integrated with Video-Based Surveillance System to take a role in saving peoples life. The aim of this study was to create a stand-alone system (Sensor Node) that could be placed on the watershed to monitor the water level rising using a microcomputer, a camera and a distance sensor. The aim of the system proposed was to measure the water level rising and when the threshold value was reached, the system would capture and display a real-time video. Future research can be done to “go-live” and posted the captured real-time video on the YouTube or Facebook in which people used them widely as a social media
Comparison of hierarchical clustering methods (case study: data on poverty influence in North Sulawesi)
Authors: Mongi C E , Langi Y A R , Montolalu C E J C , Nainggolan N 
Published: August 2019

Abstract
Grouping of Large data has been carried out in various fields. One method for grouping is cluster analysis where this method consists of hierarchy and non-hierarchy method. The aim of this study was to compare the use of cluster analysis on aspects of the causes of poverty data. The method used is agglomerative hierarchical clustering, that is, the average linkage, centroid methods and ward methods. The results obtained are compared with the RMSSTD value and the smallest value is the ward method with a value of 2.0937. So the ward method is good for this case.
Comparative assessment of extraction methods of 3,4- benzopyrene from soils, bottom sediments and sewage sludge
Authors: Ahmadiev G M 
Published: August 2019

Annotation
The article is devoted to the scientific basis and principles of extraction methods of extraction of 3,4- benzopyrene (B(a)P) from soils, bottom sediments and sewage sludge, which can be used in monitoring studies, particularly in assessing the impact on the environment; in assessing the degradation changes in the soil; in monitoring the state of soils, as well as in assessing the natural and disturbed ecosystems from human activity in general; in the environmental regulation of soil pollution and other degradation processes. The data obtained may be useful in the development of environmental maps of priority pollutants. The results of studies of 3,4- B(a)P from soils, B(a)P sediments and sewage sludge can be used for zoning, actual and forecast parameters; in forecasting the environmental consequences of economic activity in the area; in assessing the risk of disasters; in assessing the feasibility and effectiveness of soil remediation contaminated with oil and petroleum products, during the environmental assessment, certification, certification of the territory or economic object of industrial and construction, industrial and transport, agro-industrial and industrial and commercial complexes.
Ultrasonic method for measuring of gas bubbles in liquids
Authors: Al-Umari I H A , Kashapov N F , Saitkulov V G , Fazlyyyakhmatov M 
Published: August 2019

Abstract
The paper proposes to use an ultrasonic method to measure the content of gas bubbles in liquids. The task is relevant in various applications. Industrial ultrasonic analyzer STOK-101 was used to implement the method.
Study of the real work of constructions of translucent facade systems
Authors: Antonov A S , Shmelev G N , Sabitov L S , Kashapov N F , Galimullin I A 
Published: August 2019

Abstract
The issues of actual operation of structures, the most common stay-brace-and-cross-beam translucent facade systems used in the fencing of buildings and structures are studied, taking into account the spatial rigidity of the elements of the system. The existing building codes of the Russian Federation, in the absence of specialized methods for calculating such systems, offer static calculation schemes for the supporting frame without taking into account the other elements of the system, including the translucent modules themselves, which do not take into account the behavior of the actual structure and often leads to an increase in the cross section of the bearing elements and their value. Thus, in order to study the actual work and bearing capacity of the structures of translucent facade systems, numerical and experimental tests were carried out with modeling of the actual operating conditions, studies were performed for a fragment of the facade system, the stress-strain state of the system structures was analyzed taking into account their spatial work. Results were obtained on the actual operation of the structures, and behavioral features were revealed under the action of critical forces, which must be taken into account when further calculating and designing such systems.
The use of technogenic dispersed waste engineering to obtain compact forms of graphite in the materials of the system Fe-C-Al
Authors: Bikulov R 
Published: August 2019

Abstract
Currently, the significant problem of domestic engineering is to improve the quality level of products based on efficient resource-saving technologies. In the paper the main emphasis has been placed on using in such a significant procurement industry of engineering, which is foundry, dispersed iron-containing with a different degree of oxidation of the designated waste element. Moreover, this use of waste is proposed to carry out both at the stage of preparation of the melt for blanks, and in the manufacture of a mold. We are talking about blanks of materials based on the system Fe-C-Al, the quality of which is largely determined by the shape of graphite inclusions.