bluuebunny/crossref_metadata_2025 huggingface dataset:
Nano-Emulsion and Nano-Encapsulation of Fruit Flavor: Review
Authors: Suyanto A , Noor E , Rusli M S , Fahma F
Published: July 2019

Nano-emulsion and nano-encapsulation of fruit flavor aim to make flavor stabilization which is generally labile in the form of liquid (emulsion) and powder (encapsulation) preparations. Nanotechnology in food is a technology to reduce food particle size to 20-200 nm which is generally followed by new properties both physical, chemical and sensory. In nano-emulsion products such as transparent color and products stability are characterized by: absence of sedimentation (creaming), unification of two particles (flocculation), unification of particles to enlarge (coalescent) and exchange of internal and external phases (inversion). In nano-encapsulation products flavor stability is maintained by reduced aroma volatility which is bound by the carrier matrix while controlling the release of aroma. The method of forming nano-emulsion uses two approaches, namely high energy such as high-pressure homogenization and ultra-sonication methods, and low energy such as spontaneous emulsification. Making an emulsion is by mixing two different compounds of polarity stabilized by the emulsifier. In the emulsion flavor system for making nano-encapsulation a biopolymer is needed which acts as a core coating. The encapsulation was made by making an emulsion first, then one of the drying techniques was carried out such as spray drying, drum drying and freeze drying. This literature review describes nano-emulsion techniques and nano-encapsulation of fruit flavor
Dynamics of the Bacterial Community in Fermentation Process of Rice Straw as Animal Feed
Authors: Sulistyo  , Pangastuti A , Setyaningsih R , Widyawati S D
Published: July 2019

Rice straw is a potential fiber forage as feed for ruminant. The aim of this research was to observe the potential of Stimulator Plus on improving the nutritional quality of fermented rice straw. The material that has been used in this study were rice straw, stimulator plus, starbio, urea, and molasses. Completely Random Design has been applied in this experiment, with four treatments fermentation period (0,7,14, and 21 days) with three replications, Proximate Test and Van Soest to determine the nutrient content of fermented products. The Next-Generation Sequencing (NGS) method for metagenomic analysis of a microorganism. The observed variables were physical quality and chemical quality. Fermentation period at seven days increased the crude protein content and decreased the Neutral Detergent Fiber and acid detergent fiber of fermented rice straw (P<0.01). The bacterial diversity in fermented rice straw was measured using some indices: Chao1 index varied from 1717 to 2599; Shannon index varied from 20.66 to 23.72; Simpson index varied from 4.086 to 4.813; Abundance-based Coverage Estimator (ACE) index varied from 31.916 to 34.838; Se.ACE index varied from 1987.61 to 2905.7. The Bacillaceae and Streptococcaceae were always found throughout the fermentation. Bacterial community dynamics were found different in each treatment.
Kefir Produced from Red Rice Milk by Lactobacillus bulgaricus and Candida kefir Starter
Authors: Sulistyaningtyas A R , Lunggani A T , Kusdiyantini E
Published: July 2019

Kefir is a dairy product commonly fermented by bacteria and yeasts. One of the potential vegetable milk materials to be used in kefir production is milk from red rice. Studies of fermentation of milk from red rice to produce kefir are barely found. This study aimed to determine the nutrient content of red rice milk kefir fermented using mixed of microorganisms, Lactobacillus bulgaricus and Candida kefir, in various concentrations of 3%, 9%, and 15%, respectively. The content of carbohydrate, fat, protein, water, and ash was measured using proximate analysis, while their content of lactic acid and alcohol was assayed using titration method. The results showed that fat, water and ash content in all resulted kefir products met standard quality of kefir, whereas carbohydrates and protein content did not. Treatment using the set mixed starters at a concentration of 9% was found to be able to produce kefir with a lactic acid content of 2.19%. Increasing alcohol content of kefir was dependent by starters. Generally, all treatments were able to produce kefir with alcohol content of 1.5% on average. As conclusion, fermentation of red rice milk at concentration of mixed starters at 9% has nutrient content which meet standard quality of kefir.
Variant Flavors Innovation Clorot with its Making Techniques as an Effort to Develop Products in Purworejo
Authors: Ramadhani A G , Hamidah S
Published: July 2019

The purpose of this research is to Purworejo’s traditional snacks, which are highlighted by making techniques, innovating flavors and highlighting them with interest so that they are in demand by all groups and become souvenirs from Purworejo. The method used is research and development. The procedure used is 4D (Define, Design, Develop, Disseminate). This research was conducted in several stages, namely 1). determine the recipe used. 2). Innovatingrecipes according to the flavor variants to be made. 3). Developing, testing was carried out by 2 experts in the culinary field and 19 students of Family Welfare Education, UNY Postgraduate Program. 4). dissemination is carried out by the wider community with product exhibitions. The results concluded that the products produced from this study were better than those in the market and were in great demand by the public at all levels in terms of taste, shape, texture, aroma.
Effect of Hypoiodous Acid (HIO) Treatment on Color and pH Changes in Snake Fruit (Salacca edulis Reinw.) during Room Temperature Storage
Authors: Al-Baarri A N , Legowo A M , Wratsongko A C D , Puspitoasih A D , Izzati L , Auliana E , Michael  , Pangestika W , Hadipernata M , Broto W
Published: July 2019

Snake fruit (Salacca edulis Reinw.) is a tropical fruit with short shelf time because it is highly susceptible on fungal infection and enzymatic browning reaction. The color and pH changes of the fruit caused by enzymatic browning is one of the indicator of the damaged fruit that was caused by activation of polyphenol oxidase enzyme (PPO). One of the possible alternative agent to inhibit this reaction is using hypoiodous acid (HIO), which was known as an antibacterial and antifungal compound. The purpose of this study was to analyze correlation between color changes and pH value for HIO treatment on snake fruit during 15 days at room temperature storage (30±5°C). Color changes analyze referred to L*a*b* analysis was done using digital color meter and the pH test was done by using portable pH meter. The result indicated that HIO could maintain color changes (L*a*b* value) and pH of snake fruit during storage at room temperature which caused by enzymatic browning reaction. As conclusion, HIO could be used as alternative compound to inhibit enzymatic browning in snake fruit through the detection in color and pH changes.
The characteristics of nata-de guava (Syzygium samarangense) with certain interaction on the proportion of sprout extract (Phaseolus vulgaris) and sucrose
Authors: Setiani B E , Pramono Y B , Darmawan B R
Published: July 2019

This research was aim to determine the interaction between the proportion of sprout extract and sucrose on the characteristics of nata made from indigenous water guava of Demak. The yields, thicknesses, water content and organoleptic characteristics of nata including taste, colour and texture were become parameters which obtained through over analyzed the data. The parameters were treated by addition of bean sprout extract (A) and sucrose (C) in a variety of concentrations (5%, 10% and 15%). This research used a complete randomized design (CRD) factorial pattern with 2 factors of 9 treatments and 3 repetitions. The data obtained were being analyzed by ANOVA for rendemen, thicknesses, and water content of nata. While for the organoleptic was subjected to the Kruskal-Wallis test. The results showed that there were some effect between the addition of bean sprout and sucrose extract to the rendemen, thicknesses and color value of nata. The addition of 5% bean sprouts extract and 5% sucrose were being the best treatment that resulted in rendemen = 9.53%, thickness = 6.65mm, water content = 98.22%. In terms of preferences, nata with the addition of 5% bean sprouts extract and 5% sucrose were being the most desirable both in color, taste, and texture.
Nutrition for Pregnant Women: What Should be Informed and How do Health Professionals Provide It?
Authors: Sulistyowati E
Published: July 2019

Nutrition for pregnant women is one of the most essential factors that influence the outcomes of maternal and infant. Pregnant women can gain nutrition information from many sources including consultation to health professionals. However, some studies showed that mother received lack of nutrition information during pregnancy and the evidence regarding the nutrition advice for pregnant women is limited. A literature review was conducted to identify the nutrition information received by mothers during antenatal period. This review included qualitative and quantitative studies which concern in the nutrition advice during pregnancy and the strategy used by health practitioners to provide information about pregnancy nutrition in the antenatal care. The included studies were searched from electronic databases such as Medline, CINAHL, Cochrane Library, ProQuest Central and PubMed Central, and also from Google scholar. This review produced seven studies included qualitative and quantitative research. Generally, women were not receiving adequate nutrition education during pregnancy. Health practitioners in the developing countries use counselling during antenatal care to provide information about nutrition for pregnant women, while in the developed countries, health professionals prefer to use online and social media. The evidence of healthcare professionals in providing nutrition information for pregnant women is limited. Nutrition counselling and online media were identified as effective tools in promoting a healthy diet and supplementation for pregnant women within some population groups. Further studies about health practitioners’ strategies in providing nutrition education during antenatal care are highly recommended.
Food Safety in the Protection of the Right to Health
Authors: Damayanti F N , Wahyati E
Published: July 2019

Food safety is still not getting the attention it should; therefore the condition of food safety in Indonesia is still a concern. WHO reports that around 2 million of the world’s population die every year due to unsafe food. In Indonesia, Indonesia Agency of Drug and Food Control (BPOM) reported that the outbreak of food poisoning caused the death of 2500 people and as many as 411,500 people sick each year. Food safety is a right for the community but has not been accomplished until now. The study aimed to describe food safety in the protection of the right to health. The research method used was literature review and analysis used descriptive research. The results of the study showed that the condition of food safety in Indonesia still lacks good quality with the number of the outbreak of poisoning cases. Protection of the right to health as regulated in the Health Law Number 36 of 2009 has not been well carried out. Food safety in the protection of the right to health has not been realized because there are still many dangerous food products circulating in the market so that there needs to be strict regulation from stakeholders in protecting the right to health for the community.
The Characteristics of Kerupuk Gembus
Authors: Afifah D N , Nugrahani G , Hastuti VN , Arifan F
Published: July 2019

Kerupuk gembus or soy pulp crackers is an innovated snack product made from tapioca flour combined with gembus, solid waste of tofu production. Gembus contains high fiber and protein useful for enhance the fiber and protein content of foods. The aim of the experiment was to determine the suitable composition of kerupuk gembus and the use of additives in the kerupuk production. Formulation used were modified on the gembus ratio and the additives use. In the physical characteristics of kerupuk gembus, it showed significant difference in hardness and swelling ability between all formulations. The proximate results showed that kerupuk gembus contains high fiber ranged between 38.1 to 67.4%. From the sensory evaluation and triangle test, it showed that the kerupuk gembus quite liked by the panelists were kerupuk with gembus and tapioca flour 1:1 ratio with Sodium Tripolyphosphate (STPP) 0.5%w (A1), kerupuk with gembus and tapioca flour 1:1 ratio without any additives (A3), and kerupuk with gembus and tapioca flour 2:1 ratio without any additives (B3). Author suggested the best formulation for consumption was kerupuk with gembus and tapioca flour 2:1 ratio without any additives.
Anticancer potential of kebar grass (Biophytum petersianum), an Indonesian traditional medicine
Authors: Darwati I , Nurcahyanti A , Trisilawati O , Nurhayati H , Bermawie N , Wink M
Published: July 2019

Biophytum petersianum Klotzsch (kebar grass) has been used in Indonesia as traditional medicine. The objective of the current study was to evaluate the cytotoxic activity against several human cancer cells. The plants were collected from Purworejo, Central Java, Indonesia and extracted using methanol and dichlormethane. The extracts were analyzed for its antioxidant activity using DPPH (2,2 diphenyl-1-picrylhydrazyl) method. Cytotoxicity was examined against human acute lymphocytic leukemia cell (CCRF-CEM), multidrug resistance human acute leukemia cell (CEM/ADR5000), human cervical cancer cell (HeLa), human pancreatic carcinoma (Mia-PaCa2) and breast cancer cell (MCF-7) using colorimetric assay for assessing cell viability. The results indicated that methanol extract exhibited higher antioxidant activity as compared to dichlormethane extract. Both extracts exhibited moderate cytotoxicity against several human cancer cells, such as those of CCRF-CEM, CEM/ADR500, Mia-PaCa2 and MCF. This finding was the first report suggested that kebar grass from Purworejo, Central Java, Indonesia was potential as antioxidant and anticancer. Further comprehensive studies on the mechanism of actions are necessary to support this finding.
Optimization of Metal Tapping Cycle Operation at INALUM
Authors: Buandra Ade
Published: July 2019

PT Indonesia Asahan Aluminium (Persero) “INALUM” as a Holding State-Owned Mining Industry since November 27, 2017 has passed through long journey until now. As Holding Company, INALUM must maintain and improve competitiveness and the culture of continuous improvement. One of the improvements continuously maintained since joint venture Company between Indonesian Goverment and Japan Consortium is Optimization of Metal Tapping (MT) cycle Operation. The objective of the improvement is to minimize equipment utilization such as Anode Changing Crane (ACC), Ladle and Molten Transport Car (MTC), Minimize man hour, Hidrogen Flouride (HF) gas Emission and improve safety condition. By doing Site observation and direct measurement to understand existing system, analized the data, design new system and take into account of new system to calculate cost benefit analysis and implemented the new system. INALUM has managed to get some benefits from production optimization through motion and time study for lean manufacturing. And the benefits are; optimization of MT cycle operation has successfully reduced ladle utilization for MT until 14 Ladles/day, ACC operation hour 20.5 %, MTC operation hour for ladle transportation 10.5%, Man hour 20.5% for MT work and 10.5 % for ladle transportation, HF Emission gas 20.5 % that caused by MT Operation, balancing operation work and improve safety condition.
Identify The Operational Risk Of The Port By The Risk Breakdown Structure (RBS) Method
Authors: Juliza H , Anggiat H O S
Published: July 2019

The risk arises from the uncertainty that comes from internal and external factors. Risk is quite complex in the port will affect the sustainability of the company’s business, especially related to port operations. Operational risk is a risk arising from the implementation of the business functions of the company namely; systems, processes, people, as well as external events. Successful measurement of operational risk will be greatly influenced by the reliability and effectiveness of risk measurement methods. The Risk Breakdown Structure (RBS) method adopted from the Work Breakdown Structure (WBS) will be able to define and group risk-based risks for each level in detail so that the measurement of operational risk provides a structured overview of all risks facing the firm. The scope of port activities studied in this study is related to the flow of goods categorized into 4 parts namely; ship service, goods service, loading and unloading service, and container terminal service. From the identification result, there are 9 operational risks in which each group is divided into operational risk category.
Environmental Vitality Study on Shophouse Area. Case study: Asia Mega Mas Shophouse Area, Medan
Authors: Pohan Ahmad Fadil , Ginting Nurlisa , Zahrah Wahyuni
Published: July 2019

The vitality of the area is the ability of an area to survive. Vitality area can be seen from the life of the area approximately 24 hours. A vital and lively area certainly has a high activity in it. One element in the urban vitality is the environmental vitality that prioritizes physical characters. It has an important role in creating vitality in urban areas. High environmental vitality is not impossible to increase the economic, social and cultural vitality in an urban area. The purpose of this study is to identify what factors are related to the environmental vitality and find the correlation of each factor to the environmental vitality. The research method used is mixed methods that are descriptive evaluative and quantitative descriptive method. Descriptive evaluative in this study is used to identify environmental conditions in the area which is then compared with the frequency of the questionnaire results. While the quantitative method is used to get the level of correlation of each factor which is then interpreted. The number of samples in this study is 100 samples divided into 50 visitors and 50 owners. There are 4 (four) factors that correlate the environmental vitality that is a comfort, safety, secure, and pleasure. While the factor of pleasure is the most correlated factor from the visitor side of the area while regarding occupants of the secure factor is a factor that has a moderate level of correlation in the environmental vitality.
IMPROVING THE ERGONOMIC CONSTRUCTION OF KUE BALOK BAKING EQUIPMENT FUELED BY LIQUEFIED PETROLEUM GAS (LPG)
Authors: Novirani Dwi , Adianto Hari , Giovani Febrian , Industri Jurusan Teknik , Industri Fakultas Teknologi
Published: July 2019

Kue Balok seller in Bandung are still using baking equipment fueled by charcoal, which have shortcomings such as long setting time for combustion, residual burning of charcoal (e.g smoke and dust) that may contain carcinogens, which is bad for health, so that the design of the Kue Balok baking equipment eco-friendly gas-fuel needs to be made, and the shortcomings from the equipment that uses charcoal must be removed in order to make it safer for the operator, consumer, and for the environment. (Novirani et al., 2017), therefore the prototype of ergonomic Kue Balok baking equipment is created, functionally tested by using FAST (Framework for the Application of System Thinking) method, and the improvement made for the baking equipment is a change for the burner and the addition of plate ontop of the burner to anticipate the wasting of heat, so the prototype resulting works better, and is expected to be used indoors such as restaurant malls and weddings.
Cutting tools simulation with different parameter
Authors: Siregar Ikhsan , Saedon Juri Bin , Adenan Mohd Shariman
Published: July 2019

Previous studies have described that micro-devices either with analysis and simulation viewing that micro tools a very central role in micro machines, and microtool geometry has a direct upshot on the value of the last process. Design geometry micro milling tools for was taken from macro tools, where can be assumed that adverse effects occurring during the process of milling is analogical, which basically means the formation of chip and the process of kinematic is in the kind of tools. In this research also mentioned that there is often structural detail that inhibits miniaturization. To define the optimal parameters in the micro milling then that should be taken into account is to take effect of minimum chip, cutting refraction, and spindle run-out, development is required for the model of micro milling forces.
Tool wear investigation in drilling titanium alloy
Authors: Siregar Ikhsan , Saedon J.B. , Adenan Mohd Shahriman , Nor Norhafiez Mohd , Azmi Muhammad Firdaus Mohammed , Jamaludin Mohd Hafiz Bin
Published: July 2019

During the process of drilling a titanium alloy it can lead to several sources of difficulties. At tall temperatures, titanium can converted chemically lively besides will tend to react with most tool materials such as steel, copper, and other objects. In this study, solid carbide drill will be accustomed drill titanium alloys using different cutting parameters. This research is an experimental study in which to show a relationship between cutting constraints for example feed speed and spindle speed during tool wear and to see developments in the study of wear of solid carbide bit drill bits. The experiment was carried out using a CNC milling machine when drilling on titanium alloys with dry cutting conditions. The three types of testing will be carried out using different cutting parameters namely spindle rapidity of 2387 rpm, 3183 rpm and 3979 rpm then food speed of 29 mm / minute, 48 mm / min, and 72 mm / min have been used with the same type of swivel solid carbide drill. The results show that by applying different or thrilling cutting parameters for spindle speed and feed speed is very influential on the presentation of the bit tool when drilling titanium alloys. Experiment 1 shows the best tool life performance results after drilling Titanium in lower cutting parameters 2387 rpm and 29 mm / minute. Based on observations, it shows that lower cutting parameters must be used once drilling the Ti-6Al-4V to achieve a better act than before.
Lean six sigma for manufacturing industry: a review
Authors: Siregar Khawarita , Ariani Farida , Ginting Elisabeth , Trie Dinda M P
Published: July 2019

The literature review is a review of several published journals on a particular topic. Lean Six Sigma (LSS) is a method that has been widely used in research in various fields and continues to grow, so it is important to review this method to get the most common topics solved. LSS is an ongoing improvement methodology with the aim of reduce costs for producing poor quality, reduce waste of non-value-added activities and increase value for consumers and company. The purpose of this review is to find out the objective of using LSS, the tools used in implementing LSS in the manufacturing industry and to identify the factors that have caused the company’s failure to implement LSS.
An integrated production and inventory model considering reworks and two types of demand simultaneously in a two level supply chain network
Authors: Jonrinaldi  , Rahman T , Henmaidi  , Wirdianto Eri , Muluk Asmuliardi
Published: July 2019

This study proposed an integrated production and inventory model for multiple items or products considering two types of demand (continuous and discrete demand) and rework process of defect products and disposal in a two level supply chain network consisting of a vendor and a buyer. The multiple items or products are processed and produced in a single facility of the vendor. This model developed is applied for the system consisting of a vendor and a buyer where the vendor produces multiple items and delivers apart of them to the buyer as the discrete demand and others as continuous demand to end customers. During the production time there will be some defect products where apart of them will be reworked to be a good ones and some others will be disposed of. A mathematical model is built to describe the problem studied referred to the basic inventory models. The continuous demand coming from the other customers are served at anytime while the discrete demand from the buyer are served by the vendor using a number of deliveries shipments during the cycle time. The aim of the model developed is to minimize the total operational cost of the supply chain network. The model then is solved by algorithm and optimization methods as solution procedures. A numerical example is given to demonstrate the practical usage of the model and results are discussed. Sensitivity analysis to show the changes of optimal solutions which are affected by the changes of input parameters is also performed. Last, conclusions and potential future research are noted and explained.
Strategy and policy for increasing work productivity of operators in the steel industry through work improvement with lean method (journal review)
Authors: Herlambang A , Hidayati J
Published: July 2019

Increasing tight of competition in the steel market and then need to be taken to make efficiency and effectiveness in the company. Not achievement of production targets which have been set that it will can have a negative impact for the company. Therefore it is necessary to create a good strategy to make the right policy to solve in the internal problems of production company. One the right of strategy for a manufacturing company is to use the Lean Method. Due to some approaches and tools can be used by manufacturing companies. This articel use balancing analysis and work standards. Some tools in lean method can be used adjusted to situation and the conditions of the company that can also improve the standardization of work and improve productivity of manufacturing. Therefore it is necessary to conduct more in depth empirical studies in applying this methode. Based on the results of this review literature study is expected readers can implemen lean method in accordance needs of manufacturing companies.
Nawaz, Enscore, Ham (NEH) Algorithm To Minimization Of Makespan In Furniture Company
Authors: Rizkya I , Syahputri K , Sari R M , Siregar I , Tambunan M M , Anizar  , Tarigan U , Isnaini N
Published: July 2019

This study describes production scheduling to minimize the delay in delivering products to consumers. Production scheduling using Nawaz, Enscore, Ham (NEH) Algorithm is done to minimize the total processing time of the product so that the product is finished on time. The fulfillment of due date affects the process of delivering products to consumers. Production scheduling is done in the furniture industry that runs the First-Come-First-Serve (FCFS) scheduling system. This study also compares the performance of the FCFS scheduling system with NEH Algorithm. FCFS scheduling is the existing scheduling systemthat has been implemented. The results of production scheduling with the NEH algorithm indicate the time required to complete all of orders (makespan) more shorter than the First Come First Serve method. the NEH Algorithm is smaller at 78.61 hours or 5.07% than than company’s actual method, the FCFS system. The performance of NEH algorithm also proves that it is better than company’s actual method with the efficiency index value of 1.05.
Distribution Center material flow control: a line balancing approach
Authors: Aamer Ammar M , Islam Sri S
Published: July 2019

Distribution Center (DC) operations entail several steps and processes to deliver the product/service to the customer. With processes that entail several steps, it is expected that flow issues will arise. One of the most troubling issues in DCs is the material flow balance, especially in DCs with semi-automated facilities. In such facilities, there is so much reliance on the machines to do the work more efficiently. However, if we do not understand the logic of the machines and the flow, the process become inefficient and we create more bottlenecks and unbalanced production flow between input and output. The objective of this paper is to highlight the DC flow issues in semi-automated flow. More specifically, the paper focuses on the issue of running daily production/material flow based on the number of available people and not the output number required per day. We applied the line balancing approach as one of the lean manufacturing strategies in managing flow. We developed a line balance tool to help practitioners control the production flow more efficiently.
User interface evaluation of official store for FMCG (fast moving consumer goods) products in e-commerce website using user experience approach
Authors: Lestari R A , Muslim E , Moch B N
Published: July 2019

Currently, digital technology makes people can do online shopping using e-commerce. Sales of FMCG products through e-commerce websites are currently growing rapidly and will continue to improve in the following years. When using a website, user experience becomes more important than any other products or services. However, from previous research, there is still usability problem when a user using the official store for FMCG product in an e-commerce website. This study aims to evaluate the official store’s user interface using the user experience approach with performance metrics, self-reported metrics, behavioral metrics, and issue-based metrics that assess performance, perception, behavior, and issue that the user perceives when interacting with the website. Based on the evaluation results, the dimensions of ease of use, interface quality, and satisfaction was not good enough, so that strategy and interface design recommendation are done.
User experience modeling on consumer-to-consumer (c2c) e-commerce website
Authors: Hellianto G R , Suzianti A , Komarudin
Published: July 2019

Rapid technology and communication developments have brought us to the digital age, where its media, such as the internet become one famous media that is widely used for various purposes around the world. Many organizations view this situation as a space or new media to do business expansion as an innovative way of doing activities that meet the communities’ expectations of economy-related aspects of convenience, known by the term of e-commerce as one alternative options for the organizations as a medium of information to facilitate the presence of interaction between sellers and buyers without limited time and space, where their progress was supported by the use of the website. How the user experience in interacting with the website become an important key in the advancement of the e-commerce. This research provides user experience modeling on e-commerce website in order to be able to increase the success of e-commerce business performance through the use of the website. This research focuses on e-commerce type of C2C in Indonesia with the aim to model the relationships of each user experience factors using structural equation modeling.
Inventory and Transportation Model for Decision Making in Cement Industry (Case study at PT Semen Padang)
Authors: Sulistyo Daniel Eko , Jonrinaldi  , Herryandie Alexie
Published: July 2019

To survive the cement business competition, logistics strategy becomes one of the key factors. Demand fluctuations force companies to make dynamic decision. Any logistic operation decisions determine amount of total cost. Decision of production method can determine both inventory cost and stock out cost. In the other side, decision of transport order determine transport cost, inventory cost and stock out cost. PT Semen Padang is one of companies that produce and trade cement and clinker with 10,400,000 ton cement production capacity per year. Currently, most of cement production is done in Indarung (about 25,000 ton per day), in mass production to prevent stock outs. Customer demand is supplied by land routes that begins from Indarung and sea route that begins from Teluk Bayur. Cement freight from Indarung to Teluk Bayur is used bulk train and bulk truck. PT Semen Padang cooperate with PT Kereta Api Indonesia where there are transport targets for a period which if not achieved, then PT Semen Padang still has to pay a number of targets. The authors believes that there must be something that can be used to determine what should be the order of production and transportation at one time (daily), so that the optimal cost in a period is reached. The authors do the system modelling and descriptions of the required parameters so that the mathematical formulation can be compiled to be applied to the computer simulation that can be used by logistics manager to take operational decisions.
Analytical Hierarchy Process and PROMETHEE as Decision Making Tool: A Review
Authors: Ishak Aulia , Asfriyati  , Akmaliah Vina
Published: July 2019

Journal reviews published on a typical topic are called review literature. AHP is a multi-criteria decision that is widely used that makes research tools in various fields and continues to improve its use, so we can conduct a review of AHP and PROMETHEE to get the most commonly studied topics. AHP provides a proven and effective way to handle complicated decision making and can assist in analyzing collected data and speeding up decision making methods and identifying and weighing criteria. Rating Organization Method Preference for Enrichment Evaluation (PROMETHEE) is an established decision support system that deals with the assessment and selection of a series of options based on several criteria with the aim of obtaining rank among them. Simultaneously can deal with qualitative and quantitative criteria. The purpose of this paper is to find out about the use of PROMETHEE and Analytical Hierarchy processes as decision-making tools.
Designing production planning optimization model using linear programming method at a coal supply company
Authors: Zagloel T Y M , Napitupulu R A S
Published: July 2019

A coal supply company in Jakarta that acts as a terminal and a coal processing plant has no production planning method yet, while the demand faced is very volatile. This resulted in the company’s profit to be not optimal. Therefore, it is needed a mathematical model that can be used to make the right production planning so that the company can maximize the company’s profit. Mathematical model is built with Linear Programming method. The objects to be research are fine, nut, and rom coal. The result of this research is obtaining optimum quantity of production from three product types and profit obtained each period in the next 12 periods (May 2018 – April 2019).
Performance of Generator Pneumatic for Power Plant of Ocean Wave
Authors: Indriani A. , Hendra  , Suhartini Yenni , Tanjung Ariani
Published: July 2019

Pneumatic mechanism has been used in the electrical fields, industrial fields, automotive fields, mechanical fields and so on. The principle of pneumatic work is up and down the piston due to the pressure happen in this system. This mechanism can be applied for ocean wave power generation by use wave water. In the previous study, pneumatic mechanism has been used for mini generator of wave power plant [1]. Component of generator for power plant of ocean wave consist on shaft, tube, magnet neodymium, buoys, lamp LED and wire. In this paper we will focus on the varying of dimensions and position of valve and number of buoys. The results show that position valve of tube piston with double exhaust valve can be work well to give output (Voltage) compare the single exhaust valve. The output of position of tube piston with double exhaust valve is 3.2 Volt with 5 buoys and 2 parallel tube piston.
Integrated Model Development in Information Technology Adoption
Authors: Sanco S , Harmein N , Rahim M , Nazaruddin
Published: July 2019

Electronic services have become an important part in the implementation of electronic governance. Government electronic services are an important tool for effective cooperation in any country between government, authorities, citizens, organizations, and so on. The purpose of this research is to identify and collect, analyze and compile various factors that influence the implementation process of electronic government services. The use of e-government is very dependent on how the user, trust in using and adopting the service. Some barriers to adopting e-government services such as lack of trust are considered as one of the main obstacles. In addition, citizens ‘trust in e-government and social influence were found to be significant predictors of citizens’ behavioral intentions to use e-government services. This study contributes by providing a conceptual model that is useful for studying citizen trust and the behavior of using e-government services in Indonesia.
Measurement and Proposed Improved Supply Chain Performance approach With PDCA frame work
Authors: Matondang Nazarudin , Sitompul Fachri Rizky
Published: July 2019

Supply Chain Management covers all the activities since material came from the supplier, then the material was processed into semi-finished products or finished products until the product is distributed to consumers. To know the performance of the company’s Supply Chain, measurement is needed. From these measurements will be obtained result, so good or not good performance of the company’s Supply Chain can be seen and can find the weaknesses of existing systems to be repaired. Given a good supply chain performance, the performance the company will increasingly focus and provide benefits, whether for the company, suppliers, and consumers. The company in this research is a company engaged in manufacturing Crude Palm Oil. The delayed raw material of fresh fruit bunches from suppliers resulted in fluctuating production numbers which need to be identified Supply Chain in the manufacturing process to maximize CPO production. By the result of supply chain performance measurement by using Supply Chain Operation Reference (SCOR) method there are 55 KPI that is 10 KPI for perspective plan, 5 KPI for perspective source, 15 KPI for perspective, deliver, 15 KPI for perspective make, and 10 KPI for perspective return. The result of scoring by using OMAX (Objective Matrix) method obtained by total index value equal to 6,1. Based on the traffic light system, the index is in the yellow category indicating that the performance of company supply chain as a whole has not achieved the expected performance even though the result is close to the target set. From KPI performance measurement result with OMAX calculation and traffic light system, it can be seen that KPI included in green category is 24 KPI, yellow category as many as 25 KPI, and red category as many as 6 KPI.
Academic review on literatures pertaining to the definitions of technological innovation capabilities in the new millennium
Authors: Siallagan Sahala , Silaban Robert , Ali Amir Yazid
Published: July 2019

The aim of this paper is to review the literatures on technological innovation of industries in relating to the growth of the economy in past decade. The data and ideas on this paper come primarily from review articles relating to the economic development of the nations. The level of success in innovation in the various technology differs among countries because of the different national background and cultures. Innovation technology has always played a critical role for the long-term survival of organizations. This paper serves as a description to the researchers in predicting for the next future study to improve the better quality and standard of living.
Predicting bacterial virulence factors – evaluation of machine learning and negative data strategies
Authors: Rentzsch Robert , Deneke Carlus , Nitsche Andreas , Renard Bernhard Y
Published: July 2019

Bacterial proteins dubbed virulence factors (VFs) are a highly diverse group of sequences, whose only obvious commonality is the very property of being, more or less directly, involved in virulence. It is therefore tempting to speculate whether their prediction, based on direct sequence similarity (seqsim) to known VFs, could be enhanced or even replaced by using machine-learning methods. Specifically, when trained on a large and diverse set of VFs, such may be able to detect putative, non-trivial characteristics shared by otherwise unrelated VF families and therefore better predict novel VFs with insignificant similarity to each individual family. We therefore first reassess the performance of dimer-based Support Vector Machines, as used in the widely used MP3 method, in light of seqsim-only and seqsim/dimer-hybrid classifiers. We then repeat the analysis with a novel, considerably more diverse data set, also addressing the important problem of negative data selection. Finally, we move on to the real-world use case of proteome-wide VF prediction, outlining different approaches to estimating specificity in this scenario. We find that direct seqsim is of unparalleled importance and therefore should always be exploited. Further, we observe strikingly low correlations between different feature and classifier types when ranking proteins by VF likeness. We therefore propose a ‘best of each world’ approach to prioritize proteins for experimental testing, focussing on the top predictions of each classifier. Further, classifiers for individual VF families should be developed.
Regional transcriptional architecture of Parkinson’s disease pathogenesis and network spread
Authors: Freeze Benjamin , Pandya Sneha , Zeighami Yashar , Raj Ashish
Published: July 2019

Although a significant genetic contribution to the risk of developing sporadic Parkinson’s disease has been well described, the relationship between local genetic factors, pathogenesis, and subsequent spread of pathology throughout the brain has been largely unexplained in humans. To address this question, we use network diffusion modelling to infer probable pathology seed regions and patterns of disease spread from MRI atrophy maps derived from 232 de novo subjects in the Parkinson’s Progression Markers Initiative study. Allen Brain Atlas regional transcriptional profiles of 67 Parkinson’s disease risk factor genes were mapped to the inferred seed regions to determine the local influence of genetic risk factors. We used hierarchical clustering and L1 regularized regression analysis to show that transcriptional profiles of immune-related and lysosomal risk factor genes predict seed region location and the pattern of disease propagation from the most likely seed region, substantia nigra. By leveraging recent advances in transcriptomics, we show that regional microglial abundance quantified by high fidelity gene expression also predicts seed region location. These findings suggest that early disease sites are genetically susceptible to dysfunctional lysosomal α-synuclein processing and microglia-mediated neuroinflammation, which may initiate the disease process and contribute to spread of pathology along neural connectivity pathways.
HPTLC Method for Determination of R, R-Glycopyrronium Bromide and its Related Impurities
Authors: Soliman Suzan M , EL-Houssini Ola M
Published: July 2019

An innovative high-performance thin layer chromatographic (HPTLC) method was designed, optimized and validated for the quantification of R, R-glycopyrronium bromide (GLY) and its related impurities in drug substance and drug product. Separation was performed on HPTLC plates pre-coated with silica gel 60 F254 by dichloromethane:methanol:formic acid (10:0.5:0.5, v/v/v) as a developing system. GLY and its related impurities namely, glycopyrronium impurity G and glycopyrronium impurity J, were separated giving compact well-resolved spots with significant retardation factor (Rf) values of 0.17 ± 0.02, 0.34 ± 0.02 and 0.69 ± 0.02, respectively. Quantification was done at 220 nm in the ranges of 0.3–10 and 0.2–4.0 μg/spot with limits of detection and quantification of 0.1, 0.3 and 0.05, 0.2 μg/spot for GLY and its related impurities, respectively. Good accuracy was obtained with mean percentage recovery of 99.48 ± 1.36, 100.04 ± 1.32 and 99.61 ± 0.80 and R2 ≥ 0.9968 for GLY and its impurities, consecutively. Validation parameters were presented according to the International Conference on Harmonization. The method was used to investigate impurity profile of GLY in drug substance and drug product and could be applied in routine analysis of the drug. Comparison between the developed method and the reported method revealed no statistical difference.
Subacute/chronic type A aortic dissection: a retrospective cohort study
Authors: Wu Jinlin , Xie Enzehua , Qiu Juntao , Huang Yan , Jiang Wenxiang , Zafar Mohammad A , Zhang Liang , Yu Cuntao
Published: July 2019

OBJECTIVES

Our goal was to outline the clinical presentations, surgical treatment and outcomes of subacute/chronic type A aortic dissection (TAAD).

METHODS

A total of 1092 patients with TAAD were enrolled retrospectively and divided into 2 groups based on acuity of TAAD (181 subacute/chronic vs 911 acute cases of TAAD). Early and late outcomes were investigated and compared using propensity score matching.

RESULTS

The top 3 symptoms for subacute/chronic TAAD were chest tightness (80/181, 44.2%), mild pain (65/181, 35.9%) and sweating (58/181, 32.0). Fifteen (15/181, 8.3%) patients were symptom-free. Typical symptoms of acute TAAD were less common in patients with subacute/chronic TAAD such as intense/sharp pain (48/181, 26.5%), tear-like pain (35/181, 19.3%) and radiating pain (30/181, 16.6%). Patients with subacute/chronic TAAD had better early and late survival rates, with an early mortality rate of 6.1% (11/181) compared to 11.6% (106/911) of those with acute TAAD (P = 0.038). Before propensity score matching, survival at 1, 3 and 5 years was 93.1% [95% confidence interval (CI) 89.4–96.9%], 88.4% (95% CI 83.1–93.9%) and 86.4% (95% CI 80.1–93.1%) for subacute/chronic TAAD and 86.9% (95% CI 84.7–89.2%), 82.6% (95% CI 79.9–85.3%) and 79.0% (95% CI 75.5–82.7%) for acute TAAD, respectively (P = 0.039). The propensity score matching analysis substantiated the foregoing results.

CONCLUSIONS

Subacute/chronic TAAD was clearly distinct from acute TAAD in terms of clinical presentations and had better early and late survival rates. Current surgical strategies for acute TAAD are applicable to subacute/chronic TAAD with excellent outcomes.